fckxhtml.js

一个用javascript写的可视化编辑器

			break ;

		// Text Node.
		case 3 :
			if ( htmlNode.parentNode && htmlNode.parentNode.nodeName.IEquals( 'pre' ) )
				return this._AppendTextNode( xmlNode, htmlNode.nodeValue ) ;
			return this._AppendTextNode( xmlNode, htmlNode.nodeValue.ReplaceNewLineChars(' ') ) ;

		// Comment
		case 8 :
			// IE catches the <!DOTYPE ... > as a comment, but it has no
			// innerHTML, so we can catch it, and ignore it.
			if ( FCKBrowserInfo.IsIE && !htmlNode.innerHTML )
				break ;

			try { xmlNode.appendChild( this.XML.createComment( htmlNode.nodeValue ) ) ; }
			catch (e) { /* Do nothing... probably this is a wrong format comment. */ }
			break ;

		// Unknown Node type.
		default :
			xmlNode.appendChild( this.XML.createComment( "Element not supported - Type: " + htmlNode.nodeType + " Name: " + htmlNode.nodeName ) ) ;
			break ;
	}
	return true ;
}

// Append an item to the SpecialBlocks array and returns the tag to be used.
FCKXHtml._AppendSpecialItem = function( item )
{
	return '___FCKsi___' + FCKXHtml.SpecialBlocks.AddItem( item ) ;
}

FCKXHtml._AppendEntity = function( xmlNode, entity )
{
	xmlNode.appendChild( this.XML.createTextNode( '#?-:' + entity + ';' ) ) ;
}

FCKXHtml._AppendTextNode = function( targetNode, textValue )
{
	var bHadText = textValue.length > 0 ;
	if ( bHadText )
		targetNode.appendChild( this.XML.createTextNode( textValue.replace( FCKXHtmlEntities.EntitiesRegex, FCKXHtml_GetEntity ) ) ) ;
	return bHadText ;
}

// Retrieves a entity (internal format) for a given character.
function FCKXHtml_GetEntity( character )
{
	// We cannot simply place the entities in the text, because the XML parser
	// will translate & to &amp;. So we use a temporary marker which is replaced
	// in the end of the processing.
	var sEntity = FCKXHtmlEntities.Entities[ character ] || ( '#' + character.charCodeAt(0) ) ;
	return '#?-:' + sEntity + ';' ;
}

// An object that hold tag specific operations.
FCKXHtml.TagProcessors =
{
	a : function( node, htmlNode )
	{
		// Firefox may create empty tags when deleting the selection in some special cases (SF-BUG 1556878).
		if ( htmlNode.innerHTML.Trim().length == 0 && !htmlNode.name )
			return false ;

		var sSavedUrl = htmlNode.getAttribute( '_fcksavedurl' ) ;
		if ( sSavedUrl != null )
			FCKXHtml._AppendAttribute( node, 'href', sSavedUrl ) ;


		// Anchors with content has been marked with an additional class, now we must remove it.
		if ( FCKBrowserInfo.IsIE )
		{
			// Buggy IE, doesn't copy the name of changed anchors.
			if ( htmlNode.name )
				FCKXHtml._AppendAttribute( node, 'name', htmlNode.name ) ;
		}

		node = FCKXHtml._AppendChildNodes( node, htmlNode, false ) ;

		return node ;
	},

	area : function( node, htmlNode )
	{
		var sSavedUrl = htmlNode.getAttribute( '_fcksavedurl' ) ;
		if ( sSavedUrl != null )
			FCKXHtml._AppendAttribute( node, 'href', sSavedUrl ) ;

		// IE ignores the "COORDS" and "SHAPE" attribute so we must add it manually.
		if ( FCKBrowserInfo.IsIE )
		{
			if ( ! node.attributes.getNamedItem( 'coords' ) )
			{
				var sCoords = htmlNode.getAttribute( 'coords', 2 ) ;
				if ( sCoords && sCoords != '0,0,0' )
					FCKXHtml._AppendAttribute( node, 'coords', sCoords ) ;
			}

			if ( ! node.attributes.getNamedItem( 'shape' ) )
			{
				var sShape = htmlNode.getAttribute( 'shape', 2 ) ;
				if ( sShape && sShape.length > 0 )
					FCKXHtml._AppendAttribute( node, 'shape', sShape.toLowerCase() ) ;
			}
		}

		return node ;
	},

	body : function( node, htmlNode )
	{
		node = FCKXHtml._AppendChildNodes( node, htmlNode, false ) ;
		// Remove spellchecker attributes added for Firefox when converting to HTML code (Bug #1351).
		node.removeAttribute( 'spellcheck' ) ;
		return node ;
	},

	// IE loses contents of iframes, and Gecko does give it back HtmlEncoded
	// Note: Opera does lose the content and doesn't provide it in the innerHTML string
	iframe : function( node, htmlNode )
	{
		var sHtml = htmlNode.innerHTML ;

		// Gecko does give back the encoded html
		if ( FCKBrowserInfo.IsGecko )
			sHtml = FCKTools.HTMLDecode( sHtml );

