--- /dev/null
+<?php
+
+namespace Drupal\entity\Menu;
+
+use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Menu\LocalActionDefault;
+use Drupal\Core\Routing\RouteProviderInterface;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Drupal\Core\StringTranslation\TranslationInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpFoundation\Request;
+
+/**
+ * Provides a local action to add an entity.
+ */
+class EntityAddLocalAction extends LocalActionDefault {
+
+ use StringTranslationTrait;
+
+ /**
+ * The entity type.
+ *
+ * @var \Drupal\Core\Entity\EntityTypeInterface
+ */
+ protected $entityType;
+
+ /**
+ * Constructs a EntityAddLocalAction object.
+ *
+ * @param array $configuration
+ * A configuration array containing information about the plugin instance.
+ * @param string $plugin_id
+ * The plugin_id for the plugin instance.
+ * @param mixed $plugin_definition
+ * The plugin implementation definition.
+ * @param \Drupal\Core\Routing\RouteProviderInterface $route_provider
+ * The route provider to load routes by name.
+ * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
+ * The entity type.
+ * @param \Drupal\Core\StringTranslation\TranslationInterface $string_translation
+ * The string translation service.
+ */
+ public function __construct(array $configuration, $plugin_id, $plugin_definition, RouteProviderInterface $route_provider, EntityTypeInterface $entity_type, TranslationInterface $string_translation) {
+ parent::__construct($configuration, $plugin_id, $plugin_definition, $route_provider);
+
+ $this->entityType = $entity_type;
+ $this->setStringTranslation($string_translation);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+ /* @var \Drupal\Core\Entity\EntityTypeManagerInterface */
+ $entity_type_manager = $container->get('entity_type.manager');
+ // The plugin ID is of the form
+ // "entity.entity_actions:entity.$entity_type_id.collection".
+ // @see entity.links.action.yml
+ // @see \Drupal\entity\Menu\EntityCollectionLocalActionProvider::buildLocalActions()
+ list(, $derivate_id) = explode(':', $plugin_id);
+ list(, $entity_type_id, ) = explode('.', $derivate_id);
+ return new static(
+ $configuration,
+ $plugin_id,
+ $plugin_definition,
+ $container->get('router.route_provider'),
+ $entity_type_manager->getDefinition($entity_type_id),
+ $container->get('string_translation')
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getTitle(Request $request = NULL) {
+ return (string) $this->t('Add @entity', [
+ '@entity' => (string) $this->entityType->getSingularLabel(),
+ ]);
+ }
+
+}