/**
* Initializes the local cache for language path processors.
*
* @param string $scope
* The scope of the processors: "inbound" or "outbound".
*/
protected function initProcessors($scope)
{
$interface = '\\Drupal\\Core\\PathProcessor\\' . Unicode::ucfirst($scope) . 'PathProcessorInterface';
$this->processors[$scope] = array();
$weights = [];
foreach ($this->languageManager->getLanguageTypes() as $type) {
foreach ($this->negotiator->getNegotiationMethods($type) as $method_id => $method) {
if (!isset($this->processors[$scope][$method_id])) {
$reflector = new \ReflectionClass($method['class']);
if ($reflector->implementsInterface($interface)) {
$this->processors[$scope][$method_id] = $this->negotiator->getNegotiationMethodInstance($method_id);
$weights[$method_id] = $method['weight'];
}
}
}
}
// Sort the processors list, so that their functions are called in the
// order specified by the weight of the methods.
uksort($this->processors[$scope], function ($method_id_a, $method_id_b) use($weights) {
$a_weight = $weights[$method_id_a];
$b_weight = $weights[$method_id_b];
if ($a_weight == $b_weight) {
return 0;
}
return $a_weight < $b_weight ? -1 : 1;
});
}
/**
* Initializes the local cache for language path processors.
*
* @param string $scope
* The scope of the processors: "inbound" or "outbound".
*/
protected function initProcessors($scope)
{
$interface = '\\Drupal\\Core\\PathProcessor\\' . Unicode::ucfirst($scope) . 'PathProcessorInterface';
$this->processors[$scope] = array();
foreach ($this->languageManager->getLanguageTypes() as $type) {
foreach ($this->negotiator->getNegotiationMethods($type) as $method_id => $method) {
if (!isset($this->processors[$scope][$method_id])) {
$reflector = new \ReflectionClass($method['class']);
if ($reflector->implementsInterface($interface)) {
$this->processors[$scope][$method_id] = $this->negotiator->getNegotiationMethodInstance($method_id);
}
}
}
}
}
/**
* {@inheritdoc}
*/
public function getLanguageSwitchLinks($type, Url $url)
{
$links = FALSE;
if ($this->negotiator) {
foreach ($this->negotiator->getNegotiationMethods($type) as $method_id => $method) {
$reflector = new \ReflectionClass($method['class']);
if ($reflector->implementsInterface('\\Drupal\\language\\LanguageSwitcherInterface')) {
$result = $this->negotiator->getNegotiationMethodInstance($method_id)->getLanguageSwitchLinks($this->requestStack->getCurrentRequest(), $type, $url);
if (!empty($result)) {
// Allow modules to provide translations for specific links.
$this->moduleHandler->alter('language_switch_links', $result, $type, $path);
$links = (object) array('links' => $result, 'method_id' => $method_id);
break;
}
}
}
}
return $links;
}
