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503
FCKeditor/editor/plugins/dragresizetable/fckplugin.js
Normal file
503
FCKeditor/editor/plugins/dragresizetable/fckplugin.js
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var FCKDragTableHandler =
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{
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"_DragState" : 0,
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"_LeftCell" : null,
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"_RightCell" : null,
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"_MouseMoveMode" : 0, // 0 - find candidate cells for resizing, 1 - drag to resize
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"_ResizeBar" : null,
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"_OriginalX" : null,
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"_MinimumX" : null,
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"_MaximumX" : null,
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"_LastX" : null,
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"_TableMap" : null,
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"_IsInsideNode" : function( w, domNode, pos )
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{
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var myCoords = FCKTools.GetWindowPosition( w, domNode ) ;
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var xMin = myCoords.x ;
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var yMin = myCoords.y ;
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var xMax = parseInt( xMin, 10 ) + parseInt( domNode.offsetWidth, 10 ) ;
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var yMax = parseInt( yMin, 10 ) + parseInt( domNode.offsetHeight, 10 ) ;
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if ( pos.x >= xMin && pos.x <= xMax && pos.y >= yMin && pos.y <= yMax )
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return true;
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return false;
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},
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"_GetBorderCells" : function( w, tableNode, tableMap, mouse )
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{
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// Enumerate all the cells in the table.
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var cells = [] ;
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for ( var i = 0 ; i < tableNode.rows.length ; i++ )
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{
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var r = tableNode.rows[i] ;
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for ( var j = 0 ; j < r.cells.length ; j++ )
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cells.push( r.cells[j] ) ;
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}
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if ( cells.length < 1 )
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return null ;
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// Get the cells whose right or left border is nearest to the mouse cursor's x coordinate.
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var minRxDist = null ;
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var lxDist = null ;
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var minYDist = null ;
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var rbCell = null ;
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var lbCell = null ;
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for ( var i = 0 ; i < cells.length ; i++ )
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{
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var pos = FCKTools.GetWindowPosition( w, cells[i] ) ;
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var rightX = pos.x + parseInt( cells[i].clientWidth, 10 ) ;
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var rxDist = mouse.x - rightX ;
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var yDist = mouse.y - ( pos.y + ( cells[i].clientHeight / 2 ) ) ;
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if ( minRxDist == null ||
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( Math.abs( rxDist ) <= Math.abs( minRxDist ) &&
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( minYDist == null || Math.abs( yDist ) <= Math.abs( minYDist ) ) ) )
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{
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minRxDist = rxDist ;
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minYDist = yDist ;
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rbCell = cells[i] ;
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}
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}
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/*
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var rowNode = FCKTools.GetElementAscensor( rbCell, "tr" ) ;
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var cellIndex = rbCell.cellIndex + 1 ;
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if ( cellIndex >= rowNode.cells.length )
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return null ;
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lbCell = rowNode.cells.item( cellIndex ) ;
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*/
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var rowIdx = rbCell.parentNode.rowIndex ;
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var colIdx = FCKTableHandler._GetCellIndexSpan( tableMap, rowIdx, rbCell ) ;
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var colSpan = isNaN( rbCell.colSpan ) ? 1 : rbCell.colSpan ;
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lbCell = tableMap[rowIdx][colIdx + colSpan] ;
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if ( ! lbCell )
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return null ;
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// Abort if too far from the border.
