_source/plugins/maximize/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 (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                         $element.style.cssText = savedStyles.inline;\r
  78                 restoreFormStyles( data );\r
  79         }\r
  80 \r
  81         function refreshCursor( editor )\r
  82         {\r
  83                 if ( editor.focusManager.hasFocus )\r
  84                 {\r
  85                         editor.toolbox.focus();\r
  86                         editor.focus();\r
  87                 }\r
  88         }\r
  89 \r
  90         /**\r
  91          * Adding an iframe shim to this element, OR removing the existing one if already applied.\r
  92          * Note: This will only affect IE version below 7.\r
  93          */\r
  94          function createIframeShim( element )\r
  95         {\r
  96                 if ( !CKEDITOR.env.ie || CKEDITOR.env.version > 6 )\r
  97                         return null;\r
  98 \r
  99                 var shim = CKEDITOR.dom.element.createFromHtml( '<iframe frameborder="0" tabindex="-1"' +\r
 100                                         ' src="javascript:' +\r
 101                                            'void((function(){' +\r
 102                                                    'document.open();' +\r
 103                                                    ( CKEDITOR.env.isCustomDomain() ? 'document.domain=\'' + this.getDocument().$.domain + '\';' : '' ) +\r
 104                                                    'document.close();' +\r
 105                                            '})())"' +\r
 106                                         ' style="display:block;position:absolute;z-index:-1;' +\r
 107                                         'progid:DXImageTransform.Microsoft.Alpha(opacity=0);' +\r
 108                                         '"></iframe>' );\r
 109                 return element.append( shim, true );\r
 110         }\r
 111 \r
 112         CKEDITOR.plugins.add( 'maximize',\r
 113         {\r
 114                 init : function( editor )\r
 115                 {\r
 116                         var lang = editor.lang;\r
 117                         var mainDocument = CKEDITOR.document;\r
 118                         var mainWindow = mainDocument.getWindow();\r
 119 \r
 120                         // Saved selection and scroll position for the editing area.\r
 121                         var savedSelection;\r
 122                         var savedScroll;\r
 123 \r
 124                         // Saved scroll position for the outer window.\r
 125                         var outerScroll;\r
 126 \r
 127                         var shim;\r
 128 \r
 129                         // Saved resize handler function.\r
 130                         function resizeHandler()\r
 131                         {\r
 132                                 var viewPaneSize = mainWindow.getViewPaneSize();\r
 133                                 shim && shim.setStyles( { width : viewPaneSize.width + 'px', height : viewPaneSize.height + 'px' } );\r
 134                                 editor.resize( viewPaneSize.width, viewPaneSize.height, null, true );\r
 135                         }\r
 136 \r
 137                         // Retain state after mode switches.\r
 138                         var savedState = CKEDITOR.TRISTATE_OFF;\r
 139 \r
 140                         editor.addCommand( 'maximize',\r
 141                                 {\r
 142                                         modes : { wysiwyg : 1, source : 1 },\r
 143                                         editorFocus : false,\r
 144                                         exec : function()\r
 145                                         {\r
 146                                                 var container = editor.container.getChild( 1 );\r
 147                                                 var contents = editor.getThemeSpace( 'contents' );\r
 148 \r
 149                                                 // Save current selection and scroll position in editing area.\r
 150                                                 if ( editor.mode == 'wysiwyg' )\r
 151                                                 {\r
 152                                                         var selection = editor.getSelection();\r
 153                                                         savedSelection = selection && selection.getRanges();\r
 154                                                         savedScroll = mainWindow.getScrollPosition();\r
 155                                                 }\r
 156                                                 else\r
 157                                                 {\r
 158                                                         var $textarea = editor.textarea.$;\r
 159                                                         savedSelection = !CKEDITOR.env.ie && [ $textarea.selectionStart, $textarea.selectionEnd ];\r
 160                                                         savedScroll = [ $textarea.scrollLeft, $textarea.scrollTop ];\r
 161                                                 }\r
 162 \r
 163                                                 if ( this.state == CKEDITOR.TRISTATE_OFF )              // Go fullscreen if the state is off.\r
 164                                                 {\r
 165                                                         // Add event handler for resizing.\r
 166                                                         mainWindow.on( 'resize', resizeHandler );\r
 167 \r
 168                                                         // Save the scroll bar position.\r
 169                                                         outerScroll = mainWindow.getScrollPosition();\r
 170 \r
 171                                                         // Save and reset the styles for the entire node tree.\r
 172                                                         var currentNode = editor.container;\r
 173                                                         while ( ( currentNode = currentNode.getParent() ) )\r
