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cartodb/lib/assets/javascripts/cdb/examples/slider/js/jquery.beforeafter-map-0.11-CDB.js
zhongjin a96ef233c9 cdb
2020-06-15 12:07:54 +08:00

231 lines
11 KiB
JavaScript
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/* jQuery beforeafter-map/CartoDB plugin
* @author @cartodb - http://www.twitter.com/cartodb
* @version 0.1
* @date November 12, 2014
* category jQuery plugin
* @license CC Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0) - http://creativecommons.org/licenses/by-nc-sa/3.0/
Original code altered from:
* jQuery beforeafter-map plugin
* @author @grahamimac - http://www.twitter.com/grahamimac
* @version 0.11
* @date December 17, 2013
* @category jQuery plugin
* @license CC Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0) - http://creativecommons.org/licenses/by-nc-sa/3.0/
Original code altered from:
* jQuery beforeafter plugin
* @author admin@catchmyfame.com - http://www.catchmyfame.com
* @version 1.4
* @date September 19, 2011
* @category jQuery plugin
* @copyright (c) 2009 admin@catchmyfame.com (www.catchmyfame.com)
* @license CC Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0) - http://creativecommons.org/licenses/by-nc-sa/3.0/
*/
(function($){
$.fn.extend({
beforeAfter: function(_before_,_after_,options)
{
var defaults =
{
animateIntro : false,
introDelay : 1000,
introDuration : 1000,
introPosition : .5,
showFullLinks : true,
beforeLinkText: 'Show only before',
afterLinkText: 'Show only after',
imagePath : './css/images/',
cursor: 'pointer',
clickSpeed: 600,
linkDisplaySpeed: 200,
dividerColor: '#888',
enableKeyboard: false,
keypressAmount: 20,
onReady: function(){},
changeOnResize: true,
permArrows: false,
arrowTop: 0.5,
arrowLeftOffset: 0,
arrowRightOffset: 0
};
var options = $.extend(defaults, options);
if (!_before_ || !_after_){
console.log('Error: pass variables used to create the map in .beforeAfter argument. E.g. $("map-container").beforeAfter(before,after,options).');
return;
}
var randID = Math.round(Math.random()*100000000);
return this.each(function() {
var o=options;
var obj = $(this);
var mapWidth = $('div:first', obj).width();
var mapHeight = $('div:first', obj).height();
var lArrOffsetStatic = -24;
var rArrOffsetStatic = 24;
$(obj)
.width(mapWidth)
.height(mapHeight)
.css({'overflow':'hidden','position':'relative','padding':'0'});
var _bSelect_ = $('div:first', obj), _aSelect_ = $('div:last', obj),
_bID_ = $(_before_._container).attr('id'), _aID_ = $(_after_._container).attr('id');
_before_.options.inertia = false;
_after_.options.inertia = false;
// Create an inner div wrapper (dragwrapper) to hold the images.
$(obj).prepend('<div id="dragwrapper'+randID+'"><div id="drag'+randID+'"><img width="8" height="56" alt="handle" src="'+o.imagePath+'handle.gif" id="handle'+randID+'" /></div></div>'); // Create drag handle
$('#dragwrapper'+randID).css({'opacity':.25,'position':'absolute','padding':'0','left':(mapWidth*o.introPosition)-($('#handle'+randID).width()/2)+'px','z-index':'20'}).width($('#handle'+randID).width()).height(mapHeight);
$(_before_._container).height(mapHeight).width(mapWidth*o.introPosition).css({'position':'absolute','overflow':'hidden','left':'0px','z-index':'10'}); // Set CSS properties of the before map div
$(_after_._container).height(mapHeight).width(mapWidth).css({'position':'absolute','overflow':'hidden','right':'0px'}); // Set CSS properties of the after map div
