Check the surface input region when sending input events
Check the surface input region when sending input events

Our homegrown solution ('MOUSE_REGION') should be fased out in
favour of the core wl_surface::input_region mechanism.

sletta/lipstick,sletta/lipstick,pvuorela/lipstick,pvuorela/lipstick,pvuorela/lipstick,giucam/lipstick,sletta/lipstick,giucam/lipstick,giucam/lipstick