mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-09-27 20:26:46 +00:00
a835c03bc1
Rather than meta-things being special kinds of nodes, they are now a separate class of things (MetaItems) along with Nodes and Annotations. * Created a generic ve.dm.MetaItem that meta items inherit from. There will be actual instances of this class as well in the upcoming meta group code. * Renamed MetaNode to AlienMetaItem, MWMetaNode to MWMetaItem, 'metaBlock'/'metaInline' to 'alienMeta' * Created a MetaItemFactory, handle meta items in the ModelRegistry * Kill ve.dm.Node.static.isMeta, now obsolete ve.dm.Converter: * Pass in the MetaItemFactory * Look up data element types in the ModelRegistry rather than the NodeFactory, because they can be either nodes or meta items * Document createDataElement() and make explicit that modelClass can be either a node or a meta item * Handle meta items in getDataFromDom() * In getDomFromData(), check the MetaItemFactory as well as the NodeFactory Change-Id: I893709c6f3aa00f85c1b905b70f9f4e597bdeada
911 lines
31 KiB
JavaScript
911 lines
31 KiB
JavaScript
/*!
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* VisualEditor DataModel Converter class.
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*
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* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
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* @license The MIT License (MIT); see LICENSE.txt
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*/
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/**
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* DataModel converter.
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*
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* Converts between HTML DOM and VisualEditor linear data.
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*
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* @class
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* @constructor
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* @param {ve.dm.ModelRegistry} modelRegistry
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* @param {ve.dm.NodeFactory} nodeFactory
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* @param {ve.dm.AnnotationFactory} annotationFactory
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*/
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ve.dm.Converter = function VeDmConverter( modelRegistry, nodeFactory, annotationFactory, metaItemFactory ) {
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// Properties
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this.modelRegistry = modelRegistry;
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this.nodeFactory = nodeFactory;
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this.annotationFactory = annotationFactory;
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this.metaItemFactory = metaItemFactory;
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};
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/* Static Methods */
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/**
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* Get linear model data from a string optionally applying annotations
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*
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* @static
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* @param {string} text Plain text to convert
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* @param {ve.AnnotationSet} [annotations] Annotations to apply
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* @returns {Array} Linear model data, one element per character
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*/
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ve.dm.Converter.getDataContentFromText = function ( text, annotations ) {
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var i, characters = text.split( '' );
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if ( !annotations || annotations.isEmpty() ) {
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return characters;
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}
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// Apply annotations to characters
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for ( i = 0; i < characters.length; i++ ) {
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// Make a shallow copy of the annotationSet object, otherwise adding an annotation to one
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// character automatically adds it to all of others as well, annotations should be treated
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// as immutable, so it's OK to share references, but annotation sets are not immutable, so
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// it's not safe to share references - each annotated character needs its own set
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characters[i] = [characters[i], annotations.clone()];
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}
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return characters;
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};
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/* Methods */
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/**
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* Get the DOM element for a given linear model element.
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*
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* This invokes the toDomElements function registered for the element type.
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*
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* @method
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* @param {Object} dataElement Linear model element
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* @param {HTMLDocument} doc Document to create DOM elements in
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* @returns {HTMLElement|boolean} DOM element, or false if the element cannot be converted
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*/
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ve.dm.Converter.prototype.getDomElementsFromDataElement = function ( dataElement, doc ) {
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var domElements, dataElementAttributes, key, matches,
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nodeClass = this.modelRegistry.lookup( dataElement.type );
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if ( !nodeClass ) {
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throw new Error( 'Attempting to convert unknown data element type ' + dataElement.type );
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}
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domElements = nodeClass.static.toDomElements( dataElement, doc );
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if ( !domElements || !domElements.length ) {
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throw new Error( 'toDomElements() failed to return an array when converting element of type ' + dataElement.type );
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}
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dataElementAttributes = dataElement.attributes;
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if ( dataElementAttributes ) {
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for ( key in dataElementAttributes ) {
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// Only include 'html/i/*' attributes and strip the 'html/i/' from the beginning of the name
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/*jshint regexp:false */
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matches = key.match( /^html\/(\d+)\/(.*)$/ );
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if ( matches ) {
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if ( domElements[matches[1]] && !domElements[matches[1]].hasAttribute( matches[2] ) ) {
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domElements[matches[1]].setAttribute( matches[2], dataElementAttributes[key] );
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}
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}
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}
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}
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// Change markers
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if (
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dataElement.internal && dataElement.internal.changed &&
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!ve.isEmptyObject( dataElement.internal.changed ) &&
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ve.init.platform.useChangeMarkers()
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) {
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domElements[0].setAttribute( 'data-ve-changed',
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JSON.stringify( dataElement.internal.changed )
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);
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}
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return domElements;
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};
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/**
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* Create a data element from a DOM element.
