/*
 * FCKeditor - The text editor for internet
 * Copyright (C) 2003-2004 Frederico Caldeira Knabben
 * 
 * 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 Name: fckpanel_gecko.js
 * FCKPanel Class: Creates and manages floating panels in Gecko Browsers.
 * 
 * Version:  2.0 RC3
 * Modified: 2005-02-23 18:56:41
 * 
 * File Authors:
 * Frederico Caldeira Knabben (fredck@fckeditor.net)
 */

var FCKPanel = function( parentWindow )
{
if ( parentWindow )
this.Window = parentWindow ;
else
{
this.Window = window ;

while ( this.Window != window.top )
{
// Try/Catch must be used to avoit an error when using a frameset 
// on a different domain: 
// "Permission denied to get property HTMLDocument.Body".
try
{
if ( this.Window.parent.document.body.tagName == 'FRAMESET' )
break ;
}
catch (e)
{
break ;
}

this.Window = this.Window.parent ;
}
}
}

FCKPanel.prototype.Create = function()
{
this._IFrame = this.Window.document.body.appendChild( this.Window.document.createElement('IFRAME') ) ;
this._IFrame.src = 'about:blank' ;
    this._IFrame.frameBorder= '0';
    this._IFrame.scrolling= 'no' ;
    this._IFrame.style.left= '0px' ;
this._IFrame.style.top= '0px' ;
    this._IFrame.width= 10 ;
this._IFrame.height= 10 ;
    this._IFrame.style.position= 'absolute';
this._IFrame.style.visibility= 'hidden' ;

this._IFrame.IsFCKPanel= true ;
this._IFrame.Panel= this ;

this.Document = this._IFrame.contentWindow.document ;

// Initialize the IFRAME document body.
this.Document.open() ;
this.Document.write( '<html><head></head><body><\/body><\/html>' ) ;
this.Document.close() ;

// Remove the default margins.
this.Document.body.style.margin = this.Document.body.style.padding = '0px' ;

// Add the defined Style Sheet to the document.
if ( this.StyleSheet )
FCKTools.AppendStyleSheet( this.Document, this.StyleSheet ) ;


this.OuterDiv = this.Document.body.appendChild( this.Document.createElement('DIV') ) ;
this.OuterDiv.style.cssFloat = 'left' ;

this.PanelDiv = this.OuterDiv.appendChild( this.Document.createElement('DIV') ) ;
this.PanelDiv.className = 'FCK_Panel' ;

this.Created = true ;
}

FCKPanel.prototype.Show = function( panelX, panelY, relElement, width, height, autoSize  )
{
if ( ! this.Created )
this.Create() ;

if ( width != null && autoSize && width < this.OuterDiv.offsetWidth )
this.PanelDiv.style.width = width ;

if ( height != null && autoSize && height < this.PanelDiv.offsetHeight )
this.PanelDiv.style.height = height + 'px' ;

var oPos = this.GetElementPosition( relElement ) ;

panelX += oPos.X ;
panelY += oPos.Y ;

if ( panelX + this.OuterDiv.offsetWidth > this.Window.innerWidth )
{
// The following line aligns the panel to the other side of the refElement.
// panelX = oPos.X - ( this.PanelDiv.offsetWidth - relElement.offsetWidth ) ;

panelX -= panelX + this.OuterDiv.offsetWidth - this.Window.innerWidth ;
}

// Set the context menu DIV in the specified location.
this._IFrame.style.left= panelX + 'px' ;
this._IFrame.style.top= panelY + 'px' ;

// Watch the "OnClick" event for all windows to close the Context Menu.
function SetOnClickListener( targetWindow, targetFunction )
{
// Try/Catch must be used to avoit an error when using a frameset 
// on a different domain: 
// "Permission denied to get property Window.frameElement".
try 
{
if ( targetWindow == null || ( targetWindow.frameElement && targetWindow.frameElement.IsFCKPanel ) )
return ;

targetWindow.document.addEventListener( 'click', targetFunction, false ) ;
}
catch (e) {}

for ( var i = 0 ; i < targetWindow.frames.length ; i++ )
SetOnClickListener( targetWindow.frames[i], targetFunction ) ;
}
SetOnClickListener( window.top, FCKPanelEventHandlers.OnDocumentClick ) ;

this._IFrame.width= this.OuterDiv.offsetWidth ;
this._IFrame.height = this.OuterDiv.offsetHeight ;

// Show it.
this._IFrame.style.visibility = '' ;
}

FCKPanel.prototype.GetElementPosition = function( el )
{
// Initializes the Coordinates object that will be returned by the function.
var c = { X:0, Y:0 } ;

// Loop throw the offset chain.
while ( el )
{
c.X += el.offsetLeft ;
c.Y += el.offsetTop ;

if ( el.offsetParent == null && el.ownerDocument.defaultView != this.Window )
el = el.ownerDocument.defaultView.frameElement ;
else
el = el.offsetParent ;
}

// Return the Coordinates object
return c ;
}

FCKPanel.prototype.Hide = function()
{
// There is a bug on Firefox over Mac. It doesn't hide the Panel
// scrollbars, so we must force it.
this.PanelDiv.style.overflow = 'visible' ;

this._IFrame.style.visibility = 'hidden' ;
//this._IFrame.style.left = this._IFrame.style.top = '0px' ;
}

var FCKPanelEventHandlers = new Object() ;

FCKPanelEventHandlers.OnDocumentClick = function( e )
{
var oWindow = e.target.ownerDocument.defaultView ;

if ( ! oWindow.IsFCKPanel )
{
function RemoveOnClickListener( targetWindow )
{
if ( targetWindow == null )
return ;

// Try/Catch must be used to avoit an error when using a frameset 
// on a different domain: 
// "Permission denied to get property Window.frameElement".
try 
{
if ( targetWindow.frameElement && targetWindow.frameElement.IsFCKPanel )
targetWindow.frameElement.Panel.Hide() ;
else
targetWindow.document.removeEventListener( 'click', FCKPanelEventHandlers.OnDocumentClick, false ) ;
}
catch (e) {}

for ( var i = 0 ; i < targetWindow.frames.length ; i++ )
RemoveOnClickListener( targetWindow.frames[i] ) ;
}
RemoveOnClickListener( window.top ) ;
}
}
