Qt: Fix focus issues with LoadSaveState

CHANGES

@@ -116,6 +116,7 @@ Bugfixes:
  - Qt: Fix jumbled background when paused
  - Qt: Fix FPS counter on Windows
  - GB, GBA Savedata: Fix leaks when loading masked save (fixes mgba.io/i/1197)
+ - Qt: Fix focus issues with load/save state overlay
 Misc:
  - mGUI: Add SGB border configuration option
  - mGUI: Add support for different settings types

src/platform/qt/LoadSaveState.cpp

@@ -27,8 +27,9 @@ LoadSaveState::LoadSaveState(std::shared_ptr<CoreController> controller, QWidget
 	, m_mode(LoadSave::LOAD)
 	, m_currentFocus(controller->stateSlot() - 1)
 {
-	setAttribute(Qt::WA_TranslucentBackground);
 	m_ui.setupUi(this);
+	m_ui.lsLabel->setFocusProxy(this);
+	setFocusPolicy(Qt::ClickFocus);
 
 	m_slots[0] = m_ui.state1;
 	m_slots[1] = m_ui.state2;
@@ -56,6 +57,7 @@ LoadSaveState::LoadSaveState(std::shared_ptr<CoreController> controller, QWidget
 	if (m_currentFocus < 0) {
 		m_currentFocus = 0;
 	}
+	m_slots[m_currentFocus]->setFocus();
 
 	QAction* escape = new QAction(this);
 	connect(escape, &QAction::triggered, this, &QWidget::close);
@@ -242,6 +244,10 @@ void LoadSaveState::showEvent(QShowEvent* event) {
 	QWidget::showEvent(event);
 }
 
+void LoadSaveState::focusInEvent(QFocusEvent*) {
+	m_slots[m_currentFocus]->setFocus();
+}
+
 void LoadSaveState::paintEvent(QPaintEvent*) {
 	QPainter painter(this);
 	QRect full(QPoint(), size());

src/platform/qt/LoadSaveState.h

@@ -41,6 +41,7 @@ protected:
 	virtual void closeEvent(QCloseEvent*) override;
 	virtual void showEvent(QShowEvent*) override;
 	virtual void paintEvent(QPaintEvent*) override;
+	virtual void focusInEvent(QFocusEvent*) override;
 
 private:
 	void loadState(int slot);