/*

Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.

For licensing, see LICENSE.html or http://ckeditor.com/license

*/



/**

 * @fileOverview The "wysiwygarea" plugin. It registers the "wysiwyg" editing

 *		mode, which handles the main editing area space.

 */



(function()

{

	// Matching an empty paragraph at the end of document.

	var emptyParagraphRegexp = /(^|<body\b[^>]*>)\s*<(p|div|address|h\d|center|pre)[^>]*>\s*(?:<br[^>]*>|&nbsp;|\u00A0|&#160;)?\s*(:?<\/\2>)?\s*(?=$|<\/body>)/gi;



	var notWhitespaceEval = CKEDITOR.dom.walker.whitespaces( true ),

	  notBogus = CKEDITOR.dom.walker.bogus( true ),

	  notEmpty = function( node ) { return notWhitespaceEval( node ) && notBogus( node ); };



	// Elements that could blink the cursor anchoring beside it, like hr, page-break. (#6554)

	function nonEditable( element )

	{

		return element.isBlockBoundary() && CKEDITOR.dtd.$empty[ element.getName() ];

	}





	function onInsert( insertFunc )

	{

		return function( evt )

		{

			if ( this.mode == 'wysiwyg' )

			{

				this.focus();



				// Since the insertion might happen from within dialog or menu

				// where the editor selection might be locked at the moment,

				// update the locked selection.

				var selection = this.getSelection(),

				selIsLocked = selection.isLocked;



				selIsLocked && selection.unlock();



				this.fire( 'saveSnapshot' );



				insertFunc.call( this, evt.data );



				selIsLocked && this.getSelection().lock();



				// Save snaps after the whole execution completed.

				// This's a workaround for make DOM modification's happened after

				// 'insertElement' to be included either, e.g. Form-based dialogs' 'commitContents'

				// call.

				CKEDITOR.tools.setTimeout( function()

				   {

					   this.fire( 'saveSnapshot' );

				   }, 0, this );

			}

		};

	}



	function doInsertHtml( data )

	{

		if ( this.dataProcessor )

			data = this.dataProcessor.toHtml( data );



		if ( !data )

			return;



		// HTML insertion only considers the first range.

		var selection = this.getSelection(),

			range = selection.getRanges()[ 0 ];



		if ( range.checkReadOnly() )

			return;



		// Opera: force block splitting when pasted content contains block. (#7801)

		if ( CKEDITOR.env.opera )

		{

			var path = new CKEDITOR.dom.elementPath( range.startContainer );

			if ( path.block )

			{

				var nodes = CKEDITOR.htmlParser.fragment.fromHtml( data, false ).children;

				for ( var i = 0, count = nodes.length; i < count; i++ )

				{

					if ( nodes[ i ]._.isBlockLike )

					{

						range.splitBlock( this.enterMode == CKEDITOR.ENTER_DIV ? 'div' : 'p' );

						range.insertNode( range.document.createText( '' ) );

						range.select();

						break;

					}

				}

			}

		}



		if ( CKEDITOR.env.ie )

		{

			var $sel = selection.getNative();



			// Delete control selections to avoid IE bugs on pasteHTML.

			if ( $sel.type == 'Control' )

				$sel.clear();

			else if ( selection.getType() == CKEDITOR.SELECTION_TEXT )

			{

				// Due to IE bugs on handling contenteditable=false blocks

				// (#6005), we need to make some checks and eventually

				// delete the selection first.



				range = selection.getRanges()[ 0 ];

				var endContainer = range && range.endContainer;



				if ( endContainer &&

						endContainer.type == CKEDITOR.NODE_ELEMENT &&

						endContainer.getAttribute( 'contenteditable' ) == 'false' &&

						range.checkBoundaryOfElement( endContainer, CKEDITOR.END ) )

				{

					range.setEndAfter( range.endContainer );

					range.deleteContents();

				}

			}



			$sel.createRange().pasteHTML( data );

		}

		else

			this.document.$.execCommand( 'inserthtml', false, data );



		// Webkit does not scroll to the cursor position after pasting (#5558)

		if ( CKEDITOR.env.webkit )

		{

			selection = this.getSelection();

			selection.scrollIntoView();

		}

	}



	function doInsertText( text )

	{

		var selection = this.getSelection(),

			mode = selection.getStartElement().hasAscendant( 'pre', true ) ?

				   CKEDITOR.ENTER_BR : this.config.enterMode,

			isEnterBrMode = mode == CKEDITOR.ENTER_BR;



		var html = CKEDITOR.tools.htmlEncode( text.replace( /\r\n|\r/g, '\n' ) );



		// Convert leading and trailing whitespaces into &nbsp;

		html = html.replace( /^[ \t]+|[ \t]+$/g, function( match, offset, s )

			{

				if ( match.length == 1 )	// one space, preserve it

					return '&nbsp;';

				else if ( !offset )		// beginning of block

					return CKEDITOR.tools.repeat( '&nbsp;', match.length - 1 ) + ' ';

				else				// end of block

					return ' ' + CKEDITOR.tools.repeat( '&nbsp;', match.length - 1 );

			} );



		// Convert subsequent whitespaces into &nbsp;

		html = html.replace( /[ \t]{2,}/g, function ( match )

		   {

			   return CKEDITOR.tools.repeat( '&nbsp;', match.length - 1 ) + ' ';

		   } );



		var paragraphTag = mode == CKEDITOR.ENTER_P ? 'p' : 'div';



		// Two line-breaks create one paragraph.

		if ( !isEnterBrMode )

		{

			html = html.replace( /(\n{2})([\s\S]*?)(?:$|\1)/g,

				function( match, group1, text )

				{

					return '<'+paragraphTag + '>' + text + '</' + paragraphTag + '>';

				});

		}



		// One <br> per line-break.