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* @param {ve.dm.Node|ve.dm.MetaItem} modelClass Model class to use for conversion
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* @param {HTMLElement[]} domElements DOM elements to convert
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* @param {Object} context Converter context to pass to toDataElement() (will be cloned)
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* @returns {Object} Data element
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*/
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ve.dm.Converter.prototype.createDataElement = function ( modelClass, domElements, context ) {
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var i, j, dataElement, dataElementAttributes, domElementAttributes, domElementAttribute;
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dataElement = modelClass.static.toDataElement( domElements, ve.copyObject( context ) );
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if ( modelClass.static.storeHtmlAttributes && dataElement ) {
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for ( i = 0; i < domElements.length; i++ ) {
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domElementAttributes = domElements[i].attributes;
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if ( domElementAttributes && domElementAttributes.length ) {
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dataElementAttributes = dataElement.attributes = dataElement.attributes || {};
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// Include all attributes and prepend 'html/i/' to each attribute name
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for ( j = 0; j < domElementAttributes.length; j++ ) {
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domElementAttribute = domElementAttributes[j];
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dataElementAttributes['html/' + i + '/' + domElementAttribute.name] =
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domElementAttribute.value;
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}
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}
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}
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}
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return dataElement;
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};
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/**
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* Build an HTML DOM node for a linear model annotation.
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*
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* @method
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* @param {Object} dataAnnotation Annotation object
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* @returns {HTMLElement} HTML DOM node
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*/
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ve.dm.Converter.prototype.getDomElementFromDataAnnotation = function ( dataAnnotation, doc ) {
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var htmlData = dataAnnotation.toHTML(),
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domElement = doc.createElement( htmlData.tag );
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ve.setDomAttributes( domElement, htmlData.attributes );
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return domElement;
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};
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/**
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* Convert an HTML document to a linear model.
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* @param {HTMLDocument} doc HTML document to convert
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* @returns {Array} Linear model data
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*/
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ve.dm.Converter.prototype.getDataFromDom = function ( doc ) {
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// Possibly do things with doc and the head in the future
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return this.getDataFromDomRecursion( doc.body );
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};
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/**
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* Recursive implementation of getDataFromDom(). For internal use.
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*
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* @method
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* @param {HTMLElement} domElement HTML element to convert
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* @param {ve.AnnotationSet} [annotations] Annotations to apply to the generated data
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* @param {Object} [dataElement] Data element to wrap the returned data in
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* @param {Array} [path] Array of linear model element types
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* @param {boolean} [alreadyWrapped] Whether the caller has already started wrapping bare content in a paragraph
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* @returns {Array} Linear model data
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*/
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ve.dm.Converter.prototype.getDataFromDomRecursion = function ( domElement, annotations,
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dataElement, path, alreadyWrapped ) {
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function addWhitespace( element, index, whitespace ) {
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if ( !element.internal ) {
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element.internal = {};
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}
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// whitespace = [ outerPre, innerPre, innerPost, outerPost ]
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// <tag> text </tag> <nextTag>
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// ^^^^^^^^ ^^^^^^^^ ^^^^^^^^^ ^^^^^^^^^
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// outerPre innerPre innerPost outerPost
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if ( !element.internal.whitespace ) {
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element.internal.whitespace = [];
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}
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if ( !element.internal.whitespace[index] ) {
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element.internal.whitespace[index] = '';
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}
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element.internal.whitespace[index] = whitespace;
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}
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function processNextWhitespace( element ) {
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// This function uses and changes nextWhitespace in the outer function's scope,
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// which means it's not really a function but more of a shortcut.
