ThemeTestSubscriber.php
Same filename in other branches
Namespace
Drupal\theme_test\EventSubscriberFile
-
core/
modules/ system/ tests/ modules/ theme_test/ src/ EventSubscriber/ ThemeTestSubscriber.php
View source
<?php
namespace Drupal\theme_test\EventSubscriber;
use Drupal\Core\Render\RendererInterface;
use Drupal\Core\Url;
use Drupal\Core\Routing\RouteMatchInterface;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\HttpKernel\Event\RequestEvent;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* Theme test subscriber for controller requests.
*/
class ThemeTestSubscriber implements EventSubscriberInterface {
/**
* The used container.
*
* @todo This variable is never initialized, so we don't know what it is.
* See https://www.drupal.org/node/2721315
*/
protected $container;
/**
* The current route match.
*
* @var \Drupal\Core\Routing\RouteMatchInterface
*/
protected $currentRouteMatch;
/**
* The renderer.
*
* @var \Drupal\Core\Render\RendererInterface
*/
protected $renderer;
/**
* Constructs a new ThemeTestSubscriber.
*
* @param \Drupal\Core\Routing\RouteMatchInterface $current_route_match
* The route match handler.
* @param \Drupal\Core\Render\RendererInterface $renderer
* The renderer.
*/
public function __construct(RouteMatchInterface $current_route_match, RendererInterface $renderer) {
$this->currentRouteMatch = $current_route_match;
$this->renderer = $renderer;
}
/**
* Generates themed output early in a page request.
*
* @see \Drupal\system\Tests\Theme\ThemeEarlyInitializationTest::testRequestListener()
*/
public function onRequest(RequestEvent $event) {
if ($this->currentRouteMatch
->getRouteName() === 'theme_test.request_listener') {
// First, force the theme registry to be rebuilt on this page request.
// This allows us to test a full initialization of the theme system in
// the code below.
\Drupal::service('theme.registry')->reset();
// Next, initialize the theme system by storing themed text in a global
// variable. We will use this later in
// theme_test_request_listener_page_callback() to test that even when the
// theme system is initialized this early, it is still capable of
// returning output and theming the page as a whole.
$more_link = [
'#type' => 'more_link',
'#url' => Url::fromRoute('user.page'),
'#attributes' => [
'title' => 'Themed output generated in a KernelEvents::REQUEST listener',
],
];
$GLOBALS['theme_test_output'] = $this->renderer
->renderInIsolation($more_link);
}
}
/**
* Ensures that the theme registry was not initialized.
*/
public function onView(RequestEvent $event) {
$current_route = $this->currentRouteMatch
->getRouteName();
$entity_autocomplete_route = [
'system.entity_autocomplete',
];
if (in_array($current_route, $entity_autocomplete_route)) {
if ($this->container
->initialized('theme.registry')) {
throw new \Exception('registry initialized');
}
}
}
/**
* {@inheritdoc}
*/
public static function getSubscribedEvents() : array {
$events[KernelEvents::REQUEST][] = [
'onRequest',
];
$events[KernelEvents::VIEW][] = [
'onView',
-1000,
];
return $events;
}
}
Classes
Title | Deprecated | Summary |
---|---|---|
ThemeTestSubscriber | Theme test subscriber for controller requests. |
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