diff --git a/Makefile b/Makefile index 5ecb6b9e..5fa4f872 100644 --- a/Makefile +++ b/Makefile @@ -35,7 +35,8 @@ build: # This is to build all the stylesheets, etc .PHONY: build-assets build-assets: - @npm run dev + npm update + npm run dev .PHONY: install install: build diff --git a/bower.json b/bower.json index 7bbdd81c..5fffb82f 100644 --- a/bower.json +++ b/bower.json @@ -7,13 +7,7 @@ "Nabeel Shahzad " ], "dependencies": { - "lodash": "4.17.4", - "icheck": "1.0.2", - "popper.js": "^1.12.0", - "rivets": "0.9.6", - "select2": "4.0.3", - "leaflet": "1.2.0", - "leaflet-ajax": "2.1.0" + }, "license": "MIT", "homepage": "https://github.com/nabeelio/phpvms", diff --git a/package-lock.json b/package-lock.json index 376ab5bb..0b21144c 100644 --- a/package-lock.json +++ b/package-lock.json @@ -116,6 +116,12 @@ "repeat-string": "1.6.1" } }, + "almond": { + "version": "0.3.3", + "resolved": "https://registry.npmjs.org/almond/-/almond-0.3.3.tgz", + "integrity": "sha1-oOfJWsdiTWQXtElLHmi/9pMWiiA=", + "dev": true + }, "alphanum-sort": { "version": "1.0.2", "resolved": "https://registry.npmjs.org/alphanum-sort/-/alphanum-sort-1.0.2.tgz", @@ -2148,9 +2154,9 @@ } }, "cross-env": { - "version": "5.1.1", - "resolved": "https://registry.npmjs.org/cross-env/-/cross-env-5.1.1.tgz", - "integrity": "sha512-Wtvr+z0Z06KO1JxjfRRsPC+df7biIOiuV4iZ73cThjFGkH+ULBZq1MkBdywEcJC4cTDbO6c8IjgRjfswx3YTBA==", + "version": "5.1.3", + "resolved": "https://registry.npmjs.org/cross-env/-/cross-env-5.1.3.tgz", + "integrity": "sha512-UOokgwvDzCT0mqRSLEkJzUhYXB1vK3E5UgDrD41QiXsm9UetcW2rCGHYz/O3p873lMJ1VZbFCF9Izkwh7nYR5A==", "dev": true, "requires": { "cross-spawn": "5.1.0", @@ -6010,6 +6016,12 @@ "integrity": "sha1-XE2d5lKvbNCncBVKYxu6ErAVx4c=", "dev": true }, + "jquery-mousewheel": { + "version": "3.1.13", + "resolved": "https://registry.npmjs.org/jquery-mousewheel/-/jquery-mousewheel-3.1.13.tgz", + "integrity": "sha1-BvAzXxbjU6aV5yBr9QUDy1I6buU=", + "dev": true + }, "js-base64": { "version": "2.4.0", "resolved": "https://registry.npmjs.org/js-base64/-/js-base64-2.4.0.tgz", @@ -6220,6 +6232,12 @@ "invert-kv": "1.0.0" } }, + "leaflet": { + "version": "1.2.0", + "resolved": "https://registry.npmjs.org/leaflet/-/leaflet-1.2.0.tgz", + "integrity": "sha512-Bold8phAE6WcRsuwhofrQ7cOK1REFHaYIkKuj7+TBYK3ONKRpGGIb5oXR5akYotFnrWN0TWKh6Svlhflm3dogg==", + "dev": true + }, "load-json-file": { "version": "1.1.0", "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz", @@ -7657,6 +7675,11 @@ "pinkie": "2.0.4" } }, + "pjax": { + "version": "0.2.4", + "resolved": "https://registry.npmjs.org/pjax/-/pjax-0.2.4.tgz", + "integrity": "sha1-CuWIXP5mPranhhVu2cPeW8tidRM=" + }, "pkg-dir": { "version": "2.0.0", "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-2.0.0.tgz", @@ -7677,6 +7700,12 @@ "logalot": "2.1.0" } }, + "popper.js": { + "version": "1.13.0", + "resolved": "https://registry.npmjs.org/popper.js/-/popper.js-1.13.0.tgz", + "integrity": "sha1-4ef/ZcxD98+c8W8VEKdegfhPRWU=", + "dev": true + }, "portfinder": { "version": "1.0.13", "resolved": "https://registry.npmjs.org/portfinder/-/portfinder-1.0.13.tgz", @@ -10460,6 +10489,16 @@ "integrity": "sha1-Yl2GWPhlr0Psliv8N2o3NZpJlMo=", "dev": true }, + "select2": { + "version": "4.0.5", + "resolved": "https://registry.npmjs.org/select2/-/select2-4.0.5.tgz", + "integrity": "sha1-eqxQaSVhmFs007guxV4ib4lg1Ao=", + "dev": true, + "requires": { + "almond": "0.3.3", + "jquery-mousewheel": "3.1.13" + } + }, "selfsigned": { "version": "1.10.1", "resolved": "https://registry.npmjs.org/selfsigned/-/selfsigned-1.10.1.tgz", @@ -11832,12 +11871,6 @@ "indexof": "0.0.1" } }, - "vue": { - "version": "2.5.9", - "resolved": "https://registry.npmjs.org/vue/-/vue-2.5.9.tgz", - "integrity": "sha512-9B9XBpCtj8y5eJFrspIcKxIWt+lG9FMdF8qgyOlUeOIvcS4xSAvcARygbzHA6Pi0KWFj4BvxjtWbuPVWRx/wuA==", - "dev": true - }, "vue-hot-reload-api": { "version": "2.2.4", "resolved": "https://registry.npmjs.org/vue-hot-reload-api/-/vue-hot-reload-api-2.2.4.tgz", diff --git a/package.json b/package.json index 3870d081..97524bee 100755 --- a/package.json +++ b/package.json @@ -12,10 +12,18 @@ "devDependencies": { "axios": "^0.17", "bootstrap-sass": "^3.3.7", - "cross-env": "^5.1", - "jquery": "^3.2", + "cross-env": "^5.1.3", + "icheck": "1.0.2", + "jquery": "^3.2.1", "laravel-mix": "^1.0", - "lodash": "^4.17.4", - "vue": "^2.5.7" + "leaflet": "^1.2.0", + "leaflet-ajax": "2.1.0", + "lodash": "4.17.4", + "popper.js": "^1.13.0", + "rivets": "0.9.6", + "select2": "^4.0.5" + }, + "dependencies": { + "pjax": "^0.2.4" } } diff --git a/public/assets/admin/js/vendor.js b/public/assets/admin/js/vendor.js new file mode 100644 index 00000000..a33e68fe --- /dev/null +++ b/public/assets/admin/js/vendor.js @@ -0,0 +1,37404 @@ +/** + * @license + * Lodash + * Copyright JS Foundation and other contributors + * Released under MIT license + * Based on Underscore.js 1.8.3 + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ +;(function() { + + /** Used as a safe reference for `undefined` in pre-ES5 environments. */ + var undefined; + + /** Used as the semantic version number. */ + var VERSION = '4.17.4'; + + /** Used as the size to enable large array optimizations. */ + var LARGE_ARRAY_SIZE = 200; + + /** Error message constants. */ + var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.', + FUNC_ERROR_TEXT = 'Expected a function'; + + /** Used to stand-in for `undefined` hash values. */ + var HASH_UNDEFINED = '__lodash_hash_undefined__'; + + /** Used as the maximum memoize cache size. */ + var MAX_MEMOIZE_SIZE = 500; + + /** Used as the internal argument placeholder. */ + var PLACEHOLDER = '__lodash_placeholder__'; + + /** Used to compose bitmasks for cloning. */ + var CLONE_DEEP_FLAG = 1, + CLONE_FLAT_FLAG = 2, + CLONE_SYMBOLS_FLAG = 4; + + /** Used to compose bitmasks for value comparisons. */ + var COMPARE_PARTIAL_FLAG = 1, + COMPARE_UNORDERED_FLAG = 2; + + /** Used to compose bitmasks for function metadata. */ + var WRAP_BIND_FLAG = 1, + WRAP_BIND_KEY_FLAG = 2, + WRAP_CURRY_BOUND_FLAG = 4, + WRAP_CURRY_FLAG = 8, + WRAP_CURRY_RIGHT_FLAG = 16, + WRAP_PARTIAL_FLAG = 32, + WRAP_PARTIAL_RIGHT_FLAG = 64, + WRAP_ARY_FLAG = 128, + WRAP_REARG_FLAG = 256, + WRAP_FLIP_FLAG = 512; + + /** Used as default options for `_.truncate`. */ + var DEFAULT_TRUNC_LENGTH = 30, + DEFAULT_TRUNC_OMISSION = '...'; + + /** Used to detect hot functions by number of calls within a span of milliseconds. */ + var HOT_COUNT = 800, + HOT_SPAN = 16; + + /** Used to indicate the type of lazy iteratees. */ + var LAZY_FILTER_FLAG = 1, + LAZY_MAP_FLAG = 2, + LAZY_WHILE_FLAG = 3; + + /** Used as references for various `Number` constants. */ + var INFINITY = 1 / 0, + MAX_SAFE_INTEGER = 9007199254740991, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + + /** Used as references for the maximum length and index of an array. */ + var MAX_ARRAY_LENGTH = 4294967295, + MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1, + HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1; + + /** Used to associate wrap methods with their bit flags. */ + var wrapFlags = [ + ['ary', WRAP_ARY_FLAG], + ['bind', WRAP_BIND_FLAG], + ['bindKey', WRAP_BIND_KEY_FLAG], + ['curry', WRAP_CURRY_FLAG], + ['curryRight', WRAP_CURRY_RIGHT_FLAG], + ['flip', WRAP_FLIP_FLAG], + ['partial', WRAP_PARTIAL_FLAG], + ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], + ['rearg', WRAP_REARG_FLAG] + ]; + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + asyncTag = '[object AsyncFunction]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + domExcTag = '[object DOMException]', + errorTag = '[object Error]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + mapTag = '[object Map]', + numberTag = '[object Number]', + nullTag = '[object Null]', + objectTag = '[object Object]', + promiseTag = '[object Promise]', + proxyTag = '[object Proxy]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + symbolTag = '[object Symbol]', + undefinedTag = '[object Undefined]', + weakMapTag = '[object WeakMap]', + weakSetTag = '[object WeakSet]'; + + var arrayBufferTag = '[object ArrayBuffer]', + dataViewTag = '[object DataView]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to match empty string literals in compiled template source. */ + var reEmptyStringLeading = /\b__p \+= '';/g, + reEmptyStringMiddle = /\b(__p \+=) '' \+/g, + reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g; + + /** Used to match HTML entities and HTML characters. */ + var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g, + reUnescapedHtml = /[&<>"']/g, + reHasEscapedHtml = RegExp(reEscapedHtml.source), + reHasUnescapedHtml = RegExp(reUnescapedHtml.source); + + /** Used to match template delimiters. */ + var reEscape = /<%-([\s\S]+?)%>/g, + reEvaluate = /<%([\s\S]+?)%>/g, + reInterpolate = /<%=([\s\S]+?)%>/g; + + /** Used to match property names within property paths. */ + var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, + reIsPlainProp = /^\w*$/, + reLeadingDot = /^\./, + rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + + /** + * Used to match `RegExp` + * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). + */ + var reRegExpChar = /[\\^$.*+?()[\]{}|]/g, + reHasRegExpChar = RegExp(reRegExpChar.source); + + /** Used to match leading and trailing whitespace. */ + var reTrim = /^\s+|\s+$/g, + reTrimStart = /^\s+/, + reTrimEnd = /\s+$/; + + /** Used to match wrap detail comments. */ + var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, + reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, + reSplitDetails = /,? & /; + + /** Used to match words composed of alphanumeric characters. */ + var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g; + + /** Used to match backslashes in property paths. */ + var reEscapeChar = /\\(\\)?/g; + + /** + * Used to match + * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components). + */ + var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g; + + /** Used to match `RegExp` flags from their coerced string values. */ + var reFlags = /\w*$/; + + /** Used to detect bad signed hexadecimal string values. */ + var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + + /** Used to detect binary string values. */ + var reIsBinary = /^0b[01]+$/i; + + /** Used to detect host constructors (Safari). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used to detect octal string values. */ + var reIsOctal = /^0o[0-7]+$/i; + + /** Used to detect unsigned integer values. */ + var reIsUint = /^(?:0|[1-9]\d*)$/; + + /** Used to match Latin Unicode letters (excluding mathematical operators). */ + var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g; + + /** Used to ensure capturing order of template delimiters. */ + var reNoMatch = /($^)/; + + /** Used to match unescaped characters in compiled string literals. */ + var reUnescapedString = /['\n\r\u2028\u2029\\]/g; + + /** Used to compose unicode character classes. */ + var rsAstralRange = '\\ud800-\\udfff', + rsComboMarksRange = '\\u0300-\\u036f', + reComboHalfMarksRange = '\\ufe20-\\ufe2f', + rsComboSymbolsRange = '\\u20d0-\\u20ff', + rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, + rsDingbatRange = '\\u2700-\\u27bf', + rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff', + rsMathOpRange = '\\xac\\xb1\\xd7\\xf7', + rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf', + rsPunctuationRange = '\\u2000-\\u206f', + rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000', + rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde', + rsVarRange = '\\ufe0e\\ufe0f', + rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange; + + /** Used to compose unicode capture groups. */ + var rsApos = "['\u2019]", + rsAstral = '[' + rsAstralRange + ']', + rsBreak = '[' + rsBreakRange + ']', + rsCombo = '[' + rsComboRange + ']', + rsDigits = '\\d+', + rsDingbat = '[' + rsDingbatRange + ']', + rsLower = '[' + rsLowerRange + ']', + rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']', + rsFitz = '\\ud83c[\\udffb-\\udfff]', + rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', + rsNonAstral = '[^' + rsAstralRange + ']', + rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', + rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', + rsUpper = '[' + rsUpperRange + ']', + rsZWJ = '\\u200d'; + + /** Used to compose unicode regexes. */ + var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')', + rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')', + rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?', + rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?', + reOptMod = rsModifier + '?', + rsOptVar = '[' + rsVarRange + ']?', + rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', + rsOrdLower = '\\d*(?:(?:1st|2nd|3rd|(?![123])\\dth)\\b)', + rsOrdUpper = '\\d*(?:(?:1ST|2ND|3RD|(?![123])\\dTH)\\b)', + rsSeq = rsOptVar + reOptMod + rsOptJoin, + rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq, + rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; + + /** Used to match apostrophes. */ + var reApos = RegExp(rsApos, 'g'); + + /** + * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and + * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols). + */ + var reComboMark = RegExp(rsCombo, 'g'); + + /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ + var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); + + /** Used to match complex or compound words. */ + var reUnicodeWord = RegExp([ + rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')', + rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')', + rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower, + rsUpper + '+' + rsOptContrUpper, + rsOrdUpper, + rsOrdLower, + rsDigits, + rsEmoji + ].join('|'), 'g'); + + /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ + var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); + + /** Used to detect strings that need a more robust regexp to match words. */ + var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2,}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/; + + /** Used to assign default `context` object properties. */ + var contextProps = [ + 'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array', + 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object', + 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array', + 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap', + '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout' + ]; + + /** Used to make template sourceURLs easier to identify. */ + var templateCounter = -1; + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = + typedArrayTags[errorTag] = typedArrayTags[funcTag] = + typedArrayTags[mapTag] = typedArrayTags[numberTag] = + typedArrayTags[objectTag] = typedArrayTags[regexpTag] = + typedArrayTags[setTag] = typedArrayTags[stringTag] = + typedArrayTags[weakMapTag] = false; + + /** Used to identify `toStringTag` values supported by `_.clone`. */ + var cloneableTags = {}; + cloneableTags[argsTag] = cloneableTags[arrayTag] = + cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = + cloneableTags[boolTag] = cloneableTags[dateTag] = + cloneableTags[float32Tag] = cloneableTags[float64Tag] = + cloneableTags[int8Tag] = cloneableTags[int16Tag] = + cloneableTags[int32Tag] = cloneableTags[mapTag] = + cloneableTags[numberTag] = cloneableTags[objectTag] = + cloneableTags[regexpTag] = cloneableTags[setTag] = + cloneableTags[stringTag] = cloneableTags[symbolTag] = + cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = + cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; + cloneableTags[errorTag] = cloneableTags[funcTag] = + cloneableTags[weakMapTag] = false; + + /** Used to map Latin Unicode letters to basic Latin letters. */ + var deburredLetters = { + // Latin-1 Supplement block. + '\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A', + '\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a', + '\xc7': 'C', '\xe7': 'c', + '\xd0': 'D', '\xf0': 'd', + '\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E', + '\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e', + '\xcc': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I', + '\xec': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i', + '\xd1': 'N', '\xf1': 'n', + '\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O', + '\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o', + '\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U', + '\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u', + '\xdd': 'Y', '\xfd': 'y', '\xff': 'y', + '\xc6': 'Ae', '\xe6': 'ae', + '\xde': 'Th', '\xfe': 'th', + '\xdf': 'ss', + // Latin Extended-A block. + '\u0100': 'A', '\u0102': 'A', '\u0104': 'A', + '\u0101': 'a', '\u0103': 'a', '\u0105': 'a', + '\u0106': 'C', '\u0108': 'C', '\u010a': 'C', '\u010c': 'C', + '\u0107': 'c', '\u0109': 'c', '\u010b': 'c', '\u010d': 'c', + '\u010e': 'D', '\u0110': 'D', '\u010f': 'd', '\u0111': 'd', + '\u0112': 'E', '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E', + '\u0113': 'e', '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e', + '\u011c': 'G', '\u011e': 'G', '\u0120': 'G', '\u0122': 'G', + '\u011d': 'g', '\u011f': 'g', '\u0121': 'g', '\u0123': 'g', + '\u0124': 'H', '\u0126': 'H', '\u0125': 'h', '\u0127': 'h', + '\u0128': 'I', '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I', + '\u0129': 'i', '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i', + '\u0134': 'J', '\u0135': 'j', + '\u0136': 'K', '\u0137': 'k', '\u0138': 'k', + '\u0139': 'L', '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L', + '\u013a': 'l', '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l', + '\u0143': 'N', '\u0145': 'N', '\u0147': 'N', '\u014a': 'N', + '\u0144': 'n', '\u0146': 'n', '\u0148': 'n', '\u014b': 'n', + '\u014c': 'O', '\u014e': 'O', '\u0150': 'O', + '\u014d': 'o', '\u014f': 'o', '\u0151': 'o', + '\u0154': 'R', '\u0156': 'R', '\u0158': 'R', + '\u0155': 'r', '\u0157': 'r', '\u0159': 'r', + '\u015a': 'S', '\u015c': 'S', '\u015e': 'S', '\u0160': 'S', + '\u015b': 's', '\u015d': 's', '\u015f': 's', '\u0161': 's', + '\u0162': 'T', '\u0164': 'T', '\u0166': 'T', + '\u0163': 't', '\u0165': 't', '\u0167': 't', + '\u0168': 'U', '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U', + '\u0169': 'u', '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u', + '\u0174': 'W', '\u0175': 'w', + '\u0176': 'Y', '\u0177': 'y', '\u0178': 'Y', + '\u0179': 'Z', '\u017b': 'Z', '\u017d': 'Z', + '\u017a': 'z', '\u017c': 'z', '\u017e': 'z', + '\u0132': 'IJ', '\u0133': 'ij', + '\u0152': 'Oe', '\u0153': 'oe', + '\u0149': "'n", '\u017f': 's' + }; + + /** Used to map characters to HTML entities. */ + var htmlEscapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''' + }; + + /** Used to map HTML entities to characters. */ + var htmlUnescapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + ''': "'" + }; + + /** Used to escape characters for inclusion in compiled string literals. */ + var stringEscapes = { + '\\': '\\', + "'": "'", + '\n': 'n', + '\r': 'r', + '\u2028': 'u2028', + '\u2029': 'u2029' + }; + + /** Built-in method references without a dependency on `root`. */ + var freeParseFloat = parseFloat, + freeParseInt = parseInt; + + /** Detect free variable `global` from Node.js. */ + var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + + /** Detect free variable `self`. */ + var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + + /** Used as a reference to the global object. */ + var root = freeGlobal || freeSelf || Function('return this')(); + + /** Detect free variable `exports`. */ + var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + + /** Detect free variable `module`. */ + var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + + /** Detect the popular CommonJS extension `module.exports`. */ + var moduleExports = freeModule && freeModule.exports === freeExports; + + /** Detect free variable `process` from Node.js. */ + var freeProcess = moduleExports && freeGlobal.process; + + /** Used to access faster Node.js helpers. */ + var nodeUtil = (function() { + try { + return freeProcess && freeProcess.binding && freeProcess.binding('util'); + } catch (e) {} + }()); + + /* Node.js helper references. */ + var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer, + nodeIsDate = nodeUtil && nodeUtil.isDate, + nodeIsMap = nodeUtil && nodeUtil.isMap, + nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, + nodeIsSet = nodeUtil && nodeUtil.isSet, + nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + + /*--------------------------------------------------------------------------*/ + + /** + * Adds the key-value `pair` to `map`. + * + * @private + * @param {Object} map The map to modify. + * @param {Array} pair The key-value pair to add. + * @returns {Object} Returns `map`. + */ + function addMapEntry(map, pair) { + // Don't return `map.set` because it's not chainable in IE 11. + map.set(pair[0], pair[1]); + return map; + } + + /** + * Adds `value` to `set`. + * + * @private + * @param {Object} set The set to modify. + * @param {*} value The value to add. + * @returns {Object} Returns `set`. + */ + function addSetEntry(set, value) { + // Don't return `set.add` because it's not chainable in IE 11. + set.add(value); + return set; + } + + /** + * A faster alternative to `Function#apply`, this function invokes `func` + * with the `this` binding of `thisArg` and the arguments of `args`. + * + * @private + * @param {Function} func The function to invoke. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} args The arguments to invoke `func` with. + * @returns {*} Returns the result of `func`. + */ + function apply(func, thisArg, args) { + switch (args.length) { + case 0: return func.call(thisArg); + case 1: return func.call(thisArg, args[0]); + case 2: return func.call(thisArg, args[0], args[1]); + case 3: return func.call(thisArg, args[0], args[1], args[2]); + } + return func.apply(thisArg, args); + } + + /** + * A specialized version of `baseAggregator` for arrays. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function arrayAggregator(array, setter, iteratee, accumulator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + var value = array[index]; + setter(accumulator, value, iteratee(value), array); + } + return accumulator; + } + + /** + * A specialized version of `_.forEach` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.forEachRight` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEachRight(array, iteratee) { + var length = array == null ? 0 : array.length; + + while (length--) { + if (iteratee(array[length], length, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.every` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + */ + function arrayEvery(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (!predicate(array[index], index, array)) { + return false; + } + } + return true; + } + + /** + * A specialized version of `_.filter` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function arrayFilter(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * A specialized version of `_.includes` for arrays without support for + * specifying an index to search from. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludes(array, value) { + var length = array == null ? 0 : array.length; + return !!length && baseIndexOf(array, value, 0) > -1; + } + + /** + * This function is like `arrayIncludes` except that it accepts a comparator. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @param {Function} comparator The comparator invoked per element. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludesWith(array, value, comparator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (comparator(value, array[index])) { + return true; + } + } + return false; + } + + /** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function arrayMap(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; + } + + /** + * Appends the elements of `values` to `array`. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to append. + * @returns {Array} Returns `array`. + */ + function arrayPush(array, values) { + var index = -1, + length = values.length, + offset = array.length; + + while (++index < length) { + array[offset + index] = values[index]; + } + return array; + } + + /** + * A specialized version of `_.reduce` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the first element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduce(array, iteratee, accumulator, initAccum) { + var index = -1, + length = array == null ? 0 : array.length; + + if (initAccum && length) { + accumulator = array[++index]; + } + while (++index < length) { + accumulator = iteratee(accumulator, array[index], index, array); + } + return accumulator; + } + + /** + * A specialized version of `_.reduceRight` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the last element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduceRight(array, iteratee, accumulator, initAccum) { + var length = array == null ? 0 : array.length; + if (initAccum && length) { + accumulator = array[--length]; + } + while (length--) { + accumulator = iteratee(accumulator, array[length], length, array); + } + return accumulator; + } + + /** + * A specialized version of `_.some` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function arraySome(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (predicate(array[index], index, array)) { + return true; + } + } + return false; + } + + /** + * Gets the size of an ASCII `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + var asciiSize = baseProperty('length'); + + /** + * Converts an ASCII `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function asciiToArray(string) { + return string.split(''); + } + + /** + * Splits an ASCII `string` into an array of its words. + * + * @private + * @param {string} The string to inspect. + * @returns {Array} Returns the words of `string`. + */ + function asciiWords(string) { + return string.match(reAsciiWord) || []; + } + + /** + * The base implementation of methods like `_.findKey` and `_.findLastKey`, + * without support for iteratee shorthands, which iterates over `collection` + * using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the found element or its key, else `undefined`. + */ + function baseFindKey(collection, predicate, eachFunc) { + var result; + eachFunc(collection, function(value, key, collection) { + if (predicate(value, key, collection)) { + result = key; + return false; + } + }); + return result; + } + + /** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOf(array, value, fromIndex) { + return value === value + ? strictIndexOf(array, value, fromIndex) + : baseFindIndex(array, baseIsNaN, fromIndex); + } + + /** + * This function is like `baseIndexOf` except that it accepts a comparator. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @param {Function} comparator The comparator invoked per element. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOfWith(array, value, fromIndex, comparator) { + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (comparator(array[index], value)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ + function baseIsNaN(value) { + return value !== value; + } + + /** + * The base implementation of `_.mean` and `_.meanBy` without support for + * iteratee shorthands. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {number} Returns the mean. + */ + function baseMean(array, iteratee) { + var length = array == null ? 0 : array.length; + return length ? (baseSum(array, iteratee) / length) : NAN; + } + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.propertyOf` without support for deep paths. + * + * @private + * @param {Object} object The object to query. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyOf(object) { + return function(key) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.reduce` and `_.reduceRight`, without support + * for iteratee shorthands, which iterates over `collection` using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} accumulator The initial value. + * @param {boolean} initAccum Specify using the first or last element of + * `collection` as the initial value. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the accumulated value. + */ + function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { + eachFunc(collection, function(value, index, collection) { + accumulator = initAccum + ? (initAccum = false, value) + : iteratee(accumulator, value, index, collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.sortBy` which uses `comparer` to define the + * sort order of `array` and replaces criteria objects with their corresponding + * values. + * + * @private + * @param {Array} array The array to sort. + * @param {Function} comparer The function to define sort order. + * @returns {Array} Returns `array`. + */ + function baseSortBy(array, comparer) { + var length = array.length; + + array.sort(comparer); + while (length--) { + array[length] = array[length].value; + } + return array; + } + + /** + * The base implementation of `_.sum` and `_.sumBy` without support for + * iteratee shorthands. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {number} Returns the sum. + */ + function baseSum(array, iteratee) { + var result, + index = -1, + length = array.length; + + while (++index < length) { + var current = iteratee(array[index]); + if (current !== undefined) { + result = result === undefined ? current : (result + current); + } + } + return result; + } + + /** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ + function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; + } + + /** + * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array + * of key-value pairs for `object` corresponding to the property names of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the key-value pairs. + */ + function baseToPairs(object, props) { + return arrayMap(props, function(key) { + return [key, object[key]]; + }); + } + + /** + * The base implementation of `_.unary` without support for storing metadata. + * + * @private + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + */ + function baseUnary(func) { + return function(value) { + return func(value); + }; + } + + /** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ + function baseValues(object, props) { + return arrayMap(props, function(key) { + return object[key]; + }); + } + + /** + * Checks if a `cache` value for `key` exists. + * + * @private + * @param {Object} cache The cache to query. + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function cacheHas(cache, key) { + return cache.has(key); + } + + /** + * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the first unmatched string symbol. + */ + function charsStartIndex(strSymbols, chrSymbols) { + var index = -1, + length = strSymbols.length; + + while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the last unmatched string symbol. + */ + function charsEndIndex(strSymbols, chrSymbols) { + var index = strSymbols.length; + + while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Gets the number of `placeholder` occurrences in `array`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} placeholder The placeholder to search for. + * @returns {number} Returns the placeholder count. + */ + function countHolders(array, placeholder) { + var length = array.length, + result = 0; + + while (length--) { + if (array[length] === placeholder) { + ++result; + } + } + return result; + } + + /** + * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A + * letters to basic Latin letters. + * + * @private + * @param {string} letter The matched letter to deburr. + * @returns {string} Returns the deburred letter. + */ + var deburrLetter = basePropertyOf(deburredLetters); + + /** + * Used by `_.escape` to convert characters to HTML entities. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + var escapeHtmlChar = basePropertyOf(htmlEscapes); + + /** + * Used by `_.template` to escape characters for inclusion in compiled string literals. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + function escapeStringChar(chr) { + return '\\' + stringEscapes[chr]; + } + + /** + * Gets the value at `key` of `object`. + * + * @private + * @param {Object} [object] The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function getValue(object, key) { + return object == null ? undefined : object[key]; + } + + /** + * Checks if `string` contains Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a symbol is found, else `false`. + */ + function hasUnicode(string) { + return reHasUnicode.test(string); + } + + /** + * Checks if `string` contains a word composed of Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a word is found, else `false`. + */ + function hasUnicodeWord(string) { + return reHasUnicodeWord.test(string); + } + + /** + * Converts `iterator` to an array. + * + * @private + * @param {Object} iterator The iterator to convert. + * @returns {Array} Returns the converted array. + */ + function iteratorToArray(iterator) { + var data, + result = []; + + while (!(data = iterator.next()).done) { + result.push(data.value); + } + return result; + } + + /** + * Converts `map` to its key-value pairs. + * + * @private + * @param {Object} map The map to convert. + * @returns {Array} Returns the key-value pairs. + */ + function mapToArray(map) { + var index = -1, + result = Array(map.size); + + map.forEach(function(value, key) { + result[++index] = [key, value]; + }); + return result; + } + + /** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ + function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; + } + + /** + * Replaces all `placeholder` elements in `array` with an internal placeholder + * and returns an array of their indexes. + * + * @private + * @param {Array} array The array to modify. + * @param {*} placeholder The placeholder to replace. + * @returns {Array} Returns the new array of placeholder indexes. + */ + function replaceHolders(array, placeholder) { + var index = -1, + length = array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value === placeholder || value === PLACEHOLDER) { + array[index] = PLACEHOLDER; + result[resIndex++] = index; + } + } + return result; + } + + /** + * Converts `set` to an array of its values. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the values. + */ + function setToArray(set) { + var index = -1, + result = Array(set.size); + + set.forEach(function(value) { + result[++index] = value; + }); + return result; + } + + /** + * Converts `set` to its value-value pairs. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the value-value pairs. + */ + function setToPairs(set) { + var index = -1, + result = Array(set.size); + + set.forEach(function(value) { + result[++index] = [value, value]; + }); + return result; + } + + /** + * A specialized version of `_.indexOf` which performs strict equality + * comparisons of values, i.e. `===`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function strictIndexOf(array, value, fromIndex) { + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; + } + + /** + * A specialized version of `_.lastIndexOf` which performs strict equality + * comparisons of values, i.e. `===`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function strictLastIndexOf(array, value, fromIndex) { + var index = fromIndex + 1; + while (index--) { + if (array[index] === value) { + return index; + } + } + return index; + } + + /** + * Gets the number of symbols in `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the string size. + */ + function stringSize(string) { + return hasUnicode(string) + ? unicodeSize(string) + : asciiSize(string); + } + + /** + * Converts `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function stringToArray(string) { + return hasUnicode(string) + ? unicodeToArray(string) + : asciiToArray(string); + } + + /** + * Used by `_.unescape` to convert HTML entities to characters. + * + * @private + * @param {string} chr The matched character to unescape. + * @returns {string} Returns the unescaped character. + */ + var unescapeHtmlChar = basePropertyOf(htmlUnescapes); + + /** + * Gets the size of a Unicode `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + function unicodeSize(string) { + var result = reUnicode.lastIndex = 0; + while (reUnicode.test(string)) { + ++result; + } + return result; + } + + /** + * Converts a Unicode `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function unicodeToArray(string) { + return string.match(reUnicode) || []; + } + + /** + * Splits a Unicode `string` into an array of its words. + * + * @private + * @param {string} The string to inspect. + * @returns {Array} Returns the words of `string`. + */ + function unicodeWords(string) { + return string.match(reUnicodeWord) || []; + } + + /*--------------------------------------------------------------------------*/ + + /** + * Create a new pristine `lodash` function using the `context` object. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Util + * @param {Object} [context=root] The context object. + * @returns {Function} Returns a new `lodash` function. + * @example + * + * _.mixin({ 'foo': _.constant('foo') }); + * + * var lodash = _.runInContext(); + * lodash.mixin({ 'bar': lodash.constant('bar') }); + * + * _.isFunction(_.foo); + * // => true + * _.isFunction(_.bar); + * // => false + * + * lodash.isFunction(lodash.foo); + * // => false + * lodash.isFunction(lodash.bar); + * // => true + * + * // Create a suped-up `defer` in Node.js. + * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer; + */ + var runInContext = (function runInContext(context) { + context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps)); + + /** Built-in constructor references. */ + var Array = context.Array, + Date = context.Date, + Error = context.Error, + Function = context.Function, + Math = context.Math, + Object = context.Object, + RegExp = context.RegExp, + String = context.String, + TypeError = context.TypeError; + + /** Used for built-in method references. */ + var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype; + + /** Used to detect overreaching core-js shims. */ + var coreJsData = context['__core-js_shared__']; + + /** Used to resolve the decompiled source of functions. */ + var funcToString = funcProto.toString; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** Used to generate unique IDs. */ + var idCounter = 0; + + /** Used to detect methods masquerading as native. */ + var maskSrcKey = (function() { + var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); + return uid ? ('Symbol(src)_1.' + uid) : ''; + }()); + + /** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ + var nativeObjectToString = objectProto.toString; + + /** Used to infer the `Object` constructor. */ + var objectCtorString = funcToString.call(Object); + + /** Used to restore the original `_` reference in `_.noConflict`. */ + var oldDash = root._; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** Built-in value references. */ + var Buffer = moduleExports ? context.Buffer : undefined, + Symbol = context.Symbol, + Uint8Array = context.Uint8Array, + allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, + getPrototype = overArg(Object.getPrototypeOf, Object), + objectCreate = Object.create, + propertyIsEnumerable = objectProto.propertyIsEnumerable, + splice = arrayProto.splice, + spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, + symIterator = Symbol ? Symbol.iterator : undefined, + symToStringTag = Symbol ? Symbol.toStringTag : undefined; + + var defineProperty = (function() { + try { + var func = getNative(Object, 'defineProperty'); + func({}, '', {}); + return func; + } catch (e) {} + }()); + + /** Mocked built-ins. */ + var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout, + ctxNow = Date && Date.now !== root.Date.now && Date.now, + ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout; + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeCeil = Math.ceil, + nativeFloor = Math.floor, + nativeGetSymbols = Object.getOwnPropertySymbols, + nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, + nativeIsFinite = context.isFinite, + nativeJoin = arrayProto.join, + nativeKeys = overArg(Object.keys, Object), + nativeMax = Math.max, + nativeMin = Math.min, + nativeNow = Date.now, + nativeParseInt = context.parseInt, + nativeRandom = Math.random, + nativeReverse = arrayProto.reverse; + + /* Built-in method references that are verified to be native. */ + var DataView = getNative(context, 'DataView'), + Map = getNative(context, 'Map'), + Promise = getNative(context, 'Promise'), + Set = getNative(context, 'Set'), + WeakMap = getNative(context, 'WeakMap'), + nativeCreate = getNative(Object, 'create'); + + /** Used to store function metadata. */ + var metaMap = WeakMap && new WeakMap; + + /** Used to lookup unminified function names. */ + var realNames = {}; + + /** Used to detect maps, sets, and weakmaps. */ + var dataViewCtorString = toSource(DataView), + mapCtorString = toSource(Map), + promiseCtorString = toSource(Promise), + setCtorString = toSource(Set), + weakMapCtorString = toSource(WeakMap); + + /** Used to convert symbols to primitives and strings. */ + var symbolProto = Symbol ? Symbol.prototype : undefined, + symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, + symbolToString = symbolProto ? symbolProto.toString : undefined; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` object which wraps `value` to enable implicit method + * chain sequences. Methods that operate on and return arrays, collections, + * and functions can be chained together. Methods that retrieve a single value + * or may return a primitive value will automatically end the chain sequence + * and return the unwrapped value. Otherwise, the value must be unwrapped + * with `_#value`. + * + * Explicit chain sequences, which must be unwrapped with `_#value`, may be + * enabled using `_.chain`. + * + * The execution of chained methods is lazy, that is, it's deferred until + * `_#value` is implicitly or explicitly called. + * + * Lazy evaluation allows several methods to support shortcut fusion. + * Shortcut fusion is an optimization to merge iteratee calls; this avoids + * the creation of intermediate arrays and can greatly reduce the number of + * iteratee executions. Sections of a chain sequence qualify for shortcut + * fusion if the section is applied to an array and iteratees accept only + * one argument. The heuristic for whether a section qualifies for shortcut + * fusion is subject to change. + * + * Chaining is supported in custom builds as long as the `_#value` method is + * directly or indirectly included in the build. + * + * In addition to lodash methods, wrappers have `Array` and `String` methods. + * + * The wrapper `Array` methods are: + * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` + * + * The wrapper `String` methods are: + * `replace` and `split` + * + * The wrapper methods that support shortcut fusion are: + * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, + * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, + * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` + * + * The chainable wrapper methods are: + * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, + * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, + * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, + * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, + * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, + * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, + * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, + * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, + * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, + * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, + * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, + * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, + * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, + * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, + * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, + * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, + * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, + * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, + * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, + * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, + * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, + * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, + * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, + * `zipObject`, `zipObjectDeep`, and `zipWith` + * + * The wrapper methods that are **not** chainable by default are: + * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, + * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, + * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, + * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, + * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, + * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, + * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, + * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, + * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, + * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, + * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, + * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, + * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, + * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, + * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, + * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, + * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, + * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, + * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, + * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, + * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, + * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, + * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, + * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, + * `upperFirst`, `value`, and `words` + * + * @name _ + * @constructor + * @category Seq + * @param {*} value The value to wrap in a `lodash` instance. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2, 3]); + * + * // Returns an unwrapped value. + * wrapped.reduce(_.add); + * // => 6 + * + * // Returns a wrapped value. + * var squares = wrapped.map(square); + * + * _.isArray(squares); + * // => false + * + * _.isArray(squares.value()); + * // => true + */ + function lodash(value) { + if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { + if (value instanceof LodashWrapper) { + return value; + } + if (hasOwnProperty.call(value, '__wrapped__')) { + return wrapperClone(value); + } + } + return new LodashWrapper(value); + } + + /** + * The base implementation of `_.create` without support for assigning + * properties to the created object. + * + * @private + * @param {Object} proto The object to inherit from. + * @returns {Object} Returns the new object. + */ + var baseCreate = (function() { + function object() {} + return function(proto) { + if (!isObject(proto)) { + return {}; + } + if (objectCreate) { + return objectCreate(proto); + } + object.prototype = proto; + var result = new object; + object.prototype = undefined; + return result; + }; + }()); + + /** + * The function whose prototype chain sequence wrappers inherit from. + * + * @private + */ + function baseLodash() { + // No operation performed. + } + + /** + * The base constructor for creating `lodash` wrapper objects. + * + * @private + * @param {*} value The value to wrap. + * @param {boolean} [chainAll] Enable explicit method chain sequences. + */ + function LodashWrapper(value, chainAll) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__chain__ = !!chainAll; + this.__index__ = 0; + this.__values__ = undefined; + } + + /** + * By default, the template delimiters used by lodash are like those in + * embedded Ruby (ERB) as well as ES2015 template strings. Change the + * following template settings to use alternative delimiters. + * + * @static + * @memberOf _ + * @type {Object} + */ + lodash.templateSettings = { + + /** + * Used to detect `data` property values to be HTML-escaped. + * + * @memberOf _.templateSettings + * @type {RegExp} + */ + 'escape': reEscape, + + /** + * Used to detect code to be evaluated. + * + * @memberOf _.templateSettings + * @type {RegExp} + */ + 'evaluate': reEvaluate, + + /** + * Used to detect `data` property values to inject. + * + * @memberOf _.templateSettings + * @type {RegExp} + */ + 'interpolate': reInterpolate, + + /** + * Used to reference the data object in the template text. + * + * @memberOf _.templateSettings + * @type {string} + */ + 'variable': '', + + /** + * Used to import variables into the compiled template. + * + * @memberOf _.templateSettings + * @type {Object} + */ + 'imports': { + + /** + * A reference to the `lodash` function. + * + * @memberOf _.templateSettings.imports + * @type {Function} + */ + '_': lodash + } + }; + + // Ensure wrappers are instances of `baseLodash`. + lodash.prototype = baseLodash.prototype; + lodash.prototype.constructor = lodash; + + LodashWrapper.prototype = baseCreate(baseLodash.prototype); + LodashWrapper.prototype.constructor = LodashWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. + * + * @private + * @constructor + * @param {*} value The value to wrap. + */ + function LazyWrapper(value) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__dir__ = 1; + this.__filtered__ = false; + this.__iteratees__ = []; + this.__takeCount__ = MAX_ARRAY_LENGTH; + this.__views__ = []; + } + + /** + * Creates a clone of the lazy wrapper object. + * + * @private + * @name clone + * @memberOf LazyWrapper + * @returns {Object} Returns the cloned `LazyWrapper` object. + */ + function lazyClone() { + var result = new LazyWrapper(this.__wrapped__); + result.__actions__ = copyArray(this.__actions__); + result.__dir__ = this.__dir__; + result.__filtered__ = this.__filtered__; + result.__iteratees__ = copyArray(this.__iteratees__); + result.__takeCount__ = this.__takeCount__; + result.__views__ = copyArray(this.__views__); + return result; + } + + /** + * Reverses the direction of lazy iteration. + * + * @private + * @name reverse + * @memberOf LazyWrapper + * @returns {Object} Returns the new reversed `LazyWrapper` object. + */ + function lazyReverse() { + if (this.__filtered__) { + var result = new LazyWrapper(this); + result.__dir__ = -1; + result.__filtered__ = true; + } else { + result = this.clone(); + result.__dir__ *= -1; + } + return result; + } + + /** + * Extracts the unwrapped value from its lazy wrapper. + * + * @private + * @name value + * @memberOf LazyWrapper + * @returns {*} Returns the unwrapped value. + */ + function lazyValue() { + var array = this.__wrapped__.value(), + dir = this.__dir__, + isArr = isArray(array), + isRight = dir < 0, + arrLength = isArr ? array.length : 0, + view = getView(0, arrLength, this.__views__), + start = view.start, + end = view.end, + length = end - start, + index = isRight ? end : (start - 1), + iteratees = this.__iteratees__, + iterLength = iteratees.length, + resIndex = 0, + takeCount = nativeMin(length, this.__takeCount__); + + if (!isArr || (!isRight && arrLength == length && takeCount == length)) { + return baseWrapperValue(array, this.__actions__); + } + var result = []; + + outer: + while (length-- && resIndex < takeCount) { + index += dir; + + var iterIndex = -1, + value = array[index]; + + while (++iterIndex < iterLength) { + var data = iteratees[iterIndex], + iteratee = data.iteratee, + type = data.type, + computed = iteratee(value); + + if (type == LAZY_MAP_FLAG) { + value = computed; + } else if (!computed) { + if (type == LAZY_FILTER_FLAG) { + continue outer; + } else { + break outer; + } + } + } + result[resIndex++] = value; + } + return result; + } + + // Ensure `LazyWrapper` is an instance of `baseLodash`. + LazyWrapper.prototype = baseCreate(baseLodash.prototype); + LazyWrapper.prototype.constructor = LazyWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a hash object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Hash(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the hash. + * + * @private + * @name clear + * @memberOf Hash + */ + function hashClear() { + this.__data__ = nativeCreate ? nativeCreate(null) : {}; + this.size = 0; + } + + /** + * Removes `key` and its value from the hash. + * + * @private + * @name delete + * @memberOf Hash + * @param {Object} hash The hash to modify. + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function hashDelete(key) { + var result = this.has(key) && delete this.__data__[key]; + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the hash value for `key`. + * + * @private + * @name get + * @memberOf Hash + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function hashGet(key) { + var data = this.__data__; + if (nativeCreate) { + var result = data[key]; + return result === HASH_UNDEFINED ? undefined : result; + } + return hasOwnProperty.call(data, key) ? data[key] : undefined; + } + + /** + * Checks if a hash value for `key` exists. + * + * @private + * @name has + * @memberOf Hash + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function hashHas(key) { + var data = this.__data__; + return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); + } + + /** + * Sets the hash `key` to `value`. + * + * @private + * @name set + * @memberOf Hash + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the hash instance. + */ + function hashSet(key, value) { + var data = this.__data__; + this.size += this.has(key) ? 0 : 1; + data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; + return this; + } + + // Add methods to `Hash`. + Hash.prototype.clear = hashClear; + Hash.prototype['delete'] = hashDelete; + Hash.prototype.get = hashGet; + Hash.prototype.has = hashHas; + Hash.prototype.set = hashSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an list cache object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function ListCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the list cache. + * + * @private + * @name clear + * @memberOf ListCache + */ + function listCacheClear() { + this.__data__ = []; + this.size = 0; + } + + /** + * Removes `key` and its value from the list cache. + * + * @private + * @name delete + * @memberOf ListCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function listCacheDelete(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + return false; + } + var lastIndex = data.length - 1; + if (index == lastIndex) { + data.pop(); + } else { + splice.call(data, index, 1); + } + --this.size; + return true; + } + + /** + * Gets the list cache value for `key`. + * + * @private + * @name get + * @memberOf ListCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function listCacheGet(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + return index < 0 ? undefined : data[index][1]; + } + + /** + * Checks if a list cache value for `key` exists. + * + * @private + * @name has + * @memberOf ListCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function listCacheHas(key) { + return assocIndexOf(this.__data__, key) > -1; + } + + /** + * Sets the list cache `key` to `value`. + * + * @private + * @name set + * @memberOf ListCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the list cache instance. + */ + function listCacheSet(key, value) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + ++this.size; + data.push([key, value]); + } else { + data[index][1] = value; + } + return this; + } + + // Add methods to `ListCache`. + ListCache.prototype.clear = listCacheClear; + ListCache.prototype['delete'] = listCacheDelete; + ListCache.prototype.get = listCacheGet; + ListCache.prototype.has = listCacheHas; + ListCache.prototype.set = listCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a map cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function MapCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the map. + * + * @private + * @name clear + * @memberOf MapCache + */ + function mapCacheClear() { + this.size = 0; + this.__data__ = { + 'hash': new Hash, + 'map': new (Map || ListCache), + 'string': new Hash + }; + } + + /** + * Removes `key` and its value from the map. + * + * @private + * @name delete + * @memberOf MapCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function mapCacheDelete(key) { + var result = getMapData(this, key)['delete'](key); + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the map value for `key`. + * + * @private + * @name get + * @memberOf MapCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function mapCacheGet(key) { + return getMapData(this, key).get(key); + } + + /** + * Checks if a map value for `key` exists. + * + * @private + * @name has + * @memberOf MapCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function mapCacheHas(key) { + return getMapData(this, key).has(key); + } + + /** + * Sets the map `key` to `value`. + * + * @private + * @name set + * @memberOf MapCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the map cache instance. + */ + function mapCacheSet(key, value) { + var data = getMapData(this, key), + size = data.size; + + data.set(key, value); + this.size += data.size == size ? 0 : 1; + return this; + } + + // Add methods to `MapCache`. + MapCache.prototype.clear = mapCacheClear; + MapCache.prototype['delete'] = mapCacheDelete; + MapCache.prototype.get = mapCacheGet; + MapCache.prototype.has = mapCacheHas; + MapCache.prototype.set = mapCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * + * Creates an array cache object to store unique values. + * + * @private + * @constructor + * @param {Array} [values] The values to cache. + */ + function SetCache(values) { + var index = -1, + length = values == null ? 0 : values.length; + + this.__data__ = new MapCache; + while (++index < length) { + this.add(values[index]); + } + } + + /** + * Adds `value` to the array cache. + * + * @private + * @name add + * @memberOf SetCache + * @alias push + * @param {*} value The value to cache. + * @returns {Object} Returns the cache instance. + */ + function setCacheAdd(value) { + this.__data__.set(value, HASH_UNDEFINED); + return this; + } + + /** + * Checks if `value` is in the array cache. + * + * @private + * @name has + * @memberOf SetCache + * @param {*} value The value to search for. + * @returns {number} Returns `true` if `value` is found, else `false`. + */ + function setCacheHas(value) { + return this.__data__.has(value); + } + + // Add methods to `SetCache`. + SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; + SetCache.prototype.has = setCacheHas; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a stack cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Stack(entries) { + var data = this.__data__ = new ListCache(entries); + this.size = data.size; + } + + /** + * Removes all key-value entries from the stack. + * + * @private + * @name clear + * @memberOf Stack + */ + function stackClear() { + this.__data__ = new ListCache; + this.size = 0; + } + + /** + * Removes `key` and its value from the stack. + * + * @private + * @name delete + * @memberOf Stack + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function stackDelete(key) { + var data = this.__data__, + result = data['delete'](key); + + this.size = data.size; + return result; + } + + /** + * Gets the stack value for `key`. + * + * @private + * @name get + * @memberOf Stack + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function stackGet(key) { + return this.__data__.get(key); + } + + /** + * Checks if a stack value for `key` exists. + * + * @private + * @name has + * @memberOf Stack + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function stackHas(key) { + return this.__data__.has(key); + } + + /** + * Sets the stack `key` to `value`. + * + * @private + * @name set + * @memberOf Stack + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the stack cache instance. + */ + function stackSet(key, value) { + var data = this.__data__; + if (data instanceof ListCache) { + var pairs = data.__data__; + if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { + pairs.push([key, value]); + this.size = ++data.size; + return this; + } + data = this.__data__ = new MapCache(pairs); + } + data.set(key, value); + this.size = data.size; + return this; + } + + // Add methods to `Stack`. + Stack.prototype.clear = stackClear; + Stack.prototype['delete'] = stackDelete; + Stack.prototype.get = stackGet; + Stack.prototype.has = stackHas; + Stack.prototype.set = stackSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ + function arrayLikeKeys(value, inherited) { + var isArr = isArray(value), + isArg = !isArr && isArguments(value), + isBuff = !isArr && !isArg && isBuffer(value), + isType = !isArr && !isArg && !isBuff && isTypedArray(value), + skipIndexes = isArr || isArg || isBuff || isType, + result = skipIndexes ? baseTimes(value.length, String) : [], + length = result.length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && ( + // Safari 9 has enumerable `arguments.length` in strict mode. + key == 'length' || + // Node.js 0.10 has enumerable non-index properties on buffers. + (isBuff && (key == 'offset' || key == 'parent')) || + // PhantomJS 2 has enumerable non-index properties on typed arrays. + (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || + // Skip index properties. + isIndex(key, length) + ))) { + result.push(key); + } + } + return result; + } + + /** + * A specialized version of `_.sample` for arrays. + * + * @private + * @param {Array} array The array to sample. + * @returns {*} Returns the random element. + */ + function arraySample(array) { + var length = array.length; + return length ? array[baseRandom(0, length - 1)] : undefined; + } + + /** + * A specialized version of `_.sampleSize` for arrays. + * + * @private + * @param {Array} array The array to sample. + * @param {number} n The number of elements to sample. + * @returns {Array} Returns the random elements. + */ + function arraySampleSize(array, n) { + return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length)); + } + + /** + * A specialized version of `_.shuffle` for arrays. + * + * @private + * @param {Array} array The array to shuffle. + * @returns {Array} Returns the new shuffled array. + */ + function arrayShuffle(array) { + return shuffleSelf(copyArray(array)); + } + + /** + * This function is like `assignValue` except that it doesn't assign + * `undefined` values. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignMergeValue(object, key, value) { + if ((value !== undefined && !eq(object[key], value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Assigns `value` to `key` of `object` if the existing value is not equivalent + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignValue(object, key, value) { + var objValue = object[key]; + if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Gets the index at which the `key` is found in `array` of key-value pairs. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} key The key to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function assocIndexOf(array, key) { + var length = array.length; + while (length--) { + if (eq(array[length][0], key)) { + return length; + } + } + return -1; + } + + /** + * Aggregates elements of `collection` on `accumulator` with keys transformed + * by `iteratee` and values set by `setter`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function baseAggregator(collection, setter, iteratee, accumulator) { + baseEach(collection, function(value, key, collection) { + setter(accumulator, value, iteratee(value), collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.assign` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssign(object, source) { + return object && copyObject(source, keys(source), object); + } + + /** + * The base implementation of `_.assignIn` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssignIn(object, source) { + return object && copyObject(source, keysIn(source), object); + } + + /** + * The base implementation of `assignValue` and `assignMergeValue` without + * value checks. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function baseAssignValue(object, key, value) { + if (key == '__proto__' && defineProperty) { + defineProperty(object, key, { + 'configurable': true, + 'enumerable': true, + 'value': value, + 'writable': true + }); + } else { + object[key] = value; + } + } + + /** + * The base implementation of `_.at` without support for individual paths. + * + * @private + * @param {Object} object The object to iterate over. + * @param {string[]} paths The property paths to pick. + * @returns {Array} Returns the picked elements. + */ + function baseAt(object, paths) { + var index = -1, + length = paths.length, + result = Array(length), + skip = object == null; + + while (++index < length) { + result[index] = skip ? undefined : get(object, paths[index]); + } + return result; + } + + /** + * The base implementation of `_.clamp` which doesn't coerce arguments. + * + * @private + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + */ + function baseClamp(number, lower, upper) { + if (number === number) { + if (upper !== undefined) { + number = number <= upper ? number : upper; + } + if (lower !== undefined) { + number = number >= lower ? number : lower; + } + } + return number; + } + + /** + * The base implementation of `_.clone` and `_.cloneDeep` which tracks + * traversed objects. + * + * @private + * @param {*} value The value to clone. + * @param {boolean} bitmask The bitmask flags. + * 1 - Deep clone + * 2 - Flatten inherited properties + * 4 - Clone symbols + * @param {Function} [customizer] The function to customize cloning. + * @param {string} [key] The key of `value`. + * @param {Object} [object] The parent object of `value`. + * @param {Object} [stack] Tracks traversed objects and their clone counterparts. + * @returns {*} Returns the cloned value. + */ + function baseClone(value, bitmask, customizer, key, object, stack) { + var result, + isDeep = bitmask & CLONE_DEEP_FLAG, + isFlat = bitmask & CLONE_FLAT_FLAG, + isFull = bitmask & CLONE_SYMBOLS_FLAG; + + if (customizer) { + result = object ? customizer(value, key, object, stack) : customizer(value); + } + if (result !== undefined) { + return result; + } + if (!isObject(value)) { + return value; + } + var isArr = isArray(value); + if (isArr) { + result = initCloneArray(value); + if (!isDeep) { + return copyArray(value, result); + } + } else { + var tag = getTag(value), + isFunc = tag == funcTag || tag == genTag; + + if (isBuffer(value)) { + return cloneBuffer(value, isDeep); + } + if (tag == objectTag || tag == argsTag || (isFunc && !object)) { + result = (isFlat || isFunc) ? {} : initCloneObject(value); + if (!isDeep) { + return isFlat + ? copySymbolsIn(value, baseAssignIn(result, value)) + : copySymbols(value, baseAssign(result, value)); + } + } else { + if (!cloneableTags[tag]) { + return object ? value : {}; + } + result = initCloneByTag(value, tag, baseClone, isDeep); + } + } + // Check for circular references and return its corresponding clone. + stack || (stack = new Stack); + var stacked = stack.get(value); + if (stacked) { + return stacked; + } + stack.set(value, result); + + var keysFunc = isFull + ? (isFlat ? getAllKeysIn : getAllKeys) + : (isFlat ? keysIn : keys); + + var props = isArr ? undefined : keysFunc(value); + arrayEach(props || value, function(subValue, key) { + if (props) { + key = subValue; + subValue = value[key]; + } + // Recursively populate clone (susceptible to call stack limits). + assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + return result; + } + + /** + * The base implementation of `_.conforms` which doesn't clone `source`. + * + * @private + * @param {Object} source The object of property predicates to conform to. + * @returns {Function} Returns the new spec function. + */ + function baseConforms(source) { + var props = keys(source); + return function(object) { + return baseConformsTo(object, source, props); + }; + } + + /** + * The base implementation of `_.conformsTo` which accepts `props` to check. + * + * @private + * @param {Object} object The object to inspect. + * @param {Object} source The object of property predicates to conform to. + * @returns {boolean} Returns `true` if `object` conforms, else `false`. + */ + function baseConformsTo(object, source, props) { + var length = props.length; + if (object == null) { + return !length; + } + object = Object(object); + while (length--) { + var key = props[length], + predicate = source[key], + value = object[key]; + + if ((value === undefined && !(key in object)) || !predicate(value)) { + return false; + } + } + return true; + } + + /** + * The base implementation of `_.delay` and `_.defer` which accepts `args` + * to provide to `func`. + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {Array} args The arguments to provide to `func`. + * @returns {number|Object} Returns the timer id or timeout object. + */ + function baseDelay(func, wait, args) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return setTimeout(function() { func.apply(undefined, args); }, wait); + } + + /** + * The base implementation of methods like `_.difference` without support + * for excluding multiple arrays or iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Array} values The values to exclude. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + */ + function baseDifference(array, values, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + isCommon = true, + length = array.length, + result = [], + valuesLength = values.length; + + if (!length) { + return result; + } + if (iteratee) { + values = arrayMap(values, baseUnary(iteratee)); + } + if (comparator) { + includes = arrayIncludesWith; + isCommon = false; + } + else if (values.length >= LARGE_ARRAY_SIZE) { + includes = cacheHas; + isCommon = false; + values = new SetCache(values); + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee == null ? value : iteratee(value); + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var valuesIndex = valuesLength; + while (valuesIndex--) { + if (values[valuesIndex] === computed) { + continue outer; + } + } + result.push(value); + } + else if (!includes(values, computed, comparator)) { + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.forEach` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + */ + var baseEach = createBaseEach(baseForOwn); + + /** + * The base implementation of `_.forEachRight` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + */ + var baseEachRight = createBaseEach(baseForOwnRight, true); + + /** + * The base implementation of `_.every` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false` + */ + function baseEvery(collection, predicate) { + var result = true; + baseEach(collection, function(value, index, collection) { + result = !!predicate(value, index, collection); + return result; + }); + return result; + } + + /** + * The base implementation of methods like `_.max` and `_.min` which accepts a + * `comparator` to determine the extremum value. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The iteratee invoked per iteration. + * @param {Function} comparator The comparator used to compare values. + * @returns {*} Returns the extremum value. + */ + function baseExtremum(array, iteratee, comparator) { + var index = -1, + length = array.length; + + while (++index < length) { + var value = array[index], + current = iteratee(value); + + if (current != null && (computed === undefined + ? (current === current && !isSymbol(current)) + : comparator(current, computed) + )) { + var computed = current, + result = value; + } + } + return result; + } + + /** + * The base implementation of `_.fill` without an iteratee call guard. + * + * @private + * @param {Array} array The array to fill. + * @param {*} value The value to fill `array` with. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns `array`. + */ + function baseFill(array, value, start, end) { + var length = array.length; + + start = toInteger(start); + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = (end === undefined || end > length) ? length : toInteger(end); + if (end < 0) { + end += length; + } + end = start > end ? 0 : toLength(end); + while (start < end) { + array[start++] = value; + } + return array; + } + + /** + * The base implementation of `_.filter` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function baseFilter(collection, predicate) { + var result = []; + baseEach(collection, function(value, index, collection) { + if (predicate(value, index, collection)) { + result.push(value); + } + }); + return result; + } + + /** + * The base implementation of `_.flatten` with support for restricting flattening. + * + * @private + * @param {Array} array The array to flatten. + * @param {number} depth The maximum recursion depth. + * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. + * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. + * @param {Array} [result=[]] The initial result value. + * @returns {Array} Returns the new flattened array. + */ + function baseFlatten(array, depth, predicate, isStrict, result) { + var index = -1, + length = array.length; + + predicate || (predicate = isFlattenable); + result || (result = []); + + while (++index < length) { + var value = array[index]; + if (depth > 0 && predicate(value)) { + if (depth > 1) { + // Recursively flatten arrays (susceptible to call stack limits). + baseFlatten(value, depth - 1, predicate, isStrict, result); + } else { + arrayPush(result, value); + } + } else if (!isStrict) { + result[result.length] = value; + } + } + return result; + } + + /** + * The base implementation of `baseForOwn` which iterates over `object` + * properties returned by `keysFunc` and invokes `iteratee` for each property. + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + /** + * This function is like `baseFor` except that it iterates over properties + * in the opposite order. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseForRight = createBaseFor(true); + + /** + * The base implementation of `_.forOwn` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwn(object, iteratee) { + return object && baseFor(object, iteratee, keys); + } + + /** + * The base implementation of `_.forOwnRight` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwnRight(object, iteratee) { + return object && baseForRight(object, iteratee, keys); + } + + /** + * The base implementation of `_.functions` which creates an array of + * `object` function property names filtered from `props`. + * + * @private + * @param {Object} object The object to inspect. + * @param {Array} props The property names to filter. + * @returns {Array} Returns the function names. + */ + function baseFunctions(object, props) { + return arrayFilter(props, function(key) { + return isFunction(object[key]); + }); + } + + /** + * The base implementation of `_.get` without support for default values. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @returns {*} Returns the resolved value. + */ + function baseGet(object, path) { + path = castPath(path, object); + + var index = 0, + length = path.length; + + while (object != null && index < length) { + object = object[toKey(path[index++])]; + } + return (index && index == length) ? object : undefined; + } + + /** + * The base implementation of `getAllKeys` and `getAllKeysIn` which uses + * `keysFunc` and `symbolsFunc` to get the enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Function} keysFunc The function to get the keys of `object`. + * @param {Function} symbolsFunc The function to get the symbols of `object`. + * @returns {Array} Returns the array of property names and symbols. + */ + function baseGetAllKeys(object, keysFunc, symbolsFunc) { + var result = keysFunc(object); + return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); + } + + /** + * The base implementation of `getTag` without fallbacks for buggy environments. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + function baseGetTag(value) { + if (value == null) { + return value === undefined ? undefinedTag : nullTag; + } + return (symToStringTag && symToStringTag in Object(value)) + ? getRawTag(value) + : objectToString(value); + } + + /** + * The base implementation of `_.gt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, + * else `false`. + */ + function baseGt(value, other) { + return value > other; + } + + /** + * The base implementation of `_.has` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHas(object, key) { + return object != null && hasOwnProperty.call(object, key); + } + + /** + * The base implementation of `_.hasIn` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHasIn(object, key) { + return object != null && key in Object(object); + } + + /** + * The base implementation of `_.inRange` which doesn't coerce arguments. + * + * @private + * @param {number} number The number to check. + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @returns {boolean} Returns `true` if `number` is in the range, else `false`. + */ + function baseInRange(number, start, end) { + return number >= nativeMin(start, end) && number < nativeMax(start, end); + } + + /** + * The base implementation of methods like `_.intersection`, without support + * for iteratee shorthands, that accepts an array of arrays to inspect. + * + * @private + * @param {Array} arrays The arrays to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of shared values. + */ + function baseIntersection(arrays, iteratee, comparator) { + var includes = comparator ? arrayIncludesWith : arrayIncludes, + length = arrays[0].length, + othLength = arrays.length, + othIndex = othLength, + caches = Array(othLength), + maxLength = Infinity, + result = []; + + while (othIndex--) { + var array = arrays[othIndex]; + if (othIndex && iteratee) { + array = arrayMap(array, baseUnary(iteratee)); + } + maxLength = nativeMin(array.length, maxLength); + caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) + ? new SetCache(othIndex && array) + : undefined; + } + array = arrays[0]; + + var index = -1, + seen = caches[0]; + + outer: + while (++index < length && result.length < maxLength) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (!(seen + ? cacheHas(seen, computed) + : includes(result, computed, comparator) + )) { + othIndex = othLength; + while (--othIndex) { + var cache = caches[othIndex]; + if (!(cache + ? cacheHas(cache, computed) + : includes(arrays[othIndex], computed, comparator)) + ) { + continue outer; + } + } + if (seen) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.invert` and `_.invertBy` which inverts + * `object` with values transformed by `iteratee` and set by `setter`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform values. + * @param {Object} accumulator The initial inverted object. + * @returns {Function} Returns `accumulator`. + */ + function baseInverter(object, setter, iteratee, accumulator) { + baseForOwn(object, function(value, key, object) { + setter(accumulator, iteratee(value), key, object); + }); + return accumulator; + } + + /** + * The base implementation of `_.invoke` without support for individual + * method arguments. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {Array} args The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + */ + function baseInvoke(object, path, args) { + path = castPath(path, object); + object = parent(object, path); + var func = object == null ? object : object[toKey(last(path))]; + return func == null ? undefined : apply(func, object, args); + } + + /** + * The base implementation of `_.isArguments`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + */ + function baseIsArguments(value) { + return isObjectLike(value) && baseGetTag(value) == argsTag; + } + + /** + * The base implementation of `_.isArrayBuffer` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. + */ + function baseIsArrayBuffer(value) { + return isObjectLike(value) && baseGetTag(value) == arrayBufferTag; + } + + /** + * The base implementation of `_.isDate` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + */ + function baseIsDate(value) { + return isObjectLike(value) && baseGetTag(value) == dateTag; + } + + /** + * The base implementation of `_.isEqual` which supports partial comparisons + * and tracks traversed objects. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {boolean} bitmask The bitmask flags. + * 1 - Unordered comparison + * 2 - Partial comparison + * @param {Function} [customizer] The function to customize comparisons. + * @param {Object} [stack] Tracks traversed `value` and `other` objects. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + */ + function baseIsEqual(value, other, bitmask, customizer, stack) { + if (value === other) { + return true; + } + if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { + return value !== value && other !== other; + } + return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); + } + + /** + * A specialized version of `baseIsEqual` for arrays and objects which performs + * deep comparisons and tracks traversed objects enabling objects with circular + * references to be compared. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} [stack] Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { + var objIsArr = isArray(object), + othIsArr = isArray(other), + objTag = objIsArr ? arrayTag : getTag(object), + othTag = othIsArr ? arrayTag : getTag(other); + + objTag = objTag == argsTag ? objectTag : objTag; + othTag = othTag == argsTag ? objectTag : othTag; + + var objIsObj = objTag == objectTag, + othIsObj = othTag == objectTag, + isSameTag = objTag == othTag; + + if (isSameTag && isBuffer(object)) { + if (!isBuffer(other)) { + return false; + } + objIsArr = true; + objIsObj = false; + } + if (isSameTag && !objIsObj) { + stack || (stack = new Stack); + return (objIsArr || isTypedArray(object)) + ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) + : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); + } + if (!(bitmask & COMPARE_PARTIAL_FLAG)) { + var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), + othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); + + if (objIsWrapped || othIsWrapped) { + var objUnwrapped = objIsWrapped ? object.value() : object, + othUnwrapped = othIsWrapped ? other.value() : other; + + stack || (stack = new Stack); + return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); + } + } + if (!isSameTag) { + return false; + } + stack || (stack = new Stack); + return equalObjects(object, other, bitmask, customizer, equalFunc, stack); + } + + /** + * The base implementation of `_.isMap` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + */ + function baseIsMap(value) { + return isObjectLike(value) && getTag(value) == mapTag; + } + + /** + * The base implementation of `_.isMatch` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Array} matchData The property names, values, and compare flags to match. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + */ + function baseIsMatch(object, source, matchData, customizer) { + var index = matchData.length, + length = index, + noCustomizer = !customizer; + + if (object == null) { + return !length; + } + object = Object(object); + while (index--) { + var data = matchData[index]; + if ((noCustomizer && data[2]) + ? data[1] !== object[data[0]] + : !(data[0] in object) + ) { + return false; + } + } + while (++index < length) { + data = matchData[index]; + var key = data[0], + objValue = object[key], + srcValue = data[1]; + + if (noCustomizer && data[2]) { + if (objValue === undefined && !(key in object)) { + return false; + } + } else { + var stack = new Stack; + if (customizer) { + var result = customizer(objValue, srcValue, key, object, source, stack); + } + if (!(result === undefined + ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) + : result + )) { + return false; + } + } + } + return true; + } + + /** + * The base implementation of `_.isNative` without bad shim checks. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + */ + function baseIsNative(value) { + if (!isObject(value) || isMasked(value)) { + return false; + } + var pattern = isFunction(value) ? reIsNative : reIsHostCtor; + return pattern.test(toSource(value)); + } + + /** + * The base implementation of `_.isRegExp` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + */ + function baseIsRegExp(value) { + return isObjectLike(value) && baseGetTag(value) == regexpTag; + } + + /** + * The base implementation of `_.isSet` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + */ + function baseIsSet(value) { + return isObjectLike(value) && getTag(value) == setTag; + } + + /** + * The base implementation of `_.isTypedArray` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + */ + function baseIsTypedArray(value) { + return isObjectLike(value) && + isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; + } + + /** + * The base implementation of `_.iteratee`. + * + * @private + * @param {*} [value=_.identity] The value to convert to an iteratee. + * @returns {Function} Returns the iteratee. + */ + function baseIteratee(value) { + // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. + // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. + if (typeof value == 'function') { + return value; + } + if (value == null) { + return identity; + } + if (typeof value == 'object') { + return isArray(value) + ? baseMatchesProperty(value[0], value[1]) + : baseMatches(value); + } + return property(value); + } + + /** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeysIn(object) { + if (!isObject(object)) { + return nativeKeysIn(object); + } + var isProto = isPrototype(object), + result = []; + + for (var key in object) { + if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.lt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, + * else `false`. + */ + function baseLt(value, other) { + return value < other; + } + + /** + * The base implementation of `_.map` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function baseMap(collection, iteratee) { + var index = -1, + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value, key, collection) { + result[++index] = iteratee(value, key, collection); + }); + return result; + } + + /** + * The base implementation of `_.matches` which doesn't clone `source`. + * + * @private + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatches(source) { + var matchData = getMatchData(source); + if (matchData.length == 1 && matchData[0][2]) { + return matchesStrictComparable(matchData[0][0], matchData[0][1]); + } + return function(object) { + return object === source || baseIsMatch(object, source, matchData); + }; + } + + /** + * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. + * + * @private + * @param {string} path The path of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatchesProperty(path, srcValue) { + if (isKey(path) && isStrictComparable(srcValue)) { + return matchesStrictComparable(toKey(path), srcValue); + } + return function(object) { + var objValue = get(object, path); + return (objValue === undefined && objValue === srcValue) + ? hasIn(object, path) + : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); + }; + } + + /** + * The base implementation of `_.merge` without support for multiple sources. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {number} srcIndex The index of `source`. + * @param {Function} [customizer] The function to customize merged values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMerge(object, source, srcIndex, customizer, stack) { + if (object === source) { + return; + } + baseFor(source, function(srcValue, key) { + if (isObject(srcValue)) { + stack || (stack = new Stack); + baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); + } + else { + var newValue = customizer + ? customizer(object[key], srcValue, (key + ''), object, source, stack) + : undefined; + + if (newValue === undefined) { + newValue = srcValue; + } + assignMergeValue(object, key, newValue); + } + }, keysIn); + } + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {number} srcIndex The index of `source`. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize assigned values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { + var objValue = object[key], + srcValue = source[key], + stacked = stack.get(srcValue); + + if (stacked) { + assignMergeValue(object, key, stacked); + return; + } + var newValue = customizer + ? customizer(objValue, srcValue, (key + ''), object, source, stack) + : undefined; + + var isCommon = newValue === undefined; + + if (isCommon) { + var isArr = isArray(srcValue), + isBuff = !isArr && isBuffer(srcValue), + isTyped = !isArr && !isBuff && isTypedArray(srcValue); + + newValue = srcValue; + if (isArr || isBuff || isTyped) { + if (isArray(objValue)) { + newValue = objValue; + } + else if (isArrayLikeObject(objValue)) { + newValue = copyArray(objValue); + } + else if (isBuff) { + isCommon = false; + newValue = cloneBuffer(srcValue, true); + } + else if (isTyped) { + isCommon = false; + newValue = cloneTypedArray(srcValue, true); + } + else { + newValue = []; + } + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + newValue = objValue; + if (isArguments(objValue)) { + newValue = toPlainObject(objValue); + } + else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { + newValue = initCloneObject(srcValue); + } + } + else { + isCommon = false; + } + } + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, newValue); + mergeFunc(newValue, srcValue, srcIndex, customizer, stack); + stack['delete'](srcValue); + } + assignMergeValue(object, key, newValue); + } + + /** + * The base implementation of `_.nth` which doesn't coerce arguments. + * + * @private + * @param {Array} array The array to query. + * @param {number} n The index of the element to return. + * @returns {*} Returns the nth element of `array`. + */ + function baseNth(array, n) { + var length = array.length; + if (!length) { + return; + } + n += n < 0 ? length : 0; + return isIndex(n, length) ? array[n] : undefined; + } + + /** + * The base implementation of `_.orderBy` without param guards. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. + * @param {string[]} orders The sort orders of `iteratees`. + * @returns {Array} Returns the new sorted array. + */ + function baseOrderBy(collection, iteratees, orders) { + var index = -1; + iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(getIteratee())); + + var result = baseMap(collection, function(value, key, collection) { + var criteria = arrayMap(iteratees, function(iteratee) { + return iteratee(value); + }); + return { 'criteria': criteria, 'index': ++index, 'value': value }; + }); + + return baseSortBy(result, function(object, other) { + return compareMultiple(object, other, orders); + }); + } + + /** + * The base implementation of `_.pick` without support for individual + * property identifiers. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @returns {Object} Returns the new object. + */ + function basePick(object, paths) { + return basePickBy(object, paths, function(value, path) { + return hasIn(object, path); + }); + } + + /** + * The base implementation of `_.pickBy` without support for iteratee shorthands. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @param {Function} predicate The function invoked per property. + * @returns {Object} Returns the new object. + */ + function basePickBy(object, paths, predicate) { + var index = -1, + length = paths.length, + result = {}; + + while (++index < length) { + var path = paths[index], + value = baseGet(object, path); + + if (predicate(value, path)) { + baseSet(result, castPath(path, object), value); + } + } + return result; + } + + /** + * A specialized version of `baseProperty` which supports deep paths. + * + * @private + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyDeep(path) { + return function(object) { + return baseGet(object, path); + }; + } + + /** + * The base implementation of `_.pullAllBy` without support for iteratee + * shorthands. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to remove. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns `array`. + */ + function basePullAll(array, values, iteratee, comparator) { + var indexOf = comparator ? baseIndexOfWith : baseIndexOf, + index = -1, + length = values.length, + seen = array; + + if (array === values) { + values = copyArray(values); + } + if (iteratee) { + seen = arrayMap(array, baseUnary(iteratee)); + } + while (++index < length) { + var fromIndex = 0, + value = values[index], + computed = iteratee ? iteratee(value) : value; + + while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) { + if (seen !== array) { + splice.call(seen, fromIndex, 1); + } + splice.call(array, fromIndex, 1); + } + } + return array; + } + + /** + * The base implementation of `_.pullAt` without support for individual + * indexes or capturing the removed elements. + * + * @private + * @param {Array} array The array to modify. + * @param {number[]} indexes The indexes of elements to remove. + * @returns {Array} Returns `array`. + */ + function basePullAt(array, indexes) { + var length = array ? indexes.length : 0, + lastIndex = length - 1; + + while (length--) { + var index = indexes[length]; + if (length == lastIndex || index !== previous) { + var previous = index; + if (isIndex(index)) { + splice.call(array, index, 1); + } else { + baseUnset(array, index); + } + } + } + return array; + } + + /** + * The base implementation of `_.random` without support for returning + * floating-point numbers. + * + * @private + * @param {number} lower The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the random number. + */ + function baseRandom(lower, upper) { + return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); + } + + /** + * The base implementation of `_.range` and `_.rangeRight` which doesn't + * coerce arguments. + * + * @private + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @param {number} step The value to increment or decrement by. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the range of numbers. + */ + function baseRange(start, end, step, fromRight) { + var index = -1, + length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), + result = Array(length); + + while (length--) { + result[fromRight ? length : ++index] = start; + start += step; + } + return result; + } + + /** + * The base implementation of `_.repeat` which doesn't coerce arguments. + * + * @private + * @param {string} string The string to repeat. + * @param {number} n The number of times to repeat the string. + * @returns {string} Returns the repeated string. + */ + function baseRepeat(string, n) { + var result = ''; + if (!string || n < 1 || n > MAX_SAFE_INTEGER) { + return result; + } + // Leverage the exponentiation by squaring algorithm for a faster repeat. + // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details. + do { + if (n % 2) { + result += string; + } + n = nativeFloor(n / 2); + if (n) { + string += string; + } + } while (n); + + return result; + } + + /** + * The base implementation of `_.rest` which doesn't validate or coerce arguments. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + */ + function baseRest(func, start) { + return setToString(overRest(func, start, identity), func + ''); + } + + /** + * The base implementation of `_.sample`. + * + * @private + * @param {Array|Object} collection The collection to sample. + * @returns {*} Returns the random element. + */ + function baseSample(collection) { + return arraySample(values(collection)); + } + + /** + * The base implementation of `_.sampleSize` without param guards. + * + * @private + * @param {Array|Object} collection The collection to sample. + * @param {number} n The number of elements to sample. + * @returns {Array} Returns the random elements. + */ + function baseSampleSize(collection, n) { + var array = values(collection); + return shuffleSelf(array, baseClamp(n, 0, array.length)); + } + + /** + * The base implementation of `_.set`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @param {Function} [customizer] The function to customize path creation. + * @returns {Object} Returns `object`. + */ + function baseSet(object, path, value, customizer) { + if (!isObject(object)) { + return object; + } + path = castPath(path, object); + + var index = -1, + length = path.length, + lastIndex = length - 1, + nested = object; + + while (nested != null && ++index < length) { + var key = toKey(path[index]), + newValue = value; + + if (index != lastIndex) { + var objValue = nested[key]; + newValue = customizer ? customizer(objValue, key, nested) : undefined; + if (newValue === undefined) { + newValue = isObject(objValue) + ? objValue + : (isIndex(path[index + 1]) ? [] : {}); + } + } + assignValue(nested, key, newValue); + nested = nested[key]; + } + return object; + } + + /** + * The base implementation of `setData` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var baseSetData = !metaMap ? identity : function(func, data) { + metaMap.set(func, data); + return func; + }; + + /** + * The base implementation of `setToString` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var baseSetToString = !defineProperty ? identity : function(func, string) { + return defineProperty(func, 'toString', { + 'configurable': true, + 'enumerable': false, + 'value': constant(string), + 'writable': true + }); + }; + + /** + * The base implementation of `_.shuffle`. + * + * @private + * @param {Array|Object} collection The collection to shuffle. + * @returns {Array} Returns the new shuffled array. + */ + function baseShuffle(collection) { + return shuffleSelf(values(collection)); + } + + /** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = end > length ? length : end; + if (end < 0) { + end += length; + } + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; + + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; + } + return result; + } + + /** + * The base implementation of `_.some` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function baseSome(collection, predicate) { + var result; + + baseEach(collection, function(value, index, collection) { + result = predicate(value, index, collection); + return !result; + }); + return !!result; + } + + /** + * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which + * performs a binary search of `array` to determine the index at which `value` + * should be inserted into `array` in order to maintain its sort order. + * + * @private + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @param {boolean} [retHighest] Specify returning the highest qualified index. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + */ + function baseSortedIndex(array, value, retHighest) { + var low = 0, + high = array == null ? low : array.length; + + if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) { + while (low < high) { + var mid = (low + high) >>> 1, + computed = array[mid]; + + if (computed !== null && !isSymbol(computed) && + (retHighest ? (computed <= value) : (computed < value))) { + low = mid + 1; + } else { + high = mid; + } + } + return high; + } + return baseSortedIndexBy(array, value, identity, retHighest); + } + + /** + * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy` + * which invokes `iteratee` for `value` and each element of `array` to compute + * their sort ranking. The iteratee is invoked with one argument; (value). + * + * @private + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @param {Function} iteratee The iteratee invoked per element. + * @param {boolean} [retHighest] Specify returning the highest qualified index. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + */ + function baseSortedIndexBy(array, value, iteratee, retHighest) { + value = iteratee(value); + + var low = 0, + high = array == null ? 0 : array.length, + valIsNaN = value !== value, + valIsNull = value === null, + valIsSymbol = isSymbol(value), + valIsUndefined = value === undefined; + + while (low < high) { + var mid = nativeFloor((low + high) / 2), + computed = iteratee(array[mid]), + othIsDefined = computed !== undefined, + othIsNull = computed === null, + othIsReflexive = computed === computed, + othIsSymbol = isSymbol(computed); + + if (valIsNaN) { + var setLow = retHighest || othIsReflexive; + } else if (valIsUndefined) { + setLow = othIsReflexive && (retHighest || othIsDefined); + } else if (valIsNull) { + setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull); + } else if (valIsSymbol) { + setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol); + } else if (othIsNull || othIsSymbol) { + setLow = false; + } else { + setLow = retHighest ? (computed <= value) : (computed < value); + } + if (setLow) { + low = mid + 1; + } else { + high = mid; + } + } + return nativeMin(high, MAX_ARRAY_INDEX); + } + + /** + * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + */ + function baseSortedUniq(array, iteratee) { + var index = -1, + length = array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + if (!index || !eq(computed, seen)) { + var seen = computed; + result[resIndex++] = value === 0 ? 0 : value; + } + } + return result; + } + + /** + * The base implementation of `_.toNumber` which doesn't ensure correct + * conversions of binary, hexadecimal, or octal string values. + * + * @private + * @param {*} value The value to process. + * @returns {number} Returns the number. + */ + function baseToNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + return +value; + } + + /** + * The base implementation of `_.toString` which doesn't convert nullish + * values to empty strings. + * + * @private + * @param {*} value The value to process. + * @returns {string} Returns the string. + */ + function baseToString(value) { + // Exit early for strings to avoid a performance hit in some environments. + if (typeof value == 'string') { + return value; + } + if (isArray(value)) { + // Recursively convert values (susceptible to call stack limits). + return arrayMap(value, baseToString) + ''; + } + if (isSymbol(value)) { + return symbolToString ? symbolToString.call(value) : ''; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * The base implementation of `_.uniqBy` without support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new duplicate free array. + */ + function baseUniq(array, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + length = array.length, + isCommon = true, + result = [], + seen = result; + + if (comparator) { + isCommon = false; + includes = arrayIncludesWith; + } + else if (length >= LARGE_ARRAY_SIZE) { + var set = iteratee ? null : createSet(array); + if (set) { + return setToArray(set); + } + isCommon = false; + includes = cacheHas; + seen = new SetCache; + } + else { + seen = iteratee ? [] : result; + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var seenIndex = seen.length; + while (seenIndex--) { + if (seen[seenIndex] === computed) { + continue outer; + } + } + if (iteratee) { + seen.push(computed); + } + result.push(value); + } + else if (!includes(seen, computed, comparator)) { + if (seen !== result) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.unset`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The property path to unset. + * @returns {boolean} Returns `true` if the property is deleted, else `false`. + */ + function baseUnset(object, path) { + path = castPath(path, object); + object = parent(object, path); + return object == null || delete object[toKey(last(path))]; + } + + /** + * The base implementation of `_.update`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to update. + * @param {Function} updater The function to produce the updated value. + * @param {Function} [customizer] The function to customize path creation. + * @returns {Object} Returns `object`. + */ + function baseUpdate(object, path, updater, customizer) { + return baseSet(object, path, updater(baseGet(object, path)), customizer); + } + + /** + * The base implementation of methods like `_.dropWhile` and `_.takeWhile` + * without support for iteratee shorthands. + * + * @private + * @param {Array} array The array to query. + * @param {Function} predicate The function invoked per iteration. + * @param {boolean} [isDrop] Specify dropping elements instead of taking them. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the slice of `array`. + */ + function baseWhile(array, predicate, isDrop, fromRight) { + var length = array.length, + index = fromRight ? length : -1; + + while ((fromRight ? index-- : ++index < length) && + predicate(array[index], index, array)) {} + + return isDrop + ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length)) + : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index)); + } + + /** + * The base implementation of `wrapperValue` which returns the result of + * performing a sequence of actions on the unwrapped `value`, where each + * successive action is supplied the return value of the previous. + * + * @private + * @param {*} value The unwrapped value. + * @param {Array} actions Actions to perform to resolve the unwrapped value. + * @returns {*} Returns the resolved value. + */ + function baseWrapperValue(value, actions) { + var result = value; + if (result instanceof LazyWrapper) { + result = result.value(); + } + return arrayReduce(actions, function(result, action) { + return action.func.apply(action.thisArg, arrayPush([result], action.args)); + }, result); + } + + /** + * The base implementation of methods like `_.xor`, without support for + * iteratee shorthands, that accepts an array of arrays to inspect. + * + * @private + * @param {Array} arrays The arrays to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of values. + */ + function baseXor(arrays, iteratee, comparator) { + var length = arrays.length; + if (length < 2) { + return length ? baseUniq(arrays[0]) : []; + } + var index = -1, + result = Array(length); + + while (++index < length) { + var array = arrays[index], + othIndex = -1; + + while (++othIndex < length) { + if (othIndex != index) { + result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator); + } + } + } + return baseUniq(baseFlatten(result, 1), iteratee, comparator); + } + + /** + * This base implementation of `_.zipObject` which assigns values using `assignFunc`. + * + * @private + * @param {Array} props The property identifiers. + * @param {Array} values The property values. + * @param {Function} assignFunc The function to assign values. + * @returns {Object} Returns the new object. + */ + function baseZipObject(props, values, assignFunc) { + var index = -1, + length = props.length, + valsLength = values.length, + result = {}; + + while (++index < length) { + var value = index < valsLength ? values[index] : undefined; + assignFunc(result, props[index], value); + } + return result; + } + + /** + * Casts `value` to an empty array if it's not an array like object. + * + * @private + * @param {*} value The value to inspect. + * @returns {Array|Object} Returns the cast array-like object. + */ + function castArrayLikeObject(value) { + return isArrayLikeObject(value) ? value : []; + } + + /** + * Casts `value` to `identity` if it's not a function. + * + * @private + * @param {*} value The value to inspect. + * @returns {Function} Returns cast function. + */ + function castFunction(value) { + return typeof value == 'function' ? value : identity; + } + + /** + * Casts `value` to a path array if it's not one. + * + * @private + * @param {*} value The value to inspect. + * @param {Object} [object] The object to query keys on. + * @returns {Array} Returns the cast property path array. + */ + function castPath(value, object) { + if (isArray(value)) { + return value; + } + return isKey(value, object) ? [value] : stringToPath(toString(value)); + } + + /** + * A `baseRest` alias which can be replaced with `identity` by module + * replacement plugins. + * + * @private + * @type {Function} + * @param {Function} func The function to apply a rest parameter to. + * @returns {Function} Returns the new function. + */ + var castRest = baseRest; + + /** + * Casts `array` to a slice if it's needed. + * + * @private + * @param {Array} array The array to inspect. + * @param {number} start The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the cast slice. + */ + function castSlice(array, start, end) { + var length = array.length; + end = end === undefined ? length : end; + return (!start && end >= length) ? array : baseSlice(array, start, end); + } + + /** + * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout). + * + * @private + * @param {number|Object} id The timer id or timeout object of the timer to clear. + */ + var clearTimeout = ctxClearTimeout || function(id) { + return root.clearTimeout(id); + }; + + /** + * Creates a clone of `buffer`. + * + * @private + * @param {Buffer} buffer The buffer to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Buffer} Returns the cloned buffer. + */ + function cloneBuffer(buffer, isDeep) { + if (isDeep) { + return buffer.slice(); + } + var length = buffer.length, + result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); + + buffer.copy(result); + return result; + } + + /** + * Creates a clone of `arrayBuffer`. + * + * @private + * @param {ArrayBuffer} arrayBuffer The array buffer to clone. + * @returns {ArrayBuffer} Returns the cloned array buffer. + */ + function cloneArrayBuffer(arrayBuffer) { + var result = new arrayBuffer.constructor(arrayBuffer.byteLength); + new Uint8Array(result).set(new Uint8Array(arrayBuffer)); + return result; + } + + /** + * Creates a clone of `dataView`. + * + * @private + * @param {Object} dataView The data view to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned data view. + */ + function cloneDataView(dataView, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; + return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); + } + + /** + * Creates a clone of `map`. + * + * @private + * @param {Object} map The map to clone. + * @param {Function} cloneFunc The function to clone values. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned map. + */ + function cloneMap(map, isDeep, cloneFunc) { + var array = isDeep ? cloneFunc(mapToArray(map), CLONE_DEEP_FLAG) : mapToArray(map); + return arrayReduce(array, addMapEntry, new map.constructor); + } + + /** + * Creates a clone of `regexp`. + * + * @private + * @param {Object} regexp The regexp to clone. + * @returns {Object} Returns the cloned regexp. + */ + function cloneRegExp(regexp) { + var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); + result.lastIndex = regexp.lastIndex; + return result; + } + + /** + * Creates a clone of `set`. + * + * @private + * @param {Object} set The set to clone. + * @param {Function} cloneFunc The function to clone values. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned set. + */ + function cloneSet(set, isDeep, cloneFunc) { + var array = isDeep ? cloneFunc(setToArray(set), CLONE_DEEP_FLAG) : setToArray(set); + return arrayReduce(array, addSetEntry, new set.constructor); + } + + /** + * Creates a clone of the `symbol` object. + * + * @private + * @param {Object} symbol The symbol object to clone. + * @returns {Object} Returns the cloned symbol object. + */ + function cloneSymbol(symbol) { + return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; + } + + /** + * Creates a clone of `typedArray`. + * + * @private + * @param {Object} typedArray The typed array to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned typed array. + */ + function cloneTypedArray(typedArray, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; + return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); + } + + /** + * Compares values to sort them in ascending order. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {number} Returns the sort order indicator for `value`. + */ + function compareAscending(value, other) { + if (value !== other) { + var valIsDefined = value !== undefined, + valIsNull = value === null, + valIsReflexive = value === value, + valIsSymbol = isSymbol(value); + + var othIsDefined = other !== undefined, + othIsNull = other === null, + othIsReflexive = other === other, + othIsSymbol = isSymbol(other); + + if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || + (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || + (valIsNull && othIsDefined && othIsReflexive) || + (!valIsDefined && othIsReflexive) || + !valIsReflexive) { + return 1; + } + if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || + (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || + (othIsNull && valIsDefined && valIsReflexive) || + (!othIsDefined && valIsReflexive) || + !othIsReflexive) { + return -1; + } + } + return 0; + } + + /** + * Used by `_.orderBy` to compare multiple properties of a value to another + * and stable sort them. + * + * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, + * specify an order of "desc" for descending or "asc" for ascending sort order + * of corresponding values. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {boolean[]|string[]} orders The order to sort by for each property. + * @returns {number} Returns the sort order indicator for `object`. + */ + function compareMultiple(object, other, orders) { + var index = -1, + objCriteria = object.criteria, + othCriteria = other.criteria, + length = objCriteria.length, + ordersLength = orders.length; + + while (++index < length) { + var result = compareAscending(objCriteria[index], othCriteria[index]); + if (result) { + if (index >= ordersLength) { + return result; + } + var order = orders[index]; + return result * (order == 'desc' ? -1 : 1); + } + } + // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications + // that causes it, under certain circumstances, to provide the same value for + // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 + // for more details. + // + // This also ensures a stable sort in V8 and other engines. + // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. + return object.index - other.index; + } + + /** + * Creates an array that is the composition of partially applied arguments, + * placeholders, and provided arguments into a single array of arguments. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to prepend to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgs(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersLength = holders.length, + leftIndex = -1, + leftLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(leftLength + rangeLength), + isUncurried = !isCurried; + + while (++leftIndex < leftLength) { + result[leftIndex] = partials[leftIndex]; + } + while (++argsIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[holders[argsIndex]] = args[argsIndex]; + } + } + while (rangeLength--) { + result[leftIndex++] = args[argsIndex++]; + } + return result; + } + + /** + * This function is like `composeArgs` except that the arguments composition + * is tailored for `_.partialRight`. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to append to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgsRight(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersIndex = -1, + holdersLength = holders.length, + rightIndex = -1, + rightLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(rangeLength + rightLength), + isUncurried = !isCurried; + + while (++argsIndex < rangeLength) { + result[argsIndex] = args[argsIndex]; + } + var offset = argsIndex; + while (++rightIndex < rightLength) { + result[offset + rightIndex] = partials[rightIndex]; + } + while (++holdersIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[offset + holders[holdersIndex]] = args[argsIndex++]; + } + } + return result; + } + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function copyArray(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property identifiers to copy. + * @param {Object} [object={}] The object to copy properties to. + * @param {Function} [customizer] The function to customize copied values. + * @returns {Object} Returns `object`. + */ + function copyObject(source, props, object, customizer) { + var isNew = !object; + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + + var newValue = customizer + ? customizer(object[key], source[key], key, object, source) + : undefined; + + if (newValue === undefined) { + newValue = source[key]; + } + if (isNew) { + baseAssignValue(object, key, newValue); + } else { + assignValue(object, key, newValue); + } + } + return object; + } + + /** + * Copies own symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbols(source, object) { + return copyObject(source, getSymbols(source), object); + } + + /** + * Copies own and inherited symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbolsIn(source, object) { + return copyObject(source, getSymbolsIn(source), object); + } + + /** + * Creates a function like `_.groupBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} [initializer] The accumulator object initializer. + * @returns {Function} Returns the new aggregator function. + */ + function createAggregator(setter, initializer) { + return function(collection, iteratee) { + var func = isArray(collection) ? arrayAggregator : baseAggregator, + accumulator = initializer ? initializer() : {}; + + return func(collection, setter, getIteratee(iteratee, 2), accumulator); + }; + } + + /** + * Creates a function like `_.assign`. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return baseRest(function(object, sources) { + var index = -1, + length = sources.length, + customizer = length > 1 ? sources[length - 1] : undefined, + guard = length > 2 ? sources[2] : undefined; + + customizer = (assigner.length > 3 && typeof customizer == 'function') + ? (length--, customizer) + : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + object = Object(object); + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, index, customizer); + } + } + return object; + }); + } + + /** + * Creates a `baseEach` or `baseEachRight` function. + * + * @private + * @param {Function} eachFunc The function to iterate over a collection. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseEach(eachFunc, fromRight) { + return function(collection, iteratee) { + if (collection == null) { + return collection; + } + if (!isArrayLike(collection)) { + return eachFunc(collection, iteratee); + } + var length = collection.length, + index = fromRight ? length : -1, + iterable = Object(collection); + + while ((fromRight ? index-- : ++index < length)) { + if (iteratee(iterable[index], index, iterable) === false) { + break; + } + } + return collection; + }; + } + + /** + * Creates a base function for methods like `_.forIn` and `_.forOwn`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var index = -1, + iterable = Object(object), + props = keysFunc(object), + length = props.length; + + while (length--) { + var key = props[fromRight ? length : ++index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the optional `this` + * binding of `thisArg`. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createBind(func, bitmask, thisArg) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return fn.apply(isBind ? thisArg : this, arguments); + } + return wrapper; + } + + /** + * Creates a function like `_.lowerFirst`. + * + * @private + * @param {string} methodName The name of the `String` case method to use. + * @returns {Function} Returns the new case function. + */ + function createCaseFirst(methodName) { + return function(string) { + string = toString(string); + + var strSymbols = hasUnicode(string) + ? stringToArray(string) + : undefined; + + var chr = strSymbols + ? strSymbols[0] + : string.charAt(0); + + var trailing = strSymbols + ? castSlice(strSymbols, 1).join('') + : string.slice(1); + + return chr[methodName]() + trailing; + }; + } + + /** + * Creates a function like `_.camelCase`. + * + * @private + * @param {Function} callback The function to combine each word. + * @returns {Function} Returns the new compounder function. + */ + function createCompounder(callback) { + return function(string) { + return arrayReduce(words(deburr(string).replace(reApos, '')), callback, ''); + }; + } + + /** + * Creates a function that produces an instance of `Ctor` regardless of + * whether it was invoked as part of a `new` expression or by `call` or `apply`. + * + * @private + * @param {Function} Ctor The constructor to wrap. + * @returns {Function} Returns the new wrapped function. + */ + function createCtor(Ctor) { + return function() { + // Use a `switch` statement to work with class constructors. See + // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist + // for more details. + var args = arguments; + switch (args.length) { + case 0: return new Ctor; + case 1: return new Ctor(args[0]); + case 2: return new Ctor(args[0], args[1]); + case 3: return new Ctor(args[0], args[1], args[2]); + case 4: return new Ctor(args[0], args[1], args[2], args[3]); + case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); + case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); + case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); + } + var thisBinding = baseCreate(Ctor.prototype), + result = Ctor.apply(thisBinding, args); + + // Mimic the constructor's `return` behavior. + // See https://es5.github.io/#x13.2.2 for more details. + return isObject(result) ? result : thisBinding; + }; + } + + /** + * Creates a function that wraps `func` to enable currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {number} arity The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createCurry(func, bitmask, arity) { + var Ctor = createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length, + placeholder = getHolder(wrapper); + + while (index--) { + args[index] = arguments[index]; + } + var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) + ? [] + : replaceHolders(args, placeholder); + + length -= holders.length; + if (length < arity) { + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, undefined, + args, holders, undefined, undefined, arity - length); + } + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return apply(fn, this, args); + } + return wrapper; + } + + /** + * Creates a `_.find` or `_.findLast` function. + * + * @private + * @param {Function} findIndexFunc The function to find the collection index. + * @returns {Function} Returns the new find function. + */ + function createFind(findIndexFunc) { + return function(collection, predicate, fromIndex) { + var iterable = Object(collection); + if (!isArrayLike(collection)) { + var iteratee = getIteratee(predicate, 3); + collection = keys(collection); + predicate = function(key) { return iteratee(iterable[key], key, iterable); }; + } + var index = findIndexFunc(collection, predicate, fromIndex); + return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; + }; + } + + /** + * Creates a `_.flow` or `_.flowRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new flow function. + */ + function createFlow(fromRight) { + return flatRest(function(funcs) { + var length = funcs.length, + index = length, + prereq = LodashWrapper.prototype.thru; + + if (fromRight) { + funcs.reverse(); + } + while (index--) { + var func = funcs[index]; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + if (prereq && !wrapper && getFuncName(func) == 'wrapper') { + var wrapper = new LodashWrapper([], true); + } + } + index = wrapper ? index : length; + while (++index < length) { + func = funcs[index]; + + var funcName = getFuncName(func), + data = funcName == 'wrapper' ? getData(func) : undefined; + + if (data && isLaziable(data[0]) && + data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) && + !data[4].length && data[9] == 1 + ) { + wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]); + } else { + wrapper = (func.length == 1 && isLaziable(func)) + ? wrapper[funcName]() + : wrapper.thru(func); + } + } + return function() { + var args = arguments, + value = args[0]; + + if (wrapper && args.length == 1 && isArray(value)) { + return wrapper.plant(value).value(); + } + var index = 0, + result = length ? funcs[index].apply(this, args) : value; + + while (++index < length) { + result = funcs[index].call(this, result); + } + return result; + }; + }); + } + + /** + * Creates a function that wraps `func` to invoke it with optional `this` + * binding of `thisArg`, partial application, and currying. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [partialsRight] The arguments to append to those provided + * to the new function. + * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { + var isAry = bitmask & WRAP_ARY_FLAG, + isBind = bitmask & WRAP_BIND_FLAG, + isBindKey = bitmask & WRAP_BIND_KEY_FLAG, + isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), + isFlip = bitmask & WRAP_FLIP_FLAG, + Ctor = isBindKey ? undefined : createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length; + + while (index--) { + args[index] = arguments[index]; + } + if (isCurried) { + var placeholder = getHolder(wrapper), + holdersCount = countHolders(args, placeholder); + } + if (partials) { + args = composeArgs(args, partials, holders, isCurried); + } + if (partialsRight) { + args = composeArgsRight(args, partialsRight, holdersRight, isCurried); + } + length -= holdersCount; + if (isCurried && length < arity) { + var newHolders = replaceHolders(args, placeholder); + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, thisArg, + args, newHolders, argPos, ary, arity - length + ); + } + var thisBinding = isBind ? thisArg : this, + fn = isBindKey ? thisBinding[func] : func; + + length = args.length; + if (argPos) { + args = reorder(args, argPos); + } else if (isFlip && length > 1) { + args.reverse(); + } + if (isAry && ary < length) { + args.length = ary; + } + if (this && this !== root && this instanceof wrapper) { + fn = Ctor || createCtor(fn); + } + return fn.apply(thisBinding, args); + } + return wrapper; + } + + /** + * Creates a function like `_.invertBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} toIteratee The function to resolve iteratees. + * @returns {Function} Returns the new inverter function. + */ + function createInverter(setter, toIteratee) { + return function(object, iteratee) { + return baseInverter(object, setter, toIteratee(iteratee), {}); + }; + } + + /** + * Creates a function that performs a mathematical operation on two values. + * + * @private + * @param {Function} operator The function to perform the operation. + * @param {number} [defaultValue] The value used for `undefined` arguments. + * @returns {Function} Returns the new mathematical operation function. + */ + function createMathOperation(operator, defaultValue) { + return function(value, other) { + var result; + if (value === undefined && other === undefined) { + return defaultValue; + } + if (value !== undefined) { + result = value; + } + if (other !== undefined) { + if (result === undefined) { + return other; + } + if (typeof value == 'string' || typeof other == 'string') { + value = baseToString(value); + other = baseToString(other); + } else { + value = baseToNumber(value); + other = baseToNumber(other); + } + result = operator(value, other); + } + return result; + }; + } + + /** + * Creates a function like `_.over`. + * + * @private + * @param {Function} arrayFunc The function to iterate over iteratees. + * @returns {Function} Returns the new over function. + */ + function createOver(arrayFunc) { + return flatRest(function(iteratees) { + iteratees = arrayMap(iteratees, baseUnary(getIteratee())); + return baseRest(function(args) { + var thisArg = this; + return arrayFunc(iteratees, function(iteratee) { + return apply(iteratee, thisArg, args); + }); + }); + }); + } + + /** + * Creates the padding for `string` based on `length`. The `chars` string + * is truncated if the number of characters exceeds `length`. + * + * @private + * @param {number} length The padding length. + * @param {string} [chars=' '] The string used as padding. + * @returns {string} Returns the padding for `string`. + */ + function createPadding(length, chars) { + chars = chars === undefined ? ' ' : baseToString(chars); + + var charsLength = chars.length; + if (charsLength < 2) { + return charsLength ? baseRepeat(chars, length) : chars; + } + var result = baseRepeat(chars, nativeCeil(length / stringSize(chars))); + return hasUnicode(chars) + ? castSlice(stringToArray(result), 0, length).join('') + : result.slice(0, length); + } + + /** + * Creates a function that wraps `func` to invoke it with the `this` binding + * of `thisArg` and `partials` prepended to the arguments it receives. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} partials The arguments to prepend to those provided to + * the new function. + * @returns {Function} Returns the new wrapped function. + */ + function createPartial(func, bitmask, thisArg, partials) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var argsIndex = -1, + argsLength = arguments.length, + leftIndex = -1, + leftLength = partials.length, + args = Array(leftLength + argsLength), + fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + + while (++leftIndex < leftLength) { + args[leftIndex] = partials[leftIndex]; + } + while (argsLength--) { + args[leftIndex++] = arguments[++argsIndex]; + } + return apply(fn, isBind ? thisArg : this, args); + } + return wrapper; + } + + /** + * Creates a `_.range` or `_.rangeRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new range function. + */ + function createRange(fromRight) { + return function(start, end, step) { + if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { + end = step = undefined; + } + // Ensure the sign of `-0` is preserved. + start = toFinite(start); + if (end === undefined) { + end = start; + start = 0; + } else { + end = toFinite(end); + } + step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); + return baseRange(start, end, step, fromRight); + }; + } + + /** + * Creates a function that performs a relational operation on two values. + * + * @private + * @param {Function} operator The function to perform the operation. + * @returns {Function} Returns the new relational operation function. + */ + function createRelationalOperation(operator) { + return function(value, other) { + if (!(typeof value == 'string' && typeof other == 'string')) { + value = toNumber(value); + other = toNumber(other); + } + return operator(value, other); + }; + } + + /** + * Creates a function that wraps `func` to continue currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {Function} wrapFunc The function to create the `func` wrapper. + * @param {*} placeholder The placeholder value. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { + var isCurry = bitmask & WRAP_CURRY_FLAG, + newHolders = isCurry ? holders : undefined, + newHoldersRight = isCurry ? undefined : holders, + newPartials = isCurry ? partials : undefined, + newPartialsRight = isCurry ? undefined : partials; + + bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); + bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); + + if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { + bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); + } + var newData = [ + func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, + newHoldersRight, argPos, ary, arity + ]; + + var result = wrapFunc.apply(undefined, newData); + if (isLaziable(func)) { + setData(result, newData); + } + result.placeholder = placeholder; + return setWrapToString(result, func, bitmask); + } + + /** + * Creates a function like `_.round`. + * + * @private + * @param {string} methodName The name of the `Math` method to use when rounding. + * @returns {Function} Returns the new round function. + */ + function createRound(methodName) { + var func = Math[methodName]; + return function(number, precision) { + number = toNumber(number); + precision = precision == null ? 0 : nativeMin(toInteger(precision), 292); + if (precision) { + // Shift with exponential notation to avoid floating-point issues. + // See [MDN](https://mdn.io/round#Examples) for more details. + var pair = (toString(number) + 'e').split('e'), + value = func(pair[0] + 'e' + (+pair[1] + precision)); + + pair = (toString(value) + 'e').split('e'); + return +(pair[0] + 'e' + (+pair[1] - precision)); + } + return func(number); + }; + } + + /** + * Creates a set object of `values`. + * + * @private + * @param {Array} values The values to add to the set. + * @returns {Object} Returns the new set. + */ + var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { + return new Set(values); + }; + + /** + * Creates a `_.toPairs` or `_.toPairsIn` function. + * + * @private + * @param {Function} keysFunc The function to get the keys of a given object. + * @returns {Function} Returns the new pairs function. + */ + function createToPairs(keysFunc) { + return function(object) { + var tag = getTag(object); + if (tag == mapTag) { + return mapToArray(object); + } + if (tag == setTag) { + return setToPairs(object); + } + return baseToPairs(object, keysFunc(object)); + }; + } + + /** + * Creates a function that either curries or invokes `func` with optional + * `this` binding and partially applied arguments. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. + * 1 - `_.bind` + * 2 - `_.bindKey` + * 4 - `_.curry` or `_.curryRight` of a bound function + * 8 - `_.curry` + * 16 - `_.curryRight` + * 32 - `_.partial` + * 64 - `_.partialRight` + * 128 - `_.rearg` + * 256 - `_.ary` + * 512 - `_.flip` + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to be partially applied. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { + var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; + if (!isBindKey && typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + var length = partials ? partials.length : 0; + if (!length) { + bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); + partials = holders = undefined; + } + ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); + arity = arity === undefined ? arity : toInteger(arity); + length -= holders ? holders.length : 0; + + if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { + var partialsRight = partials, + holdersRight = holders; + + partials = holders = undefined; + } + var data = isBindKey ? undefined : getData(func); + + var newData = [ + func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, + argPos, ary, arity + ]; + + if (data) { + mergeData(newData, data); + } + func = newData[0]; + bitmask = newData[1]; + thisArg = newData[2]; + partials = newData[3]; + holders = newData[4]; + arity = newData[9] = newData[9] === undefined + ? (isBindKey ? 0 : func.length) + : nativeMax(newData[9] - length, 0); + + if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { + bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); + } + if (!bitmask || bitmask == WRAP_BIND_FLAG) { + var result = createBind(func, bitmask, thisArg); + } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { + result = createCurry(func, bitmask, arity); + } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { + result = createPartial(func, bitmask, thisArg, partials); + } else { + result = createHybrid.apply(undefined, newData); + } + var setter = data ? baseSetData : setData; + return setWrapToString(setter(result, newData), func, bitmask); + } + + /** + * Used by `_.defaults` to customize its `_.assignIn` use to assign properties + * of source objects to the destination object for all destination properties + * that resolve to `undefined`. + * + * @private + * @param {*} objValue The destination value. + * @param {*} srcValue The source value. + * @param {string} key The key of the property to assign. + * @param {Object} object The parent object of `objValue`. + * @returns {*} Returns the value to assign. + */ + function customDefaultsAssignIn(objValue, srcValue, key, object) { + if (objValue === undefined || + (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) { + return srcValue; + } + return objValue; + } + + /** + * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source + * objects into destination objects that are passed thru. + * + * @private + * @param {*} objValue The destination value. + * @param {*} srcValue The source value. + * @param {string} key The key of the property to merge. + * @param {Object} object The parent object of `objValue`. + * @param {Object} source The parent object of `srcValue`. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + * @returns {*} Returns the value to assign. + */ + function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { + if (isObject(objValue) && isObject(srcValue)) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, objValue); + baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); + stack['delete'](srcValue); + } + return objValue; + } + + /** + * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain + * objects. + * + * @private + * @param {*} value The value to inspect. + * @param {string} key The key of the property to inspect. + * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. + */ + function customOmitClone(value) { + return isPlainObject(value) ? undefined : value; + } + + /** + * A specialized version of `baseIsEqualDeep` for arrays with support for + * partial deep comparisons. + * + * @private + * @param {Array} array The array to compare. + * @param {Array} other The other array to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `array` and `other` objects. + * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. + */ + function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + arrLength = array.length, + othLength = other.length; + + if (arrLength != othLength && !(isPartial && othLength > arrLength)) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(array); + if (stacked && stack.get(other)) { + return stacked == other; + } + var index = -1, + result = true, + seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; + + stack.set(array, other); + stack.set(other, array); + + // Ignore non-index properties. + while (++index < arrLength) { + var arrValue = array[index], + othValue = other[index]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, arrValue, index, other, array, stack) + : customizer(arrValue, othValue, index, array, other, stack); + } + if (compared !== undefined) { + if (compared) { + continue; + } + result = false; + break; + } + // Recursively compare arrays (susceptible to call stack limits). + if (seen) { + if (!arraySome(other, function(othValue, othIndex) { + if (!cacheHas(seen, othIndex) && + (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { + return seen.push(othIndex); + } + })) { + result = false; + break; + } + } else if (!( + arrValue === othValue || + equalFunc(arrValue, othValue, bitmask, customizer, stack) + )) { + result = false; + break; + } + } + stack['delete'](array); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseIsEqualDeep` for comparing objects of + * the same `toStringTag`. + * + * **Note:** This function only supports comparing values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {string} tag The `toStringTag` of the objects to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { + switch (tag) { + case dataViewTag: + if ((object.byteLength != other.byteLength) || + (object.byteOffset != other.byteOffset)) { + return false; + } + object = object.buffer; + other = other.buffer; + + case arrayBufferTag: + if ((object.byteLength != other.byteLength) || + !equalFunc(new Uint8Array(object), new Uint8Array(other))) { + return false; + } + return true; + + case boolTag: + case dateTag: + case numberTag: + // Coerce booleans to `1` or `0` and dates to milliseconds. + // Invalid dates are coerced to `NaN`. + return eq(+object, +other); + + case errorTag: + return object.name == other.name && object.message == other.message; + + case regexpTag: + case stringTag: + // Coerce regexes to strings and treat strings, primitives and objects, + // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring + // for more details. + return object == (other + ''); + + case mapTag: + var convert = mapToArray; + + case setTag: + var isPartial = bitmask & COMPARE_PARTIAL_FLAG; + convert || (convert = setToArray); + + if (object.size != other.size && !isPartial) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked) { + return stacked == other; + } + bitmask |= COMPARE_UNORDERED_FLAG; + + // Recursively compare objects (susceptible to call stack limits). + stack.set(object, other); + var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); + stack['delete'](object); + return result; + + case symbolTag: + if (symbolValueOf) { + return symbolValueOf.call(object) == symbolValueOf.call(other); + } + } + return false; + } + + /** + * A specialized version of `baseIsEqualDeep` for objects with support for + * partial deep comparisons. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + objProps = getAllKeys(object), + objLength = objProps.length, + othProps = getAllKeys(other), + othLength = othProps.length; + + if (objLength != othLength && !isPartial) { + return false; + } + var index = objLength; + while (index--) { + var key = objProps[index]; + if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { + return false; + } + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked && stack.get(other)) { + return stacked == other; + } + var result = true; + stack.set(object, other); + stack.set(other, object); + + var skipCtor = isPartial; + while (++index < objLength) { + key = objProps[index]; + var objValue = object[key], + othValue = other[key]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, objValue, key, other, object, stack) + : customizer(objValue, othValue, key, object, other, stack); + } + // Recursively compare objects (susceptible to call stack limits). + if (!(compared === undefined + ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) + : compared + )) { + result = false; + break; + } + skipCtor || (skipCtor = key == 'constructor'); + } + if (result && !skipCtor) { + var objCtor = object.constructor, + othCtor = other.constructor; + + // Non `Object` object instances with different constructors are not equal. + if (objCtor != othCtor && + ('constructor' in object && 'constructor' in other) && + !(typeof objCtor == 'function' && objCtor instanceof objCtor && + typeof othCtor == 'function' && othCtor instanceof othCtor)) { + result = false; + } + } + stack['delete'](object); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseRest` which flattens the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @returns {Function} Returns the new function. + */ + function flatRest(func) { + return setToString(overRest(func, undefined, flatten), func + ''); + } + + /** + * Creates an array of own enumerable property names and symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeys(object) { + return baseGetAllKeys(object, keys, getSymbols); + } + + /** + * Creates an array of own and inherited enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeysIn(object) { + return baseGetAllKeys(object, keysIn, getSymbolsIn); + } + + /** + * Gets metadata for `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {*} Returns the metadata for `func`. + */ + var getData = !metaMap ? noop : function(func) { + return metaMap.get(func); + }; + + /** + * Gets the name of `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {string} Returns the function name. + */ + function getFuncName(func) { + var result = (func.name + ''), + array = realNames[result], + length = hasOwnProperty.call(realNames, result) ? array.length : 0; + + while (length--) { + var data = array[length], + otherFunc = data.func; + if (otherFunc == null || otherFunc == func) { + return data.name; + } + } + return result; + } + + /** + * Gets the argument placeholder value for `func`. + * + * @private + * @param {Function} func The function to inspect. + * @returns {*} Returns the placeholder value. + */ + function getHolder(func) { + var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; + return object.placeholder; + } + + /** + * Gets the appropriate "iteratee" function. If `_.iteratee` is customized, + * this function returns the custom method, otherwise it returns `baseIteratee`. + * If arguments are provided, the chosen function is invoked with them and + * its result is returned. + * + * @private + * @param {*} [value] The value to convert to an iteratee. + * @param {number} [arity] The arity of the created iteratee. + * @returns {Function} Returns the chosen function or its result. + */ + function getIteratee() { + var result = lodash.iteratee || iteratee; + result = result === iteratee ? baseIteratee : result; + return arguments.length ? result(arguments[0], arguments[1]) : result; + } + + /** + * Gets the data for `map`. + * + * @private + * @param {Object} map The map to query. + * @param {string} key The reference key. + * @returns {*} Returns the map data. + */ + function getMapData(map, key) { + var data = map.__data__; + return isKeyable(key) + ? data[typeof key == 'string' ? 'string' : 'hash'] + : data.map; + } + + /** + * Gets the property names, values, and compare flags of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the match data of `object`. + */ + function getMatchData(object) { + var result = keys(object), + length = result.length; + + while (length--) { + var key = result[length], + value = object[key]; + + result[length] = [key, value, isStrictComparable(value)]; + } + return result; + } + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = getValue(object, key); + return baseIsNative(value) ? value : undefined; + } + + /** + * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the raw `toStringTag`. + */ + function getRawTag(value) { + var isOwn = hasOwnProperty.call(value, symToStringTag), + tag = value[symToStringTag]; + + try { + value[symToStringTag] = undefined; + var unmasked = true; + } catch (e) {} + + var result = nativeObjectToString.call(value); + if (unmasked) { + if (isOwn) { + value[symToStringTag] = tag; + } else { + delete value[symToStringTag]; + } + } + return result; + } + + /** + * Creates an array of the own enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbols = !nativeGetSymbols ? stubArray : function(object) { + if (object == null) { + return []; + } + object = Object(object); + return arrayFilter(nativeGetSymbols(object), function(symbol) { + return propertyIsEnumerable.call(object, symbol); + }); + }; + + /** + * Creates an array of the own and inherited enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { + var result = []; + while (object) { + arrayPush(result, getSymbols(object)); + object = getPrototype(object); + } + return result; + }; + + /** + * Gets the `toStringTag` of `value`. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + var getTag = baseGetTag; + + // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. + if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || + (Map && getTag(new Map) != mapTag) || + (Promise && getTag(Promise.resolve()) != promiseTag) || + (Set && getTag(new Set) != setTag) || + (WeakMap && getTag(new WeakMap) != weakMapTag)) { + getTag = function(value) { + var result = baseGetTag(value), + Ctor = result == objectTag ? value.constructor : undefined, + ctorString = Ctor ? toSource(Ctor) : ''; + + if (ctorString) { + switch (ctorString) { + case dataViewCtorString: return dataViewTag; + case mapCtorString: return mapTag; + case promiseCtorString: return promiseTag; + case setCtorString: return setTag; + case weakMapCtorString: return weakMapTag; + } + } + return result; + }; + } + + /** + * Gets the view, applying any `transforms` to the `start` and `end` positions. + * + * @private + * @param {number} start The start of the view. + * @param {number} end The end of the view. + * @param {Array} transforms The transformations to apply to the view. + * @returns {Object} Returns an object containing the `start` and `end` + * positions of the view. + */ + function getView(start, end, transforms) { + var index = -1, + length = transforms.length; + + while (++index < length) { + var data = transforms[index], + size = data.size; + + switch (data.type) { + case 'drop': start += size; break; + case 'dropRight': end -= size; break; + case 'take': end = nativeMin(end, start + size); break; + case 'takeRight': start = nativeMax(start, end - size); break; + } + } + return { 'start': start, 'end': end }; + } + + /** + * Extracts wrapper details from the `source` body comment. + * + * @private + * @param {string} source The source to inspect. + * @returns {Array} Returns the wrapper details. + */ + function getWrapDetails(source) { + var match = source.match(reWrapDetails); + return match ? match[1].split(reSplitDetails) : []; + } + + /** + * Checks if `path` exists on `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @param {Function} hasFunc The function to check properties. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + */ + function hasPath(object, path, hasFunc) { + path = castPath(path, object); + + var index = -1, + length = path.length, + result = false; + + while (++index < length) { + var key = toKey(path[index]); + if (!(result = object != null && hasFunc(object, key))) { + break; + } + object = object[key]; + } + if (result || ++index != length) { + return result; + } + length = object == null ? 0 : object.length; + return !!length && isLength(length) && isIndex(key, length) && + (isArray(object) || isArguments(object)); + } + + /** + * Initializes an array clone. + * + * @private + * @param {Array} array The array to clone. + * @returns {Array} Returns the initialized clone. + */ + function initCloneArray(array) { + var length = array.length, + result = array.constructor(length); + + // Add properties assigned by `RegExp#exec`. + if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { + result.index = array.index; + result.input = array.input; + } + return result; + } + + /** + * Initializes an object clone. + * + * @private + * @param {Object} object The object to clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneObject(object) { + return (typeof object.constructor == 'function' && !isPrototype(object)) + ? baseCreate(getPrototype(object)) + : {}; + } + + /** + * Initializes an object clone based on its `toStringTag`. + * + * **Note:** This function only supports cloning values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to clone. + * @param {string} tag The `toStringTag` of the object to clone. + * @param {Function} cloneFunc The function to clone values. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneByTag(object, tag, cloneFunc, isDeep) { + var Ctor = object.constructor; + switch (tag) { + case arrayBufferTag: + return cloneArrayBuffer(object); + + case boolTag: + case dateTag: + return new Ctor(+object); + + case dataViewTag: + return cloneDataView(object, isDeep); + + case float32Tag: case float64Tag: + case int8Tag: case int16Tag: case int32Tag: + case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: + return cloneTypedArray(object, isDeep); + + case mapTag: + return cloneMap(object, isDeep, cloneFunc); + + case numberTag: + case stringTag: + return new Ctor(object); + + case regexpTag: + return cloneRegExp(object); + + case setTag: + return cloneSet(object, isDeep, cloneFunc); + + case symbolTag: + return cloneSymbol(object); + } + } + + /** + * Inserts wrapper `details` in a comment at the top of the `source` body. + * + * @private + * @param {string} source The source to modify. + * @returns {Array} details The details to insert. + * @returns {string} Returns the modified source. + */ + function insertWrapDetails(source, details) { + var length = details.length; + if (!length) { + return source; + } + var lastIndex = length - 1; + details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; + details = details.join(length > 2 ? ', ' : ' '); + return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); + } + + /** + * Checks if `value` is a flattenable `arguments` object or array. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. + */ + function isFlattenable(value) { + return isArray(value) || isArguments(value) || + !!(spreadableSymbol && value && value[spreadableSymbol]); + } + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + length = length == null ? MAX_SAFE_INTEGER : length; + return !!length && + (typeof value == 'number' || reIsUint.test(value)) && + (value > -1 && value % 1 == 0 && value < length); + } + + /** + * Checks if the given arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, + * else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object) + ) { + return eq(object[index], value); + } + return false; + } + + /** + * Checks if `value` is a property name and not a property path. + * + * @private + * @param {*} value The value to check. + * @param {Object} [object] The object to query keys on. + * @returns {boolean} Returns `true` if `value` is a property name, else `false`. + */ + function isKey(value, object) { + if (isArray(value)) { + return false; + } + var type = typeof value; + if (type == 'number' || type == 'symbol' || type == 'boolean' || + value == null || isSymbol(value)) { + return true; + } + return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || + (object != null && value in Object(object)); + } + + /** + * Checks if `value` is suitable for use as unique object key. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is suitable, else `false`. + */ + function isKeyable(value) { + var type = typeof value; + return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') + ? (value !== '__proto__') + : (value === null); + } + + /** + * Checks if `func` has a lazy counterpart. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` has a lazy counterpart, + * else `false`. + */ + function isLaziable(func) { + var funcName = getFuncName(func), + other = lodash[funcName]; + + if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { + return false; + } + if (func === other) { + return true; + } + var data = getData(other); + return !!data && func === data[0]; + } + + /** + * Checks if `func` has its source masked. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` is masked, else `false`. + */ + function isMasked(func) { + return !!maskSrcKey && (maskSrcKey in func); + } + + /** + * Checks if `func` is capable of being masked. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `func` is maskable, else `false`. + */ + var isMaskable = coreJsData ? isFunction : stubFalse; + + /** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ + function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; + } + + /** + * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` if suitable for strict + * equality comparisons, else `false`. + */ + function isStrictComparable(value) { + return value === value && !isObject(value); + } + + /** + * A specialized version of `matchesProperty` for source values suitable + * for strict equality comparisons, i.e. `===`. + * + * @private + * @param {string} key The key of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function matchesStrictComparable(key, srcValue) { + return function(object) { + if (object == null) { + return false; + } + return object[key] === srcValue && + (srcValue !== undefined || (key in Object(object))); + }; + } + + /** + * A specialized version of `_.memoize` which clears the memoized function's + * cache when it exceeds `MAX_MEMOIZE_SIZE`. + * + * @private + * @param {Function} func The function to have its output memoized. + * @returns {Function} Returns the new memoized function. + */ + function memoizeCapped(func) { + var result = memoize(func, function(key) { + if (cache.size === MAX_MEMOIZE_SIZE) { + cache.clear(); + } + return key; + }); + + var cache = result.cache; + return result; + } + + /** + * Merges the function metadata of `source` into `data`. + * + * Merging metadata reduces the number of wrappers used to invoke a function. + * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` + * may be applied regardless of execution order. Methods like `_.ary` and + * `_.rearg` modify function arguments, making the order in which they are + * executed important, preventing the merging of metadata. However, we make + * an exception for a safe combined case where curried functions have `_.ary` + * and or `_.rearg` applied. + * + * @private + * @param {Array} data The destination metadata. + * @param {Array} source The source metadata. + * @returns {Array} Returns `data`. + */ + function mergeData(data, source) { + var bitmask = data[1], + srcBitmask = source[1], + newBitmask = bitmask | srcBitmask, + isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); + + var isCombo = + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || + ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); + + // Exit early if metadata can't be merged. + if (!(isCommon || isCombo)) { + return data; + } + // Use source `thisArg` if available. + if (srcBitmask & WRAP_BIND_FLAG) { + data[2] = source[2]; + // Set when currying a bound function. + newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; + } + // Compose partial arguments. + var value = source[3]; + if (value) { + var partials = data[3]; + data[3] = partials ? composeArgs(partials, value, source[4]) : value; + data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; + } + // Compose partial right arguments. + value = source[5]; + if (value) { + partials = data[5]; + data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; + data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; + } + // Use source `argPos` if available. + value = source[7]; + if (value) { + data[7] = value; + } + // Use source `ary` if it's smaller. + if (srcBitmask & WRAP_ARY_FLAG) { + data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); + } + // Use source `arity` if one is not provided. + if (data[9] == null) { + data[9] = source[9]; + } + // Use source `func` and merge bitmasks. + data[0] = source[0]; + data[1] = newBitmask; + + return data; + } + + /** + * This function is like + * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * except that it includes inherited enumerable properties. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function nativeKeysIn(object) { + var result = []; + if (object != null) { + for (var key in Object(object)) { + result.push(key); + } + } + return result; + } + + /** + * Converts `value` to a string using `Object.prototype.toString`. + * + * @private + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + */ + function objectToString(value) { + return nativeObjectToString.call(value); + } + + /** + * A specialized version of `baseRest` which transforms the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @param {Function} transform The rest array transform. + * @returns {Function} Returns the new function. + */ + function overRest(func, start, transform) { + start = nativeMax(start === undefined ? (func.length - 1) : start, 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + array = Array(length); + + while (++index < length) { + array[index] = args[start + index]; + } + index = -1; + var otherArgs = Array(start + 1); + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = transform(array); + return apply(func, this, otherArgs); + }; + } + + /** + * Gets the parent value at `path` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} path The path to get the parent value of. + * @returns {*} Returns the parent value. + */ + function parent(object, path) { + return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); + } + + /** + * Reorder `array` according to the specified indexes where the element at + * the first index is assigned as the first element, the element at + * the second index is assigned as the second element, and so on. + * + * @private + * @param {Array} array The array to reorder. + * @param {Array} indexes The arranged array indexes. + * @returns {Array} Returns `array`. + */ + function reorder(array, indexes) { + var arrLength = array.length, + length = nativeMin(indexes.length, arrLength), + oldArray = copyArray(array); + + while (length--) { + var index = indexes[length]; + array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; + } + return array; + } + + /** + * Sets metadata for `func`. + * + * **Note:** If this function becomes hot, i.e. is invoked a lot in a short + * period of time, it will trip its breaker and transition to an identity + * function to avoid garbage collection pauses in V8. See + * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) + * for more details. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var setData = shortOut(baseSetData); + + /** + * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout). + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @returns {number|Object} Returns the timer id or timeout object. + */ + var setTimeout = ctxSetTimeout || function(func, wait) { + return root.setTimeout(func, wait); + }; + + /** + * Sets the `toString` method of `func` to return `string`. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var setToString = shortOut(baseSetToString); + + /** + * Sets the `toString` method of `wrapper` to mimic the source of `reference` + * with wrapper details in a comment at the top of the source body. + * + * @private + * @param {Function} wrapper The function to modify. + * @param {Function} reference The reference function. