source: extensions/FCKEditor/editor/_source/classes/fckxml_gecko.js @ 3295

/*
 * 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 ==
 *
 * FCKXml Class: class to load and manipulate XML files.
 */

FCKXml.prototype =
{
        LoadUrl : function( urlToCall )
        {
                this.Error = false ;

                var oXml ;
                var oXmlHttp = FCKTools.CreateXmlObject( 'XmlHttp' ) ;
                oXmlHttp.open( 'GET', urlToCall, false ) ;
                oXmlHttp.send( null ) ;

                if ( oXmlHttp.status == 200 || oXmlHttp.status == 304 || ( oXmlHttp.status == 0 && oXmlHttp.readyState == 4 ) )
                {
                        oXml = oXmlHttp.responseXML ;
                        // #1426: Fallback if responseXML isn't set for some
                        // reason (e.g. improperly configured web server)
                        if ( !oXml )
                                oXml = (new DOMParser()).parseFromString( oXmlHttp.responseText, 'text/xml' ) ;
                }
                else
                        oXml = null ;

                if ( oXml )
                {
                        // Try to access something on it.
                        try
                        {
                                var test = oXml.firstChild ;
                        }
                        catch (e)
                        {
                                // If document.domain has been changed (#123), we'll have a security
                                // error at this point. The workaround here is parsing the responseText:
                                // http://alexander.kirk.at/2006/07/27/firefox-15-xmlhttprequest-reqresponsexml-and-documentdomain/
                                oXml = (new DOMParser()).parseFromString( oXmlHttp.responseText, 'text/xml' ) ;
                        }
                }

                if ( !oXml || !oXml.firstChild )
                {
                        this.Error = true ;
                        if ( window.confirm( 'Error loading "' + urlToCall + '" (HTTP Status: ' + oXmlHttp.status + ').\r\nDo you want to see the server response dump?' ) )
                                alert( oXmlHttp.responseText ) ;
                }

                this.DOMDocument = oXml ;
        },

        SelectNodes : function( xpath, contextNode )
        {
                if ( this.Error )
                        return new Array() ;

                var aNodeArray = new Array();

                var xPathResult = this.DOMDocument.evaluate( xpath, contextNode ? contextNode : this.DOMDocument,
                                this.DOMDocument.createNSResolver(this.DOMDocument.documentElement), XPathResult.ORDERED_NODE_ITERATOR_TYPE, null) ;
                if ( xPathResult )
                {
                        var oNode = xPathResult.iterateNext() ;
                        while( oNode )
                        {
                                aNodeArray[aNodeArray.length] = oNode ;
                                oNode = xPathResult.iterateNext();
                        }
                }
                return aNodeArray ;
        },

        SelectSingleNode : function( xpath, contextNode )
        {
                if ( this.Error )
                        return null ;

                var xPathResult = this.DOMDocument.evaluate( xpath, contextNode ? contextNode : this.DOMDocument,
                                this.DOMDocument.createNSResolver(this.DOMDocument.documentElement), 9, null);

                if ( xPathResult && xPathResult.singleNodeValue )
                        return xPathResult.singleNodeValue ;
                else
                        return null ;
        }
} ;