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if ( nextWhitespace !== '' ) {
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addWhitespace( element, 0, nextWhitespace );
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nextWhitespace = '';
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}
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}
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function startWrapping() {
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// Mark this paragraph as having been generated by
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// us, so we can strip it on the way out
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wrappingParagraph = {
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'type': 'paragraph',
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'internal': { 'generated': 'wrapper' }
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};
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data.push( wrappingParagraph );
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context.inWrapper = true;
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context.canCloseWrapper = true;
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context.expectingContent = true;
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processNextWhitespace( wrappingParagraph );
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}
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function stopWrapping() {
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if ( wrappedWhitespace !== '' ) {
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// Remove wrappedWhitespace from data
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data.splice( wrappedWhitespaceIndex, wrappedWhitespace.length );
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addWhitespace( wrappingParagraph, 3, wrappedWhitespace );
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nextWhitespace = wrappedWhitespace;
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}
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data.push( { 'type': '/paragraph' } );
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wrappingParagraph = undefined;
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context.inWrapper = false;
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context.canCloseWrapper = false;
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context.expectingContent = originallyExpectingContent;
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}
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function getAboutGroup( el ) {
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var textNodes = [], aboutGroup = [ el ], elAbout, node;
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if ( !el.getAttribute || el.getAttribute( 'about' ) === null ) {
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return aboutGroup;
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}
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elAbout = el.getAttribute( 'about' );
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for ( node = el.nextSibling; node; node = node.nextSibling ) {
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if ( !node.getAttribute ) {
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// Text nodes don't have a getAttribute() method. Thanks HTML DOM,
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// that's really helpful ^^
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textNodes.push( node );
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continue;
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}
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if ( node.getAttribute( 'about' ) === elAbout ) {
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aboutGroup = aboutGroup.concat( textNodes );
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textNodes = [];
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aboutGroup.push( node );
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} else {
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break;
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}
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}
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return aboutGroup;
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}
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// Fallback to defaults
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annotations = annotations || new ve.AnnotationSet();
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path = path || ['document'];
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var i, childDomElement, childDomElements, childDataElement, text, childTypes, matches,
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wrappingParagraph, prevElement, childAnnotations, modelName, modelClass,
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annotation, childIsContent, aboutGroup,
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data = [],
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branchType = path[path.length - 1],
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branchHasContent = this.nodeFactory.canNodeContainContent( branchType ),
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originallyExpectingContent = branchHasContent || !annotations.isEmpty(),
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nextWhitespace = '',
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wrappedWhitespace = '',
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wrappedWhitespaceIndex,
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context = {
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'expectingContent': originallyExpectingContent,
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'inWrapper': alreadyWrapped,
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'canCloseWrapper': false
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};
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// Open element
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if ( dataElement ) {
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data.push( dataElement );
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}
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// Add contents
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for ( i = 0; i < domElement.childNodes.length; i++ ) {
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childDomElement = domElement.childNodes[i];
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switch ( childDomElement.nodeType ) {
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case Node.ELEMENT_NODE:
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modelName = this.modelRegistry.matchElement( childDomElement );
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modelClass = this.modelRegistry.lookup( modelName ) || ve.dm.AlienNode;
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if ( modelClass.prototype instanceof ve.dm.Annotation ) {
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annotation = this.annotationFactory.create( modelName, childDomElement );
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// Start wrapping if needed
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if ( !context.inWrapper && !context.expectingContent ) {
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startWrapping();
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prevElement = wrappingParagraph;
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}
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// Append child element data
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childAnnotations = annotations.clone();
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childAnnotations.push( annotation );
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data = data.concat(
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this.getDataFromDomRecursion(
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childDomElement, childAnnotations,
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undefined, path, context.inWrapper
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)
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);
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} else {
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// Node or meta item
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aboutGroup = getAboutGroup( childDomElement );
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childDomElements = modelClass.static.enableAboutGrouping ?
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aboutGroup : [ childDomElement ];
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childDataElement = this.createDataElement( modelClass, childDomElements, context );
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if ( modelClass.prototype instanceof ve.dm.MetaItem ) {
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// No additional processing needed
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// Write to data and continue
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data.push( childDataElement );
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data.push( { 'type': '/' + childDataElement.type } );
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processNextWhitespace( childDataElement );
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prevElement = childDataElement;
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break;
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}
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childIsContent = this.nodeFactory.isNodeContent( childDataElement.type );
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// If childIsContent isn't what we expect, adjust
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if ( !context.expectingContent && childIsContent ) {
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startWrapping();
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prevElement = wrappingParagraph;
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} else if ( context.expectingContent && !childIsContent ) {
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if ( context.inWrapper && context.canCloseWrapper ) {
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stopWrapping();
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} else {
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// Alienate
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modelClass = ve.dm.AlienNode;
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childDomElements = modelClass.static.enableAboutGrouping ?
