libinput/doc
Peter Hutterer 1d9e307e2b touchpad: implement support for three-finger drag
Exposed via new configuration option this enables 3 and 4 finger
dragging on touchpads. When enabled a 3/4 finger swipe
gesture is actually a button down + motion + button up sequence.

If tapping is disabled the drag starts immediately, if tapping is
enabled the drag starts after the tap timeout/motion so we can distinguish
between a tap and a drag.

When fingers are released:
- if two fingers remain -> keep dragging
- if one finger remains -> release drag, switch to pointer motion

When 3/4 fingers are set down immediately after releasing all fingers
the drag continues, similar to the tap drag lock feature. This drag lock
is not currently configurable.

This matches the macos behavior for the same feature.

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1042>
2025-02-18 06:44:01 +00:00
..
api doc/api: set HAVE_DOT to YES 2023-01-17 10:54:10 +10:00
user touchpad: implement support for three-finger drag 2025-02-18 06:44:01 +00:00
button-debouncing-state-machine.svg Fix pre-commit errors 2024-09-03 09:51:41 +02:00
button-debouncing-wave-diagram.txt evdev: add new debouncing code 2017-11-20 09:55:05 +10:00
middle-button-emulation.svg evdev: add support for middle button emulation 2015-04-17 12:50:03 +10:00
touchpad-edge-scrolling-state-machine.svg touchpad: Add edge-scrolling support 2014-11-25 17:02:30 +10:00
touchpad-gestures-state-machine.svg doc: fix end-of-file in the state machine SVG 2024-02-19 12:21:16 +10:00
touchpad-softbutton-state-machine.svg touchpad: Route top softbuttons through the trackstick if we've one 2014-09-19 08:20:00 +10:00
touchpad-tap-state-machine.svg Fix pre-commit errors 2024-09-03 09:51:41 +02:00