 174                                                         {\r
 175                                                                 currentNode.setCustomData( 'maximize_saved_styles', saveStyles( currentNode ) );\r
 176                                                                 currentNode.setStyle( 'z-index', editor.config.baseFloatZIndex - 1 );\r
 177                                                         }\r
 178                                                         contents.setCustomData( 'maximize_saved_styles', saveStyles( contents, true ) );\r
 179                                                         container.setCustomData( 'maximize_saved_styles', saveStyles( container, true ) );\r
 180 \r
 181                                                         // Hide scroll bars.\r
 182                                                         if ( CKEDITOR.env.ie )\r
 183                                                         {\r
 184                                                                 mainDocument.$.documentElement.style.overflow =\r
 185                                                                         mainDocument.getBody().$.style.overflow = 'hidden';\r
 186                                                         }\r
 187                                                         else\r
 188                                                         {\r
 189                                                                 mainDocument.getBody().setStyles(\r
 190                                                                         {\r
 191                                                                                 overflow : 'hidden',\r
 192                                                                                 width : '0px',\r
 193                                                                                 height : '0px'\r
 194                                                                         } );\r
 195                                                         }\r
 196 \r
 197                                                         // Scroll to the top left (IE needs some time for it - #4923).\r
 198                                                         CKEDITOR.env.ie ?\r
 199                                                                 setTimeout( function() { mainWindow.$.scrollTo( 0, 0 ); }, 0 ) :\r
 200                                                                 mainWindow.$.scrollTo( 0, 0 );\r
 201 \r
 202                                                         // Resize and move to top left.\r
 203                                                         var viewPaneSize = mainWindow.getViewPaneSize();\r
 204                                                         container.setStyle( 'position', 'absolute' );\r
 205                                                         container.$.offsetLeft;                 // SAFARI BUG: See #2066.\r
 206                                                         container.setStyles(\r
 207                                                                 {\r
 208                                                                         'z-index' : editor.config.baseFloatZIndex - 1,\r
 209                                                                         left : '0px',\r
 210                                                                         top : '0px'\r
 211                                                                 } );\r
 212 \r
 213                                                         shim =  createIframeShim( container );          // IE6 select element penetration when maximized. (#4459)\r
 214                                                         resizeHandler();\r
 215 \r
 216                                                         // Still not top left? Fix it. (Bug #174)\r
 217                                                         var offset = container.getDocumentPosition();\r
 218                                                         container.setStyles(\r
 219                                                                 {\r
 220                                                                         left : ( -1 * offset.x ) + 'px',\r
 221                                                                         top : ( -1 * offset.y ) + 'px'\r
 222                                                                 } );\r
 223 \r
 224                                                         // Fixing positioning editor chrome in Firefox break design mode. (#5149)\r
 225                                                         CKEDITOR.env.gecko && refreshCursor( editor );\r
 226 \r
 227                                                         // Add cke_maximized class.\r
 228                                                         container.addClass( 'cke_maximized' );\r
 229                                                 }\r
 230                                                 else if ( this.state == CKEDITOR.TRISTATE_ON )  // Restore from fullscreen if the state is on.\r
 231                                                 {\r
 232                                                         // Remove event handler for resizing.\r
 233                                                         mainWindow.removeListener( 'resize', resizeHandler );\r
 234 \r
 235                                                         // Restore CSS styles for the entire node tree.\r
 236                                                         var editorElements = [ contents, container ];\r
 237                                                         for ( var i = 0 ; i < editorElements.length ; i++ )\r
 238                                                         {\r
 239                                                                 restoreStyles( editorElements[i], editorElements[i].getCustomData( 'maximize_saved_styles' ) );\r
 240                                                                 editorElements[i].removeCustomData( 'maximize_saved_styles' );\r
 241                                                         }\r
 242 \r
