Re-emit ignored events from grabbed devices to uinput devices

[ajanon]

Ignored events (i.e. events other than key presses for now) are re-emitted to the uinput devices. This allows grabbing mouses and other pointer devices while still allowing the cursors to work.

In some cases, events are not re-emitted at all when the uinput device handles keys, relative axes and switches. By sending switch events to a separate uinput device just for switches and another one for keys and relative axes, we can re-emit keys, pointer events, and switches events properly.

[ajanon]

@EdenQwQ #147 did not work for you at the time. This PR builds on @Shinyzenith's work and should allow mouse movement to work (at least it does on my end). Would you mind taking a look to tell me if it works for you now?

[Shinyzenith]

This pr works perfectly for me!

[Shinyzenith]

Closes https://github.com/waycrate/swhkd/issues/131

[ajanon]

Great! Do you want other team members to test this further?

[Shinyzenith]

Great! Do you want other team members to test this further?

Would be nice if eden took a look too. I think eden is a little busy with university so if they don't respond, we shall go ahead with the merge.

[Shinyzenith]

Hi @ajanon, really sorry to bother you but would you mind rebasing this onto main branch?

[ajanon]

@Shinyzenith Here you go!

[Shinyzenith]

Thank you!

[Shinyzenith]

@ajanon Please go ahead and merge this if convenient ❤️

[ajanon]

I just rebased this onto main, and I will merge it once CI finishes.

I also removed Eden from the reviewers as they seem busy.

[ajanon]

@Shinyzenith If you could just approve this again so that I can merge it, it would be great!

[Shinyzenith]

Pr seems great! Go for the merge. Thank you for the patch ❤️

[ajanon]

I cannot merge on my side, the button is greyed out :disappointed:

[Shinyzenith]

How about now?

[ajanon]

Perfect! :)

[Shinyzenith]

Reminder to self: push to mirror