mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-16 02:51:50 +00:00
a9d391272e
By using annotation indexes only we can avoid a lot of ve.getHash calls. This reduces the number of getHash calls on load of [[:en:Argentina]] from ~60,000 to ~2,000. Bug: 52013 Change-Id: I0bc9aa8feea5f7e4e90a5fcd829de57cab803c15
1455 lines
50 KiB
JavaScript
1455 lines
50 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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this.doc = null;
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this.documentData = null;
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this.store = null;
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this.internalList = null;
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this.contextStack = null;
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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.dm.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, len,
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characters = ve.splitClusters( text );
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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, len = characters.length; i < len; i++ ) {
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// Just store the annotations' indexes from the index-value store
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characters[i] = [characters[i], annotations.getIndexes().slice()];
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}
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return characters;
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};
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/**
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* Utility function for annotation rendering. Transforms one set of annotations into another
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* by opening and closing annotations. Each time an annotation is opened or closed, the associated
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* callback is called with the annotation passed as a parameter.
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*
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* Note that currentSet will be modified, and will be equal to targetSet once this function returns.
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*
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* @static
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* @param {ve.dm.AnnotationSet} currentSet The set of annotations currently opened. Will be modified.
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* @param {ve.dm.AnnotationSet} targetSet The set of annotations we want to have.
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* @param {Function} open Callback called when an annotation is opened. Passed a ve.dm.Annotation.
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* @param {Function} close Callback called when an annotation is closed. Passed a ve.dm.Annotation.
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*/
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ve.dm.Converter.openAndCloseAnnotations = function ( currentSet, targetSet, open, close ) {
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var i, len, index, startClosingAt, currentSetOpen, targetSetOpen;
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// Close annotations as needed
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// Go through annotationStack from bottom to top (low to high),
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// and find the first annotation that's not in annotations.
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targetSetOpen = targetSet.clone();
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for ( i = 0, len = currentSet.getLength(); i < len; i++ ) {
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index = currentSet.getIndex( i );
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// containsComparableForSerialization is expensive,
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// so do a simple contains check first
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if (
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targetSetOpen.containsIndex( index ) ||
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targetSetOpen.containsComparableForSerialization( currentSet.get( i ) )
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) {
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targetSetOpen.removeIndex( index );
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} else {
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startClosingAt = i;
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break;
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}
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}
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if ( startClosingAt !== undefined ) {
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// Close all annotations from top to bottom (high to low)
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// until we reach startClosingAt
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for ( i = currentSet.getLength() - 1; i >= startClosingAt; i-- ) {
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close( currentSet.get( i ) );
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// Remove from currentClone
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currentSet.removeAt( i );
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}
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}
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currentSetOpen = currentSet.clone();
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// Open annotations as needed
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for ( i = 0, len = targetSet.getLength(); i < len; i++ ) {
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index = targetSet.getIndex( i );
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// containsComparableForSerialization is expensive,
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// so do a simple contains check first
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if (
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currentSetOpen.containsIndex( index ) ||
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currentSetOpen.containsComparableForSerialization( targetSet.get( i ) )
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) {
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// If an annotation is already open remove it from the currentSetOpen list
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// as it may exist multiple times in the targetSet, and so may need to be
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// opened again
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currentSetOpen.removeIndex( index );
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} else {
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open( targetSet.get( i ) );
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// Add to currentClone
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currentSet.pushIndex( index );
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}
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}
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};
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/**
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* Build an HTML attribute list for attribute preservation.
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*
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* The attribute list is an array of objects, one for each DOM element. Each object contains a
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* map with attribute keys and values in .values, an (ordered) array of attribute keys in .keys,
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* and an array of attribute lists for the child nodes in .children .
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*
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* @static
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* @param {HTMLElement[]} domElements Array of DOM elements to build attribute list for
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* @param {boolean|string|RegExp|Array|Object} spec Attribute specification, see ve.dm.Model
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* @param {boolean} [deep=false] If true, recurse into children. If false, .children will be empty
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* @param {Object[]} [attributeList] Existing attribute list to populate; used for recursion
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* @returns {Object[]|undefined} Attribute list, or undefined if empty
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*/
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ve.dm.Converter.buildHtmlAttributeList = function ( domElements, spec, deep, attributeList ) {
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var i, ilen, j, jlen, domAttributes, childList, empty = true;
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attributeList = attributeList || [];
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for ( i = 0, ilen = domElements.length; i < ilen; i++ ) {
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domAttributes = domElements[i].attributes || [];
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attributeList[i] = { 'values': {} };
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for ( j = 0, jlen = domAttributes.length; j < jlen; j++ ) {
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if ( ve.dm.Model.matchesAttributeSpec( domAttributes[j].name, spec ) ) {
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attributeList[i].values[domAttributes[j].name] = domAttributes[j].value;
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empty = false;
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}
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}
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if ( deep ) {
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attributeList[i].children = [];
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childList = ve.dm.Converter.buildHtmlAttributeList(
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// Use .children rather than .childNodes so we don't mess around with things that
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// can't have attributes anyway. Unfortunately, non-element nodes have .children
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// set to undefined so we have to coerce it to an array in that case.
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domElements[i].children || [], spec, deep, attributeList[i].children
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);
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if ( childList ) {
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empty = false;
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} else {
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delete attributeList[i].children;
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}
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}
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}
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return empty ? undefined : attributeList;
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};
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/**
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* Render an attribute list onto a set of DOM elements.
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*
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* Attributes set to undefined will be removed. The attribute specification restricts which
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* attributes are rendered.
