/* * FCKeditor - The text editor for Internet - http://www.fckeditor.net * Copyright (C) 2003-2009 Frederico Caldeira Knabben * * == BEGIN LICENSE == * * Licensed under the terms of any of the following licenses at your * choice: * * - GNU General Public License Version 2 or later (the "GPL") * http://www.gnu.org/licenses/gpl.html * * - GNU Lesser General Public License Version 2.1 or later (the "LGPL") * http://www.gnu.org/licenses/lgpl.html * * - Mozilla Public License Version 1.1 or later (the "MPL") * http://www.mozilla.org/MPL/MPL-1.1.html * * == END LICENSE == * * Preload a list of images, firing an event when complete. */ var FCKImagePreloader = function() { this._Images = new Array() ; } FCKImagePreloader.prototype = { AddImages : function( images ) { if ( typeof( images ) == 'string' ) images = images.split( ';' ) ; this._Images = this._Images.concat( images ) ; }, Start : function() { var aImages = this._Images ; this._PreloadCount = aImages.length ; for ( var i = 0 ; i < aImages.length ; i++ ) { var eImg = document.createElement( 'img' ) ; FCKTools.AddEventListenerEx( eImg, 'load', _FCKImagePreloader_OnImage, this ) ; FCKTools.AddEventListenerEx( eImg, 'error', _FCKImagePreloader_OnImage, this ) ; eImg.src = aImages[i] ; _FCKImagePreloader_ImageCache.push( eImg ) ; } } }; // All preloaded images must be placed in a global array, otherwise the preload // magic will not happen. var _FCKImagePreloader_ImageCache = new Array() ; function _FCKImagePreloader_OnImage( ev, imagePreloader ) { if ( (--imagePreloader._PreloadCount) == 0 && imagePreloader.OnComplete ) imagePreloader.OnComplete() ; }