| | 1 | /* |
| | 2 | Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved. |
| | 3 | For licensing, see LICENSE.html or http://ckeditor.com/license |
| | 4 | */ |
| | 5 | |
| | 6 | ( function() |
| | 7 | { |
| | 8 | var pxUnit = CKEDITOR.tools.cssLength; |
| | 9 | |
| | 10 | function getCellWidth( cell ) |
| | 11 | { |
| | 12 | return CKEDITOR.env.ie ? cell.$.clientWidth : parseInt( cell.getComputedStyle( 'width' ) ); |
| | 13 | } |
| | 14 | |
| | 15 | function getCellBorderWidth( cell, side ) |
| | 16 | { |
| | 17 | var computed = cell.getComputedStyle( 'border-' + side + '-width' ), |
| | 18 | borderMap = |
| | 19 | { |
| | 20 | thin: '2px', |
| | 21 | medium: '4px', |
| | 22 | thick: '6px' |
| | 23 | }; |
| | 24 | |
| | 25 | if ( computed.indexOf( 'px' ) < 0 ) |
| | 26 | { |
| | 27 | // look up keywords |
| | 28 | if ( computed in borderMap && cell.getComputedStyle( 'border-style' ) != 'none' ) |
| | 29 | computed = borderMap[ computed ]; |
| | 30 | else |
| | 31 | computed = 0; |
| | 32 | } |
| | 33 | |
| | 34 | return computed; |
| | 35 | } |
| | 36 | |
| | 37 | function getTableColumnPillarAtPosition( tableElement, position ) |
| | 38 | { |
| | 39 | var table = tableElement.$; |
| | 40 | for ( var i = 0, rowCount = table.rows.length ; i < rowCount; i++ ) |
| | 41 | { |
| | 42 | var tr = table.rows[ i ], |
| | 43 | columnIndex = -1; |
| | 44 | |
| | 45 | for ( var j = 0, colCount = tr.cells.length ; j < colCount ; j++ ) |
| | 46 | { |
| | 47 | var td = new CKEDITOR.dom.element( tr.cells[ j ] ), |
| | 48 | nextTd = tr.cells[ j + 1 ] && new CKEDITOR.dom.element( tr.cells[ j + 1 ] ); |
| | 49 | |
| | 50 | columnIndex += td.$.colSpan || 1; |
| | 51 | var cellPosition = td.getDocumentPosition(), |
| | 52 | rangeLeft = cellPosition.x + td.$.offsetWidth - parseInt( getCellBorderWidth ( td, 'right' ) ); |
| | 53 | |
| | 54 | if ( ( position.x > rangeLeft ) && nextTd ) |
| | 55 | { |
| | 56 | cellPosition = nextTd.getDocumentPosition(); |
| | 57 | var rangeRight = cellPosition.x + parseInt( getCellBorderWidth( nextTd, 'left' ) ); |
| | 58 | |
| | 59 | // Compsensate for too "slim" line between columns, make the pillar shown easier. |
| | 60 | if ( rangeRight - rangeLeft < 8 ) |
| | 61 | rangeLeft-= 4, rangeRight += 4; |
| | 62 | |
| | 63 | if ( position.x < rangeRight ) |
| | 64 | { |
| | 65 | var columnWidth = rangeRight - rangeLeft; |
| | 66 | var tbody = new CKEDITOR.dom.element( table.tBodies[ 0 ] ); |
| | 67 | |
| | 68 | // The pillar should reflects exactly the shape of the hovered column border line. |
| | 69 | return { table : tableElement, index : columnIndex, x : rangeLeft, y : tbody.getDocumentPosition().y, width : columnWidth, height: tbody.$.offsetHeight }; |
| | 70 | } |
| | 71 | } |
| | 72 | } |
| | 73 | } |
| | 74 | } |
| | 75 | |
| | 76 | function ColumnResizer( editor ) |
| | 77 | { |
| | 78 | this.document = editor.document; |
| | 79 | this.resizer = CKEDITOR.dom.element.createFromHtml( '<div style="position: absolute; cursor: col-resize; ' + |
| | 80 | 'filter:alpha(opacity=0);opacity:0;padding:0;background-color:#004;background-image:none;border: 0px none;"></div>' ); |
| | 81 | |
| | 82 | // Place the resizer after body to prevent it from being editable. |
| | 83 | new CKEDITOR.dom.element( editor.document.$.documentElement ).append( this.resizer ); |
