+<?php
+
+namespace Drupal\entity\Plugin\Action\Derivative;
+
+use Drupal\Component\Plugin\Derivative\DeriverBase;
+use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;
+use Drupal\Core\Entity\ContentEntityInterface;
+use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides a delete action for each content entity type.
+ */
+class DeleteActionDeriver extends DeriverBase implements ContainerDeriverInterface {
+
+ /**
+ * The entity type manager.
+ *
+ * @var \Drupal\Core\Entity\EntityManagerInterface
+ */
+ protected $entityTypeManager;
+
+ /**
+ * Constructs a new DeleteActionDeriver object.
+ *
+ * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
+ * The entity type manager.
+ */
+ public function __construct(EntityTypeManagerInterface $entity_type_manager) {
+ $this->entityTypeManager = $entity_type_manager;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container, $base_plugin_id) {
+ return new static($container->get('entity_type.manager'));
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getDerivativeDefinitions($base_plugin_definition) {
+ if (empty($this->derivatives)) {
+ $definitions = [];
+ foreach ($this->getParticipatingEntityTypes() as $entity_type_id => $entity_type) {
+ $definition = $base_plugin_definition;
+ $definition['label'] = t('Delete @entity_type', ['@entity_type' => $entity_type->getLowercaseLabel()]);
+ $definition['type'] = $entity_type_id;
+ $definition['confirm_form_route_name'] = 'entity.' . $entity_type_id . '.delete_multiple_form';
+ $definitions[$entity_type_id] = $definition;
+ }
+ $this->derivatives = $definitions;
+ }
+
+ return parent::getDerivativeDefinitions($base_plugin_definition);
+ }
+
+ /**
+ * Gets a list of participating entity types.
+ *
+ * The list consists of all content entity types with a delete-multiple-form
+ * link template.
+ *
+ * @return \Drupal\Core\Entity\EntityTypeInterface[]
+ * The participating entity types, keyed by entity type id.
+ */
+ protected function getParticipatingEntityTypes() {
+ $entity_types = $this->entityTypeManager->getDefinitions();
+ $entity_types = array_filter($entity_types, function (EntityTypeInterface $entity_type) {
+ return $entity_type->isSubclassOf(ContentEntityInterface::class) && $entity_type->hasLinkTemplate('delete-multiple-form');
+ });
+
+ return $entity_types;
+ }
+
+}