class AnnounceBlock

class AnnounceBlock extends BlockBase implements ContainerFactoryPluginInterface {
    
    /**
     * Constructs a new AnnouncementsFeedBlock instance.
     *
     * @param array $configuration
     *   A configuration array containing information about the plugin instance.
     * @param string $plugin_id
     *   The plugin ID for the plugin instance.
     * @param mixed $plugin_definition
     *   The plugin implementation definition.
     * @param \Drupal\announcements_feed\AnnounceRenderer $announceRenderer
     *   The AnnounceRenderer service.
     */
    public function __construct(array $configuration, $plugin_id, $plugin_definition, AnnounceRenderer $announceRenderer) {
        parent::__construct($configuration, $plugin_id, $plugin_definition);
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) : static {
        return new static($configuration, $plugin_id, $plugin_definition, $container->get('announcements_feed.renderer'));
    }
    
    /**
     * {@inheritdoc}
     */
    public function blockAccess(AccountInterface $account) : AccessResultInterface {
        return AccessResult::allowedIfHasPermission($account, 'access announcements');
    }
    
    /**
     * {@inheritdoc}
     */
    public function build() : array {
        return $this->announceRenderer
            ->render();
    }

}