4 * This file is part of the Symfony package.
6 * (c) Fabien Potencier <fabien@symfony.com>
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
12 namespace Symfony\Component\HttpKernel\DependencyInjection;
14 use Symfony\Component\DependencyInjection\ContainerInterface;
15 use Symfony\Component\HttpFoundation\RequestStack;
16 use Symfony\Component\HttpKernel\Fragment\FragmentHandler;
19 * Lazily loads fragment renderers from the dependency injection container.
21 * @author Fabien Potencier <fabien@symfony.com>
23 class LazyLoadingFragmentHandler extends FragmentHandler
26 private $rendererIds = array();
31 * RequestStack will become required in 3.0.
33 * @param ContainerInterface $container A container
34 * @param RequestStack $requestStack The Request stack that controls the lifecycle of requests
35 * @param bool $debug Whether the debug mode is enabled or not
37 public function __construct(ContainerInterface $container, $requestStack = null, $debug = false)
39 $this->container = $container;
41 if ((null !== $requestStack && !$requestStack instanceof RequestStack) || $debug instanceof RequestStack) {
43 $debug = $requestStack;
44 $requestStack = func_num_args() < 3 ? null : $tmp;
46 @trigger_error('The '.__METHOD__.' method now requires a RequestStack to be given as second argument as '.__CLASS__.'::setRequest method will not be supported anymore in 3.0.', E_USER_DEPRECATED);
47 } elseif (!$requestStack instanceof RequestStack) {
48 @trigger_error('The '.__METHOD__.' method now requires a RequestStack instance as '.__CLASS__.'::setRequest method will not be supported anymore in 3.0.', E_USER_DEPRECATED);
51 parent::__construct($requestStack, array(), $debug);
55 * Adds a service as a fragment renderer.
57 * @param string $name The service name
58 * @param string $renderer The render service id
60 public function addRendererService($name, $renderer)
62 $this->rendererIds[$name] = $renderer;
68 public function render($uri, $renderer = 'inline', array $options = array())
70 if (isset($this->rendererIds[$renderer])) {
71 $this->addRenderer($this->container->get($this->rendererIds[$renderer]));
73 unset($this->rendererIds[$renderer]);
76 return parent::render($uri, $renderer, $options);