_source/plugins/maximize/plugin.js

   1 /*\r
   2 Copyright (c) 2003-2009, CKSource - Frederico Knabben. All rights reserved.\r
   3 For licensing, see LICENSE.html or http://ckeditor.com/license\r
   4 */\r
   5 \r
   6 (function()\r
   7 {\r
   8         function protectFormStyles( formElement )\r
   9         {\r
  10                 if ( !formElement || formElement.type != CKEDITOR.NODE_ELEMENT || formElement.getName() != 'form' )\r
  11                         return [];\r
  12 \r
  13                 var hijackRecord = [];\r
  14                 var hijackNames = [ 'style', 'className' ];\r
  15                 for ( var i = 0 ; i < hijackNames.length ; i++ )\r
  16                 {\r
  17                         var name = hijackNames[i];\r
  18                         var $node = formElement.$.elements.namedItem( name );\r
  19                         if ( $node )\r
  20                         {\r
  21                                 var hijackNode = new CKEDITOR.dom.element( $node );\r
  22                                 hijackRecord.push( [ hijackNode, hijackNode.nextSibling ] );\r
  23                                 hijackNode.remove();\r
  24                         }\r
  25                 }\r
  26 \r
  27                 return hijackRecord;\r
  28         }\r
  29 \r
  30         function restoreFormStyles( formElement, hijackRecord )\r
  31         {\r
  32                 if ( !formElement || formElement.type != CKEDITOR.NODE_ELEMENT || formElement.getName() != 'form' )\r
  33                         return;\r
  34 \r
  35                 if ( hijackRecord.length > 0 )\r
  36                 {\r
  37                         for ( var i = hijackRecord.length - 1 ; i >= 0 ; i-- )\r
  38                         {\r
  39                                 var node = hijackRecord[i][0];\r
  40                                 var sibling = hijackRecord[i][1];\r
  41                                 if ( sibling )\r
  42                                         node.insertBefore( sibling );\r
  43                                 else\r
  44                                         node.appendTo( formElement );\r
  45                         }\r
  46                 }\r
  47         }\r
  48 \r
  49         function saveStyles( element, isInsideEditor )\r
  50         {\r
  51                 var data = protectFormStyles( element );\r
  52                 var retval = {};\r
  53 \r
  54                 var $element = element.$;\r
  55 \r
  56                 if ( !isInsideEditor )\r
  57                 {\r
  58                         retval[ 'class' ] = $element.className || '';\r
  59                         $element.className = '';\r
  60                 }\r
  61 \r
  62                 retval.inline = $element.style.cssText || '';\r
  63                 if ( !isInsideEditor )          // Reset any external styles that might interfere. (#2474)\r
  64                         $element.style.cssText = 'position: static; overflow: visible';\r
  65 \r
  66                 restoreFormStyles( data );\r
  67                 return retval;\r
  68         }\r
  69 \r
  70         function restoreStyles( element, savedStyles )\r
  71         {\r
  72                 var data = protectFormStyles( element );\r
  73                 var $element = element.$;\r
  74                 if ( 'class' in savedStyles )\r
  75                         $element.className = savedStyles[ 'class' ];\r
  76                 if ( 'inline' in savedStyles )\r
  77                         $element.style.cssText = savedStyles.inline;\r
  78                 restoreFormStyles( data );\r
  79         }\r
  80 \r
  81         function getResizeHandler( mainWindow, editor )\r
  82         {\r
  83                 return function()\r
  84                 {\r
  85                         var viewPaneSize = mainWindow.getViewPaneSize();\r
  86                         editor.resize( viewPaneSize.width, viewPaneSize.height, null, true );\r
  87                 };\r
  88         }\r
  89 \r
  90         CKEDITOR.plugins.add( 'maximize',\r
  91         {\r
  92                 init : function( editor )\r
  93                 {\r
  94                         var lang = editor.lang;\r
  95                         var mainDocument = CKEDITOR.document;\r
  96                         var mainWindow = mainDocument.getWindow();\r
  97 \r
  98                         // Saved selection and scroll position for the editing area.\r
  99                         var savedSelection;\r
 100                         var savedScroll;\r
 101 \r
 102                         // Saved scroll position for the outer window.\r
 103                         var outerScroll;\r
 104 \r
 105                         // Saved resize handler function.\r
 106                         var resizeHandler = getResizeHandler( mainWindow, editor );\r
 107 \r
 108                         // Retain state after mode switches.\r
 109                         var savedState = CKEDITOR.TRISTATE_OFF;\r
 110 \r
 111                         editor.addCommand( 'maximize',\r
 112                                 {\r
 113                                         modes : { wysiwyg : 1, source : 1 },\r
 114                                         editorFocus : false,\r
 115                                         exec : function()\r
 116                                         {\r
 117                                                 var container = editor.container.getChild( [ 0, 0 ] );\r
 118                                                 var contents = editor.getThemeSpace( 'contents' );\r
 119 \r
 120                                                 // Save current selection and scroll position in editing area.\r
 121                                                 if ( editor.mode == 'wysiwyg' )\r
 122                                                 {\r
 123                                                         var selection = editor.getSelection();\r
 124                                                         savedSelection = selection && selection.getRanges();\r
 125                                                         savedScroll = mainWindow.getScrollPosition();\r