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*
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* @static
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* @param {Object[]} attributeList Attribute list, see buildHtmlAttributeList()
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* @param {HTMLElement[]} domElements Array of DOM elements to render onto
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* @param {boolean|string|RegExp|Array|Object} [spec=true] Attribute specification, see ve.dm.Model
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* @param {boolean} [overwrite=false] If true, overwrite attributes that are already set
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*/
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ve.dm.Converter.renderHtmlAttributeList = function ( attributeList, domElements, spec, overwrite ) {
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var i, ilen, key, values;
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if ( spec === undefined ) {
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spec = true;
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}
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if ( spec === false ) {
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return;
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}
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for ( i = 0, ilen = attributeList.length; i < ilen; i++ ) {
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if ( !domElements[i] ) {
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continue;
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}
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values = attributeList[i].values;
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for ( key in values ) {
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if ( ve.dm.Model.matchesAttributeSpec( key, spec ) ) {
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if ( values[key] === undefined ) {
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domElements[i].removeAttribute( key );
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} else if ( overwrite || !domElements[i].hasAttribute( key ) ) {
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domElements[i].setAttribute( key, values[key] );
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}
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}
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}
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if ( attributeList[i].children ) {
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ve.dm.Converter.renderHtmlAttributeList(
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attributeList[i].children, domElements[i].children, spec
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);
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}
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}
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};
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/* Methods */
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/**
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* Check whether this converter instance is currently inside a getDataFromDom() conversion.
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*
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* @method
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* @returns {boolean} Whether we're converting
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*/
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ve.dm.Converter.prototype.isConverting = function () {
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return this.contextStack !== null;
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};
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/**
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* Get the IndexValueStore used for the current conversion.
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*
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* @method
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* @returns {ve.dm.IndexValueStore|null} Current store, or null if not converting
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*/
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ve.dm.Converter.prototype.getStore = function () {
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return this.store;
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};
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/**
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* Get the HTML document currently being converted
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*
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* @method
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* @returns {HTMLDocument|null} HTML document being converted, or null if not converting
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*/
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ve.dm.Converter.prototype.getHtmlDocument = function () {
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return this.doc;
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};
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/**
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* Get the current conversion context. This is the recursion state of getDataFromDomRecursion().
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*
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* @method
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* @returns {Object|null} Context object, or null if not converting
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*/
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ve.dm.Converter.prototype.getCurrentContext = function () {
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return this.contextStack === null ? null : this.contextStack[this.contextStack.length - 1];
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};
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/**
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* Get the annotations currently being applied by the converter. Note that this is specific to
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* the current recursion level.
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*
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* @method
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* @returns {ve.dm.AnnotationSet|null} Annotation set, or null if not converting
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*/
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ve.dm.Converter.prototype.getActiveAnnotations = function () {
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var context = this.getCurrentContext();
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return context ? context.annotations : null;
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};
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/**
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* Whether the converter is currently expecting content. Note that this is specific to the current
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* recursion level.
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*
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* @method
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* @returns {boolean|null} Boolean indicating whether content is expected, or null if not converting
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*/
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ve.dm.Converter.prototype.isExpectingContent = function () {
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var context = this.getCurrentContext();
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return context ? context.expectingContent : null;
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};
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/**
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* Whether the conversion is currently inside a wrapper paragraph generated by the converter.
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* Note that this is specific to the current recursion level.
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*
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* @method
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* @returns {boolean|null} Boolean indicating whether we're wrapping, or null if not converting
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*/
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ve.dm.Converter.prototype.isInWrapper = function () {
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var context = this.getCurrentContext();
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return context ? context.inWrapper : null;
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};
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/**
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* Whether the active wrapper can be closed. Note that this is specific to the current recursion
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* level. If there is no active wrapper, this returns false.
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*
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* @method
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* @returns {boolean|null} Boolean indicating whether the wrapper can be closed, or null if not converting
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*/
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ve.dm.Converter.prototype.canCloseWrapper = function () {
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var context = this.getCurrentContext();
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return context ? context.canCloseWrapper : null;
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};
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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|Array} dataElement Linear model element or data slice
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* @param {HTMLDocument} doc Document to create DOM elements in
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* @param {HTMLElement[]} [childDomElements] Array of child DOM elements to pass in (annotations only)
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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 ( dataElements, doc, childDomElements ) {
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var domElements,
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dataElement = ve.isArray( dataElements ) ? dataElements[0] : dataElements,
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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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if ( nodeClass.static.isInternal ) {
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return false;
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}
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domElements = nodeClass.static.toDomElements( dataElements, doc, this, childDomElements );
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if ( ( !domElements || !domElements.length ) && !( nodeClass.prototype instanceof ve.dm.Annotation ) ) {
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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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if ( dataElement.htmlAttributes ) {
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ve.dm.Converter.renderHtmlAttributeList( dataElement.htmlAttributes, domElements );
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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.Model} modelClass Model class to use for conversion
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* @param {HTMLElement[]} domElements DOM elements to convert
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* @returns {Object|Array|null} Data element or array of linear model data, or null to alienate
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*/
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ve.dm.Converter.prototype.createDataElements = function ( modelClass, domElements ) {
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var dataElements = modelClass.static.toDataElement( domElements, this );
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if ( !dataElements ) {
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return null;
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}
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if ( !ve.isArray( dataElements ) ) {
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dataElements = [ dataElements ];
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}
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return dataElements;
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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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* @param {ve.dm.IndexValueStore} store Index-value store
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* @param {ve.dm.InternalList} internalList Internal list
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* @returns {ve.dm.ElementLinearData} Linear model data
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*/
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ve.dm.Converter.prototype.getDataFromDom = function ( doc, store, internalList ) {
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var linearData, refData;
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// Set up the converter state
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this.doc = doc;
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this.store = store;
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this.internalList = internalList;
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this.contextStack = [];
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// Possibly do things with doc and the head in the future
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linearData = new ve.dm.ElementLinearData(
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store,
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this.getDataFromDomRecursion( doc.body )
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);
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refData = this.internalList.convertToData( this );
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linearData.batchSplice( linearData.getLength(), 0, refData );
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// Clear the state
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this.doc = null;
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this.store = null;
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this.internalList = null;
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this.contextStack = null;
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return linearData;
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};
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/**
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* Wrapper for getDataFromDomRecursion which resets contextStack before the call
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* and then set it back after the call.