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aboutGroup : [ childDomElement ];
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childDataElement = this.createDataElement( modelClass, childDomElements, context );
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childIsContent = this.nodeFactory.isNodeContent( childDataElement.type );
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}
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}
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// Annotate child
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if ( childIsContent && !annotations.isEmpty() ) {
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childDataElement.annotations = annotations.clone();
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}
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// Output child and its children, if any
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if (
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childDomElements.length === 1 &&
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this.nodeFactory.canNodeHaveChildren( childDataElement.type )
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) {
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// Recursion
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// Opening and closing elements are added by the recursion too
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data = data.concat(
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this.getDataFromDomRecursion(
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childDomElement,
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new ve.AnnotationSet(),
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childDataElement,
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path.concat( childDataElement.type ),
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context.inWrapper
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)
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);
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} else {
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// Write an opening and closing
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data.push( childDataElement );
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data.push( { 'type': '/' + childDataElement.type } );
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}
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processNextWhitespace( childDataElement );
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prevElement = childDataElement;
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// In case we consumed multiple childDomElements, adjust i accordingly
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i += childDomElements.length - 1;
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}
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break;
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case Node.TEXT_NODE:
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text = childDomElement.data;
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if ( text === '' ) {
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// Empty text node?!?
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break;
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}
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if ( !originallyExpectingContent ) {
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// Strip and store outer whitespace
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if ( text.match( /^\s+$/ ) ) {
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// This text node is whitespace only
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if ( context.inWrapper ) {
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// We're already wrapping, so output this whitespace
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// and store it in wrappedWhitespace (see
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// comment about wrappedWhitespace below)
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wrappedWhitespace = text;
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wrappedWhitespaceIndex = data.length;
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data = data.concat(
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ve.dm.Converter.getDataContentFromText( wrappedWhitespace, annotations )
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);
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} else {
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// We're not in wrapping mode, store this whitespace
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if ( !prevElement ) {
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if ( dataElement ) {
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// First child, store as inner
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// whitespace in the parent
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addWhitespace( dataElement, 1, text );
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}
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// Else, WTF?!? This is not supposed to
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// happen, but it's not worth
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// throwing an exception over.
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} else {
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addWhitespace( prevElement, 3, text );
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}
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nextWhitespace = text;
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wrappedWhitespace = '';
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}
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// We're done, no actual text left to process
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break;
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} else {
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// This text node contains actual text
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// Separate the real text from the whitespace
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// HACK: . doesn't match newlines in JS, so use
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// [\s\S] to match any character
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matches = text.match( /^(\s*)([\s\S]*?)(\s*)$/ );
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if ( !context.inWrapper ) {
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// Wrap the text in a paragraph and output it
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startWrapping();
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// Only store leading whitespace if we just
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// started wrapping
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if ( matches[1] !== '' ) {
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if ( !prevElement ) {
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if ( dataElement ) {
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// First child, store as inner
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// whitespace in the parent
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addWhitespace( dataElement, 1, matches[1] );
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}
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// Else, WTF?!? This is not supposed to
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// happen, but it's not worth
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// throwing an exception over.
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} else {
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addWhitespace( prevElement, 3, matches[1] );
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}
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addWhitespace( wrappingParagraph, 0, matches[1] );
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}
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} else {
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// We were already wrapping in a paragraph,
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// so the leading whitespace must be output
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data = data.concat(
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ve.dm.Converter.getDataContentFromText( matches[1], annotations )
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);
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}
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// Output the text sans whitespace
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data = data.concat(
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ve.dm.Converter.getDataContentFromText( matches[2], annotations )
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);
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// Don't store this in wrappingParagraph.internal.whitespace[3]
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// and nextWhitespace just yet. Instead, store it
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// in wrappedWhitespace. There might be more text
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// nodes after this one, so we output wrappedWhitespace
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// for now and undo that if it turns out this was
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// the last text node. We can't output it later
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// because we have to apply the correct annotations.
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wrappedWhitespace = matches[3];
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wrappedWhitespaceIndex = data.length;
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data = data.concat(
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ve.dm.Converter.getDataContentFromText( wrappedWhitespace, annotations )
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);
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prevElement = wrappingParagraph;
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break;
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}
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}
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// Strip leading and trailing inner whitespace
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// (but only in non-annotation nodes)
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// and store it so it can be restored later.