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Function} Returns `wrapper`. + */ + function setWrapToString(wrapper, reference, bitmask) { + var source = (reference + ''); + return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); + } + + /** + * Creates a function that'll short out and invoke `identity` instead + * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` + * milliseconds. + * + * @private + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new shortable function. + */ + function shortOut(func) { + var count = 0, + lastCalled = 0; + + return function() { + var stamp = nativeNow(), + remaining = HOT_SPAN - (stamp - lastCalled); + + lastCalled = stamp; + if (remaining > 0) { + if (++count >= HOT_COUNT) { + return arguments[0]; + } + } else { + count = 0; + } + return func.apply(undefined, arguments); + }; + } + + /** + * A specialized version of `_.shuffle` which mutates and sets the size of `array`. + * + * @private + * @param {Array} array The array to shuffle. + * @param {number} [size=array.length] The size of `array`. + * @returns {Array} Returns `array`. + */ + function shuffleSelf(array, size) { + var index = -1, + length = array.length, + lastIndex = length - 1; + + size = size === undefined ? length : size; + while (++index < size) { + var rand = baseRandom(index, lastIndex), + value = array[rand]; + + array[rand] = array[index]; + array[index] = value; + } + array.length = size; + return array; + } + + /** + * Converts `string` to a property path array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the property path array. + */ + var stringToPath = memoizeCapped(function(string) { + var result = []; + if (reLeadingDot.test(string)) { + result.push(''); + } + string.replace(rePropName, function(match, number, quote, string) { + result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match)); + }); + return result; + }); + + /** + * Converts `value` to a string key if it's not a string or symbol. + * + * @private + * @param {*} value The value to inspect. + * @returns {string|symbol} Returns the key. + */ + function toKey(value) { + if (typeof value == 'string' || isSymbol(value)) { + return value; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * Converts `func` to its source code. + * + * @private + * @param {Function} func The function to convert. + * @returns {string} Returns the source code. + */ + function toSource(func) { + if (func != null) { + try { + return funcToString.call(func); + } catch (e) {} + try { + return (func + ''); + } catch (e) {} + } + return ''; + } + + /** + * Updates wrapper `details` based on `bitmask` flags. + * + * @private + * @returns {Array} details The details to modify. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Array} Returns `details`. + */ + function updateWrapDetails(details, bitmask) { + arrayEach(wrapFlags, function(pair) { + var value = '_.' + pair[0]; + if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { + details.push(value); + } + }); + return details.sort(); + } + + /** + * Creates a clone of `wrapper`. + * + * @private + * @param {Object} wrapper The wrapper to clone. + * @returns {Object} Returns the cloned wrapper. + */ + function wrapperClone(wrapper) { + if (wrapper instanceof LazyWrapper) { + return wrapper.clone(); + } + var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); + result.__actions__ = copyArray(wrapper.__actions__); + result.__index__ = wrapper.__index__; + result.__values__ = wrapper.__values__; + return result; + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of elements split into groups the length of `size`. + * If `array` can't be split evenly, the final chunk will be the remaining + * elements. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to process. + * @param {number} [size=1] The length of each chunk + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the new array of chunks. + * @example + * + * _.chunk(['a', 'b', 'c', 'd'], 2); + * // => [['a', 'b'], ['c', 'd']] + * + * _.chunk(['a', 'b', 'c', 'd'], 3); + * // => [['a', 'b', 'c'], ['d']] + */ + function chunk(array, size, guard) { + if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) { + size = 1; + } else { + size = nativeMax(toInteger(size), 0); + } + var length = array == null ? 0 : array.length; + if (!length || size < 1) { + return []; + } + var index = 0, + resIndex = 0, + result = Array(nativeCeil(length / size)); + + while (index < length) { + result[resIndex++] = baseSlice(array, index, (index += size)); + } + return result; + } + + /** + * Creates an array with all falsey values removed. The values `false`, `null`, + * `0`, `""`, `undefined`, and `NaN` are falsey. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to compact. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.compact([0, 1, false, 2, '', 3]); + * // => [1, 2, 3] + */ + function compact(array) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * Creates a new array concatenating `array` with any additional arrays + * and/or values. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to concatenate. + * @param {...*} [values] The values to concatenate. + * @returns {Array} Returns the new concatenated array. + * @example + * + * var array = [1]; + * var other = _.concat(array, 2, [3], [[4]]); + * + * console.log(other); + * // => [1, 2, 3, [4]] + * + * console.log(array); + * // => [1] + */ + function concat() { + var length = arguments.length; + if (!length) { + return []; + } + var args = Array(length - 1), + array = arguments[0], + index = length; + + while (index--) { + args[index - 1] = arguments[index]; + } + return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); + } + + /** + * Creates an array of `array` values not included in the other given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * **Note:** Unlike `_.pullAll`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.without, _.xor + * @example + * + * _.difference([2, 1], [2, 3]); + * // => [1] + */ + var difference = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) + : []; + }); + + /** + * This method is like `_.difference` except that it accepts `iteratee` which + * is invoked for each element of `array` and `values` to generate the criterion + * by which they're compared. The order and references of result values are + * determined by the first array. The iteratee is invoked with one argument: + * (value). + * + * **Note:** Unlike `_.pullAllBy`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor); + * // => [1.2] + * + * // The `_.property` iteratee shorthand. + * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x'); + * // => [{ 'x': 2 }] + */ + var differenceBy = baseRest(function(array, values) { + var iteratee = last(values); + if (isArrayLikeObject(iteratee)) { + iteratee = undefined; + } + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)) + : []; + }); + + /** + * This method is like `_.difference` except that it accepts `comparator` + * which is invoked to compare elements of `array` to `values`. The order and + * references of result values are determined by the first array. The comparator + * is invoked with two arguments: (arrVal, othVal). + * + * **Note:** Unlike `_.pullAllWith`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; + * + * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual); + * // => [{ 'x': 2, 'y': 1 }] + */ + var differenceWith = baseRest(function(array, values) { + var comparator = last(values); + if (isArrayLikeObject(comparator)) { + comparator = undefined; + } + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator) + : []; + }); + + /** + * Creates a slice of `array` with `n` elements dropped from the beginning. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.drop([1, 2, 3]); + * // => [2, 3] + * + * _.drop([1, 2, 3], 2); + * // => [3] + * + * _.drop([1, 2, 3], 5); + * // => [] + * + * _.drop([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function drop(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * Creates a slice of `array` with `n` elements dropped from the end. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.dropRight([1, 2, 3]); + * // => [1, 2] + * + * _.dropRight([1, 2, 3], 2); + * // => [1] + * + * _.dropRight([1, 2, 3], 5); + * // => [] + * + * _.dropRight([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function dropRight(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + n = length - n; + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` excluding elements dropped from the end. + * Elements are dropped until `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index, array). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the slice of `array`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.dropRightWhile(users, function(o) { return !o.active; }); + * // => objects for ['barney'] + * + * // The `_.matches` iteratee shorthand. + * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false }); + * // => objects for ['barney', 'fred'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.dropRightWhile(users, ['active', false]); + * // => objects for ['barney'] + * + * // The `_.property` iteratee shorthand. + * _.dropRightWhile(users, 'active'); + * // => objects for ['barney', 'fred', 'pebbles'] + */ + function dropRightWhile(array, predicate) { + return (array && array.length) + ? baseWhile(array, getIteratee(predicate, 3), true, true) + : []; + } + + /** + * Creates a slice of `array` excluding elements dropped from the beginning. + * Elements are dropped until `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index, array). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the slice of `array`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.dropWhile(users, function(o) { return !o.active; }); + * // => objects for ['pebbles'] + * + * // The `_.matches` iteratee shorthand. + * _.dropWhile(users, { 'user': 'barney', 'active': false }); + * // => objects for ['fred', 'pebbles'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.dropWhile(users, ['active', false]); + * // => objects for ['pebbles'] + * + * // The `_.property` iteratee shorthand. + * _.dropWhile(users, 'active'); + * // => objects for ['barney', 'fred', 'pebbles'] + */ + function dropWhile(array, predicate) { + return (array && array.length) + ? baseWhile(array, getIteratee(predicate, 3), true) + : []; + } + + /** + * Fills elements of `array` with `value` from `start` up to, but not + * including, `end`. + * + * **Note:** This method mutates `array`. + * + * @static + * @memberOf _ + * @since 3.2.0 + * @category Array + * @param {Array} array The array to fill. + * @param {*} value The value to fill `array` with. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.fill(array, 'a'); + * console.log(array); + * // => ['a', 'a', 'a'] + * + * _.fill(Array(3), 2); + * // => [2, 2, 2] + * + * _.fill([4, 6, 8, 10], '*', 1, 3); + * // => [4, '*', '*', 10] + */ + function fill(array, value, start, end) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + if (start && typeof start != 'number' && isIterateeCall(array, value, start)) { + start = 0; + end = length; + } + return baseFill(array, value, start, end); + } + + /** + * This method is like `_.find` except that it returns the index of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.findIndex(users, function(o) { return o.user == 'barney'; }); + * // => 0 + * + * // The `_.matches` iteratee shorthand. + * _.findIndex(users, { 'user': 'fred', 'active': false }); + * // => 1 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findIndex(users, ['active', false]); + * // => 0 + * + * // The `_.property` iteratee shorthand. + * _.findIndex(users, 'active'); + * // => 2 + */ + function findIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseFindIndex(array, getIteratee(predicate, 3), index); + } + + /** + * This method is like `_.findIndex` except that it iterates over elements + * of `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=array.length-1] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); + * // => 2 + * + * // The `_.matches` iteratee shorthand. + * _.findLastIndex(users, { 'user': 'barney', 'active': true }); + * // => 0 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastIndex(users, ['active', false]); + * // => 2 + * + * // The `_.property` iteratee shorthand. + * _.findLastIndex(users, 'active'); + * // => 0 + */ + function findLastIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = length - 1; + if (fromIndex !== undefined) { + index = toInteger(fromIndex); + index = fromIndex < 0 + ? nativeMax(length + index, 0) + : nativeMin(index, length - 1); + } + return baseFindIndex(array, getIteratee(predicate, 3), index, true); + } + + /** + * Flattens `array` a single level deep. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flatten([1, [2, [3, [4]], 5]]); + * // => [1, 2, [3, [4]], 5] + */ + function flatten(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, 1) : []; + } + + /** + * Recursively flattens `array`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flattenDeep([1, [2, [3, [4]], 5]]); + * // => [1, 2, 3, 4, 5] + */ + function flattenDeep(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, INFINITY) : []; + } + + /** + * Recursively flatten `array` up to `depth` times. + * + * @static + * @memberOf _ + * @since 4.4.0 + * @category Array + * @param {Array} array The array to flatten. + * @param {number} [depth=1] The maximum recursion depth. + * @returns {Array} Returns the new flattened array. + * @example + * + * var array = [1, [2, [3, [4]], 5]]; + * + * _.flattenDepth(array, 1); + * // => [1, 2, [3, [4]], 5] + * + * _.flattenDepth(array, 2); + * // => [1, 2, 3, [4], 5] + */ + function flattenDepth(array, depth) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + depth = depth === undefined ? 1 : toInteger(depth); + return baseFlatten(array, depth); + } + + /** + * The inverse of `_.toPairs`; this method returns an object composed + * from key-value `pairs`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} pairs The key-value pairs. + * @returns {Object} Returns the new object. + * @example + * + * _.fromPairs([['a', 1], ['b', 2]]); + * // => { 'a': 1, 'b': 2 } + */ + function fromPairs(pairs) { + var index = -1, + length = pairs == null ? 0 : pairs.length, + result = {}; + + while (++index < length) { + var pair = pairs[index]; + result[pair[0]] = pair[1]; + } + return result; + } + + /** + * Gets the first element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias first + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the first element of `array`. + * @example + * + * _.head([1, 2, 3]); + * // => 1 + * + * _.head([]); + * // => undefined + */ + function head(array) { + return (array && array.length) ? array[0] : undefined; + } + + /** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it's used as the + * offset from the end of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // Search from the `fromIndex`. + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + */ + function indexOf(array, value, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseIndexOf(array, value, index); + } + + /** + * Gets all but the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.initial([1, 2, 3]); + * // => [1, 2] + */ + function initial(array) { + var length = array == null ? 0 : array.length; + return length ? baseSlice(array, 0, -1) : []; + } + + /** + * Creates an array of unique values that are included in all given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * _.intersection([2, 1], [2, 3]); + * // => [2] + */ + var intersection = baseRest(function(arrays) { + var mapped = arrayMap(arrays, castArrayLikeObject); + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped) + : []; + }); + + /** + * This method is like `_.intersection` except that it accepts `iteratee` + * which is invoked for each element of each `arrays` to generate the criterion + * by which they're compared. The order and references of result values are + * determined by the first array. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor); + * // => [2.1] + * + * // The `_.property` iteratee shorthand. + * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }] + */ + var intersectionBy = baseRest(function(arrays) { + var iteratee = last(arrays), + mapped = arrayMap(arrays, castArrayLikeObject); + + if (iteratee === last(mapped)) { + iteratee = undefined; + } else { + mapped.pop(); + } + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped, getIteratee(iteratee, 2)) + : []; + }); + + /** + * This method is like `_.intersection` except that it accepts `comparator` + * which is invoked to compare elements of `arrays`. The order and references + * of result values are determined by the first array. The comparator is + * invoked with two arguments: (arrVal, othVal). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; + * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; + * + * _.intersectionWith(objects, others, _.isEqual); + * // => [{ 'x': 1, 'y': 2 }] + */ + var intersectionWith = baseRest(function(arrays) { + var comparator = last(arrays), + mapped = arrayMap(arrays, castArrayLikeObject); + + comparator = typeof comparator == 'function' ? comparator : undefined; + if (comparator) { + mapped.pop(); + } + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped, undefined, comparator) + : []; + }); + + /** + * Converts all elements in `array` into a string separated by `separator`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to convert. + * @param {string} [separator=','] The element separator. + * @returns {string} Returns the joined string. + * @example + * + * _.join(['a', 'b', 'c'], '~'); + * // => 'a~b~c' + */ + function join(array, separator) { + return array == null ? '' : nativeJoin.call(array, separator); + } + + /** + * Gets the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the last element of `array`. + * @example + * + * _.last([1, 2, 3]); + * // => 3 + */ + function last(array) { + var length = array == null ? 0 : array.length; + return length ? array[length - 1] : undefined; + } + + /** + * This method is like `_.indexOf` except that it iterates over elements of + * `array` from right to left. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=array.length-1] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.lastIndexOf([1, 2, 1, 2], 2); + * // => 3 + * + * // Search from the `fromIndex`. + * _.lastIndexOf([1, 2, 1, 2], 2, 2); + * // => 1 + */ + function lastIndexOf(array, value, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = length; + if (fromIndex !== undefined) { + index = toInteger(fromIndex); + index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1); + } + return value === value + ? strictLastIndexOf(array, value, index) + : baseFindIndex(array, baseIsNaN, index, true); + } + + /** + * Gets the element at index `n` of `array`. If `n` is negative, the nth + * element from the end is returned. + * + * @static + * @memberOf _ + * @since 4.11.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=0] The index of the element to return. + * @returns {*} Returns the nth element of `array`. + * @example + * + * var array = ['a', 'b', 'c', 'd']; + * + * _.nth(array, 1); + * // => 'b' + * + * _.nth(array, -2); + * // => 'c'; + */ + function nth(array, n) { + return (array && array.length) ? baseNth(array, toInteger(n)) : undefined; + } + + /** + * Removes all given values from `array` using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove` + * to remove elements from an array by predicate. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to modify. + * @param {...*} [values] The values to remove. + * @returns {Array} Returns `array`. + * @example + * + * var array = ['a', 'b', 'c', 'a', 'b', 'c']; + * + * _.pull(array, 'a', 'c'); + * console.log(array); + * // => ['b', 'b'] + */ + var pull = baseRest(pullAll); + + /** + * This method is like `_.pull` except that it accepts an array of values to remove. + * + * **Note:** Unlike `_.difference`, this method mutates `array`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @param {Array} values The values to remove. + * @returns {Array} Returns `array`. + * @example + * + * var array = ['a', 'b', 'c', 'a', 'b', 'c']; + * + * _.pullAll(array, ['a', 'c']); + * console.log(array); + * // => ['b', 'b'] + */ + function pullAll(array, values) { + return (array && array.length && values && values.length) + ? basePullAll(array, values) + : array; + } + + /** + * This method is like `_.pullAll` except that it accepts `iteratee` which is + * invoked for each element of `array` and `values` to generate the criterion + * by which they're compared. The iteratee is invoked with one argument: (value). + * + * **Note:** Unlike `_.differenceBy`, this method mutates `array`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @param {Array} values The values to remove. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns `array`. + * @example + * + * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }]; + * + * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x'); + * console.log(array); + * // => [{ 'x': 2 }] + */ + function pullAllBy(array, values, iteratee) { + return (array && array.length && values && values.length) + ? basePullAll(array, values, getIteratee(iteratee, 2)) + : array; + } + + /** + * This method is like `_.pullAll` except that it accepts `comparator` which + * is invoked to compare elements of `array` to `values`. The comparator is + * invoked with two arguments: (arrVal, othVal). + * + * **Note:** Unlike `_.differenceWith`, this method mutates `array`. + * + * @static + * @memberOf _ + * @since 4.6.0 + * @category Array + * @param {Array} array The array to modify. + * @param {Array} values The values to remove. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns `array`. + * @example + * + * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }]; + * + * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual); + * console.log(array); + * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }] + */ + function pullAllWith(array, values, comparator) { + return (array && array.length && values && values.length) + ? basePullAll(array, values, undefined, comparator) + : array; + } + + /** + * Removes elements from `array` corresponding to `indexes` and returns an + * array of removed elements. + * + * **Note:** Unlike `_.at`, this method mutates `array`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to modify. + * @param {...(number|number[])} [indexes] The indexes of elements to remove. + * @returns {Array} Returns the new array of removed elements. + * @example + * + * var array = ['a', 'b', 'c', 'd']; + * var pulled = _.pullAt(array, [1, 3]); + * + * console.log(array); + * // => ['a', 'c'] + * + * console.log(pulled); + * // => ['b', 'd'] + */ + var pullAt = flatRest(function(array, indexes) { + var length = array == null ? 0 : array.length, + result = baseAt(array, indexes); + + basePullAt(array, arrayMap(indexes, function(index) { + return isIndex(index, length) ? +index : index; + }).sort(compareAscending)); + + return result; + }); + + /** + * Removes all elements from `array` that `predicate` returns truthy for + * and returns an array of the removed elements. The predicate is invoked + * with three arguments: (value, index, array). + * + * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull` + * to pull elements from an array by value. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to modify. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new array of removed elements. + * @example + * + * var array = [1, 2, 3, 4]; + * var evens = _.remove(array, function(n) { + * return n % 2 == 0; + * }); + * + * console.log(array); + * // => [1, 3] + * + * console.log(evens); + * // => [2, 4] + */ + function remove(array, predicate) { + var result = []; + if (!(array && array.length)) { + return result; + } + var index = -1, + indexes = [], + length = array.length; + + predicate = getIteratee(predicate, 3); + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result.push(value); + indexes.push(index); + } + } + basePullAt(array, indexes); + return result; + } + + /** + * Reverses `array` so that the first element becomes the last, the second + * element becomes the second to last, and so on. + * + * **Note:** This method mutates `array` and is based on + * [`Array#reverse`](https://mdn.io/Array/reverse). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.reverse(array); + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function reverse(array) { + return array == null ? array : nativeReverse.call(array); + } + + /** + * Creates a slice of `array` from `start` up to, but not including, `end`. + * + * **Note:** This method is used instead of + * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are + * returned. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function slice(array, start, end) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { + start = 0; + end = length; + } + else { + start = start == null ? 0 : toInteger(start); + end = end === undefined ? length : toInteger(end); + } + return baseSlice(array, start, end); + } + + /** + * Uses a binary search to determine the lowest index at which `value` + * should be inserted into `array` in order to maintain its sort order. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + * @example + * + * _.sortedIndex([30, 50], 40); + * // => 1 + */ + function sortedIndex(array, value) { + return baseSortedIndex(array, value); + } + + /** + * This method is like `_.sortedIndex` except that it accepts `iteratee` + * which is invoked for `value` and each element of `array` to compute their + * sort ranking. The iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + * @example + * + * var objects = [{ 'x': 4 }, { 'x': 5 }]; + * + * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); + * // => 0 + * + * // The `_.property` iteratee shorthand. + * _.sortedIndexBy(objects, { 'x': 4 }, 'x'); + * // => 0 + */ + function sortedIndexBy(array, value, iteratee) { + return baseSortedIndexBy(array, value, getIteratee(iteratee, 2)); + } + + /** + * This method is like `_.indexOf` except that it performs a binary + * search on a sorted `array`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.sortedIndexOf([4, 5, 5, 5, 6], 5); + * // => 1 + */ + function sortedIndexOf(array, value) { + var length = array == null ? 0 : array.length; + if (length) { + var index = baseSortedIndex(array, value); + if (index < length && eq(array[index], value)) { + return index; + } + } + return -1; + } + + /** + * This method is like `_.sortedIndex` except that it returns the highest + * index at which `value` should be inserted into `array` in order to + * maintain its sort order. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + * @example + * + * _.sortedLastIndex([4, 5, 5, 5, 6], 5); + * // => 4 + */ + function sortedLastIndex(array, value) { + return baseSortedIndex(array, value, true); + } + + /** + * This method is like `_.sortedLastIndex` except that it accepts `iteratee` + * which is invoked for `value` and each element of `array` to compute their + * sort ranking. The iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + * @example + * + * var objects = [{ 'x': 4 }, { 'x': 5 }]; + * + * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); + * // => 1 + * + * // The `_.property` iteratee shorthand. + * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x'); + * // => 1 + */ + function sortedLastIndexBy(array, value, iteratee) { + return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true); + } + + /** + * This method is like `_.lastIndexOf` except that it performs a binary + * search on a sorted `array`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5); + * // => 3 + */ + function sortedLastIndexOf(array, value) { + var length = array == null ? 0 : array.length; + if (length) { + var index = baseSortedIndex(array, value, true) - 1; + if (eq(array[index], value)) { + return index; + } + } + return -1; + } + + /** + * This method is like `_.uniq` except that it's designed and optimized + * for sorted arrays. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.sortedUniq([1, 1, 2]); + * // => [1, 2] + */ + function sortedUniq(array) { + return (array && array.length) + ? baseSortedUniq(array) + : []; + } + + /** + * This method is like `_.uniqBy` except that it's designed and optimized + * for sorted arrays. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor); + * // => [1.1, 2.3] + */ + function sortedUniqBy(array, iteratee) { + return (array && array.length) + ? baseSortedUniq(array, getIteratee(iteratee, 2)) + : []; + } + + /** + * Gets all but the first element of `array`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.tail([1, 2, 3]); + * // => [2, 3] + */ + function tail(array) { + var length = array == null ? 0 : array.length; + return length ? baseSlice(array, 1, length) : []; + } + + /** + * Creates a slice of `array` with `n` elements taken from the beginning. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.take([1, 2, 3]); + * // => [1] + * + * _.take([1, 2, 3], 2); + * // => [1, 2] + * + * _.take([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.take([1, 2, 3], 0); + * // => [] + */ + function take(array, n, guard) { + if (!(array && array.length)) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with `n` elements taken from the end. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeRight([1, 2, 3]); + * // => [3] + * + * _.takeRight([1, 2, 3], 2); + * // => [2, 3] + * + * _.takeRight([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.takeRight([1, 2, 3], 0); + * // => [] + */ + function takeRight(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + n = length - n; + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * Creates a slice of `array` with elements taken from the end. Elements are + * taken until `predicate` returns falsey. The predicate is invoked with + * three arguments: (value, index, array). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the slice of `array`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.takeRightWhile(users, function(o) { return !o.active; }); + * // => objects for ['fred', 'pebbles'] + * + * // The `_.matches` iteratee shorthand. + * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false }); + * // => objects for ['pebbles'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.takeRightWhile(users, ['active', false]); + * // => objects for ['fred', 'pebbles'] + * + * // The `_.property` iteratee shorthand. + * _.takeRightWhile(users, 'active'); + * // => [] + */ + function takeRightWhile(array, predicate) { + return (array && array.length) + ? baseWhile(array, getIteratee(predicate, 3), false, true) + : []; + } + + /** + * Creates a slice of `array` with elements taken from the beginning. Elements + * are taken until `predicate` returns falsey. The predicate is invoked with + * three arguments: (value, index, array). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the slice of `array`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.takeWhile(users, function(o) { return !o.active; }); + * // => objects for ['barney', 'fred'] + * + * // The `_.matches` iteratee shorthand. + * _.takeWhile(users, { 'user': 'barney', 'active': false }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.takeWhile(users, ['active', false]); + * // => objects for ['barney', 'fred'] + * + * // The `_.property` iteratee shorthand. + * _.takeWhile(users, 'active'); + * // => [] + */ + function takeWhile(array, predicate) { + return (array && array.length) + ? baseWhile(array, getIteratee(predicate, 3)) + : []; + } + + /** + * Creates an array of unique values, in order, from all given arrays using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.union([2], [1, 2]); + * // => [2, 1] + */ + var union = baseRest(function(arrays) { + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); + }); + + /** + * This method is like `_.union` except that it accepts `iteratee` which is + * invoked for each element of each `arrays` to generate the criterion by + * which uniqueness is computed. Result values are chosen from the first + * array in which the value occurs. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.unionBy([2.1], [1.2, 2.3], Math.floor); + * // => [2.1, 1.2] + * + * // The `_.property` iteratee shorthand. + * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + var unionBy = baseRest(function(arrays) { + var iteratee = last(arrays); + if (isArrayLikeObject(iteratee)) { + iteratee = undefined; + } + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)); + }); + + /** + * This method is like `_.union` except that it accepts `comparator` which + * is invoked to compare elements of `arrays`. Result values are chosen from + * the first array in which the value occurs. The comparator is invoked + * with two arguments: (arrVal, othVal). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of combined values. + * @example + * + * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; + * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; + * + * _.unionWith(objects, others, _.isEqual); + * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] + */ + var unionWith = baseRest(function(arrays) { + var comparator = last(arrays); + comparator = typeof comparator == 'function' ? comparator : undefined; + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator); + }); + + /** + * Creates a duplicate-free version of an array, using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons, in which only the first occurrence of each element + * is kept. The order of result values is determined by the order they occur + * in the array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniq([2, 1, 2]); + * // => [2, 1] + */ + function uniq(array) { + return (array && array.length) ? baseUniq(array) : []; + } + + /** + * This method is like `_.uniq` except that it accepts `iteratee` which is + * invoked for each element in `array` to generate the criterion by which + * uniqueness is computed. The order of result values is determined by the + * order they occur in the array. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniqBy([2.1, 1.2, 2.3], Math.floor); + * // => [2.1, 1.2] + * + * // The `_.property` iteratee shorthand. + * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + function uniqBy(array, iteratee) { + return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : []; + } + + /** + * This method is like `_.uniq` except that it accepts `comparator` which + * is invoked to compare elements of `array`. The order of result values is + * determined by the order they occur in the array.The comparator is invoked + * with two arguments: (arrVal, othVal). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }]; + * + * _.uniqWith(objects, _.isEqual); + * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }] + */ + function uniqWith(array, comparator) { + comparator = typeof comparator == 'function' ? comparator : undefined; + return (array && array.length) ? baseUniq(array, undefined, comparator) : []; + } + + /** + * This method is like `_.zip` except that it accepts an array of grouped + * elements and creates an array regrouping the elements to their pre-zip + * configuration. + * + * @static + * @memberOf _ + * @since 1.2.0 + * @category Array + * @param {Array} array The array of grouped elements to process. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + * + * _.unzip(zipped); + * // => [['a', 'b'], [1, 2], [true, false]] + */ + function unzip(array) { + if (!(array && array.length)) { + return []; + } + var length = 0; + array = arrayFilter(array, function(group) { + if (isArrayLikeObject(group)) { + length = nativeMax(group.length, length); + return true; + } + }); + return baseTimes(length, function(index) { + return arrayMap(array, baseProperty(index)); + }); + } + + /** + * This method is like `_.unzip` except that it accepts `iteratee` to specify + * how regrouped values should be combined. The iteratee is invoked with the + * elements of each group: (...group). + * + * @static + * @memberOf _ + * @since 3.8.0 + * @category Array + * @param {Array} array The array of grouped elements to process. + * @param {Function} [iteratee=_.identity] The function to combine + * regrouped values. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip([1, 2], [10, 20], [100, 200]); + * // => [[1, 10, 100], [2, 20, 200]] + * + * _.unzipWith(zipped, _.add); + * // => [3, 30, 300] + */ + function unzipWith(array, iteratee) { + if (!(array && array.length)) { + return []; + } + var result = unzip(array); + if (iteratee == null) { + return result; + } + return arrayMap(result, function(group) { + return apply(iteratee, undefined, group); + }); + } + + /** + * Creates an array excluding all given values using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.pull`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...*} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.xor + * @example + * + * _.without([2, 1, 2, 3], 1, 2); + * // => [3] + */ + var without = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, values) + : []; + }); + + /** + * Creates an array of unique values that is the + * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference) + * of the given arrays. The order of result values is determined by the order + * they occur in the arrays. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.without + * @example + * + * _.xor([2, 1], [2, 3]); + * // => [1, 3] + */ + var xor = baseRest(function(arrays) { + return baseXor(arrayFilter(arrays, isArrayLikeObject)); + }); + + /** + * This method is like `_.xor` except that it accepts `iteratee` which is + * invoked for each element of each `arrays` to generate the criterion by + * which by which they're compared. The order of result values is determined + * by the order they occur in the arrays. The iteratee is invoked with one + * argument: (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor); + * // => [1.2, 3.4] + * + * // The `_.property` iteratee shorthand. + * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 2 }] + */ + var xorBy = baseRest(function(arrays) { + var iteratee = last(arrays); + if (isArrayLikeObject(iteratee)) { + iteratee = undefined; + } + return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2)); + }); + + /** + * This method is like `_.xor` except that it accepts `comparator` which is + * invoked to compare elements of `arrays`. The order of result values is + * determined by the order they occur in the arrays. The comparator is invoked + * with two arguments: (arrVal, othVal). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; + * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; + * + * _.xorWith(objects, others, _.isEqual); + * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] + */ + var xorWith = baseRest(function(arrays) { + var comparator = last(arrays); + comparator = typeof comparator == 'function' ? comparator : undefined; + return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator); + }); + + /** + * Creates an array of grouped elements, the first of which contains the + * first elements of the given arrays, the second of which contains the + * second elements of the given arrays, and so on. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + */ + var zip = baseRest(unzip); + + /** + * This method is like `_.fromPairs` except that it accepts two arrays, + * one of property identifiers and one of corresponding values. + * + * @static + * @memberOf _ + * @since 0.4.0 + * @category Array + * @param {Array} [props=[]] The property identifiers. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObject(['a', 'b'], [1, 2]); + * // => { 'a': 1, 'b': 2 } + */ + function zipObject(props, values) { + return baseZipObject(props || [], values || [], assignValue); + } + + /** + * This method is like `_.zipObject` except that it supports property paths. + * + * @static + * @memberOf _ + * @since 4.1.0 + * @category Array + * @param {Array} [props=[]] The property identifiers. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]); + * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } } + */ + function zipObjectDeep(props, values) { + return baseZipObject(props || [], values || [], baseSet); + } + + /** + * This method is like `_.zip` except that it accepts `iteratee` to specify + * how grouped values should be combined. The iteratee is invoked with the + * elements of each group: (...group). + * + * @static + * @memberOf _ + * @since 3.8.0 + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @param {Function} [iteratee=_.identity] The function to combine + * grouped values. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) { + * return a + b + c; + * }); + * // => [111, 222] + */ + var zipWith = baseRest(function(arrays) { + var length = arrays.length, + iteratee = length > 1 ? arrays[length - 1] : undefined; + + iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined; + return unzipWith(arrays, iteratee); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` wrapper instance that wraps `value` with explicit method + * chain sequences enabled. The result of such sequences must be unwrapped + * with `_#value`. + * + * @static + * @memberOf _ + * @since 1.3.0 + * @category Seq + * @param {*} value The value to wrap. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'pebbles', 'age': 1 } + * ]; + * + * var youngest = _ + * .chain(users) + * .sortBy('age') + * .map(function(o) { + * return o.user + ' is ' + o.age; + * }) + * .head() + * .value(); + * // => 'pebbles is 1' + */ + function chain(value) { + var result = lodash(value); + result.__chain__ = true; + return result; + } + + /** + * This method invokes `interceptor` and returns `value`. The interceptor + * is invoked with one argument; (value). The purpose of this method is to + * "tap into" a method chain sequence in order to modify intermediate results. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns `value`. + * @example + * + * _([1, 2, 3]) + * .tap(function(array) { + * // Mutate input array. + * array.pop(); + * }) + * .reverse() + * .value(); + * // => [2, 1] + */ + function tap(value, interceptor) { + interceptor(value); + return value; + } + + /** + * This method is like `_.tap` except that it returns the result of `interceptor`. + * The purpose of this method is to "pass thru" values replacing intermediate + * results in a method chain sequence. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns the result of `interceptor`. + * @example + * + * _(' abc ') + * .chain() + * .trim() + * .thru(function(value) { + * return [value]; + * }) + * .value(); + * // => ['abc'] + */ + function thru(value, interceptor) { + return interceptor(value); + } + + /** + * This method is the wrapper version of `_.at`. + * + * @name at + * @memberOf _ + * @since 1.0.0 + * @category Seq + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; + * + * _(object).at(['a[0].b.c', 'a[1]']).value(); + * // => [3, 4] + */ + var wrapperAt = flatRest(function(paths) { + var length = paths.length, + start = length ? paths[0] : 0, + value = this.__wrapped__, + interceptor = function(object) { return baseAt(object, paths); }; + + if (length > 1 || this.__actions__.length || + !(value instanceof LazyWrapper) || !isIndex(start)) { + return this.thru(interceptor); + } + value = value.slice(start, +start + (length ? 1 : 0)); + value.__actions__.push({ + 'func': thru, + 'args': [interceptor], + 'thisArg': undefined + }); + return new LodashWrapper(value, this.__chain__).thru(function(array) { + if (length && !array.length) { + array.push(undefined); + } + return array; + }); + }); + + /** + * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. + * + * @name chain + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 } + * ]; + * + * // A sequence without explicit chaining. + * _(users).head(); + * // => { 'user': 'barney', 'age': 36 } + * + * // A sequence with explicit chaining. + * _(users) + * .chain() + * .head() + * .pick('user') + * .value(); + * // => { 'user': 'barney' } + */ + function wrapperChain() { + return chain(this); + } + + /** + * Executes the chain sequence and returns the wrapped result. + * + * @name commit + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2]; + * var wrapped = _(array).push(3); + * + * console.log(array); + * // => [1, 2] + * + * wrapped = wrapped.commit(); + * console.log(array); + * // => [1, 2, 3] + * + * wrapped.last(); + * // => 3 + * + * console.log(array); + * // => [1, 2, 3] + */ + function wrapperCommit() { + return new LodashWrapper(this.value(), this.__chain__); + } + + /** + * Gets the next value on a wrapped object following the + * [iterator protocol](https://mdn.io/iteration_protocols#iterator). + * + * @name next + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the next iterator value. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped.next(); + * // => { 'done': false, 'value': 1 } + * + * wrapped.next(); + * // => { 'done': false, 'value': 2 } + * + * wrapped.next(); + * // => { 'done': true, 'value': undefined } + */ + function wrapperNext() { + if (this.__values__ === undefined) { + this.__values__ = toArray(this.value()); + } + var done = this.__index__ >= this.__values__.length, + value = done ? undefined : this.__values__[this.__index__++]; + + return { 'done': done, 'value': value }; + } + + /** + * Enables the wrapper to be iterable. + * + * @name Symbol.iterator + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the wrapper object. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped[Symbol.iterator]() === wrapped; + * // => true + * + * Array.from(wrapped); + * // => [1, 2] + */ + function wrapperToIterator() { + return this; + } + + /** + * Creates a clone of the chain sequence planting `value` as the wrapped value. + * + * @name plant + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @param {*} value The value to plant. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2]).map(square); + * var other = wrapped.plant([3, 4]); + * + * other.value(); + * // => [9, 16] + * + * wrapped.value(); + * // => [1, 4] + */ + function wrapperPlant(value) { + var result, + parent = this; + + while (parent instanceof baseLodash) { + var clone = wrapperClone(parent); + clone.__index__ = 0; + clone.__values__ = undefined; + if (result) { + previous.__wrapped__ = clone; + } else { + result = clone; + } + var previous = clone; + parent = parent.__wrapped__; + } + previous.__wrapped__ = value; + return result; + } + + /** + * This method is the wrapper version of `_.reverse`. + * + * **Note:** This method mutates the wrapped array. + * + * @name reverse + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2, 3]; + * + * _(array).reverse().value() + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function wrapperReverse() { + var value = this.__wrapped__; + if (value instanceof LazyWrapper) { + var wrapped = value; + if (this.__actions__.length) { + wrapped = new LazyWrapper(this); + } + wrapped = wrapped.reverse(); + wrapped.__actions__.push({ + 'func': thru, + 'args': [reverse], + 'thisArg': undefined + }); + return new LodashWrapper(wrapped, this.__chain__); + } + return this.thru(reverse); + } + + /** + * Executes the chain sequence to resolve the unwrapped value. + * + * @name value + * @memberOf _ + * @since 0.1.0 + * @alias toJSON, valueOf + * @category Seq + * @returns {*} Returns the resolved unwrapped value. + * @example + * + * _([1, 2, 3]).value(); + * // => [1, 2, 3] + */ + function wrapperValue() { + return baseWrapperValue(this.__wrapped__, this.__actions__); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The corresponding value of + * each key is the number of times the key was returned by `iteratee`. The + * iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.countBy([6.1, 4.2, 6.3], Math.floor); + * // => { '4': 1, '6': 2 } + * + * // The `_.property` iteratee shorthand. + * _.countBy(['one', 'two', 'three'], 'length'); + * // => { '3': 2, '5': 1 } + */ + var countBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + ++result[key]; + } else { + baseAssignValue(result, key, 1); + } + }); + + /** + * Checks if `predicate` returns truthy for **all** elements of `collection`. + * Iteration is stopped once `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * **Note:** This method returns `true` for + * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because + * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of + * elements of empty collections. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.every(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.every(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.every(users, 'active'); + * // => false + */ + function every(collection, predicate, guard) { + var func = isArray(collection) ? arrayEvery : baseEvery; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, getIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning an array of all elements + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * **Note:** Unlike `_.remove`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.reject + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * _.filter(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, { 'age': 36, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.filter(users, 'active'); + * // => objects for ['barney'] + */ + function filter(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, getIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning the first element + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false }, + * { 'user': 'pebbles', 'age': 1, 'active': true } + * ]; + * + * _.find(users, function(o) { return o.age < 40; }); + * // => object for 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.find(users, { 'age': 1, 'active': true }); + * // => object for 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.find(users, ['active', false]); + * // => object for 'fred' + * + * // The `_.property` iteratee shorthand. + * _.find(users, 'active'); + * // => object for 'barney' + */ + var find = createFind(findIndex); + + /** + * This method is like `_.find` except that it iterates over elements of + * `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Collection + * @param {Array|Object} collection The collection to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=collection.length-1] The index to search from. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * _.findLast([1, 2, 3, 4], function(n) { + * return n % 2 == 1; + * }); + * // => 3 + */ + var findLast = createFind(findLastIndex); + + /** + * Creates a flattened array of values by running each element in `collection` + * thru `iteratee` and flattening the mapped results. The iteratee is invoked + * with three arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new flattened array. + * @example + * + * function duplicate(n) { + * return [n, n]; + * } + * + * _.flatMap([1, 2], duplicate); + * // => [1, 1, 2, 2] + */ + function flatMap(collection, iteratee) { + return baseFlatten(map(collection, iteratee), 1); + } + + /** + * This method is like `_.flatMap` except that it recursively flattens the + * mapped results. + * + * @static + * @memberOf _ + * @since 4.7.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new flattened array. + * @example + * + * function duplicate(n) { + * return [[[n, n]]]; + * } + * + * _.flatMapDeep([1, 2], duplicate); + * // => [1, 1, 2, 2] + */ + function flatMapDeep(collection, iteratee) { + return baseFlatten(map(collection, iteratee), INFINITY); + } + + /** + * This method is like `_.flatMap` except that it recursively flattens the + * mapped results up to `depth` times. + * + * @static + * @memberOf _ + * @since 4.7.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {number} [depth=1] The maximum recursion depth. + * @returns {Array} Returns the new flattened array. + * @example + * + * function duplicate(n) { + * return [[[n, n]]]; + * } + * + * _.flatMapDepth([1, 2], duplicate, 2); + * // => [[1, 1], [2, 2]] + */ + function flatMapDepth(collection, iteratee, depth) { + depth = depth === undefined ? 1 : toInteger(depth); + return baseFlatten(map(collection, iteratee), depth); + } + + /** + * Iterates over elements of `collection` and invokes `iteratee` for each element. + * The iteratee is invoked with three arguments: (value, index|key, collection). + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * **Note:** As with other "Collections" methods, objects with a "length" + * property are iterated like arrays. To avoid this behavior use `_.forIn` + * or `_.forOwn` for object iteration. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias each + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + * @see _.forEachRight + * @example + * + * _.forEach([1, 2], function(value) { + * console.log(value); + * }); + * // => Logs `1` then `2`. + * + * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a' then 'b' (iteration order is not guaranteed). + */ + function forEach(collection, iteratee) { + var func = isArray(collection) ? arrayEach : baseEach; + return func(collection, getIteratee(iteratee, 3)); + } + + /** + * This method is like `_.forEach` except that it iterates over elements of + * `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @alias eachRight + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + * @see _.forEach + * @example + * + * _.forEachRight([1, 2], function(value) { + * console.log(value); + * }); + * // => Logs `2` then `1`. + */ + function forEachRight(collection, iteratee) { + var func = isArray(collection) ? arrayEachRight : baseEachRight; + return func(collection, getIteratee(iteratee, 3)); + } + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The order of grouped values + * is determined by the order they occur in `collection`. The corresponding + * value of each key is an array of elements responsible for generating the + * key. The iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.groupBy([6.1, 4.2, 6.3], Math.floor); + * // => { '4': [4.2], '6': [6.1, 6.3] } + * + * // The `_.property` iteratee shorthand. + * _.groupBy(['one', 'two', 'three'], 'length'); + * // => { '3': ['one', 'two'], '5': ['three'] } + */ + var groupBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + result[key].push(value); + } else { + baseAssignValue(result, key, [value]); + } + }); + + /** + * Checks if `value` is in `collection`. If `collection` is a string, it's + * checked for a substring of `value`, otherwise + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * is used for equality comparisons. If `fromIndex` is negative, it's used as + * the offset from the end of `collection`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. + * @returns {boolean} Returns `true` if `value` is found, else `false`. + * @example + * + * _.includes([1, 2, 3], 1); + * // => true + * + * _.includes([1, 2, 3], 1, 2); + * // => false + * + * _.includes({ 'a': 1, 'b': 2 }, 1); + * // => true + * + * _.includes('abcd', 'bc'); + * // => true + */ + function includes(collection, value, fromIndex, guard) { + collection = isArrayLike(collection) ? collection : values(collection); + fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0; + + var length = collection.length; + if (fromIndex < 0) { + fromIndex = nativeMax(length + fromIndex, 0); + } + return isString(collection) + ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1) + : (!!length && baseIndexOf(collection, value, fromIndex) > -1); + } + + /** + * Invokes the method at `path` of each element in `collection`, returning + * an array of the results of each invoked method. Any additional arguments + * are provided to each invoked method. If `path` is a function, it's invoked + * for, and `this` bound to, each element in `collection`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Array|Function|string} path The path of the method to invoke or + * the function invoked per iteration. + * @param {...*} [args] The arguments to invoke each method with. + * @returns {Array} Returns the array of results. + * @example + * + * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort'); + * // => [[1, 5, 7], [1, 2, 3]] + * + * _.invokeMap([123, 456], String.prototype.split, ''); + * // => [['1', '2', '3'], ['4', '5', '6']] + */ + var invokeMap = baseRest(function(collection, path, args) { + var index = -1, + isFunc = typeof path == 'function', + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value) { + result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args); + }); + return result; + }); + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The corresponding value of + * each key is the last element responsible for generating the key. The + * iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * var array = [ + * { 'dir': 'left', 'code': 97 }, + * { 'dir': 'right', 'code': 100 } + * ]; + * + * _.keyBy(array, function(o) { + * return String.fromCharCode(o.code); + * }); + * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } } + * + * _.keyBy(array, 'dir'); + * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } } + */ + var keyBy = createAggregator(function(result, value, key) { + baseAssignValue(result, key, value); + }); + + /** + * Creates an array of values by running each element in `collection` thru + * `iteratee`. The iteratee is invoked with three arguments: + * (value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. + * + * The guarded methods are: + * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, + * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, + * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, + * `template`, `trim`, `trimEnd`, `trimStart`, and `words` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + * @example + * + * function square(n) { + * return n * n; + * } + * + * _.map([4, 8], square); + * // => [16, 64] + * + * _.map({ 'a': 4, 'b': 8 }, square); + * // => [16, 64] (iteration order is not guaranteed) + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * // The `_.property` iteratee shorthand. + * _.map(users, 'user'); + * // => ['barney', 'fred'] + */ + function map(collection, iteratee) { + var func = isArray(collection) ? arrayMap : baseMap; + return func(collection, getIteratee(iteratee, 3)); + } + + /** + * This method is like `_.sortBy` except that it allows specifying the sort + * orders of the iteratees to sort by. If `orders` is unspecified, all values + * are sorted in ascending order. Otherwise, specify an order of "desc" for + * descending or "asc" for ascending sort order of corresponding values. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]] + * The iteratees to sort by. + * @param {string[]} [orders] The sort orders of `iteratees`. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 34 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'barney', 'age': 36 } + * ]; + * + * // Sort by `user` in ascending order and by `age` in descending order. + * _.orderBy(users, ['user', 'age'], ['asc', 'desc']); + * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] + */ + function orderBy(collection, iteratees, orders, guard) { + if (collection == null) { + return []; + } + if (!isArray(iteratees)) { + iteratees = iteratees == null ? [] : [iteratees]; + } + orders = guard ? undefined : orders; + if (!isArray(orders)) { + orders = orders == null ? [] : [orders]; + } + return baseOrderBy(collection, iteratees, orders); + } + + /** + * Creates an array of elements split into two groups, the first of which + * contains elements `predicate` returns truthy for, the second of which + * contains elements `predicate` returns falsey for. The predicate is + * invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the array of grouped elements. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true }, + * { 'user': 'pebbles', 'age': 1, 'active': false } + * ]; + * + * _.partition(users, function(o) { return o.active; }); + * // => objects for [['fred'], ['barney', 'pebbles']] + * + * // The `_.matches` iteratee shorthand. + * _.partition(users, { 'age': 1, 'active': false }); + * // => objects for [['pebbles'], ['barney', 'fred']] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.partition(users, ['active', false]); + * // => objects for [['barney', 'pebbles'], ['fred']] + * + * // The `_.property` iteratee shorthand. + * _.partition(users, 'active'); + * // => objects for [['fred'], ['barney', 'pebbles']] + */ + var partition = createAggregator(function(result, value, key) { + result[key ? 0 : 1].push(value); + }, function() { return [[], []]; }); + + /** + * Reduces `collection` to a value which is the accumulated result of running + * each element in `collection` thru `iteratee`, where each successive + * invocation is supplied the return value of the previous. If `accumulator` + * is not given, the first element of `collection` is used as the initial + * value. The iteratee is invoked with four arguments: + * (accumulator, value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.reduce`, `_.reduceRight`, and `_.transform`. + * + * The guarded methods are: + * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, + * and `sortBy` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @returns {*} Returns the accumulated value. + * @see _.reduceRight + * @example + * + * _.reduce([1, 2], function(sum, n) { + * return sum + n; + * }, 0); + * // => 3 + * + * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { + * (result[value] || (result[value] = [])).push(key); + * return result; + * }, {}); + * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) + */ + function reduce(collection, iteratee, accumulator) { + var func = isArray(collection) ? arrayReduce : baseReduce, + initAccum = arguments.length < 3; + + return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach); + } + + /** + * This method is like `_.reduce` except that it iterates over elements of + * `collection` from right to left. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @returns {*} Returns the accumulated value. + * @see _.reduce + * @example + * + * var array = [[0, 1], [2, 3], [4, 5]]; + * + * _.reduceRight(array, function(flattened, other) { + * return flattened.concat(other); + * }, []); + * // => [4, 5, 2, 3, 0, 1] + */ + function reduceRight(collection, iteratee, accumulator) { + var func = isArray(collection) ? arrayReduceRight : baseReduce, + initAccum = arguments.length < 3; + + return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight); + } + + /** + * The opposite of `_.filter`; this method returns the elements of `collection` + * that `predicate` does **not** return truthy for. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.filter + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true } + * ]; + * + * _.reject(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.reject(users, { 'age': 40, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.reject(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.reject(users, 'active'); + * // => objects for ['barney'] + */ + function reject(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, negate(getIteratee(predicate, 3))); + } + + /** + * Gets a random element from `collection`. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Collection + * @param {Array|Object} collection The collection to sample. + * @returns {*} Returns the random element. + * @example + * + * _.sample([1, 2, 3, 4]); + * // => 2 + */ + function sample(collection) { + var func = isArray(collection) ? arraySample : baseSample; + return func(collection); + } + + /** + * Gets `n` random elements at unique keys from `collection` up to the + * size of `collection`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Collection + * @param {Array|Object} collection The collection to sample. + * @param {number} [n=1] The number of elements to sample. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the random elements. + * @example + * + * _.sampleSize([1, 2, 3], 2); + * // => [3, 1] + * + * _.sampleSize([1, 2, 3], 4); + * // => [2, 3, 1] + */ + function sampleSize(collection, n, guard) { + if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) { + n = 1; + } else { + n = toInteger(n); + } + var func = isArray(collection) ? arraySampleSize : baseSampleSize; + return func(collection, n); + } + + /** + * Creates an array of shuffled values, using a version of the + * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to shuffle. + * @returns {Array} Returns the new shuffled array. + * @example + * + * _.shuffle([1, 2, 3, 4]); + * // => [4, 1, 3, 2] + */ + function shuffle(collection) { + var func = isArray(collection) ? arrayShuffle : baseShuffle; + return func(collection); + } + + /** + * Gets the size of `collection` by returning its length for array-like + * values or the number of own enumerable string keyed properties for objects. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @returns {number} Returns the collection size. + * @example + * + * _.size([1, 2, 3]); + * // => 3 + * + * _.size({ 'a': 1, 'b': 2 }); + * // => 2 + * + * _.size('pebbles'); + * // => 7 + */ + function size(collection) { + if (collection == null) { + return 0; + } + if (isArrayLike(collection)) { + return isString(collection) ? stringSize(collection) : collection.length; + } + var tag = getTag(collection); + if (tag == mapTag || tag == setTag) { + return collection.size; + } + return baseKeys(collection).length; + } + + /** + * Checks if `predicate` returns truthy for **any** element of `collection`. + * Iteration is stopped once `predicate` returns truthy. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + * @example + * + * _.some([null, 0, 'yes', false], Boolean); + * // => true + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.some(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.some(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.some(users, 'active'); + * // => true + */ + function some(collection, predicate, guard) { + var func = isArray(collection) ? arraySome : baseSome; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, getIteratee(predicate, 3)); + } + + /** + * Creates an array of elements, sorted in ascending order by the results of + * running each element in a collection thru each iteratee. This method + * performs a stable sort, that is, it preserves the original sort order of + * equal elements. The iteratees are invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {...(Function|Function[])} [iteratees=[_.identity]] + * The iteratees to sort by. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'barney', 'age': 34 } + * ]; + * + * _.sortBy(users, [function(o) { return o.user; }]); + * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] + * + * _.sortBy(users, ['user', 'age']); + * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] + */ + var sortBy = baseRest(function(collection, iteratees) { + if (collection == null) { + return []; + } + var length = iteratees.length; + if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { + iteratees = []; + } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { + iteratees = [iteratees[0]]; + } + return baseOrderBy(collection, baseFlatten(iteratees, 1), []); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Gets the timestamp of the number of milliseconds that have elapsed since + * the Unix epoch (1 January 1970 00:00:00 UTC). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Date + * @returns {number} Returns the timestamp. + * @example + * + * _.defer(function(stamp) { + * console.log(_.now() - stamp); + * }, _.now()); + * // => Logs the number of milliseconds it took for the deferred invocation. + */ + var now = ctxNow || function() { + return root.Date.now(); + }; + + /*------------------------------------------------------------------------*/ + + /** + * The opposite of `_.before`; this method creates a function that invokes + * `func` once it's called `n` or more times. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {number} n The number of calls before `func` is invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var saves = ['profile', 'settings']; + * + * var done = _.after(saves.length, function() { + * console.log('done saving!'); + * }); + * + * _.forEach(saves, function(type) { + * asyncSave({ 'type': type, 'complete': done }); + * }); + * // => Logs 'done saving!' after the two async saves have completed. + */ + function after(n, func) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n < 1) { + return func.apply(this, arguments); + } + }; + } + + /** + * Creates a function that invokes `func`, with up to `n` arguments, + * ignoring any additional arguments. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} func The function to cap arguments for. + * @param {number} [n=func.length] The arity cap. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Function} Returns the new capped function. + * @example + * + * _.map(['6', '8', '10'], _.ary(parseInt, 1)); + * // => [6, 8, 10] + */ + function ary(func, n, guard) { + n = guard ? undefined : n; + n = (func && n == null) ? func.length : n; + return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n); + } + + /** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => Allows adding up to 4 contacts to the list. + */ + function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; + }; + } + + /** + * Creates a function that invokes `func` with the `this` binding of `thisArg` + * and `partials` prepended to the arguments it receives. + * + * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for partially applied arguments. + * + * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" + * property of bound functions. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * function greet(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * + * var object = { 'user': 'fred' }; + * + * var bound = _.bind(greet, object, 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * // Bound with placeholders. + * var bound = _.bind(greet, object, _, '!'); + * bound('hi'); + * // => 'hi fred!' + */ + var bind = baseRest(function(func, thisArg, partials) { + var bitmask = WRAP_BIND_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, getHolder(bind)); + bitmask |= WRAP_PARTIAL_FLAG; + } + return createWrap(func, bitmask, thisArg, partials, holders); + }); + + /** + * Creates a function that invokes the method at `object[key]` with `partials` + * prepended to the arguments it receives. + * + * This method differs from `_.bind` by allowing bound functions to reference + * methods that may be redefined or don't yet exist. See + * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern) + * for more details. + * + * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic + * builds, may be used as a placeholder for partially applied arguments. + * + * @static + * @memberOf _ + * @since 0.10.0 + * @category Function + * @param {Object} object The object to invoke the method on. + * @param {string} key The key of the method. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * var object = { + * 'user': 'fred', + * 'greet': function(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * }; + * + * var bound = _.bindKey(object, 'greet', 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * object.greet = function(greeting, punctuation) { + * return greeting + 'ya ' + this.user + punctuation; + * }; + * + * bound('!'); + * // => 'hiya fred!' + * + * // Bound with placeholders. + * var bound = _.bindKey(object, 'greet', _, '!'); + * bound('hi'); + * // => 'hiya fred!' + */ + var bindKey = baseRest(function(object, key, partials) { + var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, getHolder(bindKey)); + bitmask |= WRAP_PARTIAL_FLAG; + } + return createWrap(key, bitmask, object, partials, holders); + }); + + /** + * Creates a function that accepts arguments of `func` and either invokes + * `func` returning its result, if at least `arity` number of arguments have + * been provided, or returns a function that accepts the remaining `func` + * arguments, and so on. The arity of `func` may be specified if `func.length` + * is not sufficient. + * + * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for provided arguments. + * + * **Note:** This method doesn't set the "length" property of curried functions. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Function + * @param {Function} func The function to curry. + * @param {number} [arity=func.length] The arity of `func`. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Function} Returns the new curried function. + * @example + * + * var abc = function(a, b, c) { + * return [a, b, c]; + * }; + * + * var curried = _.curry(abc); + * + * curried(1)(2)(3); + * // => [1, 2, 3] + * + * curried(1, 2)(3); + * // => [1, 2, 3] + * + * curried(1, 2, 3); + * // => [1, 2, 3] + * + * // Curried with placeholders. + * curried(1)(_, 3)(2); + * // => [1, 2, 3] + */ + function curry(func, arity, guard) { + arity = guard ? undefined : arity; + var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity); + result.placeholder = curry.placeholder; + return result; + } + + /** + * This method is like `_.curry` except that arguments are applied to `func` + * in the manner of `_.partialRight` instead of `_.partial`. + * + * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic + * builds, may be used as a placeholder for provided arguments. + * + * **Note:** This method doesn't set the "length" property of curried functions. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} func The function to curry. + * @param {number} [arity=func.length] The arity of `func`. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Function} Returns the new curried function. + * @example + * + * var abc = function(a, b, c) { + * return [a, b, c]; + * }; + * + * var curried = _.curryRight(abc); + * + * curried(3)(2)(1); + * // => [1, 2, 3] + * + * curried(2, 3)(1); + * // => [1, 2, 3] + * + * curried(1, 2, 3); + * // => [1, 2, 3] + * + * // Curried with placeholders. + * curried(3)(1, _)(2); + * // => [1, 2, 3] + */ + function curryRight(func, arity, guard) { + arity = guard ? undefined : arity; + var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity); + result.placeholder = curryRight.placeholder; + return result; + } + + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. The debounced function comes with a `cancel` method to cancel + * delayed `func` invocations and a `flush` method to immediately invoke them. + * Provide `options` to indicate whether `func` should be invoked on the + * leading and/or trailing edge of the `wait` timeout. The `func` is invoked + * with the last arguments provided to the debounced function. Subsequent + * calls to the debounced function return the result of the last `func` + * invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the debounced function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.debounce` and `_.throttle`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to debounce. + * @param {number} [wait=0] The number of milliseconds to delay. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=false] + * Specify invoking on the leading edge of the timeout. + * @param {number} [options.maxWait] + * The maximum time `func` is allowed to be delayed before it's invoked. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * // Avoid costly calculations while the window size is in flux. + * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); + * + * // Invoke `sendMail` when clicked, debouncing subsequent calls. + * jQuery(element).on('click', _.debounce(sendMail, 300, { + * 'leading': true, + * 'trailing': false + * })); + * + * // Ensure `batchLog` is invoked once after 1 second of debounced calls. + * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); + * var source = new EventSource('/stream'); + * jQuery(source).on('message', debounced); + * + * // Cancel the trailing debounced invocation. + * jQuery(window).on('popstate', debounced.cancel); + */ + function debounce(func, wait, options) { + var lastArgs, + lastThis, + maxWait, + result, + timerId, + lastCallTime, + lastInvokeTime = 0, + leading = false, + maxing = false, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + wait = toNumber(wait) || 0; + if (isObject(options)) { + leading = !!options.leading; + maxing = 'maxWait' in options; + maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + + function invokeFunc(time) { + var args = lastArgs, + thisArg = lastThis; + + lastArgs = lastThis = undefined; + lastInvokeTime = time; + result = func.apply(thisArg, args); + return result; + } + + function leadingEdge(time) { + // Reset any `maxWait` timer. + lastInvokeTime = time; + // Start the timer for the trailing edge. + timerId = setTimeout(timerExpired, wait); + // Invoke the leading edge. + return leading ? invokeFunc(time) : result; + } + + function remainingWait(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime, + result = wait - timeSinceLastCall; + + return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result; + } + + function shouldInvoke(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime; + + // Either this is the first call, activity has stopped and we're at the + // trailing edge, the system time has gone backwards and we're treating + // it as the trailing edge, or we've hit the `maxWait` limit. + return (lastCallTime === undefined || (timeSinceLastCall >= wait) || + (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); + } + + function timerExpired() { + var time = now(); + if (shouldInvoke(time)) { + return trailingEdge(time); + } + // Restart the timer. + timerId = setTimeout(timerExpired, remainingWait(time)); + } + + function trailingEdge(time) { + timerId = undefined; + + // Only invoke if we have `lastArgs` which means `func` has been + // debounced at least once. + if (trailing && lastArgs) { + return invokeFunc(time); + } + lastArgs = lastThis = undefined; + return result; + } + + function cancel() { + if (timerId !== undefined) { + clearTimeout(timerId); + } + lastInvokeTime = 0; + lastArgs = lastCallTime = lastThis = timerId = undefined; + } + + function flush() { + return timerId === undefined ? result : trailingEdge(now()); + } + + function debounced() { + var time = now(), + isInvoking = shouldInvoke(time); + + lastArgs = arguments; + lastThis = this; + lastCallTime = time; + + if (isInvoking) { + if (timerId === undefined) { + return leadingEdge(lastCallTime); + } + if (maxing) { + // Handle invocations in a tight loop. + timerId = setTimeout(timerExpired, wait); + return invokeFunc(lastCallTime); + } + } + if (timerId === undefined) { + timerId = setTimeout(timerExpired, wait); + } + return result; + } + debounced.cancel = cancel; + debounced.flush = flush; + return debounced; + } + + /** + * Defers invoking the `func` until the current call stack has cleared. Any + * additional arguments are provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to defer. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.defer(function(text) { + * console.log(text); + * }, 'deferred'); + * // => Logs 'deferred' after one millisecond. + */ + var defer = baseRest(function(func, args) { + return baseDelay(func, 1, args); + }); + + /** + * Invokes `func` after `wait` milliseconds. Any additional arguments are + * provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.delay(function(text) { + * console.log(text); + * }, 1000, 'later'); + * // => Logs 'later' after one second. + */ + var delay = baseRest(function(func, wait, args) { + return baseDelay(func, toNumber(wait) || 0, args); + }); + + /** + * Creates a function that invokes `func` with arguments reversed. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to flip arguments for. + * @returns {Function} Returns the new flipped function. + * @example + * + * var flipped = _.flip(function() { + * return _.toArray(arguments); + * }); + * + * flipped('a', 'b', 'c', 'd'); + * // => ['d', 'c', 'b', 'a'] + */ + function flip(func) { + return createWrap(func, WRAP_FLIP_FLAG); + } + + /** + * Creates a function that memoizes the result of `func`. If `resolver` is + * provided, it determines the cache key for storing the result based on the + * arguments provided to the memoized function. By default, the first argument + * provided to the memoized function is used as the map cache key. The `func` + * is invoked with the `this` binding of the memoized function. + * + * **Note:** The cache is exposed as the `cache` property on the memoized + * function. Its creation may be customized by replacing the `_.memoize.Cache` + * constructor with one whose instances implement the + * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) + * method interface of `clear`, `delete`, `get`, `has`, and `set`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to have its output memoized. + * @param {Function} [resolver] The function to resolve the cache key. + * @returns {Function} Returns the new memoized function. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * var other = { 'c': 3, 'd': 4 }; + * + * var values = _.memoize(_.values); + * values(object); + * // => [1, 2] + * + * values(other); + * // => [3, 4] + * + * object.a = 2; + * values(object); + * // => [1, 2] + * + * // Modify the result cache. + * values.cache.set(object, ['a', 'b']); + * values(object); + * // => ['a', 'b'] + * + * // Replace `_.memoize.Cache`. + * _.memoize.Cache = WeakMap; + */ + function memoize(func, resolver) { + if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { + throw new TypeError(FUNC_ERROR_TEXT); + } + var memoized = function() { + var args = arguments, + key = resolver ? resolver.apply(this, args) : args[0], + cache = memoized.cache; + + if (cache.has(key)) { + return cache.get(key); + } + var result = func.apply(this, args); + memoized.cache = cache.set(key, result) || cache; + return result; + }; + memoized.cache = new (memoize.Cache || MapCache); + return memoized; + } + + // Expose `MapCache`. + memoize.Cache = MapCache; + + /** + * Creates a function that negates the result of the predicate `func`. The + * `func` predicate is invoked with the `this` binding and arguments of the + * created function. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} predicate The predicate to negate. + * @returns {Function} Returns the new negated function. + * @example + * + * function isEven(n) { + * return n % 2 == 0; + * } + * + * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); + * // => [1, 3, 5] + */ + function negate(predicate) { + if (typeof predicate != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return function() { + var args = arguments; + switch (args.length) { + case 0: return !predicate.call(this); + case 1: return !predicate.call(this, args[0]); + case 2: return !predicate.call(this, args[0], args[1]); + case 3: return !predicate.call(this, args[0], args[1], args[2]); + } + return !predicate.apply(this, args); + }; + } + + /** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // => `createApplication` is invoked once + */ + function once(func) { + return before(2, func); + } + + /** + * Creates a function that invokes `func` with its arguments transformed. + * + * @static + * @since 4.0.0 + * @memberOf _ + * @category Function + * @param {Function} func The function to wrap. + * @param {...(Function|Function[])} [transforms=[_.identity]] + * The argument transforms. + * @returns {Function} Returns the new function. + * @example + * + * function doubled(n) { + * return n * 2; + * } + * + * function square(n) { + * return n * n; + * } + * + * var func = _.overArgs(function(x, y) { + * return [x, y]; + * }, [square, doubled]); + * + * func(9, 3); + * // => [81, 6] + * + * func(10, 5); + * // => [100, 10] + */ + var overArgs = castRest(function(func, transforms) { + transforms = (transforms.length == 1 && isArray(transforms[0])) + ? arrayMap(transforms[0], baseUnary(getIteratee())) + : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee())); + + var funcsLength = transforms.length; + return baseRest(function(args) { + var index = -1, + length = nativeMin(args.length, funcsLength); + + while (++index < length) { + args[index] = transforms[index].call(this, args[index]); + } + return apply(func, this, args); + }); + }); + + /** + * Creates a function that invokes `func` with `partials` prepended to the + * arguments it receives. This method is like `_.bind` except it does **not** + * alter the `this` binding. + * + * The `_.partial.placeholder` value, which defaults to `_` in monolithic + * builds, may be used as a placeholder for partially applied arguments. + * + * **Note:** This method doesn't set the "length" property of partially + * applied functions. + * + * @static + * @memberOf _ + * @since 0.2.0 + * @category Function + * @param {Function} func The function to partially apply arguments to. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new partially applied function. + * @example + * + * function greet(greeting, name) { + * return greeting + ' ' + name; + * } + * + * var sayHelloTo = _.partial(greet, 'hello'); + * sayHelloTo('fred'); + * // => 'hello fred' + * + * // Partially applied with placeholders. + * var greetFred = _.partial(greet, _, 'fred'); + * greetFred('hi'); + * // => 'hi fred' + */ + var partial = baseRest(function(func, partials) { + var holders = replaceHolders(partials, getHolder(partial)); + return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders); + }); + + /** + * This method is like `_.partial` except that partially applied arguments + * are appended to the arguments it receives. + * + * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic + * builds, may be used as a placeholder for partially applied arguments. + * + * **Note:** This method doesn't set the "length" property of partially + * applied functions. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Function + * @param {Function} func The function to partially apply arguments to. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new partially applied function. + * @example + * + * function greet(greeting, name) { + * return greeting + ' ' + name; + * } + * + * var greetFred = _.partialRight(greet, 'fred'); + * greetFred('hi'); + * // => 'hi fred' + * + * // Partially applied with placeholders. + * var sayHelloTo = _.partialRight(greet, 'hello', _); + * sayHelloTo('fred'); + * // => 'hello fred' + */ + var partialRight = baseRest(function(func, partials) { + var holders = replaceHolders(partials, getHolder(partialRight)); + return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders); + }); + + /** + * Creates a function that invokes `func` with arguments arranged according + * to the specified `indexes` where the argument value at the first index is + * provided as the first argument, the argument value at the second index is + * provided as the second argument, and so on. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} func The function to rearrange arguments for. + * @param {...(number|number[])} indexes The arranged argument indexes. + * @returns {Function} Returns the new function. + * @example + * + * var rearged = _.rearg(function(a, b, c) { + * return [a, b, c]; + * }, [2, 0, 1]); + * + * rearged('b', 'c', 'a') + * // => ['a', 'b', 'c'] + */ + var rearg = flatRest(function(func, indexes) { + return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes); + }); + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as + * an array. + * + * **Note:** This method is based on the + * [rest parameter](https://mdn.io/rest_parameters). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.rest(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function rest(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = start === undefined ? start : toInteger(start); + return baseRest(func, start); + } + + /** + * Creates a function that invokes `func` with the `this` binding of the + * create function and an array of arguments much like + * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply). + * + * **Note:** This method is based on the + * [spread operator](https://mdn.io/spread_operator). + * + * @static + * @memberOf _ + * @since 3.2.0 + * @category Function + * @param {Function} func The function to spread arguments over. + * @param {number} [start=0] The start position of the spread. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.spread(function(who, what) { + * return who + ' says ' + what; + * }); + * + * say(['fred', 'hello']); + * // => 'fred says hello' + * + * var numbers = Promise.all([ + * Promise.resolve(40), + * Promise.resolve(36) + * ]); + * + * numbers.then(_.spread(function(x, y) { + * return x + y; + * })); + * // => a Promise of 76 + */ + function spread(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = start == null ? 0 : nativeMax(toInteger(start), 0); + return baseRest(function(args) { + var array = args[start], + otherArgs = castSlice(args, 0, start); + + if (array) { + arrayPush(otherArgs, array); + } + return apply(func, this, otherArgs); + }); + } + + /** + * Creates a throttled function that only invokes `func` at most once per + * every `wait` milliseconds. The throttled function comes with a `cancel` + * method to cancel delayed `func` invocations and a `flush` method to + * immediately invoke them. Provide `options` to indicate whether `func` + * should be invoked on the leading and/or trailing edge of the `wait` + * timeout. The `func` is invoked with the last arguments provided to the + * throttled function. Subsequent calls to the throttled function return the + * result of the last `func` invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the throttled function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.throttle` and `_.debounce`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to throttle. + * @param {number} [wait=0] The number of milliseconds to throttle invocations to. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=true] + * Specify invoking on the leading edge of the timeout. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new throttled function. + * @example + * + * // Avoid excessively updating the position while scrolling. + * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); + * + * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. + * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); + * jQuery(element).on('click', throttled); + * + * // Cancel the trailing throttled invocation. + * jQuery(window).on('popstate', throttled.cancel); + */ + function throttle(func, wait, options) { + var leading = true, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + if (isObject(options)) { + leading = 'leading' in options ? !!options.leading : leading; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + return debounce(func, wait, { + 'leading': leading, + 'maxWait': wait, + 'trailing': trailing + }); + } + + /** + * Creates a function that accepts up to one argument, ignoring any + * additional arguments. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + * @example + * + * _.map(['6', '8', '10'], _.unary(parseInt)); + * // => [6, 8, 10] + */ + function unary(func) { + return ary(func, 1); + } + + /** + * Creates a function that provides `value` to `wrapper` as its first + * argument. Any additional arguments provided to the function are appended + * to those provided to the `wrapper`. The wrapper is invoked with the `this` + * binding of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {*} value The value to wrap. + * @param {Function} [wrapper=identity] The wrapper function. + * @returns {Function} Returns the new function. + * @example + * + * var p = _.wrap(_.escape, function(func, text) { + * return '

' + func(text) + '

'; + * }); + * + * p('fred, barney, & pebbles'); + * // => '

fred, barney, & pebbles

' + */ + function wrap(value, wrapper) { + return partial(castFunction(wrapper), value); + } + + /*------------------------------------------------------------------------*/ + + /** + * Casts `value` as an array if it's not one. + * + * @static + * @memberOf _ + * @since 4.4.0 + * @category Lang + * @param {*} value The value to inspect. + * @returns {Array} Returns the cast array. + * @example + * + * _.castArray(1); + * // => [1] + * + * _.castArray({ 'a': 1 }); + * // => [{ 'a': 1 }] + * + * _.castArray('abc'); + * // => ['abc'] + * + * _.castArray(null); + * // => [null] + * + * _.castArray(undefined); + * // => [undefined] + * + * _.castArray(); + * // => [] + * + * var array = [1, 2, 3]; + * console.log(_.castArray(array) === array); + * // => true + */ + function castArray() { + if (!arguments.length) { + return []; + } + var value = arguments[0]; + return isArray(value) ? value : [value]; + } + + /** + * Creates a shallow clone of `value`. + * + * **Note:** This method is loosely based on the + * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) + * and supports cloning arrays, array buffers, booleans, date objects, maps, + * numbers, `Object` objects, regexes, sets, strings, symbols, and typed + * arrays. The own enumerable properties of `arguments` objects are cloned + * as plain objects. An empty object is returned for uncloneable values such + * as error objects, functions, DOM nodes, and WeakMaps. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to clone. + * @returns {*} Returns the cloned value. + * @see _.cloneDeep + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var shallow = _.clone(objects); + * console.log(shallow[0] === objects[0]); + * // => true + */ + function clone(value) { + return baseClone(value, CLONE_SYMBOLS_FLAG); + } + + /** + * This method is like `_.clone` except that it accepts `customizer` which + * is invoked to produce the cloned value. If `customizer` returns `undefined`, + * cloning is handled by the method instead. The `customizer` is invoked with + * up to four arguments; (value [, index|key, object, stack]). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to clone. + * @param {Function} [customizer] The function to customize cloning. + * @returns {*} Returns the cloned value. + * @see _.cloneDeepWith + * @example + * + * function customizer(value) { + * if (_.isElement(value)) { + * return value.cloneNode(false); + * } + * } + * + * var el = _.cloneWith(document.body, customizer); + * + * console.log(el === document.body); + * // => false + * console.log(el.nodeName); + * // => 'BODY' + * console.log(el.childNodes.length); + * // => 0 + */ + function cloneWith(value, customizer) { + customizer = typeof customizer == 'function' ? customizer : undefined; + return baseClone(value, CLONE_SYMBOLS_FLAG, customizer); + } + + /** + * This method is like `_.clone` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @returns {*} Returns the deep cloned value. + * @see _.clone + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var deep = _.cloneDeep(objects); + * console.log(deep[0] === objects[0]); + * // => false + */ + function cloneDeep(value) { + return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); + } + + /** + * This method is like `_.cloneWith` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @param {Function} [customizer] The function to customize cloning. + * @returns {*} Returns the deep cloned value. + * @see _.cloneWith + * @example + * + * function customizer(value) { + * if (_.isElement(value)) { + * return value.cloneNode(true); + * } + * } + * + * var el = _.cloneDeepWith(document.body, customizer); + * + * console.log(el === document.body); + * // => false + * console.log(el.nodeName); + * // => 'BODY' + * console.log(el.childNodes.length); + * // => 20 + */ + function cloneDeepWith(value, customizer) { + customizer = typeof customizer == 'function' ? customizer : undefined; + return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer); + } + + /** + * Checks if `object` conforms to `source` by invoking the predicate + * properties of `source` with the corresponding property values of `object`. + * + * **Note:** This method is equivalent to `_.conforms` when `source` is + * partially applied. + * + * @static + * @memberOf _ + * @since 4.14.0 + * @category Lang + * @param {Object} object The object to inspect. + * @param {Object} source The object of property predicates to conform to. + * @returns {boolean} Returns `true` if `object` conforms, else `false`. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * + * _.conformsTo(object, { 'b': function(n) { return n > 1; } }); + * // => true + * + * _.conformsTo(object, { 'b': function(n) { return n > 2; } }); + * // => false + */ + function conformsTo(object, source) { + return source == null || baseConformsTo(object, source, keys(source)); + } + + /** + * Performs a + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * comparison between two values to determine if they are equivalent. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.eq(object, object); + * // => true + * + * _.eq(object, other); + * // => false + * + * _.eq('a', 'a'); + * // => true + * + * _.eq('a', Object('a')); + * // => false + * + * _.eq(NaN, NaN); + * // => true + */ + function eq(value, other) { + return value === other || (value !== value && other !== other); + } + + /** + * Checks if `value` is greater than `other`. + * + * @static + * @memberOf _ + * @since 3.9.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, + * else `false`. + * @see _.lt + * @example + * + * _.gt(3, 1); + * // => true + * + * _.gt(3, 3); + * // => false + * + * _.gt(1, 3); + * // => false + */ + var gt = createRelationalOperation(baseGt); + + /** + * Checks if `value` is greater than or equal to `other`. + * + * @static + * @memberOf _ + * @since 3.9.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than or equal to + * `other`, else `false`. + * @see _.lte + * @example + * + * _.gte(3, 1); + * // => true + * + * _.gte(3, 3); + * // => true + * + * _.gte(1, 3); + * // => false + */ + var gte = createRelationalOperation(function(value, other) { + return value >= other; + }); + + /** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { + return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && + !propertyIsEnumerable.call(value, 'callee'); + }; + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ + var isArray = Array.isArray; + + /** + * Checks if `value` is classified as an `ArrayBuffer` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. + * @example + * + * _.isArrayBuffer(new ArrayBuffer(2)); + * // => true + * + * _.isArrayBuffer(new Array(2)); + * // => false + */ + var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer; + + /** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ + function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); + } + + /** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ + function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); + } + + /** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ + function isBoolean(value) { + return value === true || value === false || + (isObjectLike(value) && baseGetTag(value) == boolTag); + } + + /** + * Checks if `value` is a buffer. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. + * @example + * + * _.isBuffer(new Buffer(2)); + * // => true + * + * _.isBuffer(new Uint8Array(2)); + * // => false + */ + var isBuffer = nativeIsBuffer || stubFalse; + + /** + * Checks if `value` is classified as a `Date` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + * @example + * + * _.isDate(new Date); + * // => true + * + * _.isDate('Mon April 23 2012'); + * // => false + */ + var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; + + /** + * Checks if `value` is likely a DOM element. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`. + * @example + * + * _.isElement(document.body); + * // => true + * + * _.isElement(''); + * // => false + */ + function isElement(value) { + return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value); + } + + /** + * Checks if `value` is an empty object, collection, map, or set. + * + * Objects are considered empty if they have no own enumerable string keyed + * properties. + * + * Array-like values such as `arguments` objects, arrays, buffers, strings, or + * jQuery-like collections are considered empty if they have a `length` of `0`. + * Similarly, maps and sets are considered empty if they have a `size` of `0`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is empty, else `false`. + * @example + * + * _.isEmpty(null); + * // => true + * + * _.isEmpty(true); + * // => true + * + * _.isEmpty(1); + * // => true + * + * _.isEmpty([1, 2, 3]); + * // => false + * + * _.isEmpty({ 'a': 1 }); + * // => false + */ + function isEmpty(value) { + if (value == null) { + return true; + } + if (isArrayLike(value) && + (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || + isBuffer(value) || isTypedArray(value) || isArguments(value))) { + return !value.length; + } + var tag = getTag(value); + if (tag == mapTag || tag == setTag) { + return !value.size; + } + if (isPrototype(value)) { + return !baseKeys(value).length; + } + for (var key in value) { + if (hasOwnProperty.call(value, key)) { + return false; + } + } + return true; + } + + /** + * Performs a deep comparison between two values to determine if they are + * equivalent. + * + * **Note:** This method supports comparing arrays, array buffers, booleans, + * date objects, error objects, maps, numbers, `Object` objects, regexes, + * sets, strings, symbols, and typed arrays. `Object` objects are compared + * by their own, not inherited, enumerable properties. Functions and DOM + * nodes are compared by strict equality, i.e. `===`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.isEqual(object, other); + * // => true + * + * object === other; + * // => false + */ + function isEqual(value, other) { + return baseIsEqual(value, other); + } + + /** + * This method is like `_.isEqual` except that it accepts `customizer` which + * is invoked to compare values. If `customizer` returns `undefined`, comparisons + * are handled by the method instead. The `customizer` is invoked with up to + * six arguments: (objValue, othValue [, index|key, object, other, stack]). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * function isGreeting(value) { + * return /^h(?:i|ello)$/.test(value); + * } + * + * function customizer(objValue, othValue) { + * if (isGreeting(objValue) && isGreeting(othValue)) { + * return true; + * } + * } + * + * var array = ['hello', 'goodbye']; + * var other = ['hi', 'goodbye']; + * + * _.isEqualWith(array, other, customizer); + * // => true + */ + function isEqualWith(value, other, customizer) { + customizer = typeof customizer == 'function' ? customizer : undefined; + var result = customizer ? customizer(value, other) : undefined; + return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result; + } + + /** + * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`, + * `SyntaxError`, `TypeError`, or `URIError` object. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an error object, else `false`. + * @example + * + * _.isError(new Error); + * // => true + * + * _.isError(Error); + * // => false + */ + function isError(value) { + if (!isObjectLike(value)) { + return false; + } + var tag = baseGetTag(value); + return tag == errorTag || tag == domExcTag || + (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value)); + } + + /** + * Checks if `value` is a finite primitive number. + * + * **Note:** This method is based on + * [`Number.isFinite`](https://mdn.io/Number/isFinite). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. + * @example + * + * _.isFinite(3); + * // => true + * + * _.isFinite(Number.MIN_VALUE); + * // => true + * + * _.isFinite(Infinity); + * // => false + * + * _.isFinite('3'); + * // => false + */ + function isFinite(value) { + return typeof value == 'number' && nativeIsFinite(value); + } + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + if (!isObject(value)) { + return false; + } + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 9 which returns 'object' for typed arrays and other constructors. + var tag = baseGetTag(value); + return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; + } + + /** + * Checks if `value` is an integer. + * + * **Note:** This method is based on + * [`Number.isInteger`](https://mdn.io/Number/isInteger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an integer, else `false`. + * @example + * + * _.isInteger(3); + * // => true + * + * _.isInteger(Number.MIN_VALUE); + * // => false + * + * _.isInteger(Infinity); + * // => false + * + * _.isInteger('3'); + * // => false + */ + function isInteger(value) { + return typeof value == 'number' && value == toInteger(value); + } + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ + function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ + function isObject(value) { + var type = typeof value; + return value != null && (type == 'object' || type == 'function'); + } + + /** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ + function isObjectLike(value) { + return value != null && typeof value == 'object'; + } + + /** + * Checks if `value` is classified as a `Map` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + * @example + * + * _.isMap(new Map); + * // => true + * + * _.isMap(new WeakMap); + * // => false + */ + var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; + + /** + * Performs a partial deep comparison between `object` and `source` to + * determine if `object` contains equivalent property values. + * + * **Note:** This method is equivalent to `_.matches` when `source` is + * partially applied. + * + * Partial comparisons will match empty array and empty object `source` + * values against any array or object value, respectively. See `_.isEqual` + * for a list of supported value comparisons. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * + * _.isMatch(object, { 'b': 2 }); + * // => true + * + * _.isMatch(object, { 'b': 1 }); + * // => false + */ + function isMatch(object, source) { + return object === source || baseIsMatch(object, source, getMatchData(source)); + } + + /** + * This method is like `_.isMatch` except that it accepts `customizer` which + * is invoked to compare values. If `customizer` returns `undefined`, comparisons + * are handled by the method instead. The `customizer` is invoked with five + * arguments: (objValue, srcValue, index|key, object, source). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + * @example + * + * function isGreeting(value) { + * return /^h(?:i|ello)$/.test(value); + * } + * + * function customizer(objValue, srcValue) { + * if (isGreeting(objValue) && isGreeting(srcValue)) { + * return true; + * } + * } + * + * var object = { 'greeting': 'hello' }; + * var source = { 'greeting': 'hi' }; + * + * _.isMatchWith(object, source, customizer); + * // => true + */ + function isMatchWith(object, source, customizer) { + customizer = typeof customizer == 'function' ? customizer : undefined; + return baseIsMatch(object, source, getMatchData(source), customizer); + } + + /** + * Checks if `value` is `NaN`. + * + * **Note:** This method is based on + * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as + * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for + * `undefined` and other non-number values. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + * @example + * + * _.isNaN(NaN); + * // => true + * + * _.isNaN(new Number(NaN)); + * // => true + * + * isNaN(undefined); + * // => true + * + * _.isNaN(undefined); + * // => false + */ + function isNaN(value) { + // An `NaN` primitive is the only value that is not equal to itself. + // Perform the `toStringTag` check first to avoid errors with some + // ActiveX objects in IE. + return isNumber(value) && value != +value; + } + + /** + * Checks if `value` is a pristine native function. + * + * **Note:** This method can't reliably detect native functions in the presence + * of the core-js package because core-js circumvents this kind of detection. + * Despite multiple requests, the core-js maintainer has made it clear: any + * attempt to fix the detection will be obstructed. As a result, we're left + * with little choice but to throw an error. Unfortunately, this also affects + * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill), + * which rely on core-js. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + * @example + * + * _.isNative(Array.prototype.push); + * // => true + * + * _.isNative(_); + * // => false + */ + function isNative(value) { + if (isMaskable(value)) { + throw new Error(CORE_ERROR_TEXT); + } + return baseIsNative(value); + } + + /** + * Checks if `value` is `null`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `null`, else `false`. + * @example + * + * _.isNull(null); + * // => true + * + * _.isNull(void 0); + * // => false + */ + function isNull(value) { + return value === null; + } + + /** + * Checks if `value` is `null` or `undefined`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is nullish, else `false`. + * @example + * + * _.isNil(null); + * // => true + * + * _.isNil(void 0); + * // => true + * + * _.isNil(NaN); + * // => false + */ + function isNil(value) { + return value == null; + } + + /** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are + * classified as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a number, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ + function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && baseGetTag(value) == numberTag); + } + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + if (!isObjectLike(value) || baseGetTag(value) != objectTag) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; + return typeof Ctor == 'function' && Ctor instanceof Ctor && + funcToString.call(Ctor) == objectCtorString; + } + + /** + * Checks if `value` is classified as a `RegExp` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + * @example + * + * _.isRegExp(/abc/); + * // => true + * + * _.isRegExp('/abc/'); + * // => false + */ + var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; + + /** + * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754 + * double precision number which isn't the result of a rounded unsafe integer. + * + * **Note:** This method is based on + * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`. + * @example + * + * _.isSafeInteger(3); + * // => true + * + * _.isSafeInteger(Number.MIN_VALUE); + * // => false + * + * _.isSafeInteger(Infinity); + * // => false + * + * _.isSafeInteger('3'); + * // => false + */ + function isSafeInteger(value) { + return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is classified as a `Set` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + * @example + * + * _.isSet(new Set); + * // => true + * + * _.isSet(new WeakSet); + * // => false + */ + var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; + + /** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a string, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ + function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); + } + + /** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ + function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && baseGetTag(value) == symbolTag); + } + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; + + /** + * Checks if `value` is `undefined`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. + * @example + * + * _.isUndefined(void 0); + * // => true + * + * _.isUndefined(null); + * // => false + */ + function isUndefined(value) { + return value === undefined; + } + + /** + * Checks if `value` is classified as a `WeakMap` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a weak map, else `false`. + * @example + * + * _.isWeakMap(new WeakMap); + * // => true + * + * _.isWeakMap(new Map); + * // => false + */ + function isWeakMap(value) { + return isObjectLike(value) && getTag(value) == weakMapTag; + } + + /** + * Checks if `value` is classified as a `WeakSet` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a weak set, else `false`. + * @example + * + * _.isWeakSet(new WeakSet); + * // => true + * + * _.isWeakSet(new Set); + * // => false + */ + function isWeakSet(value) { + return isObjectLike(value) && baseGetTag(value) == weakSetTag; + } + + /** + * Checks if `value` is less than `other`. + * + * @static + * @memberOf _ + * @since 3.9.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, + * else `false`. + * @see _.gt + * @example + * + * _.lt(1, 3); + * // => true + * + * _.lt(3, 3); + * // => false + * + * _.lt(3, 1); + * // => false + */ + var lt = createRelationalOperation(baseLt); + + /** + * Checks if `value` is less than or equal to `other`. + * + * @static + * @memberOf _ + * @since 3.9.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than or equal to + * `other`, else `false`. + * @see _.gte + * @example + * + * _.lte(1, 3); + * // => true + * + * _.lte(3, 3); + * // => true + * + * _.lte(3, 1); + * // => false + */ + var lte = createRelationalOperation(function(value, other) { + return value <= other; + }); + + /** + * Converts `value` to an array. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Array} Returns the converted array. + * @example + * + * _.toArray({ 'a': 1, 'b': 2 }); + * // => [1, 2] + * + * _.toArray('abc'); + * // => ['a', 'b', 'c'] + * + * _.toArray(1); + * // => [] + * + * _.toArray(null); + * // => [] + */ + function toArray(value) { + if (!value) { + return []; + } + if (isArrayLike(value)) { + return isString(value) ? stringToArray(value) : copyArray(value); + } + if (symIterator && value[symIterator]) { + return iteratorToArray(value[symIterator]()); + } + var tag = getTag(value), + func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); + + return func(value); + } + + /** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ + function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; + } + + /** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ + function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; + } + + /** + * Converts `value` to an integer suitable for use as the length of an + * array-like object. + * + * **Note:** This method is based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toLength(3.2); + * // => 3 + * + * _.toLength(Number.MIN_VALUE); + * // => 0 + * + * _.toLength(Infinity); + * // => 4294967295 + * + * _.toLength('3.2'); + * // => 3 + */ + function toLength(value) { + return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0; + } + + /** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ + function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); + } + + /** + * Converts `value` to a plain object flattening inherited enumerable string + * keyed properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return copyObject(value, keysIn(value)); + } + + /** + * Converts `value` to a safe integer. A safe integer can be compared and + * represented correctly. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toSafeInteger(3.2); + * // => 3 + * + * _.toSafeInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toSafeInteger(Infinity); + * // => 9007199254740991 + * + * _.toSafeInteger('3.2'); + * // => 3 + */ + function toSafeInteger(value) { + return value + ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER) + : (value === 0 ? value : 0); + } + + /** + * Converts `value` to a string. An empty string is returned for `null` + * and `undefined` values. The sign of `-0` is preserved. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + * @example + * + * _.toString(null); + * // => '' + * + * _.toString(-0); + * // => '-0' + * + * _.toString([1, 2, 3]); + * // => '1,2,3' + */ + function toString(value) { + return value == null ? '' : baseToString(value); + } + + /*------------------------------------------------------------------------*/ + + /** + * Assigns own enumerable string keyed properties of source objects to the + * destination object. Source objects are applied from left to right. + * Subsequent sources overwrite property assignments of previous sources. + * + * **Note:** This method mutates `object` and is loosely based on + * [`Object.assign`](https://mdn.io/Object/assign). + * + * @static + * @memberOf _ + * @since 0.10.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.assignIn + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * function Bar() { + * this.c = 3; + * } + * + * Foo.prototype.b = 2; + * Bar.prototype.d = 4; + * + * _.assign({ 'a': 0 }, new Foo, new Bar); + * // => { 'a': 1, 'c': 3 } + */ + var assign = createAssigner(function(object, source) { + if (isPrototype(source) || isArrayLike(source)) { + copyObject(source, keys(source), object); + return; + } + for (var key in source) { + if (hasOwnProperty.call(source, key)) { + assignValue(object, key, source[key]); + } + } + }); + + /** + * This method is like `_.assign` except that it iterates over own and + * inherited source properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias extend + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.assign + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * function Bar() { + * this.c = 3; + * } + * + * Foo.prototype.b = 2; + * Bar.prototype.d = 4; + * + * _.assignIn({ 'a': 0 }, new Foo, new Bar); + * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } + */ + var assignIn = createAssigner(function(object, source) { + copyObject(source, keysIn(source), object); + }); + + /** + * This method is like `_.assignIn` except that it accepts `customizer` + * which is invoked to produce the assigned values. If `customizer` returns + * `undefined`, assignment is handled by the method instead. The `customizer` + * is invoked with five arguments: (objValue, srcValue, key, object, source). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias extendWith + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} [customizer] The function to customize assigned values. + * @returns {Object} Returns `object`. + * @see _.assignWith + * @example + * + * function customizer(objValue, srcValue) { + * return _.isUndefined(objValue) ? srcValue : objValue; + * } + * + * var defaults = _.partialRight(_.assignInWith, customizer); + * + * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var assignInWith = createAssigner(function(object, source, srcIndex, customizer) { + copyObject(source, keysIn(source), object, customizer); + }); + + /** + * This method is like `_.assign` except that it accepts `customizer` + * which is invoked to produce the assigned values. If `customizer` returns + * `undefined`, assignment is handled by the method instead. The `customizer` + * is invoked with five arguments: (objValue, srcValue, key, object, source). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} [customizer] The function to customize assigned values. + * @returns {Object} Returns `object`. + * @see _.assignInWith + * @example + * + * function customizer(objValue, srcValue) { + * return _.isUndefined(objValue) ? srcValue : objValue; + * } + * + * var defaults = _.partialRight(_.assignWith, customizer); + * + * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var assignWith = createAssigner(function(object, source, srcIndex, customizer) { + copyObject(source, keys(source), object, customizer); + }); + + /** + * Creates an array of values corresponding to `paths` of `object`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Array} Returns the picked values. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; + * + * _.at(object, ['a[0].b.c', 'a[1]']); + * // => [3, 4] + */ + var at = flatRest(baseAt); + + /** + * Creates an object that inherits from the `prototype` object. If a + * `properties` object is given, its own enumerable string keyed properties + * are assigned to the created object. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Object + * @param {Object} prototype The object to inherit from. + * @param {Object} [properties] The properties to assign to the object. + * @returns {Object} Returns the new object. + * @example + * + * function Shape() { + * this.x = 0; + * this.y = 0; + * } + * + * function Circle() { + * Shape.call(this); + * } + * + * Circle.prototype = _.create(Shape.prototype, { + * 'constructor': Circle + * }); + * + * var circle = new Circle; + * circle instanceof Circle; + * // => true + * + * circle instanceof Shape; + * // => true + */ + function create(prototype, properties) { + var result = baseCreate(prototype); + return properties == null ? result : baseAssign(result, properties); + } + + /** + * Assigns own and inherited enumerable string keyed properties of source + * objects to the destination object for all destination properties that + * resolve to `undefined`. Source objects are applied from left to right. + * Once a property is set, additional values of the same property are ignored. + * + * **Note:** This method mutates `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaultsDeep + * @example + * + * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var defaults = baseRest(function(args) { + args.push(undefined, customDefaultsAssignIn); + return apply(assignInWith, undefined, args); + }); + + /** + * This method is like `_.defaults` except that it recursively assigns + * default properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 3.10.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaults + * @example + * + * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); + * // => { 'a': { 'b': 2, 'c': 3 } } + */ + var defaultsDeep = baseRest(function(args) { + args.push(undefined, customDefaultsMerge); + return apply(mergeWith, undefined, args); + }); + + /** + * This method is like `_.find` except that it returns the key of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findKey(users, function(o) { return o.age < 40; }); + * // => 'barney' (iteration order is not guaranteed) + * + * // The `_.matches` iteratee shorthand. + * _.findKey(users, { 'age': 1, 'active': true }); + * // => 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findKey(users, 'active'); + * // => 'barney' + */ + function findKey(object, predicate) { + return baseFindKey(object, getIteratee(predicate, 3), baseForOwn); + } + + /** + * This method is like `_.findKey` except that it iterates over elements of + * a collection in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findLastKey(users, function(o) { return o.age < 40; }); + * // => returns 'pebbles' assuming `_.findKey` returns 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.findLastKey(users, { 'age': 36, 'active': true }); + * // => 'barney' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findLastKey(users, 'active'); + * // => 'pebbles' + */ + function findLastKey(object, predicate) { + return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight); + } + + /** + * Iterates over own and inherited enumerable string keyed properties of an + * object and invokes `iteratee` for each property. The iteratee is invoked + * with three arguments: (value, key, object). Iteratee functions may exit + * iteration early by explicitly returning `false`. + * + * @static + * @memberOf _ + * @since 0.3.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns `object`. + * @see _.forInRight + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forIn(new Foo, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed). + */ + function forIn(object, iteratee) { + return object == null + ? object + : baseFor(object, getIteratee(iteratee, 3), keysIn); + } + + /** + * This method is like `_.forIn` except that it iterates over properties of + * `object` in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns `object`. + * @see _.forIn + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forInRight(new Foo, function(value, key) { + * console.log(key); + * }); + * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'. + */ + function forInRight(object, iteratee) { + return object == null + ? object + : baseForRight(object, getIteratee(iteratee, 3), keysIn); + } + + /** + * Iterates over own enumerable string keyed properties of an object and + * invokes `iteratee` for each property. The iteratee is invoked with three + * arguments: (value, key, object). Iteratee functions may exit iteration + * early by explicitly returning `false`. + * + * @static + * @memberOf _ + * @since 0.3.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns `object`. + * @see _.forOwnRight + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forOwn(new Foo, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a' then 'b' (iteration order is not guaranteed). + */ + function forOwn(object, iteratee) { + return object && baseForOwn(object, getIteratee(iteratee, 3)); + } + + /** + * This method is like `_.forOwn` except that it iterates over properties of + * `object` in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns `object`. + * @see _.forOwn + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forOwnRight(new Foo, function(value, key) { + * console.log(key); + * }); + * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'. + */ + function forOwnRight(object, iteratee) { + return object && baseForOwnRight(object, getIteratee(iteratee, 3)); + } + + /** + * Creates an array of function property names from own enumerable properties + * of `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to inspect. + * @returns {Array} Returns the function names. + * @see _.functionsIn + * @example + * + * function Foo() { + * this.a = _.constant('a'); + * this.b = _.constant('b'); + * } + * + * Foo.prototype.c = _.constant('c'); + * + * _.functions(new Foo); + * // => ['a', 'b'] + */ + function functions(object) { + return object == null ? [] : baseFunctions(object, keys(object)); + } + + /** + * Creates an array of function property names from own and inherited + * enumerable properties of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to inspect. + * @returns {Array} Returns the function names. + * @see _.functions + * @example + * + * function Foo() { + * this.a = _.constant('a'); + * this.b = _.constant('b'); + * } + * + * Foo.prototype.c = _.constant('c'); + * + * _.functionsIn(new Foo); + * // => ['a', 'b', 'c'] + */ + function functionsIn(object) { + return object == null ? [] : baseFunctions(object, keysIn(object)); + } + + /** + * Gets the value at `path` of `object`. If the resolved value is + * `undefined`, the `defaultValue` is returned in its place. + * + * @static + * @memberOf _ + * @since 3.7.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.get(object, 'a[0].b.c'); + * // => 3 + * + * _.get(object, ['a', '0', 'b', 'c']); + * // => 3 + * + * _.get(object, 'a.b.c', 'default'); + * // => 'default' + */ + function get(object, path, defaultValue) { + var result = object == null ? undefined : baseGet(object, path); + return result === undefined ? defaultValue : result; + } + + /** + * Checks if `path` is a direct property of `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = { 'a': { 'b': 2 } }; + * var other = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.has(object, 'a'); + * // => true + * + * _.has(object, 'a.b'); + * // => true + * + * _.has(object, ['a', 'b']); + * // => true + * + * _.has(other, 'a'); + * // => false + */ + function has(object, path) { + return object != null && hasPath(object, path, baseHas); + } + + /** + * Checks if `path` is a direct or inherited property of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.hasIn(object, 'a'); + * // => true + * + * _.hasIn(object, 'a.b'); + * // => true + * + * _.hasIn(object, ['a', 'b']); + * // => true + * + * _.hasIn(object, 'b'); + * // => false + */ + function hasIn(object, path) { + return object != null && hasPath(object, path, baseHasIn); + } + + /** + * Creates an object composed of the inverted keys and values of `object`. + * If `object` contains duplicate values, subsequent values overwrite + * property assignments of previous values. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Object + * @param {Object} object The object to invert. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invert(object); + * // => { '1': 'c', '2': 'b' } + */ + var invert = createInverter(function(result, value, key) { + result[value] = key; + }, constant(identity)); + + /** + * This method is like `_.invert` except that the inverted object is generated + * from the results of running each element of `object` thru `iteratee`. The + * corresponding inverted value of each inverted key is an array of keys + * responsible for generating the inverted value. The iteratee is invoked + * with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.1.0 + * @category Object + * @param {Object} object The object to invert. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invertBy(object); + * // => { '1': ['a', 'c'], '2': ['b'] } + * + * _.invertBy(object, function(value) { + * return 'group' + value; + * }); + * // => { 'group1': ['a', 'c'], 'group2': ['b'] } + */ + var invertBy = createInverter(function(result, value, key) { + if (hasOwnProperty.call(result, value)) { + result[value].push(key); + } else { + result[value] = [key]; + } + }, getIteratee); + + /** + * Invokes the method at `path` of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {...*} [args] The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + * @example + * + * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] }; + * + * _.invoke(object, 'a[0].b.c.slice', 1, 3); + * // => [2, 3] + */ + var invoke = baseRest(baseInvoke); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); + } + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); + } + + /** + * The opposite of `_.mapValues`; this method creates an object with the + * same values as `object` and keys generated by running each own enumerable + * string keyed property of `object` thru `iteratee`. The iteratee is invoked + * with three arguments: (value, key, object). + * + * @static + * @memberOf _ + * @since 3.8.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns the new mapped object. + * @see _.mapValues + * @example + * + * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) { + * return key + value; + * }); + * // => { 'a1': 1, 'b2': 2 } + */ + function mapKeys(object, iteratee) { + var result = {}; + iteratee = getIteratee(iteratee, 3); + + baseForOwn(object, function(value, key, object) { + baseAssignValue(result, iteratee(value, key, object), value); + }); + return result; + } + + /** + * Creates an object with the same keys as `object` and values generated + * by running each own enumerable string keyed property of `object` thru + * `iteratee`. The iteratee is invoked with three arguments: + * (value, key, object). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns the new mapped object. + * @see _.mapKeys + * @example + * + * var users = { + * 'fred': { 'user': 'fred', 'age': 40 }, + * 'pebbles': { 'user': 'pebbles', 'age': 1 } + * }; + * + * _.mapValues(users, function(o) { return o.age; }); + * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) + * + * // The `_.property` iteratee shorthand. + * _.mapValues(users, 'age'); + * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) + */ + function mapValues(object, iteratee) { + var result = {}; + iteratee = getIteratee(iteratee, 3); + + baseForOwn(object, function(value, key, object) { + baseAssignValue(result, key, iteratee(value, key, object)); + }); + return result; + } + + /** + * This method is like `_.assign` except that it recursively merges own and + * inherited enumerable string keyed properties of source objects into the + * destination object. Source properties that resolve to `undefined` are + * skipped if a destination value exists. Array and plain object properties + * are merged recursively. Other objects and value types are overridden by + * assignment. Source objects are applied from left to right. Subsequent + * sources overwrite property assignments of previous sources. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @example + * + * var object = { + * 'a': [{ 'b': 2 }, { 'd': 4 }] + * }; + * + * var other = { + * 'a': [{ 'c': 3 }, { 'e': 5 }] + * }; + * + * _.merge(object, other); + * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } + */ + var merge = createAssigner(function(object, source, srcIndex) { + baseMerge(object, source, srcIndex); + }); + + /** + * This method is like `_.merge` except that it accepts `customizer` which + * is invoked to produce the merged values of the destination and source + * properties. If `customizer` returns `undefined`, merging is handled by the + * method instead. The `customizer` is invoked with six arguments: + * (objValue, srcValue, key, object, source, stack). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} customizer The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * function customizer(objValue, srcValue) { + * if (_.isArray(objValue)) { + * return objValue.concat(srcValue); + * } + * } + * + * var object = { 'a': [1], 'b': [2] }; + * var other = { 'a': [3], 'b': [4] }; + * + * _.mergeWith(object, other, customizer); + * // => { 'a': [1, 3], 'b': [2, 4] } + */ + var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { + baseMerge(object, source, srcIndex, customizer); + }); + + /** + * The opposite of `_.pick`; this method creates an object composed of the + * own and inherited enumerable property paths of `object` that are not omitted. + * + * **Note:** This method is considerably slower than `_.pick`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to omit. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omit(object, ['a', 'c']); + * // => { 'b': '2' } + */ + var omit = flatRest(function(object, paths) { + var result = {}; + if (object == null) { + return result; + } + var isDeep = false; + paths = arrayMap(paths, function(path) { + path = castPath(path, object); + isDeep || (isDeep = path.length > 1); + return path; + }); + copyObject(object, getAllKeysIn(object), result); + if (isDeep) { + result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); + } + var length = paths.length; + while (length--) { + baseUnset(result, paths[length]); + } + return result; + }); + + /** + * The opposite of `_.pickBy`; this method creates an object composed of + * the own and inherited enumerable string keyed properties of `object` that + * `predicate` doesn't return truthy for. The predicate is invoked with two + * arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omitBy(object, _.isNumber); + * // => { 'b': '2' } + */ + function omitBy(object, predicate) { + return pickBy(object, negate(getIteratee(predicate))); + } + + /** + * Creates an object composed of the picked `object` properties. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pick(object, ['a', 'c']); + * // => { 'a': 1, 'c': 3 } + */ + var pick = flatRest(function(object, paths) { + return object == null ? {} : basePick(object, paths); + }); + + /** + * Creates an object composed of the `object` properties `predicate` returns + * truthy for. The predicate is invoked with two arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pickBy(object, _.isNumber); + * // => { 'a': 1, 'c': 3 } + */ + function pickBy(object, predicate) { + if (object == null) { + return {}; + } + var props = arrayMap(getAllKeysIn(object), function(prop) { + return [prop]; + }); + predicate = getIteratee(predicate); + return basePickBy(object, props, function(value, path) { + return predicate(value, path[0]); + }); + } + + /** + * This method is like `_.get` except that if the resolved value is a + * function it's invoked with the `this` binding of its parent object and + * its result is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to resolve. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; + * + * _.result(object, 'a[0].b.c1'); + * // => 3 + * + * _.result(object, 'a[0].b.c2'); + * // => 4 + * + * _.result(object, 'a[0].b.c3', 'default'); + * // => 'default' + * + * _.result(object, 'a[0].b.c3', _.constant('default')); + * // => 'default' + */ + function result(object, path, defaultValue) { + path = castPath(path, object); + + var index = -1, + length = path.length; + + // Ensure the loop is entered when path is empty. + if (!length) { + length = 1; + object = undefined; + } + while (++index < length) { + var value = object == null ? undefined : object[toKey(path[index])]; + if (value === undefined) { + index = length; + value = defaultValue; + } + object = isFunction(value) ? value.call(object) : value; + } + return object; + } + + /** + * Sets the value at `path` of `object`. If a portion of `path` doesn't exist, + * it's created. Arrays are created for missing index properties while objects + * are created for all other missing properties. Use `_.setWith` to customize + * `path` creation. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 3.7.0 + * @category Object + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @returns {Object} Returns `object`. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.set(object, 'a[0].b.c', 4); + * console.log(object.a[0].b.c); + * // => 4 + * + * _.set(object, ['x', '0', 'y', 'z'], 5); + * console.log(object.x[0].y.z); + * // => 5 + */ + function set(object, path, value) { + return object == null ? object : baseSet(object, path, value); + } + + /** + * This method is like `_.set` except that it accepts `customizer` which is + * invoked to produce the objects of `path`. If `customizer` returns `undefined` + * path creation is handled by the method instead. The `customizer` is invoked + * with three arguments: (nsValue, key, nsObject). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @param {Function} [customizer] The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * var object = {}; + * + * _.setWith(object, '[0][1]', 'a', Object); + * // => { '0': { '1': 'a' } } + */ + function setWith(object, path, value, customizer) { + customizer = typeof customizer == 'function' ? customizer : undefined; + return object == null ? object : baseSet(object, path, value, customizer); + } + + /** + * Creates an array of own enumerable string keyed-value pairs for `object` + * which can be consumed by `_.fromPairs`. If `object` is a map or set, its + * entries are returned. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias entries + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the key-value pairs. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.toPairs(new Foo); + * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed) + */ + var toPairs = createToPairs(keys); + + /** + * Creates an array of own and inherited enumerable string keyed-value pairs + * for `object` which can be consumed by `_.fromPairs`. If `object` is a map + * or set, its entries are returned. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias entriesIn + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the key-value pairs. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.toPairsIn(new Foo); + * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed) + */ + var toPairsIn = createToPairs(keysIn); + + /** + * An alternative to `_.reduce`; this method transforms `object` to a new + * `accumulator` object which is the result of running each of its own + * enumerable string keyed properties thru `iteratee`, with each invocation + * potentially mutating the `accumulator` object. If `accumulator` is not + * provided, a new object with the same `[[Prototype]]` will be used. The + * iteratee is invoked with four arguments: (accumulator, value, key, object). + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * @static + * @memberOf _ + * @since 1.3.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The custom accumulator value. + * @returns {*} Returns the accumulated value. + * @example + * + * _.transform([2, 3, 4], function(result, n) { + * result.push(n *= n); + * return n % 2 == 0; + * }, []); + * // => [4, 9] + * + * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { + * (result[value] || (result[value] = [])).push(key); + * }, {}); + * // => { '1': ['a', 'c'], '2': ['b'] } + */ + function transform(object, iteratee, accumulator) { + var isArr = isArray(object), + isArrLike = isArr || isBuffer(object) || isTypedArray(object); + + iteratee = getIteratee(iteratee, 4); + if (accumulator == null) { + var Ctor = object && object.constructor; + if (isArrLike) { + accumulator = isArr ? new Ctor : []; + } + else if (isObject(object)) { + accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {}; + } + else { + accumulator = {}; + } + } + (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) { + return iteratee(accumulator, value, index, object); + }); + return accumulator; + } + + /** + * Removes the property at `path` of `object`. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to unset. + * @returns {boolean} Returns `true` if the property is deleted, else `false`. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 7 } }] }; + * _.unset(object, 'a[0].b.c'); + * // => true + * + * console.log(object); + * // => { 'a': [{ 'b': {} }] }; + * + * _.unset(object, ['a', '0', 'b', 'c']); + * // => true + * + * console.log(object); + * // => { 'a': [{ 'b': {} }] }; + */ + function unset(object, path) { + return object == null ? true : baseUnset(object, path); + } + + /** + * This method is like `_.set` except that accepts `updater` to produce the + * value to set. Use `_.updateWith` to customize `path` creation. The `updater` + * is invoked with one argument: (value). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.6.0 + * @category Object + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {Function} updater The function to produce the updated value. + * @returns {Object} Returns `object`. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.update(object, 'a[0].b.c', function(n) { return n * n; }); + * console.log(object.a[0].b.c); + * // => 9 + * + * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; }); + * console.log(object.x[0].y.z); + * // => 0 + */ + function update(object, path, updater) { + return object == null ? object : baseUpdate(object, path, castFunction(updater)); + } + + /** + * This method is like `_.update` except that it accepts `customizer` which is + * invoked to produce the objects of `path`. If `customizer` returns `undefined` + * path creation is handled by the method instead. The `customizer` is invoked + * with three arguments: (nsValue, key, nsObject). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.6.0 + * @category Object + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {Function} updater The function to produce the updated value. + * @param {Function} [customizer] The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * var object = {}; + * + * _.updateWith(object, '[0][1]', _.constant('a'), Object); + * // => { '0': { '1': 'a' } } + */ + function updateWith(object, path, updater, customizer) { + customizer = typeof customizer == 'function' ? customizer : undefined; + return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer); + } + + /** + * Creates an array of the own enumerable string keyed property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ + function values(object) { + return object == null ? [] : baseValues(object, keys(object)); + } + + /** + * Creates an array of the own and inherited enumerable string keyed property + * values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.valuesIn(new Foo); + * // => [1, 2, 3] (iteration order is not guaranteed) + */ + function valuesIn(object) { + return object == null ? [] : baseValues(object, keysIn(object)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Clamps `number` within the inclusive `lower` and `upper` bounds. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Number + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + * @example + * + * _.clamp(-10, -5, 5); + * // => -5 + * + * _.clamp(10, -5, 5); + * // => 5 + */ + function clamp(number, lower, upper) { + if (upper === undefined) { + upper = lower; + lower = undefined; + } + if (upper !== undefined) { + upper = toNumber(upper); + upper = upper === upper ? upper : 0; + } + if (lower !== undefined) { + lower = toNumber(lower); + lower = lower === lower ? lower : 0; + } + return baseClamp(toNumber(number), lower, upper); + } + + /** + * Checks if `n` is between `start` and up to, but not including, `end`. If + * `end` is not specified, it's set to `start` with `start` then set to `0`. + * If `start` is greater than `end` the params are swapped to support + * negative ranges. + * + * @static + * @memberOf _ + * @since 3.3.0 + * @category Number + * @param {number} number The number to check. + * @param {number} [start=0] The start of the range. + * @param {number} end The end of the range. + * @returns {boolean} Returns `true` if `number` is in the range, else `false`. + * @see _.range, _.rangeRight + * @example + * + * _.inRange(3, 2, 4); + * // => true + * + * _.inRange(4, 8); + * // => true + * + * _.inRange(4, 2); + * // => false + * + * _.inRange(2, 2); + * // => false + * + * _.inRange(1.2, 2); + * // => true + * + * _.inRange(5.2, 4); + * // => false + * + * _.inRange(-3, -2, -6); + * // => true + */ + function inRange(number, start, end) { + start = toFinite(start); + if (end === undefined) { + end = start; + start = 0; + } else { + end = toFinite(end); + } + number = toNumber(number); + return baseInRange(number, start, end); + } + + /** + * Produces a random number between the inclusive `lower` and `upper` bounds. + * If only one argument is provided a number between `0` and the given number + * is returned. If `floating` is `true`, or either `lower` or `upper` are + * floats, a floating-point number is returned instead of an integer. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Number + * @param {number} [lower=0] The lower bound. + * @param {number} [upper=1] The upper bound. + * @param {boolean} [floating] Specify returning a floating-point number. + * @returns {number} Returns the random number. + * @example + * + * _.random(0, 5); + * // => an integer between 0 and 5 + * + * _.random(5); + * // => also an integer between 0 and 5 + * + * _.random(5, true); + * // => a floating-point number between 0 and 5 + * + * _.random(1.2, 5.2); + * // => a floating-point number between 1.2 and 5.2 + */ + function random(lower, upper, floating) { + if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { + upper = floating = undefined; + } + if (floating === undefined) { + if (typeof upper == 'boolean') { + floating = upper; + upper = undefined; + } + else if (typeof lower == 'boolean') { + floating = lower; + lower = undefined; + } + } + if (lower === undefined && upper === undefined) { + lower = 0; + upper = 1; + } + else { + lower = toFinite(lower); + if (upper === undefined) { + upper = lower; + lower = 0; + } else { + upper = toFinite(upper); + } + } + if (lower > upper) { + var temp = lower; + lower = upper; + upper = temp; + } + if (floating || lower % 1 || upper % 1) { + var rand = nativeRandom(); + return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); + } + return baseRandom(lower, upper); + } + + /*------------------------------------------------------------------------*/ + + /** + * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the camel cased string. + * @example + * + * _.camelCase('Foo Bar'); + * // => 'fooBar' + * + * _.camelCase('--foo-bar--'); + * // => 'fooBar' + * + * _.camelCase('__FOO_BAR__'); + * // => 'fooBar' + */ + var camelCase = createCompounder(function(result, word, index) { + word = word.toLowerCase(); + return result + (index ? capitalize(word) : word); + }); + + /** + * Converts the first character of `string` to upper case and the remaining + * to lower case. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to capitalize. + * @returns {string} Returns the capitalized string. + * @example + * + * _.capitalize('FRED'); + * // => 'Fred' + */ + function capitalize(string) { + return upperFirst(toString(string).toLowerCase()); + } + + /** + * Deburrs `string` by converting + * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table) + * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A) + * letters to basic Latin letters and removing + * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to deburr. + * @returns {string} Returns the deburred string. + * @example + * + * _.deburr('déjà vu'); + * // => 'deja vu' + */ + function deburr(string) { + string = toString(string); + return string && string.replace(reLatin, deburrLetter).replace(reComboMark, ''); + } + + /** + * Checks if `string` ends with the given target string. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to inspect. + * @param {string} [target] The string to search for. + * @param {number} [position=string.length] The position to search up to. + * @returns {boolean} Returns `true` if `string` ends with `target`, + * else `false`. + * @example + * + * _.endsWith('abc', 'c'); + * // => true + * + * _.endsWith('abc', 'b'); + * // => false + * + * _.endsWith('abc', 'b', 2); + * // => true + */ + function endsWith(string, target, position) { + string = toString(string); + target = baseToString(target); + + var length = string.length; + position = position === undefined + ? length + : baseClamp(toInteger(position), 0, length); + + var end = position; + position -= target.length; + return position >= 0 && string.slice(position, end) == target; + } + + /** + * Converts the characters "&", "<", ">", '"', and "'" in `string` to their + * corresponding HTML entities. + * + * **Note:** No other characters are escaped. To escape additional + * characters use a third-party library like [_he_](https://mths.be/he). + * + * Though the ">" character is escaped for symmetry, characters like + * ">" and "/" don't need escaping in HTML and have no special meaning + * unless they're part of a tag or unquoted attribute value. See + * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) + * (under "semi-related fun fact") for more details. + * + * When working with HTML you should always + * [quote attribute values](http://wonko.com/post/html-escaping) to reduce + * XSS vectors. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escape('fred, barney, & pebbles'); + * // => 'fred, barney, & pebbles' + */ + function escape(string) { + string = toString(string); + return (string && reHasUnescapedHtml.test(string)) + ? string.replace(reUnescapedHtml, escapeHtmlChar) + : string; + } + + /** + * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+", + * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escapeRegExp('[lodash](https://lodash.com/)'); + * // => '\[lodash\]\(https://lodash\.com/\)' + */ + function escapeRegExp(string) { + string = toString(string); + return (string && reHasRegExpChar.test(string)) + ? string.replace(reRegExpChar, '\\$&') + : string; + } + + /** + * Converts `string` to + * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the kebab cased string. + * @example + * + * _.kebabCase('Foo Bar'); + * // => 'foo-bar' + * + * _.kebabCase('fooBar'); + * // => 'foo-bar' + * + * _.kebabCase('__FOO_BAR__'); + * // => 'foo-bar' + */ + var kebabCase = createCompounder(function(result, word, index) { + return result + (index ? '-' : '') + word.toLowerCase(); + }); + + /** + * Converts `string`, as space separated words, to lower case. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the lower cased string. + * @example + * + * _.lowerCase('--Foo-Bar--'); + * // => 'foo bar' + * + * _.lowerCase('fooBar'); + * // => 'foo bar' + * + * _.lowerCase('__FOO_BAR__'); + * // => 'foo bar' + */ + var lowerCase = createCompounder(function(result, word, index) { + return result + (index ? ' ' : '') + word.toLowerCase(); + }); + + /** + * Converts the first character of `string` to lower case. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the converted string. + * @example + * + * _.lowerFirst('Fred'); + * // => 'fred' + * + * _.lowerFirst('FRED'); + * // => 'fRED' + */ + var lowerFirst = createCaseFirst('toLowerCase'); + + /** + * Pads `string` on the left and right sides if it's shorter than `length`. + * Padding characters are truncated if they can't be evenly divided by `length`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to pad. + * @param {number} [length=0] The padding length. + * @param {string} [chars=' '] The string used as padding. + * @returns {string} Returns the padded string. + * @example + * + * _.pad('abc', 8); + * // => ' abc ' + * + * _.pad('abc', 8, '_-'); + * // => '_-abc_-_' + * + * _.pad('abc', 3); + * // => 'abc' + */ + function pad(string, length, chars) { + string = toString(string); + length = toInteger(length); + + var strLength = length ? stringSize(string) : 0; + if (!length || strLength >= length) { + return string; + } + var mid = (length - strLength) / 2; + return ( + createPadding(nativeFloor(mid), chars) + + string + + createPadding(nativeCeil(mid), chars) + ); + } + + /** + * Pads `string` on the right side if it's shorter than `length`. Padding + * characters are truncated if they exceed `length`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category String + * @param {string} [string=''] The string to pad. + * @param {number} [length=0] The padding length. + * @param {string} [chars=' '] The string used as padding. + * @returns {string} Returns the padded string. + * @example + * + * _.padEnd('abc', 6); + * // => 'abc ' + * + * _.padEnd('abc', 6, '_-'); + * // => 'abc_-_' + * + * _.padEnd('abc', 3); + * // => 'abc' + */ + function padEnd(string, length, chars) { + string = toString(string); + length = toInteger(length); + + var strLength = length ? stringSize(string) : 0; + return (length && strLength < length) + ? (string + createPadding(length - strLength, chars)) + : string; + } + + /** + * Pads `string` on the left side if it's shorter than `length`. Padding + * characters are truncated if they exceed `length`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category String + * @param {string} [string=''] The string to pad. + * @param {number} [length=0] The padding length. + * @param {string} [chars=' '] The string used as padding. + * @returns {string} Returns the padded string. + * @example + * + * _.padStart('abc', 6); + * // => ' abc' + * + * _.padStart('abc', 6, '_-'); + * // => '_-_abc' + * + * _.padStart('abc', 3); + * // => 'abc' + */ + function padStart(string, length, chars) { + string = toString(string); + length = toInteger(length); + + var strLength = length ? stringSize(string) : 0; + return (length && strLength < length) + ? (createPadding(length - strLength, chars) + string) + : string; + } + + /** + * Converts `string` to an integer of the specified radix. If `radix` is + * `undefined` or `0`, a `radix` of `10` is used unless `value` is a + * hexadecimal, in which case a `radix` of `16` is used. + * + * **Note:** This method aligns with the + * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category String + * @param {string} string The string to convert. + * @param {number} [radix=10] The radix to interpret `value` by. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {number} Returns the converted integer. + * @example + * + * _.parseInt('08'); + * // => 8 + * + * _.map(['6', '08', '10'], _.parseInt); + * // => [6, 8, 10] + */ + function parseInt(string, radix, guard) { + if (guard || radix == null) { + radix = 0; + } else if (radix) { + radix = +radix; + } + return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0); + } + + /** + * Repeats the given string `n` times. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to repeat. + * @param {number} [n=1] The number of times to repeat the string. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {string} Returns the repeated string. + * @example + * + * _.repeat('*', 3); + * // => '***' + * + * _.repeat('abc', 2); + * // => 'abcabc' + * + * _.repeat('abc', 0); + * // => '' + */ + function repeat(string, n, guard) { + if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) { + n = 1; + } else { + n = toInteger(n); + } + return baseRepeat(toString(string), n); + } + + /** + * Replaces matches for `pattern` in `string` with `replacement`. + * + * **Note:** This method is based on + * [`String#replace`](https://mdn.io/String/replace). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category String + * @param {string} [string=''] The string to modify. + * @param {RegExp|string} pattern The pattern to replace. + * @param {Function|string} replacement The match replacement. + * @returns {string} Returns the modified string. + * @example + * + * _.replace('Hi Fred', 'Fred', 'Barney'); + * // => 'Hi Barney' + */ + function replace() { + var args = arguments, + string = toString(args[0]); + + return args.length < 3 ? string : string.replace(args[1], args[2]); + } + + /** + * Converts `string` to + * [snake case](https://en.wikipedia.org/wiki/Snake_case). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the snake cased string. + * @example + * + * _.snakeCase('Foo Bar'); + * // => 'foo_bar' + * + * _.snakeCase('fooBar'); + * // => 'foo_bar' + * + * _.snakeCase('--FOO-BAR--'); + * // => 'foo_bar' + */ + var snakeCase = createCompounder(function(result, word, index) { + return result + (index ? '_' : '') + word.toLowerCase(); + }); + + /** + * Splits `string` by `separator`. + * + * **Note:** This method is based on + * [`String#split`](https://mdn.io/String/split). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category String + * @param {string} [string=''] The string to split. + * @param {RegExp|string} separator The separator pattern to split by. + * @param {number} [limit] The length to truncate results to. + * @returns {Array} Returns the string segments. + * @example + * + * _.split('a-b-c', '-', 2); + * // => ['a', 'b'] + */ + function split(string, separator, limit) { + if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) { + separator = limit = undefined; + } + limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0; + if (!limit) { + return []; + } + string = toString(string); + if (string && ( + typeof separator == 'string' || + (separator != null && !isRegExp(separator)) + )) { + separator = baseToString(separator); + if (!separator && hasUnicode(string)) { + return castSlice(stringToArray(string), 0, limit); + } + } + return string.split(separator, limit); + } + + /** + * Converts `string` to + * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage). + * + * @static + * @memberOf _ + * @since 3.1.0 + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the start cased string. + * @example + * + * _.startCase('--foo-bar--'); + * // => 'Foo Bar' + * + * _.startCase('fooBar'); + * // => 'Foo Bar' + * + * _.startCase('__FOO_BAR__'); + * // => 'FOO BAR' + */ + var startCase = createCompounder(function(result, word, index) { + return result + (index ? ' ' : '') + upperFirst(word); + }); + + /** + * Checks if `string` starts with the given target string. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to inspect. + * @param {string} [target] The string to search for. + * @param {number} [position=0] The position to search from. + * @returns {boolean} Returns `true` if `string` starts with `target`, + * else `false`. + * @example + * + * _.startsWith('abc', 'a'); + * // => true + * + * _.startsWith('abc', 'b'); + * // => false + * + * _.startsWith('abc', 'b', 1); + * // => true + */ + function startsWith(string, target, position) { + string = toString(string); + position = position == null + ? 0 + : baseClamp(toInteger(position), 0, string.length); + + target = baseToString(target); + return string.slice(position, position + target.length) == target; + } + + /** + * Creates a compiled template function that can interpolate data properties + * in "interpolate" delimiters, HTML-escape interpolated data properties in + * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data + * properties may be accessed as free variables in the template. If a setting + * object is given, it takes precedence over `_.templateSettings` values. + * + * **Note:** In the development build `_.template` utilizes + * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl) + * for easier debugging. + * + * For more information on precompiling templates see + * [lodash's custom builds documentation](https://lodash.com/custom-builds). + * + * For more information on Chrome extension sandboxes see + * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval). + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category String + * @param {string} [string=''] The template string. + * @param {Object} [options={}] The options object. + * @param {RegExp} [options.escape=_.templateSettings.escape] + * The HTML "escape" delimiter. + * @param {RegExp} [options.evaluate=_.templateSettings.evaluate] + * The "evaluate" delimiter. + * @param {Object} [options.imports=_.templateSettings.imports] + * An object to import into the template as free variables. + * @param {RegExp} [options.interpolate=_.templateSettings.interpolate] + * The "interpolate" delimiter. + * @param {string} [options.sourceURL='lodash.templateSources[n]'] + * The sourceURL of the compiled template. + * @param {string} [options.variable='obj'] + * The data object variable name. