1 | /*
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2 | Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
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3 | For licensing, see LICENSE.html or http://ckeditor.com/license
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4 | */
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5 |
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6 | /**
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7 | * @fileOverview Defines the {@link CKEDITOR.loader} objects, which is used to
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8 | * load core scripts and their dependencies from _source.
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9 | */
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10 |
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11 | if ( typeof CKEDITOR == 'undefined' )
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12 | CKEDITOR = {};
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13 |
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14 | if ( !CKEDITOR.loader )
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15 | {
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16 | /**
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17 | * Load core scripts and their dependencies from _source.
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18 | * @namespace
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19 | * @example
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20 | */
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21 | CKEDITOR.loader = (function()
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22 | {
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23 | // Table of script names and their dependencies.
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24 | var scripts =
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25 | {
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26 | 'core/_bootstrap' : [ 'core/config', 'core/ckeditor', 'core/plugins', 'core/scriptloader', 'core/tools', /* The following are entries that we want to force loading at the end to avoid dependence recursion */ 'core/dom/comment', 'core/dom/elementpath', 'core/dom/text', 'core/dom/range' ],
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27 | 'core/ajax' : [ 'core/xml' ],
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28 | 'core/ckeditor' : [ 'core/ckeditor_basic', 'core/dom', 'core/dtd', 'core/dom/document', 'core/dom/element', 'core/editor', 'core/event', 'core/htmlparser', 'core/htmlparser/element', 'core/htmlparser/fragment', 'core/htmlparser/filter', 'core/htmlparser/basicwriter', 'core/tools' ],
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29 | 'core/ckeditor_base' : [],
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30 | 'core/ckeditor_basic' : [ 'core/editor_basic', 'core/env', 'core/event' ],
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31 | 'core/command' : [],
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32 | 'core/config' : [ 'core/ckeditor_base' ],
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33 | 'core/dom' : [],
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34 | 'core/dom/comment' : [ 'core/dom/node' ],
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35 | 'core/dom/document' : [ 'core/dom', 'core/dom/domobject', 'core/dom/window' ],
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36 | 'core/dom/documentfragment' : [ 'core/dom/element' ],
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37 | 'core/dom/element' : [ 'core/dom', 'core/dom/document', 'core/dom/domobject', 'core/dom/node', 'core/dom/nodelist', 'core/tools' ],
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38 | 'core/dom/elementpath' : [ 'core/dom/element' ],
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39 | 'core/dom/event' : [],
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40 | 'core/dom/node' : [ 'core/dom/domobject', 'core/tools' ],
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41 | 'core/dom/nodelist' : [ 'core/dom/node' ],
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42 | 'core/dom/domobject' : [ 'core/dom/event' ],
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43 | 'core/dom/range' : [ 'core/dom/document', 'core/dom/documentfragment', 'core/dom/element', 'core/dom/walker' ],
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44 | 'core/dom/text' : [ 'core/dom/node', 'core/dom/domobject' ],
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45 | 'core/dom/walker' : [ 'core/dom/node' ],
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46 | 'core/dom/window' : [ 'core/dom/domobject' ],
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47 | 'core/dtd' : [ 'core/tools' ],
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48 | 'core/editor' : [ 'core/command', 'core/config', 'core/editor_basic', 'core/focusmanager', 'core/lang', 'core/plugins', 'core/skins', 'core/themes', 'core/tools', 'core/ui' ],
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49 | 'core/editor_basic' : [ 'core/event' ],
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50 | 'core/env' : [],
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51 | 'core/event' : [],
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52 | 'core/focusmanager' : [],
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53 | 'core/htmlparser' : [],
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54 | 'core/htmlparser/comment' : [ 'core/htmlparser' ],
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55 | 'core/htmlparser/element' : [ 'core/htmlparser', 'core/htmlparser/fragment' ],
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56 | 'core/htmlparser/fragment' : [ 'core/htmlparser', 'core/htmlparser/comment', 'core/htmlparser/text', 'core/htmlparser/cdata' ],
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57 | 'core/htmlparser/text' : [ 'core/htmlparser' ],
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58 | 'core/htmlparser/cdata' : [ 'core/htmlparser' ],
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59 | 'core/htmlparser/filter' : [ 'core/htmlparser' ],
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60 | 'core/htmlparser/basicwriter': [ 'core/htmlparser' ],
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61 | 'core/imagecacher' : [ 'core/dom/element' ],
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62 | 'core/lang' : [],
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63 | 'core/plugins' : [ 'core/resourcemanager' ],
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64 | 'core/resourcemanager' : [ 'core/scriptloader', 'core/tools' ],
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65 | 'core/scriptloader' : [ 'core/dom/element', 'core/env' ],
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66 | 'core/skins' : [ 'core/imagecacher', 'core/scriptloader' ],
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67 | 'core/themes' : [ 'core/resourcemanager' ],
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68 | 'core/tools' : [ 'core/env' ],
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69 | 'core/ui' : [],
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70 | 'core/xml' : [ 'core/env' ]
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71 | };
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72 |
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73 | var basePath = (function()
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74 | {
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75 | // This is a copy of CKEDITOR.basePath, but requires the script having
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76 | // "_source/core/loader.js".
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77 | if ( CKEDITOR && CKEDITOR.basePath )
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78 | return CKEDITOR.basePath;
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79 |
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80 | // Find out the editor directory path, based on its <script> tag.
