Éric Brunet authored Sep 30, 2014 and Peter Hutterer committed Dec 17, 2014

When not in_proximity, we don't really trust data, even though a valuator
sent just before a in_proximity event might actually be important. The
present code for EVDEV_RELATIVE_MODE throws away all data if not
in_proximity, which is a little bit too much. This patch allows for
relative values to be calculated and old_vals to be updated even if not
in_proximity, but will prevent evdev to sending (presumably) wrong
information to the X server. But at least, old_vals will be correctly
filled when the device comes into proximity again.

Signed-off-by: Éric Brunet <Eric.Brunet@lps.ens.fr>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>