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/* |
* FCKeditor - The text editor for internet |
* Copyright (C) 2003-2006 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/ |
* |
* "Support Open Source software. What about a donation today?" |
* |
* File Name: fcktablehandler.js |
* Manage table operations. |
* |
* File Authors: |
* Frederico Caldeira Knabben (fredck@fckeditor.net) |
*/ |
|
var FCKTableHandler = new Object() ; |
|
FCKTableHandler.InsertRow = function() |
{ |
// Get the row where the selection is placed in. |
var oRow = FCKSelection.MoveToAncestorNode("TR") ; |
if ( !oRow ) return ; |
|
// Create a clone of the row. |
var oNewRow = oRow.cloneNode( true ) ; |
|
// Insert the new row (copy) before of it. |
oRow.parentNode.insertBefore( oNewRow, oRow ) ; |
|
// Clean the row (it seems that the new row has been added after it). |
FCKTableHandler.ClearRow( oRow ) ; |
} |
|
FCKTableHandler.DeleteRows = function( row ) |
{ |
// If no row has been passed as a parameer, |
// then get the row where the selection is placed in. |
if ( !row ) |
row = FCKSelection.MoveToAncestorNode("TR") ; |
if ( !row ) return ; |
|
// Get the row's table. |
var oTable = FCKTools.GetElementAscensor( row, 'TABLE' ) ; |
|
// If just one row is available then delete the entire table. |
if ( oTable.rows.length == 1 ) |
{ |
FCKTableHandler.DeleteTable( oTable ) ; |
return ; |
} |
|
// Delete the row. |
row.parentNode.removeChild( row ) ; |
} |
|
FCKTableHandler.DeleteTable = function( table ) |
{ |
// If no table has been passed as a parameer, |
// then get the table where the selection is placed in. |
if ( !table ) |
{ |
var table = FCKSelection.GetSelectedElement() ; |
if ( !table || table.tagName != 'TABLE' ) |
table = FCKSelection.MoveToAncestorNode("TABLE") ; |
} |
if ( !table ) return ; |
|
// Delete the table. |
FCKSelection.SelectNode( table ) ; |
FCKSelection.Collapse(); |
table.parentNode.removeChild( table ) ; |
} |
|
FCKTableHandler.InsertColumn = function() |
{ |
// Get the cell where the selection is placed in. |
var oCell = FCKSelection.MoveToAncestorNode("TD") ; |
if ( !oCell ) |
oCell = FCKSelection.MoveToAncestorNode("TH") ; |
|
if ( !oCell ) return ; |
|
// Get the cell's table. |
var oTable = FCKTools.GetElementAscensor( oCell, 'TABLE' ) ; |
|
// Get the index of the column to be created (based on the cell). |
var iIndex = oCell.cellIndex + 1 ; |
|
// Loop throw all rows available in the table. |
for ( var i = 0 ; i < oTable.rows.length ; i++ ) |
{ |
// Get the row. |
var oRow = oTable.rows[i] ; |
|
// If the row doens't have enought cells, ignore it. |
if ( oRow.cells.length < iIndex ) |
continue ; |
|
oCell = oRow.cells[iIndex-1].cloneNode(false) ; |
|
if ( FCKBrowserInfo.IsGecko ) |
oCell.innerHTML = GECKO_BOGUS ; |
|
// Get the cell that is placed in the new cell place. |
var oBaseCell = oRow.cells[iIndex] ; |
|
// If the cell is available (we are not in the last cell of the row). |
if ( oBaseCell ) |
oRow.insertBefore( oCell, oBaseCell ) ; // Insert the new cell just before of it. |
else |
oRow.appendChild( oCell ) ; // Append the cell at the end of the row. |
} |
} |
|
FCKTableHandler.DeleteColumns = function() |
{ |
// Get the cell where the selection is placed in. |
var oCell = FCKSelection.MoveToAncestorNode('TD') || FCKSelection.MoveToAncestorNode('TH') ; |
|
if ( !oCell ) return ; |
|
// Get the cell's table. |