		html = html.replace( /\n/g, '<br>' );



		// Compensate padding <br> for non-IE.

		if ( !( isEnterBrMode || CKEDITOR.env.ie ) )

		{

			html = html.replace( new RegExp( '<br>(?=</' + paragraphTag + '>)' ), function( match )

			{

				return CKEDITOR.tools.repeat( match, 2 );

			} );

		}



		// Inline styles have to be inherited in Firefox.

		if ( CKEDITOR.env.gecko || CKEDITOR.env.webkit )

		{

			var path = new CKEDITOR.dom.elementPath( selection.getStartElement() ),

				context = [];



			for ( var i = 0; i < path.elements.length; i++ )

			{

				var tag = path.elements[ i ].getName();

				if ( tag in CKEDITOR.dtd.$inline )

					context.unshift( path.elements[ i ].getOuterHtml().match( /^<.*?>/) );

				else if ( tag in CKEDITOR.dtd.$block )

					break;

			}



			// Reproduce the context  by preceding the pasted HTML with opening inline tags.

			html = context.join( '' ) + html;

		}



		doInsertHtml.call( this, html );

	}



	function doInsertElement( element )

	{

		var selection = this.getSelection(),

				ranges = selection.getRanges(),

				elementName = element.getName(),

				isBlock = CKEDITOR.dtd.$block[ elementName ];



		var selIsLocked = selection.isLocked;



		if ( selIsLocked )

			selection.unlock();



		var range, clone, lastElement, bookmark;



		for ( var i = ranges.length - 1 ; i >= 0 ; i-- )

		{

			range = ranges[ i ];



				if ( !range.checkReadOnly() )

				{

					// Remove the original contents, merge splitted nodes.

					range.deleteContents( 1 );



					clone = !i && element || element.clone( 1 );



					// If we're inserting a block at dtd-violated position, split

					// the parent blocks until we reach blockLimit.

					var current, dtd;

					if ( isBlock )

					{

						while ( ( current = range.getCommonAncestor( 0, 1 ) )

								&& ( dtd = CKEDITOR.dtd[ current.getName() ] )

								&& !( dtd && dtd [ elementName ] ) )

						{

							// Split up inline elements.

							if ( current.getName() in CKEDITOR.dtd.span )

								range.splitElement( current );

							// If we're in an empty block which indicate a new paragraph,

							// simply replace it with the inserting block.(#3664)

							else if ( range.checkStartOfBlock()

									&& range.checkEndOfBlock() )

							{

								range.setStartBefore( current );

								range.collapse( true );

								current.remove();

							}

							else

								range.splitBlock();

						}

					}



					// Insert the new node.

					range.insertNode( clone );



					// Save the last element reference so we can make the

					// selection later.

					if ( !lastElement )

						lastElement = clone;

				}

			}



			if ( lastElement )

			{

				range.moveToPosition( lastElement, CKEDITOR.POSITION_AFTER_END );



				// If we're inserting a block element immediately followed by

				// another block element, the selection must be optimized. (#3100,#5436,#8950)

				if ( isBlock )

				{

					var next = lastElement.getNext( notEmpty ),

						nextName = next && next.type == CKEDITOR.NODE_ELEMENT && next.getName();



					// If the next one is a text block, move cursor to the start of it's content.

					if ( nextName && CKEDITOR.dtd.$block[ nextName ] )

					{

						if ( CKEDITOR.dtd[ nextName ][ '#' ] )

							range.moveToElementEditStart( next );

						// Otherwise move cursor to the before end of the last element.

						else

							range.moveToElementEditEnd( lastElement );

					}

					// Open a new line if the block is inserted at the end of parent.

					else if ( !next )

					{

						next = range.fixBlock( true, this.config.enterMode == CKEDITOR.ENTER_DIV ? 'div' : 'p' );

						range.moveToElementEditStart( next );

					}

				}

			}



			selection.selectRanges( [ range ] );



		if ( selIsLocked )

			this.getSelection().lock();

	}



	// DOM modification here should not bother dirty flag.(#4385)

	function restoreDirty( editor )

	{

		if ( !editor.checkDirty() )

			setTimeout( function(){ editor.resetDirty(); }, 0 );

	}



	var isNotWhitespace = CKEDITOR.dom.walker.whitespaces( true ),

		isNotBookmark = CKEDITOR.dom.walker.bookmark( false, true );



	function isNotEmpty( node )

	{

		return isNotWhitespace( node ) && isNotBookmark( node );

	}



	function isNbsp( node )

	{

		return node.type == CKEDITOR.NODE_TEXT

			   && CKEDITOR.tools.trim( node.getText() ).match( /^(?:&nbsp;|\xa0)$/ );

	}



	function restoreSelection( selection )

	{

		if ( selection.isLocked )

		{

			selection.unlock();

			setTimeout( function() { selection.lock(); }, 0 );

		}

	}



	function isBlankParagraph( block )

	{

		return block.getOuterHtml().match( emptyParagraphRegexp );

	}



	isNotWhitespace = CKEDITOR.dom.walker.whitespaces( true );



	// Gecko need a key event to 'wake up' the editing

	// ability when document is empty.(#3864, #5781)

	function activateEditing( editor )

	{

		var win = editor.window,

			doc = editor.document,

			body = editor.document.getBody(),

			bodyFirstChild = body.getFirst(),

			bodyChildsNum = body.getChildren().count();



		if ( !bodyChildsNum

			|| bodyChildsNum == 1

				&& bodyFirstChild.type == CKEDITOR.NODE_ELEMENT

				&& bodyFirstChild.hasAttribute( '_moz_editor_bogus_node' ) )

		{

			restoreDirty( editor );



			// Memorize scroll position to restore it later (#4472).

