Enable / Disable game specific functions if no game is loaded

- Disable Save, Settings, Stats and Notes if game is none

fixes #1854

changelog.md

@@ -14,6 +14,7 @@ Saves from 5.x are not compatible with 6.0.
 * **[Mission Generator]** Fixed incorrect radio specification for the AN/ARC-222.
 * **[Mission Generator]** Fixed mission scripting error when using a dedicated server.
 * **[Mission Generator]** Fixed an issue where empty convoys lead to an index error when a point capture made a pending transfer of units not completable anymore.
+* **[UI]** Enable / Disable the settings, save and stats actions if no game is loaded to prevent an error as these functions can only be used on a valid game.
 
 # 5.0.0
 

qt_ui/windows/QLiberationWindow.py

@@ -172,6 +172,19 @@ class QLiberationWindow(QMainWindow):
         self.openNotesAction.setIcon(CONST.ICONS["Notes"])
         self.openNotesAction.triggered.connect(self.showNotesDialog)
 
+        self.enable_game_actions(False)
+
+    def enable_game_actions(self, enabled: bool):
+        self.openSettingsAction.setVisible(enabled)
+        self.openStatsAction.setVisible(enabled)
+        self.openNotesAction.setVisible(enabled)
+
+        # Also Disable SaveAction to prevent Keyboard Shortcut
+        self.saveGameAction.setEnabled(enabled)
+        self.saveGameAction.setVisible(enabled)
+        self.saveAsAction.setEnabled(enabled)
+        self.saveAsAction.setVisible(enabled)
+
     def initToolbar(self):
         self.tool_bar = self.addToolBar("File")
         self.tool_bar.addAction(self.newGameAction)
@@ -331,6 +344,8 @@ class QLiberationWindow(QMainWindow):
                 QMessageBox.Ok,
             )
             GameUpdateSignal.get_instance().updateGame(None)
+        finally:
+            self.enable_game_actions(self.game is not None)
 
     def showAboutDialog(self):
         text = (