| 1 | /*
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| 2 | * FCKeditor - The text editor for internet
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| 3 | * Copyright (C) 2003-2006 Frederico Caldeira Knabben
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| 4 | *
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| 5 | * Licensed under the terms of the GNU Lesser General Public License:
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| 6 | * http://www.opensource.org/licenses/lgpl-license.php
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| 7 | *
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| 8 | * For further information visit:
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| 9 | * http://www.fckeditor.net/
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| 10 | *
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| 11 | * "Support Open Source software. What about a donation today?"
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| 12 | *
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| 13 | * File Name: fckxhtml.js
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| 14 | * Defines the FCKXHtml object, responsible for the XHTML operations.
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| 15 | *
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| 16 | * File Authors:
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| 17 | * Frederico Caldeira Knabben (fredck@fckeditor.net)
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| 18 | */
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| 19 |
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| 20 | var FCKXHtml = new Object() ;
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| 21 |
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| 22 | FCKXHtml.CurrentJobNum = 0 ;
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| 23 |
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| 24 | FCKXHtml.GetXHTML = function( node, includeNode, format )
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| 25 | {
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| 26 | FCKXHtmlEntities.Initialize() ;
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| 27 |
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| 28 | // Save the current IsDirty state. The XHTML processor may change the
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| 29 | // original HTML, dirtying it.
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| 30 | var bIsDirty = FCK.IsDirty() ;
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| 31 |
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| 32 | this._CreateNode = FCKConfig.ForceStrongEm ? FCKXHtml_CreateNode_StrongEm : FCKXHtml_CreateNode_Normal ;
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| 33 |
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| 34 | // Special blocks are blocks of content that remain untouched during the
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| 35 | // process. It is used for SCRIPTs and STYLEs.
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| 36 | FCKXHtml.SpecialBlocks = new Array() ;
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| 37 |
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| 38 | // Create the XML DOMDocument object.
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| 39 | this.XML = FCKTools.CreateXmlObject( 'DOMDocument' ) ;
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| 40 |
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| 41 | // Add a root element that holds all child nodes.
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| 42 | this.MainNode = this.XML.appendChild( this.XML.createElement( 'xhtml' ) ) ;
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| 43 |
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| 44 | FCKXHtml.CurrentJobNum++ ;
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| 45 |
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| 46 | if ( includeNode )
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| 47 | this._AppendNode( this.MainNode, node ) ;
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| 48 | else
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| 49 | this._AppendChildNodes( this.MainNode, node, false ) ;
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| 50 |
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| 51 | // Get the resulting XHTML as a string.
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| 52 | var sXHTML = this._GetMainXmlString() ;
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| 53 |
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| 54 | this.XML = null ;
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| 55 |
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| 56 | // Strip the "XHTML" root node.
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| 57 | sXHTML = sXHTML.substr( 7, sXHTML.length - 15 ).trim() ;
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| 58 |
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| 59 | // Remove the trailing <br> added by Gecko.
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| 60 | if ( FCKBrowserInfo.IsGecko )
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| 61 | sXHTML = sXHTML.replace( /<br\/>$/, '' ) ;
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| 62 |
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| 63 | // Add a space in the tags with no closing tags, like <br/> -> <br />
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| 64 | sXHTML = sXHTML.replace( FCKRegexLib.SpaceNoClose, ' />');
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| 65 |
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| 66 | if ( FCKConfig.ForceSimpleAmpersand )
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| 67 | sXHTML = sXHTML.replace( FCKRegexLib.ForceSimpleAmpersand, '&' ) ;
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| 68 |
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| 69 | if ( format )
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| 70 | sXHTML = FCKCodeFormatter.Format( sXHTML ) ;
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| 71 |
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| 72 | // Now we put back the SpecialBlocks contents.