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Function} Returns the compiled template function. + * @example + * + * // Use the "interpolate" delimiter to create a compiled template. + * var compiled = _.template('hello <%= user %>!'); + * compiled({ 'user': 'fred' }); + * // => 'hello fred!' + * + * // Use the HTML "escape" delimiter to escape data property values. + * var compiled = _.template('<%- value %>'); + * compiled({ 'value': ' -``` - -#### Babel - -[Babel](http://babeljs.io/) is a next generation JavaScript compiler. One of the features is the ability to use ES6/ES2015 modules now, even though browsers do not yet support this feature natively. - -```js -import $ from "jquery"; -``` - -#### Browserify/Webpack - -There are several ways to use [Browserify](http://browserify.org/) and [Webpack](https://webpack.github.io/). For more information on using these tools, please refer to the corresponding project's documention. In the script, including jQuery will usually look like this... - -```js -var $ = require("jquery"); -``` - -#### AMD (Asynchronous Module Definition) - -AMD is a module format built for the browser. For more information, we recommend [require.js' documentation](http://requirejs.org/docs/whyamd.html). - -```js -define(["jquery"], function($) { - -}); -``` - -### Node - -To include jQuery in [Node](nodejs.org), first install with npm. - -```sh -npm install jquery -``` - -For jQuery to work in Node, a window with a document is required. Since no such window exists natively in Node, one can be mocked by tools such as [jsdom](https://github.com/tmpvar/jsdom). This can be useful for testing purposes. - -```js -require("jsdom").env("", function(err, window) { - if (err) { - console.error(err); - return; - } - - var $ = require("jquery")(window); -}); -``` diff --git a/public/assets/vendor/jquery/bower.json b/public/assets/vendor/jquery/bower.json deleted file mode 100644 index 95798d5a..00000000 --- a/public/assets/vendor/jquery/bower.json +++ /dev/null @@ -1,14 +0,0 @@ -{ - "name": "jquery", - "main": "dist/jquery.js", - "license": "MIT", - "ignore": [ - "package.json" - ], - "keywords": [ - "jquery", - "javascript", - "browser", - "library" - ] -} \ No newline at end of file diff --git a/public/assets/vendor/jquery/dist/core.js b/public/assets/vendor/jquery/dist/core.js deleted file mode 100644 index 0e95274c..00000000 --- a/public/assets/vendor/jquery/dist/core.js +++ /dev/null @@ -1,476 +0,0 @@ -/* global Symbol */ -// Defining this global in .eslintrc.json would create a danger of using the global -// unguarded in another place, it seems safer to define global only for this module - -define( [ - "./var/arr", - "./var/document", - "./var/getProto", - "./var/slice", - "./var/concat", - "./var/push", - "./var/indexOf", - "./var/class2type", - "./var/toString", - "./var/hasOwn", - "./var/fnToString", - "./var/ObjectFunctionString", - "./var/support", - "./core/DOMEval" -], function( arr, document, getProto, slice, concat, push, indexOf, - class2type, toString, hasOwn, fnToString, ObjectFunctionString, - support, DOMEval ) { - -"use strict"; - -var - version = "3.2.1", - - // Define a local copy of jQuery - jQuery = function( selector, context ) { - - // The jQuery object is actually just the init constructor 'enhanced' - // Need init if jQuery is called (just allow error to be thrown if not included) - return new jQuery.fn.init( selector, context ); - }, - - // Support: Android <=4.0 only - // Make sure we trim BOM and NBSP - rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, - - // Matches dashed string for camelizing - rmsPrefix = /^-ms-/, - rdashAlpha = /-([a-z])/g, - - // Used by jQuery.camelCase as callback to replace() - fcamelCase = function( all, letter ) { - return letter.toUpperCase(); - }; - -jQuery.fn = jQuery.prototype = { - - // The current version of jQuery being used - jquery: version, - - constructor: jQuery, - - // The default length of a jQuery object is 0 - length: 0, - - toArray: function() { - return slice.call( this ); - }, - - // Get the Nth element in the matched element set OR - // Get the whole matched element set as a clean array - get: function( num ) { - - // Return all the elements in a clean array - if ( num == null ) { - return slice.call( this ); - } - - // Return just the one element from the set - return num < 0 ? this[ num + this.length ] : this[ num ]; - }, - - // Take an array of elements and push it onto the stack - // (returning the new matched element set) - pushStack: function( elems ) { - - // Build a new jQuery matched element set - var ret = jQuery.merge( this.constructor(), elems ); - - // Add the old object onto the stack (as a reference) - ret.prevObject = this; - - // Return the newly-formed element set - return ret; - }, - - // Execute a callback for every element in the matched set. - each: function( callback ) { - return jQuery.each( this, callback ); - }, - - map: function( callback ) { - return this.pushStack( jQuery.map( this, function( elem, i ) { - return callback.call( elem, i, elem ); - } ) ); - }, - - slice: function() { - return this.pushStack( slice.apply( this, arguments ) ); - }, - - first: function() { - return this.eq( 0 ); - }, - - last: function() { - return this.eq( -1 ); - }, - - eq: function( i ) { - var len = this.length, - j = +i + ( i < 0 ? len : 0 ); - return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] ); - }, - - end: function() { - return this.prevObject || this.constructor(); - }, - - // For internal use only. - // Behaves like an Array's method, not like a jQuery method. - push: push, - sort: arr.sort, - splice: arr.splice -}; - -jQuery.extend = jQuery.fn.extend = function() { - var options, name, src, copy, copyIsArray, clone, - target = arguments[ 0 ] || {}, - i = 1, - length = arguments.length, - deep = false; - - // Handle a deep copy situation - if ( typeof target === "boolean" ) { - deep = target; - - // Skip the boolean and the target - target = arguments[ i ] || {}; - i++; - } - - // Handle case when target is a string or something (possible in deep copy) - if ( typeof target !== "object" && !jQuery.isFunction( target ) ) { - target = {}; - } - - // Extend jQuery itself if only one argument is passed - if ( i === length ) { - target = this; - i--; - } - - for ( ; i < length; i++ ) { - - // Only deal with non-null/undefined values - if ( ( options = arguments[ i ] ) != null ) { - - // Extend the base object - for ( name in options ) { - src = target[ name ]; - copy = options[ name ]; - - // Prevent never-ending loop - if ( target === copy ) { - continue; - } - - // Recurse if we're merging plain objects or arrays - if ( deep && copy && ( jQuery.isPlainObject( copy ) || - ( copyIsArray = Array.isArray( copy ) ) ) ) { - - if ( copyIsArray ) { - copyIsArray = false; - clone = src && Array.isArray( src ) ? src : []; - - } else { - clone = src && jQuery.isPlainObject( src ) ? src : {}; - } - - // Never move original objects, clone them - target[ name ] = jQuery.extend( deep, clone, copy ); - - // Don't bring in undefined values - } else if ( copy !== undefined ) { - target[ name ] = copy; - } - } - } - } - - // Return the modified object - return target; -}; - -jQuery.extend( { - - // Unique for each copy of jQuery on the page - expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ), - - // Assume jQuery is ready without the ready module - isReady: true, - - error: function( msg ) { - throw new Error( msg ); - }, - - noop: function() {}, - - isFunction: function( obj ) { - return jQuery.type( obj ) === "function"; - }, - - isWindow: function( obj ) { - return obj != null && obj === obj.window; - }, - - isNumeric: function( obj ) { - - // As of jQuery 3.0, isNumeric is limited to - // strings and numbers (primitives or objects) - // that can be coerced to finite numbers (gh-2662) - var type = jQuery.type( obj ); - return ( type === "number" || type === "string" ) && - - // parseFloat NaNs numeric-cast false positives ("") - // ...but misinterprets leading-number strings, particularly hex literals ("0x...") - // subtraction forces infinities to NaN - !isNaN( obj - parseFloat( obj ) ); - }, - - isPlainObject: function( obj ) { - var proto, Ctor; - - // Detect obvious negatives - // Use toString instead of jQuery.type to catch host objects - if ( !obj || toString.call( obj ) !== "[object Object]" ) { - return false; - } - - proto = getProto( obj ); - - // Objects with no prototype (e.g., `Object.create( null )`) are plain - if ( !proto ) { - return true; - } - - // Objects with prototype are plain iff they were constructed by a global Object function - Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor; - return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString; - }, - - isEmptyObject: function( obj ) { - - /* eslint-disable no-unused-vars */ - // See https://github.com/eslint/eslint/issues/6125 - var name; - - for ( name in obj ) { - return false; - } - return true; - }, - - type: function( obj ) { - if ( obj == null ) { - return obj + ""; - } - - // Support: Android <=2.3 only (functionish RegExp) - return typeof obj === "object" || typeof obj === "function" ? - class2type[ toString.call( obj ) ] || "object" : - typeof obj; - }, - - // Evaluates a script in a global context - globalEval: function( code ) { - DOMEval( code ); - }, - - // Convert dashed to camelCase; used by the css and data modules - // Support: IE <=9 - 11, Edge 12 - 13 - // Microsoft forgot to hump their vendor prefix (#9572) - camelCase: function( string ) { - return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase ); - }, - - each: function( obj, callback ) { - var length, i = 0; - - if ( isArrayLike( obj ) ) { - length = obj.length; - for ( ; i < length; i++ ) { - if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { - break; - } - } - } else { - for ( i in obj ) { - if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { - break; - } - } - } - - return obj; - }, - - // Support: Android <=4.0 only - trim: function( text ) { - return text == null ? - "" : - ( text + "" ).replace( rtrim, "" ); - }, - - // results is for internal usage only - makeArray: function( arr, results ) { - var ret = results || []; - - if ( arr != null ) { - if ( isArrayLike( Object( arr ) ) ) { - jQuery.merge( ret, - typeof arr === "string" ? - [ arr ] : arr - ); - } else { - push.call( ret, arr ); - } - } - - return ret; - }, - - inArray: function( elem, arr, i ) { - return arr == null ? -1 : indexOf.call( arr, elem, i ); - }, - - // Support: Android <=4.0 only, PhantomJS 1 only - // push.apply(_, arraylike) throws on ancient WebKit - merge: function( first, second ) { - var len = +second.length, - j = 0, - i = first.length; - - for ( ; j < len; j++ ) { - first[ i++ ] = second[ j ]; - } - - first.length = i; - - return first; - }, - - grep: function( elems, callback, invert ) { - var callbackInverse, - matches = [], - i = 0, - length = elems.length, - callbackExpect = !invert; - - // Go through the array, only saving the items - // that pass the validator function - for ( ; i < length; i++ ) { - callbackInverse = !callback( elems[ i ], i ); - if ( callbackInverse !== callbackExpect ) { - matches.push( elems[ i ] ); - } - } - - return matches; - }, - - // arg is for internal usage only - map: function( elems, callback, arg ) { - var length, value, - i = 0, - ret = []; - - // Go through the array, translating each of the items to their new values - if ( isArrayLike( elems ) ) { - length = elems.length; - for ( ; i < length; i++ ) { - value = callback( elems[ i ], i, arg ); - - if ( value != null ) { - ret.push( value ); - } - } - - // Go through every key on the object, - } else { - for ( i in elems ) { - value = callback( elems[ i ], i, arg ); - - if ( value != null ) { - ret.push( value ); - } - } - } - - // Flatten any nested arrays - return concat.apply( [], ret ); - }, - - // A global GUID counter for objects - guid: 1, - - // Bind a function to a context, optionally partially applying any - // arguments. - proxy: function( fn, context ) { - var tmp, args, proxy; - - if ( typeof context === "string" ) { - tmp = fn[ context ]; - context = fn; - fn = tmp; - } - - // Quick check to determine if target is callable, in the spec - // this throws a TypeError, but we will just return undefined. - if ( !jQuery.isFunction( fn ) ) { - return undefined; - } - - // Simulated bind - args = slice.call( arguments, 2 ); - proxy = function() { - return fn.apply( context || this, args.concat( slice.call( arguments ) ) ); - }; - - // Set the guid of unique handler to the same of original handler, so it can be removed - proxy.guid = fn.guid = fn.guid || jQuery.guid++; - - return proxy; - }, - - now: Date.now, - - // jQuery.support is not used in Core but other projects attach their - // properties to it so it needs to exist. - support: support -} ); - -if ( typeof Symbol === "function" ) { - jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ]; -} - -// Populate the class2type map -jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ), -function( i, name ) { - class2type[ "[object " + name + "]" ] = name.toLowerCase(); -} ); - -function isArrayLike( obj ) { - - // Support: real iOS 8.2 only (not reproducible in simulator) - // `in` check used to prevent JIT error (gh-2145) - // hasOwn isn't used here due to false negatives - // regarding Nodelist length in IE - var length = !!obj && "length" in obj && obj.length, - type = jQuery.type( obj ); - - if ( type === "function" || jQuery.isWindow( obj ) ) { - return false; - } - - return type === "array" || length === 0 || - typeof length === "number" && length > 0 && ( length - 1 ) in obj; -} - -return jQuery; -} ); diff --git a/public/assets/vendor/jquery/dist/jquery.js b/public/assets/vendor/jquery/dist/jquery.js deleted file mode 100644 index d2d8ca47..00000000 --- a/public/assets/vendor/jquery/dist/jquery.js +++ /dev/null @@ -1,10253 +0,0 @@ -/*! - * jQuery JavaScript Library v3.2.1 - * https://jquery.com/ - * - * Includes Sizzle.js - * https://sizzlejs.com/ - * - * Copyright JS Foundation and other contributors - * Released under the MIT license - * https://jquery.org/license - * - * Date: 2017-03-20T18:59Z - */ -( function( global, factory ) { - - "use strict"; - - if ( typeof module === "object" && typeof module.exports === "object" ) { - - // For CommonJS and CommonJS-like environments where a proper `window` - // is present, execute the factory and get jQuery. - // For environments that do not have a `window` with a `document` - // (such as Node.js), expose a factory as module.exports. - // This accentuates the need for the creation of a real `window`. - // e.g. var jQuery = require("jquery")(window); - // See ticket #14549 for more info. - module.exports = global.document ? - factory( global, true ) : - function( w ) { - if ( !w.document ) { - throw new Error( "jQuery requires a window with a document" ); - } - return factory( w ); - }; - } else { - factory( global ); - } - -// Pass this if window is not defined yet -} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) { - -// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1 -// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode -// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common -// enough that all such attempts are guarded in a try block. -"use strict"; - -var arr = []; - -var document = window.document; - -var getProto = Object.getPrototypeOf; - -var slice = arr.slice; - -var concat = arr.concat; - -var push = arr.push; - -var indexOf = arr.indexOf; - -var class2type = {}; - -var toString = class2type.toString; - -var hasOwn = class2type.hasOwnProperty; - -var fnToString = hasOwn.toString; - -var ObjectFunctionString = fnToString.call( Object ); - -var support = {}; - - - - function DOMEval( code, doc ) { - doc = doc || document; - - var script = doc.createElement( "script" ); - - script.text = code; - doc.head.appendChild( script ).parentNode.removeChild( script ); - } -/* global Symbol */ -// Defining this global in .eslintrc.json would create a danger of using the global -// unguarded in another place, it seems safer to define global only for this module - - - -var - version = "3.2.1", - - // Define a local copy of jQuery - jQuery = function( selector, context ) { - - // The jQuery object is actually just the init constructor 'enhanced' - // Need init if jQuery is called (just allow error to be thrown if not included) - return new jQuery.fn.init( selector, context ); - }, - - // Support: Android <=4.0 only - // Make sure we trim BOM and NBSP - rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, - - // Matches dashed string for camelizing - rmsPrefix = /^-ms-/, - rdashAlpha = /-([a-z])/g, - - // Used by jQuery.camelCase as callback to replace() - fcamelCase = function( all, letter ) { - return letter.toUpperCase(); - }; - -jQuery.fn = jQuery.prototype = { - - // The current version of jQuery being used - jquery: version, - - constructor: jQuery, - - // The default length of a jQuery object is 0 - length: 0, - - toArray: function() { - return slice.call( this ); - }, - - // Get the Nth element in the matched element set OR - // Get the whole matched element set as a clean array - get: function( num ) { - - // Return all the elements in a clean array - if ( num == null ) { - return slice.call( this ); - } - - // Return just the one element from the set - return num < 0 ? this[ num + this.length ] : this[ num ]; - }, - - // Take an array of elements and push it onto the stack - // (returning the new matched element set) - pushStack: function( elems ) { - - // Build a new jQuery matched element set - var ret = jQuery.merge( this.constructor(), elems ); - - // Add the old object onto the stack (as a reference) - ret.prevObject = this; - - // Return the newly-formed element set - return ret; - }, - - // Execute a callback for every element in the matched set. - each: function( callback ) { - return jQuery.each( this, callback ); - }, - - map: function( callback ) { - return this.pushStack( jQuery.map( this, function( elem, i ) { - return callback.call( elem, i, elem ); - } ) ); - }, - - slice: function() { - return this.pushStack( slice.apply( this, arguments ) ); - }, - - first: function() { - return this.eq( 0 ); - }, - - last: function() { - return this.eq( -1 ); - }, - - eq: function( i ) { - var len = this.length, - j = +i + ( i < 0 ? len : 0 ); - return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] ); - }, - - end: function() { - return this.prevObject || this.constructor(); - }, - - // For internal use only. - // Behaves like an Array's method, not like a jQuery method. - push: push, - sort: arr.sort, - splice: arr.splice -}; - -jQuery.extend = jQuery.fn.extend = function() { - var options, name, src, copy, copyIsArray, clone, - target = arguments[ 0 ] || {}, - i = 1, - length = arguments.length, - deep = false; - - // Handle a deep copy situation - if ( typeof target === "boolean" ) { - deep = target; - - // Skip the boolean and the target - target = arguments[ i ] || {}; - i++; - } - - // Handle case when target is a string or something (possible in deep copy) - if ( typeof target !== "object" && !jQuery.isFunction( target ) ) { - target = {}; - } - - // Extend jQuery itself if only one argument is passed - if ( i === length ) { - target = this; - i--; - } - - for ( ; i < length; i++ ) { - - // Only deal with non-null/undefined values - if ( ( options = arguments[ i ] ) != null ) { - - // Extend the base object - for ( name in options ) { - src = target[ name ]; - copy = options[ name ]; - - // Prevent never-ending loop - if ( target === copy ) { - continue; - } - - // Recurse if we're merging plain objects or arrays - if ( deep && copy && ( jQuery.isPlainObject( copy ) || - ( copyIsArray = Array.isArray( copy ) ) ) ) { - - if ( copyIsArray ) { - copyIsArray = false; - clone = src && Array.isArray( src ) ? src : []; - - } else { - clone = src && jQuery.isPlainObject( src ) ? src : {}; - } - - // Never move original objects, clone them - target[ name ] = jQuery.extend( deep, clone, copy ); - - // Don't bring in undefined values - } else if ( copy !== undefined ) { - target[ name ] = copy; - } - } - } - } - - // Return the modified object - return target; -}; - -jQuery.extend( { - - // Unique for each copy of jQuery on the page - expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ), - - // Assume jQuery is ready without the ready module - isReady: true, - - error: function( msg ) { - throw new Error( msg ); - }, - - noop: function() {}, - - isFunction: function( obj ) { - return jQuery.type( obj ) === "function"; - }, - - isWindow: function( obj ) { - return obj != null && obj === obj.window; - }, - - isNumeric: function( obj ) { - - // As of jQuery 3.0, isNumeric is limited to - // strings and numbers (primitives or objects) - // that can be coerced to finite numbers (gh-2662) - var type = jQuery.type( obj ); - return ( type === "number" || type === "string" ) && - - // parseFloat NaNs numeric-cast false positives ("") - // ...but misinterprets leading-number strings, particularly hex literals ("0x...") - // subtraction forces infinities to NaN - !isNaN( obj - parseFloat( obj ) ); - }, - - isPlainObject: function( obj ) { - var proto, Ctor; - - // Detect obvious negatives - // Use toString instead of jQuery.type to catch host objects - if ( !obj || toString.call( obj ) !== "[object Object]" ) { - return false; - } - - proto = getProto( obj ); - - // Objects with no prototype (e.g., `Object.create( null )`) are plain - if ( !proto ) { - return true; - } - - // Objects with prototype are plain iff they were constructed by a global Object function - Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor; - return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString; - }, - - isEmptyObject: function( obj ) { - - /* eslint-disable no-unused-vars */ - // See https://github.com/eslint/eslint/issues/6125 - var name; - - for ( name in obj ) { - return false; - } - return true; - }, - - type: function( obj ) { - if ( obj == null ) { - return obj + ""; - } - - // Support: Android <=2.3 only (functionish RegExp) - return typeof obj === "object" || typeof obj === "function" ? - class2type[ toString.call( obj ) ] || "object" : - typeof obj; - }, - - // Evaluates a script in a global context - globalEval: function( code ) { - DOMEval( code ); - }, - - // Convert dashed to camelCase; used by the css and data modules - // Support: IE <=9 - 11, Edge 12 - 13 - // Microsoft forgot to hump their vendor prefix (#9572) - camelCase: function( string ) { - return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase ); - }, - - each: function( obj, callback ) { - var length, i = 0; - - if ( isArrayLike( obj ) ) { - length = obj.length; - for ( ; i < length; i++ ) { - if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { - break; - } - } - } else { - for ( i in obj ) { - if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { - break; - } - } - } - - return obj; - }, - - // Support: Android <=4.0 only - trim: function( text ) { - return text == null ? - "" : - ( text + "" ).replace( rtrim, "" ); - }, - - // results is for internal usage only - makeArray: function( arr, results ) { - var ret = results || []; - - if ( arr != null ) { - if ( isArrayLike( Object( arr ) ) ) { - jQuery.merge( ret, - typeof arr === "string" ? - [ arr ] : arr - ); - } else { - push.call( ret, arr ); - } - } - - return ret; - }, - - inArray: function( elem, arr, i ) { - return arr == null ? -1 : indexOf.call( arr, elem, i ); - }, - - // Support: Android <=4.0 only, PhantomJS 1 only - // push.apply(_, arraylike) throws on ancient WebKit - merge: function( first, second ) { - var len = +second.length, - j = 0, - i = first.length; - - for ( ; j < len; j++ ) { - first[ i++ ] = second[ j ]; - } - - first.length = i; - - return first; - }, - - grep: function( elems, callback, invert ) { - var callbackInverse, - matches = [], - i = 0, - length = elems.length, - callbackExpect = !invert; - - // Go through the array, only saving the items - // that pass the validator function - for ( ; i < length; i++ ) { - callbackInverse = !callback( elems[ i ], i ); - if ( callbackInverse !== callbackExpect ) { - matches.push( elems[ i ] ); - } - } - - return matches; - }, - - // arg is for internal usage only - map: function( elems, callback, arg ) { - var length, value, - i = 0, - ret = []; - - // Go through the array, translating each of the items to their new values - if ( isArrayLike( elems ) ) { - length = elems.length; - for ( ; i < length; i++ ) { - value = callback( elems[ i ], i, arg ); - - if ( value != null ) { - ret.push( value ); - } - } - - // Go through every key on the object, - } else { - for ( i in elems ) { - value = callback( elems[ i ], i, arg ); - - if ( value != null ) { - ret.push( value ); - } - } - } - - // Flatten any nested arrays - return concat.apply( [], ret ); - }, - - // A global GUID counter for objects - guid: 1, - - // Bind a function to a context, optionally partially applying any - // arguments. - proxy: function( fn, context ) { - var tmp, args, proxy; - - if ( typeof context === "string" ) { - tmp = fn[ context ]; - context = fn; - fn = tmp; - } - - // Quick check to determine if target is callable, in the spec - // this throws a TypeError, but we will just return undefined. - if ( !jQuery.isFunction( fn ) ) { - return undefined; - } - - // Simulated bind - args = slice.call( arguments, 2 ); - proxy = function() { - return fn.apply( context || this, args.concat( slice.call( arguments ) ) ); - }; - - // Set the guid of unique handler to the same of original handler, so it can be removed - proxy.guid = fn.guid = fn.guid || jQuery.guid++; - - return proxy; - }, - - now: Date.now, - - // jQuery.support is not used in Core but other projects attach their - // properties to it so it needs to exist. - support: support -} ); - -if ( typeof Symbol === "function" ) { - jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ]; -} - -// Populate the class2type map -jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ), -function( i, name ) { - class2type[ "[object " + name + "]" ] = name.toLowerCase(); -} ); - -function isArrayLike( obj ) { - - // Support: real iOS 8.2 only (not reproducible in simulator) - // `in` check used to prevent JIT error (gh-2145) - // hasOwn isn't used here due to false negatives - // regarding Nodelist length in IE - var length = !!obj && "length" in obj && obj.length, - type = jQuery.type( obj ); - - if ( type === "function" || jQuery.isWindow( obj ) ) { - return false; - } - - return type === "array" || length === 0 || - typeof length === "number" && length > 0 && ( length - 1 ) in obj; -} -var Sizzle = -/*! - * Sizzle CSS Selector Engine v2.3.3 - * https://sizzlejs.com/ - * - * Copyright jQuery Foundation and other contributors - * Released under the MIT license - * http://jquery.org/license - * - * Date: 2016-08-08 - */ -(function( window ) { - -var i, - support, - Expr, - getText, - isXML, - tokenize, - compile, - select, - outermostContext, - sortInput, - hasDuplicate, - - // Local document vars - setDocument, - document, - docElem, - documentIsHTML, - rbuggyQSA, - rbuggyMatches, - matches, - contains, - - // Instance-specific data - expando = "sizzle" + 1 * new Date(), - preferredDoc = window.document, - dirruns = 0, - done = 0, - classCache = createCache(), - tokenCache = createCache(), - compilerCache = createCache(), - sortOrder = function( a, b ) { - if ( a === b ) { - hasDuplicate = true; - } - return 0; - }, - - // Instance methods - hasOwn = ({}).hasOwnProperty, - arr = [], - pop = arr.pop, - push_native = arr.push, - push = arr.push, - slice = arr.slice, - // Use a stripped-down indexOf as it's faster than native - // https://jsperf.com/thor-indexof-vs-for/5 - indexOf = function( list, elem ) { - var i = 0, - len = list.length; - for ( ; i < len; i++ ) { - if ( list[i] === elem ) { - return i; - } - } - return -1; - }, - - booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped", - - // Regular expressions - - // http://www.w3.org/TR/css3-selectors/#whitespace - whitespace = "[\\x20\\t\\r\\n\\f]", - - // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier - identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+", - - // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors - attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace + - // Operator (capture 2) - "*([*^$|!~]?=)" + whitespace + - // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]" - "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace + - "*\\]", - - pseudos = ":(" + identifier + ")(?:\\((" + - // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments: - // 1. quoted (capture 3; capture 4 or capture 5) - "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" + - // 2. simple (capture 6) - "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" + - // 3. anything else (capture 2) - ".*" + - ")\\)|)", - - // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter - rwhitespace = new RegExp( whitespace + "+", "g" ), - rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ), - - rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ), - rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ), - - rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ), - - rpseudo = new RegExp( pseudos ), - ridentifier = new RegExp( "^" + identifier + "$" ), - - matchExpr = { - "ID": new RegExp( "^#(" + identifier + ")" ), - "CLASS": new RegExp( "^\\.(" + identifier + ")" ), - "TAG": new RegExp( "^(" + identifier + "|[*])" ), - "ATTR": new RegExp( "^" + attributes ), - "PSEUDO": new RegExp( "^" + pseudos ), - "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace + - "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace + - "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), - "bool": new RegExp( "^(?:" + booleans + ")$", "i" ), - // For use in libraries implementing .is() - // We use this for POS matching in `select` - "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + - whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) - }, - - rinputs = /^(?:input|select|textarea|button)$/i, - rheader = /^h\d$/i, - - rnative = /^[^{]+\{\s*\[native \w/, - - // Easily-parseable/retrievable ID or TAG or CLASS selectors - rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/, - - rsibling = /[+~]/, - - // CSS escapes - // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters - runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ), - funescape = function( _, escaped, escapedWhitespace ) { - var high = "0x" + escaped - 0x10000; - // NaN means non-codepoint - // Support: Firefox<24 - // Workaround erroneous numeric interpretation of +"0x" - return high !== high || escapedWhitespace ? - escaped : - high < 0 ? - // BMP codepoint - String.fromCharCode( high + 0x10000 ) : - // Supplemental Plane codepoint (surrogate pair) - String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 ); - }, - - // CSS string/identifier serialization - // https://drafts.csswg.org/cssom/#common-serializing-idioms - rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g, - fcssescape = function( ch, asCodePoint ) { - if ( asCodePoint ) { - - // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER - if ( ch === "\0" ) { - return "\uFFFD"; - } - - // Control characters and (dependent upon position) numbers get escaped as code points - return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " "; - } - - // Other potentially-special ASCII characters get backslash-escaped - return "\\" + ch; - }, - - // Used for iframes - // See setDocument() - // Removing the function wrapper causes a "Permission Denied" - // error in IE - unloadHandler = function() { - setDocument(); - }, - - disabledAncestor = addCombinator( - function( elem ) { - return elem.disabled === true && ("form" in elem || "label" in elem); - }, - { dir: "parentNode", next: "legend" } - ); - -// Optimize for push.apply( _, NodeList ) -try { - push.apply( - (arr = slice.call( preferredDoc.childNodes )), - preferredDoc.childNodes - ); - // Support: Android<4.0 - // Detect silently failing push.apply - arr[ preferredDoc.childNodes.length ].nodeType; -} catch ( e ) { - push = { apply: arr.length ? - - // Leverage slice if possible - function( target, els ) { - push_native.apply( target, slice.call(els) ); - } : - - // Support: IE<9 - // Otherwise append directly - function( target, els ) { - var j = target.length, - i = 0; - // Can't trust NodeList.length - while ( (target[j++] = els[i++]) ) {} - target.length = j - 1; - } - }; -} - -function Sizzle( selector, context, results, seed ) { - var m, i, elem, nid, match, groups, newSelector, - newContext = context && context.ownerDocument, - - // nodeType defaults to 9, since context defaults to document - nodeType = context ? context.nodeType : 9; - - results = results || []; - - // Return early from calls with invalid selector or context - if ( typeof selector !== "string" || !selector || - nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) { - - return results; - } - - // Try to shortcut find operations (as opposed to filters) in HTML documents - if ( !seed ) { - - if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) { - setDocument( context ); - } - context = context || document; - - if ( documentIsHTML ) { - - // If the selector is sufficiently simple, try using a "get*By*" DOM method - // (excepting DocumentFragment context, where the methods don't exist) - if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) { - - // ID selector - if ( (m = match[1]) ) { - - // Document context - if ( nodeType === 9 ) { - if ( (elem = context.getElementById( m )) ) { - - // Support: IE, Opera, Webkit - // TODO: identify versions - // getElementById can match elements by name instead of ID - if ( elem.id === m ) { - results.push( elem ); - return results; - } - } else { - return results; - } - - // Element context - } else { - - // Support: IE, Opera, Webkit - // TODO: identify versions - // getElementById can match elements by name instead of ID - if ( newContext && (elem = newContext.getElementById( m )) && - contains( context, elem ) && - elem.id === m ) { - - results.push( elem ); - return results; - } - } - - // Type selector - } else if ( match[2] ) { - push.apply( results, context.getElementsByTagName( selector ) ); - return results; - - // Class selector - } else if ( (m = match[3]) && support.getElementsByClassName && - context.getElementsByClassName ) { - - push.apply( results, context.getElementsByClassName( m ) ); - return results; - } - } - - // Take advantage of querySelectorAll - if ( support.qsa && - !compilerCache[ selector + " " ] && - (!rbuggyQSA || !rbuggyQSA.test( selector )) ) { - - if ( nodeType !== 1 ) { - newContext = context; - newSelector = selector; - - // qSA looks outside Element context, which is not what we want - // Thanks to Andrew Dupont for this workaround technique - // Support: IE <=8 - // Exclude object elements - } else if ( context.nodeName.toLowerCase() !== "object" ) { - - // Capture the context ID, setting it first if necessary - if ( (nid = context.getAttribute( "id" )) ) { - nid = nid.replace( rcssescape, fcssescape ); - } else { - context.setAttribute( "id", (nid = expando) ); - } - - // Prefix every selector in the list - groups = tokenize( selector ); - i = groups.length; - while ( i-- ) { - groups[i] = "#" + nid + " " + toSelector( groups[i] ); - } - newSelector = groups.join( "," ); - - // Expand context for sibling selectors - newContext = rsibling.test( selector ) && testContext( context.parentNode ) || - context; - } - - if ( newSelector ) { - try { - push.apply( results, - newContext.querySelectorAll( newSelector ) - ); - return results; - } catch ( qsaError ) { - } finally { - if ( nid === expando ) { - context.removeAttribute( "id" ); - } - } - } - } - } - } - - // All others - return select( selector.replace( rtrim, "$1" ), context, results, seed ); -} - -/** - * Create key-value caches of limited size - * @returns {function(string, object)} Returns the Object data after storing it on itself with - * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength) - * deleting the oldest entry - */ -function createCache() { - var keys = []; - - function cache( key, value ) { - // Use (key + " ") to avoid collision with native prototype properties (see Issue #157) - if ( keys.push( key + " " ) > Expr.cacheLength ) { - // Only keep the most recent entries - delete cache[ keys.shift() ]; - } - return (cache[ key + " " ] = value); - } - return cache; -} - -/** - * Mark a function for special use by Sizzle - * @param {Function} fn The function to mark - */ -function markFunction( fn ) { - fn[ expando ] = true; - return fn; -} - -/** - * Support testing using an element - * @param {Function} fn Passed the created element and returns a boolean result - */ -function assert( fn ) { - var el = document.createElement("fieldset"); - - try { - return !!fn( el ); - } catch (e) { - return false; - } finally { - // Remove from its parent by default - if ( el.parentNode ) { - el.parentNode.removeChild( el ); - } - // release memory in IE - el = null; - } -} - -/** - * Adds the same handler for all of the specified attrs - * @param {String} attrs Pipe-separated list of attributes - * @param {Function} handler The method that will be applied - */ -function addHandle( attrs, handler ) { - var arr = attrs.split("|"), - i = arr.length; - - while ( i-- ) { - Expr.attrHandle[ arr[i] ] = handler; - } -} - -/** - * Checks document order of two siblings - * @param {Element} a - * @param {Element} b - * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b - */ -function siblingCheck( a, b ) { - var cur = b && a, - diff = cur && a.nodeType === 1 && b.nodeType === 1 && - a.sourceIndex - b.sourceIndex; - - // Use IE sourceIndex if available on both nodes - if ( diff ) { - return diff; - } - - // Check if b follows a - if ( cur ) { - while ( (cur = cur.nextSibling) ) { - if ( cur === b ) { - return -1; - } - } - } - - return a ? 1 : -1; -} - -/** - * Returns a function to use in pseudos for input types - * @param {String} type - */ -function createInputPseudo( type ) { - return function( elem ) { - var name = elem.nodeName.toLowerCase(); - return name === "input" && elem.type === type; - }; -} - -/** - * Returns a function to use in pseudos for buttons - * @param {String} type - */ -function createButtonPseudo( type ) { - return function( elem ) { - var name = elem.nodeName.toLowerCase(); - return (name === "input" || name === "button") && elem.type === type; - }; -} - -/** - * Returns a function to use in pseudos for :enabled/:disabled - * @param {Boolean} disabled true for :disabled; false for :enabled - */ -function createDisabledPseudo( disabled ) { - - // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable - return function( elem ) { - - // Only certain elements can match :enabled or :disabled - // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled - // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled - if ( "form" in elem ) { - - // Check for inherited disabledness on relevant non-disabled elements: - // * listed form-associated elements in a disabled fieldset - // https://html.spec.whatwg.org/multipage/forms.html#category-listed - // https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled - // * option elements in a disabled optgroup - // https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled - // All such elements have a "form" property. - if ( elem.parentNode && elem.disabled === false ) { - - // Option elements defer to a parent optgroup if present - if ( "label" in elem ) { - if ( "label" in elem.parentNode ) { - return elem.parentNode.disabled === disabled; - } else { - return elem.disabled === disabled; - } - } - - // Support: IE 6 - 11 - // Use the isDisabled shortcut property to check for disabled fieldset ancestors - return elem.isDisabled === disabled || - - // Where there is no isDisabled, check manually - /* jshint -W018 */ - elem.isDisabled !== !disabled && - disabledAncestor( elem ) === disabled; - } - - return elem.disabled === disabled; - - // Try to winnow out elements that can't be disabled before trusting the disabled property. - // Some victims get caught in our net (label, legend, menu, track), but it shouldn't - // even exist on them, let alone have a boolean value. - } else if ( "label" in elem ) { - return elem.disabled === disabled; - } - - // Remaining elements are neither :enabled nor :disabled - return false; - }; -} - -/** - * Returns a function to use in pseudos for positionals - * @param {Function} fn - */ -function createPositionalPseudo( fn ) { - return markFunction(function( argument ) { - argument = +argument; - return markFunction(function( seed, matches ) { - var j, - matchIndexes = fn( [], seed.length, argument ), - i = matchIndexes.length; - - // Match elements found at the specified indexes - while ( i-- ) { - if ( seed[ (j = matchIndexes[i]) ] ) { - seed[j] = !(matches[j] = seed[j]); - } - } - }); - }); -} - -/** - * Checks a node for validity as a Sizzle context - * @param {Element|Object=} context - * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value - */ -function testContext( context ) { - return context && typeof context.getElementsByTagName !== "undefined" && context; -} - -// Expose support vars for convenience -support = Sizzle.support = {}; - -/** - * Detects XML nodes - * @param {Element|Object} elem An element or a document - * @returns {Boolean} True iff elem is a non-HTML XML node - */ -isXML = Sizzle.isXML = function( elem ) { - // documentElement is verified for cases where it doesn't yet exist - // (such as loading iframes in IE - #4833) - var documentElement = elem && (elem.ownerDocument || elem).documentElement; - return documentElement ? documentElement.nodeName !== "HTML" : false; -}; - -/** - * Sets document-related variables once based on the current document - * @param {Element|Object} [doc] An element or document object to use to set the document - * @returns {Object} Returns the current document - */ -setDocument = Sizzle.setDocument = function( node ) { - var hasCompare, subWindow, - doc = node ? node.ownerDocument || node : preferredDoc; - - // Return early if doc is invalid or already selected - if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) { - return document; - } - - // Update global variables - document = doc; - docElem = document.documentElement; - documentIsHTML = !isXML( document ); - - // Support: IE 9-11, Edge - // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936) - if ( preferredDoc !== document && - (subWindow = document.defaultView) && subWindow.top !== subWindow ) { - - // Support: IE 11, Edge - if ( subWindow.addEventListener ) { - subWindow.addEventListener( "unload", unloadHandler, false ); - - // Support: IE 9 - 10 only - } else if ( subWindow.attachEvent ) { - subWindow.attachEvent( "onunload", unloadHandler ); - } - } - - /* Attributes - ---------------------------------------------------------------------- */ - - // Support: IE<8 - // Verify that getAttribute really returns attributes and not properties - // (excepting IE8 booleans) - support.attributes = assert(function( el ) { - el.className = "i"; - return !el.getAttribute("className"); - }); - - /* getElement(s)By* - ---------------------------------------------------------------------- */ - - // Check if getElementsByTagName("*") returns only elements - support.getElementsByTagName = assert(function( el ) { - el.appendChild( document.createComment("") ); - return !el.getElementsByTagName("*").length; - }); - - // Support: IE<9 - support.getElementsByClassName = rnative.test( document.getElementsByClassName ); - - // Support: IE<10 - // Check if getElementById returns elements by name - // The broken getElementById methods don't pick up programmatically-set names, - // so use a roundabout getElementsByName test - support.getById = assert(function( el ) { - docElem.appendChild( el ).id = expando; - return !document.getElementsByName || !document.getElementsByName( expando ).length; - }); - - // ID filter and find - if ( support.getById ) { - Expr.filter["ID"] = function( id ) { - var attrId = id.replace( runescape, funescape ); - return function( elem ) { - return elem.getAttribute("id") === attrId; - }; - }; - Expr.find["ID"] = function( id, context ) { - if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { - var elem = context.getElementById( id ); - return elem ? [ elem ] : []; - } - }; - } else { - Expr.filter["ID"] = function( id ) { - var attrId = id.replace( runescape, funescape ); - return function( elem ) { - var node = typeof elem.getAttributeNode !== "undefined" && - elem.getAttributeNode("id"); - return node && node.value === attrId; - }; - }; - - // Support: IE 6 - 7 only - // getElementById is not reliable as a find shortcut - Expr.find["ID"] = function( id, context ) { - if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { - var node, i, elems, - elem = context.getElementById( id ); - - if ( elem ) { - - // Verify the id attribute - node = elem.getAttributeNode("id"); - if ( node && node.value === id ) { - return [ elem ]; - } - - // Fall back on getElementsByName - elems = context.getElementsByName( id ); - i = 0; - while ( (elem = elems[i++]) ) { - node = elem.getAttributeNode("id"); - if ( node && node.value === id ) { - return [ elem ]; - } - } - } - - return []; - } - }; - } - - // Tag - Expr.find["TAG"] = support.getElementsByTagName ? - function( tag, context ) { - if ( typeof context.getElementsByTagName !== "undefined" ) { - return context.getElementsByTagName( tag ); - - // DocumentFragment nodes don't have gEBTN - } else if ( support.qsa ) { - return context.querySelectorAll( tag ); - } - } : - - function( tag, context ) { - var elem, - tmp = [], - i = 0, - // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too - results = context.getElementsByTagName( tag ); - - // Filter out possible comments - if ( tag === "*" ) { - while ( (elem = results[i++]) ) { - if ( elem.nodeType === 1 ) { - tmp.push( elem ); - } - } - - return tmp; - } - return results; - }; - - // Class - Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) { - if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) { - return context.getElementsByClassName( className ); - } - }; - - /* QSA/matchesSelector - ---------------------------------------------------------------------- */ - - // QSA and matchesSelector support - - // matchesSelector(:active) reports false when true (IE9/Opera 11.5) - rbuggyMatches = []; - - // qSa(:focus) reports false when true (Chrome 21) - // We allow this because of a bug in IE8/9 that throws an error - // whenever `document.activeElement` is accessed on an iframe - // So, we allow :focus to pass through QSA all the time to avoid the IE error - // See https://bugs.jquery.com/ticket/13378 - rbuggyQSA = []; - - if ( (support.qsa = rnative.test( document.querySelectorAll )) ) { - // Build QSA regex - // Regex strategy adopted from Diego Perini - assert(function( el ) { - // Select is set to empty string on purpose - // This is to test IE's treatment of not explicitly - // setting a boolean content attribute, - // since its presence should be enough - // https://bugs.jquery.com/ticket/12359 - docElem.appendChild( el ).innerHTML = "" + - ""; - - // Support: IE8, Opera 11-12.16 - // Nothing should be selected when empty strings follow ^= or $= or *= - // The test attribute must be unknown in Opera but "safe" for WinRT - // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section - if ( el.querySelectorAll("[msallowcapture^='']").length ) { - rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" ); - } - - // Support: IE8 - // Boolean attributes and "value" are not treated correctly - if ( !el.querySelectorAll("[selected]").length ) { - rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" ); - } - - // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+ - if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) { - rbuggyQSA.push("~="); - } - - // Webkit/Opera - :checked should return selected option elements - // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked - // IE8 throws error here and will not see later tests - if ( !el.querySelectorAll(":checked").length ) { - rbuggyQSA.push(":checked"); - } - - // Support: Safari 8+, iOS 8+ - // https://bugs.webkit.org/show_bug.cgi?id=136851 - // In-page `selector#id sibling-combinator selector` fails - if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) { - rbuggyQSA.push(".#.+[+~]"); - } - }); - - assert(function( el ) { - el.innerHTML = "" + - ""; - - // Support: Windows 8 Native Apps - // The type and name attributes are restricted during .innerHTML assignment - var input = document.createElement("input"); - input.setAttribute( "type", "hidden" ); - el.appendChild( input ).setAttribute( "name", "D" ); - - // Support: IE8 - // Enforce case-sensitivity of name attribute - if ( el.querySelectorAll("[name=d]").length ) { - rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" ); - } - - // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled) - // IE8 throws error here and will not see later tests - if ( el.querySelectorAll(":enabled").length !== 2 ) { - rbuggyQSA.push( ":enabled", ":disabled" ); - } - - // Support: IE9-11+ - // IE's :disabled selector does not pick up the children of disabled fieldsets - docElem.appendChild( el ).disabled = true; - if ( el.querySelectorAll(":disabled").length !== 2 ) { - rbuggyQSA.push( ":enabled", ":disabled" ); - } - - // Opera 10-11 does not throw on post-comma invalid pseudos - el.querySelectorAll("*,:x"); - rbuggyQSA.push(",.*:"); - }); - } - - if ( (support.matchesSelector = rnative.test( (matches = docElem.matches || - docElem.webkitMatchesSelector || - docElem.mozMatchesSelector || - docElem.oMatchesSelector || - docElem.msMatchesSelector) )) ) { - - assert(function( el ) { - // Check to see if it's possible to do matchesSelector - // on a disconnected node (IE 9) - support.disconnectedMatch = matches.call( el, "*" ); - - // This should fail with an exception - // Gecko does not error, returns false instead - matches.call( el, "[s!='']:x" ); - rbuggyMatches.push( "!=", pseudos ); - }); - } - - rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") ); - rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") ); - - /* Contains - ---------------------------------------------------------------------- */ - hasCompare = rnative.test( docElem.compareDocumentPosition ); - - // Element contains another - // Purposefully self-exclusive - // As in, an element does not contain itself - contains = hasCompare || rnative.test( docElem.contains ) ? - function( a, b ) { - var adown = a.nodeType === 9 ? a.documentElement : a, - bup = b && b.parentNode; - return a === bup || !!( bup && bup.nodeType === 1 && ( - adown.contains ? - adown.contains( bup ) : - a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16 - )); - } : - function( a, b ) { - if ( b ) { - while ( (b = b.parentNode) ) { - if ( b === a ) { - return true; - } - } - } - return false; - }; - - /* Sorting - ---------------------------------------------------------------------- */ - - // Document order sorting - sortOrder = hasCompare ? - function( a, b ) { - - // Flag for duplicate removal - if ( a === b ) { - hasDuplicate = true; - return 0; - } - - // Sort on method existence if only one input has compareDocumentPosition - var compare = !a.compareDocumentPosition - !b.compareDocumentPosition; - if ( compare ) { - return compare; - } - - // Calculate position if both inputs belong to the same document - compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ? - a.compareDocumentPosition( b ) : - - // Otherwise we know they are disconnected - 1; - - // Disconnected nodes - if ( compare & 1 || - (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) { - - // Choose the first element that is related to our preferred document - if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) { - return -1; - } - if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) { - return 1; - } - - // Maintain original order - return sortInput ? - ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) : - 0; - } - - return compare & 4 ? -1 : 1; - } : - function( a, b ) { - // Exit early if the nodes are identical - if ( a === b ) { - hasDuplicate = true; - return 0; - } - - var cur, - i = 0, - aup = a.parentNode, - bup = b.parentNode, - ap = [ a ], - bp = [ b ]; - - // Parentless nodes are either documents or disconnected - if ( !aup || !bup ) { - return a === document ? -1 : - b === document ? 1 : - aup ? -1 : - bup ? 1 : - sortInput ? - ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) : - 0; - - // If the nodes are siblings, we can do a quick check - } else if ( aup === bup ) { - return siblingCheck( a, b ); - } - - // Otherwise we need full lists of their ancestors for comparison - cur = a; - while ( (cur = cur.parentNode) ) { - ap.unshift( cur ); - } - cur = b; - while ( (cur = cur.parentNode) ) { - bp.unshift( cur ); - } - - // Walk down the tree looking for a discrepancy - while ( ap[i] === bp[i] ) { - i++; - } - - return i ? - // Do a sibling check if the nodes have a common ancestor - siblingCheck( ap[i], bp[i] ) : - - // Otherwise nodes in our document sort first - ap[i] === preferredDoc ? -1 : - bp[i] === preferredDoc ? 1 : - 0; - }; - - return document; -}; - -Sizzle.matches = function( expr, elements ) { - return Sizzle( expr, null, null, elements ); -}; - -Sizzle.matchesSelector = function( elem, expr ) { - // Set document vars if needed - if ( ( elem.ownerDocument || elem ) !== document ) { - setDocument( elem ); - } - - // Make sure that attribute selectors are quoted - expr = expr.replace( rattributeQuotes, "='$1']" ); - - if ( support.matchesSelector && documentIsHTML && - !compilerCache[ expr + " " ] && - ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) && - ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) { - - try { - var ret = matches.call( elem, expr ); - - // IE 9's matchesSelector returns false on disconnected nodes - if ( ret || support.disconnectedMatch || - // As well, disconnected nodes are said to be in a document - // fragment in IE 9 - elem.document && elem.document.nodeType !== 11 ) { - return ret; - } - } catch (e) {} - } - - return Sizzle( expr, document, null, [ elem ] ).length > 0; -}; - -Sizzle.contains = function( context, elem ) { - // Set document vars if needed - if ( ( context.ownerDocument || context ) !== document ) { - setDocument( context ); - } - return contains( context, elem ); -}; - -Sizzle.attr = function( elem, name ) { - // Set document vars if needed - if ( ( elem.ownerDocument || elem ) !== document ) { - setDocument( elem ); - } - - var fn = Expr.attrHandle[ name.toLowerCase() ], - // Don't get fooled by Object.prototype properties (jQuery #13807) - val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ? - fn( elem, name, !documentIsHTML ) : - undefined; - - return val !== undefined ? - val : - support.attributes || !documentIsHTML ? - elem.getAttribute( name ) : - (val = elem.getAttributeNode(name)) && val.specified ? - val.value : - null; -}; - -Sizzle.escape = function( sel ) { - return (sel + "").replace( rcssescape, fcssescape ); -}; - -Sizzle.error = function( msg ) { - throw new Error( "Syntax error, unrecognized expression: " + msg ); -}; - -/** - * Document sorting and removing duplicates - * @param {ArrayLike} results - */ -Sizzle.uniqueSort = function( results ) { - var elem, - duplicates = [], - j = 0, - i = 0; - - // Unless we *know* we can detect duplicates, assume their presence - hasDuplicate = !support.detectDuplicates; - sortInput = !support.sortStable && results.slice( 0 ); - results.sort( sortOrder ); - - if ( hasDuplicate ) { - while ( (elem = results[i++]) ) { - if ( elem === results[ i ] ) { - j = duplicates.push( i ); - } - } - while ( j-- ) { - results.splice( duplicates[ j ], 1 ); - } - } - - // Clear input after sorting to release objects - // See https://github.com/jquery/sizzle/pull/225 - sortInput = null; - - return results; -}; - -/** - * Utility function for retrieving the text value of an array of DOM nodes - * @param {Array|Element} elem - */ -getText = Sizzle.getText = function( elem ) { - var node, - ret = "", - i = 0, - nodeType = elem.nodeType; - - if ( !nodeType ) { - // If no nodeType, this is expected to be an array - while ( (node = elem[i++]) ) { - // Do not traverse comment nodes - ret += getText( node ); - } - } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) { - // Use textContent for elements - // innerText usage removed for consistency of new lines (jQuery #11153) - if ( typeof elem.textContent === "string" ) { - return elem.textContent; - } else { - // Traverse its children - for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { - ret += getText( elem ); - } - } - } else if ( nodeType === 3 || nodeType === 4 ) { - return elem.nodeValue; - } - // Do not include comment or processing instruction nodes - - return ret; -}; - -Expr = Sizzle.selectors = { - - // Can be adjusted by the user - cacheLength: 50, - - createPseudo: markFunction, - - match: matchExpr, - - attrHandle: {}, - - find: {}, - - relative: { - ">": { dir: "parentNode", first: true }, - " ": { dir: "parentNode" }, - "+": { dir: "previousSibling", first: true }, - "~": { dir: "previousSibling" } - }, - - preFilter: { - "ATTR": function( match ) { - match[1] = match[1].replace( runescape, funescape ); - - // Move the given value to match[3] whether quoted or unquoted - match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape ); - - if ( match[2] === "~=" ) { - match[3] = " " + match[3] + " "; - } - - return match.slice( 0, 4 ); - }, - - "CHILD": function( match ) { - /* matches from matchExpr["CHILD"] - 1 type (only|nth|...) - 2 what (child|of-type) - 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...) - 4 xn-component of xn+y argument ([+-]?\d*n|) - 5 sign of xn-component - 6 x of xn-component - 7 sign of y-component - 8 y of y-component - */ - match[1] = match[1].toLowerCase(); - - if ( match[1].slice( 0, 3 ) === "nth" ) { - // nth-* requires argument - if ( !match[3] ) { - Sizzle.error( match[0] ); - } - - // numeric x and y parameters for Expr.filter.CHILD - // remember that false/true cast respectively to 0/1 - match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) ); - match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" ); - - // other types prohibit arguments - } else if ( match[3] ) { - Sizzle.error( match[0] ); - } - - return match; - }, - - "PSEUDO": function( match ) { - var excess, - unquoted = !match[6] && match[2]; - - if ( matchExpr["CHILD"].test( match[0] ) ) { - return null; - } - - // Accept quoted arguments as-is - if ( match[3] ) { - match[2] = match[4] || match[5] || ""; - - // Strip excess characters from unquoted arguments - } else if ( unquoted && rpseudo.test( unquoted ) && - // Get excess from tokenize (recursively) - (excess = tokenize( unquoted, true )) && - // advance to the next closing parenthesis - (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) { - - // excess is a negative index - match[0] = match[0].slice( 0, excess ); - match[2] = unquoted.slice( 0, excess ); - } - - // Return only captures needed by the pseudo filter method (type and argument) - return match.slice( 0, 3 ); - } - }, - - filter: { - - "TAG": function( nodeNameSelector ) { - var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase(); - return nodeNameSelector === "*" ? - function() { return true; } : - function( elem ) { - return elem.nodeName && elem.nodeName.toLowerCase() === nodeName; - }; - }, - - "CLASS": function( className ) { - var pattern = classCache[ className + " " ]; - - return pattern || - (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) && - classCache( className, function( elem ) { - return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" ); - }); - }, - - "ATTR": function( name, operator, check ) { - return function( elem ) { - var result = Sizzle.attr( elem, name ); - - if ( result == null ) { - return operator === "!="; - } - if ( !operator ) { - return true; - } - - result += ""; - - return operator === "=" ? result === check : - operator === "!=" ? result !== check : - operator === "^=" ? check && result.indexOf( check ) === 0 : - operator === "*=" ? check && result.indexOf( check ) > -1 : - operator === "$=" ? check && result.slice( -check.length ) === check : - operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 : - operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" : - false; - }; - }, - - "CHILD": function( type, what, argument, first, last ) { - var simple = type.slice( 0, 3 ) !== "nth", - forward = type.slice( -4 ) !== "last", - ofType = what === "of-type"; - - return first === 1 && last === 0 ? - - // Shortcut for :nth-*(n) - function( elem ) { - return !!elem.parentNode; - } : - - function( elem, context, xml ) { - var cache, uniqueCache, outerCache, node, nodeIndex, start, - dir = simple !== forward ? "nextSibling" : "previousSibling", - parent = elem.parentNode, - name = ofType && elem.nodeName.toLowerCase(), - useCache = !xml && !ofType, - diff = false; - - if ( parent ) { - - // :(first|last|only)-(child|of-type) - if ( simple ) { - while ( dir ) { - node = elem; - while ( (node = node[ dir ]) ) { - if ( ofType ? - node.nodeName.toLowerCase() === name : - node.nodeType === 1 ) { - - return false; - } - } - // Reverse direction for :only-* (if we haven't yet done so) - start = dir = type === "only" && !start && "nextSibling"; - } - return true; - } - - start = [ forward ? parent.firstChild : parent.lastChild ]; - - // non-xml :nth-child(...) stores cache data on `parent` - if ( forward && useCache ) { - - // Seek `elem` from a previously-cached index - - // ...in a gzip-friendly way - node = parent; - outerCache = node[ expando ] || (node[ expando ] = {}); - - // Support: IE <9 only - // Defend against cloned attroperties (jQuery gh-1709) - uniqueCache = outerCache[ node.uniqueID ] || - (outerCache[ node.uniqueID ] = {}); - - cache = uniqueCache[ type ] || []; - nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; - diff = nodeIndex && cache[ 2 ]; - node = nodeIndex && parent.childNodes[ nodeIndex ]; - - while ( (node = ++nodeIndex && node && node[ dir ] || - - // Fallback to seeking `elem` from the start - (diff = nodeIndex = 0) || start.pop()) ) { - - // When found, cache indexes on `parent` and break - if ( node.nodeType === 1 && ++diff && node === elem ) { - uniqueCache[ type ] = [ dirruns, nodeIndex, diff ]; - break; - } - } - - } else { - // Use previously-cached element index if available - if ( useCache ) { - // ...in a gzip-friendly way - node = elem; - outerCache = node[ expando ] || (node[ expando ] = {}); - - // Support: IE <9 only - // Defend against cloned attroperties (jQuery gh-1709) - uniqueCache = outerCache[ node.uniqueID ] || - (outerCache[ node.uniqueID ] = {}); - - cache = uniqueCache[ type ] || []; - nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; - diff = nodeIndex; - } - - // xml :nth-child(...) - // or :nth-last-child(...) or :nth(-last)?-of-type(...) - if ( diff === false ) { - // Use the same loop as above to seek `elem` from the start - while ( (node = ++nodeIndex && node && node[ dir ] || - (diff = nodeIndex = 0) || start.pop()) ) { - - if ( ( ofType ? - node.nodeName.toLowerCase() === name : - node.nodeType === 1 ) && - ++diff ) { - - // Cache the index of each encountered element - if ( useCache ) { - outerCache = node[ expando ] || (node[ expando ] = {}); - - // Support: IE <9 only - // Defend against cloned attroperties (jQuery gh-1709) - uniqueCache = outerCache[ node.uniqueID ] || - (outerCache[ node.uniqueID ] = {}); - - uniqueCache[ type ] = [ dirruns, diff ]; - } - - if ( node === elem ) { - break; - } - } - } - } - } - - // Incorporate the offset, then check against cycle size - diff -= last; - return diff === first || ( diff % first === 0 && diff / first >= 0 ); - } - }; - }, - - "PSEUDO": function( pseudo, argument ) { - // pseudo-class names are case-insensitive - // http://www.w3.org/TR/selectors/#pseudo-classes - // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters - // Remember that setFilters inherits from pseudos - var args, - fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] || - Sizzle.error( "unsupported pseudo: " + pseudo ); - - // The user may use createPseudo to indicate that - // arguments are needed to create the filter function - // just as Sizzle does - if ( fn[ expando ] ) { - return fn( argument ); - } - - // But maintain support for old signatures - if ( fn.length > 1 ) { - args = [ pseudo, pseudo, "", argument ]; - return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ? - markFunction(function( seed, matches ) { - var idx, - matched = fn( seed, argument ), - i = matched.length; - while ( i-- ) { - idx = indexOf( seed, matched[i] ); - seed[ idx ] = !( matches[ idx ] = matched[i] ); - } - }) : - function( elem ) { - return fn( elem, 0, args ); - }; - } - - return fn; - } - }, - - pseudos: { - // Potentially complex pseudos - "not": markFunction(function( selector ) { - // Trim the selector passed to compile - // to avoid treating leading and trailing - // spaces as combinators - var input = [], - results = [], - matcher = compile( selector.replace( rtrim, "$1" ) ); - - return matcher[ expando ] ? - markFunction(function( seed, matches, context, xml ) { - var elem, - unmatched = matcher( seed, null, xml, [] ), - i = seed.length; - - // Match elements unmatched by `matcher` - while ( i-- ) { - if ( (elem = unmatched[i]) ) { - seed[i] = !(matches[i] = elem); - } - } - }) : - function( elem, context, xml ) { - input[0] = elem; - matcher( input, null, xml, results ); - // Don't keep the element (issue #299) - input[0] = null; - return !results.pop(); - }; - }), - - "has": markFunction(function( selector ) { - return function( elem ) { - return Sizzle( selector, elem ).length > 0; - }; - }), - - "contains": markFunction(function( text ) { - text = text.replace( runescape, funescape ); - return function( elem ) { - return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1; - }; - }), - - // "Whether an element is represented by a :lang() selector - // is based solely on the element's language value - // being equal to the identifier C, - // or beginning with the identifier C immediately followed by "-". - // The matching of C against the element's language value is performed case-insensitively. - // The identifier C does not have to be a valid language name." - // http://www.w3.org/TR/selectors/#lang-pseudo - "lang": markFunction( function( lang ) { - // lang value must be a valid identifier - if ( !ridentifier.test(lang || "") ) { - Sizzle.error( "unsupported lang: " + lang ); - } - lang = lang.replace( runescape, funescape ).toLowerCase(); - return function( elem ) { - var elemLang; - do { - if ( (elemLang = documentIsHTML ? - elem.lang : - elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) { - - elemLang = elemLang.toLowerCase(); - return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0; - } - } while ( (elem = elem.parentNode) && elem.nodeType === 1 ); - return false; - }; - }), - - // Miscellaneous - "target": function( elem ) { - var hash = window.location && window.location.hash; - return hash && hash.slice( 1 ) === elem.id; - }, - - "root": function( elem ) { - return elem === docElem; - }, - - "focus": function( elem ) { - return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex); - }, - - // Boolean properties - "enabled": createDisabledPseudo( false ), - "disabled": createDisabledPseudo( true ), - - "checked": function( elem ) { - // In CSS3, :checked should return both checked and selected elements - // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked - var nodeName = elem.nodeName.toLowerCase(); - return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected); - }, - - "selected": function( elem ) { - // Accessing this property makes selected-by-default - // options in Safari work properly - if ( elem.parentNode ) { - elem.parentNode.selectedIndex; - } - - return elem.selected === true; - }, - - // Contents - "empty": function( elem ) { - // http://www.w3.org/TR/selectors/#empty-pseudo - // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5), - // but not by others (comment: 8; processing instruction: 7; etc.) - // nodeType < 6 works because attributes (2) do not appear as children - for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { - if ( elem.nodeType < 6 ) { - return false; - } - } - return true; - }, - - "parent": function( elem ) { - return !Expr.pseudos["empty"]( elem ); - }, - - // Element/input types - "header": function( elem ) { - return rheader.test( elem.nodeName ); - }, - - "input": function( elem ) { - return rinputs.test( elem.nodeName ); - }, - - "button": function( elem ) { - var name = elem.nodeName.toLowerCase(); - return name === "input" && elem.type === "button" || name === "button"; - }, - - "text": function( elem ) { - var attr; - return elem.nodeName.toLowerCase() === "input" && - elem.type === "text" && - - // Support: IE<8 - // New HTML5 attribute values (e.g., "search") appear with elem.type === "text" - ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" ); - }, - - // Position-in-collection - "first": createPositionalPseudo(function() { - return [ 0 ]; - }), - - "last": createPositionalPseudo(function( matchIndexes, length ) { - return [ length - 1 ]; - }), - - "eq": createPositionalPseudo(function( matchIndexes, length, argument ) { - return [ argument < 0 ? argument + length : argument ]; - }), - - "even": createPositionalPseudo(function( matchIndexes, length ) { - var i = 0; - for ( ; i < length; i += 2 ) { - matchIndexes.push( i ); - } - return matchIndexes; - }), - - "odd": createPositionalPseudo(function( matchIndexes, length ) { - var i = 1; - for ( ; i < length; i += 2 ) { - matchIndexes.push( i ); - } - return matchIndexes; - }), - - "lt": createPositionalPseudo(function( matchIndexes, length, argument ) { - var i = argument < 0 ? argument + length : argument; - for ( ; --i >= 0; ) { - matchIndexes.push( i ); - } - return matchIndexes; - }), - - "gt": createPositionalPseudo(function( matchIndexes, length, argument ) { - var i = argument < 0 ? argument + length : argument; - for ( ; ++i < length; ) { - matchIndexes.push( i ); - } - return matchIndexes; - }) - } -}; - -Expr.pseudos["nth"] = Expr.pseudos["eq"]; - -// Add button/input type pseudos -for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) { - Expr.pseudos[ i ] = createInputPseudo( i ); -} -for ( i in { submit: true, reset: true } ) { - Expr.pseudos[ i ] = createButtonPseudo( i ); -} - -// Easy API for creating new setFilters -function setFilters() {} -setFilters.prototype = Expr.filters = Expr.pseudos; -Expr.setFilters = new setFilters(); - -tokenize = Sizzle.tokenize = function( selector, parseOnly ) { - var matched, match, tokens, type, - soFar, groups, preFilters, - cached = tokenCache[ selector + " " ]; - - if ( cached ) { - return parseOnly ? 0 : cached.slice( 0 ); - } - - soFar = selector; - groups = []; - preFilters = Expr.preFilter; - - while ( soFar ) { - - // Comma and first run - if ( !matched || (match = rcomma.exec( soFar )) ) { - if ( match ) { - // Don't consume trailing commas as valid - soFar = soFar.slice( match[0].length ) || soFar; - } - groups.push( (tokens = []) ); - } - - matched = false; - - // Combinators - if ( (match = rcombinators.exec( soFar )) ) { - matched = match.shift(); - tokens.push({ - value: matched, - // Cast descendant combinators to space - type: match[0].replace( rtrim, " " ) - }); - soFar = soFar.slice( matched.length ); - } - - // Filters - for ( type in Expr.filter ) { - if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] || - (match = preFilters[ type ]( match ))) ) { - matched = match.shift(); - tokens.push({ - value: matched, - type: type, - matches: match - }); - soFar = soFar.slice( matched.length ); - } - } - - if ( !matched ) { - break; - } - } - - // Return the length of the invalid excess - // if we're just parsing - // Otherwise, throw an error or return tokens - return parseOnly ? - soFar.length : - soFar ? - Sizzle.error( selector ) : - // Cache the tokens - tokenCache( selector, groups ).slice( 0 ); -}; - -function toSelector( tokens ) { - var i = 0, - len = tokens.length, - selector = ""; - for ( ; i < len; i++ ) { - selector += tokens[i].value; - } - return selector; -} - -function addCombinator( matcher, combinator, base ) { - var dir = combinator.dir, - skip = combinator.next, - key = skip || dir, - checkNonElements = base && key === "parentNode", - doneName = done++; - - return combinator.first ? - // Check against closest ancestor/preceding element - function( elem, context, xml ) { - while ( (elem = elem[ dir ]) ) { - if ( elem.nodeType === 1 || checkNonElements ) { - return matcher( elem, context, xml ); - } - } - return false; - } : - - // Check against all ancestor/preceding elements - function( elem, context, xml ) { - var oldCache, uniqueCache, outerCache, - newCache = [ dirruns, doneName ]; - - // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching - if ( xml ) { - while ( (elem = elem[ dir ]) ) { - if ( elem.nodeType === 1 || checkNonElements ) { - if ( matcher( elem, context, xml ) ) { - return true; - } - } - } - } else { - while ( (elem = elem[ dir ]) ) { - if ( elem.nodeType === 1 || checkNonElements ) { - outerCache = elem[ expando ] || (elem[ expando ] = {}); - - // Support: IE <9 only - // Defend against cloned attroperties (jQuery gh-1709) - uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {}); - - if ( skip && skip === elem.nodeName.toLowerCase() ) { - elem = elem[ dir ] || elem; - } else if ( (oldCache = uniqueCache[ key ]) && - oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) { - - // Assign to newCache so results back-propagate to previous elements - return (newCache[ 2 ] = oldCache[ 2 ]); - } else { - // Reuse newcache so results back-propagate to previous elements - uniqueCache[ key ] = newCache; - - // A match means we're done; a fail means we have to keep checking - if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) { - return true; - } - } - } - } - } - return false; - }; -} - -function elementMatcher( matchers ) { - return matchers.length > 1 ? - function( elem, context, xml ) { - var i = matchers.length; - while ( i-- ) { - if ( !matchers[i]( elem, context, xml ) ) { - return false; - } - } - return true; - } : - matchers[0]; -} - -function multipleContexts( selector, contexts, results ) { - var i = 0, - len = contexts.length; - for ( ; i < len; i++ ) { - Sizzle( selector, contexts[i], results ); - } - return results; -} - -function condense( unmatched, map, filter, context, xml ) { - var elem, - newUnmatched = [], - i = 0, - len = unmatched.length, - mapped = map != null; - - for ( ; i < len; i++ ) { - if ( (elem = unmatched[i]) ) { - if ( !filter || filter( elem, context, xml ) ) { - newUnmatched.push( elem ); - if ( mapped ) { - map.push( i ); - } - } - } - } - - return newUnmatched; -} - -function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) { - if ( postFilter && !postFilter[ expando ] ) { - postFilter = setMatcher( postFilter ); - } - if ( postFinder && !postFinder[ expando ] ) { - postFinder = setMatcher( postFinder, postSelector ); - } - return markFunction(function( seed, results, context, xml ) { - var temp, i, elem, - preMap = [], - postMap = [], - preexisting = results.length, - - // Get initial elements from seed or context - elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ), - - // Prefilter to get matcher input, preserving a map for seed-results synchronization - matcherIn = preFilter && ( seed || !selector ) ? - condense( elems, preMap, preFilter, context, xml ) : - elems, - - matcherOut = matcher ? - // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results, - postFinder || ( seed ? preFilter : preexisting || postFilter ) ? - - // ...intermediate processing is necessary - [] : - - // ...otherwise use results directly - results : - matcherIn; - - // Find primary matches - if ( matcher ) { - matcher( matcherIn, matcherOut, context, xml ); - } - - // Apply postFilter - if ( postFilter ) { - temp = condense( matcherOut, postMap ); - postFilter( temp, [], context, xml ); - - // Un-match failing elements by moving them back to matcherIn - i = temp.length; - while ( i-- ) { - if ( (elem = temp[i]) ) { - matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem); - } - } - } - - if ( seed ) { - if ( postFinder || preFilter ) { - if ( postFinder ) { - // Get the final matcherOut by condensing this intermediate into postFinder contexts - temp = []; - i = matcherOut.length; - while ( i-- ) { - if ( (elem = matcherOut[i]) ) { - // Restore matcherIn since elem is not yet a final match - temp.push( (matcherIn[i] = elem) ); - } - } - postFinder( null, (matcherOut = []), temp, xml ); - } - - // Move matched elements from seed to results to keep them synchronized - i = matcherOut.length; - while ( i-- ) { - if ( (elem = matcherOut[i]) && - (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) { - - seed[temp] = !(results[temp] = elem); - } - } - } - - // Add elements to results, through postFinder if defined - } else { - matcherOut = condense( - matcherOut === results ? - matcherOut.splice( preexisting, matcherOut.length ) : - matcherOut - ); - if ( postFinder ) { - postFinder( null, results, matcherOut, xml ); - } else { - push.apply( results, matcherOut ); - } - } - }); -} - -function matcherFromTokens( tokens ) { - var checkContext, matcher, j, - len = tokens.length, - leadingRelative = Expr.relative[ tokens[0].type ], - implicitRelative = leadingRelative || Expr.relative[" "], - i = leadingRelative ? 1 : 0, - - // The foundational matcher ensures that elements are reachable from top-level context(s) - matchContext = addCombinator( function( elem ) { - return elem === checkContext; - }, implicitRelative, true ), - matchAnyContext = addCombinator( function( elem ) { - return indexOf( checkContext, elem ) > -1; - }, implicitRelative, true ), - matchers = [ function( elem, context, xml ) { - var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || ( - (checkContext = context).nodeType ? - matchContext( elem, context, xml ) : - matchAnyContext( elem, context, xml ) ); - // Avoid hanging onto element (issue #299) - checkContext = null; - return ret; - } ]; - - for ( ; i < len; i++ ) { - if ( (matcher = Expr.relative[ tokens[i].type ]) ) { - matchers = [ addCombinator(elementMatcher( matchers ), matcher) ]; - } else { - matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches ); - - // Return special upon seeing a positional matcher - if ( matcher[ expando ] ) { - // Find the next relative operator (if any) for proper handling - j = ++i; - for ( ; j < len; j++ ) { - if ( Expr.relative[ tokens[j].type ] ) { - break; - } - } - return setMatcher( - i > 1 && elementMatcher( matchers ), - i > 1 && toSelector( - // If the preceding token was a descendant combinator, insert an implicit any-element `*` - tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" }) - ).replace( rtrim, "$1" ), - matcher, - i < j && matcherFromTokens( tokens.slice( i, j ) ), - j < len && matcherFromTokens( (tokens = tokens.slice( j )) ), - j < len && toSelector( tokens ) - ); - } - matchers.push( matcher ); - } - } - - return elementMatcher( matchers ); -} - -function matcherFromGroupMatchers( elementMatchers, setMatchers ) { - var bySet = setMatchers.length > 0, - byElement = elementMatchers.length > 0, - superMatcher = function( seed, context, xml, results, outermost ) { - var elem, j, matcher, - matchedCount = 0, - i = "0", - unmatched = seed && [], - setMatched = [], - contextBackup = outermostContext, - // We must always have either seed elements or outermost context - elems = seed || byElement && Expr.find["TAG"]( "*", outermost ), - // Use integer dirruns iff this is the outermost matcher - dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1), - len = elems.length; - - if ( outermost ) { - outermostContext = context === document || context || outermost; - } - - // Add elements passing elementMatchers directly to results - // Support: IE<9, Safari - // Tolerate NodeList properties (IE: "length"; Safari: ) matching elements by id - for ( ; i !== len && (elem = elems[i]) != null; i++ ) { - if ( byElement && elem ) { - j = 0; - if ( !context && elem.ownerDocument !== document ) { - setDocument( elem ); - xml = !documentIsHTML; - } - while ( (matcher = elementMatchers[j++]) ) { - if ( matcher( elem, context || document, xml) ) { - results.push( elem ); - break; - } - } - if ( outermost ) { - dirruns = dirrunsUnique; - } - } - - // Track unmatched elements for set filters - if ( bySet ) { - // They will have gone through all possible matchers - if ( (elem = !matcher && elem) ) { - matchedCount--; - } - - // Lengthen the array for every element, matched or not - if ( seed ) { - unmatched.push( elem ); - } - } - } - - // `i` is now the count of elements visited above, and adding it to `matchedCount` - // makes the latter nonnegative. - matchedCount += i; - - // Apply set filters to unmatched elements - // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount` - // equals `i`), unless we didn't visit _any_ elements in the above loop because we have - // no element matchers and no seed. - // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that - // case, which will result in a "00" `matchedCount` that differs from `i` but is also - // numerically zero. - if ( bySet && i !== matchedCount ) { - j = 0; - while ( (matcher = setMatchers[j++]) ) { - matcher( unmatched, setMatched, context, xml ); - } - - if ( seed ) { - // Reintegrate element matches to eliminate the need for sorting - if ( matchedCount > 0 ) { - while ( i-- ) { - if ( !(unmatched[i] || setMatched[i]) ) { - setMatched[i] = pop.call( results ); - } - } - } - - // Discard index placeholder values to get only actual matches - setMatched = condense( setMatched ); - } - - // Add matches to results - push.apply( results, setMatched ); - - // Seedless set matches succeeding multiple successful matchers stipulate sorting - if ( outermost && !seed && setMatched.length > 0 && - ( matchedCount + setMatchers.length ) > 1 ) { - - Sizzle.uniqueSort( results ); - } - } - - // Override manipulation of globals by nested matchers - if ( outermost ) { - dirruns = dirrunsUnique; - outermostContext = contextBackup; - } - - return unmatched; - }; - - return bySet ? - markFunction( superMatcher ) : - superMatcher; -} - -compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { - var i, - setMatchers = [], - elementMatchers = [], - cached = compilerCache[ selector + " " ]; - - if ( !cached ) { - // Generate a function of recursive functions that can be used to check each element - if ( !match ) { - match = tokenize( selector ); - } - i = match.length; - while ( i-- ) { - cached = matcherFromTokens( match[i] ); - if ( cached[ expando ] ) { - setMatchers.push( cached ); - } else { - elementMatchers.push( cached ); - } - } - - // Cache the compiled function - cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) ); - - // Save selector and tokenization - cached.selector = selector; - } - return cached; -}; - -/** - * A low-level selection function that works with Sizzle's compiled - * selector functions - * @param {String|Function} selector A selector or a pre-compiled - * selector function built with Sizzle.compile - * @param {Element} context - * @param {Array} [results] - * @param {Array} [seed] A set of elements to match against - */ -select = Sizzle.select = function( selector, context, results, seed ) { - var i, tokens, token, type, find, - compiled = typeof selector === "function" && selector, - match = !seed && tokenize( (selector = compiled.selector || selector) ); - - results = results || []; - - // Try to minimize operations if there is only one selector in the list and no seed - // (the latter of which guarantees us context) - if ( match.length === 1 ) { - - // Reduce context if the leading compound selector is an ID - tokens = match[0] = match[0].slice( 0 ); - if ( tokens.length > 2 && (token = tokens[0]).type === "ID" && - context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) { - - context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0]; - if ( !context ) { - return results; - - // Precompiled matchers will still verify ancestry, so step up a level - } else if ( compiled ) { - context = context.parentNode; - } - - selector = selector.slice( tokens.shift().value.length ); - } - - // Fetch a seed set for right-to-left matching - i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length; - while ( i-- ) { - token = tokens[i]; - - // Abort if we hit a combinator - if ( Expr.relative[ (type = token.type) ] ) { - break; - } - if ( (find = Expr.find[ type ]) ) { - // Search, expanding context for leading sibling combinators - if ( (seed = find( - token.matches[0].replace( runescape, funescape ), - rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context - )) ) { - - // If seed is empty or no tokens remain, we can return early - tokens.splice( i, 1 ); - selector = seed.length && toSelector( tokens ); - if ( !selector ) { - push.apply( results, seed ); - return results; - } - - break; - } - } - } - } - - // Compile and execute a filtering function if one is not provided - // Provide `match` to avoid retokenization if we modified the selector above - ( compiled || compile( selector, match ) )( - seed, - context, - !documentIsHTML, - results, - !context || rsibling.test( selector ) && testContext( context.parentNode ) || context - ); - return results; -}; - -// One-time assignments - -// Sort stability -support.sortStable = expando.split("").sort( sortOrder ).join("") === expando; - -// Support: Chrome 14-35+ -// Always assume duplicates if they aren't passed to the comparison function -support.detectDuplicates = !!hasDuplicate; - -// Initialize against the default document -setDocument(); - -// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27) -// Detached nodes confoundingly follow *each other* -support.sortDetached = assert(function( el ) { - // Should return 1, but returns 4 (following) - return el.compareDocumentPosition( document.createElement("fieldset") ) & 1; -}); - -// Support: IE<8 -// Prevent attribute/property "interpolation" -// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx -if ( !assert(function( el ) { - el.innerHTML = ""; - return el.firstChild.getAttribute("href") === "#" ; -}) ) { - addHandle( "type|href|height|width", function( elem, name, isXML ) { - if ( !isXML ) { - return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 ); - } - }); -} - -// Support: IE<9 -// Use defaultValue in place of getAttribute("value") -if ( !support.attributes || !assert(function( el ) { - el.innerHTML = ""; - el.firstChild.setAttribute( "value", "" ); - return el.firstChild.getAttribute( "value" ) === ""; -}) ) { - addHandle( "value", function( elem, name, isXML ) { - if ( !isXML && elem.nodeName.toLowerCase() === "input" ) { - return elem.defaultValue; - } - }); -} - -// Support: IE<9 -// Use getAttributeNode to fetch booleans when getAttribute lies -if ( !assert(function( el ) { - return el.getAttribute("disabled") == null; -}) ) { - addHandle( booleans, function( elem, name, isXML ) { - var val; - if ( !isXML ) { - return elem[ name ] === true ? name.toLowerCase() : - (val = elem.getAttributeNode( name )) && val.specified ? - val.value : - null; - } - }); -} - -return Sizzle; - -})( window ); - - - -jQuery.find = Sizzle; -jQuery.expr = Sizzle.selectors; - -// Deprecated -jQuery.expr[ ":" ] = jQuery.expr.pseudos; -jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort; -jQuery.text = Sizzle.getText; -jQuery.isXMLDoc = Sizzle.isXML; -jQuery.contains = Sizzle.contains; -jQuery.escapeSelector = Sizzle.escape; - - - - -var dir = function( elem, dir, until ) { - var matched = [], - truncate = until !== undefined; - - while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) { - if ( elem.nodeType === 1 ) { - if ( truncate && jQuery( elem ).is( until ) ) { - break; - } - matched.push( elem ); - } - } - return matched; -}; - - -var siblings = function( n, elem ) { - var matched = []; - - for ( ; n; n = n.nextSibling ) { - if ( n.nodeType === 1 && n !== elem ) { - matched.push( n ); - } - } - - return matched; -}; - - -var rneedsContext = jQuery.expr.match.needsContext; - - - -function nodeName( elem, name ) { - - return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase(); - -}; -var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i ); - - - -var risSimple = /^.[^:#\[\.,]*$/; - -// Implement the identical functionality for filter and not -function winnow( elements, qualifier, not ) { - if ( jQuery.isFunction( qualifier ) ) { - return jQuery.grep( elements, function( elem, i ) { - return !!qualifier.call( elem, i, elem ) !== not; - } ); - } - - // Single element - if ( qualifier.nodeType ) { - return jQuery.grep( elements, function( elem ) { - return ( elem === qualifier ) !== not; - } ); - } - - // Arraylike of elements (jQuery, arguments, Array) - if ( typeof qualifier !== "string" ) { - return jQuery.grep( elements, function( elem ) { - return ( indexOf.call( qualifier, elem ) > -1 ) !== not; - } ); - } - - // Simple selector that can be filtered directly, removing non-Elements - if ( risSimple.test( qualifier ) ) { - return jQuery.filter( qualifier, elements, not ); - } - - // Complex selector, compare the two sets, removing non-Elements - qualifier = jQuery.filter( qualifier, elements ); - return jQuery.grep( elements, function( elem ) { - return ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1; - } ); -} - -jQuery.filter = function( expr, elems, not ) { - var elem = elems[ 0 ]; - - if ( not ) { - expr = ":not(" + expr + ")"; - } - - if ( elems.length === 1 && elem.nodeType === 1 ) { - return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : []; - } - - return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) { - return elem.nodeType === 1; - } ) ); -}; - -jQuery.fn.extend( { - find: function( selector ) { - var i, ret, - len = this.length, - self = this; - - if ( typeof selector !== "string" ) { - return this.pushStack( jQuery( selector ).filter( function() { - for ( i = 0; i < len; i++ ) { - if ( jQuery.contains( self[ i ], this ) ) { - return true; - } - } - } ) ); - } - - ret = this.pushStack( [] ); - - for ( i = 0; i < len; i++ ) { - jQuery.find( selector, self[ i ], ret ); - } - - return len > 1 ? jQuery.uniqueSort( ret ) : ret; - }, - filter: function( selector ) { - return this.pushStack( winnow( this, selector || [], false ) ); - }, - not: function( selector ) { - return this.pushStack( winnow( this, selector || [], true ) ); - }, - is: function( selector ) { - return !!winnow( - this, - - // If this is a positional/relative selector, check membership in the returned set - // so $("p:first").is("p:last") won't return true for a doc with two "p". - typeof selector === "string" && rneedsContext.test( selector ) ? - jQuery( selector ) : - selector || [], - false - ).length; - } -} ); - - -// Initialize a jQuery object - - -// A central reference to the root jQuery(document) -var rootjQuery, - - // A simple way to check for HTML strings - // Prioritize #id over to avoid XSS via location.hash (#9521) - // Strict HTML recognition (#11290: must start with <) - // Shortcut simple #id case for speed - rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/, - - init = jQuery.fn.init = function( selector, context, root ) { - var match, elem; - - // HANDLE: $(""), $(null), $(undefined), $(false) - if ( !selector ) { - return this; - } - - // Method init() accepts an alternate rootjQuery - // so migrate can support jQuery.sub (gh-2101) - root = root || rootjQuery; - - // Handle HTML strings - if ( typeof selector === "string" ) { - if ( selector[ 0 ] === "<" && - selector[ selector.length - 1 ] === ">" && - selector.length >= 3 ) { - - // Assume that strings that start and end with <> are HTML and skip the regex check - match = [ null, selector, null ]; - - } else { - match = rquickExpr.exec( selector ); - } - - // Match html or make sure no context is specified for #id - if ( match && ( match[ 1 ] || !context ) ) { - - // HANDLE: $(html) -> $(array) - if ( match[ 1 ] ) { - context = context instanceof jQuery ? context[ 0 ] : context; - - // Option to run scripts is true for back-compat - // Intentionally let the error be thrown if parseHTML is not present - jQuery.merge( this, jQuery.parseHTML( - match[ 1 ], - context && context.nodeType ? context.ownerDocument || context : document, - true - ) ); - - // HANDLE: $(html, props) - if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) { - for ( match in context ) { - - // Properties of context are called as methods if possible - if ( jQuery.isFunction( this[ match ] ) ) { - this[ match ]( context[ match ] ); - - // ...and otherwise set as attributes - } else { - this.attr( match, context[ match ] ); - } - } - } - - return this; - - // HANDLE: $(#id) - } else { - elem = document.getElementById( match[ 2 ] ); - - if ( elem ) { - - // Inject the element directly into the jQuery object - this[ 0 ] = elem; - this.length = 1; - } - return this; - } - - // HANDLE: $(expr, $(...)) - } else if ( !context || context.jquery ) { - return ( context || root ).find( selector ); - - // HANDLE: $(expr, context) - // (which is just equivalent to: $(context).find(expr) - } else { - return this.constructor( context ).find( selector ); - } - - // HANDLE: $(DOMElement) - } else if ( selector.nodeType ) { - this[ 0 ] = selector; - this.length = 1; - return this; - - // HANDLE: $(function) - // Shortcut for document ready - } else if ( jQuery.isFunction( selector ) ) { - return root.ready !== undefined ? - root.ready( selector ) : - - // Execute immediately if ready is not present - selector( jQuery ); - } - - return jQuery.makeArray( selector, this ); - }; - -// Give the init function the jQuery prototype for later instantiation -init.prototype = jQuery.fn; - -// Initialize central reference -rootjQuery = jQuery( document ); - - -var rparentsprev = /^(?:parents|prev(?:Until|All))/, - - // Methods guaranteed to produce a unique set when starting from a unique set - guaranteedUnique = { - children: true, - contents: true, - next: true, - prev: true - }; - -jQuery.fn.extend( { - has: function( target ) { - var targets = jQuery( target, this ), - l = targets.length; - - return this.filter( function() { - var i = 0; - for ( ; i < l; i++ ) { - if ( jQuery.contains( this, targets[ i ] ) ) { - return true; - } - } - } ); - }, - - closest: function( selectors, context ) { - var cur, - i = 0, - l = this.length, - matched = [], - targets = typeof selectors !== "string" && jQuery( selectors ); - - // Positional selectors never match, since there's no _selection_ context - if ( !rneedsContext.test( selectors ) ) { - for ( ; i < l; i++ ) { - for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) { - - // Always skip document fragments - if ( cur.nodeType < 11 && ( targets ? - targets.index( cur ) > -1 : - - // Don't pass non-elements to Sizzle - cur.nodeType === 1 && - jQuery.find.matchesSelector( cur, selectors ) ) ) { - - matched.push( cur ); - break; - } - } - } - } - - return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched ); - }, - - // Determine the position of an element within the set - index: function( elem ) { - - // No argument, return index in parent - if ( !elem ) { - return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1; - } - - // Index in selector - if ( typeof elem === "string" ) { - return indexOf.call( jQuery( elem ), this[ 0 ] ); - } - - // Locate the position of the desired element - return indexOf.call( this, - - // If it receives a jQuery object, the first element is used - elem.jquery ? elem[ 0 ] : elem - ); - }, - - add: function( selector, context ) { - return this.pushStack( - jQuery.uniqueSort( - jQuery.merge( this.get(), jQuery( selector, context ) ) - ) - ); - }, - - addBack: function( selector ) { - return this.add( selector == null ? - this.prevObject : this.prevObject.filter( selector ) - ); - } -} ); - -function sibling( cur, dir ) { - while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {} - return cur; -} - -jQuery.each( { - parent: function( elem ) { - var parent = elem.parentNode; - return parent && parent.nodeType !== 11 ? parent : null; - }, - parents: function( elem ) { - return dir( elem, "parentNode" ); - }, - parentsUntil: function( elem, i, until ) { - return dir( elem, "parentNode", until ); - }, - next: function( elem ) { - return sibling( elem, "nextSibling" ); - }, - prev: function( elem ) { - return sibling( elem, "previousSibling" ); - }, - nextAll: function( elem ) { - return dir( elem, "nextSibling" ); - }, - prevAll: function( elem ) { - return dir( elem, "previousSibling" ); - }, - nextUntil: function( elem, i, until ) { - return dir( elem, "nextSibling", until ); - }, - prevUntil: function( elem, i, until ) { - return dir( elem, "previousSibling", until ); - }, - siblings: function( elem ) { - return siblings( ( elem.parentNode || {} ).firstChild, elem ); - }, - children: function( elem ) { - return siblings( elem.firstChild ); - }, - contents: function( elem ) { - if ( nodeName( elem, "iframe" ) ) { - return elem.contentDocument; - } - - // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only - // Treat the template element as a regular one in browsers that - // don't support it. - if ( nodeName( elem, "template" ) ) { - elem = elem.content || elem; - } - - return jQuery.merge( [], elem.childNodes ); - } -}, function( name, fn ) { - jQuery.fn[ name ] = function( until, selector ) { - var matched = jQuery.map( this, fn, until ); - - if ( name.slice( -5 ) !== "Until" ) { - selector = until; - } - - if ( selector && typeof selector === "string" ) { - matched = jQuery.filter( selector, matched ); - } - - if ( this.length > 1 ) { - - // Remove duplicates - if ( !guaranteedUnique[ name ] ) { - jQuery.uniqueSort( matched ); - } - - // Reverse order for parents* and prev-derivatives - if ( rparentsprev.test( name ) ) { - matched.reverse(); - } - } - - return this.pushStack( matched ); - }; -} ); -var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g ); - - - -// Convert String-formatted options into Object-formatted ones -function createOptions( options ) { - var object = {}; - jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) { - object[ flag ] = true; - } ); - return object; -} - -/* - * Create a callback list using the following parameters: - * - * options: an optional list of space-separated options that will change how - * the callback list behaves or a more traditional option object - * - * By default a callback list will act like an event callback list and can be - * "fired" multiple times. - * - * Possible options: - * - * once: will ensure the callback list can only be fired once (like a Deferred) - * - * memory: will keep track of previous values and will call any callback added - * after the list has been fired right away with the latest "memorized" - * values (like a Deferred) - * - * unique: will ensure a callback can only be added once (no duplicate in the list) - * - * stopOnFalse: interrupt callings when a callback returns false - * - */ -jQuery.Callbacks = function( options ) { - - // Convert options from String-formatted to Object-formatted if needed - // (we check in cache first) - options = typeof options === "string" ? - createOptions( options ) : - jQuery.extend( {}, options ); - - var // Flag to know if list is currently firing - firing, - - // Last fire value for non-forgettable lists - memory, - - // Flag to know if list was already fired - fired, - - // Flag to prevent firing - locked, - - // Actual callback list - list = [], - - // Queue of execution data for repeatable lists - queue = [], - - // Index of currently firing callback (modified by add/remove as needed) - firingIndex = -1, - - // Fire callbacks - fire = function() { - - // Enforce single-firing - locked = locked || options.once; - - // Execute callbacks for all pending executions, - // respecting firingIndex overrides and runtime changes - fired = firing = true; - for ( ; queue.length; firingIndex = -1 ) { - memory = queue.shift(); - while ( ++firingIndex < list.length ) { - - // Run callback and check for early termination - if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false && - options.stopOnFalse ) { - - // Jump to end and forget the data so .add doesn't re-fire - firingIndex = list.length; - memory = false; - } - } - } - - // Forget the data if we're done with it - if ( !options.memory ) { - memory = false; - } - - firing = false; - - // Clean up if we're done firing for good - if ( locked ) { - - // Keep an empty list if we have data for future add calls - if ( memory ) { - list = []; - - // Otherwise, this object is spent - } else { - list = ""; - } - } - }, - - // Actual Callbacks object - self = { - - // Add a callback or a collection of callbacks to the list - add: function() { - if ( list ) { - - // If we have memory from a past run, we should fire after adding - if ( memory && !firing ) { - firingIndex = list.length - 1; - queue.push( memory ); - } - - ( function add( args ) { - jQuery.each( args, function( _, arg ) { - if ( jQuery.isFunction( arg ) ) { - if ( !options.unique || !self.has( arg ) ) { - list.push( arg ); - } - } else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) { - - // Inspect recursively - add( arg ); - } - } ); - } )( arguments ); - - if ( memory && !firing ) { - fire(); - } - } - return this; - }, - - // Remove a callback from the list - remove: function() { - jQuery.each( arguments, function( _, arg ) { - var index; - while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) { - list.splice( index, 1 ); - - // Handle firing indexes - if ( index <= firingIndex ) { - firingIndex--; - } - } - } ); - return this; - }, - - // Check if a given callback is in the list. - // If no argument is given, return whether or not list has callbacks attached. - has: function( fn ) { - return fn ? - jQuery.inArray( fn, list ) > -1 : - list.length > 0; - }, - - // Remove all callbacks from the list - empty: function() { - if ( list ) { - list = []; - } - return this; - }, - - // Disable .fire and .add - // Abort any current/pending executions - // Clear all callbacks and values - disable: function() { - locked = queue = []; - list = memory = ""; - return this; - }, - disabled: function() { - return !list; - }, - - // Disable .fire - // Also disable .add unless we have memory (since it would have no effect) - // Abort any pending executions - lock: function() { - locked = queue = []; - if ( !memory && !firing ) { - list = memory = ""; - } - return this; - }, - locked: function() { - return !!locked; - }, - - // Call all callbacks with the given context and arguments - fireWith: function( context, args ) { - if ( !locked ) { - args = args || []; - args = [ context, args.slice ? args.slice() : args ]; - queue.push( args ); - if ( !firing ) { - fire(); - } - } - return this; - }, - - // Call all the callbacks with the given arguments - fire: function() { - self.fireWith( this, arguments ); - return this; - }, - - // To know if the callbacks have already been called at least once - fired: function() { - return !!fired; - } - }; - - return self; -}; - - -function Identity( v ) { - return v; -} -function Thrower( ex ) { - throw ex; -} - -function adoptValue( value, resolve, reject, noValue ) { - var method; - - try { - - // Check for promise aspect first to privilege synchronous behavior - if ( value && jQuery.isFunction( ( method = value.promise ) ) ) { - method.call( value ).done( resolve ).fail( reject ); - - // Other thenables - } else if ( value && jQuery.isFunction( ( method = value.then ) ) ) { - method.call( value, resolve, reject ); - - // Other non-thenables - } else { - - // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer: - // * false: [ value ].slice( 0 ) => resolve( value ) - // * true: [ value ].slice( 1 ) => resolve() - resolve.apply( undefined, [ value ].slice( noValue ) ); - } - - // For Promises/A+, convert exceptions into rejections - // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in - // Deferred#then to conditionally suppress rejection. - } catch ( value ) { - - // Support: Android 4.0 only - // Strict mode functions invoked without .call/.apply get global-object context - reject.apply( undefined, [ value ] ); - } -} - -jQuery.extend( { - - Deferred: function( func ) { - var tuples = [ - - // action, add listener, callbacks, - // ... .then handlers, argument index, [final state] - [ "notify", "progress", jQuery.Callbacks( "memory" ), - jQuery.Callbacks( "memory" ), 2 ], - [ "resolve", "done", jQuery.Callbacks( "once memory" ), - jQuery.Callbacks( "once memory" ), 0, "resolved" ], - [ "reject", "fail", jQuery.Callbacks( "once memory" ), - jQuery.Callbacks( "once memory" ), 1, "rejected" ] - ], - state = "pending", - promise = { - state: function() { - return state; - }, - always: function() { - deferred.done( arguments ).fail( arguments ); - return this; - }, - "catch": function( fn ) { - return promise.then( null, fn ); - }, - - // Keep pipe for back-compat - pipe: function( /* fnDone, fnFail, fnProgress */ ) { - var fns = arguments; - - return jQuery.Deferred( function( newDefer ) { - jQuery.each( tuples, function( i, tuple ) { - - // Map tuples (progress, done, fail) to arguments (done, fail, progress) - var fn = jQuery.isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ]; - - // deferred.progress(function() { bind to newDefer or newDefer.notify }) - // deferred.done(function() { bind to newDefer or newDefer.resolve }) - // deferred.fail(function() { bind to newDefer or newDefer.reject }) - deferred[ tuple[ 1 ] ]( function() { - var returned = fn && fn.apply( this, arguments ); - if ( returned && jQuery.isFunction( returned.promise ) ) { - returned.promise() - .progress( newDefer.notify ) - .done( newDefer.resolve ) - .fail( newDefer.reject ); - } else { - newDefer[ tuple[ 0 ] + "With" ]( - this, - fn ? [ returned ] : arguments - ); - } - } ); - } ); - fns = null; - } ).promise(); - }, - then: function( onFulfilled, onRejected, onProgress ) { - var maxDepth = 0; - function resolve( depth, deferred, handler, special ) { - return function() { - var that = this, - args = arguments, - mightThrow = function() { - var returned, then; - - // Support: Promises/A+ section 2.3.3.3.3 - // https://promisesaplus.com/#point-59 - // Ignore double-resolution attempts - if ( depth < maxDepth ) { - return; - } - - returned = handler.apply( that, args ); - - // Support: Promises/A+ section 2.3.1 - // https://promisesaplus.com/#point-48 - if ( returned === deferred.promise() ) { - throw new TypeError( "Thenable self-resolution" ); - } - - // Support: Promises/A+ sections 2.3.3.1, 3.5 - // https://promisesaplus.com/#point-54 - // https://promisesaplus.com/#point-75 - // Retrieve `then` only once - then = returned && - - // Support: Promises/A+ section 2.3.4 - // https://promisesaplus.com/#point-64 - // Only check objects and functions for thenability - ( typeof returned === "object" || - typeof returned === "function" ) && - returned.then; - - // Handle a returned thenable - if ( jQuery.isFunction( then ) ) { - - // Special processors (notify) just wait for resolution - if ( special ) { - then.call( - returned, - resolve( maxDepth, deferred, Identity, special ), - resolve( maxDepth, deferred, Thrower, special ) - ); - - // Normal processors (resolve) also hook into progress - } else { - - // ...and disregard older resolution values - maxDepth++; - - then.call( - returned, - resolve( maxDepth, deferred, Identity, special ), - resolve( maxDepth, deferred, Thrower, special ), - resolve( maxDepth, deferred, Identity, - deferred.notifyWith ) - ); - } - - // Handle all other returned values - } else { - - // Only substitute handlers pass on context - // and multiple values (non-spec behavior) - if ( handler !== Identity ) { - that = undefined; - args = [ returned ]; - } - - // Process the value(s) - // Default process is resolve - ( special || deferred.resolveWith )( that, args ); - } - }, - - // Only normal processors (resolve) catch and reject exceptions - process = special ? - mightThrow : - function() { - try { - mightThrow(); - } catch ( e ) { - - if ( jQuery.Deferred.exceptionHook ) { - jQuery.Deferred.exceptionHook( e, - process.stackTrace ); - } - - // Support: Promises/A+ section 2.3.3.3.4.1 - // https://promisesaplus.com/#point-61 - // Ignore post-resolution exceptions - if ( depth + 1 >= maxDepth ) { - - // Only substitute handlers pass on context - // and multiple values (non-spec behavior) - if ( handler !== Thrower ) { - that = undefined; - args = [ e ]; - } - - deferred.rejectWith( that, args ); - } - } - }; - - // Support: Promises/A+ section 2.3.3.3.1 - // https://promisesaplus.com/#point-57 - // Re-resolve promises immediately to dodge false rejection from - // subsequent errors - if ( depth ) { - process(); - } else { - - // Call an optional hook to record the stack, in case of exception - // since it's otherwise lost when execution goes async - if ( jQuery.Deferred.getStackHook ) { - process.stackTrace = jQuery.Deferred.getStackHook(); - } - window.setTimeout( process ); - } - }; - } - - return jQuery.Deferred( function( newDefer ) { - - // progress_handlers.add( ... ) - tuples[ 0 ][ 3 ].add( - resolve( - 0, - newDefer, - jQuery.isFunction( onProgress ) ? - onProgress : - Identity, - newDefer.notifyWith - ) - ); - - // fulfilled_handlers.add( ... ) - tuples[ 1 ][ 3 ].add( - resolve( - 0, - newDefer, - jQuery.isFunction( onFulfilled ) ? - onFulfilled : - Identity - ) - ); - - // rejected_handlers.add( ... ) - tuples[ 2 ][ 3 ].add( - resolve( - 0, - newDefer, - jQuery.isFunction( onRejected ) ? - onRejected : - Thrower - ) - ); - } ).promise(); - }, - - // Get a promise for this deferred - // If obj is provided, the promise aspect is added to the object - promise: function( obj ) { - return obj != null ? jQuery.extend( obj, promise ) : promise; - } - }, - deferred = {}; - - // Add list-specific methods - jQuery.each( tuples, function( i, tuple ) { - var list = tuple[ 2 ], - stateString = tuple[ 5 ]; - - // promise.progress = list.add - // promise.done = list.add - // promise.fail = list.add - promise[ tuple[ 1 ] ] = list.add; - - // Handle state - if ( stateString ) { - list.add( - function() { - - // state = "resolved" (i.e., fulfilled) - // state = "rejected" - state = stateString; - }, - - // rejected_callbacks.disable - // fulfilled_callbacks.disable - tuples[ 3 - i ][ 2 ].disable, - - // progress_callbacks.lock - tuples[ 0 ][ 2 ].lock - ); - } - - // progress_handlers.fire - // fulfilled_handlers.fire - // rejected_handlers.fire - list.add( tuple[ 3 ].fire ); - - // deferred.notify = function() { deferred.notifyWith(...) } - // deferred.resolve = function() { deferred.resolveWith(...) } - // deferred.reject = function() { deferred.rejectWith(...) } - deferred[ tuple[ 0 ] ] = function() { - deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments ); - return this; - }; - - // deferred.notifyWith = list.fireWith - // deferred.resolveWith = list.fireWith - // deferred.rejectWith = list.fireWith - deferred[ tuple[ 0 ] + "With" ] = list.fireWith; - } ); - - // Make the deferred a promise - promise.promise( deferred ); - - // Call given func if any - if ( func ) { - func.call( deferred, deferred ); - } - - // All done! - return deferred; - }, - - // Deferred helper - when: function( singleValue ) { - var - - // count of uncompleted subordinates - remaining = arguments.length, - - // count of unprocessed arguments - i = remaining, - - // subordinate fulfillment data - resolveContexts = Array( i ), - resolveValues = slice.call( arguments ), - - // the master Deferred - master = jQuery.Deferred(), - - // subordinate callback factory - updateFunc = function( i ) { - return function( value ) { - resolveContexts[ i ] = this; - resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value; - if ( !( --remaining ) ) { - master.resolveWith( resolveContexts, resolveValues ); - } - }; - }; - - // Single- and empty arguments are adopted like Promise.resolve - if ( remaining <= 1 ) { - adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject, - !remaining ); - - // Use .then() to unwrap secondary thenables (cf. gh-3000) - if ( master.state() === "pending" || - jQuery.isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) { - - return master.then(); - } - } - - // Multiple arguments are aggregated like Promise.all array elements - while ( i-- ) { - adoptValue( resolveValues[ i ], updateFunc( i ), master.reject ); - } - - return master.promise(); - } -} ); - - -// These usually indicate a programmer mistake during development, -// warn about them ASAP rather than swallowing them by default. -var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/; - -jQuery.Deferred.exceptionHook = function( error, stack ) { - - // Support: IE 8 - 9 only - // Console exists when dev tools are open, which can happen at any time - if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) { - window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack ); - } -}; - - - - -jQuery.readyException = function( error ) { - window.setTimeout( function() { - throw error; - } ); -}; - - - - -// The deferred used on DOM ready -var readyList = jQuery.Deferred(); - -jQuery.fn.ready = function( fn ) { - - readyList - .then( fn ) - - // Wrap jQuery.readyException in a function so that the lookup - // happens at the time of error handling instead of callback - // registration. - .catch( function( error ) { - jQuery.readyException( error ); - } ); - - return this; -}; - -jQuery.extend( { - - // Is the DOM ready to be used? Set to true once it occurs. - isReady: false, - - // A counter to track how many items to wait for before - // the ready event fires. See #6781 - readyWait: 1, - - // Handle when the DOM is ready - ready: function( wait ) { - - // Abort if there are pending holds or we're already ready - if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) { - return; - } - - // Remember that the DOM is ready - jQuery.isReady = true; - - // If a normal DOM Ready event fired, decrement, and wait if need be - if ( wait !== true && --jQuery.readyWait > 0 ) { - return; - } - - // If there are functions bound, to execute - readyList.resolveWith( document, [ jQuery ] ); - } -} ); - -jQuery.ready.then = readyList.then; - -// The ready event handler and self cleanup method -function completed() { - document.removeEventListener( "DOMContentLoaded", completed ); - window.removeEventListener( "load", completed ); - jQuery.ready(); -} - -// Catch cases where $(document).ready() is called -// after the browser event has already occurred. -// Support: IE <=9 - 10 only -// Older IE sometimes signals "interactive" too soon -if ( document.readyState === "complete" || - ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) { - - // Handle it asynchronously to allow scripts the opportunity to delay ready - window.setTimeout( jQuery.ready ); - -} else { - - // Use the handy event callback - document.addEventListener( "DOMContentLoaded", completed ); - - // A fallback to window.onload, that will always work - window.addEventListener( "load", completed ); -} - - - - -// Multifunctional method to get and set values of a collection -// The value/s can optionally be executed if it's a function -var access = function( elems, fn, key, value, chainable, emptyGet, raw ) { - var i = 0, - len = elems.length, - bulk = key == null; - - // Sets many values - if ( jQuery.type( key ) === "object" ) { - chainable = true; - for ( i in key ) { - access( elems, fn, i, key[ i ], true, emptyGet, raw ); - } - - // Sets one value - } else if ( value !== undefined ) { - chainable = true; - - if ( !jQuery.isFunction( value ) ) { - raw = true; - } - - if ( bulk ) { - - // Bulk operations run against the entire set - if ( raw ) { - fn.call( elems, value ); - fn = null; - - // ...except when executing function values - } else { - bulk = fn; - fn = function( elem, key, value ) { - return bulk.call( jQuery( elem ), value ); - }; - } - } - - if ( fn ) { - for ( ; i < len; i++ ) { - fn( - elems[ i ], key, raw ? - value : - value.call( elems[ i ], i, fn( elems[ i ], key ) ) - ); - } - } - } - - if ( chainable ) { - return elems; - } - - // Gets - if ( bulk ) { - return fn.call( elems ); - } - - return len ? fn( elems[ 0 ], key ) : emptyGet; -}; -var acceptData = function( owner ) { - - // Accepts only: - // - Node - // - Node.ELEMENT_NODE - // - Node.DOCUMENT_NODE - // - Object - // - Any - return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType ); -}; - - - - -function Data() { - this.expando = jQuery.expando + Data.uid++; -} - -Data.uid = 1; - -Data.prototype = { - - cache: function( owner ) { - - // Check if the owner object already has a cache - var value = owner[ this.expando ]; - - // If not, create one - if ( !value ) { - value = {}; - - // We can accept data for non-element nodes in modern browsers, - // but we should not, see #8335. - // Always return an empty object. - if ( acceptData( owner ) ) { - - // If it is a node unlikely to be stringify-ed or looped over - // use plain assignment - if ( owner.nodeType ) { - owner[ this.expando ] = value; - - // Otherwise secure it in a non-enumerable property - // configurable must be true to allow the property to be - // deleted when data is removed - } else { - Object.defineProperty( owner, this.expando, { - value: value, - configurable: true - } ); - } - } - } - - return value; - }, - set: function( owner, data, value ) { - var prop, - cache = this.cache( owner ); - - // Handle: [ owner, key, value ] args - // Always use camelCase key (gh-2257) - if ( typeof data === "string" ) { - cache[ jQuery.camelCase( data ) ] = value; - - // Handle: [ owner, { properties } ] args - } else { - - // Copy the properties one-by-one to the cache object - for ( prop in data ) { - cache[ jQuery.camelCase( prop ) ] = data[ prop ]; - } - } - return cache; - }, - get: function( owner, key ) { - return key === undefined ? - this.cache( owner ) : - - // Always use camelCase key (gh-2257) - owner[ this.expando ] && owner[ this.expando ][ jQuery.camelCase( key ) ]; - }, - access: function( owner, key, value ) { - - // In cases where either: - // - // 1. No key was specified - // 2. A string key was specified, but no value provided - // - // Take the "read" path and allow the get method to determine - // which value to return, respectively either: - // - // 1. The entire cache object - // 2. The data stored at the key - // - if ( key === undefined || - ( ( key && typeof key === "string" ) && value === undefined ) ) { - - return this.get( owner, key ); - } - - // When the key is not a string, or both a key and value - // are specified, set or extend (existing objects) with either: - // - // 1. An object of properties - // 2. A key and value - // - this.set( owner, key, value ); - - // Since the "set" path can have two possible entry points - // return the expected data based on which path was taken[*] - return value !== undefined ? value : key; - }, - remove: function( owner, key ) { - var i, - cache = owner[ this.expando ]; - - if ( cache === undefined ) { - return; - } - - if ( key !== undefined ) { - - // Support array or space separated string of keys - if ( Array.isArray( key ) ) { - - // If key is an array of keys... - // We always set camelCase keys, so remove that. - key = key.map( jQuery.camelCase ); - } else { - key = jQuery.camelCase( key ); - - // If a key with the spaces exists, use it. - // Otherwise, create an array by matching non-whitespace - key = key in cache ? - [ key ] : - ( key.match( rnothtmlwhite ) || [] ); - } - - i = key.length; - - while ( i-- ) { - delete cache[ key[ i ] ]; - } - } - - // Remove the expando if there's no more data - if ( key === undefined || jQuery.isEmptyObject( cache ) ) { - - // Support: Chrome <=35 - 45 - // Webkit & Blink performance suffers when deleting properties - // from DOM nodes, so set to undefined instead - // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted) - if ( owner.nodeType ) { - owner[ this.expando ] = undefined; - } else { - delete owner[ this.expando ]; - } - } - }, - hasData: function( owner ) { - var cache = owner[ this.expando ]; - return cache !== undefined && !jQuery.isEmptyObject( cache ); - } -}; -var dataPriv = new Data(); - -var dataUser = new Data(); - - - -// Implementation Summary -// -// 1. Enforce API surface and semantic compatibility with 1.9.x branch -// 2. Improve the module's maintainability by reducing the storage -// paths to a single mechanism. -// 3. Use the same single mechanism to support "private" and "user" data. -// 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData) -// 5. Avoid exposing implementation details on user objects (eg. expando properties) -// 6. Provide a clear path for implementation upgrade to WeakMap in 2014 - -var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/, - rmultiDash = /[A-Z]/g; - -function getData( data ) { - if ( data === "true" ) { - return true; - } - - if ( data === "false" ) { - return false; - } - - if ( data === "null" ) { - return null; - } - - // Only convert to a number if it doesn't change the string - if ( data === +data + "" ) { - return +data; - } - - if ( rbrace.test( data ) ) { - return JSON.parse( data ); - } - - return data; -} - -function dataAttr( elem, key, data ) { - var name; - - // If nothing was found internally, try to fetch any - // data from the HTML5 data-* attribute - if ( data === undefined && elem.nodeType === 1 ) { - name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase(); - data = elem.getAttribute( name ); - - if ( typeof data === "string" ) { - try { - data = getData( data ); - } catch ( e ) {} - - // Make sure we set the data so it isn't changed later - dataUser.set( elem, key, data ); - } else { - data = undefined; - } - } - return data; -} - -jQuery.extend( { - hasData: function( elem ) { - return dataUser.hasData( elem ) || dataPriv.hasData( elem ); - }, - - data: function( elem, name, data ) { - return dataUser.access( elem, name, data ); - }, - - removeData: function( elem, name ) { - dataUser.remove( elem, name ); - }, - - // TODO: Now that all calls to _data and _removeData have been replaced - // with direct calls to dataPriv methods, these can be deprecated. - _data: function( elem, name, data ) { - return dataPriv.access( elem, name, data ); - }, - - _removeData: function( elem, name ) { - dataPriv.remove( elem, name ); - } -} ); - -jQuery.fn.extend( { - data: function( key, value ) { - var i, name, data, - elem = this[ 0 ], - attrs = elem && elem.attributes; - - // Gets all values - if ( key === undefined ) { - if ( this.length ) { - data = dataUser.get( elem ); - - if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) { - i = attrs.length; - while ( i-- ) { - - // Support: IE 11 only - // The attrs elements can be null (#14894) - if ( attrs[ i ] ) { - name = attrs[ i ].name; - if ( name.indexOf( "data-" ) === 0 ) { - name = jQuery.camelCase( name.slice( 5 ) ); - dataAttr( elem, name, data[ name ] ); - } - } - } - dataPriv.set( elem, "hasDataAttrs", true ); - } - } - - return data; - } - - // Sets multiple values - if ( typeof key === "object" ) { - return this.each( function() { - dataUser.set( this, key ); - } ); - } - - return access( this, function( value ) { - var data; - - // The calling jQuery object (element matches) is not empty - // (and therefore has an element appears at this[ 0 ]) and the - // `value` parameter was not undefined. An empty jQuery object - // will result in `undefined` for elem = this[ 0 ] which will - // throw an exception if an attempt to read a data cache is made. - if ( elem && value === undefined ) { - - // Attempt to get data from the cache - // The key will always be camelCased in Data - data = dataUser.get( elem, key ); - if ( data !== undefined ) { - return data; - } - - // Attempt to "discover" the data in - // HTML5 custom data-* attrs - data = dataAttr( elem, key ); - if ( data !== undefined ) { - return data; - } - - // We tried really hard, but the data doesn't exist. - return; - } - - // Set the data... - this.each( function() { - - // We always store the camelCased key - dataUser.set( this, key, value ); - } ); - }, null, value, arguments.length > 1, null, true ); - }, - - removeData: function( key ) { - return this.each( function() { - dataUser.remove( this, key ); - } ); - } -} ); - - -jQuery.extend( { - queue: function( elem, type, data ) { - var queue; - - if ( elem ) { - type = ( type || "fx" ) + "queue"; - queue = dataPriv.get( elem, type ); - - // Speed up dequeue by getting out quickly if this is just a lookup - if ( data ) { - if ( !queue || Array.isArray( data ) ) { - queue = dataPriv.access( elem, type, jQuery.makeArray( data ) ); - } else { - queue.push( data ); - } - } - return queue || []; - } - }, - - dequeue: function( elem, type ) { - type = type || "fx"; - - var queue = jQuery.queue( elem, type ), - startLength = queue.length, - fn = queue.shift(), - hooks = jQuery._queueHooks( elem, type ), - next = function() { - jQuery.dequeue( elem, type ); - }; - - // If the fx queue is dequeued, always remove the progress sentinel - if ( fn === "inprogress" ) { - fn = queue.shift(); - startLength--; - } - - if ( fn ) { - - // Add a progress sentinel to prevent the fx queue from being - // automatically dequeued - if ( type === "fx" ) { - queue.unshift( "inprogress" ); - } - - // Clear up the last queue stop function - delete hooks.stop; - fn.call( elem, next, hooks ); - } - - if ( !startLength && hooks ) { - hooks.empty.fire(); - } - }, - - // Not public - generate a queueHooks object, or return the current one - _queueHooks: function( elem, type ) { - var key = type + "queueHooks"; - return dataPriv.get( elem, key ) || dataPriv.access( elem, key, { - empty: jQuery.Callbacks( "once memory" ).add( function() { - dataPriv.remove( elem, [ type + "queue", key ] ); - } ) - } ); - } -} ); - -jQuery.fn.extend( { - queue: function( type, data ) { - var setter = 2; - - if ( typeof type !== "string" ) { - data = type; - type = "fx"; - setter--; - } - - if ( arguments.length < setter ) { - return jQuery.queue( this[ 0 ], type ); - } - - return data === undefined ? - this : - this.each( function() { - var queue = jQuery.queue( this, type, data ); - - // Ensure a hooks for this queue - jQuery._queueHooks( this, type ); - - if ( type === "fx" && queue[ 0 ] !== "inprogress" ) { - jQuery.dequeue( this, type ); - } - } ); - }, - dequeue: function( type ) { - return this.each( function() { - jQuery.dequeue( this, type ); - } ); - }, - clearQueue: function( type ) { - return this.queue( type || "fx", [] ); - }, - - // Get a promise resolved when queues of a certain type - // are emptied (fx is the type by default) - promise: function( type, obj ) { - var tmp, - count = 1, - defer = jQuery.Deferred(), - elements = this, - i = this.length, - resolve = function() { - if ( !( --count ) ) { - defer.resolveWith( elements, [ elements ] ); - } - }; - - if ( typeof type !== "string" ) { - obj = type; - type = undefined; - } - type = type || "fx"; - - while ( i-- ) { - tmp = dataPriv.get( elements[ i ], type + "queueHooks" ); - if ( tmp && tmp.empty ) { - count++; - tmp.empty.add( resolve ); - } - } - resolve(); - return defer.promise( obj ); - } -} ); -var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source; - -var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" ); - - -var cssExpand = [ "Top", "Right", "Bottom", "Left" ]; - -var isHiddenWithinTree = function( elem, el ) { - - // isHiddenWithinTree might be called from jQuery#filter function; - // in that case, element will be second argument - elem = el || elem; - - // Inline style trumps all - return elem.style.display === "none" || - elem.style.display === "" && - - // Otherwise, check computed style - // Support: Firefox <=43 - 45 - // Disconnected elements can have computed display: none, so first confirm that elem is - // in the document. - jQuery.contains( elem.ownerDocument, elem ) && - - jQuery.css( elem, "display" ) === "none"; - }; - -var swap = function( elem, options, callback, args ) { - var ret, name, - old = {}; - - // Remember the old values, and insert the new ones - for ( name in options ) { - old[ name ] = elem.style[ name ]; - elem.style[ name ] = options[ name ]; - } - - ret = callback.apply( elem, args || [] ); - - // Revert the old values - for ( name in options ) { - elem.style[ name ] = old[ name ]; - } - - return ret; -}; - - - - -function adjustCSS( elem, prop, valueParts, tween ) { - var adjusted, - scale = 1, - maxIterations = 20, - currentValue = tween ? - function() { - return tween.cur(); - } : - function() { - return jQuery.css( elem, prop, "" ); - }, - initial = currentValue(), - unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ), - - // Starting value computation is required for potential unit mismatches - initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) && - rcssNum.exec( jQuery.css( elem, prop ) ); - - if ( initialInUnit && initialInUnit[ 3 ] !== unit ) { - - // Trust units reported by jQuery.css - unit = unit || initialInUnit[ 3 ]; - - // Make sure we update the tween properties later on - valueParts = valueParts || []; - - // Iteratively approximate from a nonzero starting point - initialInUnit = +initial || 1; - - do { - - // If previous iteration zeroed out, double until we get *something*. - // Use string for doubling so we don't accidentally see scale as unchanged below - scale = scale || ".5"; - - // Adjust and apply - initialInUnit = initialInUnit / scale; - jQuery.style( elem, prop, initialInUnit + unit ); - - // Update scale, tolerating zero or NaN from tween.cur() - // Break the loop if scale is unchanged or perfect, or if we've just had enough. - } while ( - scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations - ); - } - - if ( valueParts ) { - initialInUnit = +initialInUnit || +initial || 0; - - // Apply relative offset (+=/-=) if specified - adjusted = valueParts[ 1 ] ? - initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] : - +valueParts[ 2 ]; - if ( tween ) { - tween.unit = unit; - tween.start = initialInUnit; - tween.end = adjusted; - } - } - return adjusted; -} - - -var defaultDisplayMap = {}; - -function getDefaultDisplay( elem ) { - var temp, - doc = elem.ownerDocument, - nodeName = elem.nodeName, - display = defaultDisplayMap[ nodeName ]; - - if ( display ) { - return display; - } - - temp = doc.body.appendChild( doc.createElement( nodeName ) ); - display = jQuery.css( temp, "display" ); - - temp.parentNode.removeChild( temp ); - - if ( display === "none" ) { - display = "block"; - } - defaultDisplayMap[ nodeName ] = display; - - return display; -} - -function showHide( elements, show ) { - var display, elem, - values = [], - index = 0, - length = elements.length; - - // Determine new display value for elements that need to change - for ( ; index < length; index++ ) { - elem = elements[ index ]; - if ( !elem.style ) { - continue; - } - - display = elem.style.display; - if ( show ) { - - // Since we force visibility upon cascade-hidden elements, an immediate (and slow) - // check is required in this first loop unless we have a nonempty display value (either - // inline or about-to-be-restored) - if ( display === "none" ) { - values[ index ] = dataPriv.get( elem, "display" ) || null; - if ( !values[ index ] ) { - elem.style.display = ""; - } - } - if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) { - values[ index ] = getDefaultDisplay( elem ); - } - } else { - if ( display !== "none" ) { - values[ index ] = "none"; - - // Remember what we're overwriting - dataPriv.set( elem, "display", display ); - } - } - } - - // Set the display of the elements in a second loop to avoid constant reflow - for ( index = 0; index < length; index++ ) { - if ( values[ index ] != null ) { - elements[ index ].style.display = values[ index ]; - } - } - - return elements; -} - -jQuery.fn.extend( { - show: function() { - return showHide( this, true ); - }, - hide: function() { - return showHide( this ); - }, - toggle: function( state ) { - if ( typeof state === "boolean" ) { - return state ? this.show() : this.hide(); - } - - return this.each( function() { - if ( isHiddenWithinTree( this ) ) { - jQuery( this ).show(); - } else { - jQuery( this ).hide(); - } - } ); - } -} ); -var rcheckableType = ( /^(?:checkbox|radio)$/i ); - -var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]+)/i ); - -var rscriptType = ( /^$|\/(?:java|ecma)script/i ); - - - -// We have to close these tags to support XHTML (#13200) -var wrapMap = { - - // Support: IE <=9 only - option: [ 1, "" ], - - // XHTML parsers do not magically insert elements in the - // same way that tag soup parsers do. So we cannot shorten - // this by omitting or other required elements. - thead: [ 1, "", "
" ], - col: [ 2, "", "
" ], - tr: [ 2, "", "
" ], - td: [ 3, "", "
" ], - - _default: [ 0, "", "" ] -}; - -// Support: IE <=9 only -wrapMap.optgroup = wrapMap.option; - -wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead; -wrapMap.th = wrapMap.td; - - -function getAll( context, tag ) { - - // Support: IE <=9 - 11 only - // Use typeof to avoid zero-argument method invocation on host objects (#15151) - var ret; - - if ( typeof context.getElementsByTagName !== "undefined" ) { - ret = context.getElementsByTagName( tag || "*" ); - - } else if ( typeof context.querySelectorAll !== "undefined" ) { - ret = context.querySelectorAll( tag || "*" ); - - } else { - ret = []; - } - - if ( tag === undefined || tag && nodeName( context, tag ) ) { - return jQuery.merge( [ context ], ret ); - } - - return ret; -} - - -// Mark scripts as having already been evaluated -function setGlobalEval( elems, refElements ) { - var i = 0, - l = elems.length; - - for ( ; i < l; i++ ) { - dataPriv.set( - elems[ i ], - "globalEval", - !refElements || dataPriv.get( refElements[ i ], "globalEval" ) - ); - } -} - - -var rhtml = /<|&#?\w+;/; - -function buildFragment( elems, context, scripts, selection, ignored ) { - var elem, tmp, tag, wrap, contains, j, - fragment = context.createDocumentFragment(), - nodes = [], - i = 0, - l = elems.length; - - for ( ; i < l; i++ ) { - elem = elems[ i ]; - - if ( elem || elem === 0 ) { - - // Add nodes directly - if ( jQuery.type( elem ) === "object" ) { - - // Support: Android <=4.0 only, PhantomJS 1 only - // push.apply(_, arraylike) throws on ancient WebKit - jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem ); - - // Convert non-html into a text node - } else if ( !rhtml.test( elem ) ) { - nodes.push( context.createTextNode( elem ) ); - - // Convert html into DOM nodes - } else { - tmp = tmp || fragment.appendChild( context.createElement( "div" ) ); - - // Deserialize a standard representation - tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase(); - wrap = wrapMap[ tag ] || wrapMap._default; - tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ]; - - // Descend through wrappers to the right content - j = wrap[ 0 ]; - while ( j-- ) { - tmp = tmp.lastChild; - } - - // Support: Android <=4.0 only, PhantomJS 1 only - // push.apply(_, arraylike) throws on ancient WebKit - jQuery.merge( nodes, tmp.childNodes ); - - // Remember the top-level container - tmp = fragment.firstChild; - - // Ensure the created nodes are orphaned (#12392) - tmp.textContent = ""; - } - } - } - - // Remove wrapper from fragment - fragment.textContent = ""; - - i = 0; - while ( ( elem = nodes[ i++ ] ) ) { - - // Skip elements already in the context collection (trac-4087) - if ( selection && jQuery.inArray( elem, selection ) > -1 ) { - if ( ignored ) { - ignored.push( elem ); - } - continue; - } - - contains = jQuery.contains( elem.ownerDocument, elem ); - - // Append to fragment - tmp = getAll( fragment.appendChild( elem ), "script" ); - - // Preserve script evaluation history - if ( contains ) { - setGlobalEval( tmp ); - } - - // Capture executables - if ( scripts ) { - j = 0; - while ( ( elem = tmp[ j++ ] ) ) { - if ( rscriptType.test( elem.type || "" ) ) { - scripts.push( elem ); - } - } - } - } - - return fragment; -} - - -( function() { - var fragment = document.createDocumentFragment(), - div = fragment.appendChild( document.createElement( "div" ) ), - input = document.createElement( "input" ); - - // Support: Android 4.0 - 4.3 only - // Check state lost if the name is set (#11217) - // Support: Windows Web Apps (WWA) - // `name` and `type` must use .setAttribute for WWA (#14901) - input.setAttribute( "type", "radio" ); - input.setAttribute( "checked", "checked" ); - input.setAttribute( "name", "t" ); - - div.appendChild( input ); - - // Support: Android <=4.1 only - // Older WebKit doesn't clone checked state correctly in fragments - support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked; - - // Support: IE <=11 only - // Make sure textarea (and checkbox) defaultValue is properly cloned - div.innerHTML = ""; - support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue; -} )(); -var documentElement = document.documentElement; - - - -var - rkeyEvent = /^key/, - rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/, - rtypenamespace = /^([^.]*)(?:\.(.+)|)/; - -function returnTrue() { - return true; -} - -function returnFalse() { - return false; -} - -// Support: IE <=9 only -// See #13393 for more info -function safeActiveElement() { - try { - return document.activeElement; - } catch ( err ) { } -} - -function on( elem, types, selector, data, fn, one ) { - var origFn, type; - - // Types can be a map of types/handlers - if ( typeof types === "object" ) { - - // ( types-Object, selector, data ) - if ( typeof selector !== "string" ) { - - // ( types-Object, data ) - data = data || selector; - selector = undefined; - } - for ( type in types ) { - on( elem, type, selector, data, types[ type ], one ); - } - return elem; - } - - if ( data == null && fn == null ) { - - // ( types, fn ) - fn = selector; - data = selector = undefined; - } else if ( fn == null ) { - if ( typeof selector === "string" ) { - - // ( types, selector, fn ) - fn = data; - data = undefined; - } else { - - // ( types, data, fn ) - fn = data; - data = selector; - selector = undefined; - } - } - if ( fn === false ) { - fn = returnFalse; - } else if ( !fn ) { - return elem; - } - - if ( one === 1 ) { - origFn = fn; - fn = function( event ) { - - // Can use an empty set, since event contains the info - jQuery().off( event ); - return origFn.apply( this, arguments ); - }; - - // Use same guid so caller can remove using origFn - fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ ); - } - return elem.each( function() { - jQuery.event.add( this, types, fn, data, selector ); - } ); -} - -/* - * Helper functions for managing events -- not part of the public interface. - * Props to Dean Edwards' addEvent library for many of the ideas. - */ -jQuery.event = { - - global: {}, - - add: function( elem, types, handler, data, selector ) { - - var handleObjIn, eventHandle, tmp, - events, t, handleObj, - special, handlers, type, namespaces, origType, - elemData = dataPriv.get( elem ); - - // Don't attach events to noData or text/comment nodes (but allow plain objects) - if ( !elemData ) { - return; - } - - // Caller can pass in an object of custom data in lieu of the handler - if ( handler.handler ) { - handleObjIn = handler; - handler = handleObjIn.handler; - selector = handleObjIn.selector; - } - - // Ensure that invalid selectors throw exceptions at attach time - // Evaluate against documentElement in case elem is a non-element node (e.g., document) - if ( selector ) { - jQuery.find.matchesSelector( documentElement, selector ); - } - - // Make sure that the handler has a unique ID, used to find/remove it later - if ( !handler.guid ) { - handler.guid = jQuery.guid++; - } - - // Init the element's event structure and main handler, if this is the first - if ( !( events = elemData.events ) ) { - events = elemData.events = {}; - } - if ( !( eventHandle = elemData.handle ) ) { - eventHandle = elemData.handle = function( e ) { - - // Discard the second event of a jQuery.event.trigger() and - // when an event is called after a page has unloaded - return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ? - jQuery.event.dispatch.apply( elem, arguments ) : undefined; - }; - } - - // Handle multiple events separated by a space - types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; - t = types.length; - while ( t-- ) { - tmp = rtypenamespace.exec( types[ t ] ) || []; - type = origType = tmp[ 1 ]; - namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); - - // There *must* be a type, no attaching namespace-only handlers - if ( !type ) { - continue; - } - - // If event changes its type, use the special event handlers for the changed type - special = jQuery.event.special[ type ] || {}; - - // If selector defined, determine special event api type, otherwise given type - type = ( selector ? special.delegateType : special.bindType ) || type; - - // Update special based on newly reset type - special = jQuery.event.special[ type ] || {}; - - // handleObj is passed to all event handlers - handleObj = jQuery.extend( { - type: type, - origType: origType, - data: data, - handler: handler, - guid: handler.guid, - selector: selector, - needsContext: selector && jQuery.expr.match.needsContext.test( selector ), - namespace: namespaces.join( "." ) - }, handleObjIn ); - - // Init the event handler queue if we're the first - if ( !( handlers = events[ type ] ) ) { - handlers = events[ type ] = []; - handlers.delegateCount = 0; - - // Only use addEventListener if the special events handler returns false - if ( !special.setup || - special.setup.call( elem, data, namespaces, eventHandle ) === false ) { - - if ( elem.addEventListener ) { - elem.addEventListener( type, eventHandle ); - } - } - } - - if ( special.add ) { - special.add.call( elem, handleObj ); - - if ( !handleObj.handler.guid ) { - handleObj.handler.guid = handler.guid; - } - } - - // Add to the element's handler list, delegates in front - if ( selector ) { - handlers.splice( handlers.delegateCount++, 0, handleObj ); - } else { - handlers.push( handleObj ); - } - - // Keep track of which events have ever been used, for event optimization - jQuery.event.global[ type ] = true; - } - - }, - - // Detach an event or set of events from an element - remove: function( elem, types, handler, selector, mappedTypes ) { - - var j, origCount, tmp, - events, t, handleObj, - special, handlers, type, namespaces, origType, - elemData = dataPriv.hasData( elem ) && dataPriv.get( elem ); - - if ( !elemData || !( events = elemData.events ) ) { - return; - } - - // Once for each type.namespace in types; type may be omitted - types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; - t = types.length; - while ( t-- ) { - tmp = rtypenamespace.exec( types[ t ] ) || []; - type = origType = tmp[ 1 ]; - namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); - - // Unbind all events (on this namespace, if provided) for the element - if ( !type ) { - for ( type in events ) { - jQuery.event.remove( elem, type + types[ t ], handler, selector, true ); - } - continue; - } - - special = jQuery.event.special[ type ] || {}; - type = ( selector ? special.delegateType : special.bindType ) || type; - handlers = events[ type ] || []; - tmp = tmp[ 2 ] && - new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ); - - // Remove matching events - origCount = j = handlers.length; - while ( j-- ) { - handleObj = handlers[ j ]; - - if ( ( mappedTypes || origType === handleObj.origType ) && - ( !handler || handler.guid === handleObj.guid ) && - ( !tmp || tmp.test( handleObj.namespace ) ) && - ( !selector || selector === handleObj.selector || - selector === "**" && handleObj.selector ) ) { - handlers.splice( j, 1 ); - - if ( handleObj.selector ) { - handlers.delegateCount--; - } - if ( special.remove ) { - special.remove.call( elem, handleObj ); - } - } - } - - // Remove generic event handler if we removed something and no more handlers exist - // (avoids potential for endless recursion during removal of special event handlers) - if ( origCount && !handlers.length ) { - if ( !special.teardown || - special.teardown.call( elem, namespaces, elemData.handle ) === false ) { - - jQuery.removeEvent( elem, type, elemData.handle ); - } - - delete events[ type ]; - } - } - - // Remove data and the expando if it's no longer used - if ( jQuery.isEmptyObject( events ) ) { - dataPriv.remove( elem, "handle events" ); - } - }, - - dispatch: function( nativeEvent ) { - - // Make a writable jQuery.Event from the native event object - var event = jQuery.event.fix( nativeEvent ); - - var i, j, ret, matched, handleObj, handlerQueue, - args = new Array( arguments.length ), - handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [], - special = jQuery.event.special[ event.type ] || {}; - - // Use the fix-ed jQuery.Event rather than the (read-only) native event - args[ 0 ] = event; - - for ( i = 1; i < arguments.length; i++ ) { - args[ i ] = arguments[ i ]; - } - - event.delegateTarget = this; - - // Call the preDispatch hook for the mapped type, and let it bail if desired - if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) { - return; - } - - // Determine handlers - handlerQueue = jQuery.event.handlers.call( this, event, handlers ); - - // Run delegates first; they may want to stop propagation beneath us - i = 0; - while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) { - event.currentTarget = matched.elem; - - j = 0; - while ( ( handleObj = matched.handlers[ j++ ] ) && - !event.isImmediatePropagationStopped() ) { - - // Triggered event must either 1) have no namespace, or 2) have namespace(s) - // a subset or equal to those in the bound event (both can have no namespace). - if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) { - - event.handleObj = handleObj; - event.data = handleObj.data; - - ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle || - handleObj.handler ).apply( matched.elem, args ); - - if ( ret !== undefined ) { - if ( ( event.result = ret ) === false ) { - event.preventDefault(); - event.stopPropagation(); - } - } - } - } - } - - // Call the postDispatch hook for the mapped type - if ( special.postDispatch ) { - special.postDispatch.call( this, event ); - } - - return event.result; - }, - - handlers: function( event, handlers ) { - var i, handleObj, sel, matchedHandlers, matchedSelectors, - handlerQueue = [], - delegateCount = handlers.delegateCount, - cur = event.target; - - // Find delegate handlers - if ( delegateCount && - - // Support: IE <=9 - // Black-hole SVG instance trees (trac-13180) - cur.nodeType && - - // Support: Firefox <=42 - // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861) - // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click - // Support: IE 11 only - // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343) - !( event.type === "click" && event.button >= 1 ) ) { - - for ( ; cur !== this; cur = cur.parentNode || this ) { - - // Don't check non-elements (#13208) - // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764) - if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) { - matchedHandlers = []; - matchedSelectors = {}; - for ( i = 0; i < delegateCount; i++ ) { - handleObj = handlers[ i ]; - - // Don't conflict with Object.prototype properties (#13203) - sel = handleObj.selector + " "; - - if ( matchedSelectors[ sel ] === undefined ) { - matchedSelectors[ sel ] = handleObj.needsContext ? - jQuery( sel, this ).index( cur ) > -1 : - jQuery.find( sel, this, null, [ cur ] ).length; - } - if ( matchedSelectors[ sel ] ) { - matchedHandlers.push( handleObj ); - } - } - if ( matchedHandlers.length ) { - handlerQueue.push( { elem: cur, handlers: matchedHandlers } ); - } - } - } - } - - // Add the remaining (directly-bound) handlers - cur = this; - if ( delegateCount < handlers.length ) { - handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } ); - } - - return handlerQueue; - }, - - addProp: function( name, hook ) { - Object.defineProperty( jQuery.Event.prototype, name, { - enumerable: true, - configurable: true, - - get: jQuery.isFunction( hook ) ? - function() { - if ( this.originalEvent ) { - return hook( this.originalEvent ); - } - } : - function() { - if ( this.originalEvent ) { - return this.originalEvent[ name ]; - } - }, - - set: function( value ) { - Object.defineProperty( this, name, { - enumerable: true, - configurable: true, - writable: true, - value: value - } ); - } - } ); - }, - - fix: function( originalEvent ) { - return originalEvent[ jQuery.expando ] ? - originalEvent : - new jQuery.Event( originalEvent ); - }, - - special: { - load: { - - // Prevent triggered image.load events from bubbling to window.load - noBubble: true - }, - focus: { - - // Fire native event if possible so blur/focus sequence is correct - trigger: function() { - if ( this !== safeActiveElement() && this.focus ) { - this.focus(); - return false; - } - }, - delegateType: "focusin" - }, - blur: { - trigger: function() { - if ( this === safeActiveElement() && this.blur ) { - this.blur(); - return false; - } - }, - delegateType: "focusout" - }, - click: { - - // For checkbox, fire native event so checked state will be right - trigger: function() { - if ( this.type === "checkbox" && this.click && nodeName( this, "input" ) ) { - this.click(); - return false; - } - }, - - // For cross-browser consistency, don't fire native .click() on links - _default: function( event ) { - return nodeName( event.target, "a" ); - } - }, - - beforeunload: { - postDispatch: function( event ) { - - // Support: Firefox 20+ - // Firefox doesn't alert if the returnValue field is not set. - if ( event.result !== undefined && event.originalEvent ) { - event.originalEvent.returnValue = event.result; - } - } - } - } -}; - -jQuery.removeEvent = function( elem, type, handle ) { - - // This "if" is needed for plain objects - if ( elem.removeEventListener ) { - elem.removeEventListener( type, handle ); - } -}; - -jQuery.Event = function( src, props ) { - - // Allow instantiation without the 'new' keyword - if ( !( this instanceof jQuery.Event ) ) { - return new jQuery.Event( src, props ); - } - - // Event object - if ( src && src.type ) { - this.originalEvent = src; - this.type = src.type; - - // Events bubbling up the document may have been marked as prevented - // by a handler lower down the tree; reflect the correct value. - this.isDefaultPrevented = src.defaultPrevented || - src.defaultPrevented === undefined && - - // Support: Android <=2.3 only - src.returnValue === false ? - returnTrue : - returnFalse; - - // Create target properties - // Support: Safari <=6 - 7 only - // Target should not be a text node (#504, #13143) - this.target = ( src.target && src.target.nodeType === 3 ) ? - src.target.parentNode : - src.target; - - this.currentTarget = src.currentTarget; - this.relatedTarget = src.relatedTarget; - - // Event type - } else { - this.type = src; - } - - // Put explicitly provided properties onto the event object - if ( props ) { - jQuery.extend( this, props ); - } - - // Create a timestamp if incoming event doesn't have one - this.timeStamp = src && src.timeStamp || jQuery.now(); - - // Mark it as fixed - this[ jQuery.expando ] = true; -}; - -// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding -// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html -jQuery.Event.prototype = { - constructor: jQuery.Event, - isDefaultPrevented: returnFalse, - isPropagationStopped: returnFalse, - isImmediatePropagationStopped: returnFalse, - isSimulated: false, - - preventDefault: function() { - var e = this.originalEvent; - - this.isDefaultPrevented = returnTrue; - - if ( e && !this.isSimulated ) { - e.preventDefault(); - } - }, - stopPropagation: function() { - var e = this.originalEvent; - - this.isPropagationStopped = returnTrue; - - if ( e && !this.isSimulated ) { - e.stopPropagation(); - } - }, - stopImmediatePropagation: function() { - var e = this.originalEvent; - - this.isImmediatePropagationStopped = returnTrue; - - if ( e && !this.isSimulated ) { - e.stopImmediatePropagation(); - } - - this.stopPropagation(); - } -}; - -// Includes all common event props including KeyEvent and MouseEvent specific props -jQuery.each( { - altKey: true, - bubbles: true, - cancelable: true, - changedTouches: true, - ctrlKey: true, - detail: true, - eventPhase: true, - metaKey: true, - pageX: true, - pageY: true, - shiftKey: true, - view: true, - "char": true, - charCode: true, - key: true, - keyCode: true, - button: true, - buttons: true, - clientX: true, - clientY: true, - offsetX: true, - offsetY: true, - pointerId: true, - pointerType: true, - screenX: true, - screenY: true, - targetTouches: true, - toElement: true, - touches: true, - - which: function( event ) { - var button = event.button; - - // Add which for key events - if ( event.which == null && rkeyEvent.test( event.type ) ) { - return event.charCode != null ? event.charCode : event.keyCode; - } - - // Add which for click: 1 === left; 2 === middle; 3 === right - if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) { - if ( button & 1 ) { - return 1; - } - - if ( button & 2 ) { - return 3; - } - - if ( button & 4 ) { - return 2; - } - - return 0; - } - - return event.which; - } -}, jQuery.event.addProp ); - -// Create mouseenter/leave events using mouseover/out and event-time checks -// so that event delegation works in jQuery. -// Do the same for pointerenter/pointerleave and pointerover/pointerout -// -// Support: Safari 7 only -// Safari sends mouseenter too often; see: -// https://bugs.chromium.org/p/chromium/issues/detail?id=470258 -// for the description of the bug (it existed in older Chrome versions as well). -jQuery.each( { - mouseenter: "mouseover", - mouseleave: "mouseout", - pointerenter: "pointerover", - pointerleave: "pointerout" -}, function( orig, fix ) { - jQuery.event.special[ orig ] = { - delegateType: fix, - bindType: fix, - - handle: function( event ) { - var ret, - target = this, - related = event.relatedTarget, - handleObj = event.handleObj; - - // For mouseenter/leave call the handler if related is outside the target. - // NB: No relatedTarget if the mouse left/entered the browser window - if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) { - event.type = handleObj.origType; - ret = handleObj.handler.apply( this, arguments ); - event.type = fix; - } - return ret; - } - }; -} ); - -jQuery.fn.extend( { - - on: function( types, selector, data, fn ) { - return on( this, types, selector, data, fn ); - }, - one: function( types, selector, data, fn ) { - return on( this, types, selector, data, fn, 1 ); - }, - off: function( types, selector, fn ) { - var handleObj, type; - if ( types && types.preventDefault && types.handleObj ) { - - // ( event ) dispatched jQuery.Event - handleObj = types.handleObj; - jQuery( types.delegateTarget ).off( - handleObj.namespace ? - handleObj.origType + "." + handleObj.namespace : - handleObj.origType, - handleObj.selector, - handleObj.handler - ); - return this; - } - if ( typeof types === "object" ) { - - // ( types-object [, selector] ) - for ( type in types ) { - this.off( type, selector, types[ type ] ); - } - return this; - } - if ( selector === false || typeof selector === "function" ) { - - // ( types [, fn] ) - fn = selector; - selector = undefined; - } - if ( fn === false ) { - fn = returnFalse; - } - return this.each( function() { - jQuery.event.remove( this, types, fn, selector ); - } ); - } -} ); - - -var - - /* eslint-disable max-len */ - - // See https://github.com/eslint/eslint/issues/3229 - rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi, - - /* eslint-enable */ - - // Support: IE <=10 - 11, Edge 12 - 13 - // In IE/Edge using regex groups here causes severe slowdowns. - // See https://connect.microsoft.com/IE/feedback/details/1736512/ - rnoInnerhtml = /\s*$/g; - -// Prefer a tbody over its parent table for containing new rows -function manipulationTarget( elem, content ) { - if ( nodeName( elem, "table" ) && - nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) { - - return jQuery( ">tbody", elem )[ 0 ] || elem; - } - - return elem; -} - -// Replace/restore the type attribute of script elements for safe DOM manipulation -function disableScript( elem ) { - elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type; - return elem; -} -function restoreScript( elem ) { - var match = rscriptTypeMasked.exec( elem.type ); - - if ( match ) { - elem.type = match[ 1 ]; - } else { - elem.removeAttribute( "type" ); - } - - return elem; -} - -function cloneCopyEvent( src, dest ) { - var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events; - - if ( dest.nodeType !== 1 ) { - return; - } - - // 1. Copy private data: events, handlers, etc. - if ( dataPriv.hasData( src ) ) { - pdataOld = dataPriv.access( src ); - pdataCur = dataPriv.set( dest, pdataOld ); - events = pdataOld.events; - - if ( events ) { - delete pdataCur.handle; - pdataCur.events = {}; - - for ( type in events ) { - for ( i = 0, l = events[ type ].length; i < l; i++ ) { - jQuery.event.add( dest, type, events[ type ][ i ] ); - } - } - } - } - - // 2. Copy user data - if ( dataUser.hasData( src ) ) { - udataOld = dataUser.access( src ); - udataCur = jQuery.extend( {}, udataOld ); - - dataUser.set( dest, udataCur ); - } -} - -// Fix IE bugs, see support tests -function fixInput( src, dest ) { - var nodeName = dest.nodeName.toLowerCase(); - - // Fails to persist the checked state of a cloned checkbox or radio button. - if ( nodeName === "input" && rcheckableType.test( src.type ) ) { - dest.checked = src.checked; - - // Fails to return the selected option to the default selected state when cloning options - } else if ( nodeName === "input" || nodeName === "textarea" ) { - dest.defaultValue = src.defaultValue; - } -} - -function domManip( collection, args, callback, ignored ) { - - // Flatten any nested arrays - args = concat.apply( [], args ); - - var fragment, first, scripts, hasScripts, node, doc, - i = 0, - l = collection.length, - iNoClone = l - 1, - value = args[ 0 ], - isFunction = jQuery.isFunction( value ); - - // We can't cloneNode fragments that contain checked, in WebKit - if ( isFunction || - ( l > 1 && typeof value === "string" && - !support.checkClone && rchecked.test( value ) ) ) { - return collection.each( function( index ) { - var self = collection.eq( index ); - if ( isFunction ) { - args[ 0 ] = value.call( this, index, self.html() ); - } - domManip( self, args, callback, ignored ); - } ); - } - - if ( l ) { - fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored ); - first = fragment.firstChild; - - if ( fragment.childNodes.length === 1 ) { - fragment = first; - } - - // Require either new content or an interest in ignored elements to invoke the callback - if ( first || ignored ) { - scripts = jQuery.map( getAll( fragment, "script" ), disableScript ); - hasScripts = scripts.length; - - // Use the original fragment for the last item - // instead of the first because it can end up - // being emptied incorrectly in certain situations (#8070). - for ( ; i < l; i++ ) { - node = fragment; - - if ( i !== iNoClone ) { - node = jQuery.clone( node, true, true ); - - // Keep references to cloned scripts for later restoration - if ( hasScripts ) { - - // Support: Android <=4.0 only, PhantomJS 1 only - // push.apply(_, arraylike) throws on ancient WebKit - jQuery.merge( scripts, getAll( node, "script" ) ); - } - } - - callback.call( collection[ i ], node, i ); - } - - if ( hasScripts ) { - doc = scripts[ scripts.length - 1 ].ownerDocument; - - // Reenable scripts - jQuery.map( scripts, restoreScript ); - - // Evaluate executable scripts on first document insertion - for ( i = 0; i < hasScripts; i++ ) { - node = scripts[ i ]; - if ( rscriptType.test( node.type || "" ) && - !dataPriv.access( node, "globalEval" ) && - jQuery.contains( doc, node ) ) { - - if ( node.src ) { - - // Optional AJAX dependency, but won't run scripts if not present - if ( jQuery._evalUrl ) { - jQuery._evalUrl( node.src ); - } - } else { - DOMEval( node.textContent.replace( rcleanScript, "" ), doc ); - } - } - } - } - } - } - - return collection; -} - -function remove( elem, selector, keepData ) { - var node, - nodes = selector ? jQuery.filter( selector, elem ) : elem, - i = 0; - - for ( ; ( node = nodes[ i ] ) != null; i++ ) { - if ( !keepData && node.nodeType === 1 ) { - jQuery.cleanData( getAll( node ) ); - } - - if ( node.parentNode ) { - if ( keepData && jQuery.contains( node.ownerDocument, node ) ) { - setGlobalEval( getAll( node, "script" ) ); - } - node.parentNode.removeChild( node ); - } - } - - return elem; -} - -jQuery.extend( { - htmlPrefilter: function( html ) { - return html.replace( rxhtmlTag, "<$1>" ); - }, - - clone: function( elem, dataAndEvents, deepDataAndEvents ) { - var i, l, srcElements, destElements, - clone = elem.cloneNode( true ), - inPage = jQuery.contains( elem.ownerDocument, elem ); - - // Fix IE cloning issues - if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) && - !jQuery.isXMLDoc( elem ) ) { - - // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2 - destElements = getAll( clone ); - srcElements = getAll( elem ); - - for ( i = 0, l = srcElements.length; i < l; i++ ) { - fixInput( srcElements[ i ], destElements[ i ] ); - } - } - - // Copy the events from the original to the clone - if ( dataAndEvents ) { - if ( deepDataAndEvents ) { - srcElements = srcElements || getAll( elem ); - destElements = destElements || getAll( clone ); - - for ( i = 0, l = srcElements.length; i < l; i++ ) { - cloneCopyEvent( srcElements[ i ], destElements[ i ] ); - } - } else { - cloneCopyEvent( elem, clone ); - } - } - - // Preserve script evaluation history - destElements = getAll( clone, "script" ); - if ( destElements.length > 0 ) { - setGlobalEval( destElements, !inPage && getAll( elem, "script" ) ); - } - - // Return the cloned set - return clone; - }, - - cleanData: function( elems ) { - var data, elem, type, - special = jQuery.event.special, - i = 0; - - for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) { - if ( acceptData( elem ) ) { - if ( ( data = elem[ dataPriv.expando ] ) ) { - if ( data.events ) { - for ( type in data.events ) { - if ( special[ type ] ) { - jQuery.event.remove( elem, type ); - - // This is a shortcut to avoid jQuery.event.remove's overhead - } else { - jQuery.removeEvent( elem, type, data.handle ); - } - } - } - - // Support: Chrome <=35 - 45+ - // Assign undefined instead of using delete, see Data#remove - elem[ dataPriv.expando ] = undefined; - } - if ( elem[ dataUser.expando ] ) { - - // Support: Chrome <=35 - 45+ - // Assign undefined instead of using delete, see Data#remove - elem[ dataUser.expando ] = undefined; - } - } - } - } -} ); - -jQuery.fn.extend( { - detach: function( selector ) { - return remove( this, selector, true ); - }, - - remove: function( selector ) { - return remove( this, selector ); - }, - - text: function( value ) { - return access( this, function( value ) { - return value === undefined ? - jQuery.text( this ) : - this.empty().each( function() { - if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { - this.textContent = value; - } - } ); - }, null, value, arguments.length ); - }, - - append: function() { - return domManip( this, arguments, function( elem ) { - if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { - var target = manipulationTarget( this, elem ); - target.appendChild( elem ); - } - } ); - }, - - prepend: function() { - return domManip( this, arguments, function( elem ) { - if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { - var target = manipulationTarget( this, elem ); - target.insertBefore( elem, target.firstChild ); - } - } ); - }, - - before: function() { - return domManip( this, arguments, function( elem ) { - if ( this.parentNode ) { - this.parentNode.insertBefore( elem, this ); - } - } ); - }, - - after: function() { - return domManip( this, arguments, function( elem ) { - if ( this.parentNode ) { - this.parentNode.insertBefore( elem, this.nextSibling ); - } - } ); - }, - - empty: function() { - var elem, - i = 0; - - for ( ; ( elem = this[ i ] ) != null; i++ ) { - if ( elem.nodeType === 1 ) { - - // Prevent memory leaks - jQuery.cleanData( getAll( elem, false ) ); - - // Remove any remaining nodes - elem.textContent = ""; - } - } - - return this; - }, - - clone: function( dataAndEvents, deepDataAndEvents ) { - dataAndEvents = dataAndEvents == null ? false : dataAndEvents; - deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents; - - return this.map( function() { - return jQuery.clone( this, dataAndEvents, deepDataAndEvents ); - } ); - }, - - html: function( value ) { - return access( this, function( value ) { - var elem = this[ 0 ] || {}, - i = 0, - l = this.length; - - if ( value === undefined && elem.nodeType === 1 ) { - return elem.innerHTML; - } - - // See if we can take a shortcut and just use innerHTML - if ( typeof value === "string" && !rnoInnerhtml.test( value ) && - !