<?php
/*
* This file is part of the Silex framework.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Silex\Provider\Locale;
use Pimple\Container;
use Symfony\Component\HttpKernel\Event\RequestEvent;
use Symfony\Component\HttpKernel\Event\FinishRequestEvent;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\Routing\RequestContext;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* Initializes the locale based on the current request.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Jérôme Tamarelle <jerome@tamarelle.net>
*/
class LocaleListener implements EventSubscriberInterface
{
private $app;
private $defaultLocale;
private $requestStack;
private $requestContext;
public function __construct(Container $app, $defaultLocale = 'en', RequestStack $requestStack, RequestContext $requestContext = null)
{
$this->app = $app;
$this->defaultLocale = $defaultLocale;
$this->requestStack = $requestStack;
$this->requestContext = $requestContext;
}
public function onKernelRequest(RequestEvent $event)
{
$request = $event->getRequest();
$request->setDefaultLocale($this->defaultLocale);
$this->setLocale($request);
$this->setRouterContext($request);
$this->app['locale'] = $request->getLocale();
}
public function onKernelFinishRequest(FinishRequestEvent $event)
{
if (null !== $parentRequest = $this->requestStack->getParentRequest()) {
$this->setRouterContext($parentRequest);
}
}
private function setLocale(Request $request)
{
if ($locale = $request->attributes->get('_locale')) {
$request->setLocale($locale);
}
}
private function setRouterContext(Request $request)
{
if (null !== $this->requestContext) {
$this->requestContext->setParameter('_locale', $request->getLocale());
}
}
public static function getSubscribedEvents()
{
return [
// must be registered after the Router to have access to the _locale
KernelEvents::REQUEST => [['onKernelRequest', 16]],
KernelEvents::FINISH_REQUEST => [['onKernelFinishRequest', 0]],
];
}
}