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*
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* TODO: This is kind of a hack, better implementation would be more appropriate in near future.
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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 {Object} [wrapperElement] Data element to wrap the returned data in
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* @param {ve.dm.AnnotationSet} [annotationSet] Override the set of annotations to use
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* @returns {Array} Linear model data
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*/
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ve.dm.Converter.prototype.getDataFromDomRecursionClean = function ( domElement, wrapperElement, annotationSet ) {
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var result, contextStack = this.contextStack;
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this.contextStack = [];
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result = this.getDataFromDomRecursion( domElement, wrapperElement, annotationSet );
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this.contextStack = contextStack;
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return result;
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};
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/**
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* Recursive implementation of getDataFromDom(). For internal use, and for use in
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* ve.dm.Model.static.toDataElement() implementations.
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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 {Object} [wrapperElement] Data element to wrap the returned data in
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* @param {ve.dm.AnnotationSet} [annotationSet] Override the set of annotations to use
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* @returns {Array} Linear model data
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*/
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ve.dm.Converter.prototype.getDataFromDomRecursion = function ( domElement, wrapperElement, annotationSet ) {
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/**
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* Add whitespace to an element at a specific offset.
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*
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* @param {Array} element Data element
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* @param {number} index Whitespace index, 0-3
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* @param {string} whitespace Whitespace content
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*/
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function addWhitespace( element, index, whitespace ) {
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if ( !whitespace ) {
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return;
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}
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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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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 outputWrappedMetaItems( whitespaceTreatment ) {
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var i, len,
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prev = wrappingParagraph;
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for ( i = 0, len = wrappedMetaItems.length; i < len; i++ ) {
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if ( wrappedMetaItems[i].type && wrappedMetaItems[i].type.charAt( 0 ) !== '/' ) {
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if ( wrappedMetaItems[i].internal && wrappedMetaItems[i].internal.whitespace ) {
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if ( whitespaceTreatment === 'restore' ) {
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data = data.concat( ve.dm.Converter.getDataContentFromText(
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wrappedMetaItems[i].internal.whitespace[0], context.annotations
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) );
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delete wrappedMetaItems[i].internal;
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} else if ( whitespaceTreatment === 'fixup' ) {
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addWhitespace( prev, 3, wrappedMetaItems[i].internal.whitespace[0] );
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}
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}
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prev = wrappedMetaItems[i];
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}
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data.push( wrappedMetaItems[i] );
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}
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wrappedMetaItems = [];
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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;
|
|
processNextWhitespace( wrappingParagraph );
|
|
}
|
|
function stopWrapping() {
|
|
if ( wrappedWhitespace !== '' ) {
|
|
// Remove wrappedWhitespace from data
|
|
data.splice( wrappedWhitespaceIndex, wrappedWhitespace.length );
|
|
// Add whitespace to the last sibling: either the last meta item or the wrapper paragraph
|
|
addWhitespace( wrappedMetaItems.length > 0 ? wrappedMetaItems[wrappedMetaItems.length - 2] : wrappingParagraph, 3, wrappedWhitespace );
|
|
nextWhitespace = wrappedWhitespace;
|
|
}
|
|
data.push( { 'type': '/paragraph' } );
|
|
outputWrappedMetaItems( 'fixup' );
|
|
wrappingParagraph = undefined;
|
|
context.inWrapper = false;
|
|
context.canCloseWrapper = false;
|
|
context.expectingContent = context.originallyExpectingContent;
|
|
}
|
|
function getAboutGroup( el ) {
|
|
var elAbout, node,
|
|
textNodes = [],
|
|
aboutGroup = [ el ];
|
|
|
|
if ( !el.getAttribute || el.getAttribute( 'about' ) === null ) {
|
|
return aboutGroup;
|
|
}
|
|
elAbout = el.getAttribute( 'about' );
|
|
for ( node = el.nextSibling; node; node = node.nextSibling ) {
|
|
if ( !node.getAttribute ) {
|
|
// Text nodes don't have a getAttribute() method. Thanks HTML DOM,
|
|
// that's really helpful ^^
|
|
textNodes.push( node );
|
|
continue;
|
|
}
|
|
if ( node.getAttribute( 'about' ) === elAbout ) {
|
|
aboutGroup = aboutGroup.concat( textNodes );
|
|
textNodes = [];
|
|
aboutGroup.push( node );
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
return aboutGroup;
|
|
}
|
|
function isAllInstanceOf( data, targetClass ) {
|
|
var i, type, itemClass;
|
|
for ( i = data.length - 1; i >= 0; i-- ) {
|
|
type = ve.dm.LinearData.static.getType( data[i] );
|
|
if ( type ) {
|
|
itemClass = modelRegistry.lookup( type ) || ve.dm.AlienNode;
|
|
if ( !( itemClass.prototype === targetClass.prototype || itemClass.prototype instanceof targetClass ) ) {
|
|
return false;
|
|
}
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
var i, childDomElement, childDomElements, childDataElements, text, childTypes, matches,
|
|
wrappingParagraph, prevElement, childAnnotations, modelName, modelClass,
|
|
annotation, childIsContent, aboutGroup, htmlAttributes,
|
|
modelRegistry = this.modelRegistry,
|
|
data = [],
|
|
nextWhitespace = '',
|
|
wrappedWhitespace = '',
|
|
wrappedWhitespaceIndex,
|
|
wrappedMetaItems = [],
|
|
context = {},
|
|
prevContext = this.contextStack.length ?
