1/*
2 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
3 * Copyright (C) 2003-2007 Frederico Caldeira Knabben
4 *
5 * == BEGIN LICENSE ==
6 *
7 * Licensed under the terms of any of the following licenses at your
8 * choice:
9 *
10 *  - GNU General Public License Version 2 or later (the "GPL")
11 *    http://www.gnu.org/licenses/gpl.html
12 *
13 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
14 *    http://www.gnu.org/licenses/lgpl.html
15 *
16 *  - Mozilla Public License Version 1.1 or later (the "MPL")
17 *    http://www.mozilla.org/MPL/MPL-1.1.html
18 *
19 * == END LICENSE ==
20 *
21 * FCKXml Class: class to load and manipulate XML files.
22 */
23
24FCKXml.prototype =
25{
26	LoadUrl : function( urlToCall )
27	{
28		this.Error = false ;
29		var oFCKXml = this ;
30
31		var oXmlHttp = FCKTools.CreateXmlObject( 'XmlHttp' ) ;
32		oXmlHttp.open( "GET", urlToCall, false ) ;
33		oXmlHttp.send( null ) ;
34
35		if ( oXmlHttp.status == 200 || oXmlHttp.status == 304 )
36			this.DOMDocument = oXmlHttp.responseXML ;
37		else if ( oXmlHttp.status == 0 && oXmlHttp.readyState == 4 )
38			this.DOMDocument = oXmlHttp.responseXML ;
39		else
40			this.DOMDocument = null ;
41
42		if ( this.DOMDocument == null || this.DOMDocument.firstChild == null )
43		{
44			this.Error = true ;
45			if (window.confirm( 'Error loading "' + urlToCall + '"\r\nDo you want to see more info?' ) )
46				alert( 'URL requested: "' + urlToCall + '"\r\n' +
47							'Server response:\r\nStatus: ' + oXmlHttp.status + '\r\n' +
48							'Response text:\r\n' + oXmlHttp.responseText ) ;
49
50		}
51	},
52
53	SelectNodes : function( xpath, contextNode )
54	{
55		if ( this.Error )
56			return new Array() ;
57
58		var aNodeArray = new Array();
59
60		var xPathResult = this.DOMDocument.evaluate( xpath, contextNode ? contextNode : this.DOMDocument,
61				this.DOMDocument.createNSResolver(this.DOMDocument.documentElement), XPathResult.ORDERED_NODE_ITERATOR_TYPE, null) ;
62		if ( xPathResult )
63		{
64			var oNode = xPathResult.iterateNext() ;
65			while( oNode )
66			{
67				aNodeArray[aNodeArray.length] = oNode ;
68				oNode = xPathResult.iterateNext();
69			}
70		}
71		return aNodeArray ;
72	},
73
74	SelectSingleNode : function( xpath, contextNode )
75	{
76		if ( this.Error )
77			return null ;
78
79		var xPathResult = this.DOMDocument.evaluate( xpath, contextNode ? contextNode : this.DOMDocument,
80				this.DOMDocument.createNSResolver(this.DOMDocument.documentElement), 9, null);
81
82		if ( xPathResult && xPathResult.singleNodeValue )
83			return xPathResult.singleNodeValue ;
84		else
85			return null ;
86	}
87} ;