--- /dev/null
+<?php
+
+namespace Drupal\menu_link_content;
+
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Access\AccessManagerInterface;
+use Drupal\Core\Entity\EntityAccessControlHandler;
+use Drupal\Core\Entity\EntityHandlerInterface;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Session\AccountInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Defines the access control handler for the user entity type.
+ */
+class MenuLinkContentAccessControlHandler extends EntityAccessControlHandler implements EntityHandlerInterface {
+
+ /**
+ * The access manager to check routes by name.
+ *
+ * @var \Drupal\Core\Access\AccessManagerInterface
+ */
+ protected $accessManager;
+
+ /**
+ * Creates a new MenuLinkContentAccessControlHandler.
+ *
+ * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
+ * The entity type definition.
+ * @param \Drupal\Core\Access\AccessManagerInterface $access_manager
+ * The access manager to check routes by name.
+ */
+ public function __construct(EntityTypeInterface $entity_type, AccessManagerInterface $access_manager) {
+ parent::__construct($entity_type);
+
+ $this->accessManager = $access_manager;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
+ return new static($entity_type, $container->get('access_manager'));
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
+ switch ($operation) {
+ case 'view':
+ // There is no direct viewing of a menu link, but still for purposes of
+ // content_translation we need a generic way to check access.
+ return AccessResult::allowedIfHasPermission($account, 'administer menu');
+
+ case 'update':
+ if (!$account->hasPermission('administer menu')) {
+ return AccessResult::neutral("The 'administer menu' permission is required.")->cachePerPermissions();
+ }
+ else {
+ // Assume that access is allowed.
+ $access = AccessResult::allowed()->cachePerPermissions()->addCacheableDependency($entity);
+ /** @var \Drupal\menu_link_content\MenuLinkContentInterface $entity */
+ // If the link is routed determine whether the user has access unless
+ // they have the 'link to any page' permission.
+ if (!$account->hasPermission('link to any page') && ($url_object = $entity->getUrlObject()) && $url_object->isRouted()) {
+ $link_access = $this->accessManager->checkNamedRoute($url_object->getRouteName(), $url_object->getRouteParameters(), $account, TRUE);
+ $access = $access->andIf($link_access);
+ }
+ return $access;
+ }
+
+ case 'delete':
+ return AccessResult::allowedIf(!$entity->isNew() && $account->hasPermission('administer menu'))->cachePerPermissions()->addCacheableDependency($entity);
+ }
+ }
+
+}