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) { - - value = jQuery.htmlPrefilter( value ); - - try { - for ( ; i < l; i++ ) { - elem = this[ i ] || {}; - - // Remove element nodes and prevent memory leaks - if ( elem.nodeType === 1 ) { - jQuery.cleanData( getAll( elem, false ) ); - elem.innerHTML = value; - } - } - - elem = 0; - - // If using innerHTML throws an exception, use the fallback method - } catch ( e ) {} - } - - if ( elem ) { - this.empty().append( value ); - } - }, null, value, arguments.length ); - }, - - replaceWith: function() { - var ignored = []; - - // Make the changes, replacing each non-ignored context element with the new content - return domManip( this, arguments, function( elem ) { - var parent = this.parentNode; - - if ( jQuery.inArray( this, ignored ) < 0 ) { - jQuery.cleanData( getAll( this ) ); - if ( parent ) { - parent.replaceChild( elem, this ); - } - } - - // Force callback invocation - }, ignored ); - } -} ); - -jQuery.each( { - appendTo: "append", - prependTo: "prepend", - insertBefore: "before", - insertAfter: "after", - replaceAll: "replaceWith" -}, function( name, original ) { - jQuery.fn[ name ] = function( selector ) { - var elems, - ret = [], - insert = jQuery( selector ), - last = insert.length - 1, - i = 0; - - for ( ; i <= last; i++ ) { - elems = i === last ? this : this.clone( true ); - jQuery( insert[ i ] )[ original ]( elems ); - - // Support: Android <=4.0 only, PhantomJS 1 only - // .get() because push.apply(_, arraylike) throws on ancient WebKit - push.apply( ret, elems.get() ); - } - - return this.pushStack( ret ); - }; -} ); -var rmargin = ( /^margin/ ); - -var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" ); - -var getStyles = function( elem ) { - - // Support: IE <=11 only, Firefox <=30 (#15098, #14150) - // IE throws on elements created in popups - // FF meanwhile throws on frame elements through "defaultView.getComputedStyle" - var view = elem.ownerDocument.defaultView; - - if ( !view || !view.opener ) { - view = window; - } - - return view.getComputedStyle( elem ); - }; - - - -( function() { - - // Executing both pixelPosition & boxSizingReliable tests require only one layout - // so they're executed at the same time to save the second computation. - function computeStyleTests() { - - // This is a singleton, we need to execute it only once - if ( !div ) { - return; - } - - div.style.cssText = - "box-sizing:border-box;" + - "position:relative;display:block;" + - "margin:auto;border:1px;padding:1px;" + - "top:1%;width:50%"; - div.innerHTML = ""; - documentElement.appendChild( container ); - - var divStyle = window.getComputedStyle( div ); - pixelPositionVal = divStyle.top !== "1%"; - - // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44 - reliableMarginLeftVal = divStyle.marginLeft === "2px"; - boxSizingReliableVal = divStyle.width === "4px"; - - // Support: Android 4.0 - 4.3 only - // Some styles come back with percentage values, even though they shouldn't - div.style.marginRight = "50%"; - pixelMarginRightVal = divStyle.marginRight === "4px"; - - documentElement.removeChild( container ); - - // Nullify the div so it wouldn't be stored in the memory and - // it will also be a sign that checks already performed - div = null; - } - - var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal, - container = document.createElement( "div" ), - div = document.createElement( "div" ); - - // Finish early in limited (non-browser) environments - if ( !div.style ) { - return; - } - - // Support: IE <=9 - 11 only - // Style of cloned element affects source element cloned (#8908) - div.style.backgroundClip = "content-box"; - div.cloneNode( true ).style.backgroundClip = ""; - support.clearCloneStyle = div.style.backgroundClip === "content-box"; - - container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" + - "padding:0;margin-top:1px;position:absolute"; - container.appendChild( div ); - - jQuery.extend( support, { - pixelPosition: function() { - computeStyleTests(); - return pixelPositionVal; - }, - boxSizingReliable: function() { - computeStyleTests(); - return boxSizingReliableVal; - }, - pixelMarginRight: function() { - computeStyleTests(); - return pixelMarginRightVal; - }, - reliableMarginLeft: function() { - computeStyleTests(); - return reliableMarginLeftVal; - } - } ); -} )(); - - -function curCSS( elem, name, computed ) { - var width, minWidth, maxWidth, ret, - - // Support: Firefox 51+ - // Retrieving style before computed somehow - // fixes an issue with getting wrong values - // on detached elements - style = elem.style; - - computed = computed || getStyles( elem ); - - // getPropertyValue is needed for: - // .css('filter') (IE 9 only, #12537) - // .css('--customProperty) (#3144) - if ( computed ) { - ret = computed.getPropertyValue( name ) || computed[ name ]; - - if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) { - ret = jQuery.style( elem, name ); - } - - // A tribute to the "awesome hack by Dean Edwards" - // Android Browser returns percentage for some values, - // but width seems to be reliably pixels. - // This is against the CSSOM draft spec: - // https://drafts.csswg.org/cssom/#resolved-values - if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) { - - // Remember the original values - width = style.width; - minWidth = style.minWidth; - maxWidth = style.maxWidth; - - // Put in the new values to get a computed value out - style.minWidth = style.maxWidth = style.width = ret; - ret = computed.width; - - // Revert the changed values - style.width = width; - style.minWidth = minWidth; - style.maxWidth = maxWidth; - } - } - - return ret !== undefined ? - - // Support: IE <=9 - 11 only - // IE returns zIndex value as an integer. - ret + "" : - ret; -} - - -function addGetHookIf( conditionFn, hookFn ) { - - // Define the hook, we'll check on the first run if it's really needed. - return { - get: function() { - if ( conditionFn() ) { - - // Hook not needed (or it's not possible to use it due - // to missing dependency), remove it. - delete this.get; - return; - } - - // Hook needed; redefine it so that the support test is not executed again. - return ( this.get = hookFn ).apply( this, arguments ); - } - }; -} - - -var - - // Swappable if display is none or starts with table - // except "table", "table-cell", or "table-caption" - // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display - rdisplayswap = /^(none|table(?!-c[ea]).+)/, - rcustomProp = /^--/, - cssShow = { position: "absolute", visibility: "hidden", display: "block" }, - cssNormalTransform = { - letterSpacing: "0", - fontWeight: "400" - }, - - cssPrefixes = [ "Webkit", "Moz", "ms" ], - emptyStyle = document.createElement( "div" ).style; - -// Return a css property mapped to a potentially vendor prefixed property -function vendorPropName( name ) { - - // Shortcut for names that are not vendor prefixed - if ( name in emptyStyle ) { - return name; - } - - // Check for vendor prefixed names - var capName = name[ 0 ].toUpperCase() + name.slice( 1 ), - i = cssPrefixes.length; - - while ( i-- ) { - name = cssPrefixes[ i ] + capName; - if ( name in emptyStyle ) { - return name; - } - } -} - -// Return a property mapped along what jQuery.cssProps suggests or to -// a vendor prefixed property. -function finalPropName( name ) { - var ret = jQuery.cssProps[ name ]; - if ( !ret ) { - ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name; - } - return ret; -} - -function setPositiveNumber( elem, value, subtract ) { - - // Any relative (+/-) values have already been - // normalized at this point - var matches = rcssNum.exec( value ); - return matches ? - - // Guard against undefined "subtract", e.g., when used as in cssHooks - Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) : - value; -} - -function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) { - var i, - val = 0; - - // If we already have the right measurement, avoid augmentation - if ( extra === ( isBorderBox ? "border" : "content" ) ) { - i = 4; - - // Otherwise initialize for horizontal or vertical properties - } else { - i = name === "width" ? 1 : 0; - } - - for ( ; i < 4; i += 2 ) { - - // Both box models exclude margin, so add it if we want it - if ( extra === "margin" ) { - val += jQuery.css( elem, extra + cssExpand[ i ], true, styles ); - } - - if ( isBorderBox ) { - - // border-box includes padding, so remove it if we want content - if ( extra === "content" ) { - val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); - } - - // At this point, extra isn't border nor margin, so remove border - if ( extra !== "margin" ) { - val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); - } - } else { - - // At this point, extra isn't content, so add padding - val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); - - // At this point, extra isn't content nor padding, so add border - if ( extra !== "padding" ) { - val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); - } - } - } - - return val; -} - -function getWidthOrHeight( elem, name, extra ) { - - // Start with computed style - var valueIsBorderBox, - styles = getStyles( elem ), - val = curCSS( elem, name, styles ), - isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box"; - - // Computed unit is not pixels. Stop here and return. - if ( rnumnonpx.test( val ) ) { - return val; - } - - // Check for style in case a browser which returns unreliable values - // for getComputedStyle silently falls back to the reliable elem.style - valueIsBorderBox = isBorderBox && - ( support.boxSizingReliable() || val === elem.style[ name ] ); - - // Fall back to offsetWidth/Height when value is "auto" - // This happens for inline elements with no explicit setting (gh-3571) - if ( val === "auto" ) { - val = elem[ "offset" + name[ 0 ].toUpperCase() + name.slice( 1 ) ]; - } - - // Normalize "", auto, and prepare for extra - val = parseFloat( val ) || 0; - - // Use the active box-sizing model to add/subtract irrelevant styles - return ( val + - augmentWidthOrHeight( - elem, - name, - extra || ( isBorderBox ? "border" : "content" ), - valueIsBorderBox, - styles - ) - ) + "px"; -} - -jQuery.extend( { - - // Add in style property hooks for overriding the default - // behavior of getting and setting a style property - cssHooks: { - opacity: { - get: function( elem, computed ) { - if ( computed ) { - - // We should always get a number back from opacity - var ret = curCSS( elem, "opacity" ); - return ret === "" ? "1" : ret; - } - } - } - }, - - // Don't automatically add "px" to these possibly-unitless properties - cssNumber: { - "animationIterationCount": true, - "columnCount": true, - "fillOpacity": true, - "flexGrow": true, - "flexShrink": true, - "fontWeight": true, - "lineHeight": true, - "opacity": true, - "order": true, - "orphans": true, - "widows": true, - "zIndex": true, - "zoom": true - }, - - // Add in properties whose names you wish to fix before - // setting or getting the value - cssProps: { - "float": "cssFloat" - }, - - // Get and set the style property on a DOM Node - style: function( elem, name, value, extra ) { - - // Don't set styles on text and comment nodes - if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) { - return; - } - - // Make sure that we're working with the right name - var ret, type, hooks, - origName = jQuery.camelCase( name ), - isCustomProp = rcustomProp.test( name ), - style = elem.style; - - // Make sure that we're working with the right name. We don't - // want to query the value if it is a CSS custom property - // since they are user-defined. - if ( !isCustomProp ) { - name = finalPropName( origName ); - } - - // Gets hook for the prefixed version, then unprefixed version - hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ]; - - // Check if we're setting a value - if ( value !== undefined ) { - type = typeof value; - - // Convert "+=" or "-=" to relative numbers (#7345) - if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) { - value = adjustCSS( elem, name, ret ); - - // Fixes bug #9237 - type = "number"; - } - - // Make sure that null and NaN values aren't set (#7116) - if ( value == null || value !== value ) { - return; - } - - // If a number was passed in, add the unit (except for certain CSS properties) - if ( type === "number" ) { - value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" ); - } - - // background-* props affect original clone's values - if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) { - style[ name ] = "inherit"; - } - - // If a hook was provided, use that value, otherwise just set the specified value - if ( !hooks || !( "set" in hooks ) || - ( value = hooks.set( elem, value, extra ) ) !== undefined ) { - - if ( isCustomProp ) { - style.setProperty( name, value ); - } else { - style[ name ] = value; - } - } - - } else { - - // If a hook was provided get the non-computed value from there - if ( hooks && "get" in hooks && - ( ret = hooks.get( elem, false, extra ) ) !== undefined ) { - - return ret; - } - - // Otherwise just get the value from the style object - return style[ name ]; - } - }, - - css: function( elem, name, extra, styles ) { - var val, num, hooks, - origName = jQuery.camelCase( name ), - isCustomProp = rcustomProp.test( name ); - - // Make sure that we're working with the right name. We don't - // want to modify the value if it is a CSS custom property - // since they are user-defined. - if ( !isCustomProp ) { - name = finalPropName( origName ); - } - - // Try prefixed name followed by the unprefixed name - hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ]; - - // If a hook was provided get the computed value from there - if ( hooks && "get" in hooks ) { - val = hooks.get( elem, true, extra ); - } - - // Otherwise, if a way to get the computed value exists, use that - if ( val === undefined ) { - val = curCSS( elem, name, styles ); - } - - // Convert "normal" to computed value - if ( val === "normal" && name in cssNormalTransform ) { - val = cssNormalTransform[ name ]; - } - - // Make numeric if forced or a qualifier was provided and val looks numeric - if ( extra === "" || extra ) { - num = parseFloat( val ); - return extra === true || isFinite( num ) ? num || 0 : val; - } - - return val; - } -} ); - -jQuery.each( [ "height", "width" ], function( i, name ) { - jQuery.cssHooks[ name ] = { - get: function( elem, computed, extra ) { - if ( computed ) { - - // Certain elements can have dimension info if we invisibly show them - // but it must have a current display style that would benefit - return rdisplayswap.test( jQuery.css( elem, "display" ) ) && - - // Support: Safari 8+ - // Table columns in Safari have non-zero offsetWidth & zero - // getBoundingClientRect().width unless display is changed. - // Support: IE <=11 only - // Running getBoundingClientRect on a disconnected node - // in IE throws an error. - ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ? - swap( elem, cssShow, function() { - return getWidthOrHeight( elem, name, extra ); - } ) : - getWidthOrHeight( elem, name, extra ); - } - }, - - set: function( elem, value, extra ) { - var matches, - styles = extra && getStyles( elem ), - subtract = extra && augmentWidthOrHeight( - elem, - name, - extra, - jQuery.css( elem, "boxSizing", false, styles ) === "border-box", - styles - ); - - // Convert to pixels if value adjustment is needed - if ( subtract && ( matches = rcssNum.exec( value ) ) && - ( matches[ 3 ] || "px" ) !== "px" ) { - - elem.style[ name ] = value; - value = jQuery.css( elem, name ); - } - - return setPositiveNumber( elem, value, subtract ); - } - }; -} ); - -jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft, - function( elem, computed ) { - if ( computed ) { - return ( parseFloat( curCSS( elem, "marginLeft" ) ) || - elem.getBoundingClientRect().left - - swap( elem, { marginLeft: 0 }, function() { - return elem.getBoundingClientRect().left; - } ) - ) + "px"; - } - } -); - -// These hooks are used by animate to expand properties -jQuery.each( { - margin: "", - padding: "", - border: "Width" -}, function( prefix, suffix ) { - jQuery.cssHooks[ prefix + suffix ] = { - expand: function( value ) { - var i = 0, - expanded = {}, - - // Assumes a single number if not a string - parts = typeof value === "string" ? value.split( " " ) : [ value ]; - - for ( ; i < 4; i++ ) { - expanded[ prefix + cssExpand[ i ] + suffix ] = - parts[ i ] || parts[ i - 2 ] || parts[ 0 ]; - } - - return expanded; - } - }; - - if ( !rmargin.test( prefix ) ) { - jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber; - } -} ); - -jQuery.fn.extend( { - css: function( name, value ) { - return access( this, function( elem, name, value ) { - var styles, len, - map = {}, - i = 0; - - if ( Array.isArray( name ) ) { - styles = getStyles( elem ); - len = name.length; - - for ( ; i < len; i++ ) { - map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles ); - } - - return map; - } - - return value !== undefined ? - jQuery.style( elem, name, value ) : - jQuery.css( elem, name ); - }, name, value, arguments.length > 1 ); - } -} ); - - -function Tween( elem, options, prop, end, easing ) { - return new Tween.prototype.init( elem, options, prop, end, easing ); -} -jQuery.Tween = Tween; - -Tween.prototype = { - constructor: Tween, - init: function( elem, options, prop, end, easing, unit ) { - this.elem = elem; - this.prop = prop; - this.easing = easing || jQuery.easing._default; - this.options = options; - this.start = this.now = this.cur(); - this.end = end; - this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" ); - }, - cur: function() { - var hooks = Tween.propHooks[ this.prop ]; - - return hooks && hooks.get ? - hooks.get( this ) : - Tween.propHooks._default.get( this ); - }, - run: function( percent ) { - var eased, - hooks = Tween.propHooks[ this.prop ]; - - if ( this.options.duration ) { - this.pos = eased = jQuery.easing[ this.easing ]( - percent, this.options.duration * percent, 0, 1, this.options.duration - ); - } else { - this.pos = eased = percent; - } - this.now = ( this.end - this.start ) * eased + this.start; - - if ( this.options.step ) { - this.options.step.call( this.elem, this.now, this ); - } - - if ( hooks && hooks.set ) { - hooks.set( this ); - } else { - Tween.propHooks._default.set( this ); - } - return this; - } -}; - -Tween.prototype.init.prototype = Tween.prototype; - -Tween.propHooks = { - _default: { - get: function( tween ) { - var result; - - // Use a property on the element directly when it is not a DOM element, - // or when there is no matching style property that exists. - if ( tween.elem.nodeType !== 1 || - tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) { - return tween.elem[ tween.prop ]; - } - - // Passing an empty string as a 3rd parameter to .css will automatically - // attempt a parseFloat and fallback to a string if the parse fails. - // Simple values such as "10px" are parsed to Float; - // complex values such as "rotate(1rad)" are returned as-is. - result = jQuery.css( tween.elem, tween.prop, "" ); - - // Empty strings, null, undefined and "auto" are converted to 0. - return !result || result === "auto" ? 0 : result; - }, - set: function( tween ) { - - // Use step hook for back compat. - // Use cssHook if its there. - // Use .style if available and use plain properties where available. - if ( jQuery.fx.step[ tween.prop ] ) { - jQuery.fx.step[ tween.prop ]( tween ); - } else if ( tween.elem.nodeType === 1 && - ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || - jQuery.cssHooks[ tween.prop ] ) ) { - jQuery.style( tween.elem, tween.prop, tween.now + tween.unit ); - } else { - tween.elem[ tween.prop ] = tween.now; - } - } - } -}; - -// Support: IE <=9 only -// Panic based approach to setting things on disconnected nodes -Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = { - set: function( tween ) { - if ( tween.elem.nodeType && tween.elem.parentNode ) { - tween.elem[ tween.prop ] = tween.now; - } - } -}; - -jQuery.easing = { - linear: function( p ) { - return p; - }, - swing: function( p ) { - return 0.5 - Math.cos( p * Math.PI ) / 2; - }, - _default: "swing" -}; - -jQuery.fx = Tween.prototype.init; - -// Back compat <1.8 extension point -jQuery.fx.step = {}; - - - - -var - fxNow, inProgress, - rfxtypes = /^(?:toggle|show|hide)$/, - rrun = /queueHooks$/; - -function schedule() { - if ( inProgress ) { - if ( document.hidden === false && window.requestAnimationFrame ) { - window.requestAnimationFrame( schedule ); - } else { - window.setTimeout( schedule, jQuery.fx.interval ); - } - - jQuery.fx.tick(); - } -} - -// Animations created synchronously will run synchronously -function createFxNow() { - window.setTimeout( function() { - fxNow = undefined; - } ); - return ( fxNow = jQuery.now() ); -} - -// Generate parameters to create a standard animation -function genFx( type, includeWidth ) { - var which, - i = 0, - attrs = { height: type }; - - // If we include width, step value is 1 to do all cssExpand values, - // otherwise step value is 2 to skip over Left and Right - includeWidth = includeWidth ? 1 : 0; - for ( ; i < 4; i += 2 - includeWidth ) { - which = cssExpand[ i ]; - attrs[ "margin" + which ] = attrs[ "padding" + which ] = type; - } - - if ( includeWidth ) { - attrs.opacity = attrs.width = type; - } - - return attrs; -} - -function createTween( value, prop, animation ) { - var tween, - collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ), - index = 0, - length = collection.length; - for ( ; index < length; index++ ) { - if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) { - - // We're done with this property - return tween; - } - } -} - -function defaultPrefilter( elem, props, opts ) { - var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display, - isBox = "width" in props || "height" in props, - anim = this, - orig = {}, - style = elem.style, - hidden = elem.nodeType && isHiddenWithinTree( elem ), - dataShow = dataPriv.get( elem, "fxshow" ); - - // Queue-skipping animations hijack the fx hooks - if ( !opts.queue ) { - hooks = jQuery._queueHooks( elem, "fx" ); - if ( hooks.unqueued == null ) { - hooks.unqueued = 0; - oldfire = hooks.empty.fire; - hooks.empty.fire = function() { - if ( !hooks.unqueued ) { - oldfire(); - } - }; - } - hooks.unqueued++; - - anim.always( function() { - - // Ensure the complete handler is called before this completes - anim.always( function() { - hooks.unqueued--; - if ( !jQuery.queue( elem, "fx" ).length ) { - hooks.empty.fire(); - } - } ); - } ); - } - - // Detect show/hide animations - for ( prop in props ) { - value = props[ prop ]; - if ( rfxtypes.test( value ) ) { - delete props[ prop ]; - toggle = toggle || value === "toggle"; - if ( value === ( hidden ? "hide" : "show" ) ) { - - // Pretend to be hidden if this is a "show" and - // there is still data from a stopped show/hide - if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) { - hidden = true; - - // Ignore all other no-op show/hide data - } else { - continue; - } - } - orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop ); - } - } - - // Bail out if this is a no-op like .hide().hide() - propTween = !jQuery.isEmptyObject( props ); - if ( !propTween && jQuery.isEmptyObject( orig ) ) { - return; - } - - // Restrict "overflow" and "display" styles during box animations - if ( isBox && elem.nodeType === 1 ) { - - // Support: IE <=9 - 11, Edge 12 - 13 - // Record all 3 overflow attributes because IE does not infer the shorthand - // from identically-valued overflowX and overflowY - opts.overflow = [ style.overflow, style.overflowX, style.overflowY ]; - - // Identify a display type, preferring old show/hide data over the CSS cascade - restoreDisplay = dataShow && dataShow.display; - if ( restoreDisplay == null ) { - restoreDisplay = dataPriv.get( elem, "display" ); - } - display = jQuery.css( elem, "display" ); - if ( display === "none" ) { - if ( restoreDisplay ) { - display = restoreDisplay; - } else { - - // Get nonempty value(s) by temporarily forcing visibility - showHide( [ elem ], true ); - restoreDisplay = elem.style.display || restoreDisplay; - display = jQuery.css( elem, "display" ); - showHide( [ elem ] ); - } - } - - // Animate inline elements as inline-block - if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) { - if ( jQuery.css( elem, "float" ) === "none" ) { - - // Restore the original display value at the end of pure show/hide animations - if ( !propTween ) { - anim.done( function() { - style.display = restoreDisplay; - } ); - if ( restoreDisplay == null ) { - display = style.display; - restoreDisplay = display === "none" ? "" : display; - } - } - style.display = "inline-block"; - } - } - } - - if ( opts.overflow ) { - style.overflow = "hidden"; - anim.always( function() { - style.overflow = opts.overflow[ 0 ]; - style.overflowX = opts.overflow[ 1 ]; - style.overflowY = opts.overflow[ 2 ]; - } ); - } - - // Implement show/hide animations - propTween = false; - for ( prop in orig ) { - - // General show/hide setup for this element animation - if ( !propTween ) { - if ( dataShow ) { - if ( "hidden" in dataShow ) { - hidden = dataShow.hidden; - } - } else { - dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } ); - } - - // Store hidden/visible for toggle so `.stop().toggle()` "reverses" - if ( toggle ) { - dataShow.hidden = !hidden; - } - - // Show elements before animating them - if ( hidden ) { - showHide( [ elem ], true ); - } - - /* eslint-disable no-loop-func */ - - anim.done( function() { - - /* eslint-enable no-loop-func */ - - // The final step of a "hide" animation is actually hiding the element - if ( !hidden ) { - showHide( [ elem ] ); - } - dataPriv.remove( elem, "fxshow" ); - for ( prop in orig ) { - jQuery.style( elem, prop, orig[ prop ] ); - } - } ); - } - - // Per-property setup - propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim ); - if ( !( prop in dataShow ) ) { - dataShow[ prop ] = propTween.start; - if ( hidden ) { - propTween.end = propTween.start; - propTween.start = 0; - } - } - } -} - -function propFilter( props, specialEasing ) { - var index, name, easing, value, hooks; - - // camelCase, specialEasing and expand cssHook pass - for ( index in props ) { - name = jQuery.camelCase( index ); - easing = specialEasing[ name ]; - value = props[ index ]; - if ( Array.isArray( value ) ) { - easing = value[ 1 ]; - value = props[ index ] = value[ 0 ]; - } - - if ( index !== name ) { - props[ name ] = value; - delete props[ index ]; - } - - hooks = jQuery.cssHooks[ name ]; - if ( hooks && "expand" in hooks ) { - value = hooks.expand( value ); - delete props[ name ]; - - // Not quite $.extend, this won't overwrite existing keys. - // Reusing 'index' because we have the correct "name" - for ( index in value ) { - if ( !( index in props ) ) { - props[ index ] = value[ index ]; - specialEasing[ index ] = easing; - } - } - } else { - specialEasing[ name ] = easing; - } - } -} - -function Animation( elem, properties, options ) { - var result, - stopped, - index = 0, - length = Animation.prefilters.length, - deferred = jQuery.Deferred().always( function() { - - // Don't match elem in the :animated selector - delete tick.elem; - } ), - tick = function() { - if ( stopped ) { - return false; - } - var currentTime = fxNow || createFxNow(), - remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ), - - // Support: Android 2.3 only - // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497) - temp = remaining / animation.duration || 0, - percent = 1 - temp, - index = 0, - length = animation.tweens.length; - - for ( ; index < length; index++ ) { - animation.tweens[ index ].run( percent ); - } - - deferred.notifyWith( elem, [ animation, percent, remaining ] ); - - // If there's more to do, yield - if ( percent < 1 && length ) { - return remaining; - } - - // If this was an empty animation, synthesize a final progress notification - if ( !length ) { - deferred.notifyWith( elem, [ animation, 1, 0 ] ); - } - - // Resolve the animation and report its conclusion - deferred.resolveWith( elem, [ animation ] ); - return false; - }, - animation = deferred.promise( { - elem: elem, - props: jQuery.extend( {}, properties ), - opts: jQuery.extend( true, { - specialEasing: {}, - easing: jQuery.easing._default - }, options ), - originalProperties: properties, - originalOptions: options, - startTime: fxNow || createFxNow(), - duration: options.duration, - tweens: [], - createTween: function( prop, end ) { - var tween = jQuery.Tween( elem, animation.opts, prop, end, - animation.opts.specialEasing[ prop ] || animation.opts.easing ); - animation.tweens.push( tween ); - return tween; - }, - stop: function( gotoEnd ) { - var index = 0, - - // If we are going to the end, we want to run all the tweens - // otherwise we skip this part - length = gotoEnd ? animation.tweens.length : 0; - if ( stopped ) { - return this; - } - stopped = true; - for ( ; index < length; index++ ) { - animation.tweens[ index ].run( 1 ); - } - - // Resolve when we played the last frame; otherwise, reject - if ( gotoEnd ) { - deferred.notifyWith( elem, [ animation, 1, 0 ] ); - deferred.resolveWith( elem, [ animation, gotoEnd ] ); - } else { - deferred.rejectWith( elem, [ animation, gotoEnd ] ); - } - return this; - } - } ), - props = animation.props; - - propFilter( props, animation.opts.specialEasing ); - - for ( ; index < length; index++ ) { - result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts ); - if ( result ) { - if ( jQuery.isFunction( result.stop ) ) { - jQuery._queueHooks( animation.elem, animation.opts.queue ).stop = - jQuery.proxy( result.stop, result ); - } - return result; - } - } - - jQuery.map( props, createTween, animation ); - - if ( jQuery.isFunction( animation.opts.start ) ) { - animation.opts.start.call( elem, animation ); - } - - // Attach callbacks from options - animation - .progress( animation.opts.progress ) - .done( animation.opts.done, animation.opts.complete ) - .fail( animation.opts.fail ) - .always( animation.opts.always ); - - jQuery.fx.timer( - jQuery.extend( tick, { - elem: elem, - anim: animation, - queue: animation.opts.queue - } ) - ); - - return animation; -} - -jQuery.Animation = jQuery.extend( Animation, { - - tweeners: { - "*": [ function( prop, value ) { - var tween = this.createTween( prop, value ); - adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween ); - return tween; - } ] - }, - - tweener: function( props, callback ) { - if ( jQuery.isFunction( props ) ) { - callback = props; - props = [ "*" ]; - } else { - props = props.match( rnothtmlwhite ); - } - - var prop, - index = 0, - length = props.length; - - for ( ; index < length; index++ ) { - prop = props[ index ]; - Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || []; - Animation.tweeners[ prop ].unshift( callback ); - } - }, - - prefilters: [ defaultPrefilter ], - - prefilter: function( callback, prepend ) { - if ( prepend ) { - Animation.prefilters.unshift( callback ); - } else { - Animation.prefilters.push( callback ); - } - } -} ); - -jQuery.speed = function( speed, easing, fn ) { - var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : { - complete: fn || !fn && easing || - jQuery.isFunction( speed ) && speed, - duration: speed, - easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing - }; - - // Go to the end state if fx are off - if ( jQuery.fx.off ) { - opt.duration = 0; - - } else { - if ( typeof opt.duration !== "number" ) { - if ( opt.duration in jQuery.fx.speeds ) { - opt.duration = jQuery.fx.speeds[ opt.duration ]; - - } else { - opt.duration = jQuery.fx.speeds._default; - } - } - } - - // Normalize opt.queue - true/undefined/null -> "fx" - if ( opt.queue == null || opt.queue === true ) { - opt.queue = "fx"; - } - - // Queueing - opt.old = opt.complete; - - opt.complete = function() { - if ( jQuery.isFunction( opt.old ) ) { - opt.old.call( this ); - } - - if ( opt.queue ) { - jQuery.dequeue( this, opt.queue ); - } - }; - - return opt; -}; - -jQuery.fn.extend( { - fadeTo: function( speed, to, easing, callback ) { - - // Show any hidden elements after setting opacity to 0 - return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show() - - // Animate to the value specified - .end().animate( { opacity: to }, speed, easing, callback ); - }, - animate: function( prop, speed, easing, callback ) { - var empty = jQuery.isEmptyObject( prop ), - optall = jQuery.speed( speed, easing, callback ), - doAnimation = function() { - - // Operate on a copy of prop so per-property easing won't be lost - var anim = Animation( this, jQuery.extend( {}, prop ), optall ); - - // Empty animations, or finishing resolves immediately - if ( empty || dataPriv.get( this, "finish" ) ) { - anim.stop( true ); - } - }; - doAnimation.finish = doAnimation; - - return empty || optall.queue === false ? - this.each( doAnimation ) : - this.queue( optall.queue, doAnimation ); - }, - stop: function( type, clearQueue, gotoEnd ) { - var stopQueue = function( hooks ) { - var stop = hooks.stop; - delete hooks.stop; - stop( gotoEnd ); - }; - - if ( typeof type !== "string" ) { - gotoEnd = clearQueue; - clearQueue = type; - type = undefined; - } - if ( clearQueue && type !== false ) { - this.queue( type || "fx", [] ); - } - - return this.each( function() { - var dequeue = true, - index = type != null && type + "queueHooks", - timers = jQuery.timers, - data = dataPriv.get( this ); - - if ( index ) { - if ( data[ index ] && data[ index ].stop ) { - stopQueue( data[ index ] ); - } - } else { - for ( index in data ) { - if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) { - stopQueue( data[ index ] ); - } - } - } - - for ( index = timers.length; index--; ) { - if ( timers[ index ].elem === this && - ( type == null || timers[ index ].queue === type ) ) { - - timers[ index ].anim.stop( gotoEnd ); - dequeue = false; - timers.splice( index, 1 ); - } - } - - // Start the next in the queue if the last step wasn't forced. - // Timers currently will call their complete callbacks, which - // will dequeue but only if they were gotoEnd. - if ( dequeue || !gotoEnd ) { - jQuery.dequeue( this, type ); - } - } ); - }, - finish: function( type ) { - if ( type !== false ) { - type = type || "fx"; - } - return this.each( function() { - var index, - data = dataPriv.get( this ), - queue = data[ type + "queue" ], - hooks = data[ type + "queueHooks" ], - timers = jQuery.timers, - length = queue ? queue.length : 0; - - // Enable finishing flag on private data - data.finish = true; - - // Empty the queue first - jQuery.queue( this, type, [] ); - - if ( hooks && hooks.stop ) { - hooks.stop.call( this, true ); - } - - // Look for any active animations, and finish them - for ( index = timers.length; index--; ) { - if ( timers[ index ].elem === this && timers[ index ].queue === type ) { - timers[ index ].anim.stop( true ); - timers.splice( index, 1 ); - } - } - - // Look for any animations in the old queue and finish them - for ( index = 0; index < length; index++ ) { - if ( queue[ index ] && queue[ index ].finish ) { - queue[ index ].finish.call( this ); - } - } - - // Turn off finishing flag - delete data.finish; - } ); - } -} ); - -jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) { - var cssFn = jQuery.fn[ name ]; - jQuery.fn[ name ] = function( speed, easing, callback ) { - return speed == null || typeof speed === "boolean" ? - cssFn.apply( this, arguments ) : - this.animate( genFx( name, true ), speed, easing, callback ); - }; -} ); - -// Generate shortcuts for custom animations -jQuery.each( { - slideDown: genFx( "show" ), - slideUp: genFx( "hide" ), - slideToggle: genFx( "toggle" ), - fadeIn: { opacity: "show" }, - fadeOut: { opacity: "hide" }, - fadeToggle: { opacity: "toggle" } -}, function( name, props ) { - jQuery.fn[ name ] = function( speed, easing, callback ) { - return this.animate( props, speed, easing, callback ); - }; -} ); - -jQuery.timers = []; -jQuery.fx.tick = function() { - var timer, - i = 0, - timers = jQuery.timers; - - fxNow = jQuery.now(); - - for ( ; i < timers.length; i++ ) { - timer = timers[ i ]; - - // Run the timer and safely remove it when done (allowing for external removal) - if ( !timer() && timers[ i ] === timer ) { - timers.splice( i--, 1 ); - } - } - - if ( !timers.length ) { - jQuery.fx.stop(); - } - fxNow = undefined; -}; - -jQuery.fx.timer = function( timer ) { - jQuery.timers.push( timer ); - jQuery.fx.start(); -}; - -jQuery.fx.interval = 13; -jQuery.fx.start = function() { - if ( inProgress ) { - return; - } - - inProgress = true; - schedule(); -}; - -jQuery.fx.stop = function() { - inProgress = null; -}; - -jQuery.fx.speeds = { - slow: 600, - fast: 200, - - // Default speed - _default: 400 -}; - - -// Based off of the plugin by Clint Helfers, with permission. -// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/ -jQuery.fn.delay = function( time, type ) { - time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time; - type = type || "fx"; - - return this.queue( type, function( next, hooks ) { - var timeout = window.setTimeout( next, time ); - hooks.stop = function() { - window.clearTimeout( timeout ); - }; - } ); -}; - - -( function() { - var input = document.createElement( "input" ), - select = document.createElement( "select" ), - opt = select.appendChild( document.createElement( "option" ) ); - - input.type = "checkbox"; - - // Support: Android <=4.3 only - // Default value for a checkbox should be "on" - support.checkOn = input.value !== ""; - - // Support: IE <=11 only - // Must access selectedIndex to make default options select - support.optSelected = opt.selected; - - // Support: IE <=11 only - // An input loses its value after becoming a radio - input = document.createElement( "input" ); - input.value = "t"; - input.type = "radio"; - support.radioValue = input.value === "t"; -} )(); - - -var boolHook, - attrHandle = jQuery.expr.attrHandle; - -jQuery.fn.extend( { - attr: function( name, value ) { - return access( this, jQuery.attr, name, value, arguments.length > 1 ); - }, - - removeAttr: function( name ) { - return this.each( function() { - jQuery.removeAttr( this, name ); - } ); - } -} ); - -jQuery.extend( { - attr: function( elem, name, value ) { - var ret, hooks, - nType = elem.nodeType; - - // Don't get/set attributes on text, comment and attribute nodes - if ( nType === 3 || nType === 8 || nType === 2 ) { - return; - } - - // Fallback to prop when attributes are not supported - if ( typeof elem.getAttribute === "undefined" ) { - return jQuery.prop( elem, name, value ); - } - - // Attribute hooks are determined by the lowercase version - // Grab necessary hook if one is defined - if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) { - hooks = jQuery.attrHooks[ name.toLowerCase() ] || - ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined ); - } - - if ( value !== undefined ) { - if ( value === null ) { - jQuery.removeAttr( elem, name ); - return; - } - - if ( hooks && "set" in hooks && - ( ret = hooks.set( elem, value, name ) ) !== undefined ) { - return ret; - } - - elem.setAttribute( name, value + "" ); - return value; - } - - if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) { - return ret; - } - - ret = jQuery.find.attr( elem, name ); - - // Non-existent attributes return null, we normalize to undefined - return ret == null ? undefined : ret; - }, - - attrHooks: { - type: { - set: function( elem, value ) { - if ( !support.radioValue && value === "radio" && - nodeName( elem, "input" ) ) { - var val = elem.value; - elem.setAttribute( "type", value ); - if ( val ) { - elem.value = val; - } - return value; - } - } - } - }, - - removeAttr: function( elem, value ) { - var name, - i = 0, - - // Attribute names can contain non-HTML whitespace characters - // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2 - attrNames = value && value.match( rnothtmlwhite ); - - if ( attrNames && elem.nodeType === 1 ) { - while ( ( name = attrNames[ i++ ] ) ) { - elem.removeAttribute( name ); - } - } - } -} ); - -// Hooks for boolean attributes -boolHook = { - set: function( elem, value, name ) { - if ( value === false ) { - - // Remove boolean attributes when set to false - jQuery.removeAttr( elem, name ); - } else { - elem.setAttribute( name, name ); - } - return name; - } -}; - -jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) { - var getter = attrHandle[ name ] || jQuery.find.attr; - - attrHandle[ name ] = function( elem, name, isXML ) { - var ret, handle, - lowercaseName = name.toLowerCase(); - - if ( !isXML ) { - - // Avoid an infinite loop by temporarily removing this function from the getter - handle = attrHandle[ lowercaseName ]; - attrHandle[ lowercaseName ] = ret; - ret = getter( elem, name, isXML ) != null ? - lowercaseName : - null; - attrHandle[ lowercaseName ] = handle; - } - return ret; - }; -} ); - - - - -var rfocusable = /^(?:input|select|textarea|button)$/i, - rclickable = /^(?:a|area)$/i; - -jQuery.fn.extend( { - prop: function( name, value ) { - return access( this, jQuery.prop, name, value, arguments.length > 1 ); - }, - - removeProp: function( name ) { - return this.each( function() { - delete this[ jQuery.propFix[ name ] || name ]; - } ); - } -} ); - -jQuery.extend( { - prop: function( elem, name, value ) { - var ret, hooks, - nType = elem.nodeType; - - // Don't get/set properties on text, comment and attribute nodes - if ( nType === 3 || nType === 8 || nType === 2 ) { - return; - } - - if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) { - - // Fix name and attach hooks - name = jQuery.propFix[ name ] || name; - hooks = jQuery.propHooks[ name ]; - } - - if ( value !== undefined ) { - if ( hooks && "set" in hooks && - ( ret = hooks.set( elem, value, name ) ) !== undefined ) { - return ret; - } - - return ( elem[ name ] = value ); - } - - if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) { - return ret; - } - - return elem[ name ]; - }, - - propHooks: { - tabIndex: { - get: function( elem ) { - - // Support: IE <=9 - 11 only - // elem.tabIndex doesn't always return the - // correct value when it hasn't been explicitly set - // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/ - // Use proper attribute retrieval(#12072) - var tabindex = jQuery.find.attr( elem, "tabindex" ); - - if ( tabindex ) { - return parseInt( tabindex, 10 ); - } - - if ( - rfocusable.test( elem.nodeName ) || - rclickable.test( elem.nodeName ) && - elem.href - ) { - return 0; - } - - return -1; - } - } - }, - - propFix: { - "for": "htmlFor", - "class": "className" - } -} ); - -// Support: IE <=11 only -// Accessing the selectedIndex property -// forces the browser to respect setting selected -// on the option -// The getter ensures a default option is selected -// when in an optgroup -// eslint rule "no-unused-expressions" is disabled for this code -// since it considers such accessions noop -if ( !support.optSelected ) { - jQuery.propHooks.selected = { - get: function( elem ) { - - /* eslint no-unused-expressions: "off" */ - - var parent = elem.parentNode; - if ( parent && parent.parentNode ) { - parent.parentNode.selectedIndex; - } - return null; - }, - set: function( elem ) { - - /* eslint no-unused-expressions: "off" */ - - var parent = elem.parentNode; - if ( parent ) { - parent.selectedIndex; - - if ( parent.parentNode ) { - parent.parentNode.selectedIndex; - } - } - } - }; -} - -jQuery.each( [ - "tabIndex", - "readOnly", - "maxLength", - "cellSpacing", - "cellPadding", - "rowSpan", - "colSpan", - "useMap", - "frameBorder", - "contentEditable" -], function() { - jQuery.propFix[ this.toLowerCase() ] = this; -} ); - - - - - // Strip and collapse whitespace according to HTML spec - // https://html.spec.whatwg.org/multipage/infrastructure.html#strip-and-collapse-whitespace - function stripAndCollapse( value ) { - var tokens = value.match( rnothtmlwhite ) || []; - return tokens.join( " " ); - } - - -function getClass( elem ) { - return elem.getAttribute && elem.getAttribute( "class" ) || ""; -} - -jQuery.fn.extend( { - addClass: function( value ) { - var classes, elem, cur, curValue, clazz, j, finalValue, - i = 0; - - if ( jQuery.isFunction( value ) ) { - return this.each( function( j ) { - jQuery( this ).addClass( value.call( this, j, getClass( this ) ) ); - } ); - } - - if ( typeof value === "string" && value ) { - classes = value.match( rnothtmlwhite ) || []; - - while ( ( elem = this[ i++ ] ) ) { - curValue = getClass( elem ); - cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); - - if ( cur ) { - j = 0; - while ( ( clazz = classes[ j++ ] ) ) { - if ( cur.indexOf( " " + clazz + " " ) < 0 ) { - cur += clazz + " "; - } - } - - // Only assign if different to avoid unneeded rendering. - finalValue = stripAndCollapse( cur ); - if ( curValue !== finalValue ) { - elem.setAttribute( "class", finalValue ); - } - } - } - } - - return this; - }, - - removeClass: function( value ) { - var classes, elem, cur, curValue, clazz, j, finalValue, - i = 0; - - if ( jQuery.isFunction( value ) ) { - return this.each( function( j ) { - jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) ); - } ); - } - - if ( !arguments.length ) { - return this.attr( "class", "" ); - } - - if ( typeof value === "string" && value ) { - classes = value.match( rnothtmlwhite ) || []; - - while ( ( elem = this[ i++ ] ) ) { - curValue = getClass( elem ); - - // This expression is here for better compressibility (see addClass) - cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); - - if ( cur ) { - j = 0; - while ( ( clazz = classes[ j++ ] ) ) { - - // Remove *all* instances - while ( cur.indexOf( " " + clazz + " " ) > -1 ) { - cur = cur.replace( " " + clazz + " ", " " ); - } - } - - // Only assign if different to avoid unneeded rendering. - finalValue = stripAndCollapse( cur ); - if ( curValue !== finalValue ) { - elem.setAttribute( "class", finalValue ); - } - } - } - } - - return this; - }, - - toggleClass: function( value, stateVal ) { - var type = typeof value; - - if ( typeof stateVal === "boolean" && type === "string" ) { - return stateVal ? this.addClass( value ) : this.removeClass( value ); - } - - if ( jQuery.isFunction( value ) ) { - return this.each( function( i ) { - jQuery( this ).toggleClass( - value.call( this, i, getClass( this ), stateVal ), - stateVal - ); - } ); - } - - return this.each( function() { - var className, i, self, classNames; - - if ( type === "string" ) { - - // Toggle individual class names - i = 0; - self = jQuery( this ); - classNames = value.match( rnothtmlwhite ) || []; - - while ( ( className = classNames[ i++ ] ) ) { - - // Check each className given, space separated list - if ( self.hasClass( className ) ) { - self.removeClass( className ); - } else { - self.addClass( className ); - } - } - - // Toggle whole class name - } else if ( value === undefined || type === "boolean" ) { - className = getClass( this ); - if ( className ) { - - // Store className if set - dataPriv.set( this, "__className__", className ); - } - - // If the element has a class name or if we're passed `false`, - // then remove the whole classname (if there was one, the above saved it). - // Otherwise bring back whatever was previously saved (if anything), - // falling back to the empty string if nothing was stored. - if ( this.setAttribute ) { - this.setAttribute( "class", - className || value === false ? - "" : - dataPriv.get( this, "__className__" ) || "" - ); - } - } - } ); - }, - - hasClass: function( selector ) { - var className, elem, - i = 0; - - className = " " + selector + " "; - while ( ( elem = this[ i++ ] ) ) { - if ( elem.nodeType === 1 && - ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) { - return true; - } - } - - return false; - } -} ); - - - - -var rreturn = /\r/g; - -jQuery.fn.extend( { - val: function( value ) { - var hooks, ret, isFunction, - elem = this[ 0 ]; - - if ( !arguments.length ) { - if ( elem ) { - hooks = jQuery.valHooks[ elem.type ] || - jQuery.valHooks[ elem.nodeName.toLowerCase() ]; - - if ( hooks && - "get" in hooks && - ( ret = hooks.get( elem, "value" ) ) !== undefined - ) { - return ret; - } - - ret = elem.value; - - // Handle most common string cases - if ( typeof ret === "string" ) { - return ret.replace( rreturn, "" ); - } - - // Handle cases where value is null/undef or number - return ret == null ? "" : ret; - } - - return; - } - - isFunction = jQuery.isFunction( value ); - - return this.each( function( i ) { - var val; - - if ( this.nodeType !== 1 ) { - return; - } - - if ( isFunction ) { - val = value.call( this, i, jQuery( this ).val() ); - } else { - val = value; - } - - // Treat null/undefined as ""; convert numbers to string - if ( val == null ) { - val = ""; - - } else if ( typeof val === "number" ) { - val += ""; - - } else if ( Array.isArray( val ) ) { - val = jQuery.map( val, function( value ) { - return value == null ? "" : value + ""; - } ); - } - - hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ]; - - // If set returns undefined, fall back to normal setting - if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) { - this.value = val; - } - } ); - } -} ); - -jQuery.extend( { - valHooks: { - option: { - get: function( elem ) { - - var val = jQuery.find.attr( elem, "value" ); - return val != null ? - val : - - // Support: IE <=10 - 11 only - // option.text throws exceptions (#14686, #14858) - // Strip and collapse whitespace - // https://html.spec.whatwg.org/#strip-and-collapse-whitespace - stripAndCollapse( jQuery.text( elem ) ); - } - }, - select: { - get: function( elem ) { - var value, option, i, - options = elem.options, - index = elem.selectedIndex, - one = elem.type === "select-one", - values = one ? null : [], - max = one ? index + 1 : options.length; - - if ( index < 0 ) { - i = max; - - } else { - i = one ? index : 0; - } - - // Loop through all the selected options - for ( ; i < max; i++ ) { - option = options[ i ]; - - // Support: IE <=9 only - // IE8-9 doesn't update selected after form reset (#2551) - if ( ( option.selected || i === index ) && - - // Don't return options that are disabled or in a disabled optgroup - !option.disabled && - ( !option.parentNode.disabled || - !nodeName( option.parentNode, "optgroup" ) ) ) { - - // Get the specific value for the option - value = jQuery( option ).val(); - - // We don't need an array for one selects - if ( one ) { - return value; - } - - // Multi-Selects return an array - values.push( value ); - } - } - - return values; - }, - - set: function( elem, value ) { - var optionSet, option, - options = elem.options, - values = jQuery.makeArray( value ), - i = options.length; - - while ( i-- ) { - option = options[ i ]; - - /* eslint-disable no-cond-assign */ - - if ( option.selected = - jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1 - ) { - optionSet = true; - } - - /* eslint-enable no-cond-assign */ - } - - // Force browsers to behave consistently when non-matching value is set - if ( !optionSet ) { - elem.selectedIndex = -1; - } - return values; - } - } - } -} ); - -// Radios and checkboxes getter/setter -jQuery.each( [ "radio", "checkbox" ], function() { - jQuery.valHooks[ this ] = { - set: function( elem, value ) { - if ( Array.isArray( value ) ) { - return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 ); - } - } - }; - if ( !support.checkOn ) { - jQuery.valHooks[ this ].get = function( elem ) { - return elem.getAttribute( "value" ) === null ? "on" : elem.value; - }; - } -} ); - - - - -// Return jQuery for attributes-only inclusion - - -var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/; - -jQuery.extend( jQuery.event, { - - trigger: function( event, data, elem, onlyHandlers ) { - - var i, cur, tmp, bubbleType, ontype, handle, special, - eventPath = [ elem || document ], - type = hasOwn.call( event, "type" ) ? event.type : event, - namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : []; - - cur = tmp = elem = elem || document; - - // Don't do events on text and comment nodes - if ( elem.nodeType === 3 || elem.nodeType === 8 ) { - return; - } - - // focus/blur morphs to focusin/out; ensure we're not firing them right now - if ( rfocusMorph.test( type + jQuery.event.triggered ) ) { - return; - } - - if ( type.indexOf( "." ) > -1 ) { - - // Namespaced trigger; create a regexp to match event type in handle() - namespaces = type.split( "." ); - type = namespaces.shift(); - namespaces.sort(); - } - ontype = type.indexOf( ":" ) < 0 && "on" + type; - - // Caller can pass in a jQuery.Event object, Object, or just an event type string - event = event[ jQuery.expando ] ? - event : - new jQuery.Event( type, typeof event === "object" && event ); - - // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true) - event.isTrigger = onlyHandlers ? 2 : 3; - event.namespace = namespaces.join( "." ); - event.rnamespace = event.namespace ? - new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) : - null; - - // Clean up the event in case it is being reused - event.result = undefined; - if ( !event.target ) { - event.target = elem; - } - - // Clone any incoming data and prepend the event, creating the handler arg list - data = data == null ? - [ event ] : - jQuery.makeArray( data, [ event ] ); - - // Allow special events to draw outside the lines - special = jQuery.event.special[ type ] || {}; - if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) { - return; - } - - // Determine event propagation path in advance, per W3C events spec (#9951) - // Bubble up to document, then to window; watch for a global ownerDocument var (#9724) - if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) { - - bubbleType = special.delegateType || type; - if ( !rfocusMorph.test( bubbleType + type ) ) { - cur = cur.parentNode; - } - for ( ; cur; cur = cur.parentNode ) { - eventPath.push( cur ); - tmp = cur; - } - - // Only add window if we got to document (e.g., not plain obj or detached DOM) - if ( tmp === ( elem.ownerDocument || document ) ) { - eventPath.push( tmp.defaultView || tmp.parentWindow || window ); - } - } - - // Fire handlers on the event path - i = 0; - while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) { - - event.type = i > 1 ? - bubbleType : - special.bindType || type; - - // jQuery handler - handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] && - dataPriv.get( cur, "handle" ); - if ( handle ) { - handle.apply( cur, data ); - } - - // Native handler - handle = ontype && cur[ ontype ]; - if ( handle && handle.apply && acceptData( cur ) ) { - event.result = handle.apply( cur, data ); - if ( event.result === false ) { - event.preventDefault(); - } - } - } - event.type = type; - - // If nobody prevented the default action, do it now - if ( !onlyHandlers && !event.isDefaultPrevented() ) { - - if ( ( !special._default || - special._default.apply( eventPath.pop(), data ) === false ) && - acceptData( elem ) ) { - - // Call a native DOM method on the target with the same name as the event. - // Don't do default actions on window, that's where global variables be (#6170) - if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) { - - // Don't re-trigger an onFOO event when we call its FOO() method - tmp = elem[ ontype ]; - - if ( tmp ) { - elem[ ontype ] = null; - } - - // Prevent re-triggering of the same event, since we already bubbled it above - jQuery.event.triggered = type; - elem[ type ](); - jQuery.event.triggered = undefined; - - if ( tmp ) { - elem[ ontype ] = tmp; - } - } - } - } - - return event.result; - }, - - // Piggyback on a donor event to simulate a different one - // Used only for `focus(in | out)` events - simulate: function( type, elem, event ) { - var e = jQuery.extend( - new jQuery.Event(), - event, - { - type: type, - isSimulated: true - } - ); - - jQuery.event.trigger( e, null, elem ); - } - -} ); - -jQuery.fn.extend( { - - trigger: function( type, data ) { - return this.each( function() { - jQuery.event.trigger( type, data, this ); - } ); - }, - triggerHandler: function( type, data ) { - var elem = this[ 0 ]; - if ( elem ) { - return jQuery.event.trigger( type, data, elem, true ); - } - } -} ); - - -jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " + - "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " + - "change select submit keydown keypress keyup contextmenu" ).split( " " ), - function( i, name ) { - - // Handle event binding - jQuery.fn[ name ] = function( data, fn ) { - return arguments.length > 0 ? - this.on( name, null, data, fn ) : - this.trigger( name ); - }; -} ); - -jQuery.fn.extend( { - hover: function( fnOver, fnOut ) { - return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver ); - } -} ); - - - - -support.focusin = "onfocusin" in window; - - -// Support: Firefox <=44 -// Firefox doesn't have focus(in | out) events -// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787 -// -// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1 -// focus(in | out) events fire after focus & blur events, -// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order -// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857 -if ( !support.focusin ) { - jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) { - - // Attach a single capturing handler on the document while someone wants focusin/focusout - var handler = function( event ) { - jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) ); - }; - - jQuery.event.special[ fix ] = { - setup: function() { - var doc = this.ownerDocument || this, - attaches = dataPriv.access( doc, fix ); - - if ( !attaches ) { - doc.addEventListener( orig, handler, true ); - } - dataPriv.access( doc, fix, ( attaches || 0 ) + 1 ); - }, - teardown: function() { - var doc = this.ownerDocument || this, - attaches = dataPriv.access( doc, fix ) - 1; - - if ( !attaches ) { - doc.removeEventListener( orig, handler, true ); - dataPriv.remove( doc, fix ); - - } else { - dataPriv.access( doc, fix, attaches ); - } - } - }; - } ); -} -var location = window.location; - -var nonce = jQuery.now(); - -var rquery = ( /\?/ ); - - - -// Cross-browser xml parsing -jQuery.parseXML = function( data ) { - var xml; - if ( !data || typeof data !== "string" ) { - return null; - } - - // Support: IE 9 - 11 only - // IE throws on parseFromString with invalid input. - try { - xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" ); - } catch ( e ) { - xml = undefined; - } - - if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) { - jQuery.error( "Invalid XML: " + data ); - } - return xml; -}; - - -var - rbracket = /\[\]$/, - rCRLF = /\r?\n/g, - rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i, - rsubmittable = /^(?:input|select|textarea|keygen)/i; - -function buildParams( prefix, obj, traditional, add ) { - var name; - - if ( Array.isArray( obj ) ) { - - // Serialize array item. - jQuery.each( obj, function( i, v ) { - if ( traditional || rbracket.test( prefix ) ) { - - // Treat each array item as a scalar. - add( prefix, v ); - - } else { - - // Item is non-scalar (array or object), encode its numeric index. - buildParams( - prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]", - v, - traditional, - add - ); - } - } ); - - } else if ( !traditional && jQuery.type( obj ) === "object" ) { - - // Serialize object item. - for ( name in obj ) { - buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add ); - } - - } else { - - // Serialize scalar item. - add( prefix, obj ); - } -} - -// Serialize an array of form elements or a set of -// key/values into a query string -jQuery.param = function( a, traditional ) { - var prefix, - s = [], - add = function( key, valueOrFunction ) { - - // If value is a function, invoke it and use its return value - var value = jQuery.isFunction( valueOrFunction ) ? - valueOrFunction() : - valueOrFunction; - - s[ s.length ] = encodeURIComponent( key ) + "=" + - encodeURIComponent( value == null ? "" : value ); - }; - - // If an array was passed in, assume that it is an array of form elements. - if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) { - - // Serialize the form elements - jQuery.each( a, function() { - add( this.name, this.value ); - } ); - - } else { - - // If traditional, encode the "old" way (the way 1.3.2 or older - // did it), otherwise encode params recursively. - for ( prefix in a ) { - buildParams( prefix, a[ prefix ], traditional, add ); - } - } - - // Return the resulting serialization - return s.join( "&" ); -}; - -jQuery.fn.extend( { - serialize: function() { - return jQuery.param( this.serializeArray() ); - }, - serializeArray: function() { - return this.map( function() { - - // Can add propHook for "elements" to filter or add form elements - var elements = jQuery.prop( this, "elements" ); - return elements ? jQuery.makeArray( elements ) : this; - } ) - .filter( function() { - var type = this.type; - - // Use .is( ":disabled" ) so that fieldset[disabled] works - return this.name && !jQuery( this ).is( ":disabled" ) && - rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) && - ( this.checked || !rcheckableType.test( type ) ); - } ) - .map( function( i, elem ) { - var val = jQuery( this ).val(); - - if ( val == null ) { - return null; - } - - if ( Array.isArray( val ) ) { - return jQuery.map( val, function( val ) { - return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; - } ); - } - - return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; - } ).get(); - } -} ); - - -var - r20 = /%20/g, - rhash = /#.*$/, - rantiCache = /([?&])_=[^&]*/, - rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg, - - // #7653, #8125, #8152: local protocol detection - rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/, - rnoContent = /^(?:GET|HEAD)$/, - rprotocol = /^\/\//, - - /* Prefilters - * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example) - * 2) These are called: - * - BEFORE asking for a transport - * - AFTER param serialization (s.data is a string if s.processData is true) - * 3) key is the dataType - * 4) the catchall symbol "*" can be used - * 5) execution will start with transport dataType and THEN continue down to "*" if needed - */ - prefilters = {}, - - /* Transports bindings - * 1) key is the dataType - * 2) the catchall symbol "*" can be used - * 3) selection will start with transport dataType and THEN go to "*" if needed - */ - transports = {}, - - // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression - allTypes = "*/".concat( "*" ), - - // Anchor tag for parsing the document origin - originAnchor = document.createElement( "a" ); - originAnchor.href = location.href; - -// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport -function addToPrefiltersOrTransports( structure ) { - - // dataTypeExpression is optional and defaults to "*" - return function( dataTypeExpression, func ) { - - if ( typeof dataTypeExpression !== "string" ) { - func = dataTypeExpression; - dataTypeExpression = "*"; - } - - var dataType, - i = 0, - dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || []; - - if ( jQuery.isFunction( func ) ) { - - // For each dataType in the dataTypeExpression - while ( ( dataType = dataTypes[ i++ ] ) ) { - - // Prepend if requested - if ( dataType[ 0 ] === "+" ) { - dataType = dataType.slice( 1 ) || "*"; - ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func ); - - // Otherwise append - } else { - ( structure[ dataType ] = structure[ dataType ] || [] ).push( func ); - } - } - } - }; -} - -// Base inspection function for prefilters and transports -function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) { - - var inspected = {}, - seekingTransport = ( structure === transports ); - - function inspect( dataType ) { - var selected; - inspected[ dataType ] = true; - jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) { - var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR ); - if ( typeof dataTypeOrTransport === "string" && - !seekingTransport && !inspected[ dataTypeOrTransport ] ) { - - options.dataTypes.unshift( dataTypeOrTransport ); - inspect( dataTypeOrTransport ); - return false; - } else if ( seekingTransport ) { - return !( selected = dataTypeOrTransport ); - } - } ); - return selected; - } - - return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" ); -} - -// A special extend for ajax options -// that takes "flat" options (not to be deep extended) -// Fixes #9887 -function ajaxExtend( target, src ) { - var key, deep, - flatOptions = jQuery.ajaxSettings.flatOptions || {}; - - for ( key in src ) { - if ( src[ key ] !== undefined ) { - ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ]; - } - } - if ( deep ) { - jQuery.extend( true, target, deep ); - } - - return target; -} - -/* Handles responses to an ajax request: - * - finds the right dataType (mediates between content-type and expected dataType) - * - returns the corresponding response - */ -function ajaxHandleResponses( s, jqXHR, responses ) { - - var ct, type, finalDataType, firstDataType, - contents = s.contents, - dataTypes = s.dataTypes; - - // Remove auto dataType and get content-type in the process - while ( dataTypes[ 0 ] === "*" ) { - dataTypes.shift(); - if ( ct === undefined ) { - ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" ); - } - } - - // Check if we're dealing with a known content-type - if ( ct ) { - for ( type in contents ) { - if ( contents[ type ] && contents[ type ].test( ct ) ) { - dataTypes.unshift( type ); - break; - } - } - } - - // Check to see if we have a response for the expected dataType - if ( dataTypes[ 0 ] in responses ) { - finalDataType = dataTypes[ 0 ]; - } else { - - // Try convertible dataTypes - for ( type in responses ) { - if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) { - finalDataType = type; - break; - } - if ( !firstDataType ) { - firstDataType = type; - } - } - - // Or just use first one - finalDataType = finalDataType || firstDataType; - } - - // If we found a dataType - // We add the dataType to the list if needed - // and return the corresponding response - if ( finalDataType ) { - if ( finalDataType !== dataTypes[ 0 ] ) { - dataTypes.unshift( finalDataType ); - } - return responses[ finalDataType ]; - } -} - -/* Chain conversions given the request and the original response - * Also sets the responseXXX fields on the jqXHR instance - */ -function ajaxConvert( s, response, jqXHR, isSuccess ) { - var conv2, current, conv, tmp, prev, - converters = {}, - - // Work with a copy of dataTypes in case we need to modify it for conversion - dataTypes = s.dataTypes.slice(); - - // Create converters map with lowercased keys - if ( dataTypes[ 1 ] ) { - for ( conv in s.converters ) { - converters[ conv.toLowerCase() ] = s.converters[ conv ]; - } - } - - current = dataTypes.shift(); - - // Convert to each sequential dataType - while ( current ) { - - if ( s.responseFields[ current ] ) { - jqXHR[ s.responseFields[ current ] ] = response; - } - - // Apply the dataFilter if provided - if ( !prev && isSuccess && s.dataFilter ) { - response = s.dataFilter( response, s.dataType ); - } - - prev = current; - current = dataTypes.shift(); - - if ( current ) { - - // There's only work to do if current dataType is non-auto - if ( current === "*" ) { - - current = prev; - - // Convert response if prev dataType is non-auto and differs from current - } else if ( prev !== "*" && prev !== current ) { - - // Seek a direct converter - conv = converters[ prev + " " + current ] || converters[ "* " + current ]; - - // If none found, seek a pair - if ( !conv ) { - for ( conv2 in converters ) { - - // If conv2 outputs current - tmp = conv2.split( " " ); - if ( tmp[ 1 ] === current ) { - - // If prev can be converted to accepted input - conv = converters[ prev + " " + tmp[ 0 ] ] || - converters[ "* " + tmp[ 0 ] ]; - if ( conv ) { - - // Condense equivalence converters - if ( conv === true ) { - conv = converters[ conv2 ]; - - // Otherwise, insert the intermediate dataType - } else if ( converters[ conv2 ] !== true ) { - current = tmp[ 0 ]; - dataTypes.unshift( tmp[ 1 ] ); - } - break; - } - } - } - } - - // Apply converter (if not an equivalence) - if ( conv !== true ) { - - // Unless errors are allowed to bubble, catch and return them - if ( conv && s.throws ) { - response = conv( response ); - } else { - try { - response = conv( response ); - } catch ( e ) { - return { - state: "parsererror", - error: conv ? e : "No conversion from " + prev + " to " + current - }; - } - } - } - } - } - } - - return { state: "success", data: response }; -} - -jQuery.extend( { - - // Counter for holding the number of active queries - active: 0, - - // Last-Modified header cache for next request - lastModified: {}, - etag: {}, - - ajaxSettings: { - url: location.href, - type: "GET", - isLocal: rlocalProtocol.test( location.protocol ), - global: true, - processData: true, - async: true, - contentType: "application/x-www-form-urlencoded; charset=UTF-8", - - /* - timeout: 0, - data: null, - dataType: null, - username: null, - password: null, - cache: null, - throws: false, - traditional: false, - headers: {}, - */ - - accepts: { - "*": allTypes, - text: "text/plain", - html: "text/html", - xml: "application/xml, text/xml", - json: "application/json, text/javascript" - }, - - contents: { - xml: /\bxml\b/, - html: /\bhtml/, - json: /\bjson\b/ - }, - - responseFields: { - xml: "responseXML", - text: "responseText", - json: "responseJSON" - }, - - // Data converters - // Keys separate source (or catchall "*") and destination types with a single space - converters: { - - // Convert anything to text - "* text": String, - - // Text to html (true = no transformation) - "text html": true, - - // Evaluate text as a json expression - "text json": JSON.parse, - - // Parse text as xml - "text xml": jQuery.parseXML - }, - - // For options that shouldn't be deep extended: - // you can add your own custom options here if - // and when you create one that shouldn't be - // deep extended (see ajaxExtend) - flatOptions: { - url: true, - context: true - } - }, - - // Creates a full fledged settings object into target - // with both ajaxSettings and settings fields. - // If target is omitted, writes into ajaxSettings. - ajaxSetup: function( target, settings ) { - return settings ? - - // Building a settings object - ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) : - - // Extending ajaxSettings - ajaxExtend( jQuery.ajaxSettings, target ); - }, - - ajaxPrefilter: addToPrefiltersOrTransports( prefilters ), - ajaxTransport: addToPrefiltersOrTransports( transports ), - - // Main method - ajax: function( url, options ) { - - // If url is an object, simulate pre-1.5 signature - if ( typeof url === "object" ) { - options = url; - url = undefined; - } - - // Force options to be an object - options = options || {}; - - var transport, - - // URL without anti-cache param - cacheURL, - - // Response headers - responseHeadersString, - responseHeaders, - - // timeout handle - timeoutTimer, - - // Url cleanup var - urlAnchor, - - // Request state (becomes false upon send and true upon completion) - completed, - - // To know if global events are to be dispatched - fireGlobals, - - // Loop variable - i, - - // uncached part of the url - uncached, - - // Create the final options object - s = jQuery.ajaxSetup( {}, options ), - - // Callbacks context - callbackContext = s.context || s, - - // Context for global events is callbackContext if it is a DOM node or jQuery collection - globalEventContext = s.context && - ( callbackContext.nodeType || callbackContext.jquery ) ? - jQuery( callbackContext ) : - jQuery.event, - - // Deferreds - deferred = jQuery.Deferred(), - completeDeferred = jQuery.Callbacks( "once memory" ), - - // Status-dependent callbacks - statusCode = s.statusCode || {}, - - // Headers (they are sent all at once) - requestHeaders = {}, - requestHeadersNames = {}, - - // Default abort message - strAbort = "canceled", - - // Fake xhr - jqXHR = { - readyState: 0, - - // Builds headers hashtable if needed - getResponseHeader: function( key ) { - var match; - if ( completed ) { - if ( !responseHeaders ) { - responseHeaders = {}; - while ( ( match = rheaders.exec( responseHeadersString ) ) ) { - responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ]; - } - } - match = responseHeaders[ key.toLowerCase() ]; - } - return match == null ? null : match; - }, - - // Raw string - getAllResponseHeaders: function() { - return completed ? responseHeadersString : null; - }, - - // Caches the header - setRequestHeader: function( name, value ) { - if ( completed == null ) { - name = requestHeadersNames[ name.toLowerCase() ] = - requestHeadersNames[ name.toLowerCase() ] || name; - requestHeaders[ name ] = value; - } - return this; - }, - - // Overrides response content-type header - overrideMimeType: function( type ) { - if ( completed == null ) { - s.mimeType = type; - } - return this; - }, - - // Status-dependent callbacks - statusCode: function( map ) { - var code; - if ( map ) { - if ( completed ) { - - // Execute the appropriate callbacks - jqXHR.always( map[ jqXHR.status ] ); - } else { - - // Lazy-add the new callbacks in a way that preserves old ones - for ( code in map ) { - statusCode[ code ] = [ statusCode[ code ], map[ code ] ]; - } - } - } - return this; - }, - - // Cancel the request - abort: function( statusText ) { - var finalText = statusText || strAbort; - if ( transport ) { - transport.abort( finalText ); - } - done( 0, finalText ); - return this; - } - }; - - // Attach deferreds - deferred.promise( jqXHR ); - - // Add protocol if not provided (prefilters might expect it) - // Handle falsy url in the settings object (#10093: consistency with old signature) - // We also use the url parameter if available - s.url = ( ( url || s.url || location.href ) + "" ) - .replace( rprotocol, location.protocol + "//" ); - - // Alias method option to type as per ticket #12004 - s.type = options.method || options.type || s.method || s.type; - - // Extract dataTypes list - s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ]; - - // A cross-domain request is in order when the origin doesn't match the current origin. - if ( s.crossDomain == null ) { - urlAnchor = document.createElement( "a" ); - - // Support: IE <=8 - 11, Edge 12 - 13 - // IE throws exception on accessing the href property if url is malformed, - // e.g. http://example.com:80x/ - try { - urlAnchor.href = s.url; - - // Support: IE <=8 - 11 only - // Anchor's host property isn't correctly set when s.url is relative - urlAnchor.href = urlAnchor.href; - s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !== - urlAnchor.protocol + "//" + urlAnchor.host; - } catch ( e ) { - - // If there is an error parsing the URL, assume it is crossDomain, - // it can be rejected by the transport if it is invalid - s.crossDomain = true; - } - } - - // Convert data if not already a string - if ( s.data && s.processData && typeof s.data !== "string" ) { - s.data = jQuery.param( s.data, s.traditional ); - } - - // Apply prefilters - inspectPrefiltersOrTransports( prefilters, s, options, jqXHR ); - - // If request was aborted inside a prefilter, stop there - if ( completed ) { - return jqXHR; - } - - // We can fire global events as of now if asked to - // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118) - fireGlobals = jQuery.event && s.global; - - // Watch for a new set of requests - if ( fireGlobals && jQuery.active++ === 0 ) { - jQuery.event.trigger( "ajaxStart" ); - } - - // Uppercase the type - s.type = s.type.toUpperCase(); - - // Determine if request has content - s.hasContent = !rnoContent.test( s.type ); - - // Save the URL in case we're toying with the If-Modified-Since - // and/or If-None-Match header later on - // Remove hash to simplify url manipulation - cacheURL = s.url.replace( rhash, "" ); - - // More options handling for requests with no content - if ( !s.hasContent ) { - - // Remember the hash so we can put it back - uncached = s.url.slice( cacheURL.length ); - - // If data is available, append data to url - if ( s.data ) { - cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data; - - // #9682: remove data so that it's not used in an eventual retry - delete s.data; - } - - // Add or update anti-cache param if needed - if ( s.cache === false ) { - cacheURL = cacheURL.replace( rantiCache, "$1" ); - uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached; - } - - // Put hash and anti-cache on the URL that will be requested (gh-1732) - s.url = cacheURL + uncached; - - // Change '%20' to '+' if this is encoded form body content (gh-2658) - } else if ( s.data && s.processData && - ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) { - s.data = s.data.replace( r20, "+" ); - } - - // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. - if ( s.ifModified ) { - if ( jQuery.lastModified[ cacheURL ] ) { - jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] ); - } - if ( jQuery.etag[ cacheURL ] ) { - jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] ); - } - } - - // Set the correct header, if data is being sent - if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) { - jqXHR.setRequestHeader( "Content-Type", s.contentType ); - } - - // Set the Accepts header for the server, depending on the dataType - jqXHR.setRequestHeader( - "Accept", - s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ? - s.accepts[ s.dataTypes[ 0 ] ] + - ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) : - s.accepts[ "*" ] - ); - - // Check for headers option - for ( i in s.headers ) { - jqXHR.setRequestHeader( i, s.headers[ i ] ); - } - - // Allow custom headers/mimetypes and early abort - if ( s.beforeSend && - ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) { - - // Abort if not done already and return - return jqXHR.abort(); - } - - // Aborting is no longer a cancellation - strAbort = "abort"; - - // Install callbacks on deferreds - completeDeferred.add( s.complete ); - jqXHR.done( s.success ); - jqXHR.fail( s.error ); - - // Get transport - transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR ); - - // If no transport, we auto-abort - if ( !transport ) { - done( -1, "No Transport" ); - } else { - jqXHR.readyState = 1; - - // Send global event - if ( fireGlobals ) { - globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] ); - } - - // If request was aborted inside ajaxSend, stop there - if ( completed ) { - return jqXHR; - } - - // Timeout - if ( s.async && s.timeout > 0 ) { - timeoutTimer = window.setTimeout( function() { - jqXHR.abort( "timeout" ); - }, s.timeout ); - } - - try { - completed = false; - transport.send( requestHeaders, done ); - } catch ( e ) { - - // Rethrow post-completion exceptions - if ( completed ) { - throw e; - } - - // Propagate others as results - done( -1, e ); - } - } - - // Callback for when everything is done - function done( status, nativeStatusText, responses, headers ) { - var isSuccess, success, error, response, modified, - statusText = nativeStatusText; - - // Ignore repeat invocations - if ( completed ) { - return; - } - - completed = true; - - // Clear timeout if it exists - if ( timeoutTimer ) { - window.clearTimeout( timeoutTimer ); - } - - // Dereference transport for early garbage collection - // (no matter how long the jqXHR object will be used) - transport = undefined; - - // Cache response headers - responseHeadersString = headers || ""; - - // Set readyState - jqXHR.readyState = status > 0 ? 4 : 0; - - // Determine if successful - isSuccess = status >= 200 && status < 300 || status === 304; - - // Get response data - if ( responses ) { - response = ajaxHandleResponses( s, jqXHR, responses ); - } - - // Convert no matter what (that way responseXXX fields are always set) - response = ajaxConvert( s, response, jqXHR, isSuccess ); - - // If successful, handle type chaining - if ( isSuccess ) { - - // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. - if ( s.ifModified ) { - modified = jqXHR.getResponseHeader( "Last-Modified" ); - if ( modified ) { - jQuery.lastModified[ cacheURL ] = modified; - } - modified = jqXHR.getResponseHeader( "etag" ); - if ( modified ) { - jQuery.etag[ cacheURL ] = modified; - } - } - - // if no content - if ( status === 204 || s.type === "HEAD" ) { - statusText = "nocontent"; - - // if not modified - } else if ( status === 304 ) { - statusText = "notmodified"; - - // If we have data, let's convert it - } else { - statusText = response.state; - success = response.data; - error = response.error; - isSuccess = !error; - } - } else { - - // Extract error from statusText and normalize for non-aborts - error = statusText; - if ( status || !statusText ) { - statusText = "error"; - if ( status < 0 ) { - status = 0; - } - } - } - - // Set data for the fake xhr object - jqXHR.status = status; - jqXHR.statusText = ( nativeStatusText || statusText ) + ""; - - // Success/Error - if ( isSuccess ) { - deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] ); - } else { - deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] ); - } - - // Status-dependent callbacks - jqXHR.statusCode( statusCode ); - statusCode = undefined; - - if ( fireGlobals ) { - globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError", - [ jqXHR, s, isSuccess ? success : error ] ); - } - - // Complete - completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] ); - - if ( fireGlobals ) { - globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] ); - - // Handle the global AJAX counter - if ( !( --jQuery.active ) ) { - jQuery.event.trigger( "ajaxStop" ); - } - } - } - - return jqXHR; - }, - - getJSON: function( url, data, callback ) { - return jQuery.get( url, data, callback, "json" ); - }, - - getScript: function( url, callback ) { - return jQuery.get( url, undefined, callback, "script" ); - } -} ); - -jQuery.each( [ "get", "post" ], function( i, method ) { - jQuery[ method ] = function( url, data, callback, type ) { - - // Shift arguments if data argument was omitted - if ( jQuery.isFunction( data ) ) { - type = type || callback; - callback = data; - data = undefined; - } - - // The url can be an options object (which then must have .url) - return jQuery.ajax( jQuery.extend( { - url: url, - type: method, - dataType: type, - data: data, - success: callback - }, jQuery.isPlainObject( url ) && url ) ); - }; -} ); - - -jQuery._evalUrl = function( url ) { - return jQuery.ajax( { - url: url, - - // Make this explicit, since user can override this through ajaxSetup (#11264) - type: "GET", - dataType: "script", - cache: true, - async: false, - global: false, - "throws": true - } ); -}; - - -jQuery.fn.extend( { - wrapAll: function( html ) { - var wrap; - - if ( this[ 0 ] ) { - if ( jQuery.isFunction( html ) ) { - html = html.call( this[ 0 ] ); - } - - // The elements to wrap the target around - wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true ); - - if ( this[ 0 ].parentNode ) { - wrap.insertBefore( this[ 0 ] ); - } - - wrap.map( function() { - var elem = this; - - while ( elem.firstElementChild ) { - elem = elem.firstElementChild; - } - - return elem; - } ).append( this ); - } - - return this; - }, - - wrapInner: function( html ) { - if ( jQuery.isFunction( html ) ) { - return this.each( function( i ) { - jQuery( this ).wrapInner( html.call( this, i ) ); - } ); - } - - return this.each( function() { - var self = jQuery( this ), - contents = self.contents(); - - if ( contents.length ) { - contents.wrapAll( html ); - - } else { - self.append( html ); - } - } ); - }, - - wrap: function( html ) { - var isFunction = jQuery.isFunction( html ); - - return this.each( function( i ) { - jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html ); - } ); - }, - - unwrap: function( selector ) { - this.parent( selector ).not( "body" ).each( function() { - jQuery( this ).replaceWith( this.childNodes ); - } ); - return this; - } -} ); - - -jQuery.expr.pseudos.hidden = function( elem ) { - return !jQuery.expr.pseudos.visible( elem ); -}; -jQuery.expr.pseudos.visible = function( elem ) { - return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length ); -}; - - - - -jQuery.ajaxSettings.xhr = function() { - try { - return new window.XMLHttpRequest(); - } catch ( e ) {} -}; - -var xhrSuccessStatus = { - - // File protocol always yields status code 0, assume 200 - 0: 200, - - // Support: IE <=9 only - // #1450: sometimes IE returns 1223 when it should be 204 - 1223: 204 - }, - xhrSupported = jQuery.ajaxSettings.xhr(); - -support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported ); -support.ajax = xhrSupported = !!xhrSupported; - -jQuery.ajaxTransport( function( options ) { - var callback, errorCallback; - - // Cross domain only allowed if supported through XMLHttpRequest - if ( support.cors || xhrSupported && !options.crossDomain ) { - return { - send: function( headers, complete ) { - var i, - xhr = options.xhr(); - - xhr.open( - options.type, - options.url, - options.async, - options.username, - options.password - ); - - // Apply custom fields if provided - if ( options.xhrFields ) { - for ( i in options.xhrFields ) { - xhr[ i ] = options.xhrFields[ i ]; - } - } - - // Override mime type if needed - if ( options.mimeType && xhr.overrideMimeType ) { - xhr.overrideMimeType( options.mimeType ); - } - - // X-Requested-With header - // For cross-domain requests, seeing as conditions for a preflight are - // akin to a jigsaw puzzle, we simply never set it to be sure. - // (it can always be set on a per-request basis or even using ajaxSetup) - // For same-domain requests, won't change header if already provided. - if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) { - headers[ "X-Requested-With" ] = "XMLHttpRequest"; - } - - // Set headers - for ( i in headers ) { - xhr.setRequestHeader( i, headers[ i ] ); - } - - // Callback - callback = function( type ) { - return function() { - if ( callback ) { - callback = errorCallback = xhr.onload = - xhr.onerror = xhr.onabort = xhr.onreadystatechange = null; - - if ( type === "abort" ) { - xhr.abort(); - } else if ( type === "error" ) { - - // Support: IE <=9 only - // On a manual native abort, IE9 throws - // errors on any property access that is not readyState - if ( typeof xhr.status !== "number" ) { - complete( 0, "error" ); - } else { - complete( - - // File: protocol always yields status 0; see #8605, #14207 - xhr.status, - xhr.statusText - ); - } - } else { - complete( - xhrSuccessStatus[ xhr.status ] || xhr.status, - xhr.statusText, - - // Support: IE <=9 only - // IE9 has no XHR2 but throws on binary (trac-11426) - // For XHR2 non-text, let the caller handle it (gh-2498) - ( xhr.responseType || "text" ) !== "text" || - typeof xhr.responseText !== "string" ? - { binary: xhr.response } : - { text: xhr.responseText }, - xhr.getAllResponseHeaders() - ); - } - } - }; - }; - - // Listen to events - xhr.onload = callback(); - errorCallback = xhr.onerror = callback( "error" ); - - // Support: IE 9 only - // Use onreadystatechange to replace onabort - // to handle uncaught aborts - if ( xhr.onabort !== undefined ) { - xhr.onabort = errorCallback; - } else { - xhr.onreadystatechange = function() { - - // Check readyState before timeout as it changes - if ( xhr.readyState === 4 ) { - - // Allow onerror to be called first, - // but that will not handle a native abort - // Also, save errorCallback to a variable - // as xhr.onerror cannot be accessed - window.setTimeout( function() { - if ( callback ) { - errorCallback(); - } - } ); - } - }; - } - - // Create the abort callback - callback = callback( "abort" ); - - try { - - // Do send the request (this may raise an exception) - xhr.send( options.hasContent && options.data || null ); - } catch ( e ) { - - // #14683: Only rethrow if this hasn't been notified as an error yet - if ( callback ) { - throw e; - } - } - }, - - abort: function() { - if ( callback ) { - callback(); - } - } - }; - } -} ); - - - - -// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432) -jQuery.ajaxPrefilter( function( s ) { - if ( s.crossDomain ) { - s.contents.script = false; - } -} ); - -// Install script dataType -jQuery.ajaxSetup( { - accepts: { - script: "text/javascript, application/javascript, " + - "application/ecmascript, application/x-ecmascript" - }, - contents: { - script: /\b(?:java|ecma)script\b/ - }, - converters: { - "text script": function( text ) { - jQuery.globalEval( text ); - return text; - } - } -} ); - -// Handle cache's special case and crossDomain -jQuery.ajaxPrefilter( "script", function( s ) { - if ( s.cache === undefined ) { - s.cache = false; - } - if ( s.crossDomain ) { - s.type = "GET"; - } -} ); - -// Bind script tag hack transport -jQuery.ajaxTransport( "script", function( s ) { - - // This transport only deals with cross domain requests - if ( s.crossDomain ) { - var script, callback; - return { - send: function( _, complete ) { - script = jQuery( " - - - - - - - - Leaflet AJAX - - -
- - - - - diff --git a/public/assets/vendor/leaflet-ajax/example/leaflet-src.js b/public/assets/vendor/leaflet-ajax/example/leaflet-src.js deleted file mode 100644 index c8bb0d0a..00000000 --- a/public/assets/vendor/leaflet-ajax/example/leaflet-src.js +++ /dev/null @@ -1,9406 +0,0 @@ -/* - Leaflet 1.0-dev (46d2d6a), a JS library for interactive maps. http://leafletjs.com - (c) 2010-2015 Vladimir Agafonkin, (c) 2010-2011 CloudMade -*/ -(function (window, document, undefined) { -var L = { - version: '1.0-dev' -}; - -function expose() { - var oldL = window.L; - - L.noConflict = function () { - window.L = oldL; - return this; - }; - - window.L = L; -} - -// define Leaflet for Node module pattern loaders, including Browserify -if (typeof module === 'object' && typeof module.exports === 'object') { - module.exports = L; - -// define Leaflet as an AMD module -} else if (typeof define === 'function' && define.amd) { - define(L); -} - -// define Leaflet as a global L variable, saving the original L to restore later if needed -if (typeof window !== 'undefined') { - expose(); -} - - -/* - * L.Util contains various utility functions used throughout Leaflet code. - */ - -L.Util = { - // extend an object with properties of one or more other objects - extend: function (dest) { - var i, j, len, src; - - for (j = 1, len = arguments.length; j < len; j++) { - src = arguments[j]; - for (i in src) { - dest[i] = src[i]; - } - } - return dest; - }, - - // create an object from a given prototype - create: Object.create || (function () { - function F() {} - return function (proto) { - F.prototype = proto; - return new F(); - }; - })(), - - // bind a function to be called with a given context - bind: function (fn, obj) { - var slice = Array.prototype.slice; - - if (fn.bind) { - return fn.bind.apply(fn, slice.call(arguments, 1)); - } - - var args = slice.call(arguments, 2); - - return function () { - return fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments); - }; - }, - - // return unique ID of an object - stamp: function (obj) { - /*eslint-disable */ - obj._leaflet_id = obj._leaflet_id || ++L.Util.lastId; - return obj._leaflet_id; - /*eslint-enable */ - }, - - lastId: 0, - - // return a function that won't be called more often than the given interval - throttle: function (fn, time, context) { - var lock, args, wrapperFn, later; - - later = function () { - // reset lock and call if queued - lock = false; - if (args) { - wrapperFn.apply(context, args); - args = false; - } - }; - - wrapperFn = function () { - if (lock) { - // called too soon, queue to call later - args = arguments; - - } else { - // call and lock until later - fn.apply(context, arguments); - setTimeout(later, time); - lock = true; - } - }; - - return wrapperFn; - }, - - // wrap the given number to lie within a certain range (used for wrapping longitude) - wrapNum: function (x, range, includeMax) { - var max = range[1], - min = range[0], - d = max - min; - return x === max && includeMax ? x : ((x - min) % d + d) % d + min; - }, - - // do nothing (used as a noop throughout the code) - falseFn: function () { return false; }, - - // round a given number to a given precision - formatNum: function (num, digits) { - var pow = Math.pow(10, digits || 5); - return Math.round(num * pow) / pow; - }, - - // trim whitespace from both sides of a string - trim: function (str) { - return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, ''); - }, - - // split a string into words - splitWords: function (str) { - return L.Util.trim(str).split(/\s+/); - }, - - // set options to an object, inheriting parent's options as well - setOptions: function (obj, options) { - if (!obj.hasOwnProperty('options')) { - obj.options = obj.options ? L.Util.create(obj.options) : {}; - } - for (var i in options) { - obj.options[i] = options[i]; - } - return obj.options; - }, - - // make a URL with GET parameters out of a set of properties/values - getParamString: function (obj, existingUrl, uppercase) { - var params = []; - for (var i in obj) { - params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i])); - } - return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&'); - }, - - // super-simple templating facility, used for TileLayer URLs - template: function (str, data) { - return str.replace(L.Util.templateRe, function (str, key) { - var value = data[key]; - - if (value === undefined) { - throw new Error('No value provided for variable ' + str); - - } else if (typeof value === 'function') { - value = value(data); - } - return value; - }); - }, - - templateRe: /\{ *([\w_]+) *\}/g, - - isArray: Array.isArray || function (obj) { - return (Object.prototype.toString.call(obj) === '[object Array]'); - }, - - indexOf: function (array, el) { - for (var i = 0; i < array.length; i++) { - if (array[i] === el) { return i; } - } - return -1; - }, - - // minimal image URI, set to an image when disposing to flush memory - emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=' -}; - -(function () { - // inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/ - - function getPrefixed(name) { - return window['webkit' + name] || window['moz' + name] || window['ms' + name]; - } - - var lastTime = 0; - - // fallback for IE 7-8 - function timeoutDefer(fn) { - var time = +new Date(), - timeToCall = Math.max(0, 16 - (time - lastTime)); - - lastTime = time + timeToCall; - return window.setTimeout(fn, timeToCall); - } - - var requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer, - cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') || - getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); }; - - - L.Util.requestAnimFrame = function (fn, context, immediate) { - if (immediate && requestFn === timeoutDefer) { - fn.call(context); - } else { - return requestFn.call(window, L.bind(fn, context)); - } - }; - - L.Util.cancelAnimFrame = function (id) { - if (id) { - cancelFn.call(window, id); - } - }; -})(); - -// shortcuts for most used utility functions -L.extend = L.Util.extend; -L.bind = L.Util.bind; -L.stamp = L.Util.stamp; -L.setOptions = L.Util.setOptions; - - -/* - * L.Class powers the OOP facilities of the library. - * Thanks to John Resig and Dean Edwards for inspiration! - */ - -L.Class = function () {}; - -L.Class.extend = function (props) { - - // extended class with the new prototype - var NewClass = function () { - - // call the constructor - if (this.initialize) { - this.initialize.apply(this, arguments); - } - - // call all constructor hooks - this.callInitHooks(); - }; - - var parentProto = NewClass.__super__ = this.prototype; - - var proto = L.Util.create(parentProto); - proto.constructor = NewClass; - - NewClass.prototype = proto; - - // inherit parent's statics - for (var i in this) { - if (this.hasOwnProperty(i) && i !== 'prototype') { - NewClass[i] = this[i]; - } - } - - // mix static properties into the class - if (props.statics) { - L.extend(NewClass, props.statics); - delete props.statics; - } - - // mix includes into the prototype - if (props.includes) { - L.Util.extend.apply(null, [proto].concat(props.includes)); - delete props.includes; - } - - // merge options - if (proto.options) { - props.options = L.Util.extend(L.Util.create(proto.options), props.options); - } - - // mix given properties into the prototype - L.extend(proto, props); - - proto._initHooks = []; - - // add method for calling all hooks - proto.callInitHooks = function () { - - if (this._initHooksCalled) { return; } - - if (parentProto.callInitHooks) { - parentProto.callInitHooks.call(this); - } - - this._initHooksCalled = true; - - for (var i = 0, len = proto._initHooks.length; i < len; i++) { - proto._initHooks[i].call(this); - } - }; - - return NewClass; -}; - - -// method for adding properties to prototype -L.Class.include = function (props) { - L.extend(this.prototype, props); -}; - -// merge new default options to the Class -L.Class.mergeOptions = function (options) { - L.extend(this.prototype.options, options); -}; - -// add a constructor hook -L.Class.addInitHook = function (fn) { // (Function) || (String, args...) - var args = Array.prototype.slice.call(arguments, 1); - - var init = typeof fn === 'function' ? fn : function () { - this[fn].apply(this, args); - }; - - this.prototype._initHooks = this.prototype._initHooks || []; - this.prototype._initHooks.push(init); -}; - - -/* - * L.Evented is a base class that Leaflet classes inherit from to handle custom events. - */ - -L.Evented = L.Class.extend({ - - on: function (types, fn, context) { - - // types can be a map of types/handlers - if (typeof types === 'object') { - for (var type in types) { - // we don't process space-separated events here for performance; - // it's a hot path since Layer uses the on(obj) syntax - this._on(type, types[type], fn); - } - - } else { - // types can be a string of space-separated words - types = L.Util.splitWords(types); - - for (var i = 0, len = types.length; i < len; i++) { - this._on(types[i], fn, context); - } - } - - return this; - }, - - off: function (types, fn, context) { - - if (!types) { - // clear all listeners if called without arguments - delete this._events; - - } else if (typeof types === 'object') { - for (var type in types) { - this._off(type, types[type], fn); - } - - } else { - types = L.Util.splitWords(types); - - for (var i = 0, len = types.length; i < len; i++) { - this._off(types[i], fn, context); - } - } - - return this; - }, - - // attach listener (without syntactic sugar now) - _on: function (type, fn, context) { - - var events = this._events = this._events || {}, - contextId = context && context !== this && L.stamp(context); - - if (contextId) { - // store listeners with custom context in a separate hash (if it has an id); - // gives a major performance boost when firing and removing events (e.g. on map object) - - var indexKey = type + '_idx', - indexLenKey = type + '_len', - typeIndex = events[indexKey] = events[indexKey] || {}, - id = L.stamp(fn) + '_' + contextId; - - if (!typeIndex[id]) { - typeIndex[id] = {fn: fn, ctx: context}; - - // keep track of the number of keys in the index to quickly check if it's empty - events[indexLenKey] = (events[indexLenKey] || 0) + 1; - } - - } else { - // individual layers mostly use "this" for context and don't fire listeners too often - // so simple array makes the memory footprint better while not degrading performance - - events[type] = events[type] || []; - events[type].push({fn: fn}); - } - }, - - _off: function (type, fn, context) { - var events = this._events, - indexKey = type + '_idx', - indexLenKey = type + '_len'; - - if (!events) { return; } - - if (!fn) { - // clear all listeners for a type if function isn't specified - delete events[type]; - delete events[indexKey]; - delete events[indexLenKey]; - return; - } - - var contextId = context && context !== this && L.stamp(context), - listeners, i, len, listener, id; - - if (contextId) { - id = L.stamp(fn) + '_' + contextId; - listeners = events[indexKey]; - - if (listeners && listeners[id]) { - listener = listeners[id]; - delete listeners[id]; - events[indexLenKey]--; - } - - } else { - listeners = events[type]; - - if (listeners) { - for (i = 0, len = listeners.length; i < len; i++) { - if (listeners[i].fn === fn) { - listener = listeners[i]; - listeners.splice(i, 1); - break; - } - } - } - } - - // set the removed listener to noop so that's not called if remove happens in fire - if (listener) { - listener.fn = L.Util.falseFn; - } - }, - - fire: function (type, data, propagate) { - if (!this.listens(type, propagate)) { return this; } - - var event = L.Util.extend({}, data, {type: type, target: this}), - events = this._events; - - if (events) { - var typeIndex = events[type + '_idx'], - i, len, listeners, id; - - if (events[type]) { - // make sure adding/removing listeners inside other listeners won't cause infinite loop - listeners = events[type].slice(); - - for (i = 0, len = listeners.length; i < len; i++) { - listeners[i].fn.call(this, event); - } - } - - // fire event for the context-indexed listeners as well - for (id in typeIndex) { - typeIndex[id].fn.call(typeIndex[id].ctx, event); - } - } - - if (propagate) { - // propagate the event to parents (set with addEventParent) - this._propagateEvent(event); - } - - return this; - }, - - listens: function (type, propagate) { - var events = this._events; - - if (events && (events[type] || events[type + '_len'])) { return true; } - - if (propagate) { - // also check parents for listeners if event propagates - for (var id in this._eventParents) { - if (this._eventParents[id].listens(type, propagate)) { return true; } - } - } - return false; - }, - - once: function (types, fn, context) { - - if (typeof types === 'object') { - for (var type in types) { - this.once(type, types[type], fn); - } - return this; - } - - var handler = L.bind(function () { - this - .off(types, fn, context) - .off(types, handler, context); - }, this); - - // add a listener that's executed once and removed after that - return this - .on(types, fn, context) - .on(types, handler, context); - }, - - // adds a parent to propagate events to (when you fire with true as a 3rd argument) - addEventParent: function (obj) { - this._eventParents = this._eventParents || {}; - this._eventParents[L.stamp(obj)] = obj; - return this; - }, - - removeEventParent: function (obj) { - if (this._eventParents) { - delete this._eventParents[L.stamp(obj)]; - } - return this; - }, - - _propagateEvent: function (e) { - for (var id in this._eventParents) { - this._eventParents[id].fire(e.type, L.extend({layer: e.target}, e), true); - } - } -}); - -var proto = L.Evented.prototype; - -// aliases; we should ditch those eventually -proto.addEventListener = proto.on; -proto.removeEventListener = proto.clearAllEventListeners = proto.off; -proto.addOneTimeEventListener = proto.once; -proto.fireEvent = proto.fire; -proto.hasEventListeners = proto.listens; - -L.Mixin = {Events: proto}; - - -/* - * L.Browser handles different browser and feature detections for internal Leaflet use. - */ - -(function () { - - var ua = navigator.userAgent.toLowerCase(), - doc = document.documentElement, - - ie = 'ActiveXObject' in window, - - webkit = ua.indexOf('webkit') !== -1, - phantomjs = ua.indexOf('phantom') !== -1, - android23 = ua.search('android [23]') !== -1, - chrome = ua.indexOf('chrome') !== -1, - gecko = ua.indexOf('gecko') !== -1 && !webkit && !window.opera && !ie, - - mobile = typeof orientation !== 'undefined' || ua.indexOf('mobile') !== -1, - msPointer = navigator.msPointerEnabled && navigator.msMaxTouchPoints && !window.PointerEvent, - pointer = (window.PointerEvent && navigator.pointerEnabled && navigator.maxTouchPoints) || msPointer, - - ie3d = ie && ('transition' in doc.style), - webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23, - gecko3d = 'MozPerspective' in doc.style, - opera12 = 'OTransition' in doc.style; - - var touch = !window.L_NO_TOUCH && !phantomjs && (pointer || 'ontouchstart' in window || - (window.DocumentTouch && document instanceof window.DocumentTouch)); - - L.Browser = { - ie: ie, - ielt9: ie && !document.addEventListener, - webkit: webkit, - gecko: gecko, - android: ua.indexOf('android') !== -1, - android23: android23, - chrome: chrome, - safari: !chrome && ua.indexOf('safari') !== -1, - - ie3d: ie3d, - webkit3d: webkit3d, - gecko3d: gecko3d, - opera12: opera12, - any3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantomjs, - - mobile: mobile, - mobileWebkit: mobile && webkit, - mobileWebkit3d: mobile && webkit3d, - mobileOpera: mobile && window.opera, - mobileGecko: mobile && gecko, - - touch: !!touch, - msPointer: !!msPointer, - pointer: !!pointer, - - retina: (window.devicePixelRatio || (window.screen.deviceXDPI / window.screen.logicalXDPI)) > 1 - }; - -}()); - - -/* - * L.Point represents a point with x and y coordinates. - */ - -L.Point = function (x, y, round) { - this.x = (round ? Math.round(x) : x); - this.y = (round ? Math.round(y) : y); -}; - -L.Point.prototype = { - - clone: function () { - return new L.Point(this.x, this.y); - }, - - // non-destructive, returns a new point - add: function (point) { - return this.clone()._add(L.point(point)); - }, - - // destructive, used directly for performance in situations where it's safe to modify existing point - _add: function (point) { - this.x += point.x; - this.y += point.y; - return this; - }, - - subtract: function (point) { - return this.clone()._subtract(L.point(point)); - }, - - _subtract: function (point) { - this.x -= point.x; - this.y -= point.y; - return this; - }, - - divideBy: function (num) { - return this.clone()._divideBy(num); - }, - - _divideBy: function (num) { - this.x /= num; - this.y /= num; - return this; - }, - - multiplyBy: function (num) { - return this.clone()._multiplyBy(num); - }, - - _multiplyBy: function (num) { - this.x *= num; - this.y *= num; - return this; - }, - - scaleBy: function(point) { - return new L.Point(this.x * point.x, this.y * point.y); - }, - - unscaleBy: function(point) { - return new L.Point(this.x / point.x, this.y / point.y); - }, - - round: function () { - return this.clone()._round(); - }, - - _round: function () { - this.x = Math.round(this.x); - this.y = Math.round(this.y); - return this; - }, - - floor: function () { - return this.clone()._floor(); - }, - - _floor: function () { - this.x = Math.floor(this.x); - this.y = Math.floor(this.y); - return this; - }, - - ceil: function () { - return this.clone()._ceil(); - }, - - _ceil: function () { - this.x = Math.ceil(this.x); - this.y = Math.ceil(this.y); - return this; - }, - - distanceTo: function (point) { - point = L.point(point); - - var x = point.x - this.x, - y = point.y - this.y; - - return Math.sqrt(x * x + y * y); - }, - - equals: function (point) { - point = L.point(point); - - return point.x === this.x && - point.y === this.y; - }, - - contains: function (point) { - point = L.point(point); - - return Math.abs(point.x) <= Math.abs(this.x) && - Math.abs(point.y) <= Math.abs(this.y); - }, - - toString: function () { - return 'Point(' + - L.Util.formatNum(this.x) + ', ' + - L.Util.formatNum(this.y) + ')'; - } -}; - -L.point = function (x, y, round) { - if (x instanceof L.Point) { - return x; - } - if (L.Util.isArray(x)) { - return new L.Point(x[0], x[1]); - } - if (x === undefined || x === null) { - return x; - } - return new L.Point(x, y, round); -}; - - -/* - * L.Bounds represents a rectangular area on the screen in pixel coordinates. - */ - -L.Bounds = function (a, b) { //(Point, Point) or Point[] - if (!a) { return; } - - var points = b ? [a, b] : a; - - for (var i = 0, len = points.length; i < len; i++) { - this.extend(points[i]); - } -}; - -L.Bounds.prototype = { - // extend the bounds to contain the given point - extend: function (point) { // (Point) - point = L.point(point); - - if (!this.min && !this.max) { - this.min = point.clone(); - this.max = point.clone(); - } else { - this.min.x = Math.min(point.x, this.min.x); - this.max.x = Math.max(point.x, this.max.x); - this.min.y = Math.min(point.y, this.min.y); - this.max.y = Math.max(point.y, this.max.y); - } - return this; - }, - - getCenter: function (round) { // (Boolean) -> Point - return new L.Point( - (this.min.x + this.max.x) / 2, - (this.min.y + this.max.y) / 2, round); - }, - - getBottomLeft: function () { // -> Point - return new L.Point(this.min.x, this.max.y); - }, - - getTopRight: function () { // -> Point - return new L.Point(this.max.x, this.min.y); - }, - - getSize: function () { - return this.max.subtract(this.min); - }, - - contains: function (obj) { // (Bounds) or (Point) -> Boolean - var min, max; - - if (typeof obj[0] === 'number' || obj instanceof L.Point) { - obj = L.point(obj); - } else { - obj = L.bounds(obj); - } - - if (obj instanceof L.Bounds) { - min = obj.min; - max = obj.max; - } else { - min = max = obj; - } - - return (min.x >= this.min.x) && - (max.x <= this.max.x) && - (min.y >= this.min.y) && - (max.y <= this.max.y); - }, - - intersects: function (bounds) { // (Bounds) -> Boolean - bounds = L.bounds(bounds); - - var min = this.min, - max = this.max, - min2 = bounds.min, - max2 = bounds.max, - xIntersects = (max2.x >= min.x) && (min2.x <= max.x), - yIntersects = (max2.y >= min.y) && (min2.y <= max.y); - - return xIntersects && yIntersects; - }, - - overlaps: function (bounds) { // (Bounds) -> Boolean - bounds = L.bounds(bounds); - - var min = this.min, - max = this.max, - min2 = bounds.min, - max2 = bounds.max, - xOverlaps = (max2.x > min.x) && (min2.x < max.x), - yOverlaps = (max2.y > min.y) && (min2.y < max.y); - - return xOverlaps && yOverlaps; - }, - - isValid: function () { - return !!(this.min && this.max); - } -}; - -L.bounds = function (a, b) { // (Bounds) or (Point, Point) or (Point[]) - if (!a || a instanceof L.Bounds) { - return a; - } - return new L.Bounds(a, b); -}; - - -/* - * L.Transformation is an utility class to perform simple point transformations through a 2d-matrix. - */ - -L.Transformation = function (a, b, c, d) { - this._a = a; - this._b = b; - this._c = c; - this._d = d; -}; - -L.Transformation.prototype = { - transform: function (point, scale) { // (Point, Number) -> Point - return this._transform(point.clone(), scale); - }, - - // destructive transform (faster) - _transform: function (point, scale) { - scale = scale || 1; - point.x = scale * (this._a * point.x + this._b); - point.y = scale * (this._c * point.y + this._d); - return point; - }, - - untransform: function (point, scale) { - scale = scale || 1; - return new L.Point( - (point.x / scale - this._b) / this._a, - (point.y / scale - this._d) / this._c); - } -}; - - -/* - * L.DomUtil contains various utility functions for working with DOM. - */ - -L.DomUtil = { - get: function (id) { - return typeof id === 'string' ? document.getElementById(id) : id; - }, - - getStyle: function (el, style) { - - var value = el.style[style] || (el.currentStyle && el.currentStyle[style]); - - if ((!value || value === 'auto') && document.defaultView) { - var css = document.defaultView.getComputedStyle(el, null); - value = css ? css[style] : null; - } - - return value === 'auto' ? null : value; - }, - - create: function (tagName, className, container) { - - var el = document.createElement(tagName); - el.className = className; - - if (container) { - container.appendChild(el); - } - - return el; - }, - - remove: function (el) { - var parent = el.parentNode; - if (parent) { - parent.removeChild(el); - } - }, - - empty: function (el) { - while (el.firstChild) { - el.removeChild(el.firstChild); - } - }, - - toFront: function (el) { - el.parentNode.appendChild(el); - }, - - toBack: function (el) { - var parent = el.parentNode; - parent.insertBefore(el, parent.firstChild); - }, - - hasClass: function (el, name) { - if (el.classList !== undefined) { - return el.classList.contains(name); - } - var className = L.DomUtil.getClass(el); - return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className); - }, - - addClass: function (el, name) { - if (el.classList !== undefined) { - var classes = L.Util.splitWords(name); - for (var i = 0, len = classes.length; i < len; i++) { - el.classList.add(classes[i]); - } - } else if (!L.DomUtil.hasClass(el, name)) { - var className = L.DomUtil.getClass(el); - L.DomUtil.setClass(el, (className ? className + ' ' : '') + name); - } - }, - - removeClass: function (el, name) { - if (el.classList !== undefined) { - el.classList.remove(name); - } else { - L.DomUtil.setClass(el, L.Util.trim((' ' + L.DomUtil.getClass(el) + ' ').replace(' ' + name + ' ', ' '))); - } - }, - - setClass: function (el, name) { - if (el.className.baseVal === undefined) { - el.className = name; - } else { - // in case of SVG element - el.className.baseVal = name; - } - }, - - getClass: function (el) { - return el.className.baseVal === undefined ? el.className : el.className.baseVal; - }, - - setOpacity: function (el, value) { - - if ('opacity' in el.style) { - el.style.opacity = value; - - } else if ('filter' in el.style) { - L.DomUtil._setOpacityIE(el, value); - } - }, - - _setOpacityIE: function (el, value) { - var filter = false, - filterName = 'DXImageTransform.Microsoft.Alpha'; - - // filters collection throws an error if we try to retrieve a filter that doesn't exist - try { - filter = el.filters.item(filterName); - } catch (e) { - // don't set opacity to 1 if we haven't already set an opacity, - // it isn't needed and breaks transparent pngs. - if (value === 1) { return; } - } - - value = Math.round(value * 100); - - if (filter) { - filter.Enabled = (value !== 100); - filter.Opacity = value; - } else { - el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')'; - } - }, - - testProp: function (props) { - - var style = document.documentElement.style; - - for (var i = 0; i < props.length; i++) { - if (props[i] in style) { - return props[i]; - } - } - return false; - }, - - setTransform: function (el, offset, scale) { - var pos = offset || new L.Point(0, 0); - - el.style[L.DomUtil.TRANSFORM] = - 'translate3d(' + pos.x + 'px,' + pos.y + 'px' + ',0)' + (scale ? ' scale(' + scale + ')' : ''); - }, - - setPosition: function (el, point) { // (HTMLElement, Point[, Boolean]) - - /*eslint-disable */ - el._leaflet_pos = point; - /*eslint-enable */ - - if (L.Browser.any3d) { - L.DomUtil.setTransform(el, point); - } else { - el.style.left = point.x + 'px'; - el.style.top = point.y + 'px'; - } - }, - - getPosition: function (el) { - // this method is only used for elements previously positioned using setPosition, - // so it's safe to cache the position for performance - - return el._leaflet_pos; - } -}; - - -(function () { - // prefix style property names - - L.DomUtil.TRANSFORM = L.DomUtil.testProp( - ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']); - - - // webkitTransition comes first because some browser versions that drop vendor prefix don't do - // the same for the transitionend event, in particular the Android 4.1 stock browser - - var transition = L.DomUtil.TRANSITION = L.DomUtil.testProp( - ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']); - - L.DomUtil.TRANSITION_END = - transition === 'webkitTransition' || transition === 'OTransition' ? transition + 'End' : 'transitionend'; - - - if ('onselectstart' in document) { - L.DomUtil.disableTextSelection = function () { - L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault); - }; - L.DomUtil.enableTextSelection = function () { - L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault); - }; - - } else { - var userSelectProperty = L.DomUtil.testProp( - ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']); - - L.DomUtil.disableTextSelection = function () { - if (userSelectProperty) { - var style = document.documentElement.style; - this._userSelect = style[userSelectProperty]; - style[userSelectProperty] = 'none'; - } - }; - L.DomUtil.enableTextSelection = function () { - if (userSelectProperty) { - document.documentElement.style[userSelectProperty] = this._userSelect; - delete this._userSelect; - } - }; - } - - L.DomUtil.disableImageDrag = function () { - L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault); - }; - L.DomUtil.enableImageDrag = function () { - L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault); - }; - - L.DomUtil.preventOutline = function (element) { - while (element.tabIndex === -1) { - element = element.parentNode; - } - if (!element) { return; } - L.DomUtil.restoreOutline(); - this._outlineElement = element; - this._outlineStyle = element.style.outline; - element.style.outline = 'none'; - L.DomEvent.on(window, 'keydown', L.DomUtil.restoreOutline, this); - }; - L.DomUtil.restoreOutline = function () { - if (!this._outlineElement) { return; } - this._outlineElement.style.outline = this._outlineStyle; - delete this._outlineElement; - delete this._outlineStyle; - L.DomEvent.off(window, 'keydown', L.DomUtil.restoreOutline, this); - }; -})(); - - -/* - * L.LatLng represents a geographical point with latitude and longitude coordinates. - */ - -L.LatLng = function (lat, lng, alt) { - if (isNaN(lat) || isNaN(lng)) { - throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')'); - } - - this.lat = +lat; - this.lng = +lng; - - if (alt !== undefined) { - this.alt = +alt; - } -}; - -L.LatLng.prototype = { - equals: function (obj, maxMargin) { - if (!obj) { return false; } - - obj = L.latLng(obj); - - var margin = Math.max( - Math.abs(this.lat - obj.lat), - Math.abs(this.lng - obj.lng)); - - return margin <= (maxMargin === undefined ? 1.0E-9 : maxMargin); - }, - - toString: function (precision) { - return 'LatLng(' + - L.Util.formatNum(this.lat, precision) + ', ' + - L.Util.formatNum(this.lng, precision) + ')'; - }, - - distanceTo: function (other) { - return L.CRS.Earth.distance(this, L.latLng(other)); - }, - - wrap: function () { - return L.CRS.Earth.wrapLatLng(this); - }, - - toBounds: function (sizeInMeters) { - var latAccuracy = 180 * sizeInMeters / 40075017, - lngAccuracy = latAccuracy / Math.cos((Math.PI / 180) * this.lat); - - return L.latLngBounds( - [this.lat - latAccuracy, this.lng - lngAccuracy], - [this.lat + latAccuracy, this.lng + lngAccuracy]); - }, - - clone: function () { - return new L.LatLng(this.lat, this.lng, this.alt); - } -}; - - -// constructs LatLng with different signatures -// (LatLng) or ([Number, Number]) or (Number, Number) or (Object) - -L.latLng = function (a, b, c) { - if (a instanceof L.LatLng) { - return a; - } - if (L.Util.isArray(a) && typeof a[0] !== 'object') { - if (a.length === 3) { - return new L.LatLng(a[0], a[1], a[2]); - } - if (a.length === 2) { - return new L.LatLng(a[0], a[1]); - } - return null; - } - if (a === undefined || a === null) { - return a; - } - if (typeof a === 'object' && 'lat' in a) { - return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt); - } - if (b === undefined) { - return null; - } - return new L.LatLng(a, b, c); -}; - - -/* - * L.LatLngBounds represents a rectangular area on the map in geographical coordinates. - */ - -L.LatLngBounds = function (southWest, northEast) { // (LatLng, LatLng) or (LatLng[]) - if (!southWest) { return; } - - var latlngs = northEast ? [southWest, northEast] : southWest; - - for (var i = 0, len = latlngs.length; i < len; i++) { - this.extend(latlngs[i]); - } -}; - -L.LatLngBounds.prototype = { - - // extend the bounds to contain the given point or bounds - extend: function (obj) { // (LatLng) or (LatLngBounds) - var sw = this._southWest, - ne = this._northEast, - sw2, ne2; - - if (obj instanceof L.LatLng) { - sw2 = obj; - ne2 = obj; - - } else if (obj instanceof L.LatLngBounds) { - sw2 = obj._southWest; - ne2 = obj._northEast; - - if (!sw2 || !ne2) { return this; } - - } else { - return obj ? this.extend(L.latLng(obj) || L.latLngBounds(obj)) : this; - } - - if (!sw && !ne) { - this._southWest = new L.LatLng(sw2.lat, sw2.lng); - this._northEast = new L.LatLng(ne2.lat, ne2.lng); - } else { - sw.lat = Math.min(sw2.lat, sw.lat); - sw.lng = Math.min(sw2.lng, sw.lng); - ne.lat = Math.max(ne2.lat, ne.lat); - ne.lng = Math.max(ne2.lng, ne.lng); - } - - return this; - }, - - // extend the bounds by a percentage - pad: function (bufferRatio) { // (Number) -> LatLngBounds - var sw = this._southWest, - ne = this._northEast, - heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio, - widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio; - - return new L.LatLngBounds( - new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer), - new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer)); - }, - - getCenter: function () { // -> LatLng - return new L.LatLng( - (this._southWest.lat + this._northEast.lat) / 2, - (this._southWest.lng + this._northEast.lng) / 2); - }, - - getSouthWest: function () { - return this._southWest; - }, - - getNorthEast: function () { - return this._northEast; - }, - - getNorthWest: function () { - return new L.LatLng(this.getNorth(), this.getWest()); - }, - - getSouthEast: function () { - return new L.LatLng(this.getSouth(), this.getEast()); - }, - - getWest: function () { - return this._southWest.lng; - }, - - getSouth: function () { - return this._southWest.lat; - }, - - getEast: function () { - return this._northEast.lng; - }, - - getNorth: function () { - return this._northEast.lat; - }, - - contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean - if (typeof obj[0] === 'number' || obj instanceof L.LatLng) { - obj = L.latLng(obj); - } else { - obj = L.latLngBounds(obj); - } - - var sw = this._southWest, - ne = this._northEast, - sw2, ne2; - - if (obj instanceof L.LatLngBounds) { - sw2 = obj.getSouthWest(); - ne2 = obj.getNorthEast(); - } else { - sw2 = ne2 = obj; - } - - return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) && - (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng); - }, - - intersects: function (bounds) { // (LatLngBounds) -> Boolean - bounds = L.latLngBounds(bounds); - - var sw = this._southWest, - ne = this._northEast, - sw2 = bounds.getSouthWest(), - ne2 = bounds.getNorthEast(), - - latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat), - lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng); - - return latIntersects && lngIntersects; - }, - - overlaps: function (bounds) { // (LatLngBounds) -> Boolean - bounds = L.latLngBounds(bounds); - - var sw = this._southWest, - ne = this._northEast, - sw2 = bounds.getSouthWest(), - ne2 = bounds.getNorthEast(), - - latOverlaps = (ne2.lat > sw.lat) && (sw2.lat < ne.lat), - lngOverlaps = (ne2.lng > sw.lng) && (sw2.lng < ne.lng); - - return latOverlaps && lngOverlaps; - }, - - toBBoxString: function () { - return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(','); - }, - - equals: function (bounds) { // (LatLngBounds) - if (!bounds) { return false; } - - bounds = L.latLngBounds(bounds); - - return this._southWest.equals(bounds.getSouthWest()) && - this._northEast.equals(bounds.getNorthEast()); - }, - - isValid: function () { - return !!(this._southWest && this._northEast); - } -}; - -//TODO International date line? - -L.latLngBounds = function (a, b) { // (LatLngBounds) or (LatLng, LatLng) - if (!a || a instanceof L.LatLngBounds) { - return a; - } - return new L.LatLngBounds(a, b); -}; - - -/* - * Simple equirectangular (Plate Carree) projection, used by CRS like EPSG:4326 and Simple. - */ - -L.Projection = {}; - -L.Projection.LonLat = { - project: function (latlng) { - return new L.Point(latlng.lng, latlng.lat); - }, - - unproject: function (point) { - return new L.LatLng(point.y, point.x); - }, - - bounds: L.bounds([-180, -90], [180, 90]) -}; - - -/* - * Spherical Mercator is the most popular map projection, used by EPSG:3857 CRS used by default. - */ - -L.Projection.SphericalMercator = { - - R: 6378137, - - project: function (latlng) { - var d = Math.PI / 180, - max = 1 - 1E-15, - sin = Math.max(Math.min(Math.sin(latlng.lat * d), max), -max); - - return new L.Point( - this.R * latlng.lng * d, - this.R * Math.log((1 + sin) / (1 - sin)) / 2); - }, - - unproject: function (point) { - var d = 180 / Math.PI; - - return new L.LatLng( - (2 * Math.atan(Math.exp(point.y / this.R)) - (Math.PI / 2)) * d, - point.x * d / this.R); - }, - - bounds: (function () { - var d = 6378137 * Math.PI; - return L.bounds([-d, -d], [d, d]); - })() -}; - - -/* - * L.CRS is the base object for all defined CRS (Coordinate Reference Systems) in Leaflet. - */ - -L.CRS = { - // converts geo coords to pixel ones - latLngToPoint: function (latlng, zoom) { - var projectedPoint = this.projection.project(latlng), - scale = this.scale(zoom); - - return this.transformation._transform(projectedPoint, scale); - }, - - // converts pixel coords to geo coords - pointToLatLng: function (point, zoom) { - var scale = this.scale(zoom), - untransformedPoint = this.transformation.untransform(point, scale); - - return this.projection.unproject(untransformedPoint); - }, - - // converts geo coords to projection-specific coords (e.g. in meters) - project: function (latlng) { - return this.projection.project(latlng); - }, - - // converts projected coords to geo coords - unproject: function (point) { - return this.projection.unproject(point); - }, - - // defines how the world scales with zoom - scale: function (zoom) { - return 256 * Math.pow(2, zoom); - }, - - // returns the bounds of the world in projected coords if applicable - getProjectedBounds: function (zoom) { - if (this.infinite) { return null; } - - var b = this.projection.bounds, - s = this.scale(zoom), - min = this.transformation.transform(b.min, s), - max = this.transformation.transform(b.max, s); - - return L.bounds(min, max); - }, - - // whether a coordinate axis wraps in a given range (e.g. longitude from -180 to 180); depends on CRS - // wrapLng: [min, max], - // wrapLat: [min, max], - - // if true, the coordinate space will be unbounded (infinite in all directions) - // infinite: false, - - // wraps geo coords in certain ranges if applicable - wrapLatLng: function (latlng) { - var lng = this.wrapLng ? L.Util.wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng, - lat = this.wrapLat ? L.Util.wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat, - alt = latlng.alt; - - return L.latLng(lat, lng, alt); - } -}; - - -/* - * A simple CRS that can be used for flat non-Earth maps like panoramas or game maps. - */ - -L.CRS.Simple = L.extend({}, L.CRS, { - projection: L.Projection.LonLat, - transformation: new L.Transformation(1, 0, -1, 0), - - scale: function (zoom) { - return Math.pow(2, zoom); - }, - - distance: function (latlng1, latlng2) { - var dx = latlng2.lng - latlng1.lng, - dy = latlng2.lat - latlng1.lat; - - return Math.sqrt(dx * dx + dy * dy); - }, - - infinite: true -}); - - -/* - * L.CRS.Earth is the base class for all CRS representing Earth. - */ - -L.CRS.Earth = L.extend({}, L.CRS, { - wrapLng: [-180, 180], - - R: 6378137, - - // distance between two geographical points using spherical law of cosines approximation - distance: function (latlng1, latlng2) { - var rad = Math.PI / 180, - lat1 = latlng1.lat * rad, - lat2 = latlng2.lat * rad, - a = Math.sin(lat1) * Math.sin(lat2) + - Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad); - - return this.R * Math.acos(Math.min(a, 1)); - } -}); - - -/* - * L.CRS.EPSG3857 (Spherical Mercator) is the most common CRS for web mapping and is used by Leaflet by default. - */ - -L.CRS.EPSG3857 = L.extend({}, L.CRS.Earth, { - code: 'EPSG:3857', - projection: L.Projection.SphericalMercator, - - transformation: (function () { - var scale = 0.5 / (Math.PI * L.Projection.SphericalMercator.R); - return new L.Transformation(scale, 0.5, -scale, 0.5); - }()) -}); - -L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, { - code: 'EPSG:900913' -}); - - -/* - * L.CRS.EPSG4326 is a CRS popular among advanced GIS specialists. - */ - -L.CRS.EPSG4326 = L.extend({}, L.CRS.Earth, { - code: 'EPSG:4326', - projection: L.Projection.LonLat, - transformation: new L.Transformation(1 / 180, 1, -1 / 180, 0.5) -}); - - -/* - * L.Map is the central class of the API - it is used to create a map. - */ - -L.Map = L.Evented.extend({ - - options: { - crs: L.CRS.EPSG3857, - - /* - center: LatLng, - zoom: Number, - layers: Array, - */ - - fadeAnimation: true, - trackResize: true, - markerZoomAnimation: true, - maxBoundsViscosity: 0.0 - }, - - initialize: function (id, options) { // (HTMLElement or String, Object) - options = L.setOptions(this, options); - - this._initContainer(id); - this._initLayout(); - - // hack for https://github.com/Leaflet/Leaflet/issues/1980 - this._onResize = L.bind(this._onResize, this); - - this._initEvents(); - - if (options.maxBounds) { - this.setMaxBounds(options.maxBounds); - } - - if (options.zoom !== undefined) { - this._zoom = this._limitZoom(options.zoom); - } - - if (options.center && options.zoom !== undefined) { - this.setView(L.latLng(options.center), options.zoom, {reset: true}); - } - - this._handlers = []; - this._layers = {}; - this._zoomBoundLayers = {}; - this._sizeChanged = true; - - this.callInitHooks(); - - this._addLayers(this.options.layers); - }, - - - // public methods that modify map state - - // replaced by animation-powered implementation in Map.PanAnimation.js - setView: function (center, zoom) { - zoom = zoom === undefined ? this.getZoom() : zoom; - this._resetView(L.latLng(center), zoom); - return this; - }, - - setZoom: function (zoom, options) { - if (!this._loaded) { - this._zoom = zoom; - return this; - } - return this.setView(this.getCenter(), zoom, {zoom: options}); - }, - - zoomIn: function (delta, options) { - return this.setZoom(this._zoom + (delta || 1), options); - }, - - zoomOut: function (delta, options) { - return this.setZoom(this._zoom - (delta || 1), options); - }, - - setZoomAround: function (latlng, zoom, options) { - var scale = this.getZoomScale(zoom), - viewHalf = this.getSize().divideBy(2), - containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng), - - centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale), - newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset)); - - return this.setView(newCenter, zoom, {zoom: options}); - }, - - _getBoundsCenterZoom: function (bounds, options) { - - options = options || {}; - bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds); - - var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]), - paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]), - - zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR)); - - zoom = options.maxZoom ? Math.min(options.maxZoom, zoom) : zoom; - - var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2), - - swPoint = this.project(bounds.getSouthWest(), zoom), - nePoint = this.project(bounds.getNorthEast(), zoom), - center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom); - - return { - center: center, - zoom: zoom - }; - }, - - fitBounds: function (bounds, options) { - var target = this._getBoundsCenterZoom(bounds, options); - return this.setView(target.center, target.zoom, options); - }, - - fitWorld: function (options) { - return this.fitBounds([[-90, -180], [90, 180]], options); - }, - - panTo: function (center, options) { // (LatLng) - return this.setView(center, this._zoom, {pan: options}); - }, - - panBy: function (offset) { // (Point) - // replaced with animated panBy in Map.PanAnimation.js - this.fire('movestart'); - - this._rawPanBy(L.point(offset)); - - this.fire('move'); - return this.fire('moveend'); - }, - - setMaxBounds: function (bounds) { - bounds = L.latLngBounds(bounds); - - if (!bounds) { - return this.off('moveend', this._panInsideMaxBounds); - } else if (this.options.maxBounds) { - this.off('moveend', this._panInsideMaxBounds); - } - - this.options.maxBounds = bounds; - - if (this._loaded) { - this._panInsideMaxBounds(); - } - - return this.on('moveend', this._panInsideMaxBounds); - }, - - setMinZoom: function (zoom) { - this.options.minZoom = zoom; - - if (this._loaded && this.getZoom() < this.options.minZoom) { - return this.setZoom(zoom); - } - - return this; - }, - - setMaxZoom: function (zoom) { - this.options.maxZoom = zoom; - - if (this._loaded && (this.getZoom() > this.options.maxZoom)) { - return this.setZoom(zoom); - } - - return this; - }, - - panInsideBounds: function (bounds, options) { - var center = this.getCenter(), - newCenter = this._limitCenter(center, this._zoom, L.latLngBounds(bounds)); - - if (center.equals(newCenter)) { return this; } - - return this.panTo(newCenter, options); - }, - - invalidateSize: function (options) { - if (!this._loaded) { return this; } - - options = L.extend({ - animate: false, - pan: true - }, options === true ? {animate: true} : options); - - var oldSize = this.getSize(); - this._sizeChanged = true; - this._lastCenter = null; - - var newSize = this.getSize(), - oldCenter = oldSize.divideBy(2).round(), - newCenter = newSize.divideBy(2).round(), - offset = oldCenter.subtract(newCenter); - - if (!offset.x && !offset.y) { return this; } - - if (options.animate && options.pan) { - this.panBy(offset); - - } else { - if (options.pan) { - this._rawPanBy(offset); - } - - this.fire('move'); - - if (options.debounceMoveend) { - clearTimeout(this._sizeTimer); - this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200); - } else { - this.fire('moveend'); - } - } - - return this.fire('resize', { - oldSize: oldSize, - newSize: newSize - }); - }, - - stop: function () { - L.Util.cancelAnimFrame(this._flyToFrame); - if (this._panAnim) { - this._panAnim.stop(); - } - return this; - }, - - // TODO handler.addTo - addHandler: function (name, HandlerClass) { - if (!HandlerClass) { return this; } - - var handler = this[name] = new HandlerClass(this); - - this._handlers.push(handler); - - if (this.options[name]) { - handler.enable(); - } - - return this; - }, - - remove: function () { - - this._initEvents(true); - - try { - // throws error in IE6-8 - delete this._container._leaflet; - } catch (e) { - this._container._leaflet = undefined; - } - - L.DomUtil.remove(this._mapPane); - - if (this._clearControlPos) { - this._clearControlPos(); - } - - this._clearHandlers(); - - if (this._loaded) { - this.fire('unload'); - } - - for (var i in this._layers) { - this._layers[i].remove(); - } - - return this; - }, - - createPane: function (name, container) { - var className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''), - pane = L.DomUtil.create('div', className, container || this._mapPane); - - if (name) { - this._panes[name] = pane; - } - return pane; - }, - - - // public methods for getting map state - - getCenter: function () { // (Boolean) -> LatLng - this._checkIfLoaded(); - - if (this._lastCenter && !this._moved()) { - return this._lastCenter; - } - return this.layerPointToLatLng(this._getCenterLayerPoint()); - }, - - getZoom: function () { - return this._zoom; - }, - - getBounds: function () { - var bounds = this.getPixelBounds(), - sw = this.unproject(bounds.getBottomLeft()), - ne = this.unproject(bounds.getTopRight()); - - return new L.LatLngBounds(sw, ne); - }, - - getMinZoom: function () { - return this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom; - }, - - getMaxZoom: function () { - return this.options.maxZoom === undefined ? - (this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) : - this.options.maxZoom; - }, - - getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number - bounds = L.latLngBounds(bounds); - - var zoom = this.getMinZoom() - (inside ? 1 : 0), - maxZoom = this.getMaxZoom(), - size = this.getSize(), - - nw = bounds.getNorthWest(), - se = bounds.getSouthEast(), - - zoomNotFound = true, - boundsSize; - - padding = L.point(padding || [0, 0]); - - do { - zoom++; - boundsSize = this.project(se, zoom).subtract(this.project(nw, zoom)).add(padding).floor(); - zoomNotFound = !inside ? size.contains(boundsSize) : boundsSize.x < size.x || boundsSize.y < size.y; - - } while (zoomNotFound && zoom <= maxZoom); - - if (zoomNotFound && inside) { - return null; - } - - return inside ? zoom : zoom - 1; - }, - - getSize: function () { - if (!this._size || this._sizeChanged) { - this._size = new L.Point( - this._container.clientWidth, - this._container.clientHeight); - - this._sizeChanged = false; - } - return this._size.clone(); - }, - - getPixelBounds: function (center, zoom) { - var topLeftPoint = this._getTopLeftPoint(center, zoom); - return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize())); - }, - - getPixelOrigin: function () { - this._checkIfLoaded(); - return this._pixelOrigin; - }, - - getPixelWorldBounds: function (zoom) { - return this.options.crs.getProjectedBounds(zoom === undefined ? this.getZoom() : zoom); - }, - - getPane: function (pane) { - return typeof pane === 'string' ? this._panes[pane] : pane; - }, - - getPanes: function () { - return this._panes; - }, - - getContainer: function () { - return this._container; - }, - - - // TODO replace with universal implementation after refactoring projections - - getZoomScale: function (toZoom, fromZoom) { - var crs = this.options.crs; - fromZoom = fromZoom === undefined ? this._zoom : fromZoom; - return crs.scale(toZoom) / crs.scale(fromZoom); - }, - - getScaleZoom: function (scale, fromZoom) { - fromZoom = fromZoom === undefined ? this._zoom : fromZoom; - return fromZoom + (Math.log(scale) / Math.LN2); - }, - - - // conversion methods - - project: function (latlng, zoom) { // (LatLng[, Number]) -> Point - zoom = zoom === undefined ? this._zoom : zoom; - return this.options.crs.latLngToPoint(L.latLng(latlng), zoom); - }, - - unproject: function (point, zoom) { // (Point[, Number]) -> LatLng - zoom = zoom === undefined ? this._zoom : zoom; - return this.options.crs.pointToLatLng(L.point(point), zoom); - }, - - layerPointToLatLng: function (point) { // (Point) - var projectedPoint = L.point(point).add(this.getPixelOrigin()); - return this.unproject(projectedPoint); - }, - - latLngToLayerPoint: function (latlng) { // (LatLng) - var projectedPoint = this.project(L.latLng(latlng))._round(); - return projectedPoint._subtract(this.getPixelOrigin()); - }, - - wrapLatLng: function (latlng) { - return this.options.crs.wrapLatLng(L.latLng(latlng)); - }, - - distance: function (latlng1, latlng2) { - return this.options.crs.distance(L.latLng(latlng1), L.latLng(latlng2)); - }, - - containerPointToLayerPoint: function (point) { // (Point) - return L.point(point).subtract(this._getMapPanePos()); - }, - - layerPointToContainerPoint: function (point) { // (Point) - return L.point(point).add(this._getMapPanePos()); - }, - - containerPointToLatLng: function (point) { - var layerPoint = this.containerPointToLayerPoint(L.point(point)); - return this.layerPointToLatLng(layerPoint); - }, - - latLngToContainerPoint: function (latlng) { - return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng))); - }, - - mouseEventToContainerPoint: function (e) { // (MouseEvent) - return L.DomEvent.getMousePosition(e, this._container); - }, - - mouseEventToLayerPoint: function (e) { // (MouseEvent) - return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e)); - }, - - mouseEventToLatLng: function (e) { // (MouseEvent) - return this.layerPointToLatLng(this.mouseEventToLayerPoint(e)); - }, - - - // map initialization methods - - _initContainer: function (id) { - var container = this._container = L.DomUtil.get(id); - - if (!container) { - throw new Error('Map container not found.'); - } else if (container._leaflet) { - throw new Error('Map container is already initialized.'); - } - - L.DomEvent.addListener(container, 'scroll', this._onScroll, this); - container._leaflet = true; - }, - - _initLayout: function () { - var container = this._container; - - this._fadeAnimated = this.options.fadeAnimation && L.Browser.any3d; - - L.DomUtil.addClass(container, 'leaflet-container' + - (L.Browser.touch ? ' leaflet-touch' : '') + - (L.Browser.retina ? ' leaflet-retina' : '') + - (L.Browser.ielt9 ? ' leaflet-oldie' : '') + - (L.Browser.safari ? ' leaflet-safari' : '') + - (this._fadeAnimated ? ' leaflet-fade-anim' : '')); - - var position = L.DomUtil.getStyle(container, 'position'); - - if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') { - container.style.position = 'relative'; - } - - this._initPanes(); - - if (this._initControlPos) { - this._initControlPos(); - } - }, - - _initPanes: function () { - var panes = this._panes = {}; - this._paneRenderers = {}; - - this._mapPane = this.createPane('mapPane', this._container); - L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0)); - - this.createPane('tilePane'); - this.createPane('shadowPane'); - this.createPane('overlayPane'); - this.createPane('markerPane'); - this.createPane('popupPane'); - - if (!this.options.markerZoomAnimation) { - L.DomUtil.addClass(panes.markerPane, 'leaflet-zoom-hide'); - L.DomUtil.addClass(panes.shadowPane, 'leaflet-zoom-hide'); - } - }, - - - // private methods that modify map state - - _resetView: function (center, zoom) { - L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0)); - - var loading = !this._loaded; - this._loaded = true; - zoom = this._limitZoom(zoom); - - var zoomChanged = this._zoom !== zoom; - this - ._moveStart(zoomChanged) - ._move(center, zoom) - ._moveEnd(zoomChanged); - - this.fire('viewreset'); - - if (loading) { - this.fire('load'); - } - }, - - _moveStart: function (zoomChanged) { - if (zoomChanged) { - this.fire('zoomstart'); - } - return this.fire('movestart'); - }, - - _move: function (center, zoom, data) { - if (zoom === undefined) { - zoom = this._zoom; - } - - var zoomChanged = this._zoom !== zoom; - - this._zoom = zoom; - this._lastCenter = center; - this._pixelOrigin = this._getNewPixelOrigin(center); - - if (zoomChanged) { - this.fire('zoom', data); - } - return this.fire('move', data); - }, - - _moveEnd: function (zoomChanged) { - if (zoomChanged) { - this.fire('zoomend'); - } - return this.fire('moveend'); - }, - - _rawPanBy: function (offset) { - L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset)); - }, - - _getZoomSpan: function () { - return this.getMaxZoom() - this.getMinZoom(); - }, - - _panInsideMaxBounds: function () { - this.panInsideBounds(this.options.maxBounds); - }, - - _checkIfLoaded: function () { - if (!this._loaded) { - throw new Error('Set map center and zoom first.'); - } - }, - - // DOM event handling - - _initEvents: function (remove) { - if (!L.DomEvent) { return; } - - this._targets = {}; - this._targets[L.stamp(this._container)] = this; - - var onOff = remove ? 'off' : 'on'; - - L.DomEvent[onOff](this._container, 'click dblclick mousedown mouseup ' + - 'mouseover mouseout mousemove contextmenu keypress', this._handleDOMEvent, this); - - if (this.options.trackResize) { - L.DomEvent[onOff](window, 'resize', this._onResize, this); - } - }, - - _onResize: function () { - L.Util.cancelAnimFrame(this._resizeRequest); - this._resizeRequest = L.Util.requestAnimFrame( - function () { this.invalidateSize({debounceMoveend: true}); }, this, false, this._container); - }, - - _onScroll: function () { - this._container.scrollTop = 0; - this._container.scrollLeft = 0; - }, - - _findEventTargets: function (src, type, bubble) { - var targets = [], target; - while (src) { - target = this._targets[L.stamp(src)]; - if (target && target.listens(type, true)) { - targets.push(target); - if (!bubble) { break; } - } - if (src === this._container) { - break; - } - src = src.parentNode; - } - return targets; - }, - - _handleDOMEvent: function (e) { - if (!this._loaded || L.DomEvent._skipped(e)) { return; } - - // find the layer the event is propagating from and its parents - var type = e.type === 'keypress' && e.keyCode === 13 ? 'click' : e.type; - - if (e.type === 'click') { - // Fire a synthetic 'preclick' event which propagates up (mainly for closing popups). - var synth = L.Util.extend({}, e); - synth.type = 'preclick'; - this._handleDOMEvent(synth); - } - - if (type === 'mousedown') { - // prevents outline when clicking on keyboard-focusable element - L.DomUtil.preventOutline(e.target || e.srcElement); - } - - this._fireDOMEvent(e, type); - }, - - _fireDOMEvent: function (e, type, targets) { - - if (type === 'contextmenu') { - L.DomEvent.preventDefault(e); - } - - var isHover = type === 'mouseover' || type === 'mouseout'; - targets = (targets || []).concat(this._findEventTargets(e.target || e.srcElement, type, !isHover)); - - if (!targets.length) { - targets = [this]; - - // special case for map mouseover/mouseout events so that they're actually mouseenter/mouseleave - if (isHover && !L.DomEvent._checkMouse(this._container, e)) { return; } - } - - var target = targets[0]; - - // prevents firing click after you just dragged an object - if (e.type === 'click' && !e._simulated && this._draggableMoved(target)) { return; } - - var data = { - originalEvent: e - }; - - if (e.type !== 'keypress') { - var isMarker = target instanceof L.Marker; - data.containerPoint = isMarker ? - this.latLngToContainerPoint(target.getLatLng()) : this.mouseEventToContainerPoint(e); - data.layerPoint = this.containerPointToLayerPoint(data.containerPoint); - data.latlng = isMarker ? target.getLatLng() : this.layerPointToLatLng(data.layerPoint); - } - - for (var i = 0; i < targets.length; i++) { - targets[i].fire(type, data, true); - if (data.originalEvent._stopped - || (targets[i].options.nonBubblingEvents && L.Util.indexOf(targets[i].options.nonBubblingEvents, type) !== -1)) { return; } - } - }, - - _draggableMoved: function (obj) { - obj = obj.options.draggable ? obj : this; - return (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved()); - }, - - _clearHandlers: function () { - for (var i = 0, len = this._handlers.length; i < len; i++) { - this._handlers[i].disable(); - } - }, - - whenReady: function (callback, context) { - if (this._loaded) { - callback.call(context || this, {target: this}); - } else { - this.on('load', callback, context); - } - return this; - }, - - - // private methods for getting map state - - _getMapPanePos: function () { - return L.DomUtil.getPosition(this._mapPane) || new L.Point(0, 0); - }, - - _moved: function () { - var pos = this._getMapPanePos(); - return pos && !pos.equals([0, 0]); - }, - - _getTopLeftPoint: function (center, zoom) { - var pixelOrigin = center && zoom !== undefined ? - this._getNewPixelOrigin(center, zoom) : - this.getPixelOrigin(); - return pixelOrigin.subtract(this._getMapPanePos()); - }, - - _getNewPixelOrigin: function (center, zoom) { - var viewHalf = this.getSize()._divideBy(2); - return this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round(); - }, - - _latLngToNewLayerPoint: function (latlng, zoom, center) { - var topLeft = this._getNewPixelOrigin(center, zoom); - return this.project(latlng, zoom)._subtract(topLeft); - }, - - // layer point of the current center - _getCenterLayerPoint: function () { - return this.containerPointToLayerPoint(this.getSize()._divideBy(2)); - }, - - // offset of the specified place to the current center in pixels - _getCenterOffset: function (latlng) { - return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint()); - }, - - // adjust center for view to get inside bounds - _limitCenter: function (center, zoom, bounds) { - - if (!bounds) { return center; } - - var centerPoint = this.project(center, zoom), - viewHalf = this.getSize().divideBy(2), - viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)), - offset = this._getBoundsOffset(viewBounds, bounds, zoom); - - return this.unproject(centerPoint.add(offset), zoom); - }, - - // adjust offset for view to get inside bounds - _limitOffset: function (offset, bounds) { - if (!bounds) { return offset; } - - var viewBounds = this.getPixelBounds(), - newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset)); - - return offset.add(this._getBoundsOffset(newBounds, bounds)); - }, - - // returns offset needed for pxBounds to get inside maxBounds at a specified zoom - _getBoundsOffset: function (pxBounds, maxBounds, zoom) { - var nwOffset = this.project(maxBounds.getNorthWest(), zoom).subtract(pxBounds.min), - seOffset = this.project(maxBounds.getSouthEast(), zoom).subtract(pxBounds.max), - - dx = this._rebound(nwOffset.x, -seOffset.x), - dy = this._rebound(nwOffset.y, -seOffset.y); - - return new L.Point(dx, dy); - }, - - _rebound: function (left, right) { - return left + right > 0 ? - Math.round(left - right) / 2 : - Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right)); - }, - - _limitZoom: function (zoom) { - var min = this.getMinZoom(), - max = this.getMaxZoom(); - if (!L.Browser.any3d) { zoom = Math.round(zoom); } - - return Math.max(min, Math.min(max, zoom)); - } -}); - -L.map = function (id, options) { - return new L.Map(id, options); -}; - - - -L.Layer = L.Evented.extend({ - - options: { - pane: 'overlayPane', - nonBubblingEvents: [] // Array of events that should not be bubbled to DOM parents (like the map) - }, - - addTo: function (map) { - map.addLayer(this); - return this; - }, - - remove: function () { - return this.removeFrom(this._map || this._mapToAdd); - }, - - removeFrom: function (obj) { - if (obj) { - obj.removeLayer(this); - } - return this; - }, - - getPane: function (name) { - return this._map.getPane(name ? (this.options[name] || name) : this.options.pane); - }, - - addInteractiveTarget: function (targetEl) { - this._map._targets[L.stamp(targetEl)] = this; - return this; - }, - - removeInteractiveTarget: function (targetEl) { - delete this._map._targets[L.stamp(targetEl)]; - return this; - }, - - isPopupOpen: function() { - return this._popup.isOpen(); - }, - - _layerAdd: function (e) { - var map = e.target; - - // check in case layer gets added and then removed before the map is ready - if (!map.hasLayer(this)) { return; } - - this._map = map; - this._zoomAnimated = map._zoomAnimated; - - this.onAdd(map); - - if (this.getAttribution && this._map.attributionControl) { - this._map.attributionControl.addAttribution(this.getAttribution()); - } - - if (this.getEvents) { - map.on(this.getEvents(), this); - } - - this.fire('add'); - map.fire('layeradd', {layer: this}); - } -}); - - -L.Map.include({ - addLayer: function (layer) { - var id = L.stamp(layer); - if (this._layers[id]) { return layer; } - this._layers[id] = layer; - - layer._mapToAdd = this; - - if (layer.beforeAdd) { - layer.beforeAdd(this); - } - - this.whenReady(layer._layerAdd, layer); - - return this; - }, - - removeLayer: function (layer) { - var id = L.stamp(layer); - - if (!this._layers[id]) { return this; } - - if (this._loaded) { - layer.onRemove(this); - } - - if (layer.getAttribution && this.attributionControl) { - this.attributionControl.removeAttribution(layer.getAttribution()); - } - - if (layer.getEvents) { - this.off(layer.getEvents(), layer); - } - - delete this._layers[id]; - - if (this._loaded) { - this.fire('layerremove', {layer: layer}); - layer.fire('remove'); - } - - layer._map = layer._mapToAdd = null; - - return this; - }, - - hasLayer: function (layer) { - return !!layer && (L.stamp(layer) in this._layers); - }, - - eachLayer: function (method, context) { - for (var i in this._layers) { - method.call(context, this._layers[i]); - } - return this; - }, - - _addLayers: function (layers) { - layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : []; - - for (var i = 0, len = layers.length; i < len; i++) { - this.addLayer(layers[i]); - } - }, - - _addZoomLimit: function (layer) { - if (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) { - this._zoomBoundLayers[L.stamp(layer)] = layer; - this._updateZoomLevels(); - } - }, - - _removeZoomLimit: function (layer) { - var id = L.stamp(layer); - - if (this._zoomBoundLayers[id]) { - delete this._zoomBoundLayers[id]; - this._updateZoomLevels(); - } - }, - - _updateZoomLevels: function () { - var minZoom = Infinity, - maxZoom = -Infinity, - oldZoomSpan = this._getZoomSpan(); - - for (var i in this._zoomBoundLayers) { - var options = this._zoomBoundLayers[i].options; - - minZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom); - maxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom); - } - - this._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom; - this._layersMinZoom = minZoom === Infinity ? undefined : minZoom; - - if (oldZoomSpan !== this._getZoomSpan()) { - this.fire('zoomlevelschange'); - } - } -}); - - -/* - * Mercator projection that takes into account that the Earth is not a perfect sphere. - * Less popular than spherical mercator; used by projections like EPSG:3395. - */ - -L.Projection.Mercator = { - R: 6378137, - R_MINOR: 6356752.314245179, - - bounds: L.bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]), - - project: function (latlng) { - var d = Math.PI / 180, - r = this.R, - y = latlng.lat * d, - tmp = this.R_MINOR / r, - e = Math.sqrt(1 - tmp * tmp), - con = e * Math.sin(y); - - var ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2); - y = -r * Math.log(Math.max(ts, 1E-10)); - - return new L.Point(latlng.lng * d * r, y); - }, - - unproject: function (point) { - var d = 180 / Math.PI, - r = this.R, - tmp = this.R_MINOR / r, - e = Math.sqrt(1 - tmp * tmp), - ts = Math.exp(-point.y / r), - phi = Math.PI / 2 - 2 * Math.atan(ts); - - for (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) { - con = e * Math.sin(phi); - con = Math.pow((1 - con) / (1 + con), e / 2); - dphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi; - phi += dphi; - } - - return new L.LatLng(phi * d, point.x * d / r); - } -}; - - -/* - * L.CRS.EPSG3857 (World Mercator) CRS implementation. - */ - -L.CRS.EPSG3395 = L.extend({}, L.CRS.Earth, { - code: 'EPSG:3395', - projection: L.Projection.Mercator, - - transformation: (function () { - var scale = 0.5 / (Math.PI * L.Projection.Mercator.R); - return new L.Transformation(scale, 0.5, -scale, 0.5); - }()) -}); - - -/* - * L.GridLayer is used as base class for grid-like layers like TileLayer. - */ - -L.GridLayer = L.Layer.extend({ - - options: { - pane: 'tilePane', - - tileSize: 256, - opacity: 1, - - updateWhenIdle: L.Browser.mobile, - updateInterval: 200, - - attribution: null, - zIndex: null, - bounds: null, - - minZoom: 0 - // maxZoom: - }, - - initialize: function (options) { - options = L.setOptions(this, options); - }, - - onAdd: function () { - this._initContainer(); - - this._levels = {}; - this._tiles = {}; - - this._resetView(); - this._update(); - }, - - beforeAdd: function (map) { - map._addZoomLimit(this); - }, - - onRemove: function (map) { - L.DomUtil.remove(this._container); - map._removeZoomLimit(this); - this._container = null; - this._tileZoom = null; - }, - - bringToFront: function () { - if (this._map) { - L.DomUtil.toFront(this._container); - this._setAutoZIndex(Math.max); - } - return this; - }, - - bringToBack: function () { - if (this._map) { - L.DomUtil.toBack(this._container); - this._setAutoZIndex(Math.min); - } - return this; - }, - - getAttribution: function () { - return this.options.attribution; - }, - - getContainer: function () { - return this._container; - }, - - setOpacity: function (opacity) { - this.options.opacity = opacity; - this._updateOpacity(); - return this; - }, - - setZIndex: function (zIndex) { - this.options.zIndex = zIndex; - this._updateZIndex(); - - return this; - }, - - isLoading: function () { - return this._loading; - }, - - redraw: function () { - if (this._map) { - this._removeAllTiles(); - this._update(); - } - return this; - }, - - getEvents: function () { - var events = { - viewreset: this._resetAll, - zoom: this._resetView, - moveend: this._onMoveEnd - }; - - if (!this.options.updateWhenIdle) { - // update tiles on move, but not more often than once per given interval - if (!this._onMove) { - this._onMove = L.Util.throttle(this._onMoveEnd, this.options.updateInterval, this); - } - - events.move = this._onMove; - } - - if (this._zoomAnimated) { - events.zoomanim = this._animateZoom; - } - - return events; - }, - - createTile: function () { - return document.createElement('div'); - }, - - getTileSize: function () { - var s = this.options.tileSize; - return s instanceof L.Point ? s : new L.Point(s, s); - }, - - _updateZIndex: function () { - if (this._container && this.options.zIndex !== undefined && this.options.zIndex !== null) { - this._container.style.zIndex = this.options.zIndex; - } - }, - - _setAutoZIndex: function (compare) { - // go through all other layers of the same pane, set zIndex to max + 1 (front) or min - 1 (back) - - var layers = this.getPane().children, - edgeZIndex = -compare(-Infinity, Infinity); // -Infinity for max, Infinity for min - - for (var i = 0, len = layers.length, zIndex; i < len; i++) { - - zIndex = layers[i].style.zIndex; - - if (layers[i] !== this._container && zIndex) { - edgeZIndex = compare(edgeZIndex, +zIndex); - } - } - - if (isFinite(edgeZIndex)) { - this.options.zIndex = edgeZIndex + compare(-1, 1); - this._updateZIndex(); - } - }, - - _updateOpacity: function () { - if (!this._map) { return; } - var opacity = this.options.opacity; - - // IE doesn't inherit filter opacity properly, so we're forced to set it on tiles - if (!L.Browser.ielt9 && !this._map._fadeAnimated) { - L.DomUtil.setOpacity(this._container, opacity); - return; - } - - var now = +new Date(), - nextFrame = false, - willPrune = false; - - for (var key in this._tiles) { - var tile = this._tiles[key]; - if (!tile.current || !tile.loaded) { continue; } - - var fade = Math.min(1, (now - tile.loaded) / 200); - if (fade < 1) { - L.DomUtil.setOpacity(tile.el, opacity * fade); - nextFrame = true; - } else { - L.DomUtil.setOpacity(tile.el, opacity); - if (tile.active) { willPrune = true; } - tile.active = true; - } - } - - if (willPrune) { this._pruneTiles(); } - - if (nextFrame) { - L.Util.cancelAnimFrame(this._fadeFrame); - this._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this); - } - }, - - _initContainer: function () { - if (this._container) { return; } - - this._container = L.DomUtil.create('div', 'leaflet-layer'); - this._updateZIndex(); - - if (this.options.opacity < 1) { - this._updateOpacity(); - } - - this.getPane().appendChild(this._container); - }, - - _updateLevels: function () { - - var zoom = this._tileZoom, - maxZoom = this.options.maxZoom; - - for (var z in this._levels) { - if (this._levels[z].el.children.length || z === zoom) { - this._levels[z].el.style.zIndex = maxZoom - Math.abs(zoom - z); - } else { - L.DomUtil.remove(this._levels[z].el); - delete this._levels[z]; - } - } - - var level = this._levels[zoom], - map = this._map; - - if (!level) { - level = this._levels[zoom] = {}; - - level.el = L.DomUtil.create('div', 'leaflet-tile-container leaflet-zoom-animated', this._container); - level.el.style.zIndex = maxZoom; - - level.origin = map.project(map.unproject(map.getPixelOrigin()), zoom).round(); - level.zoom = zoom; - - this._setZoomTransform(level, map.getCenter(), map.getZoom()); - - // force the browser to consider the newly added element for transition - L.Util.falseFn(level.el.offsetWidth); - } - - this._level = level; - - return level; - }, - - _pruneTiles: function () { - var key, tile; - - var zoom = this._map.getZoom(); - if (zoom > this.options.maxZoom || - zoom < this.options.minZoom) { return this._removeAllTiles(); } - - for (key in this._tiles) { - tile = this._tiles[key]; - tile.retain = tile.current; - } - - for (key in this._tiles) { - tile = this._tiles[key]; - if (tile.current && !tile.active) { - var coords = tile.coords; - if (!this._retainParent(coords.x, coords.y, coords.z, coords.z - 5)) { - this._retainChildren(coords.x, coords.y, coords.z, coords.z + 2); - } - } - } - - for (key in this._tiles) { - if (!this._tiles[key].retain) { - this._removeTile(key); - } - } - }, - - _removeAllTiles: function () { - for (var key in this._tiles) { - this._removeTile(key); - } - }, - - _resetAll: function () { - for (var z in this._levels) { - L.DomUtil.remove(this._levels[z].el); - delete this._levels[z]; - } - this._removeAllTiles(); - - this._tileZoom = null; - this._resetView(); - }, - - _retainParent: function (x, y, z, minZoom) { - var x2 = Math.floor(x / 2), - y2 = Math.floor(y / 2), - z2 = z - 1; - - var key = x2 + ':' + y2 + ':' + z2, - tile = this._tiles[key]; - - if (tile && tile.active) { - tile.retain = true; - return true; - - } else if (tile && tile.loaded) { - tile.retain = true; - } - - if (z2 > minZoom) { - return this._retainParent(x2, y2, z2, minZoom); - } - - return false; - }, - - _retainChildren: function (x, y, z, maxZoom) { - - for (var i = 2 * x; i < 2 * x + 2; i++) { - for (var j = 2 * y; j < 2 * y + 2; j++) { - - var key = i + ':' + j + ':' + (z + 1), - tile = this._tiles[key]; - - if (tile && tile.active) { - tile.retain = true; - continue; - - } else if (tile && tile.loaded) { - tile.retain = true; - } - - if (z + 1 < maxZoom) { - this._retainChildren(i, j, z + 1, maxZoom); - } - } - } - }, - - _resetView: function (e) { - var pinch = e && e.pinch; - this._setView(this._map.getCenter(), this._map.getZoom(), pinch, pinch); - }, - - _animateZoom: function (e) { - this._setView(e.center, e.zoom, true, e.noUpdate); - }, - - _setView: function (center, zoom, noPrune, noUpdate) { - var tileZoom = Math.round(zoom), - tileZoomChanged = this._tileZoom !