3 namespace Drupal\language\EventSubscriber;
5 use Drupal\Core\Session\AccountInterface;
6 use Drupal\Core\StringTranslation\Translator\TranslatorInterface;
7 use Drupal\language\ConfigurableLanguageManagerInterface;
8 use Drupal\language\LanguageNegotiatorInterface;
9 use Symfony\Component\HttpKernel\HttpKernelInterface;
10 use Symfony\Component\HttpKernel\KernelEvents;
11 use Symfony\Component\HttpKernel\Event\GetResponseEvent;
12 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
15 * Sets the $request property on the language manager.
17 class LanguageRequestSubscriber implements EventSubscriberInterface {
20 * The language manager service.
22 * @var \Drupal\language\ConfigurableLanguageManagerInterface
24 protected $languageManager;
27 * The language negotiator.
29 * @var \Drupal\language\LanguageNegotiatorInterface
31 protected $negotiator;
34 * The translation service.
36 * @var \Drupal\Core\StringTranslation\Translator\TranslatorInterface;
38 protected $translation;
41 * The current active user.
43 * @return \Drupal\Core\Session\AccountInterface
45 protected $currentUser;
48 * Constructs a LanguageRequestSubscriber object.
50 * @param \Drupal\language\ConfigurableLanguageManagerInterface $language_manager
51 * The language manager service.
52 * @param \Drupal\language\LanguageNegotiatorInterface $negotiator
53 * The language negotiator.
54 * @param \Drupal\Core\StringTranslation\Translator\TranslatorInterface $translation;
55 * The translation service.
56 * @param \Drupal\Core\Session\AccountInterface $current_user
57 * The current active user.
59 public function __construct(ConfigurableLanguageManagerInterface $language_manager, LanguageNegotiatorInterface $negotiator, TranslatorInterface $translation, AccountInterface $current_user) {
60 $this->languageManager = $language_manager;
61 $this->negotiator = $negotiator;
62 $this->translation = $translation;
63 $this->currentUser = $current_user;
67 * Sets the default language and initializes configuration overrides.
69 * @param \Symfony\Component\HttpKernel\Event\GetResponseEvent $event
70 * The Event to process.
72 public function onKernelRequestLanguage(GetResponseEvent $event) {
73 if ($event->getRequestType() == HttpKernelInterface::MASTER_REQUEST) {
74 $this->negotiator->setCurrentUser($this->currentUser);
75 if ($this->languageManager instanceof ConfigurableLanguageManagerInterface) {
76 $this->languageManager->setNegotiator($this->negotiator);
77 $this->languageManager->setConfigOverrideLanguage($this->languageManager->getCurrentLanguage());
79 // After the language manager has initialized, set the default langcode
80 // for the string translations.
81 $langcode = $this->languageManager->getCurrentLanguage()->getId();
82 $this->translation->setDefaultLangcode($langcode);
87 * Registers the methods in this class that should be listeners.
90 * An array of event listener definitions.
92 public static function getSubscribedEvents() {
93 $events[KernelEvents::REQUEST][] = ['onKernelRequestLanguage', 255];