Add / edit translations screens use Mercury Editor. Passes existing tests,...

Add / edit translations screens use Mercury Editor. Passes existing tests, needs translation-specific tests.

Closes #3406007

src/Controller/MercuryEditorContentTranslationController.php

+<?php
+
+namespace Drupal\mercury_editor\Controller;
+
+use Drupal\Core\Language\LanguageInterface;
+use Drupal\Core\Routing\RouteMatchInterface;
+use Drupal\mercury_editor\MercuryEditorTempstore;
+use Drupal\Core\Entity\EntityFieldManagerInterface;
+use Drupal\content_translation\ContentTranslationManager;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Drupal\content_translation\ContentTranslationManagerInterface;
+use Drupal\content_translation\Controller\ContentTranslationController;
+
+/**
+ * Launches Mercury Editor for relevant entity types.
+ */
+class MercuryEditorContentTranslationController extends ContentTranslationController {
+
+  /**
+   * The Mercury Editor Edit Tray tempstore service.
+   *
+   * @var \Drupal\mercury_editor\MercuryEditorTempstore
+   */
+  protected $tempstore;
+
+  /**
+   * Initializes a content translation controller.
+   *
+   * @param \Drupal\content_translation\ContentTranslationManagerInterface $manager
+   *   A content translation manager instance.
+   * @param \Drupal\Core\Entity\EntityFieldManagerInterface $entity_field_manager
+   *   The entity field manager service.
+   * @param \Drupal\mercury_editor\MercuryEditorTempstore $tempstore
+   *   The Mercury Editor tempstore service.
+   */
+  public function __construct(ContentTranslationManagerInterface $manager, EntityFieldManagerInterface $entity_field_manager, MercuryEditorTempstore $tempstore) {
+    parent::__construct($manager, $entity_field_manager);
+    $this->tempstore = $tempstore;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('content_translation.manager'),
+      $container->get('entity_field.manager'),
+      $container->get('mercury_editor.tempstore_repository')
+    );
+  }
+
+  /**
+   * {@inheritDoc}
+   */
+  public function add(LanguageInterface $source, LanguageInterface $target, RouteMatchInterface $route_match, $entity_type_id = NULL) {
+    /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
+    $entity = $route_match->getParameter($entity_type_id);
+
+    $bundles = $this->config('mercury_editor.settings')->get('bundles');
+    if (empty($bundles[$entity->getEntityTypeId()][$entity->bundle()])) {
+      return parent::add($source, $target, $route_match, $entity_type_id);
+    }
+
+    // In case of a pending revision, make sure we load the latest
+    // translation-affecting revision for the source language, otherwise the
+    // initial form values may not be up-to-date.
+    if (!$entity->isDefaultRevision() && ContentTranslationManager::isPendingRevisionSupportEnabled($entity_type_id, $entity->bundle())) {
+      /** @var \Drupal\Core\Entity\ContentEntityStorageInterface $storage */
+      $storage = $this->entityTypeManager()->getStorage($entity->getEntityTypeId());
+      $revision_id = $storage->getLatestTranslationAffectedRevisionId($entity->id(), $source->getId());
+      if ($revision_id != $entity->getRevisionId()) {
+        $entity = $storage->loadRevision($revision_id);
+      }
+    }
+
+    // @todo Exploit the upcoming hook_entity_prepare() when available.
+    // See https://www.drupal.org/node/1810394.
+    $this->prepareTranslation($entity, $source, $target);
+
+    $get_params = [
+      'translation_mode' => TRUE,
+      'langcode' => $target->getId(),
+      'source' => $source->getId(),
+      'target' => $target->getId(),
+      'translation_form' => !$entity->access('update'),
+    ];
+
+    $entity->in_preview = TRUE;
+    $entity->preview_view_mode = 'full';
+    $this->tempstore->set($entity);
+
+    $route_name = 'mercury_editor.editor';
+    $route_parameters = [
+      'mercury_editor_entity' => $entity->uuid(),
+    ];
+    return $this->redirect($route_name, $route_parameters, ['query' => $get_params]);
+  }
+
+}