+QtUi *QtUi::_instance = 0;
+MainWin *QtUi::_mainWin = 0;
+QList<AbstractNotificationBackend *> QtUi::_notificationBackends;
+QList<AbstractNotificationBackend::Notification> QtUi::_notifications;
+
+QtUi::QtUi() : GraphicalUi()
+{
+ if (_instance != 0) {
+ qWarning() << "QtUi has been instantiated again!";
+ return;
+ }
+ _instance = this;
+
+ QtUiSettings uiSettings;
+ Quassel::loadTranslation(uiSettings.value("Locale", QLocale::system()).value<QLocale>());
+
+ setContextMenuActionProvider(new ContextMenuActionProvider(this));
+ setToolBarActionProvider(new ToolBarActionProvider(this));
+
+ setUiStyle(new QtUiStyle(this));
+ _mainWin = new MainWin();
+
+ setMainWidget(_mainWin);
+
+ connect(_mainWin, SIGNAL(connectToCore(const QVariantMap &)), this, SIGNAL(connectToCore(const QVariantMap &)));
+ connect(_mainWin, SIGNAL(disconnectFromCore()), this, SIGNAL(disconnectFromCore()));
+ connect(Client::instance(), SIGNAL(bufferMarkedAsRead(BufferId)), SLOT(closeNotifications(BufferId)));
+}
+
+
+QtUi::~QtUi()
+{
+ unregisterAllNotificationBackends();
+ delete _mainWin;
+ _mainWin = 0;
+ _instance = 0;
+}
+
+
+void QtUi::init()
+{
+ _mainWin->init();
+ QtUiSettings uiSettings;
+ uiSettings.initAndNotify("UseSystemTrayIcon", this, SLOT(useSystemTrayChanged(QVariant)), true);
+
+ GraphicalUi::init(); // needs to be called after the mainWin is initialized
+}
+
+
+MessageModel *QtUi::createMessageModel(QObject *parent)
+{
+ return new ChatLineModel(parent);
+}
+
+
+AbstractMessageProcessor *QtUi::createMessageProcessor(QObject *parent)
+{
+ return new QtUiMessageProcessor(parent);
+}
+
+
+void QtUi::connectedToCore()
+{
+ _mainWin->connectedToCore();
+}
+
+
+void QtUi::disconnectedFromCore()
+{
+ _mainWin->disconnectedFromCore();
+ GraphicalUi::disconnectedFromCore();
+}
+
+
+void QtUi::useSystemTrayChanged(const QVariant &v)
+{
+ _useSystemTray = v.toBool();
+ SystemTray *tray = mainWindow()->systemTray();
+ if (_useSystemTray) {
+ if (tray->isSystemTrayAvailable())
+ tray->setVisible(true);
+ }
+ else {
+ if (tray->isSystemTrayAvailable() && mainWindow()->isVisible())
+ tray->setVisible(false);
+ }
+}
+
+
+bool QtUi::haveSystemTray()
+{
+ return mainWindow()->systemTray()->isSystemTrayAvailable() && instance()->_useSystemTray;
+}
+
+
+bool QtUi::isHidingMainWidgetAllowed() const
+{
+ return haveSystemTray();
+}
+
+
+void QtUi::minimizeRestore(bool show)
+{
+ SystemTray *tray = mainWindow()->systemTray();
+ if (show) {
+ if (tray && !_useSystemTray)
+ tray->setVisible(false);
+ }
+ else {
+ if (tray && _useSystemTray)
+ tray->setVisible(true);
+ }
+ GraphicalUi::minimizeRestore(show);
+}
+
+
+void QtUi::registerNotificationBackend(AbstractNotificationBackend *backend)
+{
+ if (!_notificationBackends.contains(backend)) {
+ _notificationBackends.append(backend);
+ instance()->connect(backend, SIGNAL(activated(uint)), SLOT(notificationActivated(uint)));
+ }
+}
+
+
+void QtUi::unregisterNotificationBackend(AbstractNotificationBackend *backend)
+{
+ _notificationBackends.removeAll(backend);
+}
+
+
+void QtUi::unregisterAllNotificationBackends()