/** * VisualEditor data model Converter class. * * @copyright 2011-2012 VisualEditor Team and others; see AUTHORS.txt * @license The MIT License (MIT); see LICENSE.txt */ /** * Converter between HTML DOM and VisualEditor linear data. * * @class * @constructor * @param {Object} options Conversion options */ ve.dm.Converter = function VeDmConverter( nodeFactory, annotationFactory ) { // Properties this.nodeFactory = nodeFactory; this.annotationFactory = annotationFactory; this.elements = { 'toDomElement': {}, 'toDataElement': {}, 'dataElementTypes': {} }; // Events this.nodeFactory.addListenerMethod( this, 'register', 'onNodeRegister' ); }; /* Static Methods */ /** * Get linear model data from a string optionally applying annotations * * @param {String} text Plain text to convert * @param {Array} [annotations] Array of annotation objects to apply * @returns {Array} Linear model data, one element per character */ ve.dm.Converter.getDataContentFromText = function ( text, annotations ) { var characters = text.split( '' ), annotationSet = new ve.AnnotationSet(), i; if ( !annotations || annotations.length === 0 ) { return characters; } // Build annotation set for ( i = 0; i < annotations.length; i++ ) { annotationSet.push( annotations[i] ); } // Apply annotations to characters for ( i = 0; i < characters.length; i++ ) { // Make a shallow copy of the annotationSet object, otherwise adding an annotation to one // character automatically adds it to all of others as well, annotations should be treated // as immutable, so it's OK to share references, but annotation sets are not immutable, so // it's not safe to share references - each annotated character needs its own set characters[i] = [characters[i], annotationSet.clone()]; } return characters; }; /* Methods */ /** * Responds to register events from the node factory. * * If a node is special; such as document, alienInline, alienBlock and text; its {converters} * property should be set to null, as to distinguish it from a new node type that someone has simply * forgotten to implement converters for. * * @method * @param {String} type Node type * @param {Function} constructor Node constructor * @throws 'Missing conversion data in node implementation of {type}' */ ve.dm.Converter.prototype.onNodeRegister = function ( dataElementType, constructor ) { if ( constructor.converters === undefined ) { throw new Error( 'Missing conversion data in node implementation of ' + dataElementType ); } else if ( constructor.converters !== null ) { var i, domElementTypes = constructor.converters.domElementTypes, toDomElement = constructor.converters.toDomElement, toDataElement = constructor.converters.toDataElement; // Registration this.elements.toDomElement[dataElementType] = toDomElement; for ( i = 0; i < domElementTypes.length; i++ ) { this.elements.toDataElement[domElementTypes[i]] = toDataElement; this.elements.dataElementTypes[domElementTypes[i]] = dataElementType; } } }; /** * Get the DOM element for a given linear model element. * * This invokes the toDomElement function registered for the element type. * * @method * @param {Object} dataElement Linear model element * @returns {HTMLElement|false} DOM element, or false if this element cannot be converted */ ve.dm.Converter.prototype.getDomElementFromDataElement = function ( dataElement ) { var key, domElement, dataElementAttributes, wrapper, dataElementType = dataElement.type; if ( dataElementType === 'alienInline' || dataElementType === 'alienBlock' ) { // Alien // Create nodes from source wrapper = document.createElement( 'div' ); wrapper.innerHTML = dataElement.attributes.html; if ( wrapper.childNodes.length > 1 ) { // Wrap the HTML in a single element, this makes // it much easier to deal with. It'll be unwrapped // at the end of getDomFromData(). domElement = document.createElement( 'div' ); domElement.setAttribute( 'data-ve-multi-child-alien-wrapper', 'true' ); while ( wrapper.firstChild ) { domElement.appendChild( wrapper.firstChild ); } } else { domElement = wrapper.firstChild; } return domElement; } if ( !