Ctrl-Q from the main window quits the application (#69)

Ctrl-Q from the main window now quits the application.

fixes #61

src/MainWindow.cc

@@ -22,6 +22,8 @@
 #include <QNetworkReply>
 #include <QSettings>
 #include <QSystemTrayIcon>
+#include <QShortcut>
+#include <QApplication>
 
 MainWindow *MainWindow::instance_ = nullptr;
 
@@ -84,6 +86,9 @@ MainWindow::MainWindow(QWidget *parent)
                 this,
                 SLOT(showChatPage(QString, QString, QString)));
 
+        QShortcut *quitShortcut = new QShortcut(QKeySequence::Quit, this);
+        connect(quitShortcut, &QShortcut::activated, this, QApplication::quit);
+
         QSettings settings;
 
         if (hasActiveUser()) {

src/TrayIcon.cc

@@ -87,7 +87,7 @@ TrayIcon::TrayIcon(const QString &filename, QWidget *parent)
         quitAction_ = new QAction(tr("Quit"), parent);
 
         connect(viewAction_, SIGNAL(triggered()), parent, SLOT(show()));
-        connect(quitAction_, &QAction::triggered, this, [=]() { QApplication::quit(); });
+        connect(quitAction_, &QAction::triggered, this, QApplication::quit);
 
         menu->addAction(viewAction_);
         menu->addAction(quitAction_);