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.status != 200 && oXmlHttp.status != 304 ) || oXmlHttp.responseXML == null || oXmlHttp.responseXML.firstChild == null )
65				{
66					alert( 'The server didn\'t send back a proper XML response. Please contact your system administrator.\n\n' +
67							'XML request error: ' + oXmlHttp.statusText + ' (' + oXmlHttp.status + ')\n\n' +
68							'Requested URL:\n' + urlToCall + '\n\n' +
69							'Response text:\n' + oXmlHttp.responseText ) ;
70					return ;
71				}
72
73				oFCKXml.DOMDocument = oXmlHttp.responseXML ;
74				asyncFunctionPointer( oFCKXml ) ;
75			}
76		}
77	}
78
79	oXmlHttp.send( null ) ;
80
81	if ( ! bAsync )
82	{
83		if ( oXmlHttp.status == 200 || oXmlHttp.status == 304 )
84			this.DOMDocument = oXmlHttp.responseXML ;
85		else
86		{
87			alert( 'XML request error: ' + oXmlHttp.statusText + ' (' + oXmlHttp.status + ')' ) ;
88		}
89	}
90}
91
92FCKXml.prototype.SelectNodes = function( xpath )
93{
94	if ( navigator.userAgent.indexOf('MSIE') >= 0 )		// IE
95		return this.DOMDocument.selectNodes( xpath ) ;
96	else					// Gecko
97	{
98		var aNodeArray = new Array();
99
100		var xPathResult = this.DOMDocument.evaluate( xpath, this.DOMDocument,
101				this.DOMDocument.createNSResolver(this.DOMDocument.documentElement), XPathResult.ORDERED_NODE_ITERATOR_TYPE, null) ;
102		if ( xPathResult )
103		{
104			var oNode = xPathResult.iterateNext() ;
105 			while( oNode )
106 			{
107 				aNodeArray[aNodeArray.length] = oNode ;
108 				oNode = xPathResult.iterateNext();
109 			}
110		}
111		return aNodeArray ;
112	}
113}
114
115FCKXml.prototype.SelectSingleNode = function( xpath )
116{
117	if ( navigator.userAgent.indexOf('MSIE') >= 0 )		// IE
118		return this.DOMDocument.selectSingleNode( xpath ) ;
119	else					// Gecko
120	{
121		var xPathResult = this.DOMDocument.evaluate( xpath, this.DOMDocument,
122				this.DOMDocument.createNSResolver(this.DOMDocument.documentElement), 9, null);
123
124		if ( xPathResult && xPathResult.singleNodeValue )
125			return xPathResult.singleNodeValue ;
126		else
127			return null ;
128	}
129}
130