function SystemConfigSubscriber::onConfigSave

Rebuilds the router when the default or admin theme is changed.

Parameters

\Drupal\Core\Config\ConfigCrudEvent $event: The configuration event.

File

core/modules/system/src/SystemConfigSubscriber.php, line 41

Class

SystemConfigSubscriber

System Config subscriber.

Namespace

Drupal\system

Code

public function onConfigSave(ConfigCrudEvent $event) {
    $saved_config = $event->getConfig();
    if ($saved_config->getName() == 'system.theme' && ($event->isChanged('admin') || $event->isChanged('default'))) {
        $this->routerBuilder
            ->setRebuildNeeded();
    }
}