genode/repos/gems/sculpt/leitzentrale
Norman Feske 8e9cabf819 sculpt_manager: touch-screen compatibility
This patch makes Sculpt's leitzentrale GUI able to respond to touch events. It
formerly assumed that click/clack events are always preceded by hover reports
that identify the clicked-on widgets. For touch events, however, the most
up-to-date hover information referred to the previous click because there is no
motion without touching. So the GUI tended to identify the wrong widgets as
click targets.

The patch solved this problem by testing the freshness of the hover information
at the time of the click. If the hover information is older than the click, the
action is deferred until up-to-date hover information becomes available.

Fixes #4398
2022-02-15 10:16:51 +01:00
..
default sculpt_manager: touch-screen compatibility 2022-02-15 10:16:51 +01:00