 126                                                 }\r
 127                                                 else\r
 128                                                 {\r
 129                                                         var $textarea = editor.textarea.$;\r
 130                                                         savedSelection = !CKEDITOR.env.ie && [ $textarea.selectionStart, $textarea.selectionEnd ];\r
 131                                                         savedScroll = [ $textarea.scrollLeft, $textarea.scrollTop ];\r
 132                                                 }\r
 133 \r
 134                                                 if ( this.state == CKEDITOR.TRISTATE_OFF )              // Go fullscreen if the state is off.\r
 135                                                 {\r
 136                                                         // Add event handler for resizing.\r
 137                                                         mainWindow.on( 'resize', resizeHandler );\r
 138 \r
 139                                                         // Save the scroll bar position.\r
 140                                                         outerScroll = mainWindow.getScrollPosition();\r
 141 \r
 142                                                         // Save and reset the styles for the entire node tree.\r
 143                                                         var currentNode = editor.container;\r
 144                                                         while ( ( currentNode = currentNode.getParent() ) )\r
 145                                                         {\r
 146                                                                 currentNode.setCustomData( 'maximize_saved_styles', saveStyles( currentNode ) );\r
 147                                                                 currentNode.setStyle( 'z-index', editor.config.baseFloatZIndex - 1 );\r
 148                                                         }\r
 149                                                         contents.setCustomData( 'maximize_saved_styles', saveStyles( contents, true ) );\r
 150                                                         container.setCustomData( 'maximize_saved_styles', saveStyles( container, true ) );\r
 151 \r
 152                                                         // Hide scroll bars.\r
 153                                                         if ( CKEDITOR.env.ie )\r
 154                                                         {\r
 155                                                                 mainDocument.$.documentElement.style.overflow =\r
 156                                                                         mainDocument.getBody().$.style.overflow = 'hidden';\r
 157                                                         }\r
 158                                                         else\r
 159                                                         {\r
 160                                                                 mainDocument.getBody().setStyles(\r
 161                                                                         {\r
 162                                                                                 overflow : 'hidden',\r
 163                                                                                 width : '0px',\r
 164                                                                                 height : '0px'\r
 165                                                                         } );\r
 166                                                         }\r
 167 \r
 168                                                         // Scroll to the top left.\r
 169                                                         mainWindow.$.scrollTo( 0, 0 );\r
 170 \r
 171                                                         // Resize and move to top left.\r
 172                                                         var viewPaneSize = mainWindow.getViewPaneSize();\r
 173                                                         container.setStyle( 'position', 'absolute' );\r
 174                                                         container.$.offsetLeft;                 // SAFARI BUG: See #2066.\r
 175                                                         container.setStyles(\r
 176                                                                 {\r
 177                                                                         'z-index' : editor.config.baseFloatZIndex - 1,\r
 178                                                                         left : '0px',\r
 179                                                                         top : '0px'\r
 180                                                                 } );\r
 181                                                         editor.resize( viewPaneSize.width, viewPaneSize.height, null, true );\r
 182 \r
 183                                                         // Still not top left? Fix it. (Bug #174)\r
 184                                                         var offset = container.getDocumentPosition();\r
 185                                                         container.setStyles(\r
 186                                                                 {\r
 187                                                                         left : ( -1 * offset.x ) + 'px',\r
 188                                                                         top : ( -1 * offset.y ) + 'px'\r
 189                                                                 } );\r
 190 \r
 191                                                         // Add cke_maximized class.\r
 192                                                         container.addClass( 'cke_maximized' );\r
 193                                                 }\r
 194                                                 else if ( this.state == CKEDITOR.TRISTATE_ON )  // Restore from fullscreen if the state is on.\r
 195                                                 {\r
 196                                                         // Remove event handler for resizing.\r
