1 files changed, 21 insertions, 0 deletions
diff --git a/src/yuzu/main.cpp b/src/yuzu/main.cpp
index 2d82df7394..757d42a3ae 100644
--- a/src/yuzu/main.cpp
+++ b/src/yuzu/main.cpp
@@ -675,6 +675,24 @@ void GMainWindow::RestoreUIState() {
     Debugger::ToggleConsole();
 }
 
+void GMainWindow::OnAppFocusStateChanged(Qt::ApplicationState state) {
+    if (!UISettings::values.pause_when_in_background) {
+        return;
+    }
+    if (state != Qt::ApplicationHidden && state != Qt::ApplicationInactive &&
+        state != Qt::ApplicationActive) {
+        LOG_DEBUG(Frontend, "ApplicationState unusual flag: {} ", state);
+    }
+    if (ui.action_Pause->isEnabled() &&
+        (state & (Qt::ApplicationHidden | Qt::ApplicationInactive))) {
+        auto_paused = true;
+        OnPauseGame();
+    } else if (ui.action_Start->isEnabled() && auto_paused && state == Qt::ApplicationActive) {
+        auto_paused = false;
+        OnStartGame();
+    }
+}
+
 void GMainWindow::ConnectWidgetEvents() {
     connect(game_list, &GameList::GameChosen, this, &GMainWindow::OnGameListLoadFile);
     connect(game_list, &GameList::OpenDirectory, this, &GMainWindow::OnGameListOpenDirectory);
@@ -2311,6 +2329,9 @@ int main(int argc, char* argv[]) {
     // After settings have been loaded by GMainWindow, apply the filter
     main_window.show();
 
+    QObject::connect(&app, &QGuiApplication::applicationStateChanged, &main_window,
+                     &GMainWindow::OnAppFocusStateChanged);
+
     Settings::LogSettings();
 
     int result = app.exec();