public function ActiveLinkResponseFilter::onResponse in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 core/lib/Drupal/Core/EventSubscriber/ActiveLinkResponseFilter.php \Drupal\Core\EventSubscriber\ActiveLinkResponseFilter::onResponse()

Sets the 'is-active' class on links.

Parameters

\Symfony\Component\HttpKernel\Event\FilterResponseEvent $event: The response event.

File

core/lib/Drupal/Core/EventSubscriber/ActiveLinkResponseFilter.php, line 83

Contains \Drupal\Core\EventSubscriber\ActiveLinkResponseFilter.

Class

ActiveLinkResponseFilter

Subscribes to filter HTML responses, to set the 'is-active' class on links.

Namespace

Drupal\Core\EventSubscriber

Code

public function onResponse(FilterResponseEvent $event) {

  // Only care about HTML responses.
  if (stripos($event
    ->getResponse()->headers
    ->get('Content-Type'), 'text/html') === FALSE) {
    return;
  }

  // For authenticated users, the 'is-active' class is set in JavaScript.
  // @see system_page_attachments()
  if ($this->currentUser
    ->isAuthenticated()) {
    return;
  }
  $response = $event
    ->getResponse();
  $response
    ->setContent(static::setLinkActiveClass($response
    ->getContent(), ltrim($this->currentPath
    ->getPath(), '/'), $this->pathMatcher
    ->isFrontPage(), $this->languageManager
    ->getCurrentLanguage(LanguageInterface::TYPE_URL)
    ->getId(), $event
    ->getRequest()->query
    ->all()));
}