Support menu_link_url_translated

Closes #3413606

modules/graphql_compose_menus/src/Plugin/GraphQL/DataProducer/MenuLinkUrlTranslated.php

+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\graphql_compose_menus\Plugin\GraphQL\DataProducer;
+
+use Drupal\Core\Entity\EntityRepositoryInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Menu\MenuLinkInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\Core\Url;
+use Drupal\graphql\GraphQL\Buffers\EntityUuidBuffer;
+use Drupal\graphql\Plugin\GraphQL\DataProducer\DataProducerPluginBase;
+use GraphQL\Deferred;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Returns the translated URL object of a menu link.
+ *
+ * @DataProducer(
+ *   id = "menu_link_url_translated",
+ *   name = @Translation("Menu link translated url"),
+ *   description = @Translation("Returns the translated URL of a menu link."),
+ *   produces = @ContextDefinition("any",
+ *     label = @Translation("URL"),
+ *   ),
+ *   consumes = {
+ *     "link" = @ContextDefinition("any",
+ *       label = @Translation("Menu link"),
+ *     ),
+ *   },
+ * )
+ */
+class MenuLinkUrlTranslated extends DataProducerPluginBase implements ContainerFactoryPluginInterface {
+
+  /**
+   * Create the menu link translated URL resolver.
+   *
+   * @param array $configuration
+   *   The plugin configuration.
+   * @param string $plugin_id
+   *   The plugin id.
+   * @param mixed $plugin_definition
+   *   The plugin definition.
+   * @param \Drupal\Core\Extension\ModuleHandlerInterface $moduleHandler
+   *   The module handler service.
+   * @param \Drupal\Core\Entity\EntityRepositoryInterface $entityRepository
+   *   The entity repository service.
+   * @param \Drupal\graphql\GraphQL\Buffers\EntityUuidBuffer $entityBuffer
+   *   The entity buffer service.
+   */
+  public function __construct(
+    array $configuration,
+    $plugin_id,
+    $plugin_definition,
+    protected ModuleHandlerInterface $moduleHandler,
+    protected EntityRepositoryInterface $entityRepository,
+    protected EntityUuidBuffer $entityBuffer,
+  ) {
+    parent::__construct($configuration, $plugin_id, $plugin_definition);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+    return new static(
+      $configuration,
+      $plugin_id,
+      $plugin_definition,
+      $container->get('module_handler'),
+      $container->get('entity.repository'),
+      $container->get('graphql.buffer.entity_uuid'),
+    );
+  }
+
+  /**
+   * Resolve the translated menu link url.
+   *
+   * @param \Drupal\Core\Menu\MenuLinkInterface $link
+   *   The menu link to resolve the url off of.
+   *
+   * @return \GraphQL\Deferred|\Drupal\Core\Url
+   *   The Url or the deferred Url.
+   */
+  public function resolve(MenuLinkInterface $link): Deferred|Url {
+
+    if (!$this->moduleHandler->moduleExists('translatable_menu_link_uri')) {
+      return $link->getUrlObject();
+    }
+
+    $plugin_id = $link->getBaseId();
+    $derivative_id = $link->getDerivativeId();
+
+    if ($plugin_id !== 'menu_link_content' || empty($derivative_id)) {
+      return $link->getUrlObject();
+    }
+
+    $resolver = $this->entityBuffer->add('menu_link_content', $derivative_id);
+
+    return new Deferred(function () use ($link, $resolver) {
+      if ($entity = $resolver()) {
+        $translated_entity = $this->entityRepository->getTranslationFromContext($entity);
+
+        /** @var \Drupal\link\Plugin\Field\FieldType\LinkItem $link_item|null */
+        $link_item = $translated_entity->link_override->first();
+
+        if (!$link_item->isEmpty()) {
+          return $link_item->getUrl();
+        }
+      }
+
+      return $link->getUrlObject();
+    });
+  }
+
+}