|
|
this.contextStack[this.contextStack.length - 1] : null;
|
|
|
|
context.annotations = annotationSet || (
|
|
prevContext ? prevContext.annotations.clone() : new ve.dm.AnnotationSet( this.store )
|
|
);
|
|
context.branchType = wrapperElement ? wrapperElement.type : (
|
|
prevContext ? prevContext.branchType : 'document'
|
|
);
|
|
context.branchHasContent = this.nodeFactory.canNodeContainContent( context.branchType );
|
|
context.originallyExpectingContent = context.branchHasContent || !context.annotations.isEmpty();
|
|
context.expectingContent = context.originallyExpectingContent;
|
|
context.inWrapper = prevContext ? prevContext.inWrapper : false;
|
|
context.canCloseWrapper = false;
|
|
this.contextStack.push( context );
|
|
|
|
// Open element
|
|
if ( wrapperElement ) {
|
|
data.push( wrapperElement );
|
|
}
|
|
// Add contents
|
|
for ( i = 0; i < domElement.childNodes.length; i++ ) {
|
|
childDomElement = domElement.childNodes[i];
|
|
switch ( childDomElement.nodeType ) {
|
|
case Node.ELEMENT_NODE:
|
|
aboutGroup = getAboutGroup( childDomElement );
|
|
modelName = this.modelRegistry.matchElement( childDomElement, aboutGroup.length > 1 );
|
|
modelClass = this.modelRegistry.lookup( modelName ) || ve.dm.AlienNode;
|
|
if ( modelClass.prototype instanceof ve.dm.Annotation ) {
|
|
childDomElements = [ childDomElement ];
|
|
} else {
|
|
// Node or meta item
|
|
childDomElements = modelClass.static.enableAboutGrouping ?
|
|
aboutGroup : [ childDomElement ];
|
|
}
|
|
childDataElements = this.createDataElements( modelClass, childDomElements );
|
|
|
|
if ( !childDataElements ) {
|
|
// Alienate
|
|
modelClass = ve.dm.AlienNode;
|
|
childDomElements = modelClass.static.enableAboutGrouping ?
|
|
aboutGroup : [ childDomElement ];
|
|
childDataElements = this.createDataElement( modelClass, childDomElements );
|
|
} else {
|
|
// Update modelClass to reflect the type we got back
|
|
modelClass = this.modelRegistry.lookup( childDataElements[0].type );
|
|
}
|
|
|
|
// Now take the appropriate action based on that
|
|
if ( modelClass.prototype instanceof ve.dm.Annotation ) {
|
|
htmlAttributes = ve.dm.Converter.buildHtmlAttributeList(
|
|
childDomElements, modelClass.static.storeHtmlAttributes
|
|
);
|
|
if ( htmlAttributes ) {
|
|
childDataElements[0].htmlAttributes = htmlAttributes;
|
|
}
|
|
annotation = this.annotationFactory.create( modelName, childDataElements[0] );
|
|
// Start wrapping if needed
|
|
if ( !context.inWrapper && !context.expectingContent ) {
|
|
startWrapping();
|
|
prevElement = wrappingParagraph;
|
|
}
|
|
// Append child element data
|
|
childAnnotations = context.annotations.clone();
|
|
childAnnotations.push( annotation );
|
|
|
|
childDataElements = this.getDataFromDomRecursion( childDomElement, undefined, childAnnotations );
|
|
if ( !childDataElements.length || isAllInstanceOf( childDataElements, ve.dm.AlienMetaItem ) ) {
|
|
// Empty annotation, create a meta item
|
|
childDataElements = this.createDataElements( ve.dm.AlienMetaItem, childDomElements );
|
|
childDataElements.push( { 'type': '/' + childDataElements[0].type } );
|
|
// Annotate meta item
|
|
if ( !context.annotations.isEmpty() ) {
|
|
childDataElements[0].annotations = context.annotations.getIndexes().slice();
|
|
}
|
|
}
|
|
outputWrappedMetaItems( 'restore' );
|
|
data = data.concat( childDataElements );
|
|
// Clear wrapped whitespace
|
|
wrappedWhitespace = '';
|
|
} else {
|
|
// Node or meta item
|
|
if ( modelClass.prototype instanceof ve.dm.MetaItem ) {
|
|
htmlAttributes = ve.dm.Converter.buildHtmlAttributeList(
|
|
childDomElements, modelClass.static.storeHtmlAttributes, true
|
|
);
|
|
if ( htmlAttributes ) {
|
|
childDataElements[0].htmlAttributes = htmlAttributes;
|
|
}
|
|
// No additional processing needed
|
|
// Write to data and continue
|
|
if ( childDataElements.length === 1 ) {
|
|
childDataElements.push( { 'type': '/' + childDataElements[0].type } );
|
|
}
|
|
// Annotate meta item
|
|
if ( !context.annotations.isEmpty() ) {
|
|
childDataElements[0].annotations = context.annotations.getIndexes().slice();
|
|
}
|
|
// Queue wrapped meta items only if it's actually possible for us to move them out
|
|
// of the wrapper
|
|
if ( context.inWrapper && context.canCloseWrapper ) {
|
|
wrappedMetaItems = wrappedMetaItems.concat( childDataElements );
|
|
if ( wrappedWhitespace !== '' ) {
|
|
data.splice( wrappedWhitespaceIndex, wrappedWhitespace.length );
|
|
addWhitespace( childDataElements[0], 0, wrappedWhitespace );
|
|
nextWhitespace = wrappedWhitespace;
|
|
wrappedWhitespace = '';
|
|
}
|
|
} else {
|
|
outputWrappedMetaItems( 'restore' );
|
|
data = data.concat( childDataElements );
|
|
processNextWhitespace( childDataElements[0] );
|
|
prevElement = childDataElements[0];
|
|
}
|
|
// In case we consumed multiple childDomElements, adjust i accordingly
|
|
i += childDomElements.length - 1;
|
|
break;
|
|
}
|
|
|
|
childIsContent = this.nodeFactory.isNodeContent( childDataElements[0].type );
|
|
|
|
// If childIsContent isn't what we expect, adjust
|
|
if ( !context.expectingContent && childIsContent ) {
|
|
startWrapping();
|
|
prevElement = wrappingParagraph;
|
|
} else if ( context.expectingContent && !childIsContent ) {
|
|
if ( context.inWrapper && context.canCloseWrapper ) {
|
|
stopWrapping();
|
|
} else {
|
|
// Alienate
|
|
modelClass = ve.dm.AlienNode;
|
|
childDomElements = modelClass.static.enableAboutGrouping ?
