--- /dev/null
+<?php
+
+namespace Drupal\config_translation\Form;
+
+use Drupal\config_translation\ConfigMapperManagerInterface;
+use Drupal\Core\Cache\Cache;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Form\ConfirmFormBase;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Routing\RouteMatchInterface;
+use Drupal\Core\Url;
+use Drupal\language\ConfigurableLanguageManagerInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+
+/**
+ * Builds a form to delete configuration translation.
+ */
+class ConfigTranslationDeleteForm extends ConfirmFormBase {
+
+ /**
+ * The language manager.
+ *
+ * @var \Drupal\language\ConfigurableLanguageManagerInterface
+ */
+ protected $languageManager;
+
+ /**
+ * The configuration mapper manager.
+ *
+ * @var \Drupal\config_translation\ConfigMapperManagerInterface
+ */
+ protected $configMapperManager;
+
+ /**
+ * The module handler.
+ *
+ * @var \Drupal\Core\Extension\ModuleHandlerInterface
+ */
+ protected $moduleHandler;
+
+ /**
+ * The configuration translation to be deleted.
+ *
+ * @var \Drupal\config_translation\ConfigMapperInterface
+ */
+ protected $mapper;
+
+ /**
+ * The language of configuration translation.
+ *
+ * @var \Drupal\Core\Language\LanguageInterface
+ */
+ protected $language;
+
+ /**
+ * Constructs a ConfigTranslationDeleteForm.
+ *
+ * @param \Drupal\language\ConfigurableLanguageManagerInterface $language_manager
+ * The language override configuration storage.
+ * @param \Drupal\config_translation\ConfigMapperManagerInterface $config_mapper_manager
+ * The configuration mapper manager.
+ * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
+ * The module handler.
+ */
+ public function __construct(ConfigurableLanguageManagerInterface $language_manager, ConfigMapperManagerInterface $config_mapper_manager, ModuleHandlerInterface $module_handler) {
+ $this->languageManager = $language_manager;
+ $this->configMapperManager = $config_mapper_manager;
+ $this->moduleHandler = $module_handler;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container) {
+ return new static(
+ $container->get('language_manager'),
+ $container->get('plugin.manager.config_translation.mapper'),
+ $container->get('module_handler')
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getQuestion() {
+ return $this->t('Are you sure you want to delete the @language translation of %label?', ['%label' => $this->mapper->getTitle(), '@language' => $this->language->getName()]);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getConfirmText() {
+ return $this->t('Delete');
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getCancelUrl() {
+ return new Url($this->mapper->getOverviewRouteName(), $this->mapper->getOverviewRouteParameters());
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getFormId() {
+ return 'config_translation_delete_form';
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function buildForm(array $form, FormStateInterface $form_state, RouteMatchInterface $route_match = NULL, $plugin_id = NULL, $langcode = NULL) {
+ /** @var \Drupal\config_translation\ConfigMapperInterface $mapper */
+ $mapper = $this->configMapperManager->createInstance($plugin_id);
+ $mapper->populateFromRouteMatch($route_match);
+
+ $language = $this->languageManager->getLanguage($langcode);
+ if (!$language) {
+ throw new NotFoundHttpException();
+ }
+
+ $this->mapper = $mapper;
+ $this->language = $language;
+ return parent::buildForm($form, $form_state);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function submitForm(array &$form, FormStateInterface $form_state) {
+ foreach ($this->mapper->getConfigNames() as $name) {
+ $this->languageManager->getLanguageConfigOverride($this->language->getId(), $name)->delete();
+ }
+
+ // Flush all persistent caches.
+ $this->moduleHandler->invokeAll('cache_flush');
+ foreach (Cache::getBins() as $cache_backend) {
+ $cache_backend->deleteAll();
+ }
+
+ drupal_set_message($this->t('@language translation of %label was deleted', ['%label' => $this->mapper->getTitle(), '@language' => $this->language->getName()]));
+
+ $form_state->setRedirectUrl($this->getCancelUrl());
+ }
+
+}