fckxhtml.js
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上传日期:2021-11-18
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文件大小:11k
源码类别:
OA系统
开发平台:
C#
- /*
- * FCKeditor - The text editor for internet
- * Copyright (C) 2003-2006 Frederico Caldeira Knabben
- *
- * Licensed under the terms of the GNU Lesser General Public License:
- * http://www.opensource.org/licenses/lgpl-license.php
- *
- * For further information visit:
- * http://www.fckeditor.net/
- *
- * "Support Open Source software. What about a donation today?"
- *
- * File Name: fckxhtml.js
- * Defines the FCKXHtml object, responsible for the XHTML operations.
- *
- * File Authors:
- * Frederico Caldeira Knabben (fredck@fckeditor.net)
- */
- var FCKXHtml = new Object() ;
- FCKXHtml.CurrentJobNum = 0 ;
- FCKXHtml.GetXHTML = function( node, includeNode, format )
- {
- FCKXHtmlEntities.Initialize() ;
- // Save the current IsDirty state. The XHTML processor may change the
- // original HTML, dirtying it.
- var bIsDirty = FCK.IsDirty() ;
- this._CreateNode = FCKConfig.ForceStrongEm ? FCKXHtml_CreateNode_StrongEm : FCKXHtml_CreateNode_Normal ;
- // Special blocks are blocks of content that remain untouched during the
- // process. It is used for SCRIPTs and STYLEs.
- FCKXHtml.SpecialBlocks = new Array() ;
- // Create the XML DOMDocument object.
- this.XML = FCKTools.CreateXmlObject( 'DOMDocument' ) ;
- // Add a root element that holds all child nodes.
- this.MainNode = this.XML.appendChild( this.XML.createElement( 'xhtml' ) ) ;
- FCKXHtml.CurrentJobNum++ ;
- if ( includeNode )
- this._AppendNode( this.MainNode, node ) ;
- else
- this._AppendChildNodes( this.MainNode, node, false ) ;
- // Get the resulting XHTML as a string.
- var sXHTML = this._GetMainXmlString() ;
- this.XML = null ;
- // Strip the "XHTML" root node.
- sXHTML = sXHTML.substr( 7, sXHTML.length - 15 ).trim() ;
- // Remove the trailing <br> added by Gecko.
- if ( FCKBrowserInfo.IsGecko )
- sXHTML = sXHTML.replace( /<br/>$/, '' ) ;
- // Add a space in the tags with no closing tags, like <br/> -> <br />
- sXHTML = sXHTML.replace( FCKRegexLib.SpaceNoClose, ' />');
- if ( FCKConfig.ForceSimpleAmpersand )
- sXHTML = sXHTML.replace( FCKRegexLib.ForceSimpleAmpersand, '&' ) ;
- if ( format )
- sXHTML = FCKCodeFormatter.Format( sXHTML ) ;
- // Now we put back the SpecialBlocks contents.
- for ( var i = 0 ; i < FCKXHtml.SpecialBlocks.length ; i++ )
- {
- var oRegex = new RegExp( '___FCKsi___' + i ) ;
- sXHTML = sXHTML.replace( oRegex, FCKXHtml.SpecialBlocks[i] ) ;
- }
- // Replace entities marker with the ampersand.
- sXHTML = sXHTML.replace( FCKRegexLib.GeckoEntitiesMarker, '&' ) ;
- // Restore the IsDirty state if it was not dirty.
- if ( !bIsDirty )
- FCK.ResetIsDirty() ;
- return sXHTML
- }
- FCKXHtml._AppendAttribute = function( xmlNode, attributeName, attributeValue )
- {
- if ( FCKConfig.ForceSimpleAmpersand && attributeValue.replace )
- attributeValue = attributeValue.replace( /&/g, '___FCKAmp___' ) ;
- try
- {
- // Create the attribute.
- var oXmlAtt = this.XML.createAttribute( attributeName ) ;
- oXmlAtt.value = attributeValue ? attributeValue : '' ;
- // Set the attribute in the node.
- xmlNode.attributes.setNamedItem( oXmlAtt ) ;
- }
- catch (e)
- {}
- }
- FCKXHtml._AppendChildNodes = function( xmlNode, htmlNode, isBlockElement )
- {
- var iCount = 0 ;
- var oNode = htmlNode.firstChild ;
- while ( oNode )
- {
- if ( this._AppendNode( xmlNode, oNode ) )
- iCount++ ;
- oNode = oNode.nextSibling ;
- }
- if ( iCount == 0 )
- {
- if ( isBlockElement && FCKConfig.FillEmptyBlocks )
- {
- this._AppendEntity( xmlNode, 'nbsp' ) ;
- return ;
- }
- // We can't use short representation of empty elements that are not marked
- // as empty in th XHTML DTD.
- if ( !FCKRegexLib.EmptyElements.test( htmlNode.nodeName ) )
- xmlNode.appendChild( this.XML.createTextNode('') ) ;
- }
- }
- FCKXHtml._AppendNode = function( xmlNode, htmlNode )
- {
- if ( !htmlNode )
- return ;
- switch ( htmlNode.nodeType )
- {
- // Element Node.
- case 1 :
- // Here we found an element that is not the real element, but a
- // fake one (like the Flash placeholder image), so we must get the real one.
- if ( htmlNode.getAttribute('_fckfakelement') )
- return FCKXHtml._AppendNode( xmlNode, FCK.GetRealElement( htmlNode ) ) ;
- // Mozilla insert custom nodes in the DOM.
- if ( FCKBrowserInfo.IsGecko && htmlNode.hasAttribute('_moz_editor_bogus_node') )
- return false ;
- // This is for elements that are instrumental to FCKeditor and
- // must be removed from the final HTML.