			var hostDocument = editor.element.getDocument();

			var hostDocumentElement = hostDocument.getDocumentElement();

			var scrollTop = hostDocumentElement.$.scrollTop;

			var scrollLeft = hostDocumentElement.$.scrollLeft;



			// Simulating keyboard character input by dispatching a keydown of white-space text.

			var keyEventSimulate = doc.$.createEvent( "KeyEvents" );

			keyEventSimulate.initKeyEvent( 'keypress', true, true, win.$, false,

				false, false, false, 0, 32 );

			doc.$.dispatchEvent( keyEventSimulate );



			if ( scrollTop != hostDocumentElement.$.scrollTop || scrollLeft != hostDocumentElement.$.scrollLeft )

				hostDocument.getWindow().$.scrollTo( scrollLeft, scrollTop );



			// Restore the original document status by placing the cursor before a bogus br created (#5021).

			bodyChildsNum && body.getFirst().remove();

			doc.getBody().appendBogus();

			var nativeRange = new CKEDITOR.dom.range( doc );

			nativeRange.setStartAt( body , CKEDITOR.POSITION_AFTER_START );

			nativeRange.select();

		}

	}



	/**

	 *  Auto-fixing block-less content by wrapping paragraph (#3190), prevent

	 *  non-exitable-block by padding extra br.(#3189)

	 */

	function onSelectionChangeFixBody( evt )

	{

		var editor = evt.editor,

			path = evt.data.path,

			blockLimit = path.blockLimit,

			selection = evt.data.selection,

			range = selection.getRanges()[0],

			body = editor.document.getBody(),

			enterMode = editor.config.enterMode;



		if ( CKEDITOR.env.gecko )

		{

			activateEditing( editor );



			// Ensure bogus br could help to move cursor (out of styles) to the end of block. (#7041)

			var pathBlock = path.block || path.blockLimit,

				lastNode = pathBlock && pathBlock.getLast( isNotEmpty );



			// Check some specialities of the current path block:

			// 1. It is really displayed as block; (#7221)

			// 2. It doesn't end with one inner block; (#7467)

			// 3. It doesn't have bogus br yet.

			if ( pathBlock

					&& pathBlock.isBlockBoundary()

					&& !( lastNode && lastNode.type == CKEDITOR.NODE_ELEMENT && lastNode.isBlockBoundary() )

					&& !pathBlock.is( 'pre' )

					&& !pathBlock.getBogus() )

			{

				pathBlock.appendBogus();

			}

		}



		// When we're in block enter mode, a new paragraph will be established

		// to encapsulate inline contents right under body. (#3657)

		if ( editor.config.autoParagraph !== false

				&& enterMode != CKEDITOR.ENTER_BR

				&& range.collapsed

				&& blockLimit.getName() == 'body'

				&& !path.block )

		{

			var fixedBlock = range.fixBlock( true,

					editor.config.enterMode == CKEDITOR.ENTER_DIV ? 'div' : 'p'  );



			// For IE, we should remove any filler node which was introduced before.

			if ( CKEDITOR.env.ie )

			{

				var first = fixedBlock.getFirst( isNotEmpty );

				first && isNbsp( first ) && first.remove();

			}



			// If the fixed block is actually blank and is already followed by an exitable blank

			// block, we should revert the fix and move into the existed one. (#3684)

			if ( isBlankParagraph( fixedBlock ) )

			{

				var element = fixedBlock.getNext( isNotWhitespace );

				if ( element &&

					 element.type == CKEDITOR.NODE_ELEMENT &&

					 !nonEditable( element ) )

				{

					range.moveToElementEditStart( element );

					fixedBlock.remove();

				}

				else

				{

					element = fixedBlock.getPrevious( isNotWhitespace );

					if ( element &&

						 element.type == CKEDITOR.NODE_ELEMENT &&

						 !nonEditable( element ) )

					{

						range.moveToElementEditEnd( element );

						fixedBlock.remove();

					}

				}

			}



			range.select();

			// Cancel this selection change in favor of the next (correct).  (#6811)

			evt.cancel();

		}



		// Browsers are incapable of moving cursor out of certain block elements (e.g. table, div, pre)

		// at the end of document, makes it unable to continue adding content, we have to make this

		// easier by opening an new empty paragraph.

		var testRange = new CKEDITOR.dom.range( editor.document );

		testRange.moveToElementEditEnd( editor.document.getBody() );

		var testPath = new CKEDITOR.dom.elementPath( testRange.startContainer );

		if ( !testPath.blockLimit.is( 'body') )

		{

			var paddingBlock;

			if ( enterMode != CKEDITOR.ENTER_BR )

				paddingBlock = body.append( editor.document.createElement( enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' ) );

			else

				paddingBlock = body;



			if ( !CKEDITOR.env.ie )

				paddingBlock.appendBogus();

		}

	}



	CKEDITOR.plugins.add( 'wysiwygarea',

	{

		requires : [ 'editingblock' ],



		init : function( editor )

		{

			var fixForBody = ( editor.config.enterMode != CKEDITOR.ENTER_BR && editor.config.autoParagraph !== false )

				? editor.config.enterMode == CKEDITOR.ENTER_DIV ? 'div' : 'p' : false;



			var frameLabel = editor.lang.editorTitle.replace( '%1', editor.name ),

				frameDesc = editor.lang.editorHelp;



			if ( CKEDITOR.env.ie )

				frameLabel += ', ' + frameDesc;



			var win = CKEDITOR.document.getWindow();

			var contentDomReadyHandler;

			editor.on( 'editingBlockReady', function()

				{

					var mainElement,

						iframe,

						isLoadingData,

						isPendingFocus,

						frameLoaded,

						fireMode,

						onResize;





					// Support for custom document.domain in IE.

					var isCustomDomain = CKEDITOR.env.isCustomDomain();



					// Creates the iframe that holds the editable document.

					var createIFrame = function( data )

					{

						if ( iframe )

							iframe.remove();



						var src =

							'document.open();' +



							// The document domain must be set any time we

							// call document.open().

