Fix Minz_Translate::availableLanguages() method

app/Models/ConfigurationSetter.php

@@ -89,7 +89,7 @@ class FreshRSS_ConfigurationSetter {
 	private function _language(&$data, $value) {
 		$value = strtolower($value);
 		$languages = Minz_Translate::availableLanguages();
-		if (!isset($languages[$value])) {
+		if (!in_array($value, $languages)) {
 			$value = 'en';
 		}
 		$data['language'] = $value;

app/i18n/en/gen.php

@@ -100,6 +100,10 @@ return array(
 		'notif_title_new_articles' => 'FreshRSS: new articles!',
 		'should_be_activated' => 'JavaScript must be enabled',
 	),
+	'lang' => array(
+		'en' => 'English',
+		'fr' => 'Français',
+	),
 	'menu' => array(
 		'about' => 'About',
 		'admin' => 'Administration',

app/i18n/fr/gen.php

@@ -100,6 +100,10 @@ return array(
 		'notif_title_new_articles' => 'FreshRSS : nouveaux articles !',
 		'should_be_activated' => 'Le JavaScript doit être activé.',
 	),
+	'lang' => array(
+		'en' => 'English',
+		'fr' => 'Français',
+	),
 	'menu' => array(
 		'about' => 'À propos',
 		'admin' => 'Administration',

app/views/configure/display.phtml

@@ -11,8 +11,8 @@
 			<div class="group-controls">
 				<select name="language" id="language">
 				<?php $languages = Minz_Translate::availableLanguages(); ?>
-				<?php foreach ($languages as $short => $lib) { ?>
-				<option value="<?php echo $short; ?>"<?php echo FreshRSS_Context::$user_conf->language === $short ? ' selected="selected"' : ''; ?>><?php echo $lib; ?></option>
+				<?php foreach ($languages as $lang) { ?>
+				<option value="<?php echo $lang; ?>"<?php echo FreshRSS_Context::$user_conf->language === $lang ? ' selected="selected"' : ''; ?>><?php echo _t('gen.lang.' . $lang); ?></option>
 				<?php } ?>
 				</select>
 			</div>

lib/Minz/Translate.php

@@ -9,6 +9,11 @@
  * It uses files in `./app/i18n/`
  */
 class Minz_Translate {
+	/**
+	 * $path_list is the list of registered base path to search translations.
+	 */
+	private static $path_list = array();
+
 	/**
 	 * $lang_name is the name of the current language to use.
 	 */
@@ -30,6 +35,7 @@ class Minz_Translate {
 	 */
 	public static function init($lang_name) {
 		self::$lang_name = $lang_name;
+		self::$path_list = array();
 		self::$lang_files = array();
 		self::$translates = array();
 		self::registerPath(APP_PATH . '/i18n');
@@ -45,11 +51,21 @@ class Minz_Translate {
 
 	/**
 	 * Return the list of available languages.
-	 * @return an array.
-	 * @todo fix this method.
+	 * @return an array containing langs found in different registered paths.
 	 */
 	public static function availableLanguages() {
-		return array();
+		$list_langs = array();
+
+		foreach (self::$path_list as $path) {
+			$path_langs = array_values(array_diff(
+				scandir($path),
+				array('..', '.')
+			));
+
+			$list_langs = array_merge($list_langs, $path_langs);
+		}
+
+		return array_unique($list_langs);
 	}
 
 	/**
@@ -58,6 +74,12 @@ class Minz_Translate {
 	 * @param $path a path containing i18n directories (e.g. ./en/, ./fr/).
 	 */
 	public static function registerPath($path) {
+		if (in_array($path, self::$path_list)) {
+			return;
+		}
+
+		self::$path_list[] = $path;
+
 		// We load first i18n files for the current language.
 		$lang_path = $path . '/' . self::$lang_name;
 		$list_i18n_files = array_values(array_diff(