|
|
aboutGroup : [ childDomElement ];
|
|
childDataElements = this.createDataElements( modelClass, childDomElements );
|
|
childIsContent = this.nodeFactory.isNodeContent( childDataElements[0].type );
|
|
}
|
|
}
|
|
|
|
// If we're inserting content into a wrapper, any wrappedWhitespace
|
|
// up to this point can be considered dealt with
|
|
if ( context.inWrapper && childIsContent ) {
|
|
wrappedWhitespace = '';
|
|
}
|
|
|
|
// Annotate child
|
|
if ( childIsContent && !context.annotations.isEmpty() ) {
|
|
childDataElements[0].annotations = context.annotations.getIndexes().slice();
|
|
}
|
|
|
|
// Output child and process children if needed
|
|
if (
|
|
childDataElements.length === 1 &&
|
|
childDomElements.length === 1 &&
|
|
this.nodeFactory.canNodeHaveChildren( childDataElements[0].type ) &&
|
|
!this.nodeFactory.doesNodeHandleOwnChildren( childDataElements[0].type )
|
|
) {
|
|
htmlAttributes = ve.dm.Converter.buildHtmlAttributeList(
|
|
childDomElements, modelClass.static.storeHtmlAttributes
|
|
);
|
|
if ( htmlAttributes ) {
|
|
childDataElements[0].htmlAttributes = htmlAttributes;
|
|
}
|
|
// Recursion
|
|
// Opening and closing elements are added by the recursion too
|
|
outputWrappedMetaItems( 'restore' );
|
|
data = data.concat(
|
|
this.getDataFromDomRecursion( childDomElement, childDataElements[0],
|
|
new ve.dm.AnnotationSet( this.store )
|
|
)
|
|
);
|
|
} else {
|
|
if ( childDataElements.length === 1 ) {
|
|
childDataElements.push( { 'type': '/' + childDataElements[0].type } );
|
|
}
|
|
htmlAttributes = ve.dm.Converter.buildHtmlAttributeList(
|
|
childDomElements, modelClass.static.storeHtmlAttributes, true
|
|
);
|
|
if ( htmlAttributes ) {
|
|
childDataElements[0].htmlAttributes = htmlAttributes;
|
|
}
|
|
// Write childDataElements directly
|
|
outputWrappedMetaItems( 'restore' );
|
|
data = data.concat( childDataElements );
|
|
}
|
|
processNextWhitespace( childDataElements[0] );
|
|
prevElement = childDataElements[0];
|
|
|
|
// In case we consumed multiple childDomElements, adjust i accordingly
|
|
i += childDomElements.length - 1;
|
|
}
|
|
break;
|
|
case Node.TEXT_NODE:
|
|
text = childDomElement.data;
|
|
if ( text === '' ) {
|
|
// Empty text node?!?
|
|
break;
|
|
}
|
|
if ( !context.originallyExpectingContent ) {
|
|
// Strip and store outer whitespace
|
|
if ( text.match( /^\s+$/ ) ) {
|
|
// This text node is whitespace only
|
|
if ( context.inWrapper ) {
|
|
// We're already wrapping, so output this whitespace
|
|
// and store it in wrappedWhitespace (see
|
|
// comment about wrappedWhitespace below)
|
|
wrappedWhitespace = text;
|
|
wrappedWhitespaceIndex = data.length;
|
|
data = data.concat(
|
|
ve.dm.Converter.getDataContentFromText( wrappedWhitespace, context.annotations )
|
|
);
|
|
} else {
|
|
// We're not in wrapping mode, store this whitespace
|
|
if ( !prevElement ) {
|
|
if ( wrapperElement ) {
|
|
// First child, store as inner
|
|
// whitespace in the parent
|
|
addWhitespace( wrapperElement, 1, text );
|
|
}
|
|
// Else, WTF?!? This is not supposed to
|
|
// happen, but it's not worth
|
|
// throwing an exception over.
