[Wayland-bugs] [Bug 87134] No capability detection events

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87134

--- Comment #4 from Peter Hutterer <peter.hutterer at who-t.net> ---
well, yes, we'd know that the touchpad could to abs coordinates right from the
start. so technically we could set that capability bit and never send touch
events unless the touchpad changes to the handwriting mode.
feels wrong though, given the percentage of users who'll ever do that.

I thought about limiting it to single-finger and absolute motion (that's what I
did in the Xorg hack to test it) but then you lack touch begin/end events so
all your lines are connected. So I do think we need touch events, it's mostly a
question of whether we send them through wl_touch or a custom side-channel.

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