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| 73 | for ( var i = 0 ; i < FCKXHtml.SpecialBlocks.length ; i++ )
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| 74 | {
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| 75 | var oRegex = new RegExp( '___FCKsi___' + i ) ;
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| 76 | sXHTML = sXHTML.replace( oRegex, FCKXHtml.SpecialBlocks[i] ) ;
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| 77 | }
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| 78 |
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| 79 | // Replace entities marker with the ampersand.
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| 80 | sXHTML = sXHTML.replace( FCKRegexLib.GeckoEntitiesMarker, '&' ) ;
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| 81 |
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| 82 | // Restore the IsDirty state if it was not dirty.
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| 83 | if ( !bIsDirty )
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| 84 | FCK.ResetIsDirty() ;
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| 85 |
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| 86 | return sXHTML
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| 87 | }
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| 88 |
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| 89 | FCKXHtml._AppendAttribute = function( xmlNode, attributeName, attributeValue )
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| 90 | {
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| 91 | if ( FCKConfig.ForceSimpleAmpersand && attributeValue.replace )
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| 92 | attributeValue = attributeValue.replace( /&/g, '___FCKAmp___' ) ;
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| 93 |
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| 94 | try
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| 95 | {
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| 96 | // Create the attribute.
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| 97 | var oXmlAtt = this.XML.createAttribute( attributeName ) ;
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| 98 |
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| 99 | oXmlAtt.value = attributeValue ? attributeValue : '' ;
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| 100 |
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| 101 | // Set the attribute in the node.
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| 102 | xmlNode.attributes.setNamedItem( oXmlAtt ) ;
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| 103 | }
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| 104 | catch (e)
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| 105 | {}
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| 106 | }
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| 107 |
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| 108 | FCKXHtml._AppendChildNodes = function( xmlNode, htmlNode, isBlockElement )
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| 109 | {
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| 110 | var iCount = 0 ;
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| 111 |
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| 112 | var oNode = htmlNode.firstChild ;
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| 113 |
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| 114 | while ( oNode )
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| 115 | {
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| 116 | if ( this._AppendNode( xmlNode, oNode ) )
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| 117 | iCount++ ;
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| 118 |
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| 119 | oNode = oNode.nextSibling ;
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| 120 | }
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| 121 |
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| 122 | if ( iCount == 0 )
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| 123 | {
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| 124 | if ( isBlockElement && FCKConfig.FillEmptyBlocks )
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| 125 | {
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| 126 | this._AppendEntity( xmlNode, 'nbsp' ) ;
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| 127 | return ;
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| 128 | }
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| 129 |
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| 130 | // We can't use short representation of empty elements that are not marked
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| 131 | // as empty in th XHTML DTD.
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| 132 | if ( !FCKRegexLib.EmptyElements.test( htmlNode.nodeName ) )
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| 133 | xmlNode.appendChild( this.XML.createTextNode('') ) ;
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| 134 | }
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| 135 | }
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| 136 |
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| 137 | FCKXHtml._AppendNode = function( xmlNode, htmlNode )
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| 138 | {
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| 139 | if ( !htmlNode )
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| 140 | return ;
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| 141 |
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| 142 | switch ( htmlNode.nodeType )
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| 143 | {
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| 144 | // Element Node.
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| 145 | case 1 :
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| 146 |
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| 147 | // Here we found an element that is not the real element, but a
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| 148 | // fake one (like the Flash placeholder image), so we must get the real one.
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| 149 | if ( htmlNode.getAttribute('_fckfakelement') )
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| 150 | return FCKXHtml._AppendNode( xmlNode, FCK.GetRealElement( htmlNode ) ) ;
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| 151 |
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| 152 | // Mozilla insert custom nodes in the DOM.
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| 153 | if ( FCKBrowserInfo.IsGecko && htmlNode.hasAttribute('_moz_editor_bogus_node') )
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| 154 | return false ;
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| 155 |
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| 156 | // This is for elements that are instrumental to FCKeditor and
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| 157 | // must be removed from the final HTML.
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| 158 | if ( htmlNode.getAttribute('_fcktemp') )
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| 159 | return false ;
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| 160 |
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| 161 | // Get the element name.
