Warn before quitting with ⌘Q

[conath]

Describe the issue
I am running a macOS VM and I press the keyboard shortcut ⌘ Q to quit an application in the VM, or ⌘ W to close a window. However, the shortcut is not passed into the VM (even when the mouse is captured). Instead, UTM immediately exits. This is very annoying because you lose all unsaved data and pressing ⌘Q/W is extremely common for macOS users.

Configuration

• UTM Version: latest
• OS Version: latest
• Intel or Apple Silicon? Intel

Suggestion

When ⌘ Q/W is encountered while a VM is still running, an alert should appear with the option to pause the VM, Exit and Cancel (continuing to run the VM as if ⌘ Q/W wasn't pressed).

[osy]

@conath any idea how to do this? I know Chrome has something where you have to confirm Cmd+Q or hold it.

EDIT: Seems like I have to replace the whole menu and re-create the other items.

[conath]

This may help: https://developer.apple.com/documentation/appkit/nsapplicationdelegate/1428642-applicationshouldterminate

[osy]

This also seems relevant: https://stackoverflow.com/questions/64993265/swiftui-and-appkit-use-close-dialog-to-ask-if-the-app-is-allowed-to-quit

[StupidRepo]

@osy I know Chrome has something where you have to confirm Cmd+Q or hold it.

It's actually Opera not Chrome.

[conath]

Chrome does have it, it's an option in the "Chrome" menu ("Warn Before Quitting").

[osy]

Reading more on this, seems like Key Equivalent Handling (menu/button shortcuts) are always handled before the event is sent to the key window -> first responder -> my view. So Cmd+Q, Cmd+W, Cmd+N for example won't be seen by the app. The way around it is to use https://developer.apple.com/documentation/appkit/nsevent/1534971-addlocalmonitorforeventsmatching which will require a bit of refactoring on the current window controller.

I'm thinking of the following rules:

1. When mouse is captured, always send all keys to VM except the release key combo.
2. When mouse is not captured, throw alert when Cmd+Q or Cmd+W prompting the user to either pause the VM (if available) or stop it.
3. Any other Key Equivalents will still be handled when not captured. This makes us a good macOS citizen.

[Oreilles]

@osy I know Chrome has something where you have to confirm Cmd+Q or hold it.

It's actually Opera not Chrome.

Chrome has it too, and it's beyond annoying - but can be disable fortunately. It should just show a confirmation window with the option to not ask ever again, like literally every mac app.

[JayBrown]

There's also this: https://commandqapp.com/

[Aem1024]

Edge also has it, it seems like most chromium browsers do