2 var Pos = CodeMirror.Pos;
4 function forEach(arr, f) {
5 for (var i = 0, e = arr.length; i < e; ++i) f(arr[i]);
8 function arrayContains(arr, item) {
9 if (!Array.prototype.indexOf) {
12 if (arr[i] === item) {
18 return arr.indexOf(item) != -1;
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;
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};
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 == ')') {
39 tprop = getToken(editor, Pos(cur.line, tprop.start));
40 switch (tprop.string) {
41 case ')': level++; break;
42 case '(': level--; break;
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
51 if (!context) var context = [];
54 return {list: getCompletions(token, context, keywords, options),
55 from: Pos(cur.line, token.start),
56 to: Pos(cur.line, token.end)};
59 function javascriptHint(editor, options) {
60 return scriptHint(editor, javascriptKeywords,
61 function (e, cur) {return e.getTokenAt(cur);},
64 CodeMirror.javascriptHint = javascriptHint; // deprecated
65 CodeMirror.registerHelper("hint", "javascript", javascriptHint);
67 function getCoffeeScriptToken(editor, cur) {
68 // This getToken, it is for coffeescript, imitates the behavior of
69 // getTokenAt method in javascript.js, that is, returning "property"
70 // type and treat "." as indepenent token.
71 var token = editor.getTokenAt(cur);
72 if (cur.ch == token.start + 1 && token.string.charAt(0) == '.') {
73 token.end = token.start;
75 token.type = "property";
77 else if (/^\.[\w$_]*$/.test(token.string)) {
78 token.type = "property";
80 token.string = token.string.replace(/\./, '');
85 function coffeescriptHint(editor, options) {
86 return scriptHint(editor, coffeescriptKeywords, getCoffeeScriptToken, options);
88 CodeMirror.coffeescriptHint = coffeescriptHint; // deprecated
89 CodeMirror.registerHelper("hint", "coffeescript", coffeescriptHint);
91 var stringProps = ("charAt charCodeAt indexOf lastIndexOf substring substr slice trim trimLeft trimRight " +
92 "toUpperCase toLowerCase split concat match replace search").split(" ");
93 var arrayProps = ("length concat join splice push pop shift unshift slice reverse sort indexOf " +
94 "lastIndexOf every some filter forEach map reduce reduceRight ").split(" ");
95 var funcProps = "prototype apply call bind".split(" ");
96 var javascriptKeywords = ("break case catch continue debugger default delete do else false finally for function " +
97 "if in instanceof new null return switch throw true try typeof var void while with").split(" ");
98 var coffeescriptKeywords = ("and break catch class continue delete do else extends false finally for " +
99 "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(" ");
101 function getCompletions(token, context, keywords, options) {
102 var found = [], start = token.string;
103 function maybeAdd(str) {
104 if (str.indexOf(start) == 0 && !arrayContains(found, str)) found.push(str);
106 function gatherCompletions(obj) {
107 if (typeof obj == "string") forEach(stringProps, maybeAdd);
108 else if (obj instanceof Array) forEach(arrayProps, maybeAdd);
109 else if (obj instanceof Function) forEach(funcProps, maybeAdd);
110 for (var name in obj) maybeAdd(name);
114 // If this is a property, see if it belongs to some object we can
115 // find in the current environment.
116 var obj = context.pop(), base;
117 if (obj.type.indexOf("variable") === 0) {
118 if (options && options.additionalContext)
119 base = options.additionalContext[obj.string];
120 base = base || window[obj.string];
121 } else if (obj.type == "string") {
123 } else if (obj.type == "atom") {
125 } else if (obj.type == "function") {
126 if (window.jQuery != null && (obj.string == '$' || obj.string == 'jQuery') &&
127 (typeof window.jQuery == 'function'))
128 base = window.jQuery();
129 else if (window._ != null && (obj.string == '_') && (typeof window._ == 'function'))
132 while (base != null && context.length)
133 base = base[context.pop().string];
134 if (base != null) gatherCompletions(base);
137 // If not, just look in the window object and any local scope
138 // (reading into JS mode internals to get at the local and global variables)
139 for (var v = token.state.localVars; v; v = v.next) maybeAdd(v.name);
140 for (var v = token.state.globalVars; v; v = v.next) maybeAdd(v.name);
141 gatherCompletions(window);
142 forEach(keywords, maybeAdd);