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| 162 | var sNodeName = htmlNode.nodeName ;
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| 163 |
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| 164 | //Add namespace:
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| 165 | if ( FCKBrowserInfo.IsIE && htmlNode.scopeName && htmlNode.scopeName != 'HTML' && htmlNode.scopeName != 'FCK' )
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| 166 | sNodeName = htmlNode.scopeName + ':' + sNodeName ;
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| 167 |
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| 168 | // Check if the node name is valid, otherwise ignore this tag.
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| 169 | // If the nodeName starts with a slash, it is a orphan closing tag.
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| 170 | // On some strange cases, the nodeName is empty, even if the node exists.
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| 171 | if ( !FCKRegexLib.ElementName.test( sNodeName ) )
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| 172 | return false ;
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| 173 |
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| 174 | sNodeName = sNodeName.toLowerCase() ;
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| 175 |
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| 176 | if ( FCKBrowserInfo.IsGecko && sNodeName == 'br' && htmlNode.hasAttribute('type') && htmlNode.getAttribute( 'type', 2 ) == '_moz' )
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| 177 | return false ;
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| 178 |
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| 179 | // The already processed nodes must be marked to avoid then to be duplicated (bad formatted HTML).
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| 180 | // So here, the "mark" is checked... if the element is Ok, then mark it.
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| 181 | if ( htmlNode._fckxhtmljob && htmlNode._fckxhtmljob == FCKXHtml.CurrentJobNum )
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| 182 | return false ;
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| 183 |
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| 184 | var oNode = this._CreateNode( sNodeName ) ;
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| 185 |
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| 186 | // Add all attributes.
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| 187 | FCKXHtml._AppendAttributes( xmlNode, htmlNode, oNode, sNodeName ) ;
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| 188 |
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| 189 | htmlNode._fckxhtmljob = FCKXHtml.CurrentJobNum ;
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| 190 |
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| 191 | // Tag specific processing.
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| 192 | var oTagProcessor = FCKXHtml.TagProcessors[ sNodeName ] ;
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| 193 |
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| 194 | if ( oTagProcessor )
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| 195 | {
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| 196 | oNode = oTagProcessor( oNode, htmlNode, xmlNode ) ;
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| 197 | if ( !oNode ) break ;
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| 198 | }
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| 199 | else
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| 200 | this._AppendChildNodes( oNode, htmlNode, FCKRegexLib.BlockElements.test( sNodeName ) ) ;
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| 201 |
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| 202 | xmlNode.appendChild( oNode ) ;
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| 203 |
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| 204 | break ;
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| 205 |
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| 206 | // Text Node.
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| 207 | case 3 :
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| 208 | this._AppendTextNode( xmlNode, htmlNode.nodeValue.replaceNewLineChars(' ') ) ;
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| 209 | break ;
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| 210 |
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| 211 | // Comment
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| 212 | case 8 :
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| 213 | // IE catches the <!DOTYPE ... > as a comment, but it has no
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| 214 | // innerHTML, so we can catch it, and ignore it.
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| 215 | if ( FCKBrowserInfo.IsIE && !htmlNode.innerHTML )
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| 216 | break ;
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| 217 |
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| 218 | try { xmlNode.appendChild( this.XML.createComment( htmlNode.nodeValue ) ) ; }
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| 219 | catch (e) { /* Do nothing... probably this is a wrong format comment. */ }
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| 220 | break ;
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| 221 |
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| 222 | // Unknown Node type.
