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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\Fragment;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Controller\ControllerReference;
use Symfony\Component\HttpKernel\EventListener\FragmentListener;
/**
* Adds the possibility to generate a fragment URI for a given Controller.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
abstract class RoutableFragmentRenderer implements FragmentRendererInterface
{
private $fragmentPath = '/_fragment';
/**
* Sets the fragment path that triggers the fragment listener.
*
* @param string $path The path
*
* @see FragmentListener
*/
public function setFragmentPath($path)
{
$this->fragmentPath = $path;
}
/**
* Generates a fragment URI for a given controller.
*
* @param bool $absolute Whether to generate an absolute URL or not
* @param bool $strict Whether to allow non-scalar attributes or not
*
* @return string A fragment URI
*/
protected function generateFragmentUri(ControllerReference $reference, Request $request, $absolute = false, $strict = true)
{
if ($strict) {
$this->checkNonScalar($reference->attributes);
}
// We need to forward the current _format and _locale values as we don't have
// a proper routing pattern to do the job for us.
// This makes things inconsistent if you switch from rendering a controller
// to rendering a route if the route pattern does not contain the special
// _format and _locale placeholders.
if (!isset($reference->attributes['_format'])) {
$reference->attributes['_format'] = $request->getRequestFormat();
}
if (!isset($reference->attributes['_locale'])) {
$reference->attributes['_locale'] = $request->getLocale();
}
$reference->attributes['_controller'] = $reference->controller;
$reference->query['_path'] = http_build_query($reference->attributes, '', '&');
$path = $this->fragmentPath.'?'.http_build_query($reference->query, '', '&');
if ($absolute) {
return $request->getUriForPath($path);
}
return $request->getBaseUrl().$path;
}
private function checkNonScalar(array $values)
{
foreach ($values as $key => $value) {
if (\is_array($value)) {
$this->checkNonScalar($value);
} elseif (!\is_scalar($value) && null !== $value) {
throw new \LogicException(sprintf('Controller attributes cannot contain non-scalar/non-null values (value for key "%s" is not a scalar or null).', $key));
}
}
}
}
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