_source/plugins/maximize/plugin.js

   1 /*\r
   2 Copyright (c) 2003-2011, 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                         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                 // Refresh all editor instances on the page (#5724).\r
  84                 var all = CKEDITOR.instances;\r
  85                 for ( var i in all )\r
  86                 {\r
  87                         var one = all[ i ];\r
  88                         if ( one.mode == 'wysiwyg' && !one.readOnly )\r
  89                         {\r
  90                                 var body = one.document.getBody();\r
  91                                 // Refresh 'contentEditable' otherwise\r
  92                                 // DOM lifting breaks design mode. (#5560)\r
  93                                 body.setAttribute( 'contentEditable', false );\r
  94                                 body.setAttribute( 'contentEditable', true );\r
  95                         }\r
  96                 }\r
  97 \r
  98                 if ( editor.focusManager.hasFocus )\r
  99                 {\r
 100                         editor.toolbox.focus();\r
 101                         editor.focus();\r
 102                 }\r
 103         }\r
 104 \r
 105         /**\r
 106          * Adding an iframe shim to this element, OR removing the existing one if already applied.\r
 107          * Note: This will only affect IE version below 7.\r
 108          */\r
 109          function createIframeShim( element )\r
 110         {\r
 111                 if ( !CKEDITOR.env.ie || CKEDITOR.env.version > 6 )\r
 112                         return null;\r
 113 \r
 114                 var shim = CKEDITOR.dom.element.createFromHtml( '<iframe frameborder="0" tabindex="-1"' +\r
 115                                         ' src="javascript:' +\r
 116                                            'void((function(){' +\r
 117                                                    'document.open();' +\r
 118                                                    ( CKEDITOR.env.isCustomDomain() ? 'document.domain=\'' + this.getDocument().$.domain + '\';' : '' ) +\r
 119                                                    'document.close();' +\r
 120                                            '})())"' +\r
 121                                         ' style="display:block;position:absolute;z-index:-1;' +\r
 122                                         'progid:DXImageTransform.Microsoft.Alpha(opacity=0);' +\r
 123                                         '"></iframe>' );\r
 124                 return element.append( shim, true );\r
 125         }\r
 126 \r
 127         CKEDITOR.plugins.add( 'maximize',\r
 128         {\r
 129                 init : function( editor )\r
 130                 {\r
 131                         var lang = editor.lang;\r
 132                         var mainDocument = CKEDITOR.document,\r
 133                                 mainWindow = mainDocument.getWindow();\r
 134 \r
 135                         // Saved selection and scroll position for the editing area.\r
 136                         var savedSelection,\r
 137                                 savedScroll;\r
 138 \r
 139                         // Saved scroll position for the outer window.\r
 140                         var outerScroll;\r
 141 \r
 142                         var shim;\r
 143 \r
 144                         // Saved resize handler function.\r
 145                         function resizeHandler()\r
 146                         {\r
 147                                 var viewPaneSize = mainWindow.getViewPaneSize();\r
 148                                 shim && shim.setStyles( { width : viewPaneSize.width + 'px', height : viewPaneSize.height + 'px' } );\r
 149                                 editor.resize( viewPaneSize.width, viewPaneSize.height, null, true );\r
 150                         }\r
 151 \r
 152                         // Retain state after mode switches.\r
 153                         var savedState = CKEDITOR.TRISTATE_OFF;\r
 154 \r
 155                         editor.addCommand( 'maximize',\r
 156                                 {\r
 157                                         modes : { wysiwyg : 1, source : 1 },\r
 158                                         readOnly : 1,\r
 159                                         editorFocus : false,\r
 160                                         exec : function()\r
 161                                         {\r
 162                                                 var container = editor.container.getChild( 1 );\r
 163                                                 var contents = editor.getThemeSpace( 'contents' );\r
 164 \r
 165                                                 // Save current selection and scroll position in editing area.\r
 166                                                 if ( editor.mode == 'wysiwyg' )\r
 167                                                 {\r
 168                                                         var selection = editor.getSelection();\r
 169                                                         savedSelection = selection && selection.getRanges();\r
 170                                                         savedScroll = mainWindow.getScrollPosition();\r
 171                                                 }\r
 172                                                 else\r
 173                                                 {\r
 174                                                         var $textarea = editor.textarea.$;\r
 175                                                         savedSelection = !CKEDITOR.env.ie && [ $textarea.selectionStart, $textarea.selectionEnd ];\r
 176                                                         savedScroll = [ $textarea.scrollLeft, $textarea.scrollTop ];\r
 177                                                 }\r
 178 \r
 179                                                 if ( this.state == CKEDITOR.TRISTATE_OFF )              // Go fullscreen if the state is off.\r
 180                                                 {\r
 181                                                         // Add event handler for resizing.\r
 182                                                         mainWindow.on( 'resize', resizeHandler );\r
 183 \r
 184                                                         // Save the scroll bar position.\r
 185                                                         outerScroll = mainWindow.getScrollPosition();\r
 186 \r
 187                                                         // Save and reset the styles for the entire node tree.\r
 188                                                         var currentNode = editor.container;\r