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lxDist = mouse.x - FCKTools.GetWindowPosition( w, lbCell ).x ;
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if ( lxDist < 0 && minRxDist < 0 && minRxDist < -2 )
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return null ;
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if ( lxDist > 0 && minRxDist > 0 && lxDist > 3 )
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return null ;
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return { "leftCell" : rbCell, "rightCell" : lbCell } ;
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},
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"_GetResizeBarPosition" : function()
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{
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var row = FCKTools.GetElementAscensor( this._RightCell, "tr" ) ;
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return FCKTableHandler._GetCellIndexSpan( this._TableMap, row.rowIndex, this._RightCell ) ;
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},
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"_ResizeBarMouseDownListener" : function( evt )
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{
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if ( ! evt )
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evt = window.event ;
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if ( FCKDragTableHandler._LeftCell )
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FCKDragTableHandler._MouseMoveMode = 1 ;
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if ( FCKBrowserInfo.IsIE )
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FCKDragTableHandler._ResizeBar.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 50 ;
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else
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FCKDragTableHandler._ResizeBar.style.opacity = 0.5 ;
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FCKDragTableHandler._OriginalX = evt.clientX ;
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// Calculate maximum and minimum x-coordinate delta.
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var borderIndex = FCKDragTableHandler._GetResizeBarPosition() ;
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var offset = FCKTools.GetDocumentPosition( window, FCK.EditingArea.IFrame ) ;
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var table = FCKTools.GetElementAscensor( FCKDragTableHandler._LeftCell, "table" );
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var minX = null ;
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var maxX = null ;
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for ( var r = 0 ; r < FCKDragTableHandler._TableMap.length ; r++ )
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{
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var leftCell = FCKDragTableHandler._TableMap[r][borderIndex - 1] ;
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var rightCell = FCKDragTableHandler._TableMap[r][borderIndex] ;
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var leftPosition = FCKTools.GetWindowPosition( FCK.EditorWindow, leftCell ) ;
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var rightPosition = FCKTools.GetWindowPosition( FCK.EditorWindow, rightCell ) ;
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var leftPadding = FCKDragTableHandler._GetCellPadding( table, leftCell ) ;
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var rightPadding = FCKDragTableHandler._GetCellPadding( table, rightCell ) ;
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if ( minX == null || leftPosition.x + leftPadding > minX )
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minX = leftPosition.x + leftPadding ;
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if ( maxX == null || rightPosition.x + rightCell.clientWidth - rightPadding < maxX )
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maxX = rightPosition.x + rightCell.clientWidth - rightPadding ;
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}
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FCKDragTableHandler._MinimumX = minX + offset.x ;
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FCKDragTableHandler._MaximumX = maxX + offset.x ;
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FCKDragTableHandler._LastX = null ;
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},
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"_ResizeBarMouseUpListener" : function( evt )
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{
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if ( ! evt )
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evt = window.event ;
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FCKDragTableHandler._MouseMoveMode = 0 ;
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FCKDragTableHandler._HideResizeBar() ;
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if ( FCKDragTableHandler._LastX == null )
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return ;
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// Calculate the delta value.
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var deltaX = FCKDragTableHandler._LastX - FCKDragTableHandler._OriginalX ;
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// Then, build an array of current column width values.
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// This algorithm can be very slow if the cells have insane colSpan values. (e.g. colSpan=1000).
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var table = FCKTools.GetElementAscensor( FCKDragTableHandler._LeftCell, "table" ) ;
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var colArray = [] ;
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var tableMap = FCKDragTableHandler._TableMap ;
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for ( var i = 0 ; i < tableMap.length ; i++ )
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{
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for ( var j = 0 ; j < tableMap[i].length ; j++ )
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{
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var cell = tableMap[i][j] ;
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var width = FCKDragTableHandler._GetCellWidth( table, cell ) ;
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var colSpan = isNaN( cell.colSpan) ? 1 : cell.colSpan ;
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if ( colArray.length <= j )
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colArray.push( { width : width / colSpan, colSpan : colSpan } ) ;
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else
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{
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var guessItem = colArray[j] ;
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if ( guessItem.colSpan > colSpan )
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{
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guessItem.width = width / colSpan ;
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guessItem.colSpan = colSpan ;
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}
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}
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}
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}
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// Find out the equivalent column index of the two cells selected for resizing.
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colIndex = FCKDragTableHandler._GetResizeBarPosition() ;
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// Note that colIndex must be at least 1 here, so it's safe to subtract 1 from it.
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colIndex-- ;
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// Modify the widths in the colArray according to the mouse coordinate delta value.
