Fix locale change from the Web UI

src/eventmanager.cpp

@@ -38,6 +38,7 @@
 //#include "proplistdelegate.h"
 #include "torrentpersistentdata.h"
 #include <QDebug>
+#include <QTranslator>
 
 EventManager::EventManager(QObject *parent, Bittorrent *BTSession)
   : QObject(parent), BTSession(BTSession)
@@ -124,8 +125,20 @@ QList<QVariantMap> EventManager::getPropFilesInfo(QString hash) const {
 
 void EventManager::setGlobalPreferences(QVariantMap m) const {
   // UI
-  if(m.contains("locale"))
+  if(m.contains("locale")) {
-    Preferences::setLocale(m["locale"].toString());
+    QString locale = m["locale"].toString();
+    if(Preferences::getLocale() != locale) {
+      QTranslator *translator = new QTranslator;
+      if(translator->load(QString::fromUtf8(":/lang/qbittorrent_") + locale)){
+        qDebug("%s locale recognized, using translation.", qPrintable(locale));
+      }else{
+        qDebug("%s locale unrecognized, using default (en_GB).", qPrintable(locale));
+      }
+      qApp->installTranslator(translator);
+    }
+
+    Preferences::setLocale(locale);
+  }
   // Downloads
   if(m.contains("save_path"))
     Preferences::setSavePath(m["save_path"].toString());

src/json.h

@@ -132,6 +132,7 @@ namespace json {
           tmp += c;
         }
       }
+      if(!tmp.isEmpty()) couples << tmp;
       foreach(QString couple, couples) {
         QStringList parts = couple.split(":");
         if(parts.size() != 2) continue;

src/options_imp.cpp

@@ -37,6 +37,7 @@
 #include <QCloseEvent>
 #include <QDesktopWidget>
 #include <QStyleFactory>
+#include <QTranslator>
 
 #include <libtorrent/version.hpp>
 #include <time.h>
@@ -353,10 +354,22 @@ options_imp::options_imp(QWidget *parent):QDialog(parent){
     QIniSettings settings("qBittorrent", "qBittorrent");
     // Apply style
     useStyle();
+    // Load the translation
+    QString locale = getLocale();
+    if(Preferences::getLocale() != locale) {
+      QTranslator *translator = new QTranslator;
+      if(translator->load(QString::fromUtf8(":/lang/qbittorrent_") + locale)){
+        qDebug("%s locale recognized, using translation.", qPrintable(locale));
+      }else{
+        qDebug("%s locale unrecognized, using default (en_GB).", qPrintable(locale));
+      }
+      qApp->installTranslator(translator);
+    }
+
     settings.beginGroup("Preferences");
     // General preferences
     settings.beginGroup("General");
-    settings.setValue(QString::fromUtf8("Locale"), getLocale());
+    settings.setValue(QString::fromUtf8("Locale"), locale);
     settings.setValue(QString::fromUtf8("Style"), getStyle());
     settings.setValue(QString::fromUtf8("AlternatingRowColors"), checkAltRowColors->isChecked());
     settings.setValue(QString::fromUtf8("SystrayEnabled"), systrayIntegration());

src/webui/preferences_content.html

@@ -539,6 +539,7 @@
                             },
 			    onSuccess: function() {
                                 // Close window
+                                window.parent.location.reload();
 				window.parent.closeWindows();
 			    }
 		}).send();