On Thu, Dec 23, 2021 at 10:30:50AM -0500, Tom Horsley wrote: > Here is a bit of shell script which makes it possible to use my > Kensington Expert Wireless Trackball Mouse under X11: > > xinput --set-button-map "$nm" 1 8 3 4 5 6 7 2 > xinput --set-prop --type=int --format=8 "$nm" \ > 'libinput Drag Lock Buttons' 2 1 > > The trackball is large, it sits in one place, and unless I > can make one of the buttons be a drag lock button, it is > almost impossible to use, needing to cross over both hands > or play twister with my fingers :-). (If I can use drag > lock, it is the best mouse I've ever had). > > Is there any way at all to do this in wayland? I recently > tried wayland on an ubuntu 20.04 system, and could not find > anything like it. > > I'd be happy to buy a couple of trackballs for wayland developers > if they'd promise to support drag lock :-). > > Alternatively, perhaps you could tell me where such support > would best be implemented and I could see about implementing > it myself. Shouldn't take me more than a year to come up to speed > on the software :-).
I'd argue that the best place to implement this is in the compositor [1] since it allows for better discoverability and more flexible configuration - it is an accessibility interface after all. But right now, it isn't (afaict) currently implemented in any compositor. Cheers, Peter [1] hence why in X it's implemented in the driver which is the closest thing to the compositor for these use-cases
