WP_Widget_Media::_register_one( int $number = -1 )

103	public function _register_one( $number = -1 ) {104		parent::_register_one( $number );105		if ( $this->registered ) {106			return;107		}108		$this->registered = true;109 110		/*111		 * Note that the widgets component in the customizer will also do112		 * the 'admin_print_scripts-widgets.php' action in WP_Customize_Widgets::print_scripts().113		 */114		add_action( 'admin_print_scripts-widgets.php', array( $this, 'enqueue_admin_scripts' ) );115 116		if ( $this->is_preview() ) {117			add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_preview_scripts' ) );118		}119 120		/*121		 * Note that the widgets component in the customizer will also do122		 * the 'admin_footer-widgets.php' action in WP_Customize_Widgets::print_footer_scripts().123		 */124		add_action( 'admin_footer-widgets.php', array( $this, 'render_control_template_scripts' ) );125 126		add_filter( 'display_media_states', array( $this, 'display_media_state' ), 10, 2 );127	}