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Diffstat (limited to 'Back/Blocks/syntax/src/shAutoloader.js')
-rw-r--r--Back/Blocks/syntax/src/shAutoloader.js130
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1/**
2 * SyntaxHighlighter
3 * http://alexgorbatchev.com/SyntaxHighlighter
4 *
5 * SyntaxHighlighter is donationware. If you are using it, please donate.
6 * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
7 *
8 * @version
9 * 3.0.83 (July 02 2010)
10 *
11 * @copyright
12 * Copyright (C) 2004-2010 Alex Gorbatchev.
13 *
14 * @license
15 * Dual licensed under the MIT and GPL licenses.
16 */
17(function() {
18
19var sh = SyntaxHighlighter;
20
21/**
22 * Provides functionality to dynamically load only the brushes that a needed to render the current page.
23 *
24 * There are two syntaxes that autoload understands. For example:
25 *
26 * SyntaxHighlighter.autoloader(
27 * [ 'applescript', 'Scripts/shBrushAppleScript.js' ],
28 * [ 'actionscript3', 'as3', 'Scripts/shBrushAS3.js' ]
29 * );
30 *
31 * or a more easily comprehendable one:
32 *
33 * SyntaxHighlighter.autoloader(
34 * 'applescript Scripts/shBrushAppleScript.js',
35 * 'actionscript3 as3 Scripts/shBrushAS3.js'
36 * );
37 */
38sh.autoloader = function()
39{
40 var list = arguments,
41 elements = sh.findElements(),
42 brushes = {},
43 scripts = {},
44 all = SyntaxHighlighter.all,
45 allCalled = false,
46 allParams = null,
47 i
48 ;
49
50 SyntaxHighlighter.all = function(params)
51 {
52 allParams = params;
53 allCalled = true;
54 };
55
56 function addBrush(aliases, url)
57 {
58 for (var i = 0; i < aliases.length; i++)
59 brushes[aliases[i]] = url;
60 };
61
62 function getAliases(item)
63 {
64 return item.pop
65 ? item
66 : item.split(/\s+/)
67 ;
68 }
69
70 // create table of aliases and script urls
71 for (i = 0; i < list.length; i++)
72 {
73 var aliases = getAliases(list[i]),
74 url = aliases.pop()
75 ;
76
77 addBrush(aliases, url);
78 }
79
80 // dynamically add <script /> tags to the document body
81 for (i = 0; i < elements.length; i++)
82 {
83 var url = brushes[elements[i].params.brush];
84
85 if (!url)
86 continue;
87
88 scripts[url] = false;
89 loadScript(url);
90 }
91
92 function loadScript(url)
93 {
94 var script = document.createElement('script'),
95 done = false
96 ;
97
98 script.src = url;
99 script.type = 'text/javascript';
100 script.language = 'javascript';
101 script.onload = script.onreadystatechange = function()
102 {
103 if (!done && (!this.readyState || this.readyState == 'loaded' || this.readyState == 'complete'))
104 {
105 done = true;
106 scripts[url] = true;
107 checkAll();
108
109 // Handle memory leak in IE
110 script.onload = script.onreadystatechange = null;
111 script.parentNode.removeChild(script);
112 }
113 };
114
115 // sync way of adding script tags to the page
116 document.body.appendChild(script);
117 };
118
119 function checkAll()
120 {
121 for(var url in scripts)
122 if (scripts[url] == false)
123 return;
124
125 if (allCalled)
126 SyntaxHighlighter.highlight(allParams);
127 };
128};
129
130})();
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