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if (
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annotations.isEmpty() && i === 0 && dataElement &&
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!this.nodeFactory.doesNodeHaveSignificantWhitespace( dataElement.type )
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) {
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// Strip leading whitespace from the first child
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matches = text.match( /^\s+/ );
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if ( matches && matches[0] !== '' ) {
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addWhitespace( dataElement, 1, matches[0] );
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text = text.substring( matches[0].length );
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}
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}
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if (
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annotations.isEmpty() &&
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i === domElement.childNodes.length - 1 &&
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dataElement &&
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!this.nodeFactory.doesNodeHaveSignificantWhitespace( dataElement.type )
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) {
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// Strip trailing whitespace from the last child
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matches = text.match( /\s+$/ );
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if ( matches && matches[0] !== '' ) {
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addWhitespace( dataElement, 2, matches[0] );
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text = text.substring( 0,
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text.length - matches[0].length );
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}
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}
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// Annotate the text and output it
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data = data.concat(
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ve.dm.Converter.getDataContentFromText( text, annotations )
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);
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break;
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case Node.COMMENT_NODE:
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// TODO treat this as a node with nodeName #comment
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childDataElement = {
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'type': 'alienMeta',
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'attributes': {
|
|
'style': 'comment',
|
|
'text': childDomElement.data
|
|
}
|
|
};
|
|
data.push( childDataElement );
|
|
data.push( { 'type': '/alienMeta' } );
|
|
processNextWhitespace( childDataElement );
|
|
prevElement = childDataElement;
|
|
break;
|
|
}
|
|
}
|
|
// End auto-wrapping of bare content
|
|
if ( context.inWrapper && context.canCloseWrapper ) {
|
|
stopWrapping();
|
|
// HACK: don't set context.inWrapper = false here because it's checked below
|
|
context.inWrapper = 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 = this.nodeFactory.getChildNodeTypes( branchType );
|
|
if ( branchType !== 'paragraph' && dataElement && data[data.length - 1] === dataElement &&
|
|
!context.inWrapper && !this.nodeFactory.canNodeContainContent( branchType ) &&
|
|
!this.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 {HTMLDocument} Document containing the resulting HTML
|
|
*/
|
|
ve.dm.Converter.prototype.getDomFromData = function ( data ) {
|
|
var text, i, j, k, annotations, annotation, annotationElement, dataElement, arr,
|
|
childDomElements, pre, ours, theirs, parentDomElement, lastChild, startClosingAt,
|
|
isContentNode, changed, parentChanged, sibling, previousSiblings, doUnwrap, textNode,
|
|
doc = ve.createDocumentFromHTML( '' ),
|
|
container = doc.body,
|
|
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( doc.createTextNode( text ) );
|
|
} else if (
|
|
ve.isArray( data[i] ) ||
|
|
(
|
|
data[i].annotations !== undefined && (
|
|
this.metaItemFactory.lookup( data[i].type ) ||
|
|
this.nodeFactory.isNodeContent( data[i].type )
|
|
)
|
|
)
|
|
) {
|
|
// Annotated text or annotated nodes
|
|
text = '';
|
|
while (
|
|
ve.isArray( data[i] ) ||
|
|
(
|
|
data[i].annotations !== undefined &&
|
|
this.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( doc.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( doc.createTextNode( text ) );
|
|
text = '';
|
|
}
|
|
// Create new node and descend into it
|
|
annotationElement = this.getDomElementFromDataAnnotation( annotation, doc );
|
|
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( doc.createTextNode( text ) );
|
|
text = '';
|
|
}
|
|
// Insert the elements
|
|
childDomElements = this.getDomElementsFromDataElement( data[i], doc );
|
|
for ( j = 0; j < childDomElements.length; j++ ) {
|
|
domElement.appendChild( childDomElements[j] );
|
|
}
|
|
// 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( doc.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 = this.metaItemFactory.lookup( data[i].type.substr( 1 ) ) ||
|
|
this.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 === Node.TEXT_NODE
|
|
) {
|
|
// First child is a TextNode, prepend to it
|
|
domElement.firstChild.insertData( 0, pre );
|
|
} else {
|
|
// Prepend a TextNode
|
|
textNode = doc.createTextNode( pre );
|
|
textNode.veIsWhitespace = true;
|
|
domElement.insertBefore(
|
|
textNode,
|
|
domElement.firstChild
|
|
);
|
|
}
|
|
}
|
|
lastChild = domElement.veInternal.childDomElements ?
