source: branches/1.2/workflow/js/fckeditor/editor/filemanager/browser/default/js/fckxml.js @ 1349

/*
 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
 * Copyright (C) 2003-2007 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 ==
 *
 * 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.
 */

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) {}

        return null ;
}

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 )
                        {
                                if ( oXmlHttp.responseXML == null || oXmlHttp.responseXML.firstChild == null)
                                {
                                        alert( 'The server didn\'t send back a proper XML response.\r\n\r\n' +
                                                        'Requested URL: ' + urlToCall + '\r\n' +
                                                        'Response text:\r\n' + oXmlHttp.responseText ) ;
                                        return ;
                                }
                                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 ;
        }
}