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LanguageExtension.php
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LanguageExtension.php
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<?php
namespace App\Twig;
use App\Utility\LanguageUtility;
/**
* Language twig extension
*/
class LanguageExtension extends \Twig_Extension {
/** * @var \Slim\Container $container */
private $container;
public function __construct($container, $router, $uri) {
$this->container = $container;
$this->router = $router;
$this->uri = $uri;
}
public function getName() {
return 'language_ext';
}
/**
* Twig functions
*
* @return array
*/
public function getFunctions() {
return [
new \Twig_SimpleFunction('current_locale', [$this, 'currentLocale']),
new \Twig_SimpleFunction('generic_locale', [$this, 'genericLocale']),
new \Twig_SimpleFunction('is_current_locale_path', [$this, 'isCurrentLocalePath']),
new \Twig_SimpleFunction('langswitch', [$this, 'langSwitch']),
new \Twig_SimpleFunction('locale', [$this, 'locale']),
new \Twig_SimpleFunction('trans', [$this, 'trans']),
];
}
/**
* Twig filters
*
* @return array
*/
public function getFilters() {
return [
new \Twig_SimpleFilter('trans', [$this, 'trans']),
];
}
/**
* Get language switcher routes for current route
* Sample: {{ langswitch() }}
*
* @return array
*/
public function langSwitch() {
$settings = $this->container->get('settings');
$currentRouteName = substr($_SESSION['route'], 0, strlen($_SESSION['route']) - 5);
$langSwitch = [];
foreach ($settings['locale']['active'] as $activeLocale => $domain) {
// if translation file exists, load file to $locale
if (is_readable($settings['locale']['path'] . $activeLocale . '.php')) {
if ($activeLocale === $settings['locale']['generic_code']) {
continue;
}
$routeSuffix = $activeLocale;
$locale = require $settings['locale']['path'] . $activeLocale . '.php';
$routes = require $settings['config_path'] . 'routes/' . $activeLocale . '.php';
$domain = (isset($_SERVER['REQUEST_SCHEME']) ? $_SERVER['REQUEST_SCHEME'] : '') . '://' . $settings['locale']['active'][$activeLocale];
if (LanguageUtility::processHas(LanguageUtility::DOMAIN_ENABLED) && !isset($routes[rtrim($currentRouteName, '-')])) {
$routeSuffix = $settings['locale']['generic_code'];
}
if (LanguageUtility::processHas(LanguageUtility::DOMAIN_DISABLED)) {
$domain = '';
if (LanguageUtility::processHas(LanguageUtility::LOCALE_SESSION)) {
$routeSuffix = $settings['locale']['generic_code'];
}
}
$langSwitch[$currentRouteName . strtolower($activeLocale)] = [
'label' => $locale['langswitch-label'],
'image' => $locale['langswitch-image'],
'route' => $currentRouteName . strtolower($routeSuffix),
'domain' => $domain,
'args' => $_SESSION['route-args'],
'locale' => $activeLocale,
];
}
}
return $langSwitch;
}
/**
*
* @param string $locale
* @param string $name
* @param array $data
* @return boolean
*/
public function isCurrentLocalePath($locale, $name, $data = []) {
$result = FALSE;
if (LanguageUtility::processHas(LanguageUtility::DOMAIN_ENABLED)
|| (LanguageUtility::processHas(LanguageUtility::DOMAIN_DISABLED) && LanguageUtility::processHas(LanguageUtility::LOCALE_SESSION))) {
if ($locale === LanguageUtility::getCurrentLocale()) {
$result = TRUE;
}
} else {
$result = $this->router->pathFor($name, $data) === $this->uri->getBasePath() . '/' . ltrim($this->uri->getPath(), '/');
}
return $result;
}
/**
* Returns current language-region or generic code
* Sample: {{ locale() }}
*
* @return string
*/
public function locale() {
return LanguageUtility::getLocale();
}
/**
* Returns generic language code
* Sample: {{ generic_locale() }}
*
* @return string
*/
public function genericLocale() {
return LanguageUtility::getGenericLocale();
}
/**
* Get translation by translation key
* See http://php.net/manual/de/function.sprintf.php to use $vars
* Sample 1: {{ trans('lorem', {0: 'ipsum', 1: 'dollor'}) }}
* Sample 2: {{ 'lorem'|trans({0: 'ipsum', 1: 'dollor'}) }}
*
* @param string $key translation key
* @param array $vars optional
* @return string
*/
public function trans($key, $vars = []) {
return LanguageUtility::trans($key, $vars);
}
/**
* Returns current locale.
* Sample: {{ current_locale() }}
*
* @return string
*/
public function currentLocale() {
return strtolower(LanguageUtility::getCurrentLocale());
}
}