|
|
domElement.veInternal
|
|
.childDomElements[domElement.veInternal.childDomElements.length - 1]
|
|
.lastChild :
|
|
domElement.lastChild;
|
|
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 ( lastChild && lastChild.nodeType === Node.TEXT_NODE ) {
|
|
// Last child is a TextNode, append to it
|
|
domElement.lastChild.appendData( ours );
|
|
} else {
|
|
// Append a TextNode
|
|
textNode = doc.createTextNode( ours );
|
|
textNode.veIsWhitespace = true;
|
|
domElement.appendChild(
|
|
textNode
|
|
);
|
|
}
|
|
}
|
|
// 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
|
|
|
|
// Logic to unwrap empty & wrapper nodes.
|
|
// 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.
|
|
doUnwrap = false;
|
|
if( domElement.veInternal ) {
|
|
switch( domElement.veInternal.generated ) {
|
|
case 'empty':
|
|
// 'empty' elements - first ensure they are actually empty
|
|
if ( domElement.childNodes.length === 0 && (
|
|
// then check that we are the last child
|
|
// before unwrapping (and therefore destroying)
|
|
i === data.length - 1 ||
|
|
data[i + 1].type.charAt(0) === '/'
|
|
)
|
|
) {
|
|
doUnwrap = true;
|
|
}
|
|
break;
|
|
case 'wrapper':
|
|
// 'wrapper' elements - ensure there is a block level
|
|
// element between this element and the previous sibling
|
|
// wrapper or parent node
|
|
doUnwrap = true;
|
|
previousSiblings = domElement.parentElement.childNodes;
|
|
// Note: previousSiblings includes the current element
|
|
// so we only go up to length - 2
|
|
for( j = previousSiblings.length - 2; j >= 0; j-- ) {
|
|
sibling = previousSiblings[j];
|
|
if( sibling.nodeType === Node.TEXT_NODE && !sibling.veIsWhitespace ) {
|
|
// we've found an unwrapped paragraph so don't unwrap
|
|
doUnwrap = false;
|
|
break;
|
|
}
|
|
if( ve.isBlockElement( sibling ) ) {
|
|
// there is a block element before the next unwrapped node
|
|
// so it's safe to unwrap
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if( doUnwrap ) {
|
|
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
|
|
childDomElements = this.getDomElementsFromDataElement( dataElement, doc );
|
|
// Add reference to internal data
|
|
childDomElements[0].veInternal = ve.extendObject(
|
|
{ 'childDomElements': childDomElements },
|
|
dataElement.internal || {}
|
|
);
|
|
// Add elements
|
|
for ( j = 0; j < childDomElements.length; j++ ) {
|
|
domElement.appendChild( childDomElements[j] );
|
|
}
|
|
// Descend into the first child node
|
|
parentDomElement = domElement;
|
|
domElement = childDomElements[0];
|
|
|
|
// 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
|
|
textNode = doc.createTextNode( ours );
|
|
textNode.veIsWhitespace = true;
|
|
parentDomElement.insertBefore(
|
|
textNode,
|
|
domElement
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Process the outerPost whitespace of the very last node
|
|
if ( container.lastOuterPost !== undefined ) {
|
|
if ( container.lastChild && container.lastChild.nodeType === Node.TEXT_NODE ) {
|
|
// Last child is a TextNode, append to it
|
|
container.lastChild.appendData( container.lastOuterPost );
|
|
} else {
|
|
// Append a TextNode
|
|
container.appendChild( doc.createTextNode( container.lastOuterPost ) );
|
|
}
|
|
delete container.lastOuterPost;
|
|
}
|
|
|
|
// Workaround for bug 42469: if a <pre> 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
|
|
// <pre>Foo</pre> or <pre>\nFoo</pre> , 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 doc;
|
|
};
|
|
|
|
/* Initialization */
|
|
|
|
ve.dm.converter = new ve.dm.Converter( ve.dm.modelRegistry, ve.dm.nodeFactory, ve.dm.annotationFactory, ve.dm.metaItemFactory );
|