/* Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved. For licensing, see LICENSE.html or http://ckeditor.com/license */ (function() { // Regex to scan for   at the end of blocks, which are actually placeholders. // Safari transforms the   to \xa0. (#4172) var tailNbspRegex = /^[\t\r\n ]*(?: |\xa0)$/; var protectedSourceMarker = '{cke_protected}'; // Return the last non-space child node of the block (#4344). function lastNoneSpaceChild( block ) { var lastIndex = block.children.length, last = block.children[ lastIndex - 1 ]; while ( last && last.type == CKEDITOR.NODE_TEXT && !CKEDITOR.tools.trim( last.value ) ) last = block.children[ --lastIndex ]; return last; } function trimFillers( block, fromSource ) { // If the current node is a block, and if we're converting from source or // we're not in IE then search for and remove any tailing BR node. // // Also, any   at the end of blocks are fillers, remove them as well. // (#2886) var children = block.children, lastChild = lastNoneSpaceChild( block ); if ( lastChild ) { if ( ( fromSource || !CKEDITOR.env.ie ) && lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br' ) children.pop(); if ( lastChild.type == CKEDITOR.NODE_TEXT && tailNbspRegex.test( lastChild.value ) ) children.pop(); } } function blockNeedsExtension( block, fromSource, extendEmptyBlock ) { if( !fromSource && ( !extendEmptyBlock || typeof extendEmptyBlock == 'function' && ( extendEmptyBlock( block ) === false ) ) ) return false; // 1. For IE version >=8, empty blocks are displayed correctly themself in wysiwiyg; // 2. For the rest, at least table cell and list item need no filler space. // (#6248) if ( fromSource && CKEDITOR.env.ie && ( document.documentMode > 7 || block.name in CKEDITOR.dtd.tr || block.name in CKEDITOR.dtd.$listItem ) ) return false; var lastChild = lastNoneSpaceChild( block ); return !lastChild || lastChild && ( lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br' // Some of the controls in form needs extension too, // to move cursor at the end of the form. (#4791) || block.name == 'form' && lastChild.name == 'input' ); } function getBlockExtension( isOutput, emptyBlockFiller ) { return function( node ) { trimFillers( node, !isOutput ); if ( blockNeedsExtension( node, !isOutput, emptyBlockFiller ) ) { if ( isOutput || CKEDITOR.env.ie ) node.add( new CKEDITOR.htmlParser.text( '\xa0' ) ); else node.add( new CKEDITOR.htmlParser.element( 'br', {} ) ); } }; } var dtd = CKEDITOR.dtd; // Define orders of table elements. var tableOrder = [ 'caption', 'colgroup', 'col', 'thead', 'tfoot', 'tbody' ]; // Find out the list of block-like tags that can contain
. var blockLikeTags = CKEDITOR.tools.extend( {}, dtd.$block, dtd.$listItem, dtd.$tableContent ); for ( var i in blockLikeTags ) { if ( ! ( 'br' in dtd[i] ) ) delete blockLikeTags[i]; } // We just avoid filler in
 right now.
	// TODO: Support filler for 
, line break is also occupy line height.
	delete blockLikeTags.pre;
	var defaultDataFilterRules =
	{
		elements : {},
		attributeNames :
		[
			// Event attributes (onXYZ) must not be directly set. They can become
			// active in the editing area (IE|WebKit).
			[ ( /^on/ ), 'data-cke-pa-on' ]
		]
	};

	var defaultDataBlockFilterRules = { elements : {} };

	for ( i in blockLikeTags )
		defaultDataBlockFilterRules.elements[ i ] = getBlockExtension();

	var defaultHtmlFilterRules =
		{
			elementNames :
			[
				// Remove the "cke:" namespace prefix.
				[ ( /^cke:/ ), '' ],

				// Ignore  tags.
				[ ( /^\?xml:namespace$/ ), '' ]
			],

			attributeNames :
			[
				// Attributes saved for changes and protected attributes.
				[ ( /^data-cke-(saved|pa)-/ ), '' ],