== tileZoom; - - if (!noUpdate && tileZoomChanged) { - - if (this._abortLoading) { - this._abortLoading(); - } - - this._tileZoom = tileZoom; - this._updateLevels(); - this._resetGrid(); - - if (!L.Browser.mobileWebkit) { - this._update(center, tileZoom); - } - - if (!noPrune) { - this._pruneTiles(); - } - } - - this._setZoomTransforms(center, zoom); - }, - - _setZoomTransforms: function (center, zoom) { - for (var i in this._levels) { - this._setZoomTransform(this._levels[i], center, zoom); - } - }, - - _setZoomTransform: function (level, center, zoom) { - var scale = this._map.getZoomScale(zoom, level.zoom), - translate = level.origin.multiplyBy(scale) - .subtract(this._map._getNewPixelOrigin(center, zoom)).round(); - - if (L.Browser.any3d) { - L.DomUtil.setTransform(level.el, translate, scale); - } else { - L.DomUtil.setPosition(level.el, translate); - } - }, - - _resetGrid: function () { - var map = this._map, - crs = map.options.crs, - tileSize = this._tileSize = this.getTileSize(), - tileZoom = this._tileZoom; - - var bounds = this._map.getPixelWorldBounds(this._tileZoom); - if (bounds) { - this._globalTileRange = this._pxBoundsToTileRange(bounds); - } - - this._wrapX = crs.wrapLng && [ - Math.floor(map.project([0, crs.wrapLng[0]], tileZoom).x / tileSize.x), - Math.ceil(map.project([0, crs.wrapLng[1]], tileZoom).x / tileSize.y) - ]; - this._wrapY = crs.wrapLat && [ - Math.floor(map.project([crs.wrapLat[0], 0], tileZoom).y / tileSize.x), - Math.ceil(map.project([crs.wrapLat[1], 0], tileZoom).y / tileSize.y) - ]; - }, - - _onMoveEnd: function () { - if (!this._map) { return; } - - this._update(); - this._pruneTiles(); - }, - - _getTiledPixelBounds: function (center, zoom, tileZoom) { - var map = this._map; - - var scale = map.getZoomScale(zoom, tileZoom), - pixelCenter = map.project(center, tileZoom).floor(), - halfSize = map.getSize().divideBy(scale * 2); - - return new L.Bounds(pixelCenter.subtract(halfSize), pixelCenter.add(halfSize)); - }, - - _update: function (center, zoom) { - - var map = this._map; - if (!map) { return; } - - if (center === undefined) { center = map.getCenter(); } - if (zoom === undefined) { zoom = map.getZoom(); } - var tileZoom = Math.round(zoom); - - if (tileZoom > this.options.maxZoom || - tileZoom < this.options.minZoom) { return; } - - var pixelBounds = this._getTiledPixelBounds(center, zoom, tileZoom); - - var tileRange = this._pxBoundsToTileRange(pixelBounds), - tileCenter = tileRange.getCenter(), - queue = []; - - for (var key in this._tiles) { - this._tiles[key].current = false; - } - - // create a queue of coordinates to load tiles from - for (var j = tileRange.min.y; j <= tileRange.max.y; j++) { - for (var i = tileRange.min.x; i <= tileRange.max.x; i++) { - var coords = new L.Point(i, j); - coords.z = tileZoom; - - if (!this._isValidTile(coords)) { continue; } - - var tile = this._tiles[this._tileCoordsToKey(coords)]; - if (tile) { - tile.current = true; - } else { - queue.push(coords); - } - } - } - - // sort tile queue to load tiles in order of their distance to center - queue.sort(function (a, b) { - return a.distanceTo(tileCenter) - b.distanceTo(tileCenter); - }); - - if (queue.length !== 0) { - // if its the first batch of tiles to load - if (!this._loading) { - this._loading = true; - this.fire('loading'); - } - - // create DOM fragment to append tiles in one batch - var fragment = document.createDocumentFragment(); - - for (i = 0; i < queue.length; i++) { - this._addTile(queue[i], fragment); - } - - this._level.el.appendChild(fragment); - } - }, - - _isValidTile: function (coords) { - var crs = this._map.options.crs; - - if (!crs.infinite) { - // don't load tile if it's out of bounds and not wrapped - var bounds = this._globalTileRange; - if ((!crs.wrapLng && (coords.x < bounds.min.x || coords.x > bounds.max.x)) || - (!crs.wrapLat && (coords.y < bounds.min.y || coords.y > bounds.max.y))) { return false; } - } - - if (!this.options.bounds) { return true; } - - // don't load tile if it doesn't intersect the bounds in options - var tileBounds = this._tileCoordsToBounds(coords); - return L.latLngBounds(this.options.bounds).overlaps(tileBounds); - }, - - _keyToBounds: function (key) { - return this._tileCoordsToBounds(this._keyToTileCoords(key)); - }, - - // converts tile coordinates to its geographical bounds - _tileCoordsToBounds: function (coords) { - - var map = this._map, - tileSize = this.getTileSize(), - - nwPoint = coords.scaleBy(tileSize), - sePoint = nwPoint.add(tileSize), - - nw = map.wrapLatLng(map.unproject(nwPoint, coords.z)), - se = map.wrapLatLng(map.unproject(sePoint, coords.z)); - - return new L.LatLngBounds(nw, se); - }, - - // converts tile coordinates to key for the tile cache - _tileCoordsToKey: function (coords) { - return coords.x + ':' + coords.y + ':' + coords.z; - }, - - // converts tile cache key to coordinates - _keyToTileCoords: function (key) { - var k = key.split(':'), - coords = new L.Point(+k[0], +k[1]); - coords.z = +k[2]; - return coords; - }, - - _removeTile: function (key) { - var tile = this._tiles[key]; - if (!tile) { return; } - - L.DomUtil.remove(tile.el); - - delete this._tiles[key]; - - this.fire('tileunload', { - tile: tile.el, - coords: this._keyToTileCoords(key) - }); - }, - - _initTile: function (tile) { - L.DomUtil.addClass(tile, 'leaflet-tile'); - - var tileSize = this.getTileSize(); - tile.style.width = tileSize.x + 'px'; - tile.style.height = tileSize.y + 'px'; - - tile.onselectstart = L.Util.falseFn; - tile.onmousemove = L.Util.falseFn; - - // update opacity on tiles in IE7-8 because of filter inheritance problems - if (L.Browser.ielt9 && this.options.opacity < 1) { - L.DomUtil.setOpacity(tile, this.options.opacity); - } - - // without this hack, tiles disappear after zoom on Chrome for Android - // https://github.com/Leaflet/Leaflet/issues/2078 - if (L.Browser.android && !L.Browser.android23) { - tile.style.WebkitBackfaceVisibility = 'hidden'; - } - }, - - _addTile: function (coords, container) { - var tilePos = this._getTilePos(coords), - key = this._tileCoordsToKey(coords); - - var tile = this.createTile(this._wrapCoords(coords), L.bind(this._tileReady, this, coords)); - - this._initTile(tile); - - // if createTile is defined with a second argument ("done" callback), - // we know that tile is async and will be ready later; otherwise - if (this.createTile.length < 2) { - // mark tile as ready, but delay one frame for opacity animation to happen - setTimeout(L.bind(this._tileReady, this, coords, null, tile), 0); - } - - // we prefer top/left over translate3d so that we don't create a HW-accelerated layer from each tile - // which is slow, and it also fixes gaps between tiles in Safari - L.DomUtil.setPosition(tile, tilePos); - - // save tile in cache - this._tiles[key] = { - el: tile, - coords: coords, - current: true - }; - - container.appendChild(tile); - this.fire('tileloadstart', { - tile: tile, - coords: coords - }); - }, - - _tileReady: function (coords, err, tile) { - if (!this._map) { return; } - - if (err) { - this.fire('tileerror', { - error: err, - tile: tile, - coords: coords - }); - } - - var key = this._tileCoordsToKey(coords); - - tile = this._tiles[key]; - if (!tile) { return; } - - tile.loaded = +new Date(); - if (this._map._fadeAnimated) { - L.DomUtil.setOpacity(tile.el, 0); - L.Util.cancelAnimFrame(this._fadeFrame); - this._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this); - } else { - tile.active = true; - this._pruneTiles(); - } - - L.DomUtil.addClass(tile.el, 'leaflet-tile-loaded'); - - this.fire('tileload', { - tile: tile.el, - coords: coords - }); - - if (this._noTilesToLoad()) { - this._loading = false; - this.fire('load'); - } - }, - - _getTilePos: function (coords) { - return coords.scaleBy(this.getTileSize()).subtract(this._level.origin); - }, - - _wrapCoords: function (coords) { - var newCoords = new L.Point( - this._wrapX ? L.Util.wrapNum(coords.x, this._wrapX) : coords.x, - this._wrapY ? L.Util.wrapNum(coords.y, this._wrapY) : coords.y); - newCoords.z = coords.z; - return newCoords; - }, - - _pxBoundsToTileRange: function (bounds) { - var tileSize = this.getTileSize(); - return new L.Bounds( - bounds.min.unscaleBy(tileSize).floor(), - bounds.max.unscaleBy(tileSize).ceil().subtract([1, 1])); - }, - - _noTilesToLoad: function () { - for (var key in this._tiles) { - if (!this._tiles[key].loaded) { return false; } - } - return true; - } -}); - -L.gridLayer = function (options) { - return new L.GridLayer(options); -}; - - -/* - * L.TileLayer is used for standard xyz-numbered tile layers. - */ - -L.TileLayer = L.GridLayer.extend({ - - options: { - maxZoom: 18, - - subdomains: 'abc', - errorTileUrl: '', - zoomOffset: 0, - - maxNativeZoom: null, // Number - tms: false, - zoomReverse: false, - detectRetina: false, - crossOrigin: false - }, - - initialize: function (url, options) { - - this._url = url; - - options = L.setOptions(this, options); - - // detecting retina displays, adjusting tileSize and zoom levels - if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) { - - options.tileSize = Math.floor(options.tileSize / 2); - options.zoomOffset++; - - options.minZoom = Math.max(0, options.minZoom); - options.maxZoom--; - } - - if (typeof options.subdomains === 'string') { - options.subdomains = options.subdomains.split(''); - } - - // for https://github.com/Leaflet/Leaflet/issues/137 - if (!L.Browser.android) { - this.on('tileunload', this._onTileRemove); - } - }, - - setUrl: function (url, noRedraw) { - this._url = url; - - if (!noRedraw) { - this.redraw(); - } - return this; - }, - - createTile: function (coords, done) { - var tile = document.createElement('img'); - - tile.onload = L.bind(this._tileOnLoad, this, done, tile); - tile.onerror = L.bind(this._tileOnError, this, done, tile); - - if (this.options.crossOrigin) { - tile.crossOrigin = ''; - } - - /* - Alt tag is set to empty string to keep screen readers from reading URL and for compliance reasons - http://www.w3.org/TR/WCAG20-TECHS/H67 - */ - tile.alt = ''; - - tile.src = this.getTileUrl(coords); - - return tile; - }, - - getTileUrl: function (coords) { - return L.Util.template(this._url, L.extend({ - r: this.options.detectRetina && L.Browser.retina && this.options.maxZoom > 0 ? '@2x' : '', - s: this._getSubdomain(coords), - x: coords.x, - y: this.options.tms ? this._globalTileRange.max.y - coords.y : coords.y, - z: this._getZoomForUrl() - }, this.options)); - }, - - _tileOnLoad: function (done, tile) { - // For https://github.com/Leaflet/Leaflet/issues/3332 - if (L.Browser.ielt9) { - setTimeout(L.bind(done, this, null, tile), 0); - } else { - done(null, tile); - } - }, - - _tileOnError: function (done, tile, e) { - var errorUrl = this.options.errorTileUrl; - if (errorUrl) { - tile.src = errorUrl; - } - done(e, tile); - }, - - getTileSize: function () { - var map = this._map, - tileSize = L.GridLayer.prototype.getTileSize.call(this), - zoom = this._tileZoom + this.options.zoomOffset, - zoomN = this.options.maxNativeZoom; - - // increase tile size when overscaling - return zoomN !== null && zoom > zoomN ? - tileSize.divideBy(map.getZoomScale(zoomN, zoom)).round() : - tileSize; - }, - - _onTileRemove: function (e) { - e.tile.onload = null; - }, - - _getZoomForUrl: function () { - - var options = this.options, - zoom = this._tileZoom; - - if (options.zoomReverse) { - zoom = options.maxZoom - zoom; - } - - zoom += options.zoomOffset; - - return options.maxNativeZoom ? Math.min(zoom, options.maxNativeZoom) : zoom; - }, - - _getSubdomain: function (tilePoint) { - var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length; - return this.options.subdomains[index]; - }, - - // stops loading all tiles in the background layer - _abortLoading: function () { - var i, tile; - for (i in this._tiles) { - tile = this._tiles[i].el; - - tile.onload = L.Util.falseFn; - tile.onerror = L.Util.falseFn; - - if (!tile.complete) { - tile.src = L.Util.emptyImageUrl; - L.DomUtil.remove(tile); - } - } - } -}); - -L.tileLayer = function (url, options) { - return new L.TileLayer(url, options); -}; - - -/* - * L.TileLayer.WMS is used for WMS tile layers. - */ - -L.TileLayer.WMS = L.TileLayer.extend({ - - defaultWmsParams: { - service: 'WMS', - request: 'GetMap', - version: '1.1.1', - layers: '', - styles: '', - format: 'image/jpeg', - transparent: false - }, - - options: { - crs: null, - uppercase: false - }, - - initialize: function (url, options) { - - this._url = url; - - var wmsParams = L.extend({}, this.defaultWmsParams); - - // all keys that are not TileLayer options go to WMS params - for (var i in options) { - if (!(i in this.options)) { - wmsParams[i] = options[i]; - } - } - - options = L.setOptions(this, options); - - wmsParams.width = wmsParams.height = options.tileSize * (options.detectRetina && L.Browser.retina ? 2 : 1); - - this.wmsParams = wmsParams; - }, - - onAdd: function (map) { - - this._crs = this.options.crs || map.options.crs; - this._wmsVersion = parseFloat(this.wmsParams.version); - - var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs'; - this.wmsParams[projectionKey] = this._crs.code; - - L.TileLayer.prototype.onAdd.call(this, map); - }, - - getTileUrl: function (coords) { - - var tileBounds = this._tileCoordsToBounds(coords), - nw = this._crs.project(tileBounds.getNorthWest()), - se = this._crs.project(tileBounds.getSouthEast()), - - bbox = (this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ? - [se.y, nw.x, nw.y, se.x] : - [nw.x, se.y, se.x, nw.y]).join(','), - - url = L.TileLayer.prototype.getTileUrl.call(this, coords); - - return url + - L.Util.getParamString(this.wmsParams, url, this.options.uppercase) + - (this.options.uppercase ? '&BBOX=' : '&bbox=') + bbox; - }, - - setParams: function (params, noRedraw) { - - L.extend(this.wmsParams, params); - - if (!noRedraw) { - this.redraw(); - } - - return this; - } -}); - -L.tileLayer.wms = function (url, options) { - return new L.TileLayer.WMS(url, options); -}; - - -/* - * L.ImageOverlay is used to overlay images over the map (to specific geographical bounds). - */ - -L.ImageOverlay = L.Layer.extend({ - - options: { - opacity: 1, - alt: '', - interactive: false - - /* - crossOrigin: , - */ - }, - - initialize: function (url, bounds, options) { // (String, LatLngBounds, Object) - this._url = url; - this._bounds = L.latLngBounds(bounds); - - L.setOptions(this, options); - }, - - onAdd: function () { - if (!this._image) { - this._initImage(); - - if (this.options.opacity < 1) { - this._updateOpacity(); - } - } - - if (this.options.interactive) { - L.DomUtil.addClass(this._image, 'leaflet-interactive'); - this.addInteractiveTarget(this._image); - } - - this.getPane().appendChild(this._image); - this._reset(); - }, - - onRemove: function () { - L.DomUtil.remove(this._image); - if (this.options.interactive) { - this.removeInteractiveTarget(this._image); - } - }, - - setOpacity: function (opacity) { - this.options.opacity = opacity; - - if (this._image) { - this._updateOpacity(); - } - return this; - }, - - setStyle: function (styleOpts) { - if (styleOpts.opacity) { - this.setOpacity(styleOpts.opacity); - } - return this; - }, - - bringToFront: function () { - if (this._map) { - L.DomUtil.toFront(this._image); - } - return this; - }, - - bringToBack: function () { - if (this._map) { - L.DomUtil.toBack(this._image); - } - return this; - }, - - setUrl: function (url) { - this._url = url; - - if (this._image) { - this._image.src = url; - } - return this; - }, - - getAttribution: function () { - return this.options.attribution; - }, - - getEvents: function () { - var events = { - zoom: this._reset, - viewreset: this._reset - }; - - if (this._zoomAnimated) { - events.zoomanim = this._animateZoom; - } - - return events; - }, - - getBounds: function () { - return this._bounds; - }, - - getElement: function () { - return this._image; - }, - - _initImage: function () { - var img = this._image = L.DomUtil.create('img', - 'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : '')); - - img.onselectstart = L.Util.falseFn; - img.onmousemove = L.Util.falseFn; - - img.onload = L.bind(this.fire, this, 'load'); - - if (this.options.crossOrigin) { - img.crossOrigin = ''; - } - - img.src = this._url; - img.alt = this.options.alt; - }, - - _animateZoom: function (e) { - var scale = this._map.getZoomScale(e.zoom), - offset = this._map._latLngToNewLayerPoint(this._bounds.getNorthWest(), e.zoom, e.center); - - L.DomUtil.setTransform(this._image, offset, scale); - }, - - _reset: function () { - var image = this._image, - bounds = new L.Bounds( - this._map.latLngToLayerPoint(this._bounds.getNorthWest()), - this._map.latLngToLayerPoint(this._bounds.getSouthEast())), - size = bounds.getSize(); - - L.DomUtil.setPosition(image, bounds.min); - - image.style.width = size.x + 'px'; - image.style.height = size.y + 'px'; - }, - - _updateOpacity: function () { - L.DomUtil.setOpacity(this._image, this.options.opacity); - } -}); - -L.imageOverlay = function (url, bounds, options) { - return new L.ImageOverlay(url, bounds, options); -}; - - -/* - * L.Icon is an image-based icon class that you can use with L.Marker for custom markers. - */ - -L.Icon = L.Class.extend({ - /* - options: { - iconUrl: (String) (required) - iconRetinaUrl: (String) (optional, used for retina devices if detected) - iconSize: (Point) (can be set through CSS) - iconAnchor: (Point) (centered by default, can be set in CSS with negative margins) - popupAnchor: (Point) (if not specified, popup opens in the anchor point) - shadowUrl: (String) (no shadow by default) - shadowRetinaUrl: (String) (optional, used for retina devices if detected) - shadowSize: (Point) - shadowAnchor: (Point) - className: (String) - }, - */ - - initialize: function (options) { - L.setOptions(this, options); - }, - - createIcon: function (oldIcon) { - return this._createIcon('icon', oldIcon); - }, - - createShadow: function (oldIcon) { - return this._createIcon('shadow', oldIcon); - }, - - _createIcon: function (name, oldIcon) { - var src = this._getIconUrl(name); - - if (!src) { - if (name === 'icon') { - throw new Error('iconUrl not set in Icon options (see the docs).'); - } - return null; - } - - var img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null); - this._setIconStyles(img, name); - - return img; - }, - - _setIconStyles: function (img, name) { - var options = this.options, - size = L.point(options[name + 'Size']), - anchor = L.point(name === 'shadow' && options.shadowAnchor || options.iconAnchor || - size && size.divideBy(2, true)); - - img.className = 'leaflet-marker-' + name + ' ' + (options.className || ''); - - if (anchor) { - img.style.marginLeft = (-anchor.x) + 'px'; - img.style.marginTop = (-anchor.y) + 'px'; - } - - if (size) { - img.style.width = size.x + 'px'; - img.style.height = size.y + 'px'; - } - }, - - _createImg: function (src, el) { - el = el || document.createElement('img'); - el.src = src; - return el; - }, - - _getIconUrl: function (name) { - return L.Browser.retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url']; - } -}); - -L.icon = function (options) { - return new L.Icon(options); -}; - - -/* - * L.Icon.Default is the blue marker icon used by default in Leaflet. - */ - -L.Icon.Default = L.Icon.extend({ - - options: { - iconSize: [25, 41], - iconAnchor: [12, 41], - popupAnchor: [1, -34], - shadowSize: [41, 41] - }, - - _getIconUrl: function (name) { - var key = name + 'Url'; - - if (this.options[key]) { - return this.options[key]; - } - - var path = L.Icon.Default.imagePath; - - if (!path) { - throw new Error('Couldn\'t autodetect L.Icon.Default.imagePath, set it manually.'); - } - - return path + '/marker-' + name + (L.Browser.retina && name === 'icon' ? '-2x' : '') + '.png'; - } -}); - -L.Icon.Default.imagePath = (function () { - var scripts = document.getElementsByTagName('script'), - leafletRe = /[\/^]leaflet[\-\._]?([\w\-\._]*)\.js\??/; - - var i, len, src, path; - - for (i = 0, len = scripts.length; i < len; i++) { - src = scripts[i].src; - - if (src.match(leafletRe)) { - path = src.split(leafletRe)[0]; - return (path ? path + '/' : '') + 'images'; - } - } -}()); - - -/* - * L.Marker is used to display clickable/draggable icons on the map. - */ - -L.Marker = L.Layer.extend({ - - options: { - pane: 'markerPane', - nonBubblingEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu'], - - icon: new L.Icon.Default(), - // title: '', - // alt: '', - interactive: true, - // draggable: false, - keyboard: true, - zIndexOffset: 0, - opacity: 1, - // riseOnHover: false, - riseOffset: 250 - }, - - initialize: function (latlng, options) { - L.setOptions(this, options); - this._latlng = L.latLng(latlng); - }, - - onAdd: function (map) { - this._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation; - - this._initIcon(); - this.update(); - }, - - onRemove: function () { - if (this.dragging && this.dragging.enabled()) { - this.options.draggable = true; - this.dragging.removeHooks(); - } - - this._removeIcon(); - this._removeShadow(); - }, - - getEvents: function () { - var events = { - zoom: this.update, - viewreset: this.update - }; - - if (this._zoomAnimated) { - events.zoomanim = this._animateZoom; - } - - return events; - }, - - getLatLng: function () { - return this._latlng; - }, - - setLatLng: function (latlng) { - var oldLatLng = this._latlng; - this._latlng = L.latLng(latlng); - this.update(); - return this.fire('move', {oldLatLng: oldLatLng, latlng: this._latlng}); - }, - - setZIndexOffset: function (offset) { - this.options.zIndexOffset = offset; - return this.update(); - }, - - setIcon: function (icon) { - - this.options.icon = icon; - - if (this._map) { - this._initIcon(); - this.update(); - } - - if (this._popup) { - this.bindPopup(this._popup, this._popup.options); - } - - return this; - }, - - getElement: function () { - return this._icon; - }, - - update: function () { - - if (this._icon) { - var pos = this._map.latLngToLayerPoint(this._latlng).round(); - this._setPos(pos); - } - - return this; - }, - - _initIcon: function () { - var options = this.options, - classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide'); - - var icon = options.icon.createIcon(this._icon), - addIcon = false; - - // if we're not reusing the icon, remove the old one and init new one - if (icon !== this._icon) { - if (this._icon) { - this._removeIcon(); - } - addIcon = true; - - if (options.title) { - icon.title = options.title; - } - if (options.alt) { - icon.alt = options.alt; - } - } - - L.DomUtil.addClass(icon, classToAdd); - - if (options.keyboard) { - icon.tabIndex = '0'; - } - - this._icon = icon; - this._initInteraction(); - - if (options.riseOnHover) { - this.on({ - mouseover: this._bringToFront, - mouseout: this._resetZIndex - }); - } - - var newShadow = options.icon.createShadow(this._shadow), - addShadow = false; - - if (newShadow !== this._shadow) { - this._removeShadow(); - addShadow = true; - } - - if (newShadow) { - L.DomUtil.addClass(newShadow, classToAdd); - } - this._shadow = newShadow; - - - if (options.opacity < 1) { - this._updateOpacity(); - } - - - if (addIcon) { - this.getPane().appendChild(this._icon); - } - if (newShadow && addShadow) { - this.getPane('shadowPane').appendChild(this._shadow); - } - }, - - _removeIcon: function () { - if (this.options.riseOnHover) { - this.off({ - mouseover: this._bringToFront, - mouseout: this._resetZIndex - }); - } - - L.DomUtil.remove(this._icon); - this.removeInteractiveTarget(this._icon); - - this._icon = null; - }, - - _removeShadow: function () { - if (this._shadow) { - L.DomUtil.remove(this._shadow); - } - this._shadow = null; - }, - - _setPos: function (pos) { - L.DomUtil.setPosition(this._icon, pos); - - if (this._shadow) { - L.DomUtil.setPosition(this._shadow, pos); - } - - this._zIndex = pos.y + this.options.zIndexOffset; - - this._resetZIndex(); - }, - - _updateZIndex: function (offset) { - this._icon.style.zIndex = this._zIndex + offset; - }, - - _animateZoom: function (opt) { - var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round(); - - this._setPos(pos); - }, - - _initInteraction: function () { - - if (!this.options.interactive) { return; } - - L.DomUtil.addClass(this._icon, 'leaflet-interactive'); - - this.addInteractiveTarget(this._icon); - - if (L.Handler.MarkerDrag) { - var draggable = this.options.draggable; - if (this.dragging) { - draggable = this.dragging.enabled(); - this.dragging.disable(); - } - - this.dragging = new L.Handler.MarkerDrag(this); - - if (draggable) { - this.dragging.enable(); - } - } - }, - - setOpacity: function (opacity) { - this.options.opacity = opacity; - if (this._map) { - this._updateOpacity(); - } - - return this; - }, - - _updateOpacity: function () { - var opacity = this.options.opacity; - - L.DomUtil.setOpacity(this._icon, opacity); - - if (this._shadow) { - L.DomUtil.setOpacity(this._shadow, opacity); - } - }, - - _bringToFront: function () { - this._updateZIndex(this.options.riseOffset); - }, - - _resetZIndex: function () { - this._updateZIndex(0); - } -}); - -L.marker = function (latlng, options) { - return new L.Marker(latlng, options); -}; - - -/* - * L.DivIcon is a lightweight HTML-based icon class (as opposed to the image-based L.Icon) - * to use with L.Marker. - */ - -L.DivIcon = L.Icon.extend({ - options: { - iconSize: [12, 12], // also can be set through CSS - /* - iconAnchor: (Point) - popupAnchor: (Point) - html: (String) - bgPos: (Point) - */ - className: 'leaflet-div-icon', - html: false - }, - - createIcon: function (oldIcon) { - var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'), - options = this.options; - - div.innerHTML = options.html !== false ? options.html : ''; - - if (options.bgPos) { - div.style.backgroundPosition = (-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px'; - } - this._setIconStyles(div, 'icon'); - - return div; - }, - - createShadow: function () { - return null; - } -}); - -L.divIcon = function (options) { - return new L.DivIcon(options); -}; - - -/* - * L.Popup is used for displaying popups on the map. - */ - -L.Map.mergeOptions({ - closePopupOnClick: true -}); - -L.Popup = L.Layer.extend({ - - options: { - pane: 'popupPane', - - minWidth: 50, - maxWidth: 300, - // maxHeight: , - offset: [0, 7], - - autoPan: true, - autoPanPadding: [5, 5], - // autoPanPaddingTopLeft: , - // autoPanPaddingBottomRight: , - - closeButton: true, - autoClose: true, - // keepInView: false, - // className: '', - zoomAnimation: true - }, - - initialize: function (options, source) { - L.setOptions(this, options); - - this._source = source; - }, - - onAdd: function (map) { - this._zoomAnimated = this._zoomAnimated && this.options.zoomAnimation; - - if (!this._container) { - this._initLayout(); - } - - if (map._fadeAnimated) { - L.DomUtil.setOpacity(this._container, 0); - } - - clearTimeout(this._removeTimeout); - this.getPane().appendChild(this._container); - this.update(); - - if (map._fadeAnimated) { - L.DomUtil.setOpacity(this._container, 1); - } - - map.fire('popupopen', {popup: this}); - - if (this._source) { - this._source.fire('popupopen', {popup: this}, true); - } - }, - - openOn: function (map) { - map.openPopup(this); - return this; - }, - - onRemove: function (map) { - if (map._fadeAnimated) { - L.DomUtil.setOpacity(this._container, 0); - this._removeTimeout = setTimeout(L.bind(L.DomUtil.remove, L.DomUtil, this._container), 200); - } else { - L.DomUtil.remove(this._container); - } - - map.fire('popupclose', {popup: this}); - - if (this._source) { - this._source.fire('popupclose', {popup: this}, true); - } - }, - - getLatLng: function () { - return this._latlng; - }, - - setLatLng: function (latlng) { - this._latlng = L.latLng(latlng); - if (this._map) { - this._updatePosition(); - this._adjustPan(); - } - return this; - }, - - getContent: function () { - return this._content; - }, - - setContent: function (content) { - this._content = content; - this.update(); - return this; - }, - - getElement: function () { - return this._container; - }, - - update: function () { - if (!this._map) { return; } - - this._container.style.visibility = 'hidden'; - - this._updateContent(); - this._updateLayout(); - this._updatePosition(); - - this._container.style.visibility = ''; - - this._adjustPan(); - }, - - getEvents: function () { - var events = { - zoom: this._updatePosition, - viewreset: this._updatePosition - }; - - if (this._zoomAnimated) { - events.zoomanim = this._animateZoom; - } - if ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) { - events.preclick = this._close; - } - if (this.options.keepInView) { - events.moveend = this._adjustPan; - } - return events; - }, - - isOpen: function () { - return !!this._map && this._map.hasLayer(this); - }, - - _close: function () { - if (this._map) { - this._map.closePopup(this); - } - }, - - _initLayout: function () { - var prefix = 'leaflet-popup', - container = this._container = L.DomUtil.create('div', - prefix + ' ' + (this.options.className || '') + - ' leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide')); - - if (this.options.closeButton) { - var closeButton = this._closeButton = L.DomUtil.create('a', prefix + '-close-button', container); - closeButton.href = '#close'; - closeButton.innerHTML = '×'; - - L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this); - } - - var wrapper = this._wrapper = L.DomUtil.create('div', prefix + '-content-wrapper', container); - this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper); - - L.DomEvent - .disableClickPropagation(wrapper) - .disableScrollPropagation(this._contentNode) - .on(wrapper, 'contextmenu', L.DomEvent.stopPropagation); - - this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container); - this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer); - }, - - _updateContent: function () { - if (!this._content) { return; } - - var node = this._contentNode; - var content = (typeof this._content === 'function') ? this._content(this._source || this) : this._content; - - if (typeof content === 'string') { - node.innerHTML = content; - } else { - while (node.hasChildNodes()) { - node.removeChild(node.firstChild); - } - node.appendChild(content); - } - this.fire('contentupdate'); - }, - - _updateLayout: function () { - var container = this._contentNode, - style = container.style; - - style.width = ''; - style.whiteSpace = 'nowrap'; - - var width = container.offsetWidth; - width = Math.min(width, this.options.maxWidth); - width = Math.max(width, this.options.minWidth); - - style.width = (width + 1) + 'px'; - style.whiteSpace = ''; - - style.height = ''; - - var height = container.offsetHeight, - maxHeight = this.options.maxHeight, - scrolledClass = 'leaflet-popup-scrolled'; - - if (maxHeight && height > maxHeight) { - style.height = maxHeight + 'px'; - L.DomUtil.addClass(container, scrolledClass); - } else { - L.DomUtil.removeClass(container, scrolledClass); - } - - this._containerWidth = this._container.offsetWidth; - }, - - _updatePosition: function () { - if (!this._map) { return; } - - var pos = this._map.latLngToLayerPoint(this._latlng), - offset = L.point(this.options.offset); - - if (this._zoomAnimated) { - L.DomUtil.setPosition(this._container, pos); - } else { - offset = offset.add(pos); - } - - var bottom = this._containerBottom = -offset.y, - left = this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x; - - // bottom position the popup in case the height of the popup changes (images loading etc) - this._container.style.bottom = bottom + 'px'; - this._container.style.left = left + 'px'; - }, - - _animateZoom: function (e) { - var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center); - L.DomUtil.setPosition(this._container, pos); - }, - - _adjustPan: function () { - if (!this.options.autoPan) { return; } - - var map = this._map, - containerHeight = this._container.offsetHeight, - containerWidth = this._containerWidth, - layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom); - - if (this._zoomAnimated) { - layerPos._add(L.DomUtil.getPosition(this._container)); - } - - var containerPos = map.layerPointToContainerPoint(layerPos), - padding = L.point(this.options.autoPanPadding), - paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding), - paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding), - size = map.getSize(), - dx = 0, - dy = 0; - - if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right - dx = containerPos.x + containerWidth - size.x + paddingBR.x; - } - if (containerPos.x - dx - paddingTL.x < 0) { // left - dx = containerPos.x - paddingTL.x; - } - if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom - dy = containerPos.y + containerHeight - size.y + paddingBR.y; - } - if (containerPos.y - dy - paddingTL.y < 0) { // top - dy = containerPos.y - paddingTL.y; - } - - if (dx || dy) { - map - .fire('autopanstart') - .panBy([dx, dy]); - } - }, - - _onCloseButtonClick: function (e) { - this._close(); - L.DomEvent.stop(e); - } -}); - -L.popup = function (options, source) { - return new L.Popup(options, source); -}; - - -L.Map.include({ - openPopup: function (popup, latlng, options) { // (Popup) or (String || HTMLElement, LatLng[, Object]) - if (!(popup instanceof L.Popup)) { - popup = new L.Popup(options).setContent(popup); - } - - if (latlng) { - popup.setLatLng(latlng); - } - - if (this.hasLayer(popup)) { - return this; - } - - if (this._popup && this._popup.options.autoClose) { - this.closePopup(); - } - - this._popup = popup; - return this.addLayer(popup); - }, - - closePopup: function (popup) { - if (!popup || popup === this._popup) { - popup = this._popup; - this._popup = null; - } - if (popup) { - this.removeLayer(popup); - } - return this; - } -}); - - -/* - * Adds popup-related methods to all layers. - */ - -L.Layer.include({ - - bindPopup: function (content, options) { - - if (content instanceof L.Popup) { - L.setOptions(content, options); - this._popup = content; - content._source = this; - } else { - if (!this._popup || options) { - this._popup = new L.Popup(options, this); - } - this._popup.setContent(content); - } - - if (!this._popupHandlersAdded) { - this.on({ - click: this._openPopup, - remove: this.closePopup, - move: this._movePopup - }); - this._popupHandlersAdded = true; - } - - // save the originally passed offset - this._originalPopupOffset = this._popup.options.offset; - - return this; - }, - - unbindPopup: function () { - if (this._popup) { - this.off({ - click: this._openPopup, - remove: this.closePopup, - move: this._movePopup - }); - this._popupHandlersAdded = false; - this._popup = null; - } - return this; - }, - - openPopup: function (layer, latlng) { - if (!(layer instanceof L.Layer)) { - latlng = layer; - layer = this; - } - - if (layer instanceof L.FeatureGroup) { - for (var id in this._layers) { - layer = this._layers[id]; - break; - } - } - - if (!latlng) { - latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng(); - } - - if (this._popup && this._map) { - // set the popup offset for this layer - this._popup.options.offset = this._popupAnchor(layer); - - // set popup source to this layer - this._popup._source = layer; - - // update the popup (content, layout, ect...) - this._popup.update(); - - // open the popup on the map - this._map.openPopup(this._popup, latlng); - } - - return this; - }, - - closePopup: function () { - if (this._popup) { - this._popup._close(); - } - return this; - }, - - togglePopup: function (target) { - if (this._popup) { - if (this._popup._map) { - this.closePopup(); - } else { - this.openPopup(target); - } - } - return this; - }, - - setPopupContent: function (content) { - if (this._popup) { - this._popup.setContent(content); - } - return this; - }, - - getPopup: function () { - return this._popup; - }, - - _openPopup: function (e) { - var layer = e.layer || e.target; - - if (!this._popup) { - return; - } - - if (!this._map) { - return; - } - - // if this inherits from Path its a vector and we can just - // open the popup at the new location - if (layer instanceof L.Path) { - this.openPopup(e.layer || e.target, e.latlng); - return; - } - - // otherwise treat it like a marker and figure out - // if we should toggle it open/closed - if (this._map.hasLayer(this._popup) && this._popup._source === layer) { - this.closePopup(); - } else { - this.openPopup(layer, e.latlng); - } - }, - - _popupAnchor: function (layer) { - // where shold we anchor the popup on this layer? - var anchor = layer._getPopupAnchor ? layer._getPopupAnchor() : [0, 0]; - - // add the users passed offset to that - var offsetToAdd = this._originalPopupOffset || L.Popup.prototype.options.offset; - - // return the final point to anchor the popup - return L.point(anchor).add(offsetToAdd); - }, - - _movePopup: function (e) { - this._popup.setLatLng(e.latlng); - } -}); - - -/* - * Popup extension to L.Marker, adding popup-related methods. - */ - -L.Marker.include({ - _getPopupAnchor: function() { - return this.options.icon.options.popupAnchor || [0, 0]; - } -}); - - -/* - * L.LayerGroup is a class to combine several layers into one so that - * you can manipulate the group (e.g. add/remove it) as one layer. - */ - -L.LayerGroup = L.Layer.extend({ - - initialize: function (layers) { - this._layers = {}; - - var i, len; - - if (layers) { - for (i = 0, len = layers.length; i < len; i++) { - this.addLayer(layers[i]); - } - } - }, - - addLayer: function (layer) { - var id = this.getLayerId(layer); - - this._layers[id] = layer; - - if (this._map) { - this._map.addLayer(layer); - } - - return this; - }, - - removeLayer: function (layer) { - var id = layer in this._layers ? layer : this.getLayerId(layer); - - if (this._map && this._layers[id]) { - this._map.removeLayer(this._layers[id]); - } - - delete this._layers[id]; - - return this; - }, - - hasLayer: function (layer) { - return !!layer && (layer in this._layers || this.getLayerId(layer) in this._layers); - }, - - clearLayers: function () { - for (var i in this._layers) { - this.removeLayer(this._layers[i]); - } - return this; - }, - - invoke: function (methodName) { - var args = Array.prototype.slice.call(arguments, 1), - i, layer; - - for (i in this._layers) { - layer = this._layers[i]; - - if (layer[methodName]) { - layer[methodName].apply(layer, args); - } - } - - return this; - }, - - onAdd: function (map) { - for (var i in this._layers) { - map.addLayer(this._layers[i]); - } - }, - - onRemove: function (map) { - for (var i in this._layers) { - map.removeLayer(this._layers[i]); - } - }, - - eachLayer: function (method, context) { - for (var i in this._layers) { - method.call(context, this._layers[i]); - } - return this; - }, - - getLayer: function (id) { - return this._layers[id]; - }, - - getLayers: function () { - var layers = []; - - for (var i in this._layers) { - layers.push(this._layers[i]); - } - return layers; - }, - - setZIndex: function (zIndex) { - return this.invoke('setZIndex', zIndex); - }, - - getLayerId: function (layer) { - return L.stamp(layer); - } -}); - -L.layerGroup = function (layers) { - return new L.LayerGroup(layers); -}; - - -/* - * L.FeatureGroup extends L.LayerGroup by introducing mouse events and additional methods - * shared between a group of interactive layers (like vectors or markers). - */ - -L.FeatureGroup = L.LayerGroup.extend({ - - addLayer: function (layer) { - if (this.hasLayer(layer)) { - return this; - } - - layer.addEventParent(this); - - L.LayerGroup.prototype.addLayer.call(this, layer); - - return this.fire('layeradd', {layer: layer}); - }, - - removeLayer: function (layer) { - if (!this.hasLayer(layer)) { - return this; - } - if (layer in this._layers) { - layer = this._layers[layer]; - } - - layer.removeEventParent(this); - - L.LayerGroup.prototype.removeLayer.call(this, layer); - - return this.fire('layerremove', {layer: layer}); - }, - - setStyle: function (style) { - return this.invoke('setStyle', style); - }, - - bringToFront: function () { - return this.invoke('bringToFront'); - }, - - bringToBack: function () { - return this.invoke('bringToBack'); - }, - - getBounds: function () { - var bounds = new L.LatLngBounds(); - - for (var id in this._layers) { - var layer = this._layers[id]; - bounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng()); - } - return bounds; - } -}); - -L.featureGroup = function (layers) { - return new L.FeatureGroup(layers); -}; - - -/* - * L.Renderer is a base class for renderer implementations (SVG, Canvas); - * handles renderer container, bounds and zoom animation. - */ - -L.Renderer = L.Layer.extend({ - - options: { - // how much to extend the clip area around the map view (relative to its size) - // e.g. 0.1 would be 10% of map view in each direction; defaults to clip with the map view - padding: 0.1 - }, - - initialize: function (options) { - L.setOptions(this, options); - L.stamp(this); - }, - - onAdd: function () { - if (!this._container) { - this._initContainer(); // defined by renderer implementations - - if (this._zoomAnimated) { - L.DomUtil.addClass(this._container, 'leaflet-zoom-animated'); - } - } - - this.getPane().appendChild(this._container); - this._update(); - }, - - onRemove: function () { - L.DomUtil.remove(this._container); - }, - - getEvents: function () { - var events = { - viewreset: this._reset, - zoom: this._updateTransform, - moveend: this._update - }; - if (this._zoomAnimated) { - events.zoomanim = this._animateZoom; - } - return events; - }, - - _animateZoom: function (e) { - var scale = this._map.getZoomScale(e.zoom, this._zoom), - offset = this._map._latLngToNewLayerPoint(this._topLeft, e.zoom, e.center); - - L.DomUtil.setTransform(this._container, offset, scale); - }, - - _updateTransform: function () { - var zoom = this._map.getZoom(), - center = this._map.getCenter(), - scale = this._map.getZoomScale(zoom, this._zoom), - offset = this._map._latLngToNewLayerPoint(this._topLeft, zoom, center); - - L.DomUtil.setTransform(this._container, offset, scale); - }, - - _reset: function () { - this._update(); - this._updateTransform(); - }, - - _update: function () { - // update pixel bounds of renderer container (for positioning/sizing/clipping later) - var p = this.options.padding, - size = this._map.getSize(), - min = this._map.containerPointToLayerPoint(size.multiplyBy(-p)).round(); - - this._bounds = new L.Bounds(min, min.add(size.multiplyBy(1 + p * 2)).round()); - - this._topLeft = this._map.layerPointToLatLng(min); - this._zoom = this._map.getZoom(); - } -}); - - -L.Map.include({ - // used by each vector layer to decide which renderer to use - getRenderer: function (layer) { - var renderer = layer.options.renderer || this._getPaneRenderer(layer.options.pane) || this.options.renderer || this._renderer; - - if (!renderer) { - renderer = this._renderer = (this.options.preferCanvas && L.canvas()) || L.svg(); - } - - if (!this.hasLayer(renderer)) { - this.addLayer(renderer); - } - return renderer; - }, - - _getPaneRenderer: function (name) { - if (name === 'overlayPane' || name === undefined) { - return false; - } - - var renderer = this._paneRenderers[name]; - if (renderer === undefined) { - renderer = (L.SVG && L.svg({pane: name})) || (L.Canvas && L.canvas({pane: name})); - this._paneRenderers[name] = renderer; - } - return renderer; - } -}); - - -/* - * L.Path is the base class for all Leaflet vector layers like polygons and circles. - */ - -L.Path = L.Layer.extend({ - - options: { - stroke: true, - color: '#3388ff', - weight: 3, - opacity: 1, - lineCap: 'round', - lineJoin: 'round', - // dashArray: null - // dashOffset: null - - // fill: false - // fillColor: same as color by default - fillOpacity: 0.2, - fillRule: 'evenodd', - - // className: '' - interactive: true - }, - - onAdd: function () { - this._renderer = this._map.getRenderer(this); - this._renderer._initPath(this); - this._reset(); - this._renderer._addPath(this); - }, - - onRemove: function () { - this._renderer._removePath(this); - }, - - getEvents: function () { - return { - zoomend: this._project, - moveend: this._update, - viewreset: this._reset - }; - }, - - redraw: function () { - if (this._map) { - this._renderer._updatePath(this); - } - return this; - }, - - setStyle: function (style) { - L.setOptions(this, style); - if (this._renderer) { - this._renderer._updateStyle(this); - } - return this; - }, - - bringToFront: function () { - if (this._renderer) { - this._renderer._bringToFront(this); - } - return this; - }, - - bringToBack: function () { - if (this._renderer) { - this._renderer._bringToBack(this); - } - return this; - }, - - getElement: function () { - return this._path; - }, - - _reset: function () { - // defined in children classes - this._project(); - this._update(); - }, - - _clickTolerance: function () { - // used when doing hit detection for Canvas layers - return (this.options.stroke ? this.options.weight / 2 : 0) + (L.Browser.touch ? 10 : 0); - } -}); - - -/* - * L.LineUtil contains different utility functions for line segments - * and polylines (clipping, simplification, distances, etc.) - */ - -L.LineUtil = { - - // Simplify polyline with vertex reduction and Douglas-Peucker simplification. - // Improves rendering performance dramatically by lessening the number of points to draw. - - simplify: function (points, tolerance) { - if (!tolerance || !points.length) { - return points.slice(); - } - - var sqTolerance = tolerance * tolerance; - - // stage 1: vertex reduction - points = this._reducePoints(points, sqTolerance); - - // stage 2: Douglas-Peucker simplification - points = this._simplifyDP(points, sqTolerance); - - return points; - }, - - // distance from a point to a segment between two points - pointToSegmentDistance: function (p, p1, p2) { - return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true)); - }, - - closestPointOnSegment: function (p, p1, p2) { - return this._sqClosestPointOnSegment(p, p1, p2); - }, - - // Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm - _simplifyDP: function (points, sqTolerance) { - - var len = points.length, - ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array, - markers = new ArrayConstructor(len); - - markers[0] = markers[len - 1] = 1; - - this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1); - - var i, - newPoints = []; - - for (i = 0; i < len; i++) { - if (markers[i]) { - newPoints.push(points[i]); - } - } - - return newPoints; - }, - - _simplifyDPStep: function (points, markers, sqTolerance, first, last) { - - var maxSqDist = 0, - index, i, sqDist; - - for (i = first + 1; i <= last - 1; i++) { - sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true); - - if (sqDist > maxSqDist) { - index = i; - maxSqDist = sqDist; - } - } - - if (maxSqDist > sqTolerance) { - markers[index] = 1; - - this._simplifyDPStep(points, markers, sqTolerance, first, index); - this._simplifyDPStep(points, markers, sqTolerance, index, last); - } - }, - - // reduce points that are too close to each other to a single point - _reducePoints: function (points, sqTolerance) { - var reducedPoints = [points[0]]; - - for (var i = 1, prev = 0, len = points.length; i < len; i++) { - if (this._sqDist(points[i], points[prev]) > sqTolerance) { - reducedPoints.push(points[i]); - prev = i; - } - } - if (prev < len - 1) { - reducedPoints.push(points[len - 1]); - } - return reducedPoints; - }, - - // Cohen-Sutherland line clipping algorithm. - // Used to avoid rendering parts of a polyline that are not currently visible. - - clipSegment: function (a, b, bounds, useLastCode, round) { - var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds), - codeB = this._getBitCode(b, bounds), - - codeOut, p, newCode; - - // save 2nd code to avoid calculating it on the next segment - this._lastCode = codeB; - - while (true) { - // if a,b is inside the clip window (trivial accept) - if (!(codeA | codeB)) { - return [a, b]; - // if a,b is outside the clip window (trivial reject) - } else if (codeA & codeB) { - return false; - // other cases - } else { - codeOut = codeA || codeB; - p = this._getEdgeIntersection(a, b, codeOut, bounds, round); - newCode = this._getBitCode(p, bounds); - - if (codeOut === codeA) { - a = p; - codeA = newCode; - } else { - b = p; - codeB = newCode; - } - } - } - }, - - _getEdgeIntersection: function (a, b, code, bounds, round) { - var dx = b.x - a.x, - dy = b.y - a.y, - min = bounds.min, - max = bounds.max, - x, y; - - if (code & 8) { // top - x = a.x + dx * (max.y - a.y) / dy; - y = max.y; - - } else if (code & 4) { // bottom - x = a.x + dx * (min.y - a.y) / dy; - y = min.y; - - } else if (code & 2) { // right - x = max.x; - y = a.y + dy * (max.x - a.x) / dx; - - } else if (code & 1) { // left - x = min.x; - y = a.y + dy * (min.x - a.x) / dx; - } - - return new L.Point(x, y, round); - }, - - _getBitCode: function (/*Point*/ p, bounds) { - var code = 0; - - if (p.x < bounds.min.x) { // left - code |= 1; - } else if (p.x > bounds.max.x) { // right - code |= 2; - } - - if (p.y < bounds.min.y) { // bottom - code |= 4; - } else if (p.y > bounds.max.y) { // top - code |= 8; - } - - return code; - }, - - // square distance (to avoid unnecessary Math.sqrt calls) - _sqDist: function (p1, p2) { - var dx = p2.x - p1.x, - dy = p2.y - p1.y; - return dx * dx + dy * dy; - }, - - // return closest point on segment or distance to that point - _sqClosestPointOnSegment: function (p, p1, p2, sqDist) { - var x = p1.x, - y = p1.y, - dx = p2.x - x, - dy = p2.y - y, - dot = dx * dx + dy * dy, - t; - - if (dot > 0) { - t = ((p.x - x) * dx + (p.y - y) * dy) / dot; - - if (t > 1) { - x = p2.x; - y = p2.y; - } else if (t > 0) { - x += dx * t; - y += dy * t; - } - } - - dx = p.x - x; - dy = p.y - y; - - return sqDist ? dx * dx + dy * dy : new L.Point(x, y); - } -}; - - -/* - * L.Polyline implements polyline vector layer (a set of points connected with lines) - */ - -L.Polyline = L.Path.extend({ - - options: { - // how much to simplify the polyline on each zoom level - // more = better performance and smoother look, less = more accurate - smoothFactor: 1.0 - // noClip: false - }, - - initialize: function (latlngs, options) { - L.setOptions(this, options); - this._setLatLngs(latlngs); - }, - - getLatLngs: function () { - return this._latlngs; - }, - - setLatLngs: function (latlngs) { - this._setLatLngs(latlngs); - return this.redraw(); - }, - - isEmpty: function () { - return !this._latlngs.length; - }, - - closestLayerPoint: function (p) { - var minDistance = Infinity, - minPoint = null, - closest = L.LineUtil._sqClosestPointOnSegment, - p1, p2; - - for (var j = 0, jLen = this._parts.length; j < jLen; j++) { - var points = this._parts[j]; - - for (var i = 1, len = points.length; i < len; i++) { - p1 = points[i - 1]; - p2 = points[i]; - - var sqDist = closest(p, p1, p2, true); - - if (sqDist < minDistance) { - minDistance = sqDist; - minPoint = closest(p, p1, p2); - } - } - } - if (minPoint) { - minPoint.distance = Math.sqrt(minDistance); - } - return minPoint; - }, - - getCenter: function () { - var i, halfDist, segDist, dist, p1, p2, ratio, - points = this._rings[0], - len = points.length; - - if (!len) { return null; } - - // polyline centroid algorithm; only uses the first ring if there are multiple - - for (i = 0, halfDist = 0; i < len - 1; i++) { - halfDist += points[i].distanceTo(points[i + 1]) / 2; - } - - // The line is so small in the current view that all points are on the same pixel. - if (halfDist === 0) { - return this._map.layerPointToLatLng(points[0]); - } - - for (i = 0, dist = 0; i < len - 1; i++) { - p1 = points[i]; - p2 = points[i + 1]; - segDist = p1.distanceTo(p2); - dist += segDist; - - if (dist > halfDist) { - ratio = (dist - halfDist) / segDist; - return this._map.layerPointToLatLng([ - p2.x - ratio * (p2.x - p1.x), - p2.y - ratio * (p2.y - p1.y) - ]); - } - } - }, - - getBounds: function () { - return this._bounds; - }, - - addLatLng: function (latlng, latlngs) { - latlngs = latlngs || this._defaultShape(); - latlng = L.latLng(latlng); - latlngs.push(latlng); - this._bounds.extend(latlng); - return this.redraw(); - }, - - _setLatLngs: function (latlngs) { - this._bounds = new L.LatLngBounds(); - this._latlngs = this._convertLatLngs(latlngs); - }, - - _defaultShape: function () { - return L.Polyline._flat(this._latlngs) ? this._latlngs : this._latlngs[0]; - }, - - // recursively convert latlngs input into actual LatLng instances; calculate bounds along the way - _convertLatLngs: function (latlngs) { - var result = [], - flat = L.Polyline._flat(latlngs); - - for (var i = 0, len = latlngs.length; i < len; i++) { - if (flat) { - result[i] = L.latLng(latlngs[i]); - this._bounds.extend(result[i]); - } else { - result[i] = this._convertLatLngs(latlngs[i]); - } - } - - return result; - }, - - _project: function () { - this._rings = []; - this._projectLatlngs(this._latlngs, this._rings); - - // project bounds as well to use later for Canvas hit detection/etc. - var w = this._clickTolerance(), - p = new L.Point(w, -w); - - if (this._bounds.isValid()) { - this._pxBounds = new L.Bounds( - this._map.latLngToLayerPoint(this._bounds.getSouthWest())._subtract(p), - this._map.latLngToLayerPoint(this._bounds.getNorthEast())._add(p)); - } - }, - - // recursively turns latlngs into a set of rings with projected coordinates - _projectLatlngs: function (latlngs, result) { - - var flat = latlngs[0] instanceof L.LatLng, - len = latlngs.length, - i, ring; - - if (flat) { - ring = []; - for (i = 0; i < len; i++) { - ring[i] = this._map.latLngToLayerPoint(latlngs[i]); - } - result.push(ring); - } else { - for (i = 0; i < len; i++) { - this._projectLatlngs(latlngs[i], result); - } - } - }, - - // clip polyline by renderer bounds so that we have less to render for performance - _clipPoints: function () { - var bounds = this._renderer._bounds; - - this._parts = []; - if (!this._pxBounds || !this._pxBounds.intersects(bounds)) { - return; - } - - if (this.options.noClip) { - this._parts = this._rings; - return; - } - - var parts = this._parts, - i, j, k, len, len2, segment, points; - - for (i = 0, k = 0, len = this._rings.length; i < len; i++) { - points = this._rings[i]; - - for (j = 0, len2 = points.length; j < len2 - 1; j++) { - segment = L.LineUtil.clipSegment(points[j], points[j + 1], bounds, j, true); - - if (!segment) { continue; } - - parts[k] = parts[k] || []; - parts[k].push(segment[0]); - - // if segment goes out of screen, or it's the last one, it's the end of the line part - if ((segment[1] !== points[j + 1]) || (j === len2 - 2)) { - parts[k].push(segment[1]); - k++; - } - } - } - }, - - // simplify each clipped part of the polyline for performance - _simplifyPoints: function () { - var parts = this._parts, - tolerance = this.options.smoothFactor; - - for (var i = 0, len = parts.length; i < len; i++) { - parts[i] = L.LineUtil.simplify(parts[i], tolerance); - } - }, - - _update: function () { - if (!this._map) { return; } - - this._clipPoints(); - this._simplifyPoints(); - this._updatePath(); - }, - - _updatePath: function () { - this._renderer._updatePoly(this); - } -}); - -L.polyline = function (latlngs, options) { - return new L.Polyline(latlngs, options); -}; - -L.Polyline._flat = function (latlngs) { - // true if it's a flat array of latlngs; false if nested - return !L.Util.isArray(latlngs[0]) || (typeof latlngs[0][0] !== 'object' && typeof latlngs[0][0] !== 'undefined'); -}; - - -/* - * L.PolyUtil contains utility functions for polygons (clipping, etc.). - */ - -L.PolyUtil = {}; - -/* - * Sutherland-Hodgeman polygon clipping algorithm. - * Used to avoid rendering parts of a polygon that are not currently visible. - */ -L.PolyUtil.clipPolygon = function (points, bounds, round) { - var clippedPoints, - edges = [1, 4, 2, 8], - i, j, k, - a, b, - len, edge, p, - lu = L.LineUtil; - - for (i = 0, len = points.length; i < len; i++) { - points[i]._code = lu._getBitCode(points[i], bounds); - } - - // for each edge (left, bottom, right, top) - for (k = 0; k < 4; k++) { - edge = edges[k]; - clippedPoints = []; - - for (i = 0, len = points.length, j = len - 1; i < len; j = i++) { - a = points[i]; - b = points[j]; - - // if a is inside the clip window - if (!(a._code & edge)) { - // if b is outside the clip window (a->b goes out of screen) - if (b._code & edge) { - p = lu._getEdgeIntersection(b, a, edge, bounds, round); - p._code = lu._getBitCode(p, bounds); - clippedPoints.push(p); - } - clippedPoints.push(a); - - // else if b is inside the clip window (a->b enters the screen) - } else if (!(b._code & edge)) { - p = lu._getEdgeIntersection(b, a, edge, bounds, round); - p._code = lu._getBitCode(p, bounds); - clippedPoints.push(p); - } - } - points = clippedPoints; - } - - return points; -}; - - -/* - * L.Polygon implements polygon vector layer (closed polyline with a fill inside). - */ - -L.Polygon = L.Polyline.extend({ - - options: { - fill: true - }, - - isEmpty: function () { - return !this._latlngs.length || !this._latlngs[0].length; - }, - - getCenter: function () { - var i, j, p1, p2, f, area, x, y, center, - points = this._rings[0], - len = points.length; - - if (!len) { return null; } - - // polygon centroid algorithm; only uses the first ring if there are multiple - - area = x = y = 0; - - for (i = 0, j = len - 1; i < len; j = i++) { - p1 = points[i]; - p2 = points[j]; - - f = p1.y * p2.x - p2.y * p1.x; - x += (p1.x + p2.x) * f; - y += (p1.y + p2.y) * f; - area += f * 3; - } - - if (area === 0) { - // Polygon is so small that all points are on same pixel. - center = points[0]; - } else { - center = [x / area, y / area]; - } - return this._map.layerPointToLatLng(center); - }, - - _convertLatLngs: function (latlngs) { - var result = L.Polyline.prototype._convertLatLngs.call(this, latlngs), - len = result.length; - - // remove last point if it equals first one - if (len >= 2 && result[0] instanceof L.LatLng && result[0].equals(result[len - 1])) { - result.pop(); - } - return result; - }, - - _setLatLngs: function (latlngs) { - L.Polyline.prototype._setLatLngs.call(this, latlngs); - if (L.Polyline._flat(this._latlngs)) { - this._latlngs = [this._latlngs]; - } - }, - - _defaultShape: function () { - return L.Polyline._flat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0]; - }, - - _clipPoints: function () { - // polygons need a different clipping algorithm so we redefine that - - var bounds = this._renderer._bounds, - w = this.options.weight, - p = new L.Point(w, w); - - // increase clip padding by stroke width to avoid stroke on clip edges - bounds = new L.Bounds(bounds.min.subtract(p), bounds.max.add(p)); - - this._parts = []; - if (!this._pxBounds || !this._pxBounds.intersects(bounds)) { - return; - } - - if (this.options.noClip) { - this._parts = this._rings; - return; - } - - for (var i = 0, len = this._rings.length, clipped; i < len; i++) { - clipped = L.PolyUtil.clipPolygon(this._rings[i], bounds, true); - if (clipped.length) { - this._parts.push(clipped); - } - } - }, - - _updatePath: function () { - this._renderer._updatePoly(this, true); - } -}); - -L.polygon = function (latlngs, options) { - return new L.Polygon(latlngs, options); -}; - - -/* - * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object. - */ - -L.Rectangle = L.Polygon.extend({ - initialize: function (latLngBounds, options) { - L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options); - }, - - setBounds: function (latLngBounds) { - this.setLatLngs(this._boundsToLatLngs(latLngBounds)); - }, - - _boundsToLatLngs: function (latLngBounds) { - latLngBounds = L.latLngBounds(latLngBounds); - return [ - latLngBounds.getSouthWest(), - latLngBounds.getNorthWest(), - latLngBounds.getNorthEast(), - latLngBounds.getSouthEast() - ]; - } -}); - -L.rectangle = function (latLngBounds, options) { - return new L.Rectangle(latLngBounds, options); -}; - - -/* - * L.CircleMarker is a circle overlay with a permanent pixel radius. - */ - -L.CircleMarker = L.Path.extend({ - - options: { - fill: true, - radius: 10 - }, - - initialize: function (latlng, options) { - L.setOptions(this, options); - this._latlng = L.latLng(latlng); - this._radius = this.options.radius; - }, - - setLatLng: function (latlng) { - this._latlng = L.latLng(latlng); - this.redraw(); - return this.fire('move', {latlng: this._latlng}); - }, - - getLatLng: function () { - return this._latlng; - }, - - setRadius: function (radius) { - this.options.radius = this._radius = radius; - return this.redraw(); - }, - - getRadius: function () { - return this._radius; - }, - - setStyle : function (options) { - var radius = options && options.radius || this._radius; - L.Path.prototype.setStyle.call(this, options); - this.setRadius(radius); - return this; - }, - - _project: function () { - this._point = this._map.latLngToLayerPoint(this._latlng); - this._updateBounds(); - }, - - _updateBounds: function () { - var r = this._radius, - r2 = this._radiusY || r, - w = this._clickTolerance(), - p = [r + w, r2 + w]; - this._pxBounds = new L.Bounds(this._point.subtract(p), this._point.add(p)); - }, - - _update: function () { - if (this._map) { - this._updatePath(); - } - }, - - _updatePath: function () { - this._renderer._updateCircle(this); - }, - - _empty: function () { - return this._radius && !this._renderer._bounds.intersects(this._pxBounds); - } -}); - -L.circleMarker = function (latlng, options) { - return new L.CircleMarker(latlng, options); -}; - - -/* - * L.Circle is a circle overlay (with a certain radius in meters). - * It's an approximation and starts to diverge from a real circle closer to poles (due to projection distortion) - */ - -L.Circle = L.CircleMarker.extend({ - - initialize: function (latlng, radius, options) { - L.setOptions(this, options); - this._latlng = L.latLng(latlng); - this._mRadius = radius; - }, - - setRadius: function (radius) { - this._mRadius = radius; - return this.redraw(); - }, - - getRadius: function () { - return this._mRadius; - }, - - getBounds: function () { - var half = [this._radius, this._radiusY]; - - return new L.LatLngBounds( - this._map.layerPointToLatLng(this._point.subtract(half)), - this._map.layerPointToLatLng(this._point.add(half))); - }, - - setStyle: L.Path.prototype.setStyle, - - _project: function () { - - var lng = this._latlng.lng, - lat = this._latlng.lat, - map = this._map, - crs = map.options.crs; - - if (crs.distance === L.CRS.Earth.distance) { - var d = Math.PI / 180, - latR = (this._mRadius / L.CRS.Earth.R) / d, - top = map.project([lat + latR, lng]), - bottom = map.project([lat - latR, lng]), - p = top.add(bottom).divideBy(2), - lat2 = map.unproject(p).lat, - lngR = Math.acos((Math.cos(latR * d) - Math.sin(lat * d) * Math.sin(lat2 * d)) / - (Math.cos(lat * d) * Math.cos(lat2 * d))) / d; - - this._point = p.subtract(map.getPixelOrigin()); - this._radius = isNaN(lngR) ? 0 : Math.max(Math.round(p.x - map.project([lat2, lng - lngR]).x), 1); - this._radiusY = Math.max(Math.round(p.y - top.y), 1); - - } else { - var latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0])); - - this._point = map.latLngToLayerPoint(this._latlng); - this._radius = this._point.x - map.latLngToLayerPoint(latlng2).x; - } - - this._updateBounds(); - } -}); - -L.circle = function (latlng, radius, options) { - return new L.Circle(latlng, radius, options); -}; - - -/* - * L.SVG renders vector layers with SVG. All SVG-specific code goes here. - */ - -L.SVG = L.Renderer.extend({ - - _initContainer: function () { - this._container = L.SVG.create('svg'); - - // makes it possible to click through svg root; we'll reset it back in individual paths - this._container.setAttribute('pointer-events', 'none'); - - this._rootGroup = L.SVG.create('g'); - this._container.appendChild(this._rootGroup); - }, - - _update: function () { - if (this._map._animatingZoom && this._bounds) { return; } - - L.Renderer.prototype._update.call(this); - - var b = this._bounds, - size = b.getSize(), - container = this._container; - - // set size of svg-container if changed - if (!this._svgSize || !this._svgSize.equals(size)) { - this._svgSize = size; - container.setAttribute('width', size.x); - container.setAttribute('height', size.y); - } - - // movement: update container viewBox so that we don't have to change coordinates of individual layers - L.DomUtil.setPosition(container, b.min); - container.setAttribute('viewBox', [b.min.x, b.min.y, size.x, size.y].join(' ')); - }, - - // methods below are called by vector layers implementations - - _initPath: function (layer) { - var path = layer._path = L.SVG.create('path'); - - if (layer.options.className) { - L.DomUtil.addClass(path, layer.options.className); - } - - if (layer.options.interactive) { - L.DomUtil.addClass(path, 'leaflet-interactive'); - } - - this._updateStyle(layer); - }, - - _addPath: function (layer) { - this._rootGroup.appendChild(layer._path); - layer.addInteractiveTarget(layer._path); - }, - - _removePath: function (layer) { - L.DomUtil.remove(layer._path); - layer.removeInteractiveTarget(layer._path); - }, - - _updatePath: function (layer) { - layer._project(); - layer._update(); - }, - - _updateStyle: function (layer) { - var path = layer._path, - options = layer.options; - - if (!path) { return; } - - if (options.stroke) { - path.setAttribute('stroke', options.color); - path.setAttribute('stroke-opacity', options.opacity); - path.setAttribute('stroke-width', options.weight); - path.setAttribute('stroke-linecap', options.lineCap); - path.setAttribute('stroke-linejoin', options.lineJoin); - - if (options.dashArray) { - path.setAttribute('stroke-dasharray', options.dashArray); - } else { - path.removeAttribute('stroke-dasharray'); - } - - if (options.dashOffset) { - path.setAttribute('stroke-dashoffset', options.dashOffset); - } else { - path.removeAttribute('stroke-dashoffset'); - } - } else { - path.setAttribute('stroke', 'none'); - } - - if (options.fill) { - path.setAttribute('fill', options.fillColor || options.color); - path.setAttribute('fill-opacity', options.fillOpacity); - path.setAttribute('fill-rule', options.fillRule || 'evenodd'); - } else { - path.setAttribute('fill', 'none'); - } - - path.setAttribute('pointer-events', options.pointerEvents || (options.interactive ? 'visiblePainted' : 'none')); - }, - - _updatePoly: function (layer, closed) { - this._setPath(layer, L.SVG.pointsToPath(layer._parts, closed)); - }, - - _updateCircle: function (layer) { - var p = layer._point, - r = layer._radius, - r2 = layer._radiusY || r, - arc = 'a' + r + ',' + r2 + ' 0 1,0 '; - - // drawing a circle with two half-arcs - var d = layer._empty() ? 'M0 0' : - 'M' + (p.x - r) + ',' + p.y + - arc + (r * 2) + ',0 ' + - arc + (-r * 2) + ',0 '; - - this._setPath(layer, d); - }, - - _setPath: function (layer, path) { - layer._path.setAttribute('d', path); - }, - - // SVG does not have the concept of zIndex so we resort to changing the DOM order of elements - _bringToFront: function (layer) { - L.DomUtil.toFront(layer._path); - }, - - _bringToBack: function (layer) { - L.DomUtil.toBack(layer._path); - } -}); - - -L.extend(L.SVG, { - create: function (name) { - return document.createElementNS('http://www.w3.org/2000/svg', name); - }, - - // generates SVG path string for multiple rings, with each ring turning into "M..L..L.." instructions - pointsToPath: function (rings, closed) { - var str = '', - i, j, len, len2, points, p; - - for (i = 0, len = rings.length; i < len; i++) { - points = rings[i]; - - for (j = 0, len2 = points.length; j < len2; j++) { - p = points[j]; - str += (j ? 'L' : 'M') + p.x + ' ' + p.y; - } - - // closes the ring for polygons; "x" is VML syntax - str += closed ? (L.Browser.svg ? 'z' : 'x') : ''; - } - - // SVG complains about empty path strings - return str || 'M0 0'; - } -}); - -L.Browser.svg = !!(document.createElementNS && L.SVG.create('svg').createSVGRect); - -L.svg = function (options) { - return L.Browser.svg || L.Browser.vml ? new L.SVG(options) : null; -}; - - -/* - * Vector rendering for IE7-8 through VML. - * Thanks to Dmitry Baranovsky and his Raphael library for inspiration! - */ - -L.Browser.vml = !L.Browser.svg && (function () { - try { - var div = document.createElement('div'); - div.innerHTML = ''; - - var shape = div.firstChild; - shape.style.behavior = 'url(#default#VML)'; - - return shape && (typeof shape.adj === 'object'); - - } catch (e) { - return false; - } -}()); - -// redefine some SVG methods to handle VML syntax which is similar but with some differences -L.SVG.include(!L.Browser.vml ? {} : { - - _initContainer: function () { - this._container = L.DomUtil.create('div', 'leaflet-vml-container'); - }, - - _update: function () { - if (this._map._animatingZoom) { return; } - L.Renderer.prototype._update.call(this); - }, - - _initPath: function (layer) { - var container = layer._container = L.SVG.create('shape'); - - L.DomUtil.addClass(container, 'leaflet-vml-shape ' + (this.options.className || '')); - - container.coordsize = '1 1'; - - layer._path = L.SVG.create('path'); - container.appendChild(layer._path); - - this._updateStyle(layer); - }, - - _addPath: function (layer) { - var container = layer._container; - this._container.appendChild(container); - - if (layer.options.interactive) { - layer.addInteractiveTarget(container); - } - }, - - _removePath: function (layer) { - var container = layer._container; - L.DomUtil.remove(container); - layer.removeInteractiveTarget(container); - }, - - _updateStyle: function (layer) { - var stroke = layer._stroke, - fill = layer._fill, - options = layer.options, - container = layer._container; - - container.stroked = !!options.stroke; - container.filled = !!options.fill; - - if (options.stroke) { - if (!stroke) { - stroke = layer._stroke = L.SVG.create('stroke'); - container.appendChild(stroke); - } - stroke.weight = options.weight + 'px'; - stroke.color = options.color; - stroke.opacity = options.opacity; - - if (options.dashArray) { - stroke.dashStyle = L.Util.isArray(options.dashArray) ? - options.dashArray.join(' ') : - options.dashArray.replace(/( *, *)/g, ' '); - } else { - stroke.dashStyle = ''; - } - stroke.endcap = options.lineCap.replace('butt', 'flat'); - stroke.joinstyle = options.lineJoin; - - } else if (stroke) { - container.removeChild(stroke); - layer._stroke = null; - } - - if (options.fill) { - if (!fill) { - fill = layer._fill = L.SVG.create('fill'); - container.appendChild(fill); - } - fill.color = options.fillColor || options.color; - fill.opacity = options.fillOpacity; - - } else if (fill) { - container.removeChild(fill); - layer._fill = null; - } - }, - - _updateCircle: function (layer) { - var p = layer._point.round(), - r = Math.round(layer._radius), - r2 = Math.round(layer._radiusY || r); - - this._setPath(layer, layer._empty() ? 'M0 0' : - 'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r2 + ' 0,' + (65535 * 360)); - }, - - _setPath: function (layer, path) { - layer._path.v = path; - }, - - _bringToFront: function (layer) { - L.DomUtil.toFront(layer._container); - }, - - _bringToBack: function (layer) { - L.DomUtil.toBack(layer._container); - } -}); - -if (L.Browser.vml) { - L.SVG.create = (function () { - try { - document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml'); - return function (name) { - return document.createElement(''); - }; - } catch (e) { - return function (name) { - return document.createElement('<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">'); - }; - } - })(); -} - - -/* - * L.Canvas handles Canvas vector layers rendering and mouse events handling. All Canvas-specific code goes here. - */ - -L.Canvas = L.Renderer.extend({ - - onAdd: function () { - L.Renderer.prototype.onAdd.call(this); - - this._layers = this._layers || {}; - - // redraw vectors since canvas is cleared upon removal - this._draw(); - }, - - _initContainer: function () { - var container = this._container = document.createElement('canvas'); - - L.DomEvent - .on(container, 'mousemove', this._onMouseMove, this) - .on(container, 'click dblclick mousedown mouseup contextmenu', this._onClick, this) - .on(container, 'mouseout', this._handleMouseOut, this); - - this._ctx = container.getContext('2d'); - }, - - _update: function () { - if (this._map._animatingZoom && this._bounds) { return; } - - L.Renderer.prototype._update.call(this); - - var b = this._bounds, - container = this._container, - size = b.getSize(), - m = L.Browser.retina ? 2 : 1; - - L.DomUtil.setPosition(container, b.min); - - // set canvas size (also clearing it); use double size on retina - container.width = m * size.x; - container.height = m * size.y; - container.style.width = size.x + 'px'; - container.style.height = size.y + 'px'; - - if (L.Browser.retina) { - this._ctx.scale(2, 2); - } - - // translate so we use the same path coordinates after canvas element moves - this._ctx.translate(-b.min.x, -b.min.y); - }, - - _initPath: function (layer) { - this._layers[L.stamp(layer)] = layer; - }, - - _addPath: L.Util.falseFn, - - _removePath: function (layer) { - layer._removed = true; - this._requestRedraw(layer); - }, - - _updatePath: function (layer) { - this._redrawBounds = layer._pxBounds; - this._draw(true); - layer._project(); - layer._update(); - this._draw(); - this._redrawBounds = null; - }, - - _updateStyle: function (layer) { - this._requestRedraw(layer); - }, - - _requestRedraw: function (layer) { - if (!this._map) { return; } - - this._redrawBounds = this._redrawBounds || new L.Bounds(); - this._redrawBounds.extend(layer._pxBounds.min).extend(layer._pxBounds.max); - - this._redrawRequest = this._redrawRequest || L.Util.requestAnimFrame(this._redraw, this); - }, - - _redraw: function () { - this._redrawRequest = null; - - this._draw(true); // clear layers in redraw bounds - this._draw(); // draw layers - - this._redrawBounds = null; - }, - - _draw: function (clear) { - this._clear = clear; - var layer; - - for (var id in this._layers) { - layer = this._layers[id]; - if (!this._redrawBounds || layer._pxBounds.intersects(this._redrawBounds)) { - layer._updatePath(); - } - if (clear && layer._removed) { - delete layer._removed; - delete this._layers[id]; - } - } - }, - - _updatePoly: function (layer, closed) { - - var i, j, len2, p, - parts = layer._parts, - len = parts.length, - ctx = this._ctx; - - if (!len) { return; } - - ctx.beginPath(); - - for (i = 0; i < len; i++) { - for (j = 0, len2 = parts[i].length; j < len2; j++) { - p = parts[i][j]; - ctx[j ? 'lineTo' : 'moveTo'](p.x, p.y); - } - if (closed) { - ctx.closePath(); - } - } - - this._fillStroke(ctx, layer); - - // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature - }, - - _updateCircle: function (layer) { - - if (layer._empty()) { return; } - - var p = layer._point, - ctx = this._ctx, - r = layer._radius, - s = (layer._radiusY || r) / r; - - if (s !== 1) { - ctx.save(); - ctx.scale(1, s); - } - - ctx.beginPath(); - ctx.arc(p.x, p.y / s, r, 0, Math.PI * 2, false); - - if (s !== 1) { - ctx.restore(); - } - - this._fillStroke(ctx, layer); - }, - - _fillStroke: function (ctx, layer) { - var clear = this._clear, - options = layer.options; - - ctx.globalCompositeOperation = clear ? 'destination-out' : 'source-over'; - - if (options.fill) { - ctx.globalAlpha = clear ? 1 : options.fillOpacity; - ctx.fillStyle = options.fillColor || options.color; - ctx.fill(options.fillRule || 'evenodd'); - } - - if (options.stroke && options.weight !== 0) { - ctx.globalAlpha = clear ? 1 : options.opacity; - - // if clearing shape, do it with the previously drawn line width - layer._prevWeight = ctx.lineWidth = clear ? layer._prevWeight + 1 : options.weight; - - ctx.strokeStyle = options.color; - ctx.lineCap = options.lineCap; - ctx.lineJoin = options.lineJoin; - ctx.stroke(); - } - }, - - // Canvas obviously doesn't have mouse events for individual drawn objects, - // so we emulate that by calculating what's under the mouse on mousemove/click manually - - _onClick: function (e) { - var point = this._map.mouseEventToLayerPoint(e); - - for (var id in this._layers) { - if (this._layers[id]._containsPoint(point)) { - L.DomEvent._fakeStop(e); - this._fireEvent(this._layers[id], e); - } - } - }, - - _onMouseMove: function (e) { - if (!this._map || this._map._animatingZoom) { return; } - - var point = this._map.mouseEventToLayerPoint(e); - this._handleMouseOut(e, point); - this._handleMouseHover(e, point); - }, - - - _handleMouseOut: function (e, point) { - var layer = this._hoveredLayer; - if (layer && (e.type === 'mouseout' || !layer._containsPoint(point))) { - // if we're leaving the layer, fire mouseout - L.DomUtil.removeClass(this._container, 'leaflet-interactive'); - this._fireEvent(layer, e, 'mouseout'); - this._hoveredLayer = null; - } - }, - - _handleMouseHover: function (e, point) { - var id, layer; - if (!this._hoveredLayer) { - for (id in this._layers) { - layer = this._layers[id]; - if (layer.options.interactive && layer._containsPoint(point)) { - L.DomUtil.addClass(this._container, 'leaflet-interactive'); // change cursor - this._fireEvent(layer, e, 'mouseover'); - this._hoveredLayer = layer; - break; - } - } - } - if (this._hoveredLayer) { - this._fireEvent(this._hoveredLayer, e); - } - }, - - _fireEvent: function (layer, e, type) { - this._map._fireDOMEvent(e, type || e.type, [layer]); - }, - - // TODO _bringToFront & _bringToBack, pretty tricky - - _bringToFront: L.Util.falseFn, - _bringToBack: L.Util.falseFn -}); - -L.Browser.canvas = (function () { - return !!document.createElement('canvas').getContext; -}()); - -L.canvas = function (options) { - return L.Browser.canvas ? new L.Canvas(options) : null; -}; - -L.Polyline.prototype._containsPoint = function (p, closed) { - var i, j, k, len, len2, part, - w = this._clickTolerance(); - - if (!this._pxBounds.contains(p)) { return false; } - - // hit detection for polylines - for (i = 0, len = this._parts.length; i < len; i++) { - part = this._parts[i]; - - for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) { - if (!closed && (j === 0)) { continue; } - - if (L.LineUtil.pointToSegmentDistance(p, part[k], part[j]) <= w) { - return true; - } - } - } - return false; -}; - -L.Polygon.prototype._containsPoint = function (p) { - var inside = false, - part, p1, p2, i, j, k, len, len2; - - if (!this._pxBounds.contains(p)) { return false; } - - // ray casting algorithm for detecting if point is in polygon - for (i = 0, len = this._parts.length; i < len; i++) { - part = this._parts[i]; - - for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) { - p1 = part[j]; - p2 = part[k]; - - if (((p1.y > p.y) !== (p2.y > p.y)) && (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) { - inside = !inside; - } - } - } - - // also check if it's on polygon stroke - return inside || L.Polyline.prototype._containsPoint.call(this, p, true); -}; - -L.CircleMarker.prototype._containsPoint = function (p) { - return p.distanceTo(this._point) <= this._radius + this._clickTolerance(); -}; - - -/* - * L.GeoJSON turns any GeoJSON data into a Leaflet layer. - */ - -L.GeoJSON = L.FeatureGroup.extend({ - - initialize: function (geojson, options) { - L.setOptions(this, options); - - this._layers = {}; - - if (geojson) { - this.addData(geojson); - } - }, - - addData: function (geojson) { - var features = L.Util.isArray(geojson) ? geojson : geojson.features, - i, len, feature; - - if (features) { - for (i = 0, len = features.length; i < len; i++) { - // only add this if geometry or geometries are set and not null - feature = features[i]; - if (feature.geometries || feature.geometry || feature.features || feature.coordinates) { - this.addData(feature); - } - } - return this; - } - - var options = this.options; - - if (options.filter && !options.filter(geojson)) { return this; } - - var layer = L.GeoJSON.geometryToLayer(geojson, options); - if (!layer) { - return this; - } - layer.feature = L.GeoJSON.asFeature(geojson); - - layer.defaultOptions = layer.options; - this.resetStyle(layer); - - if (options.onEachFeature) { - options.onEachFeature(geojson, layer); - } - - return this.addLayer(layer); - }, - - resetStyle: function (layer) { - // reset any custom styles - layer.options = layer.defaultOptions; - this._setLayerStyle(layer, this.options.style); - return this; - }, - - setStyle: function (style) { - return this.eachLayer(function (layer) { - this._setLayerStyle(layer, style); - }, this); - }, - - _setLayerStyle: function (layer, style) { - if (typeof style === 'function') { - style = style(layer.feature); - } - if (layer.setStyle) { - layer.setStyle(style); - } - } -}); - -L.extend(L.GeoJSON, { - geometryToLayer: function (geojson, options) { - - var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson, - coords = geometry ? geometry.coordinates : null, - layers = [], - pointToLayer = options && options.pointToLayer, - coordsToLatLng = options && options.coordsToLatLng || this.coordsToLatLng, - latlng, latlngs, i, len; - - if (!coords && !geometry) { - return null; - } - - switch (geometry.type) { - case 'Point': - latlng = coordsToLatLng(coords); - return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng); - - case 'MultiPoint': - for (i = 0, len = coords.length; i < len; i++) { - latlng = coordsToLatLng(coords[i]); - layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng)); - } - return new L.FeatureGroup(layers); - - case 'LineString': - case 'MultiLineString': - latlngs = this.coordsToLatLngs(coords, geometry.type === 'LineString' ? 0 : 1, coordsToLatLng); - return new L.Polyline(latlngs, options); - - case 'Polygon': - case 'MultiPolygon': - latlngs = this.coordsToLatLngs(coords, geometry.type === 'Polygon' ? 1 : 2, coordsToLatLng); - return new L.Polygon(latlngs, options); - - case 'GeometryCollection': - for (i = 0, len = geometry.geometries.length; i < len; i++) { - var layer = this.geometryToLayer({ - geometry: geometry.geometries[i], - type: 'Feature', - properties: geojson.properties - }, options); - - if (layer) { - layers.push(layer); - } - } - return new L.FeatureGroup(layers); - - default: - throw new Error('Invalid GeoJSON object.'); - } - }, - - coordsToLatLng: function (coords) { - return new L.LatLng(coords[1], coords[0], coords[2]); - }, - - coordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) { - var latlngs = []; - - for (var i = 0, len = coords.length, latlng; i < len; i++) { - latlng = levelsDeep ? - this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) : - (coordsToLatLng || this.coordsToLatLng)(coords[i]); - - latlngs.push(latlng); - } - - return latlngs; - }, - - latLngToCoords: function (latlng) { - return latlng.alt !== undefined ? - [latlng.lng, latlng.lat, latlng.alt] : - [latlng.lng, latlng.lat]; - }, - - latLngsToCoords: function (latlngs, levelsDeep, closed) { - var coords = []; - - for (var i = 0, len = latlngs.length; i < len; i++) { - coords.push(levelsDeep ? - L.GeoJSON.latLngsToCoords(latlngs[i], levelsDeep - 1, closed) : - L.GeoJSON.latLngToCoords(latlngs[i])); - } - - if (!levelsDeep && closed) { - coords.push(coords[0]); - } - - return coords; - }, - - getFeature: function (layer, newGeometry) { - return layer.feature ? - L.extend({}, layer.feature, {geometry: newGeometry}) : - L.GeoJSON.asFeature(newGeometry); - }, - - asFeature: function (geoJSON) { - if (geoJSON.type === 'Feature') { - return geoJSON; - } - - return { - type: 'Feature', - properties: {}, - geometry: geoJSON - }; - } -}); - -var PointToGeoJSON = { - toGeoJSON: function () { - return L.GeoJSON.getFeature(this, { - type: 'Point', - coordinates: L.GeoJSON.latLngToCoords(this.getLatLng()) - }); - } -}; - -L.Marker.include(PointToGeoJSON); -L.Circle.include(PointToGeoJSON); -L.CircleMarker.include(PointToGeoJSON); - -L.Polyline.prototype.toGeoJSON = function () { - var multi = !L.Polyline._flat(this._latlngs); - - var coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 1 : 0); - - return L.GeoJSON.getFeature(this, { - type: (multi ? 'Multi' : '') + 'LineString', - coordinates: coords - }); -}; - -L.Polygon.prototype.toGeoJSON = function () { - var holes = !L.Polyline._flat(this._latlngs), - multi = holes && !L.Polyline._flat(this._latlngs[0]); - - var coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true); - - if (!holes) { - coords = [coords]; - } - - return L.GeoJSON.getFeature(this, { - type: (multi ? 'Multi' : '') + 'Polygon', - coordinates: coords - }); -}; - - -L.LayerGroup.include({ - toMultiPoint: function () { - var coords = []; - - this.eachLayer(function (layer) { - coords.push(layer.toGeoJSON().geometry.coordinates); - }); - - return L.GeoJSON.getFeature(this, { - type: 'MultiPoint', - coordinates: coords - }); - }, - - toGeoJSON: function () { - - var type = this.feature && this.feature.geometry && this.feature.geometry.type; - - if (type === 'MultiPoint') { - return this.toMultiPoint(); - } - - var isGeometryCollection = type === 'GeometryCollection', - jsons = []; - - this.eachLayer(function (layer) { - if (layer.toGeoJSON) { - var json = layer.toGeoJSON(); - jsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json)); - } - }); - - if (isGeometryCollection) { - return L.GeoJSON.getFeature(this, { - geometries: jsons, - type: 'GeometryCollection' - }); - } - - return { - type: 'FeatureCollection', - features: jsons - }; - } -}); - -L.geoJson = function (geojson, options) { - return new L.GeoJSON(geojson, options); -}; - - -/* - * L.DomEvent contains functions for working with DOM events. - * Inspired by John Resig, Dean Edwards and YUI addEvent implementations. - */ - -var eventsKey = '_leaflet_events'; - -L.DomEvent = { - - on: function (obj, types, fn, context) { - - if (typeof types === 'object') { - for (var type in types) { - this._on(obj, type, types[type], fn); - } - } else { - types = L.Util.splitWords(types); - - for (var i = 0, len = types.length; i < len; i++) { - this._on(obj, types[i], fn, context); - } - } - - return this; - }, - - off: function (obj, types, fn, context) { - - if (typeof types === 'object') { - for (var type in types) { - this._off(obj, type, types[type], fn); - } - } else { - types = L.Util.splitWords(types); - - for (var i = 0, len = types.length; i < len; i++) { - this._off(obj, types[i], fn, context); - } - } - - return this; - }, - - _on: function (obj, type, fn, context) { - var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : ''); - - if (obj[eventsKey] && obj[eventsKey][id]) { return this; } - - var handler = function (e) { - return fn.call(context || obj, e || window.event); - }; - - var originalHandler = handler; - - if (L.Browser.pointer && type.indexOf('touch') === 0) { - this.addPointerListener(obj, type, handler, id); - - } else if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) { - this.addDoubleTapListener(obj, handler, id); - - } else if ('addEventListener' in obj) { - - if (type === 'mousewheel') { - obj.addEventListener('DOMMouseScroll', handler, false); - obj.addEventListener(type, handler, false); - - } else if ((type === 'mouseenter') || (type === 'mouseleave')) { - handler = function (e) { - e = e || window.event; - if (L.DomEvent._checkMouse(obj, e)) { - originalHandler(e); - } - }; - obj.addEventListener(type === 'mouseenter' ? 'mouseover' : 'mouseout', handler, false); - - } else { - if (type === 'click' && L.Browser.android) { - handler = function (e) { - return L.DomEvent._filterClick(e, originalHandler); - }; - } - obj.addEventListener(type, handler, false); - } - - } else if ('attachEvent' in obj) { - obj.attachEvent('on' + type, handler); - } - - obj[eventsKey] = obj[eventsKey] || {}; - obj[eventsKey][id] = handler; - - return this; - }, - - _off: function (obj, type, fn, context) { - - var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : ''), - handler = obj[eventsKey] && obj[eventsKey][id]; - - if (!handler) { return this; } - - if (L.Browser.pointer && type.indexOf('touch') === 0) { - this.removePointerListener(obj, type, id); - - } else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) { - this.removeDoubleTapListener(obj, id); - - } else if ('removeEventListener' in obj) { - - if (type === 'mousewheel') { - obj.removeEventListener('DOMMouseScroll', handler, false); - obj.removeEventListener(type, handler, false); - - } else { - obj.removeEventListener( - type === 'mouseenter' ? 'mouseover' : - type === 'mouseleave' ? 'mouseout' : type, handler, false); - } - - } else if ('detachEvent' in obj) { - obj.detachEvent('on' + type, handler); - } - - obj[eventsKey][id] = null; - - return this; - }, - - stopPropagation: function (e) { - - if (e.stopPropagation) { - e.stopPropagation(); - } else if (e.originalEvent) { // In case of Leaflet event. - e.originalEvent._stopped = true; - } else { - e.cancelBubble = true; - } - L.DomEvent._skipped(e); - - return this; - }, - - disableScrollPropagation: function (el) { - return L.DomEvent.on(el, 'mousewheel MozMousePixelScroll', L.DomEvent.stopPropagation); - }, - - disableClickPropagation: function (el) { - var stop = L.DomEvent.stopPropagation; - - L.DomEvent.on(el, L.Draggable.START.join(' '), stop); - - return L.DomEvent.on(el, { - click: L.DomEvent._fakeStop, - dblclick: stop - }); - }, - - preventDefault: function (e) { - - if (e.preventDefault) { - e.preventDefault(); - } else { - e.returnValue = false; - } - return this; - }, - - stop: function (e) { - return L.DomEvent - .preventDefault(e) - .stopPropagation(e); - }, - - getMousePosition: function (e, container) { - if (!container) { - return new L.Point(e.clientX, e.clientY); - } - - var rect = container.getBoundingClientRect(); - - return new L.Point( - e.clientX - rect.left - container.clientLeft, - e.clientY - rect.top - container.clientTop); - }, - - getWheelDelta: function (e) { - - var delta = 0; - - if (e.wheelDelta) { - delta = e.wheelDelta / 120; - } - if (e.detail) { - delta = -e.detail / 3; - } - return delta; - }, - - _skipEvents: {}, - - _fakeStop: function (e) { - // fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e) - L.DomEvent._skipEvents[e.type] = true; - }, - - _skipped: function (e) { - var skipped = this._skipEvents[e.type]; - // reset when checking, as it's only used in map container and propagates outside of the map - this._skipEvents[e.type] = false; - return skipped; - }, - - // check if element really left/entered the event target (for mouseenter/mouseleave) - _checkMouse: function (el, e) { - - var related = e.relatedTarget; - - if (!related) { return true; } - - try { - while (related && (related !== el)) { - related = related.parentNode; - } - } catch (err) { - return false; - } - return (related !== el); - }, - - // this is a horrible workaround for a bug in Android where a single touch triggers two click events - _filterClick: function (e, handler) { - var timeStamp = (e.timeStamp || e.originalEvent.timeStamp), - elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick); - - // are they closer together than 500ms yet more than 100ms? - // Android typically triggers them ~300ms apart while multiple listeners - // on the same event should be triggered far faster; - // or check if click is simulated on the element, and if it is, reject any non-simulated events - - if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) { - L.DomEvent.stop(e); - return; - } - L.DomEvent._lastClick = timeStamp; - - handler(e); - } -}; - -L.DomEvent.addListener = L.DomEvent.on; -L.DomEvent.removeListener = L.DomEvent.off; - - -/* - * L.Draggable allows you to add dragging capabilities to any element. Supports mobile devices too. - */ - -L.Draggable = L.Evented.extend({ - - statics: { - START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'], - END: { - mousedown: 'mouseup', - touchstart: 'touchend', - pointerdown: 'touchend', - MSPointerDown: 'touchend' - }, - MOVE: { - mousedown: 'mousemove', - touchstart: 'touchmove', - pointerdown: 'touchmove', - MSPointerDown: 'touchmove' - } - }, - - initialize: function (element, dragStartTarget, preventOutline) { - this._element = element; - this._dragStartTarget = dragStartTarget || element; - this._preventOutline = preventOutline; - }, - - enable: function () { - if (this._enabled) { return; } - - L.DomEvent.on(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this); - - this._enabled = true; - }, - - disable: function () { - if (!this._enabled) { return; } - - L.DomEvent.off(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this); - - this._enabled = false; - this._moved = false; - }, - - _onDown: function (e) { - this._moved = false; - - if (e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; } - - L.DomEvent.stopPropagation(e); - - if (this._preventOutline) { - L.DomUtil.preventOutline(this._element); - } - - if (L.DomUtil.hasClass(this._element, 'leaflet-zoom-anim')) { return; } - - L.DomUtil.disableImageDrag(); - L.DomUtil.disableTextSelection(); - - if (this._moving) { return; } - - this.fire('down'); - - var first = e.touches ? e.touches[0] : e; - - this._startPoint = new L.Point(first.clientX, first.clientY); - this._startPos = this._newPos = L.DomUtil.getPosition(this._element); - - L.DomEvent - .on(document, L.Draggable.MOVE[e.type], this._onMove, this) - .on(document, L.Draggable.END[e.type], this._onUp, this); - }, - - _onMove: function (e) { - if (e.touches && e.touches.length > 1) { - this._moved = true; - return; - } - - var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e), - newPoint = new L.Point(first.clientX, first.clientY), - offset = newPoint.subtract(this._startPoint); - - if (!offset.x && !offset.y) { return; } - if (L.Browser.touch && Math.abs(offset.x) + Math.abs(offset.y) < 3) { return; } - - L.DomEvent.preventDefault(e); - - if (!this._moved) { - this.fire('dragstart'); - - this._moved = true; - this._startPos = L.DomUtil.getPosition(this._element).subtract(offset); - - L.DomUtil.addClass(document.body, 'leaflet-dragging'); - - this._lastTarget = e.target || e.srcElement; - L.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target'); - } - - this._newPos = this._startPos.add(offset); - this._moving = true; - - L.Util.cancelAnimFrame(this._animRequest); - this._lastEvent = e; - this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true, this._dragStartTarget); - }, - - _updatePosition: function () { - var e = {originalEvent: this._lastEvent}; - this.fire('predrag', e); - L.DomUtil.setPosition(this._element, this._newPos); - this.fire('drag', e); - }, - - _onUp: function () { - L.DomUtil.removeClass(document.body, 'leaflet-dragging'); - - if (this._lastTarget) { - L.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target'); - this._lastTarget = null; - } - - for (var i in L.Draggable.MOVE) { - L.DomEvent - .off(document, L.Draggable.MOVE[i], this._onMove, this) - .off(document, L.Draggable.END[i], this._onUp, this); - } - - L.DomUtil.enableImageDrag(); - L.DomUtil.enableTextSelection(); - - if (this._moved && this._moving) { - // ensure drag is not fired after dragend - L.Util.cancelAnimFrame(this._animRequest); - - this.fire('dragend', { - distance: this._newPos.distanceTo(this._startPos) - }); - } - - this._moving = false; - } -}); - - -/* - L.Handler is a base class for handler classes that are used internally to inject - interaction features like dragging to classes like Map and Marker. -*/ - -L.Handler = L.Class.extend({ - initialize: function (map) { - this._map = map; - }, - - enable: function () { - if (this._enabled) { return; } - - this._enabled = true; - this.addHooks(); - }, - - disable: function () { - if (!this._enabled) { return; } - - this._enabled = false; - this.removeHooks(); - }, - - enabled: function () { - return !!this._enabled; - } -}); - - -/* - * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default. - */ - -L.Map.mergeOptions({ - dragging: true, - - inertia: !L.Browser.android23, - inertiaDeceleration: 3400, // px/s^2 - inertiaMaxSpeed: Infinity, // px/s - easeLinearity: 0.2, - - // TODO refactor, move to CRS - worldCopyJump: false -}); - -L.Map.Drag = L.Handler.extend({ - addHooks: function () { - if (!this._draggable) { - var map = this._map; - - this._draggable = new L.Draggable(map._mapPane, map._container); - - this._draggable.on({ - down: this._onDown, - dragstart: this._onDragStart, - drag: this._onDrag, - dragend: this._onDragEnd - }, this); - - this._draggable.on('predrag', this._onPreDragLimit, this); - if (map.options.worldCopyJump) { - this._draggable.on('predrag', this._onPreDragWrap, this); - map.on('zoomend', this._onZoomEnd, this); - - map.whenReady(this._onZoomEnd, this); - } - } - L.DomUtil.addClass(this._map._container, 'leaflet-grab'); - this._draggable.enable(); - }, - - removeHooks: function () { - L.DomUtil.removeClass(this._map._container, 'leaflet-grab'); - this._draggable.disable(); - }, - - moved: function () { - return this._draggable && this._draggable._moved; - }, - - _onDown: function () { - this._map.stop(); - }, - - _onDragStart: function () { - var map = this._map; - - if (this._map.options.maxBounds && this._map.options.maxBoundsViscosity) { - var bounds = L.latLngBounds(this._map.options.maxBounds); - - this._offsetLimit = L.bounds( - this._map.latLngToContainerPoint(bounds.getNorthWest()).multiplyBy(-1), - this._map.latLngToContainerPoint(bounds.getSouthEast()).multiplyBy(-1) - .add(this._map.getSize())); - - this._viscosity = Math.min(1.0, Math.max(0.0, this._map.options.maxBoundsViscosity)); - } else { - this._offsetLimit = null; - } - - map - .fire('movestart') - .fire('dragstart'); - - if (map.options.inertia) { - this._positions = []; - this._times = []; - } - }, - - _onDrag: function (e) { - if (this._map.options.inertia) { - var time = this._lastTime = +new Date(), - pos = this._lastPos = this._draggable._absPos || this._draggable._newPos; - - this._positions.push(pos); - this._times.push(time); - - if (time - this._times[0] > 50) { - this._positions.shift(); - this._times.shift(); - } - } - - this._map - .fire('move', e) - .fire('drag', e); - }, - - _onZoomEnd: function () { - var pxCenter = this._map.getSize().divideBy(2), - pxWorldCenter = this._map.latLngToLayerPoint([0, 0]); - - this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x; - this._worldWidth = this._map.getPixelWorldBounds().getSize().x; - }, - - _viscousLimit: function(value, threshold) { - return value - (value - threshold) * this._viscosity; - }, - - _onPreDragLimit: function () { - if (!this._viscosity || !this._offsetLimit) { return; } - - var offset = this._draggable._newPos.subtract(this._draggable._startPos); - - var limit = this._offsetLimit; - if (offset.x < limit.min.x) { offset.x = this._viscousLimit(offset.x, limit.min.x); } - if (offset.y < limit.min.y) { offset.y = this._viscousLimit(offset.y, limit.min.y); } - if (offset.x > limit.max.x) { offset.x = this._viscousLimit(offset.x, limit.max.x); } - if (offset.y > limit.max.y) { offset.y = this._viscousLimit(offset.y, limit.max.y); } - - this._draggable._newPos = this._draggable._startPos.add(offset); - }, - - _onPreDragWrap: function () { - // TODO refactor to be able to adjust map pane position after zoom - var worldWidth = this._worldWidth, - halfWidth = Math.round(worldWidth / 2), - dx = this._initialWorldOffset, - x = this._draggable._newPos.x, - newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx, - newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx, - newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2; - - this._draggable._absPos = this._draggable._newPos.clone(); - this._draggable._newPos.x = newX; - }, - - _onDragEnd: function (e) { - var map = this._map, - options = map.options, - - noInertia = !options.inertia || this._times.length < 2; - - map.fire('dragend', e); - - if (noInertia) { - map.fire('moveend'); - - } else { - - var direction = this._lastPos.subtract(this._positions[0]), - duration = (this._lastTime - this._times[0]) / 1000, - ease = options.easeLinearity, - - speedVector = direction.multiplyBy(ease / duration), - speed = speedVector.distanceTo([0, 0]), - - limitedSpeed = Math.min(options.inertiaMaxSpeed, speed), - limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed), - - decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease), - offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round(); - - if (!offset.x && !offset.y) { - map.fire('moveend'); - - } else { - offset = map._limitOffset(offset, map.options.maxBounds); - - L.Util.requestAnimFrame(function () { - map.panBy(offset, { - duration: decelerationDuration, - easeLinearity: ease, - noMoveStart: true, - animate: true - }); - }); - } - } - } -}); - -L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag); - - -/* - * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default. - */ - -L.Map.mergeOptions({ - doubleClickZoom: true -}); - -L.Map.DoubleClickZoom = L.Handler.extend({ - addHooks: function () { - this._map.on('dblclick', this._onDoubleClick, this); - }, - - removeHooks: function () { - this._map.off('dblclick', this._onDoubleClick, this); - }, - - _onDoubleClick: function (e) { - var map = this._map, - oldZoom = map.getZoom(), - zoom = e.originalEvent.shiftKey ? Math.ceil(oldZoom) - 1 : Math.floor(oldZoom) + 1; - - if (map.options.doubleClickZoom === 'center') { - map.setZoom(zoom); - } else { - map.setZoomAround(e.containerPoint, zoom); - } - } -}); - -L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom); - - -/* - * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map. - */ - -L.Map.mergeOptions({ - scrollWheelZoom: true, - wheelDebounceTime: 40 -}); - -L.Map.ScrollWheelZoom = L.Handler.extend({ - addHooks: function () { - L.DomEvent.on(this._map._container, { - mousewheel: this._onWheelScroll, - MozMousePixelScroll: L.DomEvent.preventDefault - }, this); - - this._delta = 0; - }, - - removeHooks: function () { - L.DomEvent.off(this._map._container, { - mousewheel: this._onWheelScroll, - MozMousePixelScroll: L.DomEvent.preventDefault - }, this); - }, - - _onWheelScroll: function (e) { - var delta = L.DomEvent.getWheelDelta(e); - var debounce = this._map.options.wheelDebounceTime; - - this._delta += delta; - this._lastMousePos = this._map.mouseEventToContainerPoint(e); - - if (!this._startTime) { - this._startTime = +new Date(); - } - - var left = Math.max(debounce - (+new Date() - this._startTime), 0); - - clearTimeout(this._timer); - this._timer = setTimeout(L.bind(this._performZoom, this), left); - - L.DomEvent.stop(e); - }, - - _performZoom: function () { - var map = this._map, - delta = this._delta, - zoom = map.getZoom(); - - map.stop(); // stop panning and fly animations if any - - delta = delta > 0 ? Math.ceil(delta) : Math.floor(delta); - delta = Math.max(Math.min(delta, 4), -4); - delta = map._limitZoom(zoom + delta) - zoom; - - this._delta = 0; - this._startTime = null; - - if (!delta) { return; } - - if (map.options.scrollWheelZoom === 'center') { - map.setZoom(zoom + delta); - } else { - map.setZoomAround(this._lastMousePos, zoom + delta); - } - } -}); - -L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom); - - -/* - * Extends the event handling code with double tap support for mobile browsers. - */ - -L.extend(L.DomEvent, { - - _touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart', - _touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend', - - // inspired by Zepto touch code by Thomas Fuchs - addDoubleTapListener: function (obj, handler, id) { - var last, touch, - doubleTap = false, - delay = 250; - - function onTouchStart(e) { - var count; - - if (L.Browser.pointer) { - count = L.DomEvent._pointersCount; - } else { - count = e.touches.length; - } - - if (count > 1) { return; } - - var now = Date.now(), - delta = now - (last || now); - - touch = e.touches ? e.touches[0] : e; - doubleTap = (delta > 0 && delta <= delay); - last = now; - } - - function onTouchEnd() { - if (doubleTap) { - if (L.Browser.pointer) { - // work around .type being readonly with MSPointer* events - var newTouch = {}, - prop, i; - - for (i in touch) { - prop = touch[i]; - newTouch[i] = prop && prop.bind ? prop.bind(touch) : prop; - } - touch = newTouch; - } - touch.type = 'dblclick'; - handler(touch); - last = null; - } - } - - var pre = '_leaflet_', - touchstart = this._touchstart, - touchend = this._touchend; - - obj[pre + touchstart + id] = onTouchStart; - obj[pre + touchend + id] = onTouchEnd; - - obj.addEventListener(touchstart, onTouchStart, false); - obj.addEventListener(touchend, onTouchEnd, false); - return this; - }, - - removeDoubleTapListener: function (obj, id) { - var pre = '_leaflet_', - touchend = obj[pre + this._touchend + id]; - - obj.removeEventListener(this._touchstart, obj[pre + this._touchstart + id], false); - obj.removeEventListener(this._touchend, touchend, false); - - return this; - } -}); - - -/* - * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices. - */ - -L.extend(L.DomEvent, { - - POINTER_DOWN: L.Browser.msPointer ? 'MSPointerDown' : 'pointerdown', - POINTER_MOVE: L.Browser.msPointer ? 'MSPointerMove' : 'pointermove', - POINTER_UP: L.Browser.msPointer ? 'MSPointerUp' : 'pointerup', - POINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel', - - _pointers: {}, - _pointersCount: 0, - - // Provides a touch events wrapper for (ms)pointer events. - // ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890 - - addPointerListener: function (obj, type, handler, id) { - - if (type === 'touchstart') { - this._addPointerStart(obj, handler, id); - - } else if (type === 'touchmove') { - this._addPointerMove(obj, handler, id); - - } else if (type === 'touchend') { - this._addPointerEnd(obj, handler, id); - } - - return this; - }, - - removePointerListener: function (obj, type, id) { - var handler = obj['_leaflet_' + type + id]; - - if (type === 'touchstart') { - obj.removeEventListener(this.POINTER_DOWN, handler, false); - - } else if (type === 'touchmove') { - obj.removeEventListener(this.POINTER_MOVE, handler, false); - - } else if (type === 'touchend') { - obj.removeEventListener(this.POINTER_UP, handler, false); - obj.removeEventListener(this.POINTER_CANCEL, handler, false); - } - - return this; - }, - - _addPointerStart: function (obj, handler, id) { - var onDown = L.bind(function (e) { - L.DomEvent.preventDefault(e); - - this._handlePointer(e, handler); - }, this); - - obj['_leaflet_touchstart' + id] = onDown; - obj.addEventListener(this.POINTER_DOWN, onDown, false); - - // need to keep track of what pointers and how many are active to provide e.touches emulation - if (!this._pointerDocListener) { - var pointerUp = L.bind(this._globalPointerUp, this); - - // we listen documentElement as any drags that end by moving the touch off the screen get fired there - document.documentElement.addEventListener(this.POINTER_DOWN, L.bind(this._globalPointerDown, this), true); - document.documentElement.addEventListener(this.POINTER_MOVE, L.bind(this._globalPointerMove, this), true); - document.documentElement.addEventListener(this.POINTER_UP, pointerUp, true); - document.documentElement.addEventListener(this.POINTER_CANCEL, pointerUp, true); - - this._pointerDocListener = true; - } - }, - - _globalPointerDown: function (e) { - this._pointers[e.pointerId] = e; - this._pointersCount++; - }, - - _globalPointerMove: function (e) { - if (this._pointers[e.pointerId]) { - this._pointers[e.pointerId] = e; - } - }, - - _globalPointerUp: function (e) { - delete this._pointers[e.pointerId]; - this._pointersCount--; - }, - - _handlePointer: function (e, handler) { - e.touches = []; - for (var i in this._pointers) { - e.touches.push(this._pointers[i]); - } - e.changedTouches = [e]; - - handler(e); - }, - - _addPointerMove: function (obj, handler, id) { - var onMove = L.bind(function (e) { - // don't fire touch moves when mouse isn't down - if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; } - - this._handlePointer(e, handler); - }, this); - - obj['_leaflet_touchmove' + id] = onMove; - obj.addEventListener(this.POINTER_MOVE, onMove, false); - }, - - _addPointerEnd: function (obj, handler, id) { - var onUp = L.bind(function (e) { - this._handlePointer(e, handler); - }, this); - - obj['_leaflet_touchend' + id] = onUp; - obj.addEventListener(this.POINTER_UP, onUp, false); - obj.addEventListener(this.POINTER_CANCEL, onUp, false); - } -}); - - -/* - * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers. - */ - -L.Map.mergeOptions({ - touchZoom: L.Browser.touch && !L.Browser.android23, - bounceAtZoomLimits: true -}); - -L.Map.TouchZoom = L.Handler.extend({ - addHooks: function () { - L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this); - }, - - removeHooks: function () { - L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this); - }, - - _onTouchStart: function (e) { - var map = this._map; - - if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; } - - var p1 = map.mouseEventToContainerPoint(e.touches[0]), - p2 = map.mouseEventToContainerPoint(e.touches[1]); - - this._centerPoint = map.getSize()._divideBy(2); - this._startLatLng = map.containerPointToLatLng(this._centerPoint); - if (map.options.touchZoom !== 'center') { - this._pinchStartLatLng = map.containerPointToLatLng(p1.add(p2)._divideBy(2)); - } - - this._startDist = p1.distanceTo(p2); - this._startZoom = map.getZoom(); - - this._moved = false; - this._zooming = true; - - map.stop(); - - L.DomEvent - .on(document, 'touchmove', this._onTouchMove, this) - .on(document, 'touchend', this._onTouchEnd, this); - - L.DomEvent.preventDefault(e); - }, - - _onTouchMove: function (e) { - if (!e.touches || e.touches.length !== 2 || !this._zooming) { return; } - - var map = this._map, - p1 = map.mouseEventToContainerPoint(e.touches[0]), - p2 = map.mouseEventToContainerPoint(e.touches[1]), - scale = p1.distanceTo(p2) / this._startDist; - - - this._zoom = map.getScaleZoom(scale, this._startZoom); - - if (map.options.touchZoom === 'center') { - this._center = this._startLatLng; - if (scale === 1) { return; } - } else { - // Get delta from pinch to center, so centerLatLng is delta applied to initial pinchLatLng - var delta = p1._add(p2)._divideBy(2)._subtract(this._centerPoint); - if (scale === 1 && delta.x === 0 && delta.y === 0) { return; } - this._center = map.unproject(map.project(this._pinchStartLatLng).subtract(delta)); - } - - if (!map.options.bounceAtZoomLimits) { - if ((this._zoom <= map.getMinZoom() && scale < 1) || - (this._zoom >= map.getMaxZoom() && scale > 1)) { return; } - } - - if (!this._moved) { - map._moveStart(true); - this._moved = true; - } - - L.Util.cancelAnimFrame(this._animRequest); - - var moveFn = L.bind(map._move, map, this._center, this._zoom, {pinch: true, round: false}); - this._animRequest = L.Util.requestAnimFrame(moveFn, this, true, map._container); - - L.DomEvent.preventDefault(e); - }, - - _onTouchEnd: function () { - if (!this._moved || !this._zooming) { - this._zooming = false; - return; - } - - this._zooming = false; - L.Util.cancelAnimFrame(this._animRequest); - - L.DomEvent - .off(document, 'touchmove', this._onTouchMove) - .off(document, 'touchend', this._onTouchEnd); - - var zoom = this._zoom; - zoom = this._map._limitZoom(zoom - this._startZoom > 0 ? Math.ceil(zoom) : Math.floor(zoom)); - - - this._map._animateZoom(this._center, zoom, true, true); - } -}); - -L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom); - - -/* - * L.Map.Tap is used to enable mobile hacks like quick taps and long hold. - */ - -L.Map.mergeOptions({ - tap: true, - tapTolerance: 15 -}); - -L.Map.Tap = L.Handler.extend({ - addHooks: function () { - L.DomEvent.on(this._map._container, 'touchstart', this._onDown, this); - }, - - removeHooks: function () { - L.DomEvent.off(this._map._container, 'touchstart', this._onDown, this); - }, - - _onDown: function (e) { - if (!e.touches) { return; } - - L.DomEvent.preventDefault(e); - - this._fireClick = true; - - // don't simulate click or track longpress if more than 1 touch - if (e.touches.length > 1) { - this._fireClick = false; - clearTimeout(this._holdTimeout); - return; - } - - var first = e.touches[0], - el = first.target; - - this._startPos = this._newPos = new L.Point(first.clientX, first.clientY); - - // if touching a link, highlight it - if (el.tagName && el.tagName.toLowerCase() === 'a') { - L.DomUtil.addClass(el, 'leaflet-active'); - } - - // simulate long hold but setting a timeout - this._holdTimeout = setTimeout(L.bind(function () { - if (this._isTapValid()) { - this._fireClick = false; - this._onUp(); - this._simulateEvent('contextmenu', first); - } - }, this), 1000); - - this._simulateEvent('mousedown', first); - - L.DomEvent.on(document, { - touchmove: this._onMove, - touchend: this._onUp - }, this); - }, - - _onUp: function (e) { - clearTimeout(this._holdTimeout); - - L.DomEvent.off(document, { - touchmove: this._onMove, - touchend: this._onUp - }, this); - - if (this._fireClick && e && e.changedTouches) { - - var first = e.changedTouches[0], - el = first.target; - - if (el && el.tagName && el.tagName.toLowerCase() === 'a') { - L.DomUtil.removeClass(el, 'leaflet-active'); - } - - this._simulateEvent('mouseup', first); - - // simulate click if the touch didn't move too much - if (this._isTapValid()) { - this._simulateEvent('click', first); - } - } - }, - - _isTapValid: function () { - return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance; - }, - - _onMove: function (e) { - var first = e.touches[0]; - this._newPos = new L.Point(first.clientX, first.clientY); - }, - - _simulateEvent: function (type, e) { - var simulatedEvent = document.createEvent('MouseEvents'); - - simulatedEvent._simulated = true; - e.target._simulatedClick = true; - - simulatedEvent.initMouseEvent( - type, true, true, window, 1, - e.screenX, e.screenY, - e.clientX, e.clientY, - false, false, false, false, 0, null); - - e.target.dispatchEvent(simulatedEvent); - } -}); - -if (L.Browser.touch && !L.Browser.pointer) { - L.Map.addInitHook('addHandler', 'tap', L.Map.Tap); -} - - -/* - * L.Handler.ShiftDragZoom is used to add shift-drag zoom interaction to the map - * (zoom to a selected bounding box), enabled by default. - */ - -L.Map.mergeOptions({ - boxZoom: true -}); - -L.Map.BoxZoom = L.Handler.extend({ - initialize: function (map) { - this._map = map; - this._container = map._container; - this._pane = map._panes.overlayPane; - }, - - addHooks: function () { - L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this); - }, - - removeHooks: function () { - L.DomEvent.off(this._container, 'mousedown', this._onMouseDown, this); - }, - - moved: function () { - return this._moved; - }, - - _onMouseDown: function (e) { - if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; } - - this._moved = false; - - L.DomUtil.disableTextSelection(); - L.DomUtil.disableImageDrag(); - - this._startPoint = this._map.mouseEventToContainerPoint(e); - - L.DomEvent.on(document, { - contextmenu: L.DomEvent.stop, - mousemove: this._onMouseMove, - mouseup: this._onMouseUp, - keydown: this._onKeyDown - }, this); - }, - - _onMouseMove: function (e) { - if (!this._moved) { - this._moved = true; - - this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._container); - L.DomUtil.addClass(this._container, 'leaflet-crosshair'); - - this._map.fire('boxzoomstart'); - } - - this._point = this._map.mouseEventToContainerPoint(e); - - var bounds = new L.Bounds(this._point, this._startPoint), - size = bounds.getSize(); - - L.DomUtil.setPosition(this._box, bounds.min); - - this._box.style.width = size.x + 'px'; - this._box.style.height = size.y + 'px'; - }, - - _finish: function () { - if (this._moved) { - L.DomUtil.remove(this._box); - L.DomUtil.removeClass(this._container, 'leaflet-crosshair'); - } - - L.DomUtil.enableTextSelection(); - L.DomUtil.enableImageDrag(); - - L.DomEvent.off(document, { - contextmenu: L.DomEvent.stop, - mousemove: this._onMouseMove, - mouseup: this._onMouseUp, - keydown: this._onKeyDown - }, this); - }, - - _onMouseUp: function (e) { - if ((e.which !== 1) && (e.button !== 1)) { return; } - - this._finish(); - - if (!this._moved) { return; } - - var bounds = new L.LatLngBounds( - this._map.containerPointToLatLng(this._startPoint), - this._map.containerPointToLatLng(this._point)); - - this._map - .fitBounds(bounds) - .fire('boxzoomend', {boxZoomBounds: bounds}); - }, - - _onKeyDown: function (e) { - if (e.keyCode === 27) { - this._finish(); - } - } -}); - -L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom); - - -/* - * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default. - */ - -L.Map.mergeOptions({ - keyboard: true, - keyboardPanOffset: 80, - keyboardZoomOffset: 1 -}); - -L.Map.Keyboard = L.Handler.extend({ - - keyCodes: { - left: [37], - right: [39], - down: [40], - up: [38], - zoomIn: [187, 107, 61, 171], - zoomOut: [189, 109, 54, 173] - }, - - initialize: function (map) { - this._map = map; - - this._setPanOffset(map.options.keyboardPanOffset); - this._setZoomOffset(map.options.keyboardZoomOffset); - }, - - addHooks: function () { - var container = this._map._container; - - // make the container focusable by tabbing - if (container.tabIndex === -1) { - container.tabIndex = '0'; - } - - L.DomEvent.on(container, { - focus: this._onFocus, - blur: this._onBlur, - mousedown: this._onMouseDown - }, this); - - this._map.on({ - focus: this._addHooks, - blur: this._removeHooks - }, this); - }, - - removeHooks: function () { - this._removeHooks(); - - L.DomEvent.off(this._map._container, { - focus: this._onFocus, - blur: this._onBlur, - mousedown: this._onMouseDown - }, this); - - this._map.off({ - focus: this._addHooks, - blur: this._removeHooks - }, this); - }, - - _onMouseDown: function () { - if (this._focused) { return; } - - var body = document.body, - docEl = document.documentElement, - top = body.scrollTop || docEl.scrollTop, - left = body.scrollLeft || docEl.scrollLeft; - - this._map._container.focus(); - - window.scrollTo(left, top); - }, - - _onFocus: function () { - this._focused = true; - this._map.fire('focus'); - }, - - _onBlur: function () { - this._focused = false; - this._map.fire('blur'); - }, - - _setPanOffset: function (pan) { - var keys = this._panKeys = {}, - codes = this.keyCodes, - i, len; - - for (i = 0, len = codes.left.length; i < len; i++) { - keys[codes.left[i]] = [-1 * pan, 0]; - } - for (i = 0, len = codes.right.length; i < len; i++) { - keys[codes.right[i]] = [pan, 0]; - } - for (i = 0, len = codes.down.length; i < len; i++) { - keys[codes.down[i]] = [0, pan]; - } - for (i = 0, len = codes.up.length; i < len; i++) { - keys[codes.up[i]] = [0, -1 * pan]; - } - }, - - _setZoomOffset: function (zoom) { - var keys = this._zoomKeys = {}, - codes = this.keyCodes, - i, len; - - for (i = 0, len = codes.zoomIn.length; i < len; i++) { - keys[codes.zoomIn[i]] = zoom; - } - for (i = 0, len = codes.zoomOut.length; i < len; i++) { - keys[codes.zoomOut[i]] = -zoom; - } - }, - - _addHooks: function () { - L.DomEvent.on(document, 'keydown', this._onKeyDown, this); - }, - - _removeHooks: function () { - L.DomEvent.off(document, 'keydown', this._onKeyDown, this); - }, - - _onKeyDown: function (e) { - if (e.altKey || e.ctrlKey || e.metaKey) { return; } - - var key = e.keyCode, - map = this._map; - - if (key in this._panKeys) { - - if (map._panAnim && map._panAnim._inProgress) { return; } - - map.panBy(this._panKeys[key]); - - if (map.options.maxBounds) { - map.panInsideBounds(map.options.maxBounds); - } - - } else if (key in this._zoomKeys) { - map.setZoom(map.getZoom() + (e.shiftKey ? 3 : 1) * this._zoomKeys[key]); - - } else if (key === 27) { - map.closePopup(); - - } else { - return; - } - - L.DomEvent.stop(e); - } -}); - -L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard); - - -/* - * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable. - */ - -L.Handler.MarkerDrag = L.Handler.extend({ - initialize: function (marker) { - this._marker = marker; - }, - - addHooks: function () { - var icon = this._marker._icon; - - if (!this._draggable) { - this._draggable = new L.Draggable(icon, icon, true); - } - - this._draggable.on({ - dragstart: this._onDragStart, - drag: this._onDrag, - dragend: this._onDragEnd - }, this).enable(); - - L.DomUtil.addClass(icon, 'leaflet-marker-draggable'); - }, - - removeHooks: function () { - this._draggable.off({ - dragstart: this._onDragStart, - drag: this._onDrag, - dragend: this._onDragEnd - }, this).disable(); - - if (this._marker._icon) { - L.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable'); - } - }, - - moved: function () { - return this._draggable && this._draggable._moved; - }, - - _onDragStart: function () { - this._marker - .closePopup() - .fire('movestart') - .fire('dragstart'); - }, - - _onDrag: function (e) { - var marker = this._marker, - shadow = marker._shadow, - iconPos = L.DomUtil.getPosition(marker._icon), - latlng = marker._map.layerPointToLatLng(iconPos); - - // update shadow position - if (shadow) { - L.DomUtil.setPosition(shadow, iconPos); - } - - marker._latlng = latlng; - e.latlng = latlng; - - marker - .fire('move', e) - .fire('drag', e); - }, - - _onDragEnd: function (e) { - this._marker - .fire('moveend') - .fire('dragend', e); - } -}); - - -/* - * L.Control is a base class for implementing map controls. Handles positioning. - * All other controls extend from this class. - */ - -L.Control = L.Class.extend({ - options: { - position: 'topright' - }, - - initialize: function (options) { - L.setOptions(this, options); - }, - - getPosition: function () { - return this.options.position; - }, - - setPosition: function (position) { - var map = this._map; - - if (map) { - map.removeControl(this); - } - - this.options.position = position; - - if (map) { - map.addControl(this); - } - - return this; - }, - - getContainer: function () { - return this._container; - }, - - addTo: function (map) { - this.remove(); - this._map = map; - - var container = this._container = this.onAdd(map), - pos = this.getPosition(), - corner = map._controlCorners[pos]; - - L.DomUtil.addClass(container, 'leaflet-control'); - - if (pos.indexOf('bottom') !== -1) { - corner.insertBefore(container, corner.firstChild); - } else { - corner.appendChild(container); - } - - return this; - }, - - remove: function () { - if (!this._map) { - return this; - } - - L.DomUtil.remove(this._container); - - if (this.onRemove) { - this.onRemove(this._map); - } - - this._map = null; - - return this; - }, - - _refocusOnMap: function (e) { - // if map exists and event is not a keyboard event - if (this._map && e && e.screenX > 0 && e.screenY > 0) { - this._map.getContainer().focus(); - } - } -}); - -L.control = function (options) { - return new L.Control(options); -}; - - -// adds control-related methods to L.Map - -L.Map.include({ - addControl: function (control) { - control.addTo(this); - return this; - }, - - removeControl: function (control) { - control.remove(); - return this; - }, - - _initControlPos: function () { - var corners = this._controlCorners = {}, - l = 'leaflet-', - container = this._controlContainer = - L.DomUtil.create('div', l + 'control-container', this._container); - - function createCorner(vSide, hSide) { - var className = l + vSide + ' ' + l + hSide; - - corners[vSide + hSide] = L.DomUtil.create('div', className, container); - } - - createCorner('top', 'left'); - createCorner('top', 'right'); - createCorner('bottom', 'left'); - createCorner('bottom', 'right'); - }, - - _clearControlPos: function () { - L.DomUtil.remove(this._controlContainer); - } -}); - - -/* - * L.Control.Zoom is used for the default zoom buttons on the map. - */ - -L.Control.Zoom = L.Control.extend({ - options: { - position: 'topleft', - zoomInText: '+', - zoomInTitle: 'Zoom in', - zoomOutText: '-', - zoomOutTitle: 'Zoom out' - }, - - onAdd: function (map) { - var zoomName = 'leaflet-control-zoom', - container = L.DomUtil.create('div', zoomName + ' leaflet-bar'), - options = this.options; - - this._zoomInButton = this._createButton(options.zoomInText, options.zoomInTitle, - zoomName + '-in', container, this._zoomIn); - this._zoomOutButton = this._createButton(options.zoomOutText, options.zoomOutTitle, - zoomName + '-out', container, this._zoomOut); - - this._updateDisabled(); - map.on('zoomend zoomlevelschange', this._updateDisabled, this); - - return container; - }, - - onRemove: function (map) { - map.off('zoomend zoomlevelschange', this._updateDisabled, this); - }, - - disable: function () { - this._disabled = true; - this._updateDisabled(); - return this; - }, - - enable: function () { - this._disabled = false; - this._updateDisabled(); - return this; - }, - - _zoomIn: function (e) { - if (!this._disabled) { - this._map.zoomIn(e.shiftKey ? 3 : 1); - } - }, - - _zoomOut: function (e) { - if (!this._disabled) { - this._map.zoomOut(e.shiftKey ? 3 : 1); - } - }, - - _createButton: function (html, title, className, container, fn) { - var link = L.DomUtil.create('a', className, container); - link.innerHTML = html; - link.href = '#'; - link.title = title; - - L.DomEvent - .on(link, 'mousedown dblclick', L.DomEvent.stopPropagation) - .on(link, 'click', L.DomEvent.stop) - .on(link, 'click', fn, this) - .on(link, 'click', this._refocusOnMap, this); - - return link; - }, - - _updateDisabled: function () { - var map = this._map, - className = 'leaflet-disabled'; - - L.DomUtil.removeClass(this._zoomInButton, className); - L.DomUtil.removeClass(this._zoomOutButton, className); - - if (this._disabled || map._zoom === map.getMinZoom()) { - L.DomUtil.addClass(this._zoomOutButton, className); - } - if (this._disabled || map._zoom === map.getMaxZoom()) { - L.DomUtil.addClass(this._zoomInButton, className); - } - } -}); - -L.Map.mergeOptions({ - zoomControl: true -}); - -L.Map.addInitHook(function () { - if (this.options.zoomControl) { - this.zoomControl = new L.Control.Zoom(); - this.addControl(this.zoomControl); - } -}); - -L.control.zoom = function (options) { - return new L.Control.Zoom(options); -}; - - -/* - * L.Control.Attribution is used for displaying attribution on the map (added by default). - */ - -L.Control.Attribution = L.Control.extend({ - options: { - position: 'bottomright', - prefix: 'Leaflet' - }, - - initialize: function (options) { - L.setOptions(this, options); - - this._attributions = {}; - }, - - onAdd: function (map) { - this._container = L.DomUtil.create('div', 'leaflet-control-attribution'); - if (L.DomEvent) { - L.DomEvent.disableClickPropagation(this._container); - } - - // TODO ugly, refactor - for (var i in map._layers) { - if (map._layers[i].getAttribution) { - this.addAttribution(map._layers[i].getAttribution()); - } - } - - this._update(); - - return this._container; - }, - - setPrefix: function (prefix) { - this.options.prefix = prefix; - this._update(); - return this; - }, - - addAttribution: function (text) { - if (!text) { return this; } - - if (!this._attributions[text]) { - this._attributions[text] = 0; - } - this._attributions[text]++; - - this._update(); - - return this; - }, - - removeAttribution: function (text) { - if (!text) { return this; } - - if (this._attributions[text]) { - this._attributions[text]--; - this._update(); - } - - return this; - }, - - _update: function () { - if (!this._map) { return; } - - var attribs = []; - - for (var i in this._attributions) { - if (this._attributions[i]) { - attribs.push(i); - } - } - - var prefixAndAttribs = []; - - if (this.options.prefix) { - prefixAndAttribs.push(this.options.prefix); - } - if (attribs.length) { - prefixAndAttribs.push(attribs.join(', ')); - } - - this._container.innerHTML = prefixAndAttribs.join(' | '); - } -}); - -L.Map.mergeOptions({ - attributionControl: true -}); - -L.Map.addInitHook(function () { - if (this.options.attributionControl) { - this.attributionControl = (new L.Control.Attribution()).addTo(this); - } -}); - -L.control.attribution = function (options) { - return new L.Control.Attribution(options); -}; - - -/* - * L.Control.Scale is used for displaying metric/imperial scale on the map. - */ - -L.Control.Scale = L.Control.extend({ - options: { - position: 'bottomleft', - maxWidth: 100, - metric: true, - imperial: true - // updateWhenIdle: false - }, - - onAdd: function (map) { - var className = 'leaflet-control-scale', - container = L.DomUtil.create('div', className), - options = this.options; - - this._addScales(options, className + '-line', container); - - map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this); - map.whenReady(this._update, this); - - return container; - }, - - onRemove: function (map) { - map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this); - }, - - _addScales: function (options, className, container) { - if (options.metric) { - this._mScale = L.DomUtil.create('div', className, container); - } - if (options.imperial) { - this._iScale = L.DomUtil.create('div', className, container); - } - }, - - _update: function () { - var map = this._map, - y = map.getSize().y / 2; - - var maxMeters = map.distance( - map.containerPointToLatLng([0, y]), - map.containerPointToLatLng([this.options.maxWidth, y])); - - this._updateScales(maxMeters); - }, - - _updateScales: function (maxMeters) { - if (this.options.metric && maxMeters) { - this._updateMetric(maxMeters); - } - if (this.options.imperial && maxMeters) { - this._updateImperial(maxMeters); - } - }, - - _updateMetric: function (maxMeters) { - var meters = this._getRoundNum(maxMeters), - label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km'; - - this._updateScale(this._mScale, label, meters / maxMeters); - }, - - _updateImperial: function (maxMeters) { - var maxFeet = maxMeters * 3.2808399, - maxMiles, miles, feet; - - if (maxFeet > 5280) { - maxMiles = maxFeet / 5280; - miles = this._getRoundNum(maxMiles); - this._updateScale(this._iScale, miles + ' mi', miles / maxMiles); - - } else { - feet = this._getRoundNum(maxFeet); - this._updateScale(this._iScale, feet + ' ft', feet / maxFeet); - } - }, - - _updateScale: function (scale, text, ratio) { - scale.style.width = Math.round(this.options.maxWidth * ratio) + 'px'; - scale.innerHTML = text; - }, - - _getRoundNum: function (num) { - var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1), - d = num / pow10; - - d = d >= 10 ? 10 : - d >= 5 ? 5 : - d >= 3 ? 3 : - d >= 2 ? 2 : 1; - - return pow10 * d; - } -}); - -L.control.scale = function (options) { - return new L.Control.Scale(options); -}; - - -/* - * L.Control.Layers is a control to allow users to switch between different layers on the map. - */ - -L.Control.Layers = L.Control.extend({ - options: { - collapsed: true, - position: 'topright', - autoZIndex: true, - hideSingleBase: false - }, - - initialize: function (baseLayers, overlays, options) { - L.setOptions(this, options); - - this._layers = {}; - this._lastZIndex = 0; - this._handlingClick = false; - - for (var i in baseLayers) { - this._addLayer(baseLayers[i], i); - } - - for (i in overlays) { - this._addLayer(overlays[i], i, true); - } - }, - - onAdd: function () { - this._initLayout(); - this._update(); - - return this._container; - }, - - addBaseLayer: function (layer, name) { - this._addLayer(layer, name); - return this._update(); - }, - - addOverlay: function (layer, name) { - this._addLayer(layer, name, true); - return this._update(); - }, - - removeLayer: function (layer) { - layer.off('add remove', this._onLayerChange, this); - - delete this._layers[L.stamp(layer)]; - return this._update(); - }, - - _initLayout: function () { - var className = 'leaflet-control-layers', - container = this._container = L.DomUtil.create('div', className); - - // makes this work on IE touch devices by stopping it from firing a mouseout event when the touch is released - container.setAttribute('aria-haspopup', true); - - if (!L.Browser.touch) { - L.DomEvent - .disableClickPropagation(container) - .disableScrollPropagation(container); - } else { - L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation); - } - - var form = this._form = L.DomUtil.create('form', className + '-list'); - - if (this.options.collapsed) { - if (!L.Browser.android) { - L.DomEvent.on(container, { - mouseenter: this._expand, - mouseleave: this._collapse - }, this); - } - - var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container); - link.href = '#'; - link.title = 'Layers'; - - if (L.Browser.touch) { - L.DomEvent - .on(link, 'click', L.DomEvent.stop) - .on(link, 'click', this._expand, this); - } else { - L.DomEvent.on(link, 'focus', this._expand, this); - } - - // work around for Firefox Android issue https://github.com/Leaflet/Leaflet/issues/2033 - L.DomEvent.on(form, 'click', function () { - setTimeout(L.bind(this._onInputClick, this), 0); - }, this); - - this._map.on('click', this._collapse, this); - // TODO keyboard accessibility - } else { - this._expand(); - } - - this._baseLayersList = L.DomUtil.create('div', className + '-base', form); - this._separator = L.DomUtil.create('div', className + '-separator', form); - this._overlaysList = L.DomUtil.create('div', className + '-overlays', form); - - container.appendChild(form); - }, - - _addLayer: function (layer, name, overlay) { - layer.on('add remove', this._onLayerChange, this); - - var id = L.stamp(layer); - - this._layers[id] = { - layer: layer, - name: name, - overlay: overlay - }; - - if (this.options.autoZIndex && layer.setZIndex) { - this._lastZIndex++; - layer.setZIndex(this._lastZIndex); - } - }, - - _update: function () { - if (!this._container) { return this; } - - L.DomUtil.empty(this._baseLayersList); - L.DomUtil.empty(this._overlaysList); - - var baseLayersPresent, overlaysPresent, i, obj, baseLayersCount = 0; - - for (i in this._layers) { - obj = this._layers[i]; - this._addItem(obj); - overlaysPresent = overlaysPresent || obj.overlay; - baseLayersPresent = baseLayersPresent || !obj.overlay; - baseLayersCount += !obj.overlay ? 1 : 0; - } - - // Hide base layers section if there's only one layer. - if (this.options.hideSingleBase) { - baseLayersPresent = baseLayersPresent && baseLayersCount > 1; - this._baseLayersList.style.display = baseLayersPresent ? '' : 'none'; - } - - this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none'; - - return this; - }, - - _onLayerChange: function (e) { - if (!this._handlingClick) { - this._update(); - } - - var overlay = this._layers[L.stamp(e.target)].overlay; - - var type = overlay ? - (e.type === 'add' ? 'overlayadd' : 'overlayremove') : - (e.type === 'add' ? 'baselayerchange' : null); - - if (type) { - this._map.fire(type, e.target); - } - }, - - // IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe) - _createRadioElement: function (name, checked) { - - var radioHtml = ''; - - var radioFragment = document.createElement('div'); - radioFragment.innerHTML = radioHtml; - - return radioFragment.firstChild; - }, - - _addItem: function (obj) { - var label = document.createElement('label'), - checked = this._map.hasLayer(obj.layer), - input; - - if (obj.overlay) { - input = document.createElement('input'); - input.type = 'checkbox'; - input.className = 'leaflet-control-layers-selector'; - input.defaultChecked = checked; - } else { - input = this._createRadioElement('leaflet-base-layers', checked); - } - - input.layerId = L.stamp(obj.layer); - - L.DomEvent.on(input, 'click', this._onInputClick, this); - - var name = document.createElement('span'); - name.innerHTML = ' ' + obj.name; - - // Helps from preventing layer control flicker when checkboxes are disabled - // https://github.com/Leaflet/Leaflet/issues/2771 - var holder = document.createElement('div'); - - label.appendChild(holder); - holder.appendChild(input); - holder.appendChild(name); - - var container = obj.overlay ? this._overlaysList : this._baseLayersList; - container.appendChild(label); - - return label; - }, - - _onInputClick: function () { - var inputs = this._form.getElementsByTagName('input'), - input, layer, hasLayer; - var addedLayers = [], - removedLayers = []; - - this._handlingClick = true; - - for (var i = 0, len = inputs.length; i < len; i++) { - input = inputs[i]; - layer = this._layers[input.layerId].layer; - hasLayer = this._map.hasLayer(layer); - - if (input.checked && !hasLayer) { - addedLayers.push(layer); - - } else if (!input.checked && hasLayer) { - removedLayers.push(layer); - } - } - - // Bugfix issue 2318: Should remove all old layers before readding new ones - for (i = 0; i < removedLayers.length; i++) { - this._map.removeLayer(removedLayers[i]); - } - for (i = 0; i < addedLayers.length; i++) { - this._map.addLayer(addedLayers[i]); - } - - this._handlingClick = false; - - this._refocusOnMap(); - }, - - _expand: function () { - L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded'); - var acceptableHeight = this._map._size.y - (this._container.offsetTop * 4); - if (acceptableHeight < this._form.clientHeight) - { - L.DomUtil.addClass(this._form, 'leaflet-control-layers-scrollbar'); - this._form.style.height = acceptableHeight + 'px'; - } - }, - - _collapse: function () { - L.DomUtil.removeClass(this._container, 'leaflet-control-layers-expanded'); - } -}); - -L.control.layers = function (baseLayers, overlays, options) { - return new L.Control.Layers(baseLayers, overlays, options); -}; - - -/* - * L.PosAnimation powers Leaflet pan animations internally. - */ - -L.PosAnimation = L.Evented.extend({ - - run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number]) - this.stop(); - - this._el = el; - this._inProgress = true; - this._duration = duration || 0.25; - this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2); - - this._startPos = L.DomUtil.getPosition(el); - this._offset = newPos.subtract(this._startPos); - this._startTime = +new Date(); - - this.fire('start'); - - this._animate(); - }, - - stop: function () { - if (!this._inProgress) { return; } - - this._step(true); - this._complete(); - }, - - _animate: function () { - // animation loop - this._animId = L.Util.requestAnimFrame(this._animate, this); - this._step(); - }, - - _step: function (round) { - var elapsed = (+new Date()) - this._startTime, - duration = this._duration * 1000; - - if (elapsed < duration) { - this._runFrame(this._easeOut(elapsed / duration), round); - } else { - this._runFrame(1); - this._complete(); - } - }, - - _runFrame: function (progress, round) { - var pos = this._startPos.add(this._offset.multiplyBy(progress)); - if (round) { - pos._round(); - } - L.DomUtil.setPosition(this._el, pos); - - this.fire('step'); - }, - - _complete: function () { - L.Util.cancelAnimFrame(this._animId); - - this._inProgress = false; - this.fire('end'); - }, - - _easeOut: function (t) { - return 1 - Math.pow(1 - t, this._easeOutPower); - } -}); - - -/* - * Extends L.Map to handle panning animations. - */ - -L.Map.include({ - - setView: function (center, zoom, options) { - - zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom); - center = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds); - options = options || {}; - - this.stop(); - - if (this._loaded && !options.reset && options !== true) { - - if (options.animate !== undefined) { - options.zoom = L.extend({animate: options.animate}, options.zoom); - options.pan = L.extend({animate: options.animate}, options.pan); - } - - // try animating pan or zoom - var animated = (this._zoom !== zoom) ? - this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) : - this._tryAnimatedPan(center, options.pan); - - if (animated) { - // prevent resize handler call, the view will refresh after animation anyway - clearTimeout(this._sizeTimer); - return this; - } - } - - // animation didn't start, just reset the map view - this._resetView(center, zoom); - - return this; - }, - - panBy: function (offset, options) { - offset = L.point(offset).round(); - options = options || {}; - - if (!offset.x && !offset.y) { - return this; - } - //If we pan too far then chrome gets issues with tiles - // and makes them disappear or appear in the wrong place (slightly offset) #2602 - if (options.animate !== true && !this.getSize().contains(offset)) { - this._resetView(this.unproject(this.project(this.getCenter()).add(offset)), this.getZoom()); - return this; - } - - if (!this._panAnim) { - this._panAnim = new L.PosAnimation(); - - this._panAnim.on({ - 'step': this._onPanTransitionStep, - 'end': this._onPanTransitionEnd - }, this); - } - - // don't fire movestart if animating inertia - if (!options.noMoveStart) { - this.fire('movestart'); - } - - // animate pan unless animate: false specified - if (options.animate !== false) { - L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim'); - - var newPos = this._getMapPanePos().subtract(offset); - this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity); - } else { - this._rawPanBy(offset); - this.fire('move').fire('moveend'); - } - - return this; - }, - - _onPanTransitionStep: function () { - this.fire('move'); - }, - - _onPanTransitionEnd: function () { - L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim'); - this.fire('moveend'); - }, - - _tryAnimatedPan: function (center, options) { - // difference between the new and current centers in pixels - var offset = this._getCenterOffset(center)._floor(); - - // don't animate too far unless animate: true specified in options - if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; } - - this.panBy(offset, options); - - return (options && options.animate) !== false; - } -}); - - -/* - * Extends L.Map to handle zoom animations. - */ - -L.Map.mergeOptions({ - zoomAnimation: true, - zoomAnimationThreshold: 4 -}); - -var zoomAnimated = L.DomUtil.TRANSITION && L.Browser.any3d && !L.Browser.mobileOpera; - -if (zoomAnimated) { - - L.Map.addInitHook(function () { - // don't animate on browsers without hardware-accelerated transitions or old Android/Opera - this._zoomAnimated = this.options.zoomAnimation; - - // zoom transitions run with the same duration for all layers, so if one of transitionend events - // happens after starting zoom animation (propagating to the map pane), we know that it ended globally - if (this._zoomAnimated) { - - this._createAnimProxy(); - - L.DomEvent.on(this._proxy, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this); - } - }); -} - -L.Map.include(!zoomAnimated ? {} : { - - _createAnimProxy: function () { - - var proxy = this._proxy = L.DomUtil.create('div', 'leaflet-proxy leaflet-zoom-animated'); - this._panes.mapPane.appendChild(proxy); - - this.on('zoomanim', function (e) { - var prop = L.DomUtil.TRANSFORM, - transform = proxy.style[prop]; - - L.DomUtil.setTransform(proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1)); - - // workaround for case when transform is the same and so transitionend event is not fired - if (transform === proxy.style[prop] && this._animatingZoom) { - this._onZoomTransitionEnd(); - } - }, this); - - this.on('load moveend', function () { - var c = this.getCenter(), - z = this.getZoom(); - L.DomUtil.setTransform(proxy, this.project(c, z), this.getZoomScale(z, 1)); - }, this); - }, - - _catchTransitionEnd: function (e) { - if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) { - this._onZoomTransitionEnd(); - } - }, - - _nothingToAnimate: function () { - return !this._container.getElementsByClassName('leaflet-zoom-animated').length; - }, - - _tryAnimatedZoom: function (center, zoom, options) { - - if (this._animatingZoom) { return true; } - - options = options || {}; - - // don't animate if disabled, not supported or zoom difference is too large - if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() || - Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; } - - // offset is the pixel coords of the zoom origin relative to the current center - var scale = this.getZoomScale(zoom), - offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale); - - // don't animate if the zoom origin isn't within one screen from the current center, unless forced - if (options.animate !== true && !this.getSize().contains(offset)) { return false; } - - L.Util.requestAnimFrame(function () { - this - ._moveStart(true) - ._animateZoom(center, zoom, true); - }, this); - - return true; - }, - - _animateZoom: function (center, zoom, startAnim, noUpdate) { - if (startAnim) { - this._animatingZoom = true; - - // remember what center/zoom to set after animation - this._animateToCenter = center; - this._animateToZoom = zoom; - - L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim'); - } - - this.fire('zoomanim', { - center: center, - zoom: zoom, - noUpdate: noUpdate - }); - }, - - _onZoomTransitionEnd: function () { - - this._animatingZoom = false; - - L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim'); - - this - ._move(this._animateToCenter, this._animateToZoom) - ._moveEnd(true); - } -}); - - - -L.Map.include({ - flyTo: function (targetCenter, targetZoom, options) { - - options = options || {}; - if (options.animate === false || !L.Browser.any3d) { - return this.setView(targetCenter, targetZoom, options); - } - - this.stop(); - - var from = this.project(this.getCenter()), - to = this.project(targetCenter), - size = this.getSize(), - startZoom = this._zoom; - - targetCenter = L.latLng(targetCenter); - targetZoom = targetZoom === undefined ? startZoom : targetZoom; - - var w0 = Math.max(size.x, size.y), - w1 = w0 * this.getZoomScale(startZoom, targetZoom), - u1 = to.distanceTo(from), - rho = 1.42, - rho2 = rho * rho; - - function r(i) { - var b = (w1 * w1 - w0 * w0 + (i ? -1 : 1) * rho2 * rho2 * u1 * u1) / (2 * (i ? w1 : w0) * rho2 * u1); - return Math.log(Math.sqrt(b * b + 1) - b); - } - - function sinh(n) { return (Math.exp(n) - Math.exp(-n)) / 2; } - function cosh(n) { return (Math.exp(n) + Math.exp(-n)) / 2; } - function tanh(n) { return sinh(n) / cosh(n); } - - var r0 = r(0); - - function w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); } - function u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; } - - function easeOut(t) { return 1 - Math.pow(1 - t, 1.5); } - - var start = Date.now(), - S = (r(1) - r0) / rho, - duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8; - - function frame() { - var t = (Date.now() - start) / duration, - s = easeOut(t) * S; - - if (t <= 1) { - this._flyToFrame = L.Util.requestAnimFrame(frame, this); - - this._move( - this.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom), - this.getScaleZoom(w0 / w(s), startZoom)); - - } else { - this - ._move(targetCenter, targetZoom) - ._moveEnd(true); - } - } - - this._moveStart(true); - - frame.call(this); - return this; - }, - - flyToBounds: function(bounds, options) { - var target = this._getBoundsCenterZoom(bounds, options); - return this.flyTo(target.center, target.zoom, options); - } -}); - - -/* - * Provides L.Map with convenient shortcuts for using browser geolocation features. - */ - -L.Map.include({ - _defaultLocateOptions: { - timeout: 10000, - watch: false - // setView: false - // maxZoom: - // maximumAge: 0 - // enableHighAccuracy: false - }, - - locate: function (/*Object*/ options) { - - options = this._locateOptions = L.extend({}, this._defaultLocateOptions, options); - - if (!('geolocation' in navigator)) { - this._handleGeolocationError({ - code: 0, - message: 'Geolocation not supported.' - }); - return this; - } - - var onResponse = L.bind(this._handleGeolocationResponse, this), - onError = L.bind(this._handleGeolocationError, this); - - if (options.watch) { - this._locationWatchId = - navigator.geolocation.watchPosition(onResponse, onError, options); - } else { - navigator.geolocation.getCurrentPosition(onResponse, onError, options); - } - return this; - }, - - stopLocate: function () { - if (navigator.geolocation) { - navigator.geolocation.clearWatch(this._locationWatchId); - } - if (this._locateOptions) { - this._locateOptions.setView = false; - } - return this; - }, - - _handleGeolocationError: function (error) { - var c = error.code, - message = error.message || - (c === 1 ? 'permission denied' : - (c === 2 ? 'position unavailable' : 'timeout')); - - if (this._locateOptions.setView && !this._loaded) { - this.fitWorld(); - } - - this.fire('locationerror', { - code: c, - message: 'Geolocation error: ' + message + '.' - }); - }, - - _handleGeolocationResponse: function (pos) { - var lat = pos.coords.latitude, - lng = pos.coords.longitude, - latlng = new L.LatLng(lat, lng), - bounds = latlng.toBounds(pos.coords.accuracy), - options = this._locateOptions; - - if (options.setView) { - var zoom = this.getBoundsZoom(bounds); - this.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom); - } - - var data = { - latlng: latlng, - bounds: bounds, - timestamp: pos.timestamp - }; - - for (var i in pos.coords) { - if (typeof pos.coords[i] === 'number') { - data[i] = pos.coords[i]; - } - } - - this.fire('locationfound', data); - } -}); - - -}(window, document)); \ No newline at end of file diff --git a/public/assets/vendor/leaflet-ajax/example/leaflet.css b/public/assets/vendor/leaflet-ajax/example/leaflet.css deleted file mode 100644 index fd827b44..00000000 --- a/public/assets/vendor/leaflet-ajax/example/leaflet.css +++ /dev/null @@ -1,511 +0,0 @@ -/* required styles */ - -.leaflet-pane, -.leaflet-tile, -.leaflet-marker-icon, -.leaflet-marker-shadow, -.leaflet-tile-container, -.leaflet-map-pane svg, -.leaflet-map-pane canvas, -.leaflet-zoom-box, -.leaflet-image-layer, -.leaflet-layer { - position: absolute; - left: 0; - top: 0; - } -.leaflet-container { - overflow: hidden; - -ms-touch-action: none; - touch-action: none; - } -.leaflet-tile, -.leaflet-marker-icon, -.leaflet-marker-shadow { - -webkit-user-select: none; - -moz-user-select: none; - user-select: none; - -webkit-user-drag: none; - } -/* Safari renders non-retina tile on retina better with this, but Chrome is worse */ -.leaflet-safari .leaflet-tile { - image-rendering: -webkit-optimize-contrast; - } -/* hack that prevents hw layers "stretching" when loading new tiles */ -.leaflet-safari .leaflet-tile-container { - width: 1600px; - height: 1600px; - -webkit-transform-origin: 0 0; - } -.leaflet-marker-icon, -.leaflet-marker-shadow { - display: block; - } -/* .leaflet-container svg: reset svg max-width decleration shipped in Joomla! (joomla.org) 3.x */ -/* .leaflet-container img: map is broken in FF if you have max-width: 100% on tiles */ -.leaflet-container .leaflet-overlay-pane svg, -.leaflet-container .leaflet-tile-pane img { - max-width: none !important; - } -/* stupid Android 2 doesn't understand "max-width: none" properly */ -.leaflet-container img.leaflet-image-layer { - max-width: 15000px !important; - } -.leaflet-tile { - filter: inherit; - visibility: hidden; - } -.leaflet-tile-loaded { - visibility: inherit; - } -.leaflet-zoom-box { - width: 0; - height: 0; - -moz-box-sizing: border-box; - box-sizing: border-box; - z-index: 8; - } -/* workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=888319 */ -.leaflet-overlay-pane svg { - -moz-user-select: none; - } - -.leaflet-pane { z-index: 400; } - -.leaflet-tile-pane { z-index: 200; } -.leaflet-overlay-pane { z-index: 400; } -.leaflet-shadow-pane { z-index: 500; } -.leaflet-marker-pane { z-index: 600; } -.leaflet-popup-pane { z-index: 700; } - -.leaflet-map-pane canvas { z-index: 100; } -.leaflet-map-pane svg { z-index: 200; } - -.leaflet-vml-shape { - width: 1px; - height: 1px; - } -.lvml { - behavior: url(#default#VML); - display: inline-block; - position: absolute; - } - - -/* control positioning */ - -.leaflet-control { - position: relative; - z-index: 7; - pointer-events: auto; - } -.leaflet-top, -.leaflet-bottom { - position: absolute; - z-index: 1000; - pointer-events: none; - } -.leaflet-top { - top: 0; - } -.leaflet-right { - right: 0; - } -.leaflet-bottom { - bottom: 0; - } -.leaflet-left { - left: 0; - } -.leaflet-control { - float: left; - clear: both; - } -.leaflet-right .leaflet-control { - float: right; - } -.leaflet-top .leaflet-control { - margin-top: 10px; - } -.leaflet-bottom .leaflet-control { - margin-bottom: 10px; - } -.leaflet-left .leaflet-control { - margin-left: 10px; - } -.leaflet-right .leaflet-control { - margin-right: 10px; - } - - -/* zoom and fade animations */ - -.leaflet-fade-anim .leaflet-tile { - will-change: opacity; - } -.leaflet-fade-anim .leaflet-popup { - opacity: 0; - -webkit-transition: opacity 0.2s linear; - -moz-transition: opacity 0.2s linear; - -o-transition: opacity 0.2s linear; - transition: opacity 0.2s linear; - } -.leaflet-fade-anim .leaflet-map-pane .leaflet-popup { - opacity: 1; - } -.leaflet-zoom-animated { - -webkit-transform-origin: 0 0; - -ms-transform-origin: 0 0; - transform-origin: 0 0; - } -.leaflet-zoom-anim .leaflet-zoom-animated { - will-change: transform; - } -.leaflet-zoom-anim .leaflet-zoom-animated { - -webkit-transition: -webkit-transform 0.25s cubic-bezier(0,0,0.25,1); - -moz-transition: -moz-transform 0.25s cubic-bezier(0,0,0.25,1); - -o-transition: -o-transform 0.25s cubic-bezier(0,0,0.25,1); - transition: transform 0.25s cubic-bezier(0,0,0.25,1); - } -.leaflet-zoom-anim .leaflet-tile, -.leaflet-pan-anim .leaflet-tile { - -webkit-transition: none; - -moz-transition: none; - -o-transition: none; - transition: none; - } - -.leaflet-zoom-anim .leaflet-zoom-hide { - visibility: hidden; - } - - -/* cursors */ - -.leaflet-interactive { - cursor: pointer; - } -.leaflet-grab { - cursor: -webkit-grab; - cursor: -moz-grab; - } -.leaflet-crosshair, -.leaflet-crosshair .leaflet-interactive { - cursor: crosshair; - } -.leaflet-popup-pane, -.leaflet-control { - cursor: auto; - } -.leaflet-dragging .leaflet-grab, -.leaflet-dragging .leaflet-grab .leaflet-interactive, -.leaflet-dragging .leaflet-marker-draggable { - cursor: move; - cursor: -webkit-grabbing; - cursor: -moz-grabbing; - } - - -/* visual tweaks */ - -.leaflet-container { - background: #ddd; - outline: 0; - } -.leaflet-container a { - color: #0078A8; - } -.leaflet-container a.leaflet-active { - outline: 2px solid orange; - } -.leaflet-zoom-box { - border: 2px dotted #38f; - background: rgba(255,255,255,0.5); - } - - -/* general typography */ -.leaflet-container { - font: 12px/1.5 "Helvetica Neue", Arial, Helvetica, sans-serif; - } - - -/* general toolbar styles */ - -.leaflet-bar { - box-shadow: 0 1px 5px rgba(0,0,0,0.65); - border-radius: 4px; - } -.leaflet-bar a, -.leaflet-bar a:hover { - background-color: #fff; - border-bottom: 1px solid #ccc; - width: 26px; - height: 26px; - line-height: 26px; - display: block; - text-align: center; - text-decoration: none; - color: black; - } -.leaflet-bar a, -.leaflet-control-layers-toggle { - background-position: 50% 50%; - background-repeat: no-repeat; - display: block; - } -.leaflet-bar a:hover { - background-color: #f4f4f4; - } -.leaflet-bar a:first-child { - border-top-left-radius: 4px; - border-top-right-radius: 4px; - } -.leaflet-bar a:last-child { - border-bottom-left-radius: 4px; - border-bottom-right-radius: 4px; - border-bottom: none; - } -.leaflet-bar a.leaflet-disabled { - cursor: default; - background-color: #f4f4f4; - color: #bbb; - } - -.leaflet-touch .leaflet-bar a { - width: 30px; - height: 30px; - line-height: 30px; - } - - -/* zoom control */ - -.leaflet-control-zoom-in, -.leaflet-control-zoom-out { - font: bold 18px 'Lucida Console', Monaco, monospace; - text-indent: 1px; - } -.leaflet-control-zoom-out { - font-size: 20px; - } - -.leaflet-touch .leaflet-control-zoom-in { - font-size: 22px; - } -.leaflet-touch .leaflet-control-zoom-out { - font-size: 24px; - } - - -/* layers control */ - -.leaflet-control-layers { - box-shadow: 0 1px 5px rgba(0,0,0,0.4); - background: #fff; - border-radius: 5px; - } -.leaflet-control-layers-toggle { - background-image: url(images/layers.png); - width: 36px; - height: 36px; - } -.leaflet-retina .leaflet-control-layers-toggle { - background-image: url(images/layers-2x.png); - background-size: 26px 26px; - } -.leaflet-touch .leaflet-control-layers-toggle { - width: 44px; - height: 44px; - } -.leaflet-control-layers .leaflet-control-layers-list, -.leaflet-control-layers-expanded .leaflet-control-layers-toggle { - display: none; - } -.leaflet-control-layers-expanded .leaflet-control-layers-list { - display: block; - position: relative; - } -.leaflet-control-layers-expanded { - padding: 6px 10px 6px 6px; - color: #333; - background: #fff; - } -.leaflet-control-layers-scrollbar { - overflow-y: scroll; - padding-right: 5px; - } -.leaflet-control-layers-selector { - margin-top: 2px; - position: relative; - top: 1px; - } -.leaflet-control-layers label { - display: block; - } -.leaflet-control-layers-separator { - height: 0; - border-top: 1px solid #ddd; - margin: 5px -10px 5px -6px; - } - - -/* attribution and scale controls */ - -.leaflet-container .leaflet-control-attribution { - background: #fff; - background: rgba(255, 255, 255, 0.7); - margin: 0; - } -.leaflet-control-attribution, -.leaflet-control-scale-line { - padding: 0 5px; - color: #333; - } -.leaflet-control-attribution a { - text-decoration: none; - } -.leaflet-control-attribution a:hover { - text-decoration: underline; - } -.leaflet-container .leaflet-control-attribution, -.leaflet-container .leaflet-control-scale { - font-size: 11px; - } -.leaflet-left .leaflet-control-scale { - margin-left: 5px; - } -.leaflet-bottom .leaflet-control-scale { - margin-bottom: 5px; - } -.leaflet-control-scale-line { - border: 2px solid #777; - border-top: none; - line-height: 1.1; - padding: 2px 5px 1px; - font-size: 11px; - white-space: nowrap; - overflow: hidden; - -moz-box-sizing: content-box; - box-sizing: content-box; - - background: #fff; - background: rgba(255, 255, 255, 0.5); - } -.leaflet-control-scale-line:not(:first-child) { - border-top: 2px solid #777; - border-bottom: none; - margin-top: -2px; - } -.leaflet-control-scale-line:not(:first-child):not(:last-child) { - border-bottom: 2px solid #777; - } - -.leaflet-touch .leaflet-control-attribution, -.leaflet-touch .leaflet-control-layers, -.leaflet-touch .leaflet-bar { - box-shadow: none; - } -.leaflet-touch .leaflet-control-layers, -.leaflet-touch .leaflet-bar { - border: 2px solid rgba(0,0,0,0.2); - background-clip: padding-box; - } - - -/* popup */ - -.leaflet-popup { - position: absolute; - text-align: center; - } -.leaflet-popup-content-wrapper { - padding: 1px; - text-align: left; - border-radius: 12px; - } -.leaflet-popup-content { - margin: 13px 19px; - line-height: 1.4; - } -.leaflet-popup-content p { - margin: 18px 0; - } -.leaflet-popup-tip-container { - margin: 0 auto; - width: 40px; - height: 20px; - position: relative; - overflow: hidden; - } -.leaflet-popup-tip { - width: 17px; - height: 17px; - padding: 1px; - - margin: -10px auto 0; - - -webkit-transform: rotate(45deg); - -moz-transform: rotate(45deg); - -ms-transform: rotate(45deg); - -o-transform: rotate(45deg); - transform: rotate(45deg); - } -.leaflet-popup-content-wrapper, -.leaflet-popup-tip { - background: white; - color: #333; - box-shadow: 0 3px 14px rgba(0,0,0,0.4); - } -.leaflet-container a.leaflet-popup-close-button { - position: absolute; - top: 0; - right: 0; - padding: 4px 4px 0 0; - border: none; - text-align: center; - width: 18px; - height: 14px; - font: 16px/14px Tahoma, Verdana, sans-serif; - color: #c3c3c3; - text-decoration: none; - font-weight: bold; - background: transparent; - } -.leaflet-container a.leaflet-popup-close-button:hover { - color: #999; - } -.leaflet-popup-scrolled { - overflow: auto; - border-bottom: 1px solid #ddd; - border-top: 1px solid #ddd; - } - -.leaflet-oldie .leaflet-popup-content-wrapper { - zoom: 1; - } -.leaflet-oldie .leaflet-popup-tip { - width: 24px; - margin: 0 auto; - - -ms-filter: "progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678)"; - filter: progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678); - } -.leaflet-oldie .leaflet-popup-tip-container { - margin-top: -1px; - } - -.leaflet-oldie .leaflet-control-zoom, -.leaflet-oldie .leaflet-control-layers, -.leaflet-oldie .leaflet-popup-content-wrapper, -.leaflet-oldie .leaflet-popup-tip { - border: 1px solid #999; - } - - -/* div icon */ - -.leaflet-div-icon { - background: #fff; - border: 1px solid #666; - } diff --git a/public/assets/vendor/leaflet-ajax/example/leaflet.spin.js b/public/assets/vendor/leaflet-ajax/example/leaflet.spin.js deleted file mode 100644 index cee5d6aa..00000000 --- a/public/assets/vendor/leaflet-ajax/example/leaflet.spin.js +++ /dev/null @@ -1,41 +0,0 @@ -L.SpinMapMixin = { - spin: function (state, options) { - if (!!state) { - // start spinning ! - if (!this._spinner) { - this._spinner = new Spinner(options).spin(this._container); - this._spinning = 0; - } - this._spinning++; - } - else { - this._spinning--; - if (this._spinning <= 0) { - // end spinning ! - if (this._spinner) { - this._spinner.stop(); - this._spinner = null; - } - } - } - } -}; - -L.Map.include(L.SpinMapMixin); - -L.Map.addInitHook(function () { - this.on('layeradd', function (e) { - // If added layer is currently loading, spin ! - if (e.layer.loading) this.spin(true); - if (typeof e.layer.on != 'function') return; - e.layer.on('data:loading', function () { this.spin(true); }, this); - e.layer.on('data:loaded', function () { this.spin(false); }, this); - }, this); - this.on('layerremove', function (e) { - // Clean-up - if (e.layer.loading) this.spin(false); - if (typeof e.layer.on != 'function') return; - e.layer.off('data:loaded'); - e.layer.off('data:loading'); - }, this); -}); diff --git a/public/assets/vendor/leaflet-ajax/example/local.html b/public/assets/vendor/leaflet-ajax/example/local.html deleted file mode 100644 index b69a5191..00000000 --- a/public/assets/vendor/leaflet-ajax/example/local.html +++ /dev/null @@ -1,69 +0,0 @@ - - - - - - - - - - - - - - - - - - Leaflet AJAX - - -