							( isCustomDomain ? ( 'document.domain="' + document.domain + '";' ) : '' ) +



							'document.close();';



						// With IE, the custom domain has to be taken care at first,

						// for other browers, the 'src' attribute should be left empty to

						// trigger iframe's 'load' event.

  						src =

							CKEDITOR.env.air ?

								'javascript:void(0)' :

							CKEDITOR.env.ie ?

								'javascript:void(function(){' + encodeURIComponent( src ) + '}())'

							:

								'';



						var labelId = CKEDITOR.tools.getNextId();

						iframe = CKEDITOR.dom.element.createFromHtml( '<iframe' +

  							' style="width:100%;height:100%"' +

  							' frameBorder="0"' +

  							' aria-describedby="' + labelId + '"' +

							' title="' + frameLabel + '"' +

  							' src="' + src + '"' +

							' tabIndex="' + ( CKEDITOR.env.webkit? -1 : editor.tabIndex ) + '"' +

  							' allowTransparency="true"' +

  							'></iframe>' );



						// Running inside of Firefox chrome the load event doesn't bubble like in a normal page (#5689)

						if ( document.location.protocol == 'chrome:' )

							CKEDITOR.event.useCapture = true;



						// With FF, it's better to load the data on iframe.load. (#3894,#4058)

						iframe.on( 'load', function( ev )

							{

								frameLoaded = 1;

								ev.removeListener();



								var doc = iframe.getFrameDocument();

								doc.write( data );



								CKEDITOR.env.air && contentDomReady( doc.getWindow().$ );

							});



						// Reset adjustment back to default (#5689)

						if ( document.location.protocol == 'chrome:' )

							CKEDITOR.event.useCapture = false;



						mainElement.append( CKEDITOR.dom.element.createFromHtml(

							'<span id="' + labelId + '" class="cke_voice_label">' + frameDesc + '</span>'));



						mainElement.append( iframe );



						// Webkit: iframe size doesn't auto fit well. (#7360)

						if ( CKEDITOR.env.webkit )

						{

							onResize = function()

							{

								// Hide the iframe to get real size of the holder. (#8941)

								mainElement.setStyle( 'width', '100%' );

								iframe.hide();



								iframe.setSize( 'width', mainElement.getSize( 'width' ) );

								mainElement.removeStyle( 'width' );

								iframe.show();

							};



							win.on( 'resize', onResize );

						}

					};



					// The script that launches the bootstrap logic on 'domReady', so the document

					// is fully editable even before the editing iframe is fully loaded (#4455).

					contentDomReadyHandler = CKEDITOR.tools.addFunction( contentDomReady );

					var activationScript =

						'<script id="cke_actscrpt" type="text/javascript" data-cke-temp="1">' +

							( isCustomDomain ? ( 'document.domain="' + document.domain + '";' ) : '' ) +

							'window.parent.CKEDITOR.tools.callFunction( ' + contentDomReadyHandler + ', window );' +

						'</script>';



					// Editing area bootstrap code.

					function contentDomReady( domWindow )

					{

						if ( !frameLoaded )

							return;

						frameLoaded = 0;



						editor.fire( 'ariaWidget', iframe );



						var domDocument = domWindow.document,

							body = domDocument.body;



						// Remove this script from the DOM.

						var script = domDocument.getElementById( "cke_actscrpt" );

						script && script.parentNode.removeChild( script );



						body.spellcheck = !editor.config.disableNativeSpellChecker;



						var editable = !editor.readOnly;



						if ( CKEDITOR.env.ie )

						{

							// Don't display the focus border.

							body.hideFocus = true;



							// Disable and re-enable the body to avoid IE from

							// taking the editing focus at startup. (#141 / #523)

							body.disabled = true;

							body.contentEditable = editable;

							body.removeAttribute( 'disabled' );

						}

						else

						{

							// Avoid opening design mode in a frame window thread,

							// which will cause host page scrolling.(#4397)

							setTimeout( function()

							{

								// Prefer 'contentEditable' instead of 'designMode'. (#3593)

								if ( CKEDITOR.env.gecko && CKEDITOR.env.version >= 10900

										|| CKEDITOR.env.opera )

									domDocument.$.body.contentEditable = editable;

								else if ( CKEDITOR.env.webkit )

									domDocument.$.body.parentNode.contentEditable = editable;

								else

									domDocument.$.designMode = editable? 'off' : 'on';

							}, 0 );

						}



						editable && CKEDITOR.env.gecko && CKEDITOR.tools.setTimeout( activateEditing, 0, null, editor );



						domWindow	= editor.window	= new CKEDITOR.dom.window( domWindow );

						domDocument	= editor.document	= new CKEDITOR.dom.document( domDocument );



						editable && domDocument.on( 'dblclick', function( evt )

						{

							var element = evt.data.getTarget(),

								data = { element : element, dialog : '' };

							editor.fire( 'doubleclick', data );

							data.dialog && editor.openDialog( data.dialog );

						});



						// Prevent automatic submission in IE #6336

						CKEDITOR.env.ie && domDocument.on( 'click', function( evt )

						{

							var element = evt.data.getTarget();

							if ( element.is( 'input' ) )

							{

								var type = element.getAttribute( 'type' );

								if ( type == 'submit' || type == 'reset' )

									evt.data.preventDefault();

							}

						});



						// Gecko/Webkit need some help when selecting control type elements. (#3448)

						if ( !( CKEDITOR.env.ie || CKEDITOR.env.opera ) )

						{

							domDocument.on( 'mousedown', function( ev )

