Qt/HostInterface: Track main window pointer

src/duckstation-qt/mainwindow.cpp

@@ -24,6 +24,8 @@ static constexpr char DISC_IMAGE_FILTER[] =
 
 MainWindow::MainWindow(QtHostInterface* host_interface) : QMainWindow(nullptr), m_host_interface(host_interface)
 {
+  m_host_interface->setMainWindow(this);
+
   m_ui.setupUi(this);
   setupAdditionalUi();
   connectSignals();
@@ -34,6 +36,7 @@ MainWindow::MainWindow(QtHostInterface* host_interface) : QMainWindow(nullptr),
 MainWindow::~MainWindow()
 {
   Assert(!m_display_widget);
+  m_host_interface->setMainWindow(nullptr);
 }
 
 void MainWindow::reportError(const QString& message)

src/duckstation-qt/qthostinterface.cpp

@@ -10,6 +10,7 @@
 #include "core/system.h"
 #include "frontend-common/sdl_audio_stream.h"
 #include "frontend-common/sdl_controller_interface.h"
+#include "mainwindow.h"
 #include "opengldisplaywidget.h"
 #include "qtsettingsinterface.h"
 #include "qtutils.h"
@@ -147,6 +148,12 @@ void QtHostInterface::refreshGameList(bool invalidate_cache /* = false */, bool
   emit gameListRefreshed();
 }
 
+void QtHostInterface::setMainWindow(MainWindow* window)
+{
+  DebugAssert((!m_main_window && window) || (m_main_window && !window));
+  m_main_window = window;
+}
+
 QtDisplayWidget* QtHostInterface::createDisplayWidget()
 {
   Assert(!m_display_widget);

src/duckstation-qt/qthostinterface.h

@@ -23,6 +23,7 @@ class QTimer;
 
 class GameList;
 
+class MainWindow;
 class QtDisplayWidget;
 
 Q_DECLARE_METATYPE(SystemBootParameters);
@@ -44,14 +45,16 @@ public:
   void putSettingValue(const QString& name, const QVariant& value);
   void removeSettingValue(const QString& name);
 
-  const GameList* getGameList() const { return m_game_list.get(); }
+  ALWAYS_INLINE const GameList* getGameList() const { return m_game_list.get(); }
-  GameList* getGameList() { return m_game_list.get(); }
+  ALWAYS_INLINE GameList* getGameList() { return m_game_list.get(); }
   void refreshGameList(bool invalidate_cache = false, bool invalidate_database = false);
 
-  const HotkeyInfoList& getHotkeyInfoList() const { return GetHotkeyInfoList(); }
+  ALWAYS_INLINE const HotkeyInfoList& getHotkeyInfoList() const { return GetHotkeyInfoList(); }
 
-  bool isOnWorkerThread() const { return QThread::currentThread() == m_worker_thread; }
+  ALWAYS_INLINE bool isOnWorkerThread() const { return QThread::currentThread() == m_worker_thread; }
 
+  ALWAYS_INLINE MainWindow* getMainWindow() const { return m_main_window; }
+  void setMainWindow(MainWindow* window);
   QtDisplayWidget* createDisplayWidget();
 
   void populateSaveStateMenus(const char* game_code, QMenu* load_menu, QMenu* save_menu);
@@ -156,6 +159,7 @@ private:
   QSettings m_qsettings;
   std::mutex m_qsettings_mutex;
 
+  MainWindow* m_main_window = nullptr;
   QtDisplayWidget* m_display_widget = nullptr;
   QThread* m_original_thread = nullptr;
   Thread* m_worker_thread = nullptr;