- - - - - diff --git a/public/assets/vendor/leaflet-ajax/example/spin.js b/public/assets/vendor/leaflet-ajax/example/spin.js deleted file mode 100644 index 1fc4c5c8..00000000 --- a/public/assets/vendor/leaflet-ajax/example/spin.js +++ /dev/null @@ -1 +0,0 @@ -(function(t,e){if(typeof exports=="object")module.exports=e();else if(typeof define=="function"&&define.amd)define(e);else t.Spinner=e()})(this,function(){"use strict";var t=["webkit","Moz","ms","O"],e={},i;function o(t,e){var i=document.createElement(t||"div"),o;for(o in e)i[o]=e[o];return i}function n(t){for(var e=1,i=arguments.length;e>1):parseInt(n.left,10)+s)+"px",top:(n.top=="auto"?l.y-a.y+(t.offsetHeight>>1):parseInt(n.top,10)+s)+"px"})}r.setAttribute("role","progressbar");e.lines(r,e.opts);if(!i){var d=0,p=(n.lines-1)*(1-n.direction)/2,c,h=n.fps,m=h/n.speed,y=(1-n.opacity)/(m*n.trail/100),g=m/n.lines;(function v(){d++;for(var t=0;t>1)+"px"})}for(;r',e)}r.addRule(".spin-vml","behavior:url(#default#VML)");c.prototype.lines=function(e,i){var o=i.length+i.width,r=2*o;function s(){return f(t("group",{coordsize:r+" "+r,coordorigin:-o+" "+-o}),{width:r,height:r})}var a=-(i.width+i.length)*2+"px",l=f(s(),{position:"absolute",top:a,left:a}),u;function p(e,r,a){n(l,n(f(s(),{rotation:360/i.lines*e+"deg",left:~~r}),n(f(t("roundrect",{arcsize:i.corners}),{width:o,height:i.width,left:i.radius,top:-i.width>>1,filter:a}),t("fill",{color:d(i.color,e),opacity:i.opacity}),t("stroke",{opacity:0}))))}if(i.shadow)for(u=1;u<=i.lines;u++)p(u,-2,"progid:DXImageTransform.Microsoft.Blur(pixelradius=2,makeshadow=1,shadowopacity=.3)");for(u=1;u<=i.lines;u++)p(u);return n(e,l)};c.prototype.opacity=function(t,e,i,o){var n=t.firstChild;o=o.shadow&&o.lines||0;if(n&&e+o dist/leaflet.ajax.js && uglifyjs -mc < dist/leaflet.ajax.js > dist/leaflet.ajax.min.js" - }, - "devDependencies": { - "browserify": "^11.0.1", - "express": "^4.13.3", - "semistandard": "^9.1.0", - "uglify-js": "^2.4.24" - }, - "repository": { - "type": "git", - "url": "git://github.com/calvinmetcalf/leaflet-ajax.git" - }, - "keywords": [ - "leaflet", - "ajax", - "geojson" - ], - "author": "Calvin Metcalf", - "license": "MIT", - "bugs": { - "url": "https://github.com/calvinmetcalf/leaflet-ajax/issues" - }, - "dependencies": { - "lie": "^3.0.1" - } -} diff --git a/public/assets/vendor/leaflet-ajax/server.js b/public/assets/vendor/leaflet-ajax/server.js deleted file mode 100644 index d4d7aeaa..00000000 --- a/public/assets/vendor/leaflet-ajax/server.js +++ /dev/null @@ -1,13 +0,0 @@ -'use strict'; -var express = require('express'); -var app = express(); -var path = require('path'); -var fs = require('fs'); -var counties = JSON.parse(fs.readFileSync(path.join(__dirname, 'example', 'counties.geojson'), {encoding: 'utf8'})); - -app.get('/example/counties.jsonp', function (req, res){ - res.jsonp(counties); -}); -app.use('/example', express.static(path.join(__dirname, 'example'))); -app.use('/dist', express.static(path.join(__dirname, 'dist'))); -app.listen(3000); diff --git a/public/assets/vendor/leaflet-ajax/src/ajax.js b/public/assets/vendor/leaflet-ajax/src/ajax.js deleted file mode 100644 index 97c8e0e5..00000000 --- a/public/assets/vendor/leaflet-ajax/src/ajax.js +++ /dev/null @@ -1,51 +0,0 @@ -'use strict'; -var jsonp = require('./jsonp'); -var Promise = require('lie'); - -module.exports = function (url, options) { - options = options || {}; - if (options.jsonp) { - return jsonp(url, options); - } - var request; - var cancel; - var out = new Promise(function (resolve, reject) { - cancel = reject; - if (global.XMLHttpRequest === undefined) { - reject('XMLHttpRequest is not supported'); - } - var response; - request = new global.XMLHttpRequest(); - request.open('GET', url); - if (options.headers) { - Object.keys(options.headers).forEach(function (key) { - request.setRequestHeader(key, options.headers[key]); - }); - } - request.onreadystatechange = function () { - if (request.readyState === 4) { - if ((request.status < 400 && options.local) || request.status === 200) { - if (global.JSON) { - response = JSON.parse(request.responseText); - } else { - reject(new Error('JSON is not supported')); - } - resolve(response); - } else { - if (!request.status) { - reject('Attempted cross origin request without CORS enabled'); - } else { - reject(request.statusText); - } - } - } - }; - request.send(); - }); - out.catch(function (reason) { - request.abort(); - return reason; - }); - out.abort = cancel; - return out; -}; diff --git a/public/assets/vendor/leaflet-ajax/src/index.js b/public/assets/vendor/leaflet-ajax/src/index.js deleted file mode 100644 index d8259277..00000000 --- a/public/assets/vendor/leaflet-ajax/src/index.js +++ /dev/null @@ -1,133 +0,0 @@ -'use strict'; -var L = global.L || require('leaflet'); -var Promise = require('lie'); -var ajax = require('./ajax'); -L.GeoJSON.AJAX = L.GeoJSON.extend({ - defaultAJAXparams: { - dataType: 'json', - callbackParam: 'callback', - local: false, - middleware: function (f) { - return f; - } - }, - initialize: function (url, options) { - this.urls = []; - if (url) { - if (typeof url === 'string') { - this.urls.push(url); - } else if (typeof url.pop === 'function') { - this.urls = this.urls.concat(url); - } else { - options = url; - url = undefined; - } - } - var ajaxParams = L.Util.extend({}, this.defaultAJAXparams); - - for (var i in options) { - if (this.defaultAJAXparams.hasOwnProperty(i)) { - ajaxParams[i] = options[i]; - } - } - this.ajaxParams = ajaxParams; - this._layers = {}; - L.Util.setOptions(this, options); - this.on('data:loaded', function () { - if (this.filter) { - this.refilter(this.filter); - } - }, this); - var self = this; - if (this.urls.length > 0) { - new Promise(function (resolve) { - resolve(); - }).then(function () { - self.addUrl(); - }); - } - }, - clearLayers: function () { - this.urls = []; - L.GeoJSON.prototype.clearLayers.call(this); - return this; - }, - addUrl: function (url) { - var self = this; - if (url) { - if (typeof url === 'string') { - self.urls.push(url); - } else if (typeof url.pop === 'function') { - self.urls = self.urls.concat(url); - } - } - var loading = self.urls.length; - var done = 0; - self.fire('data:loading'); - self.urls.forEach(function (url) { - if (self.ajaxParams.dataType.toLowerCase() === 'json') { - ajax(url, self.ajaxParams).then(function (d) { - var data = self.ajaxParams.middleware(d); - self.addData(data); - self.fire('data:progress', data); - }, function (err) { - self.fire('data:progress', { - error: err - }); - }); - } else if (self.ajaxParams.dataType.toLowerCase() === 'jsonp') { - L.Util.jsonp(url, self.ajaxParams).then(function (d) { - var data = self.ajaxParams.middleware(d); - self.addData(data); - self.fire('data:progress', data); - }, function (err) { - self.fire('data:progress', { - error: err - }); - }); - } - }); - self.on('data:progress', function () { - if (++done === loading) { - self.fire('data:loaded'); - } - }); - }, - refresh: function (url) { - url = url || this.urls; - this.clearLayers(); - this.addUrl(url); - }, - refilter: function (func) { - if (typeof func !== 'function') { - this.filter = false; - this.eachLayer(function (a) { - a.setStyle({ - stroke: true, - clickable: true - }); - }); - } else { - this.filter = func; - this.eachLayer(function (a) { - if (func(a.feature)) { - a.setStyle({ - stroke: true, - clickable: true - }); - } else { - a.setStyle({ - stroke: false, - clickable: false - }); - } - }); - } - } -}); -L.Util.Promise = Promise; -L.Util.ajax = ajax; -L.Util.jsonp = require('./jsonp'); -L.geoJson.ajax = function (geojson, options) { - return new L.GeoJSON.AJAX(geojson, options); -}; diff --git a/public/assets/vendor/leaflet-ajax/src/jsonp.js b/public/assets/vendor/leaflet-ajax/src/jsonp.js deleted file mode 100644 index bbf89c3d..00000000 --- a/public/assets/vendor/leaflet-ajax/src/jsonp.js +++ /dev/null @@ -1,50 +0,0 @@ -'use strict'; -var L = global.L || require('leaflet'); -var Promise = require('lie'); - -module.exports = function (url, options) { - options = options || {}; - var head = document.getElementsByTagName('head')[0]; - var scriptNode = L.DomUtil.create('script', '', head); - var cbName, ourl, cbSuffix, cancel; - var out = new Promise(function (resolve, reject) { - cancel = reject; - var cbParam = options.cbParam || 'callback'; - if (options.callbackName) { - cbName = options.callbackName; - } else { - cbSuffix = '_' + ('' + Math.random()).slice(2); - cbName = '_leafletJSONPcallbacks.' + cbSuffix; - } - scriptNode.type = 'text/javascript'; - if (cbSuffix) { - if (!global._leafletJSONPcallbacks) { - global._leafletJSONPcallbacks = { - length: 0 - }; - } - global._leafletJSONPcallbacks.length++; - global._leafletJSONPcallbacks[cbSuffix] = function (data) { - head.removeChild(scriptNode); - delete global._leafletJSONPcallbacks[cbSuffix]; - global._leafletJSONPcallbacks.length--; - if (!global._leafletJSONPcallbacks.length) { - delete global._leafletJSONPcallbacks; - } - resolve(data); - }; - } - if (url.indexOf('?') === -1) { - ourl = url + '?' + cbParam + '=' + cbName; - } else { - ourl = url + '&' + cbParam + '=' + cbName; - } - scriptNode.src = ourl; - }).then(null, function (reason) { - head.removeChild(scriptNode); - delete L.Util.ajax.cb[cbSuffix]; - return reason; - }); - out.abort = cancel; - return out; -}; diff --git a/public/assets/vendor/leaflet/.bower.json b/public/assets/vendor/leaflet/.bower.json deleted file mode 100644 index 9e5b48e4..00000000 --- a/public/assets/vendor/leaflet/.bower.json +++ /dev/null @@ -1,29 +0,0 @@ -{ - "name": "leaflet", - "description": "JavaScript library for mobile-friendly interactive maps", - "license": "BSD-2-Clause", - "main": [ - "dist/leaflet.css", - "dist/leaflet-src.js" - ], - "ignore": [ - ".*", - "CHANGELOG.json", - "FAQ.md", - "debug", - "spec", - "src", - "build" - ], - "homepage": "https://github.com/Leaflet/Leaflet", - "version": "1.2.0", - "_release": "1.2.0", - "_resolution": { - "type": "version", - "tag": "v1.2.0", - "commit": "1ac320ba232cb85b73ac81f3d82780c9d07f0d4e" - }, - "_source": "https://github.com/Leaflet/Leaflet.git", - "_target": "1.2.0", - "_originalSource": "leaflet" -} \ No newline at end of file diff --git a/public/assets/vendor/leaflet/CHANGELOG.md b/public/assets/vendor/leaflet/CHANGELOG.md deleted file mode 100644 index e2a195be..00000000 --- a/public/assets/vendor/leaflet/CHANGELOG.md +++ /dev/null @@ -1,1574 +0,0 @@ -Leaflet Changelog -================= - -(all changes without author notice are by [@mourner](https://github.com/mourner)) - -## master - -An in-progress version being developed on the `master` branch. - -## 1.1.0 (2017-06-27) - -### API changes - -* Add deprecation notice for `L.Mixin.Events`, fixes [#5358](https://github.com/leaflet/leaflet/issues/5358) ([#5365](https://github.com/leaflet/leaflet/issues/5365)) (by [perliedman](https://github.com/perliedman)) -* Turn `nonBubblingEvents` into a documented boolean option ([#4883](https://github.com/leaflet/leaflet/issues/4883) by [IvanSanchez](https://github.com/IvanSanchez)) -* Add `L.transformation` factory, allow creation from array ([#5282](https://github.com/leaflet/leaflet/issues/5282) by [anetz89](https://github.com/anetz89)) -* `toGeoJSON` methods now default to a precision of six decimals (as recommended in the [GeoJSON spec](https://tools.ietf.org/html/rfc7946#section-11.2)), precision is settable through a method parameter ([#5544](https://github.com/leaflet/leaflet/pull/5544) by [mattgrande](https://github.com/mattgrande)) - -### Docs & Web Site - -* `reference.html` now always points to latest stable docs ([#5490](https://github.com/leaflet/leaflet/issues/5490) by [IvanSanchez](https://github.com/IvanSanchez), [#5493](https://github.com/leaflet/leaflet/issues/5493) by [alyhegazy](https://github.com/alyhegazy)) -* Subresource integrity information and scripts ([#5468](https://github.com/leaflet/leaflet/issues/5468) by [IvanSanchez](https://github.com/IvanSanchez)) -* New tutorial on zooming (by [IvanSanchez](https://github.com/IvanSanchez), [#5007](https://github.com/leaflet/leaflet/issues/5007)) -* Minor documentation improvements by [perliedman](https://github.com/perliedman), [veltman](https://github.com/veltman), [FDMS](https://github.com/FDMS), [ghybs](https://github.com/ghybs), [RichardLitt](https://github.com/RichardLitt), [gatsbimantico](https://github.com/gatsbimantico), [daturkel](https://github.com/daturkel), [jgravois](https://github.com/jgravois), [geografa](https://github.com/geografa), [BjoernSchilberg](https://github.com/BjoernSchilberg), [IvanSanchez](https://github.com/IvanSanchez), [bozdoz](https://github.com/bozdoz), [zemadz](https://github.com/zemadz), [danzel](https://github.com/danzel), [jieter](https://github.com/jieter), [massic80](https://github.com/massic80), [jjimenezshaw](https://github.com/jjimenezshaw), [hnrchrdl](https://github.com/hnrchrdl) and [RayBB](https://github.com/RayBB) - -### ES6 / Rollup - -* ES6 modules & Rollup ([#4989](https://github.com/leaflet/leaflet/issues/4989)) (by [mourner](https://github.com/mourner) and [IvanSanchez](https://github.com/IvanSanchez)) -* Additional fixes, testing and cleanup of ES6 code by [thachhoang](https://github.com/thachhoang), [danzel](https://github.com/danzel), [jkuebart](https://github.com/jkuebart), [simon04](https://github.com/simon04), [perliedman](https://github.com/perliedman), [luiscamachopt](https://github.com/luiscamachopt) and [Trufi](https://github.com/Trufi) ([#5373](https://github.com/leaflet/leaflet/issues/5373), [#5417](https://github.com/leaflet/leaflet/issues/5417), [#5351](https://github.com/leaflet/leaflet/issues/5351), [#5330](https://github.com/leaflet/leaflet/issues/5330), [#5329](https://github.com/leaflet/leaflet/issues/5329), [#5489](https://github.com/leaflet/leaflet/issues/5489), [#5504](https://github.com/leaflet/leaflet/issues/5504), [#5456](https://github.com/leaflet/leaflet/issues/5456), [#5463](https://github.com/leaflet/leaflet/issues/5463)) - -### Improvements - -* Add new class `L.VideoOverlay` ([#4988](https://github.com/leaflet/leaflet/issues/4988) by [IvanSanchez](https://github.com/IvanSanchez)) -* Added z-index support to ImageOverlay ([#5418](https://github.com/leaflet/leaflet/issues/5418) by [Saulzi](https://github.com/Saulzi)) -* Added error event to `ImageOverlay` layer and added tests for the new ([#5416](https://github.com/leaflet/leaflet/issues/5416) by [Saulzi](https://github.com/Saulzi)) -* Add `className` option for `ImageOverlay` ([#5555](https://github.com/leaflet/leaflet/issues/5555) by [perliedman](https://github.com/perliedman)) - -### Bug fixes - -* Handle edge case of empty bounds on `_getBoundsCenterZoom` ([#5157](https://github.com/leaflet/leaflet/issues/5157) by [IvanSanchez](https://github.com/IvanSanchez)) -* Add new methods to `L.Bounds` for 2 missing corners, fixes [#5475](https://github.com/leaflet/leaflet/issues/5475) ([#5488](https://github.com/leaflet/leaflet/issues/5488) by [ghybs](https://github.com/ghybs)) -* Handle `Polyline`s with empty array of `LatLng`s, [#5497](https://github.com/leaflet/leaflet/issues/5497) ([#5498](https://github.com/leaflet/leaflet/issues/5498), by [perliedman](https://github.com/perliedman)) -* Take `devicePixelRatio` into account for scrollwheel zoom in win10+chrome ([#5480](https://github.com/leaflet/leaflet/issues/5480)) (by [IvanSanchez](https://github.com/IvanSanchez)) -* Add hook points to allow for a proper NoGap plugin ([#5476](https://github.com/leaflet/leaflet/issues/5476)) (by [IvanSanchez](https://github.com/IvanSanchez)) -* Sanity check to prevent loading tiles when bounds are `Infinity` ([#5478](https://github.com/leaflet/leaflet/issues/5478), [#5479](https://github.com/leaflet/leaflet/issues/5479) by [IvanSanchez](https://github.com/IvanSanchez)) -* Fix box zoom race condition ([#5452](https://github.com/leaflet/leaflet/issues/5452) by [ppaskaris](https://github.com/ppaskaris)) -* On update set current tiles active to avoid pruning ([#5381](https://github.com/leaflet/leaflet/issues/5381)) ([#5431](https://github.com/leaflet/leaflet/issues/5431) by [oliverheilig](https://github.com/oliverheilig)) -* Make `L.Mixin.Events` a simple object instead of a prototype so it doesn't have a 'constructor' property, fixes [#5451](https://github.com/leaflet/leaflet/issues/5451) ([#5453](https://github.com/leaflet/leaflet/issues/5453) by [luiscamachopt](https://github.com/luiscamachopt)) -* Canvas: call `ctx.setLineDash` in `_fillStroke` [#5182](https://github.com/leaflet/leaflet/issues/5182) ([#5454](https://github.com/leaflet/leaflet/issues/5454) by [TeXitoi](https://github.com/TeXitoi)) -* Only rearrange DOM in `toFront`/`toBack` if needed, fixes [#4050](https://github.com/leaflet/leaflet/issues/4050) ([#5465](https://github.com/leaflet/leaflet/issues/5465) by [perliedman](https://github.com/perliedman)) -* Push back keyboard navigation order of `L.Popup`'s close button ([#5461](https://github.com/leaflet/leaflet/issues/5461) by [Mirodil](https://github.com/Mirodil)) -* Remove spurious check in `DomUtil.preventOutline` ([#5435](https://github.com/leaflet/leaflet/issues/5435) by [qjas](https://github.com/qjas)) -* Error handler in `ImageOverlay` for 404 links ([#5307](https://github.com/leaflet/leaflet/issues/5307)) by [APwhitehat](https://github.com/APwhitehat)) -* Ensure renderer's container is initialized when a path is added to map ([#5404](https://github.com/leaflet/leaflet/issues/5404) by [IvanSanchez](https://github.com/IvanSanchez)) -* Layers Control only add layer events to layers when we are on the map. Fixes [#5421](https://github.com/leaflet/leaflet/issues/5421) ([#5422](https://github.com/leaflet/leaflet/issues/5422) by [danzel](https://github.com/danzel)) -* Layers Control can now become scrollable even if `collapsed: false`, fixes [#5328](https://github.com/leaflet/leaflet/issues/5328) ([#5348](https://github.com/leaflet/leaflet/issues/5348) by [ghybs](https://github.com/ghybs)) -* Stop map on drag start instead of pointer down, fixes [#5350](https://github.com/leaflet/leaflet/issues/5350) ([#5378](https://github.com/leaflet/leaflet/issues/5378) by [perliedman](https://github.com/perliedman)) -* fix invalid GeoJSON produced by nested `LayerGroups` ([#5359](https://github.com/leaflet/leaflet/issues/5359) by [Resonance1584](https://github.com/Resonance1584)) -* Update toolbar inner border radius ([#5361](https://github.com/leaflet/leaflet/issues/5361) by [newmanw](https://github.com/newmanw)) -* Export `lastId` in `Util` ([#5349](https://github.com/leaflet/leaflet/issues/5349) by [DenisCarriere](https://github.com/DenisCarriere)) -* Do not stop keypress on escape if no popup is open, plus unit tests ([#5331](https://github.com/leaflet/leaflet/issues/5331) (by [IvanSanchez](https://github.com/IvanSanchez)) -* Docs: remove `iframe` borders on examples ([#5327](https://github.com/leaflet/leaflet/issues/5327)) (by [tariqksoliman](https://github.com/tariqksoliman)) -* Pull `min`/`maxNativeZoom` from `TileLayer` into `GridLayer`, as per [#5316](https://github.com/leaflet/leaflet/issues/5316). ([#5319](https://github.com/leaflet/leaflet/issues/5319) by [jkuebart](https://github.com/jkuebart)) -* Disable click propagation on zoom control buttons, fixes [#5308](https://github.com/leaflet/leaflet/issues/5308) ([#5318](https://github.com/leaflet/leaflet/issues/5318) by [perliedman](https://github.com/perliedman)) -* Add CSS for `-webkit-tap-highlight-color`, fixes [#5302](https://github.com/leaflet/leaflet/issues/5302) ([#5303](https://github.com/leaflet/leaflet/issues/5303) by [IvanSanchez](https://github.com/IvanSanchez)) -* Removed type attribute in HTML5 files ([#5309](https://github.com/leaflet/leaflet/issues/5309) by [uzerus](https://github.com/uzerus)) -* Add margin to `LatLngBounds.equals` method ([#5071](https://github.com/leaflet/leaflet/issues/5071) by [miguelcobain](https://github.com/miguelcobain)) -* Add `L.Draggable` options and fix docstring ([#5301](https://github.com/leaflet/leaflet/issues/5301) by [IvanSanchez](https://github.com/IvanSanchez)) -* Fix max/min calculation for `getBoundsZoom`, fixes [#5136](https://github.com/leaflet/leaflet/issues/5136) ([#5137](https://github.com/leaflet/leaflet/issues/5137) by [IvanSanchez](https://github.com/IvanSanchez)) -* Scrubbing of detached DOM elements, prevents memory leaks; fixes [#5263](https://github.com/leaflet/leaflet/issues/5263) ([#5265](https://github.com/leaflet/leaflet/issues/5265) by [IvanSanchez](https://github.com/IvanSanchez)) -* Remove `marker.dragging` when not on the map, fixes [#5293](https://github.com/leaflet/leaflet/issues/5293) ([#5295](https://github.com/leaflet/leaflet/issues/5295) by [danzel](https://github.com/danzel)) -* Stop scroll propagation in `L.Layers.Control` in chrome>55 ([#5280](https://github.com/leaflet/leaflet/issues/5280) by [IvanSanchez](https://github.com/IvanSanchez)) -* Allow HTML inputs in layer control's labels, fixes [#5116](https://github.com/leaflet/leaflet/issues/5116) ([#51165544](https://github.com/leaflet/leaflet/issues/5544) by [iZucken](https://github.com/iZucken)) -* Fix possible null reference when auto detecting icon default path, fixes [#5534](https://github.com/leaflet/leaflet/issues/5534) ([#5535](https://github.com/leaflet/leaflet/issues/5535) by [williamscs](https://github.com/williamscs)) -* Don't turn enter keypress into map clicks, fixes [#5499](https://github.com/leaflet/leaflet/issues/5499) ([#5507](https://github.com/leaflet/leaflet/issues/5507) by [perliedman](https://github.com/perliedman)) -* Use minus character instead of hyphen in the zoom control ([#5501](https://github.com/leaflet/leaflet/issues/5501) by [damianmoore](https://github.com/damianmoore)) - -## 1.0.3 (January 23, 2017) - -### Bug fixes - -* Avoid extra `L.Canvas` redraws on several scenarios (by [@perliedman](https://github.com/perliedman), [#5250](https://github.com/Leaflet/Leaflet/pull/5034), also thanks to [@manubb](https://github.com/manubb) for investigation and PR). -* Fix behaviour of `dblclick` events in [Chrome 55 due to `PointerEvent`s](https://developers.google.com/web/updates/2016/11/nic55#pointer-events) (by [@IvanSanchez](https://github.com/IvanSanchez), [#5185](https://github.com/Leaflet/Leaflet/pull/5185), [#5248](https://github.com/Leaflet/Leaflet/pull/5248), [#5268](https://github.com/Leaflet/Leaflet/pull/5268)). -* Fix a dangling comma making IE8 fail to parse the code (by [@batje](https://github.com/batje), [#5270](https://github.com/Leaflet/Leaflet/pull/5270)). -* Backport event handling fixes from [#5054](https://github.com/Leaflet/Leaflet/pull/5054) into `L.SVG.VML` for IE8 (by [@IvanSanchez](https://github.com/IvanSanchez), [#5215](https://github.com/Leaflet/Leaflet/pull/5215)). -* Fix a race condition when closing popups during their `popupopen` event (by [@hagai26](https://github.com/hagai26), [#5202](https://github.com/Leaflet/Leaflet/pull/5202)). -* Fix `getBoundsZoom` return value on CRSs with a flipped axis (by [@computerlove](https://github.com/computerlove), [#5204](https://github.com/Leaflet/Leaflet/pull/5204)). -* Avoid infinite loops when the `errorTileUrl` of a `L.TileLayer` returns 404 (by [@IvanSanchez](https://github.com/IvanSanchez), [#5177](https://github.com/Leaflet/Leaflet/pull/5177)). -* Remove erroneous initialization of unused event listeners (by [@Brikky](https://github.com/Brikky), [#5160](https://github.com/Leaflet/Leaflet/pull/5160)). -* Fix rounding of `L.Canvas` redraw areas to avoid artifacts during partial updates (by [@Ernie23](https://github.com/Ernie23), [#5148](https://github.com/Leaflet/Leaflet/pull/5148)). -* Fix `isPopupOpen()` behaviour of `L.Layer` when no popup is bound to a layer (by [@gvangool](https://github.com/gvangool), [#5106](https://github.com/Leaflet/Leaflet/pull/5106)). -* Add a sanity check in `LatLngBounds.contains()` to allow for non-instantiated `LatLng` objects (by [@IvanSanchez](https://github.com/IvanSanchez), [#5135](https://github.com/Leaflet/Leaflet/pull/5135)). -* Fix collapsing of `L.Control.Layers` when the `collapse` option is `false` (by [@perliedman](https://github.com/perliedman), [#5131](https://github.com/Leaflet/Leaflet/pull/5131)). - -### API changes - -* Added a new `WrapLatLngBounds` method to `L.CRS`, to fix an issue with `maxBounds` of `GridLayer`s (by [@IvanSanchez](https://github.com/IvanSanchez), [#5185](https://github.com/Leaflet/Leaflet/pull/5185), also thanks to [@DiogoMCampos](https://github.com/DiogoMCampos) for investigation). -* `L.Map.getSize()` will now return `0` instead of `NaN` in non-graphical environments (by [@ughitsaaron](https://github.com/ughitsaaron), [#5209](https://github.com/Leaflet/Leaflet/pull/5209)). - -### Improvements - -* Several minor documentation improvements by [@IvanSanchez](https://github.com/IvanSanchez), [@jieter](https://github.com/jieter), [@alonsogarciapablo](https://github.com/alonsogarciapablo), [@jasonoverland](https://github.com/jasonoverland), [@danzel](https://github.com/danzel), [@ghybs](https://github.com/ghybs), [@Ralf8686](https://github.com/Ralf8686), [@geoloep](https://github.com/geoloep) -* Add an `alt` attribute to the ``s of marker shadows (by [@topicus](https://github.com/topicus), [#5259](https://github.com/Leaflet/Leaflet/pull/5259)). - -## 1.0.2 (November 21, 2016) - -### Bug fixes - -* Fix CSS for marker shadows when `max-width` is already set (by [@brunob](https://github.com/brunob), [#5046](https://github.com/Leaflet/Leaflet/pull/5046)). -* Fix canvas redraw when style updates fill and/or weight (by [@perliedman](https://github.com/perliedman), [#5034](https://github.com/Leaflet/Leaflet/pull/5034)). -* Prevent canvas from firing multiple `mouseover` events for same layer (by [@perliedman](https://github.com/perliedman), [#5033](https://github.com/Leaflet/Leaflet/pull/5033)). -* Fixed a race condition when removing and adding `L.Canvas` vectors during a zoom animation (by [@ghybs](https://github.com/ghybs)) [#5011](https://github.com/Leaflet/Leaflet/pull/5011). -* Fix zoom animation of ImageOverlay when CRS's Y axis is flipped (by [@perliedman](https://github.com/perliedman)), [#4993](https://github.com/Leaflet/Leaflet/pull/4993). -* Fix encoding/decoding of GeoJSON `FeatureCollection`s (by [@IvanSanchez](https://github.com/IvanSanchez)), [#5045](https://github.com/Leaflet/Leaflet/issues/5045). -* Fix `minZoom`/`maxZoom` late inizialization (by [@IvanSanchez](https://github.com/IvanSanchez)), [#4916](https://github.com/Leaflet/Leaflet/pull/4916). -* Fix styling of custom SVG markers by making stricter CSS selectors (by [@jwoyame](https://github.com/jwoyame)) [#4597](https://github.com/Leaflet/Leaflet/pull/4597). -* Fix order of `mouseover`/`mouseout` events on overlapping `L.Canvas` layers (by [@perliedman](https://github.com/perliedman)), [#5090](https://github.com/Leaflet/Leaflet/pull/5090). -* Fix drag behaviour when a draggable marker is removed in mid-drag (by [@IvanSanchez](https://github.com/IvanSanchez), [#5063](https://github.com/Leaflet/Leaflet/pull/5063). -* Fix `L.Control.Layers.collapse()` on initially uncollapsed layer controls (by [@perliedman](https://github.com/perliedman)), [#5131](https://github.com/Leaflet/Leaflet/pull/5131). -* Fix blurriness of `L.Tooltip` by rounding up pixel coordinates (by [@ashmigelski](https://github.com/ashmigelski)), [#5089](https://github.com/Leaflet/Leaflet/pull/5089). -* Fix click events on overlapping geometries when using `L.Canvas` (by [@perliedman](https://github.com/perliedman)), [#5100](https://github.com/Leaflet/Leaflet/pull/5100). - -### API changes - -* Add a `sortLayers` option to `L.Control.Layers` (by [@IvanSanchez](https://github.com/IvanSanchez), [#4711](https://github.com/Leaflet/Leaflet/pull/4711). -* Implement `bringToFront` and `bringToBack` when using `L.Canvas`, plus preventing other canvas glitches (by [@perliedman](https://github.com/perliedman)), [#5115](https://github.com/Leaflet/Leaflet/pull/5115). -* Add `minNativeZoom` option to `L.TileLayer`s. (by [@bb-juliogarcia](https://github.com/bb-juliogarcia)), [#5088](https://github.com/Leaflet/Leaflet/pull/5088). - -### Improvements - -* Improve performance when adding lots of `L.Path`s by refactoring away event logic (by [@IvanSanchez](https://github.com/IvanSanchez)) [#5054](https://github.com/Leaflet/Leaflet/pull/5054))]. -* Several minor documentation improvements by [@Jmuccigr](https://github.com/Jmuccigr), [@serdarkacka](https://github.com/serdarkacka), [@erickzhao](https://github.com/erickzhao), [@IvanSanchez](https://github.com/IvanSanchez), [@perliedman](https://github.com/perliedman), [@joukewitteveen](https://github.com/joukewitteveen). -* Code reorganization: Extensions for `L.Marker` and `L.Map` no longer have a separate file (by [@mourner](https://github.com/mourner)). -* Removed a duplicated unit test ([@yohanboniface](https://github.com/yohanboniface)). -* Accesibility improvements (ARIA/screenreader related) on map tiles (by [@patrickarlt](https://github.com/patrickarlt)) [#5092](https://github.com/Leaflet/Leaflet/pull/5092). - -## 1.0.1 (September 30, 2016) - -### Bug fixes - -* Fixed vector rendering regression in IE8 (by [@perliedman](https://github.com/perliedman)) [#4656](https://github.com/Leaflet/Leaflet/pull/4956). -* Fixed Webpack error when bundling Leaflet's CSS (by [@jefbarn](https://github.com/jefbarn)) [#4679](https://github.com/Leaflet/Leaflet/pull/4979). - -## 1.0.0 (September 26, 2016) - -### API changes - -* Remove deprecated `zoomanimated` option for `L.Popup`s (by [@fnicollet](https://github.com/fnicollet)) [#4699](https://github.com/Leaflet/Leaflet/pull/4699) - -### Improvements - -* Several minor fixes to the documentation (by [@IvanSanchez](https://github.com/IvanSanchez), [@alejo90](https://github.com/alejo90), [@ghybs](https://github.com/ghybs), [@JonasDralle](https://github.com/JonasDralle)) -* Add license to `bower.json` (by [@anotherredward](https://github.com/anotherredward)) [#4865](https://github.com/Leaflet/Leaflet/pull/4865) -* Allow creating tooltips without a source layer (by [@yohanboniface](https://github.com/yohanboniface)) [#4836](https://github.com/Leaflet/Leaflet/pull/4836) -* Detect `L.Icon` default path using CSS (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4605](https://github.com/Leaflet/Leaflet/pull/4605) - -### Bug fixes - -* Fix handling of `getScaleZoom` in some custom CRSs (by [@theashyster](https://github.com/theashyster)) [#4919](https://github.com/Leaflet/Leaflet/pull/4919) -* Guard `L.Path` event handlers against race conditions (by [@perliedman](https://github.com/perliedman) and [@IvanSanchez](https://github.com/IvanSanchez)) [#4855](https://github.com/Leaflet/Leaflet/pull/4855) [#4929](https://github.com/Leaflet/Leaflet/pull/4929) [#4838](https://github.com/Leaflet/Leaflet/pull/4838) -* In `L.GridLayer`s, wrap `tileBounds` when `noWrap` is false (by [@fyeah](https://github.com/fyeah)) [#4908](https://github.com/Leaflet/Leaflet/pull/4908) -* Fix `L.Path`'s `bringToFront()` behaviour in the Edge browser (by [@nikolai-b](https://github.com/nikolai-b)) [#4848](https://github.com/Leaflet/Leaflet/pull/4848) -* Remove spurious counting of event handlers (by [@perliedman](https://github.com/perliedman)) [#4842](https://github.com/Leaflet/Leaflet/pull/4842) -* Throw error on `getCenter()` when a `L.Polygon` has no map and thus no CRS (by [@snkashis](https://github.com/snkashis)) [#4820](https://github.com/Leaflet/Leaflet/pull/4820) -* Add a `_leaflet_id` to map containers to prevent error when removing a map twice (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4810](https://github.com/Leaflet/Leaflet/pull/4810) -* Do not fail when closing a tooltip which is not in a map (by [@yohanboniface](https://github.com/yohanboniface)) [#4937](https://github.com/Leaflet/Leaflet/pull/4937) - - -## 1.0-rc3 (August 5, 2016) - -### API changes -- `L.Tooltip` `offset` option now defaults to `[0, 0]` (by [@yohanboniface](https://github.com/yohanboniface)) [#4773](https://github.com/Leaflet/Leaflet/pull/4773) -- Event listeners are now always called in the order they have been registered, while until rc2 listeners with a context were all called before listeners without context (even if registered later), and the listeners with context were called in an unpredictable order (by [@yohanboniface](https://github.com/yohanboniface)) [#4769](https://github.com/Leaflet/Leaflet/pull/4769) - -### Improvements -- Added `oldLatLng` in `L.Marker` `drag` event (by [@snkashis](https://github.com/snkashis)) [#4752](https://github.com/Leaflet/Leaflet/pull/4752) - -### Bug fixes -- Fixed regression where event listeners where not always fired in the order of registration (by [@yohanboniface](https://github.com/yohanboniface)) [#4769](https://github.com/Leaflet/Leaflet/pull/4769) -- Fixed `L.Tooltip` zoom animation (by [@yohanboniface](https://github.com/yohanboniface)) [#4744](https://github.com/Leaflet/Leaflet/pull/4744) -- Fixed `layer.bindTooltip` crashing when called before adding the layer to the map (by [@yohanboniface](https://github.com/yohanboniface)) [#4779](https://github.com/Leaflet/Leaflet/pull/4779) -- Fixed regression in `L.Popup` autopaning (by [@yohanboniface](https://github.com/yohanboniface)) [#4768](https://github.com/Leaflet/Leaflet/pull/4768) -- Fixed non permanent `L.Tooltip` not being closed on touch when touching the map (by [@yohanboniface](https://github.com/yohanboniface)) [#4767](https://github.com/Leaflet/Leaflet/pull/4767) -- Fixed `popupopen` and `popupclose` not being fired when clicking on path with an open popup (by [@yohanboniface](https://github.com/yohanboniface)) [#4788](https://github.com/Leaflet/Leaflet/pull/4788) - - -## 1.0-rc2 (July 18, 2016) - -### API changes -* Make `L.Handler.enable`/`disable` return `this` (by [@yohanboniface](https://github.com/yohanboniface)) [#4708](https://github.com/Leaflet/Leaflet/pull/4708) -* Icon `size` option can now be initialised with a number (by [@rheh](https://github.com/rheh)) [#4608](https://github.com/Leaflet/Leaflet/pull/4608) -* Add `classname` option to `L.GridLayer` (by [@jayvarner](https://github.com/jayvarner)) [#4553](https://github.com/Leaflet/Leaflet/pull/4553) -* Consistent returns for `Map.addLayer` (by [@nathancahill](https://github.com/nathancahill)) [#4504](https://github.com/Leaflet/Leaflet/pull/4504) -* Create points from objects with `x` and `y` properties (by [@nathancahill](https://github.com/nathancahill)) [#4465](https://github.com/Leaflet/Leaflet/pull/4465) -* Add `updateWhenZooming` option to `L.GridLayer` (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4462](https://github.com/Leaflet/Leaflet/pull/4462) - -### Improvements -* Refactoring of events (by [@fab1an](https://github.com/fab1an) and [@perliedman](https://github.com/perliedman)) [#4697](https://github.com/Leaflet/Leaflet/pull/4697) -* Do not alter `popup.options.offset` when computing popup offset (fix #4645) (by [@yohanboniface](https://github.com/yohanboniface)) [#4662](https://github.com/Leaflet/Leaflet/pull/4662) -* Use different `L.Bounds` for "marking as prunable" and loading tiles (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4650](https://github.com/Leaflet/Leaflet/pull/4650) -* Added `L.Tooltip` class to display small tooltips on the map (by [@yohanboniface](https://github.com/yohanboniface)) [#3952](https://github.com/Leaflet/Leaflet/pull/3952) - -### Bug fixes -* Fixed `GridLayer`'s outer edge snapping to vertical center of map (fix #4702) (by [@yohanboniface](https://github.com/yohanboniface)) [#4704](https://github.com/Leaflet/Leaflet/pull/4704) -* Fixed scrollwheel zoom too fast in MS Edge (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4694](https://github.com/Leaflet/Leaflet/pull/4694) -* Use `pointer-events: visiblePainted` as fallback for IE <11 (by [@perliedman](https://github.com/perliedman)) [#4690](https://github.com/Leaflet/Leaflet/pull/4690) -* Avoid double borders on `abbr` in website (by [@brunob](https://github.com/brunob)) [#4663](https://github.com/Leaflet/Leaflet/pull/4663) -* Prevent firing map click when layer has popup (by [@jwoyame](https://github.com/jwoyame)) [#4603](https://github.com/Leaflet/Leaflet/pull/4603) -* Disable pointer events on popup tip (by [@jwoyame](https://github.com/jwoyame)) [#4599](https://github.com/Leaflet/Leaflet/pull/4599) -* Prevent `L.DomUtil.create()` from automatically setting a CSS class name (by [@MuellerMatthew](https://github.com/MuellerMatthew)) [#4563](https://github.com/Leaflet/Leaflet/pull/4563) -* Fix off-by-one bug in `Control.Layers._getLayer` (by [@ValentinH](https://github.com/ValentinH)) [#4561](https://github.com/Leaflet/Leaflet/pull/4561) -* Fix scrollwheel events zomming two levelz in Chrome by scaling down `getWheelDelta()` (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4538](https://github.com/Leaflet/Leaflet/pull/4538) -* Prevent event listeners from being called when all listeners are removed (by [@perliedman](https://github.com/perliedman)) [#4555](https://github.com/Leaflet/Leaflet/pull/4555) -* Don't prevent browser's touch scroll and/or zoom unless handlers are enabled (by [@perliedman](https://github.com/perliedman)) [#4552](https://github.com/Leaflet/Leaflet/pull/4552) -* Fixed `getBoundsZoom` with small size and padding (by [@dianjin](https://github.com/dianjin)) [#4532](https://github.com/Leaflet/Leaflet/pull/4532) -* Fixed `L.Control.Layers` in IE8 (by [@jieter](https://github.com/jieter)) [#4509](https://github.com/Leaflet/Leaflet/pull/4509) -* Fixed `TileLayer`'s retina logic when `zoomReverse` is enabled. (by [@perliedman](https://github.com/perliedman)) [#4503](https://github.com/Leaflet/Leaflet/pull/4503) -* Fixed `setMaxBounds` not resetting `maxBounds` when passing `null` argument (by [@yohanboniface](https://github.com/yohanboniface)) [#4494](https://github.com/Leaflet/Leaflet/pull/4494) -* Fixed canvas not filtering click event after drag (by [@yohanboniface](https://github.com/yohanboniface)) [#4493](https://github.com/Leaflet/Leaflet/pull/4493) -* Fixed `L.Control.removeLayer()` raising an error when trying to remove a layer not yet added (by [@jieter](https://github.com/jieter)) [#4487](https://github.com/Leaflet/Leaflet/pull/4487) -* Fixed disabling drag on click in IE11 (by [@perliedman](https://github.com/perliedman)) [#4479](https://github.com/Leaflet/Leaflet/pull/4479) -* Fixed `L.Evented.listens()` on removed event handlers, #4474 (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4476](https://github.com/Leaflet/Leaflet/pull/4476) -* Better handling of `markerZoomAnimation` event hooks (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4460](https://github.com/Leaflet/Leaflet/pull/4460) - - -## 1.0-rc1 (April 18, 2016) - -### API changes -* Make `L.Control.Layers.collapse`/`expand` public methods (by [@yohanboniface](https://github.com/yohanboniface)) [#4370](https://github.com/Leaflet/Leaflet/pull/4370) -* Make `L.latLngBounds` factory return an empty bounds with no argument (by [@yohanboniface](https://github.com/yohanboniface)) [#4368](https://github.com/Leaflet/Leaflet/pull/4368) -* `Map.fitBounds` now raises an error if bounds are not valid (by [@theotow](https://github.com/theotow)) [#4353](https://github.com/Leaflet/Leaflet/pull/4353) -* Temporarily support legacy options on `L.Circle` (by [@JrFolk](https://github.com/JrFolk)) [#4290](https://github.com/Leaflet/Leaflet/pull/4290) -* Throw error on `NaN` circle radius (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4237](https://github.com/Leaflet/Leaflet/pull/4237) -* `L.Class.include()` & `mergeOptions()` now return `this` (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4246](https://github.com/Leaflet/Leaflet/pull/4246) -* Consistent GeoJSON casing (by [@yohanboniface](https://github.com/yohanboniface)) [#4108](https://github.com/Leaflet/Leaflet/pull/4108) -* Move `L.LatLng.equals` to `L.CRS.equals`. (by [@perliedman](https://github.com/perliedman)) [#4074](https://github.com/Leaflet/Leaflet/pull/4074) -* Make non-interactive markers not firing pointer events (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3937](https://github.com/Leaflet/Leaflet/pull/3937) - - -### Improvements -* Give popups an id (by [@tylercubell](https://github.com/tylercubell)) [#4355](https://github.com/Leaflet/Leaflet/pull/4355) -* Support `{-y}` in tile layer urls (by [@jieter](https://github.com/jieter)) [#4337](https://github.com/Leaflet/Leaflet/pull/4337) -* Support `dashArray` path option in canvas (by [@gommo](https://github.com/gommo)) [#4173](https://github.com/Leaflet/Leaflet/pull/4173) -* Clean up `navigator.pointerEnabled` (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4287](https://github.com/Leaflet/Leaflet/pull/4287) -* Use array in `L.Control.Layers` internally (by [@jieter](https://github.com/jieter)) [#4227](https://github.com/Leaflet/Leaflet/pull/4227) -* Implement `L.Browser.edge` (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4143](https://github.com/Leaflet/Leaflet/pull/4143) -* Optimized icons (by [@vtduncan](https://github.com/vtduncan)) [#4124](https://github.com/Leaflet/Leaflet/pull/4124) -* Cast `L.DivIcon.bgPos` option to `L.Point` (by [@perliedman](https://github.com/perliedman)) [#4090](https://github.com/Leaflet/Leaflet/pull/4090) -* Switch to wheel event where available (by [@mourner](https://github.com/mourner)) [#3653](https://github.com/Leaflet/Leaflet/pull/3653) -* Fractional zoom controls (by [@IvanSanchez](https://github.com/IvanSanchez) and [@hyperknot](https://github.com/hyperknot)) [#3523](https://github.com/Leaflet/Leaflet/pull/3523) -* Added click tolerance also for non-touch devices (by [DavidUv](https://github.com/DavidUv)) [#4396](https://github.com/Leaflet/Leaflet/pull/4396) - -### Bug fixes -* Fixed an edge case on `Map.fitBounds` (by [@perliedman](https://github.com/perliedman)) [#4377](https://github.com/Leaflet/Leaflet/pull/4377) -* Fixed an edge case bug in `flyTo` (by [@hyperknot](https://github.com/hyperknot)) [#4376](https://github.com/Leaflet/Leaflet/pull/4376) -* Use mean earth radius for distance calculation in `L.CRS.Earth`. (by [@perliedman](https://github.com/perliedman)) [#4369](https://github.com/Leaflet/Leaflet/pull/4369) -* Fixed zoom event fired twice (by [@perliedman](https://github.com/perliedman)) [#4367](https://github.com/Leaflet/Leaflet/pull/4367) -* Initialize canvas dash on init. Check that canvas supports `setLineDash`. (by [@perliedman](https://github.com/perliedman)) [#4364](https://github.com/Leaflet/Leaflet/pull/4364) -* Do not calculate inverted y coords for CRSes with infinite: true (by [@jieter](https://github.com/jieter)) [#4344](https://github.com/Leaflet/Leaflet/pull/4344) -* Fixed zoom handling on `Map.TouchZoom` (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4340](https://github.com/Leaflet/Leaflet/pull/4340) -* Fixed `this._times.length` undefined in `Map.Drag.js` (by [@LucasMouraDeOliveira](https://github.com/LucasMouraDeOliveira)) [#4324](https://github.com/Leaflet/Leaflet/pull/4324) -* Fixed simulated click handling in `L.Path` (by [@elkami12](https://github.com/elkami12)) [#4314](https://github.com/Leaflet/Leaflet/pull/4314) -* Fixed attribution text not removed when Layer is removed from map (by [@dr-itz](https://github.com/dr-itz)) [#4293](https://github.com/Leaflet/Leaflet/pull/4293) -* Fixed bug when adding/removing a layer from `L.Control.Layer` that is not on the map (by [@errebenito](https://github.com/errebenito)) [#4280](https://github.com/Leaflet/Leaflet/pull/4280) -* Fixed `Map.attributionControl` only set on `addInitHook` (by [@snkashis](https://github.com/snkashis)) [#4263](https://github.com/Leaflet/Leaflet/pull/4263) -* Check for `e.originalEvent` in `DomUtil._filterclick` (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4256](https://github.com/Leaflet/Leaflet/pull/4256) -* Stop drag propagation on `L.Draggable` (by [@turban](https://github.com/turban)) [#4250](https://github.com/Leaflet/Leaflet/pull/4250) -* Fixed error when quickly removing a layer just added (by [@hyperknot](https://github.com/hyperknot)) [#4244](https://github.com/Leaflet/Leaflet/pull/4244) -* Fixed not resetting properly on `Map.stop` (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4229](https://github.com/Leaflet/Leaflet/pull/4229) -* Fixed conflict between `Map.fadeAnimation` and `GridLayer.opacity` (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4228](https://github.com/Leaflet/Leaflet/pull/4228) -* Fix fractional zoom calculation (by [@hyperknot](https://github.com/hyperknot)) [#4224](https://github.com/Leaflet/Leaflet/pull/4224) -* Better cleanup of L.Control.Layers, fixes [#4213](https://github.com/Leaflet/Leaflet/pull/4213) (plus unit tests) (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4214](https://github.com/Leaflet/Leaflet/pull/4214) -* Fixed transform issue when not `L.Browser.any3d` (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4212](https://github.com/Leaflet/Leaflet/pull/4212) -* Fixed fractional zoom controls broken when initial zoom isn't specified (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4209](https://github.com/Leaflet/Leaflet/pull/4209) -* Fix extra tiles usage (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4193](https://github.com/Leaflet/Leaflet/pull/4193) -* Sanity check: test `pxBounds` validity before using it (by [@yohanboniface](https://github.com/yohanboniface)) [#4191](https://github.com/Leaflet/Leaflet/pull/4191) -* Disable event defaults when disabling scroll propagation (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4160](https://github.com/Leaflet/Leaflet/pull/4160) -* Fixed precision issues in `L.Circle` radius (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4133](https://github.com/Leaflet/Leaflet/pull/4133) -* Workarounded some touch-capable browsers firing `dblclick` instead of touch events (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4131](https://github.com/Leaflet/Leaflet/pull/4131) -* Use all projected coords when calculating `L.Polyline`'s pixel bounds. (by [@perliedman](https://github.com/perliedman)) [#4114](https://github.com/Leaflet/Leaflet/pull/4114) -* Fixed removing all events when passing an `undefined` property (by [@robertleeplummerjr](https://github.com/robertleeplummerjr)) [#4113](https://github.com/Leaflet/Leaflet/pull/4113) -* Fixed retina URL computation (by [@hyperknot](https://github.com/hyperknot)) [#4110](https://github.com/Leaflet/Leaflet/pull/4110) -* Fire `tileunload` for all unloading of tiles (by [@tcoats](https://github.com/tcoats)) [#4099](https://github.com/Leaflet/Leaflet/pull/4099) -* Fixed duplicated code in `L.GridLayer.retainParent()` (by [@jblarsen](https://github.com/jblarsen)) [#4094](https://github.com/Leaflet/Leaflet/pull/4094) -* Make sure to always reset `_enforcingBounds`. (by [@perliedman](https://github.com/perliedman)) [#4089](https://github.com/Leaflet/Leaflet/pull/4089) -* Fix bug with max bounds and custom projections (by [@OleLaursen](https://github.com/OleLaursen)) [#4078](https://github.com/Leaflet/Leaflet/pull/4078) -* When limiting center to bounds, ignore offsets less than a pixel. (by [@perliedman](https://github.com/perliedman)) [#4077](https://github.com/Leaflet/Leaflet/pull/4077) -* Fixed bug for hover event between circle overlapping polygon on canvas (by [@fimietta](https://github.com/fimietta)) [#4072](https://github.com/Leaflet/Leaflet/pull/4072) -* Fixed but where `L.Control.Layers` where calling `map._size` instead of `getSize()` (by [@Brobin](https://github.com/Brobin)) [#4063](https://github.com/Leaflet/Leaflet/pull/4063) -* Round new map position before animating pan (by [@RLRR](https://github.com/RLRR)) [#4046](https://github.com/Leaflet/Leaflet/pull/4046) -* Fixed overlayed circles not responding to mouse events in canvas (by [@Deftwun](https://github.com/Deftwun)) [#4033](https://github.com/Leaflet/Leaflet/pull/4033) -* Fixed GeoJSON `resetStyle` (by [@yohanboniface](https://github.com/yohanboniface)) [#4028](https://github.com/Leaflet/Leaflet/pull/4028) -* Fixed popup toggle on marker click (by [@yohanboniface](https://github.com/yohanboniface)) [#4016](https://github.com/Leaflet/Leaflet/pull/4016) -* Fixed event target fallbacking to map after marker drag (fix [#3971](https://github.com/Leaflet/Leaflet/pull/3971)) (by [@yohanboniface](https://github.com/yohanboniface)) [#4010](https://github.com/Leaflet/Leaflet/pull/4010) -* Fixed `maxZoom` not honoring 0 (by [@simsibimsiwimsi](https://github.com/simsibimsiwimsi)) [#4000](https://github.com/Leaflet/Leaflet/pull/4000) -* Skip `L.GridLayer._updateLevels()` when out of min/max zoom (prevents IE8 exceptions) (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3999](https://github.com/Leaflet/Leaflet/pull/3999) -* `L.DomUtil.getPosition()` should return a fallback value (for VML in IE8) (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3998](https://github.com/Leaflet/Leaflet/pull/3998) -* `L.Marker`: init interaction regardless of new icon or not (by [@celadevra](https://github.com/celadevra)) [#3978](https://github.com/Leaflet/Leaflet/pull/3978) -* Fix `interactive=false` not taken into account for canvas (by [@yohanboniface](https://github.com/yohanboniface)) [#3956](https://github.com/Leaflet/Leaflet/pull/3956) -* Fix canvas path disappearing on animation (by [@klaftertief](https://github.com/klaftertief)) [#3950](https://github.com/Leaflet/Leaflet/pull/3950) -* Only check for moving draggable in canvas renderer when map is draggable (by [@klaftertief](https://github.com/klaftertief)) [#3942](https://github.com/Leaflet/Leaflet/pull/3942) -* Fix SVG Dragging issues in IE and Edge (by [@perliedman](https://github.com/perliedman)) [#4382](https://github.com/Leaflet/Leaflet/pull/4382) -* Fix click not working on inputs in controls in IE 11 (by [@perliedman](https://github.com/perliedman)) [#4371](https://github.com/Leaflet/Leaflet/pull/4371) -* Make drag and touch zoom handlers insensitive to order of event handlers (by [@perliedman](https://github.com/perliedman)) [#4387](https://github.com/Leaflet/Leaflet/pull/4387) - -### Other -* Added a Code of Conduct (by [@mourner](https://github.com/mourner)) [#4142](https://github.com/Leaflet/Leaflet/pull/4142) -* Dual 1.0 & 0.7 docs to gh-pages (by [@IvanSanchez](https://github.com/IvanSanchez)) [#4085](https://github.com/Leaflet/Leaflet/pull/4085) -* 🍂doc (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3916](https://github.com/Leaflet/Leaflet/pull/3916) -* A lot of documentation improvements (by [@nathancahill](https://github.com/nathancahill)) [#4418](https://github.com/Leaflet/Leaflet/pull/4418), [#4419](https://github.com/Leaflet/Leaflet/pull/4419), [#4423](https://github.com/Leaflet/Leaflet/pull/4423), [#4425](https://github.com/Leaflet/Leaflet/pull/4425) and [a lot more](https://github.com/Leaflet/Leaflet/pulls?q=is%3Apr+author%3Anathancahill+is%3Aclosed) -* Replace links to google groups with ones to GIS StackExchange (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3886](https://github.com/Leaflet/Leaflet/pull/3886) - - -## 1.0-beta2 (October 14, 2015) - -Beta 2 fixes over 50 bugs that were reported by users trying out beta 1. The vast majority of changes are small fixes to problems that are triggered in very specific situations or conditions, a few API consolidation changes, and a few browser workarounds. - -### API changes - -* `L.circle` now accepts `radius` as an option (like `L.circleMarker`) rather than a second argument (by [@IvanSanchez](https://github.com/IvanSanchez)) - -### Improvements - -* Implemented canvas optimizations on mousehover interactions (by [@philippelatulippe](https://github.com/philippelatulippe)) [#3076](https://github.com/Leaflet/Leaflet/issues/3076) -* Improved drag behaviour by preventing a `preclick` event during drag (by [@yohanboniface](https://github.com/yohanboniface)) [#3632](https://github.com/Leaflet/Leaflet/issues/3632) -* Implemented `L.ImageOverlay.setBounds()` and fixed image overlay initialization (by [@fminuti](https://github.com/fminuti)) [#3680](https://github.com/Leaflet/Leaflet/pull/3680) -* Implemented draggable items to fire `mousedown` events (by [@yohanboniface](https://github.com/yohanboniface)) [#3682](https://github.com/Leaflet/Leaflet/pull/3682) -* Changed detection of browsers capable of `msPointer` events (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3684](https://github.com/Leaflet/Leaflet/pull/3684) -* Implemented latitude truncation for spherical mercator projection (by [@perliedman](https://github.com/perliedman)) [#3700](https://github.com/Leaflet/Leaflet/issues/3700) -* Armored against browsers not implementing `Geolocation.clearWatch()` [#3707](https://github.com/Leaflet/Leaflet/issues/3707) -* Implemented generation of sourcemaps when building and minifying source files (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3723](https://github.com/Leaflet/Leaflet/pull/3723) -* Added `bringToFront` and `bringToBack` to popups (by [@danzel](https://github.com/danzel)). [#3908](https://github.com/Leaflet/Leaflet/pull/3908) [#3307](https://github.com/Leaflet/Leaflet/issues/3813) -* Multiply offset by 3 on keyboard pan when shift key is pressed (by [@yohanboniface](https://github.com/yohanboniface)) [#3921](https://github.com/Leaflet/Leaflet/pull/3921) - -### Bug fixes - -* Fixed event propagation on double finger tap (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3532](https://github.com/Leaflet/Leaflet/issues/3532) -* Fixed style changes on re-added layers (by [@wpf500](https://github.com/wpf500)) [#3547](https://github.com/Leaflet/Leaflet/pull/3547) -* Fixed `preventOutline` exceptions [#3625](https://github.com/Leaflet/Leaflet/issues/3625) -* Fixed a box zoom regression bug [#3633](https://github.com/Leaflet/Leaflet/issues/3633) -* Fixed `contextmenu` behaviour when there are no event listeners (by [@yohanboniface](https://github.com/yohanboniface)) [#3638](https://github.com/Leaflet/Leaflet/issues/3638) -* Fixed map controls not showing on top of map layers (by [@patrickarlt](https://github.com/patrickarlt)) [#3644](https://github.com/Leaflet/Leaflet/pull/3644) -* Fixed display of marker images with `max-width` (by [@davidjb](https://github.com/davidjb)) [#3647](https://github.com/Leaflet/Leaflet/pull/3647) -* Fixed `mouseout` and `mouseover` event bubbling (by [@yohanboniface](https://github.com/yohanboniface)) [#3648](https://github.com/Leaflet/Leaflet/issues/3648) [#3797](https://github.com/Leaflet/Leaflet/issues/3797) [#3708](https://github.com/Leaflet/Leaflet/issues/3708) -* Fixed a layer control bug when removing layers (by [@davidlukerice](https://github.com/davidlukerice)) [#3651](https://github.com/Leaflet/Leaflet/pull/3651) -* Fixed pan and zoom animations interacting with each other [#3355](https://github.com/Leaflet/Leaflet/issues/3355) [#3655](https://github.com/Leaflet/Leaflet/issues/3655) -* Fixed a regression bug in canvas renderer when removing layers [#3661](https://github.com/Leaflet/Leaflet/issues/3661) -* Remove a workaround for legacy Android 2 browsers [#2282](https://github.com/Leaflet/Leaflet/issues/2282) -* Fixed VML vector rendering in IE8 when removing and re-adding layers (by [@fminuti](https://github.com/fminuti)) [#2809](https://github.com/Leaflet/Leaflet/issues/2809) -* Fixed `flyTo` animations when the map center doesn't change (by [@fminuti](https://github.com/fminuti)) [#3663](https://github.com/Leaflet/Leaflet/pull/3663) -* Fixed fade animations for semitransparent tile layers (by [@w8r](https://github.com/w8r)) [#3671](https://github.com/Leaflet/Leaflet/pull/3671) -* Fixed behaviour of the `baselayerchange` event (by [@yohanboniface](https://github.com/yohanboniface)) [#3677](https://github.com/Leaflet/Leaflet/issues/3677) -* Fixed marker icon handling during a marker drag (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3687](https://github.com/Leaflet/Leaflet/issues/3687) -* Fixed a IE 11 map container visibility bug (by [@fminuti](https://github.com/fminuti)) [#2788](https://github.com/Leaflet/Leaflet/issues/2788) -* Prevented dragging interactions while a map zoom animation is running (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3692](https://github.com/Leaflet/Leaflet/issues/3692) -* Implement disabling layers in the layer control when they are unavailable at the current zoom level (by [@IvanSanchez](https://github.com/IvanSanchez)) [#252](https://github.com/Leaflet/Leaflet/issues/252) -* Refactored `L.Util.requestAnimFrame` definition (by [@fminuti](https://github.com/fminuti)) [#3703](https://github.com/Leaflet/Leaflet/issues/3703) -* Fixed an edge case of `L.Circle.getBounds()` (by [@knabar](https://github.com/knabar)) [#3776](https://github.com/Leaflet/Leaflet/pull/3776) -* Fixed `Rectangle.setBounds()` return value (by [@IvanSanchez](https://github.com/IvanSanchez)) https://github.com/Leaflet/Leaflet/commit/e698f641afadd4a0b412a6c9e065a6dbfbe16f44 -* Fixed event firing order when opening a popup (by [@yohanboniface](https://github.com/yohanboniface)) [#3745](https://github.com/Leaflet/Leaflet/issues/3745) -* Fixed tile layer loading when dragging then immediately pinch-zooming the map (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3814](https://github.com/Leaflet/Leaflet/issues/3814) -* Work around browser limitations when panning the map too far away (by [@yohanboniface](https://github.com/yohanboniface) and [@IvanSanchez](https://github.com/IvanSanchez)) [#3608](https://github.com/Leaflet/Leaflet/issues/3608) -* Fixed popup text selection and touch events for IE 10 (by [@danzel](https://github.com/danzel)) [#3804](https://github.com/Leaflet/Leaflet/issues/3804) -* Fixed tile layer ordering when `maxZoom` is set (by [@patrickarlt](https://github.com/patrickarlt)) [#3721](https://github.com/Leaflet/Leaflet/issues/3721) -* Fixed scale behaviour on non-standard CRSs (by [@javimolla](https://github.com/patrickarlt), special thanks to [Your First PR](https://yourfirstpr.github.io/)) [#2990](https://github.com/Leaflet/Leaflet/issues/2990) -* Fixed rendering of off-screen vector layers (by [@yohanboniface](https://github.com/yohanboniface)) [#3836](https://github.com/Leaflet/Leaflet/issues/3836) -* Fixed rendering of intersecting vector layers (by [@yohanboniface](https://github.com/yohanboniface)) [#3583](https://github.com/Leaflet/Leaflet/issues/3583) -* Enforced stricter code linting -* Fixed disabled drag handlers not being able to be re-enabled (by [@yohanboniface](https://github.com/yohanboniface)) [#3825](https://github.com/Leaflet/Leaflet/issues/3825) -* Fixed panning outside the map bounds (by [@yohanboniface](https://github.com/yohanboniface)) [#3878](https://github.com/Leaflet/Leaflet/issues/3878) -* Worked around IE 11 not focusing the map using keyboard (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3772](https://github.com/Leaflet/Leaflet/issues/3772) -* Fixed vector layer positioning during a zoom animation in low zoom (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3769](https://github.com/Leaflet/Leaflet/issues/3769) -* Implemented `noWrap` option in `L.GridLayer` (by [@IvanSanchez](https://github.com/IvanSanchez)) [#3691](https://github.com/Leaflet/Leaflet/issues/3691) -* Fixed popups panning the map while running another pan animation (by [@yohanboniface](https://github.com/yohanboniface)) [#3744](https://github.com/Leaflet/Leaflet/issues/3744) -* Fixed uncorrect length of scale control due to CSS styles (by [@yohanboniface](https://github.com/yohanboniface)) [#3668](https://github.com/Leaflet/Leaflet/issues/3668) -* Fixed detection of default image path for icons (by [@ilfa](https://github.com/ilfa)) [#3770](https://github.com/Leaflet/Leaflet/pull/3770) -* Various Canvas events fixes (by [@yohanboniface](https://github.com/yohanboniface)) [#3917](https://github.com/Leaflet/Leaflet/pull/3917) -* Fix touch scroll in layers control (by [@yohanboniface](https://github.com/yohanboniface)) [#2882](https://github.com/Leaflet/Leaflet/issues/2882) -* Fix duration not passed through from setView to panBy (by [@yohanboniface](https://github.com/yohanboniface)) [#3300](https://github.com/Leaflet/Leaflet/issues/3300) - - -## 1.0-beta1 (July 14, 2015) - -The first beta of the huge, long-awaited Leaflet 1.0 release. - -This version contains a lot of beneficial but potentially breaking changes (especially if you're a plugin author), so please read through the changes carefully if your code breaks after upgrading. - -### Vectors API improvements - -Leaflet vector layers rendering got a major rewrite, making it possible to switch between rendering backends (Canvas, SVG) dynamically (and even use both for different layers at the same time), have more than one physical pane for vector layers, significantly improving performance, adding Canvas retina support, getting rid of ugly hacks and generally making the code much cleaner. Main PR [#2290](https://github.com/Leaflet/Leaflet/pull/2290). - -* Added `Renderer` layer (inherited by SVG/Canvas implementations) that handles renderer bounds and zoom animation. -* Added `SVG` & `Canvas` classes that now contain all renderer-specific code for vector layers and can be added as layers to the map. -* All vector layer classes (`Path`, `Polyline`, etc.) now don't contain any renderer-specific code and instead can be passed a renderer layer to use as `renderer` in options; -* Removed `MultiPolyline` and `MultiPolygon` classes since multiple rings are now handled by `Polyline` and `Polygon` classes respectively. Layers with multiple rings now perform much better (since each is now physically a single path object instead of being a `FeatureGroup` of layers). -* **Dramatically improved performance of interactive Canvas layers**. Mouse events work much faster (due to improved hit detection algorithms), and layers get updated many times faster (with partial redraws instead of redrawing the whole Canvas). -* **Dramatically improved performance of interactive SVG layers** (e.g. creating a big GeoJSON layer and adding to a map got 3x faster while taking 2.5x less memory). [#2240](https://github.com/Leaflet/Leaflet/issues/2240) [#2315](https://github.com/Leaflet/Leaflet/issues/2315) -* Added retina support for Canvas layers. -* Improved default vector layer styles. -* Added `Polyline` and `Polygon` `getCenter` for getting centroids. -* Respectively, improved `Polyline` and `Polygon` popup positioning when calling `openPopup`. -* Improved `Polyline`/`Polygon` `getBounds` to be cached (so it works much faster). -* Changed `Circle` to inherit from `CircleMarker` and not the other way. -* Fixed `GeoJSON` `resetStyle` to work properly in case `style` option wasn't set. -* Fixed a bug where map fired `moveend` when updating Canvas layers. -* Removed `Polyline` and `Polygon` `spliceLatLngs` method (just use `setLatLngs` instead). -* Changed `Polygon` `getLatLngs` to always return an array of rings (nested array) (by [@yohanboniface](https://github.com/yohanboniface)). [#2618](https://github.com/Leaflet/Leaflet/issues/2618) [#3386](https://github.com/Leaflet/Leaflet/pull/3386) [Leaflet/Leaflet#3279](https://github.com/Leaflet/Leaflet/pull/3279) [#2648](https://github.com/Leaflet/Leaflet/issues/2648) -* Added the ability to specify a custom pane for vector layers (making it possible to easily do stacks like vectors-tiles-vectors with proper z-index order) (by [@Jakobud](https://github.com/Jakobud)). [#3266](https://github.com/Leaflet/Leaflet/pull/3266) [#2786](https://github.com/Leaflet/Leaflet/pull/2786) -* Added vector layers `fillRule` option (by [@bullgare](https://github.com/bullgare)). [#2834](https://github.com/Leaflet/Leaflet/pull/2834) -* Removed `L_PREFER_CANVAS` global switch and added `Map` `preferCanvas` option instead (by [@yohanboniface](https://github.com/yohanboniface)). [#3623](https://github.com/Leaflet/Leaflet/pull/3623) - -### Layers API improvements - -All Leaflet layers (including markers, popups, tile and vector layers) have been refactored to have a common parent, `Layer` class, that shares the basic logic of adding and removing. The leads to the following changes (main PR [#2266](https://github.com/Leaflet/Leaflet/pull/2266)): - -* Added `Layer` class which all layers added to a map should inherit from. -* Added `add` and `remove` events to all layers. -* Added `remove` method to layers and controls (`marker.remove()` is now equivalent to `map.removeLayer(marker)`). -* Improved performance of adding and removing layers. -* Added `pane` option to all layers that can be changed (e.g. you can set `pane: 'overlayPane'` to a tile layer). -* Added `map` `createPane` method for custom panes. [#1742](https://github.com/Leaflet/Leaflet/issues/1742) -* Simplified map panes — removed `objectsPane`, all panes are on the same level now. -* Added `shadowPane` option to markers as well. -* Added `getEvents` method to all layers that returns an `{event: listener, ...}` hash; layers now manage its listeners automatically without having to do this in `onAdd`/`onRemove`. -* Added `togglePopup`, `setPopupContent`, `getPopup`, `isPopupOpen` methods to all layers. [#2279](https://github.com/Leaflet/Leaflet/issues/2279) [#2292](https://github.com/Leaflet/Leaflet/issues/2292) -* Improved performance of adding/removing layers with layers control present (instead of listening to any layer add/remove, the control only listens to layers added in configuration). -* Fixed `FeatureGroup` `getBounds` to work correctly when containing circle markers. -* Removed `Map` `tilelayersload` event. -* Removed `Popup` `open` and `close` events in favor of `add` and `remove` for consistency. -* Moved all layer-related logic in `Map.js` to `Layer.js`. -* Improved `FeatureGroup` `bindPopup` to accept a function for generating popup content, significantly improving memory footprint when adding popups to a huge number of layers (by [@patrickarlt](https://github.com/patrickarlt)). [#3109](https://github.com/Leaflet/Leaflet/pull/3109) [#3059](https://github.com/Leaflet/Leaflet/pull/3059) -* Added `ImageOverlay` interactivity (mouse events, etc.) (by [@snkashis](https://github.com/snkashis)). [#3009](https://github.com/Leaflet/Leaflet/pull/3009) [#1727](https://github.com/Leaflet/Leaflet/issues/1727) -* Added `ImageOverlay` `getBounds` (by [@brunob](https://github.com/brunob)). [#2848](https://github.com/Leaflet/Leaflet/pull/2848) -* Renamed `clickable` option to `interactive` (by [@AndriiHeonia](https://github.com/AndriiHeonia)). [#2838](https://github.com/Leaflet/Leaflet/pull/2838) [#2499](https://github.com/Leaflet/Leaflet/issues/2499) -* Changed the default z-index of panes to be bigger, leaving more room for customization (by [@patrickarlt](https://github.com/patrickarlt)). [#3591](https://github.com/Leaflet/Leaflet/pull/3591) -* Improved DOM event bubbling mechanism for layers (by [@yohanboniface](https://github.com/yohanboniface)). [Leaflet/Leaflet#3307](https://github.com/Leaflet/Leaflet/pull/3307) [#3450](https://github.com/Leaflet/Leaflet/pull/3450) [#3307](https://github.com/Leaflet/Leaflet/pull/3307) -* Added `nonBubblingEvents` option to layers (by [@yohanboniface](https://github.com/yohanboniface)). [#3605](https://github.com/Leaflet/Leaflet/pull/3605) [#3307](https://github.com/Leaflet/Leaflet/pull/3307) [#3604](https://github.com/Leaflet/Leaflet/issues/3604) - -In addition, layer events implementation was rewritten to use **event delegation**, significantly improving add/remove performance and memory footprint. [#3032](https://github.com/Leaflet/Leaflet/pull/3032) [#46](https://github.com/Leaflet/Leaflet/issues/46) - -### TileLayer & Projections API improvements - -TileLayer code and everything projections-related has undergone a major refactoring, documented in PR [#2247](https://github.com/Leaflet/Leaflet/pull/2247). It includes the following changes (in addition to much cleaner and simpler code): - -#### TileLayer API improvements - -These changes make implementing custom grid-like layers for Leaflet much easier. - -* Moved most of the `TileLayer` logic into the new `GridLayer` class (which `TileLayer` now inherits, extending it with logic specific to tile servers). -* Removed `TileLayer.Canvas` in favor of the much more flexible and powerful `GridLayer`. -* Improved tile wrapping and bounding logic in `TileLayer` to work transparently and completely depent on the CRS used; removed the need for `TileLayer` hacks when using custom projections. -* Added non-square tiles support (by [@IvanSanchez](https://github.com/IvanSanchez)). [#3573](https://github.com/Leaflet/Leaflet/pull/3573) [#3570](https://github.com/Leaflet/Leaflet/issues/3570) -* Removed `url` property in `tileload` and `tileloadstart` events (get it through `tile.src`). - -#### Projections API improvements - -These changes were targeted at removing any hardcoded projection-specific logic accross Leaflet classes, making it transparent and driven by the chosen CRS. They make using Leaflet with custom projections (including flat maps) much easier, and remove the need for ugly hacks in the [Proj4Leaflet](https://github.com/kartena/Proj4Leaflet) plugin. - -* Added `CRS.Earth` which serves as a base for all Earth-based CRS (`EPSG3857` etc.). [#2345](https://github.com/Leaflet/Leaflet/pull/2345) -* Added `Projection` `bounds` property that defines bounds for different projections (`Mercator`, etc.) in projected coordinates (by [@perliedman](https://github.com/perliedman)). -* Added `CRS` `wrapLat` and `wrapLng` properties which define whether the world wraps on a given axis and in what range. Set as `[-180, 180]` for `EPSG:3857`, `EPSG:4326`, `EPSG:3395` by default. -* Added `CRS` and `Map` `wrapLatLng` (the latter depends on the chosen CRS). -* Added `CRS` `infinite` property that disables boundaries (the world can go on infinitely in any direction), default for `CRS.Simple`. -* Added `CRS` `getProjectedBounds` and `Map` `getPixelWorldBounds` methods that returns world bounds in projected coordinates depending on zoom (derived from `Projection` `bounds`) (by [@perliedman](https://github.com/perliedman)). -* Added `CRS` `unproject` method that converts coordinates in CRS-dependent units into `LatLng` coordinates (by [@sowelie](https://github.com/sowelie)). -* Added `Map` `distance(latlng1, latlng2)` method that takes CRS into account and works with flat projections. [#2345](https://github.com/Leaflet/Leaflet/pull/2345) [#1442](https://github.com/Leaflet/Leaflet/issues/1442) -* Improved `Circle` to be approximated with an ellipse in Earth-based projections. [#2345](https://github.com/Leaflet/Leaflet/pull/2345) -* Fixed `EPSG:4326` to have correct tile pyramid (2x1 tiles at root). -* Fixed `Projection.SphericalMercator` to project to meter units (by [@calvinmetcalf](https://github.com/calvinmetcalf)). -* Fixed `Map` `worldCopyJump` option to work for other projections. -* Fixed `Circle` to work with flat projections. [#2345](https://github.com/Leaflet/Leaflet/pull/2345) [#1465](https://github.com/Leaflet/Leaflet/issues/1465) -* Fixed scale control precision in non-EPSG:3857 projections. [#2345](https://github.com/Leaflet/Leaflet/pull/2345) -* Fixed `ImageOverlay` not working properly in some non-standard projections. [#3011](https://github.com/Leaflet/Leaflet/issues/3011) - - -### Animations improvements and fractional zoom - -Animation code in Leaflet had undergone a major rewrite (main PR: [#2382](https://github.com/Leaflet/Leaflet/pull/2382)), bringing improvements such as: - -- Multi-level tile buffering for more seamless zooming experience with less flickering -- Optimal path animation (`map.flyTo`) for zooming to a particular place in a curve (simultaneously zooming and panning) -- Fractional zoom support — now you can do things like `map.setZoom(12.45)` and it just works. -- Layers now rely on `zoom` event in addition to `viewreset` for frame-by-frame zoom animations. [#3278](https://github.com/Leaflet/Leaflet/pull/3278) - -### UX improvements - -* Improved panning inertia behavior so that there are no tearing during animation when panning around quickly. [#2360](https://github.com/Leaflet/Leaflet/issues/2360) -* Improved inertial scrolling to have a nicer, more natural feel (by [@RickMohr](https://github.com/RickMohr)). [Leaflet/Leaflet#3063](https://github.com/Leaflet/Leaflet/pull/3063) [#3063](https://github.com/Leaflet/Leaflet/pull/3063) [#3062](https://github.com/Leaflet/Leaflet/issues/3062) [#2987](https://github.com/Leaflet/Leaflet/issues/2987) -* Added popup fade out animation. -* Improved keyboard support to ignore keystrokes with modifier keys (Ctrl, Alt, Meta) to not interfere with OS shortcuts. -* Made popup to close when pressing Escape (by [@snkashis](https://github.com/snkashis)). [#951](https://github.com/Leaflet/Leaflet/issues/951) [#3000](https://github.com/Leaflet/Leaflet/pull/3000) -* Improved keyboard zoom to zoom by 3 levels if shift key is pressed (by [@yohanboniface](https://github.com/yohanboniface)). [#3024](https://github.com/Leaflet/Leaflet/pull/3024) -* Improved layers control to become scrollable when there are too many layers (by [@rowanwins](https://github.com/rowanwins)). [#3571](https://github.com/Leaflet/Leaflet/pull/3571) [#3167](https://github.com/Leaflet/Leaflet/issues/3167) - -### Misc. performance improvements - -* Significantly [improved](http://jsperf.com/leaflet-parsefloat-in-latlng/2) `LatLng` creation performance (8x). -* Improved performance of layer objects construction. -* Significantly improved `FeatureGroup` (and correspondingly `GeoJSON`) layer adding and events performance (about 10x) by implementing a much better event propagation mechanism. [#2311](https://github.com/Leaflet/Leaflet/pull/2311) -* Improved Leaflet events and DOM events memory footprint. -* Improved `Evented` `off` performance by about 2 times. - -### Other breaking API changes - -* Changed `DomUtil` `off` to require `context` attribute if you remove a listener that was previously added with a particular context. -* Removed `DomUtil.getViewportOffset` method as it is no longer necessary. -* Removed `DomUtil` `getTranslateString` and `getScaleString` methods. -* Removed `DomUtil` `documentIsLtr` method. -* Removed `LatLng` `RAD_TO_DEG`, `DEG_TO_RAD` and `MAX_MARGIN` constants. -* Renamed `Util.limitExecByInterval` to `Util.throttle`. - -### Other API improvements - -* Added `Evented` class that now many Leaflet classes inherit from (instead of mixing in events methods in each class), while keeping the old `includes: L.Mixin.Events` syntax available. [#2310](https://github.com/Leaflet/Leaflet/pull/2310) -* Improved `Class` `options` to be prototypically inherited instead of copied over in children classes, which leads to more efficient memory use, faster object construction times and ability to change parent options that get propagated to all children automatically (by [@jfirebaugh](https://github.com/jfirebaugh)). [#2300](https://github.com/Leaflet/Leaflet/pull/2300) [#2294](https://github.com/Leaflet/Leaflet/issues/2294) -* Added `{r}` variable to `TileLayer` `url` for adding `"@2x"` prefix on Retina-enabled devices (by [@urbaniak](https://github.com/urbaniak)). [#2296](https://github.com/Leaflet/Leaflet/pull/2296) -* Added `Point` `ceil` method (by [@perliedman](https://github.com/perliedman)). -* Added `Util.wrapNum` method for wrapping a number to lie in a certain range. -* Improved `L.bind` to use native `Function` `bind` on modern browsers and prepend real arguments to bound ones. -* Added `LatLng` `equals` second argument `maxMargin`. -* Added `DomUtil` `setClass` and `getClass` methods. -* Improved `Marker` `move` event to include `oldLatlng` (by [@danzel](https://github.com/danzel)). [#2412](https://github.com/Leaflet/Leaflet/pull/2412) -* Added `Marker` `mousemove` event (by [@bullgare](https://github.com/bullgare)). [#2798](https://github.com/Leaflet/Leaflet/pull/2798) -* Improved `DomEvent` `on`/`off` to accept space-separated events and object literals (`{type: fn}`). -* Added `DomUtil` `toFront` and `toBack` methods. -* Added `Evented` `listens` as a shortcut to `hasEventListeners`. -* Added optional support for center-oriented scroll for `L.map` option `touchZoom` (by [@mtmail](https://github.com/mtmail)). [#2527](https://github.com/Leaflet/Leaflet/pull/2527) -* Added `getElement` method to all layers that returns an associated DOM element. -* Added `LatLng` `clone` method (by [@yohanboniface](https://github.com/yohanboniface)). [#3390](https://github.com/Leaflet/Leaflet/pull/3390) -* Added `Map` `setMinZoom` and `setMaxZoom` methods (by [@nathancahill](https://github.com/nathancahill)). [#3383](https://github.com/Leaflet/Leaflet/pull/3383) [#3380](https://github.com/Leaflet/Leaflet/issues/3380) -* Added `originalEvent` to `Map` and `Marker` `drag` and `move` event data (by [@yohanboniface](https://github.com/yohanboniface)). [#3264](https://github.com/Leaflet/Leaflet/pull/3264) -* Added `Popup` `autoClose` option (by [@jfirebaugh](https://github.com/jfirebaugh)). [#3018](https://github.com/Leaflet/Leaflet/pull/3018) [#2716](https://github.com/Leaflet/Leaflet/issues/2716) [#1853](https://github.com/Leaflet/Leaflet/issues/1853) -* Added `Control.Zoom` `enable` and `disable` methods. [#3172](https://github.com/Leaflet/Leaflet/issues/3172) -* Added an argument to `L.PolyUtil.clipPolygon` that controls rounding (by [@aparshin](https://github.com/aparshin)). [#2926](https://github.com/Leaflet/Leaflet/pull/2926) [#2917](https://github.com/Leaflet/Leaflet/issues/2917) -* Added `Map` `wheelDebounceTime` option (by [@AndriiHeonia](https://github.com/AndriiHeonia)). [#2836](https://github.com/Leaflet/Leaflet/pull/2836) [#2501](https://github.com/Leaflet/Leaflet/issues/2501) -* Added `TileLayer.WMS` `uppercase` option (now `false` by default) (by [@kdeloach](https://github.com/kdeloach)). [#2831](https://github.com/Leaflet/Leaflet/pull/2831) [#1751](https://github.com/Leaflet/Leaflet/issues/1751) -* Added `ImageOverlay` `alt` option (by [@francis-liberty](https://github.com/francis-liberty)). [#2767](https://github.com/Leaflet/Leaflet/pull/2767) [#2564](https://github.com/Leaflet/Leaflet/issues/2564) -* Improved `L.Util.extend` performance (by [@fab1an](https://github.com/fab1an)). [#2746](https://github.com/Leaflet/Leaflet/pull/2746) -* Added `Map` `stop` method for stopping panning or `flyTo` animation. -* Added `Map` `maxBoundsViscosity` option that controls how much the map resits dragging out of max bounds (set to `1` for a hard limit) (by [@IvanSanchez](https://github.com/IvanSanchez)). [#2224](https://github.com/Leaflet/Leaflet/pull/2224) [#3510](https://github.com/Leaflet/Leaflet/pull/3510) [#1673](https://github.com/Leaflet/Leaflet/issues/1673) -* Added `Bounds` and `LatLngBounds` `overlaps` method (by [@IvanSanchez](https://github.com/IvanSanchez)). [#2981](https://github.com/Leaflet/Leaflet/issues/2981) [#3508](https://github.com/Leaflet/Leaflet/pull/3508) -* Added `ImageOverlay` `crossOrigin` option (by [@patrickarlt](https://github.com/patrickarlt)). [#3594](https://github.com/Leaflet/Leaflet/pull/3594) [#2621](https://github.com/Leaflet/Leaflet/pull/2621) - -### Bugfixes - -* Fixed `DomUtil` `on` to make it possible to add the same listener to the same element for multiple contexts. -* Fixed a bug that thowed an error when attempting to reinitialize the map on unload (by [@gamb](https://github.com/gamb)). [#2410](https://github.com/Leaflet/Leaflet/pull/2410) -* Fixed excessively blurry non-retina tiles on retina iOS devices. -* Fixed a bug with popup close button in IE7/8. [#2351](https://github.com/Leaflet/Leaflet/issues/2351) -* Fixed `ImageOverlay` mercator distortion on lower zoom levels. -* Fixed a bug where layers didn't fire `popupopen` and `popupclose` events when manually creating a popup object and passing it to `bindPopup`. [#2354](https://github.com/Leaflet/Leaflet/issues/2354) -* Fixed box-zoom overlay appearing under markers. [#1813](https://github.com/Leaflet/Leaflet/issues/1813) -* Fixed `Map` `panInsideBounds` to accept array-form bounds (by [@RLRR](https://github.com/RLRR)). [#3489](https://github.com/Leaflet/Leaflet/pull/3489) -* Fixed marker draggable state to persist when removing and adding back to the map (by [@IvanSanchez](https://github.com/IvanSanchez)). [#3488](https://github.com/Leaflet/Leaflet/pull/3488) -* Fixed inertia not working when parallel to axis (by [@rikvanmechelen](https://github.com/rikvanmechelen)). [#3432](https://github.com/Leaflet/Leaflet/issues/3432) -* Fixed images and SVG inside popups having max-width property overriden (by [@yohanboniface](https://github.com/yohanboniface)). [#3452](https://github.com/Leaflet/Leaflet/pull/3452) -* Fixed cursors when dragging is disabled (by [@juliensoret](https://github.com/juliensoret)). [#3219](https://github.com/Leaflet/Leaflet/issues/3219) [#3233](https://github.com/Leaflet/Leaflet/pull/3233) -* Fixed `LatLng` `wrap` to not drop altitude (by [@IvanSanchez](https://github.com/IvanSanchez)). [#3420](https://github.com/Leaflet/Leaflet/issues/3420) -* Fixed Firefox for Android not being detected as mobile (by [@IvanSanchez](https://github.com/IvanSanchez)). [#3419](https://github.com/Leaflet/Leaflet/pull/3419) -* Fixed an infinite loop when calling `setMaxBounds` several times in a row (by [@IvanSanchez](https://github.com/IvanSanchez)). [#3410](https://github.com/Leaflet/Leaflet/pull/3410) [#3320](https://github.com/Leaflet/Leaflet/issues/3320) -* Fixed a WTF `Map` `locate` bug that could cause some unexpected effects (by [@sindre](https://github.com/sindre)). [Leaflet/Leaflet#3404](https://github.com/Leaflet/Leaflet/issues/3404) -* Fixed broken zoom in Project Spartan browsers (by [@mitchless](https://github.com/mitchless)). [#3379](https://github.com/Leaflet/Leaflet/pull/3379) -* Fixed broken `Polygon` `getCenter` when all points in the same pixel (by [@yohanboniface](https://github.com/yohanboniface)). [#3372](https://github.com/Leaflet/Leaflet/pull/3372) -* Fixed broken `Polyline` `getCenter` when the line is very small (by [@yohanboniface](https://github.com/yohanboniface)). [#3371](https://github.com/Leaflet/Leaflet/pull/3371) -* Fixed keyboard zoom out not working on `azerty` keyboards. [#3362](https://github.com/Leaflet/Leaflet/issues/3362) -* Fixed a bug where tabbing to an offscreen marker broke control positioning (by [@IvanSanchez](https://github.com/IvanSanchez)). [#3340](https://github.com/Leaflet/Leaflet/pull/3340) [#3333](https://github.com/Leaflet/Leaflet/issues/3333) -* Fixed `Map` `panBy` not always returning `this` (by [@Trufi](https://github.com/Trufi)). [#3303](https://github.com/Leaflet/Leaflet/pull/3303) -* Fixed a bug where pushing a zoom control with a keyboard would switch focus to the map (by [@Jakobud](https://github.com/Jakobud)). [#3275](https://github.com/Leaflet/Leaflet/pull/3275) [#3159](https://github.com/Leaflet/Leaflet/issues/3159) -* Fixed more race conditions leading to map freeze. [#3270](https://github.com/Leaflet/Leaflet/pull/3270) [#3268](https://github.com/Leaflet/Leaflet/issues/3268) [#2693](https://github.com/Leaflet/Leaflet/issues/2693) [#2478](https://github.com/Leaflet/Leaflet/issues/2478) -* Fixed iOS race condition when doing a very small pan. [#2519](https://github.com/Leaflet/Leaflet/issues/2519) -* Fixed `Polygon` `toGeoJSON` exporting a `MultiPolygon` in some cases (by [@yohanboniface](https://github.com/yohanboniface)). [#2977](https://github.com/Leaflet/Leaflet/pull/2977) -* Fixed `TileLayer.WMS` passing all options as WMS params. [#2972](https://github.com/Leaflet/Leaflet/issues/2972) -* Fixed a race condition that made `map.fitBounds(map.getBounds())` zoom out sometimes. [#2957](https://github.com/Leaflet/Leaflet/issues/2957) -* Fixed a bug where a draggable marker stopped being draggable after `setIcon` (by [@jeffsmale90](https://github.com/jeffsmale90)). [#2578](https://github.com/Leaflet/Leaflet/issues/2578) -* Fixed some IE11 touch performance and stability issues (by [@danzel](https://github.com/danzel)). [#3007](https://github.com/Leaflet/Leaflet/pull/3007) [#2820](https://github.com/Leaflet/Leaflet/issues/2820) -* Fixed a race condition with `TileLayer` when `maxNativeZoom = 0`. [#3004](https://github.com/Leaflet/Leaflet/issues/3004) -* Fixed `FeatureGroup` `setStyle` not affecting `ImageOverlay` `opacity` (by [@opie](https://github.com/opie)). [#3008](https://github.com/Leaflet/Leaflet/pull/3008) [#2246](https://github.com/Leaflet/Leaflet/issues/2246) -* Fixed class init hooks not being called for parent classes (by [@jfirebaugh](https://github.com/jfirebaugh)). [#2545](https://github.com/Leaflet/Leaflet/issues/2545) -* Fixed a bug when adding a control that's already added or removing a control that's not present (by [@jfirebaugh](https://github.com/jfirebaugh)). [#3020](https://github.com/Leaflet/Leaflet/issues/3020) [#2877](https://github.com/Leaflet/Leaflet/issues/2877) -* Fixed buggy inertia on low zoom levels when `Map` `worldCopyJump` option is enabled (by [@flemenach](https://github.com/flemenach)). [#3038](https://github.com/Leaflet/Leaflet/pull/3038) [#2624](https://github.com/Leaflet/Leaflet/issues/2624) -* Fixed a bug where `getMaxZoom` sometimes returned wrong result inside a `Control.Layers` `baselayerchange` event (by [@CloudNiner](https://github.com/CloudNiner)). [#3048](https://github.com/Leaflet/Leaflet/pull/3048) [#2318](https://github.com/Leaflet/Leaflet/issues/2318) -* Fixed a bug where during zooming one map, dragging was disabled on all other maps on the page (by [@kdeloach](https://github.com/kdeloach)). [#3050](https://github.com/Leaflet/Leaflet/pull/3050) [#2539](https://github.com/Leaflet/Leaflet/issues/2539) -* Fixed a `Map` `getSize` race condition where it could return a wrong result (by [@kshepard](https://github.com/kshepard)). [#3052](https://github.com/Leaflet/Leaflet/pull/3052) [#3031](https://github.com/Leaflet/Leaflet/issues/3031) -* Fixed `L.latLng` factory to accept `altitude` as a third argument too (by [@lonelyelk](https://github.com/lonelyelk)). [#3070](https://github.com/Leaflet/Leaflet/pull/3070). -* Fixed `L.latLng` factory to not throw error on empty array input (by [@lonelyelk](https://github.com/lonelyelk)). [#3080](https://github.com/Leaflet/Leaflet/pull/3080) [#3079](https://github.com/Leaflet/Leaflet/issues/3079) -* Fixed popups to have a default color (by [@snkashis](https://github.com/snkashis)). [#3115](https://github.com/Leaflet/Leaflet/pull/3115) [#3112](https://github.com/Leaflet/Leaflet/issues/3112) [#333](https://github.com/Leaflet/Leaflet/issues/333) -* Fixed `Map` `locate` not to mutate the given options object (by [@tmcw](https://github.com/tmcw)). [#3173](https://github.com/Leaflet/Leaflet/pull/3173) -* Fixed Canvas polylines not to render if stroke is set to 0 (by [@optical](https://github.com/optical)). [#3203](https://github.com/Leaflet/Leaflet/pull/3203) -* Prevented a Joomla bug that could lead to vector layers disappearing (by [@SniperSister](https://github.com/SniperSister)). [#2886](https://github.com/Leaflet/Leaflet/pull/2886) [#2881](https://github.com/Leaflet/Leaflet/issues/2881) [Leaflet/Leaflet#2881](https://github.com/Leaflet/Leaflet/issues/2881) -* Fixed IE Metro touch events passing through objects on top of a Leaflet map (by [@nikgavalas](https://github.com/nikgavalas)). [#2954](https://github.com/Leaflet/Leaflet/pull/2954) -* Fixed a bug where vector layers wouldn't display on websites with SVG max-width set to 100% (by [@SniperSister](https://github.com/SniperSister)). [#2886](https://github.com/Leaflet/Leaflet/pull/2886) [#2881](https://github.com/Leaflet/Leaflet/issues/2881) -* Fixed `Marker` `setIcon` to not reset popup anchor offset (by [@bullgare](https://github.com/bullgare)). [#2872](https://github.com/Leaflet/Leaflet/pull/2872) -* Fixed a case where you provide `zoom` in `Map` options and then set center (by [@AndriiHeonia](https://github.com/AndriiHeonia)). [#2849](https://github.com/Leaflet/Leaflet/pull/2849) [#1871](https://github.com/Leaflet/Leaflet/issues/1871) -* Fixed a race condition with `TileLayer` `setUrl` where `loading` event didn't fire properly (by [@bennlich](https://github.com/bennlich)). [#2802](https://github.com/Leaflet/Leaflet/pull/2802) [#2675](https://github.com/Leaflet/Leaflet/issues/2675) [#2827](https://github.com/Leaflet/Leaflet/pull/2827) -* Fixed a bug where a tile layer was not cleaned up properly after zooming past its max zoom (by [@francis-liberty](https://github.com/francis-liberty)). [#2764](https://github.com/Leaflet/Leaflet/pull/2764) [#1905](https://github.com/Leaflet/Leaflet/issues/1905) -* Fixed a memory leak with `Marker` `setIcon` (by [@jfgodoy](https://github.com/jfgodoy)). [#2811](https://github.com/Leaflet/Leaflet/pull/2811) -* Fixed `LatLng` `distanceTo` to not return `NaN` on equal locations. [#2705](https://github.com/Leaflet/Leaflet/issues/2705) -* Fixed a bug where `TileLayer` `maxNativeZoom` didn't work properly with `bounds` option set (by [@mlegenhausen](https://github.com/mlegenhausen)). [#2725](https://github.com/Leaflet/Leaflet/pull/2725) [#2704](https://github.com/Leaflet/Leaflet/issues/2704) -* Fixed a bug where tiles touching the edge of the bounds from outside where loaded (by [@IvanSanchez](https://github.com/IvanSanchez)). [#2981](https://github.com/Leaflet/Leaflet/issues/2981) [#3508](https://github.com/Leaflet/Leaflet/pull/3508) -* Fixed a memory leak in `map.remove()` (by [@IvanSanchez](https://github.com/IvanSanchez)). [#3514](https://github.com/Leaflet/Leaflet/pull/3514) [#2718](https://github.com/Leaflet/Leaflet/issues/2718) -* Fixed a bug where layers control collapsed when hovering over a disabled radio button (by [@rowanwins](https://github.com/rowanwins)). [#3564](https://github.com/Leaflet/Leaflet/pull/3564) [#2771](https://github.com/Leaflet/Leaflet/issues/2771) [Leaflet#2771](https://github.com/Leaflet/Leaflet/issues/2771) -* Fixed GeoJSON not accepting null geometry (by [@pglotov](https://github.com/pglotov)). [#3585](https://github.com/Leaflet/Leaflet/pull/3585) -* Fixed occasional popup 1px horizontal offset (by [@patrickarlt](https://github.com/patrickarlt)). [#3587](https://github.com/Leaflet/Leaflet/pull/3587) [#3526](https://github.com/Leaflet/Leaflet/pull/3526) [#3586](https://github.com/Leaflet/Leaflet/issues/3586) [#3525](https://github.com/Leaflet/Leaflet/issues/3525) -* Fixed some inconsistencies in mouse events for Canvas vector layers (by [@wpf500](https://github.com/wpf500)). [#3590](https://github.com/Leaflet/Leaflet/pull/3590) [#3568](https://github.com/Leaflet/Leaflet/issues/3568) [#3618](https://github.com/Leaflet/Leaflet/pull/3618) -* Fixed scale control for non-earth CRS (by [@cmulders](https://github.com/cmulders)). [#3614](https://github.com/Leaflet/Leaflet/pull/3614) - -### Misc improvements - -* Improved the build system (`jake build`) to report gzipped library size. -* Added version name and commit number to Leaflet builds. [#2276](https://github.com/Leaflet/Leaflet/issues/2276) -* Added Leaflet logo in vector format as `src/images/logo.svg`. -* Added reference to Leaflet CSS in `package.json` (by [@bclinkinbeard](https://github.com/bclinkinbeard)). [#2432](https://github.com/Leaflet/Leaflet/pull/2432) -* Switched from JSHint to ESLint for checking code style and made the checks more strict. [#3176](https://github.com/Leaflet/Leaflet/pull/3176) -* Added a plugin guide section on module loaders and publishing plugins (by [@patrickarlt](https://github.com/patrickarlt)). [#2955](https://github.com/Leaflet/Leaflet/pull/2955) [Leaflet/Leaflet#2955](https://github.com/Leaflet/Leaflet/pull/2955) -* Fixed the build system to work in non-git Leaflet folder (by [@cschwarz](https://github.com/cschwarz)). [#2758](https://github.com/Leaflet/Leaflet/pull/2758) - - -## 0.7.7 (October 26, 2015) - -* Fixed a regression that could sometimes cause tiles to disappear when pinch-zooming on iOS devices. -* Fixed a regression related to msPointer detection in IE10 (affecting Leaflet.draw and some other plugins) (by @danzel) #3842 #3839 #3804 -* Fixed a bug where a mouseout could fire after a vector element was removed (by @sambernet). #3849 #3829 -* Fixed touch interactions in Edge browser (by @mitchless & @Neorth). #3853 #3379 -* Fixed a bug where removing a layer group from a feature group would throw an error (by @Lambdac0re). #3869 - -Note tha we skipped 0.7.6 version for which we accidentally published a broken build to NPM. - - -## 0.7.5 (September 2, 2015) - -* Fixed a regression that broke animation in Leaflet.markercluster. [#3796](https://github.com/Leaflet/Leaflet/issues/3796) - - -## 0.7.4 (September 1, 2015) - -* Fixed a bug introduced by a recent Chrome update that caused the map not to react to interactions until all tiles are loaded. [#3689](https://github.com/Leaflet/Leaflet/issues/3689) -* Fixed a bug where tile layers were not respecting their `minZoom` or `maxZoom` options (by [@ivansanchez](https://github.com/ivansanchez)) [#3778](https://github.com/Leaflet/Leaflet/pull/3778) -* Improved detection of touch-capable web browsers, in particular fixing touch interactions in device emulation mode in Chrome and Firefox (by [@ivansanchez](https://github.com/ivansanchez)) [#3520](https://github.com/Leaflet/Leaflet/pull/3520) [#3710](https://github.com/Leaflet/Leaflet/pull/3710) -* Fixed a bug where tile layers with `maxNativeZoom` were not checking bounds properly (by [@jlaxon](https://github.com/jlaxon)) [#3415](https://github.com/Leaflet/Leaflet/pull/3152) -* Fixed a bug where popups were not remembering which layer originated them after calling `bindPopup(popup)` (by [@Eschon](https://github.com/Eschon)) [#3675](https://github.com/Leaflet/Leaflet/pull/3675) -* Fixed a race condition between markers and zoom animation (by [@perliedman](https://github.com/perliedman)) [#3152](https://github.com/Leaflet/Leaflet/pull/3152) -* Fixed a bug with `Map.fitBounds` padding (by [@bsstoner](https://github.com/bsstoner)). [#2489](https://github.com/Leaflet/Leaflet/issues/2489) -* Allow canvas paths to fire `dblclick` and `contextmenu` events (by [@ivansanchez](https://github.com/ivansanchez)) [#3482](https://github.com/Leaflet/Leaflet/pull/3482) -* Allow canvas filled polygons to use the `fillRule` option (by [@w8r](https://github.com/w8r)) [#3477](https://github.com/Leaflet/Leaflet/pull/3477) -* Allow canvas lines to use `lineCap` and `lineJoin` options (by [@northerneyes](https://github.com/northerneyes)) [#3156](https://github.com/Leaflet/Leaflet/pull/3156) -* Updated bower definitions to comply with best practices (by [@guptaso2](https://github.com/guptaso2)) [#2726](https://github.com/Leaflet/Leaflet/pull/2726) [#3448](https://github.com/Leaflet/Leaflet/pull/3448) - - -## 0.7.3 (May 23, 2014) - -* Added proper **bower** and **component** support (by [@calvinmetcalf](https://github.com/calvinmetcalf)). [#2561](https://github.com/Leaflet/Leaflet/pull/2561) [#1903](https://github.com/Leaflet/Leaflet/issues/1903) -* Fixed a bug where dragging the map outside the window caused an error on FF. [#2610](https://github.com/Leaflet/Leaflet/issues/2610) -* Fixed a bug where some taps on Android where not working, often falsely perceived as drags (by [@axefrog](https://github.com/axefrog)). [#2503](https://github.com/Leaflet/Leaflet/pull/2503) -* Fixed a bug where clicks on Android were skipped when happened too fast. [#2303](https://github.com/Leaflet/Leaflet/issues/2303) -* Fixed a bug where calling `setView` (or similar methods) several times in succession could freeze the map. [#2521](https://github.com/Leaflet/Leaflet/issues/2521) [#2236](https://github.com/Leaflet/Leaflet/issues/2236) [#2485](https://github.com/Leaflet/Leaflet/issues/2485) -* Fixed a bug where `Control.Layers` wasn't properly removed (by [@jack-kerouac](https://github.com/jack-kerouac)). [#2569](https://github.com/Leaflet/Leaflet/pull/2569) -* Fixed a bug that caused `TileLayer` `load` event not to fire properly. [#2510](https://github.com/Leaflet/Leaflet/issues/2510) -* Fixed Canvas-based paths not triggering `remove` event when removed (by @adimitrov). [#2486](https://github.com/Leaflet/Leaflet/pull/2486) -* Fixed a bug where you could end up with fractional zoom after pinch-zooming in some cases (by [@danzel](https://github.com/danzel). [#2400](https://github.com/Leaflet/Leaflet/pull/2400) [#1943](https://github.com/Leaflet/Leaflet/issues/1934) - - -## 0.7.2 (January 17, 2014) - -* Fixed a bug that appeared with **Chrome 32 update** that made all **mouse events shifted on scrolled pages**. [#2352](https://github.com/Leaflet/Leaflet/issues/2352) -* Fixed a bug that could break tile loading when using non-standard tile sizes. [#2288](https://github.com/Leaflet/Leaflet/issues/2288) -* Fixed a bug where `maxNativeZoom` option didn't work with TMS tile layers (by [@perliedman](https://github.com/perliedman)). [#2321](https://github.com/Leaflet/Leaflet/issues/2321) [#2314](https://github.com/Leaflet/Leaflet/issues/2314) - - -## 0.7.1 (December 6, 2013) - -* Fixed a bug where pinch-zooming quickly could occasionally leave the map at a fractional zoom thus breaking tile loading (by [@danzel](https://github.com/danzel)). [#2269](https://github.com/Leaflet/Leaflet/pull/2269) [#2255](https://github.com/Leaflet/Leaflet/issues/2255) [#1934](https://github.com/Leaflet/Leaflet/issues/1934) -* Fixed tile flickering issues on some old Android 2/3 devices by disabling buggy hardware accelerated CSS there (by [@danzel](https://github.com/danzel)). [#2216](https://github.com/Leaflet/Leaflet/pull/2216) [#2198](https://github.com/Leaflet/Leaflet/issues/2198) -* Fixed a regression that sometimes led to an error when you started pinch-zoom as the first action on the map (by [@danzel](https://github.com/danzel)). [#2259](https://github.com/Leaflet/Leaflet/pull/2259) [#2256](https://github.com/Leaflet/Leaflet/issues/2256) -* Reverted `L.Util.template` optimizations to allow Leaflet to be used in eval-banning environments like browser extensions (performance gain was insignificant anyway) (by [@calvinmetcalf](https://github.com/calvinmetcalf)). [#2217](https://github.com/Leaflet/Leaflet/issues/2217) [#2209](https://github.com/Leaflet/Leaflet/issues/2209) [#1968](https://github.com/Leaflet/Leaflet/issues/1968) -* Fixed a regression where `Map` `invalidateSize` could lead to unexpected results when called before map initialization (by [@Zverik](https://github.com/Zverik)). [#2250](https://github.com/Leaflet/Leaflet/issues/2250) [#2249](https://github.com/Leaflet/Leaflet/issues/2249) -* Fixed a regression where `FeatureGroup` containing other group overwrote original `e.layer` value in mouse events (by [@gumballhead](https://github.com/gumballhead)). [#2253](https://github.com/Leaflet/Leaflet/pull/2253) [#2252](https://github.com/Leaflet/Leaflet/issues/2252) -* Fixed a regression where `CircleMarker` `setLatLngs` didn't return `this` (by [@radicalbiscuit](https://github.com/radicalbiscuit)). [#2206](https://github.com/Leaflet/Leaflet/pull/2206) - -## 0.7 (November 18, 2013) - -### Improvements - -#### Usability improvements - -* Added **support for IE11 touch devices** (by [@danzel](https://github.com/danzel), [@DanielX2](https://github.com/DanielX2) and [@fnicollet](https://github.com/fnicollet)). [#2039](https://github.com/Leaflet/Leaflet/pull/2039) [#2066](https://github.com/Leaflet/Leaflet/pull/2066) [#2037](https://github.com/Leaflet/Leaflet/issues/2037) [#2102](https://github.com/Leaflet/Leaflet/issues/2102) -* Added shift-double-click to zoom out shortcut. [#2185](https://github.com/Leaflet/Leaflet/issues/2185) -* Significantly improved **controls design on mobile** devices. [#1868](https://github.com/Leaflet/Leaflet/issues/1868) [#2012](https://github.com/Leaflet/Leaflet/issues/2012) -* Fixed and improved IE7-8 control and popup styles. -* Made subtle improvements to control styles on desktop browsers. -* Improved keyboard nav support so that map doesn't loose focus when you click on a control (by [@jacobtoye](https://github.com/jacobtoye)). [#2150](https://github.com/Leaflet/Leaflet/issues/2150) [#2148](https://github.com/Leaflet/Leaflet/issues/2148) -* Improved `maxBounds` behavior: now it doesn't force higher minimal zoom, and anchors to max bounds edges properly when zooming (by [@kapouer](https://github.com/kapouer) and [@mourner](https://github.com/mourner)). [#2187](https://github.com/Leaflet/Leaflet/pull/2187) [#1946](https://github.com/Leaflet/Leaflet/pull/1946) [#2081](https://github.com/Leaflet/Leaflet/issues/2081) [#2168](https://github.com/Leaflet/Leaflet/issues/2168) [#1908](https://github.com/Leaflet/Leaflet/issues/1908) - -#### Map API improvements - -* Made `Map` `setView` `zoom` argument optional. [#2056](https://github.com/Leaflet/Leaflet/issues/2056) -* Added `maxZoom` option to `Map` `fitBounds`. [#2101](https://github.com/Leaflet/Leaflet/issues/2101) -* Added `Map` `bounceAtZoomLimits` option that makes the map bounce when you pinch-zoom past limits (it worked like this before, but now you can disable this) (by [@trevorpowell](https://github.com/trevorpowell)). [#1864](https://github.com/Leaflet/Leaflet/issues/1864) [#2072](https://github.com/Leaflet/Leaflet/pull/2072) -* Added `distance` property to `Map` and `Marker` `dragend` events. [#2158](https://github.com/Leaflet/Leaflet/issues/2158) [#872](https://github.com/Leaflet/Leaflet/issues/872) -* Added optional support for center-oriented scroll and double-click zoom (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1939](https://github.com/Leaflet/Leaflet/issues/1939) -* Added `timestamp` to `Map` `locationfound` event. [#584](https://github.com/Leaflet/Leaflet/pull/584) -* Improved `Map` `invalidateSize` to call `moveend` immediately unless given `debounceMoveend: true` option (by [@jfirebaugh](https://github.com/jfirebaugh)). [#2181](https://github.com/Leaflet/Leaflet/issues/2181) - -#### TileLayer API improvements - -* Added `TileLayer` `maxNativeZoom` option that allows displaying tile layers on zoom levels above their maximum by **upscaling tiles**. [#1802](https://github.com/Leaflet/Leaflet/issues/1802) [#1798](https://github.com/Leaflet/Leaflet/issues/1798) -* Added `TileLayer` `tileloadstart` event (by [@tmcw](https://github.com/tmcw)). [#2142](https://github.com/Leaflet/Leaflet/pull/2142) [#2140](https://github.com/Leaflet/Leaflet/issues/2140) -* Improved `TileLayer` world size (used for wrapping and limiting tiles) to be derived from CRS instead of hardcoded, making it easier to use with custom projections (by [@perliedman](https://github.com/perliedman)). [#2160](https://github.com/Leaflet/Leaflet/pull/2160) - -#### Marker API improvements - -* Added CSS classes to draggable markers for easier customization (by [@snkashis](https://github.com/snkashis)). [#1902](https://github.com/Leaflet/Leaflet/issues/1902) [#1916](https://github.com/Leaflet/Leaflet/issues/1916) -* Added `Marker` `add` event (by [@tohaocean](https://github.com/tohaocean)). [#1942](https://github.com/Leaflet/Leaflet/issues/1942) -* Added `Marker` `getPopup` method (by [@scottharvey](https://github.com/scottharvey)). [#618](https://github.com/Leaflet/Leaflet/issues/618) [#1197](https://github.com/Leaflet/Leaflet/pull/1197) -* Added `Marker` `alt` option for adding `alt` text to markers (by [@jimmytidey](https://github.com/jimmytidey)). [#2112](https://github.com/Leaflet/Leaflet/pull/2112) - -#### Vector layers API improvements - -* Added `Path` `className` option for adding custom class names to vector layers. -* Added `Path` `lineCap` and `lineJoin` options (by [@palewire](https://github.com/palewire)). [#1843](https://github.com/Leaflet/Leaflet/issues/1843) [#1863](https://github.com/Leaflet/Leaflet/issues/1863) [#1881](https://github.com/Leaflet/Leaflet/issues/1881) -* Added ability to pass vector options to `GeoJSON` (by [@kapouer](https://github.com/kapouer)). [#2075](https://github.com/Leaflet/Leaflet/pull/2075) -* Improved `Polygon` `setLatLngs` to also accept holes (by [@aparshin](https://github.com/aparshin)). [#2095](https://github.com/Leaflet/Leaflet/pull/2095) [#1518](https://github.com/Leaflet/Leaflet/issues/1518) -* Added `GeoJSON` 3D format support and optional `altitude` argument to `LatLng` constructor (by [@Starefossen](https://github.com/Starefossen)). [#1822](https://github.com/Leaflet/Leaflet/pull/1822) -* Added `MultiPolygon` and `MultiPolyline` `openPopup` method. [#2046](https://github.com/Leaflet/Leaflet/issues/2046) - -#### Popup API improvements - -* Added `Popup` `update` method. [#1959](https://github.com/Leaflet/Leaflet/issues/1959) -* Added `Popup` `autoPanPaddingTopLeft` and `autoPanPaddingBottomRight` options (by [@albburtsev](https://github.com/albburtsev)). [#1972](https://github.com/Leaflet/Leaflet/issues/1972) [#1588](https://github.com/Leaflet/Leaflet/issues/1588) -* Added `Popup` `getContent` method. [#2100](https://github.com/Leaflet/Leaflet/issues/2100) -* Added `Popup` `getLatLng` method (by [@AndreyGeonya](https://github.com/AndreyGeonya)). [#2097](https://github.com/Leaflet/Leaflet/pull/2097) - -#### Misc API improvements - -* Added `ImageOverlay` `setUrl` and `getAttribution` methods and `attribution` option (by [@stsydow](https://github.com/stsydow)). [#1957](https://github.com/Leaflet/Leaflet/issues/1957) [#1958](https://github.com/Leaflet/Leaflet/issues/1958) -* Added localization support for the zoom control (by [@Danielku15](https://github.com/Danielku15)). [#1953](https://github.com/Leaflet/Leaflet/issues/1953) [#1643](https://github.com/Leaflet/Leaflet/issues/1643) [#1953](https://github.com/Leaflet/Leaflet/pull/1953) -* Significantly improved `L.Util.template` performance (affects `L.TileLayer`) by introducing cached template compilation (by [@calvinmetcalf](https://github.com/calvinmetcalf)). [#1969](https://github.com/Leaflet/Leaflet/issues/1969) [#1968](https://github.com/Leaflet/Leaflet/issues/1968) [#1554](https://github.com/Leaflet/Leaflet/issues/1554) -* Added `CRS` `getSize` for getting the world size in pixels (by [@perliedman](https://github.com/perliedman)). [#2160](https://github.com/Leaflet/Leaflet/pull/2160) -* Added `leaflet-drag-target` CSS class to an element under cursor when dragging for more flexible customization. [#2164](https://github.com/Leaflet/Leaflet/issues/2164) [#1902](https://github.com/Leaflet/Leaflet/issues/1902) -* Improved `L.DomUtil` `addClass`, `removeClass`, `hasClass` methods performance and fixed it to work with SVG elements. [#2164](https://github.com/Leaflet/Leaflet/issues/2164) - -#### Dev workflow improvements - -* Added an [official FAQ](https://github.com/Leaflet/Leaflet/blob/master/FAQ.md). -* Cleaned up and moved old IE styles to `leaflet.css` and removed `leaflet.ie.css`, so **no need for IE conditional comment** when including Leaflet now. [#2159](https://github.com/Leaflet/Leaflet/issues/2159) -* Added `leaflet-oldie` CSS class to map container in IE7-8 for easier styling. [#2159](https://github.com/Leaflet/Leaflet/issues/2159) -* Officially **dropped support for IE6**. Nobody cares anyway, and Leaflet should still be accessible on it. [#2159](https://github.com/Leaflet/Leaflet/issues/2159) -* Improved the build system to check JS errors in spec files. [#2151](https://github.com/Leaflet/Leaflet/issues/2151) -* Fixed `jake` command to run tests before building the source. [#2151](https://github.com/Leaflet/Leaflet/issues/2151) -* Switched the main file in `package.json` to unminified version for NPM/Browserify (by [@icetan](https://github.com/icetan)). [#2109](https://github.com/Leaflet/Leaflet/pull/2109) - -### Bugfixes - -#### 0.6 regression fixes - -* Fixed a **memory leak in iOS7** that could crash Safari when handling lots of objects (e.g. 1000 markers) (by [@danzel](https://github.com/danzel)). [#2149](https://github.com/Leaflet/Leaflet/pull/2149) [#2122](https://github.com/Leaflet/Leaflet/issues/2122) -* Fixed a bug that caused lag at the beginning of panning in Chrome (by [@jfirebaugh](https://github.com/jfirebaugh)). [#2163](https://github.com/Leaflet/Leaflet/issues/2163) -* Fixed a regression that made the layers control unscrollable in Firefox. [#2029](https://github.com/Leaflet/Leaflet/issues/2029) -* Fixed a regression that broke `worldCopyJump: true` option (by [@fastrde](https://github.com/fastrde)). [#1904](https://github.com/Leaflet/Leaflet/issues/1904) [#1831](https://github.com/Leaflet/Leaflet/issues/1831) [#1982](https://github.com/Leaflet/Leaflet/issues/1982) -* Fixed a regression where a first map click after popup close button click was ignored (by [@fastrde](https://github.com/fastrde)). [#1537](https://github.com/Leaflet/Leaflet/issues/1537) [#1963](https://github.com/Leaflet/Leaflet/issues/1963) [#1925](https://github.com/Leaflet/Leaflet/issues/1925) -* Fixed a regression where `L.DomUtil.getMousePosition` would throw an error if container argument not provided (by [@scooterw](https://github.com/scooterw)). [#1826](https://github.com/Leaflet/Leaflet/issues/1826) [#1928](https://github.com/Leaflet/Leaflet/issues/1928) [#1926](https://github.com/Leaflet/Leaflet/issues/1926) -* Fixed a regression with vector layers positioning when zooming on IE10+ touch devices (by [@danzel](https://github.com/danzel)). [#2002](https://github.com/Leaflet/Leaflet/issues/2002) [#2000](https://github.com/Leaflet/Leaflet/issues/2000) -* Fixed a regression with `maxBounds` behaving weirdly on panning inertia out of bounds. [#2168](https://github.com/Leaflet/Leaflet/issues/2168) - -#### General bugfixes - -* Fixed a bug where the map could freeze if centered and immediately recentered on initialization. [#2071](https://github.com/Leaflet/Leaflet/issues/2071) -* Fixed a bug where all maps except the first one on a page didn't track window resize. [#1980](https://github.com/Leaflet/Leaflet/issues/1980) -* Fixed a bug where tiles in `EPSG:3395` projection were shifted (by [@aparshin](https://github.com/aparshin)). [#2020](https://github.com/Leaflet/Leaflet/issues/2020) -* Fixed a bug where scale control displayed wrong scale when on pages with `box-sizing: border-box`. -* Fixed a bug where zoom control button didn't appear as disabled if map was initialized at the zoom limit. [#2083](https://github.com/Leaflet/Leaflet/issues/2083) -* Fixed a bug where box zoom also triggered a map click event (by [@fastrde](https://github.com/fastrde)). [#1951](https://github.com/Leaflet/Leaflet/issues/1951) [#1884](https://github.com/Leaflet/Leaflet/issues/1884) -* Fixed a bug where shift-clicking on a map immediately after a drag didn't trigger a click event (by [@fastrde](https://github.com/fastrde)). [#1952](https://github.com/Leaflet/Leaflet/issues/1952) [#1950](https://github.com/Leaflet/Leaflet/issues/1950) -* Fixed a bug where content was updated twice when opening a popup. [#2137](https://github.com/Leaflet/Leaflet/issues/2137) -* Fixed a bug that could sometimes cause infinite panning loop when using `maxBounds` (by [@kapouer](https://github.com/kapouer) and [@mourner](https://github.com/mourner)). [#2187](https://github.com/Leaflet/Leaflet/pull/2187) [#1946](https://github.com/Leaflet/Leaflet/pull/1946) [#2081](https://github.com/Leaflet/Leaflet/issues/2081) [#2168](https://github.com/Leaflet/Leaflet/issues/2168) [#1908](https://github.com/Leaflet/Leaflet/issues/1908) - -#### Browser bugfixes - -* Fixed a bug where keyboard `+` no longer zoomed the map on FF 22+ (by [@fastrde](https://github.com/fastrde)). [#1943](https://github.com/Leaflet/Leaflet/issues/1943) [#1981](https://github.com/Leaflet/Leaflet/issues/1981) -* Fixed a bug where calling `Map` `remove` throwed an error in IE6-8. [#2015](https://github.com/Leaflet/Leaflet/issues/2015) -* Fixed a bug where `isArray` didn't work in rare cases in IE9. [#2077](https://github.com/Leaflet/Leaflet/issues/2077) -* Fixed a bug where FF sometimes produced console warnings when animating markers. [#2090](https://github.com/Leaflet/Leaflet/issues/2090) -* Fixed a bug where mouse wasn't handled correctly on RTL pages in some cases (by [@danzel](https://github.com/danzel)). [#1986](https://github.com/Leaflet/Leaflet/issues/1986) [#2136](https://github.com/Leaflet/Leaflet/pull/2136) - -#### Mobile bugfixes - -* Fixed a bug where tiles could **disappear after zooming on Chrome 30+ for Android** (by [@danzel](https://github.com/danzel)). [#2152](https://github.com/Leaflet/Leaflet/pull/2152) [#2078](https://github.com/Leaflet/Leaflet/issues/2078) -* Fixed a bug on IE10+ touch where pinch-zoom also caused click (by [@danzel](https://github.com/danzel)). [#2117](https://github.com/Leaflet/Leaflet/pull/2117) [#2094](https://github.com/Leaflet/Leaflet/issues/2094) -* Fixed a bug on IE10+ touch where controls didn't loose the pressed state after tapping (by [@danzel](https://github.com/danzel)). [#2111](https://github.com/Leaflet/Leaflet/pull/2111) [#2103](https://github.com/Leaflet/Leaflet/issues/2103) -* Fixed a bug where clicking on layers control labels on iOS throwed an error (by [@olemarkus](https://github.com/olemarkus) and [@dagjomar](https://github.com/dagjomar)). [#1984](https://github.com/Leaflet/Leaflet/issues/1984) [#1989](https://github.com/Leaflet/Leaflet/issues/1989) - -#### Map API bugfixes - -* Fixed a bug where `Map` `getCenter` returned old result after map container size changed (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1940](https://github.com/Leaflet/Leaflet/issues/1940) [#1919](https://github.com/Leaflet/Leaflet/issues/1919) -* Fixed `Map` `invalidateSize` rounding issues when changing map size by an odd pixel amount (by [@russelldavis](https://github.com/russelldavis)). [#1931](https://github.com/Leaflet/Leaflet/issues/1931) -* Fixed a bug where `Map` `removeLayer` didn't return `this` in a corner case (by [@jfirebaugh](https://github.com/jfirebaugh)). -* Fixed a bug where calling `Map` `setZoom` before `setView` would throw an error. [#1449](https://github.com/Leaflet/Leaflet/issues/1449) - -#### Layers API bugfixes - -* Fixed a bug where `Popup` `setLatLng` unnecessarily reset content and updated layout; works much faster now. [#2167](https://github.com/Leaflet/Leaflet/issues/2167) -* Fixed a bug where `toGeoJSON` of layers originated from GeoJSON GeometryCollection and MultiPoint didn't work properly (wasn't round-tripped). [#1956](https://github.com/Leaflet/Leaflet/issues/1956) -* Fixed `GeoJSON` dependencies in build configuration that could lead to a broken custom build in some situations (by [@alubchuk](https://github.com/alubchuk)). [#1909](https://github.com/Leaflet/Leaflet/issues/1909) -* Fixed a bug where `CircleMarker` popup placement wasn't updated after calling `setLatLng` (by [@snkashis](https://github.com/snkashis)). [#1921](https://github.com/Leaflet/Leaflet/issues/1921) [#1927](https://github.com/Leaflet/Leaflet/issues/1927) -* Fixed a bug where popup anchor wasn't updated on `Marker` `setIcon` (by [@snkashis](https://github.com/snkashis)). [#1874](https://github.com/Leaflet/Leaflet/issues/1874) [#1891](https://github.com/Leaflet/Leaflet/issues/1891) -* Fixed a bug with GeoJSON not throwing a descriptive error if a polygon has zero length inner ring (by [@snkashis](https://github.com/snkashis)). [#1917](https://github.com/Leaflet/Leaflet/issues/1917) [#1918](https://github.com/Leaflet/Leaflet/issues/1918) -* Fixed a bug where `FeatureGroup` would break when using non-evented children layers (by [@tmcw](https://github.com/tmcw)). [#2032](https://github.com/Leaflet/Leaflet/pull/2032) [#1962](https://github.com/Leaflet/Leaflet/issues/1962) -* Fixed a bug where `CircleMarker` `getRadius` would always return `null`. [#2016](https://github.com/Leaflet/Leaflet/issues/2016) [#2017](https://github.com/Leaflet/Leaflet/pull/2017) -* Fixed a bug where `TileLayer.WMS` didn't work with WMS 1.3 & EPSG4326 projection (by [@Bobboya](https://github.com/Bobboya)). [#1897](https://github.com/Leaflet/Leaflet/pull/1897) -* Fixed a bug where `FeatureGroup` events `e.layer` was sometimes empty in old IE. [#1938](https://github.com/Leaflet/Leaflet/issues/1938) - -#### Misc API bugfixes - -* Fixed a bug where `L.latLngBounds` didn't accept simple object `LatLng` form (by [@Gnurfos](https://github.com/Gnurfos)). [#2025](https://github.com/Leaflet/Leaflet/issues/2025) [#1915](https://github.com/Leaflet/Leaflet/issues/1915) -* Fixed a bug where `L.Util.tempalate` wouldn't work with double quotes in the string (by [@jieter](https://github.com/jieter)). [#1968](https://github.com/Leaflet/Leaflet/issues/1968) [#2121](https://github.com/Leaflet/Leaflet/pull/2121) [#2120](https://github.com/Leaflet/Leaflet/issues/2120) -* Fixed a bug where attribution control that was added to a map after attributed layers didn't have the corresponding attributions (by [@snkashis](https://github.com/snkashis)). [#2177](https://github.com/Leaflet/Leaflet/issues/2177) [#2178](https://github.com/Leaflet/Leaflet/pull/2178) - - -## 0.6.4 (July 25, 2013) - -* Fixed a regression where `fitBounds` and `setMaxBounds` could freeze the browser in some situations. [#1895](https://github.com/Leaflet/Leaflet/issues/1895) [1866](https://github.com/Leaflet/Leaflet/issues/1866) -* Fixed a bug where click on a map on a page with horizontal scroll caused the page to scroll right (by [@mstrelan](https://github.com/mstrelan)). [#1901](https://github.com/Leaflet/Leaflet/issues/1901) - -## 0.6.3 (July 17, 2013) - -### Regression fixes - -* Fixed a regression where mouse interaction had incorrect coordinates in some map positioning cases (by [@scooterw](https://github.com/scooterw)). [#1826](https://github.com/Leaflet/Leaflet/issues/1826) [#1684](https://github.com/Leaflet/Leaflet/issues/1684) [#1745](https://github.com/Leaflet/Leaflet/issues/1745) [#1](https://github.com/Leaflet/Leaflet/issues/1) -* Fixed a regression that prevented the map from responding to drag on areas covered with `ImageOverlay` (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1821](https://github.com/Leaflet/Leaflet/issues/1821) -* Fixed a regression where `layerremove` and `layeradd` were fired before the corresponding action finishes (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1846](https://github.com/Leaflet/Leaflet/issues/1846) -* Fixed a regression with `worldCopyJump: true` breaking the map on small zoom levels (by [@danzel](https://github.com/danzel)). [#1831](https://github.com/Leaflet/Leaflet/issues/1831) -* Fixed a regression where `Marker` shadow didn't animate on zoom after using `setIcon`. [#1768](https://github.com/Leaflet/Leaflet/issues/1768) -* Fixed a regression where the map would stuck when trying to animate zoom before any tile layers are added to the map. [#1484](https://github.com/Leaflet/Leaflet/issues/1484) [#1845](https://github.com/Leaflet/Leaflet/issues/1845) -* Fixed a regression with the layers control and popups closing on inside click in IE < 9. [#1850](https://github.com/Leaflet/Leaflet/issues/1850) -* Fixed a regression where scrolled popup content woudln't scroll in FF (by [@jfirebaugh](https://github.com/jfirebaugh)). - -### Bug fixes - -* Fixed vector feature flickering on Safari Mac for screen < 2000px. [#902](https://github.com/Leaflet/Leaflet/issues/902) -* Fixed a bug where `GeoJSON` ignored non-feature geometries passed in an array. [#1840](https://github.com/Leaflet/Leaflet/issues/1840) -* Fixed a bug where `Map` `minZoom` and `maxZoom` didn't always override values derived from the added tile layers. [1848](https://github.com/Leaflet/Leaflet/issues/1848) -* Fixed a bug where `TileLayer.Canvas` wasn't immediately redrawn when `redraw` is called (by [@tofferrosen](https://github.com/tofferrosen)). [#1797](https://github.com/Leaflet/Leaflet/issues/1797) [#1817](https://github.com/Leaflet/Leaflet/issues/1817) -* Fixed a bug where `FeatureGroup` still fired `layerremove` event on `removeLayer` even if the given layer wan't present in the group (by (by [@danzel](https://github.com/danzel))). [#1847](https://github.com/Leaflet/Leaflet/issues/1847) [#1858](https://github.com/Leaflet/Leaflet/issues/1858) -* Fixed a bug where `Marker` `setOpacity` wasn't returning the marker (by [@freepius44](https://github.com/freepius44)). [#1851](https://github.com/Leaflet/Leaflet/issues/1851) -* Fixed a bug where removing the map element from the DOM before panning transition has finished could keep a setInterval loop running forever (by [@rutkovsky](https://github.com/rutkovsky)). [#1825](https://github.com/Leaflet/Leaflet/issues/1825) [#1856](https://github.com/Leaflet/Leaflet/issues/1856) -* Fixed mobile styles to apply to `leaflet-bar` elements. - -### Improvements - -* Added ability to pass zoom/pan animation options to `setMaxBounds` (by [@davidjb](http://git.io/djb)). [#1834](https://github.com/Leaflet/Leaflet/pull/1834) -* Added `MultiPolyline` and `MultiPolygon` `getLatLngs` method. [#1839](https://github.com/Leaflet/Leaflet/issues/1839) - -### Dev Workflow improvements - -* Leaflet builds (*.js files in the `dist` folder) were removed from the repo and are now done automatically on each commit for `master` and `stable` branches by [Travis CI](travis-ci.org/Leaflet/Leaflet). The download links are on the [Leafet download page](http://leafletjs.com/download.html). - -## 0.6.2 (June 28, 2013) - - * Fixed a bug that caused wrong tile layers stacking order when using opacity < 1 (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1804](https://github.com/Leaflet/Leaflet/issues/1804) [#1790](https://github.com/Leaflet/Leaflet/issues/1790) [#1667](https://github.com/Leaflet/Leaflet/issues/1667) - * Fixed a regression that caused tiles selection when double-clicking absolutely positioned maps with vector layers in it in Firefox (WTF!) (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1807](https://github.com/Leaflet/Leaflet/issues/1807) - * Fixed a regression with a wrong cursor when dragging a map with vector layers, and tiles becoming selected on double click (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1800](https://github.com/Leaflet/Leaflet/issues/1800) - * Fixed a regression that caused flickering of tiles near map border on zoom animation in Chrome. - -## 0.6.1 (June 27, 2013) - - * Fixed a regression with mouse wheel zooming too fast on Firefox (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1788](https://github.com/Leaflet/Leaflet/issues/1788) - * Fixed a regression with broken zooming on maps with EPSG3395 projection. [#1796](https://github.com/Leaflet/Leaflet/issues/1796) - * Fixed a bug where zoom buttons inherited Bootstrap link hover styles. [#1791](https://github.com/Leaflet/Leaflet/issues/1791) - -## 0.6 (June 26, 2013) - -### Breaking changes - - * Moved polyline editing code into [Leaflet.draw](https://github.com/Leaflet/Leaflet.draw) plugin (where it fits much better along with all other editing and drawing handlers). The API remains the same. - * Dropped support for environments that augment `Object.prototype` (luckily it's a thing of the past nowadays). - * `Map` `invalidateSize` no longer fires `move` and `moveend` events if the map size didn't change. [#1819](https://github.com/Leaflet/Leaflet/issues/1819) - -### Improvements - -#### Usability and performance improvements - - * **Improved zoom control design** - cleaner, simpler, more accessible (mostly by [@jacobtoye](https://github.com/jacobtoye)). [#1313](https://github.com/Leaflet/Leaflet/issues/1313) - * Updated `Control.Layers` icon (designed by Volker Kinkelin), added retina version and SVG source. [#1739](https://github.com/Leaflet/Leaflet/issues/1739) - * Added keyboard accessibility to markers (you can now tab to them and press enter for click behavior). [#1355](https://github.com/Leaflet/Leaflet/issues/1355) - * Improved `TileLayer` zoom animation to eliminate flickering in case one tile layer on top of another or when zooming several times quickly (by [@mourner](https://github.com/mourner) with lots of fixes from [@danzel](https://github.com/danzel)). [#1140](https://github.com/Leaflet/Leaflet/issues/1140) [#1437](https://github.com/Leaflet/Leaflet/issues/1437) [#52](https://github.com/Leaflet/Leaflet/issues/52) - * Subtly improved default popup styles - * Improved attribution control to be much less obtrusive (no "powered by", just a Leaflet link). You can still remove the prefix with `map.attributionControl.setPrefix('')` if you need. - * Improved zoom behavior so that there's no drift of coordinates when you change zoom back and forth without panning. [#426](https://github.com/Leaflet/Leaflet/issues/426) - * Improved double click behavior to zoom while keeping the clicked point fixed (by [@ansis](https://github.com/ansis)). [#1582](https://github.com/Leaflet/Leaflet/issues/1582) - * Improved dragging behavior to not get stuck if mouse moved outside of an iframe containing the map (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1277](https://github.com/Leaflet/Leaflet/issues/1277) [#1782](https://github.com/Leaflet/Leaflet/issues/1782) [#1786](https://github.com/Leaflet/Leaflet/issues/1786) - * Improved box zoom to be cancelable by pressing Escape (by [@yohanboniface](https://github.com/yohanboniface)). [#1438](https://github.com/Leaflet/Leaflet/issues/1438) - * Improved `Marker` popups to close on marker click if opened (by [@popox](https://github.com/popox)). [#1761](https://github.com/Leaflet/Leaflet/issues/1761) - * Significantly improved mass layer removal performance (by [@jfgirard](https://github.com/jfgirard) with fixes from [@danzel](https://github.com/danzel)). [#1141](https://github.com/Leaflet/Leaflet/pull/1141) [#1514](https://github.com/Leaflet/Leaflet/pull/1514) - -#### API improvements - -##### Layers API improvements - - * Added `toGeoJSON` method to various layer types, allowing you to **save your Leaflet layers as GeoJSON**. (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1462](https://github.com/Leaflet/Leaflet/issues/1462) [#712](https://github.com/Leaflet/Leaflet/issues/712) [#1779](https://github.com/Leaflet/Leaflet/issues/1779) - * Added `GeoJSON` `coordsToLatLng` option for dealing with GeoJSON that has non-WGS84 coords (thanks to [@moonlite](https://github.com/moonlite)). [#888](https://github.com/Leaflet/Leaflet/issues/888) [#886](https://github.com/Leaflet/Leaflet/issues/886) - * Improved `Marker` to reuse icon DOM elements when changing icons on the fly (e.g. fixes problems when changing icon on mouse hover) (by [@robpvn](https://github.com/robpvn) & [@danzel](https://github.com/danzel)). [#1726](https://github.com/Leaflet/Leaflet/issues/1726) [#561](https://github.com/Leaflet/Leaflet/issues/561) [#1753](https://github.com/Leaflet/Leaflet/issues/1753) [#1754](https://github.com/Leaflet/Leaflet/pull/1754) - * Added `latlng` property to `Marker` mouse event data. [#1613](https://github.com/Leaflet/Leaflet/issues/1613) - * Added `LayerGroup` `hasLayer` method (by [@rvlasveld](https://github.com/rvlasveld)). [#1282](https://github.com/Leaflet/Leaflet/issues/1282) [#1300](https://github.com/Leaflet/Leaflet/pull/1300) - * Added `LayerGroup` `getLayers` method (by [@tmcw](https://github.com/tmcw)). [#1469](https://github.com/Leaflet/Leaflet/pull/1469) - * Added `LayerGroup` `getLayer` method (by [@gumballhead](https://github.com/gumballhead)). [#1650](https://github.com/Leaflet/Leaflet/pull/1650) - * Improved `LayerGroup` `removeLayer` method to also accept layer `id` (by [@gumballhead](https://github.com/gumballhead)). [#1642](https://github.com/Leaflet/Leaflet/pull/1642) - * Added `Path` `pointerEvents` option for setting pointer-events on SVG-powered vector layers (by [@inpursuit](https://github.com/inpursuit)). [#1053](https://github.com/Leaflet/Leaflet/pull/1053) - * Improved `Polygon` to filter out last point if it's equal to the first one (to fix GeoJSON polygon issues) (by [@snkashis](https://github.com/snkashis)). [#1153](https://github.com/Leaflet/Leaflet/pull/1153) [#1135](https://github.com/Leaflet/Leaflet/issues/1135) - * Improved paths with `clickable: false` to allow mouse events to pass through to objects underneath (by [@snkashis](https://github.com/snkashis)). [#1384](https://github.com/Leaflet/Leaflet/pull/1384) [#1281](https://github.com/Leaflet/Leaflet/issues/1281) - * Improved `L.Util.template` (and correspondingly url-related `TileLayer` options) to support functions for data values (by [@olegsmith](https://github.com/olegsmith)). [#1554](https://github.com/Leaflet/Leaflet/pull/1554) - * Added `TileLayer` `getContainer` method (by [@tmcw](https://github.com/tmcw)). [#1433](https://github.com/Leaflet/Leaflet/pull/1433) - * Fixed `TileLayer.Canvas` `redraw` method chaining (by [@jieter](https://github.com/jieter)). [#1287](https://github.com/Leaflet/Leaflet/pull/1287) - * Added `TileLayer.WMS` `crs` option to be able to use WMS of CRS other than the map CRS (by [@kengu](https://github.com/kengu)). [#942](https://github.com/Leaflet/Leaflet/issues/942) [#945](https://github.com/Leaflet/Leaflet/issues/945) - * Added `popupopen` and `popupclose` events to various layers (by [@Koc](https://github.com/Koc)). [#738](https://github.com/Leaflet/Leaflet/pull/738) - * Added `Popup` `keepInView` option (thanks to [@lapo-luchini](https://github.com/lapo-luchini)) that prevents the popup from going off-screen while it's opened. [#1308](https://github.com/Leaflet/Leaflet/pull/1308) [#1052](https://github.com/Leaflet/Leaflet/issues/1052) - * Added `Marker` `togglePopup` method (by [@popox](https://github.com/popox)). [#1761](https://github.com/Leaflet/Leaflet/issues/1761) - * Added `Popup` `closeOnClick` option that overrides the same `Map` option for specific popups (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1669](https://github.com/Leaflet/Leaflet/issues/1669) - * Improved `Marker` and `Path` `bindPopup` method to also accept `Popup` objects (by [@snkashis](https://github.com/snkashis)). [#1385](https://github.com/Leaflet/Leaflet/pull/1385) [#1208](https://github.com/Leaflet/Leaflet/issues/1208) [#1402](https://github.com/Leaflet/Leaflet/pull/1402) - * Added `Marker` `setPopupContent` method (by [@snkashis](https://github.com/snkashis)). [#1373](https://github.com/Leaflet/Leaflet/pull/1373) - -##### Map API improvements - - * Improved all view changing methods of `Map` (`setView`, `panTo`, `setZoom`, `fitBounds`, etc.) to accept an options object, including the ability to precisely control zoom/pan animations they cause (force disable/enable, etc.). [#1617](https://github.com/Leaflet/Leaflet/pull/1617) [#1616](https://github.com/Leaflet/Leaflet/issues/1616) [#340](https://github.com/Leaflet/Leaflet/issues/340) [#483](https://github.com/Leaflet/Leaflet/issues/483) [#1164](https://github.com/Leaflet/Leaflet/issues/1164) [#1420](https://github.com/Leaflet/Leaflet/issues/1420) - * Improved `Map` `fitBounds` method to accept `padding` (or `paddingTopLeft` and `paddingBottomRight`) options, allowing you to zoom to an area with a certain padding in pixels (usually left for controls). [#859](https://github.com/Leaflet/Leaflet/issues/859) - * Improved `Map` `invalidateSize` to accept options object (`animate` and `pan`, the latter controls if it pans the map on size change). (by [@jacobtoye](https://github.com/jacobtoye) and [@mourner](https://github.com/mourner)). [#1766](https://github.com/Leaflet/Leaflet/issues/1766) [#1767](https://github.com/Leaflet/Leaflet/issues/1767) - * Added `Map` `setZoomAround` method for zooming while keeping a certain point fixed (used by scroll and double-click zooming). [#1157](https://github.com/Leaflet/Leaflet/issues/1157) - * Added `Map` `remove` method to properly destroy the map and clean up all events, and added corresponding `unload` event (by [@jfirebaugh](https://github.com/jfirebaugh) and [@mourner](https://github.com/mourner)). [#1434](https://github.com/Leaflet/Leaflet/issues/1434) [#1101](https://github.com/Leaflet/Leaflet/issues/1101) [#1621](https://github.com/Leaflet/Leaflet/issues/1621) - * Added `Map` `tap` handler that now contains all mobile hacks for enabling quick taps and long holds and `tapTolerance` option specifying the number of pixels you can shift your finger for click to still fire. - * Added `Map` `zoomAnimationThreshold` for setting the max zoom difference with which zoom animation can occur. [#1377](https://github.com/Leaflet/Leaflet/issues/1377) - * Improved `Map` `openPopup` method to also accept `(content, latlng)` signature as a shortcut. - * Improved `Map` `closePopup` method to optionally accept a popup object to close. [#1641](https://github.com/Leaflet/Leaflet/issues/1641) - * Improved `Map` `stopLocate` method to abort resetting map view if calling `locate` with `setView` option. [#747](https://github.com/Leaflet/Leaflet/issues/747) - * Improved `Map` to throw exception if the specified container id is not found (by [@tmcw](htts://github.com/tmcw)). [#1574](https://github.com/Leaflet/Leaflet/pull/1574) - * Improved `Map` `locationfound` event to pass all location data (heading, speed, etc.). [#984](https://github.com/Leaflet/Leaflet/issues/984) [#584](https://github.com/Leaflet/Leaflet/issues/584) [#987](https://github.com/Leaflet/Leaflet/issues/987) [#1028](https://github.com/Leaflet/Leaflet/issues/1028) - * Added `Map` `resize` event. [#1564](https://github.com/Leaflet/Leaflet/issues/1564) - * Added `Map` `zoomlevelschange` event that triggers when the current zoom range (min/max) changes (by [@moonlite](https://github.com/moonlite)). [#1376](https://github.com/Leaflet/Leaflet/pull/1376) - -##### Controls API improvements - - * Added **generic toolbar classes** for reuse by plugin developers (used by zoom control). - * Added `Map` `baselayerchange`, `overlayadd` and `overlayremove` events fired by `Control.Layers` (by [@calvinmetcalf](https://github.com/calvinmetcalf) and [@Xelio](https://github.com/Xelio)). [#1286](https://github.com/Leaflet/Leaflet/issues/1286) [#1634](https://github.com/Leaflet/Leaflet/issues/1634) - * Added `Control` `getContainer` method. [#1409](https://github.com/Leaflet/Leaflet/issues/1409) - -##### Misc API improvements - - * Made Leaflet classes compatible with **CoffeeScript class inheritance** syntax (by [@calvinmetcalf](https://github.com/calvinmetcalf)). [#1345](https://github.com/Leaflet/Leaflet/pull/1345) [#1314](https://github.com/Leaflet/Leaflet/issues/1314) - * Added `cleanAllEventListeners` method (aliased to `off` without arguments) to all events-enabled objects (by [@iirvine](https://github.com/iirvine)). [#1599](https://github.com/Leaflet/Leaflet/issues/1599) - * Added `addOneTimeEventListener` method (aliased to `once`) to all events-enabled objects (by [@iirvine](https://github.com/iirvine)). [#473](https://github.com/Leaflet/Leaflet/issues/473) [#1596](https://github.com/Leaflet/Leaflet/issues/1596) - * Added ability to pass coordinates as simple objects (`{lat: 50, lon: 30}` or `{lat: 50, lng: 30}`). [#1412](https://github.com/Leaflet/Leaflet/issues/1412) - * Added `LatLngBounds` `getNorth`, `getEast`, `getSouth`, `getWest` methods (by [@yohanboniface](https://github.com/yohanboniface)). [#1318](https://github.com/Leaflet/Leaflet/issues/1318) - * Added `AMD` support (Leaflet now registers itself as a `leaflet` AMD module) (with fixes from [@sheppard](https://github.com/sheppard)). [#1364](https://github.com/Leaflet/Leaflet/issues/1364) [#1778](https://github.com/Leaflet/Leaflet/issues/1778) - * Added `L.Util.trim` function (by [@kristerkari](https://github.com/kristerkari)). [#1607](https://github.com/Leaflet/Leaflet/pull/1607) - -#### Development workflow improvements - - * Switched from Jasmine to [Mocha](http://visionmedia.github.io/mocha/) with Expect.js (matchers) and Sinon (spies) for tests (by [@tmcw](https://github.com/tmcw) & [@jfirebaugh](https://github.com/jfirebaugh)). [#1479](https://github.com/Leaflet/Leaflet/issues/1479) - * Added [Karma](http://karma-runner.github.io) integration for running tests in a headless PhantomJS instance and code coverage reporting (by [@edjafarov](https://github.com/edjafarov)). [#1326](https://github.com/Leaflet/Leaflet/issues/1326) [#1340](https://github.com/Leaflet/Leaflet/pull/1340) - * Added [Travis CI integration](https://travis-ci.org/Leaflet/Leaflet) for linting and running tests for each commit and pull request automatically (by [@edjafarov](https://github.com/edjafarov)). [#1336](https://github.com/Leaflet/Leaflet/issues/1336) - * Significantly improved test coverage - * Added compatibility with lazy evaluation scripts (by [@kristerkari](https://github.com/kristerkari)). [#1288](https://github.com/Leaflet/Leaflet/issues/1288) [#1607](https://github.com/Leaflet/Leaflet/issues/1607) [#1288](https://github.com/Leaflet/Leaflet/issues/1288) - -### Bugfixes - -#### General bugfixes - - * Fixed lots of issues with extent restriction by `Map` `maxBounds`. [#1491](https://github.com/Leaflet/Leaflet/issues/1491) [#1475](https://github.com/Leaflet/Leaflet/issues/1475) [#1194](https://github.com/Leaflet/Leaflet/issues/1194) [#900](https://github.com/Leaflet/Leaflet/issues/900) [#1333](https://github.com/Leaflet/Leaflet/issues/1333) - * Fixed occasional crashes by disabling zoom animation if changing zoom level by more than 4 levels. [#1377](https://github.com/Leaflet/Leaflet/issues/1377) - * Fixed a bug with that caused stuttery keyboard panning in some cases (by [@tmcw](https://github.com/tmcw)). [#1710](https://github.com/Leaflet/Leaflet/issues/1710) - * Fixed a bug that caused unwanted scrolling of the page to the top of the map on focus. [#1228](https://github.com/Leaflet/Leaflet/issues/1228) [#1540](https://github.com/Leaflet/Leaflet/issues/1540) - * Fixed a bug where clicking on a marker with an open popup caused the popup to faded in again (by [@snkashis](https://github.com/snkashis)). [#506](https://github.com/Leaflet/Leaflet/issues/560) [#1386](https://github.com/Leaflet/Leaflet/pull/1386) - * Fixed a bug where zoom buttons disabled state didn't update on min/max zoom change (by [@snkashis](https://github.com/snkashis)). [#1372](https://github.com/Leaflet/Leaflet/pull/1372) [#1328](https://github.com/Leaflet/Leaflet/issues/1328) - * Fixed a bug where scrolling slightly wouldn't always zoom out the map (by [@cschwarz](https://github.com/cschwarz)). [#1575](https://github.com/Leaflet/Leaflet/pull/1575) - * Fixed popup close button to not leave an outline after clicking on it and reopening the popup (by [@dotCypress](https://github.com/dotCypress)). [#1537](https://github.com/Leaflet/Leaflet/pull/1537) - * Fixed a bug that prevented tiles from loading during pan animation. - * Fixed a bug with `contextmenu` events on popups falling through to map (by [@snkashis](https://github.com/snkashis)). [#1730](https://github.com/Leaflet/Leaflet/issues/1730) [#1732](https://github.com/Leaflet/Leaflet/issues/1732) - * Fixed `404` tile loading errors when browsing the map off the world bounds. - * Fixed shifted mouse events in some cases with map inside a relatively positioned parent (by [@scooterw](https://github.com/scooterw) and [@jec006](https://github.com/jec006)). [#1670](https://github.com/Leaflet/Leaflet/issues/1670) [#1684](https://github.com/Leaflet/Leaflet/issues/1684) [#1745](https://github.com/Leaflet/Leaflet/issues/1745) [#1744](https://github.com/Leaflet/Leaflet/issues/1744) - * Fixed a bug where tile layer z-index order sometimes broke after view reset. [#1422](https://github.com/Leaflet/Leaflet/issues/1422) - -#### Browser bugfixes - - * Fixed a bug with undesirable page scrolling in Firefox 17+ when you zoom the map by scrolling (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1789](https://github.com/Leaflet/Leaflet/issues/1789) [#1788](https://github.com/Leaflet/Leaflet/issues/1788) - * Fixed a bug where mouse coordinates where shifted in Firefox if the map was inside a positioned block on a scrolled page (by [@joschka](https://github.com/joschka)). [#1365](https://github.com/Leaflet/Leaflet/pull/1365) [#1322](https://github.com/Leaflet/Leaflet/issues/1322) - * Fixed a bug where box zoom didn't work in some cases in Firefox 18+ (by [@fabriceds](https://github.com/fabriceds)). [#1405](https://github.com/Leaflet/Leaflet/pull/1405) - * Fixed a bug where `TileLayer` opacity didn't work in IE 7-8 (by [@javisantana](https://github.com/javisantana) & [@danzel](https://gi -.com/danzel)). [#1084](https://github.com/Leaflet/Leaflet/issues/1084) [#1396](https://github.com/Leaflet/Leaflet/pull/1396) [#1371](https://github.com/Leaflet/Leaflet/issues/1371) - * Fixed Leaflet not working correctly in PhantomJS (by [@rassie](https://github.com/rassie)). [#1501](https://github.com/Leaflet/Leaflet/pull/1501) - -#### Mobile bugfixes - - * Fixed a bug with layers control on WinPhone8/IE10 Touch (by [@danzel](https://github.com/danzel)). [#1635](https://github.com/Leaflet/Leaflet/pull/1635) [#1539](https://github.com/Leaflet/Leaflet/issues/1539) - * Fixed a bug with click sometimes firing twice on WinPhone8/IE10 Touch (by [@danzel](https://github.com/danzel)). [#1694](https://github.com/Leaflet/Leaflet/issues/1694) - * Fixed a bug in Android where click was triggered twice on one tap (by [@jerel](https://github.com/jerel) & [@mourner](https://github.com/mourner)). [#1227](https://github.com/Leaflet/Leaflet/pull/1227) [#1263](https://github.com/Leaflet/Leaflet/issues/1263) [#1785](https://github.com/Leaflet/Leaflet/issues/1785) [#1694](https://github.com/Leaflet/Leaflet/issues/1694) - * Fixed a bug in Android where click on a collapsed layers control would immediately select one of the layers (by [@danzel](https://github.com/danzel)). [#1784](https://github.com/Leaflet/Leaflet/issues/1784) [#1694](https://github.com/Leaflet/Leaflet/issues/1694) - -#### API bugfixes - -##### General API bugfixes - - * Fixed click mouse event inside popups **not propagating outside the map** (fixes issues with jQuery.live and some mobile frameworks that rely on document click listeners). [#301](https://github.com/Leaflet/Leaflet/issues/301) - * Fixed a bug where event listener still fired even if it was removed on the same event in other listener (by [@spamdaemon](https://github.com/spamdaemon)). [#1661](https://github.com/Leaflet/Leaflet/issues/1661) [#1654](https://github.com/Leaflet/Leaflet/issues/1654) - * Fixed a bug where `L.point` and `L.latLng` factories weren't passing `null` and `undefined` values through. - * Fixed `DomEvent` `removeListener` function chaining (by [@pagameba](https://github.com/pagameba)). - * Fixed a bug where `removeEventListener` would throw an error if no events are registered on the object (by [@tjoekbezoer](https://github.com/tjoekbezoer)). [#1632](https://github.com/Leaflet/Leaflet/pull/1632) [#1631](https://github.com/Leaflet/Leaflet/issues/1631) - * Fixed a bug where `Point` `equals` and `contains` methods didn't accept points in array form. - * Fixed a bug where `LatLngBounds` `extend` of an undefined object would cause an error (by [@korzhyk](https://github.com/korzhyk)). [#1688](https://github.com/Leaflet/Leaflet/issues/1688) - * Fixed a bug where `Control.Attribution` `removeAttribution` of inexistant attribution corrupted the attribution text. [#1410](https://github.com/Leaflet/Leaflet/issues/1410) - * Fixed a bug where `setView` on an invisible map caused an error (by [@jfire](https://github.com/jfire)). [#1707](https://github.com/Leaflet/Leaflet/issues/1707) - * Fixed compatibility with Browserify (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1572](https://github.com/Leaflet/Leaflet/pull/1572) - -##### Layers API bugfixes - - * Fixed a bug where default marker icon path wasn't properly detected in some cases in IE6-7 (by [@calvinmetcalf](https://github.com/calvinmetcalf)). [#1294](https://github.com/Leaflet/Leaflet/pull/1294) - * Fixed a bug where `TileLayer.WMS` param values weren't escaped in URLs (by [@yohanboniface](https://github.com/yohanboniface)). [#1317](https://github.com/Leaflet/Leaflet/issues/1317) - * Fixed a bug where layers that belong to multiple feature groups didn't propagate events correctly (by [@danzel](https://github.com/danzel)). [#1359](https://github.com/Leaflet/Leaflet/pull/1359) - * Fixed a bug where `TileLayer.WMS` `tileSize` option was ignored (by [@brianhatchl](https://github.com/brianhatchl)). [#1080](https://github.com/brianhatchl) - * Fixed a bug where `Polyline` constructor could overwrite the source array (by [@snkashis](https://github.com/snkashis) and [@danzel](https://github.com/danzel)). [#1439](https://github.com/Leaflet/Leaflet/pull/1439) [#1092](https://github.com/Leaflet/Leaflet/issues/1092) [#1246](https://github.com/Leaflet/Leaflet/issues/1246) [#1426](https://github.com/Leaflet/Leaflet/issues/1426) - * Fixed a bug where marker dragging disabling/enabling wouldn't always work correctly (by [@snkashis](https://github.com/snkashis) and [@escaped](https://github.com/escaped)). [#1471](https://github.com/Leaflet/Leaflet/pull/1471) [#1551](https://github.com/Leaflet/Leaflet/pull/1551) - * Fixed `TileLayer` to prevent incorrect subdomain in case of negative tile coordinates (by [@malexeev](https://github.com/malexeev)). [#1532](https://github.com/Leaflet/Leaflet/pull/1532) - * Fixed polygons to normalize holes (remove last point if it's equal to the first one) (by [@jfirebaugh](https://github.com/jfirebaugh)). [#](https://github.com/Leaflet/Leaflet/pull/1467) [#1459](https://github.com/Leaflet/Leaflet/issues/1459) - * Fixed `DivIcon` `html` option to accept `0` as a value (by [@stuporglue](https://github.com/stuporglue)). [#1633](https://github.com/Leaflet/Leaflet/pull/1633) - * Fixed a bug with Canvas-based paths throwing an error on `mousemove` in certain conditions. [#1615](https://github.com/Leaflet/Leaflet/issues/1615) - * Fixed a bug where copies of the world wouldn't load if you set `TileLayer` `bounds` (by [@ansis](https://github.com/ansis)). [#1618](https://github.com/Leaflet/Leaflet/issues/1618) - * Fixed a bug where `TileLayer` `load` event wouldn't always fire correctly. [#1565](https://github.com/Leaflet/Leaflet/issues/1565) - * Fixed `TileLayer.WMS` compatibility with some old servers that only accepted request parameters in uppercase. [#1751](https://github.com/Leaflet/Leaflet/issues/1751) - * Fixed a bug with incorrect `L.Icon.Default.imagePath` detection in some cases. [#1657](https://github.com/Leaflet/Leaflet/issues/1657) - * Fixed a bug where layer `onRemove` was still called even if it was never added (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1729](https://github.com/Leaflet/Leaflet/issues/1729) - * Fixed a bug where calling `setRadius` on a Canvas-powered `CircleMarker` would cause an infinite loop (by [@snkashis](https://github.com/snkashis)). [#1712](https://github.com/Leaflet/Leaflet/issues/1712) [#1713](https://github.com/Leaflet/Leaflet/issues/1713) [#1728](https://github.com/Leaflet/Leaflet/issues/1728) - * Renamed `marker-icon@2x.png` to `marker-icon-2x.png` to fix compatibility with Google AppEngine. [#1552](https://github.com/Leaflet/Leaflet/issues/1552) [#1553](https://github.com/Leaflet/Leaflet/issues/1553) - * Fixed a bug where `popupclose` and `popupopen` events weren't fired for multipolygons and multipolylines (by [@tmcw](https://github.com/tmcw)). [#1681](https://github.com/Leaflet/Leaflet/issues/1681) - -##### Map API bugfixes - - * Fixed a bug where `Map` `fitBounds` wouldn't work correctly with large bounds (thanks to [@MaZderMind](https://github.com/MaZderMind)). [#1069](https://github.com/Leaflet/Leaflet/issues/1069) - * Fixed a bug where `Map` `hasLayer` wasn't handling `null` objects (by [@rvlasveld](https://github.com/rvlasveld)). [#1282](https://github.com/Leaflet/Leaflet/issues/1282) [#1302](https://github.com/Leaflet/Leaflet/pull/1302) - * Fixed a bug where `Map` `moveend` fired before `dragend` on drag (by [@oslek](https://github.com/oslek)). [#1374](https://github.com/Leaflet/Leaflet/pull/1374) - * Fixed a bug where panning with inertia produced an excessive `Map` `movestart` event on inertia start (by [@oslek](https://github.com/oslek)). [#1374](https://github.com/Leaflet/Leaflet/pull/1374) - * Fixed a bug where `Map` `moveend` fired repeatedly on window resize even if the actual map size didn't change (by [@oslek](https://github.com/oslek)). [#1374](https://github.com/Leaflet/Leaflet/pull/1374) - * Fixed a bug where `Map` `moveend` sometimes wasn't fired after drag (particularly often when dragging with a trackpad). - * Fixed a bug that would cause an error when trying to get the state of the map in a `Map` `load` event listener. [#962](https://github.com/Leaflet/Leaflet/issues/962) - * Added `Map` `autopanstart` event back (it was removed occasionally in previous version). [#1375](https://github.com/Leaflet/Leaflet/issues/1375) - * Fixed a bug with removing previously set `Map` `maxBounds` (by [@jec006](https://github.com/jec006)). [#1749](https://github.com/Leaflet/Leaflet/issues/1749) [#1750](https://github.com/Leaflet/Leaflet/issues/1750) - - -## 0.5.1 (February 6, 2013) - - * Fixed a regression with `GeoJSON` not accepting arrays of `FeatureCollection` (by [@snkashis](https://github.com/snkashis)). [#1299](https://github.com/Leaflet/Leaflet/pull/1299) [#1298](https://github.com/Leaflet/Leaflet/issues/1298) - * Fixed a regression with `CirleMarker` `setRadius` not working if called before adding the layer to the map (by [@danzel](https://github.com/danzel)). [#1342](https://github.com/Leaflet/Leaflet/issues/1342) [#1297](https://github.com/Leaflet/Leaflet/issues/1297) - -## 0.5 (January 17, 2013) - -### Breaking changes - -Be sure to read through these changes to avoid any issues when upgrading from older versions: - - * Removed default `LatLng` wrapping/clamping of coordinates (`-180, -90` to `180, 90`), wrapping moved to an explicit method (`LatLng` `wrap`). - * Disabled `Map` `worldCopyJump` option by default (jumping back to the original world copy when panning out of it). Enable it explicitly if you need it. - * Changed styles for the zoom control (you may need to update your custom styles for it). - -### Improvements - -#### Usability improvements - -##### Interaction - - * Added touch zoom, pan and double tap support for **IE10 touch devices and Metro apps** (by [@danzel](https://github.com/danzel) and [@veproza](https://github.com/veproza) with help from [@oliverheilig](https://github.com/oliverheilig)). [#1076](https://github.com/Leaflet/Leaflet/pull/1076) [#871](https://github.com/Leaflet/Leaflet/issues/871) - * **Improved panning inertia** to be much more natural and smooth. - * **Improved dragging cursors** in Chrome, Safari and Firefox (now grabbing hand cursors are used). - * Improved zoom animation curve for a better feel overall. - * Improved scroll wheel zoom to be more responsive. - * Improved panning animation performance in IE6-8. - -##### Controls - - * **Improved zoom control design** to look better, more neutral and in line with other controls, making it easier to customize and fit different website designs. Replaced +/- images with text. - * Improved zoom control to zoom by 3 levels if you hold shift while clicking on a button. - * Improved zoom control buttons to become visually disabled when min/max zoom is reached. [#917](https://github.com/Leaflet/Leaflet/issues/917) - * Improved scale control styles. - * Improved fallback control styles for IE6-8. - -##### Other - - * Added **retina support for markers** (through `Icon` `iconRetinaUrl` and `shadowRetinaUrl` options) (by [@danzel](https://github.com/danzel)). [#1048](https://github.com/Leaflet/Leaflet/issues/1048) [#1174](https://github.com/Leaflet/Leaflet/pull/1174) - * Added retina-sized default marker icon in addition to standard one (along with its SVG source and with some subtle design improvements) (by [@danzel](https://github.com/danzel)). [#1048](https://github.com/Leaflet/Leaflet/issues/1048) [#1174](https://github.com/Leaflet/Leaflet/pull/1174) - * Improved vectors updating/removing performance on Canvas backend (by [@danzel](https://github.com/danzel)). [#961](https://github.com/Leaflet/Leaflet/pull/961) - * Cut total images size from 10KB to 3.2KB with [Yahoo Smush.it](http://www.smushit.com/ysmush.it/). Thanks to Peter Rounce for suggestion. - -#### API improvements - - * Replaced `L.Transition` with a much better and simpler `L.PosAnimation`. - * Added `Class` `addInitHook` method for **adding constructor hooks to any classes** (great extension point for plugin authors). [#1123](https://github.com/Leaflet/Leaflet/issues/1123) - * Added `Map` `whenReady` method (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1063](https://github.com/Leaflet/Leaflet/pull/1063) - * Added optional `delta` argument to `Map` `zoomIn` and `zoomOut` (1 by default). - * Added `isValid` method to `LatLngBounds` and `Bounds` (by [@domoritz](https://github.com/domoritz)). [#972](https://github.com/Leaflet/Leaflet/pull/972) - * Added `Point` `equals` method. - * Added `Bounds` `getSize` method. - * Improved markers and vectors click event so that it propagates to map if no one is listening to it (by [@danzel](https://github.com/danzel)). [#834](https://github.com/Leaflet/Leaflet/issues/834) [#1033](https://github.com/Leaflet/Leaflet/pull/1033) - * Added `Path` `unbindPopup` and `closePopup` methods. - * Added `Path` `add` and `remove` event. - * Added `Marker` `riseOnHover` and `riseOffset` options (for bringing markers to front on hover, disabled by default) (by [jacobtoye](https://github.com/jacobtoye)). [#914](https://github.com/Leaflet/Leaflet/pull/914) [#920](https://github.com/Leaflet/Leaflet/issues/920) - * Added `Marker` `move` and `remove` events. - * Added `Marker` `contextmenu` event. [#223](https://github.com/Leaflet/Leaflet/issues/223) - * Added `Popup` `zoomAnimation` option (useful to disable when displaying flash content inside popups [#999](https://github.com/Leaflet/Leaflet/issues/999)). - * Added `FeatureGroup` `layeradd` and `layerremove` events (by [@jacobtoye](https://github.com/jacobtoye)). [#1122](https://github.com/Leaflet/Leaflet/issues/1122) - * Added `Control.Layers` `baselayerchange` event (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1064](https://github.com/Leaflet/Leaflet/pull/1064) - * Improved `Control.Layers` to support HTML in layer names (by [@aparshin](https://github.com/aparshin)). [#1055](https://github.com/Leaflet/Leaflet/pull/1055) [#1099](https://github.com/Leaflet/Leaflet/issues/1099) - * Added `CRS.Simple` to the list of built-in CRS and improved it to be more usable out of the box (it has different default scaling and transformation now), see `debug/map/simple-proj.html` for an example. - * Removed `Browser` `ua`, `gecko`, `opera` properties (no longer needed). - * Added `L.extend`, `L.bind`, `L.stamp`, `L.setOptions` shortcuts for corresponding `L.Util` methods. - * Disabled clearing of map container contents on map initialization (as a result of fixing [#278](https://github.com/Leaflet/Leaflet/issues/278)). - * Added `L.Util.isArray` function (by [@oslek](https://github.com/oslek)). [#1279](https://github.com/Leaflet/Leaflet/pull/1279) - * Added `mouseover` and `mouseout` events to canvas-based vector layers (by [@snkashis](https://github.com/snkashis)). [#1403](https://github.com/Leaflet/Leaflet/pull/1403) - * Added `Map` `eachLayer` to iterate over all layers added to the map (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1457](https://github.com/Leaflet/Leaflet/pull/1457) - * Added `TileLayer` `bounds` option to limit tile loading to a specific region (by [@adimitrov](https://github.com/adimitrov)). [#991](https://github.com/Leaflet/Leaflet/pull/991) - -### Bugfixes - -#### General bugfixes - - * Fixed broken tiles and zooming in RTL layouts (by [@danzel](https://github.com/danzel)). [#1099](https://github.com/Leaflet/Leaflet/pull/1099) [#1095](https://github.com/Leaflet/Leaflet/issues/1095) - * Fixed a bug with pan animation where it jumped to its end position if you tried to drag the map. - * Fixed a bug where shift-clicking on a map would zoom it to the max zoom level. - * Fixed a glitch with zooming in while panning animation is running. - * Fixed a glitch with dragging the map while zoom animation is running. - * Fixed a bug where slight touchpad scrolling or one-wheel scrolling wouln't always perform zooming. [#1039](https://github.com/Leaflet/Leaflet/issues/1039) - * Fixed a bug where `panBy` wouldn't round the offset values (so it was possible to make the map blurry with it). [#1085](https://github.com/Leaflet/Leaflet/issues/1085) - * Fixed a bug where you couldn't scroll the layers control with a mouse wheel. - * Fixed a regression where WMS tiles wouldn't wrap on date lines. [#970](https://github.com/Leaflet/Leaflet/issues/970) - * Fixed a bug where mouse interaction was affected by map container border width (by [@mohlendo](https://github.com/mohlendo)). [#1204](https://github.com/Leaflet/Leaflet/issues/1205) [#1205](https://github.com/Leaflet/Leaflet/pull/1205) - * Fixed a bug with weird vector zoom animation when using Canvas for rendering (by [@danzel](https://github.com/danzel)). [#1187](https://github.com/Leaflet/Leaflet/issues/1187) [#1188](https://github.com/Leaflet/Leaflet/pull/1188) - * Fixed a bug where max bounds limitation didn't work when navigating the map with a keyboard (by [@snkashis](https://github.com/snkashis)). [#989](https://github.com/Leaflet/Leaflet/issues/989) [#1221](https://github.com/Leaflet/Leaflet/pull/1221) - -#### API bugfixes - - * Fixed a bug where `TileLayer` `bringToBack` didn't work properly in some cases (by [@danzel](https://github.com/danzel)). [#963](https://github.com/Leaflet/Leaflet/pull/963) [#959](https://github.com/Leaflet/Leaflet/issues/959) - * Fixed a bug where removing a tile layer while dragging would throw an error (by [@danzel](https://github.com/danzel)). [#965](https://github.com/Leaflet/Leaflet/issues/965) [#968](https://github.com/Leaflet/Leaflet/pull/968) - * Fixed a bug where middle marker wasn't removed after deleting 2 end nodes from a polyline (by [@Svad](https://github.com/Svad)). [#1022](https://github.com/Leaflet/Leaflet/issues/1022) [#1023](https://github.com/Leaflet/Leaflet/pull/1023) - * Fixed a bug where `Map` `load` event happened too late (after `moveend`, etc.) (by [@jfirebaugh](https://github.com/jfirebaugh)). [#1027](https://github.com/Leaflet/Leaflet/pull/1027) - * Fixed `Circle` `getBounds` to return correct bounds and work without adding the circle to a map. [#1068](https://github.com/Leaflet/Leaflet/issues/1068) - * Fixed a bug where removing `Popup` on `viewreset` throwed an error (by [fnicollet](https://github.com/fnicollet) and [@danzel](https://github.com/danzel)). [#1098](https://github.com/Leaflet/Leaflet/pull/1098) [#1094](https://github.com/Leaflet/Leaflet/issues/1094) - * Fixed a bug where `TileLayer.Canvas` `drawTile` didn't receive tile zoom level in arguments. - * Fixed a bug where `GeoJSON` `resetStyle` would not fully reset a layer to its default style. [#1112](https://github.com/Leaflet/Leaflet/issues/1112) - * Fixed a bug that caused infinite recursion when using `latLngBounds` factory with coordinates as string values. [#933](https://github.com/Leaflet/Leaflet/issues/933) - * Fixed chaining on `Marker` `setIcon`, `setZIndexOffset`, `update` methods. [#1176](https://github.com/Leaflet/Leaflet/issues/1176) - * Fixed a bug with mouse interaction when the map container contained children with position other than absolute. [#278](https://github.com/Leaflet/Leaflet/issues/278) - * Fixed a bug with fill/stroke opacity conflicts when using Canvas for rendering (by [@danzel](https://github.com/danzel)). [#1186](https://github.com/Leaflet/Leaflet/issues/1186) [#1889](https://github.com/Leaflet/Leaflet/pull/1189) - * Fixed a bug where `FeatureGroup` `bindPopup` didn't take options into account. - * Fixed a bug where Canvas-based vector layers didn't cleanup click event on removal properly (by [@snkashis](https://github.com/snkashis)). [#1006](https://github.com/Leaflet/Leaflet/issues/1006) [#1273](https://github.com/Leaflet/Leaflet/pull/1273) - * Fixed a bug where `CircleMarker` `setStyle` didn't take `radius` into account (by [@fdlk](https://github.com/fdlk)). [#1012](https://github.com/Leaflet/Leaflet/issues/1012) [#1013](https://github.com/Leaflet/Leaflet/pull/1013) - * Fixed a bug where null GeoJSON geometries would throw an error instead of skipping (by [@brianherbert](https://github.com/brianherbert)). [#1240](https://github.com/Leaflet/Leaflet/pull/1240) - * Fixed a bug where Canvas-based vector layers passed incorrect `layer` event property on click (by [@snkashis](https://github.com/snkashis)). [#1215](https://github.com/Leaflet/Leaflet/issues/1215) [#1243](https://github.com/Leaflet/Leaflet/pull/1243) - * Fixed a bug where `TileLayer.WMS` didn't work correctly if the base URL contained query parameters (by [@snkashis](https://github.com/snkashis)). [#973](https://github.com/Leaflet/Leaflet/issues/973) [#1231](https://github.com/Leaflet/Leaflet/pull/1231) - * Fixed a bug where removing a polyline in editing state wouldn't clean up the editing handles (by [@mehmeta](https://github.com/mehmeta)). [#1233](https://github.com/Leaflet/Leaflet/pull/1233) - * Fixed a bug where removing a vector layer with a bound popup wouldn't clean up its click event properly (by [@yohanboniface](https://github.com/yohanboniface)). [#1229](https://github.com/Leaflet/Leaflet/pull/1229) - * Fixed a bug where `GeoJSON` features with `GeometryCollection` didn't pass properties to `pointToLayer` function (by [@calvinmetcalf](https://github.com/calvinmetcalf)). [#1097](https://github.com/Leaflet/Leaflet/pull/1097) - * Fixed `FeatureGroup` `eachLayer` chaining. [#1452](https://github.com/Leaflet/Leaflet/issues/1452) - -#### Browser bugfixes - - * Fixed a bug with map **freezing after zoom on Android 4.1**. [#1182](https://github.com/Leaflet/Leaflet/issues/1182) - * Fixed a bug where "Not implemented" error sometimes