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 * Defines the FCKXml object that is used for XML data calls
22 * and XML processing.
23 *
24 * This script is shared by almost all pages that compose the
25 * File Browser frameset.
26 */
27
28var FCKXml = function()
29{}
30
31FCKXml.prototype.GetHttpRequest = function()
32{
33	// Gecko / IE7
34	if ( typeof(XMLHttpRequest) != 'undefined' )
35		return new XMLHttpRequest() ;
36
37	// IE6
38	try { return new ActiveXObject( 'Msxml2.XMLHTTP' ) ; }
39	catch(e) {}
40
41	// IE5
42	try { return new ActiveXObject( 'Microsoft.XMLHTTP' ) ; }
43	catch(e) {}
44
45	return null ;
46}
47
48FCKXml.prototype.LoadUrl = function( urlToCall, asyncFunctionPointer )
49{
50	var oFCKXml = this ;
51
52	var bAsync = ( typeof(asyncFunctionPointer) == 'function' ) ;
53
54	var oXmlHttp = this.GetHttpRequest() ;
55
56	oXmlHttp.open( "GET", urlToCall, bAsync ) ;
57
58	if ( bAsync )
59	{
60		oXmlHttp.onreadystatechange = function()
61		{
62			if ( oXmlHttp.readyState == 4 )
63			{
64				if ( oXmlHttp.responseXML == null || oXmlHttp.responseXML.firstChild == null)
65				{
66					alert( 'The server didn\'t send back a proper XML response.\r\n\r\n' +
67							'Requested URL: ' + urlToCall + '\r\n' +
68							'Response text:\r\n' + oXmlHttp.responseText ) ;
69					return ;
70				}
71				oFCKXml.DOMDocument = oXmlHttp.responseXML ;
72				if ( oXmlHttp.status == 200 || oXmlHttp.status == 304 )
73					asyncFunctionPointer( oFCKXml ) ;
74				else
75					alert( 'XML request error: ' + oXmlHttp.statusText + ' (' + oXmlHttp.status + ')' ) ;
76			}
77		}
78	}
79
80	oXmlHttp.send( null ) ;
81
82	if ( ! bAsync )
83	{
84		if ( oXmlHttp.status == 200 || oXmlHttp.status == 304 )
85			this.DOMDocument = oXmlHttp.responseXML ;
86		else
87		{
88			alert( 'XML request error: ' + oXmlHttp.statusText + ' (' + oXmlHttp.status + ')' ) ;
89		}
90	}
91}
92
93FCKXml.prototype.SelectNodes = function( xpath )
94{
95	if ( navigator.userAgent.indexOf('MSIE') >= 0 )		// IE
96		return this.DOMDocument.selectNodes( xpath ) ;
97	else					// Gecko
98	{
99		var aNodeArray = new Array();
100
101		var xPathResult = this.DOMDocument.evaluate( xpath, this.DOMDocument,
102				this.DOMDocument.createNSResolver(this.DOMDocument.documentElement), XPathResult.ORDERED_NODE_ITERATOR_TYPE, null) ;
103		if ( xPathResult )
104		{
105			var oNode = xPathResult.iterateNext() ;
106 			while( oNode )
107 			{
108 				aNodeArray[aNodeArray.length] = oNode ;
109 				oNode = xPathResult.iterateNext();
110 			}
111		}
112		return aNodeArray ;
113	}
114}
115
116FCKXml.prototype.SelectSingleNode = function( xpath )
117{
118	if ( navigator.userAgent.indexOf('MSIE') >= 0 )		// IE
119		return this.DOMDocument.selectSingleNode( xpath ) ;
120	else					// Gecko
121	{
122		var xPathResult = this.DOMDocument.evaluate( xpath, this.DOMDocument,
123				this.DOMDocument.createNSResolver(this.DOMDocument.documentElement), 9, null);
124
125		if ( xPathResult && xPathResult.singleNodeValue )
126			return xPathResult.singleNodeValue ;
127		else
128			return null ;
129	}
130}
131