fix app quit logic

.clang-format

@@ -56,8 +56,6 @@ IndentWidth: 2
 #PackConstructorInitializers: CurrentLine
 PointerAlignment: Left
 
-ReferenceAlignment: Left
-
 #QualifierAlignment: Left
 
 ReferenceAlignment: Left

src/MainWindow.cpp

@@ -8,8 +8,8 @@
 #include "TrackControls.h"
 #include "Version.h"
 
+#include <QApplication>
 #include <QCloseEvent>
-#include <QCoreApplication>
 #include <QFileDialog>
 #include <QJsonArray>
 #include <QJsonDocument>
@@ -98,7 +98,7 @@ void MainWindow::addQuitItemToMenu(QMenu* menu) const
 #endif
 
   auto* quit_app = menu->addAction(tr("Quit"));
-  connect(quit_app, &QAction::triggered, qApp, &QCoreApplication::quit);
+  connect(quit_app, &QAction::triggered, this, &MainWindow::quit);
 }
 
 #if defined(Q_OS_WIN) || defined(Q_OS_LINUX)
@@ -222,14 +222,12 @@ void MainWindow::resumePausedTracks()
 #if defined(Q_OS_WIN) || defined(Q_OS_LINUX)
 void MainWindow::closeEvent(QCloseEvent* event)
 {
-  if (!m_tray_available)
+  if (m_quit || !m_tray_available)
   {
     event->accept();
     return;
   }
 
-  if (!m_tray_icon->isVisible()) { event->accept(); }
-
   windowHide();
   event->ignore();
 }
@@ -243,6 +241,15 @@ void MainWindow::mousePressEvent(QMouseEvent* event)
   }
 }
 
+void MainWindow::quit()
+{
+#if defined(Q_OS_WIN) || defined(Q_OS_LINUX)
+  m_quit = true;
+#endif
+
+  QApplication::quit();
+}
+
 #if defined(Q_OS_WIN) || defined(Q_OS_LINUX)
 void MainWindow::setupTrayIcon()
 {

src/MainWindow.h

@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include <QAtomicInteger>
 #include <QFile>
 #include <QLabel>
 #include <QMainWindow>
@@ -48,6 +49,9 @@ public slots:
 #endif
   void mousePressEvent(QMouseEvent* event) override;
 
+private slots:
+  void quit();
+
 private:
 #if defined(Q_OS_WIN) || defined(Q_OS_LINUX)
   void setupTrayIcon();
@@ -66,6 +70,7 @@ public slots:
   bool m_tray_available;
   QPointer<QSystemTrayIcon> m_tray_icon;
   QPointer<QMenu> m_tray_menu;
+  QAtomicInteger<bool> m_quit{false};
 #endif
   QPointer<QMenu> m_mouse_menu;
 #if defined(Q_OS_LINUX)