|
|
} else {
|
|
addWhitespace( prevElement, 3, text );
|
|
}
|
|
nextWhitespace = text;
|
|
wrappedWhitespace = '';
|
|
outputWrappedMetaItems( 'restore' );
|
|
}
|
|
// We're done, no actual text left to process
|
|
break;
|
|
} else {
|
|
// This text node contains actual text
|
|
// Separate the real text from the whitespace
|
|
// HACK: . doesn't match newlines in JS, so use
|
|
// [\s\S] to match any character
|
|
matches = text.match( /^(\s*)([\s\S]*?)(\s*)$/ );
|
|
if ( !context.inWrapper ) {
|
|
// Wrap the text in a paragraph and output it
|
|
startWrapping();
|
|
|
|
// Only store leading whitespace if we just
|
|
// started wrapping
|
|
if ( matches[1] !== '' ) {
|
|
if ( !prevElement ) {
|
|
if ( wrapperElement ) {
|
|
// First child, store as inner
|
|
// whitespace in the parent
|
|
addWhitespace( wrapperElement, 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 {
|
|
outputWrappedMetaItems( 'restore' );
|
|
// We were already wrapping in a paragraph,
|
|
// so the leading whitespace must be output
|
|
data = data.concat(
|
|
ve.dm.Converter.getDataContentFromText( matches[1], context.annotations )
|
|
);
|
|
}
|
|
// Output the text sans whitespace
|
|
data = data.concat(
|
|
ve.dm.Converter.getDataContentFromText( matches[2], context.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, context.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 (
|
|
context.annotations.isEmpty() && i === 0 && wrapperElement &&
|
|
!this.nodeFactory.doesNodeHaveSignificantWhitespace( wrapperElement.type )
|
|
) {
|
|
// Strip leading whitespace from the first child
|
|
matches = text.match( /^\s+/ );
|
|
if ( matches && matches[0] !== '' ) {
|
|
addWhitespace( wrapperElement, 1, matches[0] );
|
|
text = text.substring( matches[0].length );
|
|
}
|
|
}
|
|
if (
|
|
context.annotations.isEmpty() &&
|
|
i === domElement.childNodes.length - 1 &&
|
|
wrapperElement &&
|
|
!this.nodeFactory.doesNodeHaveSignificantWhitespace( wrapperElement.type )
|
|
) {
|
|
// Strip trailing whitespace from the last child
|
|
matches = text.match( /\s+$/ );
|
|
if ( matches && matches[0] !== '' ) {
|
|
addWhitespace( wrapperElement, 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, context.annotations )
|
|
);
|
|
break;
|
|
case Node.COMMENT_NODE:
|
|
// TODO treat this as a node with nodeName #comment, removes code duplication
|
|
childDataElements = this.createDataElements( ve.dm.AlienMetaItem, [ childDomElement ] );
|
|
childDataElements.push( { 'type': '/' + childDataElements[0].type } );
|
|
|
|
// Annotate
|
|
if ( !context.annotations.isEmpty() ) {
|
|
childDataElements[0].annotations = context.annotations.getIndexes().slice();
|
|
}
|
|
|
|
// Queue wrapped meta items only if it's actually possible for us to move them out
|
|
// of the wrapper
|
|
if ( context.inWrapper && context.canCloseWrapper ) {
|
|
wrappedMetaItems = wrappedMetaItems.concat( childDataElements );
|
|
if ( wrappedWhitespace !== '' ) {
|
|
data.splice( wrappedWhitespaceIndex, wrappedWhitespace.length );
|
|
addWhitespace( childDataElements[0], 0, wrappedWhitespace );
|
|
nextWhitespace = wrappedWhitespace;
|
|
wrappedWhitespace = '';
|
|
}
|
|
} else {
|
|
data = data.concat( childDataElements );
|
|
processNextWhitespace( childDataElements[0] );
|
|
prevElement = childDataElements[0];
|
|
}
|
|
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( context.branchType );
|
|
if ( context.branchType !== 'paragraph' && wrapperElement && data[data.length - 1] === wrapperElement &&
|
|
!context.inWrapper && !this.nodeFactory.canNodeContainContent( context.branchType ) &&
|
|
!this.nodeFactory.isNodeContent( context.branchType ) &&
|
|
( childTypes === null || ve.indexOf( 'paragraph', childTypes ) !== -1 )
|
|
) {
|
|
data.push( { 'type': 'paragraph', 'internal': { 'generated': 'empty' } } );
|
|
data.push( { 'type': '/paragraph' } );
|
|
}
|
|
|
|
// Close element
|
|
if ( wrapperElement ) {
|
|
// Add the whitespace after the last child to the parent as innerPost
|
|
// But don't do this if the parent is empty, because in that case we've already put that
|
|
// whitespace in innerPre
|
|
if ( nextWhitespace !== '' && data[data.length - 1] !== wrapperElement ) {
|
|
addWhitespace( wrapperElement, 2, nextWhitespace );
|
|
nextWhitespace = '';
|
|
}
|
|
data.push( { 'type': '/' + wrapperElement.type } );
|
|
}
|
|
// Don't return an empty document
|
|
if ( context.branchType === 'document' && isAllInstanceOf( data, ve.dm.MetaItem ) && !annotationSet ) {
|
|
return data.concat( [
|
|
{ 'type': 'paragraph', 'internal': { 'generated': 'empty' } },
|
|
{ 'type': '/paragraph' }
|
|
] );
|
|
}
|
|
|
|
this.contextStack.pop();
|
|
return data;
|
|
};
|
|
|
|
/**
|
|
* Check if all the domElements provided are metadata or whitespace.
|
|
*
|
|
* A list of model names to exclude when matching can optionally be passed.
