LazyLoadingFragmentHandler.php
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<?php
/*
* This file is part of the Symfony package.
*
* (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 Symfony\Component\HttpKernel\DependencyInjection;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\HttpKernel\Fragment\FragmentHandler;
/**
* Lazily loads fragment renderers from the dependency injection container.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class LazyLoadingFragmentHandler extends FragmentHandler
{
private $container;
private $rendererIds = array();
/**
* Constructor.
*
* @param ContainerInterface $container A container
* @param RequestStack $requestStack The Request stack that controls the lifecycle of requests
* @param bool $debug Whether the debug mode is enabled or not
*/
public function __construct(ContainerInterface $container, RequestStack $requestStack, $debug = false)
{
$this->container = $container;
parent::__construct($requestStack, array(), $debug);
}
/**
* Adds a service as a fragment renderer.
*
* @param string $renderer The render service id
*/
public function addRendererService($name, $renderer)
{
$this->rendererIds[$name] = $renderer;
}
/**
* {@inheritdoc}
*/
public function render($uri, $renderer = 'inline', array $options = array())
{
if (isset($this->rendererIds[$renderer])) {
$this->addRenderer($this->container->get($this->rendererIds[$renderer]));
unset($this->rendererIds[$renderer]);
}
return parent::render($uri, $renderer, $options);
}
}