WP_Customize_Selective_Refresh

15#[AllowDynamicProperties]16final class WP_Customize_Selective_Refresh {17 18	/**19	 * Query var used in requests to render partials.20	 *21	 * @since 4.5.022	 */23	const RENDER_QUERY_VAR = 'wp_customize_render_partials';24 25	/**26	 * Customize manager.27	 *28	 * @since 4.5.029	 * @var WP_Customize_Manager30	 */31	public $manager;32 33	/**34	 * Registered instances of WP_Customize_Partial.35	 *36	 * @since 4.5.037	 * @var WP_Customize_Partial[]38	 */39	protected $partials = array();40 41	/**42	 * Log of errors triggered when partials are rendered.43	 *44	 * @since 4.5.045	 * @var array46	 */47	protected $triggered_errors = array();48 49	/**50	 * Keep track of the current partial being rendered.51	 *52	 * @since 4.5.053	 * @var string|null54	 */55	protected $current_partial_id;56 57	/**58	 * Plugin bootstrap for Partial Refresh functionality.59	 *60	 * @since 4.5.061	 *62	 * @param WP_Customize_Manager $manager Customizer bootstrap instance.63	 */64	public function __construct( WP_Customize_Manager $manager ) {65		$this->manager = $manager;66		require_once ABSPATH . WPINC . '/customize/class-wp-customize-partial.php';67 68		add_action( 'customize_preview_init', array( $this, 'init_preview' ) );69	}70 71	/**72	 * Retrieves the registered partials.73	 *74	 * @since 4.5.075	 *76	 * @return array Partials.77	 */78	public function partials() {79		return $this->partials;80	}81 82	/**83	 * Adds a partial.84	 *85	 * @since 4.5.086	 *87	 * @see WP_Customize_Partial::__construct()88	 *89	 * @param WP_Customize_Partial|string $id   Customize Partial object, or Partial ID.90	 * @param array                       $args Optional. Array of properties for the new Partials object.91	 *                                          See WP_Customize_Partial::__construct() for information92	 *                                          on accepted arguments. Default empty array.93	 * @return WP_Customize_Partial The instance of the partial that was added.94	 */