|
|
*
|
|
* @param {HTMLElement[]} domElements DOM elements to check
|
|
* @param {string[]} [excludeTypes] Model names to exclude when matching DOM elements
|
|
* @returns {boolean} All the elements are metadata or whitespace
|
|
*/
|
|
ve.dm.Converter.prototype.isDomAllMetaOrWhitespace = function ( domElements, excludeTypes ) {
|
|
var i, childDomElement, modelName, modelClass;
|
|
|
|
for ( i = 0; i < domElements.length; i++ ) {
|
|
childDomElement = domElements[i];
|
|
switch ( childDomElement.nodeType ) {
|
|
case Node.ELEMENT_NODE:
|
|
modelName = this.modelRegistry.matchElement( childDomElement, false, excludeTypes );
|
|
modelClass = this.modelRegistry.lookup( modelName ) || ve.dm.AlienNode;
|
|
if (
|
|
!( modelClass.prototype instanceof ve.dm.Annotation ) &&
|
|
!( modelClass.prototype instanceof ve.dm.MetaItem )
|
|
) {
|
|
// If the element not meta or an annotation, then we must have content
|
|
return false;
|
|
}
|
|
// Recursively check children
|
|
if (
|
|
childDomElement.childNodes.length &&
|
|
!this.isDomAllMetaOrWhitespace( childDomElement.childNodes, excludeTypes )
|
|
) {
|
|
return false;
|
|
}
|
|
continue;
|
|
case Node.TEXT_NODE:
|
|
// Check for whitespace-only
|
|
if ( !childDomElement.data.match( /\S/ ) ) {
|
|
continue;
|
|
}
|
|
break;
|
|
case Node.COMMENT_NODE:
|
|
// Comments are always meta
|
|
continue;
|
|
}
|
|
return false;
|
|
}
|
|
return true;
|
|
};
|
|
|
|
/**
|
|
* Convert linear model data to an HTML DOM
|
|
*
|
|
* @method
|
|
* @param {Array} documentData Linear model data
|
|
* @param {ve.dm.IndexValueStore} store Index-value store
|
|
* @param {ve.dm.InternalList} internalList Internal list
|
|
* @returns {HTMLDocument} Document containing the resulting HTML
|
|
*/
|
|
ve.dm.Converter.prototype.getDomFromData = function ( documentData, store, internalList ) {
|
|
var doc = ve.createDocumentFromHtml( '' );
|
|
|
|
// Set up the converter state
|
|
this.documentData = documentData;
|
|
this.store = store;
|
|
this.internalList = internalList;
|
|
|
|
this.getDomSubtreeFromData( documentData, doc.body );
|
|
|
|
// Clear the state
|
|
this.documentData = null;
|
|
this.store = null;
|
|
this.internalList = null;
|
|
|
|
return doc;
|
|
};
|
|
|
|
/**
|
|
* Convert linear model data to an HTML DOM subtree and add it to a container element.
|
|
*
|
|
* @param {Array} data Linear model data
|
|
* @param {HTMLElement} container DOM element to add the generated elements to. Should be empty.
|
|
* @throws Unbalanced data: looking for closing /type
|
|
*/
|
|
ve.dm.Converter.prototype.getDomSubtreeFromData = function ( data, container ) {
|
|
var text, i, j, annotations, dataElement, dataElementOrSlice,
|
|
childDomElements, pre, ours, theirs, parentDomElement, lastChild, isContentNode, sibling,
|
|
previousSiblings, doUnwrap, textNode, type, annotatedDomElementStack, annotatedDomElements,
|
|
dataLen = data.length,
|
|
canContainContentStack = [],
|
|
conv = this,
|
|
doc = container.ownerDocument,
|
|
domElement = container,
|
|
annotationStack = new ve.dm.AnnotationSet( this.store );
|
|
|
|
// TODO this whole function should be rewritten with a domElementStack and ascend() and
|
|
// descend() functions, to build the whole DOM bottom-up rather than top-down. That would make
|
|
// unwrapping easier and will hopefully result in fewer DOM operations.
|
|
|
|
function openAnnotation() {
|
|
// Add text if needed
|
|
if ( text.length > 0 ) {
|
|
annotatedDomElements.push( doc.createTextNode( text ) );
|
|
text = '';
|
|
}
|
|
annotatedDomElements = [];
|
|
annotatedDomElementStack.push( annotatedDomElements );
|
|
}
|
|
|
|
function closeAnnotation( annotation ) {
|
|
var i, len, annotationElement, annotatedChildDomElements;
|
|
|
|
// Add text if needed
|
|
if ( text.length > 0 ) {
|
|
annotatedDomElements.push( doc.createTextNode( text ) );
|
|
text = '';
|
|
}
|
|
|
|
annotatedChildDomElements = annotatedDomElementStack.pop();
|
|
annotatedDomElements = annotatedDomElementStack[annotatedDomElementStack.length - 1];
|
|
annotationElement = conv.getDomElementsFromDataElement(
|
|
annotation.getElement(), doc, annotatedChildDomElements
|
|
)[0];
|
|
if ( annotationElement ) {
|
|
for ( i = 0, len = annotatedChildDomElements.length; i < len; i++ ) {
|
|
annotationElement.appendChild( annotatedChildDomElements[i] );
|
|
}
|
|
annotatedDomElements.push( annotationElement );
|
|
} else {
|
|
for ( i = 0, len = annotatedChildDomElements.length; i < len; i++ ) {
|
|
annotatedDomElements.push( annotatedChildDomElements[i] );
|
|
}
|
|
}
|
|
}
|
|
|
|
function findEndOfNode( i ) {
|
|
var j = i + 1, depth = 1;
|
|
while ( j < dataLen && depth > 0 ) {
|
|
if ( data[j].type ) {
|
|
depth += data[j].type.charAt( 0 ) === '/' ? -1 : 1;
|
|
}
|
|
j++;
|
|
}
|
|
if ( depth !== 0 ) {
|
|
throw new Error( 'Unbalanced data: looking for closing /' +
|
|
dataElement.type );
|
|
}
|
|
return j;
|
|
}
|
|
|
|
function getDataElementOrSlice() {
|
|
var dataSlice;
|
|
if (
|
|
ve.dm.nodeFactory.lookup( data[i].type ) &&
|
|
ve.dm.nodeFactory.doesNodeHandleOwnChildren( data[i].type )
