[44] | 1 | /*
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| 2 | * FCKeditor - The text editor for internet
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| 3 | * Copyright (C) 2003-2006 Frederico Caldeira Knabben
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| 4 | *
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| 5 | * Licensed under the terms of the GNU Lesser General Public License:
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| 6 | * http://www.opensource.org/licenses/lgpl-license.php
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| 7 | *
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| 8 | * For further information visit:
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| 9 | * http://www.fckeditor.net/
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| 10 | *
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| 11 | * "Support Open Source software. What about a donation today?"
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| 12 | *
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| 13 | * File Name: fcktablehandler.js
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| 14 | * Manage table operations.
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| 15 | *
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| 16 | * File Authors:
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| 17 | * Frederico Caldeira Knabben (fredck@fckeditor.net)
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| 18 | */
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| 19 |
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| 20 | var FCKTableHandler = new Object() ;
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| 21 |
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| 22 | FCKTableHandler.InsertRow = function()
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| 23 | {
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| 24 | // Get the row where the selection is placed in.
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| 25 | var oRow = FCKSelection.MoveToAncestorNode("TR") ;
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| 26 | if ( !oRow ) return ;
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| 27 |
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| 28 | // Create a clone of the row.
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| 29 | var oNewRow = oRow.cloneNode( true ) ;
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| 30 |
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| 31 | // Insert the new row (copy) before of it.
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| 32 | oRow.parentNode.insertBefore( oNewRow, oRow ) ;
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| 33 |
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| 34 | // Clean the row (it seems that the new row has been added after it).
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| 35 | FCKTableHandler.ClearRow( oRow ) ;
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| 36 | }
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| 37 |
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| 38 | FCKTableHandler.DeleteRows = function( row )
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| 39 | {
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| 40 | // If no row has been passed as a parameer,
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| 41 | // then get the row where the selection is placed in.
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| 42 | if ( !row )
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| 43 | row = FCKSelection.MoveToAncestorNode("TR") ;
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| 44 | if ( !row ) return ;
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| 45 |
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| 46 | // Get the row's table.
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| 47 | var oTable = FCKTools.GetElementAscensor( row, 'TABLE' ) ;
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| 48 |
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| 49 | // If just one row is available then delete the entire table.
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| 50 | if ( oTable.rows.length == 1 )
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| 51 | {
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| 52 | FCKTableHandler.DeleteTable( oTable ) ;
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| 53 | return ;
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| 54 | }
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| 55 |
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| 56 | // Delete the row.
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| 57 | row.parentNode.removeChild( row ) ;
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| 58 | }
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| 59 |
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| 60 | FCKTableHandler.DeleteTable = function( table )
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| 61 | {
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| 62 | // If no table has been passed as a parameer,
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| 63 | // then get the table where the selection is placed in.
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| 64 | if ( !table )
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| 65 | {
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| 66 | var table = FCKSelection.GetSelectedElement() ;
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| 67 | if ( !table || table.tagName != 'TABLE' )
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| 68 | table = FCKSelection.MoveToAncestorNode("TABLE") ;
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| 69 | }
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| 70 | if ( !table ) return ;
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| 71 |
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| 72 | // Delete the table.
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| 73 | FCKSelection.SelectNode( table ) ;
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| 74 | FCKSelection.Collapse();
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| 75 | table.parentNode.removeChild( table ) ;
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| 76 | }
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| 77 |
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| 78 | FCKTableHandler.InsertColumn = function()
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| 79 | {
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| 80 | // Get the cell where the selection is placed in.
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| 81 | var oCell = FCKSelection.MoveToAncestorNode("TD") ;
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| 82 | if ( !oCell )
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| 83 | oCell = FCKSelection.MoveToAncestorNode("TH") ;
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| 84 |
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| 85 | if ( !oCell ) return ;
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| 86 |
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| 87 | // Get the cell's table.
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| 88 | var oTable = FCKTools.GetElementAscensor( oCell, 'TABLE' ) ;
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| 89 |
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| 90 | // Get the index of the column to be created (based on the cell).
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| 91 | var iIndex = oCell.cellIndex + 1 ;
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| 92 |
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| 93 | // Loop throw all rows available in the table.
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| 94 | for ( var i = 0 ; i < oTable.rows.length ; i++ )
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| 95 | {
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| 96 | // Get the row.
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| 97 | var oRow = oTable.rows[i] ;
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| 98 |
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| 99 | // If the row doens't have enought cells, ignore it.
