Initial commit

lib/assets/javascripts/builder/components/code-mirror/hint/custom-list-hint.js

@@ -0,0 +1,95 @@
+var _ = require('underscore');
+
+module.exports = function (CodeMirror) {
+  var Pos = CodeMirror.Pos;
+
+  function arrayContains (arr, item) {
+    return arr.indexOf(item) !== -1;
+  }
+
+  function scriptHint (editor, keywords, getToken, options) {
+    // Find the token at the cursor
+    var cur = editor.getCursor();
+    var token = getToken(editor, cur);
+    var tprop = token;
+    var context = [];
+    token.state = CodeMirror.innerMode(editor.getMode(), token.state).state;
+
+    // If it's not a 'word-style' token, ignore the token.
+    if (!/^[\w$_-]*$/.test(token.string)) {
+      token = tprop = {
+        start: cur.ch,
+        end: cur.ch,
+        string: '',
+        state: token.state,
+        type: token.string === '.' ? 'property' : null
+      };
+    }
+    // If it is a property, find out what it is a property of.
+    while (tprop.type === 'property') {
+      tprop = getToken(editor, Pos(cur.line, tprop.start));
+      if (tprop.string !== '.') return;
+      tprop = getToken(editor, Pos(cur.line, tprop.start));
+      if (tprop.string === ')') {
+        var level = 1;
+        do {
+          tprop = getToken(editor, Pos(cur.line, tprop.start));
+          switch (tprop.string) {
+            case ')':
+              level++;
+              break;
+            case '(':
+              level--;
+              break;
+            default:
+              break;
+          }
+        } while (level > 0);
+        tprop = getToken(editor, Pos(cur.line, tprop.start));
+        if (tprop.type.indexOf('variable') === 0) tprop.type = 'function';
+        else return; // no clue
+      }
+      context.push(tprop);
+    }
+
+    return {
+      list: getCompletions(token, context, keywords, options),
+      from: Pos(cur.line, token.start),
+      to: Pos(cur.line, token.end)
+    };
+  }
+
+  function columnsHint (editor, options) {
+    return scriptHint(editor, [], /* javascriptKeywords */
+      function (e, cur) {
+        return e.getTokenAt(cur);
+      },
+      options);
+  }
+
+  CodeMirror.registerHelper('hint', 'custom-list', columnsHint);
+
+  function getCompletions (token, context, keywords, options) {
+    var found = [];
+    var start = token.string.toLowerCase();
+
+    function maybeAdd (str) {
+      var hit = _.isObject(str) ? str.text : str;
+      hit = hit.toLowerCase();
+      if (hit.indexOf(start) === 0 && start !== hit && !arrayContains(found, hit)) {
+        found.push(str);
+      }
+    }
+
+    function gatherCompletions (obj) {
+      for (var name in obj) {
+        maybeAdd(obj[name]);
+      }
+    }
+
+    gatherCompletions(options.list);
+    _.each(keywords, maybeAdd);
+
+    return found;
+  }
+};