				// All "data-cke-" attributes are to be ignored.
				[ ( /^data-cke-.*/ ), '' ],

				[ 'hidefocus', '' ]
			],

			elements :
			{
				$ : function( element )
				{
					var attribs = element.attributes;

					if ( attribs )
					{
						// Elements marked as temporary are to be ignored.
						if ( attribs[ 'data-cke-temp' ] )
							return false;

						// Remove duplicated attributes - #3789.
						var attributeNames = [ 'name', 'href', 'src' ],
							savedAttributeName;
						for ( var i = 0 ; i < attributeNames.length ; i++ )
						{
							savedAttributeName = 'data-cke-saved-' + attributeNames[ i ];
							savedAttributeName in attribs && ( delete attribs[ attributeNames[ i ] ] );
						}
					}

					return element;
				},

				// The contents of table should be in correct order (#4809).
				table : function( element )
				{
					var children = element.children;
					children.sort( function ( node1, node2 )
								   {
									   return node1.type == CKEDITOR.NODE_ELEMENT && node2.type == node1.type ?
											CKEDITOR.tools.indexOf( tableOrder, node1.name )  > CKEDITOR.tools.indexOf( tableOrder, node2.name ) ? 1 : -1 : 0;
								   } );
				},

				embed : function( element )
				{
					var parent = element.parent;

					// If the  is child of a , copy the width
					// and height attributes from it.
					if ( parent && parent.name == 'object' )
					{
						var parentWidth = parent.attributes.width,
							parentHeight = parent.attributes.height;
						parentWidth && ( element.attributes.width = parentWidth );
						parentHeight && ( element.attributes.height = parentHeight );
					}
				},
				// Restore param elements into self-closing.
				param : function( param )
				{
					param.children = [];
					param.isEmpty = true;
					return param;
				},

				// Remove empty link but not empty anchor.(#3829)
				a : function( element )
				{
					if ( !( element.children.length ||
							element.attributes.name ||
							element.attributes[ 'data-cke-saved-name' ] ) )
					{
						return false;
					}
				},

				// Remove dummy span in webkit.
				span: function( element )
				{
					if ( element.attributes[ 'class' ] == 'Apple-style-span' )
						delete element.name;
				},

				// Empty 
 in IE is reported with filler node ( ).
				pre : function( element ) { CKEDITOR.env.ie && trimFillers( element ); },

				html : function( element )
				{
					delete element.attributes.contenteditable;
					delete element.attributes[ 'class' ];
				},

				body : function( element )
				{
					delete element.attributes.spellcheck;
					delete element.attributes.contenteditable;
				},

				style : function( element )
				{
					var child = element.children[ 0 ];
					child && child.value && ( child.value = CKEDITOR.tools.trim( child.value ));

					if ( !element.attributes.type )
						element.attributes.type = 'text/css';
				},

				title : function( element )
				{
					var titleText = element.children[ 0 ];
					titleText && ( titleText.value = element.attributes[ 'data-cke-title' ] || '' );
				}
			},

			attributes :
			{
				'class' : function( value, element )
				{
					// Remove all class names starting with "cke_".
					return CKEDITOR.tools.ltrim( value.replace( /(?:^|\s+)cke_[^\s]*/g, '' ) ) || false;
				}
			}
		};

	if ( CKEDITOR.env.ie )
	{
		// IE outputs style attribute in capital letters. We should convert
		// them back to lower case, while not hurting the values (#5930)
		defaultHtmlFilterRules.attributes.style = function( value, element )
		{
			return value.replace( /(^|;)([^\:]+)/g, function( match )
				{
					return match.toLowerCase();
				});
		};
	}

	function protectReadOnly( element )
	{
		var attrs = element.attributes;