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81 | var path = '';
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82 | var scripts = document.getElementsByTagName( 'script' );
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83 |
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84 | for ( var i = 0 ; i < scripts.length ; i++ )
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85 | {
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86 | var match = scripts[i].src.match( /(^|.*[\\\/])core\/loader.js(?:\?.*)?$/i );
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87 |
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88 | if ( match )
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89 | {
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90 | path = match[1];
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91 | break;
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92 | }
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93 | }
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94 |
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95 | // In IE (only) the script.src string is the raw valued entered in the
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96 | // HTML. Other browsers return the full resolved URL instead.
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97 | if ( path.indexOf('://') == -1 )
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98 | {
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99 | // Absolute path.
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100 | if ( path.indexOf( '/' ) === 0 )
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101 | path = location.href.match( /^.*?:\/\/[^\/]*/ )[0] + path;
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102 | // Relative path.
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103 | else
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104 | path = location.href.match( /^[^\?]*\// )[0] + path;
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105 | }
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106 |
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107 | return path;
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108 | })();
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109 |
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110 | var timestamp = 'A39E';
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111 |
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112 | var getUrl = function( resource )
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113 | {
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114 | if ( CKEDITOR && CKEDITOR.getUrl )
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115 | return CKEDITOR.getUrl( resource );
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116 |
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117 | return basePath + resource +
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118 | ( resource.indexOf( '?' ) >= 0 ? '&' : '?' ) +
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119 | 't=' + timestamp;
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120 | };
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121 |
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122 | var pendingLoad = [];
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123 |
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124 | /** @lends CKEDITOR.loader */
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125 | return {
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126 | /**
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127 | * The list of loaded scripts in their loading order.
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128 | * @type Array
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129 | * @example
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130 | * // Alert the loaded script names.
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131 | * alert( <b>CKEDITOR.loader.loadedScripts</b> );
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132 | */
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133 | loadedScripts : [],
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134 |
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135 | loadPending : function()
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136 | {
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137 | var scriptName = pendingLoad.shift();
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138 |
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139 | if ( !scriptName )
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140 | return;
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141 |
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142 | var scriptSrc = getUrl( '_source/' + scriptName + '.js' );
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143 |
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144 | var script = document.createElement( 'script' );
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145 | script.type = 'text/javascript';
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146 | script.src = scriptSrc;
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147 |
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148 | function onScriptLoaded()
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149 | {
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150 | // Append this script to the list of loaded scripts.
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151 | CKEDITOR.loader.loadedScripts.push( scriptName );
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152 |
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153 | // Load the next.
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154 | CKEDITOR.loader.loadPending();
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155 | }
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156 |
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157 | // We must guarantee the execution order of the scripts, so we
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158 | // need to load them one by one. (#4145)
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159 | // The following if/else block has been taken from the scriptloader core code.
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160 | if ( typeof(script.onreadystatechange) !== "undefined" )
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161 | {
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162 | /** @ignore */
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163 | script.onreadystatechange = function()
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164 | {
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165 | if ( script.readyState == 'loaded' || script.readyState == 'complete' )
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166 | {
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167 | script.onreadystatechange = null;
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168 | onScriptLoaded();
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169 | }
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170 | };
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171 | }
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172 | else
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173 | {
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174 | /** @ignore */
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175 | script.onload = function()
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176 | {
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177 | // Some browsers, such as Safari, may call the onLoad function
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178 | // immediately. Which will break the loading sequence. (#3661)
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179 | setTimeout( function() { onScriptLoaded( scriptName ); }, 0 );
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180 | };
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181 | }
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182 |
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183 | document.body.appendChild( script );
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184 | },
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185 |
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186 | /**
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187 | * Loads a specific script, including its dependencies. This is not a
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188 | * synchronous loading, which means that the code to be loaded will
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189 | * not necessarily be available after this call.
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190 | * @example
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191 | * CKEDITOR.loader.load( 'core/dom/element' );
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192 | */
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193 | load : function( scriptName, defer )
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194 | {
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195 | // Check if the script has already been loaded.
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196 | if ( scriptName in this.loadedScripts )
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197 | if ( ! ( scriptName in Object.prototype ) )
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198 | return;
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199 |
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200 | // Get the script dependencies list.
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201 | var dependencies = scripts[ scriptName ];
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202 | if ( !dependencies )
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203 | throw 'The script name"' + scriptName + '" is not defined.';
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204 |
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205 | // Mark the script as loaded, even before really loading it, to
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206 | // avoid cross references recursion.
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207 | this.loadedScripts[ scriptName ] = true;
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208 |
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209 | // Load all dependencies first.
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210 | for ( var i = 0 ; i < dependencies.length ; i++ )
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211 | this.load( dependencies[ i ], true );
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212 |
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213 | var scriptSrc = getUrl( '_source/' + scriptName + '.js' );
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214 |
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215 | // Append the <script> element to the DOM.
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216 | // If the page is fully loaded, we can't use document.write
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217 | // but if the script is run while the body is loading then it's safe to use it
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218 | // Unfortunately, Firefox <3.6 doesn't support document.readyState, so it won't get this improvement
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219 | if ( document.body && (!document.readyState || document.readyState == 'complete') )
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220 | {
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221 | pendingLoad.push( scriptName );
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222 |
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223 | if ( !defer )
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224 | this.loadPending();
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225 | }
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226 | else
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227 | {
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228 | // Append this script to the list of loaded scripts.
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229 | this.loadedScripts.push( scriptName );
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230 |
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231 | document.write( '<script src="' + scriptSrc + '" type="text/javascript"><\/script>' );
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232 | }
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233 | }
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234 | };
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235 | })();
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236 | }
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237 |
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238 | // Check if any script has been defined for autoload.
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239 | if ( CKEDITOR._autoLoad )
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240 | {
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241 | CKEDITOR.loader.load( CKEDITOR._autoLoad );
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242 | delete CKEDITOR._autoLoad;
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243 | }
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