| | 84 | } |
| | 85 | |
| | 86 | ColumnResizer.prototype = |
| | 87 | { |
| | 88 | attachTo : function( pillar ) |
| | 89 | { |
| | 90 | // Accept only one pillar at a time. |
| | 91 | if ( this.pillar ) |
| | 92 | return; |
| | 93 | |
| | 94 | this.pillar = pillar; |
| | 95 | this.table = pillar.table; |
| | 96 | this.resizer.setStyles( |
| | 97 | { |
| | 98 | width: pxUnit( pillar.width ), |
| | 99 | height : pxUnit( pillar.height ), |
| | 100 | left : pxUnit( pillar.x ), |
| | 101 | top : pxUnit( pillar.y ) |
| | 102 | }); |
| | 103 | |
| | 104 | this.resizer.on( 'mousedown', this._.onMouseDown, this ); |
| | 105 | this.resizer.on( 'mouseout', this._.onMouseOut, this ); |
| | 106 | |
| | 107 | // Display the resizer to receive events but don't show it, |
| | 108 | // only change the cursor to resizable shape. |
| | 109 | this.resizer.show(); |
| | 110 | }, |
| | 111 | |
| | 112 | detach: function() |
| | 113 | { |
| | 114 | delete this.pillar; |
| | 115 | delete this.currentShift; |
| | 116 | this.document.removeListener( 'mousemove', this._.onMouseMove ); |
| | 117 | this.document.removeListener( 'mouseup', this._.onMouseUp ); |
| | 118 | this.resizer.removeListener( 'mousedown', this._.onMouseDown ); |
| | 119 | this.resizer.removeListener( 'mouseout', this._.onMouseOut ); |
| | 120 | this.resizer.hide(); |
| | 121 | }, |
| | 122 | |
| | 123 | resizeStart : function() |
| | 124 | { |
| | 125 | // Before starting to resize, figure out which cells to change |
| | 126 | // and the boundaries of this resizing shift. |
| | 127 | var columnIndex = this.pillar.index, |
| | 128 | map = CKEDITOR.tools.buildTableMap( this.table ), |
| | 129 | leftColumnCells = [], |
| | 130 | rightColumnCells= [], |
| | 131 | leftMinSize = Number.MAX_VALUE, |
| | 132 | rightMinSize = leftMinSize; |
| | 133 | |
| | 134 | for ( var i = 0, rowCount = map.length; i < rowCount; i++ ) |
| | 135 | { |
| | 136 | var row = map[ i ], |
| | 137 | leftCell = new CKEDITOR.dom.element( row[ columnIndex ] ), |
| | 138 | rightCell = new CKEDITOR.dom.element( row[ columnIndex + 1 ] ); |
| | 139 | |
| | 140 | if ( !leftCell.equals( rightCell ) ) |
| | 141 | { |
| | 142 | leftMinSize = Math.min( leftMinSize, getCellWidth( leftCell ) ); |
| | 143 | rightMinSize = Math.min( rightMinSize, getCellWidth( rightCell ) ); |
| | 144 | leftColumnCells.push( leftCell ); |
| | 145 | rightColumnCells.push( rightCell ); |
| | 146 | } |
| | 147 | } |
| | 148 | |
| | 149 | this.leftSideCells = leftColumnCells; |
| | 150 | this.rightSideCells = rightColumnCells; |
| | 151 | this.leftShiftBoundary = this.pillar.x - leftMinSize; |
| | 152 | this.rightShiftBoundary = this.pillar.x + rightMinSize; |
| | 153 | |
| | 154 | this.resizer.setOpacity( 0.5 ); |
| | 155 | this.startOffset = parseInt( this.resizer.getStyle( 'left' ) ); |
| | 156 | this.document.on( 'mousemove', this._.onMouseMove, this ); |
| | 157 | // Prevent the native drag behavior otherwise the above 'mousemove' won't fired. |
| | 158 | this.document.on( 'dragstart', this._.onDragStart, this ); |
| | 159 | }, |
| | 160 | |
| | 161 | resizeEnd : function() |
| | 162 | { |
| | 163 | this.resizer.setOpacity( 0 ); |
| | 164 | this.resizeColumn(); |
| | 165 | this.detach(); |
| | 166 | }, |