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| 223 | default :
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| 224 | xmlNode.appendChild( this.XML.createComment( "Element not supported - Type: " + htmlNode.nodeType + " Name: " + htmlNode.nodeName ) ) ;
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| 225 | break ;
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| 226 | }
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| 227 | return true ;
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| 228 | }
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| 229 |
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| 230 | function FCKXHtml_CreateNode_StrongEm( nodeName )
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| 231 | {
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| 232 | switch ( nodeName )
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| 233 | {
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| 234 | case 'b' :
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| 235 | nodeName = 'strong' ;
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| 236 | break ;
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| 237 | case 'i' :
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| 238 | nodeName = 'em' ;
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| 239 | break ;
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| 240 | }
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| 241 | return this.XML.createElement( nodeName ) ;
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| 242 | }
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| 243 |
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| 244 | function FCKXHtml_CreateNode_Normal( nodeName )
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| 245 | {
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| 246 | return this.XML.createElement( nodeName ) ;
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| 247 | }
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| 248 |
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| 249 | // Append an item to the SpecialBlocks array and returns the tag to be used.
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| 250 | FCKXHtml._AppendSpecialItem = function( item )
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| 251 | {
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| 252 | return '___FCKsi___' + FCKXHtml.SpecialBlocks.AddItem( item ) ;
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| 253 | }
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| 254 |
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| 255 | FCKXHtml._AppendEntity = function( xmlNode, entity )
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| 256 | {
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| 257 | xmlNode.appendChild( this.XML.createTextNode( '#?-:' + entity + ';' ) ) ;
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| 258 | }
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| 259 |
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| 260 | FCKXHtml._AppendTextNode = function( targetNode, textValue )
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| 261 | {
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| 262 | targetNode.appendChild( this.XML.createTextNode( textValue.replace( FCKXHtmlEntities.EntitiesRegex, FCKXHtml_GetEntity ) ) ) ;
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| 263 | return ;
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| 264 | }
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| 265 |
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| 266 | // Retrieves a entity (internal format) for a given character.
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| 267 | function FCKXHtml_GetEntity( character )
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| 268 | {
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| 269 | // We cannot simply place the entities in the text, because the XML parser
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| 270 | // will translate & to &. So we use a temporary marker which is replaced
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| 271 | // in the end of the processing.
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| 272 | var sEntity = FCKXHtmlEntities.Entities[ character ] || ( '#' + character.charCodeAt(0) ) ;
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| 273 | return '#?-:' + sEntity + ';' ;
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| 274 | }
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| 275 |
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| 276 | // An object that hold tag specific operations.
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| 277 | FCKXHtml.TagProcessors = new Object() ;
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| 278 |
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| 279 | FCKXHtml.TagProcessors['img'] = function( node, htmlNode )
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| 280 | {
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| 281 | // The "ALT" attribute is required in XHTML.
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| 282 | if ( ! node.attributes.getNamedItem( 'alt' ) )
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| 283 | FCKXHtml._AppendAttribute( node, 'alt', '' ) ;
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| 284 |
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| 285 | var sSavedUrl = htmlNode.getAttribute( '_fcksavedurl' ) ;
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| 286 | if ( sSavedUrl != null )
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| 287 | FCKXHtml._AppendAttribute( node, 'src', sSavedUrl ) ;
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| 288 |
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| 289 | return node ;
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| 290 | }
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| 291 |
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| 292 | FCKXHtml.TagProcessors['a'] = function( node, htmlNode )
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| 293 | {
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| 294 | var sSavedUrl = htmlNode.getAttribute( '_fcksavedurl' ) ;
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| 295 | if ( sSavedUrl != null )
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| 296 | FCKXHtml._AppendAttribute( node, 'href', sSavedUrl ) ;
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| 297 |
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| 298 | FCKXHtml._AppendChildNodes( node, htmlNode, false ) ;
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| 299 |
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| 300 | // Firefox may create empty tags when deleting the selection in some special cases (SF-BUG 1556878).
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| 301 | if ( node.childNodes.length == 0 && !node.getAttribute( 'name' ) )
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| 302 | return false ;
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| 303 |
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| 304 | return node ;
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| 305 | }
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| 306 |
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| 307 | FCKXHtml.TagProcessors['script'] = function( node, htmlNode )
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| 308 | {
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| 309 | // The "TYPE" attribute is required in XHTML.
