diff core/modules/field_ui/src/Access/ViewModeAccessCheck.php @ 0:c75dbcec494b

Initial commit from drush-created site

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/field_ui/src/Access/ViewModeAccessCheck.php	Thu Jul 05 14:24:15 2018 +0000
@@ -0,0 +1,87 @@
+<?php
+
+namespace Drupal\field_ui\Access;
+
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Entity\EntityManagerInterface;
+use Drupal\Core\Routing\Access\AccessInterface;
+use Drupal\Core\Routing\RouteMatchInterface;
+use Drupal\Core\Session\AccountInterface;
+use Symfony\Component\Routing\Route;
+
+/**
+ * Defines an access check for entity view mode routes.
+ *
+ * @see \Drupal\Core\Entity\Entity\EntityViewMode
+ */
+class ViewModeAccessCheck implements AccessInterface {
+
+  /**
+   * The entity manager.
+   *
+   * @var \Drupal\Core\Entity\EntityManagerInterface
+   */
+  protected $entityManager;
+
+  /**
+   * Creates a new ViewModeAccessCheck.
+   *
+   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
+   *   The entity manager.
+   */
+  public function __construct(EntityManagerInterface $entity_manager) {
+    $this->entityManager = $entity_manager;
+  }
+
+  /**
+   * Checks access to the view mode.
+   *
+   * @param \Symfony\Component\Routing\Route $route
+   *   The route to check against.
+   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
+   *   The parametrized route.
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *   The currently logged in account.
+   * @param string $view_mode_name
+   *   (optional) The view mode. Defaults to 'default'.
+   * @param string $bundle
+   *   (optional) The bundle. Different entity types can have different names
+   *   for their bundle key, so if not specified on the route via a {bundle}
+   *   parameter, the access checker determines the appropriate key name, and
+   *   gets the value from the corresponding request attribute. For example,
+   *   for nodes, the bundle key is "node_type", so the value would be
+   *   available via the {node_type} parameter rather than a {bundle}
+   *   parameter.
+   *
+   * @return \Drupal\Core\Access\AccessResultInterface
+   *   The access result.
+   */
+  public function access(Route $route, RouteMatchInterface $route_match, AccountInterface $account, $view_mode_name = 'default', $bundle = NULL) {
+    $access = AccessResult::neutral();
+    if ($entity_type_id = $route->getDefault('entity_type_id')) {
+      if (empty($bundle)) {
+        $entity_type = $this->entityManager->getDefinition($entity_type_id);
+        $bundle = $route_match->getRawParameter($entity_type->getBundleEntityType());
+      }
+
+      $visibility = FALSE;
+      if ($view_mode_name == 'default') {
+        $visibility = TRUE;
+      }
+      elseif ($entity_display = $this->entityManager->getStorage('entity_view_display')->load($entity_type_id . '.' . $bundle . '.' . $view_mode_name)) {
+        $visibility = $entity_display->status();
+      }
+
+      if ($view_mode_name != 'default' && $entity_display) {
+        $access->addCacheableDependency($entity_display);
+      }
+
+      if ($visibility) {
+        $permission = $route->getRequirement('_field_ui_view_mode_access');
+        $access = $access->orIf(AccessResult::allowedIfHasPermission($account, $permission));
+      }
+    }
+    return $access;
+  }
+
+}