Trackpad moves cursor instead of scrolling the window

[shanesmith]

Previously, scrolling with the trackpad would scroll the whole window, but since snapshot 20231110.205939 the cursor is now moved instead. The window does scroll once the cursor reaches the edge.

[edgarcosta]

Does anyone have a workaround for this? For example, a temporary fix could be to force the cursor to jump to the end of the window.

[mmerickel]

A couple more details as I'm experiencing this while converting from vim+macvim to nvim+vimr:

1. my friend who uses a mouse with scroll wheel doesn't have the issue, it does seem specific to the trackpad input
2. with the default mouse support from a base neovim install, scrolling works correctly in a terminal shell (using iTerm2) - it's just vimr where I see this issue of the trackpad scrolling the cursor

[edgarcosta]

I can confirm that I do not have scroll issues with neovim in iterm2

[shanesmith]

I'm fairly certain this issue is caused by #1015, specifically this update. If you expand that diff upwards you'll notice that scrolling by trackpad is indeed handled differently.

Not going to pretend I understand exactly what's going on, but in that diff I see that the code went from a scroll() to a winSetCursor(), I wonder why. 🤔

[georgeharker]

We had to mode to a different API. I’ll take a look and see if there’s a way to do the smooth scroll without cursor.