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Firefox scrolling too fast/sensitive

See original GitHub issue

We have a web application using pixi-viewport, but for users using Firefox, the zoom scrolling is much too fast compared to Chrome.

How to reproduce

Open https://davidfig.github.io/pixi-viewport/ in Firefox (tested in 74.0.1, but observed with other versions).
Scroll in and out and notice how very fast/sensitive it is.

Compare this to Chrome (tested in 80.0.3987.149, but observed in others). Chrome’s scrolling is much more controlled and natural.

Issue Analytics

State:
Created 3 years ago
Comments:5 (2 by maintainers)

Top GitHub Comments

1reaction

mcdenhoedcommented, Apr 7, 2020

Anecdotally, using Chrome on macOS 10.14 and scrolling my mouse one tick shows a deltaMode of 0 and deltaY of 4.

Meanwhile, using Firefox and scrolling one tick shows a deltaMode of 1 and a deltaY of 1 .

I noticed this line in the Wheel Plugin:

https://github.com/davidfig/pixi-viewport/blob/f5a0db698af9c35a9e3789d5d3440641c6e072dd/src/plugins/wheel.js#L89

Perhaps the issue here is simply that PIXI Viewport’s fudge factor accounting for Line Scrolling is too sensitive? Based on my numbers above, changing that value to 4 should yield a more uniform experience (or better yet, maybe that should be a plugin option).

0reactions

johnthagencommented, Apr 20, 2020

Fixed in #216

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