appeared in IE6-8 (by [@bryguy](https://github.com/bryguy) and [@lookfirst](https://github.com/lookfirst)). [#892](https://github.com/Leaflet/Leaflet/issues/892) [#893](https://github.com/Leaflet/Leaflet/pull/893) - * Fixed compatibility with SmoothWheel extension for Firefox (by [@waldir](https://github.com/waldir)). [#1011](https://github.com/Leaflet/Leaflet/pull/1011) - * Fixed a bug with popup layout in IE6-7 (by [@danzel](https://github.com/danzel)). [#1117](https://github.com/Leaflet/Leaflet/issues/1117) - * Fixed a bug with incorrect box zoom opacity in IE6-7 (by [@jacobtoye](https://github.com/jacobtoye)). [#1072](https://githubcom/Leaflet/Leaflet/pull/1072) - * Fixed a bug with box zoom throwing a JS error in IE6-7 (by [@danzel](https://github.com/danzel)). [#1071](https://github.com/Leaflet/Leaflet/pull/1071) - * Fixed a bug where `TileLayer` `bringToFront/Back()` throwed an error in IE6-8. [#1168](https://github.com/Leaflet/Leaflet/issues/1168) - * Fixed array type checking in the code to be more consistent in a cross-frame environment (by [@oslek](https://github.com/oslek)). [#1279](https://github.com/Leaflet/Leaflet/pull/1279) - * Fixed a bug with `-` key not working in Firefox 15+ (thanks to [@mattesCZ](https://github.com/mattesCZ)). [#869](https://github.com/Leaflet/Leaflet/issues/869) - -## 0.4.5 (October 25, 2012) - - * Fixed a bug with **wonky zoom animation in IE10** (by [@danzel](https://github.com/danzel)). [#1007](https://github.com/Leaflet/Leaflet/pull/1007) - * Fixed a bug with **wonky zoom animation in Chrome 23+** (by [@danzel](https://github.com/danzel)). [#1060](https://github.com/Leaflet/Leaflet/pull/1060) [#1056](https://github.com/Leaflet/Leaflet/issues/1056) - -## 0.4.4 (August 7, 2012) - -### Improvements - - * Improved `GeoJSON` `setStyle` to also accept function (like the corresponding option). - * Added `GeoJSON` `resetStyle(layer)`, useful for resetting hover state. - * Added `feature` property to layers created with `GeoJSON` (containing the GeoJSON feature data). - * Added `FeatureGroup` `bringToFront` and `bringToBack` methods (so that they would work for multipolys). - * Added optional `animate` argument to `Map` `invalidateSize` (by [@ajbeaven](https://github.com/ajbeaven)). [#857](https://github.com/Leaflet/Leaflet/pull/857) - -### Bugfixes - - * Fixed a bug where tiles sometimes disappeared on initial map load on Android 2/3 (by [@danzel](https://github.com/danzel)). [#868](https://github.com/Leaflet/Leaflet/pull/868) - * Fixed a bug where map would occasionally flicker near the border on zoom or pan on Chrome. - * Fixed a bug where `Path` `bringToFront` and `bringToBack` didn't return `this`. - * Removed zoom out on Win/Meta key binding (since it interferes with global keyboard shortcuts). [#869](https://github.com/Leaflet/Leaflet/issues/869) - -## 0.4.2 (August 1, 2012) - - * Fixed a bug where layers control radio buttons would not work correctly in IE7 (by [@danzel](https://github.com/danzel)). [#862](https://github.com/Leaflet/Leaflet/pull/862) - * Fixed a bug where `FeatureGroup` `removeLayer` would unbind popups of removed layers even if the popups were not put by the group (affected [Leaflet.markercluster](https://github.com/danzel/Leaflet.markercluster) plugin) (by [@danzel](https://github.com/danzel)). [#861](https://github.com/Leaflet/Leaflet/pull/861) - -## 0.4.1 (July 31, 2012) - - * Fixed a bug that caused marker shadows appear as opaque black in IE6-8. [#850](https://github.com/Leaflet/Leaflet/issues/850) - * Fixed a bug with incorrect calculation of scale by the scale control. [#852](https://github.com/Leaflet/Leaflet/issues/852) - * Fixed broken L.tileLayer.wms class factory (by [@mattcurrie](https://github.com/mattcurrie)). [#856](https://github.com/Leaflet/Leaflet/issues/856) - * Improved retina detection for `TileLayer` `detectRetina` option (by [@sxua](https://github.com/sxua)). [#854](https://github.com/Leaflet/Leaflet/issues/854) - -## 0.4 (July 30, 2012) - -### API simplification - -Leaflet 0.4 contains several API improvements that allow simpler, jQuery-like syntax ([example](https://gist.github.com/3038879)) while being backwards compatible with the previous approach (so you can use both styles): - - * Improved most methods and options to accept `LatLng`, `LatLngBounds`, `Point` and `Bounds` values in an array form (e.g. `map.panTo([lat, lng])` will be the same as `map.panTo(new L.LatLng(lat, lng))`) - * Added `addTo` method to all layer classes, e.g. `marker.addTo(map)` is equivalent to `map.addLayer(marker)` - * Added factory methods to most classes to be able to write code without `new` keyword, named the same as classes but starting with a lowercase letter, e.g. `L.map('map')` is the same as `new L.Map('map')` - -### Notable new features - - * Added configurable **panning inertia** - after a quick pan, the map slows down in the same direction. - * Added **keyboard navigation** for panning/zooming with keyboard arrows and +/- keys (by [@ericmmartinez](https://github.com/ericmmartinez)). [#663](https://github.com/Leaflet/Leaflet/pull/663) [#646](https://github.com/Leaflet/Leaflet/issues/646) - * Added smooth **zoom animation of markers, vector layers, image overlays and popups** (by [@danzel](https://github.com/danzel)). [#740](https://github.com/Leaflet/Leaflet/pull/740) [#758](https://github.com/Leaflet/Leaflet/issues/758) - * Added **Android 4+ pinch-zoom** support (by [@danzel](https://github.com/danzel)). [#774](https://github.com/Leaflet/Leaflet/pull/774) - * Added **polyline and polygon editing**. [#174](https://github.com/Leaflet/Leaflet/issues/174) - * Added an unobtrusive **scale control**. - * Added **DivIcon** class that easily allows you to create lightweight div-based markers. - * Added **Rectangle** vector layer (by [@JasonSanford](https://github.com/JasonSanford)). [#504](https://github.com/Leaflet/Leaflet/pull/504) - -### Improvements - -#### Usability improvements - - * Improved zooming so that you don't get a blank map when you zoom in or out twice quickly (by [@danzel](https://github.com/danzel)). [#7](https://github.com/Leaflet/Leaflet/issues/7) [#729](https://github.com/Leaflet/Leaflet/pull/729) - * Drag-panning now works even when there are markers in the starting point (helps on maps with lots of markers). [#506](https://github.com/Leaflet/Leaflet/issues/506) - * Improved panning performance even more (there are no wasted frames now). - * Improved pinch-zoom performance in mobile Chrome and Firefox. - * Improved map performance on window resize. - * Replaced box-shadow with border on controls for mobile devices to improve performance. - * Slightly improved default popup styling. - * Added `TileLayer` `detectRetina` option (`false` by default) that makes tiles show in a higher resolution on iOS retina displays (by [@Mithgol](https://github.com/Mithgol)). [#586](https://github.com/Leaflet/Leaflet/pull/586) - -#### GeoJSON API changes - -GeoJSON API was improved to be simpler and more flexible ([example](https://gist.github.com/3062900)). The changes are not backwards-compatible, so be sure to update your old code. - - * Added `style` option for styling vector layers, passed either as an object or as a function (to style vector layers according to GeoJSON properties). - * Added `filter` option to leave out features that don't correspond to a certain criteria (e.g. based on properties). - * Added `onEachFeature` option to execute certain code on each feature layer based on its properties (binding popups, etc). - * Changed `pointToLayer` function signature to provide `geojson` in addition to `latlng` when creating point features for more flexibility. - -#### Icon API changes - -Icon API was improved to be more flexible, but one of the changes is backwards-incompatible: you now need to pass different icon properties (like `iconUrl`) inside an options object ([example](https://gist.github.com/3076084)). - - * Converted `Icon` properties to options, changed constructor signature to `Icon(options)`. - * Moved default marker icon options to `L.Icon.Default` class (which extends from `L.Icon`). - * Added `Icon` `className` option to assign a custom class to an icon. - * Added `Icon` `shadowAnchor` option to set the anchor of the shadow. - * Made all `Icon` options except `iconUrl` optional (if not specified, they'll be chosen automatically or implemented using CSS). Anchor is centered by default (if size is specified), and otherwise can be set through CSS using negative margins. - -#### Control API changes - - * Added `setPosition` and `getPosition` to all controls, as well as ability to pass certain position as an option when creating a control. - * Made controls implementation easier (now more magic happens under the hood). - * Replaced ugly control position constants (e.g. `L.Control.Position.TOP_LEFT`) with light strings (`'topleft'`, `'bottomright'`, etc.) - -#### Other breaking API changes - - * Improved `TileLayer` constructor to interpolate URL template values from options (removed third `urlParams` argument). - * Changed `TileLayer` `scheme: 'tms'` option to `tms: true`. - * Removed `Map` `locateAndSetView` method (use `locate` with `setView: true` option) - * Changed popup `minWidth` and `maxWidth` options to be applied to content element, not the whole popup. - * Moved `prefix` argument to `options` in `Control.Attribution` constructor. - * Renamed `L.VERSION` to `L.version`. - -#### Other API improvements - - * Improved `on` and `off` methods to also accept `(eventHash[, context])`, as well as multiple space-separated events (by [@Guiswa](https://github.com/Guiswa)). [#770](https://github.com/Leaflet/Leaflet/pull/770) - * Improved `off` to remove all listeners of the event if no function was specified (by [@Guiswa](https://github.com/Guiswa)). [#770](https://github.com/Leaflet/Leaflet/pull/770) [#691](https://github.com/Leaflet/Leaflet/issues/691) - * Added `TileLayer` `setZIndex` method for controlling the order of tile layers (thanks to [@mattcurrie](https://github.com/mattcurrie)). [#837](https://github.com/Leaflet/Leaflet/pull/837) - * Added `Control.Layers` `autoZIndex` option (on by default) to preserve the order of tile layers when switching. - * Added `TileLayer` `redraw` method for re-requesting tiles (by [@greeninfo](https://github.com/greeninfo)). [#719](https://github.com/Leaflet/Leaflet/issues/719) - * Added `TileLayer` `setUrl` method for dynamically changing the tile URL template. - * Added `bringToFront` and `bringToBack` methods to `TileLayer`, `ImageOverlay` and vector layers. [#185](https://github.com/Leaflet/Leaflet/issues/185) [#505](https://github.com/Leaflet/Leaflet/issues/505) - * Added `TileLayer` `loading` event that fires when its tiles start to load (thanks to [@lapinos03](https://github.com/lapinos03)). [#177](https://github.com/Leaflet/Leaflet/issues/177) - * Added `TileLayer.WMS` `setParams` method for setting WMS parameters at runtime (by [@greeninfo](https://github.com/greeninfo)). [#719](https://github.com/Leaflet/Leaflet/issues/719) - * Added `TileLayer.WMS` subdomain support (`{s}` in the url) (by [@greeninfo](https://github.com/greeninfo)). [#735](https://github.com/Leaflet/Leaflet/issues/735) - * Added `originalEvent` property to `MouseEvent` (by [@k4](https://github.com/k4)). [#521](https://github.com/Leaflet/Leaflet/pull/521) - * Added `containerPoint` property to `MouseEvent`. [#413](https://github.com/Leaflet/Leaflet/issues/413) - * Added `contextmenu` event to vector layers (by [@ErrorProne](https://github.com/ErrorProne)). [#500](https://github.com/Leaflet/Leaflet/pull/500) - * Added `LayerGroup` `eachLayer` method for iterating over its members. - * Added `FeatureGroup` `mousemove` and `contextmenu` events (by [@jacobtoye](https://github.com/jacobtoye)). [#816](https://github.com/Leaflet/Leaflet/pull/816) - * Added chaining to `DomEvent` methods. - * Added `on` and `off` aliases for `DomEvent` `addListener` and `removeListener` methods. - * Added `L_NO_TOUCH` global variable switch (set it before Leaflet inclusion) which disables touch detection, helpful for desktop apps built using QT. [#572](https://github.com/Leaflet/Leaflet/issues/572) - * Added `dashArray` option to vector layers for making dashed strokes (by [jacobtoye](https://github.com/jacobtoye)). [#821](https://github.com/Leaflet/Leaflet/pull/821) [#165](https://github.com/Leaflet/Leaflet/issues/165) - * Added `Circle` `getBounds` method. [#440](https://github.com/Leaflet/Leaflet/issues/440) - * Added `Circle` `getLatLng` and `getRadius` methods (by [@Guiswa](https://github.com/Guiswa)). [#655](https://github.com/Leaflet/Leaflet/pull/655) - * Added `openPopup` method to all vector layers. [#246](https://github.com/Leaflet/Leaflet/issues/246) - * Added public `redraw` method to vector layers (useful if you manipulate their `LatLng` points directly). - * Added `Marker` `opacity` option and `setOpacity` method. - * Added `Marker` `update` method. [#392](https://github.com/Leaflet/Leaflet/issues/392) - * Improved `Marker` `openPopup` not to raise an error if it doesn't have a popup. [#507](https://github.com/Leaflet/Leaflet/issues/507) - * Added `ImageOverlay` `opacity` option and `setOpacity` method. [#438](https://github.com/Leaflet/Leaflet/issues/438) - * Added `Popup` `maxHeight` option that makes content inside the popup scrolled if it doesn't fit the specified max height. - * Added `Popup` `openOn(map)` method (similar to `Map` `openPopup`). - * Added `Map` `getContainer` method (by [@Guiswa](https://github.com/Guiswa)). [#654](https://github.com/Leaflet/Leaflet/pull/654) - * Added `Map` `containerPointToLatLng` and `latLngToContainerPoint` methods. [#474](https://github.com/Leaflet/Leaflet/issues/474) - * Added `Map` `addHandler` method. - * Added `Map` `mouseup` and `autopanstart` events. - * Added `LatLngBounds` `pad` method that returns bounds extended by a percentage (by [@jacobtoye](https://github.com/jacobtoye)). [#492](https://github.com/Leaflet/Leaflet/pull/492) - * Moved dragging cursor styles from JS code to CSS. - -### Bug fixes - -#### General bugfixes - - * Fixed a bug where the map was zooming incorrectly inside a `position: fixed` container (by [@chx007](https://github.com/chx007)). [#602](https://github.com/Leaflet/Leaflet/pull/602) - * Fixed a bug where scaled tiles weren't cleared up after zoom in some cases (by [@cfis](https://github.com/cfis)) [#683](https://github.com/Leaflet/Leaflet/pull/683) - * Fixed a bug where map wouldn't drag over a polygon with a `mousedown` listener. [#834](https://github.com/Leaflet/Leaflet/issues/834) - -#### API bugfixes - - * Fixed a regression where removeLayer would not remove corresponding attribution. [#488](https://github.com/Leaflet/Leaflet/issues/488) - * Fixed a bug where popup close button wouldn't work on manually added popups. [#423](https://github.com/Leaflet/Leaflet/issues/423) - * Fixed a bug where marker click event would stop working if you dragged it and then disabled dragging. [#434](https://github.com/Leaflet/Leaflet/issues/434) - * Fixed a bug where `TileLayer` `setOpacity` wouldn't work when setting it back to 1. - * Fixed a bug where vector layer `setStyle({stroke: false})` wouldn't remove stroke and the same for fill. [#441](https://github.com/Leaflet/Leaflet/issues/441) - * Fixed a bug where `Marker` `bindPopup` method wouldn't take `offset` option into account. - * Fixed a bug where `TileLayer` `load` event wasn't fired if some tile didn't load (by [@lapinos03](https://github.com/lapinos03) and [@cfis](https://github.com/cfis)) [#682](https://github.com/Leaflet/Leaflet/pull/682) - * Fixed error when removing `GeoJSON` layer. [#685](https://github.com/Leaflet/Leaflet/issues/685) - * Fixed error when calling `GeoJSON` `clearLayer` (by [@runderwood](https://github.com/runderwood)). [#617](https://github.com/Leaflet/Leaflet/pull/617) - * Fixed a bug where `Control` `setPosition` wasn't always working correctly (by [@ericmmartinez](https://github.com/ericmmartinez)). [#657](https://github.com/Leaflet/Leaflet/pull/657) - * Fixed a bug with `Util.bind` sometimes losing arguments (by [@johtso](https://github.com/johtso)). [#588](https://github.com/Leaflet/Leaflet/pull/588) - * Fixed a bug where `drag` event was sometimes fired after `dragend`. [#555](https://github.com/Leaflet/Leaflet/issues/555) - * Fixed a bug where `TileLayer` `load` event was firing only once (by [@lapinos03](https://github.com/lapinos03) and [shintonik](https://github.com/shintonik)). [#742](https://github.com/Leaflet/Leaflet/pull/742) [#177](https://github.com/Leaflet/Leaflet/issues/177) - * Fixed a bug where `FeatureGroup` popup events where not cleaned up after removing a layer from it (by [@danzel](https://github.com/danzel)). [#775](https://github.com/Leaflet/Leaflet/pull/775) - * Fixed a bug where `DomUtil.removeClass` didn't remove trailing spaces (by [@jieter](https://github.com/jieter)). [#784](https://github.com/Leaflet/Leaflet/pull/784) - * Fixed a bug where marker popup didn't take popup offset into account. - * Fixed a bug that led to an error when polyline was removed inside a `moveend` listener. - * Fixed a bug where `LayerGroup` `addLayer` wouldn't check if a layer has already been added (by [@danzel](https://github.com/danzel)). [798](https://github.com/Leaflet/Leaflet/pull/798) - -#### Browser bugfixes - - * Fixed broken zooming on IE10 beta (by [@danzel](https://github.com/danzel)). [#650](https://github.com/Leaflet/Leaflet/issues/650) [#751](https://github.com/Leaflet/Leaflet/pull/751) - * Fixed a bug that broke Leaflet for websites that had XHTML content-type header set (by [lars-sh](https://github.com/lars-sh)). [#801](https://github.com/Leaflet/Leaflet/pull/801) - * Fixed a bug that caused popups to be empty in IE when passing a DOM node as the content (by [@nrenner](https://github.com/nrenner)). [#472](https://github.com/Leaflet/Leaflet/pull/472) - * Fixed inability to use scrolled content inside popup due to mouse wheel propagation. - * Fixed a bug that caused jumping/stuttering of panning animation in some cases. - * Fixed a bug where popup size was calculated incorrectly in IE. - * Fixed a bug where cursor would flicker when dragging a marker. - * Fixed a bug where clickable paths on IE9 didn't have a hand cursor (by [naehrstoff](https://github.com/naehrstoff)). [#671](https://github.com/Leaflet/Leaflet/pull/671) - * Fixed a bug in IE with disappearing icons when changing opacity (by [@tagliala](https://github.com/tagliala) and [DamonOehlman](https://github.com/DamonOehlman)). [#667](https://github.com/Leaflet/Leaflet/pull/667) [#600](https://github.com/Leaflet/Leaflet/pull/600) - * Fixed a bug with setting opacity on IE10 (by [@danzel](https://github.com/danzel)). [796](https://github.com/Leaflet/Leaflet/pull/796) - * Fixed a bug where `Control.Layers` didn't work on IE7. [#652](https://github.com/Leaflet/Leaflet/issues/652) - * Fixed a bug that could cause false `mousemove` events on click in Chrome (by [@stsydow](https://github.com/stsydow)). [#757](https://github.com/Leaflet/Leaflet/pull/757) - * Fixed a bug in IE6-8 where adding fill or stroke on vector layers after initialization with `setStyle` would break the map. [#641](https://github.com/Leaflet/Leaflet/issues/641) - * Fixed a bug with setOpacity in IE where it would not work correctly if used more than once on the same element (by [@ajbeaven](https://github.com/ajbeaven)). [#827](https://github.com/Leaflet/Leaflet/pull/827) - * Fixed a bug in Chrome where transparent control corners sometimes couldn't be clicked through (by [@danzel](https://github.com/danzel)). [#836](https://github.com/Leaflet/Leaflet/pull/836) [#575](https://github.com/Leaflet/Leaflet/issues/575) - -#### Mobile browser bugfixes - - * Fixed a bug that sometimes caused map to disappear completely after zoom on iOS (by [@fr1n63](https://github.com/fr1n63)). [#580](https://github.com/Leaflet/Leaflet/issues/580) [#777](https://github.com/Leaflet/Leaflet/pull/777) - * Fixed a bug that often caused vector layers to flicker on drag end on iOS (by [@krawaller](https://github.com/krawaller)). [#18](https://github.com/Leaflet/Leaflet/issues/18) - * Fixed a bug with false map click events on pinch-zoom and zoom/layers controls click. [#485](https://github.com/Leaflet/Leaflet/issues/485) - * Fixed a bug where touching the map with two or more fingers simultaneously would raise an error. - * Fixed a bug where zoom control wasn't always visible on Android 3. [#335](https://github.com/Leaflet/Leaflet/issues/335) - * Fixed a bug where opening the layers control would propagate a click to the map (by [@jacobtoye](https://github.com/jacobtoye)). [#638](https://github.com/Leaflet/Leaflet/pull/638) - * Fixed a bug where `ImageOverlay` wouldn't stretch properly on zoom on Android 2. [#651](https://github.com/Leaflet/Leaflet/issues/651) - * Fixed a bug where `clearLayers` for vector layers on a Canvas backend (e.g. on Android 2) would take unreasonable amount of time. [#785](https://github.com/Leaflet/Leaflet/issues/785) - * Fixed a bug where `setLatLngs` and similar methods on vector layers on a Canvas backend would not update the layers immediately. [#732](https://github.com/Leaflet/Leaflet/issues/732) - -## 0.3.1 (February 14, 2012) - - * Fixed a regression where default marker icons wouldn't work if Leaflet include url contained a query string. - * Fixed a regression where tiles sometimes flickered with black on panning in iOS. - -## 0.3 (February 13, 2012) - -### Major features - - * Added **Canvas backend** for vector layers (polylines, polygons, circles). This enables vector support on Android < 3, and it can also be optionally preferred over SVG for a performance gain in some cases. Thanks to [@florianf](https://github.com/florianf) for a big part of this work. - * Added **layers control** (`Control.Layers`) for convenient layer switching. - * Added ability to set **max bounds** within which users can pan/zoom. [#93](https://github.com/Leaflet/Leaflet/issues/93) - -### Improvements - -#### Usability improvements - - * Map now preserves its center after resize. - * When panning to another copy of the world (that's infinite horizontally), map overlays now jump to corresponding positions. [#273](https://github.com/Leaflet/Leaflet/issues/273) - * Limited maximum zoom change on a single mouse wheel movement (so you won't zoom across the whole zoom range in one scroll). [#149](https://github.com/Leaflet/Leaflet/issues/149) - * Significantly improved line simplification performance (noticeable when rendering polylines/polygons with tens of thousands of points) - * Improved circles performance by not drawing them if they're off the clip region. - * Improved stability of zoom animation (less flickering of tiles). - -#### API improvements - - * Added ability to add a tile layer below all others (`map.addLayer(layer, true)`) (useful for switching base tile layers). - * Added `Map` `zoomstart` event (thanks to [@Fabiz](https://github.com/Fabiz)). [#377](https://github.com/Leaflet/Leaflet/pull/377) - * Improved `Map` `locate` method, added ability to watch location continuously and more options. [#212](https://github.com/Leaflet/Leaflet/issues/212) - * Added second argument `inside` to `Map` `getBoundsZoom` method that allows you to get appropriate zoom for the view to fit *inside* the given bounds. - * Added `hasLayer` method to `Map`. - * Added `Marker` `zIndexOffset` option to be able to set certain markers below/above others. [#65](https://github.com/Leaflet/Leaflet/issues/65) - * Added `urlParams` third optional argument to `TileLayer` constructor for convenience: an object with properties that will be evaluated in the URL template. - * Added `TileLayer` `continuousWorld` option to disable tile coordinates checking/wrapping. - * Added `TileLayer` `tileunload` event fired when tile gets removed after panning (by [@CodeJosch](https://github.com/CodeJosch)). [#256](https://github.com/Leaflet/Leaflet/pull/256) - * Added `TileLayer` `zoomOffset` option useful for non-256px tiles (by [@msaspence](https://github.com/msaspence)). - * Added `TileLayer` `zoomReverse` option to reverse zoom numbering (by [@Majiir](https://github.com/Majiir)). [#406](https://github.com/Leaflet/Leaflet/pull/406) - * Added `TileLayer.Canvas` `redraw` method (by [@mortenbekditlevsen](https://github.com/mortenbekditlevsen)). [#459](https://github.com/Leaflet/Leaflet/pull/459) - * Added `Polyline` `closestLayerPoint` method that's can be useful for interaction features (by [@anru](https://github.com/anru)). [#186](https://github.com/Leaflet/Leaflet/pull/186) - * Added `setLatLngs` method to `MultiPolyline` and `MultiPolygon` (by [@anru](https://github.com/anru)). [#194](https://github.com/Leaflet/Leaflet/pull/194) - * Added `getBounds` method to `Polyline` and `Polygon` (by [@JasonSanford](https://github.com/JasonSanford)). [#253](https://github.com/Leaflet/Leaflet/pull/253) - * Added `getBounds` method to `FeatureGroup` (by [@JasonSanford](https://github.com/JasonSanford)). [#557](https://github.com/Leaflet/Leaflet/pull/557) - * Added `FeatureGroup` `setStyle` method (also inherited by `MultiPolyline` and `MultiPolygon`). [#353](https://github.com/Leaflet/Leaflet/issues/353) - * Added `FeatureGroup` `invoke` method to call a particular method on all layers of the group with the given arguments. - * Added `ImageOverlay` `load` event. [#213](https://github.com/Leaflet/Leaflet/issues/213) - * Added `minWidth` option to `Popup` (by [@marphi](https://github.com/marphi)). [#214](https://github.com/Leaflet/Leaflet/pull/214) - * Improved `LatLng` constructor to be more tolerant (and throw descriptive error if latitude or longitude can't be interpreted as a number). [#136](https://github.com/Leaflet/Leaflet/issues/136) - * Added `LatLng` `distanceTo` method (great circle distance) (by [@mortenbekditlevsen](https://github.com/mortenbekditlevsen)). [#462](https://github.com/Leaflet/Leaflet/pull/462) - * Added `LatLngBounds` `toBBoxString` method for convenience (by [@JasonSanford](https://github.com/JasonSanford)). [#263](https://github.com/Leaflet/Leaflet/pull/263) - * Added `LatLngBounds` `intersects(otherBounds)` method (thanks to [@pagameba](https://github.com/pagameba)). [#350](https://github.com/Leaflet/Leaflet/pull/350) - * Made `LatLngBounds` `extend` method to accept other `LatLngBounds` in addition to `LatLng` (by [@JasonSanford](https://github.com/JasonSanford)). [#553](https://github.com/Leaflet/Leaflet/pull/553) - * Added `Bounds` `intersects(otherBounds)` method. [#461](https://github.com/Leaflet/Leaflet/issues/461) - * Added `L.Util.template` method for simple string template evaluation. - * Added `DomUtil.removeClass` method (by [@anru](https://github.com/anru)). - * Improved browser-specific code to rely more on feature detection rather than user agent string. - * Improved superclass access mechanism to work with inheritance chains of 3 or more classes; now you should use `Klass.superclass` instead of `this.superclass` (by [@anru](https://github.com/anru)). [#179](https://github.com/Leaflet/Leaflet/pull/179) - * Added `Map` `boxzoomstart` and `boxzoomend` events (by [@zedd45](https://github.com/zedd45)). [#554](https://github.com/Leaflet/Leaflet/pull/554) - * Added `Popup` `contentupdate` event (by [@mehmeta](https://github.com/mehmeta)). [#548](https://github.com/Leaflet/Leaflet/pull/548) - -#### Breaking API changes - - * `shiftDragZoom` map option/property renamed to `boxZoom`. - * Removed `mouseEventToLatLng` method (bringed back in 0.4). - -#### Development workflow improvements - - * Build system completely overhauled to be based on Node.js, Jake, JSHint and UglifyJS. - * All code is now linted for errors and conformity with a strict code style (with JSHint), and wont build unless the check passes. - -### Bugfixes - -#### General bugfixes - - * Fixed a bug where `Circle` was rendered with incorrect radius (didn't take projection exagerration into account). [#331](https://github.com/Leaflet/Leaflet/issues/331) - * Fixed a bug where `Map` `getBounds` would work incorrectly on a date line cross. [#295](https://github.com/Leaflet/Leaflet/issues/295) - * Fixed a bug where polygons and polylines sometimes rendered incorrectly on some zoom levels. [#381](https://github.com/Leaflet/Leaflet/issues/381) - * Fixed a bug where fast mouse wheel zoom worked incorrectly when approaching min/max zoom values. - * Fixed a bug where `GeoJSON` `pointToLayer` option wouldn't work in a `GeometryCollection`. [#391](https://github.com/Leaflet/Leaflet/issues/391) - * Fixed a bug with incorrect rendering of GeoJSON on a date line cross. [#354](https://github.com/Leaflet/Leaflet/issues/354) - * Fixed a bug where map panning would stuck forever after releasing the mouse over an iframe or a flash object (thanks to [@sten82](https://github.com/sten82)). [#297](https://github.com/Leaflet/Leaflet/pull/297) [#64](https://github.com/Leaflet/Leaflet/issues/64) - * Fixed a bug where mouse wheel zoom worked incorrectly if map is inside scrolled container (partially by [@chrillo](https://github.com/chrillo)). [#206](https://github.com/Leaflet/Leaflet/issues/206) - * Fixed a bug where it was possible to add the same listener twice. [#281](https://github.com/Leaflet/Leaflet/issues/281) - * Fixed a bug where `Circle` was rendered with incorrect radius (didn't take projection exaggeration into account). [#331](https://github.com/Leaflet/Leaflet/issues/331) - * Fixed a bug where `Marker` `setIcon` was not working properly (by [@marphi](https://github.com/marphi)). [#218](https://github.com/Leaflet/Leaflet/pull/218) [#311](https://github.com/Leaflet/Leaflet/issues/311) - * Fixed a bug where `Marker` `setLatLng` was not working if it's set before adding the marker to a map. [#222](https://github.com/Leaflet/Leaflet/issues/222) - * Fixed a bug where marker popup would not move on `Marker` `setLatLng` (by [@tjarratt](https://github.com/tjarratt)). [#272](https://github.com/Leaflet/Leaflet/pull/272) - * Fixed a bug where static properties of a child class would not override the parent ones. - * Fixed broken popup `closePopup` option (by [@jgerigmeyer](https://github.com/jgerigmeyer)). - * Fixed a bug that caused en error when dragging marker with icon without shadow (by [@anru](https://github.com/anru)). [#178](https://github.com/Leaflet/Leaflet/issues/178) - * Fixed a typo in `Bounds` `contains` method (by [@anru](https://github.com/anru)). [#180](https://github.com/Leaflet/Leaflet/pull/180) - * Fixed a bug where creating an empty `Polygon` with `new L.Polygon()` would raise an error. - * Fixed a bug where drag event fired before the actual movement of layer (by [@anru](https://github.com/anru)). [#197](https://github.com/Leaflet/Leaflet/pull/197) - * Fixed a bug where map click caused an error if dragging is initially disabled. [#196](https://github.com/Leaflet/Leaflet/issues/196) - * Fixed a bug where map `movestart` event would fire after zoom animation. - * Fixed a bug where attribution prefix would not update on `setPrefix`. [#195](https://github.com/Leaflet/Leaflet/issues/195) - * Fixed a bug where `TileLayer` `load` event wouldn't fire in some edge cases (by [@dravnic](https://github.com/dravnic)). - * Fixed a bug related to clearing background tiles after zooming (by [@neno-giscloud](https://github.com/neno-giscloud) & [@dravnic](https://github.com/dravnic)). - * Fixed a bug that sometimes caused map flickering after zoom animation. - * Fixed a bug related to cleaning up after removing tile layers (by [@dravnic](https://github.com/dravnic)). [#276](https://github.com/Leaflet/Leaflet/pull/276) - * Fixed a bug that made selecting text in the attribution control impossible. [#279](https://github.com/Leaflet/Leaflet/issues/279) - * Fixed a bug when initializing a map in a non-empty div. [#278](https://github.com/Leaflet/Leaflet/issues/278) - * Fixed a bug where `movestart` didn't fire on panning animation. - * Fixed a bug in Elliptical Mercator formula that affeted `EPSG:3395` CRS (by [@Savvkin](https://github.com/Savvkin)). [#358](https://github.com/Leaflet/Leaflet/pull/358) - -#### Browser bugfixes - - * Fixed occasional crashes on Mac Safari (thanks to [@lapinos03](https://github.com/lapinos03)). [#191](https://github.com/Leaflet/Leaflet/issues/191) - * Fixed a bug where resizing the map would sometimes make it blurry on WebKit (by [@mortenbekditlevsen](https://github.com/mortenbekditlevsen)). [#453](https://github.com/Leaflet/Leaflet/pull/453) - * Fixed a bug that raised error in IE6-8 when clicking on popup close button. [#235](https://github.com/Leaflet/Leaflet/issues/235) - * Fixed a bug with Safari not redrawing UI immediately after closing a popup. [#296](https://github.com/Leaflet/Leaflet/issues/296) - * Fixed a bug that caused performance drop and high CPU usage when calling `setView` or `panTo` to the current center. [#231](https://github.com/Leaflet/Leaflet/issues/231) - * Fixed a bug that caused map overlays to appear blurry in some cases under WebKit browsers. - * Fixed a bug that was causing errors in some Webkit/Linux builds (requestAnimationFrame-related), thanks to Chris Martens. - -#### Mobile browser bugfixes - - * Fixed a bug that caused an error when clicking vector layers under iOS. [#204](https://github.com/Leaflet/Leaflet/issues/204) - * Fixed crash on Android 3+ when panning or zooming (by [@florian](https://github.com/florianf)). [#137](https://github.com/Leaflet/Leaflet/issues/137) - * Fixed a bug on Android 2/3 that sometimes caused the map to disappear after zooming. [#69](https://github.com/Leaflet/Leaflet/issues/69) - * Fixed a bug on Android 3 that caused tiles to shift position on a big map. - * Fixed a bug that caused the map to pan when touch-panning inside a popup. [#452](https://github.com/Leaflet/Leaflet/issues/452) - * Fixed a bug that caused click delays on zoom control. - - -## 0.2.1 (2011-06-18) - - * Fixed regression that caused error in `TileLayer.Canvas`. - -## 0.2 (2011-06-17) - -### Major features - - * Added **WMS** support (`TileLayer.WMS` layer). - * Added different **projections** support, having `EPSG:3857`, `EPSG:4326` and `EPSG:3395` out of the box (through `crs` option in `Map`). Thanks to [@Miroff](https://github.com/Miroff) & [@Komzpa](https://github.com/Komzpa) for great advice and explanation regarding this. - * Added **GeoJSON** layer support. - -### Improvements - -#### Usability improvements - - * Improved panning performance in Chrome and FF considerably with the help of `requestAnimationFrame`. [#130](https://github.com/Leaflet/Leaflet/issues/130) - * Improved click responsiveness in mobile WebKit (now it happens without delay). [#26](https://github.com/Leaflet/Leaflet/issues/26) - * Added tap tolerance (so click happens even if you moved your finger slighly when tapping). - * Improved geolocation error handling: better error messages, explicit timeout, set world view on locateAndSetView failure. [#61](https://github.com/Leaflet/Leaflet/issues/61) - -#### API improvements - - * Added **MultiPolyline** and **MultiPolygon** layers. [#77](https://github.com/Leaflet/Leaflet/issues/77) - * Added **LayerGroup** and **FeatureGroup** layers for grouping other layers. - * Added **TileLayer.Canvas** for easy creation of canvas-based tile layers. - * Changed `Circle` to be zoom-dependent (with radius in meters); circle of a permanent size is now called `CircleMarker`. - * Added `mouseover` and `mouseout` events to map, markers and paths; added map `mousemove` event. - * Added `setLatLngs`, `spliceLatLngs`, `addLatLng`, `getLatLngs` methods to polylines and polygons. - * Added `setLatLng` and `setRadius` methods to `Circle` and `CircleMarker`. - * Improved `LatLngBounds contains` method to accept `LatLng` in addition to `LatLngBounds`, the same for `Bounds contains` and `Point` - * Improved `LatLngBounds` & `Bounds` to allow their instantiation without arguments (by [@snc](https://github.com/snc)). - * Added TMS tile numbering support through `TileLayer` `scheme: 'tms'` option (by [@tmcw](https://github.com/tmcw)). - * Added `TileLayer` `noWrap` option to disable wrapping `x` tile coordinate (by [@jasondavies](https://github.com/jasondavies)). - * Added `opacity` option and `setOpacity` method to `TileLayer`. - * Added `setLatLng` and `setIcon` methods to `Marker`. - * Added `title` option to `Marker`. - * Added `maxZoom` argument to `map.locateAndSetView` method. - * Added ability to pass Geolocation options to map `locate` and `locateAndSetView` methods (by [@JasonSanford](https://github.com/JasonSanford)). - * Improved `Popup` to accept HTML elements in addition to strings as its content. - -#### Development workflow improvements - - * Added `Makefile` for building `leaflet.js` on non-Windows machines (by [@tmcw](https://github.com/tmcw)). - * Improved `debug/leaflet-include.js` script to allow using it outside of `debug` folder (by [@antonj](https://github.com/antonj)). - * Improved `L` definition to be compatible with CommonJS. [#122](https://github.com/Leaflet/Leaflet/issues/122) - -### Bug fixes - -#### General bugfixes - - * Fixed a bug where zooming is broken if the map contains a polygon and you zoom to an area where it's not visible. [#47](https://github.com/Leaflet/Leaflet/issues/47) - * Fixed a bug where closed polylines would not appear on the map. - * Fixed a bug where marker that was added, removed and then added again would not appear on the map. [#66](https://github.com/Leaflet/Leaflet/issues/66) - * Fixed a bug where tile layer that was added, removed and then added again would not appear on the map. - * Fixed a bug where some tiles would not load when panning across the date line. [#97](https://github.com/Leaflet/Leaflet/issues/97) - * Fixed a bug where map div with `position: absolute` is reset to `relative`. [#100](https://github.com/Leaflet/Leaflet/issues/100) - * Fixed a bug that caused an error when trying to add a marker without shadow in its icon. - * Fixed a bug where popup content would not update on `setContent` call. [#94](https://github.com/Leaflet/Leaflet/issues/94) - * Fixed a bug where double click zoom wouldn't work if popup is opened on map click - * Fixed a bug with click propagation on popup close button. [#99](https://github.com/Leaflet/Leaflet/issues/99) - * Fixed inability to remove ImageOverlay layer. - -#### Browser bugfixes - - * Fixed a bug where paths would not appear in IE8. - * Fixed a bug where there were occasional slowdowns before zoom animation in WebKit. [#123](https://github.com/Leaflet/Leaflet/issues/123) - * Fixed incorrect zoom animation & popup styling in Opera 11.11. - * Fixed popup fade animation in Firefox and Opera. - * Fixed a bug where map isn't displayed in Firefox when there's an `img { max-width: 100% }` rule. - -#### Mobile browsers bugfixes - - * Fixed a bug that prevented panning on some Android 2.1 (and possibly older) devices. [#84](https://github.com/Leaflet/Leaflet/issues/84) - * Disabled zoom animation on Android by default because it's buggy on some devices (will be enabled back when it's stable enough). [#32](https://github.com/Leaflet/Leaflet/issues/32) - * Fixed a bug where map would occasionally break while multi-touch-zooming on iOS. [#32](https://github.com/Leaflet/Leaflet/issues/32) - * Fixed a bug that prevented panning/clicking on Android 3 tablets. [#121](https://github.com/Leaflet/Leaflet/issues/121) - * Fixed a bug that prevented panning/clicking on Opera Mobile. [#138](https://github.com/Leaflet/Leaflet/issues/138) - * Fixed potentional memory leak on WebKit when removing tiles, thanks to [@Scalar4eg](https://github.com/Scalar4eg). [#107](https://github.com/Leaflet/Leaflet/issues/107) - -## 0.1 (2011-05-13) - -Initial Leaflet release. diff --git a/public/assets/vendor/leaflet/CONTRIBUTING.md b/public/assets/vendor/leaflet/CONTRIBUTING.md deleted file mode 100644 index 75f43764..00000000 --- a/public/assets/vendor/leaflet/CONTRIBUTING.md +++ /dev/null @@ -1,210 +0,0 @@ -Contributing to Leaflet -======================= - - 1. [Getting Involved](#getting-involved) - 2. [Reporting Bugs](#reporting-bugs) - 3. [Contributing Code](#contributing-code) - 4. [Running the Tests](#running-the-tests) - 5. [Code Coverage](#code-coverage) - 6. [Improving Documentation](#improving-documentation) - 7. [Code of Conduct](#code-of-conduct) - 8. [Thank You](#thank-you) - -## Getting Involved - -Third-party patches are absolutely essential on our quest to create the best mapping library that will ever exist. -However, they're not the only way to get involved with Leaflet development. -You can help the project tremendously by discovering and [reporting bugs](#reporting-bugs); -[improving documentation](#improving-documentation); -helping others on [Stack Overflow](https://stackoverflow.com/questions/tagged/leaflet), -[GIS Stack Exchange](https://gis.stackexchange.com/questions/tagged/leaflet) -and [GitHub issues](https://github.com/Leaflet/Leaflet/issues); -showing your support for your favorite feature suggestions on [Leaflet UserVoice page](http://leaflet.uservoice.com); -tweeting to [@LeafletJS](http://twitter.com/LeafletJS); -and spreading the word about Leaflet among your colleagues and friends. - -## Reporting Bugs - -Before reporting a bug on the project's [issues page](https://github.com/Leaflet/Leaflet/issues), -first make sure that your issue is caused by Leaflet, not your application code -(e.g. passing incorrect arguments to methods, etc.). -Second, search the already reported issues for similar cases, -and if it's already reported, just add any additional details in the comments. - -After you've made sure that you've found a new Leaflet bug, -here are some tips for creating a helpful report that will make fixing it much easier and quicker: - - * Write a **descriptive, specific title**. Bad: *Problem with polylines*. Good: *Doing X in IE9 causes Z*. - * Include **browser, OS and Leaflet version** info in the description. - * Create a **simple test case** that demonstrates the bug (e.g. using [Leaflet playground](http://playground-leaflet.rhcloud.com/)). - * Check whether the bug can be reproduced in **other browsers**. - * Check if the bug occurs in the stable version, master, or both. - * *Bonus tip:* if the bug only appears in the master version but the stable version is fine, - use `git bisect` to find the exact commit that introduced the bug. - -If you just want some help with your project, -try asking on [Stack Overflow](https://stackoverflow.com/questions/tagged/leaflet) -or [GIS Stack Exchange](https://gis.stackexchange.com/questions/tagged/leaflet) instead. - -## Contributing Code - -### Considerations for Accepting Patches - -While we happily accept patches, we're also committed to keeping Leaflet simple, lightweight and blazingly fast. -So bugfixes, performance optimizations and small improvements that don't add a lot of code -are much more likely to get accepted quickly. - -Before sending a pull request with a new feature, check if it's been discussed before already -(either on [GitHub issues](https://github.com/Leaflet/Leaflet/issues) -or [Leaflet UserVoice](http://leaflet.uservoice.com/)), -and ask yourself two questions: - - 1. Are you sure that this new feature is important enough to justify its presence in the Leaflet core? - Or will it look better as a plugin in a separate repository? - 2. Is it written in a simple, concise way that doesn't add bulk to the codebase? - -If your feature or API improvement did get merged into master, -please consider submitting another pull request with the corresponding [documentation update](#improving-documentation). - -### Setting up the Build System - -The Leaflet build system uses [Node](http://nodejs.org/), and the [Jake](http://jakejs.com/) Javascript build tool. -To set up the Leaflet build system, install Node then run the following commands in the project root to install Jake: - -``` -npm install -g jake -npm install -``` -or, if you prefer [`yarn`](https://yarnpkg.com/) over `npm`: -``` -yarn global add jake -yarn install -``` - -### Making Changes to Leaflet Source - -If you're not yet familiar with the way GitHub works (forking, pull requests, etc.), -be sure to check out the awesome [article about forking](https://help.github.com/articles/fork-a-repo) -on the GitHub Help website — it will get you started quickly. - -You should always write each batch of changes (feature, bugfix, etc.) in **its own topic branch**. -Please do not commit to the `master` branch, or your unrelated changes will go into the same pull request. - -You should also follow the code style and whitespace conventions of the original codebase. -In particular, use tabs for indentation and spaces for alignment. - -Before committing your changes, run `jake lint` to catch any JS errors in the code and fix them. -If you add any new files to the Leaflet source, make sure to also add them to `build/deps.js` -so that the build system knows about them. - -Also, please make sure that you have [line endings configured properly](https://help.github.com/articles/dealing-with-line-endings) in Git! Otherwise the diff will show that all lines of a file were changed even if you touched only one. - -Happy coding! - -### Using RollupJS - -The source javascript code for Leaflet is a few dozen files, in the `src/` directory. -But normally, Leaflet is loaded in a web browser as just one javascript file. - -In order to create this file, run `npm run-script rollup` or `yarn run rollup`. - -You'll find `dist/leaflet-src.js` and `dist/leaflet.js`. The difference is that -`dist/leaflet-src.js` has sourcemaps and it's not uglified, so it's better for -development. `dist/leaflet.js` is uglified and thus is smaller, so it's better -for deployment. - -When developing (or bugfixing) core Leaflet functionalities, it's common to use -the webpages in the `debug/` directory, and run the unit tests (`spec/index.html`) -in a graphical browser. This requires regenerating the bundled files quickly. - -In order to do so, run `npm run-script watch` or `yarn run rollup`. This will keep -on rebuilding the bundles whenever any source file changes. - -## Running the Tests - -To run the tests from the command line, -install [PhantomJS](http://phantomjs.org/) (and make sure it's in your `PATH`), -then run: - -``` -jake test -``` - -To run all the tests in actual browsers at the same time, you can do: - -``` -jake test --ff --chrome --safari --ie -``` - -To run the tests in a browser manually, open `spec/index.html`. - -## Code Coverage - -To generate a detailed report about test coverage (which helps tremendously when working on test improvements), run: - -``` -jake test --cov -``` - -After that, open `coverage//index.html` in a browser to see the report. -From there you can click through folders/files to get details on their individual coverage. - -## Improving Documentation - -The code of the live Leaflet website that contains all documentation and examples is located in the `docs/` directory of the `master` branch -and is automatically generated from a set of HTML and Markdown files by [Jekyll](http://jekyllrb.com/). - -The easiest way to make little improvements such as fixing typos without even leaving the browser -is by editing one of the files with the online GitHub editor: -browse the [`docs/ directory`](https://github.com/Leaflet/Leaflet/tree/master/docs), -choose a certain file for editing (e.g. `plugins.md` for the list of Leaflet plugins), -click the Edit button, make changes and follow instructions from there. -Once it gets merged, the changes will immediately appear on the website. - -If you need to make edits in a local repository to see how it looks in the process, do the following: - - 1. [Install Ruby](http://www.ruby-lang.org/en/) if don't have it yet. - 2. Run `gem install jekyll`. - 3. Enter the directory where you cloned the Leaflet repository - 4. Make sure you are in the `master` branch by running `git checkout master` - 5. Enter the documentation subdirectory by running `cd docs` - 6. Run `jekyll serve --watch`. - 7. Open `localhost:4000` in your web browser. - -Now any file changes will be updated when you reload pages automatically. -After committing the changes, just send a pull request. - -### API documentation - -Since Leaflet 1.0.0-rc1, the API documentation in `reference-1.0.0.html` is handled -via [Leafdoc](https://github.com/Leaflet/Leafdoc). This means that next to the -code for every method, option or property there is a special code comment documenting -that feature. In order to edit the API documentation, just edit these comments in the -source code. - -In order to generate the documentation, make sure that the development dependencies -are installed (run either `npm install` or `yarn install`), then just run - -``` -jake docs -``` - -and you'll find a `.html` file in the `dist/` directory. - -On every release of a new Leaflet version, this file will be generated and copied -over to `docs/reference.html` - there is no need to send pull requests with changes to this file to update the API documentation. - -## Code of Conduct - -Everyone is invited to participate in the Leaflet community and related projects: -we want to create a welcoming and friendly environment. -Harassment of participants or other unethical and unprofessional behavior will not be tolerated in our spaces. -The [Contributor Covenant](http://contributor-covenant.org/version/1/3/0/) -applies to all projects under the Leaflet organization. -Report any issues to agafonkin@gmail.com. - -## Thank You - -Not only does your contribution to Leaflet and its community earn our gratitude, but it also makes you AWESOME. -Join [this approved list of awesome people](https://github.com/Leaflet/Leaflet/graphs/contributors) -and help us push the limits of what's possible with online maps! diff --git a/public/assets/vendor/leaflet/ISSUE_TEMPLATE.md b/public/assets/vendor/leaflet/ISSUE_TEMPLATE.md deleted file mode 100644 index c6942e53..00000000 --- a/public/assets/vendor/leaflet/ISSUE_TEMPLATE.md +++ /dev/null @@ -1,25 +0,0 @@ - - -## How to reproduce - -- Leaflet version I'm using: -- Browser (with version) I'm using: -- OS/Platform (with version) I'm using: -- step 1 -- step 2 - -## What behaviour I'm expecting and which behaviour I'm seeing - -## Minimal example reproducing the issue - -- [ ] this example is as simple as possible -- [ ] this example does not rely on any third party code - -Using http://playground-leaflet.rhcloud.com/ or any other jsfiddle-like site. diff --git a/public/assets/vendor/leaflet/Jakefile.js b/public/assets/vendor/leaflet/Jakefile.js deleted file mode 100644 index c71a7413..00000000 --- a/public/assets/vendor/leaflet/Jakefile.js +++ /dev/null @@ -1,107 +0,0 @@ -/* -Leaflet building, testing and linting scripts. - -To use, install Node, then run the following commands in the project root: - - npm install -g jake - npm install - -To check the code for errors and build Leaflet from source, run "jake". -To run the tests, run "jake test". To build the documentation, run "jake docs". - -For a custom build, open build/build.html in the browser and follow the instructions. -*/ - -var buildDocs = require('./build/docs'), - git = require('git-rev-sync'), - path = require('path'); - -function hint(msg, args) { - return function () { - console.log(msg); - jake.exec('node node_modules/eslint/bin/eslint.js ' + args, - {printStdout: true}, function () { - console.log('\tCheck passed.\n'); - complete(); - }); - }; -} - -// Returns the version string in package.json, plus a semver build metadata if -// this is not an official release -function calculateVersion(officialRelease) { - - var version = require('./package.json').version; - - if (officialRelease) { - return version; - } else { - return version + '+' + git.short(); - } -} - -desc('Check Leaflet source for errors with ESLint'); -task('lint', {async: true}, hint('Checking for JS errors...', 'src')); - -desc('Check Leaflet specs source for errors with ESLint'); -task('lintspec', {async: true}, hint('Checking for specs JS errors...', 'spec/suites')); - -desc('Run PhantomJS tests'); -task('test', ['lint', 'lintspec'], {async: true}, function () { - - var karma = require('karma'), - testConfig = {configFile : path.join(__dirname, './spec/karma.conf.js')}; - - testConfig.browsers = ['PhantomJSCustom']; - - function isArgv(optName) { - return process.argv.indexOf(optName) !== -1; - } - - if (isArgv('--chrome')) { - testConfig.browsers.push('Chrome'); - } - if (isArgv('--safari')) { - testConfig.browsers.push('Safari'); - } - if (isArgv('--ff')) { - testConfig.browsers.push('Firefox'); - } - if (isArgv('--ie')) { - testConfig.browsers.push('IE'); - } - - if (isArgv('--cov')) { - testConfig.preprocessors = { - 'src/**/*.js': 'coverage' - }; - testConfig.coverageReporter = { - type : 'html', - dir : 'coverage/' - }; - testConfig.reporters = ['coverage']; - } - - console.log('Running tests...'); - - var server = new karma.Server(testConfig, function(exitCode) { - if (!exitCode) { - console.log('\tTests ran successfully.\n'); - complete(); - } else { - process.exit(exitCode); - } - }); - server.start(); -}); - -desc('Build documentation'); -task('docs', {}, function() { - buildDocs(); -}); - -task('default', ['test', 'build']); - -jake.addListener('complete', function () { - process.exit(); -}); diff --git a/public/assets/vendor/leaflet/LICENSE b/public/assets/vendor/leaflet/LICENSE deleted file mode 100644 index bcae3163..00000000 --- a/public/assets/vendor/leaflet/LICENSE +++ /dev/null @@ -1,23 +0,0 @@ -Copyright (c) 2010-2016, Vladimir Agafonkin -Copyright (c) 2010-2011, CloudMade -All rights reserved. - -Redistribution and use in source and binary forms, with or without modification, are -permitted provided that the following conditions are met: - - 1. Redistributions of source code must retain the above copyright notice, this list of - conditions and the following disclaimer. - - 2. Redistributions in binary form must reproduce the above copyright notice, this list - of conditions and the following disclaimer in the documentation and/or other materials - provided with the distribution. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY -EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE -COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, -EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR -TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/public/assets/vendor/leaflet/PLUGIN-GUIDE.md b/public/assets/vendor/leaflet/PLUGIN-GUIDE.md deleted file mode 100644 index dec6db05..00000000 --- a/public/assets/vendor/leaflet/PLUGIN-GUIDE.md +++ /dev/null @@ -1,221 +0,0 @@ -# Leaflet Plugin Authoring Guide - -One of the greatest things about Leaflet is its powerful plugin ecosystem. -The [Leaflet plugins page](http://leafletjs.com/plugins.html) lists dozens of awesome plugins, and more are being added every week. - -This guide lists a number of best practices for publishing a Leaflet plugin that meets the quality standards of Leaflet itself. - -1. [Presentation](#presentation) - - [Repository](#repository) - - [Name](#name) - - [Demo](#demo) - - [Readme](#readme) - - [License](#license) -2. [Code](#code) - - [File Structure](#file-structure) - - [Code Conventions](#code-conventions) - - [Plugin API](#plugin-api) -3. [Publishing on NPM](#publishing-on-npm) -4. [Module Loaders](#module-loaders) -5. [Adding to the plugins list](#adding-to-the-plugins-list) - -## Presentation - -### Repository - -The best place to put your Leaflet plugin to is a separate [GitHub](http://github.com) repository. -If you create a collection of plugins for different uses, -don't put them in one repo — -it's usually easier to work with small, self-contained plugins in individual repositories. - -### Name - -Most existing plugins follow the convention of naming plugins (and repos) like this: `Leaflet.MyPluginName`. -You can use other forms (e.g. "leaflet-my-plugin-name"), -just make sure to include the word "Leaflet" in the name so that it's obvious that it's a Leaflet plugin. - -### Demo - -The most essential thing to do when publishing a plugin is to include a demo that showcases what the plugin does — -it's usually the first thing people will look for. - -The easiest way to put up a demo is using [GitHub Pages](http://pages.github.com/). -A good [starting point](https://help.github.com/articles/creating-project-pages-manually) is creating a `gh-pages` branch in your repo and adding an `index.html` page to it — -after pushing, it'll be published as `http://.github.io/`. - -### Readme - -The next thing you need to have is a [good `README.md`](https://github.com/noffle/art-of-readme) in the root of the repo (or a link to a website with a similar content). -At a minimum it should contain the following items: - -- name of the plugin -- a simple, concise description of what it does -- requirements - - Leaflet version - - other external dependencies (if any) - - browser / device compatibility -- links to demos -- instructions for including the plugin -- simple usage code example -- API reference (methods, options, events) - -### License - -Every open source repository should include a license. -If you don't know what open source license to choose for your code, -[MIT License](http://opensource.org/licenses/MIT) and [BSD 2-Clause License](http://opensource.org/licenses/BSD-2-Clause) are both good choices. -You can either put it in the repo as a `LICENSE` file or just link to the license from the Readme. - -## Code - -### File Structure - -Keep the file structure clean and simple, -don't pile up lots of files in one place — -make it easy for a new person to find their way in your repo. - -A barebones repo for a simple plugin would look like this: - -``` -my-plugin.js -README.md -``` - -An example of a more sophisticated plugin file structure: - -``` -/src - JS source files -/dist - minified plugin JS, CSS, images -/spec - test files -/lib - any external libraries/plugins if necessary -/examples - HTML examples of plugin usage -README.md -LICENSE -package.json -``` - -### Code Conventions - -Everyone's tastes are different, but it's important to be consistent with whatever conventions you choose for your plugin. - -For a good starting point, check out [Airbnb JavaScript Guide](https://github.com/airbnb/javascript). -Leaflet follows pretty much the same conventions -except for using smart tabs (hard tabs for indentation, spaces for alignment) -and putting a space after the `function` keyword. - -### Plugin API - -Never expose global variables in your plugin.
-If you have a new class, put it directly in the `L` namespace (`L.MyPlugin`).
-If you inherit one of the existing classes, make it a sub-property (`L.TileLayer.Banana`).
-Every class should have a factory function in camelCase, e.g. (`L.tileLayer.banana`).
-If you want to add new methods to existing Leaflet classes, you can do it like this: `L.Marker.include({myPlugin: …})`. - -Function, method, property and factory names should be in `camelCase`.
-Class names should be in `CapitalizedCamelCase`. - -If you have a lot of arguments in your function, consider accepting an options object instead -(putting default values where possible so that users don't need to specify all of them): - -```js -// bad -marker.myPlugin('bla', 'foo', null, {}, 5, 0); - - // good -marker.myPlugin('bla', { - optionOne: 'foo', - optionThree: 5 -}); -``` - -And most importantly, keep it simple. Leaflet is all about *simplicity*. - -## Publishing on NPM - -NPM (Node Packaged Modules) is a package manager and code repository for JavaScript. Publishing your module on NPM allows other developers to quickly find and install your plugin as well as any other plugins it depends on. - -NPM has an excellent [developers guide](https://www.npmjs.org/doc/misc/npm-developers.html) to help you through the process. - -When you publish your plugin you should add a dependency on `leaflet` to your `package.json` file. This will automatically install Leaflet when your package is installed. - -Here is an example of a `package.json` file for a Leaflet plugin. - -```json -{ - "name": "my-leaflet-plugin", - "version": "1.0.0", - "description": "A simple leaflet plugin.", - "main": "my-plugin.js", - "author": "You", - "license": "IST", - "peerDependencies": { - "leaflet": "^1.0.0" - } -} -``` - -If possible, do not commit your minified files (e.g. `dist`) to a repo; this can -lead to confussion when trying to debug the wrong file. Instead, use `npm` to -trigger a build/minification just before publishing your package with a -[`prepublish` script](https://docs.npmjs.com/misc/scripts#common-uses), for example: - -```json -{ - "name": "my-leaflet-plugin", - ... - "scripts": { - "prepublish": "grunt build" - } -} -``` - -You can then use the [`.gitignore`](https://help.github.com/articles/ignoring-files/) -file to make sure the minified files are not versioned, and an -[empty `.npmignore`](https://docs.npmjs.com/misc/developers#keeping-files-out-of-your-package) -to ensure that they are published to NPM. - -## Module Loaders - -Module loaders such as [RequireJS](http://requirejs.org/) and [Browserify](http://browserify.org/) implement module systems like AMD (Asynchronous Module Definition) and CommonJS to allow developers to modularize and load their code. - -You can add support for AMD/CommonJS loaders to your Leaflet plugin by following this pattern based on the [Universal Module Definition](https://github.com/umdjs/umd/blob/master/templates/returnExportsGlobal.js) - -```js -(function (factory, window) { - - // define an AMD module that relies on 'leaflet' - if (typeof define === 'function' && define.amd) { - define(['leaflet'], factory); - - // define a Common JS module that relies on 'leaflet' - } else if (typeof exports === 'object') { - module.exports = factory(require('leaflet')); - } - - // attach your plugin to the global 'L' variable - if (typeof window !== 'undefined' && window.L) { - window.L.YourPlugin = factory(L); - } -}(function (L) { - var MyLeafletPlugin = {}; - // implement your plugin - - // return your plugin when you are done - return MyLeafletPlugin; -}, window)); -``` - -Now your plugin is available as an AMD and CommonJS module and can be used in module loaders like Browserify and RequireJS. - - -## Adding to the plugins list - -Once your plugin is published, it is a good idea to add it to the [Leaflet plugins list](http://leafletjs.com/plugins.html). To do so: - -* [Fork](https://help.github.com/articles/fork-a-repo/) the Leaflet repo. -* In the `docs/plugins.md` file, find the section your plugin should go in, and add a table row with information and links about your plugin. -* Commit the code to your fork. -* [Open a pull request](https://help.github.com/articles/creating-a-pull-request/) from your fork to Leaflet's original repo. - -Once the pull request is done, a Leaflet maintainer will have a quick look at your -plugin and, if everything looks right, your plugin will appear in the list shortly thereafter. diff --git a/public/assets/vendor/leaflet/README.md b/public/assets/vendor/leaflet/README.md deleted file mode 100644 index a49b5b57..00000000 --- a/public/assets/vendor/leaflet/README.md +++ /dev/null @@ -1,32 +0,0 @@ -Leaflet - -Leaflet is the leading open-source JavaScript library for **mobile-friendly interactive maps**. -Weighing just about 37 KB of gzipped JS code, it has all the mapping [features][] most developers ever need. - -Leaflet is designed with *simplicity*, *performance* and *usability* in mind. -It works efficiently across all major desktop and mobile platforms out of the box, -taking advantage of HTML5 and CSS3 on modern browsers while being accessible on older ones too. -It can be extended with a huge amount of [plugins][], -has a beautiful, easy to use and [well-documented][] API -and a simple, readable [source code][] that is a joy to [contribute][] to. - -For more info, docs and tutorials, check out the [official website][].
-For **Leaflet downloads** (including the built master version), check out the [download page][]. - -We're happy to meet new contributors. -If you want to **get involved** with Leaflet development, check out the [contribution guide][contribute]. -Let's make the best mapping library that will ever exist, -and push the limits of what's possible with online maps! - -[![Build Status](https://travis-ci.org/Leaflet/Leaflet.svg?branch=master)](https://travis-ci.org/Leaflet/Leaflet) - - [contributors]: https://github.com/Leaflet/Leaflet/graphs/contributors - [features]: http://leafletjs.com/#features - [plugins]: http://leafletjs.com/plugins.html - [well-documented]: http://leafletjs.com/reference.html "Leaflet API reference" - [source code]: https://github.com/Leaflet/Leaflet "Leaflet GitHub repository" - [hosted on GitHub]: http://github.com/Leaflet/Leaflet - [contribute]: https://github.com/Leaflet/Leaflet/blob/master/CONTRIBUTING.md "A guide to contributing to Leaflet" - [official website]: http://leafletjs.com - [download page]: http://leafletjs.com/download.html - diff --git a/public/assets/vendor/leaflet/bower.json b/public/assets/vendor/leaflet/bower.json deleted file mode 100644 index 6b424959..00000000 --- a/public/assets/vendor/leaflet/bower.json +++ /dev/null @@ -1,18 +0,0 @@ -{ - "name": "leaflet", - "description": "JavaScript library for mobile-friendly interactive maps", - "license": "BSD-2-Clause", - "main": [ - "dist/leaflet.css", - "dist/leaflet-src.js" - ], - "ignore": [ - ".*", - "CHANGELOG.json", - "FAQ.md", - "debug", - "spec", - "src", - "build" - ] -} diff --git a/public/assets/vendor/leaflet/dist/images/layers-2x.png b/public/assets/vendor/leaflet/dist/images/layers-2x.png deleted file mode 100644 index 200c333d..00000000 Binary files a/public/assets/vendor/leaflet/dist/images/layers-2x.png and /dev/null differ diff --git a/public/assets/vendor/leaflet/dist/images/layers.png b/public/assets/vendor/leaflet/dist/images/layers.png deleted file mode 100644 index 1a72e578..00000000 Binary files a/public/assets/vendor/leaflet/dist/images/layers.png and /dev/null differ diff --git a/public/assets/vendor/leaflet/dist/images/marker-icon-2x.png b/public/assets/vendor/leaflet/dist/images/marker-icon-2x.png deleted file mode 100644 index e4abba3b..00000000 Binary files a/public/assets/vendor/leaflet/dist/images/marker-icon-2x.png and /dev/null differ diff --git a/public/assets/vendor/leaflet/dist/images/marker-icon.png b/public/assets/vendor/leaflet/dist/images/marker-icon.png deleted file mode 100644 index 950edf24..00000000 Binary files a/public/assets/vendor/leaflet/dist/images/marker-icon.png and /dev/null differ diff --git a/public/assets/vendor/leaflet/dist/images/marker-shadow.png b/public/assets/vendor/leaflet/dist/images/marker-shadow.png deleted file mode 100644 index 9fd29795..00000000 Binary files a/public/assets/vendor/leaflet/dist/images/marker-shadow.png and /dev/null differ diff --git a/public/assets/vendor/leaflet/dist/leaflet-src.js b/public/assets/vendor/leaflet/dist/leaflet-src.js deleted file mode 100644 index 0f239b11..00000000 --- a/public/assets/vendor/leaflet/dist/leaflet-src.js +++ /dev/null @@ -1,13609 +0,0 @@ -/* @preserve - * Leaflet 1.2.0, a JS library for interactive maps. http://leafletjs.com - * (c) 2010-2017 Vladimir Agafonkin, (c) 2010-2011 CloudMade - */ -(function (global, factory) { - typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : - typeof define === 'function' && define.amd ? define(['exports'], factory) : - (factory((global.L = {}))); -}(this, (function (exports) { 'use strict'; - -var version = "1.2.0"; - -/* - * @namespace Util - * - * Various utility functions, used by Leaflet internally. - */ - -var freeze = Object.freeze; -Object.freeze = function (obj) { return obj; }; - -// @function extend(dest: Object, src?: Object): Object -// Merges the properties of the `src` object (or multiple objects) into `dest` object and returns the latter. Has an `L.extend` shortcut. -function extend(dest) { - var i, j, len, src; - - for (j = 1, len = arguments.length; j < len; j++) { - src = arguments[j]; - for (i in src) { - dest[i] = src[i]; - } - } - return dest; -} - -// @function create(proto: Object, properties?: Object): Object -// Compatibility polyfill for [Object.create](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create) -var create = Object.create || (function () { - function F() {} - return function (proto) { - F.prototype = proto; - return new F(); - }; -})(); - -// @function bind(fn: Function, …): Function -// Returns a new function bound to the arguments passed, like [Function.prototype.bind](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind). -// Has a `L.bind()` shortcut. -function bind(fn, obj) { - var slice = Array.prototype.slice; - - if (fn.bind) { - return fn.bind.apply(fn, slice.call(arguments, 1)); - } - - var args = slice.call(arguments, 2); - - return function () { - return fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments); - }; -} - -// @property lastId: Number -// Last unique ID used by [`stamp()`](#util-stamp) -var lastId = 0; - -// @function stamp(obj: Object): Number -// Returns the unique ID of an object, assiging it one if it doesn't have it. -function stamp(obj) { - /*eslint-disable */ - obj._leaflet_id = obj._leaflet_id || ++lastId; - return obj._leaflet_id; - /*eslint-enable */ -} - -// @function throttle(fn: Function, time: Number, context: Object): Function -// Returns a function which executes function `fn` with the given scope `context` -// (so that the `this` keyword refers to `context` inside `fn`'s code). The function -// `fn` will be called no more than one time per given amount of `time`. The arguments -// received by the bound function will be any arguments passed when binding the -// function, followed by any arguments passed when invoking the bound function. -// Has an `L.throttle` shortcut. -function throttle(fn, time, context) { - var lock, args, wrapperFn, later; - - later = function () { - // reset lock and call if queued - lock = false; - if (args) { - wrapperFn.apply(context, args); - args = false; - } - }; - - wrapperFn = function () { - if (lock) { - // called too soon, queue to call later - args = arguments; - - } else { - // call and lock until later - fn.apply(context, arguments); - setTimeout(later, time); - lock = true; - } - }; - - return wrapperFn; -} - -// @function wrapNum(num: Number, range: Number[], includeMax?: Boolean): Number -// Returns the number `num` modulo `range` in such a way so it lies within -// `range[0]` and `range[1]`. The returned value will be always smaller than -// `range[1]` unless `includeMax` is set to `true`. -function wrapNum(x, range, includeMax) { - var max = range[1], - min = range[0], - d = max - min; - return x === max && includeMax ? x : ((x - min) % d + d) % d + min; -} - -// @function falseFn(): Function -// Returns a function which always returns `false`. -function falseFn() { return false; } - -// @function formatNum(num: Number, digits?: Number): Number -// Returns the number `num` rounded to `digits` decimals, or to 5 decimals by default. -function formatNum(num, digits) { - var pow = Math.pow(10, digits || 5); - return Math.round(num * pow) / pow; -} - -// @function trim(str: String): String -// Compatibility polyfill for [String.prototype.trim](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Trim) -function trim(str) { - return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, ''); -} - -// @function splitWords(str: String): String[] -// Trims and splits the string on whitespace and returns the array of parts. -function splitWords(str) { - return trim(str).split(/\s+/); -} - -// @function setOptions(obj: Object, options: Object): Object -// Merges the given properties to the `options` of the `obj` object, returning the resulting options. See `Class options`. Has an `L.setOptions` shortcut. -function setOptions(obj, options) { - if (!obj.hasOwnProperty('options')) { - obj.options = obj.options ? create(obj.options) : {}; - } - for (var i in options) { - obj.options[i] = options[i]; - } - return obj.options; -} - -// @function getParamString(obj: Object, existingUrl?: String, uppercase?: Boolean): String -// Converts an object into a parameter URL string, e.g. `{a: "foo", b: "bar"}` -// translates to `'?a=foo&b=bar'`. If `existingUrl` is set, the parameters will -// be appended at the end. If `uppercase` is `true`, the parameter names will -// be uppercased (e.g. `'?A=foo&B=bar'`) -function getParamString(obj, existingUrl, uppercase) { - var params = []; - for (var i in obj) { - params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i])); - } - return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&'); -} - -var templateRe = /\{ *([\w_\-]+) *\}/g; - -// @function template(str: String, data: Object): String -// Simple templating facility, accepts a template string of the form `'Hello {a}, {b}'` -// and a data object like `{a: 'foo', b: 'bar'}`, returns evaluated string -// `('Hello foo, bar')`. You can also specify functions instead of strings for -// data values — they will be evaluated passing `data` as an argument. -function template(str, data) { - return str.replace(templateRe, function (str, key) { - var value = data[key]; - - if (value === undefined) { - throw new Error('No value provided for variable ' + str); - - } else if (typeof value === 'function') { - value = value(data); - } - return value; - }); -} - -// @function isArray(obj): Boolean -// Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray) -var isArray = Array.isArray || function (obj) { - return (Object.prototype.toString.call(obj) === '[object Array]'); -}; - -// @function indexOf(array: Array, el: Object): Number -// Compatibility polyfill for [Array.prototype.indexOf](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf) -function indexOf(array, el) { - for (var i = 0; i < array.length; i++) { - if (array[i] === el) { return i; } - } - return -1; -} - -// @property emptyImageUrl: String -// Data URI string containing a base64-encoded empty GIF image. -// Used as a hack to free memory from unused images on WebKit-powered -// mobile devices (by setting image `src` to this string). -var emptyImageUrl = 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='; - -// inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/ - -function getPrefixed(name) { - return window['webkit' + name] || window['moz' + name] || window['ms' + name]; -} - -var lastTime = 0; - -// fallback for IE 7-8 -function timeoutDefer(fn) { - var time = +new Date(), - timeToCall = Math.max(0, 16 - (time - lastTime)); - - lastTime = time + timeToCall; - return window.setTimeout(fn, timeToCall); -} - -var requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer; -var cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') || - getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); }; - -// @function requestAnimFrame(fn: Function, context?: Object, immediate?: Boolean): Number -// Schedules `fn` to be executed when the browser repaints. `fn` is bound to -// `context` if given. When `immediate` is set, `fn` is called immediately if -// the browser doesn't have native support for -// [`window.requestAnimationFrame`](https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame), -// otherwise it's delayed. Returns a request ID that can be used to cancel the request. -function requestAnimFrame(fn, context, immediate) { - if (immediate && requestFn === timeoutDefer) { - fn.call(context); - } else { - return requestFn.call(window, bind(fn, context)); - } -} - -// @function cancelAnimFrame(id: Number): undefined -// Cancels a previous `requestAnimFrame`. See also [window.cancelAnimationFrame](https://developer.mozilla.org/docs/Web/API/window/cancelAnimationFrame). -function cancelAnimFrame(id) { - if (id) { - cancelFn.call(window, id); - } -} - - -var Util = (Object.freeze || Object)({ - freeze: freeze, - extend: extend, - create: create, - bind: bind, - lastId: lastId, - stamp: stamp, - throttle: throttle, - wrapNum: wrapNum, - falseFn: falseFn, - formatNum: formatNum, - trim: trim, - splitWords: splitWords, - setOptions: setOptions, - getParamString: getParamString, - template: template, - isArray: isArray, - indexOf: indexOf, - emptyImageUrl: emptyImageUrl, - requestFn: requestFn, - cancelFn: cancelFn, - requestAnimFrame: requestAnimFrame, - cancelAnimFrame: cancelAnimFrame -}); - -// @class Class -// @aka L.Class - -// @section -// @uninheritable - -// Thanks to John Resig and Dean Edwards for inspiration! - -function Class() {} - -Class.extend = function (props) { - - // @function extend(props: Object): Function - // [Extends the current class](#class-inheritance) given the properties to be included. - // Returns a Javascript function that is a class constructor (to be called with `new`). - var NewClass = function () { - - // call the constructor - if (this.initialize) { - this.initialize.apply(this, arguments); - } - - // call all constructor hooks - this.callInitHooks(); - }; - - var parentProto = NewClass.__super__ = this.prototype; - - var proto = create(parentProto); - proto.constructor = NewClass; - - NewClass.prototype = proto; - - // inherit parent's statics - for (var i in this) { - if (this.hasOwnProperty(i) && i !== 'prototype' && i !== '__super__') { - NewClass[i] = this[i]; - } - } - - // mix static properties into the class - if (props.statics) { - extend(NewClass, props.statics); - delete props.statics; - } - - // mix includes into the prototype - if (props.includes) { - checkDeprecatedMixinEvents(props.includes); - extend.apply(null, [proto].concat(props.includes)); - delete props.includes; - } - - // merge options - if (proto.options) { - props.options = extend(create(proto.options), props.options); - } - - // mix given properties into the prototype - extend(proto, props); - - proto._initHooks = []; - - // add method for calling all hooks - proto.callInitHooks = function () { - - if (this._initHooksCalled) { return; } - - if (parentProto.callInitHooks) { - parentProto.callInitHooks.call(this); - } - - this._initHooksCalled = true; - - for (var i = 0, len = proto._initHooks.length; i < len; i++) { - proto._initHooks[i].call(this); - } - }; - - return NewClass; -}; - - -// @function include(properties: Object): this -// [Includes a mixin](#class-includes) into the current class. -Class.include = function (props) { - extend(this.prototype, props); - return this; -}; - -// @function mergeOptions(options: Object): this -// [Merges `options`](#class-options) into the defaults of the class. -Class.mergeOptions = function (options) { - extend(this.prototype.options, options); - return this; -}; - -// @function addInitHook(fn: Function): this -// Adds a [constructor hook](#class-constructor-hooks) to the class. -Class.addInitHook = function (fn) { // (Function) || (String, args...) - var args = Array.prototype.slice.call(arguments, 1); - - var init = typeof fn === 'function' ? fn : function () { - this[fn].apply(this, args); - }; - - this.prototype._initHooks = this.prototype._initHooks || []; - this.prototype._initHooks.push(init); - return this; -}; - -function checkDeprecatedMixinEvents(includes) { - if (!L || !L.Mixin) { return; } - - includes = isArray(includes) ? includes : [includes]; - - for (var i = 0; i < includes.length; i++) { - if (includes[i] === L.Mixin.Events) { - console.warn('Deprecated include of L.Mixin.Events: ' + - 'this property will be removed in future releases, ' + - 'please inherit from L.Evented instead.', new Error().stack); - } - } -} - -/* - * @class Evented - * @aka L.Evented - * @inherits Class - * - * A set of methods shared between event-powered classes (like `Map` and `Marker`). Generally, events allow you to execute some function when something happens with an object (e.g. the user clicks on the map, causing the map to fire `'click'` event). - * - * @example - * - * ```js - * map.on('click', function(e) { - * alert(e.latlng); - * } ); - * ``` - * - * Leaflet deals with event listeners by reference, so if you want to add a listener and then remove it, define it as a function: - * - * ```js - * function onClick(e) { ... } - * - * map.on('click', onClick); - * map.off('click', onClick); - * ``` - */ - -var Events = { - /* @method on(type: String, fn: Function, context?: Object): this - * Adds a listener function (`fn`) to a particular event type of the object. You can optionally specify the context of the listener (object the this keyword will point to). You can also pass several space-separated types (e.g. `'click dblclick'`). - * - * @alternative - * @method on(eventMap: Object): this - * Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}` - */ - on: function (types, fn, context) { - - // types can be a map of types/handlers - if (typeof types === 'object') { - for (var type in types) { - // we don't process space-separated events here for performance; - // it's a hot path since Layer uses the on(obj) syntax - this._on(type, types[type], fn); - } - - } else { - // types can be a string of space-separated words - types = splitWords(types); - - for (var i = 0, len = types.length; i < len; i++) { - this._on(types[i], fn, context); - } - } - - return this; - }, - - /* @method off(type: String, fn?: Function, context?: Object): this - * Removes a previously added listener function. If no function is specified, it will remove all the listeners of that particular event from the object. Note that if you passed a custom context to `on`, you must pass the same context to `off` in order to remove the listener. - * - * @alternative - * @method off(eventMap: Object): this - * Removes a set of type/listener pairs. - * - * @alternative - * @method off: this - * Removes all listeners to all events on the object. - */ - off: function (types, fn, context) { - - if (!types) { - // clear all listeners if called without arguments - delete this._events; - - } else if (typeof types === 'object') { - for (var type in types) { - this._off(type, types[type], fn); - } - - } else { - types = splitWords(types); - - for (var i = 0, len = types.length; i < len; i++) { - this._off(types[i], fn, context); - } - } - - return this; - }, - - // attach listener (without syntactic sugar now) - _on: function (type, fn, context) { - this._events = this._events || {}; - - /* get/init listeners for type */ - var typeListeners = this._events[type]; - if (!typeListeners) { - typeListeners = []; - this._events[type] = typeListeners; - } - - if (context === this) { - // Less memory footprint. - context = undefined; - } - var newListener = {fn: fn, ctx: context}, - listeners = typeListeners; - - // check if fn already there - for (var i = 0, len = listeners.length; i < len; i++) { - if (listeners[i].fn === fn && listeners[i].ctx === context) { - return; - } - } - - listeners.push(newListener); - }, - - _off: function (type, fn, context) { - var listeners, - i, - len; - - if (!this._events) { return; } - - listeners = this._events[type]; - - if (!listeners) { - return; - } - - if (!fn) { - // Set all removed listeners to noop so they are not called if remove happens in fire - for (i = 0, len = listeners.length; i < len; i++) { - listeners[i].fn = falseFn; - } - // clear all listeners for a type if function isn't specified - delete this._events[type]; - return; - } - - if (context === this) { - context = undefined; - } - - if (listeners) { - - // find fn and remove it - for (i = 0, len = listeners.length; i < len; i++) { - var l = listeners[i]; - if (l.ctx !== context) { continue; } - if (l.fn === fn) { - - // set the removed listener to noop so that's not called if remove happens in fire - l.fn = falseFn; - - if (this._firingCount) { - /* copy array in case events are being fired */ - this._events[type] = listeners = listeners.slice(); - } - listeners.splice(i, 1); - - return; - } - } - } - }, - - // @method fire(type: String, data?: Object, propagate?: Boolean): this - // Fires an event of the specified type. You can optionally provide an data - // object — the first argument of the listener function will contain its - // properties. The event can optionally be propagated to event parents. - fire: function (type, data, propagate) { - if (!this.listens(type, propagate)) { return this; } - - var event = extend({}, data, {type: type, target: this}); - - if (this._events) { - var listeners = this._events[type]; - - if (listeners) { - this._firingCount = (this._firingCount + 1) || 1; - for (var i = 0, len = listeners.length; i < len; i++) { - var l = listeners[i]; - l.fn.call(l.ctx || this, event); - } - - this._firingCount--; - } - } - - if (propagate) { - // propagate the event to parents (set with addEventParent) - this._propagateEvent(event); - } - - return this; - }, - - // @method listens(type: String): Boolean - // Returns `true` if a particular event type has any listeners attached to it. - listens: function (type, propagate) { - var listeners = this._events && this._events[type]; - if (listeners && listeners.length) { return true; } - - if (propagate) { - // also check parents for listeners if event propagates - for (var id in this._eventParents) { - if (this._eventParents[id].listens(type, propagate)) { return true; } - } - } - return false; - }, - - // @method once(…): this - // Behaves as [`on(…)`](#evented-on), except the listener will only get fired once and then removed. - once: function (types, fn, context) { - - if (typeof types === 'object') { - for (var type in types) { - this.once(type, types[type], fn); - } - return this; - } - - var handler = bind(function () { - this - .off(types, fn, context) - .off(types, handler, context); - }, this); - - // add a listener that's executed once and removed after that - return this - .on(types, fn, context) - .on(types, handler, context); - }, - - // @method addEventParent(obj: Evented): this - // Adds an event parent - an `Evented` that will receive propagated events - addEventParent: function (obj) { - this._eventParents = this._eventParents || {}; - this._eventParents[stamp(obj)] = obj; - return this; - }, - - // @method removeEventParent(obj: Evented): this - // Removes an event parent, so it will stop receiving propagated events - removeEventParent: function (obj) { - if (this._eventParents) { - delete this._eventParents[stamp(obj)]; - } - return this; - }, - - _propagateEvent: function (e) { - for (var id in this._eventParents) { - this._eventParents[id].fire(e.type, extend({layer: e.target}, e), true); - } - } -}; - -// aliases; we should ditch those eventually - -// @method addEventListener(…): this -// Alias to [`on(…)`](#evented-on) -Events.addEventListener = Events.on; - -// @method removeEventListener(…): this -// Alias to [`off(…)`](#evented-off) - -// @method clearAllEventListeners(…): this -// Alias to [`off()`](#evented-off) -Events.removeEventListener = Events.clearAllEventListeners = Events.off; - -// @method addOneTimeEventListener(…): this -// Alias to [`once(…)`](#evented-once) -Events.addOneTimeEventListener = Events.once; - -// @method fireEvent(…): this -// Alias to [`fire(…)`](#evented-fire) -Events.fireEvent = Events.fire; - -// @method hasEventListeners(…): Boolean -// Alias to [`listens(…)`](#evented-listens) -Events.hasEventListeners = Events.listens; - -var Evented = Class.extend(Events); - -/* - * @class Point - * @aka L.Point - * - * Represents a point with `x` and `y` coordinates in pixels. - * - * @example - * - * ```js - * var point = L.point(200, 300); - * ``` - * - * All Leaflet methods and options that accept `Point` objects also accept them in a simple Array form (unless noted otherwise), so these lines are equivalent: - * - * ```js - * map.panBy([200, 300]); - * map.panBy(L.point(200, 300)); - * ``` - */ - -function Point(x, y, round) { - // @property x: Number; The `x` coordinate of the point - this.x = (round ? Math.round(x) : x); - // @property y: Number; The `y` coordinate of the point - this.y = (round ? Math.round(y) : y); -} - -Point.prototype = { - - // @method clone(): Point - // Returns a copy of the current point. - clone: function () { - return new Point(this.x, this.y); - }, - - // @method add(otherPoint: Point): Point - // Returns the result of addition of the current and the given points. - add: function (point) { - // non-destructive, returns a new point - return this.clone()._add(toPoint(point)); - }, - - _add: function (point) { - // destructive, used directly for performance in situations where it's safe to modify existing point - this.x += point.x; - this.y += point.y; - return this; - }, - - // @method subtract(otherPoint: Point): Point - // Returns the result of subtraction of the given point from the current. - subtract: function (point) { - return this.clone()._subtract(toPoint(point)); - }, - - _subtract: function (point) { - this.x -= point.x; - this.y -= point.y; - return this; - }, - - // @method divideBy(num: Number): Point - // Returns the result of division of the current point by the given number. - divideBy: function (num) { - return this.clone()._divideBy(num); - }, - - _divideBy: function (num) { - this.x /= num; - this.y /= num; - return this; - }, - - // @method multiplyBy(num: Number): Point - // Returns the result of multiplication of the current point by the given number. - multiplyBy: function (num) { - return this.clone()._multiplyBy(num); - }, - - _multiplyBy: function (num) { - this.x *= num; - this.y *= num; - return this; - }, - - // @method scaleBy(scale: Point): Point - // Multiply each coordinate of the current point by each coordinate of - // `scale`. In linear algebra terms, multiply the point by the - // [scaling matrix](https://en.wikipedia.org/wiki/Scaling_%28geometry%29#Matrix_representation) - // defined by `scale`. - scaleBy: function (point) { - return new Point(this.x * point.x, this.y * point.y); - }, - - // @method unscaleBy(scale: Point): Point - // Inverse of `scaleBy`. Divide each coordinate of the current point by - // each coordinate of `scale`. - unscaleBy: function (point) { - return new Point(this.x / point.x, this.y / point.y); - }, - - // @method round(): Point - // Returns a copy of the current point with rounded coordinates. - round: function () { - return this.clone()._round(); - }, - - _round: function () { - this.x = Math.round(this.x); - this.y = Math.round(this.y); - return this; - }, - - // @method floor(): Point - // Returns a copy of the current point with floored coordinates (rounded down). - floor: function () { - return this.clone()._floor(); - }, - - _floor: function () { - this.x = Math.floor(this.x); - this.y = Math.floor(this.y); - return this; - }, - - // @method ceil(): Point - // Returns a copy of the current point with ceiled coordinates (rounded up). - ceil: function () { - return this.clone()._ceil(); - }, - - _ceil: function () { - this.x = Math.ceil(this.x); - this.y = Math.ceil(this.y); - return this; - }, - - // @method distanceTo(otherPoint: Point): Number - // Returns the cartesian distance between the current and the given points. - distanceTo: function (point) { - point = toPoint(point); - - var x = point.x - this.x, - y = point.y - this.y; - - return Math.sqrt(x * x + y * y); - }, - - // @method equals(otherPoint: Point): Boolean - // Returns `true` if the given point has the same coordinates. - equals: function (point) { - point = toPoint(point); - - return point.x === this.x && - point.y === this.y; - }, - - // @method contains(otherPoint: Point): Boolean - // Returns `true` if both coordinates of the given point are less than the corresponding current point coordinates (in absolute values). - contains: function (point) { - point = toPoint(point); - - return Math.abs(point.x) <= Math.abs(this.x) && - Math.abs(point.y) <= Math.abs(this.y); - }, - - // @method toString(): String - // Returns a string representation of the point for debugging purposes. - toString: function () { - return 'Point(' + - formatNum(this.x) + ', ' + - formatNum(this.y) + ')'; - } -}; - -// @factory L.point(x: Number, y: Number, round?: Boolean) -// Creates a Point object with the given `x` and `y` coordinates. If optional `round` is set to true, rounds the `x` and `y` values. - -// @alternative -// @factory L.point(coords: Number[]) -// Expects an array of the form `[x, y]` instead. - -// @alternative -// @factory L.point(coords: Object) -// Expects a plain object of the form `{x: Number, y: Number}` instead. -function toPoint(x, y, round) { - if (x instanceof Point) { - return x; - } - if (isArray(x)) { - return new Point(x[0], x[1]); - } - if (x === undefined || x === null) { - return x; - } - if (typeof x === 'object' && 'x' in x && 'y' in x) { - return new Point(x.x, x.y); - } - return new Point(x, y, round); -} - -/* - * @class Bounds - * @aka L.Bounds - * - * Represents a rectangular area in pixel coordinates. - * - * @example - * - * ```js - * var p1 = L.point(10, 10), - * p2 = L.point(40, 60), - * bounds = L.bounds(p1, p2); - * ``` - * - * All Leaflet methods that accept `Bounds` objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this: - * - * ```js - * otherBounds.intersects([[10, 10], [40, 60]]); - * ``` - */ - -function Bounds(a, b) { - if (!a) { return; } - - var points = b ? [a, b] : a; - - for (var i = 0, len = points.length; i < len; i++) { - this.extend(points[i]); - } -} - -Bounds.prototype = { - // @method extend(point: Point): this - // Extends the bounds to contain the given point. - extend: function (point) { // (Point) - point = toPoint(point); - - // @property min: Point - // The top left corner of the rectangle. - // @property max: Point - // The bottom right corner of the rectangle. - if (!this.min && !this.max) { - this.min = point.clone(); - this.max = point.clone(); - } else { - this.min.x = Math.min(point.x, this.min.x); - this.max.x = Math.max(point.x, this.max.x); - this.min.y = Math.min(point.y, this.min.y); - this.max.y = Math.max(point.y, this.max.y); - } - return this; - }, - - // @method getCenter(round?: Boolean): Point - // Returns the center point of the bounds. - getCenter: function (round) { - return new Point( - (this.min.x + this.max.x) / 2, - (this.min.y + this.max.y) / 2, round); - }, - - // @method getBottomLeft(): Point - // Returns the bottom-left point of the bounds. - getBottomLeft: function () { - return new Point(this.min.x, this.max.y); - }, - - // @method getTopRight(): Point - // Returns the top-right point of the bounds. - getTopRight: function () { // -> Point - return new Point(this.max.x, this.min.y); - }, - - // @method getTopLeft(): Point - // Returns the top-left point of the bounds (i.e. [`this.min`](#bounds-min)). - getTopLeft: function () { - return this.min; // left, top - }, - - // @method getBottomRight(): Point - // Returns the bottom-right point of the bounds (i.e. [`this.max`](#bounds-max)). - getBottomRight: function () { - return this.max; // right, bottom - }, - - // @method getSize(): Point - // Returns the size of the given bounds - getSize: function () { - return this.max.subtract(this.min); - }, - - // @method contains(otherBounds: Bounds): Boolean - // Returns `true` if the rectangle contains the given one. - // @alternative - // @method contains(point: Point): Boolean - // Returns `true` if the rectangle contains the given point. - contains: function (obj) { - var min, max; - - if (typeof obj[0] === 'number' || obj instanceof Point) { - obj = toPoint(obj); - } else { - obj = toBounds(obj); - } - - if (obj instanceof Bounds) { - min = obj.min; - max = obj.max; - } else { - min = max = obj; - } - - return (min.x >= this.min.x) && - (max.x <= this.max.x) && - (min.y >= this.min.y) && - (max.y <= this.max.y); - }, - - // @method intersects(otherBounds: Bounds): Boolean - // Returns `true` if the rectangle intersects the given bounds. Two bounds - // intersect if they have at least one point in common. - intersects: function (bounds) { // (Bounds) -> Boolean - bounds = toBounds(bounds); - - var min = this.min, - max = this.max, - min2 = bounds.min, - max2 = bounds.max, - xIntersects = (max2.x >= min.x) && (min2.x <= max.x), - yIntersects = (max2.y >= min.y) && (min2.y <= max.y); - - return xIntersects && yIntersects; - }, - - // @method overlaps(otherBounds: Bounds): Boolean - // Returns `true` if the rectangle overlaps the given bounds. Two bounds - // overlap if their intersection is an area. - overlaps: function (bounds) { // (Bounds) -> Boolean - bounds = toBounds(bounds); - - var min = this.min, - max = this.max, - min2 = bounds.min, - max2 = bounds.max, - xOverlaps = (max2.x > min.x) && (min2.x < max.x), - yOverlaps = (max2.y > min.y) && (min2.y < max.y); - - return xOverlaps && yOverlaps; - }, - - isValid: function () { - return !!(this.min && this.max); - } -}; - - -// @factory L.bounds(corner1: Point, corner2: Point) -// Creates a Bounds object from two corners coordinate pairs. -// @alternative -// @factory L.bounds(points: Point[]) -// Creates a Bounds object from the given array of points. -function toBounds(a, b) { - if (!a || a instanceof Bounds) { - return a; - } - return new Bounds(a, b); -} - -/* - * @class LatLngBounds - * @aka L.LatLngBounds - * - * Represents a rectangular geographical area on a map. - * - * @example - * - * ```js - * var corner1 = L.latLng(40.712, -74.227), - * corner2 = L.latLng(40.774, -74.125), - * bounds = L.latLngBounds(corner1, corner2); - * ``` - * - * All Leaflet methods that accept LatLngBounds objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this: - * - * ```js - * map.fitBounds([ - * [40.712, -74.227], - * [40.774, -74.125] - * ]); - * ``` - * - * Caution: if the area crosses the antimeridian (often confused with the International Date Line), you must specify corners _outside_ the [-180, 180] degrees longitude range. - */ - -function LatLngBounds(corner1, corner2) { // (LatLng, LatLng) or (LatLng[]) - if (!corner1) { return; } - - var latlngs = corner2 ? [corner1, corner2] : corner1; - - for (var i = 0, len = latlngs.length; i < len; i++) { - this.extend(latlngs[i]); - } -} - -LatLngBounds.prototype = { - - // @method extend(latlng: LatLng): this - // Extend the bounds to contain the given point - - // @alternative - // @method extend(otherBounds: LatLngBounds): this - // Extend the bounds to contain the given bounds - extend: function (obj) { - var sw = this._southWest, - ne = this._northEast, - sw2, ne2; - - if (obj instanceof LatLng) { - sw2 = obj; - ne2 = obj; - - } else if (obj instanceof LatLngBounds) { - sw2 = obj._southWest; - ne2 = obj._northEast; - - if (!sw2 || !ne2) { return this; } - - } else { - return obj ? this.extend(toLatLng(obj) || toLatLngBounds(obj)) : this; - } - - if (!sw && !ne) { - this._southWest = new LatLng(sw2.lat, sw2.lng); - this._northEast = new LatLng(ne2.lat, ne2.lng); - } else { - sw.lat = Math.min(sw2.lat, sw.lat); - sw.lng = Math.min(sw2.lng, sw.lng); - ne.lat = Math.max(ne2.lat, ne.lat); - ne.lng = Math.max(ne2.lng, ne.lng); - } - - return this; - }, - - // @method pad(bufferRatio: Number): LatLngBounds - // Returns bigger bounds created by extending the current bounds by a given percentage in each direction. - pad: function (bufferRatio) { - var sw = this._southWest, - ne = this._northEast, - heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio, - widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio; - - return new LatLngBounds( - new LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer), - new LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer)); - }, - - // @method getCenter(): LatLng - // Returns the center point of the bounds. - getCenter: function () { - return new LatLng( - (this._southWest.lat + this._northEast.lat) / 2, - (this._southWest.lng + this._northEast.lng) / 2); - }, - - // @method getSouthWest(): LatLng - // Returns the south-west point of the bounds. - getSouthWest: function () { - return this._southWest; - }, - - // @method getNorthEast(): LatLng - // Returns the north-east point of the bounds. - getNorthEast: function () { - return this._northEast; - }, - - // @method getNorthWest(): LatLng - // Returns the north-west point of the bounds. - getNorthWest: function () { - return new LatLng(this.getNorth(), this.getWest()); - }, - - // @method getSouthEast(): LatLng - // Returns the south-east point of the bounds. - getSouthEast: function () { - return new LatLng(this.getSouth(), this.getEast()); - }, - - // @method getWest(): Number - // Returns the west longitude of the bounds - getWest: function () { - return this._southWest.lng; - }, - - // @method getSouth(): Number - // Returns the south latitude of the bounds - getSouth: function () { - return this._southWest.lat; - }, - - // @method getEast(): Number - // Returns the east longitude of the bounds - getEast: function () { - return this._northEast.lng; - }, - - // @method getNorth(): Number - // Returns the north latitude of the bounds - getNorth: function () { - return this._northEast.lat; - }, - - // @method contains(otherBounds: LatLngBounds): Boolean - // Returns `true` if the rectangle contains the given one. - - // @alternative - // @method contains (latlng: LatLng): Boolean - // Returns `true` if the rectangle contains the given point. - contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean - if (typeof obj[0] === 'number' || obj instanceof LatLng || 'lat' in obj) { - obj = toLatLng(obj); - } else { - obj = toLatLngBounds(obj); - } - - var sw = this._southWest, - ne = this._northEast, - sw2, ne2; - - if (obj instanceof LatLngBounds) { - sw2 = obj.getSouthWest(); - ne2 = obj.getNorthEast(); - } else { - sw2 = ne2 = obj; - } - - return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) && - (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng); - }, - - // @method intersects(otherBounds: LatLngBounds): Boolean - // Returns `true` if the rectangle intersects the given bounds. Two bounds intersect if they have at least one point in common. - intersects: function (bounds) { - bounds = toLatLngBounds(bounds); - - var sw = this._southWest, - ne = this._northEast, - sw2 = bounds.getSouthWest(), - ne2 = bounds.getNorthEast(), - - latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat), - lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng); - - return latIntersects && lngIntersects; - }, - - // @method overlaps(otherBounds: Bounds): Boolean - // Returns `true` if the rectangle overlaps the given bounds. Two bounds overlap if their intersection is an area. - overlaps: function (bounds) { - bounds = toLatLngBounds(bounds); - - var sw = this._southWest, - ne = this._northEast, - sw2 = bounds.getSouthWest(), - ne2 = bounds.getNorthEast(), - - latOverlaps = (ne2.lat > sw.lat) && (sw2.lat < ne.lat), - lngOverlaps = (ne2.lng > sw.lng) && (sw2.lng < ne.lng); - - return latOverlaps && lngOverlaps; - }, - - // @method toBBoxString(): String - // Returns a string with bounding box coordinates in a 'southwest_lng,southwest_lat,northeast_lng,northeast_lat' format. Useful for sending requests to web services that return geo data. - toBBoxString: function () { - return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(','); - }, - - // @method equals(otherBounds: LatLngBounds, maxMargin?: Number): Boolean - // Returns `true` if the rectangle is equivalent (within a small margin of error) to the given bounds. The margin of error can be overriden by setting `maxMargin` to a small number. - equals: function (bounds, maxMargin) { - if (!bounds) { return false; } - - bounds = toLatLngBounds(bounds); - - return this._southWest.equals(bounds.getSouthWest(), maxMargin) && - this._northEast.equals(bounds.getNorthEast(), maxMargin); - }, - - // @method isValid(): Boolean - // Returns `true` if the bounds are properly initialized. - isValid: function () { - return !!(this._southWest && this._northEast); - } -}; - -// TODO International date line? - -// @factory L.latLngBounds(corner1: LatLng, corner2: LatLng) -// Creates a `LatLngBounds` object by defining two diagonally opposite corners of the rectangle. - -// @alternative -// @factory L.latLngBounds(latlngs: LatLng[]) -// Creates a `LatLngBounds` object defined by the geographical points it contains. Very useful for zooming the map to fit a particular set of locations with [`fitBounds`](#map-fitbounds). -function toLatLngBounds(a, b) { - if (a instanceof LatLngBounds) { - return a; - } - return new LatLngBounds(a, b); -} - -/* @class LatLng - * @aka L.LatLng - * - * Represents a geographical point with a certain latitude and longitude. - * - * @example - * - * ``` - * var latlng = L.latLng(50.5, 30.5); - * ``` - * - * All Leaflet methods that accept LatLng objects also accept them in a simple Array form and simple object form (unless noted otherwise), so these lines are equivalent: - * - * ``` - * map.panTo([50, 30]); - * map.panTo({lon: 30, lat: 50}); - * map.panTo({lat: 50, lng: 30}); - * map.panTo(L.latLng(50, 30)); - * ``` - */ - -function LatLng(lat, lng, alt) { - if (isNaN(lat) || isNaN(lng)) { - throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')'); - } - - // @property lat: Number - // Latitude in degrees - this.lat = +lat; - - // @property lng: Number - // Longitude in degrees - this.lng = +lng; - - // @property alt: Number - // Altitude in meters (optional) - if (alt !== undefined) { - this.alt = +alt; - } -} - -LatLng.prototype = { - // @method equals(otherLatLng: LatLng, maxMargin?: Number): Boolean - // Returns `true` if the given `LatLng` point is at the same position (within a small margin of error). The margin of error can be overriden by setting `maxMargin` to a small number. - equals: function (obj, maxMargin) { - if (!obj) { return false; } - - obj = toLatLng(obj); - - var margin = Math.max( - Math.abs(this.lat - obj.lat), - Math.abs(this.lng - obj.lng)); - - return margin <= (maxMargin === undefined ? 1.0E-9 : maxMargin); - }, - - // @method toString(): String - // Returns a string representation of the point (for debugging purposes). - toString: function (precision) { - return 'LatLng(' + - formatNum(this.lat, precision) + ', ' + - formatNum(this.lng, precision) + ')'; - }, - - // @method distanceTo(otherLatLng: LatLng): Number - // Returns the distance (in meters) to the given `LatLng` calculated using the [Haversine formula](http://en.wikipedia.org/wiki/Haversine_formula). - distanceTo: function (other) { - return Earth.distance(this, toLatLng(other)); - }, - - // @method wrap(): LatLng - // Returns a new `LatLng` object with the longitude wrapped so it's always between -180 and +180 degrees. - wrap: function () { - return Earth.wrapLatLng(this); - }, - - // @method toBounds(sizeInMeters: Number): LatLngBounds - // Returns a new `LatLngBounds` object in which each boundary is `sizeInMeters/2` meters apart from the `LatLng`. - toBounds: function (sizeInMeters) { - var latAccuracy = 180 * sizeInMeters / 40075017, - lngAccuracy = latAccuracy / Math.cos((Math.PI / 180) * this.lat); - - return toLatLngBounds( - [this.lat - latAccuracy, this.lng - lngAccuracy], - [this.lat + latAccuracy, this.lng + lngAccuracy]); - }, - - clone: function () { - return new LatLng(this.lat, this.lng, this.alt); - } -}; - - - -// @factory L.latLng(latitude: Number, longitude: Number, altitude?: Number): LatLng -// Creates an object representing a geographical point with the given latitude and longitude (and optionally altitude). - -// @alternative -// @factory L.latLng(coords: Array): LatLng -// Expects an array of the form `[Number, Number]` or `[Number, Number, Number]` instead. - -// @alternative -// @factory L.latLng(coords: Object): LatLng -// Expects an plain object of the form `{lat: Number, lng: Number}` or `{lat: Number, lng: Number, alt: Number}` instead. - -function toLatLng(a, b, c) { - if (a instanceof LatLng) { - return a; - } - if (isArray(a) && typeof a[0] !== 'object') { - if (a.length === 3) { - return new LatLng(a[0], a[1], a[2]); - } - if (a.length === 2) { - return new LatLng(a[0], a[1]); - } - return null; - } - if (a === undefined || a === null) { - return a; - } - if (typeof a === 'object' && 'lat' in a) { - return new LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt); - } - if (b === undefined) { - return null; - } - return new LatLng(a, b, c); -} - -/* - * @namespace CRS - * @crs L.CRS.Base - * Object that defines coordinate reference systems for projecting - * geographical points into pixel (screen) coordinates and back (and to - * coordinates in other units for [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services). See - * [spatial reference system](http://en.wikipedia.org/wiki/Coordinate_reference_system). - * - * Leaflet defines the most usual CRSs by default. If you want to use a - * CRS not defined by default, take a look at the - * [Proj4Leaflet](https://github.com/kartena/Proj4Leaflet) plugin. - */ - -var CRS = { - // @method latLngToPoint(latlng: LatLng, zoom: Number): Point - // Projects geographical coordinates into pixel coordinates for a given zoom. - latLngToPoint: function (latlng, zoom) { - var projectedPoint = this.projection.project(latlng), - scale = this.scale(zoom); - - return this.transformation._transform(projectedPoint, scale); - }, - - // @method pointToLatLng(point: Point, zoom: Number): LatLng - // The inverse of `latLngToPoint`. Projects pixel coordinates on a given - // zoom into geographical coordinates. - pointToLatLng: function (point, zoom) { - var scale = this.scale(zoom), - untransformedPoint = this.transformation.untransform(point, scale); - - return this.projection.unproject(untransformedPoint); - }, - - // @method project(latlng: LatLng): Point - // Projects geographical coordinates into coordinates in units accepted for - // this CRS (e.g. meters for EPSG:3857, for passing it to WMS services). - project: function (latlng) { - return this.projection.project(latlng); - }, - - // @method unproject(point: Point): LatLng - // Given a projected coordinate returns the corresponding LatLng. - // The inverse of `project`. - unproject: function (point) { - return this.projection.unproject(point); - }, - - // @method scale(zoom: Number): Number - // Returns the scale used when transforming projected coordinates into - // pixel coordinates for a particular zoom. For example, it returns - // `256 * 2^zoom` for Mercator-based CRS. - scale: function (zoom) { - return 256 * Math.pow(2, zoom); - }, - - // @method zoom(scale: Number): Number - // Inverse of `scale()`, returns the zoom level corresponding to a scale - // factor of `scale`. - zoom: function (scale) { - return Math.log(scale / 256) / Math.LN2; - }, - - // @method getProjectedBounds(zoom: Number): Bounds - // Returns the projection's bounds scaled and transformed for the provided `zoom`. - getProjectedBounds: function (zoom) { - if (this.infinite) { return null; } - - var b = this.projection.bounds, - s = this.scale(zoom), - min = this.transformation.transform(b.min, s), - max = this.transformation.transform(b.max, s); - - return new Bounds(min, max); - }, - - // @method distance(latlng1: LatLng, latlng2: LatLng): Number - // Returns the distance between two geographical coordinates. - - // @property code: String - // Standard code name of the CRS passed into WMS services (e.g. `'EPSG:3857'`) - // - // @property wrapLng: Number[] - // An array of two numbers defining whether the longitude (horizontal) coordinate - // axis wraps around a given range and how. Defaults to `[-180, 180]` in most - // geographical CRSs. If `undefined`, the longitude axis does not wrap around. - // - // @property wrapLat: Number[] - // Like `wrapLng`, but for the latitude (vertical) axis. - - // wrapLng: [min, max], - // wrapLat: [min, max], - - // @property infinite: Boolean - // If true, the coordinate space will be unbounded (infinite in both axes) - infinite: false, - - // @method wrapLatLng(latlng: LatLng): LatLng - // Returns a `LatLng` where lat and lng has been wrapped according to the - // CRS's `wrapLat` and `wrapLng` properties, if they are outside the CRS's bounds. - wrapLatLng: function (latlng) { - var lng = this.wrapLng ? wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng, - lat = this.wrapLat ? wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat, - alt = latlng.alt; - - return new LatLng(lat, lng, alt); - }, - - // @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds - // Returns a `LatLngBounds` with the same size as the given one, ensuring - // that its center is within the CRS's bounds. - // Only accepts actual `L.LatLngBounds` instances, not arrays. - wrapLatLngBounds: function (bounds) { - var center = bounds.getCenter(), - newCenter = this.wrapLatLng(center), - latShift = center.lat - newCenter.lat, - lngShift = center.lng - newCenter.lng; - - if (latShift === 0 && lngShift === 0) { - return bounds; - } - - var sw = bounds.getSouthWest(), - ne = bounds.getNorthEast(), - newSw = new LatLng(sw.lat - latShift, sw.lng - lngShift), - newNe = new LatLng(ne.lat - latShift, ne.lng - lngShift); - - return new LatLngBounds(newSw, newNe); - } -}; - -/* - * @namespace CRS - * @crs L.CRS.Earth - * - * Serves as the base for CRS that are global such that they cover the earth. - * Can only be used as the base for other CRS and cannot be used directly, - * since it does not have a `code`, `projection` or `transformation`. `distance()` returns - * meters. - */ - -var Earth = extend({}, CRS, { - wrapLng: [-180, 180], - - // Mean Earth Radius, as recommended for use by - // the International Union of Geodesy and Geophysics, - // see http://rosettacode.org/wiki/Haversine_formula - R: 6371000, - - // distance between two geographical points using spherical law of cosines approximation - distance: function (latlng1, latlng2) { - var rad = Math.PI / 180, - lat1 = latlng1.lat * rad, - lat2 = latlng2.lat * rad, - a = Math.sin(lat1) * Math.sin(lat2) + - Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad); - - return this.R * Math.acos(Math.min(a, 1)); - } -}); - -/* - * @namespace Projection - * @projection L.Projection.SphericalMercator - * - * Spherical Mercator projection — the most common projection for online maps, - * used by almost all free and commercial tile providers. Assumes that Earth is - * a sphere. Used by the `EPSG:3857` CRS. - */ - -var SphericalMercator = { - - R: 6378137, - MAX_LATITUDE: 85.0511287798, - - project: function (latlng) { - var d = Math.PI / 180, - max = this.MAX_LATITUDE, - lat = Math.max(Math.min(max, latlng.lat), -max), - sin = Math.sin(lat * d); - - return new Point( - this.R * latlng.lng * d, - this.R * Math.log((1 + sin) / (1 - sin)) / 2); - }, - - unproject: function (point) { - var d = 180 / Math.PI; - - return new LatLng( - (2 * Math.atan(Math.exp(point.y / this.R)) - (Math.PI / 2)) * d, - point.x * d / this.R); - }, - - bounds: (function () { - var d = 6378137 * Math.PI; - return new Bounds([-d, -d], [d, d]); - })() -}; - -/* - * @class Transformation - * @aka L.Transformation - * - * Represents an affine transformation: a set of coefficients `a`, `b`, `c`, `d` - * for transforming a point of a form `(x, y)` into `(a*x + b, c*y + d)` and doing - * the reverse. Used by Leaflet in its projections code. - * - * @example - * - * ```js - * var transformation = L.transformation(2, 5, -1, 10), - * p = L.point(1, 2), - * p2 = transformation.transform(p), // L.point(7, 8) - * p3 = transformation.untransform(p2); // L.point(1, 2) - * ``` - */ - - -// factory new L.Transformation(a: Number, b: Number, c: Number, d: Number) -// Creates a `Transformation` object with the given coefficients. -function Transformation(a, b, c, d) { - if (isArray(a)) { - // use array properties - this._a = a[0]; - this._b = a[1]; - this._c = a[2]; - this._d = a[3]; - return; - } - this._a = a; - this._b = b; - this._c = c; - this._d = d; -} - -Transformation.prototype = { - // @method transform(point: Point, scale?: Number): Point - // Returns a transformed point, optionally multiplied by the given scale. - // Only accepts actual `L.Point` instances, not arrays. - transform: function (point, scale) { // (Point, Number) -> Point - return this._transform(point.clone(), scale); - }, - - // destructive transform (faster) - _transform: function (point, scale) { - scale = scale || 1; - point.x = scale * (this._a * point.x + this._b); - point.y = scale * (this._c * point.y + this._d); - return point; - }, - - // @method untransform(point: Point, scale?: Number): Point - // Returns the reverse transformation of the given point, optionally divided - // by the given scale. Only accepts actual `L.Point` instances, not arrays. - untransform: function (point, scale) { - scale = scale || 1; - return new Point( - (point.x / scale - this._b) / this._a, - (point.y / scale - this._d) / this._c); - } -}; - -// factory L.transformation(a: Number, b: Number, c: Number, d: Number) - -// @factory L.transformation(a: Number, b: Number, c: Number, d: Number) -// Instantiates a Transformation object with the given coefficients. - -// @alternative -// @factory L.transformation(coefficients: Array): Transformation -// Expects an coeficients array of the form -// `[a: Number, b: Number, c: Number, d: Number]`. - -function toTransformation(a, b, c, d) { - return new Transformation(a, b, c, d); -} - -/* - * @namespace CRS - * @crs L.CRS.EPSG3857 - * - * The most common CRS for online maps, used by almost all free and commercial - * tile providers. Uses Spherical Mercator projection. Set in by default in - * Map's `crs` option. - */ - -var EPSG3857 = extend({}, Earth, { - code: 'EPSG:3857', - projection: SphericalMercator, - - transformation: (function () { - var scale = 0.5 / (Math.PI * SphericalMercator.R); - return toTransformation(scale, 0.5, -scale, 0.5); - }()) -}); - -var EPSG900913 = extend({}, EPSG3857, { - code: 'EPSG:900913' -}); - -// @namespace SVG; @section -// There are several static functions which can be called without instantiating L.SVG: - -// @function create(name: String): SVGElement -// Returns a instance of [SVGElement](https://developer.mozilla.org/docs/Web/API/SVGElement), -// corresponding to the class name passed. For example, using 'line' will return -// an instance of [SVGLineElement](https://developer.mozilla.org/docs/Web/API/SVGLineElement). -function svgCreate(name) { - return document.createElementNS('http://www.w3.org/2000/svg', name); -} - -// @function pointsToPath(rings: Point[], closed: Boolean): String -// Generates a SVG path string for multiple rings, with each ring turning -// into "M..L..L.." instructions -function pointsToPath(rings, closed) { - var str = '', - i, j, len, len2, points, p; - - for (i = 0, len = rings.length; i < len; i++) { - points = rings[i]; - - for (j = 0, len2 = points.length; j < len2; j++) { - p = points[j]; - str += (j ? 'L' : 'M') + p.x + ' ' + p.y; - } - - // closes the ring for polygons; "x" is VML syntax - str += closed ? (svg ? 'z' : 'x') : ''; - } - - // SVG complains about empty path strings - return str || 'M0 0'; -} - -/* - * @namespace Browser - * @aka L.Browser - * - * A namespace with static properties for browser/feature detection used by Leaflet internally. - * - * @example - * - * ```js - * if (L.Browser.ielt9) { - * alert('Upgrade your browser, dude!'); - * } - * ``` - */ - -var style$1 = document.documentElement.style; - -// @property ie: Boolean; `true` for all Internet Explorer versions (not Edge). -var ie = 'ActiveXObject' in window; - -// @property ielt9: Boolean; `true` for Internet Explorer versions less than 9. -var ielt9 = ie && !document.addEventListener; - -// @property edge: Boolean; `true` for the Edge web browser. -var edge = 'msLaunchUri' in navigator && !('documentMode' in document); - -// @property webkit: Boolean; -// `true` for webkit-based browsers like Chrome and Safari (including mobile versions). -var webkit = userAgentContains('webkit'); - -// @property android: Boolean -// `true` for any browser running on an Android platform. -var android = userAgentContains('android'); - -// @property android23: Boolean; `true` for browsers running on Android 2 or Android 3. -var android23 = userAgentContains('android 2') || userAgentContains('android 3'); - -// @property opera: Boolean; `true` for the Opera browser -var opera = !!window.opera; - -// @property chrome: Boolean; `true` for the Chrome browser. -var chrome = userAgentContains('chrome'); - -// @property gecko: Boolean; `true` for gecko-based browsers like Firefox. -var gecko = userAgentContains('gecko') && !webkit && !opera && !ie; - -// @property safari: Boolean; `true` for the Safari browser. -var safari = !chrome && userAgentContains('safari'); - -var phantom = userAgentContains('phantom'); - -// @property opera12: Boolean -// `true` for the Opera browser supporting CSS transforms (version 12 or later). -var opera12 = 'OTransition' in style$1; - -// @property win: Boolean; `true` when the browser is running in a Windows platform -var win = navigator.platform.indexOf('Win') === 0; - -// @property ie3d: Boolean; `true` for all Internet Explorer versions supporting CSS transforms. -var ie3d = ie && ('transition' in style$1); - -// @property webkit3d: Boolean; `true` for webkit-based browsers supporting CSS transforms. -var webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23; - -// @property gecko3d: Boolean; `true` for gecko-based browsers supporting CSS transforms. -var gecko3d = 'MozPerspective' in style$1; - -// @property any3d: Boolean -// `true` for all browsers supporting CSS transforms. -var any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantom; - -// @property mobile: Boolean; `true` for all browsers running in a mobile device. -var mobile = typeof orientation !== 'undefined' || userAgentContains('mobile'); - -// @property mobileWebkit: Boolean; `true` for all webkit-based browsers in a mobile device. -var mobileWebkit = mobile && webkit; - -// @property mobileWebkit3d: Boolean -// `true` for all webkit-based browsers in a mobile device supporting CSS transforms. -var mobileWebkit3d = mobile && webkit3d; - -// @property msPointer: Boolean -// `true` for browsers implementing the Microsoft touch events model (notably IE10). -var msPointer = !window.PointerEvent && window.MSPointerEvent; - -// @property pointer: Boolean -// `true` for all browsers supporting [pointer events](https://msdn.microsoft.com/en-us/library/dn433244%28v=vs.85%29.aspx). -var pointer = !!(window.PointerEvent || msPointer); - -// @property touch: Boolean -// `true` for all browsers supporting [touch events](https://developer.mozilla.org/docs/Web/API/Touch_events). -// This does not necessarily mean that the browser is running in a computer with -// a touchscreen, it only means that the browser is capable of understanding -// touch events. -var touch = !window.L_NO_TOUCH && (pointer || 'ontouchstart' in window || - (window.DocumentTouch && document instanceof window.DocumentTouch)); - -// @property mobileOpera: Boolean; `true` for the Opera browser in a mobile device. -var mobileOpera = mobile && opera; - -// @property mobileGecko: Boolean -// `true` for gecko-based browsers running in a mobile device. -var mobileGecko = mobile && gecko; - -// @property retina: Boolean -// `true` for browsers on a high-resolution "retina" screen. -var retina = (window.devicePixelRatio || (window.screen.deviceXDPI / window.screen.logicalXDPI)) > 1; - - -// @property canvas: Boolean -// `true` when the browser supports [``](https://developer.mozilla.org/docs/Web/API/Canvas_API). -var canvas = (function () { - return !!document.createElement('canvas').getContext; -}()); - -// @property svg: Boolean -// `true` when the browser supports [SVG](https://developer.mozilla.org/docs/Web/SVG). -var svg = !!(document.createElementNS && svgCreate('svg').createSVGRect); - -// @property vml: Boolean -// `true` if the browser supports [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language). -var vml = !svg && (function () { - try { - var div = document.createElement('div'); - div.innerHTML = ''; - - var shape = div.firstChild; - shape.style.behavior = 'url(#default#VML)'; - - return shape && (typeof shape.adj === 'object'); - - } catch (e) { - return false; - } -}()); - - -function userAgentContains(str) { - return navigator.userAgent.toLowerCase().indexOf(str) >= 0; -} - - -var Browser = (Object.freeze || Object)({ - ie: ie, - ielt9: ielt9, - edge: edge, - webkit: webkit, - android: android, - android23: android23, - opera: opera, - chrome: chrome, - gecko: gecko, - safari: safari, - phantom: phantom, - opera12: opera12, - win: win, - ie3d: ie3d, - webkit3d: webkit3d, - gecko3d: gecko3d, - any3d: any3d, - mobile: mobile, - mobileWebkit: mobileWebkit, - mobileWebkit3d: mobileWebkit3d, - msPointer: msPointer, - pointer: pointer, - touch: touch, - mobileOpera: mobileOpera, - mobileGecko: mobileGecko, - retina: retina, - canvas: canvas, - svg: svg, - vml: vml -}); - -/* - * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices. - */ - - -var POINTER_DOWN = msPointer ? 'MSPointerDown' : 'pointerdown'; -var POINTER_MOVE = msPointer ? 'MSPointerMove' : 'pointermove'; -var POINTER_UP = msPointer ? 'MSPointerUp' : 'pointerup'; -var POINTER_CANCEL = msPointer ? 'MSPointerCancel' : 'pointercancel'; -var TAG_WHITE_LIST = ['INPUT', 'SELECT', 'OPTION']; -var _pointers = {}; -var _pointerDocListener = false; - -// DomEvent.DoubleTap needs to know about this -var _pointersCount = 0; - -// Provides a touch events wrapper for (ms)pointer events. -// ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890 - -function addPointerListener(obj, type, handler, id) { - if (type === 'touchstart') { - _addPointerStart(obj, handler, id); - - } else if (type === 'touchmove') { - _addPointerMove(obj, handler, id); - - } else if (type === 'touchend') { - _addPointerEnd(obj, handler, id); - } - - return this; -} - -function removePointerListener(obj, type, id) { - var handler = obj['_leaflet_' + type + id]; - - if (type === 'touchstart') { - obj.removeEventListener(POINTER_DOWN, handler, false); - - } else if (type === 'touchmove') { - obj.removeEventListener(POINTER_MOVE, handler, false); - - } else if (type === 'touchend') { - obj.removeEventListener(POINTER_UP, handler, false); - obj.removeEventListener(POINTER_CANCEL, handler, false); - } - - return this; -} - -function _addPointerStart(obj, handler, id) { - var onDown = bind(function (e) { - if (e.pointerType !== 'mouse' && e.pointerType !== e.MSPOINTER_TYPE_MOUSE && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) { - // In IE11, some touch events needs to fire for form controls, or - // the controls will stop working. We keep a whitelist of tag names that - // need these events. For other target tags, we prevent default on the event. - if (TAG_WHITE_LIST.indexOf(e.target.tagName) < 0) { - preventDefault(e); - } else { - return; - } - } - - _handlePointer(e, handler); - }); - - obj['_leaflet_touchstart' + id] = onDown; - obj.addEventListener(POINTER_DOWN, onDown, false); - - // need to keep track of what pointers and how many are active to provide e.touches emulation - if (!_pointerDocListener) { - // we listen documentElement as any drags that end by moving the touch off the screen get fired there - document.documentElement.addEventListener(POINTER_DOWN, _globalPointerDown, true); - document.documentElement.addEventListener(POINTER_MOVE, _globalPointerMove, true); - document.documentElement.addEventListener(POINTER_UP, _globalPointerUp, true); - document.documentElement.addEventListener(POINTER_CANCEL, _globalPointerUp, true); - - _pointerDocListener = true; - } -} - -function _globalPointerDown(e) { - _pointers[e.pointerId] = e; - _pointersCount++; -} - -function _globalPointerMove(e) { - if (_pointers[e.pointerId]) { - _pointers[e.pointerId] = e; - } -} - -function _globalPointerUp(e) { - delete _pointers[e.pointerId]; - _pointersCount--; -} - -function _handlePointer(e, handler) { - e.touches = []; - for (var i in _pointers) { - e.touches.push(_pointers[i]); - } - e.changedTouches = [e]; - - handler(e); -} - -function _addPointerMove(obj, handler, id) { - var onMove = function (e) { - // don't fire touch moves when mouse isn't down - if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; } - - _handlePointer(e, handler); - }; - - obj['_leaflet_touchmove' + id] = onMove; - obj.addEventListener(POINTER_MOVE, onMove, false); -} - -function _addPointerEnd(obj, handler, id) { - var onUp = function (e) { - _handlePointer(e, handler); - }; - - obj['_leaflet_touchend' + id] = onUp; - obj.addEventListener(POINTER_UP, onUp, false); - obj.addEventListener(POINTER_CANCEL, onUp, false); -} - -/* - * Extends the event handling code with double tap support for mobile browsers. - */ - -var _touchstart = msPointer ? 'MSPointerDown' : pointer ? 'pointerdown' : 'touchstart'; -var _touchend = msPointer ? 'MSPointerUp' : pointer ? 'pointerup' : 'touchend'; -var _pre = '_leaflet_'; - -// inspired by Zepto touch code by Thomas Fuchs -function addDoubleTapListener(obj, handler, id) { - var last, touch$$1, - doubleTap = false, - delay = 250; - - function onTouchStart(e) { - var count; - - if (pointer) { - if ((!edge) || e.pointerType === 'mouse') { return; } - count = _pointersCount; - } else { - count = e.touches.length; - } - - if (count > 1) { return; } - - var now = Date.now(), - delta = now - (last || now); - - touch$$1 = e.touches ? e.touches[0] : e; - doubleTap = (delta > 0 && delta <= delay); - last = now; - } - - function onTouchEnd(e) { - if (doubleTap && !touch$$1.cancelBubble) { - if (pointer) { - if ((!edge) || e.pointerType === 'mouse') { return; } - // work around .type being readonly with MSPointer* events - var newTouch = {}, - prop, i; - - for (i in touch$$1) { - prop = touch$$1[i]; - newTouch[i] = prop && prop.bind ? prop.bind(touch$$1) : prop; - } - touch$$1 = newTouch; - } - touch$$1.type = 'dblclick'; - handler(touch$$1); - last = null; - } - } - - obj[_pre + _touchstart + id] = onTouchStart; - obj[_pre + _touchend + id] = onTouchEnd; - obj[_pre + 'dblclick' + id] = handler; - - obj.addEventListener(_touchstart, onTouchStart, false); - obj.addEventListener(_touchend, onTouchEnd, false); - - // On some platforms (notably, chrome<55 on win10 + touchscreen + mouse), - // the browser doesn't fire touchend/pointerup events but does fire - // native dblclicks. See #4127. - // Edge 14 also fires native dblclicks, but only for pointerType mouse, see #5180. - obj.addEventListener('dblclick', handler, false); - - return this; -} - -function removeDoubleTapListener(obj, id) { - var touchstart = obj[_pre + _touchstart + id], - touchend = obj[_pre + _touchend + id], - dblclick = obj[_pre + 'dblclick' + id]; - - obj.removeEventListener(_touchstart, touchstart, false); - obj.removeEventListener(_touchend, touchend, false); - if (!edge) { - obj.removeEventListener('dblclick', dblclick, false); - } - - return this; -} - -/* - * @namespace DomEvent - * Utility functions to work with the [DOM events](https://developer.mozilla.org/docs/Web/API/Event), used by Leaflet internally. - */ - -// Inspired by John Resig, Dean Edwards and YUI addEvent implementations. - -// @function on(el: HTMLElement, types: String, fn: Function, context?: Object): this -// Adds a listener function (`fn`) to a particular DOM event type of the -// element `el`. You can optionally specify the context of the listener -// (object the `this` keyword will point to). You can also pass several -// space-separated types (e.g. `'click dblclick'`). - -// @alternative -// @function on(el: HTMLElement, eventMap: Object, context?: Object): this -// Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}` -function on(obj, types, fn, context) { - - if (typeof types === 'object') { - for (var type in types) { - addOne(obj, type, types[type], fn); - } - } else { - types = splitWords(types); - - for (var i = 0, len = types.length; i < len; i++) { - addOne(obj, types[i], fn, context); - } - } - - return this; -} - -var eventsKey = '_leaflet_events'; - -// @function off(el: HTMLElement, types: String, fn: Function, context?: Object): this -// Removes a previously added listener function. If no function is specified, -// it will remove all the listeners of that particular DOM event from the element. -// Note that if you passed a custom context to on, you must pass the same -// context to `off` in order to remove the listener. - -// @alternative -// @function off(el: HTMLElement, eventMap: Object, context?: Object): this -// Removes a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}` - -// @alternative -// @function off(el: HTMLElement): this -// Removes all known event listeners -function off(obj, types, fn, context) { - - if (typeof types === 'object') { - for (var type in types) { - removeOne(obj, type, types[type], fn); - } - } else if (types) { - types = splitWords(types); - - for (var i = 0, len = types.length; i < len; i++) { - removeOne(obj, types[i], fn, context); - } - } else { - for (var j in obj[eventsKey]) { - removeOne(obj, j, obj[eventsKey][j]); - } - delete obj[eventsKey]; - } - - return this; -} - -function addOne(obj, type, fn, context) { - var id = type + stamp(fn) + (context ? '_' + stamp(context) : ''); - - if (obj[eventsKey] && obj[eventsKey][id]) { return this; } - - var handler = function (e) { - return fn.call(context || obj, e || window.event); - }; - - var originalHandler = handler; - - if (pointer && type.indexOf('touch') === 0) { - // Needs DomEvent.Pointer.js - addPointerListener(obj, type, handler, id); - - } else if (touch && (type === 'dblclick') && addDoubleTapListener && - !(pointer && chrome)) { - // Chrome >55 does not need the synthetic dblclicks from addDoubleTapListener - // See #5180 - addDoubleTapListener(obj, handler, id); - - } else if ('addEventListener' in obj) { - - if (type === 'mousewheel') { - obj.addEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false); - - } else if ((type === 'mouseenter') || (type === 'mouseleave')) { - handler = function (e) { - e = e || window.event; - if (isExternalTarget(obj, e)) { - originalHandler(e); - } - }; - obj.addEventListener(type === 'mouseenter' ? 'mouseover' : 'mouseout', handler, false); - - } else { - if (type === 'click' && android) { - handler = function (e) { - filterClick(e, originalHandler); - }; - } - obj.addEventListener(type, handler, false); - } - - } else if ('attachEvent' in obj) { - obj.attachEvent('on' + type, handler); - } - - obj[eventsKey] = obj[eventsKey] || {}; - obj[eventsKey][id] = handler; -} - -function removeOne(obj, type, fn, context) { - - var id = type + stamp(fn) + (context ? '_' + stamp(context) : ''), - handler = obj[eventsKey] && obj[eventsKey][id]; - - if (!handler) { return this; } - - if (pointer && type.indexOf('touch') === 0) { - removePointerListener(obj, type, id); - - } else if (touch && (type === 'dblclick') && removeDoubleTapListener) { - removeDoubleTapListener(obj, id); - - } else if ('removeEventListener' in obj) { - - if (type === 'mousewheel') { - obj.removeEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false); - - } else { - obj.removeEventListener( - type === 'mouseenter' ? 'mouseover' : - type === 'mouseleave' ? 'mouseout' : type, handler, false); - } - - } else if ('detachEvent' in obj) { - obj.detachEvent('on' + type, handler); - } - - obj[eventsKey][id] = null; -} - -// @function stopPropagation(ev: DOMEvent): this -// Stop the given event from propagation to parent elements. Used inside the listener functions: -// ```js -// L.DomEvent.on(div, 'click', function (ev) { -// L.DomEvent.stopPropagation(ev); -// }); -// ``` -function stopPropagation(e) { - - if (e.stopPropagation) { - e.stopPropagation(); - } else if (e.originalEvent) { // In case of Leaflet event. - e.originalEvent._stopped = true; - } else { - e.cancelBubble = true; - } - skipped(e); - - return this; -} - -// @function disableScrollPropagation(el: HTMLElement): this -// Adds `stopPropagation` to the element's `'mousewheel'` events (plus browser variants). -function disableScrollPropagation(el) { - addOne(el, 'mousewheel', stopPropagation); - return this; -} - -// @function disableClickPropagation(el: HTMLElement): this -// Adds `stopPropagation` to the element's `'click'`, `'doubleclick'`, -// `'mousedown'` and `'touchstart'` events (plus browser variants). -function disableClickPropagation(el) { - on(el, 'mousedown touchstart dblclick', stopPropagation); - addOne(el, 'click', fakeStop); - return this; -} - -// @function preventDefault(ev: DOMEvent): this -// Prevents the default action of the DOM Event `ev` from happening (such as -// following a link in the href of the a element, or doing a POST request -// with page reload when a `
` is submitted). -// Use it inside listener functions. -function preventDefault(e) { - if (e.preventDefault) { - e.preventDefault(); - } else { - e.returnValue = false; - } - return this; -} - -// @function stop(ev): this -// Does `stopPropagation` and `preventDefault` at the same time. -function stop(e) { - preventDefault(e); - stopPropagation(e); - return this; -} - -// @function getMousePosition(ev: DOMEvent, container?: HTMLElement): Point -// Gets normalized mouse position from a DOM event relative to the -// `container` or to the whole page if not specified. -function getMousePosition(e, container) { - if (!container) { - return new Point(e.clientX, e.clientY); - } - - var rect = container.getBoundingClientRect(); - - return new Point( - e.clientX - rect.left - container.clientLeft, - e.clientY - rect.top - container.clientTop); -} - -// Chrome on Win scrolls double the pixels as in other platforms (see #4538), -// and Firefox scrolls device pixels, not CSS pixels -var wheelPxFactor = - (win && chrome) ? 2 * window.devicePixelRatio : - gecko ? window.devicePixelRatio : 1; - -// @function getWheelDelta(ev: DOMEvent): Number -// Gets normalized wheel delta from a mousewheel DOM event, in vertical -// pixels scrolled (negative if scrolling down). -// Events from pointing devices without precise scrolling are mapped to -// a best guess of 60 pixels. -function getWheelDelta(e) { - return (edge) ? e.wheelDeltaY / 2 : // Don't trust window-geometry-based delta - (e.deltaY && e.deltaMode === 0) ? -e.deltaY / wheelPxFactor : // Pixels - (e.deltaY && e.deltaMode === 1) ? -e.deltaY * 20 : // Lines - (e.deltaY && e.deltaMode === 2) ? -e.deltaY * 60 : // Pages - (e.deltaX || e.deltaZ) ? 0 : // Skip horizontal/depth wheel events - e.wheelDelta ? (e.wheelDeltaY || e.wheelDelta) / 2 : // Legacy IE pixels - (e.detail && Math.abs(e.detail) < 32765) ? -e.detail * 20 : // Legacy Moz lines - e.detail ? e.detail / -32765 * 60 : // Legacy Moz pages - 0; -} - -var skipEvents = {}; - -function fakeStop(e) { - // fakes stopPropagation by setting a special event flag, checked/reset with skipped(e) - skipEvents[e.type] = true; -} - -function skipped(e) { - var events = skipEvents[e.type]; - // reset when checking, as it's only used in map container and propagates outside of the map - skipEvents[e.type] = false; - return events; -} - -// check if element really left/entered the event target (for mouseenter/mouseleave) -function isExternalTarget(el, e) { - - var related = e.relatedTarget; - - if (!related) { return true; } - - try { - while (related && (related !== el)) { - related = related.parentNode; - } - } catch (err) { - return false; - } - return (related !== el); -} - -var lastClick; - -// this is a horrible workaround for a bug in Android where a single touch triggers two click events -function filterClick(e, handler) { - var timeStamp = (e.timeStamp || (e.originalEvent && e.originalEvent.timeStamp)), - elapsed = lastClick && (timeStamp - lastClick); - - // are they closer together than 500ms yet more than 100ms? - // Android typically triggers them ~300ms apart while multiple listeners - // on the same event should be triggered far faster; - // or check if click is simulated on the element, and if it is, reject any non-simulated events - - if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) { - stop(e); - return; - } - lastClick = timeStamp; - - handler(e); -} - - - - -var DomEvent = (Object.freeze || Object)({ - on: on, - off: off, - stopPropagation: stopPropagation, - disableScrollPropagation: disableScrollPropagation, - disableClickPropagation: disableClickPropagation, - preventDefault: preventDefault, - stop: stop, - getMousePosition: getMousePosition, - getWheelDelta: getWheelDelta, - fakeStop: fakeStop, - skipped: skipped, - isExternalTarget: isExternalTarget, - addListener: on, - removeListener: off -}); - -/* - * @namespace DomUtil - * - * Utility functions to work with the [DOM](https://developer.mozilla.org/docs/Web/API/Document_Object_Model) - * tree, used by Leaflet internally. - * - * Most functions expecting or returning a `HTMLElement` also work for - * SVG elements. The only difference is that classes refer to CSS classes - * in HTML and SVG classes in SVG. - */ - - -// @property TRANSFORM: String -// Vendor-prefixed transform style name (e.g. `'webkitTransform'` for WebKit). -var TRANSFORM = testProp( - ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']); - -// webkitTransition comes first because some browser versions that drop vendor prefix don't do -// the same for the transitionend event, in particular the Android 4.1 stock browser - -// @property TRANSITION: String -// Vendor-prefixed transition style name. -var TRANSITION = testProp( - ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']); - -// @property TRANSITION_END: String -// Vendor-prefixed transitionend event name. -var TRANSITION_END = - TRANSITION === 'webkitTransition' || TRANSITION === 'OTransition' ? TRANSITION + 'End' : 'transitionend'; - - -// @function get(id: String|HTMLElement): HTMLElement -// Returns an element given its DOM id, or returns the element itself -// if it was passed directly. -function get(id) { - return typeof id === 'string' ? document.getElementById(id) : id; -} - -// @function getStyle(el: HTMLElement, styleAttrib: String): String -// Returns the value for a certain style attribute on an element, -// including computed values or values set through CSS. -function getStyle(el, style) { - var value = el.style[style] || (el.currentStyle && el.currentStyle[style]); - - if ((!value || value === 'auto') && document.defaultView) { - var css = document.defaultView.getComputedStyle(el, null); - value = css ? css[style] : null; - } - return value === 'auto' ? null : value; -} - -// @function create(tagName: String, className?: String, container?: HTMLElement): HTMLElement -// Creates an HTML element with `tagName`, sets its class to `className`, and optionally appends it to `container` element. -function create$1(tagName, className, container) { - var el = document.createElement(tagName); - el.className = className || ''; - - if (container) { - container.appendChild(el); - } - return el; -} - -// @function remove(el: HTMLElement) -// Removes `el` from its parent element -function remove(el) { - var parent = el.parentNode; - if (parent) { - parent.removeChild(el); - } -} - -// @function empty(el: HTMLElement) -// Removes all of `el`'s children elements from `el` -function empty(el) { - while (el.firstChild) { - el.removeChild(el.firstChild); - } -} - -// @function toFront(el: HTMLElement) -// Makes `el` the last child of its parent, so it renders in front of the other children. -function toFront(el) { - var parent = el.parentNode; - if (parent.lastChild !== el) { - parent.appendChild(el); - } -} - -// @function toBack(el: HTMLElement) -// Makes `el` the first child of its parent, so it renders behind the other children. -function toBack(el) { - var parent = el.parentNode; - if (parent.firstChild !== el) { - parent.insertBefore(el, parent.firstChild); - } -} - -// @function hasClass(el: HTMLElement, name: String): Boolean -// Returns `true` if the element's class attribute contains `name`. -function hasClass(el, name) { - if (el.classList !== undefined) { - return el.classList.contains(name); - } - var className = getClass(el); - return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className); -} - -// @function addClass(el: HTMLElement, name: String) -// Adds `name` to the element's class attribute. -function addClass(el, name) { - if (el.classList !== undefined) { - var classes = splitWords(name); - for (var i = 0, len = classes.length; i < len; i++) { - el.classList.add(classes[i]); - } - } else if (!hasClass(el, name)) { - var className = getClass(el); - setClass(el, (className ? className + ' ' : '') + name); - } -} - -// @function removeClass(el: HTMLElement, name: String) -// Removes `name` from the element's class attribute. -function removeClass(el, name) { - if (el.classList !== undefined) { - el.classList.remove(name); - } else { - setClass(el, trim((' ' + getClass(el) + ' ').replace(' ' + name + ' ', ' '))); - } -} - -// @function setClass(el: HTMLElement, name: String) -// Sets the element's class. -function setClass(el, name) { - if (el.className.baseVal === undefined) { - el.className = name; - } else { - // in case of SVG element - el.className.baseVal = name; - } -} - -// @function getClass(el: HTMLElement): String -// Returns the element's class. -function getClass(el) { - return el.className.baseVal === undefined ? el.className : el.className.baseVal; -} - -// @function setOpacity(el: HTMLElement, opacity: Number) -// Set the opacity of an element (including old IE support). -// `opacity` must be a number from `0` to `1`. -function setOpacity(el, value) { - if ('opacity' in el.style) { - el.style.opacity = value; - } else if ('filter' in el.style) { - _setOpacityIE(el, value); - } -} - -function _setOpacityIE(el, value) { - var filter = false, - filterName = 'DXImageTransform.Microsoft.Alpha'; - - // filters collection throws an error if we try to retrieve a filter that doesn't exist - try { - filter = el.filters.item(filterName); - } catch (e) { - // don't set opacity to 1 if we haven't already set an opacity, - // it isn't needed and breaks transparent pngs. - if (value === 1) { return; } - } - - value = Math.round(value * 100); - - if (filter) { - filter.Enabled = (value !== 100); - filter.Opacity = value; - } else { - el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')'; - } -} - -// @function testProp(props: String[]): String|false -// Goes through the array of style names and returns the first name -// that is a valid style name for an element. If no such name is found, -// it returns false. Useful for vendor-prefixed styles like `transform`. -function testProp(props) { - var style = document.documentElement.style; - - for (var i = 0; i < props.length; i++) { - if (props[i] in style) { - return props[i]; - } - } - return false; -} - -// @function setTransform(el: HTMLElement, offset: Point, scale?: Number) -// Resets the 3D CSS transform of `el` so it is translated by `offset` pixels -// and optionally scaled by `scale`. Does not have an effect if the -// browser doesn't support 3D CSS transforms. -function setTransform(el, offset, scale) { - var pos = offset || new Point(0, 0); - - el.style[TRANSFORM] = - (ie3d ? - 'translate(' + pos.x + 'px,' + pos.y + 'px)' : - 'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') + - (scale ? ' scale(' + scale + ')' : ''); -} - -// @function setPosition(el: HTMLElement, position: Point) -// Sets the position of `el` to coordinates specified by `position`, -// using CSS translate or top/left positioning depending on the browser -// (used by Leaflet internally to position its layers). -function setPosition(el, point) { - - /*eslint-disable */ - el._leaflet_pos = point; - /*eslint-enable */ - - if (any3d) { - setTransform(el, point); - } else { - el.style.left = point.x + 'px'; - el.style.top = point.y + 'px'; - } -} - -// @function getPosition(el: HTMLElement): Point -// Returns the coordinates of an element previously positioned with setPosition. -function getPosition(el) { - // this method is only used for elements previously positioned using setPosition, - // so it's safe to cache the position for performance - - return el._leaflet_pos || new Point(0, 0); -} - -// @function disableTextSelection() -// Prevents the user from generating `selectstart` DOM events, usually generated -// when the user drags the mouse through a page with text. Used internally -// by Leaflet to override the behaviour of any click-and-drag interaction on -// the map. Affects drag interactions on the whole document. - -// @function enableTextSelection() -// Cancels the effects of a previous [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection). -var disableTextSelection; -var enableTextSelection; -var _userSelect; -if ('onselectstart' in document) { - disableTextSelection = function () { - on(window, 'selectstart', preventDefault); - }; - enableTextSelection = function () { - off(window, 'selectstart', preventDefault); - }; -} else { - var userSelectProperty = testProp( - ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']); - - disableTextSelection = function () { - if (userSelectProperty) { - var style = document.documentElement.style; - _userSelect = style[userSelectProperty]; - style[userSelectProperty] = 'none'; - } - }; - enableTextSelection = function () { - if (userSelectProperty) { - document.documentElement.style[userSelectProperty] = _userSelect; - _userSelect = undefined; - } - }; -} - -// @function disableImageDrag() -// As [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection), but -// for `dragstart` DOM events, usually generated when the user drags an image. -function disableImageDrag() { - on(window, 'dragstart', preventDefault); -} - -// @function enableImageDrag() -// Cancels the effects of a previous [`L.DomUtil.disableImageDrag`](#domutil-disabletextselection). -function enableImageDrag() { - off(window, 'dragstart', preventDefault); -} - -var _outlineElement; -var _outlineStyle; -// @function preventOutline(el: HTMLElement) -// Makes the [outline](https://developer.mozilla.org/docs/Web/CSS/outline) -// of the element `el` invisible. Used internally by Leaflet to prevent -// focusable elements from displaying an outline when the user performs a -// drag interaction on them. -function preventOutline(element) { - while (element.tabIndex === -1) { - element = element.parentNode; - } - if (!element.style) { return; } - restoreOutline(); - _outlineElement = element; - _outlineStyle = element.style.outline; - element.style.outline = 'none'; - on(window, 'keydown', restoreOutline); -} - -// @function restoreOutline() -// Cancels the effects of a previous [`L.DomUtil.preventOutline`](). -function restoreOutline() { - if (!_outlineElement) { return; } - _outlineElement.style.outline = _outlineStyle; - _outlineElement = undefined; - _outlineStyle = undefined; - off(window, 'keydown', restoreOutline); -} - - -var DomUtil = (Object.freeze || Object)({ - TRANSFORM: TRANSFORM, - TRANSITION: TRANSITION, - TRANSITION_END: TRANSITION_END, - get: get, - getStyle: getStyle, - create: create$1, - remove: remove, - empty: empty, - toFront: toFront, - toBack: toBack, - hasClass: hasClass, - addClass: addClass, - removeClass: removeClass, - setClass: setClass, - getClass: getClass, - setOpacity: setOpacity, - testProp: testProp, - setTransform: setTransform, - setPosition: setPosition, - getPosition: getPosition, - disableTextSelection: disableTextSelection, - enableTextSelection: enableTextSelection, - disableImageDrag: disableImageDrag, - enableImageDrag: enableImageDrag, - preventOutline: preventOutline, - restoreOutline: restoreOutline -}); - -/* - * @class PosAnimation - * @aka L.PosAnimation - * @inherits Evented - * Used internally for panning animations, utilizing CSS3 Transitions for modern browsers and a timer fallback for IE6-9. - * - * @example - * ```js - * var fx = new L.PosAnimation(); - * fx.run(el, [300, 500], 0.5); - * ``` - * - * @constructor L.PosAnimation() - * Creates a `PosAnimation` object. - * - */ - -var PosAnimation = Evented.extend({ - - // @method run(el: HTMLElement, newPos: Point, duration?: Number, easeLinearity?: Number) - // Run an animation of a given element to a new position, optionally setting - // duration in seconds (`0.25` by default) and easing linearity factor (3rd - // argument of the [cubic bezier curve](http://cubic-bezier.com/#0,0,.5,1), - // `0.5` by default). - run: function (el, newPos, duration, easeLinearity) { - this.stop(); - - this._el = el; - this._inProgress = true; - this._duration = duration || 0.25; - this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2); - - this._startPos = getPosition(el); - this._offset = newPos.subtract(this._startPos); - this._startTime = +new Date(); - - // @event start: Event - // Fired when the animation starts - this.fire('start'); - - this._animate(); - }, - - // @method stop() - // Stops the animation (if currently running). - stop: function () { - if (!this._inProgress) { return; } - - this._step(true); - this._complete(); - }, - - _animate: function () { - // animation loop - this._animId = requestAnimFrame(this._animate, this); - this._step(); - }, - - _step: function (round) { - var elapsed = (+new Date()) - this._startTime, - duration = this._duration * 1000; - - if (elapsed < duration) { - this._runFrame(this._easeOut(elapsed / duration), round); - } else { - this._runFrame(1); - this._complete(); - } - }, - - _runFrame: function (progress, round) { - var pos = this._startPos.add(this._offset.multiplyBy(progress)); - if (round) { - pos._round(); - } - setPosition(this._el, pos); - - // @event step: Event - // Fired continuously during the animation. - this.fire('step'); - }, - - _complete: function () { - cancelAnimFrame(this._animId); - - this._inProgress = false; - // @event end: Event - // Fired when the animation ends. - this.fire('end'); - }, - - _easeOut: function (t) { - return 1 - Math.pow(1 - t, this._easeOutPower); - } -}); - -/* - * @class Map - * @aka L.Map - * @inherits Evented - * - * The central class of the API — it is used to create a map on a page and manipulate it. - * - * @example - * - * ```js - * // initialize the map on the "map" div with a given center and zoom - * var map = L.map('map', { - * center: [51.505, -0.09], - * zoom: 13 - * }); - * ``` - * - */ - -var Map = Evented.extend({ - - options: { - // @section Map State Options - // @option crs: CRS = L.CRS.EPSG3857 - // The [Coordinate Reference System](#crs) to use. Don't change this if you're not - // sure what it means. - crs: EPSG3857, - - // @option center: LatLng = undefined - // Initial geographic center of the map - center: undefined, - - // @option zoom: Number = undefined - // Initial map zoom level - zoom: undefined, - - // @option minZoom: Number = * - // Minimum zoom level of the map. - // If not specified and at least one `GridLayer` or `TileLayer` is in the map, - // the lowest of their `minZoom` options will be used instead. - minZoom: undefined, - - // @option maxZoom: Number = * - // Maximum zoom level of the map. - // If not specified and at least one `GridLayer` or `TileLayer` is in the map, - // the highest of their `maxZoom` options will be used instead. - maxZoom: undefined, - - // @option layers: Layer[] = [] - // Array of layers that will be added to the map initially - layers: [], - - // @option maxBounds: LatLngBounds = null - // When this option is set, the map restricts the view to the given - // geographical bounds, bouncing the user back if the user tries to pan - // outside the view. To set the restriction dynamically, use - // [`setMaxBounds`](#map-setmaxbounds) method. - maxBounds: undefined, - - // @option renderer: Renderer = * - // The default method for drawing vector layers on the map. `L.SVG` - // or `L.Canvas` by default depending on browser support. - renderer: undefined, - - - // @section Animation Options - // @option zoomAnimation: Boolean = true - // Whether the map zoom animation is enabled. By default it's enabled - // in all browsers that support CSS3 Transitions except Android. - zoomAnimation: true, - - // @option zoomAnimationThreshold: Number = 4 - // Won't animate zoom if the zoom difference exceeds this value. - zoomAnimationThreshold: 4, - - // @option fadeAnimation: Boolean = true - // Whether the tile fade animation is enabled. By default it's enabled - // in all browsers that support CSS3 Transitions except Android. - fadeAnimation: true, - - // @option markerZoomAnimation: Boolean = true - // Whether markers animate their zoom with the zoom animation, if disabled - // they will disappear for the length of the animation. By default it's - // enabled in all browsers that support CSS3 Transitions except Android. - markerZoomAnimation: true, - - // @option transform3DLimit: Number = 2^23 - // Defines the maximum size of a CSS translation transform. The default - // value should not be changed unless a web browser positions layers in - // the wrong place after doing a large `panBy`. - transform3DLimit: 8388608, // Precision limit of a 32-bit float - - // @section Interaction Options - // @option zoomSnap: Number = 1 - // Forces the map's zoom level to always be a multiple of this, particularly - // right after a [`fitBounds()`](#map-fitbounds) or a pinch-zoom. - // By default, the zoom level snaps to the nearest integer; lower values - // (e.g. `0.5` or `0.1`) allow for greater granularity. A value of `0` - // means the zoom level will not be snapped after `fitBounds` or a pinch-zoom. - zoomSnap: 1, - - // @option zoomDelta: Number = 1 - // Controls how much the map's zoom level will change after a - // [`zoomIn()`](#map-zoomin), [`zoomOut()`](#map-zoomout), pressing `+` - // or `-` on the keyboard, or using the [zoom controls](#control-zoom). - // Values smaller than `1` (e.g. `0.5`) allow for greater granularity. - zoomDelta: 1, - - // @option trackResize: Boolean = true - // Whether the map automatically handles browser window resize to update itself. - trackResize: true - }, - - initialize: function (id, options) { // (HTMLElement or String, Object) - options = setOptions(this, options); - - this._initContainer(id); - this._initLayout(); - - // hack for https://github.com/Leaflet/Leaflet/issues/1980 - this._onResize = bind(this._onResize, this); - - this._initEvents(); - - if (options.maxBounds) { - this.setMaxBounds(options.maxBounds); - } - - if (options.zoom !== undefined) { - this._zoom = this._limitZoom(options.zoom); - } - - if (options.center && options.zoom !== undefined) { - this.setView(toLatLng(options.center), options.zoom, {reset: true}); - } - - this._handlers = []; - this._layers = {}; - this._zoomBoundLayers = {}; - this._sizeChanged = true; - - this.callInitHooks(); - - // don't animate on browsers without hardware-accelerated transitions or old Android/Opera - this._zoomAnimated = TRANSITION && any3d && !mobileOpera && - this.options.zoomAnimation; - - // zoom transitions run with the same duration for all layers, so if one of transitionend events - // happens after starting zoom animation (propagating to the map pane), we know that it ended globally - if (this._zoomAnimated) { - this._createAnimProxy(); - on(this._proxy, TRANSITION_END, this._catchTransitionEnd, this); - } - - this._addLayers(this.options.layers); - }, - - - // @section Methods for modifying map state - - // @method setView(center: LatLng, zoom: Number, options?: Zoom/pan options): this - // Sets the view of the map (geographical center and zoom) with the given - // animation options. - setView: function (center, zoom, options) { - - zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom); - center = this._limitCenter(toLatLng(center), zoom, this.options.maxBounds); - options = options || {}; - - this._stop(); - - if (this._loaded && !options.reset && options !== true) { - - if (options.animate !== undefined) { - options.zoom = extend({animate: options.animate}, options.zoom); - options.pan = extend({animate: options.animate, duration: options.duration}, options.pan); - } - - // try animating pan or zoom - var moved = (this._zoom !