Bulk_Upgrader_Skin

18class Bulk_Upgrader_Skin extends WP_Upgrader_Skin {19 20	/**21	 * Whether the bulk update process has started.22	 *23	 * @since 3.0.024	 * @var bool25	 */26	public $in_loop = false;27 28	/**29	 * Stores an error message about the update.30	 *31	 * @since 3.0.032	 * @var string|false33	 */34	public $error = false;35 36	/**37	 * Constructor.38	 *39	 * Sets up the generic skin for the Bulk Upgrader classes.40	 *41	 * @since 3.0.042	 *43	 * @param array $args44	 */45	public function __construct( $args = array() ) {46		$defaults = array(47			'url'   => '',48			'nonce' => '',49		);50		$args     = wp_parse_args( $args, $defaults );51 52		parent::__construct( $args );53	}54 55	/**56	 * Sets up the strings used in the update process.57	 *58	 * @since 3.0.059	 */60	public function add_strings() {61		$this->upgrader->strings['skin_upgrade_start'] = __( 'The update process is starting. This process may take a while on some hosts, so please be patient.' );62		/* translators: 1: Title of an update, 2: Error message. */63		$this->upgrader->strings['skin_update_failed_error'] = __( 'An error occurred while updating %1$s: %2$s' );64		/* translators: %s: Title of an update. */65		$this->upgrader->strings['skin_update_failed'] = __( 'The update of %s failed.' );66		/* translators: %s: Title of an update. */67		$this->upgrader->strings['skin_update_successful'] = __( '%s updated successfully.' );68		$this->upgrader->strings['skin_upgrade_end']       = __( 'All updates have been completed.' );69	}70 71	/**72	 * Displays a message about the update.73	 *74	 * @since 3.0.075	 * @since 5.9.0 Renamed `$string` (a PHP reserved keyword) to `$feedback` for PHP 8 named parameter support.76	 *77	 * @param string $feedback Message data.78	 * @param mixed  ...$args  Optional text replacements.79	 */80	public function feedback( $feedback, ...$args ) {81		if ( isset( $this->upgrader->strings[ $feedback ] ) ) {82			$feedback = $this->upgrader->strings[ $feedback ];83		}84 85		if ( str_contains( $feedback, '%' ) ) {86			if ( $args ) {87				$args     = array_map( 'strip_tags', $args );88				$args     = array_map( 'esc_html', $args );89				$feedback = vsprintf( $feedback, $args );90			}91		}92		if ( empty( $feedback ) ) {93			return;94		}95		if ( $this->in_loop ) {96			echo "$feedback<br />\n";97		} else {