 243                                                         currentNode = editor.container;\r
 244                                                         while ( ( currentNode = currentNode.getParent() ) )\r
 245                                                         {\r
 246                                                                 restoreStyles( currentNode, currentNode.getCustomData( 'maximize_saved_styles' ) );\r
 247                                                                 currentNode.removeCustomData( 'maximize_saved_styles' );\r
 248                                                         }\r
 249 \r
 250                                                         // Restore the window scroll position.\r
 251                                                         CKEDITOR.env.ie ?\r
 252                                                                 setTimeout( function() { mainWindow.$.scrollTo( outerScroll.x, outerScroll.y ); }, 0 ) :\r
 253                                                                 mainWindow.$.scrollTo( outerScroll.x, outerScroll.y );\r
 254 \r
 255                                                         // Remove cke_maximized class.\r
 256                                                         container.removeClass( 'cke_maximized' );\r
 257 \r
 258                                                         if ( shim )\r
 259                                                         {\r
 260                                                                 shim.remove();\r
 261                                                                 shim = null;\r
 262                                                         }\r
 263 \r
 264                                                         // Emit a resize event, because this time the size is modified in\r
 265                                                         // restoreStyles.\r
 266                                                         editor.fire( 'resize' );\r
 267                                                 }\r
 268 \r
 269                                                 this.toggleState();\r
 270 \r
 271                                                 // Toggle button label.\r
 272                                                 var button = this.uiItems[ 0 ];\r
 273                                                 var label = ( this.state == CKEDITOR.TRISTATE_OFF )\r
 274                                                         ? lang.maximize : lang.minimize;\r
 275                                                 var buttonNode = editor.element.getDocument().getById( button._.id );\r
 276                                                 buttonNode.getChild( 1 ).setHtml( label );\r
 277                                                 buttonNode.setAttribute( 'title', label );\r
 278                                                 buttonNode.setAttribute( 'href', 'javascript:void("' + label + '");' );\r
 279 \r
 280                                                 // Restore selection and scroll position in editing area.\r
 281                                                 if ( editor.mode == 'wysiwyg' )\r
 282                                                 {\r
 283                                                         if ( savedSelection )\r
 284                                                         {\r
 285                                                                 // Fixing positioning editor chrome in Firefox break design mode. (#5149)\r
 286                                                                 CKEDITOR.env.gecko && refreshCursor( editor );\r
 287 \r
 288                                                                 editor.getSelection().selectRanges(savedSelection);\r
 289                                                                 var element = editor.getSelection().getStartElement();\r
 290                                                                 element && element.scrollIntoView( true );\r
 291                                                         }\r
 292 \r
 293                                                         else\r
 294                                                                 mainWindow.$.scrollTo( savedScroll.x, savedScroll.y );\r
 295                                                 }\r
 296                                                 else\r
 297                                                 {\r
 298                                                         if ( savedSelection )\r
 299                                                         {\r
 300                                                                 $textarea.selectionStart = savedSelection[0];\r
 301                                                                 $textarea.selectionEnd = savedSelection[1];\r
 302                                                         }\r
 303                                                         $textarea.scrollLeft = savedScroll[0];\r
 304                                                         $textarea.scrollTop = savedScroll[1];\r
 305                                                 }\r
 306 \r
 307                                                 savedSelection = savedScroll = null;\r
 308                                                 savedState = this.state;\r
 309                                         },\r
 310                                         canUndo : false\r
 311                                 } );\r
 312 \r
 313                         editor.ui.addButton( 'Maximize',\r
 314                                 {\r
 315                                         label : lang.maximize,\r
 316                                         command : 'maximize'\r
 317                                 } );\r
 318 \r
 319                         // Restore the command state after mode change.\r
 320                         editor.on( 'mode', function()\r
 321                                 {\r
 322                                         editor.getCommand( 'maximize' ).setState( savedState );\r
 323                                 }, null, null, 100 );\r
 324                 }\r
 325         } );\r
 326 })();\r