},
	// Calculate the real width of the table cell.
	// The real width of the table cell is the pixel width that you can set to the width attribute of the table cell and after
	// that, the table cell should be of exactly the same width as before.
	// The real width of a table cell can be calculated as:
	// width = clientWidth - paddingLeft - paddingRight.
	"_GetCellWidth" : function( table, cell )
	{
		var clientWidth = cell.clientWidth ;
		if ( isNaN( clientWidth ) )
			clientWidth = 0 ;
		return clientWidth - this._GetCellPadding( table, cell ) ;
	},
	"MouseMoveListener" : function( FCK, evt )
	{
		if ( FCKDragTableHandler._MouseMoveMode == 0 )
			return FCKDragTableHandler._MouseFindHandler( FCK, evt ) ;
		else
			return FCKDragTableHandler._MouseDragHandler( FCK, evt ) ;
	},
	"_MouseFindHandler" : function( FCK, evt )
	{
		if ( FCK.MouseDownFlag )
			return ;
		var node = evt.srcElement || evt.target ;
		try
		{
			if ( ! node || node.nodeType != 1 )
			{
				this._HideResizeBar() ;
				return ;
			}
		}
		catch ( e )
		{
			this._HideResizeBar() ;
			return ;
		}

		// Since this function might be called from the editing area iframe or the outer fckeditor iframe,
		// the mouse point coordinates from evt.clientX/Y can have different reference points.
		// We need to resolve the mouse pointer position relative to the editing area iframe.
		var mouseX = evt.clientX ;
		var mouseY = evt.clientY ;
		if ( FCKTools.GetElementDocument( node ) == document )
		{
			var offset = this._GetIframeOffset() ;
			mouseX -= offset.x ;
			mouseY -= offset.y ;
		}


		if ( this._ResizeBar && this._LeftCell )
		{
			var leftPos = FCKTools.GetWindowPosition( FCK.EditorWindow, this._LeftCell ) ;
			var rightPos = FCKTools.GetWindowPosition( FCK.EditorWindow, this._RightCell ) ;
			var rxDist = mouseX - ( leftPos.x + this._LeftCell.clientWidth ) ;
			var lxDist = mouseX - rightPos.x ;
			var inRangeFlag = false ;
			if ( lxDist >= 0 && rxDist <= 0 )
				inRangeFlag = true ;
			else if ( rxDist > 0 && lxDist <= 3 )
				inRangeFlag = true ;
			else if ( lxDist < 0 && rxDist >= -2 )
				inRangeFlag = true ;
			if ( inRangeFlag )
			{
				this._ShowResizeBar( FCK.EditorWindow,
					FCKTools.GetElementAscensor( this._LeftCell, "table" ),
					{ "x" : mouseX, "y" : mouseY } ) ;
				return ;
			}
		}

		var tagName = node.tagName.toLowerCase() ;
		if ( tagName != "table" && tagName != "td" && tagName != "th" )
		{
			if ( this._LeftCell )
				this._LeftCell = this._RightCell = this._TableMap = null ;
			this._HideResizeBar() ;
			return ;
		}
		node = FCKTools.GetElementAscensor( node, "table" ) ;
		var tableMap = FCKTableHandler._CreateTableMap( node ) ;
		var cellTuple = this._GetBorderCells( FCK.EditorWindow, node, tableMap, { "x" : mouseX, "y" : mouseY } ) ;

		if ( cellTuple == null )
		{
			if ( this._LeftCell )
				this._LeftCell = this._RightCell = this._TableMap = null ;
			this._HideResizeBar() ;
		}
		else
		{
			this._LeftCell = cellTuple["leftCell"] ;
			this._RightCell = cellTuple["rightCell"] ;
			this._TableMap = tableMap ;
			this._ShowResizeBar( FCK.EditorWindow,
					FCKTools.GetElementAscensor( this._LeftCell, "table" ),
					{ "x" : mouseX, "y" : mouseY } ) ;
		}
	},
	"_MouseDragHandler" : function( FCK, evt )
	{
		var mouse = { "x" : evt.clientX, "y" : evt.clientY } ;

		// Convert mouse coordinates in reference to the outer iframe.
		var node = evt.srcElement || evt.target ;
		if ( FCKTools.GetElementDocument( node ) == FCK.EditorDocument )
		{
			var offset = this._GetIframeOffset() ;
			mouse.x += offset.x ;
			mouse.y += offset.y ;
		}

		// Calculate the mouse position delta and see if we've gone out of range.
		if ( mouse.x >= this._MaximumX - 5 )
			mouse.x = this._MaximumX - 5 ;
		if ( mouse.x <= this._MinimumX + 5 )
			mouse.x = this._MinimumX + 5 ;