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colArray[colIndex].width += deltaX ;
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colArray[colIndex + 1].width -= deltaX ;
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// Clear all cell widths, delete all <col> elements from the table.
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for ( var r = 0 ; r < table.rows.length ; r++ )
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{
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var row = table.rows.item( r ) ;
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for ( var c = 0 ; c < row.cells.length ; c++ )
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{
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var cell = row.cells.item( c ) ;
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cell.width = "" ;
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cell.style.width = "" ;
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}
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}
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var colElements = table.getElementsByTagName( "col" ) ;
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for ( var i = colElements.length - 1 ; i >= 0 ; i-- )
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colElements[i].parentNode.removeChild( colElements[i] ) ;
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// Set new cell widths.
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var processedCells = [] ;
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for ( var i = 0 ; i < tableMap.length ; i++ )
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{
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for ( var j = 0 ; j < tableMap[i].length ; j++ )
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{
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var cell = tableMap[i][j] ;
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if ( cell._Processed )
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continue ;
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if ( tableMap[i][j-1] != cell )
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cell.width = colArray[j].width ;
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else
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cell.width = parseInt( cell.width, 10 ) + parseInt( colArray[j].width, 10 ) ;
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if ( tableMap[i][j+1] != cell )
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{
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processedCells.push( cell ) ;
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cell._Processed = true ;
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}
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}
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}
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for ( var i = 0 ; i < processedCells.length ; i++ )
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{
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if ( FCKBrowserInfo.IsIE )
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processedCells[i].removeAttribute( '_Processed' ) ;
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else
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delete processedCells[i]._Processed ;
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}
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FCKDragTableHandler._LastX = null ;
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},
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"_ResizeBarMouseMoveListener" : function( evt )
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{
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if ( ! evt )
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evt = window.event ;
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if ( FCKDragTableHandler._MouseMoveMode == 0 )
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return FCKDragTableHandler._MouseFindHandler( FCK, evt ) ;
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else
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return FCKDragTableHandler._MouseDragHandler( FCK, evt ) ;
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},
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// Calculate the padding of a table cell.
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// It returns the value of paddingLeft + paddingRight of a table cell.
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// This function is used, in part, to calculate the width parameter that should be used for setting cell widths.
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// The equation in question is clientWidth = paddingLeft + paddingRight + width.
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// So that width = clientWidth - paddingLeft - paddingRight.
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// The return value of this function must be pixel accurate acorss all supported browsers, so be careful if you need to modify it.
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"_GetCellPadding" : function( table, cell )
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{
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var attrGuess = parseInt( table.cellPadding, 10 ) * 2 ;
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var cssGuess = null ;
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if ( typeof( window.getComputedStyle ) == "function" )
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{
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var styleObj = window.getComputedStyle( cell, null ) ;
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cssGuess = parseInt( styleObj.getPropertyValue( "padding-left" ), 10 ) +
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parseInt( styleObj.getPropertyValue( "padding-right" ), 10 ) ;
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}
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else
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cssGuess = parseInt( cell.currentStyle.paddingLeft, 10 ) + parseInt (cell.currentStyle.paddingRight, 10 ) ;
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var cssRuntime = cell.style.padding ;
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if ( isFinite( cssRuntime ) )
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cssGuess = parseInt( cssRuntime, 10 ) * 2 ;
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else
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{
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cssRuntime = cell.style.paddingLeft ;
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if ( isFinite( cssRuntime ) )
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cssGuess = parseInt( cssRuntime, 10 ) ;
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cssRuntime = cell.style.paddingRight ;
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if ( isFinite( cssRuntime ) )
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cssGuess += parseInt( cssRuntime, 10 ) ;
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}
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attrGuess = parseInt( attrGuess, 10 ) ;
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cssGuess = parseInt( cssGuess, 10 ) ;
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if ( isNaN( attrGuess ) )
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attrGuess = 0 ;
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if ( isNaN( cssGuess ) )
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cssGuess = 0 ;
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return Math.max( attrGuess, cssGuess ) ;
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},
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// Calculate the real width of the table cell.