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| 100 | if ( oRow.cells.length < iIndex )
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| 101 | continue ;
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| 102 |
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| 103 | oCell = oRow.cells[iIndex-1].cloneNode(false) ;
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| 104 |
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| 105 | if ( FCKBrowserInfo.IsGecko )
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| 106 | oCell.innerHTML = GECKO_BOGUS ;
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| 107 |
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| 108 | // Get the cell that is placed in the new cell place.
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| 109 | var oBaseCell = oRow.cells[iIndex] ;
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| 110 |
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| 111 | // If the cell is available (we are not in the last cell of the row).
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| 112 | if ( oBaseCell )
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| 113 | oRow.insertBefore( oCell, oBaseCell ) ; // Insert the new cell just before of it.
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| 114 | else
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| 115 | oRow.appendChild( oCell ) ; // Append the cell at the end of the row.
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| 116 | }
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| 117 | }
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| 118 |
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| 119 | FCKTableHandler.DeleteColumns = function()
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| 120 | {
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| 121 | // Get the cell where the selection is placed in.
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| 122 | var oCell = FCKSelection.MoveToAncestorNode('TD') || FCKSelection.MoveToAncestorNode('TH') ;
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| 123 |
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| 124 | if ( !oCell ) return ;
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| 125 |
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| 126 | // Get the cell's table.
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| 127 | var oTable = FCKTools.GetElementAscensor( oCell, 'TABLE' ) ;
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| 128 |
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| 129 | // Get the cell index.
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| 130 | var iIndex = oCell.cellIndex ;
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| 131 |
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| 132 | // Loop throw all rows (from down to up, because it's possible that some
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| 133 | // rows will be deleted).
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| 134 | for ( var i = oTable.rows.length - 1 ; i >= 0 ; i-- )
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| 135 | {
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| 136 | // Get the row.
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| 137 | var oRow = oTable.rows[i] ;
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| 138 |
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| 139 | // If the cell to be removed is the first one and the row has just one cell.
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| 140 | if ( iIndex == 0 && oRow.cells.length == 1 )
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| 141 | {
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| 142 | // Remove the entire row.
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| 143 | FCKTableHandler.DeleteRows( oRow ) ;
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| 144 | continue ;
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| 145 | }
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| 146 |
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| 147 | // If the cell to be removed exists the delete it.
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| 148 | if ( oRow.cells[iIndex] )
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| 149 | oRow.removeChild( oRow.cells[iIndex] ) ;
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| 150 | }
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| 151 | }
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| 152 |
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| 153 | FCKTableHandler.InsertCell = function( cell )
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| 154 | {
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| 155 | // Get the cell where the selection is placed in.
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| 156 | var oCell = cell ? cell : FCKSelection.MoveToAncestorNode("TD") ;
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| 157 | if ( !oCell ) return ;
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| 158 |
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| 159 | // Create the new cell element to be added.
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| 160 | var oNewCell = FCK.EditorDocument.createElement("TD");
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| 161 | if ( FCKBrowserInfo.IsGecko )
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| 162 | oNewCell.innerHTML = GECKO_BOGUS ;
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| 163 | // oNewCell.innerHTML = " " ;
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| 164 |
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| 165 | // If it is the last cell in the row.
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| 166 | if ( oCell.cellIndex == oCell.parentNode.cells.length - 1 )
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| 167 | {
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| 168 | // Add the new cell at the end of the row.
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| 169 | oCell.parentNode.appendChild( oNewCell ) ;
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| 170 | }
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| 171 | else
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| 172 | {
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| 173 | // Add the new cell before the next cell (after the active one).
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| 174 | oCell.parentNode.insertBefore( oNewCell, oCell.nextSibling ) ;
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| 175 | }
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| 176 |
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| 177 | return oNewCell ;
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| 178 | }
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| 179 |
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| 180 | FCKTableHandler.DeleteCell = function( cell )
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| 181 | {
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| 182 | // If this is the last cell in the row.
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| 183 | if ( cell.parentNode.cells.length == 1 )
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| 184 | {
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| 185 | // Delete the entire row.
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| 186 | FCKTableHandler.DeleteRows( FCKTools.GetElementAscensor( cell, 'TR' ) ) ;
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| 187 | return ;
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| 188 | }
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| 189 |
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| 190 | // Delete the cell from the row.
