class MenuLinkResetForm

class MenuLinkResetForm extends ConfirmFormBase {
    
    /**
     * The menu link manager.
     *
     * @var \Drupal\Core\Menu\MenuLinkManagerInterface
     */
    protected $menuLinkManager;
    
    /**
     * The menu link.
     *
     * @var \Drupal\Core\Menu\MenuLinkInterface
     */
    protected $link;
    
    /**
     * Constructs a MenuLinkResetForm object.
     *
     * @param \Drupal\Core\Menu\MenuLinkManagerInterface $menu_link_manager
     *   The menu link manager.
     */
    public function __construct(MenuLinkManagerInterface $menu_link_manager) {
        $this->menuLinkManager = $menu_link_manager;
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container) {
        return new static($container->get('plugin.manager.menu.link'));
    }
    
    /**
     * {@inheritdoc}
     */
    public function getFormId() {
        return 'menu_link_reset_confirm';
    }
    
    /**
     * {@inheritdoc}
     */
    public function getQuestion() {
        return $this->t('Are you sure you want to reset the link %item to its default values?', [
            '%item' => $this->link
                ->getTitle(),
        ]);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getCancelUrl() {
        return new Url('entity.menu.edit_form', [
            'menu' => $this->link
                ->getMenuName(),
        ]);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getDescription() {
        return $this->t('Any customizations will be lost. This action cannot be undone.');
    }
    
    /**
     * {@inheritdoc}
     */
    public function getConfirmText() {
        return $this->t('Reset');
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildForm(array $form, FormStateInterface $form_state, MenuLinkInterface $menu_link_plugin = NULL) {
        $this->link = $menu_link_plugin;
        $form = parent::buildForm($form, $form_state);
        return $form;
    }
    
    /**
     * {@inheritdoc}
     */
    public function submitForm(array &$form, FormStateInterface $form_state) {
        $this->link = $this->menuLinkManager
            ->resetLink($this->link
            ->getPluginId());
        $this->messenger()
            ->addStatus($this->t('The menu link was reset to its default settings.'));
        $form_state->setRedirectUrl($this->getCancelUrl());
    }
    
    /**
     * Checks access based on whether the link can be reset.
     *
     * @param \Drupal\Core\Menu\MenuLinkInterface $menu_link_plugin
     *   The menu link plugin being checked.
     *
     * @return \Drupal\Core\Access\AccessResultInterface
     *   The access result.
     */
    public function linkIsResettable(MenuLinkInterface $menu_link_plugin) {
        return AccessResult::allowedIf($menu_link_plugin->isResettable())
            ->setCacheMaxAge(0);
    }

}