mediawiki-extensions-Visual.../modules/ve/dm/ve.dm.MetaItemFactory.js

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/*!
* VisualEditor DataModel MetaItemFactory class.
*
* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* DataModel meta item factory.
*
* @class
* @extends ve.NamedClassFactory
* @constructor
*/
ve.dm.MetaItemFactory = function VeDmMetaItemFactory() {
// Parent constructor
ve.NamedClassFactory.call( this );
};
/* Inheritance */
ve.inheritClass( ve.dm.MetaItemFactory, ve.NamedClassFactory );
/* Methods */
/**
* Get the group a given item type belongs to.
*
* @method
* @param {string} type Meta item type
* @returns {string} Group
* @throws {Error} Unknown item type
*/
ve.dm.MetaItemFactory.prototype.getGroup = function ( type ) {
if ( type in this.registry ) {
return this.registry[type].static.group;
}
throw new Error( 'Unknown item type: ' + type );
};
/**
* Create a new item from a metadata element
* @param {Object} element Metadata element
* @returns {ve.dm.MetaItem} MetaItem constructed from element
* @throws {Error} Element must have a .type property
*/
ve.dm.MetaItemFactory.prototype.createFromElement = function ( element ) {
if ( element && element.type ) {
return this.create( element.type, element );
}
throw new Error( 'Element must have a .type property' );
};
/* Initialization */
ve.dm.metaItemFactory = new ve.dm.MetaItemFactory();