_source/plugins/resize/plugin.js

   1 /*\r
   2 Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.\r
   3 For licensing, see LICENSE.html or http://ckeditor.com/license\r
   4 */\r
   5 \r
   6 CKEDITOR.plugins.add( 'resize',\r
   7 {\r
   8         init : function( editor )\r
   9         {\r
  10                 var config = editor.config;\r
  11 \r
  12                 !config.resize_dir && ( config.resize_dir = 'both' );\r
  13                 ( config.resize_maxWidth == undefined ) && ( config.resize_maxWidth = 3000 );\r
  14                 ( config.resize_maxHeight == undefined ) && ( config.resize_maxHeight = 3000 );\r
  15                 ( config.resize_minWidth == undefined ) && ( config.resize_minWidth = 750 );\r
  16                 ( config.resize_minHeight == undefined ) && ( config.resize_minHeight = 250 );\r
  17 \r
  18                 if ( config.resize_enabled !== false )\r
  19                 {\r
  20                         var container = null,\r
  21                                 origin,\r
  22                                 startSize,\r
  23                                 resizeHorizontal = ( config.resize_dir == 'both' || config.resize_dir == 'horizontal' ) &&\r
  24                                         ( config.resize_minWidth != config.resize_maxWidth ),\r
  25                                 resizeVertical = ( config.resize_dir == 'both' || config.resize_dir == 'vertical' ) &&\r
  26                                         ( config.resize_minHeight != config.resize_maxHeight );\r
  27 \r
  28                         function dragHandler( evt )\r
  29                         {\r
  30                                 var dx = evt.data.$.screenX - origin.x,\r
  31                                         dy = evt.data.$.screenY - origin.y,\r
  32                                         width = startSize.width,\r
  33                                         height = startSize.height,\r
  34                                         internalWidth = width + dx * ( editor.lang.dir == 'rtl' ? -1 : 1 ),\r
  35                                         internalHeight = height + dy;\r
  36 \r
  37                                 if ( resizeHorizontal )\r
  38                                         width =  Math.max( config.resize_minWidth, Math.min( internalWidth, config.resize_maxWidth ) );\r
  39 \r
  40                                 if ( resizeVertical )\r
  41                                         height =  Math.max( config.resize_minHeight, Math.min( internalHeight, config.resize_maxHeight ) );\r
  42 \r
  43                                 editor.resize( width, height );\r
  44                         }\r
  45 \r
  46                         function dragEndHandler ( evt )\r
  47                         {\r
  48                                 CKEDITOR.document.removeListener( 'mousemove', dragHandler );\r
  49                                 CKEDITOR.document.removeListener( 'mouseup', dragEndHandler );\r
  50 \r
  51                                 if ( editor.document )\r
  52                                 {\r
  53                                         editor.document.removeListener( 'mousemove', dragHandler );\r
  54                                         editor.document.removeListener( 'mouseup', dragEndHandler );\r
  55                                 }\r
  56                         }\r
  57 \r
  58                         var mouseDownFn = CKEDITOR.tools.addFunction( function( $event )\r
  59                                 {\r
  60                                         if ( !container )\r
  61                                                 container = editor.getResizable();\r
  62 \r
  63                                         startSize = { width : container.$.offsetWidth || 0, height : container.$.offsetHeight || 0 };\r
  64                                         origin = { x : $event.screenX, y : $event.screenY };\r
  65 \r
  66                                         config.resize_minWidth > startSize.width && ( config.resize_minWidth = startSize.width );\r
  67                                         config.resize_minHeight > startSize.height && ( config.resize_minHeight = startSize.height );\r
  68 \r
  69                                         CKEDITOR.document.on( 'mousemove', dragHandler );\r
  70                                         CKEDITOR.document.on( 'mouseup', dragEndHandler );\r
  71 \r
  72                                         if ( editor.document )\r
  73                                         {\r
  74                                                 editor.document.on( 'mousemove', dragHandler );\r
  75                                                 editor.document.on( 'mouseup', dragEndHandler );\r
  76                                         }\r
  77                                 });\r
  78 \r
  79                         editor.on( 'destroy', function() { CKEDITOR.tools.removeFunction( mouseDownFn ); } );\r
  80 \r
  81                         editor.on( 'themeSpace', function( event )\r
  82                                 {\r
  83                                         if ( event.data.space == 'bottom' )\r
  84                                         {\r
  85                                                 var direction = '';\r
  86                                                 if ( resizeHorizontal && !resizeVertical)\r
  87                                                         direction = ' cke_resizer_horizontal';\r
  88                                                 if ( !resizeHorizontal && resizeVertical)\r
  89                                                         direction = ' cke_resizer_vertical';\r
  90 \r
  91                                                 event.data.html += '<div class="cke_resizer' + direction + '"' +\r
  92                                                         ' title="' + CKEDITOR.tools.htmlEncode( editor.lang.resize ) + '"' +\r
  93                                                         ' onmousedown="CKEDITOR.tools.callFunction(' + mouseDownFn + ', event)"' +\r
  94                                                         '></div>';\r
  95                                         }\r
  96                                 }, editor, null, 100 );\r
  97                 }\r
  98         }\r
  99 } );\r
 100 \r
 101 /**\r
 102  * The minimum editor width, in pixels, when resizing it with the resize handle.\r
 103  * Note: It fallbacks to editor's actual width if that's smaller than the default value.\r
 104  * @name CKEDITOR.config.resize_minWidth\r
 105  * @type Number\r
 106  * @default 750\r
 107  * @example\r
 108  * config.resize_minWidth = 500;\r
 109  */\r
 110 \r
 111 /**\r
 112  * The minimum editor height, in pixels, when resizing it with the resize handle.\r
 113  * Note: It fallbacks to editor's actual height if that's smaller than the default value.\r
 114  * @name CKEDITOR.config.resize_minHeight\r
 115  * @type Number\r
 116  * @default 250\r
 117  * @example\r
 118  * config.resize_minHeight = 600;\r
 119  */\r
 120 \r
 121 /**\r
 122  * The maximum editor width, in pixels, when resizing it with the resize handle.\r
 123  * @name CKEDITOR.config.resize_maxWidth\r
 124  * @type Number\r
 125  * @default 3000\r
 126  * @example\r
 127  * config.resize_maxWidth = 750;\r
 128  */\r
 129 \r
 130 /**\r
 131  * The maximum editor height, in pixels, when resizing it with the resize handle.\r
 132  * @name CKEDITOR.config.resize_maxHeight\r
 133  * @type Number\r
 134  * @default 3000\r
 135  * @example\r
 136  * config.resize_maxHeight = 600;\r
 137  */\r
 138 \r
 139 /**\r
 140  * Whether to enable the resizing feature. If disabled the resize handler will not be visible.\r
 141  * @name CKEDITOR.config.resize_enabled\r
 142  * @type Boolean\r
 143  * @default true\r
 144  * @example\r
 145  * config.resize_enabled = false;\r
 146  */\r
 147 \r
 148 /**\r
 149  * The directions to which the editor resizing is enabled. Possible values\r
 150  * are "both", "vertical" and "horizontal".\r
 151  * @name CKEDITOR.config.resize_dir\r
 152  * @type String\r
 153  * @default 'both'\r
 154  * @since 3.3\r
 155  * @example\r
 156  * config.resize_dir = 'vertical';\r
 157  */\r