- if ( htmlNode.getAttribute('_fcktemp') )
- return false ;
- // Get the element name.
- var sNodeName = htmlNode.nodeName ;
- //Add namespace:
- if ( FCKBrowserInfo.IsIE && htmlNode.scopeName && htmlNode.scopeName != 'HTML' && htmlNode.scopeName != 'FCK' )
- sNodeName = htmlNode.scopeName + ':' + sNodeName ;
- // Check if the node name is valid, otherwise ignore this tag.
- // If the nodeName starts with a slash, it is a orphan closing tag.
- // On some strange cases, the nodeName is empty, even if the node exists.
- if ( !FCKRegexLib.ElementName.test( sNodeName ) )
- return false ;
- sNodeName = sNodeName.toLowerCase() ;
- if ( FCKBrowserInfo.IsGecko && sNodeName == 'br' && htmlNode.hasAttribute('type') && htmlNode.getAttribute( 'type', 2 ) == '_moz' )
- return false ;
- // The already processed nodes must be marked to avoid then to be duplicated (bad formatted HTML).
- // So here, the "mark" is checked... if the element is Ok, then mark it.
- if ( htmlNode._fckxhtmljob && htmlNode._fckxhtmljob == FCKXHtml.CurrentJobNum )
- return false ;
- var oNode = this._CreateNode( sNodeName ) ;
- // Add all attributes.
- FCKXHtml._AppendAttributes( xmlNode, htmlNode, oNode, sNodeName ) ;
- htmlNode._fckxhtmljob = FCKXHtml.CurrentJobNum ;
- // Tag specific processing.
- var oTagProcessor = FCKXHtml.TagProcessors[ sNodeName ] ;
- if ( oTagProcessor )
- {
- oNode = oTagProcessor( oNode, htmlNode, xmlNode ) ;
- if ( !oNode ) break ;
- }
- else
- this._AppendChildNodes( oNode, htmlNode, FCKRegexLib.BlockElements.test( sNodeName ) ) ;
- xmlNode.appendChild( oNode ) ;
- break ;
- // Text Node.
- case 3 :
- this._AppendTextNode( xmlNode, htmlNode.nodeValue.replaceNewLineChars(' ') ) ;
- break ;
- // 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 ;
- }
- function FCKXHtml_CreateNode_StrongEm( nodeName )
- {
- switch ( nodeName )
- {
- case 'b' :
- nodeName = 'strong' ;
- break ;
- case 'i' :
- nodeName = 'em' ;
- break ;
- }
- return this.XML.createElement( nodeName ) ;
- }
- function FCKXHtml_CreateNode_Normal( nodeName )
- {
- return this.XML.createElement( nodeName ) ;
- }
- // 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 )
- {
- targetNode.appendChild( this.XML.createTextNode( textValue.replace( FCKXHtmlEntities.EntitiesRegex, FCKXHtml_GetEntity ) ) ) ;
- return ;
- }
- // 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 &. 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 = new Object() ;
- FCKXHtml.TagProcessors['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 ) ;
- return node ;
- }
- FCKXHtml.TagProcessors['a'] = function( node, htmlNode )
- {
- var sSavedUrl = htmlNode.getAttribute( '_fcksavedurl' ) ;
- if ( sSavedUrl != null )
- FCKXHtml._AppendAttribute( node, 'href', sSavedUrl ) ;
- FCKXHtml._AppendChildNodes( node, htmlNode, false ) ;
- // Firefox may create empty tags when deleting the selection in some special cases (SF-BUG 1556878).
- if ( node.childNodes.length == 0 && !node.getAttribute( 'name' ) )
- return false ;
- return node ;
- }
- FCKXHtml.TagProcessors['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 ;
- }
- FCKXHtml.TagProcessors['style'] = function( node, htmlNode )
- {
- // The "TYPE" attribute is required in XHTML.
- if ( ! node.attributes.getNamedItem( 'type' ) )
- FCKXHtml._AppendAttribute( node, 'type', 'text/css' ) ;
- node.appendChild( FCKXHtml.XML.createTextNode( FCKXHtml._AppendSpecialItem( htmlNode.innerHTML ) ) ) ;
- return node ;
- }
- FCKXHtml.TagProcessors['title'] = function( node, htmlNode )
- {
- node.appendChild( FCKXHtml.XML.createTextNode( FCK.EditorDocument.title ) ) ;
- return node ;
- }
- FCKXHtml.TagProcessors['table'] = function( node, htmlNode )
- {
- // There is a trick to show table borders when border=0. We add to the
- // table class the FCK__ShowTableBorders rule. So now we must remove it.
- var oClassAtt = node.attributes.getNamedItem( 'class' ) ;
- if ( oClassAtt && FCKRegexLib.TableBorderClass.test( oClassAtt.nodeValue ) )
- {
- var sClass = oClassAtt.nodeValue.replace( FCKRegexLib.TableBorderClass, '' ) ;
- if ( sClass.length == 0 )
- node.attributes.removeNamedItem( 'class' ) ;
- else
- FCKXHtml._AppendAttribute( node, 'class', sClass ) ;
- }
- FCKXHtml._AppendChildNodes( node, htmlNode, false ) ;
- return node ;
- }
- // Fix nested <ul> and <ol>.
- FCKXHtml.TagProcessors['ol'] = FCKXHtml.TagProcessors['ul'] = function( node, htmlNode, targetNode )
- {
- if ( htmlNode.innerHTML.trim().length == 0 )
- return ;
- 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 ;
- }
- FCKXHtml._AppendChildNodes( node, htmlNode ) ;
- return node ;
- }
- FCKXHtml.TagProcessors['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 ;
- FCKXHtml._AppendChildNodes( node, htmlNode, false ) ;
- return node ;
- }