PLT-6518 Fixed user's locale not being loaded with redux actions (#6359)

* Stopped ManageLanguages component from mutating user

* Removed obsolete reference to mm_user

* PLT-6518 Fixed user's locale not being loaded with redux actions

webapp/actions/global_actions.jsx

@@ -379,7 +379,7 @@ export function newLocalizationSelected(locale) {
             translations: en
         });
     } else {
-        const localeInfo = I18n.getLanguageInfo(locale) || I18n.getLanguageInfo(global.window.mm_config.DefaultClientLocale);
+        const localeInfo = I18n.getLanguageInfo(locale);
 
         Client.getTranslations(
             localeInfo.url,
@@ -401,13 +401,23 @@ export function newLocalizationSelected(locale) {
     }
 }
 
+export function loadCurrentLocale() {
+    const user = UserStore.getCurrentUser();
+
+    if (user && user.locale) {
+        newLocalizationSelected(user.locale);
+    } else {
+        loadDefaultLocale();
+    }
+}
+
 export function loadDefaultLocale() {
-    const defaultLocale = global.window.mm_config.DefaultClientLocale;
+    let locale = global.window.mm_config.DefaultClientLocale;
-    let locale = global.window.mm_user ? global.window.mm_user.locale || defaultLocale : defaultLocale;
 
     if (!I18n.getLanguageInfo(locale)) {
         locale = 'en';
     }
+
     return newLocalizationSelected(locale);
 }
 

webapp/actions/user_actions.jsx

@@ -9,6 +9,7 @@ import UserStore from 'stores/user_store.jsx';
 import ChannelStore from 'stores/channel_store.jsx';
 
 import {getChannelMembersForUserIds} from 'actions/channel_actions.jsx';
+import {loadCurrentLocale} from 'actions/global_actions.jsx';
 import {loadStatusesForProfilesList, loadStatusesForProfilesMap} from 'actions/status_actions.jsx';
 
 import {getDirectChannelName, getUserIdFromChannelName} from 'utils/utils.jsx';
@@ -51,6 +52,8 @@ import {getTeamMembersByIds, getMyTeamMembers} from 'mattermost-redux/actions/te
 export function loadMe(callback) {
     loadMeRedux()(dispatch, getState).then(
         () => {
+            loadCurrentLocale();
+
             if (callback) {
                 callback();
             }

webapp/components/login/login_controller.jsx

@@ -210,7 +210,7 @@ export default class LoginController extends React.Component {
 
     finishSignin(team) {
         const query = this.props.location.query;
-        GlobalActions.loadDefaultLocale();
+        GlobalActions.loadCurrentLocale();
         if (query.redirect_to) {
             browserHistory.push(query.redirect_to);
         } else if (team) {

webapp/components/root.jsx

@@ -20,8 +20,8 @@ export default class Root extends React.Component {
     constructor(props) {
         super(props);
         this.state = {
-            locale: 'en',
+            locale: LocalizationStore.getLocale(),
-            translations: null
+            translations: LocalizationStore.getTranslations()
         };
 
         this.localizationChanged = this.localizationChanged.bind(this);
@@ -113,7 +113,7 @@ export default class Root extends React.Component {
         LocalizationStore.addChangeListener(this.localizationChanged);
 
         // Get our localizaiton
-        GlobalActions.loadDefaultLocale();
+        GlobalActions.loadCurrentLocale();
     }
 
     componentWillUnmount() {

webapp/components/user_settings/manage_languages.jsx

@@ -33,12 +33,10 @@ export default class ManageLanguage extends React.Component {
     changeLanguage(e) {
         e.preventDefault();
 
-        var user = this.props.user;
+        this.submitUser({
-        var locale = this.state.locale;
+            ...this.props.user,
-
+            locale: this.state.locale
-        user.locale = locale;
+        });
-
-        this.submitUser(user);
     }
     submitUser(user) {
         updateUser(user, Constants.UserUpdateEvents.LANGUAGE,

webapp/i18n/i18n.jsx

@@ -133,14 +133,11 @@ export function getLanguages() {
 }
 
 export function getLanguageInfo(locale) {
-    if (!availableLanguages) {
+    return getAllLanguages()[locale];
-        setAvailableLanguages();
-    }
-    return availableLanguages[locale];
 }
 
 export function isLanguageAvailable(locale) {
-    return Boolean(availableLanguages[locale]);
+    return Boolean(getLanguages()[locale]);
 }
 
 export function safariFix(callback) {

webapp/stores/localization_store.jsx

@@ -12,7 +12,7 @@ class LocalizationStoreClass extends EventEmitter {
     constructor() {
         super();
 
-        this.currentLocale = 'en';
+        this.currentLocale = '';
         this.currentTranslations = null;
     }