function HtmlResponsePlaceholderStrategySubscriber::onRespond

Processes placeholders for HTML responses.

Parameters

\Symfony\Component\HttpKernel\Event\ResponseEvent $event: The event to process.

File

core/lib/Drupal/Core/EventSubscriber/HtmlResponsePlaceholderStrategySubscriber.php, line 45

Class

HtmlResponsePlaceholderStrategySubscriber

HTML response subscriber to allow for different placeholder strategies.

Namespace

Code

public function onRespond(ResponseEvent $event) {
  $response = $event->getResponse();
  if (!$response instanceof HtmlResponse) {
    return;
  }
  $attachments = $response->getAttachments();
  if (empty($attachments['placeholders'])) {
    return;
  }
  $attachments['placeholders'] = $this->placeholderStrategy
    ->processPlaceholders($attachments['placeholders']);
  $response->setAttachments($attachments);
}