--- /dev/null
+<?php
+
+namespace Drupal\media\Form;
+
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Drupal\Core\Form\ConfirmFormBase;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Url;
+use Drupal\user\PrivateTempStoreFactory;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpFoundation\RedirectResponse;
+
+/**
+ * Provides a confirmation form to delete multiple media items at once.
+ */
+class MediaDeleteMultipleConfirmForm extends ConfirmFormBase {
+
+ /**
+ * The array of media items to delete, indexed by ID and language.
+ *
+ * @var string[][]
+ */
+ protected $mediaItems = [];
+
+ /**
+ * The tempstore factory.
+ *
+ * @var \Drupal\user\PrivateTempStoreFactory
+ */
+ protected $tempStoreFactory;
+
+ /**
+ * The entity storage.
+ *
+ * @var \Drupal\Core\Entity\EntityStorageInterface
+ */
+ protected $storage;
+
+ /**
+ * Constructs a MediaDeleteMultipleConfirmForm form object.
+ *
+ * @param \Drupal\user\PrivateTempStoreFactory $temp_store_factory
+ * The tempstore factory.
+ * @param \Drupal\Core\Entity\EntityTypeManagerInterface $manager
+ * The entity type manager.
+ */
+ public function __construct(PrivateTempStoreFactory $temp_store_factory, EntityTypeManagerInterface $manager) {
+ $this->tempStoreFactory = $temp_store_factory;
+ $this->storage = $manager->getStorage('media');
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container) {
+ return new static(
+ $container->get('user.private_tempstore'),
+ $container->get('entity_type.manager')
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getFormId() {
+ return 'media_multiple_delete_confirm';
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getQuestion() {
+ return $this->formatPlural(count($this->mediaItems), 'Are you sure you want to delete this item?', 'Are you sure you want to delete these items?');
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getCancelUrl() {
+ // @todo Change to media library when #2834729 is done.
+ // https://www.drupal.org/node/2834729.
+ return new Url('system.admin_content');
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getConfirmText() {
+ return $this->t('Delete');
+ }
+
+ /**
+ * {@inheritdoc}
+ *
+ * @todo Change to trait or base class when #2843395 is done.
+ * @see https://www.drupal.org/node/2843395
+ */
+ public function buildForm(array $form, FormStateInterface $form_state) {
+ $this->mediaItems = $this->tempStoreFactory->get('media_multiple_delete_confirm')->get($this->currentUser()->id());
+ if (empty($this->mediaItems)) {
+ return new RedirectResponse($this->getCancelUrl()->setAbsolute()->toString());
+ }
+ /** @var \Drupal\media\MediaInterface[] $entities */
+ $entities = $this->storage->loadMultiple(array_keys($this->mediaItems));
+
+ $items = [];
+ foreach ($this->mediaItems as $id => $langcodes) {
+ foreach ($langcodes as $langcode) {
+ $entity = $entities[$id]->getTranslation($langcode);
+ $key = $id . ':' . $langcode;
+ $default_key = $id . ':' . $entity->getUntranslated()->language()->getId();
+
+ // If we have a translated entity we build a nested list of translations
+ // that will be deleted.
+ $languages = $entity->getTranslationLanguages();
+ if (count($languages) > 1 && $entity->isDefaultTranslation()) {
+ $names = [];
+ foreach ($languages as $translation_langcode => $language) {
+ $names[] = $language->getName();
+ unset($items[$id . ':' . $translation_langcode]);
+ }
+ $items[$default_key] = [
+ 'label' => [
+ '#markup' => $this->t('@label (Original translation) - <em>The following translations will be deleted:</em>', ['@label' => $entity->label()]),
+ ],
+ 'deleted_translations' => [
+ '#theme' => 'item_list',
+ '#items' => $names,
+ ],
+ ];
+ }
+ elseif (!isset($items[$default_key])) {
+ $items[$key] = $entity->label();
+ }
+ }
+ }
+
+ $form['entities'] = [
+ '#theme' => 'item_list',
+ '#items' => $items,
+ ];
+ return parent::buildForm($form, $form_state);
+ }
+
+ /**
+ * {@inheritdoc}
+ *
+ * @todo Change to trait or base class when #2843395 is done.
+ * @see https://www.drupal.org/node/2843395
+ */
+ public function submitForm(array &$form, FormStateInterface $form_state) {
+ if ($form_state->getValue('confirm') && !empty($this->mediaItems)) {
+ $total_count = 0;
+ $delete_entities = [];
+ /** @var \Drupal\Core\Entity\ContentEntityInterface[][] $delete_translations */
+ $delete_translations = [];
+ /** @var \Drupal\media\MediaInterface[] $entities */
+ $entities = $this->storage->loadMultiple(array_keys($this->mediaItems));
+
+ foreach ($this->mediaItems as $id => $langcodes) {
+ foreach ($langcodes as $langcode) {
+ $entity = $entities[$id]->getTranslation($langcode);
+ if ($entity->isDefaultTranslation()) {
+ $delete_entities[$id] = $entity;
+ unset($delete_translations[$id]);
+ $total_count += count($entity->getTranslationLanguages());
+ }
+ elseif (!isset($delete_entities[$id])) {
+ $delete_translations[$id][] = $entity;
+ }
+ }
+ }
+
+ if ($delete_entities) {
+ $this->storage->delete($delete_entities);
+ $this->logger('media')->notice('Deleted @count media items.', ['@count' => count($delete_entities)]);
+ }
+
+ if ($delete_translations) {
+ $count = 0;
+ foreach ($delete_translations as $id => $translations) {
+ $entity = $entities[$id]->getUntranslated();
+ foreach ($translations as $translation) {
+ $entity->removeTranslation($translation->language()->getId());
+ }
+ $entity->save();
+ $count += count($translations);
+ }
+ if ($count) {
+ $total_count += $count;
+ $this->logger('media')->notice('Deleted @count media translations.', ['@count' => $count]);
+ }
+ }
+
+ if ($total_count) {
+ drupal_set_message($this->formatPlural($total_count, 'Deleted 1 media item.', 'Deleted @count media items.'));
+ }
+
+ $this->tempStoreFactory->get('media_multiple_delete_confirm')->delete(\Drupal::currentUser()->id());
+ }
+
+ // @todo Change to media library when #2834729 is done.
+ // https://www.drupal.org/node/2834729.
+ $form_state->setRedirect('system.admin_content');
+ }
+
+}