--- /dev/null
+<?php
+
+namespace Drupal\devel;
+
+use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Session\AccountInterface;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Manipulates entity type information.
+ *
+ * This class contains primarily bridged hooks for compile-time or
+ * cache-clear-time hooks. Runtime hooks should be placed in EntityOperations.
+ */
+class EntityTypeInfo implements ContainerInjectionInterface {
+
+ use StringTranslationTrait;
+
+ /**
+ * The current user.
+ *
+ * @var \Drupal\Core\Session\AccountInterface
+ */
+ protected $currentUser;
+
+ /**
+ * EntityTypeInfo constructor.
+ *
+ * @param \Drupal\Core\Session\AccountInterface $current_user
+ * Current user.
+ */
+ public function __construct(AccountInterface $current_user) {
+ $this->currentUser = $current_user;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container) {
+ return new static(
+ $container->get('current_user')
+ );
+ }
+
+ /**
+ * Adds devel links to appropriate entity types.
+ *
+ * This is an alter hook bridge.
+ *
+ * @param \Drupal\Core\Entity\EntityTypeInterface[] $entity_types
+ * The master entity type list to alter.
+ *
+ * @see hook_entity_type_alter()
+ */
+ public function entityTypeAlter(array &$entity_types) {
+ foreach ($entity_types as $entity_type_id => $entity_type) {
+ if (($entity_type->getFormClass('default') || $entity_type->getFormClass('edit')) && $entity_type->hasLinkTemplate('edit-form')) {
+ $entity_type->setLinkTemplate('devel-load', "/devel/$entity_type_id/{{$entity_type_id}}");
+ }
+ if ($entity_type->hasViewBuilderClass() && $entity_type->hasLinkTemplate('canonical')) {
+ $entity_type->setLinkTemplate('devel-render', "/devel/$entity_type_id/{{$entity_type_id}}/render");
+ }
+ if ($entity_type->hasLinkTemplate('devel-render') || $entity_type->hasLinkTemplate('devel-load')) {
+ $entity_type->setLinkTemplate('devel-definition', "/devel/$entity_type_id/{{$entity_type_id}}/definition");
+ }
+ }
+ }
+
+ /**
+ * Adds devel operations on entity that supports it.
+ *
+ * @param \Drupal\Core\Entity\EntityInterface $entity
+ * The entity on which to define an operation.
+ *
+ * @return array
+ * An array of operation definitions.
+ *
+ * @see hook_entity_operation()
+ */
+ public function entityOperation(EntityInterface $entity) {
+ $operations = [];
+ if ($this->currentUser->hasPermission('access devel information')) {
+ if ($entity->hasLinkTemplate('devel-load')) {
+ $operations['devel'] = [
+ 'title' => $this->t('Devel'),
+ 'weight' => 100,
+ 'url' => $entity->toUrl('devel-load'),
+ ];
+ }
+ elseif ($entity->hasLinkTemplate('devel-render')) {
+ $operations['devel'] = [
+ 'title' => $this->t('Devel'),
+ 'weight' => 100,
+ 'url' => $entity->toUrl('devel-render'),
+ ];
+ }
+ }
+ return $operations;
+ }
+
+}