							{

								var control = ev.data.getTarget();

								if ( control.is( 'img', 'hr', 'input', 'textarea', 'select' ) )

									editor.getSelection().selectElement( control );

							} );

						}



						if ( CKEDITOR.env.gecko )

						{

							domDocument.on( 'mouseup', function( ev )

							{

								if ( ev.data.$.button == 2 )

								{

									var target = ev.data.getTarget();



									// Prevent right click from selecting an empty block even

									// when selection is anchored inside it. (#5845)

									if ( !target.getOuterHtml().replace( emptyParagraphRegexp, '' ) )

									{

										var range = new CKEDITOR.dom.range( domDocument );

										range.moveToElementEditStart( target );

										range.select( true );

									}

								}

							} );

						}



						// Prevent the browser opening links in read-only blocks. (#6032)

						domDocument.on( 'click', function( ev )

							{

								ev = ev.data;

								if ( ev.getTarget().is( 'a' ) && ev.$.button != 2 )

									ev.preventDefault();

							});



						// Webkit: avoid from editing form control elements content.

						if ( CKEDITOR.env.webkit )

						{

							// Mark that cursor will right blinking (#7113).

							domDocument.on( 'mousedown', function() { wasFocused = 1; } );

							// Prevent from tick checkbox/radiobox/select

							domDocument.on( 'click', function( ev )

							{

								if ( ev.data.getTarget().is( 'input', 'select' ) )

									ev.data.preventDefault();

							} );



							// Prevent from editig textfield/textarea value.

							domDocument.on( 'mouseup', function( ev )

							{

								if ( ev.data.getTarget().is( 'input', 'textarea' ) )

									ev.data.preventDefault();

							} );

						}



						var focusTarget = CKEDITOR.env.ie ? iframe : domWindow;

						focusTarget.on( 'blur', function()

							{

								editor.focusManager.blur();

							});



						var wasFocused;



						focusTarget.on( 'focus', function()

							{

								var doc = editor.document;



								if ( CKEDITOR.env.gecko || CKEDITOR.env.opera )

									doc.getBody().focus();

								// Webkit needs focus for the first time on the HTML element. (#6153)

								else if ( CKEDITOR.env.webkit )

								{

									if ( !wasFocused )

									{

										editor.document.getDocumentElement().focus();

										wasFocused = 1;

									}

								}



								editor.focusManager.focus();

							});



						var keystrokeHandler = editor.keystrokeHandler;

						// Prevent backspace from navigating off the page.

						keystrokeHandler.blockedKeystrokes[ 8 ] = !editable;

						keystrokeHandler.attach( domDocument );



						domDocument.getDocumentElement().addClass( domDocument.$.compatMode );

						// Override keystroke behaviors.

						editable && domDocument.on( 'keydown', function( evt )

						{

							var keyCode = evt.data.getKeystroke();



							// Backspace OR Delete.

							if ( keyCode in { 8 : 1, 46 : 1 } )

							{

								var sel = editor.getSelection(),

									selected = sel.getSelectedElement(),

									range = sel.getRanges()[ 0 ],

									path = new CKEDITOR.dom.elementPath( range.startContainer ),

									block,

									parent,

									next,

									rtl = keyCode == 8;



								// Override keystrokes which should have deletion behavior

								//  on fully selected element . (#4047) (#7645)

								if ( selected )

								{

									// Make undo snapshot.

									editor.fire( 'saveSnapshot' );



									// Delete any element that 'hasLayout' (e.g. hr,table) in IE8 will

									// break up the selection, safely manage it here. (#4795)

									range.moveToPosition( selected, CKEDITOR.POSITION_BEFORE_START );

									// Remove the control manually.

									selected.remove();

									range.select();



									editor.fire( 'saveSnapshot' );



									evt.data.preventDefault();

								}

								else

								{

									// Handle the following special cases: (#6217)

									// 1. Del/Backspace key before/after table;

									// 2. Backspace Key after start of table.

									if ( ( block = path.block ) &&

										 range[ rtl ? 'checkStartOfBlock' : 'checkEndOfBlock' ]() &&

										 ( next = block[ rtl ? 'getPrevious' : 'getNext' ]( notWhitespaceEval ) ) &&

										 next.is( 'table' ) )

									{

										editor.fire( 'saveSnapshot' );



										// Remove the current empty block.

										if ( range[ rtl ? 'checkEndOfBlock' : 'checkStartOfBlock' ]() )

											block.remove();



										// Move cursor to the beginning/end of table cell.

										range[ 'moveToElementEdit' + ( rtl ? 'End' : 'Start' ) ]( next );

										range.select();



										editor.fire( 'saveSnapshot' );



										evt.data.preventDefault();

									}

									else if ( path.blockLimit.is( 'td' ) &&

											  ( parent = path.blockLimit.getAscendant( 'table' ) ) &&

											  range.checkBoundaryOfElement( parent, rtl ? CKEDITOR.START : CKEDITOR.END ) &&

											  ( next = parent[ rtl ? 'getPrevious' : 'getNext' ]( notWhitespaceEval ) ) )

									{

										editor.fire( 'saveSnapshot' );



										// Move cursor to the end of previous block.

										range[ 'moveToElementEdit' + ( rtl ? 'End' : 'Start' ) ]( next );



										// Remove any previous empty block.

										if ( range.checkStartOfBlock() && range.checkEndOfBlock() )

											next.remove();

										else

											range.select();



										editor.fire( 'saveSnapshot' );



										evt.data.preventDefault();

									}



								}

							}



							// PageUp OR PageDown

							if ( keyCode == 33 || keyCode == 34 )

							{

								if ( CKEDITOR.env.gecko )

								{

									var body = domDocument.getBody();