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| 191 | cell.parentNode.removeChild( cell ) ;
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| 192 | }
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| 193 |
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| 194 | FCKTableHandler.DeleteCells = function()
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| 195 | {
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| 196 | var aCells = FCKTableHandler.GetSelectedCells() ;
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| 197 |
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| 198 | for ( var i = aCells.length - 1 ; i >= 0 ; i-- )
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| 199 | {
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| 200 | FCKTableHandler.DeleteCell( aCells[i] ) ;
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| 201 | }
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| 202 | }
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| 203 |
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| 204 | FCKTableHandler.MergeCells = function()
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| 205 | {
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| 206 | // Get all selected cells.
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| 207 | var aCells = FCKTableHandler.GetSelectedCells() ;
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| 208 |
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| 209 | // At least 2 cells must be selected.
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| 210 | if ( aCells.length < 2 )
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| 211 | return ;
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| 212 |
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| 213 | // The merge can occour only if the selected cells are from the same row.
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| 214 | if ( aCells[0].parentNode != aCells[aCells.length-1].parentNode )
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| 215 | return ;
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| 216 |
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| 217 | // Calculate the new colSpan for the first cell.
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| 218 | var iColSpan = isNaN( aCells[0].colSpan ) ? 1 : aCells[0].colSpan ;
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| 219 |
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| 220 | var sHtml = '' ;
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| 221 | var oCellsContents = FCK.EditorDocument.createDocumentFragment() ;
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| 222 |
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| 223 | for ( var i = aCells.length - 1 ; i >= 0 ; i-- )
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| 224 | {
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| 225 | var eCell = aCells[i] ;
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| 226 |
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| 227 | // Move its contents to the document fragment.
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| 228 | for ( var c = eCell.childNodes.length - 1 ; c >= 0 ; c-- )
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| 229 | {
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| 230 | var eChild = eCell.removeChild( eCell.childNodes[c] ) ;
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| 231 |
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| 232 | if ( ( eChild.hasAttribute && eChild.hasAttribute('_moz_editor_bogus_node') ) || ( eChild.getAttribute && eChild.getAttribute( 'type', 2 ) == '_moz' ) )
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| 233 | continue ;
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| 234 |
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| 235 | oCellsContents.insertBefore( eChild, oCellsContents.firstChild ) ;
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| 236 | }
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| 237 |
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| 238 | if ( i > 0 )
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| 239 | {
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| 240 | // Accumulate the colspan of the cell.
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| 241 | iColSpan += isNaN( eCell.colSpan ) ? 1 : eCell.colSpan ;
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| 242 |
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| 243 | // Delete the cell.
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| 244 | FCKTableHandler.DeleteCell( eCell ) ;
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| 245 | }
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| 246 | }
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| 247 |
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| 248 | // Set the innerHTML of the remaining cell (the first one).
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| 249 | aCells[0].colSpan = iColSpan ;
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| 250 |
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| 251 | if ( FCKBrowserInfo.IsGecko && oCellsContents.childNodes.length == 0 )
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| 252 | aCells[0].innerHTML = GECKO_BOGUS ;
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| 253 | else
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| 254 | aCells[0].appendChild( oCellsContents ) ;
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| 255 | }
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| 256 |
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| 257 | FCKTableHandler.SplitCell = function()
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| 258 | {
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| 259 | // Check that just one cell is selected, otherwise return.
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| 260 | var aCells = FCKTableHandler.GetSelectedCells() ;
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| 261 | if ( aCells.length != 1 )
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| 262 | return ;
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| 263 |
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| 264 | var aMap = this._CreateTableMap( aCells[0].parentNode.parentNode ) ;
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| 265 | var iCellIndex = FCKTableHandler._GetCellIndexSpan( aMap, aCells[0].parentNode.rowIndex , aCells[0] ) ;
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| 266 |
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| 267 | var aCollCells = this._GetCollumnCells( aMap, iCellIndex ) ;
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| 268 |
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| 269 | for ( var i = 0 ; i < aCollCells.length ; i++ )
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| 270 | {
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| 271 | if ( aCollCells[i] == aCells[0] )
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| 272 | {
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| 273 | var oNewCell = this.InsertCell( aCells[0] ) ;
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| 274 | if ( !isNaN( aCells[0].rowSpan ) && aCells[0].rowSpan > 1 )
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| 275 | oNewCell.rowSpan = aCells[0].rowSpan ;
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| 276 | }
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| 277 | else
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| 278 | {
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| 279 | if ( isNaN( aCollCells[i].colSpan ) )
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| 280 | aCollCells[i].colSpan = 2 ;
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| 281 | else
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| 282 | aCollCells[i].colSpan += 1 ;
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| 283 | }
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| 284 | }
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| 285 | }
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| 286 |
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| 287 | // Get the cell index from a TableMap.
