/**
* This method returns a singleton instance of __I18n
*
* @return __I18n A singleton reference to the __I18n
*/
public static function &getInstance()
{
if (self::$_instance == null) {
// Use "Lazy initialization"
self::$_instance = new __I18n();
//once the __I18n has been built, let's negociate the locale with the client:
self::$_instance->_negociateLocale();
}
return self::$_instance;
}
public function negociateLocale()
{
$front_controller = __FrontController::getInstance();
$request = $front_controller->getRequest();
$app_name = md5(__ApplicationContext::getInstance()->getPropertyContent('APP_NAME'));
if ($request != null && $request->hasCookie('__LOCALE__' . $app_name)) {
$locale_code = $request->getCookie('__LOCALE__' . $app_name);
$return_value = new __Locale($locale_code);
} else {
if (key_exists('HTTP_ACCEPT_LANGUAGE', $_SERVER)) {
$http_accept_language = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
}
if (!empty($http_accept_language)) {
//by default:
if (class_exists('Locale')) {
$accepted_locale = Locale::acceptFromHttp($http_accept_language);
$candidate_language = Locale::getPrimaryLanguage($accepted_locale);
} else {
$accepted_languages = preg_split('/,/', $http_accept_language);
$candidate_language = $this->_getLanguageIsoCode($accepted_languages[0]);
}
}
if (isset($candidate_language) && __I18n::getInstance()->isSupportedLanguage($candidate_language)) {
$primary_language = $candidate_language;
} else {
$primary_language = __I18n::getInstance()->getDefaultLanguageIsoCode();
}
$return_value = new __Locale($primary_language);
$auth_cookie = new __Cookie('__LOCALE__' . $app_name, $primary_language, session_cache_expire() * 60, '/');
$response = __FrontController::getInstance()->getResponse();
if ($response != null) {
$response->addCookie($auth_cookie);
}
}
return $return_value;
}
public function addResource(__ResourceBase &$resource, $language_iso_code = null)
{
if ($language_iso_code == null) {
$language_iso_code = __I18n::getInstance()->getLocale()->getLanguageIsoCode();
}
$this->_resource_table->addResource($resource, $language_iso_code);
}
