/**
* Return a collection of negotiated languages in descending order of preference.
*
* @param $appTypes
*
* @return SharedTypePairCollection
*/
public function languageAll($appTypes)
{
$request = $this->requestStack->getCurrentRequest();
$uaField = $request->server->get('HTTP_ACCEPT_LANGUAGE', '');
return $this->negotiate->languageAll($uaField, $appTypes);
}