standard macOS app behavior

launcher/Application.cpp

@@ -871,6 +871,10 @@ Application::Application(int &argc, char **argv) : QApplication(argc, argv)
         m_mcedit.reset(new MCEditTool(m_settings));
     }
 
+    connect(this, &Application::clickedOnDock, [this]() {
+        this->showMainWindow();
+    });
+
     connect(this, &Application::aboutToQuit, [this](){
         if(m_instances)
         {
@@ -954,6 +958,22 @@ bool Application::createSetupWizard()
     return false;
 }
 
+bool Application::event(QEvent* event) {
+#ifdef Q_OS_MACOS
+    if (event->type() == QEvent::ApplicationStateChange) {
+        auto ev = static_cast<QApplicationStateChangeEvent*>(event);
+
+        if (m_prevAppState == Qt::ApplicationActive
+                && ev->applicationState() == Qt::ApplicationActive) {
+            qDebug() << "Clicked on dock!";
+            emit clickedOnDock();
+        }
+        m_prevAppState = ev->applicationState();
+    }
+#endif
+    return QApplication::event(event);
+}
+
 void Application::setupWizardFinished(int status)
 {
     qDebug() << "Wizard result =" << status;
@@ -1284,6 +1304,10 @@ void Application::subRunningInstance()
 
 bool Application::shouldExitNow() const
 {
+#ifdef Q_OS_MACOS
+    return false;
+#endif
+
     return m_runningInstances == 0 && m_openWindows == 0;
 }
 

launcher/Application.h

@@ -94,6 +94,8 @@ public:
     Application(int &argc, char **argv);
     virtual ~Application();
 
+    bool event(QEvent* event) override;
+
     std::shared_ptr<SettingsObject> settings() const {
         return m_settings;
     }
@@ -180,6 +182,7 @@ signals:
     void updateAllowedChanged(bool status);
     void globalSettingsAboutToOpen();
     void globalSettingsClosed();
+    void clickedOnDock();
 
 public slots:
     bool launch(
@@ -238,6 +241,10 @@ private:
     QString m_rootPath;
     Status m_status = Application::StartingUp;
 
+#ifdef Q_OS_MACOS
+    Qt::ApplicationState m_prevAppState = Qt::ApplicationInactive;
+#endif
+
 #if defined Q_OS_WIN32
     // used on Windows to attach the standard IO streams
     bool consoleAttached = false;