									// Page up/down cause editor selection to leak

									// outside of editable thus we try to intercept

									// the behavior, while it affects only happen

									// when editor contents are not overflowed. (#7955)

									if ( domWindow.$.innerHeight > body.$.offsetHeight )

									{

										range = new CKEDITOR.dom.range( domDocument );

										range[ keyCode == 33 ? 'moveToElementEditStart' : 'moveToElementEditEnd']( body );

										range.select();

										evt.data.preventDefault();

									}

								}



							}

						} );



						// PageUp/PageDown scrolling is broken in document

						// with standard doctype, manually fix it. (#4736)

						if ( CKEDITOR.env.ie && domDocument.$.compatMode == 'CSS1Compat' )

						{

							var pageUpDownKeys = { 33 : 1, 34 : 1 };

							domDocument.on( 'keydown', function( evt )

							{

								if ( evt.data.getKeystroke() in pageUpDownKeys )

								{

									setTimeout( function ()

									{

										editor.getSelection().scrollIntoView();

									}, 0 );

								}

							} );

						}



						// Prevent IE from leaving new paragraph after deleting all contents in body. (#6966)

						if ( CKEDITOR.env.ie && editor.config.enterMode != CKEDITOR.ENTER_P )

						{

							domDocument.on( 'selectionchange', function()

							{

								var body = domDocument.getBody(),

									sel = editor.getSelection(),

									range = sel && sel.getRanges()[ 0 ];



								if ( range && body.getHtml().match( /^<p>&nbsp;<\/p>$/i )

									&& range.startContainer.equals( body ) )

								{

									// Avoid the ambiguity from a real user cursor position.

									setTimeout( function ()

									{

										range = editor.getSelection().getRanges()[ 0 ];

										if ( !range.startContainer.equals ( 'body' ) )

										{

											body.getFirst().remove( 1 );

											range.moveToElementEditEnd( body );

											range.select( 1 );

										}

									}, 0 );

								}

							});

						}



						// Adds the document body as a context menu target.

						if ( editor.contextMenu )

							editor.contextMenu.addTarget( domDocument, editor.config.browserContextMenuOnCtrl !== false );



						setTimeout( function()

							{

								editor.fire( 'contentDom' );



								if ( fireMode )

								{

									editor.mode = 'wysiwyg';

									editor.fire( 'mode', { previousMode : editor._.previousMode } );

									fireMode = false;

								}



								isLoadingData = false;



								if ( isPendingFocus )

								{

									editor.focus();

									isPendingFocus = false;

								}

								setTimeout( function()

								{

									editor.fire( 'dataReady' );

								}, 0 );



								// Enable dragging of position:absolute elements in IE.

								try { editor.document.$.execCommand ( '2D-position', false, true); } catch(e) {}



								// IE, Opera and Safari may not support it and throw errors.

								try { editor.document.$.execCommand( 'enableInlineTableEditing', false, !editor.config.disableNativeTableHandles ); } catch(e) {}

								if ( editor.config.disableObjectResizing )

								{

									try

									{

										editor.document.$.execCommand( 'enableObjectResizing', false, false );

									}

									catch(e)

									{

										// For browsers in which the above method failed, we can cancel the resizing on the fly (#4208)

										editor.document.getBody().on( CKEDITOR.env.ie ? 'resizestart' : 'resize', function( evt )

										{

											evt.data.preventDefault();

										});

									}

								}



								/*

								 * IE BUG: IE might have rendered the iframe with invisible contents.

								 * (#3623). Push some inconsequential CSS style changes to force IE to

								 * refresh it.

								 *

								 * Also, for some unknown reasons, short timeouts (e.g. 100ms) do not

								 * fix the problem. :(

								 */

								if ( CKEDITOR.env.ie )

								{

									setTimeout( function()

										{

											if ( editor.document )

											{

												var $body = editor.document.$.body;

												$body.runtimeStyle.marginBottom = '0px';

												$body.runtimeStyle.marginBottom = '';

											}

										}, 1000 );

								}

							},

							0 );

					}



					editor.addMode( 'wysiwyg',

						{

							load : function( holderElement, data, isSnapshot )

							{

								mainElement = holderElement;



								if ( CKEDITOR.env.ie && CKEDITOR.env.quirks )

									holderElement.setStyle( 'position', 'relative' );



								// The editor data "may be dirty" after this

								// point.

								editor.mayBeDirty = true;



								fireMode = true;



								if ( isSnapshot )

									this.loadSnapshotData( data );

								else

									this.loadData( data );

							},



							loadData : function( data )

							{

								isLoadingData = true;

								editor._.dataStore = { id : 1 };



								var config = editor.config,

									fullPage = config.fullPage,

									docType = config.docType;



								// Build the additional stuff to be included into <head>.

								var headExtra =

									'<style type="text/css" data-cke-temp="1">' +

										editor._.styles.join( '\n' ) +

									'</style>';



								!fullPage && ( headExtra =

									CKEDITOR.tools.buildStyleHtml( editor.config.contentsCss ) +

									headExtra );



								var baseTag = config.baseHref ? '<base href="' + config.baseHref + '" data-cke-temp="1" />' : '';



								if ( fullPage )

								{

									// Search and sweep out the doctype declaration.

									data = data.replace( /<!DOCTYPE[^>]*>/i, function( match )

										{

											editor.docType = docType = match;

											return '';

										}).replace( /<\?xml\s[^\?]*\?>/i, function( match )

										{

											editor.xmlDeclaration = match;

											return '';

										});

								}



								// Get the HTML version of the data.

								if ( editor.dataProcessor )

									data = editor.dataProcessor.toHtml( data, fixForBody );



								if ( fullPage )

								{

									// Check if the <body> tag is available.

									if ( !(/<body[\s|>]/).test( data ) )

										data = '<body>' + data;



									// Check if the <html> tag is available.

									if ( !(/<html[\s|>]/).test( data ) )

										data = '<html>' + data + '</html>';



									// Check if the <head> tag is available.

									if ( !(/<head[\s|>]/).test( data ) )

										data = data.replace( /<html[^>]*>/, '$&<head><title></title></head>' ) ;

									else if ( !(/<title[\s|>]/).test( data ) )

										data = data.replace( /<head[^>]*>/, '$&<title></title>' ) ;



									// The base must be the first tag in the HEAD, e.g. to get relative

									// links on styles.

									baseTag && ( data = data.replace( /<head>/, '$&' + baseTag ) );



									// Inject the extra stuff into <head>.

