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[yaffs-website] / vendor / symfony / http-kernel / DependencyInjection / LazyLoadingFragmentHandler.php

diff --git a/vendor/symfony/http-kernel/DependencyInjection/LazyLoadingFragmentHandler.php b/vendor/symfony/http-kernel/DependencyInjection/LazyLoadingFragmentHandler.php
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+++ b/vendor/symfony/http-kernel/DependencyInjection/LazyLoadingFragmentHandler.php
@@ -0,0 +1,78 @@
+<?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.
+     *
+     * RequestStack will become required in 3.0.
+     *
+     * @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 = null, $debug = false)
+    {
+        $this->container = $container;
+
+        if ((null !== $requestStack && !$requestStack instanceof RequestStack) || $debug instanceof RequestStack) {
+            $tmp = $debug;
+            $debug = $requestStack;
+            $requestStack = func_num_args() < 3 ? null : $tmp;
+
+            @trigger_error('The '.__METHOD__.' method now requires a RequestStack to be given as second argument as '.__CLASS__.'::setRequest method will not be supported anymore in 3.0.', E_USER_DEPRECATED);
+        } elseif (!$requestStack instanceof RequestStack) {
+            @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);
+        }
+
+        parent::__construct($requestStack, array(), $debug);
+    }
+
+    /**
+     * Adds a service as a fragment renderer.
+     *
+     * @param string $name     The service name
+     * @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);
+    }
+}