( dataElementType in this.elements.toDomElement ) ) { // Unsupported element return false; } domElement = this.elements.toDomElement[dataElementType]( dataElementType, dataElement ); dataElementAttributes = dataElement.attributes; if ( dataElementAttributes ) { for ( key in dataElementAttributes ) { // Only include 'html/*' attributes and strip the 'html/' from the beginning of the name if ( key.indexOf( 'html/' ) === 0 ) { domElement.setAttribute( key.substr( 5 ), dataElementAttributes[key] ); } } } // Change markers if ( dataElement.internal && dataElement.internal.changed && !ve.isEmptyObject( dataElement.internal.changed ) && ve.init.platform.useChangeMarkers() ) { domElement.setAttribute( 'data-ve-changed', JSON.stringify( dataElement.internal.changed ) ); } return domElement; }; /** * Get the linear model data element for a given DOM element. * * This invokes the toDataElement function registered for the element type * * @method * @param {HTMLElement} domElement DOM element * @param {Array} annotations Annotations to apply if the node is a content node * @returns {Object|false} Linear model element, or false if this node cannot be converted */ ve.dm.Converter.prototype.getDataElementFromDomElement = function ( domElement, annotations ) { var dataElement, domElementAttributes, dataElementAttributes, domElementAttribute, i, annotationSet, domElementType = domElement.nodeName.toLowerCase(); annotations = annotations || []; if ( // Unsupported elements !( domElementType in this.elements.toDataElement ) // TODO check for generated elements ) { return false; } dataElement = this.elements.toDataElement[domElementType]( domElementType, domElement ); domElementAttributes = domElement.attributes; if ( domElementAttributes.length ) { dataElementAttributes = dataElement.attributes = dataElement.attributes || {}; // Include all attributes and prepend 'html/' to each attribute name for ( i = 0; i < domElementAttributes.length; i++ ) { domElementAttribute = domElementAttributes[i]; dataElementAttributes['html/' + domElementAttribute.name] = domElementAttribute.value; } } if ( ve.dm.nodeFactory.isNodeContent( dataElement.type ) && annotations.length > 0 ) { // Build annotation set annotationSet = new ve.AnnotationSet(); for ( i = 0; i < annotations.length; i++ ) { annotationSet.push( annotations[i] ); } dataElement.annotations = annotationSet; } return dataElement; }; /** * Check if an HTML DOM node represents an annotation, and if so, build an annotation object for it. * * @example Annotation Object * { 'type': 'type', data: { 'key': 'value', ... } } * * @param {HTMLElement} domElement HTML DOM node * @returns {Object|false} Annotation object, or false if this node is not an annotation */ ve.dm.Converter.prototype.getDataAnnotationFromDomElement = function ( domElement ) { return ve.dm.annotationFactory.createFromElement( domElement ) || false; }; /** * Build an HTML DOM node for a linear model annotation. * * @method * @param {Object} dataAnnotation Annotation object * @returns {HTMLElement} HTML DOM node */ ve.dm.Converter.prototype.getDomElementFromDataAnnotation = function ( dataAnnotation ) { var htmlData = dataAnnotation.toHTML(), domElement = document.createElement( htmlData.tag ); ve.setDomAttributes( domElement, htmlData.attributes ); return domElement; }; /** * Convert an HTML DOM tree to a linear model. * * Do not use the annotations, dataElement and path parameters, they're used for internal * recursion only. * * @method * @param {HTMLElement} domElement Wrapper div containing the HTML to convert * @param {Array} [annotations] Array of annotations (objects) to apply to the generated data * @param {Object} [dataElement] Data element to wrap the returned data in * @param {Array} [path] Array of linear model element types * @param {Boolean} [alreadyWrapped] Whether the caller has already started wrapping bare content in a paragraph * @returns {Array} Linear model data */ ve.dm.Converter.prototype.getDataFromDom = function ( domElement, annotations, dataElement, path, alreadyWrapped ) { function createAlien( domElement, branchHasContent, isWrapper ) { // If we're in wrapping mode, we don't know if this alien is supposed to be block // or inline, so detect it based on the HTML tag name. var isInline = ( wrapping && wrappingIsOurs ) ? !ve.isBlockElement( domElement ) : ( branchHasContent || annotations.length > 0 ), type = isInline ? 'alienInline' : 'alienBlock', html, alien, annotationSet, i; if ( isWrapper ) { html = $( domElement ).html(); } else { html = $( '