 189                                                         while ( ( currentNode = currentNode.getParent() ) )\r
 190                                                         {\r
 191                                                                 currentNode.setCustomData( 'maximize_saved_styles', saveStyles( currentNode ) );\r
 192                                                                 currentNode.setStyle( 'z-index', editor.config.baseFloatZIndex - 1 );\r
 193                                                         }\r
 194                                                         contents.setCustomData( 'maximize_saved_styles', saveStyles( contents, true ) );\r
 195                                                         container.setCustomData( 'maximize_saved_styles', saveStyles( container, true ) );\r
 196 \r
 197                                                         // Hide scroll bars.\r
 198                                                         var styles =\r
 199                                                                 {\r
 200                                                                         overflow : CKEDITOR.env.webkit ? '' : 'hidden',         // #6896\r
 201                                                                         width : 0,\r
 202                                                                         height : 0\r
 203                                                                 };\r
 204 \r
 205                                                         mainDocument.getDocumentElement().setStyles( styles );\r
 206                                                         !CKEDITOR.env.gecko && mainDocument.getDocumentElement().setStyle( 'position', 'fixed' );\r
 207                                                         !( CKEDITOR.env.gecko && CKEDITOR.env.quirks ) && mainDocument.getBody().setStyles( styles );\r
 208 \r
 209                                                         // Scroll to the top left (IE needs some time for it - #4923).\r
 210                                                         CKEDITOR.env.ie ?\r
 211                                                                 setTimeout( function() { mainWindow.$.scrollTo( 0, 0 ); }, 0 ) :\r
 212                                                                 mainWindow.$.scrollTo( 0, 0 );\r
 213 \r
 214                                                         // Resize and move to top left.\r
 215                                                         // Special treatment for FF Quirks (#7284)\r
 216                                                         container.setStyle( 'position', CKEDITOR.env.gecko && CKEDITOR.env.quirks ? 'fixed' : 'absolute' );\r
 217                                                         container.$.offsetLeft;                 // SAFARI BUG: See #2066.\r
 218                                                         container.setStyles(\r
 219                                                                 {\r
 220                                                                         'z-index' : editor.config.baseFloatZIndex - 1,\r
 221                                                                         left : '0px',\r
 222                                                                         top : '0px'\r
 223                                                                 } );\r
 224 \r
 225                                                         shim =  createIframeShim( container );          // IE6 select element penetration when maximized. (#4459)\r
 226 \r
 227                                                         // Add cke_maximized class before resize handle since that will change things sizes (#5580)\r
 228                                                         container.addClass( 'cke_maximized' );\r
 229 \r
 230                                                         resizeHandler();\r
 231 \r
 232                                                         // Still not top left? Fix it. (Bug #174)\r
 233                                                         var offset = container.getDocumentPosition();\r
 234                                                         container.setStyles(\r
 235                                                                 {\r
 236                                                                         left : ( -1 * offset.x ) + 'px',\r
 237                                                                         top : ( -1 * offset.y ) + 'px'\r
 238                                                                 } );\r
 239 \r
 240                                                         // Fixing positioning editor chrome in Firefox break design mode. (#5149)\r
 241                                                         CKEDITOR.env.gecko && refreshCursor( editor );\r
 242 \r
 243                                                 }\r
 244                                                 else if ( this.state == CKEDITOR.TRISTATE_ON )  // Restore from fullscreen if the state is on.\r
 245                                                 {\r
 246                                                         // Remove event handler for resizing.\r
 247                                                         mainWindow.removeListener( 'resize', resizeHandler );\r
 248 \r
 249                                                         // Restore CSS styles for the entire node tree.\r
 250                                                         var editorElements = [ contents, container ];\r
 251                                                         for ( var i = 0 ; i < editorElements.length ; i++ )\r
 252                                                         {\r
 253                                                                 restoreStyles( editorElements[i], editorElements[i].getCustomData( 'maximize_saved_styles' ) );\r
 254                                                                 editorElements[i].removeCustomData( 'maximize_saved_styles' );\r
 255                                                         }\r
 256 \r
 257                                                         currentNode = editor.container;\r
 258                                                         while ( ( currentNode = currentNode.getParent() ) )\r
 259                                                         {\r
 260                                                                 restoreStyles( currentNode, currentNode.getCustomData( 'maximize_saved_styles' ) );\r
 261                                                                 currentNode.removeCustomData( 'maximize_saved_styles' );\r