$('#drag'+randID).width(2).height(mapHeight).css({'background':o.dividerColor,'position':'absolute','left':'3px'}); // Set drag handle CSS properties
$(_before_._container).css({'position':'absolute','top':'0px','left':'0px'});
$(_after_._container).css({'position':'absolute','top':'0px','right':'0px'});
$('#handle'+randID).css({'z-index':'100','position':'relative','cursor':o.cursor,'top':(mapHeight/2)-($('#handle'+randID).height()/2)+'px','left':'-3px'})
$(obj).append('<img src="'+o.imagePath+'lt-small.png" id="lt-arrow'+randID+'"><img src="'+o.imagePath+'rt-small.png" id="rt-arrow'+randID+'">');
if(o.showFullLinks)
{
$(obj).after('<div class="balinks" id="links'+randID+'" style="position:relative"><span class="balinks"><a id="showleft'+randID+'" href="javascript:void(0)">'+o.beforeLinkText+'</a></span><span class="balinks"><a id="showright'+randID+'" href="javascript:void(0)">'+o.afterLinkText+'</a></span></div>');
$('#links'+randID).width(mapWidth);
$('#showleft'+randID).css({'position':'absolute','left':'0px'}).click(function(){
$('div:eq(2)', obj).animate({width:mapWidth},o.linkDisplaySpeed);
$('#dragwrapper'+randID).animate({left:mapWidth-$('#dragwrapper'+randID).width()+'px'},o.linkDisplaySpeed);
});
$('#showright'+randID).css({'position':'absolute','right':'0px'}).click(function(){
$('div:eq(2)', obj).animate({width:0},o.linkDisplaySpeed);
$('#dragwrapper'+randID).animate({left:'0px'},o.linkDisplaySpeed);
});
}
// Custom for Our Changing Cities
if (o.changeOnResize){
var cInt;
$(window).on('orientationchange pageshow resize', function () {
var id = o.thisID;
var center = [_after_.getCenter().lat, _after_.getCenter().lng], zoom = _after_.getZoom(),
w = $(obj).width();
$(_before_._container).width(w);
$(_after_._container).width(w);
_before_.invalidateSize();
_after_.invalidateSize();
clearInterval(cInt);
cInt = setInterval(function(){
$(_before_._container).width(parseInt( $('#dragwrapper'+randID).css('left') ) + 4 );
if ($(_before_._container).width() != w){ clearInterval(cInt); }
}, 100);
});
}
if(o.enableKeyboard)
{
$(document).keydown(function(event){
if(event.keyCode == 39)
{
if( (parseInt($('#dragwrapper'+randID).css('left'))+parseInt($('#dragwrapper'+randID).width()) + o.keypressAmount) <= mapWidth )
{
$('#dragwrapper'+randID).css('left', parseInt( $('#dragwrapper'+randID).css('left') ) + o.keypressAmount + 'px');
$('div:eq(2)', obj).width( parseInt( $('div:eq(2)', obj).width() ) + o.keypressAmount + 'px' );
}
else
{
$('#dragwrapper'+randID).css('left', mapWidth - parseInt( $('#dragwrapper'+randID).width() ) + 'px');
$('div:eq(2)', obj).width( mapWidth - parseInt( $('#dragwrapper'+randID).width() )/2 + 'px' );
}
}
if(event.keyCode == 37)
{
if( (parseInt($('#dragwrapper'+randID).css('left')) - o.keypressAmount) >= 0 )
{
$('#dragwrapper'+randID).css('left', parseInt( $('#dragwrapper'+randID).css('left') ) - o.keypressAmount + 'px');
$('div:eq(2)', obj).width( parseInt( $('div:eq(2)', obj).width() ) - o.keypressAmount + 'px' );
}
else
{
$('#dragwrapper'+randID).css('left', '0px');
$('div:eq(2)', obj).width($('#dragwrapper'+randID).width()/2);
}
}
});
}
$('#dragwrapper'+randID).draggable( { containment:obj,drag:drag,stop:drag }).css('-ms-touch-action', 'none');
function drag()
{
if (!o.permArrows){
$('#lt-arrow'+randID+', #rt-arrow'+randID).stop().css('opacity',0);
}
$('div:eq(2)', obj).width( parseInt( $(this).css('left') ) + 4 );
if (o.permArrows){
$('#lt-arrow'+randID).css({'z-index':'20','position':'absolute','top':mapHeight*o.arrowTop-$('#lt-arrow'+randID).height()/2+'px','left':parseInt($('#dragwrapper'+randID).css('left'))+o.arrowLeftOffset+lArrOffsetStatic+'px'});