' ).append( $( domElement ).clone() ).html(); } alien = [ { 'type': type, 'attributes': { 'html': html } }, { 'type': '/' + type } ]; if ( annotations.length > 0 ) { annotationSet = new ve.AnnotationSet(); for ( i = 0; i < annotations.length; i++ ) { annotationSet.push( annotations[i] ); } alien[0].annotations = annotationSet; } return alien; } function addWhitespace( element, index, whitespace ) { if ( !element.internal ) { element.internal = {}; } // whitespace = [ outerPre, innerPre, innerPost, outerPost ] // text // ^^^^^^^^^^ ^^^^^^^^^ ^^^^^^^^^^^ ^^^^^^^^^^ // outerPre innerPre innerPost outerPost if ( !element.internal.whitespace ) { element.internal.whitespace = []; } if ( !element.internal.whitespace[index] ) { element.internal.whitespace[index] = ''; } element.internal.whitespace[index] = whitespace; } function processNextWhitespace( element ) { // This function uses and changes nextWhitespace in the outer function's scope, // which means it's not really a function but more of a shortcut. if ( nextWhitespace !== '' ) { addWhitespace( element, 0, nextWhitespace ); nextWhitespace = ''; } } function stopWrapping() { if ( wrappedWhitespace !== '' ) { // Remove wrappedWhitespace from data data.splice( wrappedWhitespaceIndex, wrappedWhitespace.length ); addWhitespace( wrappingParagraph, 3, wrappedWhitespace ); nextWhitespace = wrappedWhitespace; } data.push( { 'type': '/paragraph' } ); wrappingParagraph = undefined; wrapping = false; wrappingIsOurs = false; } /** * Helper function to group adjacent child elements with the same about attribute together. * If there are multiple adjacent child nodes with the same about attribute, they are * wrapped in a
with the data-ve-aboutgroup attribute set. * * This function does not wrap single-element about groups, and does not descend into the * child elements. * * @param element {HTMLElement} Element to process */ function doAboutGrouping( element ) { var child = element.firstChild, textNodes = [], prevChild, aboutGroup, aboutWrapper, childAbout, nextChild, i; while ( child ) { nextChild = child.nextSibling; if ( !child.getAttribute ) { // Text nodes don't have a getAttribute() method. Thanks HTML DOM, // that's really helpful ^^ textNodes.push( child ); child = nextChild; continue; } childAbout = child.getAttribute( 'about' ); if ( childAbout && !aboutGroup ) { // Start of a new about group aboutGroup = childAbout; } else if ( childAbout && childAbout === aboutGroup ) { // Continuation of the current about group if ( !aboutWrapper ) { // This is the second child in this group, so the // previous child is the first child in this group. // Wrap the previous child aboutWrapper = document.createElement( 'div' ); aboutWrapper.setAttribute( 'data-ve-aboutgroup', aboutGroup ); element.insertBefore( aboutWrapper, prevChild ); aboutWrapper.appendChild( prevChild ); } // Append any outstanding text nodes to the wrapper for ( i = 0; i < textNodes.length; i++ ) { aboutWrapper.appendChild( textNodes[i] ); } // Append this child to the wrapper aboutWrapper.appendChild( child ); } else if ( aboutGroup ) { // This child isn't in the current about group aboutGroup = undefined; aboutWrapper = undefined; if ( childAbout ) { // Start of a new about group aboutGroup = childAbout; } } prevChild = child; child = nextChild; textNodes = []; } } // Fallback to defaults annotations = annotations || []; path = path || ['document']; var i, j, childDomElement, annotation, childDataElement, text, childTypes, matches, wrappingParagraph, prevElement, alien, rdfaType, isLink, data = [], branchType = path[path.length - 1], branchHasContent = ve.dm.nodeFactory.canNodeContainContent( branchType ), childIsContent, nextWhitespace = '', wrappedWhitespace = '', wrappedWhitespaceIndex, wrapping = alreadyWrapped, wrappingIsOurs = false; // Open element if ( dataElement ) { data.push( dataElement ); } // Do about grouping // FIXME this assumes every about group is an alien doAboutGrouping( domElement ); // Add contents for ( i = 0; i < domElement.childNodes.length; i++ ) { childDomElement = domElement.childNodes[i]; switch ( childDomElement.nodeType ) { case Node.ELEMENT_NODE: // Alienate about groups if ( childDomElement.hasAttribute( 'data-ve-aboutgroup' ) ) { alien = createAlien( childDomElement, branchHasContent, true ); if ( wrapping && alien[0].type === 'alienBlock' ) { stopWrapping(); } data = data.concat( alien ); processNextWhitespace( alien[0] ); prevElement = alien[0]; break; } // HACK handle / separately because of the // metaInline/metaBlock distinction if ( childDomElement.nodeName.toLowerCase() === 'meta' || childDomElement.nodeName.toLowerCase() === 'link' ) { isLink = childDomElement.nodeName.toLowerCase() === 'link'; childDataElement = { 'type': branchHasContent ? 'metaInline' : 'metaBlock', 'attributes': { 'style': isLink ? 'link' : 'meta', 'key': childDomElement.getAttribute( isLink ? 'rel' : 'property' ) } }; if ( childDomElement.hasAttribute( isLink ? 'href' : 'content' ) ) { childDataElement.attributes.value = childDomElement.getAttribute( isLink ? 'href' : 'content' ); } // Preserve HTML attributes // FIXME the following is duplicated from getDataElementFromDomElement() // Include all attributes and prepend 'html/' to each attribute name for ( j = 0; j < childDomElement.attributes.length; j++ ) { // ..but exclude attributes we've already processed, // because they'll be overwritten otherwise *sigh* // FIXME this sucks, we need a new node type API so bad if ( childDomElement.attributes[j].name !== ( isLink ? 'rel' : 'property' ) && childDomElement.attributes[j].name !== ( isLink ? 'href' : 'content' ) ) { childDataElement.attributes['html/' + childDomElement.attributes[j].name] = childDomElement.attributes[j].value; } } data.push( childDataElement ); data.push( { 'type': branchHasContent ? '/metaInline' : '/metaBlock' } ); processNextWhitespace( childDataElement ); prevElement = childDataElement; break; } // Alienate anything with a mw: type that isn't registered // HACK because we don't actually have an RDFa type registry yet, // this hardcodes the set of recognized types rdfaType = childDomElement.getAttribute( 'rel' ) || childDomElement.getAttribute( 'typeof' ) || childDomElement.getAttribute( 'property' ); if ( rdfaType && rdfaType.match( /^mw:/ ) && !rdfaType.match( /^mw:WikiLink/ ) && !rdfaType.match( /^mw:ExtLink/ ) && !rdfaType.match( /^mw:Entity/ ) ) { alien = createAlien( childDomElement, branchHasContent ); if ( wrapping && alien[0].type === 'alienBlock' ) { stopWrapping(); } data = data.concat( alien ); processNextWhitespace( alien[0] ); prevElement = alien[0]; break; } // Detect and handle annotated content // HACK except for mw:Entity. We need a node API rewrite, badly annotation = this.getDataAnnotationFromDomElement( childDomElement ); if ( annotation && rdfaType !== 'mw:Entity' ) { // Start auto-wrapping of bare content if ( !wrapping && !branchHasContent ) { // Mark this paragraph as having been generated by // us, so we can strip it on the way out wrappingParagraph = { 'type': 'paragraph', 'internal': { 'generated': 'wrapper' } }; data.push( wrappingParagraph ); wrapping = true; wrappingIsOurs = true; processNextWhitespace( wrappingParagraph ); prevElement = wrappingParagraph; } // Append child element data data = data.concat( this.getDataFromDom( childDomElement, annotations.concat( [ annotation ] ), undefined, path, wrapping ) ); break; } // Look up child element type childDataElement = this.getDataElementFromDomElement( childDomElement, annotations ); if ( childDataElement ) { childIsContent = ve.dm.nodeFactory.isNodeContent( childDataElement.type ); // Check that something isn't terribly wrong if ( !