Povilas from linked article here. The design of how libinput handles gestures is exactly like you describe - the application will get a Start event when a gesture is identified, an Update event when finger position change and an End event when the gesture completes. This will allow to implement the macOS gestures in the end. There are more complex details of course, but the basic point stands.
Hey thanks for all of your work on libinput. A lot of us Mac refugees are really happy to see how much better things are with the linux userspace now. You're making a lot of people very happy.
Crystal-clear graphics with Wayland, great new hardware available from the two big linux-friendly laptop makers (Lenovo+Dell), great touchpad software support with libinput... it's a great time to be on desktop linux!
I think you should thank Peter Hutterer for his contributions to libinput. I'm just a random developer who loves complex problems and free software and was also interested in trying to improve Linux touchpad support :-)