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// 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
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// that, the table cell should be of exactly the same width as before.
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// The real width of a table cell can be calculated as:
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// width = clientWidth - paddingLeft - paddingRight.
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"_GetCellWidth" : function( table, cell )
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{
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var clientWidth = cell.clientWidth ;
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if ( isNaN( clientWidth ) )
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clientWidth = 0 ;
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return clientWidth - this._GetCellPadding( table, cell ) ;
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},
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"MouseMoveListener" : function( FCK, evt )
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{
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if ( FCKDragTableHandler._MouseMoveMode == 0 )
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return FCKDragTableHandler._MouseFindHandler( FCK, evt ) ;
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else
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return FCKDragTableHandler._MouseDragHandler( FCK, evt ) ;
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},
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"_MouseFindHandler" : function( FCK, evt )
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{
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if ( FCK.MouseDownFlag )
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return ;
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var node = evt.srcElement || evt.target ;
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try
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{
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if ( ! node || node.nodeType != 1 )
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{
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this._HideResizeBar() ;
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return ;
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}
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}
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catch ( e )
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{
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this._HideResizeBar() ;
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return ;
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}
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// Since this function might be called from the editing area iframe or the outer fckeditor iframe,
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// the mouse point coordinates from evt.clientX/Y can have different reference points.
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// We need to resolve the mouse pointer position relative to the editing area iframe.
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var mouseX = evt.clientX ;
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var mouseY = evt.clientY ;
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if ( node.ownerDocument == document )
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{
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var offset = FCKTools.GetDocumentPosition( window, FCK.EditingArea.IFrame ) ;
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mouseX -= offset.x ;
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mouseY -= offset.y ;
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}
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if ( this._ResizeBar && this._LeftCell )
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{
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var leftPos = FCKTools.GetWindowPosition( FCK.EditorWindow, this._LeftCell ) ;
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var rightPos = FCKTools.GetWindowPosition( FCK.EditorWindow, this._RightCell ) ;
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var rxDist = mouseX - ( leftPos.x + this._LeftCell.clientWidth ) ;
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var lxDist = mouseX - rightPos.x ;
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var inRangeFlag = false ;
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if ( lxDist >= 0 && rxDist <= 0 )
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inRangeFlag = true ;
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else if ( rxDist > 0 && lxDist <= 3 )
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inRangeFlag = true ;
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else if ( lxDist < 0 && rxDist >= -2 )
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inRangeFlag = true ;
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if ( inRangeFlag )
|
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{
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||||
this._ShowResizeBar( FCK.EditorWindow,
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FCKTools.GetElementAscensor( this._LeftCell, "table" ),
|
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{ "x" : mouseX, "y" : mouseY } ) ;
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||||
return ;
|
||||
}
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||||
}
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||||
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||||
var tagName = node.tagName.toLowerCase() ;
|
||||
if ( tagName != "table" && tagName != "td" && tagName != "th" )
|
||||
{
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||||
if ( this._LeftCell )
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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 ( node.ownerDocument == FCK.EditorDocument )
|
||||
{
|
||||
var offset = FCKTools.GetDocumentPosition( window, FCK.EditingArea.IFrame ) ;
|
||||
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 = document.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 ) ;
|
||||
document.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 = document.createElement( "img" ) ;
|
||||
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 )
|
||||
evt = window.event ;
|
||||
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 = FCKTools.GetDocumentPosition( window, FCK.EditingArea.IFrame ) ;
|
||||
var tablePos = FCKTools.GetWindowPosition( 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 = document.createElement( "div" ) ;
|
||||
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'
|
||||
} ) ;
|
||||
}
|
||||
};
|
||||
|
||||
FCK.Events.AttachEvent( "OnMouseMove", FCKDragTableHandler.MouseMoveListener ) ;
|
||||
Loading…
Add table
Add a link
Reference in a new issue