| | 167 | |
| | 168 | resizeColumn : function() |
| | 169 | { |
| | 170 | // Perform the actual resize to table cells, only for those by side of the pillar. |
| | 171 | for ( var i = 0, count = this.leftSideCells.length; i < count; i++ ) |
| | 172 | { |
| | 173 | var leftCell = this.leftSideCells[ i ], |
| | 174 | rightCell = this.rightSideCells[ i ]; |
| | 175 | |
| | 176 | // Defer the resizing to avoid any interference among cells. |
| | 177 | ( function( leftCell, leftOldWidth, rightCell, rightOldWidth, sizeShift ) |
| | 178 | { |
| | 179 | CKEDITOR.tools.setTimeout( function() |
| | 180 | { |
| | 181 | leftCell.setStyle( 'width', pxUnit( leftOldWidth + sizeShift ) ); |
| | 182 | rightCell.setStyle( 'width', pxUnit( rightOldWidth - sizeShift ) ); |
| | 183 | |
| | 184 | }, 0, this ); |
| | 185 | |
| | 186 | }).call( this, leftCell, getCellWidth( leftCell ), |
| | 187 | rightCell, getCellWidth( rightCell ), this.currentShift ); |
| | 188 | } |
| | 189 | }, |
| | 190 | |
| | 191 | _ : |
| | 192 | { |
| | 193 | onMouseMove : function( evt ) |
| | 194 | { |
| | 195 | var mouseOffset = evt.data.$.clientX, |
| | 196 | resizerNewPosition = mouseOffset - parseInt( this.resizer.getComputedStyle( 'width' ) ) / 2; |
| | 197 | |
| | 198 | // Boundaries checking. |
| | 199 | if ( resizerNewPosition > this.leftShiftBoundary |
| | 200 | && resizerNewPosition < this.rightShiftBoundary ) |
| | 201 | { |
| | 202 | this.resizer.setStyle( 'left', pxUnit( resizerNewPosition ) ); |
| | 203 | this.currentShift = resizerNewPosition - this.startOffset; |
| | 204 | } |
| | 205 | }, |
| | 206 | |
| | 207 | onMouseDown : function( evt ) |
| | 208 | { |
| | 209 | evt.data.preventDefault(); |
| | 210 | this.resizeStart(); |
| | 211 | this.document.on( 'mouseup', this._.onMouseUp, this ); |
| | 212 | }, |
| | 213 | |
| | 214 | onMouseUp : function() |
| | 215 | { |
| | 216 | this.resizeEnd(); |
| | 217 | }, |
| | 218 | |
| | 219 | onMouseOut : function() |
| | 220 | { |
| | 221 | // Don't detach during resizing. |
| | 222 | !this.currentShift && this.detach(); |
| | 223 | }, |
| | 224 | |
| | 225 | onDragStart : function( evt ) |
| | 226 | { |
| | 227 | evt.data.preventDefault(); |
| | 228 | } |
| | 229 | } |
| | 230 | }; |
| | 231 | |
| | 232 | CKEDITOR.plugins.add( 'tableresize', |
| | 233 | { |
| | 234 | requires : [ 'table' ], |
| | 235 | init : function( editor ) |
| | 236 | { |
| | 237 | editor.on( 'contentDom', function () |
| | 238 | { |
| | 239 | var columnResizer; |
| | 240 | editor.document.getBody().on( 'mousemove', function( evt ) |
| | 241 | { |
| | 242 | evt = evt.data; |
| | 243 | |
| | 244 | // Considering table, tr, td, tbody but nothing else. |
| | 245 | var target = evt.getTarget(); |
| | 246 | if ( !( target.is( 'table' ) || target.getAscendant( 'tbody', true ) ) ) |
| | 247 | return; |
| | 248 | |
| | 249 | var table = target.getAscendant( 'table', true ); |
| | 250 | var pillar = getTableColumnPillarAtPosition( table, { x : evt.$.clientX, y : evt.$.clientY } ); |
| | 251 | if ( pillar ) |
| | 252 | { |
| | 253 | !columnResizer && ( columnResizer = new ColumnResizer( editor ) ); |
| | 254 | columnResizer.attachTo( pillar ); |
| | 255 | } |
| | 256 | }); |
| | 257 | }); |
| | 258 | } |
| | 259 | }); |
| | 260 | |
| | 261 | } )( ); |
