Expose the middle button emulation on software buttons as proper config
option. When enabled, remove the middle button software button area.
https://bugs.freedesktop.org/show_bug.cgi?id=96663
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Middle button interaction is most commonly to paste and it is a single-event
interaction (button press). We provided middle button in software button mode
by emulating it with a two-finger press with L+R down at the same time. This
is also what many touchpads are spectacularly bad at, it is very common to
detect the physical button down event before the second finger registers,
resulting in left or right clicks where a middle button should be triggered.
Unless the fingers are resting on the touchpad for at least one scanout, the
success rate for middle button emulation is only at 70% or so.
This patch adds a 25%-width middle button area between the left and the right
software button, everything else stays the same. To avoid immediate breakage,
the middle button emulation remains but may be removed in the future.
The doc is updated to only refer to the middle button area now.
https://bugs.freedesktop.org/show_bug.cgi?id=94755
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
A common use-case for clickfinger is to use the index finger for moving the
pointer, then triggering the click with a thumb. If the index finger isn't
lifted before the click this counted as two-finger click.
To avoid this, check the distance between touches on the touchpad (on
touchpads reporting resolution values anyway). If the touches are too far
apart, don't count them together (or specifically only count those close
enough together as multi-finger).
The touch area is uneven, it's wider than high. Spreading fingers horizontally
is more common and this also makes it easier to rule out thumbs which tend to
be well below the fingers.
http://bugs.freedesktop.org/show_bug.cgi?id=90526
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
This can happen a lot easier on the new Lenovo series, so document that this
is intentional behavior.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Allow switching between softbuttons and clickfinger on any mt-capable
clickpad.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
[hdegoede@redhat.com] Keep top softbuttons working when enabling clickfinger
[hdegoede@redhat.com] Simply touchpad click method switching
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This moves some information from the wiki into the main generated doxygen
documenation. It is fairly rought but includes examples for inline and
stand-alone diagrams, linking to external HTML pages, etc.
Among other things, it allows for better cross-referencing into the
main doxygen contents and thus for overall shorter documentation.
Signed-off-by: Jon A. Cruz <jonc@osg.samsung.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
