Datenstand V1.0

ckeditor/_source/core/imagecacher.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
+*/
+
+(function()
+{
+	var loaded = {};
+
+	var loadImage = function( image, callback )
+	{
+		var doCallback = function()
+			{
+				img.removeAllListeners();
+				loaded[ image ] = 1;
+				callback();
+			};
+
+		var img = new CKEDITOR.dom.element( 'img' );
+		img.on( 'load', doCallback );
+		img.on( 'error', doCallback );
+		img.setAttribute( 'src', image );
+	};
+
+	/**
+	 * Load images into the browser cache.
+	 * @namespace
+	 * @example
+	 */
+ 	CKEDITOR.imageCacher =
+	{
+		/**
+		 * Loads one or more images.
+		 * @param {Array} images The URLs for the images to be loaded.
+		 * @param {Function} callback The function to be called once all images
+		 *		are loaded.
+		 */
+		load : function( images, callback )
+		{
+			var pendingCount = images.length;
+
+			var checkPending = function()
+			{
+				if ( --pendingCount === 0 )
+					callback();
+			};
+
+			for ( var i = 0 ; i < images.length ; i++ )
+			{
+				var image = images[ i ];
+
+				if ( loaded[ image ] )
+					checkPending();
+				else
+					loadImage( image, checkPending );
+			}
+		}
+	};
+})();