2 finger swipe

[Sandvich]

Is your feature request related to a problem? Please describe. Hi! I've been loving Fusuma so far, but the one thing I'm really missing is two-finger swipes to go back and forwards a page, like on MacOS. Is this something that's possible?

I've already put it in my config, but sadly it doesn't seem to recognise the gesture. I have it mapped to alt+Left/alt+Right, which is already a thing in KDE

Additional context Just in case this is already enabled and I've just made a mistake, here's my config:

swipe:
  2:
    left:
      command: 'xdotool key alt+Left'
    right:
      command: 'xdotool key alt+Right'
  3:
    left:
      workspace: 'next'
    right:
      workspace: 'prev'
    up:
      command: 'xdotool key Control_L+F10'
pinch:
  2:
    in:
      command: 'xdotool keydown ctrl click 4 keyup ctrl' # Zoom in
    out:
      command: 'xdotool keydown ctrl click 5 keyup ctrl' # Zoom out

threshold:
  swipe: 1
  pinch: 1

interval:
  swipe: 1
  pinch: 1

[l0f4r0]

What is the ouput of fusuma while you're swiping? Is each swipe recognized but action is not triggered? Or don't you see anything in output?

Is another gesture working (swipe UP, pinch IN/OUT)?

[Sandvich]

No output with 2 finger swipe. Pinching in and out both work, although neither is particularly responsive. Swiping up and down are already handled by KDE - maybe whatever handles the two-finger swipe to scroll is consuming the left and right swipes before they get to fusuma?

[l0f4r0]

To make sure you could temporarily start by assigning other shortcuts (not already managed by KDE or any other software) for your 2 finger swipes?

[Sandvich]

What do you mean by other shortcuts? Like map two finger left to ctrl+c and two finger right to ctrl+v or something similar? I tried turning off horizontal scrolling in KDE, but that didn't help.

[iberianpig]

The libinput debug-events have 4-finger and 3-finger swipe events, such as the one below.

 -event17  GESTURE_SWIPE_UPDATE +333.28s 3 -11.36/ 4.06 (-30.62/10.94 unaccelerated)
 event17  GESTURE_SWIPE_UPDATE +333.28s 3 -10.55/ 3.65 (-28.43/ 9.84 unaccelerated)
 event17  GESTURE_SWIPE_UPDATE +333.29s 3 -8.11/ 3.25 (-21.87/ 8.75 unaccelerated)
 event17  GESTURE_SWIPE_UPDATE +333.30s 3 -6.90/ 2.43 (-18.59/ 6.56 unaccelerated)
 event17  GESTURE_SWIPE_UPDATE +333.31s 3 -4.87/ 1.62 (-13.12/ 4.37 unaccelerated)
 event17  GESTURE_SWIPE_UPDATE +333.31s 3 -3.65/ 1.22 (-9.84/ 3.28 unaccelerated)
 event17  GESTURE_SWIPE_END +333.35s    3
 event17  GESTURE_SWIPE_BEGIN +333.65s  4
 event17  GESTURE_SWIPE_UPDATE +333.65s 4 11.87/-2.43 (31.99/-6.56 unaccelerated)
 event17  GESTURE_SWIPE_UPDATE +333.66s 4 12.78/-3.65 (34.45/-9.84 unaccelerated)
 event17  GESTURE_SWIPE_UPDATE +333.67s 4 11.87/-3.65 (31.99/-9.84 unaccelerated)
 event17  GESTURE_SWIPE_UPDATE +333.68s 4 12.17/-4.26 (32.81/-11.48 unaccelerated)

However, it does not send a two-finger swipe event because it is recognized as a scroll. That's why Fusuma doesn't implement a two-finger swipe.

[Sandvich]

Thanks @iberianpig. Does this mean that it's impossible to add with the current setup? Or is there a way to map horizontal scroll perhaps?

[iberianpig]

It's mean that Fusuma cannot detect 2 fingers swipe.

If someone creates a plugin to parse the scroll, it will be recognizable as swipe.