WP_Widget_Block

17class WP_Widget_Block extends WP_Widget {18 19	/**20	 * Default instance.21	 *22	 * @since 5.8.023	 * @var array24	 */25	protected $default_instance = array(26		'content' => '',27	);28 29	/**30	 * Sets up a new Block widget instance.31	 *32	 * @since 5.8.033	 */34	public function __construct() {35		$widget_ops  = array(36			'classname'                   => 'widget_block',37			'description'                 => __( 'A widget containing a block.' ),38			'customize_selective_refresh' => true,39			'show_instance_in_rest'       => true,40		);41		$control_ops = array(42			'width'  => 400,43			'height' => 350,44		);45		parent::__construct( 'block', __( 'Block' ), $widget_ops, $control_ops );46 47		add_filter( 'is_wide_widget_in_customizer', array( $this, 'set_is_wide_widget_in_customizer' ), 10, 2 );48	}49 50	/**51	 * Outputs the content for the current Block widget instance.52	 *53	 * @since 5.8.054	 *55	 * @param array $args     Display arguments including 'before_title', 'after_title',56	 *                        'before_widget', and 'after_widget'.57	 * @param array $instance Settings for the current Block widget instance.58	 */59	public function widget( $args, $instance ) {60		$instance = wp_parse_args( $instance, $this->default_instance );61 62		echo str_replace(63			'widget_block',64			$this->get_dynamic_classname( $instance['content'] ),65			$args['before_widget']66		);67 68		/**69		 * Filters the content of the Block widget before output.70		 *71		 * @since 5.8.072		 *73		 * @param string          $content  The widget content.74		 * @param array           $instance Array of settings for the current widget.75		 * @param WP_Widget_Block $widget   Current Block widget instance.76		 */77		echo apply_filters(78			'widget_block_content',79			$instance['content'],80			$instance,81			$this82		);83 84		echo $args['after_widget'];85	}86 87	/**88	 * Calculates the classname to use in the block widget's container HTML.89	 *90	 * Usually this is set to `$this->widget_options['classname']` by91	 * dynamic_sidebar(). In this case, however, we want to set the classname92	 * dynamically depending on the block contained by this block widget.93	 *94	 * If a block widget contains a block that has an equivalent legacy widget,95	 * we display that legacy widget's class name. This helps with theme96	 * backwards compatibility.