									// Attention: do not change it before testing it well. (V2)

									// This is tricky... if the head ends with <meta ... content type>,

									// Firefox will break. But, it works if we place our extra stuff as

									// the last elements in the HEAD.

									data = data.replace( /<\/head\s*>/, headExtra + '$&' );



									// Add the DOCTYPE back to it.

									data = docType + data;

								}

								else

								{

									data =

										config.docType +

										'<html dir="' + config.contentsLangDirection + '"' +

											' lang="' + ( config.contentsLanguage || editor.langCode ) + '">' +

										'<head>' +

											'<title>' + frameLabel + '</title>' +

											baseTag +

											headExtra +

										'</head>' +

										'<body' + ( config.bodyId ? ' id="' + config.bodyId + '"' : '' ) +

												  ( config.bodyClass ? ' class="' + config.bodyClass + '"' : '' ) +

												  '>' +

											data +

										'</html>';

								}



								// Distinguish bogus to normal BR at the end of document for Mozilla. (#5293).

								if ( CKEDITOR.env.gecko )

									data = data.replace( /<br \/>(?=\s*<\/(:?html|body)>)/, '$&<br type="_moz" />' );



								data += activationScript;





								// The iframe is recreated on each call of setData, so we need to clear DOM objects

								this.onDispose();

								createIFrame( data );

							},



							getData : function()

							{

								var config = editor.config,

									fullPage = config.fullPage,

									docType = fullPage && editor.docType,

									xmlDeclaration = fullPage && editor.xmlDeclaration,

									doc = iframe.getFrameDocument();



								var data = fullPage

									? doc.getDocumentElement().getOuterHtml()

									: doc.getBody().getHtml();



								// BR at the end of document is bogus node for Mozilla. (#5293).

								if ( CKEDITOR.env.gecko )

									data = data.replace( /<br>(?=\s*(:?$|<\/body>))/, '' );



								if ( editor.dataProcessor )

									data = editor.dataProcessor.toDataFormat( data, fixForBody );



								// Reset empty if the document contains only one empty paragraph.

								if ( config.ignoreEmptyParagraph )

									data = data.replace( emptyParagraphRegexp, function( match, lookback ) { return lookback; } );



								if ( xmlDeclaration )

									data = xmlDeclaration + '\n' + data;

								if ( docType )

									data = docType + '\n' + data;



								return data;

							},



							getSnapshotData : function()

							{

								return iframe.getFrameDocument().getBody().getHtml();

							},



							loadSnapshotData : function( data )

							{

								iframe.getFrameDocument().getBody().setHtml( data );

							},



							onDispose : function()

							{

								if ( !editor.document )

									return;



								editor.document.getDocumentElement().clearCustomData();

								editor.document.getBody().clearCustomData();



								editor.window.clearCustomData();

								editor.document.clearCustomData();



								iframe.clearCustomData();



								/*

								* IE BUG: When destroying editor DOM with the selection remains inside

								* editing area would break IE7/8's selection system, we have to put the editing

								* iframe offline first. (#3812 and #5441)

								*/

								iframe.remove();

							},



							unload : function( holderElement )

							{

								this.onDispose();



								if ( onResize )

									win.removeListener( 'resize', onResize );



								editor.window = editor.document = iframe = mainElement = isPendingFocus = null;



								editor.fire( 'contentDomUnload' );

							},



							focus : function()

							{

								var win = editor.window;



								if ( isLoadingData )

									isPendingFocus = true;

								else if ( win )

								{

									var sel = editor.getSelection(),

										ieSel = sel && sel.getNative();



									// IE considers control-type element as separate

									// focus host when selected, avoid destroying the

									// selection in such case. (#5812) (#8949)

									if ( ieSel && ieSel.type == 'Control' )

										return;



									// AIR needs a while to focus when moving from a link.

									CKEDITOR.env.air ? setTimeout( function () { win.focus(); }, 0 ) : win.focus();

									editor.selectionChange();

								}

							}

						});



					editor.on( 'insertHtml', onInsert( doInsertHtml ) , null, null, 20 );

					editor.on( 'insertElement', onInsert( doInsertElement ), null, null, 20 );

					editor.on( 'insertText', onInsert( doInsertText ), null, null, 20 );

					// Auto fixing on some document structure weakness to enhance usabilities. (#3190 and #3189)

					editor.on( 'selectionChange', function( evt )

					{

						if ( editor.readOnly )

							return;



						var sel = editor.getSelection();

						// Do it only when selection is not locked. (#8222)

						if ( sel && !sel.isLocked )

						{

							var isDirty = editor.checkDirty();

							editor.fire( 'saveSnapshot', { contentOnly : 1 } );

							onSelectionChangeFixBody.call( this, evt );

							editor.fire( 'updateSnapshot' );

							!isDirty && editor.resetDirty();

						}



					}, null, null, 1 );

				});



			editor.on( 'contentDom', function()

				{

					var title = editor.document.getElementsByTag( 'title' ).getItem( 0 );

					title.data( 'cke-title', editor.document.$.title );



					// [IE] JAWS will not recognize the aria label we used on the iframe

					// unless the frame window title string is used as the voice label,

					// backup the original one and restore it on output.

