/**
* Title callback when editing an existing flagging.
*
* @param \Drupal\flag\FlagInterface $flag
* The flag entity.
* @param int $entity_id
* The entity ID to unflag.
*
* @return string
* The flag field entry form title.
*/
public function editTitle(FlagInterface $flag, $entity_id) {
$link_type = $flag->getLinkTypePlugin();
return $link_type->getEditFlaggingTitle();
}
/**
* Generates a response object after handing the un/flag request.
*
* Depending on the wrapper format of the request, it will either redirect
* or return an ajax response.
*
* @param \Drupal\flag\FlagInterface $flag
* The flag entity.
* @param \Drupal\Core\Entity\EntityInterface $entity
* The entity object.
* @param \Symfony\Component\HttpFoundation\Request $request
* The request.
*
* @return \Drupal\Core\Ajax\AjaxResponse|\Symfony\Component\HttpFoundation\RedirectResponse
* The response object.
*/
protected function generateResponse(FlagInterface $flag, EntityInterface $entity, Request $request) {
if ($request->get(MainContentViewSubscriber::WRAPPER_FORMAT) == 'drupal_ajax') {
// Create a new AJAX response.
$response = new AjaxResponse();
// Get the link type plugin.
$link_type = $flag->getLinkTypePlugin();
// Generate the link render array and get the link CSS ID.
$link = $link_type->getLink($flag, $entity);
$link_id = '#' . $link['link']['#attributes']['id'];
// Create a new JQuery Replace command to update the link display.
$replace = new ReplaceCommand($link_id, $this->renderer->renderPlain($link));
$response->addCommand($replace);
return $response;
}
else {
// Redirect back to the entity. A passed in destination query parameter
// will automatically override this.
$url_info = $entity->toUrl();
return $this->redirect($url_info->getRouteName(), $url_info->getRouteParameters());
}
}