$('#rt-arrow'+randID).css({'z-index':'20','position':'absolute','top':mapHeight*o.arrowTop-$('#lt-arrow'+randID).height()/2+'px','left':parseInt($('#dragwrapper'+randID).css('left'))+o.arrowRightOffset+rArrOffsetStatic+'px'});
}
}
if(o.animateIntro)
{
$('div:eq(2)', obj).width(mapWidth);
$('#dragwrapper'+randID).css('left',mapWidth-($('#dragwrapper'+randID).width()/2)+'px');
setTimeout(function(){
$('#dragwrapper'+randID).css({'opacity':1}).animate({'left':(mapWidth*o.introPosition)-($('#dragwrapper'+randID).width()/2)+'px'},o.introDuration,function(){$('#dragwrapper'+randID).animate({'opacity':.25},1000)});
$('div:eq(2)', obj).width(mapWidth).animate({'width':mapWidth*o.introPosition+'px'},o.introDuration,function(){clickit();o.onReady.call(this);});
},o.introDelay);
}
else
{
clickit();
o.onReady.call(this);
}
function clickit()
{
if (o.permArrows){
$('#lt-arrow'+randID).css({'z-index':'20','position':'absolute','top':mapHeight*o.arrowTop-$('#lt-arrow'+randID).height()/2+'px','left':parseInt($('#dragwrapper'+randID).css('left'))+o.arrowLeftOffset+lArrOffsetStatic+'px'});
$('#rt-arrow'+randID).css({'z-index':'20','position':'absolute','top':mapHeight*o.arrowTop-$('#rt-arrow'+randID).height()/2+'px','left':parseInt($('#dragwrapper'+randID).css('left'))+o.arrowRightOffset+rArrOffsetStatic+'px'});
}
$(obj).hover(function(){
if (!o.permArrows){
$('#lt-arrow'+randID).stop().css({'z-index':'20','position':'absolute','top':mapHeight*o.arrowTop-$('#lt-arrow'+randID).height()/2+'px','left':parseInt($('#dragwrapper'+randID).css('left'))+o.arrowLeftOffset+lArrOffsetStatic+6+'px'}).animate({opacity:1,left:parseInt($('#lt-arrow'+randID).css('left'))-6+'px'},200);
$('#rt-arrow'+randID).stop().css({'position':'absolute','top':mapHeight*o.arrowTop-$('#lt-arrow'+randID).height()/2+'px','left':parseInt($('#dragwrapper'+randID).css('left'))+o.arrowRightOffset+rArrOffsetStatic-6+'px'}).animate({opacity:1,left:parseInt($('#rt-arrow'+randID).css('left'))+6+'px'},200);
}
$('#dragwrapper'+randID).animate({'opacity':1},200);
},function(){
if (!o.permArrows){
$('#lt-arrow'+randID).animate({opacity:0,left:parseInt($('#lt-arrow'+randID).css('left'))+o.arrowLeftOffset-6+'px'},350);
$('#rt-arrow'+randID).animate({opacity:0,left:parseInt($('#rt-arrow'+randID).css('left'))+o.arrowRightOffset+6+'px'},350);
}
$('#dragwrapper'+randID).animate({'opacity':.25},350);
}
);
$(obj).one('mousemove', function(){$('#dragwrapper'+randID).stop().animate({'opacity':1},500);}); // If the mouse is over the container and we animate the intro, we run this to change the opacity when the mouse moves since the hover event doesnt get triggered yet
}
// Pan and zoom other map when one map pans/zooms
//_before_.on('dragend', _mapMove_).on('zoomend', _mapMove_);
//_after_.on('dragend', _mapMove_).on('zoomend', _mapMove_);
_before_.on('drag', _mapMove_).on('zoomend', _mapMove_);
_after_.on('drag', _mapMove_).on('zoomend', _mapMove_);
function _mapMove_(e)
{
console.log('moving...');
console.log(o.on_event)
var zoom = this.getZoom(),
latlng = this.getCenter();
latlng = [latlng.lat,latlng.lng];
var thisID = $(this._container).attr('id');
if (thisID == _bID_){ _after_.setView(latlng,zoom); }
else if (thisID == _aID_){ _before_.setView(latlng,zoom,{animate:false}); }
else { console.log('Error: Please report this as a bug'); }
}
});
}
});
})(jQuery);
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