97 lines
1.9 KiB
PHP
97 lines
1.9 KiB
PHP
<?php
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/**
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* Widget API: WP_Widget_Factory class
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*
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* @package WordPress
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* @subpackage Widgets
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* @since 4.4.0
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*/
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/**
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* Singleton that registers and instantiates WP_Widget classes.
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*
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* @since 2.8.0
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* @since 4.4.0 Moved to its own file from wp-includes/widgets.php
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*/
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class WP_Widget_Factory {
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/**
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* Widgets array.
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*
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* @since 2.8.0
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* @access public
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* @var array
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*/
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public $widgets = array();
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/**
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* PHP5 constructor.
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*
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* @since 4.3.0
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* @access public
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*/
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public function __construct() {
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add_action( 'widgets_init', array( $this, '_register_widgets' ), 100 );
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}
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/**
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* PHP4 constructor.
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*
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* @since 2.8.0
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* @access public
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*/
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public function WP_Widget_Factory() {
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_deprecated_constructor( 'WP_Widget_Factory', '4.2.0' );
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self::__construct();
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}
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/**
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* Registers a widget subclass.
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*
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* @since 2.8.0
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* @access public
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*
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* @param string $widget_class The name of a WP_Widget subclass.
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*/
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public function register( $widget_class ) {
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$this->widgets[$widget_class] = new $widget_class();
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}
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/**
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* Un-registers a widget subclass.
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*
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* @since 2.8.0
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* @access public
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*
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* @param string $widget_class The name of a WP_Widget subclass.
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*/
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public function unregister( $widget_class ) {
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unset( $this->widgets[ $widget_class ] );
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}
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/**
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* Serves as a utility method for adding widgets to the registered widgets global.
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*
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* @since 2.8.0
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* @access public
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*
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* @global array $wp_registered_widgets
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*/
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public function _register_widgets() {
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global $wp_registered_widgets;
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$keys = array_keys($this->widgets);
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$registered = array_keys($wp_registered_widgets);
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$registered = array_map('_get_widget_id_base', $registered);
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foreach ( $keys as $key ) {
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// don't register new widget if old widget with the same id is already registered
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if ( in_array($this->widgets[$key]->id_base, $registered, true) ) {
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unset($this->widgets[$key]);
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continue;
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}
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$this->widgets[$key]->_register();
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}
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}
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}
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