Function resetActivationWindow

src/main.cpp:101–121

#ifdef MAPPER_USE_QTSINGLEAPPLICATION

void resetActivationWindow(QtSingleApplication& app)
{
	const auto* const old_window = app.activationWindow();
	app.setActivationWindow(nullptr);
	
	if (!QCoreApplication::closingDown())
	{
		const auto top_level_widgets = QApplication::topLevelWidgets();
		for (auto* widget : top_level_widgets)
		{	
			auto* const new_window = qobject_cast<MainWindow*>(widget);
			if (new_window && new_window != old_window)
			{
				app.setActivationWindow(new_window);
				QObject::connect(new_window, &QObject::destroyed, &app, [&app]() { resetActivationWindow(app); });
				QObject::connect(&app, &QtSingleApplication::messageReceived, new_window, &MainWindow::openPathLater);
				break;
			}
		}
	}
}

#endif