rt/share/html/NoAuth/RichText/FCKeditor/editor/_source/commandclasses/fckjustifycommands.js

   1 /*\r
   2  * FCKeditor - The text editor for Internet - http://www.fckeditor.net\r
   3  * Copyright (C) 2003-2009 Frederico Caldeira Knabben\r
   4  *\r
   5  * == BEGIN LICENSE ==\r
   6  *\r
   7  * Licensed under the terms of any of the following licenses at your\r
   8  * choice:\r
   9  *\r
  10  *  - GNU General Public License Version 2 or later (the "GPL")\r
  11  *    http://www.gnu.org/licenses/gpl.html\r
  12  *\r
  13  *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")\r
  14  *    http://www.gnu.org/licenses/lgpl.html\r
  15  *\r
  16  *  - Mozilla Public License Version 1.1 or later (the "MPL")\r
  17  *    http://www.mozilla.org/MPL/MPL-1.1.html\r
  18  *\r
  19  * == END LICENSE ==\r
  20  *\r
  21  * FCKJustifyCommand Class: controls block justification.\r
  22  */\r
  23 \r
  24 var FCKJustifyCommand = function( alignValue )\r
  25 {\r
  26         this.AlignValue = alignValue ;\r
  27 \r
  28         // Detect whether this is the instance for the default alignment.\r
  29         var contentDir = FCKConfig.ContentLangDirection.toLowerCase() ;\r
  30         this.IsDefaultAlign = ( alignValue == 'left' && contentDir == 'ltr' ) ||\r
  31                                                   ( alignValue == 'right' && contentDir == 'rtl' ) ;\r
  32 \r
  33         // Get the class name to be used by this instance.\r
  34         var cssClassName = this._CssClassName = ( function()\r
  35         {\r
  36                 var classes = FCKConfig.JustifyClasses ;\r
  37                 if ( classes )\r
  38                 {\r
  39                         switch ( alignValue )\r
  40                         {\r
  41                                 case 'left' :\r
  42                                         return classes[0] || null ;\r
  43                                 case 'center' :\r
  44                                         return classes[1] || null ;\r
  45                                 case 'right' :\r
  46                                         return classes[2] || null ;\r
  47                                 case 'justify' :\r
  48                                         return classes[3] || null ;\r
  49                         }\r
  50                 }\r
  51                 return null ;\r
  52         } )() ;\r
  53 \r
  54         if ( cssClassName && cssClassName.length > 0 )\r
  55                 this._CssClassRegex = new RegExp( '(?:^|\\s+)' + cssClassName + '(?=$|\\s)' ) ;\r
  56 }\r
  57 \r
  58 FCKJustifyCommand._GetClassNameRegex = function()\r
  59 {\r
  60         var regex = FCKJustifyCommand._ClassRegex ;\r
  61         if ( regex != undefined )\r
  62                 return regex ;\r
  63 \r
  64         var names = [] ;\r
  65 \r
  66         var classes = FCKConfig.JustifyClasses ;\r
  67         if ( classes )\r
  68         {\r
  69                 for ( var i = 0 ; i < 4 ; i++ )\r
  70                 {\r
  71                         var className = classes[i] ;\r
  72                         if ( className && className.length > 0 )\r
  73                                 names.push( className ) ;\r
  74                 }\r
  75         }\r
  76 \r
  77         if ( names.length > 0 )\r
  78                 regex = new RegExp( '(?:^|\\s+)(?:' + names.join( '|' ) + ')(?=$|\\s)' ) ;\r
  79         else\r
  80                 regex = null ;\r
  81 \r
  82         return FCKJustifyCommand._ClassRegex = regex ;\r
  83 }\r
  84 \r
  85 FCKJustifyCommand.prototype =\r
  86 {\r
  87         Execute : function()\r
  88         {\r
  89                 // Save an undo snapshot before doing anything.\r
  90                 FCKUndo.SaveUndoStep() ;\r
  91 \r
  92                 var range = new FCKDomRange( FCK.EditorWindow ) ;\r
  93                 range.MoveToSelection() ;\r
  94 \r
  95                 var currentState = this.GetState() ;\r
  96                 if ( currentState == FCK_TRISTATE_DISABLED )\r
  97                         return ;\r
  98 \r
