The internal state of the input handlers need updating too. This was not possible
in the past due to the one way communication from the input handlers (that are
potentially loaded as interface-less generic plugins), but using our new private
QInputDeviceManager in QtGui we can now easily implement "talking back" from QtGui
to the input handlers, regardless of them being plugins or compiled in.
The rest of setPos() is in place already for eglfs.
linuxfb will be handled in follow-up patches.
Task-number: QTBUG-44856
Change-Id: Id72fdb8b1ea176ddfe082e466e7a538a2a98a005
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
Reviewed-by: Andy Nichols <andy.nichols@theqtcompany.com>