( // Non-content child in a content container ( branchHasContent && !childIsContent ) || // Non-content child trying to break wrapping at // the wrong level ( wrapping && !wrappingIsOurs && !childIsContent ) ) ) { // End auto-wrapping of bare content from a previously processed node // but only if childDataElement is a non-content element if ( wrapping && wrappingIsOurs && !childIsContent ) { stopWrapping(); } if ( ve.dm.nodeFactory.canNodeHaveChildren( childDataElement.type ) ) { // Append child element data data = data.concat( this.getDataFromDom( childDomElement, [], childDataElement, path.concat( childDataElement.type ), wrapping ) ); } else { // Append empty node data.push( childDataElement ); data.push( { 'type': '/' + childDataElement.type } ); } processNextWhitespace( childDataElement ); prevElement = childDataElement; break; } // If something is wrong, fall through, and the bad child // will be alienated below. } // We don't know what this is, fall back to alien. alien = createAlien( childDomElement, branchHasContent ); // End auto-wrapping of bare content from a previously processed node // but only if we produced an alienBlock if ( wrapping && alien[0].type === 'alienBlock' ) { stopWrapping(); } data = data.concat( alien ); processNextWhitespace( alien[0] ); prevElement = alien[0]; break; case Node.TEXT_NODE: text = childDomElement.data; if ( text === '' ) { // Empty text node?!? break; } if ( !branchHasContent ) { // Strip and store outer whitespace if ( text.match( /^\s+$/ ) ) { // This text node is whitespace only if ( wrapping ) { // We're already wrapping, so output this whitespace // and store it in wrappedWhitespace (see // comment about wrappedWhitespace below) wrappedWhitespace = text; wrappedWhitespaceIndex = data.length; data = data.concat( ve.dm.Converter.getDataContentFromText( wrappedWhitespace, annotations ) ); } else { // We're not in wrapping mode, store this whitespace if ( !prevElement ) { if ( dataElement ) { // First child, store as inner // whitespace in the parent addWhitespace( dataElement, 1, text ); } // Else, WTF?!? This is not supposed to // happen, but it's not worth // throwing an exception over. } else { addWhitespace( prevElement, 3, text ); } nextWhitespace = text; wrappedWhitespace = ''; } // We're done, no actual text left to process break; } else { // This text node contains actual text // Separate the real text from the whitespace // HACK: . doesn't match newlines in JS, so use // [\s\S] to match any character matches = text.match( /^(\s*)([\s\S]*?)(\s*)$/ ); if ( !wrapping ) { // Wrap the text in a paragraph and output it // Mark this paragraph as having been generated by // us, so we can strip it on the way out wrappingParagraph = { 'type': 'paragraph', 'internal': { 'generated': 'wrapper' } }; processNextWhitespace( wrappingParagraph ); data.push( wrappingParagraph ); wrapping = true; wrappingIsOurs = true; // Only store leading whitespace if we just // started wrapping if ( matches[1] !== '' ) { if ( !prevElement ) { if ( dataElement ) { // First child, store as inner // whitespace in the parent addWhitespace( dataElement, 1, matches[1] ); } // Else, WTF?!? This is not supposed to // happen, but it's not worth // throwing an exception over. } else { addWhitespace( prevElement, 3, matches[1] ); } addWhitespace( wrappingParagraph, 0, matches[1] ); } } else { // We were already wrapping in a paragraph, // so the leading whitespace must be output data = data.concat( ve.dm.Converter.getDataContentFromText( matches[1], annotations ) ); } // Output the text sans whitespace data = data.concat( ve.dm.Converter.getDataContentFromText( matches[2], annotations ) ); // Don't store this in wrappingParagraph.internal.whitespace[3] // and nextWhitespace just yet. Instead, store it // in wrappedWhitespace. There might be more text // nodes after this one, so we output wrappedWhitespace // for now and undo that if it turns out this was // the last text node. We can't output it later // because we have to apply the correct annotations. wrappedWhitespace = matches[3]; wrappedWhitespaceIndex = data.length; data = data.concat( ve.dm.Converter.getDataContentFromText( wrappedWhitespace, annotations ) ); prevElement = wrappingParagraph; break; } } // Strip leading and trailing inner whitespace // (but only in non-annotation nodes) // and store it so it can be restored later. if ( annotations.length === 0 && i === 0 && dataElement && !ve.dm.nodeFactory.doesNodeHaveSignificantWhitespace( dataElement.type ) ) { // Strip leading whitespace from the first child matches = text.match( /^\s+/ ); if ( matches && matches[0] !