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| 310 | if ( ! node.attributes.getNamedItem( 'type' ) )
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| 311 | FCKXHtml._AppendAttribute( node, 'type', 'text/javascript' ) ;
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| 312 |
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| 313 | node.appendChild( FCKXHtml.XML.createTextNode( FCKXHtml._AppendSpecialItem( htmlNode.text ) ) ) ;
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| 314 |
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| 315 | return node ;
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| 316 | }
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| 317 |
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| 318 | FCKXHtml.TagProcessors['style'] = function( node, htmlNode )
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| 319 | {
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| 320 | // The "TYPE" attribute is required in XHTML.
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| 321 | if ( ! node.attributes.getNamedItem( 'type' ) )
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| 322 | FCKXHtml._AppendAttribute( node, 'type', 'text/css' ) ;
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| 323 |
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| 324 | node.appendChild( FCKXHtml.XML.createTextNode( FCKXHtml._AppendSpecialItem( htmlNode.innerHTML ) ) ) ;
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| 325 |
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| 326 | return node ;
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| 327 | }
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| 328 |
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| 329 | FCKXHtml.TagProcessors['title'] = function( node, htmlNode )
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| 330 | {
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| 331 | node.appendChild( FCKXHtml.XML.createTextNode( FCK.EditorDocument.title ) ) ;
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| 332 |
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| 333 | return node ;
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| 334 | }
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| 335 |
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| 336 | FCKXHtml.TagProcessors['table'] = function( node, htmlNode )
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| 337 | {
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| 338 | // There is a trick to show table borders when border=0. We add to the
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| 339 | // table class the FCK__ShowTableBorders rule. So now we must remove it.
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| 340 |
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| 341 | var oClassAtt = node.attributes.getNamedItem( 'class' ) ;
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| 342 |
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| 343 | if ( oClassAtt && FCKRegexLib.TableBorderClass.test( oClassAtt.nodeValue ) )
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| 344 | {
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| 345 | var sClass = oClassAtt.nodeValue.replace( FCKRegexLib.TableBorderClass, '' ) ;
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| 346 |
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| 347 | if ( sClass.length == 0 )
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| 348 | node.attributes.removeNamedItem( 'class' ) ;
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| 349 | else
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| 350 | FCKXHtml._AppendAttribute( node, 'class', sClass ) ;
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| 351 | }
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| 352 |
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| 353 | FCKXHtml._AppendChildNodes( node, htmlNode, false ) ;
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| 354 |
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| 355 | return node ;
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| 356 | }
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| 357 |
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| 358 | // Fix nested <ul> and <ol>.
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| 359 | FCKXHtml.TagProcessors['ol'] = FCKXHtml.TagProcessors['ul'] = function( node, htmlNode, targetNode )
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| 360 | {
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| 361 | if ( htmlNode.innerHTML.trim().length == 0 )
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| 362 | return ;
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| 363 |
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| 364 | var ePSibling = targetNode.lastChild ;
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| 365 |
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| 366 | if ( ePSibling && ePSibling.nodeType == 3 )
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| 367 | ePSibling = ePSibling.previousSibling ;
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| 368 |
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| 369 | if ( ePSibling && ePSibling.nodeName.toUpperCase() == 'LI' )
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| 370 | {
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| 371 | htmlNode._fckxhtmljob = null ;
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| 372 | FCKXHtml._AppendNode( ePSibling, htmlNode ) ;
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| 373 | return ;
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| 374 | }
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| 375 |
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| 376 | FCKXHtml._AppendChildNodes( node, htmlNode ) ;
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| 377 |
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| 378 | return node ;
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| 379 | }
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| 380 |
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| 381 | FCKXHtml.TagProcessors['span'] = function( node, htmlNode )
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| 382 | {
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| 383 | // Firefox may create empty tags when deleting the selection in some special cases (SF-BUG 1084404).
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| 384 | if ( htmlNode.innerHTML.length == 0 )
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| 385 | return false ;
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| 386 |
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| 387 | FCKXHtml._AppendChildNodes( node, htmlNode, false ) ;
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| 388 |
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| 389 | return node ;
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| 390 | } |
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