  99                 // Store a bookmark of the selection since the paragraph iterator might\r
 100                 // change the DOM tree and break selections.\r
 101                 var bookmark = range.CreateBookmark() ;\r
 102 \r
 103                 var cssClassName = this._CssClassName ;\r
 104 \r
 105                 // Apply alignment setting for each paragraph.\r
 106                 var iterator = new FCKDomRangeIterator( range ) ;\r
 107                 var block ;\r
 108                 while ( ( block = iterator.GetNextParagraph() ) )\r
 109                 {\r
 110                         block.removeAttribute( 'align' ) ;\r
 111 \r
 112                         if ( cssClassName )\r
 113                         {\r
 114                                 // Remove the any of the alignment classes from the className.\r
 115                                 var className = block.className.replace( FCKJustifyCommand._GetClassNameRegex(), '' ) ;\r
 116 \r
 117                                 // Append the desired class name.\r
 118                                 if ( currentState == FCK_TRISTATE_OFF )\r
 119                                 {\r
 120                                         if ( className.length > 0 )\r
 121                                                 className += ' ' ;\r
 122                                         block.className = className + cssClassName ;\r
 123                                 }\r
 124                                 else if ( className.length == 0 )\r
 125                                         FCKDomTools.RemoveAttribute( block, 'class' ) ;\r
 126                         }\r
 127                         else\r
 128                         {\r
 129                                 var style = block.style ;\r
 130                                 if ( currentState == FCK_TRISTATE_OFF )\r
 131                                         style.textAlign = this.AlignValue ;\r
 132                                 else\r
 133                                 {\r
 134                                         style.textAlign = '' ;\r
 135                                         if ( style.cssText.length == 0 )\r
 136                                                 block.removeAttribute( 'style' ) ;\r
 137                                 }\r
 138                         }\r
 139                 }\r
 140 \r
 141                 // Restore previous selection.\r
 142                 range.MoveToBookmark( bookmark ) ;\r
 143                 range.Select() ;\r
 144 \r
 145                 FCK.Focus() ;\r
 146                 FCK.Events.FireEvent( 'OnSelectionChange' ) ;\r
 147         },\r
 148 \r
 149         GetState : function()\r
 150         {\r
 151                 // Disabled if not WYSIWYG.\r
 152                 if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG || ! FCK.EditorWindow )\r
 153                         return FCK_TRISTATE_DISABLED ;\r
 154 \r
 155                 // Retrieve the first selected block.\r
 156                 var path = new FCKElementPath( FCKSelection.GetBoundaryParentElement( true ) ) ;\r
 157                 var firstBlock = path.Block || path.BlockLimit ;\r
 158 \r
 159                 if ( !firstBlock || firstBlock.nodeName.toLowerCase() == 'body' )\r
 160                         return FCK_TRISTATE_OFF ;\r
 161 \r
 162                 // Check if the desired style is already applied to the block.\r
 163                 var currentAlign ;\r
 164                 if ( FCKBrowserInfo.IsIE )\r
 165                         currentAlign = firstBlock.currentStyle.textAlign ;\r
 166                 else\r
 167                         currentAlign = FCK.EditorWindow.getComputedStyle( firstBlock, '' ).getPropertyValue( 'text-align' );\r
 168                 currentAlign = currentAlign.replace( /(-moz-|-webkit-|start|auto)/i, '' );\r
 169                 if ( ( !currentAlign && this.IsDefaultAlign ) || currentAlign == this.AlignValue )\r
 170                         return FCK_TRISTATE_ON ;\r
 171                 return FCK_TRISTATE_OFF ;\r
 172         }\r
 173 } ;\r