feat(i18n): add change language button on front page, fix #3530

public/js/controllers/authCtrl.js

@@ -47,7 +47,9 @@ angular.module('authCtrl', [])
         if ($scope.registrationForm.$invalid) {
           return;
         }
-        $http.post(API_URL + "/api/v2/register", $scope.registerVals).success(function(data, status, headers, config) {
+        var url = API_URL + "/api/v2/register";
+        if($rootScope.selectedLanguage) url = url + '?lang=' + $rootScope.selectedLanguage.code;
+        $http.post(url, $scope.registerVals).success(function(data, status, headers, config) {
           runAuth(data.id, data.apiToken);
         }).error(errorAlert);
       };

public/js/controllers/footerCtrl.js

@@ -4,6 +4,17 @@
   .controller("FooterCtrl", ['$scope', '$rootScope', 'User', '$http', 'Notification', 'API_URL',
   function($scope, $rootScope, User, $http, Notification, API_URL) {
 
+    if(typeof habitrpg === "undefined"){
+      $scope.languages = env.avalaibleLanguages;
+      $scope.selectedLanguage = _.find(env.avalaibleLanguages, {code: env.language.code});
+
+      $rootScope.selectedLanguage = $scope.selectedLanguage;
+      
+      $scope.changeLang = function(){
+        window.location = '?lang='+$scope.selectedLanguage.code;
+      }
+    }
+
     /**
      External Scripts
      JS files not needed right away (google charts) or entirely optional (analytics)

src/i18n.js

@@ -81,8 +81,11 @@ var getUserLanguage = function(req, res, next){
     req.language = lang;
     next();
   };
-
-  if(req.locals && req.locals.user){
+  console.log(req.query.lang)
+  if(req.query.lang){
+    req.language = translations[req.query.lang] ? (req.query.lang) : 'en';
+    next();
+  }else if(req.locals && req.locals.user){
     getFromUser(req.locals.user);
   }else if(req.session && req.session.userId){
     User.findOne({_id: req.session.userId}, function(err, user){

src/models/user.js

@@ -380,8 +380,6 @@ UserSchema.pre('save', function(next) {
         return newTask;
       });
     });
-
-    this.preferences.language = undefined;
   }
 
   //this.markModified('tasks');

views/shared/footer.jade

@@ -8,6 +8,10 @@ footer.footer(ng-controller='FooterCtrl')
             a(href='https://itunes.apple.com/us/app/habitrpg/id689569235?mt=8', target='_blank')=env.t('mobileIOS')
           li
             a(href='https://play.google.com/store/apps/details?id=com.ocdevel.habitrpg', target='_blank')=env.t('mobileAndroid')
+        if env.isStaticPage
+          h4=env.t('language')
+          select(ng-change='changeLang()', ng-model='selectedLanguage', ng-options='language.name for language in languages')
+
       .col-sm-3
         h4=env.t('footerCompany')
         ul.list-unstyled