Qt: Stub saving resume state when powering off

src/duckstation-qt/mainwindow.cpp

@@ -271,7 +271,7 @@ void MainWindow::connectSignals()
           &MainWindow::onChangeDiscFromGameListActionTriggered);
   connect(m_ui.actionAddGameDirectory, &QAction::triggered,
           [this]() { getSettingsDialog()->getGameListSettingsWidget()->addSearchDirectory(this); });
-  connect(m_ui.actionPowerOff, &QAction::triggered, m_host_interface, &QtHostInterface::powerOffSystem);
+  connect(m_ui.actionPowerOff, &QAction::triggered, [this]() { m_host_interface->powerOffSystem(true, false); });
   connect(m_ui.actionReset, &QAction::triggered, m_host_interface, &QtHostInterface::resetSystem);
   connect(m_ui.actionPause, &QAction::toggled, m_host_interface, &QtHostInterface::pauseSystem);
   connect(m_ui.actionLoadState, &QAction::triggered, this, [this]() { m_ui.menuLoadState->exec(QCursor::pos()); });

src/duckstation-qt/qthostinterface.cpp

@@ -383,21 +383,23 @@ void QtHostInterface::addButtonToInputMap(const QString& binding, InputButtonHan
   }
 }
 
-void QtHostInterface::powerOffSystem()
+void QtHostInterface::powerOffSystem(bool save_resume_state /* = false */, bool block_until_done /* = false */)
 {
   if (!isOnWorkerThread())
   {
-    QMetaObject::invokeMethod(this, "powerOffSystem", Qt::QueuedConnection);
+    QMetaObject::invokeMethod(this, "powerOffSystem",
+                              block_until_done ? Qt::BlockingQueuedConnection : Qt::QueuedConnection,
+                              Q_ARG(bool, save_resume_state), Q_ARG(bool, block_until_done));
     return;
   }
 
   if (!m_system)
-  {
-    Log_ErrorPrintf("powerOffSystem() called without system");
     return;
-  }
 
-  m_system.reset();
+  if (save_resume_state)
+    Log_InfoPrintf("TODO: Save resume state");
+
+  DestroySystem();
   m_audio_stream->PauseOutput(true);
   m_display_window->destroyDeviceContext();
 

src/duckstation-qt/qthostinterface.h

@@ -74,7 +74,7 @@ Q_SIGNALS:
 
 public Q_SLOTS:
   void applySettings();
-  void powerOffSystem();
+  void powerOffSystem(bool save_resume_state = false, bool block_until_done = false);
   void resetSystem();
   void pauseSystem(bool paused);
   void changeDisc(QString new_disc_filename);