== zoom) ? - this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) : - this._tryAnimatedPan(center, options.pan); - - if (moved) { - // prevent resize handler call, the view will refresh after animation anyway - clearTimeout(this._sizeTimer); - return this; - } - } - - // animation didn't start, just reset the map view - this._resetView(center, zoom); - - return this; - }, - - // @method setZoom(zoom: Number, options?: Zoom/pan options): this - // Sets the zoom of the map. - setZoom: function (zoom, options) { - if (!this._loaded) { - this._zoom = zoom; - return this; - } - return this.setView(this.getCenter(), zoom, {zoom: options}); - }, - - // @method zoomIn(delta?: Number, options?: Zoom options): this - // Increases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default). - zoomIn: function (delta, options) { - delta = delta || (any3d ? this.options.zoomDelta : 1); - return this.setZoom(this._zoom + delta, options); - }, - - // @method zoomOut(delta?: Number, options?: Zoom options): this - // Decreases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default). - zoomOut: function (delta, options) { - delta = delta || (any3d ? this.options.zoomDelta : 1); - return this.setZoom(this._zoom - delta, options); - }, - - // @method setZoomAround(latlng: LatLng, zoom: Number, options: Zoom options): this - // Zooms the map while keeping a specified geographical point on the map - // stationary (e.g. used internally for scroll zoom and double-click zoom). - // @alternative - // @method setZoomAround(offset: Point, zoom: Number, options: Zoom options): this - // Zooms the map while keeping a specified pixel on the map (relative to the top-left corner) stationary. - setZoomAround: function (latlng, zoom, options) { - var scale = this.getZoomScale(zoom), - viewHalf = this.getSize().divideBy(2), - containerPoint = latlng instanceof Point ? latlng : this.latLngToContainerPoint(latlng), - - centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale), - newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset)); - - return this.setView(newCenter, zoom, {zoom: options}); - }, - - _getBoundsCenterZoom: function (bounds, options) { - - options = options || {}; - bounds = bounds.getBounds ? bounds.getBounds() : toLatLngBounds(bounds); - - var paddingTL = toPoint(options.paddingTopLeft || options.padding || [0, 0]), - paddingBR = toPoint(options.paddingBottomRight || options.padding || [0, 0]), - - zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR)); - - zoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom; - - if (zoom === Infinity) { - return { - center: bounds.getCenter(), - zoom: zoom - }; - } - - var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2), - - swPoint = this.project(bounds.getSouthWest(), zoom), - nePoint = this.project(bounds.getNorthEast(), zoom), - center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom); - - return { - center: center, - zoom: zoom - }; - }, - - // @method fitBounds(bounds: LatLngBounds, options?: fitBounds options): this - // Sets a map view that contains the given geographical bounds with the - // maximum zoom level possible. - fitBounds: function (bounds, options) { - - bounds = toLatLngBounds(bounds); - - if (!bounds.isValid()) { - throw new Error('Bounds are not valid.'); - } - - var target = this._getBoundsCenterZoom(bounds, options); - return this.setView(target.center, target.zoom, options); - }, - - // @method fitWorld(options?: fitBounds options): this - // Sets a map view that mostly contains the whole world with the maximum - // zoom level possible. - fitWorld: function (options) { - return this.fitBounds([[-90, -180], [90, 180]], options); - }, - - // @method panTo(latlng: LatLng, options?: Pan options): this - // Pans the map to a given center. - panTo: function (center, options) { // (LatLng) - return this.setView(center, this._zoom, {pan: options}); - }, - - // @method panBy(offset: Point, options?: Pan options): this - // Pans the map by a given number of pixels (animated). - panBy: function (offset, options) { - offset = toPoint(offset).round(); - options = options || {}; - - if (!offset.x && !offset.y) { - return this.fire('moveend'); - } - // If we pan too far, Chrome gets issues with tiles - // and makes them disappear or appear in the wrong place (slightly offset) #2602 - if (options.animate !== true && !this.getSize().contains(offset)) { - this._resetView(this.unproject(this.project(this.getCenter()).add(offset)), this.getZoom()); - return this; - } - - if (!this._panAnim) { - this._panAnim = new PosAnimation(); - - this._panAnim.on({ - 'step': this._onPanTransitionStep, - 'end': this._onPanTransitionEnd - }, this); - } - - // don't fire movestart if animating inertia - if (!options.noMoveStart) { - this.fire('movestart'); - } - - // animate pan unless animate: false specified - if (options.animate !== false) { - addClass(this._mapPane, 'leaflet-pan-anim'); - - var newPos = this._getMapPanePos().subtract(offset).round(); - this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity); - } else { - this._rawPanBy(offset); - this.fire('move').fire('moveend'); - } - - return this; - }, - - // @method flyTo(latlng: LatLng, zoom?: Number, options?: Zoom/pan options): this - // Sets the view of the map (geographical center and zoom) performing a smooth - // pan-zoom animation. - flyTo: function (targetCenter, targetZoom, options) { - - options = options || {}; - if (options.animate === false || !any3d) { - return this.setView(targetCenter, targetZoom, options); - } - - this._stop(); - - var from = this.project(this.getCenter()), - to = this.project(targetCenter), - size = this.getSize(), - startZoom = this._zoom; - - targetCenter = toLatLng(targetCenter); - targetZoom = targetZoom === undefined ? startZoom : targetZoom; - - var w0 = Math.max(size.x, size.y), - w1 = w0 * this.getZoomScale(startZoom, targetZoom), - u1 = (to.distanceTo(from)) || 1, - rho = 1.42, - rho2 = rho * rho; - - function r(i) { - var s1 = i ? -1 : 1, - s2 = i ? w1 : w0, - t1 = w1 * w1 - w0 * w0 + s1 * rho2 * rho2 * u1 * u1, - b1 = 2 * s2 * rho2 * u1, - b = t1 / b1, - sq = Math.sqrt(b * b + 1) - b; - - // workaround for floating point precision bug when sq = 0, log = -Infinite, - // thus triggering an infinite loop in flyTo - var log = sq < 0.000000001 ? -18 : Math.log(sq); - - return log; - } - - function sinh(n) { return (Math.exp(n) - Math.exp(-n)) / 2; } - function cosh(n) { return (Math.exp(n) + Math.exp(-n)) / 2; } - function tanh(n) { return sinh(n) / cosh(n); } - - var r0 = r(0); - - function w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); } - function u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; } - - function easeOut(t) { return 1 - Math.pow(1 - t, 1.5); } - - var start = Date.now(), - S = (r(1) - r0) / rho, - duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8; - - function frame() { - var t = (Date.now() - start) / duration, - s = easeOut(t) * S; - - if (t <= 1) { - this._flyToFrame = requestAnimFrame(frame, this); - - this._move( - this.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom), - this.getScaleZoom(w0 / w(s), startZoom), - {flyTo: true}); - - } else { - this - ._move(targetCenter, targetZoom) - ._moveEnd(true); - } - } - - this._moveStart(true); - - frame.call(this); - return this; - }, - - // @method flyToBounds(bounds: LatLngBounds, options?: fitBounds options): this - // Sets the view of the map with a smooth animation like [`flyTo`](#map-flyto), - // but takes a bounds parameter like [`fitBounds`](#map-fitbounds). - flyToBounds: function (bounds, options) { - var target = this._getBoundsCenterZoom(bounds, options); - return this.flyTo(target.center, target.zoom, options); - }, - - // @method setMaxBounds(bounds: Bounds): this - // Restricts the map view to the given bounds (see the [maxBounds](#map-maxbounds) option). - setMaxBounds: function (bounds) { - bounds = toLatLngBounds(bounds); - - if (!bounds.isValid()) { - this.options.maxBounds = null; - return this.off('moveend', this._panInsideMaxBounds); - } else if (this.options.maxBounds) { - this.off('moveend', this._panInsideMaxBounds); - } - - this.options.maxBounds = bounds; - - if (this._loaded) { - this._panInsideMaxBounds(); - } - - return this.on('moveend', this._panInsideMaxBounds); - }, - - // @method setMinZoom(zoom: Number): this - // Sets the lower limit for the available zoom levels (see the [minZoom](#map-minzoom) option). - setMinZoom: function (zoom) { - this.options.minZoom = zoom; - - if (this._loaded && this.getZoom() < this.options.minZoom) { - return this.setZoom(zoom); - } - - return this; - }, - - // @method setMaxZoom(zoom: Number): this - // Sets the upper limit for the available zoom levels (see the [maxZoom](#map-maxzoom) option). - setMaxZoom: function (zoom) { - this.options.maxZoom = zoom; - - if (this._loaded && (this.getZoom() > this.options.maxZoom)) { - return this.setZoom(zoom); - } - - return this; - }, - - // @method panInsideBounds(bounds: LatLngBounds, options?: Pan options): this - // Pans the map to the closest view that would lie inside the given bounds (if it's not already), controlling the animation using the options specific, if any. - panInsideBounds: function (bounds, options) { - this._enforcingBounds = true; - var center = this.getCenter(), - newCenter = this._limitCenter(center, this._zoom, toLatLngBounds(bounds)); - - if (!center.equals(newCenter)) { - this.panTo(newCenter, options); - } - - this._enforcingBounds = false; - return this; - }, - - // @method invalidateSize(options: Zoom/Pan options): this - // Checks if the map container size changed and updates the map if so — - // call it after you've changed the map size dynamically, also animating - // pan by default. If `options.pan` is `false`, panning will not occur. - // If `options.debounceMoveend` is `true`, it will delay `moveend` event so - // that it doesn't happen often even if the method is called many - // times in a row. - - // @alternative - // @method invalidateSize(animate: Boolean): this - // Checks if the map container size changed and updates the map if so — - // call it after you've changed the map size dynamically, also animating - // pan by default. - invalidateSize: function (options) { - if (!this._loaded) { return this; } - - options = extend({ - animate: false, - pan: true - }, options === true ? {animate: true} : options); - - var oldSize = this.getSize(); - this._sizeChanged = true; - this._lastCenter = null; - - var newSize = this.getSize(), - oldCenter = oldSize.divideBy(2).round(), - newCenter = newSize.divideBy(2).round(), - offset = oldCenter.subtract(newCenter); - - if (!offset.x && !offset.y) { return this; } - - if (options.animate && options.pan) { - this.panBy(offset); - - } else { - if (options.pan) { - this._rawPanBy(offset); - } - - this.fire('move'); - - if (options.debounceMoveend) { - clearTimeout(this._sizeTimer); - this._sizeTimer = setTimeout(bind(this.fire, this, 'moveend'), 200); - } else { - this.fire('moveend'); - } - } - - // @section Map state change events - // @event resize: ResizeEvent - // Fired when the map is resized. - return this.fire('resize', { - oldSize: oldSize, - newSize: newSize - }); - }, - - // @section Methods for modifying map state - // @method stop(): this - // Stops the currently running `panTo` or `flyTo` animation, if any. - stop: function () { - this.setZoom(this._limitZoom(this._zoom)); - if (!this.options.zoomSnap) { - this.fire('viewreset'); - } - return this._stop(); - }, - - // @section Geolocation methods - // @method locate(options?: Locate options): this - // Tries to locate the user using the Geolocation API, firing a [`locationfound`](#map-locationfound) - // event with location data on success or a [`locationerror`](#map-locationerror) event on failure, - // and optionally sets the map view to the user's location with respect to - // detection accuracy (or to the world view if geolocation failed). - // Note that, if your page doesn't use HTTPS, this method will fail in - // modern browsers ([Chrome 50 and newer](https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-powerful-features-on-insecure-origins)) - // See `Locate options` for more details. - locate: function (options) { - - options = this._locateOptions = extend({ - timeout: 10000, - watch: false - // setView: false - // maxZoom: - // maximumAge: 0 - // enableHighAccuracy: false - }, options); - - if (!('geolocation' in navigator)) { - this._handleGeolocationError({ - code: 0, - message: 'Geolocation not supported.' - }); - return this; - } - - var onResponse = bind(this._handleGeolocationResponse, this), - onError = bind(this._handleGeolocationError, this); - - if (options.watch) { - this._locationWatchId = - navigator.geolocation.watchPosition(onResponse, onError, options); - } else { - navigator.geolocation.getCurrentPosition(onResponse, onError, options); - } - return this; - }, - - // @method stopLocate(): this - // Stops watching location previously initiated by `map.locate({watch: true})` - // and aborts resetting the map view if map.locate was called with - // `{setView: true}`. - stopLocate: function () { - if (navigator.geolocation && navigator.geolocation.clearWatch) { - navigator.geolocation.clearWatch(this._locationWatchId); - } - if (this._locateOptions) { - this._locateOptions.setView = false; - } - return this; - }, - - _handleGeolocationError: function (error) { - var c = error.code, - message = error.message || - (c === 1 ? 'permission denied' : - (c === 2 ? 'position unavailable' : 'timeout')); - - if (this._locateOptions.setView && !this._loaded) { - this.fitWorld(); - } - - // @section Location events - // @event locationerror: ErrorEvent - // Fired when geolocation (using the [`locate`](#map-locate) method) failed. - this.fire('locationerror', { - code: c, - message: 'Geolocation error: ' + message + '.' - }); - }, - - _handleGeolocationResponse: function (pos) { - var lat = pos.coords.latitude, - lng = pos.coords.longitude, - latlng = new LatLng(lat, lng), - bounds = latlng.toBounds(pos.coords.accuracy), - options = this._locateOptions; - - if (options.setView) { - var zoom = this.getBoundsZoom(bounds); - this.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom); - } - - var data = { - latlng: latlng, - bounds: bounds, - timestamp: pos.timestamp - }; - - for (var i in pos.coords) { - if (typeof pos.coords[i] === 'number') { - data[i] = pos.coords[i]; - } - } - - // @event locationfound: LocationEvent - // Fired when geolocation (using the [`locate`](#map-locate) method) - // went successfully. - this.fire('locationfound', data); - }, - - // TODO handler.addTo - // TODO Appropiate docs section? - // @section Other Methods - // @method addHandler(name: String, HandlerClass: Function): this - // Adds a new `Handler` to the map, given its name and constructor function. - addHandler: function (name, HandlerClass) { - if (!HandlerClass) { return this; } - - var handler = this[name] = new HandlerClass(this); - - this._handlers.push(handler); - - if (this.options[name]) { - handler.enable(); - } - - return this; - }, - - // @method remove(): this - // Destroys the map and clears all related event listeners. - remove: function () { - - this._initEvents(true); - - if (this._containerId !== this._container._leaflet_id) { - throw new Error('Map container is being reused by another instance'); - } - - try { - // throws error in IE6-8 - delete this._container._leaflet_id; - delete this._containerId; - } catch (e) { - /*eslint-disable */ - this._container._leaflet_id = undefined; - /*eslint-enable */ - this._containerId = undefined; - } - - remove(this._mapPane); - - if (this._clearControlPos) { - this._clearControlPos(); - } - - this._clearHandlers(); - - if (this._loaded) { - // @section Map state change events - // @event unload: Event - // Fired when the map is destroyed with [remove](#map-remove) method. - this.fire('unload'); - } - - var i; - for (i in this._layers) { - this._layers[i].remove(); - } - for (i in this._panes) { - remove(this._panes[i]); - } - - this._layers = []; - this._panes = []; - delete this._mapPane; - delete this._renderer; - - return this; - }, - - // @section Other Methods - // @method createPane(name: String, container?: HTMLElement): HTMLElement - // Creates a new [map pane](#map-pane) with the given name if it doesn't exist already, - // then returns it. The pane is created as a child of `container`, or - // as a child of the main map pane if not set. - createPane: function (name, container) { - var className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''), - pane = create$1('div', className, container || this._mapPane); - - if (name) { - this._panes[name] = pane; - } - return pane; - }, - - // @section Methods for Getting Map State - - // @method getCenter(): LatLng - // Returns the geographical center of the map view - getCenter: function () { - this._checkIfLoaded(); - - if (this._lastCenter && !this._moved()) { - return this._lastCenter; - } - return this.layerPointToLatLng(this._getCenterLayerPoint()); - }, - - // @method getZoom(): Number - // Returns the current zoom level of the map view - getZoom: function () { - return this._zoom; - }, - - // @method getBounds(): LatLngBounds - // Returns the geographical bounds visible in the current map view - getBounds: function () { - var bounds = this.getPixelBounds(), - sw = this.unproject(bounds.getBottomLeft()), - ne = this.unproject(bounds.getTopRight()); - - return new LatLngBounds(sw, ne); - }, - - // @method getMinZoom(): Number - // Returns the minimum zoom level of the map (if set in the `minZoom` option of the map or of any layers), or `0` by default. - getMinZoom: function () { - return this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom; - }, - - // @method getMaxZoom(): Number - // Returns the maximum zoom level of the map (if set in the `maxZoom` option of the map or of any layers). - getMaxZoom: function () { - return this.options.maxZoom === undefined ? - (this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) : - this.options.maxZoom; - }, - - // @method getBoundsZoom(bounds: LatLngBounds, inside?: Boolean): Number - // Returns the maximum zoom level on which the given bounds fit to the map - // view in its entirety. If `inside` (optional) is set to `true`, the method - // instead returns the minimum zoom level on which the map view fits into - // the given bounds in its entirety. - getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number - bounds = toLatLngBounds(bounds); - padding = toPoint(padding || [0, 0]); - - var zoom = this.getZoom() || 0, - min = this.getMinZoom(), - max = this.getMaxZoom(), - nw = bounds.getNorthWest(), - se = bounds.getSouthEast(), - size = this.getSize().subtract(padding), - boundsSize = toBounds(this.project(se, zoom), this.project(nw, zoom)).getSize(), - snap = any3d ? this.options.zoomSnap : 1, - scalex = size.x / boundsSize.x, - scaley = size.y / boundsSize.y, - scale = inside ? Math.max(scalex, scaley) : Math.min(scalex, scaley); - - zoom = this.getScaleZoom(scale, zoom); - - if (snap) { - zoom = Math.round(zoom / (snap / 100)) * (snap / 100); // don't jump if within 1% of a snap level - zoom = inside ? Math.ceil(zoom / snap) * snap : Math.floor(zoom / snap) * snap; - } - - return Math.max(min, Math.min(max, zoom)); - }, - - // @method getSize(): Point - // Returns the current size of the map container (in pixels). - getSize: function () { - if (!this._size || this._sizeChanged) { - this._size = new Point( - this._container.clientWidth || 0, - this._container.clientHeight || 0); - - this._sizeChanged = false; - } - return this._size.clone(); - }, - - // @method getPixelBounds(): Bounds - // Returns the bounds of the current map view in projected pixel - // coordinates (sometimes useful in layer and overlay implementations). - getPixelBounds: function (center, zoom) { - var topLeftPoint = this._getTopLeftPoint(center, zoom); - return new Bounds(topLeftPoint, topLeftPoint.add(this.getSize())); - }, - - // TODO: Check semantics - isn't the pixel origin the 0,0 coord relative to - // the map pane? "left point of the map layer" can be confusing, specially - // since there can be negative offsets. - // @method getPixelOrigin(): Point - // Returns the projected pixel coordinates of the top left point of - // the map layer (useful in custom layer and overlay implementations). - getPixelOrigin: function () { - this._checkIfLoaded(); - return this._pixelOrigin; - }, - - // @method getPixelWorldBounds(zoom?: Number): Bounds - // Returns the world's bounds in pixel coordinates for zoom level `zoom`. - // If `zoom` is omitted, the map's current zoom level is used. - getPixelWorldBounds: function (zoom) { - return this.options.crs.getProjectedBounds(zoom === undefined ? this.getZoom() : zoom); - }, - - // @section Other Methods - - // @method getPane(pane: String|HTMLElement): HTMLElement - // Returns a [map pane](#map-pane), given its name or its HTML element (its identity). - getPane: function (pane) { - return typeof pane === 'string' ? this._panes[pane] : pane; - }, - - // @method getPanes(): Object - // Returns a plain object containing the names of all [panes](#map-pane) as keys and - // the panes as values. - getPanes: function () { - return this._panes; - }, - - // @method getContainer: HTMLElement - // Returns the HTML element that contains the map. - getContainer: function () { - return this._container; - }, - - - // @section Conversion Methods - - // @method getZoomScale(toZoom: Number, fromZoom: Number): Number - // Returns the scale factor to be applied to a map transition from zoom level - // `fromZoom` to `toZoom`. Used internally to help with zoom animations. - getZoomScale: function (toZoom, fromZoom) { - // TODO replace with universal implementation after refactoring projections - var crs = this.options.crs; - fromZoom = fromZoom === undefined ? this._zoom : fromZoom; - return crs.scale(toZoom) / crs.scale(fromZoom); - }, - - // @method getScaleZoom(scale: Number, fromZoom: Number): Number - // Returns the zoom level that the map would end up at, if it is at `fromZoom` - // level and everything is scaled by a factor of `scale`. Inverse of - // [`getZoomScale`](#map-getZoomScale). - getScaleZoom: function (scale, fromZoom) { - var crs = this.options.crs; - fromZoom = fromZoom === undefined ? this._zoom : fromZoom; - var zoom = crs.zoom(scale * crs.scale(fromZoom)); - return isNaN(zoom) ? Infinity : zoom; - }, - - // @method project(latlng: LatLng, zoom: Number): Point - // Projects a geographical coordinate `LatLng` according to the projection - // of the map's CRS, then scales it according to `zoom` and the CRS's - // `Transformation`. The result is pixel coordinate relative to - // the CRS origin. - project: function (latlng, zoom) { - zoom = zoom === undefined ? this._zoom : zoom; - return this.options.crs.latLngToPoint(toLatLng(latlng), zoom); - }, - - // @method unproject(point: Point, zoom: Number): LatLng - // Inverse of [`project`](#map-project). - unproject: function (point, zoom) { - zoom = zoom === undefined ? this._zoom : zoom; - return this.options.crs.pointToLatLng(toPoint(point), zoom); - }, - - // @method layerPointToLatLng(point: Point): LatLng - // Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin), - // returns the corresponding geographical coordinate (for the current zoom level). - layerPointToLatLng: function (point) { - var projectedPoint = toPoint(point).add(this.getPixelOrigin()); - return this.unproject(projectedPoint); - }, - - // @method latLngToLayerPoint(latlng: LatLng): Point - // Given a geographical coordinate, returns the corresponding pixel coordinate - // relative to the [origin pixel](#map-getpixelorigin). - latLngToLayerPoint: function (latlng) { - var projectedPoint = this.project(toLatLng(latlng))._round(); - return projectedPoint._subtract(this.getPixelOrigin()); - }, - - // @method wrapLatLng(latlng: LatLng): LatLng - // Returns a `LatLng` where `lat` and `lng` has been wrapped according to the - // map's CRS's `wrapLat` and `wrapLng` properties, if they are outside the - // CRS's bounds. - // By default this means longitude is wrapped around the dateline so its - // value is between -180 and +180 degrees. - wrapLatLng: function (latlng) { - return this.options.crs.wrapLatLng(toLatLng(latlng)); - }, - - // @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds - // Returns a `LatLngBounds` with the same size as the given one, ensuring that - // its center is within the CRS's bounds. - // By default this means the center longitude is wrapped around the dateline so its - // value is between -180 and +180 degrees, and the majority of the bounds - // overlaps the CRS's bounds. - wrapLatLngBounds: function (latlng) { - return this.options.crs.wrapLatLngBounds(toLatLngBounds(latlng)); - }, - - // @method distance(latlng1: LatLng, latlng2: LatLng): Number - // Returns the distance between two geographical coordinates according to - // the map's CRS. By default this measures distance in meters. - distance: function (latlng1, latlng2) { - return this.options.crs.distance(toLatLng(latlng1), toLatLng(latlng2)); - }, - - // @method containerPointToLayerPoint(point: Point): Point - // Given a pixel coordinate relative to the map container, returns the corresponding - // pixel coordinate relative to the [origin pixel](#map-getpixelorigin). - containerPointToLayerPoint: function (point) { // (Point) - return toPoint(point).subtract(this._getMapPanePos()); - }, - - // @method layerPointToContainerPoint(point: Point): Point - // Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin), - // returns the corresponding pixel coordinate relative to the map container. - layerPointToContainerPoint: function (point) { // (Point) - return toPoint(point).add(this._getMapPanePos()); - }, - - // @method containerPointToLatLng(point: Point): LatLng - // Given a pixel coordinate relative to the map container, returns - // the corresponding geographical coordinate (for the current zoom level). - containerPointToLatLng: function (point) { - var layerPoint = this.containerPointToLayerPoint(toPoint(point)); - return this.layerPointToLatLng(layerPoint); - }, - - // @method latLngToContainerPoint(latlng: LatLng): Point - // Given a geographical coordinate, returns the corresponding pixel coordinate - // relative to the map container. - latLngToContainerPoint: function (latlng) { - return this.layerPointToContainerPoint(this.latLngToLayerPoint(toLatLng(latlng))); - }, - - // @method mouseEventToContainerPoint(ev: MouseEvent): Point - // Given a MouseEvent object, returns the pixel coordinate relative to the - // map container where the event took place. - mouseEventToContainerPoint: function (e) { - return getMousePosition(e, this._container); - }, - - // @method mouseEventToLayerPoint(ev: MouseEvent): Point - // Given a MouseEvent object, returns the pixel coordinate relative to - // the [origin pixel](#map-getpixelorigin) where the event took place. - mouseEventToLayerPoint: function (e) { - return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e)); - }, - - // @method mouseEventToLatLng(ev: MouseEvent): LatLng - // Given a MouseEvent object, returns geographical coordinate where the - // event took place. - mouseEventToLatLng: function (e) { // (MouseEvent) - return this.layerPointToLatLng(this.mouseEventToLayerPoint(e)); - }, - - - // map initialization methods - - _initContainer: function (id) { - var container = this._container = get(id); - - if (!container) { - throw new Error('Map container not found.'); - } else if (container._leaflet_id) { - throw new Error('Map container is already initialized.'); - } - - on(container, 'scroll', this._onScroll, this); - this._containerId = stamp(container); - }, - - _initLayout: function () { - var container = this._container; - - this._fadeAnimated = this.options.fadeAnimation && any3d; - - addClass(container, 'leaflet-container' + - (touch ? ' leaflet-touch' : '') + - (retina ? ' leaflet-retina' : '') + - (ielt9 ? ' leaflet-oldie' : '') + - (safari ? ' leaflet-safari' : '') + - (this._fadeAnimated ? ' leaflet-fade-anim' : '')); - - var position = getStyle(container, 'position'); - - if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') { - container.style.position = 'relative'; - } - - this._initPanes(); - - if (this._initControlPos) { - this._initControlPos(); - } - }, - - _initPanes: function () { - var panes = this._panes = {}; - this._paneRenderers = {}; - - // @section - // - // Panes are DOM elements used to control the ordering of layers on the map. You - // can access panes with [`map.getPane`](#map-getpane) or - // [`map.getPanes`](#map-getpanes) methods. New panes can be created with the - // [`map.createPane`](#map-createpane) method. - // - // Every map has the following default panes that differ only in zIndex. - // - // @pane mapPane: HTMLElement = 'auto' - // Pane that contains all other map panes - - this._mapPane = this.createPane('mapPane', this._container); - setPosition(this._mapPane, new Point(0, 0)); - - // @pane tilePane: HTMLElement = 200 - // Pane for `GridLayer`s and `TileLayer`s - this.createPane('tilePane'); - // @pane overlayPane: HTMLElement = 400 - // Pane for vector overlays (`Path`s), like `Polyline`s and `Polygon`s - this.createPane('shadowPane'); - // @pane shadowPane: HTMLElement = 500 - // Pane for overlay shadows (e.g. `Marker` shadows) - this.createPane('overlayPane'); - // @pane markerPane: HTMLElement = 600 - // Pane for `Icon`s of `Marker`s - this.createPane('markerPane'); - // @pane tooltipPane: HTMLElement = 650 - // Pane for tooltip. - this.createPane('tooltipPane'); - // @pane popupPane: HTMLElement = 700 - // Pane for `Popup`s. - this.createPane('popupPane'); - - if (!this.options.markerZoomAnimation) { - addClass(panes.markerPane, 'leaflet-zoom-hide'); - addClass(panes.shadowPane, 'leaflet-zoom-hide'); - } - }, - - - // private methods that modify map state - - // @section Map state change events - _resetView: function (center, zoom) { - setPosition(this._mapPane, new Point(0, 0)); - - var loading = !this._loaded; - this._loaded = true; - zoom = this._limitZoom(zoom); - - this.fire('viewprereset'); - - var zoomChanged = this._zoom !== zoom; - this - ._moveStart(zoomChanged) - ._move(center, zoom) - ._moveEnd(zoomChanged); - - // @event viewreset: Event - // Fired when the map needs to redraw its content (this usually happens - // on map zoom or load). Very useful for creating custom overlays. - this.fire('viewreset'); - - // @event load: Event - // Fired when the map is initialized (when its center and zoom are set - // for the first time). - if (loading) { - this.fire('load'); - } - }, - - _moveStart: function (zoomChanged) { - // @event zoomstart: Event - // Fired when the map zoom is about to change (e.g. before zoom animation). - // @event movestart: Event - // Fired when the view of the map starts changing (e.g. user starts dragging the map). - if (zoomChanged) { - this.fire('zoomstart'); - } - return this.fire('movestart'); - }, - - _move: function (center, zoom, data) { - if (zoom === undefined) { - zoom = this._zoom; - } - var zoomChanged = this._zoom !== zoom; - - this._zoom = zoom; - this._lastCenter = center; - this._pixelOrigin = this._getNewPixelOrigin(center); - - // @event zoom: Event - // Fired repeatedly during any change in zoom level, including zoom - // and fly animations. - if (zoomChanged || (data && data.pinch)) { // Always fire 'zoom' if pinching because #3530 - this.fire('zoom', data); - } - - // @event move: Event - // Fired repeatedly during any movement of the map, including pan and - // fly animations. - return this.fire('move', data); - }, - - _moveEnd: function (zoomChanged) { - // @event zoomend: Event - // Fired when the map has changed, after any animations. - if (zoomChanged) { - this.fire('zoomend'); - } - - // @event moveend: Event - // Fired when the center of the map stops changing (e.g. user stopped - // dragging the map). - return this.fire('moveend'); - }, - - _stop: function () { - cancelAnimFrame(this._flyToFrame); - if (this._panAnim) { - this._panAnim.stop(); - } - return this; - }, - - _rawPanBy: function (offset) { - setPosition(this._mapPane, this._getMapPanePos().subtract(offset)); - }, - - _getZoomSpan: function () { - return this.getMaxZoom() - this.getMinZoom(); - }, - - _panInsideMaxBounds: function () { - if (!this._enforcingBounds) { - this.panInsideBounds(this.options.maxBounds); - } - }, - - _checkIfLoaded: function () { - if (!this._loaded) { - throw new Error('Set map center and zoom first.'); - } - }, - - // DOM event handling - - // @section Interaction events - _initEvents: function (remove$$1) { - this._targets = {}; - this._targets[stamp(this._container)] = this; - - var onOff = remove$$1 ? off : on; - - // @event click: MouseEvent - // Fired when the user clicks (or taps) the map. - // @event dblclick: MouseEvent - // Fired when the user double-clicks (or double-taps) the map. - // @event mousedown: MouseEvent - // Fired when the user pushes the mouse button on the map. - // @event mouseup: MouseEvent - // Fired when the user releases the mouse button on the map. - // @event mouseover: MouseEvent - // Fired when the mouse enters the map. - // @event mouseout: MouseEvent - // Fired when the mouse leaves the map. - // @event mousemove: MouseEvent - // Fired while the mouse moves over the map. - // @event contextmenu: MouseEvent - // Fired when the user pushes the right mouse button on the map, prevents - // default browser context menu from showing if there are listeners on - // this event. Also fired on mobile when the user holds a single touch - // for a second (also called long press). - // @event keypress: KeyboardEvent - // Fired when the user presses a key from the keyboard while the map is focused. - onOff(this._container, 'click dblclick mousedown mouseup ' + - 'mouseover mouseout mousemove contextmenu keypress', this._handleDOMEvent, this); - - if (this.options.trackResize) { - onOff(window, 'resize', this._onResize, this); - } - - if (any3d && this.options.transform3DLimit) { - (remove$$1 ? this.off : this.on).call(this, 'moveend', this._onMoveEnd); - } - }, - - _onResize: function () { - cancelAnimFrame(this._resizeRequest); - this._resizeRequest = requestAnimFrame( - function () { this.invalidateSize({debounceMoveend: true}); }, this); - }, - - _onScroll: function () { - this._container.scrollTop = 0; - this._container.scrollLeft = 0; - }, - - _onMoveEnd: function () { - var pos = this._getMapPanePos(); - if (Math.max(Math.abs(pos.x), Math.abs(pos.y)) >= this.options.transform3DLimit) { - // https://bugzilla.mozilla.org/show_bug.cgi?id=1203873 but Webkit also have - // a pixel offset on very high values, see: http://jsfiddle.net/dg6r5hhb/ - this._resetView(this.getCenter(), this.getZoom()); - } - }, - - _findEventTargets: function (e, type) { - var targets = [], - target, - isHover = type === 'mouseout' || type === 'mouseover', - src = e.target || e.srcElement, - dragging = false; - - while (src) { - target = this._targets[stamp(src)]; - if (target && (type === 'click' || type === 'preclick') && !e._simulated && this._draggableMoved(target)) { - // Prevent firing click after you just dragged an object. - dragging = true; - break; - } - if (target && target.listens(type, true)) { - if (isHover && !isExternalTarget(src, e)) { break; } - targets.push(target); - if (isHover) { break; } - } - if (src === this._container) { break; } - src = src.parentNode; - } - if (!targets.length && !dragging && !isHover && isExternalTarget(src, e)) { - targets = [this]; - } - return targets; - }, - - _handleDOMEvent: function (e) { - if (!this._loaded || skipped(e)) { return; } - - var type = e.type; - - if (type === 'mousedown' || type === 'keypress') { - // prevents outline when clicking on keyboard-focusable element - preventOutline(e.target || e.srcElement); - } - - this._fireDOMEvent(e, type); - }, - - _mouseEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu'], - - _fireDOMEvent: function (e, type, targets) { - - if (e.type === 'click') { - // Fire a synthetic 'preclick' event which propagates up (mainly for closing popups). - // @event preclick: MouseEvent - // Fired before mouse click on the map (sometimes useful when you - // want something to happen on click before any existing click - // handlers start running). - var synth = extend({}, e); - synth.type = 'preclick'; - this._fireDOMEvent(synth, synth.type, targets); - } - - if (e._stopped) { return; } - - // Find the layer the event is propagating from and its parents. - targets = (targets || []).concat(this._findEventTargets(e, type)); - - if (!targets.length) { return; } - - var target = targets[0]; - if (type === 'contextmenu' && target.listens(type, true)) { - preventDefault(e); - } - - var data = { - originalEvent: e - }; - - if (e.type !== 'keypress') { - var isMarker = (target.options && 'icon' in target.options); - data.containerPoint = isMarker ? - this.latLngToContainerPoint(target.getLatLng()) : this.mouseEventToContainerPoint(e); - data.layerPoint = this.containerPointToLayerPoint(data.containerPoint); - data.latlng = isMarker ? target.getLatLng() : this.layerPointToLatLng(data.layerPoint); - } - - for (var i = 0; i < targets.length; i++) { - targets[i].fire(type, data, true); - if (data.originalEvent._stopped || - (targets[i].options.bubblingMouseEvents === false && indexOf(this._mouseEvents, type) !== -1)) { return; } - } - }, - - _draggableMoved: function (obj) { - obj = obj.dragging && obj.dragging.enabled() ? obj : this; - return (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved()); - }, - - _clearHandlers: function () { - for (var i = 0, len = this._handlers.length; i < len; i++) { - this._handlers[i].disable(); - } - }, - - // @section Other Methods - - // @method whenReady(fn: Function, context?: Object): this - // Runs the given function `fn` when the map gets initialized with - // a view (center and zoom) and at least one layer, or immediately - // if it's already initialized, optionally passing a function context. - whenReady: function (callback, context) { - if (this._loaded) { - callback.call(context || this, {target: this}); - } else { - this.on('load', callback, context); - } - return this; - }, - - - // private methods for getting map state - - _getMapPanePos: function () { - return getPosition(this._mapPane) || new Point(0, 0); - }, - - _moved: function () { - var pos = this._getMapPanePos(); - return pos && !pos.equals([0, 0]); - }, - - _getTopLeftPoint: function (center, zoom) { - var pixelOrigin = center && zoom !== undefined ? - this._getNewPixelOrigin(center, zoom) : - this.getPixelOrigin(); - return pixelOrigin.subtract(this._getMapPanePos()); - }, - - _getNewPixelOrigin: function (center, zoom) { - var viewHalf = this.getSize()._divideBy(2); - return this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round(); - }, - - _latLngToNewLayerPoint: function (latlng, zoom, center) { - var topLeft = this._getNewPixelOrigin(center, zoom); - return this.project(latlng, zoom)._subtract(topLeft); - }, - - _latLngBoundsToNewLayerBounds: function (latLngBounds, zoom, center) { - var topLeft = this._getNewPixelOrigin(center, zoom); - return toBounds([ - this.project(latLngBounds.getSouthWest(), zoom)._subtract(topLeft), - this.project(latLngBounds.getNorthWest(), zoom)._subtract(topLeft), - this.project(latLngBounds.getSouthEast(), zoom)._subtract(topLeft), - this.project(latLngBounds.getNorthEast(), zoom)._subtract(topLeft) - ]); - }, - - // layer point of the current center - _getCenterLayerPoint: function () { - return this.containerPointToLayerPoint(this.getSize()._divideBy(2)); - }, - - // offset of the specified place to the current center in pixels - _getCenterOffset: function (latlng) { - return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint()); - }, - - // adjust center for view to get inside bounds - _limitCenter: function (center, zoom, bounds) { - - if (!bounds) { return center; } - - var centerPoint = this.project(center, zoom), - viewHalf = this.getSize().divideBy(2), - viewBounds = new Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)), - offset = this._getBoundsOffset(viewBounds, bounds, zoom); - - // If offset is less than a pixel, ignore. - // This prevents unstable projections from getting into - // an infinite loop of tiny offsets. - if (offset.round().equals([0, 0])) { - return center; - } - - return this.unproject(centerPoint.add(offset), zoom); - }, - - // adjust offset for view to get inside bounds - _limitOffset: function (offset, bounds) { - if (!bounds) { return offset; } - - var viewBounds = this.getPixelBounds(), - newBounds = new Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset)); - - return offset.add(this._getBoundsOffset(newBounds, bounds)); - }, - - // returns offset needed for pxBounds to get inside maxBounds at a specified zoom - _getBoundsOffset: function (pxBounds, maxBounds, zoom) { - var projectedMaxBounds = toBounds( - this.project(maxBounds.getNorthEast(), zoom), - this.project(maxBounds.getSouthWest(), zoom) - ), - minOffset = projectedMaxBounds.min.subtract(pxBounds.min), - maxOffset = projectedMaxBounds.max.subtract(pxBounds.max), - - dx = this._rebound(minOffset.x, -maxOffset.x), - dy = this._rebound(minOffset.y, -maxOffset.y); - - return new Point(dx, dy); - }, - - _rebound: function (left, right) { - return left + right > 0 ? - Math.round(left - right) / 2 : - Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right)); - }, - - _limitZoom: function (zoom) { - var min = this.getMinZoom(), - max = this.getMaxZoom(), - snap = any3d ? this.options.zoomSnap : 1; - if (snap) { - zoom = Math.round(zoom / snap) * snap; - } - return Math.max(min, Math.min(max, zoom)); - }, - - _onPanTransitionStep: function () { - this.fire('move'); - }, - - _onPanTransitionEnd: function () { - removeClass(this._mapPane, 'leaflet-pan-anim'); - this.fire('moveend'); - }, - - _tryAnimatedPan: function (center, options) { - // difference between the new and current centers in pixels - var offset = this._getCenterOffset(center)._floor(); - - // don't animate too far unless animate: true specified in options - if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; } - - this.panBy(offset, options); - - return true; - }, - - _createAnimProxy: function () { - - var proxy = this._proxy = create$1('div', 'leaflet-proxy leaflet-zoom-animated'); - this._panes.mapPane.appendChild(proxy); - - this.on('zoomanim', function (e) { - var prop = TRANSFORM, - transform = this._proxy.style[prop]; - - setTransform(this._proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1)); - - // workaround for case when transform is the same and so transitionend event is not fired - if (transform === this._proxy.style[prop] && this._animatingZoom) { - this._onZoomTransitionEnd(); - } - }, this); - - this.on('load moveend', function () { - var c = this.getCenter(), - z = this.getZoom(); - setTransform(this._proxy, this.project(c, z), this.getZoomScale(z, 1)); - }, this); - - this._on('unload', this._destroyAnimProxy, this); - }, - - _destroyAnimProxy: function () { - remove(this._proxy); - delete this._proxy; - }, - - _catchTransitionEnd: function (e) { - if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) { - this._onZoomTransitionEnd(); - } - }, - - _nothingToAnimate: function () { - return !this._container.getElementsByClassName('leaflet-zoom-animated').length; - }, - - _tryAnimatedZoom: function (center, zoom, options) { - - if (this._animatingZoom) { return true; } - - options = options || {}; - - // don't animate if disabled, not supported or zoom difference is too large - if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() || - Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; } - - // offset is the pixel coords of the zoom origin relative to the current center - var scale = this.getZoomScale(zoom), - offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale); - - // don't animate if the zoom origin isn't within one screen from the current center, unless forced - if (options.animate !== true && !this.getSize().contains(offset)) { return false; } - - requestAnimFrame(function () { - this - ._moveStart(true) - ._animateZoom(center, zoom, true); - }, this); - - return true; - }, - - _animateZoom: function (center, zoom, startAnim, noUpdate) { - if (startAnim) { - this._animatingZoom = true; - - // remember what center/zoom to set after animation - this._animateToCenter = center; - this._animateToZoom = zoom; - - addClass(this._mapPane, 'leaflet-zoom-anim'); - } - - // @event zoomanim: ZoomAnimEvent - // Fired on every frame of a zoom animation - this.fire('zoomanim', { - center: center, - zoom: zoom, - noUpdate: noUpdate - }); - - // Work around webkit not firing 'transitionend', see https://github.com/Leaflet/Leaflet/issues/3689, 2693 - setTimeout(bind(this._onZoomTransitionEnd, this), 250); - }, - - _onZoomTransitionEnd: function () { - if (!this._animatingZoom) { return; } - - removeClass(this._mapPane, 'leaflet-zoom-anim'); - - this._animatingZoom = false; - - this._move(this._animateToCenter, this._animateToZoom); - - // This anim frame should prevent an obscure iOS webkit tile loading race condition. - requestAnimFrame(function () { - this._moveEnd(true); - }, this); - } -}); - -// @section - -// @factory L.map(id: String, options?: Map options) -// Instantiates a map object given the DOM ID of a `
` element -// and optionally an object literal with `Map options`. -// -// @alternative -// @factory L.map(el: HTMLElement, options?: Map options) -// Instantiates a map object given an instance of a `
` HTML element -// and optionally an object literal with `Map options`. -function createMap(id, options) { - return new Map(id, options); -} - -/* - * @class Control - * @aka L.Control - * @inherits Class - * - * L.Control is a base class for implementing map controls. Handles positioning. - * All other controls extend from this class. - */ - -var Control = Class.extend({ - // @section - // @aka Control options - options: { - // @option position: String = 'topright' - // The position of the control (one of the map corners). Possible values are `'topleft'`, - // `'topright'`, `'bottomleft'` or `'bottomright'` - position: 'topright' - }, - - initialize: function (options) { - setOptions(this, options); - }, - - /* @section - * Classes extending L.Control will inherit the following methods: - * - * @method getPosition: string - * Returns the position of the control. - */ - getPosition: function () { - return this.options.position; - }, - - // @method setPosition(position: string): this - // Sets the position of the control. - setPosition: function (position) { - var map = this._map; - - if (map) { - map.removeControl(this); - } - - this.options.position = position; - - if (map) { - map.addControl(this); - } - - return this; - }, - - // @method getContainer: HTMLElement - // Returns the HTMLElement that contains the control. - getContainer: function () { - return this._container; - }, - - // @method addTo(map: Map): this - // Adds the control to the given map. - addTo: function (map) { - this.remove(); - this._map = map; - - var container = this._container = this.onAdd(map), - pos = this.getPosition(), - corner = map._controlCorners[pos]; - - addClass(container, 'leaflet-control'); - - if (pos.indexOf('bottom') !== -1) { - corner.insertBefore(container, corner.firstChild); - } else { - corner.appendChild(container); - } - - return this; - }, - - // @method remove: this - // Removes the control from the map it is currently active on. - remove: function () { - if (!this._map) { - return this; - } - - remove(this._container); - - if (this.onRemove) { - this.onRemove(this._map); - } - - this._map = null; - - return this; - }, - - _refocusOnMap: function (e) { - // if map exists and event is not a keyboard event - if (this._map && e && e.screenX > 0 && e.screenY > 0) { - this._map.getContainer().focus(); - } - } -}); - -var control = function (options) { - return new Control(options); -}; - -/* @section Extension methods - * @uninheritable - * - * Every control should extend from `L.Control` and (re-)implement the following methods. - * - * @method onAdd(map: Map): HTMLElement - * Should return the container DOM element for the control and add listeners on relevant map events. Called on [`control.addTo(map)`](#control-addTo). - * - * @method onRemove(map: Map) - * Optional method. Should contain all clean up code that removes the listeners previously added in [`onAdd`](#control-onadd). Called on [`control.remove()`](#control-remove). - */ - -/* @namespace Map - * @section Methods for Layers and Controls - */ -Map.include({ - // @method addControl(control: Control): this - // Adds the given control to the map - addControl: function (control) { - control.addTo(this); - return this; - }, - - // @method removeControl(control: Control): this - // Removes the given control from the map - removeControl: function (control) { - control.remove(); - return this; - }, - - _initControlPos: function () { - var corners = this._controlCorners = {}, - l = 'leaflet-', - container = this._controlContainer = - create$1('div', l + 'control-container', this._container); - - function createCorner(vSide, hSide) { - var className = l + vSide + ' ' + l + hSide; - - corners[vSide + hSide] = create$1('div', className, container); - } - - createCorner('top', 'left'); - createCorner('top', 'right'); - createCorner('bottom', 'left'); - createCorner('bottom', 'right'); - }, - - _clearControlPos: function () { - for (var i in this._controlCorners) { - remove(this._controlCorners[i]); - } - remove(this._controlContainer); - delete this._controlCorners; - delete this._controlContainer; - } -}); - -/* - * @class Control.Layers - * @aka L.Control.Layers - * @inherits Control - * - * The layers control gives users the ability to switch between different base layers and switch overlays on/off (check out the [detailed example](http://leafletjs.com/examples/layers-control/)). Extends `Control`. - * - * @example - * - * ```js - * var baseLayers = { - * "Mapbox": mapbox, - * "OpenStreetMap": osm - * }; - * - * var overlays = { - * "Marker": marker, - * "Roads": roadsLayer - * }; - * - * L.control.layers(baseLayers, overlays).addTo(map); - * ``` - * - * The `baseLayers` and `overlays` parameters are object literals with layer names as keys and `Layer` objects as values: - * - * ```js - * { - * "": layer1, - * "": layer2 - * } - * ``` - * - * The layer names can contain HTML, which allows you to add additional styling to the items: - * - * ```js - * {" My Layer": myLayer} - * ``` - */ - -var Layers = Control.extend({ - // @section - // @aka Control.Layers options - options: { - // @option collapsed: Boolean = true - // If `true`, the control will be collapsed into an icon and expanded on mouse hover or touch. - collapsed: true, - position: 'topright', - - // @option autoZIndex: Boolean = true - // If `true`, the control will assign zIndexes in increasing order to all of its layers so that the order is preserved when switching them on/off. - autoZIndex: true, - - // @option hideSingleBase: Boolean = false - // If `true`, the base layers in the control will be hidden when there is only one. - hideSingleBase: false, - - // @option sortLayers: Boolean = false - // Whether to sort the layers. When `false`, layers will keep the order - // in which they were added to the control. - sortLayers: false, - - // @option sortFunction: Function = * - // A [compare function](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/sort) - // that will be used for sorting the layers, when `sortLayers` is `true`. - // The function receives both the `L.Layer` instances and their names, as in - // `sortFunction(layerA, layerB, nameA, nameB)`. - // By default, it sorts layers alphabetically by their name. - sortFunction: function (layerA, layerB, nameA, nameB) { - return nameA < nameB ? -1 : (nameB < nameA ? 1 : 0); - } - }, - - initialize: function (baseLayers, overlays, options) { - setOptions(this, options); - - this._layerControlInputs = []; - this._layers = []; - this._lastZIndex = 0; - this._handlingClick = false; - - for (var i in baseLayers) { - this._addLayer(baseLayers[i], i); - } - - for (i in overlays) { - this._addLayer(overlays[i], i, true); - } - }, - - onAdd: function (map) { - this._initLayout(); - this._update(); - - this._map = map; - map.on('zoomend', this._checkDisabledLayers, this); - - for (var i = 0; i < this._layers.length; i++) { - this._layers[i].layer.on('add remove', this._onLayerChange, this); - } - - return this._container; - }, - - addTo: function (map) { - Control.prototype.addTo.call(this, map); - // Trigger expand after Layers Control has been inserted into DOM so that is now has an actual height. - return this._expandIfNotCollapsed(); - }, - - onRemove: function () { - this._map.off('zoomend', this._checkDisabledLayers, this); - - for (var i = 0; i < this._layers.length; i++) { - this._layers[i].layer.off('add remove', this._onLayerChange, this); - } - }, - - // @method addBaseLayer(layer: Layer, name: String): this - // Adds a base layer (radio button entry) with the given name to the control. - addBaseLayer: function (layer, name) { - this._addLayer(layer, name); - return (this._map) ? this._update() : this; - }, - - // @method addOverlay(layer: Layer, name: String): this - // Adds an overlay (checkbox entry) with the given name to the control. - addOverlay: function (layer, name) { - this._addLayer(layer, name, true); - return (this._map) ? this._update() : this; - }, - - // @method removeLayer(layer: Layer): this - // Remove the given layer from the control. - removeLayer: function (layer) { - layer.off('add remove', this._onLayerChange, this); - - var obj = this._getLayer(stamp(layer)); - if (obj) { - this._layers.splice(this._layers.indexOf(obj), 1); - } - return (this._map) ? this._update() : this; - }, - - // @method expand(): this - // Expand the control container if collapsed. - expand: function () { - addClass(this._container, 'leaflet-control-layers-expanded'); - this._form.style.height = null; - var acceptableHeight = this._map.getSize().y - (this._container.offsetTop + 50); - if (acceptableHeight < this._form.clientHeight) { - addClass(this._form, 'leaflet-control-layers-scrollbar'); - this._form.style.height = acceptableHeight + 'px'; - } else { - removeClass(this._form, 'leaflet-control-layers-scrollbar'); - } - this._checkDisabledLayers(); - return this; - }, - - // @method collapse(): this - // Collapse the control container if expanded. - collapse: function () { - removeClass(this._container, 'leaflet-control-layers-expanded'); - return this; - }, - - _initLayout: function () { - var className = 'leaflet-control-layers', - container = this._container = create$1('div', className), - collapsed = this.options.collapsed; - - // makes this work on IE touch devices by stopping it from firing a mouseout event when the touch is released - container.setAttribute('aria-haspopup', true); - - disableClickPropagation(container); - disableScrollPropagation(container); - - var form = this._form = create$1('form', className + '-list'); - - if (collapsed) { - this._map.on('click', this.collapse, this); - - if (!android) { - on(container, { - mouseenter: this.expand, - mouseleave: this.collapse - }, this); - } - } - - var link = this._layersLink = create$1('a', className + '-toggle', container); - link.href = '#'; - link.title = 'Layers'; - - if (touch) { - on(link, 'click', stop); - on(link, 'click', this.expand, this); - } else { - on(link, 'focus', this.expand, this); - } - - if (!collapsed) { - this.expand(); - } - - this._baseLayersList = create$1('div', className + '-base', form); - this._separator = create$1('div', className + '-separator', form); - this._overlaysList = create$1('div', className + '-overlays', form); - - container.appendChild(form); - }, - - _getLayer: function (id) { - for (var i = 0; i < this._layers.length; i++) { - - if (this._layers[i] && stamp(this._layers[i].layer) === id) { - return this._layers[i]; - } - } - }, - - _addLayer: function (layer, name, overlay) { - if (this._map) { - layer.on('add remove', this._onLayerChange, this); - } - - this._layers.push({ - layer: layer, - name: name, - overlay: overlay - }); - - if (this.options.sortLayers) { - this._layers.sort(bind(function (a, b) { - return this.options.sortFunction(a.layer, b.layer, a.name, b.name); - }, this)); - } - - if (this.options.autoZIndex && layer.setZIndex) { - this._lastZIndex++; - layer.setZIndex(this._lastZIndex); - } - - this._expandIfNotCollapsed(); - }, - - _update: function () { - if (!this._container) { return this; } - - empty(this._baseLayersList); - empty(this._overlaysList); - - this._layerControlInputs = []; - var baseLayersPresent, overlaysPresent, i, obj, baseLayersCount = 0; - - for (i = 0; i < this._layers.length; i++) { - obj = this._layers[i]; - this._addItem(obj); - overlaysPresent = overlaysPresent || obj.overlay; - baseLayersPresent = baseLayersPresent || !obj.overlay; - baseLayersCount += !obj.overlay ? 1 : 0; - } - - // Hide base layers section if there's only one layer. - if (this.options.hideSingleBase) { - baseLayersPresent = baseLayersPresent && baseLayersCount > 1; - this._baseLayersList.style.display = baseLayersPresent ? '' : 'none'; - } - - this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none'; - - return this; - }, - - _onLayerChange: function (e) { - if (!this._handlingClick) { - this._update(); - } - - var obj = this._getLayer(stamp(e.target)); - - // @namespace Map - // @section Layer events - // @event baselayerchange: LayersControlEvent - // Fired when the base layer is changed through the [layer control](#control-layers). - // @event overlayadd: LayersControlEvent - // Fired when an overlay is selected through the [layer control](#control-layers). - // @event overlayremove: LayersControlEvent - // Fired when an overlay is deselected through the [layer control](#control-layers). - // @namespace Control.Layers - var type = obj.overlay ? - (e.type === 'add' ? 'overlayadd' : 'overlayremove') : - (e.type === 'add' ? 'baselayerchange' : null); - - if (type) { - this._map.fire(type, obj); - } - }, - - // IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe) - _createRadioElement: function (name, checked) { - - var radioHtml = ''; - - var radioFragment = document.createElement('div'); - radioFragment.innerHTML = radioHtml; - - return radioFragment.firstChild; - }, - - _addItem: function (obj) { - var label = document.createElement('label'), - checked = this._map.hasLayer(obj.layer), - input; - - if (obj.overlay) { - input = document.createElement('input'); - input.type = 'checkbox'; - input.className = 'leaflet-control-layers-selector'; - input.defaultChecked = checked; - } else { - input = this._createRadioElement('leaflet-base-layers', checked); - } - - this._layerControlInputs.push(input); - input.layerId = stamp(obj.layer); - - on(input, 'click', this._onInputClick, this); - - var name = document.createElement('span'); - name.innerHTML = ' ' + obj.name; - - // Helps from preventing layer control flicker when checkboxes are disabled - // https://github.com/Leaflet/Leaflet/issues/2771 - var holder = document.createElement('div'); - - label.appendChild(holder); - holder.appendChild(input); - holder.appendChild(name); - - var container = obj.overlay ? this._overlaysList : this._baseLayersList; - container.appendChild(label); - - this._checkDisabledLayers(); - return label; - }, - - _onInputClick: function () { - var inputs = this._layerControlInputs, - input, layer; - var addedLayers = [], - removedLayers = []; - - this._handlingClick = true; - - for (var i = inputs.length - 1; i >= 0; i--) { - input = inputs[i]; - layer = this._getLayer(input.layerId).layer; - - if (input.checked) { - addedLayers.push(layer); - } else if (!input.checked) { - removedLayers.push(layer); - } - } - - // Bugfix issue 2318: Should remove all old layers before readding new ones - for (i = 0; i < removedLayers.length; i++) { - if (this._map.hasLayer(removedLayers[i])) { - this._map.removeLayer(removedLayers[i]); - } - } - for (i = 0; i < addedLayers.length; i++) { - if (!this._map.hasLayer(addedLayers[i])) { - this._map.addLayer(addedLayers[i]); - } - } - - this._handlingClick = false; - - this._refocusOnMap(); - }, - - _checkDisabledLayers: function () { - var inputs = this._layerControlInputs, - input, - layer, - zoom = this._map.getZoom(); - - for (var i = inputs.length - 1; i >= 0; i--) { - input = inputs[i]; - layer = this._getLayer(input.layerId).layer; - input.disabled = (layer.options.minZoom !== undefined && zoom < layer.options.minZoom) || - (layer.options.maxZoom !== undefined && zoom > layer.options.maxZoom); - - } - }, - - _expandIfNotCollapsed: function () { - if (this._map && !this.options.collapsed) { - this.expand(); - } - return this; - }, - - _expand: function () { - // Backward compatibility, remove me in 1.1. - return this.expand(); - }, - - _collapse: function () { - // Backward compatibility, remove me in 1.1. - return this.collapse(); - } - -}); - - -// @factory L.control.layers(baselayers?: Object, overlays?: Object, options?: Control.Layers options) -// Creates an attribution control with the given layers. Base layers will be switched with radio buttons, while overlays will be switched with checkboxes. Note that all base layers should be passed in the base layers object, but only one should be added to the map during map instantiation. -var layers = function (baseLayers, overlays, options) { - return new Layers(baseLayers, overlays, options); -}; - -/* - * @class Control.Zoom - * @aka L.Control.Zoom - * @inherits Control - * - * A basic zoom control with two buttons (zoom in and zoom out). It is put on the map by default unless you set its [`zoomControl` option](#map-zoomcontrol) to `false`. Extends `Control`. - */ - -var Zoom = Control.extend({ - // @section - // @aka Control.Zoom options - options: { - position: 'topleft', - - // @option zoomInText: String = '+' - // The text set on the 'zoom in' button. - zoomInText: '+', - - // @option zoomInTitle: String = 'Zoom in' - // The title set on the 'zoom in' button. - zoomInTitle: 'Zoom in', - - // @option zoomOutText: String = '−' - // The text set on the 'zoom out' button. - zoomOutText: '−', - - // @option zoomOutTitle: String = 'Zoom out' - // The title set on the 'zoom out' button. - zoomOutTitle: 'Zoom out' - }, - - onAdd: function (map) { - var zoomName = 'leaflet-control-zoom', - container = create$1('div', zoomName + ' leaflet-bar'), - options = this.options; - - this._zoomInButton = this._createButton(options.zoomInText, options.zoomInTitle, - zoomName + '-in', container, this._zoomIn); - this._zoomOutButton = this._createButton(options.zoomOutText, options.zoomOutTitle, - zoomName + '-out', container, this._zoomOut); - - this._updateDisabled(); - map.on('zoomend zoomlevelschange', this._updateDisabled, this); - - return container; - }, - - onRemove: function (map) { - map.off('zoomend zoomlevelschange', this._updateDisabled, this); - }, - - disable: function () { - this._disabled = true; - this._updateDisabled(); - return this; - }, - - enable: function () { - this._disabled = false; - this._updateDisabled(); - return this; - }, - - _zoomIn: function (e) { - if (!this._disabled && this._map._zoom < this._map.getMaxZoom()) { - this._map.zoomIn(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1)); - } - }, - - _zoomOut: function (e) { - if (!this._disabled && this._map._zoom > this._map.getMinZoom()) { - this._map.zoomOut(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1)); - } - }, - - _createButton: function (html, title, className, container, fn) { - var link = create$1('a', className, container); - link.innerHTML = html; - link.href = '#'; - link.title = title; - - /* - * Will force screen readers like VoiceOver to read this as "Zoom in - button" - */ - link.setAttribute('role', 'button'); - link.setAttribute('aria-label', title); - - disableClickPropagation(link); - on(link, 'click', stop); - on(link, 'click', fn, this); - on(link, 'click', this._refocusOnMap, this); - - return link; - }, - - _updateDisabled: function () { - var map = this._map, - className = 'leaflet-disabled'; - - removeClass(this._zoomInButton, className); - removeClass(this._zoomOutButton, className); - - if (this._disabled || map._zoom === map.getMinZoom()) { - addClass(this._zoomOutButton, className); - } - if (this._disabled || map._zoom === map.getMaxZoom()) { - addClass(this._zoomInButton, className); - } - } -}); - -// @namespace Map -// @section Control options -// @option zoomControl: Boolean = true -// Whether a [zoom control](#control-zoom) is added to the map by default. -Map.mergeOptions({ - zoomControl: true -}); - -Map.addInitHook(function () { - if (this.options.zoomControl) { - this.zoomControl = new Zoom(); - this.addControl(this.zoomControl); - } -}); - -// @namespace Control.Zoom -// @factory L.control.zoom(options: Control.Zoom options) -// Creates a zoom control -var zoom = function (options) { - return new Zoom(options); -}; - -/* - * @class Control.Scale - * @aka L.Control.Scale - * @inherits Control - * - * A simple scale control that shows the scale of the current center of screen in metric (m/km) and imperial (mi/ft) systems. Extends `Control`. - * - * @example - * - * ```js - * L.control.scale().addTo(map); - * ``` - */ - -var Scale = Control.extend({ - // @section - // @aka Control.Scale options - options: { - position: 'bottomleft', - - // @option maxWidth: Number = 100 - // Maximum width of the control in pixels. The width is set dynamically to show round values (e.g. 100, 200, 500). - maxWidth: 100, - - // @option metric: Boolean = True - // Whether to show the metric scale line (m/km). - metric: true, - - // @option imperial: Boolean = True - // Whether to show the imperial scale line (mi/ft). - imperial: true - - // @option updateWhenIdle: Boolean = false - // If `true`, the control is updated on [`moveend`](#map-moveend), otherwise it's always up-to-date (updated on [`move`](#map-move)). - }, - - onAdd: function (map) { - var className = 'leaflet-control-scale', - container = create$1('div', className), - options = this.options; - - this._addScales(options, className + '-line', container); - - map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this); - map.whenReady(this._update, this); - - return container; - }, - - onRemove: function (map) { - map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this); - }, - - _addScales: function (options, className, container) { - if (options.metric) { - this._mScale = create$1('div', className, container); - } - if (options.imperial) { - this._iScale = create$1('div', className, container); - } - }, - - _update: function () { - var map = this._map, - y = map.getSize().y / 2; - - var maxMeters = map.distance( - map.containerPointToLatLng([0, y]), - map.containerPointToLatLng([this.options.maxWidth, y])); - - this._updateScales(maxMeters); - }, - - _updateScales: function (maxMeters) { - if (this.options.metric && maxMeters) { - this._updateMetric(maxMeters); - } - if (this.options.imperial && maxMeters) { - this._updateImperial(maxMeters); - } - }, - - _updateMetric: function (maxMeters) { - var meters = this._getRoundNum(maxMeters), - label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km'; - - this._updateScale(this._mScale, label, meters / maxMeters); - }, - - _updateImperial: function (maxMeters) { - var maxFeet = maxMeters * 3.2808399, - maxMiles, miles, feet; - - if (maxFeet > 5280) { - maxMiles = maxFeet / 5280; - miles = this._getRoundNum(maxMiles); - this._updateScale(this._iScale, miles + ' mi', miles / maxMiles); - - } else { - feet = this._getRoundNum(maxFeet); - this._updateScale(this._iScale, feet + ' ft', feet / maxFeet); - } - }, - - _updateScale: function (scale, text, ratio) { - scale.style.width = Math.round(this.options.maxWidth * ratio) + 'px'; - scale.innerHTML = text; - }, - - _getRoundNum: function (num) { - var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1), - d = num / pow10; - - d = d >= 10 ? 10 : - d >= 5 ? 5 : - d >= 3 ? 3 : - d >= 2 ? 2 : 1; - - return pow10 * d; - } -}); - - -// @factory L.control.scale(options?: Control.Scale options) -// Creates an scale control with the given options. -var scale = function (options) { - return new Scale(options); -}; - -/* - * @class Control.Attribution - * @aka L.Control.Attribution - * @inherits Control - * - * The attribution control allows you to display attribution data in a small text box on a map. It is put on the map by default unless you set its [`attributionControl` option](#map-attributioncontrol) to `false`, and it fetches attribution texts from layers with the [`getAttribution` method](#layer-getattribution) automatically. Extends Control. - */ - -var Attribution = Control.extend({ - // @section - // @aka Control.Attribution options - options: { - position: 'bottomright', - - // @option prefix: String = 'Leaflet' - // The HTML text shown before the attributions. Pass `false` to disable. - prefix: 'Leaflet' - }, - - initialize: function (options) { - setOptions(this, options); - - this._attributions = {}; - }, - - onAdd: function (map) { - map.attributionControl = this; - this._container = create$1('div', 'leaflet-control-attribution'); - disableClickPropagation(this._container); - - // TODO ugly, refactor - for (var i in map._layers) { - if (map._layers[i].getAttribution) { - this.addAttribution(map._layers[i].getAttribution()); - } - } - - this._update(); - - return this._container; - }, - - // @method setPrefix(prefix: String): this - // Sets the text before the attributions. - setPrefix: function (prefix) { - this.options.prefix = prefix; - this._update(); - return this; - }, - - // @method addAttribution(text: String): this - // Adds an attribution text (e.g. `'Vector data © Mapbox'`). - addAttribution: function (text) { - if (!text) { return this; } - - if (!this._attributions[text]) { - this._attributions[text] = 0; - } - this._attributions[text]++; - - this._update(); - - return this; - }, - - // @method removeAttribution(text: String): this - // Removes an attribution text. - removeAttribution: function (text) { - if (!text) { return this; } - - if (this._attributions[text]) { - this._attributions[text]--; - this._update(); - } - - return this; - }, - - _update: function () { - if (!this._map) { return; } - - var attribs = []; - - for (var i in this._attributions) { - if (this._attributions[i]) { - attribs.push(i); - } - } - - var prefixAndAttribs = []; - - if (this.options.prefix) { - prefixAndAttribs.push(this.options.prefix); - } - if (attribs.length) { - prefixAndAttribs.push(attribs.join(', ')); - } - - this._container.innerHTML = prefixAndAttribs.join(' | '); - } -}); - -// @namespace Map -// @section Control options -// @option attributionControl: Boolean = true -// Whether a [attribution control](#control-attribution) is added to the map by default. -Map.mergeOptions({ - attributionControl: true -}); - -Map.addInitHook(function () { - if (this.options.attributionControl) { - new Attribution().addTo(this); - } -}); - -// @namespace Control.Attribution -// @factory L.control.attribution(options: Control.Attribution options) -// Creates an attribution control. -var attribution = function (options) { - return new Attribution(options); -}; - -Control.Layers = Layers; -Control.Zoom = Zoom; -Control.Scale = Scale; -Control.Attribution = Attribution; - -control.layers = layers; -control.zoom = zoom; -control.scale = scale; -control.attribution = attribution; - -/* - L.Handler is a base class for handler classes that are used internally to inject - interaction features like dragging to classes like Map and Marker. -*/ - -// @class Handler -// @aka L.Handler -// Abstract class for map interaction handlers - -var Handler = Class.extend({ - initialize: function (map) { - this._map = map; - }, - - // @method enable(): this - // Enables the handler - enable: function () { - if (this._enabled) { return this; } - - this._enabled = true; - this.addHooks(); - return this; - }, - - // @method disable(): this - // Disables the handler - disable: function () { - if (!this._enabled) { return this; } - - this._enabled = false; - this.removeHooks(); - return this; - }, - - // @method enabled(): Boolean - // Returns `true` if the handler is enabled - enabled: function () { - return !!this._enabled; - } - - // @section Extension methods - // Classes inheriting from `Handler` must implement the two following methods: - // @method addHooks() - // Called when the handler is enabled, should add event hooks. - // @method removeHooks() - // Called when the handler is disabled, should remove the event hooks added previously. -}); - -var Mixin = {Events: Events}; - -/* - * @class Draggable - * @aka L.Draggable - * @inherits Evented - * - * A class for making DOM elements draggable (including touch support). - * Used internally for map and marker dragging. Only works for elements - * that were positioned with [`L.DomUtil.setPosition`](#domutil-setposition). - * - * @example - * ```js - * var draggable = new L.Draggable(elementToDrag); - * draggable.enable(); - * ``` - */ - -var START = touch ? 'touchstart mousedown' : 'mousedown'; -var END = { - mousedown: 'mouseup', - touchstart: 'touchend', - pointerdown: 'touchend', - MSPointerDown: 'touchend' -}; -var MOVE = { - mousedown: 'mousemove', - touchstart: 'touchmove', - pointerdown: 'touchmove', - MSPointerDown: 'touchmove' -}; - - -var Draggable = Evented.extend({ - - options: { - // @section - // @aka Draggable options - // @option clickTolerance: Number = 3 - // The max number of pixels a user can shift the mouse pointer during a click - // for it to be considered a valid click (as opposed to a mouse drag). - clickTolerance: 3 - }, - - // @constructor L.Draggable(el: HTMLElement, dragHandle?: HTMLElement, preventOutline?: Boolean, options?: Draggable options) - // Creates a `Draggable` object for moving `el` when you start dragging the `dragHandle` element (equals `el` itself by default). - initialize: function (element, dragStartTarget, preventOutline$$1, options) { - setOptions(this, options); - - this._element = element; - this._dragStartTarget = dragStartTarget || element; - this._preventOutline = preventOutline$$1; - }, - - // @method enable() - // Enables the dragging ability - enable: function () { - if (this._enabled) { return; } - - on(this._dragStartTarget, START, this._onDown, this); - - this._enabled = true; - }, - - // @method disable() - // Disables the dragging ability - disable: function () { - if (!this._enabled) { return; } - - // If we're currently dragging this draggable, - // disabling it counts as first ending the drag. - if (Draggable._dragging === this) { - this.finishDrag(); - } - - off(this._dragStartTarget, START, this._onDown, this); - - this._enabled = false; - this._moved = false; - }, - - _onDown: function (e) { - // Ignore simulated events, since we handle both touch and - // mouse explicitly; otherwise we risk getting duplicates of - // touch events, see #4315. - // Also ignore the event if disabled; this happens in IE11 - // under some circumstances, see #3666. - if (e._simulated || !this._enabled) { return; } - - this._moved = false; - - if (hasClass(this._element, 'leaflet-zoom-anim')) { return; } - - if (Draggable._dragging || e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; } - Draggable._dragging = this; // Prevent dragging multiple objects at once. - - if (this._preventOutline) { - preventOutline(this._element); - } - - disableImageDrag(); - disableTextSelection(); - - if (this._moving) { return; } - - // @event down: Event - // Fired when a drag is about to start. - this.fire('down'); - - var first = e.touches ? e.touches[0] : e; - - this._startPoint = new Point(first.clientX, first.clientY); - - on(document, MOVE[e.type], this._onMove, this); - on(document, END[e.type], this._onUp, this); - }, - - _onMove: function (e) { - // Ignore simulated events, since we handle both touch and - // mouse explicitly; otherwise we risk getting duplicates of - // touch events, see #4315. - // Also ignore the event if disabled; this happens in IE11 - // under some circumstances, see #3666. - if (e._simulated || !this._enabled) { return; } - - if (e.touches && e.touches.length > 1) { - this._moved = true; - return; - } - - var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e), - newPoint = new Point(first.clientX, first.clientY), - offset = newPoint.subtract(this._startPoint); - - if (!offset.x && !offset.y) { return; } - if (Math.abs(offset.x) + Math.abs(offset.y) < this.options.clickTolerance) { return; } - - preventDefault(e); - - if (!this._moved) { - // @event dragstart: Event - // Fired when a drag starts - this.fire('dragstart'); - - this._moved = true; - this._startPos = getPosition(this._element).subtract(offset); - - addClass(document.body, 'leaflet-dragging'); - - this._lastTarget = e.target || e.srcElement; - // IE and Edge do not give the element, so fetch it - // if necessary - if ((window.SVGElementInstance) && (this._lastTarget instanceof SVGElementInstance)) { - this._lastTarget = this._lastTarget.correspondingUseElement; - } - addClass(this._lastTarget, 'leaflet-drag-target'); - } - - this._newPos = this._startPos.add(offset); - this._moving = true; - - cancelAnimFrame(this._animRequest); - this._lastEvent = e; - this._animRequest = requestAnimFrame(this._updatePosition, this, true); - }, - - _updatePosition: function () { - var e = {originalEvent: this._lastEvent}; - - // @event predrag: Event - // Fired continuously during dragging *before* each corresponding - // update of the element's position. - this.fire('predrag', e); - setPosition(this._element, this._newPos); - - // @event drag: Event - // Fired continuously during dragging. - this.fire('drag', e); - }, - - _onUp: function (e) { - // Ignore simulated events, since we handle both touch and - // mouse explicitly; otherwise we risk getting duplicates of - // touch events, see #4315. - // Also ignore the event if disabled; this happens in IE11 - // under some circumstances, see #3666. - if (e._simulated || !this._enabled) { return; } - this.finishDrag(); - }, - - finishDrag: function () { - removeClass(document.body, 'leaflet-dragging'); - - if (this._lastTarget) { - removeClass(this._lastTarget, 'leaflet-drag-target'); - this._lastTarget = null; - } - - for (var i in MOVE) { - off(document, MOVE[i], this._onMove, this); - off(document, END[i], this._onUp, this); - } - - enableImageDrag(); - enableTextSelection(); - - if (this._moved && this._moving) { - // ensure drag is not fired after dragend - cancelAnimFrame(this._animRequest); - - // @event dragend: DragEndEvent - // Fired when the drag ends. - this.fire('dragend', { - distance: this._newPos.distanceTo(this._startPos) - }); - } - - this._moving = false; - Draggable._dragging = false; - } - -}); - -/* - * @namespace LineUtil - * - * Various utility functions for polyine points processing, used by Leaflet internally to make polylines lightning-fast. - */ - -// Simplify polyline with vertex reduction and Douglas-Peucker simplification. -// Improves rendering performance dramatically by lessening the number of points to draw. - -// @function simplify(points: Point[], tolerance: Number): Point[] -// Dramatically reduces the number of points in a polyline while retaining -// its shape and returns a new array of simplified points, using the -// [Douglas-Peucker algorithm](http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm). -// Used for a huge performance boost when processing/displaying Leaflet polylines for -// each zoom level and also reducing visual noise. tolerance affects the amount of -// simplification (lesser value means higher quality but slower and with more points). -// Also released as a separated micro-library [Simplify.js](http://mourner.github.com/simplify-js/). -function simplify(points, tolerance) { - if (!tolerance || !points.length) { - return points.slice(); - } - - var sqTolerance = tolerance * tolerance; - - // stage 1: vertex reduction - points = _reducePoints(points, sqTolerance); - - // stage 2: Douglas-Peucker simplification - points = _simplifyDP(points, sqTolerance); - - return points; -} - -// @function pointToSegmentDistance(p: Point, p1: Point, p2: Point): Number -// Returns the distance between point `p` and segment `p1` to `p2`. -function pointToSegmentDistance(p, p1, p2) { - return Math.sqrt(_sqClosestPointOnSegment(p, p1, p2, true)); -} - -// @function closestPointOnSegment(p: Point, p1: Point, p2: Point): Number -// Returns the closest point from a point `p` on a segment `p1` to `p2`. -function closestPointOnSegment(p, p1, p2) { - return _sqClosestPointOnSegment(p, p1, p2); -} - -// Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm -function _simplifyDP(points, sqTolerance) { - - var len = points.length, - ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array, - markers = new ArrayConstructor(len); - - markers[0] = markers[len - 1] = 1; - - _simplifyDPStep(points, markers, sqTolerance, 0, len - 1); - - var i, - newPoints = []; - - for (i = 0; i < len; i++) { - if (markers[i]) { - newPoints.push(points[i]); - } - } - - return newPoints; -} - -function _simplifyDPStep(points, markers, sqTolerance, first, last) { - - var maxSqDist = 0, - index, i, sqDist; - - for (i = first + 1; i <= last - 1; i++) { - sqDist = _sqClosestPointOnSegment(points[i], points[first], points[last], true); - - if (sqDist > maxSqDist) { - index = i; - maxSqDist = sqDist; - } - } - - if (maxSqDist > sqTolerance) { - markers[index] = 1; - - _simplifyDPStep(points, markers, sqTolerance, first, index); - _simplifyDPStep(points, markers, sqTolerance, index, last); - } -} - -// reduce points that are too close to each other to a single point -function _reducePoints(points, sqTolerance) { - var reducedPoints = [points[0]]; - - for (var i = 1, prev = 0, len = points.length; i < len; i++) { - if (_sqDist(points[i], points[prev]) > sqTolerance) { - reducedPoints.push(points[i]); - prev = i; - } - } - if (prev < len - 1) { - reducedPoints.push(points[len - 1]); - } - return reducedPoints; -} - -var _lastCode; - -// @function clipSegment(a: Point, b: Point, bounds: Bounds, useLastCode?: Boolean, round?: Boolean): Point[]|Boolean -// Clips the segment a to b by rectangular bounds with the -// [Cohen-Sutherland algorithm](https://en.wikipedia.org/wiki/Cohen%E2%80%93Sutherland_algorithm) -// (modifying the segment points directly!). Used by Leaflet to only show polyline -// points that are on the screen or near, increasing performance. -function clipSegment(a, b, bounds, useLastCode, round) { - var codeA = useLastCode ? _lastCode : _getBitCode(a, bounds), - codeB = _getBitCode(b, bounds), - - codeOut, p, newCode; - - // save 2nd code to avoid calculating it on the next segment - _lastCode = codeB; - - while (true) { - // if a,b is inside the clip window (trivial accept) - if (!(codeA | codeB)) { - return [a, b]; - } - - // if a,b is outside the clip window (trivial reject) - if (codeA & codeB) { - return false; - } - - // other cases - codeOut = codeA || codeB; - p = _getEdgeIntersection(a, b, codeOut, bounds, round); - newCode = _getBitCode(p, bounds); - - if (codeOut === codeA) { - a = p; - codeA = newCode; - } else { - b = p; - codeB = newCode; - } - } -} - -function _getEdgeIntersection(a, b, code, bounds, round) { - var dx = b.x - a.x, - dy = b.y - a.y, - min = bounds.min, - max = bounds.max, - x, y; - - if (code & 8) { // top - x = a.x + dx * (max.y - a.y) / dy; - y = max.y; - - } else if (code & 4) { // bottom - x = a.x + dx * (min.y - a.y) / dy; - y = min.y; - - } else if (code & 2) { // right - x = max.x; - y = a.y + dy * (max.x - a.x) / dx; - - } else if (code & 1) { // left - x = min.x; - y = a.y + dy * (min.x - a.x) / dx; - } - - return new Point(x, y, round); -} - -function _getBitCode(p, bounds) { - var code = 0; - - if (p.x < bounds.min.x) { // left - code |= 1; - } else if (p.x > bounds.max.x) { // right - code |= 2; - } - - if (p.y < bounds.min.y) { // bottom - code |= 4; - } else if (p.y > bounds.max.y) { // top - code |= 8; - } - - return code; -} - -// square distance (to avoid unnecessary Math.sqrt calls) -function _sqDist(p1, p2) { - var dx = p2.x - p1.x, - dy = p2.y - p1.y; - return dx * dx + dy * dy; -} - -// return closest point on segment or distance to that point -function _sqClosestPointOnSegment(p, p1, p2, sqDist) { - var x = p1.x, - y = p1.y, - dx = p2.x - x, - dy = p2.y - y, - dot = dx * dx + dy * dy, - t; - - if (dot > 0) { - t = ((p.x - x) * dx + (p.y - y) * dy) / dot; - - if (t > 1) { - x = p2.x; - y = p2.y; - } else if (t > 0) { - x += dx * t; - y += dy * t; - } - } - - dx = p.x - x; - dy = p.y - y; - - return sqDist ? dx * dx + dy * dy : new Point(x, y); -} - - -// @function isFlat(latlngs: LatLng[]): Boolean -// Returns true if `latlngs` is a flat array, false is nested. -function isFlat(latlngs) { - return !isArray(latlngs[0]) || (typeof latlngs[0][0] !== 'object' && typeof latlngs[0][0] !== 'undefined'); -} - -function _flat(latlngs) { - console.warn('Deprecated use of _flat, please use L.LineUtil.isFlat instead.'); - return isFlat(latlngs); -} - - -var LineUtil = (Object.freeze || Object)({ - simplify: simplify, - pointToSegmentDistance: pointToSegmentDistance, - closestPointOnSegment: closestPointOnSegment, - clipSegment: clipSegment, - _getEdgeIntersection: _getEdgeIntersection, - _getBitCode: _getBitCode, - _sqClosestPointOnSegment: _sqClosestPointOnSegment, - isFlat: isFlat, - _flat: _flat -}); - -/* - * @namespace PolyUtil - * Various utility functions for polygon geometries. - */ - -/* @function clipPolygon(points: Point[], bounds: Bounds, round?: Boolean): Point[] - * Clips the polygon geometry defined by the given `points` by the given bounds (using the [Sutherland-Hodgeman algorithm](https://en.wikipedia.org/wiki/Sutherland%E2%80%93Hodgman_algorithm)). - * Used by Leaflet to only show polygon points that are on the screen or near, increasing - * performance. Note that polygon points needs different algorithm for clipping - * than polyline, so there's a seperate method for it. - */ -function clipPolygon(points, bounds, round) { - var clippedPoints, - edges = [1, 4, 2, 8], - i, j, k, - a, b, - len, edge, p; - - for (i = 0, len = points.length; i < len; i++) { - points[i]._code = _getBitCode(points[i], bounds); - } - - // for each edge (left, bottom, right, top) - for (k = 0; k < 4; k++) { - edge = edges[k]; - clippedPoints = []; - - for (i = 0, len = points.length, j = len - 1; i < len; j = i++) { - a = points[i]; - b = points[j]; - - // if a is inside the clip window - if (!(a._code & edge)) { - // if b is outside the clip window (a->b goes out of screen) - if (b._code & edge) { - p = _getEdgeIntersection(b, a, edge, bounds, round); - p._code = _getBitCode(p, bounds); - clippedPoints.push(p); - } - clippedPoints.push(a); - - // else if b is inside the clip window (a->b enters the screen) - } else if (!(b._code & edge)) { - p = _getEdgeIntersection(b, a, edge, bounds, round); - p._code = _getBitCode(p, bounds); - clippedPoints.push(p); - } - } - points = clippedPoints; - } - - return points; -} - - -var PolyUtil = (Object.freeze || Object)({ - clipPolygon: clipPolygon -}); - -/* - * @namespace Projection - * @section - * Leaflet comes with a set of already defined Projections out of the box: - * - * @projection L.Projection.LonLat - * - * Equirectangular, or Plate Carree projection — the most simple projection, - * mostly used by GIS enthusiasts. Directly maps `x` as longitude, and `y` as - * latitude. Also suitable for flat worlds, e.g. game maps. Used by the - * `EPSG:4326` and `Simple` CRS. - */ - -var LonLat = { - project: function (latlng) { - return new Point(latlng.lng, latlng.lat); - }, - - unproject: function (point) { - return new LatLng(point.y, point.x); - }, - - bounds: new Bounds([-180, -90], [180, 90]) -}; - -/* - * @namespace Projection - * @projection L.Projection.Mercator - * - * Elliptical Mercator projection — more complex than Spherical Mercator. Takes into account that Earth is a geoid, not a perfect sphere. Used by the EPSG:3395 CRS. - */ - -var Mercator = { - R: 6378137, - R_MINOR: 6356752.314245179, - - bounds: new Bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]), - - project: function (latlng) { - var d = Math.PI / 180, - r = this.R, - y = latlng.lat * d, - tmp = this.R_MINOR / r, - e = Math.sqrt(1 - tmp * tmp), - con = e * Math.sin(y); - - var ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2); - y = -r * Math.log(Math.max(ts, 1E-10)); - - return new Point(latlng.lng * d * r, y); - }, - - unproject: function (point) { - var d = 180 / Math.PI, - r = this.R, - tmp = this.R_MINOR / r, - e = Math.sqrt(1 - tmp * tmp), - ts = Math.exp(-point.y / r), - phi = Math.PI / 2 - 2 * Math.atan(ts); - - for (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) { - con = e * Math.sin(phi); - con = Math.pow((1 - con) / (1 + con), e / 2); - dphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi; - phi += dphi; - } - - return new LatLng(phi * d, point.x * d / r); - } -}; - -/* - * @class Projection - - * An object with methods for projecting geographical coordinates of the world onto - * a flat surface (and back). See [Map projection](http://en.wikipedia.org/wiki/Map_projection). - - * @property bounds: Bounds - * The bounds (specified in CRS units) where the projection is valid - - * @method project(latlng: LatLng): Point - * Projects geographical coordinates into a 2D point. - * Only accepts actual `L.LatLng` instances, not arrays. - - * @method unproject(point: Point): LatLng - * The inverse of `project`. Projects a 2D point into a geographical location. - * Only accepts actual `L.Point` instances, not arrays. - - */ - - - - -var index = (Object.freeze || Object)({ - LonLat: LonLat, - Mercator: Mercator, - SphericalMercator: SphericalMercator -}); - -/* - * @namespace CRS - * @crs L.CRS.EPSG3395 - * - * Rarely used by some commercial tile providers. Uses Elliptical Mercator projection. - */ -var EPSG3395 = extend({}, Earth, { - code: 'EPSG:3395', - projection: Mercator, - - transformation: (function () { - var scale = 0.5 / (Math.PI * Mercator.R); - return toTransformation(scale, 0.5, -scale, 0.5); - }()) -}); - -/* - * @namespace CRS - * @crs L.CRS.EPSG4326 - * - * A common CRS among GIS enthusiasts. Uses simple Equirectangular projection. - * - * Leaflet 1.0.x complies with the [TMS coordinate scheme for EPSG:4326](https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification#global-geodetic), - * which is a breaking change from 0.7.x behaviour. If you are using a `TileLayer` - * with this CRS, ensure that there are two 256x256 pixel tiles covering the - * whole earth at zoom level zero, and that the tile coordinate origin is (-180,+90), - * or (-180,-90) for `TileLayer`s with [the `tms` option](#tilelayer-tms) set. - */ - -var EPSG4326 = extend({}, Earth, { - code: 'EPSG:4326', - projection: LonLat, - transformation: toTransformation(1 / 180, 1, -1 / 180, 0.5) -}); - -/* - * @namespace CRS - * @crs L.CRS.Simple - * - * A simple CRS that maps longitude and latitude into `x` and `y` directly. - * May be used for maps of flat surfaces (e.g. game maps). Note that the `y` - * axis should still be inverted (going from bottom to top). `distance()` returns - * simple euclidean distance. - */ - -var Simple = extend({}, CRS, { - projection: LonLat, - transformation: toTransformation(1, 0, -1, 0), - - scale: function (zoom) { - return Math.pow(2, zoom); - }, - - zoom: function (scale) { - return Math.log(scale) / Math.LN2; - }, - - distance: function (latlng1, latlng2) { - var dx = latlng2.lng - latlng1.lng, - dy = latlng2.lat - latlng1.lat; - - return Math.sqrt(dx * dx + dy * dy); - }, - - infinite: true -}); - -CRS.Earth = Earth; -CRS.EPSG3395 = EPSG3395; -CRS.EPSG3857 = EPSG3857; -CRS.EPSG900913 = EPSG900913; -CRS.EPSG4326 = EPSG4326; -CRS.Simple = Simple; - -/* - * @class Layer - * @inherits Evented - * @aka L.Layer - * @aka ILayer - * - * A set of methods from the Layer base class that all Leaflet layers use. - * Inherits all methods, options and events from `L.Evented`. - * - * @example - * - * ```js - * var layer = L.Marker(latlng).addTo(map); - * layer.addTo(map); - * layer.remove(); - * ``` - * - * @event add: Event - * Fired after the layer is added to a map - * - * @event remove: Event - * Fired after the layer is removed from a map - */ - - -var Layer = Evented.extend({ - - // Classes extending `L.Layer` will inherit the following options: - options: { - // @option pane: String = 'overlayPane' - // By default the layer will be added to the map's [overlay pane](#map-overlaypane). Overriding this option will cause the layer to be placed on another pane by default. - pane: 'overlayPane', - - // @option attribution: String = null - // String to be shown in the attribution control, describes the layer data, e.g. "© Mapbox". - attribution: null, - - bubblingMouseEvents: true - }, - - /* @section - * Classes extending `L.Layer` will inherit the following methods: - * - * @method addTo(map: Map|LayerGroup): this - * Adds the layer to the given map or layer group. - */ - addTo: function (map) { - map.addLayer(this); - return this; - }, - - // @method remove: this - // Removes the layer from the map it is currently active on. - remove: function () { - return this.removeFrom(this._map || this._mapToAdd); - }, - - // @method removeFrom(map: Map): this - // Removes the layer from the given map - removeFrom: function (obj) { - if (obj) { - obj.removeLayer(this); - } - return this; - }, - - // @method getPane(name? : String): HTMLElement - // Returns the `HTMLElement` representing the named pane on the map. If `name` is omitted, returns the pane for this layer. - getPane: function (name) { - return this._map.getPane(name ? (this.options[name] || name) : this.options.pane); - }, - - addInteractiveTarget: function (targetEl) { - this._map._targets[stamp(targetEl)] = this; - return this; - }, - - removeInteractiveTarget: function (targetEl) { - delete this._map._targets[stamp(targetEl)]; - return this; - }, - - // @method getAttribution: String - // Used by the `attribution control`, returns the [attribution option](#gridlayer-attribution). - getAttribution: function () { - return this.options.attribution; - }, - - _layerAdd: function (e) { - var map = e.target; - - // check in case layer gets added and then removed before the map is ready - if (!map.hasLayer(this)) { return; } - - this._map = map; - this._zoomAnimated = map._zoomAnimated; - - if (this.getEvents) { - var events = this.getEvents(); - map.on(events, this); - this.once('remove', function () { - map.off(events, this); - }, this); - } - - this.onAdd(map); - - if (this.getAttribution && map.attributionControl) { - map.attributionControl.addAttribution(this.getAttribution()); - } - - this.fire('add'); - map.fire('layeradd', {layer: this}); - } -}); - -/* @section Extension methods - * @uninheritable - * - * Every layer should extend from `L.Layer` and (re-)implement the following methods. - * - * @method onAdd(map: Map): this - * Should contain code that creates DOM elements for the layer, adds them to `map panes` where they should belong and puts listeners on relevant map events. Called on [`map.addLayer(layer)`](#map-addlayer). - * - * @method onRemove(map: Map): this - * Should contain all clean up code that removes the layer's elements from the DOM and removes listeners previously added in [`onAdd`](#layer-onadd). Called on [`map.removeLayer(layer)`](#map-removelayer). - * - * @method getEvents(): Object - * This optional method should return an object like `{ viewreset: this._reset }` for [`addEventListener`](#evented-addeventlistener). The event handlers in this object will be automatically added and removed from the map with your layer. - * - * @method getAttribution(): String - * This optional method should return a string containing HTML to be shown on the `Attribution control` whenever the layer is visible. - * - * @method beforeAdd(map: Map): this - * Optional method. Called on [`map.addLayer(layer)`](#map-addlayer), before the layer is added to the map, before events are initialized, without waiting until the map is in a usable state. Use for early initialization only. - */ - - -/* @namespace Map - * @section Layer events - * - * @event layeradd: LayerEvent - * Fired when a new layer is added to the map. - * - * @event layerremove: LayerEvent - * Fired when some layer is removed from the map - * - * @section Methods for Layers and Controls - */ -Map.include({ - // @method addLayer(layer: Layer): this - // Adds the given layer to the map - addLayer: function (layer) { - if (!layer._layerAdd) { - throw new Error('The provided object is not a Layer.'); - } - - var id = stamp(layer); - if (this._layers[id]) { return this; } - this._layers[id] = layer; - - layer._mapToAdd = this; - - if (layer.beforeAdd) { - layer.beforeAdd(this); - } - - this.whenReady(layer._layerAdd, layer); - - return this; - }, - - // @method removeLayer(layer: Layer): this - // Removes the given layer from the map. - removeLayer: function (layer) { - var id = stamp(layer); - - if (!this._layers[id]) { return this; } - - if (this._loaded) { - layer.onRemove(this); - } - - if (layer.getAttribution && this.attributionControl) { - this.attributionControl.removeAttribution(layer.getAttribution()); - } - - delete this._layers[id]; - - if (this._loaded) { - this.fire('layerremove', {layer: layer}); - layer.fire('remove'); - } - - layer._map = layer._mapToAdd = null; - - return this; - }, - - // @method hasLayer(layer: Layer): Boolean - // Returns `true` if the given layer is currently added to the map - hasLayer: function (layer) { - return !!layer && (stamp(layer) in this._layers); - }, - - /* @method eachLayer(fn: Function, context?: Object): this - * Iterates over the layers of the map, optionally specifying context of the iterator function. - * ``` - * map.eachLayer(function(layer){ - * layer.bindPopup('Hello'); - * }); - * ``` - */ - eachLayer: function (method, context) { - for (var i in this._layers) { - method.call(context, this._layers[i]); - } - return this; - }, - - _addLayers: function (layers) { - layers = layers ? (isArray(layers) ? layers : [layers]) : []; - - for (var i = 0, len = layers.length; i < len; i++) { - this.addLayer(layers[i]); - } - }, - - _addZoomLimit: function (layer) { - if (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) { - this._zoomBoundLayers[stamp(layer)] = layer; - this._updateZoomLevels(); - } - }, - - _removeZoomLimit: function (layer) { - var id = stamp(layer); - - if (this._zoomBoundLayers[id]) { - delete this._zoomBoundLayers[id]; - this._updateZoomLevels(); - } - }, - - _updateZoomLevels: function () { - var minZoom = Infinity, - maxZoom = -Infinity, - oldZoomSpan = this._getZoomSpan(); - - for (var i in this._zoomBoundLayers) { - var options = this._zoomBoundLayers[i].options; - - minZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom); - maxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom); - } - - this._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom; - this._layersMinZoom = minZoom === Infinity ? undefined : minZoom; - - // @section Map state change events - // @event zoomlevelschange: Event - // Fired when the number of zoomlevels on the map is changed due - // to adding or removing a layer. - if (oldZoomSpan !== this._getZoomSpan()) { - this.fire('zoomlevelschange'); - } - - if (this.options.maxZoom === undefined && this._layersMaxZoom && this.getZoom() > this._layersMaxZoom) { - this.setZoom(this._layersMaxZoom); - } - if (this.options.minZoom === undefined && this._layersMinZoom && this.getZoom() < this._layersMinZoom) { - this.setZoom(this._layersMinZoom); - } - } -}); - -/* - * @class LayerGroup - * @aka L.LayerGroup - * @inherits Layer - * - * Used to group several layers and handle them as one. If you add it to the map, - * any layers added or removed from the group will be added/removed on the map as - * well. Extends `Layer`. - * - * @example - * - * ```js - * L.layerGroup([marker1, marker2]) - * .addLayer(polyline) - * .addTo(map); - * ``` - */ - -var LayerGroup = Layer.extend({ - - initialize: function (layers) { - this._layers = {}; - - var i, len; - - if (layers) { - for (i = 0, len = layers.length; i < len; i++) { - this.addLayer(layers[i]); - } - } - }, - - // @method addLayer(layer: Layer): this - // Adds the given layer to the group. - addLayer: function (layer) { - var id = this.getLayerId(layer); - - this._layers[id] = layer; - - if (this._map) { - this._map.addLayer(layer); - } - - return this; - }, - - // @method removeLayer(layer: Layer): this - // Removes the given layer from the group. - // @alternative - // @method removeLayer(id: Number): this - // Removes the layer with the given internal ID from the group. - removeLayer: function (layer) { - var id = layer in this._layers ? layer : this.getLayerId(layer); - - if (this._map && this._layers[id]) { - this._map.removeLayer(this._layers[id]); - } - - delete this._layers[id]; - - return this; - }, - - // @method hasLayer(layer: Layer): Boolean - // Returns `true` if the given layer is currently added to the group. - // @alternative - // @method hasLayer(id: Number): Boolean - // Returns `true` if the given internal ID is currently added to the group. - hasLayer: function (layer) { - return !!layer && (layer in this._layers || this.getLayerId(layer) in this._layers); - }, - - // @method clearLayers(): this - // Removes all the layers from the group. - clearLayers: function () { - for (var i in this._layers) { - this.removeLayer(this._layers[i]); - } - return this; - }, - - // @method invoke(methodName: String, …): this - // Calls `methodName` on every layer contained in this group, passing any - // additional parameters. Has no effect if the layers contained do not - // implement `methodName`. - invoke: function (methodName) { - var args = Array.prototype.slice.call(arguments, 1), - i, layer; - - for (i in this._layers) { - layer = this._layers[i]; - - if (layer[methodName]) { - layer[methodName].apply(layer, args); - } - } - - return this; - }, - - onAdd: function (map) { - for (var i in this._layers) { - map.addLayer(this._layers[i]); - } - }, - - onRemove: function (map) { - for (var i in this._layers) { - map.removeLayer(this._layers[i]); - } - }, - - // @method eachLayer(fn: Function, context?: Object): this - // Iterates over the layers of the group, optionally specifying context of the iterator function. - // ```js - // group.eachLayer(function (layer) { - // layer.bindPopup('Hello'); - // }); - // ``` - eachLayer: function (method, context) { - for (var i in this._layers) { - method.call(context, this._layers[i]); - } - return this; - }, - - // @method getLayer(id: Number): Layer - // Returns the layer with the given internal ID. - getLayer: function (id) { - return this._layers[id]; - }, - - // @method getLayers(): Layer[] - // Returns an array of all the layers added to the group. - getLayers: function () { - var layers = []; - - for (var i in this._layers) { - layers.push(this._layers[i]); - } - return layers; - }, - - // @method setZIndex(zIndex: Number): this - // Calls `setZIndex` on every layer contained in this group, passing the z-index. - setZIndex: function (zIndex) { - return this.invoke('setZIndex', zIndex); - }, - - // @method getLayerId(layer: Layer): Number - // Returns the internal ID for a layer - getLayerId: function (layer) { - return stamp(layer); - } -}); - - -// @factory L.layerGroup(layers?: Layer[]) -// Create a layer group, optionally given an initial set of layers. -var layerGroup = function (layers) { - return new LayerGroup(layers); -}; - -/* - * @class FeatureGroup - * @aka L.FeatureGroup - * @inherits LayerGroup - * - * Extended `LayerGroup` that makes it easier to do the same thing to all its member layers: - * * [`bindPopup`](#layer-bindpopup) binds a popup to all of the layers at once (likewise with [`bindTooltip`](#layer-bindtooltip)) - * * Events are propagated to the `FeatureGroup`, so if the group has an event - * handler, it will handle events from any of the layers. This includes mouse events - * and custom events. - * * Has `layeradd` and `layerremove` events - * - * @example - * - * ```js - * L.featureGroup([marker1, marker2, polyline]) - * .bindPopup('Hello world!') - * .on('click', function() { alert('Clicked on a member of the group!'); }) - * .addTo(map); - * ``` - */ - -var FeatureGroup = LayerGroup.extend({ - - addLayer: function (layer) { - if (this.hasLayer(layer)) { - return this; - } - - layer.addEventParent(this); - - LayerGroup.prototype.addLayer.call(this, layer); - - // @event layeradd: LayerEvent - // Fired when a layer is added to this `FeatureGroup` - return this.fire('layeradd', {layer: layer}); - }, - - removeLayer: function (layer) { - if (!this.hasLayer(layer)) { - return this; - } - if (layer in this._layers) { - layer = this._layers[layer]; - } - - layer.removeEventParent(this); - - LayerGroup.prototype.removeLayer.call(this, layer); - - // @event layerremove: LayerEvent - // Fired when a layer is removed from this `FeatureGroup` - return this.fire('layerremove', {layer: layer}); - }, - - // @method setStyle(style: Path options): this - // Sets the given path options to each layer of the group that has a `setStyle` method. - setStyle: function (style) { - return this.invoke('setStyle', style); - }, - - // @method bringToFront(): this - // Brings the layer group to the top of all other layers - bringToFront: function () { - return this.invoke('bringToFront'); - }, - - // @method bringToBack(): this - // Brings the layer group to the top of all other layers - bringToBack: function () { - return this.invoke('bringToBack'); - }, - - // @method getBounds(): LatLngBounds - // Returns the LatLngBounds of the Feature Group (created from bounds and coordinates of its children). - getBounds: function () { - var bounds = new LatLngBounds(); - - for (var id in this._layers) { - var layer = this._layers[id]; - bounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng()); - } - return bounds; - } -}); - -// @factory L.featureGroup(layers: Layer[]) -// Create a feature group, optionally given an initial set of layers. -var featureGroup = function (layers) { - return new FeatureGroup(layers); -}; - -/* - * @class Icon - * @aka L.Icon - * - * Represents an icon to provide when creating a marker. - * - * @example - * - * ```js - * var myIcon = L.icon({ - * iconUrl: 'my-icon.png', - * iconRetinaUrl: 'my-icon@2x.png', - * iconSize: [38, 95], - * iconAnchor: [22, 94], - * popupAnchor: [-3, -76], - * shadowUrl: 'my-icon-shadow.png', - * shadowRetinaUrl: 'my-icon-shadow@2x.png', - * shadowSize: [68, 95], - * shadowAnchor: [22, 94] - * }); - * - * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map); - * ``` - * - * `L.Icon.Default` extends `L.Icon` and is the blue icon Leaflet uses for markers by default. - * - */ - -var Icon = Class.extend({ - - /* @section - * @aka Icon options - * - * @option iconUrl: String = null - * **(required)** The URL to the icon image (absolute or relative to your script path). - * - * @option iconRetinaUrl: String = null - * The URL to a retina sized version of the icon image (absolute or relative to your - * script path). Used for Retina screen devices. - * - * @option iconSize: Point = null - * Size of the icon image in pixels. - * - * @option iconAnchor: Point = null - * The coordinates of the "tip" of the icon (relative to its top left corner). The icon - * will be aligned so that this point is at the marker's geographical location. Centered - * by default if size is specified, also can be set in CSS with negative margins. - * - * @option popupAnchor: Point = null - * The coordinates of the point from which popups will "open", relative to the icon anchor. - * - * @option shadowUrl: String = null - * The URL to the icon shadow image. If not specified, no shadow image will be created. - * - * @option shadowRetinaUrl: String = null - * - * @option shadowSize: Point = null - * Size of the shadow image in pixels. - * - * @option shadowAnchor: Point = null - * The coordinates of the "tip" of the shadow (relative to its top left corner) (the same - * as iconAnchor if not specified). - * - * @option className: String = '' - * A custom class name to assign to both icon and shadow images. Empty by default. - */ - - initialize: function (options) { - setOptions(this, options); - }, - - // @method createIcon(oldIcon?: HTMLElement): HTMLElement - // Called internally when the icon has to be shown, returns a `` HTML element - // styled according to the options. - createIcon: function (oldIcon) { - return this._createIcon('icon', oldIcon); - }, - - // @method createShadow(oldIcon?: HTMLElement): HTMLElement - // As `createIcon`, but for the shadow beneath it. - createShadow: function (oldIcon) { - return this._createIcon('shadow', oldIcon); - }, - - _createIcon: function (name, oldIcon) { - var src = this._getIconUrl(name); - - if (!src) { - if (name === 'icon') { - throw new Error('iconUrl not set in Icon options (see the docs).'); - } - return null; - } - - var img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null); - this._setIconStyles(img, name); - - return img; - }, - - _setIconStyles: function (img, name) { - var options = this.options; - var sizeOption = options[name + 'Size']; - - if (typeof sizeOption === 'number') { - sizeOption = [sizeOption, sizeOption]; - } - - var size = toPoint(sizeOption), - anchor = toPoint(name === 'shadow' && options.shadowAnchor || options.iconAnchor || - size && size.divideBy(2, true)); - - img.className = 'leaflet-marker-' + name + ' ' + (options.className || ''); - - if (anchor) { - img.style.marginLeft = (-anchor.x) + 'px'; - img.style.marginTop = (-anchor.y) + 'px'; - } - - if (size) { - img.style.width = size.x + 'px'; - img.style.height = size.y + 'px'; - } - }, - - _createImg: function (src, el) { - el = el || document.createElement('img'); - el.src = src; - return el; - }, - - _getIconUrl: function (name) { - return retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url']; - } -}); - - -// @factory L.icon(options: Icon options) -// Creates an icon instance with the given options. -function icon(options) { - return new Icon(options); -} - -/* - * @miniclass Icon.Default (Icon) - * @aka L.Icon.Default - * @section - * - * A trivial subclass of `Icon`, represents the icon to use in `Marker`s when - * no icon is specified. Points to the blue marker image distributed with Leaflet - * releases. - * - * In order to customize the default icon, just change the properties of `L.Icon.Default.prototype.options` - * (which is a set of `Icon options`). - * - * If you want to _completely_ replace the default icon, override the - * `L.Marker.prototype.options.icon` with your own icon instead. - */ - -var IconDefault = Icon.extend({ - - options: { - iconUrl: 'marker-icon.png', - iconRetinaUrl: 'marker-icon-2x.png', - shadowUrl: 'marker-shadow.png', - iconSize: [25, 41], - iconAnchor: [12, 41], - popupAnchor: [1, -34], - tooltipAnchor: [16, -28], - shadowSize: [41, 41] - }, - - _getIconUrl: function (name) { - if (!IconDefault.imagePath) { // Deprecated, backwards-compatibility only - IconDefault.imagePath = this._detectIconPath(); - } - - // @option imagePath: String - // `Icon.Default` will try to auto-detect the absolute location of the - // blue icon images. If you are placing these images in a non-standard - // way, set this option to point to the right absolute path. - return (this.options.imagePath || IconDefault.imagePath) + Icon.prototype._getIconUrl.call(this, name); - }, - - _detectIconPath: function () { - var el = create$1('div', 'leaflet-default-icon-path', document.body); - var path = getStyle(el, 'background-image') || - getStyle(el, 'backgroundImage'); // IE8 - - document.body.removeChild(el); - - if (path === null || path.indexOf('url') !== 0) { - path = ''; - } else { - path = path.replace(/^url\([\"\']?/, '').replace(/marker-icon\.png[\"\']?\)$/, ''); - } - - return path; - } -}); - -/* - * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable. - */ - - -/* @namespace Marker - * @section Interaction handlers - * - * Interaction handlers are properties of a marker instance that allow you to control interaction behavior in runtime, enabling or disabling certain features such as dragging (see `Handler` methods). Example: - * - * ```js - * marker.dragging.disable(); - * ``` - * - * @property dragging: Handler - * Marker dragging handler (by both mouse and touch). Only valid when the marker is on the map (Otherwise set [`marker.options.draggable`](#marker-draggable)). - */ - -var MarkerDrag = Handler.extend({ - initialize: function (marker) { - this._marker = marker; - }, - - addHooks: function () { - var icon = this._marker._icon; - - if (!this._draggable) { - this._draggable = new Draggable(icon, icon, true); - } - - this._draggable.on({ - dragstart: this._onDragStart, - drag: this._onDrag, - dragend: this._onDragEnd - }, this).enable(); - - addClass(icon, 'leaflet-marker-draggable'); - }, - - removeHooks: function () { - this._draggable.off({ - dragstart: this._onDragStart, - drag: this._onDrag, - dragend: this._onDragEnd - }, this).disable(); - - if (this._marker._icon) { - removeClass(this._marker._icon, 'leaflet-marker-draggable'); - } - }, - - moved: function () { - return this._draggable && this._draggable._moved; - }, - - _onDragStart: function () { - // @section Dragging events - // @event dragstart: Event - // Fired when the user starts dragging the marker. - - // @event movestart: Event - // Fired when the marker starts moving (because of dragging). - - this._oldLatLng = this._marker.getLatLng(); - this._marker - .closePopup() - .fire('movestart') - .fire('dragstart'); - }, - - _onDrag: function (e) { - var marker = this._marker, - shadow = marker._shadow, - iconPos = getPosition(marker._icon), - latlng = marker._map.layerPointToLatLng(iconPos); - - // update shadow position - if (shadow) { - setPosition(shadow, iconPos); - } - - marker._latlng = latlng; - e.latlng = latlng; - e.oldLatLng = this._oldLatLng; - - // @event drag: Event - // Fired repeatedly while the user drags the marker. - marker - .fire('move', e) - .fire('drag', e); - }, - - _onDragEnd: function (e) { - // @event dragend: DragEndEvent - // Fired when the user stops dragging the marker. - - // @event moveend: Event - // Fired when the marker stops moving (because of dragging). - delete this._oldLatLng; - this._marker - .fire('moveend') - .fire('dragend', e); - } -}); - -/* - * @class Marker - * @inherits Interactive layer - * @aka L.Marker - * L.Marker is used to display clickable/draggable icons on the map. Extends `Layer`. - * - * @example - * - * ```js - * L.marker([50.5, 30.5]).addTo(map); - * ``` - */ - -var Marker = Layer.extend({ - - // @section - // @aka Marker options - options: { - // @option icon: Icon = * - // Icon instance to use for rendering the marker. - // See [Icon documentation](#L.Icon) for details on how to customize the marker icon. - // If not specified, a common instance of `L.Icon.Default` is used. - icon: new IconDefault(), - - // Option inherited from "Interactive layer" abstract class - interactive: true, - - // @option draggable: Boolean = false - // Whether the marker is draggable with mouse/touch or not. - draggable: false, - - // @option keyboard: Boolean = true - // Whether the marker can be tabbed to with a keyboard and clicked by pressing enter. - keyboard: true, - - // @option title: String = '' - // Text for the browser tooltip that appear on marker hover (no tooltip by default). - title: '', - - // @option alt: String = '' - // Text for the `alt` attribute of the icon image (useful for accessibility). - alt: '', - - // @option zIndexOffset: Number = 0 - // By default, marker images zIndex is set automatically based on its latitude. Use this option if you want to put the marker on top of all others (or below), specifying a high value like `1000` (or high negative value, respectively). - zIndexOffset: 0, - - // @option opacity: Number = 1.0 - // The opacity of the marker. - opacity: 1, - - // @option riseOnHover: Boolean = false - // If `true`, the marker will get on top of others when you hover the mouse over it. - riseOnHover: false, - - // @option riseOffset: Number = 250 - // The z-index offset used for the `riseOnHover` feature. - riseOffset: 250, - - // @option pane: String = 'markerPane' - // `Map pane` where the markers icon will be added. - pane: 'markerPane', - - // @option bubblingMouseEvents: Boolean = false - // When `true`, a mouse event on this marker will trigger the same event on the map - // (unless [`L.DomEvent.stopPropagation`](#domevent-stoppropagation) is used). - bubblingMouseEvents: false - }, - - /* @section - * - * In addition to [shared layer methods](#Layer) like `addTo()` and `remove()` and [popup methods](#Popup) like bindPopup() you can also use the following methods: - */ - - initialize: function (latlng, options) { - setOptions(this, options); - this._latlng = toLatLng(latlng); - }, - - onAdd: function (map) { - this._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation; - - if (this._zoomAnimated) { - map.on('zoomanim', this._animateZoom, this); - } - - this._initIcon(); - this.update(); - }, - - onRemove: function (map) { - if (this.dragging && this.dragging.enabled()) { - this.options.draggable = true; - this.dragging.removeHooks(); - } - delete this.dragging; - - if (this._zoomAnimated) { - map.off('zoomanim', this._animateZoom, this); - } - - this._removeIcon(); - this._removeShadow(); - }, - - getEvents: function () { - return { - zoom: this.update, - viewreset: this.update - }; - }, - - // @method getLatLng: LatLng - // Returns the current geographical position of the marker. - getLatLng: function () { - return this._latlng; - }, - - // @method setLatLng(latlng: LatLng): this - // Changes the marker position to the given point. - setLatLng: function (latlng) { - var oldLatLng = this._latlng; - this._latlng = toLatLng(latlng); - this.update(); - - // @event move: Event - // Fired when the marker is moved via [`setLatLng`](#marker-setlatlng) or by [dragging](#marker-dragging). Old and new coordinates are included in event arguments as `oldLatLng`, `latlng`. - return this.fire('move', {oldLatLng: oldLatLng, latlng: this._latlng}); - }, - - // @method setZIndexOffset(offset: Number): this - // Changes the [zIndex offset](#marker-zindexoffset) of the marker. - setZIndexOffset: function (offset) { - this.options.zIndexOffset = offset; - return this.update(); - }, - - // @method setIcon(icon: Icon): this - // Changes the marker icon. - setIcon: function (icon) { - - this.options.icon = icon; - - if (this._map) { - this._initIcon(); - this.update(); - } - - if (this._popup) { - this.bindPopup(this._popup, this._popup.options); - } - - return this; - }, - - getElement: function () { - return this._icon; - }, - - update: function () { - - if (this._icon) { - var pos = this._map.latLngToLayerPoint(this._latlng).round(); - this._setPos(pos); - } - - return this; - }, - - _initIcon: function () { - var options = this.options, - classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide'); - - var icon = options.icon.createIcon(this._icon), - addIcon = false; - - // if we're not reusing the icon, remove the old one and init new one - if (icon !== this._icon) { - if (this._icon) { - this._removeIcon(); - } - addIcon = true; - - if (options.title) { - icon.title = options.title; - } - if (options.alt) { - icon.alt = options.alt; - } - } - - addClass(icon, classToAdd); - - if (options.keyboard) { - icon.tabIndex = '0'; - } - - this._icon = icon; - - if (options.riseOnHover) { - this.on({ - mouseover: this._bringToFront, - mouseout: this._resetZIndex - }); - } - - var newShadow = options.icon.createShadow(this._shadow), - addShadow = false; - - if (newShadow !== this._shadow) { - this._removeShadow(); - addShadow = true; - } - - if (newShadow) { - addClass(newShadow, classToAdd); - newShadow.alt = ''; - } - this._shadow = newShadow; - - - if (options.opacity < 1) { - this._updateOpacity(); - } - - - if (addIcon) { - this.getPane().appendChild(this._icon); - } - this._initInteraction(); - if (newShadow && addShadow) { - this.getPane('shadowPane').appendChild(this._shadow); - } - }, - - _removeIcon: function () { - if (this.options.riseOnHover) { - this.off({ - mouseover: this._bringToFront, - mouseout: this._resetZIndex - }); - } - - remove(this._icon); - this.removeInteractiveTarget(this._icon); - - this._icon = null; - }, - - _removeShadow: function () { - if (this._shadow) { - remove(this._shadow); - } - this._shadow = null; - }, - - _setPos: function (pos) { - setPosition(this._icon, pos); - - if (this._shadow) { - setPosition(this._shadow, pos); - } - - this._zIndex = pos.y + this.options.zIndexOffset; - - this._resetZIndex(); - }, - - _updateZIndex: function (offset) { - this._icon.style.zIndex = this._zIndex + offset; - }, - - _animateZoom: function (opt) { - var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round(); - - this._setPos(pos); - }, - - _initInteraction: function () { - - if (!this.options.interactive) { return; } - - addClass(this._icon, 'leaflet-interactive'); - - this.addInteractiveTarget(this._icon); - - if (MarkerDrag) { - var draggable = this.options.draggable; - if (this.dragging) { - draggable = this.dragging.enabled(); - this.dragging.disable(); - } - - this.dragging = new MarkerDrag(this); - - if (draggable) { - this.dragging.enable(); - } - } - }, - - // @method setOpacity(opacity: Number): this - // Changes the opacity of the marker. - setOpacity: function (opacity) { - this.options.opacity = opacity; - if (this._map) { - this._updateOpacity(); - } - - return this; - }, - - _updateOpacity: function () { - var opacity = this.options.opacity; - - setOpacity(this._icon, opacity); - - if (this._shadow) { - setOpacity(this._shadow, opacity); - } - }, - - _bringToFront: function () { - this._updateZIndex(this.options.riseOffset); - }, - - _resetZIndex: function () { - this._updateZIndex(0); - }, - - _getPopupAnchor: function () { - return this.options.icon.options.popupAnchor || [0, 0]; - }, - - _getTooltipAnchor: function () { - return this.options.icon.options.tooltipAnchor || [0, 0]; - } -}); - - -// factory L.marker(latlng: LatLng, options? : Marker options) - -// @factory L.marker(latlng: LatLng, options? : Marker options) -// Instantiates a Marker object given a geographical point and optionally an options object. -function marker(latlng, options) { - return new Marker(latlng, options); -} - -/* - * @class Path - * @aka L.Path - * @inherits Interactive layer - * - * An abstract class that contains options and constants shared between vector - * overlays (Polygon, Polyline, Circle). Do not use it directly. Extends `Layer`. - */ - -var Path = Layer.extend({ - - // @section - // @aka Path options - options: { - // @option stroke: Boolean = true - // Whether to draw stroke along the path. Set it to `false` to disable borders on polygons or circles. - stroke: true, - - // @option color: String = '#3388ff' - // Stroke color - color: '#3388ff', - - // @option weight: Number = 3 - // Stroke width in pixels - weight: 3, - - // @option opacity: Number = 1.0 - // Stroke opacity - opacity: 1, - - // @option lineCap: String= 'round' - // A string that defines [shape to be used at the end](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linecap) of the stroke. - lineCap: 'round', - - // @option lineJoin: String = 'round' - // A string that defines [shape to be used at the corners](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linejoin) of the stroke. - lineJoin: 'round', - - // @option dashArray: String = null - // A string that defines the stroke [dash pattern](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dasharray). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility). - dashArray: null, - - // @option dashOffset: String = null - // A string that defines the [distance into the dash pattern to start the dash](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dashoffset). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility). - dashOffset: null, - - // @option fill: Boolean = depends - // Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles. - fill: false, - - // @option fillColor: String = * - // Fill color. Defaults to the value of the [`color`](#path-color) option - fillColor: null, - - // @option fillOpacity: Number = 0.2 - // Fill opacity. - fillOpacity: 0.2, - - // @option fillRule: String = 'evenodd' - // A string that defines [how the inside of a shape](https://developer.mozilla.org/docs/Web/SVG/Attribute/fill-rule) is determined. - fillRule: 'evenodd', - - // className: '', - - // Option inherited from "Interactive layer" abstract class - interactive: true, - - // @option bubblingMouseEvents: Boolean = true - // When `true`, a mouse event on this path will trigger the same event on the map - // (unless [`L.DomEvent.stopPropagation`](#domevent-stoppropagation) is used). - bubblingMouseEvents: true - }, - - beforeAdd: function (map) { - // Renderer is set here because we need to call renderer.getEvents - // before this.getEvents. - this._renderer = map.getRenderer(this); - }, - - onAdd: function () { - this._renderer._initPath(this); - this._reset(); - this._renderer._addPath(this); - }, - - onRemove: function () { - this._renderer._removePath(this); - }, - - // @method redraw(): this - // Redraws the layer. Sometimes useful after you changed the coordinates that the path uses. - redraw: function () { - if (this._map) { - this._renderer._updatePath(this); - } - return this; - }, - - // @method setStyle(style: Path options): this - // Changes the appearance of a Path based on the options in the `Path options` object. - setStyle: function (style) { - setOptions(this, style); - if (this._renderer) { - this._renderer._updateStyle(this); - } - return this; - }, - - // @method bringToFront(): this - // Brings the layer to the top of all path layers. - bringToFront: function () { - if (this._renderer) { - this._renderer._bringToFront(this); - } - return this; - }, - - // @method bringToBack(): this - // Brings the layer to the bottom of all path layers. - bringToBack: function () { - if (this._renderer) { - this._renderer._bringToBack(this); - } - return this; - }, - - getElement: function () { - return this._path; - }, - - _reset: function () { - // defined in child classes - this._project(); - this._update(); - }, - - _clickTolerance: function () { - // used when doing hit detection for Canvas layers - return (this.options.stroke ? this.options.weight / 2 : 0) + (touch ? 10 : 0); - } -}); - -/* - * @class CircleMarker - * @aka L.CircleMarker - * @inherits Path - * - * A circle of a fixed size with radius specified in pixels. Extends `Path`. - */ - -var CircleMarker = Path.extend({ - - // @section - // @aka CircleMarker options - options: { - fill: true, - - // @option radius: Number = 10 - // Radius of the circle marker, in pixels - radius: 10 - }, - - initialize: function (latlng, options) { - setOptions(this, options); - this._latlng = toLatLng(latlng); - this._radius = this.options.radius; - }, - - // @method setLatLng(latLng: LatLng): this - // Sets the position of a circle marker to a new location. - setLatLng: function (latlng) { - this._latlng = toLatLng(latlng); - this.redraw(); - return this.fire('move', {latlng: this._latlng}); - }, - - // @method getLatLng(): LatLng - // Returns the current geographical position of the circle marker - getLatLng: function () { - return this._latlng; - }, - - // @method setRadius(radius: Number): this - // Sets the radius of a circle marker. Units are in pixels. - setRadius: function (radius) { - this.options.radius = this._radius = radius; - return this.redraw(); - }, - - // @method getRadius(): Number - // Returns the current radius of the circle - getRadius: function () { - return this._radius; - }, - - setStyle : function (options) { - var radius = options && options.radius || this._radius; - Path.prototype.setStyle.call(this, options); - this.setRadius(radius); - return this; - }, - - _project: function () { - this._point = this._map.latLngToLayerPoint(this._latlng); - this._updateBounds(); - }, - - _updateBounds: function () { - var r = this._radius, - r2 = this._radiusY || r, - w = this._clickTolerance(), - p = [r + w, r2 + w]; - this._pxBounds = new Bounds(this._point.subtract(p), this._point.add(p)); - }, - - _update: function () { - if (this._map) { - this._updatePath(); - } - }, - - _updatePath: function () { - this._renderer._updateCircle(this); - }, - - _empty: function () { - return this._radius && !this._renderer._bounds.intersects(this._pxBounds); - }, - - // Needed by the `Canvas` renderer for interactivity - _containsPoint: function (p) { - return p.distanceTo(this._point) <= this._radius + this._clickTolerance(); - } -}); - - -// @factory L.circleMarker(latlng: LatLng, options?: CircleMarker options) -// Instantiates a circle marker object given a geographical point, and an optional options object. -function circleMarker(latlng, options) { - return new CircleMarker(latlng, options); -} - -/* - * @class Circle - * @aka L.Circle - * @inherits CircleMarker - * - * A class for drawing circle overlays on a map. Extends `CircleMarker`. - * - * It's an approximation and starts to diverge from a real circle closer to poles (due to projection distortion). - * - * @example - * - * ```js - * L.circle([50.5, 30.5], {radius: 200}).addTo(map); - * ``` - */ - -var Circle = CircleMarker.extend({ - - initialize: function (latlng, options, legacyOptions) { - if (typeof options === 'number') { - // Backwards compatibility with 0.7.x factory (latlng, radius, options?) - options = extend({}, legacyOptions, {radius: options}); - } - setOptions(this, options); - this._latlng = toLatLng(latlng); - - if (isNaN(this.options.radius)) { throw new Error('Circle radius cannot be NaN'); } - - // @section - // @aka Circle options - // @option radius: Number; Radius of the circle, in meters. - this._mRadius = this.options.radius; - }, - - // @method setRadius(radius: Number): this - // Sets the radius of a circle. Units are in meters. - setRadius: function (radius) { - this._mRadius = radius; - return this.redraw(); - }, - - // @method getRadius(): Number - // Returns the current radius of a circle. Units are in meters. - getRadius: function () { - return this._mRadius; - }, - - // @method getBounds(): LatLngBounds - // Returns the `LatLngBounds` of the path. - getBounds: function () { - var half = [this._radius, this._radiusY || this._radius]; - - return new LatLngBounds( - this._map.layerPointToLatLng(this._point.subtract(half)), - this._map.layerPointToLatLng(this._point.add(half))); - }, - - setStyle: Path.prototype.setStyle, - - _project: function () { - - var lng = this._latlng.lng, - lat = this._latlng.lat, - map = this._map, - crs = map.options.crs; - - if (crs.distance === Earth.distance) { - var d = Math.PI / 180, - latR = (this._mRadius / Earth.R) / d, - top = map.project([lat + latR, lng]), - bottom = map.project([lat - latR, lng]), - p = top.add(bottom).divideBy(2), - lat2 = map.unproject(p).lat, - lngR = Math.acos((Math.cos(latR * d) - Math.sin(lat * d) * Math.sin(lat2 * d)) / - (Math.cos(lat * d) * Math.cos(lat2 * d))) / d; - - if (isNaN(lngR) || lngR === 0) { - lngR = latR / Math.cos(Math.PI / 180 * lat); // Fallback for edge case, #2425 - } - - this._point = p.subtract(map.getPixelOrigin()); - this._radius = isNaN(lngR) ? 0 : Math.max(Math.round(p.x - map.project([lat2, lng - lngR]).x), 1); - this._radiusY = Math.max(Math.round(p.y - top.y), 1); - - } else { - var latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0])); - - this._point = map.latLngToLayerPoint(this._latlng); - this._radius = this._point.x - map.latLngToLayerPoint(latlng2).x; - } - - this._updateBounds(); - } -}); - -// @factory L.circle(latlng: LatLng, options?: Circle options) -// Instantiates a circle object given a geographical point, and an options object -// which contains the circle radius. -// @alternative -// @factory L.circle(latlng: LatLng, radius: Number, options?: Circle options) -// Obsolete way of instantiating a circle, for compatibility with 0.7.x code. -// Do not use in new applications or plugins. -function circle(latlng, options, legacyOptions) { - return new Circle(latlng, options, legacyOptions); -} - -/* - * @class Polyline - * @aka L.Polyline - * @inherits Path - * - * A class for drawing polyline overlays on a map. Extends `Path`. - * - * @example - * - * ```js - * // create a red polyline from an array of LatLng points - * var latlngs = [ - * [45.51, -122.68], - * [37.77, -122.43], - * [34.04, -118.2] - * ]; - * - * var polyline = L.polyline(latlngs, {color: 'red'}).addTo(map); - * - * // zoom the map to the polyline - * map.fitBounds(polyline.getBounds()); - * ``` - * - * You can also pass a multi-dimensional array to represent a `MultiPolyline` shape: - * - * ```js - * // create a red polyline from an array of arrays of LatLng points - * var latlngs = [ - * [[45.51, -122.68], - * [37.77, -122.43], - * [34.04, -118.2]], - * [[40.78, -73.91], - * [41.83, -87.62], - * [32.76, -96.72]] - * ]; - * ``` - */ - - -var Polyline = Path.extend({ - - // @section - // @aka Polyline options - options: { - // @option smoothFactor: Number = 1.0 - // How much to simplify the polyline on each zoom level. More means - // better performance and smoother look, and less means more accurate representation. - smoothFactor: 1.0, - - // @option noClip: Boolean = false - // Disable polyline clipping. - noClip: false - }, - - initialize: function (latlngs, options) { - setOptions(this, options); - this._setLatLngs(latlngs); - }, - - // @method getLatLngs(): LatLng[] - // Returns an array of the points in the path, or nested arrays of points in case of multi-polyline. - getLatLngs: function () { - return this._latlngs; - }, - - // @method setLatLngs(latlngs: LatLng[]): this - // Replaces all the points in the polyline with the given array of geographical points. - setLatLngs: function (latlngs) { - this._setLatLngs(latlngs); - return this.redraw(); - }, - - // @method isEmpty(): Boolean - // Returns `true` if the Polyline has no LatLngs. - isEmpty: function () { - return !this._latlngs.length; - }, - - closestLayerPoint: function (p) { - var minDistance = Infinity, - minPoint = null, - closest = _sqClosestPointOnSegment, - p1, p2; - - for (var j = 0, jLen = this._parts.length; j < jLen; j++) { - var points = this._parts[j]; - - for (var i = 1, len = points.length; i < len; i++) { - p1 = points[i - 1]; - p2 = points[i]; - - var sqDist = closest(p, p1, p2, true); - - if (sqDist < minDistance) { - minDistance = sqDist; - minPoint = closest(p, p1, p2); - } - } - } - if (minPoint) { - minPoint.distance = Math.sqrt(minDistance); - } - return minPoint; - }, - - // @method getCenter(): LatLng - // Returns the center ([centroid](http://en.wikipedia.org/wiki/Centroid)) of the polyline. - getCenter: function () { - // throws error when not yet added to map as this center calculation requires projected coordinates - if (!this._map) { - throw new Error('Must add layer to map before using getCenter()'); - } - - var i, halfDist, segDist, dist, p1, p2, ratio, - points = this._rings[0], - len = points.length; - - if (!len) { return null; } - - // polyline centroid algorithm; only uses the first ring if there are multiple - - for (i = 0, halfDist = 0; i < len - 1; i++) { - halfDist += points[i].distanceTo(points[i + 1]) / 2; - } - - // The line is so small in the current view that all points are on the same pixel. - if (halfDist === 0) { - return this._map.layerPointToLatLng(points[0]); - } - - for (i = 0, dist = 0; i < len - 1; i++) { - p1 = points[i]; - p2 = points[i + 1]; - segDist = p1.distanceTo(p2); - dist += segDist; - - if (dist > halfDist) { - ratio = (dist - halfDist) / segDist; - return this._map.layerPointToLatLng([ - p2.x - ratio * (p2.x - p1.x), - p2.y - ratio * (p2.y - p1.y) - ]); - } - } - }, - - // @method getBounds(): LatLngBounds - // Returns the `LatLngBounds` of the path. - getBounds: function () { - return this._bounds; - }, - - // @method addLatLng(latlng: LatLng, latlngs? LatLng[]): this - // Adds a given point to the polyline. By default, adds to the first ring of - // the polyline in case of a multi-polyline, but can be overridden by passing - // a specific ring as a LatLng array (that you can earlier access with [`getLatLngs`](#polyline-getlatlngs)). - addLatLng: function (latlng, latlngs) { - latlngs = latlngs || this._defaultShape(); - latlng = toLatLng(latlng); - latlngs.push(latlng); - this._bounds.extend(latlng); - return this.redraw(); - }, - - _setLatLngs: function (latlngs) { - this._bounds = new LatLngBounds(); - this._latlngs = this._convertLatLngs(latlngs); - }, - - _defaultShape: function () { - return isFlat(this._latlngs) ? this._latlngs : this._latlngs[0]; - }, - - // recursively convert latlngs input into actual LatLng instances; calculate bounds along the way - _convertLatLngs: function (latlngs) { - var result = [], - flat = isFlat(latlngs); - - for (var i = 0, len = latlngs.length; i < len; i++) { - if (flat) { - result[i] = toLatLng(latlngs[i]); - this._bounds.extend(result[i]); - } else { - result[i] = this._convertLatLngs(latlngs[i]); - } - } - - return result; - }, - - _project: function () { - var pxBounds = new Bounds(); - this._rings = []; - this._projectLatlngs(this._latlngs, this._rings, pxBounds); - - var w = this._clickTolerance(), - p = new Point(w, w); - - if (this._bounds.isValid() && pxBounds.isValid()) { - pxBounds.min._subtract(p); - pxBounds.max._add(p); - this._pxBounds = pxBounds; - } - }, - - // recursively turns latlngs into a set of rings with projected coordinates - _projectLatlngs: function (latlngs, result, projectedBounds) { - var flat = latlngs[0] instanceof LatLng, - len = latlngs.length, - i, ring; - - if (flat) { - ring = []; - for (i = 0; i < len; i++) { - ring[i] = this._map.latLngToLayerPoint(latlngs[i]); - projectedBounds.extend(ring[i]); - } - result.push(ring); - } else { - for (i = 0; i < len; i++) { - this._projectLatlngs(latlngs[i], result, projectedBounds); - } - } - }, - - // clip polyline by renderer bounds so that we have less to render for performance - _clipPoints: function () { - var bounds = this._renderer._bounds; - - this._parts = []; - if (!this._pxBounds || !this._pxBounds.intersects(bounds)) { - return; - } - - if (this.options.noClip) { - this._parts = this._rings; - return; - } - - var parts = this._parts, - i, j, k, len, len2, segment, points; - - for (i = 0, k = 0, len = this._rings.length; i < len; i++) { - points = this._rings[i]; - - for (j = 0, len2 = points.length; j < len2 - 1; j++) { - segment = clipSegment(points[j], points[j + 1], bounds, j, true); - - if (!segment) { continue; } - - parts[k] = parts[k] || []; - parts[k].push(segment[0]); - - // if segment goes out of screen, or it's the last one, it's the end of the line part - if ((segment[1] !== points[j + 1]) || (j === len2 - 2)) { - parts[k].push(segment[1]); - k++; - } - } - } - }, - - // simplify each clipped part of the polyline for performance - _simplifyPoints: function () { - var parts = this._parts, - tolerance = this.options.smoothFactor; - - for (var i = 0, len = parts.length; i < len; i++) { - parts[i] = simplify(parts[i], tolerance); - } - }, - - _update: function () { - if (!this._map) { return; } - - this._clipPoints(); - this._simplifyPoints(); - this._updatePath(); - }, - - _updatePath: function () { - this._renderer._updatePoly(this); - }, - - // Needed by the `Canvas` renderer for interactivity - _containsPoint: function (p, closed) { - var i, j, k, len, len2, part, - w = this._clickTolerance(); - - if (!this._pxBounds || !this._pxBounds.contains(p)) { return false; } - - // hit detection for polylines - for (i = 0, len = this._parts.length; i < len; i++) { - part = this._parts[i]; - - for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) { - if (!closed && (j === 0)) { continue; } - - if (pointToSegmentDistance(p, part[k], part[j]) <= w) { - return true; - } - } - } - return false; - } -}); - -// @factory L.polyline(latlngs: LatLng[], options?: Polyline options) -// Instantiates a polyline object given an array of geographical points and -// optionally an options object. You can create a `Polyline` object with -// multiple separate lines (`MultiPolyline`) by passing an array of arrays -// of geographic points. -function polyline(latlngs, options) { - return new Polyline(latlngs, options); -} - -// Retrocompat. Allow plugins to support Leaflet versions before and after 1.1. -Polyline._flat = _flat; - -/* - * @class Polygon - * @aka L.Polygon - * @inherits Polyline - * - * A class for drawing polygon overlays on a map. Extends `Polyline`. - * - * Note that points you pass when creating a polygon shouldn't have an additional last point equal to the first one — it's better to filter out such points. - * - * - * @example - * - * ```js - * // create a red polygon from an array of LatLng points - * var latlngs = [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]]; - * - * var polygon = L.polygon(latlngs, {color: 'red'}).addTo(map); - * - * // zoom the map to the polygon - * map.fitBounds(polygon.getBounds()); - * ``` - * - * You can also pass an array of arrays of latlngs, with the first array representing the outer shape and the other arrays representing holes in the outer shape: - * - * ```js - * var latlngs = [ - * [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring - * [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole - * ]; - * ``` - * - * Additionally, you can pass a multi-dimensional array to represent a MultiPolygon shape. - * - * ```js - * var latlngs = [ - * [ // first polygon - * [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring - * [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole - * ], - * [ // second polygon - * [[41, -111.03],[45, -111.04],[45, -104.05],[41, -104.05]] - * ] - * ]; - * ``` - */ - -var Polygon = Polyline.extend({ - - options: { - fill: true - }, - - isEmpty: function () { - return !this._latlngs.length || !this._latlngs[0].length; - }, - - getCenter: function () { - // throws error when not yet added to map as this center calculation requires projected coordinates - if (!this._map) { - throw new Error('Must add layer to map before using getCenter()'); - } - - var i, j, p1, p2, f, area, x, y, center, - points = this._rings[0], - len = points.length; - - if (!len) { return null; } - - // polygon centroid algorithm; only uses the first ring if there are multiple - - area = x = y = 0; - - for (i = 0, j = len - 1; i < len; j = i++) { - p1 = points[i]; - p2 = points[j]; - - f = p1.y * p2.x - p2.y * p1.x; - x += (p1.x + p2.x) * f; - y += (p1.y + p2.y) * f; - area += f * 3; - } - - if (area === 0) { - // Polygon is so small that all points are on same pixel. - center = points[0]; - } else { - center = [x / area, y / area]; - } - return this._map.layerPointToLatLng(center); - }, - - _convertLatLngs: function (latlngs) { - var result = Polyline.prototype._convertLatLngs.call(this, latlngs), - len = result.length; - - // remove last point if it equals first one - if (len >= 2 && result[0] instanceof LatLng && result[0].equals(result[len - 1])) { - result.pop(); - } - return result; - }, - - _setLatLngs: function (latlngs) { - Polyline.prototype._setLatLngs.call(this, latlngs); - if (isFlat(this._latlngs)) { - this._latlngs = [this._latlngs]; - } - }, - - _defaultShape: function () { - return isFlat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0]; - }, - - _clipPoints: function () { - // polygons need a different clipping algorithm so we redefine that - - var bounds = this._renderer._bounds, - w = this.options.weight, - p = new Point(w, w); - - // increase clip padding by stroke width to avoid stroke on clip edges - bounds = new Bounds(bounds.min.subtract(p), bounds.max.add(p)); - - this._parts = []; - if (!this._pxBounds || !this._pxBounds.intersects(bounds)) { - return; - } - - if (this.options.noClip) { - this._parts = this._rings; - return; - } - - for (var i = 0, len = this._rings.length, clipped; i < len; i++) { - clipped = clipPolygon(this._rings[i], bounds, true); - if (clipped.length) { - this._parts.push(clipped); - } - } - }, - - _updatePath: function () { - this._renderer._updatePoly(this, true); - }, - - // Needed by the `Canvas` renderer for interactivity - _containsPoint: function (p) { - var inside = false, - part, p1, p2, i, j, k, len, len2; - - if (!this._pxBounds.contains(p)) { return false; } - - // ray casting algorithm for detecting if point is in polygon - for (i = 0, len = this._parts.length; i < len; i++) { - part = this._parts[i]; - - for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) { - p1 = part[j]; - p2 = part[k]; - - if (((p1.y > p.y) !== (p2.y > p.y)) && (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) { - inside = !inside; - } - } - } - - // also check if it's on polygon stroke - return inside || Polyline.prototype._containsPoint.call(this, p, true); - } - -}); - - -// @factory L.polygon(latlngs: LatLng[], options?: Polyline options) -function polygon(latlngs, options) { - return new Polygon(latlngs, options); -} - -/* - * @class GeoJSON - * @aka L.GeoJSON - * @inherits FeatureGroup - * - * Represents a GeoJSON object or an array of GeoJSON objects. Allows you to parse - * GeoJSON data and display it on the map. Extends `FeatureGroup`. - * - * @example - * - * ```js - * L.geoJSON(data, { - * style: function (feature) { - * return {color: feature.properties.color}; - * } - * }).bindPopup(function (layer) { - * return layer.feature.properties.description; - * }).addTo(map); - * ``` - */ - -var GeoJSON = FeatureGroup.extend({ - - /* @section - * @aka GeoJSON options - * - * @option pointToLayer: Function = * - * A `Function` defining how GeoJSON points spawn Leaflet layers. It is internally - * called when data is added, passing the GeoJSON point feature and its `LatLng`. - * The default is to spawn a default `Marker`: - * ```js - * function(geoJsonPoint, latlng) { - * return L.marker(latlng); - * } - * ``` - * - * @option style: Function = * - * A `Function` defining the `Path options` for styling GeoJSON lines and polygons, - * called internally when data is added. - * The default value is to not override any defaults: - * ```js - * function (geoJsonFeature) { - * return {} - * } - * ``` - * - * @option onEachFeature: Function = * - * A `Function` that will be called once for each created `Feature`, after it has - * been created and styled. Useful for attaching events and popups to features. - * The default is to do nothing with the newly created layers: - * ```js - * function (feature, layer) {} - * ``` - * - * @option filter: Function = * - * A `Function` that will be used to decide whether to include a feature or not. - * The default is to include all features: - * ```js - * function (geoJsonFeature) { - * return true; - * } - * ``` - * Note: dynamically changing the `filter` option will have effect only on newly - * added data. It will _not_ re-evaluate already included features. - * - * @option coordsToLatLng: Function = * - * A `Function` that will be used for converting GeoJSON coordinates to `LatLng`s. - * The default is the `coordsToLatLng` static method. - */ - - initialize: function (geojson, options) { - setOptions(this, options); - - this._layers = {}; - - if (geojson) { - this.addData(geojson); - } - }, - - // @method addData( data ): this - // Adds a GeoJSON object to the layer. - addData: function (geojson) { - var features = isArray(geojson) ? geojson : geojson.features, - i, len, feature; - - if (features) { - for (i = 0, len = features.length; i < len; i++) { - // only add this if geometry or geometries are set and not null - feature = features[i]; - if (feature.geometries || feature.geometry || feature.features || feature.coordinates) { - this.addData(feature); - } - } - return this; - } - - var options = this.options; - - if (options.filter && !options.filter(geojson)) { return this; } - - var layer = geometryToLayer(geojson, options); - if (!layer) { - return this; - } - layer.feature = asFeature(geojson); - - layer.defaultOptions = layer.options; - this.resetStyle(layer); - - if (options.onEachFeature) { - options.onEachFeature(geojson, layer); - } - - return this.addLayer(layer); - }, - - // @method resetStyle( layer ): this - // Resets the given vector layer's style to the original GeoJSON style, useful for resetting style after hover events. - resetStyle: function (layer) { - // reset any custom styles - layer.options = extend({}, layer.defaultOptions); - this._setLayerStyle(layer, this.options.style); - return this; - }, - - // @method setStyle( style ): this - // Changes styles of GeoJSON vector layers with the given style function. - setStyle: function (style) { - return this.eachLayer(function (layer) { - this._setLayerStyle(layer, style); - }, this); - }, - - _setLayerStyle: function (layer, style) { - if (typeof style === 'function') { - style = style(layer.feature); - } - if (layer.setStyle) { - layer.setStyle(style); - } - } -}); - -// @section -// There are several static functions which can be called without instantiating L.GeoJSON: - -// @function geometryToLayer(featureData: Object, options?: GeoJSON options): Layer -// Creates a `Layer` from a given GeoJSON feature. Can use a custom -// [`pointToLayer`](#geojson-pointtolayer) and/or [`coordsToLatLng`](#geojson-coordstolatlng) -// functions if provided as options. -function geometryToLayer(geojson, options) { - - var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson, - coords = geometry ? geometry.coordinates : null, - layers = [], - pointToLayer = options && options.pointToLayer, - _coordsToLatLng = options && options.coordsToLatLng || coordsToLatLng, - latlng, latlngs, i, len; - - if (!coords && !geometry) { - return null; - } - - switch (geometry.type) { - case 'Point': - latlng = _coordsToLatLng(coords); - return pointToLayer ? pointToLayer(geojson, latlng) : new Marker(latlng); - - case 'MultiPoint': - for (i = 0, len = coords.length; i < len; i++) { - latlng = _coordsToLatLng(coords[i]); - layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new Marker(latlng)); - } - return new FeatureGroup(layers); - - case 'LineString': - case 'MultiLineString': - latlngs = coordsToLatLngs(coords, geometry.type === 'LineString' ? 0 : 1, _coordsToLatLng); - return new Polyline(latlngs, options); - - case 'Polygon': - case 'MultiPolygon': - latlngs = coordsToLatLngs(coords, geometry.type === 'Polygon' ? 1 : 2, _coordsToLatLng); - return new Polygon(latlngs, options); - - case 'GeometryCollection': - for (i = 0, len = geometry.geometries.length; i < len; i++) { - var layer = geometryToLayer({ - geometry: geometry.geometries[i], - type: 'Feature', - properties: geojson.properties - }, options); - - if (layer) { - layers.push(layer); - } - } - return new FeatureGroup(layers); - - default: - throw new Error('Invalid GeoJSON object.'); - } -} - -// @function coordsToLatLng(coords: Array): LatLng -// Creates a `LatLng` object from an array of 2 numbers (longitude, latitude) -// or 3 numbers (longitude, latitude, altitude) used in GeoJSON for points. -function coordsToLatLng(coords) { - return new LatLng(coords[1], coords[0], coords[2]); -} - -// @function coordsToLatLngs(coords: Array, levelsDeep?: Number, coordsToLatLng?: Function): Array -// Creates a multidimensional array of `LatLng`s from a GeoJSON coordinates array. -// `levelsDeep` specifies the nesting level (0 is for an array of points, 1 for an array of arrays of points, etc., 0 by default). -// Can use a custom [`coordsToLatLng`](#geojson-coordstolatlng) function. -function coordsToLatLngs(coords, levelsDeep, _coordsToLatLng) { - var latlngs = []; - - for (var i = 0, len = coords.length, latlng; i < len; i++) { - latlng = levelsDeep ? - coordsToLatLngs(coords[i], levelsDeep - 1, _coordsToLatLng) : - (_coordsToLatLng || coordsToLatLng)(coords[i]); - - latlngs.push(latlng); - } - - return latlngs; -} - -// @function latLngToCoords(latlng: LatLng, precision?: Number): Array -// Reverse of [`coordsToLatLng`](#geojson-coordstolatlng) -function latLngToCoords(latlng, precision) { - precision = typeof precision === 'number' ? precision : 6; - return latlng.alt !== undefined ? - [formatNum(latlng.lng, precision), formatNum(latlng.lat, precision), formatNum(latlng.alt, precision)] : - [formatNum(latlng.lng, precision), formatNum(latlng.lat, precision)]; -} - -// @function latLngsToCoords(latlngs: Array, levelsDeep?: Number, closed?: Boolean): Array -// Reverse of [`coordsToLatLngs`](#geojson-coordstolatlngs) -// `closed` determines whether the first point should be appended to the end of the array to close the feature, only used when `levelsDeep` is 0. False by default. -function latLngsToCoords(latlngs, levelsDeep, closed, precision) { - var coords = []; - - for (var i = 0, len = latlngs.length; i < len; i++) { - coords.push(levelsDeep ? - latLngsToCoords(latlngs[i], levelsDeep - 1, closed, precision) : - latLngToCoords(latlngs[i], precision)); - } - - if (!levelsDeep && closed) { - coords.push(coords[0]); - } - - return coords; -} - -function getFeature(layer, newGeometry) { - return layer.feature ? - extend({}, layer.feature, {geometry: newGeometry}) : - asFeature(newGeometry); -} - -// @function asFeature(geojson: Object): Object -// Normalize GeoJSON geometries/features into GeoJSON features. -function asFeature(geojson) { - if (geojson.type === 'Feature' || geojson.type === 'FeatureCollection') { - return geojson; - } - - return { - type: 'Feature', - properties: {}, - geometry: geojson - }; -} - -var PointToGeoJSON = { - toGeoJSON: function (precision) { - return getFeature(this, { - type: 'Point', - coordinates: latLngToCoords(this.getLatLng(), precision) - }); - } -}; - -// @namespace Marker -// @method toGeoJSON(): Object -// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the marker (as a GeoJSON `Point` Feature). -Marker.include(PointToGeoJSON); - -// @namespace CircleMarker -// @method toGeoJSON(): Object -// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the circle marker (as a GeoJSON `Point` Feature). -Circle.include(PointToGeoJSON); -CircleMarker.include(PointToGeoJSON); - - -// @namespace Polyline -// @method toGeoJSON(): Object -// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polyline (as a GeoJSON `LineString` or `MultiLineString` Feature). -Polyline.include({ - toGeoJSON: function (precision) { - var multi = !isFlat(this._latlngs); - - var coords = latLngsToCoords(this._latlngs, multi ? 1 : 0, false, precision); - - return getFeature(this, { - type: (multi ? 'Multi' : '') + 'LineString', - coordinates: coords - }); - } -}); - -// @namespace Polygon -// @method toGeoJSON(): Object -// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polygon (as a GeoJSON `Polygon` or `MultiPolygon` Feature). -Polygon.include({ - toGeoJSON: function (precision) { - var holes = !isFlat(this._latlngs), - multi = holes && !isFlat(this._latlngs[0]); - - var coords = latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true, precision); - - if (!holes) { - coords = [coords]; - } - - return getFeature(this, { - type: (multi ? 'Multi' : '') + 'Polygon', - coordinates: coords - }); - } -}); - - -// @namespace LayerGroup -LayerGroup.include({ - toMultiPoint: function (precision) { - var coords = []; - - this.eachLayer(function (layer) { - coords.push(layer.toGeoJSON(precision).geometry.coordinates); - }); - - return getFeature(this, { - type: 'MultiPoint', - coordinates: coords - }); - }, - - // @method toGeoJSON(): Object - // Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the layer group (as a GeoJSON `FeatureCollection`, `GeometryCollection`, or `MultiPoint`). - toGeoJSON: function (precision) { - - var type = this.feature && this.feature.geometry && this.feature.geometry.type; - - if (type === 'MultiPoint') { - return this.toMultiPoint(precision); - } - - var isGeometryCollection = type === 'GeometryCollection', - jsons = []; - - this.eachLayer(function (layer) { - if (layer.toGeoJSON) { - var json = layer.toGeoJSON(precision); - if (isGeometryCollection) { - jsons.push(json.geometry); - } else { - var feature = asFeature(json); - // Squash nested feature collections - if (feature.type === 'FeatureCollection') { - jsons.push.apply(jsons, feature.features); - } else { - jsons.push(feature); - } - } - } - }); - - if (isGeometryCollection) { - return getFeature(this, { - geometries: jsons, - type: 'GeometryCollection' - }); - } - - return { - type: 'FeatureCollection', - features: jsons - }; - } -}); - -// @namespace GeoJSON -// @factory L.geoJSON(geojson?: Object, options?: GeoJSON options) -// Creates a GeoJSON layer. Optionally accepts an object in -// [GeoJSON format](http://geojson.org/geojson-spec.html) to display on the map -// (you can alternatively add it later with `addData` method) and an `options` object. -function geoJSON(geojson, options) { - return new GeoJSON(geojson, options); -} - -// Backward compatibility. -var geoJson = geoJSON; - -/* - * @class ImageOverlay - * @aka L.ImageOverlay - * @inherits Interactive layer - * - * Used to load and display a single image over specific bounds of the map. Extends `Layer`. - * - * @example - * - * ```js - * var imageUrl = 'http://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg', - * imageBounds = [[40.712216, -74.22655], [40.773941, -74.12544]]; - * L.imageOverlay(imageUrl, imageBounds).addTo(map); - * ``` - */ - -var ImageOverlay = Layer.extend({ - - // @section - // @aka ImageOverlay options - options: { - // @option opacity: Number = 1.0 - // The opacity of the image overlay. - opacity: 1, - - // @option alt: String = '' - // Text for the `alt` attribute of the image (useful for accessibility). - alt: '', - - // @option interactive: Boolean = false - // If `true`, the image overlay will emit [mouse events](#interactive-layer) when clicked or hovered. - interactive: false, - - // @option crossOrigin: Boolean = false - // If true, the image will have its crossOrigin attribute set to ''. This is needed if you want to access image pixel data. - crossOrigin: false, - - // @option errorOverlayUrl: String = '' - // URL to the overlay image to show in place of the overlay that failed to load. - errorOverlayUrl: '', - - // @option zIndex: Number = 1 - // The explicit [zIndex](https://developer.mozilla.org/docs/Web/CSS/CSS_Positioning/Understanding_z_index) of the tile layer. - zIndex: 1, - - // @option className: String = '' - // A custom class name to assign to the image. Empty by default. - className: '', - }, - - initialize: function (url, bounds, options) { // (String, LatLngBounds, Object) - this._url = url; - this._bounds = toLatLngBounds(bounds); - - setOptions(this, options); - }, - - onAdd: function () { - if (!this._image) { - this._initImage(); - - if (this.options.opacity < 1) { - this._updateOpacity(); - } - } - - if (this.options.interactive) { - addClass(this._image, 'leaflet-interactive'); - this.addInteractiveTarget(this._image); - } - - this.getPane().appendChild(this._image); - this._reset(); - }, - - onRemove: function () { - remove(this._image); - if (this.options.interactive) { - this.removeInteractiveTarget(this._image); - } - }, - - // @method setOpacity(opacity: Number): this - // Sets the opacity of the overlay. - setOpacity: function (opacity) { - this.options.opacity = opacity; - - if (this._image) { - this._updateOpacity(); - } - return this; - }, - - setStyle: function (styleOpts) { - if (styleOpts.opacity) { - this.setOpacity(styleOpts.opacity); - } - return this; - }, - - // @method bringToFront(): this - // Brings the layer to the top of all overlays. - bringToFront: function () { - if (this._map) { - toFront(this._image); - } - return this; - }, - - // @method bringToBack(): this - // Brings the layer to the bottom of all overlays. - bringToBack: function () { - if (this._map) { - toBack(this._image); - } - return this; - }, - - // @method setUrl(url: String): this - // Changes the URL of the image. - setUrl: function (url) { - this._url = url; - - if (this._image) { - this._image.src = url; - } - return this; - }, - - // @method setBounds(bounds: LatLngBounds): this - // Update the bounds that this ImageOverlay covers - setBounds: function (bounds) { - this._bounds = toLatLngBounds(bounds); - - if (this._map) { - this._reset(); - } - return this; - }, - - getEvents: function () { - var events = { - zoom: this._reset, - viewreset: this._reset - }; - - if (this._zoomAnimated) { - events.zoomanim = this._animateZoom; - } - - return events; - }, - - // @method: setZIndex(value: Number) : this - // Changes the [zIndex](#imageoverlay-zindex) of the image overlay. - setZIndex: function (value) { - this.options.zIndex = value; - this._updateZIndex(); - return this; - }, - - // @method getBounds(): LatLngBounds - // Get the bounds that this ImageOverlay covers - getBounds: function () { - return this._bounds; - }, - - // @method getElement(): HTMLElement - // Returns the instance of [`HTMLImageElement`](https://developer.mozilla.org/docs/Web/API/HTMLImageElement) - // used by this overlay. - getElement: function () { - return this._image; - }, - - _initImage: function () { - var img = this._image = create$1('img', - 'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : '') + - (this.options.className || '')); - - img.onselectstart = falseFn; - img.onmousemove = falseFn; - - // @event load: Event - // Fired when the ImageOverlay layer has loaded its image - img.onload = bind(this.fire, this, 'load'); - img.onerror = bind(this._overlayOnError, this, 'error'); - - if (this.options.crossOrigin) { - img.crossOrigin = ''; - } - - if (this.options.zIndex) { - this._updateZIndex(); - } - - img.src = this._url; - img.alt = this.options.alt; - }, - - _animateZoom: function (e) { - var scale = this._map.getZoomScale(e.zoom), - offset = this._map._latLngBoundsToNewLayerBounds(this._bounds, e.zoom, e.center).min; - - setTransform(this._image, offset, scale); - }, - - _reset: function () { - var image = this._image, - bounds = new Bounds( - this._map.latLngToLayerPoint(this._bounds.getNorthWest()), - this._map.latLngToLayerPoint(this._bounds.getSouthEast())), - size = bounds.getSize(); - - setPosition(image, bounds.min); - - image.style.width = size.x + 'px'; - image.style.height = size.y + 'px'; - }, - - _updateOpacity: function () { - setOpacity(this._image, this.options.opacity); - }, - - _updateZIndex: function () { - if (this._image && this.options.zIndex !== undefined && this.options.zIndex !== null) { - this._image.style.zIndex = this.options.zIndex; - } - }, - - _overlayOnError: function () { - // @event error: Event - // Fired when the ImageOverlay layer has loaded its image - this.fire('error'); - - var errorUrl = this.options.errorOverlayUrl; - if (errorUrl && this._url !== errorUrl) { - this._url = errorUrl; - this._image.src = errorUrl; - } - } -}); - -// @factory L.imageOverlay(imageUrl: String, bounds: LatLngBounds, options?: ImageOverlay options) -// Instantiates an image overlay object given the URL of the image and the -// geographical bounds it is tied to. -var imageOverlay = function (url, bounds, options) { - return new ImageOverlay(url, bounds, options); -}; - -/* - * @class VideoOverlay - * @aka L.VideoOverlay - * @inherits ImageOverlay - * - * Used to load and display a video player over specific bounds of the map. Extends `ImageOverlay`. - * - * A video overlay uses the [`