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.skins} object, which is used to
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8 | * manage skins loading.
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9 | */
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10 |
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11 | /**
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12 | * Manages skins loading.
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13 | * @namespace
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14 | * @example
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15 | */
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16 | CKEDITOR.skins = (function()
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17 | {
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18 | // Holds the list of loaded skins.
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19 | var loaded = {};
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20 | var preloaded = {};
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21 | var paths = {};
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22 |
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23 | var loadPart = function( editor, skinName, part, callback )
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24 | {
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25 | // Get the skin definition.
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26 | var skinDefinition = loaded[ skinName ];
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27 |
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28 | if ( !editor.skin )
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29 | {
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30 | editor.skin = skinDefinition;
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31 |
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32 | // Trigger init function if any.
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33 | if ( skinDefinition.init )
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34 | skinDefinition.init( editor );
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35 | }
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36 |
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37 | var appendSkinPath = function( fileNames )
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38 | {
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39 | for ( var n = 0 ; n < fileNames.length ; n++ )
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40 | {
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41 | fileNames[ n ] = CKEDITOR.getUrl( paths[ skinName ] + fileNames[ n ] );
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42 | }
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43 | };
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44 |
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45 | function fixCSSTextRelativePath( cssStyleText, baseUrl )
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46 | {
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47 | return cssStyleText.replace( /url\s*\(([\s'"]*)(.*?)([\s"']*)\)/g,
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48 | function( match, opener, path, closer )
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49 | {
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50 | if ( /^\/|^\w?:/.test( path ) )
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51 | return match;
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52 | else
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53 | return 'url(' + baseUrl + opener + path + closer + ')';
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54 | } );
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55 | }
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56 |
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57 | // Check if we need to preload images from it.
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58 | if ( !preloaded[ skinName ] )
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59 | {
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60 | var preload = skinDefinition.preload;
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61 | if ( preload && preload.length > 0 )
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62 | {
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63 | appendSkinPath( preload );
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64 | CKEDITOR.imageCacher.load( preload, function()
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65 | {
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66 | preloaded[ skinName ] = 1;
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67 | loadPart( editor, skinName, part, callback );
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68 | } );
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69 | return;
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70 | }
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71 |
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72 | // Mark it as preloaded.
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73 | preloaded[ skinName ] = 1;
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74 | }
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75 |
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76 | // Get the part definition.
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77 | part = skinDefinition[ part ];
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78 | var partIsLoaded = !part || !!part._isLoaded;
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79 |
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80 | // Call the callback immediately if already loaded.
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81 | if ( partIsLoaded )
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82 | callback && callback();
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83 | else
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84 | {
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85 | // Put the callback in a queue.
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86 | var pending = part._pending || ( part._pending = [] );
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87 | pending.push( callback );
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88 |
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89 | // We may have more than one skin part load request. Just the first
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90 | // one must do the loading job.
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91 | if ( pending.length > 1 )
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92 | return;
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93 |
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94 | // Check whether the "css" and "js" properties have been defined
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95 | // for that part.
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96 | var cssIsLoaded = !part.css || !part.css.length;
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97 | var jsIsLoaded = !part.js || !part.js.length;
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98 |
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99 | // This is the function that will trigger the callback calls on
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100 | // load.
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101 | var checkIsLoaded = function()
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102 | {
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103 | if ( cssIsLoaded && jsIsLoaded )
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104 | {
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105 | // Mark the part as loaded.
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106 | part._isLoaded = 1;
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107 |
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108 | // Call all pending callbacks.
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109 | for ( var i = 0 ; i < pending.length ; i++ )
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110 | {
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111 | if ( pending[ i ] )
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112 | pending[ i ]();
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113 | }
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114 | }
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115 | };
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116 |
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117 | // Load the "css" pieces.
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118 | if ( !cssIsLoaded )
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119 | {
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120 | var cssPart = part.css;
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121 |
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122 | if ( CKEDITOR.tools.isArray( cssPart ) )
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123 | {
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124 | appendSkinPath( cssPart );
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125 | for ( var c = 0 ; c < cssPart.length ; c++ )
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126 | CKEDITOR.document.appendStyleSheet( cssPart[ c ] );
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127 | }
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128 | else
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129 | {
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130 | cssPart = fixCSSTextRelativePath(
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131 | cssPart, CKEDITOR.getUrl( paths[ skinName ] ) );
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132 | // Processing Inline CSS part.
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133 | CKEDITOR.document.appendStyleText( cssPart );
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134 | }
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135 |
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136 | part.css = cssPart;
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137 |
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138 | cssIsLoaded = 1;
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139 | }
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140 |
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141 | // Load the "js" pieces.
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142 | if ( !jsIsLoaded )
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143 | {
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144 | appendSkinPath( part.js );
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145 | CKEDITOR.scriptLoader.load( part.js, function()
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146 | {
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147 | jsIsLoaded = 1;
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148 | checkIsLoaded();
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149 | });
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150 | }
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151 |
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152 | // We may have nothing to load, so check it immediately.
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153 | checkIsLoaded();
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154 | }
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155 | };
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156 |
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157 | return /** @lends CKEDITOR.skins */ {
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158 |
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159 | /**
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160 | * Registers a skin definition.
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161 | * @param {String} skinName The skin name.
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162 | * @param {Object} skinDefinition The skin definition.
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163 | * @example
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164 | */
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165 | add : function( skinName, skinDefinition )
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166 | {
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167 | loaded[ skinName ] = skinDefinition;
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168 |
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169 | skinDefinition.skinPath = paths[ skinName ]
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170 | || ( paths[ skinName ] =
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171 | CKEDITOR.getUrl(
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172 | '_source/' + // @Packager.RemoveLine
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173 | 'skins/' + skinName + '/' ) );
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174 | },
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175 |
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176 | /**
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177 | * Loads a skin part. Skins are defined in parts, which are basically
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178 | * separated CSS files. This function is mainly used by the core code and
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179 | * should not have much use out of it.
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180 | * @param {String} skinName The name of the skin to be loaded.
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181 | * @param {String} skinPart The skin part to be loaded. Common skin parts
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182 | * are "editor" and "dialog".
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183 | * @param {Function} [callback] A function to be called once the skin
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184 | * part files are loaded.
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185 | * @example
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186 | */
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187 | load : function( editor, skinPart, callback )
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188 | {
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189 | var skinName = editor.skinName,
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190 | skinPath = editor.skinPath;
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191 |
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192 | if ( loaded[ skinName ] )
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193 | loadPart( editor, skinName, skinPart, callback );
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194 | else
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195 | {
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196 | paths[ skinName ] = skinPath;
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197 | CKEDITOR.scriptLoader.load( CKEDITOR.getUrl( skinPath + 'skin.js' ), function()
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198 | {
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199 | loadPart( editor, skinName, skinPart, callback );
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200 | });
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201 | }
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202 | }
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203 | };
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204 | })();
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