source: trunk/admin/inc/FCKeditor/editor/filemanager/browser/default/js/fckxml.js@ 2

/*
 * FCKeditor - The text editor for internet
 * Copyright (C) 2003-2006 Frederico Caldeira Knabben
 * 
 * Licensed under the terms of the GNU Lesser General Public License:
 *              http://www.opensource.org/licenses/lgpl-license.php
 * 
 * For further information visit:
 *              http://www.fckeditor.net/
 * 
 * "Support Open Source software. What about a donation today?"
 * 
 * File Name: fckxml.js
 *      Defines the FCKXml object that is used for XML data calls
 *      and XML processing.
 *      This script is shared by almost all pages that compose the 
 *      File Browser frameset.
 * 
 * File Authors:
 *              Frederico Caldeira Knabben (fredck@fckeditor.net)
 */

var FCKXml = function()
{}

FCKXml.prototype.GetHttpRequest = function()
{
        // Gecko / IE7
        if ( typeof(XMLHttpRequest) != 'undefined' )
                return new XMLHttpRequest() ;

        // IE6
        try { return new ActiveXObject("Msxml2.XMLHTTP") ; } 
        catch(e) {}

        // IE5
        try { return new ActiveXObject("Microsoft.XMLHTTP") ; }
        catch(e) {}
}

FCKXml.prototype.LoadUrl = function( urlToCall, asyncFunctionPointer )
{
        var oFCKXml = this ;

        var bAsync = ( typeof(asyncFunctionPointer) == 'function' ) ;

        var oXmlHttp = this.GetHttpRequest() ;
                
        oXmlHttp.open( "GET", urlToCall, bAsync ) ;
        
        if ( bAsync )
        {       
                oXmlHttp.onreadystatechange = function() 
                {
                        if ( oXmlHttp.readyState == 4 )
                        {
                                oFCKXml.DOMDocument = oXmlHttp.responseXML ;
                                if ( oXmlHttp.status == 200 || oXmlHttp.status == 304 )
                                        asyncFunctionPointer( oFCKXml ) ;
                                else
                                        alert( 'XML request error: ' + oXmlHttp.statusText + ' (' + oXmlHttp.status + ')' ) ;
                        }
                }
        }
        
        oXmlHttp.send( null ) ;
        
        if ( ! bAsync )
        {
                if ( oXmlHttp.status == 200 || oXmlHttp.status == 304 )
                        this.DOMDocument = oXmlHttp.responseXML ;
                else
                {
                        alert( 'XML request error: ' + oXmlHttp.statusText + ' (' + oXmlHttp.status + ')' ) ;
                }
        }
}

FCKXml.prototype.SelectNodes = function( xpath )
{
        if ( navigator.userAgent.indexOf('MSIE') >= 0 )         // IE
                return this.DOMDocument.selectNodes( xpath ) ;
        else                                    // Gecko
        {
                var aNodeArray = new Array();

                var xPathResult = this.DOMDocument.evaluate( xpath, 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 ;
        }
}

FCKXml.prototype.SelectSingleNode = function( xpath ) 
{
        if ( navigator.userAgent.indexOf('MSIE') >= 0 )         // IE
                return this.DOMDocument.selectSingleNode( xpath ) ;
        else                                    // Gecko
        {
                var xPathResult = this.DOMDocument.evaluate( xpath, this.DOMDocument,
                                this.DOMDocument.createNSResolver(this.DOMDocument.documentElement), 9, null);

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