|
|
) {
|
|
dataSlice = data.slice( i, findEndOfNode( i ) );
|
|
} else {
|
|
dataSlice = data[i];
|
|
}
|
|
return dataSlice;
|
|
}
|
|
|
|
function removeInternalNodes() {
|
|
var dataCopy, endOffset;
|
|
// See if there is an internalList in the data, and if there is one, remove it
|
|
// Removing it here prevents unwanted interactions with whitespace preservation
|
|
for ( i = 0; i < dataLen; i++ ) {
|
|
if (
|
|
data[i].type && data[i].type.charAt( 0 ) !== '/' &&
|
|
ve.dm.nodeFactory.lookup( data[i].type ) &&
|
|
ve.dm.nodeFactory.isNodeInternal( data[i].type )
|
|
) {
|
|
// Copy data if we haven't already done so
|
|
if ( !dataCopy ) {
|
|
dataCopy = data.slice();
|
|
}
|
|
endOffset = findEndOfNode( i );
|
|
// Remove this node's data from dataCopy
|
|
dataCopy.splice( i - ( dataLen - dataCopy.length ), endOffset - i );
|
|
// Move i such that it will be at endOffset in the next iteration
|
|
i = endOffset - 1;
|
|
}
|
|
}
|
|
if ( dataCopy ) {
|
|
data = dataCopy;
|
|
dataLen = data.length;
|
|
}
|
|
}
|
|
|
|
removeInternalNodes();
|
|
|
|
for ( i = 0; i < dataLen; 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, nodes or meta
|
|
text = '';
|
|
annotatedDomElements = [];
|
|
annotatedDomElementStack = [ annotatedDomElements ];
|
|
while (
|
|
ve.isArray( data[i] ) ||
|
|
(
|
|
data[i].annotations !== undefined && (
|
|
this.metaItemFactory.lookup( data[i].type ) ||
|
|
this.nodeFactory.isNodeContent( data[i].type )
|
|
)
|
|
)
|
|
) {
|
|
annotations = new ve.dm.AnnotationSet(
|
|
this.store, data[i].annotations || data[i][1]
|
|
);
|
|
ve.dm.Converter.openAndCloseAnnotations( annotationStack, annotations,
|
|
openAnnotation, closeAnnotation
|
|
);
|
|
|
|
if ( data[i].annotations === undefined ) {
|
|
// Annotated text
|
|
text += data[i][0];
|
|
} else {
|
|
// Annotated node
|
|
// Add text if needed
|
|
if ( text.length > 0 ) {
|
|
annotatedDomElements.push( doc.createTextNode( text ) );
|
|
text = '';
|
|
}
|
|
// Insert the elements
|
|
dataElementOrSlice = getDataElementOrSlice();
|
|
childDomElements = this.getDomElementsFromDataElement( dataElementOrSlice, doc );
|
|
for ( j = 0; j < childDomElements.length; j++ ) {
|
|
annotatedDomElements.push( childDomElements[j] );
|
|
}
|
|
if ( ve.isArray( dataElementOrSlice ) ) {
|
|
i += dataElementOrSlice.length - 1;
|
|
} else {
|
|
i++; // Skip the closing
|
|
}
|
|
}
|
|
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 ) {
|
|
annotatedDomElements.push( doc.createTextNode( text ) );
|
|
text = '';
|
|
}
|
|
// Close any remaining annotations
|
|
ve.dm.Converter.openAndCloseAnnotations( annotationStack, new ve.dm.AnnotationSet( this.store ),
|
|
openAnnotation, closeAnnotation
|
|
);
|
|
// Put the annotated nodes in the DOM
|
|
for ( j = 0; j < annotatedDomElements.length; j++ ) {
|
|
domElement.appendChild( annotatedDomElements[j] );
|
|
}
|
|
} else if ( data[i].type !== undefined ) {
|
|
dataElement = data[i];
|
|
// Element
|
|
if ( dataElement.type.charAt( 0 ) === '/' ) {
|
|
// Close element
|
|
parentDomElement = domElement.parentNode;
|
|
type = data[i].type.substr( 1 );
|
|
if ( this.metaItemFactory.lookup( type ) ) {
|
|
isContentNode = canContainContentStack[canContainContentStack.length - 1];
|
|
} else {
|
|
isContentNode = this.nodeFactory.isNodeContent( type );
|
|
canContainContentStack.pop();
|
|
}
|
|
// 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
|
|
);
|
|
}
|
|
parentDomElement.removeChild( domElement );
|
|
}
|
|
|
|
delete domElement.veInternal;
|
|
delete domElement.lastOuterPost;
|
|
// Ascend to parent node, except if this is an internal node
|
|
// TODO: It's not covered with unit tests.
|
|
if ( !ve.dm.nodeFactory.lookup( type ) || !ve.dm.nodeFactory.isNodeInternal( type ) ) {
|
|
domElement = parentDomElement;
|
|
}
|
|
} else {
|
|
// Create node from data
|
|
if ( !this.metaItemFactory.lookup( data[i].type ) ) {
|
|
canContainContentStack.push(
|
|
// if the last item was true then this item must inherit it
|
|
canContainContentStack[canContainContentStack.length - 1] ||
|
|
this.nodeFactory.canNodeContainContent( data[i].type )
|
|
);
|
|
}
|
|
|
|
dataElementOrSlice = getDataElementOrSlice();
|
|
childDomElements = this.getDomElementsFromDataElement( dataElementOrSlice, doc );
|
|
if ( childDomElements ) {
|
|
// Add clone of internal data; we use a clone rather than a reference because
|
|
// we modify .veInternal.whitespace[1] in some cases
|
|
childDomElements[0].veInternal = ve.extendObject(
|
|
{ 'childDomElements': childDomElements },
|
|
ve.copyObject( 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
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ve.isArray( dataElementOrSlice ) ) {
|
|
i += dataElementOrSlice.length - 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// 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;
|
|
}
|
|
// Get rid of excess text nodes
|
|
container.normalize();
|
|
};
|
|
|
|
/* Initialization */
|
|
|
|
ve.dm.converter = new ve.dm.Converter( ve.dm.modelRegistry, ve.dm.nodeFactory, ve.dm.annotationFactory, ve.dm.metaItemFactory );
|