Doesn't work fully on Gnome 3.34

[inducer]

As far as I can tell, the pop-up menu does not appear. Some keyboard shortcuts do appear to work, such as Super-plus and Super-minus. I'd be happy to help debug/fix, but I'm a bit lost where to start. How can I print something in the code and observe the result?

[timbertson]

Thanks for offering to help, I haven't upgraded to 3.34 yet.

To print something, there's a p(string) function in logging.ts, it should be imported in most modules already.

To see logs, I use journalctl --user -f | grep gnome-shell (or you can grep for slinger if you just want those logs)

[inducer]

Thanks! Here's what I've found: The issue seems to stem from calls to

Sys.Clutter.grab_pointer(backgroundActor)

which doesn't appear to be available anymore:

Sep 14 23:14:22 bolt gnome-shell[2731]: [slinger]:Error: TypeError: Sys.Clutter.grab_pointer is not a function

Following this MR in Gnome Shell, I tried to use the device manager approach introduced there. Unfortunately, it seems

this._keyboardDevice = dm.get_core_device(Clutter.InputDeviceType.KEYBOARD_DEVICE);

can and will return null at random points, often after suspend/resume, for reasons I don't understand, and the API docs (not linkable to individual functions of course, that'd be too nice) don't particularly help.

For now, I've resorted to simply commenting out the grab/ungrab pair, and things seem to work well.

[inducer]

OK, I lied. Commenting out the grab does not work, events don't reach the menu. I had simply forgotten to compile. I've complained about the occasional null values here:

https://gitlab.gnome.org/GNOME/mutter/issues/799

[inducer]

#20 has a draft PR with some TODOs.