Raphaël G. Git Repositories - airbundle/blob - EventSubscriber/LocaleSubscriber.php

   1 <?php
   2
   3 namespace Rapsys\AirBundle\EventSubscriber;
   4
   5 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
   6 use Symfony\Component\HttpKernel\Event\RequestEvent;
   7 use Symfony\Component\HttpKernel\KernelEvents;
   8 use Symfony\Component\HttpFoundation\RedirectResponse;
   9 use Symfony\Component\Routing\RouterInterface;
  10
  11 class LocaleSubscriber implements EventSubscriberInterface {
  12         private $locales;
  13         private $router;
  14
  15         public function __construct(RouterInterface $router, array $locales = ['en']) {
  16                 $this->locales = $locales;
  17                 $this->router = $router;
  18         }
  19
  20         public function onKernelRequest(RequestEvent $event) {
  21                 //Retrieve request
  22                 $request = $event->getRequest();
  23
  24                 //Check for session
  25                 //XXX: people blocking cookies will be stuck to preferred language version
  26                 if (!$request->hasPreviousSession()) {
  27                         //Get preferred language
  28                         //XXX: default language is unused, it will return locales[0] if everything fail
  29                         $preferred = $request->getPreferredLanguage($this->locales);
  30
  31                         //Check if preferred language differs from current request locale
  32                         if ($preferred != $request->getLocale()) {
  33                                 //Save preferred locale in session
  34                                 $request->getSession()->set('_locale', $preferred);
  35
  36                                 //Send vary header as current page locale depend on it
  37                                 header('Vary: accept-language');
  38
  39                                 //Set locale
  40                                 $request->setLocale($preferred);
  41
  42                                 //Set default locale
  43                                 $request->setDefaultLocale($preferred);
  44
  45                                 //Get router context
  46                                 $context = $this->router->getContext();
  47
  48                                 //Set context locale
  49                                 $context->setParameter('_locale', $preferred);
  50
  51                                 //Set back router context
  52                                 $this->router->setContext($context);
  53
  54                                 //End process
  55                                 return;
  56                         }
  57                 }
  58         }
  59
  60         public static function getSubscribedEvents() {
  61                 return [
  62                         // must be registered before the default locale listener
  63                         KernelEvents::REQUEST => [['onKernelRequest', 10]]
  64                 ];
  65         }
  66 }