workspace animation doesn't happen when letting go of finger during 3 finger vertical swipe

[Eddio0141]

With 3 fingers on the touchpad and moving it up / down, letting go of the touchpad completely finishes the animation as expected, but if I remove some fingers (but not all), it will snap back to the original workspace without any animation no matter how far I've swiped it
This doesn't happen with horizontal movement

Video_2025-02-08_20-00-02.mp4

System Information

• niri version: niri stable v25.01 (commit e05bc26)
• Distro: NixOS
• GPU 1: AMD Radeon RX 7700S [Discrete]
• GPU 2: GPU 2: AMD Radeon 780M [Integrated]
• CPU: AMD Ryzen 7 7840HS

[YaLTeR]

Yeah so this is called gesture cancelling. When you lift a finger like this, libinput indicates that the gesture got cancelled rather than completed, and should ideally be undone.

I didn't do the cancelling for the horizontal gesture because it would be Complicated to roll it back correctly in all cases. But tbh it's debatable whether cancelling is needed in the vertical case. Maybe we should just ignore it? I think GNOME ignores it at least for the workspace switch

[Eddio0141]

Ah ok not really a bug then, I thought its a bug since the inconsistent behaviour with horizontal and vertical, and the animation not happening
I've only found out this exists by accident, and not sure if I'd be using it either