== '' ) { addWhitespace( dataElement, 1, matches[0] ); text = text.substring( matches[0].length ); } } if ( annotations.length === 0 && i === domElement.childNodes.length - 1 && dataElement && !ve.dm.nodeFactory.doesNodeHaveSignificantWhitespace( dataElement.type ) ) { // Strip trailing whitespace from the last child matches = text.match( /\s+$/ ); if ( matches && matches[0] !== '' ) { addWhitespace( dataElement, 2, matches[0] ); text = text.substring( 0, text.length - matches[0].length ); } } // Annotate the text and output it data = data.concat( ve.dm.Converter.getDataContentFromText( text, annotations ) ); break; case Node.COMMENT_NODE: childDataElement = { 'type': branchHasContent ? 'metaInline' : 'metaBlock', 'attributes': { 'style': 'comment', 'text': childDomElement.data } }; data.push( childDataElement ); data.push( { 'type': branchHasContent ? '/metaInline' : '/metaBlock' } ); processNextWhitespace( childDataElement ); prevElement = childDataElement; break; } } // End auto-wrapping of bare content if ( wrapping && wrappingIsOurs ) { stopWrapping(); // Don't set wrapping = false here because it's checked below wrapping = true; } // If we're closing a node that doesn't have any children, but could contain a paragraph, // add a paragraph. This prevents things like empty list items childTypes = ve.dm.nodeFactory.getChildNodeTypes( branchType ); if ( branchType !== 'paragraph' && dataElement && data[data.length - 1] === dataElement && !wrapping && !ve.dm.nodeFactory.canNodeContainContent( branchType ) && !ve.dm.nodeFactory.isNodeContent( branchType ) && ( childTypes === null || ve.indexOf( 'paragraph', childTypes ) !== -1 ) ) { data.push( { 'type': 'paragraph', 'internal': { 'generated': 'empty' } } ); data.push( { 'type': '/paragraph' } ); } // Close element if ( dataElement ) { data.push( { 'type': '/' + dataElement.type } ); // Add the whitespace after the last child to the parent as innerPost if ( nextWhitespace !== '' ) { addWhitespace( dataElement, 2, nextWhitespace ); nextWhitespace = ''; } } // Don't return an empty document if ( branchType === 'document' && data.length === 0 ) { return [ { 'type': 'paragraph', 'internal': { 'generated': 'empty' } }, { 'type': '/paragraph' } ]; } return data; }; /** * Convert linear model data to an HTML DOM * * @method * @param {Array} data Linear model data * @returns {HTMLElement} Wrapper div containing the resulting HTML */ ve.dm.Converter.prototype.getDomFromData = function ( data ) { var text, i, j, k, annotations, annotation, annotationElement, dataElement, arr, childDomElement, pre, ours, theirs, parentDomElement, startClosingAt, isContentNode, changed, parentChanged, container = document.createElement( 'div' ), domElement = container, annotationStack = new ve.AnnotationSet(); for ( i = 0; i < data.length; i++ ) { if ( typeof data[i] === 'string' ) { // Text text = ''; // Continue forward as far as the plain text goes while ( typeof data[i] === 'string' ) { text += data[i]; i++; } // i points to the first non-text thing, go back one so we don't skip this later i--; // Add text domElement.appendChild( document.createTextNode( text ) ); } else if ( ve.isArray( data[i] ) || ( data[i].annotations !== undefined && ve.dm.nodeFactory.isNodeContent( data[i].type ) ) ) { // Annotated text or annotated nodes text = ''; while ( ve.isArray( data[i] ) || ( data[i].annotations !== undefined && ve.dm.nodeFactory.isNodeContent( data[i].type ) ) ) { annotations = data[i].annotations || data[i][1]; // Close annotations as needed // Go through annotationStack from bottom to top (low to high), // and find the first annotation that's not in annotations. startClosingAt = undefined; arr = annotationStack.get(); for ( j = 0; j < arr.length; j++ ) { annotation = arr[j]; if ( !annotations.contains( annotation ) ) { startClosingAt = j; break; } } if ( startClosingAt !