mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-25 14:56:20 +00:00
112 lines
3.2 KiB
JavaScript
112 lines
3.2 KiB
JavaScript
/*!
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* VisualEditor DataModel MetaNode 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 meta node.
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*
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* @class
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* @abstract
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* @extends ve.dm.LeafNode
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* @constructor
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* @param {string} name Node name
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* @param {number} [length] Length of content data in document; ignored and overridden to 0
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* @param {Object} [element] Reference to element in linear model
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*/
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ve.dm.MetaNode = function VeDmMetaNode( name, length, element ) {
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// Parent constructor
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ve.dm.LeafNode.call( this, name, 0, element );
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};
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/* Inheritance */
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ve.inheritClass( ve.dm.MetaNode, ve.dm.LeafNode );
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/* Static Properties */
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ve.dm.MetaNode.static.name = 'meta';
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ve.dm.MetaNode.static.isMeta = true;
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ve.dm.MetaNode.static.matchTagNames = [ 'meta', 'link' ];
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ve.dm.MetaNode.static.toDataElement = function ( domElements, context ) {
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var firstDomElement = domElements[0],
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isLink = firstDomElement.nodeName.toLowerCase() === 'link',
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keyAttr = isLink ? 'rel' : 'property',
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valueAttr = isLink ? 'href' : 'content',
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dataElement = {
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'type': context.expectingContent ? 'metaInline' : 'metaBlock',
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'attributes': {
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'style': isLink ? 'link' : 'meta',
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'key': firstDomElement.getAttribute( keyAttr )
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}
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};
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if ( firstDomElement.hasAttribute( valueAttr ) ) {
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dataElement.attributes.value = firstDomElement.getAttribute( valueAttr );
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}
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return dataElement;
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};
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ve.dm.MetaNode.static.toDomElements = function ( dataElement ) {
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var style = dataElement.attributes && dataElement.attributes.style || 'meta',
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isLink = style === 'link',
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tag = isLink ? 'link' : 'meta',
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keyAttr = isLink ? 'rel' : 'property',
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valueAttr = isLink ? 'href' : 'content',
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domElement;
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if ( style === 'comment' ) {
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return [ document.createComment( dataElement.attributes && dataElement.attributes.text || '' ) ];
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}
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domElement = document.createElement( tag );
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if ( dataElement.attributes && dataElement.attributes.key !== null ) {
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domElement.setAttribute( keyAttr, dataElement.attributes.key );
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}
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if ( dataElement.attributes && dataElement.attributes.value ) {
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domElement.setAttribute( valueAttr, dataElement.attributes.value );
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}
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return [ domElement ];
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};
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/* Concrete subclasses */
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/**
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* DataModel metaBlock node.
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*
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* @class
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* @abstract
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* @extends ve.dm.LeafNode
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* @constructor
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* @param {number} [length] Length of content data in document; ignored and overridden to 0
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* @param {Object} [element] Reference to element in linear model
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*/
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ve.dm.MetaBlockNode = function VeDmMetaBlockNode( length, element ) {
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// Parent constructor
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ve.dm.MetaNode.call( this, 'metaBlock', length, element );
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};
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ve.inheritClass( ve.dm.MetaBlockNode, ve.dm.MetaNode );
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ve.dm.MetaBlockNode.static.name = 'metaBlock';
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ve.dm.MetaInlineNode = function VeDmMetaInlineNode( length, element ) {
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// Parent constructor
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ve.dm.MetaNode.call( this, 'metaInline', length, element );
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};
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ve.inheritClass( ve.dm.MetaInlineNode, ve.dm.MetaNode );
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ve.dm.MetaInlineNode.static.name = 'metaInline';
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ve.dm.MetaInlineNode.static.isContent = true;
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/* Registration */
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ve.dm.modelRegistry.register( ve.dm.MetaNode );
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ve.dm.modelRegistry.register( ve.dm.MetaBlockNode );
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ve.dm.modelRegistry.register( ve.dm.MetaInlineNode );
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