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1 /* | |
2 * Copyright (C) 2011 Apple Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions | |
6 * are met: | |
7 * 1. Redistributions of source code must retain the above copyright | |
8 * notice, this list of conditions and the following disclaimer. | |
9 * 2. Redistributions in binary form must reproduce the above copyright | |
10 * notice, this list of conditions and the following disclaimer in the | |
11 * documentation and/or other materials provided with the distribution. | |
12 * | |
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' | |
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | |
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
23 * THE POSSIBILITY OF SUCH DAMAGE. | |
24 */ | |
25 | |
26 function createDescriptionList(items) { | |
27 var list = document.createElement('dl'); | |
28 items.forEach(function(pair) { | |
29 var dt = document.createElement('dt'); | |
30 dt.appendChild(pair[0]); | |
31 var dd = document.createElement('dd'); | |
32 dd.appendChild(pair[1]); | |
33 list.appendChild(dt); | |
34 list.appendChild(dd); | |
35 }); | |
36 return list; | |
37 } | |
38 | |
39 function fetchResource(url, method, queryParameters, callback, errorCallback) { | |
40 var xhr = new XMLHttpRequest(); | |
41 xhr.onreadystatechange = function() { | |
42 if (this.readyState !== 4) | |
43 return; | |
44 // Allow a status of 0 for easier testing with local files. | |
45 if (!this.status || this.status === 200) | |
46 callback(this); | |
47 else if (errorCallback) | |
48 errorCallback(this); | |
49 }; | |
50 | |
51 if (method === 'GET' && queryParameters) | |
52 url = addQueryParametersToURL(url, queryParameters); | |
53 | |
54 xhr.open(method, url); | |
55 | |
56 if (method === 'GET') { | |
57 xhr.send(); | |
58 return; | |
59 } | |
60 | |
61 var data = urlEncodeQueryParameters(queryParameters); | |
62 xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); | |
63 xhr.send(data); | |
64 } | |
65 | |
66 function getResource(url, callback, errorCallback) { | |
67 fetchResource(url, 'GET', null, callback, errorCallback); | |
68 } | |
69 | |
70 function urlEncodeQueryParameters(queryParameters) { | |
71 var encodedParameters = Object.keys(queryParameters).map(function(key) { | |
72 return key + '=' + encodeURIComponent(queryParameters[key]); | |
73 }); | |
74 return encodedParameters.join('&'); | |
75 } | |
76 | |
77 function addQueryParametersToURL(url, queryParameters) { | |
78 if (url.indexOf('?') < 0) | |
79 url += '?'; | |
80 else | |
81 url += '&'; | |
82 | |
83 return url + urlEncodeQueryParameters(queryParameters); | |
84 } | |
85 | |
86 function longestCommonPathPrefix(paths) { | |
87 const separator = '/'; | |
88 | |
89 var splitPaths = paths.map(function(path) { return path.split(separator) }); | |
90 var firstSplitPath = splitPaths.shift(); | |
91 | |
92 var result = []; | |
93 for (var i = 0; i < firstSplitPath.length; ++i) { | |
94 if (!splitPaths.every(function(splitPath) { return splitPath[i] === firs
tSplitPath[i] })) | |
95 break; | |
96 result.push(firstSplitPath[i]); | |
97 } | |
98 | |
99 if (!result.length) | |
100 return null; | |
101 return result.join(separator); | |
102 } | |
103 | |
104 function removePathExtension(string) { | |
105 var dotIndex = string.lastIndexOf('.'); | |
106 if (dotIndex < 0) | |
107 return string; | |
108 return string.substring(0, dotIndex); | |
109 } | |
110 | |
111 function sorted(array, sortFunction) { | |
112 var newArray = array.slice(); | |
113 newArray.sort(sortFunction); | |
114 return newArray; | |
115 } | |
116 | |
117 Array.prototype.contains = function(value) { | |
118 return this.indexOf(value) >= 0; | |
119 } | |
120 | |
121 Array.prototype.findFirst = function(predicate) { | |
122 for (var i = 0; i < this.length; ++i) { | |
123 if (predicate(this[i])) | |
124 return this[i]; | |
125 } | |
126 return null; | |
127 } | |
128 | |
129 Array.prototype.findLast = function(predicate) { | |
130 for (var i = this.length - 1; i >= 0; --i) { | |
131 if (predicate(this[i])) | |
132 return this[i]; | |
133 } | |
134 return null; | |
135 } | |
136 | |
137 Array.prototype.last = function() { | |
138 if (!this.length) | |
139 return undefined; | |
140 return this[this.length - 1]; | |
141 } | |
142 | |
143 Element.prototype.hasStyleClass = function(klass) { | |
144 var regex = new RegExp('\\b' + klass + '\\b'); | |
145 return regex.test(this.className); | |
146 } | |
147 | |
148 Element.prototype.addStyleClass = function(klass) { | |
149 if (this.hasStyleClass(klass)) | |
150 return; | |
151 this.className += ' ' + klass; | |
152 } | |
153 | |
154 Element.prototype.removeStyleClass = function(klass) { | |
155 var regex = new RegExp('\\b' + klass + '\\b', 'g'); | |
156 this.className = this.className.replace(regex, ''); | |
157 } | |
158 | |
159 Element.prototype.toggleStyleClass = function(klass) { | |
160 if (this.hasStyleClass(klass)) | |
161 this.removeStyleClass(klass); | |
162 else | |
163 this.addStyleClass(klass); | |
164 } | |
165 | |
166 Node.prototype.appendChildren = function(children) { | |
167 for (var i = 0; i < children.length; ++i) | |
168 this.appendChild(children[i]); | |
169 } | |
170 | |
171 Node.prototype.removeAllChildren = function() { | |
172 while (this.firstChild) | |
173 this.removeChild(this.firstChild); | |
174 } | |
175 | |
176 String.prototype.contains = function(substring) { | |
177 return this.indexOf(substring) >= 0; | |
178 } | |
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