mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-09-25 03:08:42 +00:00
443c5438ab
* Now ve.Factory inherits from the more general ve.Registry * New class ve.CommandRegistry * Refactored setupToolbar and command setup code into setupComands Change-Id: Ic548e5de95b77889727362d3e66d7be83c12a603
77 lines
2.2 KiB
JavaScript
77 lines
2.2 KiB
JavaScript
/**
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* VisualEditor Factory class.
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*
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* @copyright 2011-2012 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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* Generic object factory.
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*
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* @class
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* @abstract
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* @constructor
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* @extends {ve.Registry}
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*/
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ve.Factory = function VeFactory() {
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// Parent constructor
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ve.Registry.call( this );
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// Properties
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this.registry = [];
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};
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/* Inheritance */
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ve.inheritClass( ve.Factory, ve.Registry );
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/* Methods */
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/**
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* Register a constructor with the factory.
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*
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* @method
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* @param {String|String[]} name Symbolic name or list of symbolic names
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* @param {Function} constructor Constructor to use when creating object
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* @throws 'constructor must be a function'
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*/
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ve.Factory.prototype.register = function ( name, constructor ) {
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if ( typeof constructor !== 'function' ) {
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throw new Error( 'constructor must be a function, cannot be a ' + typeof constructor );
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}
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ve.Registry.prototype.register.call( this, name, constructor );
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};
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/**
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* Create an object based on a name.
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*
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* Name is used to look up the constructor to use, while all additional arguments are passed to the
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* constructor directly, so leaving one out will pass an undefined to the constructor.
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*
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* @method
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* @param {string} name Object name.
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* @param {mixed} [...] Arguments to pass to the constructor.
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* @returns {Object} The new object.
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* @throws 'Unknown object name'
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*/
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ve.Factory.prototype.create = function ( name ) {
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var args, obj,
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constructor = this.registry[name];
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if ( constructor === undefined ) {
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throw new Error( 'No class registered by that name: ' + name );
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}
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// Convert arguments to array and shift the first argument (name) off
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args = Array.prototype.slice.call( arguments, 1 );
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// We can't use the "new" operator with .apply directly because apply needs a
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// context. So instead just do what "new" does: create an object that inherits from
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// the constructor's prototype (which also makes it an "instanceof" the constructor),
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// then invoke the constructor with the object as context, and return it (ignoring
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// the constructor's return value).
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obj = ve.createObject( constructor.prototype );
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constructor.apply( obj, args );
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return obj;
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};
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