== undefined ) { // Close all annotations from top to bottom (high to low) // until we reach startClosingAt for ( j = annotationStack.getLength() - 1; j >= startClosingAt; j-- ) { // Add text if needed if ( text.length > 0 ) { domElement.appendChild( document.createTextNode( text ) ); text = ''; } // Traverse up domElement = domElement.parentNode; // Remove from annotationStack annotationStack.removeAt( j ); } } // Open annotations as needed arr = annotations.get(); for ( j = 0; j < arr.length; j++ ) { annotation = arr[j]; if ( !annotationStack.contains( annotation ) ) { // Add text if needed if ( text.length > 0 ) { domElement.appendChild( document.createTextNode( text ) ); text = ''; } // Create new node and descend into it annotationElement = this.getDomElementFromDataAnnotation( annotation ); domElement.appendChild( annotationElement ); domElement = annotationElement; // Add to annotationStack annotationStack.push( annotation ); } } if ( data[i].annotations === undefined ) { // Annotated text text += data[i][0]; } else { // Annotated node // Add text if needed if ( text.length > 0 ) { domElement.appendChild( document.createTextNode( text ) ); text = ''; } // Insert the element domElement.appendChild( this.getDomElementFromDataElement( data[i] ) ); // Increment i once more so we skip over the closing as well i++; } i++; } // We're now at the first non-annotated thing, go back one so we don't skip this later i--; // Add any gathered text if ( text.length > 0 ) { domElement.appendChild( document.createTextNode( text ) ); text = ''; } // Close any remaining annotation nodes for ( j = annotationStack.getLength() - 1; j >= 0; j-- ) { // Traverse up domElement = domElement.parentNode; } // Clear annotationStack annotationStack = new ve.AnnotationSet(); } else if ( data[i].type !== undefined ) { dataElement = data[i]; // Element if ( dataElement.type.charAt( 0 ) === '/' ) { parentDomElement = domElement.parentNode; isContentNode = ve.dm.nodeFactory.isNodeContent( data[i].type.substr( 1 ) ); // Process whitespace // whitespace = [ outerPre, innerPre, innerPost, outerPost ] if ( !isContentNode && domElement.veInternal && domElement.veInternal.whitespace ) { // Process inner whitespace. innerPre is for sure legitimate // whitespace that should be inserted; if it was a duplicate // of our child's outerPre, we would have cleared it. pre = domElement.veInternal.whitespace[1]; if ( pre ) { if ( domElement.firstChild && domElement.firstChild.nodeType === 3 ) { // First child is a TextNode, prepend to it domElement.firstChild.insertData( 0, pre ); } else { // Prepend a TextNode domElement.insertBefore( document.createTextNode( pre ), domElement.firstChild ); } } ours = domElement.veInternal.whitespace[2]; if ( domElement.lastOuterPost === undefined ) { // This node didn't have any structural children // (i.e. it's a content-containing node), so there's // nothing to check innerPost against theirs = ours; } else { theirs = domElement.lastOuterPost; } if ( ours && ours === theirs ) { if ( domElement.lastChild && domElement.lastChild.nodeType === 3 ) { // Last child is a TextNode, append to it domElement.lastChild.appendData( ours ); } else { // Append a TextNode domElement.appendChild( document.createTextNode( ours ) ); } } // Tell the parent about our outerPost parentDomElement.lastOuterPost = domElement.veInternal.whitespace[3] || ''; } else if ( !isContentNode ) { // Use empty string, because undefined means there were no // structural children parentDomElement.lastOuterPost = ''; } // else don't touch lastOuterPost // If closing a generated wrapper node, unwrap it // It would be nicer if we could avoid generating in the first // place, but then remembering where we have to skip ascending // to the parent would be tricky. // We unwrap all nodes with generated=wrapper, as well as nodes that // have generated=empty and are