 262                                                         }\r
 263 \r
 264                                                         // Restore the window scroll position.\r
 265                                                         CKEDITOR.env.ie ?\r
 266                                                                 setTimeout( function() { mainWindow.$.scrollTo( outerScroll.x, outerScroll.y ); }, 0 ) :\r
 267                                                                 mainWindow.$.scrollTo( outerScroll.x, outerScroll.y );\r
 268 \r
 269                                                         // Remove cke_maximized class.\r
 270                                                         container.removeClass( 'cke_maximized' );\r
 271 \r
 272                                                         // Webkit requires a re-layout on editor chrome. (#6695)\r
 273                                                         if ( CKEDITOR.env.webkit )\r
 274                                                         {\r
 275                                                                 container.setStyle( 'display', 'inline' );\r
 276                                                                 setTimeout( function(){ container.setStyle( 'display', 'block' ); }, 0 );\r
 277                                                         }\r
 278 \r
 279                                                         if ( shim )\r
 280                                                         {\r
 281                                                                 shim.remove();\r
 282                                                                 shim = null;\r
 283                                                         }\r
 284 \r
 285                                                         // Emit a resize event, because this time the size is modified in\r
 286                                                         // restoreStyles.\r
 287                                                         editor.fire( 'resize' );\r
 288                                                 }\r
 289 \r
 290                                                 this.toggleState();\r
 291 \r
 292                                                 // Toggle button label.\r
 293                                                 var button = this.uiItems[ 0 ];\r
 294                                                 // Only try to change the button if it exists (#6166)\r
 295                                                 if( button )\r
 296                                                 {\r
 297                                                         var label = ( this.state == CKEDITOR.TRISTATE_OFF )\r
 298                                                                 ? lang.maximize : lang.minimize;\r
 299                                                         var buttonNode = editor.element.getDocument().getById( button._.id );\r
 300                                                         buttonNode.getChild( 1 ).setHtml( label );\r
 301                                                         buttonNode.setAttribute( 'title', label );\r
 302                                                         buttonNode.setAttribute( 'href', 'javascript:void("' + label + '");' );\r
 303                                                 }\r
 304 \r
 305                                                 // Restore selection and scroll position in editing area.\r
 306                                                 if ( editor.mode == 'wysiwyg' )\r
 307                                                 {\r
 308                                                         if ( savedSelection )\r
 309                                                         {\r
 310                                                                 // Fixing positioning editor chrome in Firefox break design mode. (#5149)\r
 311                                                                 CKEDITOR.env.gecko && refreshCursor( editor );\r
 312 \r
 313                                                                 editor.getSelection().selectRanges(savedSelection);\r
 314                                                                 var element = editor.getSelection().getStartElement();\r
 315                                                                 element && element.scrollIntoView( true );\r
 316                                                         }\r
 317 \r
 318                                                         else\r
 319                                                                 mainWindow.$.scrollTo( savedScroll.x, savedScroll.y );\r
 320                                                 }\r
 321                                                 else\r
 322                                                 {\r
 323                                                         if ( savedSelection )\r
 324                                                         {\r
 325                                                                 $textarea.selectionStart = savedSelection[0];\r
 326                                                                 $textarea.selectionEnd = savedSelection[1];\r
 327                                                         }\r
 328                                                         $textarea.scrollLeft = savedScroll[0];\r
 329                                                         $textarea.scrollTop = savedScroll[1];\r
 330                                                 }\r
 331 \r
 332                                                 savedSelection = savedScroll = null;\r
 333                                                 savedState = this.state;\r
 334                                         },\r
 335                                         canUndo : false\r
 336                                 } );\r
 337 \r
 338                         editor.ui.addButton( 'Maximize',\r
 339                                 {\r
 340                                         label : lang.maximize,\r
 341                                         command : 'maximize'\r
 342                                 } );\r
 343 \r
 344                         // Restore the command state after mode change, unless it has been changed to disabled (#6467)\r
 345                         editor.on( 'mode', function()\r
 346                                 {\r
 347                                         var command = editor.getCommand( 'maximize' );\r
 348                                         command.setState( command.state == CKEDITOR.TRISTATE_DISABLED ? CKEDITOR.TRISTATE_DISABLED : savedState );\r
 349                                 }, null, null, 100 );\r
 350                 }\r
 351         } );\r
 352 })();\r