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1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
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2 // Distributed under an MIT license: https://codemirror.net/5/LICENSE
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3
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4 (function(mod) {
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5 if (typeof exports == "object" && typeof module == "object") // CommonJS
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6 mod(require("../../lib/codemirror"));
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7 else if (typeof define == "function" && define.amd) // AMD
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8 define(["../../lib/codemirror"], mod);
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9 else // Plain browser env
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10 mod(CodeMirror);
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11 })(function(CodeMirror) {
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12 var Pos = CodeMirror.Pos;
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13
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14 function forEach(arr, f) {
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15 for (var i = 0, e = arr.length; i < e; ++i) f(arr[i]);
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16 }
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17
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18 function arrayContains(arr, item) {
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19 if (!Array.prototype.indexOf) {
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20 var i = arr.length;
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21 while (i--) {
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22 if (arr[i] === item) {
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23 return true;
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24 }
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25 }
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26 return false;
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27 }
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28 return arr.indexOf(item) != -1;
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29 }
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30
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31 function scriptHint(editor, keywords, getToken, options) {
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32 // Find the token at the cursor
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33 var cur = editor.getCursor(), token = getToken(editor, cur);
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34 if (/\b(?:string|comment)\b/.test(token.type)) return;
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35 var innerMode = CodeMirror.innerMode(editor.getMode(), token.state);
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36 if (innerMode.mode.helperType === "json") return;
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37 token.state = innerMode.state;
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38
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39 // If it's not a 'word-style' token, ignore the token.
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40 if (!/^[\w$_]*$/.test(token.string)) {
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41 token = {start: cur.ch, end: cur.ch, string: "", state: token.state,
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42 type: token.string == "." ? "property" : null};
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43 } else if (token.end > cur.ch) {
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44 token.end = cur.ch;
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45 token.string = token.string.slice(0, cur.ch - token.start);
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46 }
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47
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48 var tprop = token;
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49 // If it is a property, find out what it is a property of.
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50 while (tprop.type == "property") {
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51 tprop = getToken(editor, Pos(cur.line, tprop.start));
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52 if (tprop.string != ".") return;
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53 tprop = getToken(editor, Pos(cur.line, tprop.start));
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54 if (!context) var context = [];
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55 context.push(tprop);
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56 }
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57 return {list: getCompletions(token, context, keywords, options),
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58 from: Pos(cur.line, token.start),
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59 to: Pos(cur.line, token.end)};
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60 }
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61
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62 function javascriptHint(editor, options) {
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63 return scriptHint(editor, javascriptKeywords,
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64 function (e, cur) {return e.getTokenAt(cur);},
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65 options);
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66 };
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67 CodeMirror.registerHelper("hint", "javascript", javascriptHint);
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68
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69 function getCoffeeScriptToken(editor, cur) {
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70 // This getToken, it is for coffeescript, imitates the behavior of
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71 // getTokenAt method in javascript.js, that is, returning "property"
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72 // type and treat "." as independent token.
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73 var token = editor.getTokenAt(cur);
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74 if (cur.ch == token.start + 1 && token.string.charAt(0) == '.') {
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75 token.end = token.start;
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76 token.string = '.';
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77 token.type = "property";
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78 }
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79 else if (/^\.[\w$_]*$/.test(token.string)) {
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80 token.type = "property";
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81 token.start++;
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82 token.string = token.string.replace(/\./, '');
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83 }
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84 return token;
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85 }
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86
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87 function coffeescriptHint(editor, options) {
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88 return scriptHint(editor, coffeescriptKeywords, getCoffeeScriptToken, options);
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89 }
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90 CodeMirror.registerHelper("hint", "coffeescript", coffeescriptHint);
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91
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92 var stringProps = ("charAt charCodeAt indexOf lastIndexOf substring substr slice trim trimLeft trimRight " +
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93 "toUpperCase toLowerCase split concat match replace search").split(" ");
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94 var arrayProps = ("length concat join splice push pop shift unshift slice reverse sort indexOf " +
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95 "lastIndexOf every some filter forEach map reduce reduceRight ").split(" ");
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96 var funcProps = "prototype apply call bind".split(" ");
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97 var javascriptKeywords = ("break case catch class const continue debugger default delete do else export extends false finally for function " +
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98 "if in import instanceof new null return super switch this throw true try typeof var void while with yield").split(" ");
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99 var coffeescriptKeywords = ("and break catch class continue delete do else extends false finally for " +
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100 "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(" ");
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101
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102 function forAllProps(obj, callback) {
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103 if (!Object.getOwnPropertyNames || !Object.getPrototypeOf) {
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104 for (var name in obj) callback(name)
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105 } else {
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106 for (var o = obj; o; o = Object.getPrototypeOf(o))
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107 Object.getOwnPropertyNames(o).forEach(callback)
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108 }
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109 }
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110
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111 function getCompletions(token, context, keywords, options) {
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112 var found = [], start = token.string, global = options && options.globalScope || window;
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113 function maybeAdd(str) {
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114 if (str.lastIndexOf(start, 0) == 0 && !arrayContains(found, str)) found.push(str);
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115 }
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116 function gatherCompletions(obj) {
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117 if (typeof obj == "string") forEach(stringProps, maybeAdd);
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118 else if (obj instanceof Array) forEach(arrayProps, maybeAdd);
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119 else if (obj instanceof Function) forEach(funcProps, maybeAdd);
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120 forAllProps(obj, maybeAdd)
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121 }
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122
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123 if (context && context.length) {
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124 // If this is a property, see if it belongs to some object we can
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125 // find in the current environment.
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126 var obj = context.pop(), base;
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127 if (obj.type && obj.type.indexOf("variable") === 0) {
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128 if (options && options.additionalContext)
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129 base = options.additionalContext[obj.string];
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130 if (!options || options.useGlobalScope !== false)
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131 base = base || global[obj.string];
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132 } else if (obj.type == "string") {
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133 base = "";
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134 } else if (obj.type == "atom") {
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135 base = 1;
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136 } else if (obj.type == "function") {
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137 if (global.jQuery != null && (obj.string == '$' || obj.string == 'jQuery') &&
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138 (typeof global.jQuery == 'function'))
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139 base = global.jQuery();
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140 else if (global._ != null && (obj.string == '_') && (typeof global._ == 'function'))
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141 base = global._();
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142 }
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143 while (base != null && context.length)
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144 base = base[context.pop().string];
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145 if (base != null) gatherCompletions(base);
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146 } else {
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147 // If not, just look in the global object, any local scope, and optional additional-context
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148 // (reading into JS mode internals to get at the local and global variables)
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149 for (var v = token.state.localVars; v; v = v.next) maybeAdd(v.name);
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150 for (var c = token.state.context; c; c = c.prev)
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151 for (var v = c.vars; v; v = v.next) maybeAdd(v.name)
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152 for (var v = token.state.globalVars; v; v = v.next) maybeAdd(v.name);
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153 if (options && options.additionalContext != null)
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154 for (var key in options.additionalContext)
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155 maybeAdd(key);
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156 if (!options || options.useGlobalScope !== false)
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157 gatherCompletions(global);
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158 forEach(keywords, maybeAdd);
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159 }
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160 return found;
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161 }
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162 });
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