[3019] | 1 | /*
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| 2 | Copyright (c) 2003-2009, 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 loadedPart = function( 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 | var appendSkinPath = function( fileNames )
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| 29 | {
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| 30 | for ( var n = 0 ; n < fileNames.length ; n++ )
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| 31 | {
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| 32 | fileNames[ n ] = CKEDITOR.getUrl( paths[ skinName ] + fileNames[ n ] );
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| 33 | }
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| 34 | };
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| 35 |
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| 36 | // Check if we need to preload images from it.
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| 37 | if ( !preloaded[ skinName ] )
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| 38 | {
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| 39 | var preload = skinDefinition.preload;
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| 40 | if ( preload && preload.length > 0 )
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| 41 | {
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| 42 | appendSkinPath( preload );
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| 43 | CKEDITOR.imageCacher.load( preload, function()
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| 44 | {
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| 45 | preloaded[ skinName ] = 1;
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| 46 | loadedPart( skinName, part, callback );
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| 47 | } );
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| 48 | return;
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| 49 | }
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| 50 |
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| 51 | // Mark it as preloaded.
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| 52 | preloaded[ skinName ] = 1;
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| 53 | }
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| 54 |
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| 55 | // Get the part definition.
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| 56 | part = skinDefinition[ part ];
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| 57 | var partIsLoaded = !part || !!part._isLoaded;
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| 58 |
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| 59 | // Call the callback immediately if already loaded.
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| 60 | if ( partIsLoaded )
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| 61 | callback && callback();
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| 62 | else
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| 63 | {
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| 64 | // Put the callback in a queue.
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| 65 | var pending = part._pending || ( part._pending = [] );
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| 66 | pending.push( callback );
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| 67 |
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| 68 | // We may have more than one skin part load request. Just the first
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| 69 | // one must do the loading job.
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| 70 | if ( pending.length > 1 )
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| 71 | return;
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| 72 |
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| 73 | // Check whether the "css" and "js" properties have been defined
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| 74 | // for that part.
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| 75 | var cssIsLoaded = !part.css || !part.css.length;
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| 76 | var jsIsLoaded = !part.js || !part.js.length;
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| 77 |
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| 78 | // This is the function that will trigger the callback calls on
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| 79 | // load.
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| 80 | var checkIsLoaded = function()
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| 81 | {
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| 82 | if ( cssIsLoaded && jsIsLoaded )
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| 83 | {
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| 84 | // Mark the part as loaded.
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| 85 | part._isLoaded = 1;
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| 86 |
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| 87 | // Call all pending callbacks.
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| 88 | for ( var i = 0 ; i < pending.length ; i++ )
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| 89 | {
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| 90 | if ( pending[ i ] )
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| 91 | pending[ i ]();
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| 92 | }
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| 93 | }
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| 94 | };
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| 95 |
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| 96 | // Load the "css" pieces.
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| 97 | if ( !cssIsLoaded )
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| 98 | {
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| 99 | appendSkinPath( part.css );
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| 100 |
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| 101 | for ( var c = 0 ; c < part.css.length ; c++ )
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| 102 | CKEDITOR.document.appendStyleSheet( part.css[ c ] );
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| 103 |
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| 104 | cssIsLoaded = 1;
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| 105 | }
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| 106 |
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| 107 | // Load the "js" pieces.
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| 108 | if ( !jsIsLoaded )
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| 109 | {
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| 110 | appendSkinPath( part.js );
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| 111 | CKEDITOR.scriptLoader.load( part.js, function()
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| 112 | {
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| 113 | jsIsLoaded = 1;
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| 114 | checkIsLoaded();
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| 115 | });
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| 116 | }
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| 117 |
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| 118 | // We may have nothing to load, so check it immediately.
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| 119 | checkIsLoaded();
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| 120 | }
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| 121 | };
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| 122 |
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| 123 | return /** @lends CKEDITOR.skins */ {
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| 124 |
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| 125 | /**
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| 126 | * Registers a skin definition.
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| 127 | * @param {String} skinName The skin name.
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| 128 | * @param {Object} skinDefinition The skin definition.
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| 129 | * @example
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| 130 | */
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| 131 | add : function( skinName, skinDefinition )
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| 132 | {
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| 133 | loaded[ skinName ] = skinDefinition;
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| 134 |
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| 135 | skinDefinition.skinPath = paths[ skinName ]
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| 136 | || ( paths[ skinName ] =
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| 137 | CKEDITOR.getUrl(
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| 138 | '_source/' + // @Packager.RemoveLine
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| 139 | 'skins/' + skinName + '/' ) );
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| 140 | },
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| 141 |
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| 142 | /**
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| 143 | * Loads a skin part. Skins are defined in parts, which are basically
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| 144 | * separated CSS files. This function is mainly used by the core code and
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| 145 | * should not have much use out of it.
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| 146 | * @param {String} skinName The name of the skin to be loaded.
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| 147 | * @param {String} skinPart The skin part to be loaded. Common skin parts
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| 148 | * are "editor" and "dialog".
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| 149 | * @param {Function} [callback] A function to be called once the skin
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| 150 | * part files are loaded.
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| 151 | * @example
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| 152 | */
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| 153 | load : function( editor, skinPart, callback )
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| 154 | {
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| 155 | var skinName = editor.skinName,
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| 156 | skinPath = editor.skinPath;
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| 157 |
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| 158 | if ( loaded[ skinName ] )
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| 159 | {
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| 160 | loadedPart( skinName, skinPart, callback );
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| 161 |
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| 162 | // Get the skin definition.
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| 163 | var skinDefinition = loaded[ skinName ];
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| 164 |
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| 165 | // Trigger init function if any.
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| 166 | if ( skinDefinition.init )
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| 167 | skinDefinition.init( editor );
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| 168 | }
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| 169 | else
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| 170 | {
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| 171 | paths[ skinName ] = skinPath;
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| 172 | CKEDITOR.scriptLoader.load( skinPath + 'skin.js', function()
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| 173 | {
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| 174 | loadedPart( skinName, skinPart, callback );
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| 175 |
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| 176 | // Get the skin definition.
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| 177 | var skinDefinition = loaded[ skinName ];
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| 178 |
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| 179 | // Trigger init function if any.
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| 180 | if ( skinDefinition.init )
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| 181 | skinDefinition.init( editor );
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| 182 | });
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| 183 | }
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| 184 | }
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| 185 | };
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| 186 | })();
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