Chris@14: <?php
Chris@14: 
Chris@14: namespace Drupal\content_translation\Access;
Chris@14: 
Chris@14: use Drupal\content_translation\ContentTranslationManager;
Chris@14: use Drupal\content_translation\ContentTranslationManagerInterface;
Chris@14: use Drupal\Core\Access\AccessResult;
Chris@14: use Drupal\Core\Entity\ContentEntityInterface;
Chris@14: use Drupal\Core\Entity\EntityTypeManagerInterface;
Chris@14: use Drupal\Core\Routing\Access\AccessInterface;
Chris@14: use Drupal\Core\Routing\RouteMatchInterface;
Chris@14: use Drupal\Core\Session\AccountInterface;
Chris@14: use Drupal\language\Entity\ContentLanguageSettings;
Chris@14: use Drupal\workflows\Entity\Workflow;
Chris@14: 
Chris@14: /**
Chris@14:  * Access check for entity translation deletion.
Chris@14:  *
Chris@14:  * @internal This additional access checker only aims to prevent deletions in
Chris@14:  *   pending revisions until we are able to flag revision translations as
Chris@14:  *   deleted.
Chris@14:  *
Chris@14:  * @todo Remove this in https://www.drupal.org/node/2945956.
Chris@14:  */
Chris@14: class ContentTranslationDeleteAccess implements AccessInterface {
Chris@14: 
Chris@14:   /**
Chris@14:    * The entity type manager.
Chris@14:    *
Chris@14:    * @var \Drupal\Core\Entity\EntityTypeManagerInterface
Chris@14:    */
Chris@14:   protected $entityTypeManager;
Chris@14: 
Chris@14:   /**
Chris@14:    * The content translation manager.
Chris@14:    *
Chris@14:    * @var \Drupal\content_translation\ContentTranslationManagerInterface
Chris@14:    */
Chris@14:   protected $contentTranslationManager;
Chris@14: 
Chris@14:   /**
Chris@14:    * Constructs a ContentTranslationDeleteAccess object.
Chris@14:    *
Chris@14:    * @param \Drupal\Core\Entity\EntityTypeManagerInterface $manager
Chris@14:    *   The entity type manager.
Chris@14:    * @param \Drupal\content_translation\ContentTranslationManagerInterface $content_translation_manager
Chris@14:    *   The content translation manager.
Chris@14:    */
Chris@14:   public function __construct(EntityTypeManagerInterface $manager, ContentTranslationManagerInterface $content_translation_manager) {
Chris@14:     $this->entityTypeManager = $manager;
Chris@14:     $this->contentTranslationManager = $content_translation_manager;
Chris@14:   }
Chris@14: 
Chris@14:   /**
Chris@14:    * Checks access to translation deletion for the specified route match.
Chris@14:    *
Chris@14:    * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
Chris@14:    *   The parameterized route.
Chris@14:    * @param \Drupal\Core\Session\AccountInterface $account
Chris@14:    *   The currently logged in account.
Chris@14:    *
Chris@14:    * @return \Drupal\Core\Access\AccessResultInterface
Chris@14:    *   The access result.
Chris@14:    */
Chris@14:   public function access(RouteMatchInterface $route_match, AccountInterface $account) {
Chris@14:     $requirement = $route_match->getRouteObject()->getRequirement('_access_content_translation_delete');
Chris@14:     $entity_type_id = current(explode('.', $requirement));
Chris@14:     $entity = $route_match->getParameter($entity_type_id);
Chris@14:     return $this->checkAccess($entity);
Chris@14:   }
Chris@14: 
Chris@14:   /**
Chris@14:    * Checks access to translation deletion for the specified entity.
Chris@14:    *
Chris@14:    * @param \Drupal\Core\Entity\ContentEntityInterface $entity
Chris@14:    *   The entity translation to be deleted.
Chris@14:    *
Chris@14:    * @return \Drupal\Core\Access\AccessResultInterface
Chris@14:    *   The access result.
Chris@14:    */
Chris@14:   public function checkAccess(ContentEntityInterface $entity) {
Chris@14:     $result = AccessResult::allowed();
Chris@14: 
Chris@14:     $entity_type_id = $entity->getEntityTypeId();
Chris@14:     $result->addCacheableDependency($entity);
Chris@14:     // Add the cache dependencies used by
Chris@14:     // ContentTranslationManager::isPendingRevisionSupportEnabled().
Chris@14:     if (\Drupal::moduleHandler()->moduleExists('content_moderation')) {
Chris@14:       foreach (Workflow::loadMultipleByType('content_moderation') as $workflow) {
Chris@14:         $result->addCacheableDependency($workflow);
Chris@14:       }
Chris@14:     }
Chris@14:     if (!ContentTranslationManager::isPendingRevisionSupportEnabled($entity_type_id, $entity->bundle())) {
Chris@14:       return $result;
Chris@14:     }
Chris@14: 
Chris@14:     if ($entity->isDefaultTranslation()) {
Chris@14:       return $result;
Chris@14:     }
Chris@14: 
Chris@14:     $config = ContentLanguageSettings::load($entity_type_id . '.' . $entity->bundle());
Chris@14:     $result->addCacheableDependency($config);
Chris@14:     if (!$this->contentTranslationManager->isEnabled($entity_type_id, $entity->bundle())) {
Chris@14:       return $result;
Chris@14:     }
Chris@14: 
Chris@14:     /** @var \Drupal\Core\Entity\ContentEntityStorageInterface $storage */
Chris@14:     $storage = $this->entityTypeManager->getStorage($entity_type_id);
Chris@14:     $revision_id = $storage->getLatestTranslationAffectedRevisionId($entity->id(), $entity->language()->getId());
Chris@14:     if (!$revision_id) {
Chris@14:       return $result;
Chris@14:     }
Chris@14: 
Chris@14:     /** @var \Drupal\Core\Entity\ContentEntityInterface $revision */
Chris@14:     $revision = $storage->loadRevision($revision_id);
Chris@14:     if ($revision->wasDefaultRevision()) {
Chris@14:       return $result;
Chris@14:     }
Chris@14: 
Chris@14:     $result = $result->andIf(AccessResult::forbidden());
Chris@14:     return $result;
Chris@14:   }
Chris@14: 
Chris@14: }