		var docX = mouse.x + FCKTools.GetScrollPosition( window ).X ;
		this._ResizeBar.style.left = ( docX - this._ResizeBar.offsetWidth / 2 ) + "px" ;
		this._LastX = mouse.x ;
	},
	"_ShowResizeBar" : function( w, table, mouse )
	{
		if ( this._ResizeBar == null )
		{
			this._ResizeBar = this._doc.createElement( "div" ) ;
			var paddingBar = this._ResizeBar ;
			var paddingStyles = { 'position' : 'absolute', 'cursor' : 'e-resize' } ;
			if ( FCKBrowserInfo.IsIE )
				paddingStyles.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=10,enabled=true)" ;
			else
				paddingStyles.opacity = 0.10 ;
			FCKDomTools.SetElementStyles( paddingBar, paddingStyles ) ;
			this._avoidStyles( paddingBar );
			paddingBar.setAttribute('_fcktemp', true);
			this._doc.body.appendChild( paddingBar ) ;
			FCKTools.AddEventListener( paddingBar, "mousemove", this._ResizeBarMouseMoveListener ) ;
			FCKTools.AddEventListener( paddingBar, "mousedown", this._ResizeBarMouseDownListener ) ;
			FCKTools.AddEventListener( document, "mouseup", this._ResizeBarMouseUpListener ) ;
			FCKTools.AddEventListener( FCK.EditorDocument, "mouseup", this._ResizeBarMouseUpListener ) ;

			// IE doesn't let the tranparent part of the padding block to receive mouse events unless there's something inside.
			// So we need to create a spacer image to fill the block up.
			var filler = this._doc.createElement( "img" ) ;
			filler.setAttribute('_fcktemp', true);
			filler.border = 0 ;
			filler.src = FCKConfig.BasePath + "images/spacer.gif" ;
			filler.style.position = "absolute" ;
			paddingBar.appendChild( filler ) ;

			// Disable drag and drop, and selection for the filler image.
			var disabledListener = function( evt )
			{
				if ( evt.preventDefault )
					evt.preventDefault() ;
				else
					evt.returnValue = false ;
			}
			FCKTools.AddEventListener( filler, "dragstart", disabledListener ) ;
			FCKTools.AddEventListener( filler, "selectstart", disabledListener ) ;
		}

		var paddingBar = this._ResizeBar ;
		var offset = this._GetIframeOffset() ;
		var tablePos = this._GetTablePosition( w, table ) ;
		var barHeight = table.offsetHeight ;
		var barTop = offset.y + tablePos.y ;
		// Do not let the resize bar intrude into the toolbar area.
		if ( tablePos.y < 0 )
		{
			barHeight += tablePos.y ;
			barTop -= tablePos.y ;
		}
		var bw = parseInt( table.border, 10 ) ;
		if ( isNaN( bw ) )
			bw = 0 ;
		var cs = parseInt( table.cellSpacing, 10 ) ;
		if ( isNaN( cs ) )
			cs = 0 ;
		var barWidth = Math.max( bw+100, cs+100 ) ;
		var paddingStyles =
		{
			'top'		: barTop + 'px',
			'height'	: barHeight + 'px',
			'width'		: barWidth + 'px',
			'left'		: ( offset.x + mouse.x + FCKTools.GetScrollPosition( w ).X - barWidth / 2 ) + 'px'
		} ;
		if ( FCKBrowserInfo.IsIE )
			paddingBar.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 10 ;
		else
			paddingStyles.opacity = 0.1 ;

		FCKDomTools.SetElementStyles( paddingBar, paddingStyles ) ;
		var filler = paddingBar.getElementsByTagName( "img" )[0] ;

		FCKDomTools.SetElementStyles( filler,
			{
				width	: paddingBar.offsetWidth + 'px',
				height	: barHeight + 'px'
			} ) ;

		barWidth = Math.max( bw, cs, 3 ) ;
		var visibleBar = null ;
		if ( paddingBar.getElementsByTagName( "div" ).length < 1 )
		{
			visibleBar = this._doc.createElement( "div" ) ;
			this._avoidStyles( visibleBar );
			visibleBar.setAttribute('_fcktemp', true);
			paddingBar.appendChild( visibleBar ) ;
		}
		else
			visibleBar = paddingBar.getElementsByTagName( "div" )[0] ;

		FCKDomTools.SetElementStyles( visibleBar,
			{
				position		: 'absolute',
				backgroundColor	: 'blue',
				width			: barWidth + 'px',
				height			: barHeight + 'px',
				left			: '50px',
				top				: '0px'
			} ) ;
	},
	"_HideResizeBar" : function()
	{
		if ( this._ResizeBar )
			// IE bug: display : none does not hide the resize bar for some reason.
			// so set the position to somewhere invisible.
			FCKDomTools.SetElementStyles( this._ResizeBar,
				{
					top		: '-100000px',
					left	: '-100000px'
				} ) ;
	},
	"_GetIframeOffset" : function ()
	{
		return FCKTools.GetDocumentPosition( window, FCK.EditingArea.IFrame ) ;
	},
	"_GetTablePosition" : function ( w, table )
	{
		return FCKTools.GetWindowPosition( w, table ) ;
	},
	"_avoidStyles" : function( element )
	{
		FCKDomTools.SetElementStyles( element,
			{
				padding		: '0',
				backgroundImage	: 'none',
				border		: '0'
			} ) ;
	},
	"Reset" : function()
	{
		FCKDragTableHandler._LeftCell = FCKDragTableHandler._RightCell = FCKDragTableHandler._TableMap = null ;
	}

};

FCK.Events.AttachEvent( "OnMouseMove", FCKDragTableHandler.MouseMoveListener ) ;
FCK.Events.AttachEvent( "OnAfterSetHTML", FCKDragTableHandler.Reset ) ;