var oTable = FCKTools.GetElementAscensor( oCell, 'TABLE' ) ; |
|
// Get the cell index. |
var iIndex = oCell.cellIndex ; |
|
// Loop throw all rows (from down to up, because it's possible that some |
// rows will be deleted). |
for ( var i = oTable.rows.length - 1 ; i >= 0 ; i-- ) |
{ |
// Get the row. |
var oRow = oTable.rows[i] ; |
|
// If the cell to be removed is the first one and the row has just one cell. |
if ( iIndex == 0 && oRow.cells.length == 1 ) |
{ |
// Remove the entire row. |
FCKTableHandler.DeleteRows( oRow ) ; |
continue ; |
} |
|
// If the cell to be removed exists the delete it. |
if ( oRow.cells[iIndex] ) |
oRow.removeChild( oRow.cells[iIndex] ) ; |
} |
} |
|
FCKTableHandler.InsertCell = function( cell ) |
{ |
// Get the cell where the selection is placed in. |
var oCell = cell ? cell : FCKSelection.MoveToAncestorNode("TD") ; |
if ( !oCell ) return ; |
|
// Create the new cell element to be added. |
var oNewCell = FCK.EditorDocument.createElement("TD"); |
if ( FCKBrowserInfo.IsGecko ) |
oNewCell.innerHTML = GECKO_BOGUS ; |
// oNewCell.innerHTML = " " ; |
|
// If it is the last cell in the row. |
if ( oCell.cellIndex == oCell.parentNode.cells.length - 1 ) |
{ |
// Add the new cell at the end of the row. |
oCell.parentNode.appendChild( oNewCell ) ; |
} |
else |
{ |
// Add the new cell before the next cell (after the active one). |
oCell.parentNode.insertBefore( oNewCell, oCell.nextSibling ) ; |
} |
|
return oNewCell ; |
} |
|
FCKTableHandler.DeleteCell = function( cell ) |
{ |
// If this is the last cell in the row. |
if ( cell.parentNode.cells.length == 1 ) |
{ |
// Delete the entire row. |
FCKTableHandler.DeleteRows( FCKTools.GetElementAscensor( cell, 'TR' ) ) ; |
return ; |
} |
|
// Delete the cell from the row. |
cell.parentNode.removeChild( cell ) ; |
} |
|
FCKTableHandler.DeleteCells = function() |
{ |
var aCells = FCKTableHandler.GetSelectedCells() ; |
|
for ( var i = aCells.length - 1 ; i >= 0 ; i-- ) |
{ |
FCKTableHandler.DeleteCell( aCells[i] ) ; |
} |
} |
|
FCKTableHandler.MergeCells = function() |
{ |
// Get all selected cells. |
var aCells = FCKTableHandler.GetSelectedCells() ; |
|
// At least 2 cells must be selected. |
if ( aCells.length < 2 ) |
return ; |
|
// The merge can occour only if the selected cells are from the same row. |
if ( aCells[0].parentNode != aCells[aCells.length-1].parentNode ) |
return ; |
|
// Calculate the new colSpan for the first cell. |
var iColSpan = isNaN( aCells[0].colSpan ) ? 1 : aCells[0].colSpan ; |
|
var sHtml = '' ; |
var oCellsContents = FCK.EditorDocument.createDocumentFragment() ; |
|
for ( var i = aCells.length - 1 ; i >= 0 ; i-- ) |
{ |
var eCell = aCells[i] ; |
|
// Move its contents to the document fragment. |
for ( var c = eCell.childNodes.length - 1 ; c >= 0 ; c-- ) |
{ |
var eChild = eCell.removeChild( eCell.childNodes[c] ) ; |
|
if ( ( eChild.hasAttribute && eChild.hasAttribute('_moz_editor_bogus_node') ) || ( eChild.getAttribute && eChild.getAttribute( 'type', 2 ) == '_moz' ) ) |
continue ; |
|
oCellsContents.insertBefore( eChild, oCellsContents.firstChild ) ; |
} |
|
if ( i > 0 ) |
{ |
// Accumulate the colspan of the cell. |
iColSpan += isNaN( eCell.colSpan ) ? 1 : eCell.colSpan ; |
|
// Delete the cell. |
FCKTableHandler.DeleteCell( eCell ) ; |
} |
} |
|
// Set the innerHTML of the remaining cell (the first one). |
