Datenstand V1.0

ckeditor/_source/core/skins.js

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+/*
+Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
+For licensing, see LICENSE.html or http://ckeditor.com/license
+*/
+
+/**
+ * @fileOverview Defines the {@link CKEDITOR.skins} object, which is used to
+ *		manage skins loading.
+ */
+
+/**
+ * Manages skins loading.
+ * @namespace
+ * @example
+ */
+CKEDITOR.skins = (function()
+{
+	// Holds the list of loaded skins.
+	var loaded = {};
+	var preloaded = {};
+	var paths = {};
+
+	var loadPart = function( editor, skinName, part, callback )
+	{
+		// Get the skin definition.
+		var skinDefinition = loaded[ skinName ];
+
+		if ( !editor.skin )
+		{
+			editor.skin = skinDefinition;
+
+			// Trigger init function if any.
+			if ( skinDefinition.init )
+				skinDefinition.init( editor );
+		}
+
+		var appendSkinPath = function( fileNames )
+		{
+			for ( var n = 0 ; n < fileNames.length ; n++ )
+			{
+				fileNames[ n ] = CKEDITOR.getUrl( paths[ skinName ] + fileNames[ n ] );
+			}
+		};
+
+		function fixCSSTextRelativePath( cssStyleText, baseUrl )
+		{
+			return cssStyleText.replace( /url\s*\(([\s'"]*)(.*?)([\s"']*)\)/g,
+					function( match, opener, path, closer )
+					{
+						if ( /^\/|^\w?:/.test( path ) )
+							return match;
+						else
+							return 'url(' + baseUrl + opener +  path + closer + ')';
+					} );
+		}
+
+		// Check if we need to preload images from it.
+		if ( !preloaded[ skinName ] )
+		{
+			var preload = skinDefinition.preload;
+			if ( preload && preload.length > 0 )
+			{
+				appendSkinPath( preload );
+				CKEDITOR.imageCacher.load( preload, function()
+					{
+						preloaded[ skinName ] = 1;
+						loadPart( editor, skinName, part, callback );
+					} );
+				return;
+			}
+
+			// Mark it as preloaded.
+			preloaded[ skinName ] = 1;
+		}
+
+		// Get the part definition.
+		part = skinDefinition[ part ];
+		var partIsLoaded = !part || !!part._isLoaded;
+
+		// Call the callback immediately if already loaded.
+		if ( partIsLoaded )
+			callback && callback();
+		else
+		{
+			// Put the callback in a queue.
+			var pending = part._pending || ( part._pending = [] );
+			pending.push( callback );
+
+			// We may have more than one skin part load request. Just the first
+			// one must do the loading job.
+			if ( pending.length > 1 )
+				return;
+
+			// Check whether the "css" and "js" properties have been defined
+			// for that part.
+			var cssIsLoaded = !part.css || !part.css.length;
+			var jsIsLoaded = !part.js || !part.js.length;
+
+			// This is the function that will trigger the callback calls on
+			// load.
+			var checkIsLoaded = function()
+			{
+				if ( cssIsLoaded && jsIsLoaded )
+				{
+					// Mark the part as loaded.
+					part._isLoaded = 1;
+
+					// Call all pending callbacks.
+					for ( var i = 0 ; i < pending.length ; i++ )
+					{
+						if ( pending[ i ] )
+							pending[ i ]();
+					}
+				}
+			};
+
+			// Load the "css" pieces.
+			if ( !cssIsLoaded )
+			{
+				var cssPart = part.css;
+
+				if ( CKEDITOR.tools.isArray( cssPart ) )
+				{
+					appendSkinPath( cssPart );
+					for ( var c = 0 ; c < cssPart.length ; c++ )
+						CKEDITOR.document.appendStyleSheet( cssPart[ c ] );
+				}
+				else
+				{
+					cssPart = fixCSSTextRelativePath(
+								cssPart, CKEDITOR.getUrl( paths[ skinName ] ) );
+					// Processing Inline CSS part.
+					CKEDITOR.document.appendStyleText( cssPart );
+				}
+
+				part.css = cssPart;
+
+				cssIsLoaded = 1;
+			}
+
+			// Load the "js" pieces.
+			if ( !jsIsLoaded )
+			{
+				appendSkinPath( part.js );
+				CKEDITOR.scriptLoader.load( part.js, function()
+					{
+						jsIsLoaded = 1;
+						checkIsLoaded();
+					});
+			}
+
+			// We may have nothing to load, so check it immediately.
+			checkIsLoaded();
+		}
+	};
+
+	return /** @lends CKEDITOR.skins */ {
+
+		/**
+		 * Registers a skin definition.
+		 * @param {String} skinName The skin name.
+		 * @param {Object} skinDefinition The skin definition.
+		 * @example
+		 */
+		add : function( skinName, skinDefinition )
+		{
+			loaded[ skinName ] = skinDefinition;
+
+			skinDefinition.skinPath = paths[ skinName ]
+				|| ( paths[ skinName ] =
+						CKEDITOR.getUrl(
+							'_source/' +	// @Packager.RemoveLine
+							'skins/' + skinName + '/' ) );
+		},
+
+		/**
+		 * Loads a skin part. Skins are defined in parts, which are basically
+		 * separated CSS files. This function is mainly used by the core code and
+		 * should not have much use out of it.
+		 * @param {String} skinName The name of the skin to be loaded.
+		 * @param {String} skinPart The skin part to be loaded. Common skin parts
+		 *		are "editor" and "dialog".
+		 * @param {Function} [callback] A function to be called once the skin
+		 *		part files are loaded.
+		 * @example
+		 */
+		load : function( editor, skinPart, callback )
+		{
+			var skinName = editor.skinName,
+				skinPath = editor.skinPath;
+
+			if ( loaded[ skinName ] )
+				loadPart( editor, skinName, skinPart, callback );
+			else
+			{
+				paths[ skinName ] = skinPath;
+				CKEDITOR.scriptLoader.load( CKEDITOR.getUrl( skinPath + 'skin.js' ), function()
+						{
+							 loadPart( editor, skinName, skinPart, callback );
+						});
+			}
+		}
+	};
+})();