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| 288 | FCKTableHandler._GetCellIndexSpan = function( tableMap, rowIndex, cell )
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| 289 | {
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| 290 | if ( tableMap.length < rowIndex + 1 )
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| 291 | return null ;
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| 292 |
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| 293 | var oRow = tableMap[ rowIndex ] ;
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| 294 |
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| 295 | for ( var c = 0 ; c < oRow.length ; c++ )
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| 296 | {
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| 297 | if ( oRow[c] == cell )
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| 298 | return c ;
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| 299 | }
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| 300 |
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| 301 | return null ;
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| 302 | }
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| 303 |
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| 304 | // Get the cells available in a collumn of a TableMap.
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| 305 | FCKTableHandler._GetCollumnCells = function( tableMap, collumnIndex )
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| 306 | {
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| 307 | var aCollCells = new Array() ;
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| 308 |
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| 309 | for ( var r = 0 ; r < tableMap.length ; r++ )
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| 310 | {
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| 311 | var oCell = tableMap[r][collumnIndex] ;
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| 312 | if ( oCell && ( aCollCells.length == 0 || aCollCells[ aCollCells.length - 1 ] != oCell ) )
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| 313 | aCollCells[ aCollCells.length ] = oCell ;
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| 314 | }
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| 315 |
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| 316 | return aCollCells ;
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| 317 | }
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| 318 |
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| 319 | // This function is quite hard to explain. It creates a matrix representing all cells in a table.
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| 320 | // The difference here is that the "spanned" cells (colSpan and rowSpan) are duplicated on the matrix
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| 321 | // cells that are "spanned". For example, a row with 3 cells where the second cell has colSpan=2 and rowSpan=3
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| 322 | // will produce a bi-dimensional matrix with the following values (representing the cells):
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| 323 | // Cell1, Cell2, Cell2, Cell 3
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| 324 | // Cell4, Cell2, Cell2, Cell 5
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| 325 | FCKTableHandler._CreateTableMap = function( table )
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| 326 | {
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| 327 | var aRows = table.rows ;
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| 328 |
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| 329 | // Row and Collumn counters.
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| 330 | var r = -1 ;
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| 331 |
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| 332 | var aMap = new Array() ;
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| 333 |
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| 334 | for ( var i = 0 ; i < aRows.length ; i++ )
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| 335 | {
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| 336 | r++ ;
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| 337 | if ( !aMap[r] )
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| 338 | aMap[r] = new Array() ;
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| 339 |
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| 340 | var c = -1 ;
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| 341 |
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| 342 | for ( var j = 0 ; j < aRows[i].cells.length ; j++ )
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| 343 | {
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| 344 | var oCell = aRows[i].cells[j] ;
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| 345 |
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| 346 | c++ ;
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| 347 | while ( aMap[r][c] )
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| 348 | c++ ;
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| 349 |
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| 350 | var iColSpan = isNaN( oCell.colSpan ) ? 1 : oCell.colSpan ;
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| 351 | var iRowSpan = isNaN( oCell.rowSpan ) ? 1 : oCell.rowSpan ;
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| 352 |
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| 353 | for ( var rs = 0 ; rs < iRowSpan ; rs++ )
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| 354 | {
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| 355 | if ( !aMap[r + rs] )
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| 356 | aMap[r + rs] = new Array() ;
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| 357 |
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| 358 | for ( var cs = 0 ; cs < iColSpan ; cs++ )
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| 359 | {
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| 360 | aMap[r + rs][c + cs] = aRows[i].cells[j] ;
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| 361 | }
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| 362 | }
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| 363 |
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| 364 | c += iColSpan - 1 ;
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| 365 | }
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| 366 | }
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| 367 | return aMap ;
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| 368 | }
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| 369 |
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| 370 | FCKTableHandler.ClearRow = function( tr )
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| 371 | {
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| 372 | // Get the array of row's cells.
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| 373 | var aCells = tr.cells ;
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| 374 |
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| 375 | // Replace the contents of each cell with "nothing".
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| 376 | for ( var i = 0 ; i < aCells.length ; i++ )
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| 377 | {
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| 378 | if ( FCKBrowserInfo.IsGecko )
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| 379 | aCells[i].innerHTML = GECKO_BOGUS ;
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| 380 | else
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| 381 | aCells[i].innerHTML = '' ;
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| 382 | }
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| 383 | }
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