aCells[0].colSpan = iColSpan ; |
|
if ( FCKBrowserInfo.IsGecko && oCellsContents.childNodes.length == 0 ) |
aCells[0].innerHTML = GECKO_BOGUS ; |
else |
aCells[0].appendChild( oCellsContents ) ; |
} |
|
FCKTableHandler.SplitCell = function() |
{ |
// Check that just one cell is selected, otherwise return. |
var aCells = FCKTableHandler.GetSelectedCells() ; |
if ( aCells.length != 1 ) |
return ; |
|
var aMap = this._CreateTableMap( aCells[0].parentNode.parentNode ) ; |
var iCellIndex = FCKTableHandler._GetCellIndexSpan( aMap, aCells[0].parentNode.rowIndex , aCells[0] ) ; |
|
var aCollCells = this._GetCollumnCells( aMap, iCellIndex ) ; |
|
for ( var i = 0 ; i < aCollCells.length ; i++ ) |
{ |
if ( aCollCells[i] == aCells[0] ) |
{ |
var oNewCell = this.InsertCell( aCells[0] ) ; |
if ( !isNaN( aCells[0].rowSpan ) && aCells[0].rowSpan > 1 ) |
oNewCell.rowSpan = aCells[0].rowSpan ; |
} |
else |
{ |
if ( isNaN( aCollCells[i].colSpan ) ) |
aCollCells[i].colSpan = 2 ; |
else |
aCollCells[i].colSpan += 1 ; |
} |
} |
} |
|
// Get the cell index from a TableMap. |
FCKTableHandler._GetCellIndexSpan = function( tableMap, rowIndex, cell ) |
{ |
if ( tableMap.length < rowIndex + 1 ) |
return null ; |
|
var oRow = tableMap[ rowIndex ] ; |
|
for ( var c = 0 ; c < oRow.length ; c++ ) |
{ |
if ( oRow[c] == cell ) |
return c ; |
} |
|
return null ; |
} |
|
// Get the cells available in a collumn of a TableMap. |
FCKTableHandler._GetCollumnCells = function( tableMap, collumnIndex ) |
{ |
var aCollCells = new Array() ; |
|
for ( var r = 0 ; r < tableMap.length ; r++ ) |
{ |
var oCell = tableMap[r][collumnIndex] ; |
if ( oCell && ( aCollCells.length == 0 || aCollCells[ aCollCells.length - 1 ] != oCell ) ) |
aCollCells[ aCollCells.length ] = oCell ; |
} |
|
return aCollCells ; |
} |
|
// This function is quite hard to explain. It creates a matrix representing all cells in a table. |
// The difference here is that the "spanned" cells (colSpan and rowSpan) are duplicated on the matrix |
// cells that are "spanned". For example, a row with 3 cells where the second cell has colSpan=2 and rowSpan=3 |
// will produce a bi-dimensional matrix with the following values (representing the cells): |
// Cell1, Cell2, Cell2, Cell 3 |
// Cell4, Cell2, Cell2, Cell 5 |
FCKTableHandler._CreateTableMap = function( table ) |
{ |
var aRows = table.rows ; |
|
// Row and Collumn counters. |
var r = -1 ; |
|
var aMap = new Array() ; |
|
for ( var i = 0 ; i < aRows.length ; i++ ) |
{ |
r++ ; |
if ( !aMap[r] ) |
aMap[r] = new Array() ; |
|
var c = -1 ; |
|
for ( var j = 0 ; j < aRows[i].cells.length ; j++ ) |
{ |
var oCell = aRows[i].cells[j] ; |
|
c++ ; |
while ( aMap[r][c] ) |
c++ ; |
|
var iColSpan = isNaN( oCell.colSpan ) ? 1 : oCell.colSpan ; |
var iRowSpan = isNaN( oCell.rowSpan ) ? 1 : oCell.rowSpan ; |
|
for ( var rs = 0 ; rs < iRowSpan ; rs++ ) |
{ |
if ( !aMap[r + rs] ) |
aMap[r + rs] = new Array() ; |
|
for ( var cs = 0 ; cs < iColSpan ; cs++ ) |
{ |
aMap[r + rs][c + cs] = aRows[i].cells[j] ; |
} |
} |
|
c += iColSpan - 1 ; |
} |
} |
return aMap ; |
} |
|
FCKTableHandler.ClearRow = function( tr ) |
{ |
// Get the array of row's cells. |
var aCells = tr.cells ; |
|
// Replace the contents of each cell with "nothing". |
for ( var i = 0 ; i < aCells.length ; i++ ) |
{ |
if ( FCKBrowserInfo.IsGecko ) |
aCells[i].innerHTML = GECKO_BOGUS ; |
else |
aCells[i].innerHTML = '' ; |
} |
} |