		// We should flag that the element was locked by our code so
		// it'll be editable by the editor functions (#6046).
		if ( attrs.contenteditable != "false" )
			attrs[ 'data-cke-editable' ] = attrs.contenteditable ? 'true' : 1;

		attrs.contenteditable = "false";
	}
	function unprotectReadyOnly( element )
	{
		var attrs = element.attributes;
		switch( attrs[ 'data-cke-editable' ] )
		{
			case 'true':	attrs.contenteditable = 'true';	break;
			case '1':		delete attrs.contenteditable;	break;
		}
	}
	// Disable form elements editing mode provided by some browers. (#5746)
	for ( i in { input : 1, textarea : 1 } )
	{
		defaultDataFilterRules.elements[ i ] = protectReadOnly;
		defaultHtmlFilterRules.elements[ i ] = unprotectReadyOnly;
	}

	var protectElementRegex = /<(a|area|img|input)\b([^>]*)>/gi,
		protectAttributeRegex = /\b(href|src|name)\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|(?:[^ "'>]+))/gi;

	var protectElementsRegex = /(?:])[^>]*>[\s\S]*<\/style>)|(?:<(:?link|meta|base)[^>]*>)/gi,
		encodedElementsRegex = /([^<]*)<\/cke:encoded>/gi;

	var protectElementNamesRegex = /(<\/?)((?:object|embed|param|html|body|head|title)[^>]*>)/gi,
		unprotectElementNamesRegex = /(<\/?)cke:((?:html|body|head|title)[^>]*>)/gi;

	var protectSelfClosingRegex = /]*?)\/?>(?!\s*<\/cke:\1)/gi;

	function protectAttributes( html )
	{
		return html.replace( protectElementRegex, function( element, tag, attributes )
		{
			return '<' +  tag + attributes.replace( protectAttributeRegex, function( fullAttr, attrName )
			{
				// We should not rewrite the existed protected attributes, e.g. clipboard content from editor. (#5218)
				if ( attributes.indexOf( 'data-cke-saved-' + attrName ) == -1 )
					return ' data-cke-saved-' + fullAttr + ' ' + fullAttr;

				return fullAttr;
			}) + '>';
		});
	}

	function protectElements( html )
	{
		return html.replace( protectElementsRegex, function( match )
			{
				return '' + encodeURIComponent( match ) + '';
			});
	}

	function unprotectElements( html )
	{
		return html.replace( encodedElementsRegex, function( match, encoded )
			{
				return decodeURIComponent( encoded );
			});
	}

	function protectElementsNames( html )
	{
		return html.replace( protectElementNamesRegex, '$1cke:$2');
	}

	function unprotectElementNames( html )
	{
		return html.replace( unprotectElementNamesRegex, '$1$2' );
	}

	function protectSelfClosingElements( html )
	{
		return html.replace( protectSelfClosingRegex, '' );
	}

	function protectPreFormatted( html )
	{
		return html.replace( /(]*>)(\r\n|\n)/g, '$1$2$2' );
	}

	function protectRealComments( html )
	{
		return html.replace( //g, function( match )
			{
				return '';
			});
	}

	function unprotectRealComments( html )
	{
		return html.replace( //g, function( match, data )
			{
				return decodeURIComponent( data );
			});
	}

	function unprotectSource( html, editor )
	{
		var store = editor._.dataStore;

		return html.replace( //g, function( match, data )
			{
				return decodeURIComponent( data );
			}).replace( /\{cke_protected_(\d+)\}/g, function( match, id )
			{
				return store && store[ id ] || '';
			});
	}

	function protectSource( data, editor )
	{
		var protectedHtml = [],
			protectRegexes = editor.config.protectedSource,
			store = editor._.dataStore || ( editor._.dataStore = { id : 1 } ),
			tempRegex = /<\!--\{cke_temp(comment)?\}(\d*?)-->/g;

		var regexes =
			[
				// Script tags will also be forced to be protected, otherwise
				// IE will execute them.
				( //gi ),

				//