Make some notification noise when the application terminates without request

gui.py

@@ -519,7 +519,7 @@ class LoginForm:
     async def ask_login(self) -> LoginData:
         self.update(_("gui", "login", "required"), None)
         # ensure the window isn't hidden into tray when this runs
-        self._manager.tray.restore()
+        self._manager.grab_attention(sound=False)
         while True:
             self._manager.print(_("gui", "login", "request"))
             await self.wait_for_login_press()
@@ -546,7 +546,7 @@ class LoginForm:
     async def ask_enter_code(self, user_code: str) -> None:
         self.update(_("gui", "login", "required"), None)
         # ensure the window isn't hidden into tray when this runs
-        self._manager.tray.restore()
+        self._manager.grab_attention(sound=False)
         self._manager.print(_("gui", "login", "request"))
         await self.wait_for_login_press()
         self._manager.print(f"Enter this code on the Twitch's device activation page: {user_code}")
@@ -2108,6 +2108,11 @@ class GUIManager:
     def save(self, *, force: bool = False) -> None:
         self._cache.save(force=force)
 
+    def grab_attention(self, *, sound: bool = True):
+        self.tray.restore()
+        self._root.focus_force()
+        self._root.bell()
+
     def set_games(self, games: abc.Iterable[Game]) -> None:
         self.settings.set_games(games)
 

main.py

@@ -172,8 +172,11 @@ if __name__ == "__main__":
             client.print(_("gui", "status", "exiting"))
             await client.shutdown()
         if not client.gui.close_requested:
+            # user didn't request the closure
             client.print(_("status", "terminated"))
             client.gui.status.update(_("gui", "status", "terminated"))
+            # notify the user about the closure
+            client.gui.grab_attention(sound=True)
         await client.gui.wait_until_closed()
         # save the application state
         # NOTE: we have to do it after wait_until_closed,