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