/*
 * AJAX Implementation inspired by implementation for:
 * FCKeditor - The text editor for internet
 * Copyright (C) 2003-2005 Frederico Caldeira Knabben
 * Copyright (C) 2005 Oliver Welter
 *
 * 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/
 * File Authors:
 * 		Frederico Caldeira Knabben (fredck@fckeditor.net)
 * 		Oliver Welter	(oliwel@microblue.de)
 */

var FCKXml = function()
{}

function escapeHTML(text) {
text=text.replace('\n','');
text=text.replace('&','&');
text=text.replace('<','&lt;');
text=text.replace('>','&gt;');
return text;
}

FCKXml.prototype.GetHttpRequest = function()
{
	if ( window.XMLHttpRequest )		// Gecko
		return new XMLHttpRequest() ;
	else if ( window.ActiveXObject )	// IE
		return new ActiveXObject("MsXml2.XmlHttp") ;
}

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 )
			{
				/*
				dbgWin=window.open('','dbgWin','width=700,height=400');
				txt=dbgWin.document.getElementById('txtXML');

				if (txt==null) {
					dbgWin.document.write("<textarea style=\"width: 100%; height: 100%\" id=\"txtXML\"></textarea>");
					txt=dbgWin.document.getElementById('txtXML');
				}

				txt.value=new String("-----------------------------------------\n" + oXmlHttp.responseText);
				*/

				oFCKXml.DOMDocument = oXmlHttp.responseXML ;
				asyncFunctionPointer( oFCKXml ) ;
			}
		}
	}

	oXmlHttp.send( null ) ;

	if ( ! bAsync ) {
		this.DOMDocument = oXmlHttp.responseXML ;
		this.TextDocument = oXmlHttp.responseText;
	}
}

FCKXml.prototype.SelectNodes = function( xpath )
{
	if ( document.all )		// 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 ( document.all )		// 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 ;
	}
}

function makeAjaxRequest( command, callBackFunction )
{

	var oXML = new FCKXml() ;

	if ( callBackFunction )
		oXML.LoadUrl( command, callBackFunction ) ;	// Asynchronous load.
	else
		return oXML.LoadUrl( command ) ;
}



function getAjaxObject( objectclass, id, params, callBackFunction ) {
	makeAjaxRequest('./getAjaxObject.php?CLASS='+objectclass+'&ID='+id+'&PARAMS='+params, callBackFunction );
}

function setAjaxObject( body, params, callBackFunction ) {

	var oXML = new FCKXml() ;

	if ( callBackFunction )
		oXML.PostUrl( "setAjaxObject.php","PARAMS="+encodeURI(params)+"&DATA="+encodeURI(body), callBackFunction ) ;	// Asynchronous load
	else
		return oXML.PostUrl( command, "CLASS="+objectclass+"\\nDATA="+encodeURI(body) ) ;
}

function parseAjaxObject(fckXml) {
	var myData=new Object;
	var oNodes = fckXml.SelectNodes( 'Connector/Object/Data' ) ;
	if (oNodes!=null) {
		for ( var i = 0 ; i < oNodes.length ; i++ )
		{
			var sItemName = oNodes[i].attributes.getNamedItem('name').value ;
			var sItemValue = oNodes[i].firstChild.data;
			myData[sItemName] = sItemValue;
		}
	}
	return myData;
}


function GetFoldersAndFilesCallBack( fckXml )
{
	// Get the current folder path.
	var oNode = fckXml.SelectSingleNode( 'Connector/CurrentFolder' ) ;
	var sCurrentFolderPath	= oNode.attributes.getNamedItem('path').value ;
	var sCurrentFolderUrl	= oNode.attributes.getNamedItem('url').value ;

	// Add the Folders.
	var oNodes = fckXml.SelectNodes( 'Connector/Folders/Folder' ) ;

	if (oNodes!=null) {
		for ( var i = 0 ; i < oNodes.length ; i++ )
		{
			var sFolderName = oNodes[i].attributes.getNamedItem('name').value ;
			oListManager.AddFolder( sFolderName, sCurrentFolderPath + sFolderName + "/" ) ;
		}
	}

	// Add the Files.
	var oNodes = fckXml.SelectNodes( 'Connector/Files/File' ) ;
	if (oNodes!=null) {
		for ( var i = 0 ; i < oNodes.length ; i++ )
		{
			var sFileName = oNodes[i].attributes.getNamedItem('name').value ;
			var sFileSize = oNodes[i].attributes.getNamedItem('size').value ;
			var iEditable = oNodes[i].attributes.getNamedItem('editable') ;
			if (iEditable!=null) {
				iEditable = iEditable.value;
			} else {
				iEditable = 0;
			}

		}
	}

}