/**
* Selects the block place override of the block page display variant.
*
* @param \Drupal\Core\Render\PageDisplayVariantSelectionEvent $event
* The event to process.
*/
public function onBlockPageDisplayVariantSelected(PageDisplayVariantSelectionEvent $event)
{
if ($event->getPluginId() === 'block_page') {
if ($this->requestStack->getCurrentRequest()->query->has('block-place') && $this->account->hasPermission('administer blocks')) {
$event->setPluginId('block_place_page');
}
$event->addCacheContexts(['user.permissions', 'url.query_args']);
}
}
