wcfsetup/install/files/js/3rdParty/codemirror/addon/hint/javascript-hint.js

   1 (function () {
   2   var Pos = CodeMirror.Pos;
   3
   4   function forEach(arr, f) {
   5     for (var i = 0, e = arr.length; i < e; ++i) f(arr[i]);
   6   }
   7
   8   function arrayContains(arr, item) {
   9     if (!Array.prototype.indexOf) {
  10       var i = arr.length;
  11       while (i--) {
  12         if (arr[i] === item) {
  13           return true;
  14         }
  15       }
  16       return false;
  17     }
  18     return arr.indexOf(item) != -1;
  19   }
  20
  21   function scriptHint(editor, keywords, getToken, options) {
  22     // Find the token at the cursor
  23     var cur = editor.getCursor(), token = getToken(editor, cur), tprop = token;
  24     token.state = CodeMirror.innerMode(editor.getMode(), token.state).state;
  25
  26     // If it's not a 'word-style' token, ignore the token.
  27     if (!/^[\w$_]*$/.test(token.string)) {
  28       token = tprop = {start: cur.ch, end: cur.ch, string: "", state: token.state,
  29                        type: token.string == "." ? "property" : null};
  30     }
  31     // If it is a property, find out what it is a property of.
  32     while (tprop.type == "property") {
  33       tprop = getToken(editor, Pos(cur.line, tprop.start));
  34       if (tprop.string != ".") return;
  35       tprop = getToken(editor, Pos(cur.line, tprop.start));
  36       if (tprop.string == ')') {
  37         var level = 1;
  38         do {
  39           tprop = getToken(editor, Pos(cur.line, tprop.start));
  40           switch (tprop.string) {
  41           case ')': level++; break;
  42           case '(': level--; break;
  43           default: break;
  44           }
  45         } while (level > 0);
  46         tprop = getToken(editor, Pos(cur.line, tprop.start));
  47         if (tprop.type.indexOf("variable") === 0)
  48           tprop.type = "function";
  49         else return; // no clue
  50       }
  51       if (!context) var context = [];
  52       context.push(tprop);
  53     }
  54     return {list: getCompletions(token, context, keywords, options),
  55             from: Pos(cur.line, token.start),
  56             to: Pos(cur.line, token.end)};
  57   }
  58
  59   CodeMirror.javascriptHint = function(editor, options) {
  60     return scriptHint(editor, javascriptKeywords,
  61                       function (e, cur) {return e.getTokenAt(cur);},
  62                       options);
  63   };
  64
  65   function getCoffeeScriptToken(editor, cur) {
  66   // This getToken, it is for coffeescript, imitates the behavior of
  67   // getTokenAt method in javascript.js, that is, returning "property"
  68   // type and treat "." as indepenent token.
  69     var token = editor.getTokenAt(cur);
  70     if (cur.ch == token.start + 1 && token.string.charAt(0) == '.') {
  71       token.end = token.start;
  72       token.string = '.';
  73       token.type = "property";
  74     }
  75     else if (/^\.[\w$_]*$/.test(token.string)) {
  76       token.type = "property";
  77       token.start++;
  78       token.string = token.string.replace(/\./, '');
  79     }
  80     return token;
  81   }
  82
  83   CodeMirror.coffeescriptHint = function(editor, options) {
  84     return scriptHint(editor, coffeescriptKeywords, getCoffeeScriptToken, options);
  85   };
  86
  87   var stringProps = ("charAt charCodeAt indexOf lastIndexOf substring substr slice trim trimLeft trimRight " +
  88                      "toUpperCase toLowerCase split concat match replace search").split(" ");
  89   var arrayProps = ("length concat join splice push pop shift unshift slice reverse sort indexOf " +
  90                     "lastIndexOf every some filter forEach map reduce reduceRight ").split(" ");
  91   var funcProps = "prototype apply call bind".split(" ");
  92   var javascriptKeywords = ("break case catch continue debugger default delete do else false finally for function " +
  93                   "if in instanceof new null return switch throw true try typeof var void while with").split(" ");
  94   var coffeescriptKeywords = ("and break catch class continue delete do else extends false finally for " +
  95                   "if in instanceof isnt new no not null of off on or return switch then throw true try typeof until void while with yes").split(" ");
  96
  97   function getCompletions(token, context, keywords, options) {
  98     var found = [], start = token.string;
  99     function maybeAdd(str) {
 100       if (str.indexOf(start) == 0 && !arrayContains(found, str)) found.push(str);
 101     }
 102     function gatherCompletions(obj) {
 103       if (typeof obj == "string") forEach(stringProps, maybeAdd);
 104       else if (obj instanceof Array) forEach(arrayProps, maybeAdd);
 105       else if (obj instanceof Function) forEach(funcProps, maybeAdd);
 106       for (var name in obj) maybeAdd(name);
 107     }
 108
 109     if (context) {
 110       // If this is a property, see if it belongs to some object we can
 111       // find in the current environment.
 112       var obj = context.pop(), base;
 113       if (obj.type.indexOf("variable") === 0) {
 114         if (options && options.additionalContext)
 115           base = options.additionalContext[obj.string];
 116         base = base || window[obj.string];
 117       } else if (obj.type == "string") {
 118         base = "";
 119       } else if (obj.type == "atom") {
 120         base = 1;
 121       } else if (obj.type == "function") {
 122         if (window.jQuery != null && (obj.string == '$' || obj.string == 'jQuery') &&
 123             (typeof window.jQuery == 'function'))
 124           base = window.jQuery();
 125         else if (window._ != null && (obj.string == '_') && (typeof window._ == 'function'))
 126           base = window._();
 127       }
 128       while (base != null && context.length)
 129         base = base[context.pop().string];
 130       if (base != null) gatherCompletions(base);
 131     }
 132     else {
 133       // If not, just look in the window object and any local scope
 134       // (reading into JS mode internals to get at the local and global variables)
 135       for (var v = token.state.localVars; v; v = v.next) maybeAdd(v.name);
 136       for (var v = token.state.globalVars; v; v = v.next) maybeAdd(v.name);
 137       gatherCompletions(window);
 138       forEach(keywords, maybeAdd);
 139     }
 140     return found;
 141   }
 142 })();