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The direction lock was intended to avoid erroneous horizontal scroll events when scrolling vertically (and vice versa). Some testing on my touchpad here shows that it is too easy to accidentally lock the direction when no lock is intended (e.g. moving around an image). And quite hard to figure out what a pure vertical gesture is. I get movements from 90 degrees to 70 degrees for something my brain would consider vertical scrolling. Depending on the hand position, the fingers actually perform a slight curve, not a straight line. Hence - drop the direction lock, but increase the threshold a little. It doesn't totally avoid horizontal scroll events but keeps them minimal. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Hans de Goede <hdegoede@redhat.com> |
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libinput libinput is a library that handles input devices for display servers and other applications that need to directly deal with input devices. It provides device detection, device handling, input device event processing and abstraction so minimize the amount of custom input code the user of libinput need to provide the common set of functionality that users expect. Input event processing includes scaling touch coordinates, generating pointer events from touchpads, pointer acceleration, etc. libinput originates from weston, the Wayland reference compositor. The source code of libinput can be found at: http://cgit.freedesktop.org/wayland/libinput For more information, visit: http://www.freedesktop.org/wiki/Software/libinput/