Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\system;
Chris@0: 
Chris@0: use Drupal\Core\Access\AccessResult;
Chris@0: use Drupal\Core\Entity\EntityInterface;
Chris@0: use Drupal\Core\Entity\EntityAccessControlHandler;
Chris@0: use Drupal\Core\Session\AccountInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Defines the access control handler for the menu entity type.
Chris@0:  *
Chris@0:  * @see \Drupal\system\Entity\Menu
Chris@0:  */
Chris@0: class MenuAccessControlHandler extends EntityAccessControlHandler {
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   protected $viewLabelOperation = TRUE;
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
Chris@0:     // There are no restrictions on viewing the label of a date format.
Chris@0:     if ($operation === 'view label') {
Chris@0:       return AccessResult::allowed();
Chris@0:     }
Chris@0:     // Locked menus could not be deleted.
Chris@0:     elseif ($operation === 'delete') {
Chris@0:       if ($entity->isLocked()) {
Chris@0:         return AccessResult::forbidden('The Menu config entity is locked.')->addCacheableDependency($entity);
Chris@0:       }
Chris@0:       else {
Chris@0:         return parent::checkAccess($entity, $operation, $account)->addCacheableDependency($entity);
Chris@0:       }
Chris@0:     }
Chris@0: 
Chris@0:     return parent::checkAccess($entity, $operation, $account);
Chris@0:   }
Chris@0: 
Chris@0: }