vendor/symfony/http-kernel/DependencyInjection/LazyLoadingFragmentHandler.php line 42

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  1. <?php
  3. /*
  4. * This file is part of the Symfony package.
  5. *
  6. * (c) Fabien Potencier <fabien@symfony.com>
  7. *
  8. * For the full copyright and license information, please view the LICENSE
  9. * file that was distributed with this source code.
  10. */
  12. namespace Symfony\Component\HttpKernel\DependencyInjection;
  14. use Psr\Container\ContainerInterface;
  15. use Symfony\Component\HttpFoundation\RequestStack;
  16. use Symfony\Component\HttpKernel\Fragment\FragmentHandler;
  18. /**
  19. * Lazily loads fragment renderers from the dependency injection container.
  20. *
  21. * @author Fabien Potencier <fabien@symfony.com>
  22. */
  23. class LazyLoadingFragmentHandler extends FragmentHandler
  24. {
  25. private $container;
  27. /**
  28. * @var array<string, bool>
  29. */
  30. private $initialized = [];
  32. public function __construct(ContainerInterface $container, RequestStack $requestStack, bool $debug = false)
  33. {
  34. $this->container = $container;
  36. parent::__construct($requestStack, [], $debug);
  37. }
  39. /**
  40. * {@inheritdoc}
  41. */
  42. public function render($uri, string $renderer = 'inline', array $options = [])
  43. {
  44. if (!isset($this->initialized[$renderer]) && $this->container->has($renderer)) {
  45. $this->addRenderer($this->container->get($renderer));
  46. $this->initialized[$renderer] = true;
  47. }
  49. return parent::render($uri, $renderer, $options);
  50. }
  51. }