		// Remove the saved urls here as the data won't be processed as nodes
		sHtml = sHtml.replace( /\s_fcksavedurl="[^"]*"/g, '' ) ;

		node.appendChild( FCKXHtml.XML.createTextNode( FCKXHtml._AppendSpecialItem( sHtml ) ) ) ;

		return node ;
	},

	img : function( node, htmlNode )
	{
		// The "ALT" attribute is required in XHTML.
		if ( ! node.attributes.getNamedItem( 'alt' ) )
			FCKXHtml._AppendAttribute( node, 'alt', '' ) ;

		var sSavedUrl = htmlNode.getAttribute( '_fcksavedurl' ) ;
		if ( sSavedUrl != null )
			FCKXHtml._AppendAttribute( node, 'src', sSavedUrl ) ;

		// Bug #768 : If the width and height are defined inline CSS,
		// don't define it again in the HTML attributes.
		if ( htmlNode.style.width )
			node.removeAttribute( 'width' ) ;
		if ( htmlNode.style.height )
			node.removeAttribute( 'height' ) ;

		return node ;
	},

	// Fix orphaned <li> nodes (Bug #503).
	li : function( node, htmlNode, targetNode )
	{
		// If the XML parent node is already a <ul> or <ol>, then add the <li> as usual.
		if ( targetNode.nodeName.IEquals( ['ul', 'ol'] ) )
			return FCKXHtml._AppendChildNodes( node, htmlNode, true ) ;

		var newTarget = FCKXHtml.XML.createElement( 'ul' ) ;

		// Reset the _fckxhtmljob so the HTML node is processed again.
		htmlNode._fckxhtmljob = null ;

		// Loop through all sibling LIs, adding them to the <ul>.
		do
		{
			FCKXHtml._AppendNode( newTarget, htmlNode ) ;

			// Look for the next element following this <li>.
			do
			{
				htmlNode = FCKDomTools.GetNextSibling( htmlNode ) ;

			} while ( htmlNode && htmlNode.nodeType == 3 && htmlNode.nodeValue.Trim().length == 0 )

		}	while ( htmlNode && htmlNode.nodeName.toLowerCase() == 'li' )

		return newTarget ;
	},

	// Fix nested <ul> and <ol>.
	ol : function( node, htmlNode, targetNode )
	{
		if ( htmlNode.innerHTML.Trim().length == 0 )
			return false ;

		var ePSibling = targetNode.lastChild ;

		if ( ePSibling && ePSibling.nodeType == 3 )
			ePSibling = ePSibling.previousSibling ;

		if ( ePSibling && ePSibling.nodeName.toUpperCase() == 'LI' )
		{
			htmlNode._fckxhtmljob = null ;
			FCKXHtml._AppendNode( ePSibling, htmlNode ) ;
			return false ;
		}

		node = FCKXHtml._AppendChildNodes( node, htmlNode ) ;

		return node ;
	},

	pre : function ( node, htmlNode )
	{
		var firstChild = htmlNode.firstChild ;

		if ( firstChild && firstChild.nodeType == 3 )
			node.appendChild( FCKXHtml.XML.createTextNode( FCKXHtml._AppendSpecialItem( '\r\n' ) ) ) ;

		FCKXHtml._AppendChildNodes( node, htmlNode, true ) ;

		return node ;
	},

	script : function( node, htmlNode )
	{
		// The "TYPE" attribute is required in XHTML.
		if ( ! node.attributes.getNamedItem( 'type' ) )
			FCKXHtml._AppendAttribute( node, 'type', 'text/javascript' ) ;

		node.appendChild( FCKXHtml.XML.createTextNode( FCKXHtml._AppendSpecialItem( htmlNode.text ) ) ) ;

		return node ;
	},

	span : function( node, htmlNode )
	{
		// Firefox may create empty tags when deleting the selection in some special cases (SF-BUG 1084404).
		if ( htmlNode.innerHTML.length == 0 )
			return false ;

		node = FCKXHtml._AppendChildNodes( node, htmlNode, false ) ;

		return node ;
	},

	style : function( node, htmlNode )
	{
		// The "TYPE" attribute is required in XHTML.
		if ( ! node.attributes.getNamedItem( 'type' ) )
			FCKXHtml._AppendAttribute( node, 'type', 'text/css' ) ;

		var cssText = htmlNode.innerHTML ;
		if ( FCKBrowserInfo.IsIE )	// Bug #403 : IE always appends a \r\n to the beginning of StyleNode.innerHTML
			cssText = cssText.replace( /^(\r\n|\n|\r)/, '' ) ;

		node.appendChild( FCKXHtml.XML.createTextNode( FCKXHtml._AppendSpecialItem( cssText ) ) ) ;

		return node ;
	},

	title : function( node, htmlNode )
	{
		node.appendChild( FCKXHtml.XML.createTextNode( FCK.EditorDocument.title ) ) ;

		return node ;
	}
} ;

FCKXHtml.TagProcessors.ul = FCKXHtml.TagProcessors.ol ;