class ShortcutAccessControlHandler

class ShortcutAccessControlHandler extends EntityAccessControlHandler implements EntityHandlerInterface {
    
    /**
     * The shortcut_set storage.
     *
     * @var \Drupal\shortcut\ShortcutSetStorageInterface
     */
    protected $shortcutSetStorage;
    
    /**
     * Constructs a ShortcutAccessControlHandler object.
     *
     * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
     *   The entity type definition.
     * @param \Drupal\shortcut\ShortcutSetStorageInterface $shortcut_set_storage
     *   The shortcut_set storage.
     */
    public function __construct(EntityTypeInterface $entity_type, ShortcutSetStorageInterface $shortcut_set_storage) {
        parent::__construct($entity_type);
        $this->shortcutSetStorage = $shortcut_set_storage;
    }
    
    /**
     * {@inheritdoc}
     */
    public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
        return new static($entity_type, $container->get('entity_type.manager')
            ->getStorage('shortcut_set'));
    }
    
    /**
     * {@inheritdoc}
     */
    protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
        if ($shortcut_set = $this->shortcutSetStorage
            ->load($entity->bundle())) {
            return shortcut_set_edit_access($shortcut_set);
        }
        // @todo Fix this bizarre code: how can a shortcut exist without a shortcut
        // set? The above if-test is unnecessary. See https://www.drupal.org/node/2339903.
        return AccessResult::neutral()->addCacheableDependency($entity);
    }
    
    /**
     * {@inheritdoc}
     */
    protected function checkCreateAccess(AccountInterface $account, array $context, $entity_bundle = NULL) {
        if ($shortcut_set = $this->shortcutSetStorage
            ->load($entity_bundle)) {
            return shortcut_set_edit_access($shortcut_set);
        }
        // @todo Fix this bizarre code: how can a shortcut exist without a shortcut
        // set? The above if-test is unnecessary. See https://www.drupal.org/node/2339903.
        return AccessResult::neutral();
    }

}