Markus Stange [:mstange] Reporter
	Description • 10 years ago

When we calculate the new displayport on the APZ side, we consult the current scrolling velocity. On Mac, flings are driven by events from the system and not by our own FlingAnimation, so it's possible that we're not updating our fling velocity properly from those events, which would cause us to calculate a displayport that we'll already have scrolled past once it's finished painting.

Maybe we're already doing this correctly, but we should double-check.

	Kartikaya Gupta (email:kats@mozilla.staktrace.com)
	Comment 1 • 9 years ago

Much like bug 1098430 this is dependent on using the pan gesture events.

	Kartikaya Gupta (email:kats@mozilla.staktrace.com)
	Comment 2 • 8 years ago

We're already doing this: https://dxr.mozilla.org/mozilla-central/rev/0771c5eab32f0cee4f7d12bc382298a81e0eabb2/gfx/layers/apz/src/AsyncPanZoomController.cpp#1906