					CKEDITOR.env.ie && ( editor.document.$.title = frameLabel );

				});



			editor.on( 'readOnly', function()

				{

					if ( editor.mode == 'wysiwyg' )

					{

						// Symply reload the wysiwyg area. It'll take care of read-only.

						var wysiwyg = editor.getMode();

						wysiwyg.loadData( wysiwyg.getData() );

					}

				});



			// IE>=8 stricts mode doesn't have 'contentEditable' in effect

			// on element unless it has layout. (#5562)

			if ( CKEDITOR.document.$.documentMode >= 8 )

			{

				editor.addCss( 'html.CSS1Compat [contenteditable=false]{ min-height:0 !important;}' );



				var selectors = [];

				for ( var tag in CKEDITOR.dtd.$removeEmpty )

					selectors.push( 'html.CSS1Compat ' + tag + '[contenteditable=false]' );

				editor.addCss( selectors.join( ',' ) + '{ display:inline-block;}' );

			}

			// Set the HTML style to 100% to have the text cursor in affect (#6341)

			else if ( CKEDITOR.env.gecko )

			{

				editor.addCss( 'html { height: 100% !important; }' );

				editor.addCss( 'img:-moz-broken { -moz-force-broken-image-icon : 1;	min-width : 24px; min-height : 24px; }' );

			}

			// Remove the margin to avoid mouse confusion. (#8835)

			else if ( CKEDITOR.env.ie && CKEDITOR.env.version < 8 && editor.config.contentsLangDirection == 'ltr' )

				editor.addCss( 'body{margin-right:0;}' );



			/* #3658: [IE6] Editor document has horizontal scrollbar on long lines

			To prevent this misbehavior, we show the scrollbar always */

			/* #6341: The text cursor must be set on the editor area. */

			/* #6632: Avoid having "text" shape of cursor in IE7 scrollbars.*/

			editor.addCss( 'html {	_overflow-y: scroll; cursor: text;	*cursor:auto;}' );

			// Use correct cursor for these elements

			editor.addCss( 'img, input, textarea { cursor: default;}' );



			// Disable form elements editing mode provided by some browers. (#5746)

			editor.on( 'insertElement', function ( evt )

			{

				var element = evt.data;

				if ( element.type == CKEDITOR.NODE_ELEMENT

						&& ( element.is( 'input' ) || element.is( 'textarea' ) ) )

				{

					// We should flag that the element was locked by our code so

					// it'll be editable by the editor functions (#6046).

					var readonly = element.getAttribute( 'contenteditable' ) == 'false';

					if ( !readonly )

					{

						element.data( 'cke-editable', element.hasAttribute( 'contenteditable' ) ? 'true' : '1' );

						element.setAttribute( 'contenteditable', false );

					}

				}

			});



		}

	});



	// Fixing Firefox 'Back-Forward Cache' break design mode. (#4514)

	if ( CKEDITOR.env.gecko )

	{

		(function()

		{

			var body = document.body;



			if ( !body )

				window.addEventListener( 'load', arguments.callee, false );

			else

			{

				var currentHandler = body.getAttribute( 'onpageshow' );

				body.setAttribute( 'onpageshow', ( currentHandler ? currentHandler + ';' : '') +

							'event.persisted && (function(){' +

								'var allInstances = CKEDITOR.instances, editor, doc;' +

								'for ( var i in allInstances )' +

								'{' +

								'	editor = allInstances[ i ];' +

								'	doc = editor.document;' +

								'	if ( doc )' +

								'	{' +

								'		doc.$.designMode = "off";' +

								'		doc.$.designMode = "on";' +

								'	}' +

								'}' +

						'})();' );

			}

		} )();



	}

})();



/**

 * Disables the ability of resize objects (image and tables) in the editing

 * area.

 * @type Boolean

 * @default false

 * @example

 * config.disableObjectResizing = true;

 */

CKEDITOR.config.disableObjectResizing = false;



/**

 * Disables the "table tools" offered natively by the browser (currently

 * Firefox only) to make quick table editing operations, like adding or

 * deleting rows and columns.

 * @type Boolean

 * @default true

 * @example

 * config.disableNativeTableHandles = false;

 */

CKEDITOR.config.disableNativeTableHandles = true;



/**

 * Disables the built-in words spell checker if browser provides one.<br /><br />

 *

 * <strong>Note:</strong> Although word suggestions provided by browsers (natively) will not appear in CKEditor's default context menu,

 * users can always reach the native context menu by holding the <em>Ctrl</em> key when right-clicking if {@link CKEDITOR.config.browserContextMenuOnCtrl}

 * is enabled or you're simply not using the context menu plugin.

 *

 * @type Boolean

 * @default true

 * @example

 * config.disableNativeSpellChecker = false;

 */

CKEDITOR.config.disableNativeSpellChecker = true;



/**

 * Whether the editor must output an empty value ("") if it's contents is made

 * by an empty paragraph only.

 * @type Boolean

 * @default true

 * @example

 * config.ignoreEmptyParagraph = false;

 */

CKEDITOR.config.ignoreEmptyParagraph = true;



/**

 * Fired when data is loaded and ready for retrieval in an editor instance.

 * @name CKEDITOR.editor#dataReady

 * @event

 */



/**

 * Whether automatically create wrapping blocks around inline contents inside document body,

 * this helps to ensure the integrality of the block enter mode.

 * <strong>Note:</strong> Changing the default value might introduce unpredictable usability issues.

 * @name CKEDITOR.config.autoParagraph

 * @since 3.6

 * @type Boolean

 * @default true

 * @example

 * config.autoParagraph = false;

 */



/**

 * Fired when some elements are added to the document

 * @name CKEDITOR.editor#ariaWidget

 * @event

 * @param {Object} element The element being added

 */