 197                                                         mainWindow.removeListener( 'resize', resizeHandler );\r
 198 \r
 199                                                         // Restore CSS styles for the entire node tree.\r
 200                                                         var editorElements = [ contents, container ];\r
 201                                                         for ( var i = 0 ; i < editorElements.length ; i++ )\r
 202                                                         {\r
 203                                                                 restoreStyles( editorElements[i], editorElements[i].getCustomData( 'maximize_saved_styles' ) );\r
 204                                                                 editorElements[i].removeCustomData( 'maximize_saved_styles' );\r
 205                                                         }\r
 206 \r
 207                                                         currentNode = editor.container;\r
 208                                                         while ( ( currentNode = currentNode.getParent() ) )\r
 209                                                         {\r
 210                                                                 restoreStyles( currentNode, currentNode.getCustomData( 'maximize_saved_styles' ) );\r
 211                                                                 currentNode.removeCustomData( 'maximize_saved_styles' );\r
 212                                                         }\r
 213 \r
 214                                                         // Restore the window scroll position.\r
 215                                                         mainWindow.$.scrollTo( outerScroll.x, outerScroll.y );\r
 216 \r
 217                                                         // Remove cke_maximized class.\r
 218                                                         container.removeClass( 'cke_maximized' );\r
 219 \r
 220                                                         // Emit a resize event, because this time the size is modified in\r
 221                                                         // restoreStyles.\r
 222                                                         editor.fire( 'resize' );\r
 223                                                 }\r
 224 \r
 225                                                 this.toggleState();\r
 226 \r
 227                                                 // Toggle button label.\r
 228                                                 var button = this.uiItems[ 0 ];\r
 229                                                 var label = ( this.state == CKEDITOR.TRISTATE_OFF )\r
 230                                                         ? lang.maximize : lang.minimize;\r
 231                                                 var buttonNode = editor.element.getDocument().getById( button._.id );\r
 232                                                 buttonNode.getChild( 1 ).setHtml( label );\r
 233                                                 buttonNode.setAttribute( 'title', label );\r
 234                                                 buttonNode.setAttribute( 'href', 'javascript:void("' + label + '");' );\r
 235 \r
 236                                                 // Restore selection and scroll position in editing area.\r
 237                                                 if ( editor.mode == 'wysiwyg' )\r
 238                                                 {\r
 239                                                         if ( savedSelection )\r
 240                                                         {\r
 241                                                                 editor.getSelection().selectRanges(savedSelection);\r
 242                                                                 var element = editor.getSelection().getStartElement();\r
 243                                                                 element && element.scrollIntoView( true );\r
 244                                                         }\r
 245 \r
 246                                                         else\r
 247                                                                 mainWindow.$.scrollTo( savedScroll.x, savedScroll.y );\r
 248                                                 }\r
 249                                                 else\r
 250                                                 {\r
 251                                                         if ( savedSelection )\r
 252                                                         {\r
 253                                                                 $textarea.selectionStart = savedSelection[0];\r
 254                                                                 $textarea.selectionEnd = savedSelection[1];\r
 255                                                         }\r
 256                                                         $textarea.scrollLeft = savedScroll[0];\r
 257                                                         $textarea.scrollTop = savedScroll[1];\r
 258                                                 }\r
 259 \r
 260                                                 savedSelection = savedScroll = null;\r
 261                                                 savedState = this.state;\r
 262                                         },\r
 263                                         canUndo : false\r
 264                                 } );\r
 265 \r
 266                         editor.ui.addButton( 'Maximize',\r
 267                                 {\r
 268                                         label : lang.maximize,\r
 269                                         command : 'maximize'\r
 270                                 } );\r
 271 \r
 272                         // Restore the command state after mode change.\r
 273                         editor.on( 'mode', function()\r
 274                                 {\r
 275                                         editor.getCommand( 'maximize' ).setState( savedState );\r
 276                                 }, null, null, 100 );\r
 277                 }\r
 278         } );\r
 279 })();\r