empty. if ( domElement.veInternal && ( domElement.veInternal.generated === 'wrapper' || ( domElement.veInternal.generated === 'empty' && domElement.childNodes.length === 0 ) ) ) { while ( domElement.firstChild ) { parentDomElement.insertBefore( domElement.firstChild, domElement ); } // Transfer change markers changed = domElement.getAttribute( 'data-ve-changed' ); if ( changed ) { parentChanged = parentDomElement.getAttribute( 'data-ve-changed' ); if ( parentChanged ) { changed = $.parseJSON( changed ); parentChanged = $.parseJSON( parentChanged ); for ( k in changed ) { if ( k in parentChanged ) { parentChanged[k] += changed[k]; } else { parentChanged[k] = changed[k]; } } parentDomElement.setAttribute( 'data-ve-changed', JSON.stringify( parentChanged ) ); } else { parentDomElement.setAttribute( 'data-ve-changed', changed ); } } parentDomElement.removeChild( domElement ); } delete domElement.veInternal; delete domElement.lastOuterPost; // Ascend to parent node domElement = parentDomElement; } else { // Create node from data childDomElement = this.getDomElementFromDataElement( dataElement ); // Add reference to internal data if ( dataElement.internal ) { childDomElement.veInternal = dataElement.internal; } // Add element domElement.appendChild( childDomElement ); // Descend into child node parentDomElement = domElement; domElement = childDomElement; // Process outer whitespace // Every piece of outer whitespace is duplicated somewhere: // each node's outerPost is duplicated as the next node's // outerPre, the first node's outerPre is the parent's // innerPre, and the last node's outerPost is the parent's // innerPost. For each piece of whitespace, we verify that // the duplicate matches. If it doesn't, we take that to // mean the user has messed with it and don't output any // whitespace. if ( domElement.veInternal && domElement.veInternal.whitespace ) { // Process this node's outerPre ours = domElement.veInternal.whitespace[0]; theirs = undefined; if ( domElement.previousSibling ) { // Get previous sibling's outerPost theirs = parentDomElement.lastOuterPost; } else if ( parentDomElement === container ) { // outerPre of the very first node in the document, this one // has no duplicate theirs = ours; } else { // First child, get parent's innerPre if ( parentDomElement.veInternal && parentDomElement.veInternal.whitespace ) { theirs = parentDomElement.veInternal.whitespace[1]; // Clear after use so it's not used twice parentDomElement.veInternal.whitespace[1] = undefined; } // else theirs=undefined } if ( ours && ours === theirs ) { // Matches the duplicate, insert a TextNode parentDomElement.insertBefore( document.createTextNode( ours ), domElement ); } } } } } // Process the outerPost whitespace of the very last node if ( container.lastOuterPost !== undefined ) { if ( container.lastChild && container.lastChild.nodeType === 3 ) { // Last child is a TextNode, append to it container.lastChild.appendData( container.lastOuterPost ); } else { // Append a TextNode container.appendChild( document.createTextNode( container.lastOuterPost ) ); } delete container.lastOuterPost; } // Unwrap multi-child alien wrappers $( container ).find( '[data-ve-multi-child-alien-wrapper]' ).each( function() { $( this ).replaceWith( $( this ).contents() ); } ); // Workaround for bug 42469: if a
 starts with a newline, that means .innerHTML will
	// screw up and stringify it with one fewer newline. Work around this by adding a newline.
	// If we don't see a leading newline, we still don't know if the original HTML was
	// 
Foo
or
\nFoo
, but that's a syntactic difference, not a semantic // one, and handling that is Parsoid's job. $( container ).find( 'pre' ).each( function() { var matches; if ( this.firstChild.nodeType === Node.TEXT_NODE ) { matches = this.firstChild.data.match( /^(\r\n|\r|\n)/ ); if ( matches && matches[1] ) { // Prepend a newline exactly like the one we saw this.firstChild.insertData( 0, matches[1] ); } } } ); return container; }; /* Initialization */ ve.dm.converter = new ve.dm.Converter( ve.dm.nodeFactory, ve.dm.annotationFactory );