WP_Widget_Factory

16#[AllowDynamicProperties]17class WP_Widget_Factory {18 19	/**20	 * Widgets array.21	 *22	 * @since 2.8.023	 * @var array24	 */25	public $widgets = array();26 27	/**28	 * PHP5 constructor.29	 *30	 * @since 4.3.031	 */32	public function __construct() {33		add_action( 'widgets_init', array( $this, '_register_widgets' ), 100 );34	}35 36	/**37	 * PHP4 constructor.38	 *39	 * @since 2.8.040	 * @deprecated 4.3.0 Use __construct() instead.41	 *42	 * @see WP_Widget_Factory::__construct()43	 */44	public function WP_Widget_Factory() {45		_deprecated_constructor( 'WP_Widget_Factory', '4.3.0' );46		self::__construct();47	}48 49	/**50	 * Registers a widget subclass.51	 *52	 * @since 2.8.053	 * @since 4.6.0 Updated the `$widget` parameter to also accept a WP_Widget instance object54	 *              instead of simply a `WP_Widget` subclass name.55	 *56	 * @param string|WP_Widget $widget Either the name of a `WP_Widget` subclass or an instance of a `WP_Widget` subclass.57	 */58	public function register( $widget ) {59		if ( $widget instanceof WP_Widget ) {60			$this->widgets[ spl_object_id( $widget ) ] = $widget;61		} else {62			$this->widgets[ $widget ] = new $widget();63		}64	}65 66	/**67	 * Un-registers a widget subclass.68	 *69	 * @since 2.8.070	 * @since 4.6.0 Updated the `$widget` parameter to also accept a WP_Widget instance object71	 *              instead of simply a `WP_Widget` subclass name.72	 *73	 * @param string|WP_Widget $widget Either the name of a `WP_Widget` subclass or an instance of a `WP_Widget` subclass.74	 */75	public function unregister( $widget ) {76		if ( $widget instanceof WP_Widget ) {77			unset( $this->widgets[ spl_object_id( $widget ) ] );78		} else {79			unset( $this->widgets[ $widget ] );80		}81	}82 83	/**84	 * Serves as a utility method for adding widgets to the registered widgets global.85	 *86	 * @since 2.8.087	 *88	 * @global array $wp_registered_widgets89	 */90	public function _register_widgets() {91		global $wp_registered_widgets;92		$keys       = array_keys( $this->widgets );93		$registered = array_keys( $wp_registered_widgets );94		$registered = array_map( '_get_widget_id_base', $registered );95