Closed Bug 1211610 (async-scrollbar-drag) Opened 4 years ago Closed 3 years ago
[Meta] Enable async scrolling via scrollbar dragging
59 bytes, text/x-review-board-request
We're splitting bug 1199885 into several parts. This will track all the work required to get it turn on by default.
Depends on: 1249162
Depends on: 1253357
Depends on: 1264802
Depends on: 1265825
No longer depends on: 1265825
Depends on: 1325366
No longer depends on: 1325366
Depends on: 1326290
Depends on: 1328658
Depends on: 1331693
Do you guys think it's worth filing a new parent bug to this one about webcompat.com issue #4664? Basically, when dragging the scrollbar quickly enough, there are blank content-areas for the given URL, but it doesn't result in breakage (it seems to basically just be checkerboarding). It only seems to happen when dragging the scrollbar, and it doesn't happen when apz.drag.enabled is off. I'm just not sure if that would mean it's related to this bug specifically, or APZ checkboarding in general. https://github.com/webcompat/web-bugs/issues/4664
I think the checkerboarding-while-dragging-scrollbar is mostly covered by bug 1251617. Even though that cites a specific URL it's a more general issue. Feel free to link that bug up to the webcompat issue.
(In reply to Thomas Wisniewski from comment #2) > https://github.com/webcompat/web-bugs/issues/4664 This is general APZ checkerboarding. If you scroll sufficient fast with other APZ input methods (mouse wheel, touchpad, touchscreen), you see it as well. I don't think there's a need to file a bug specifically for that site.
Depends on: 1339831
Depends on: 1352863
No longer depends on: 1353284
Depends on: 1355374
Depends on: 1355375
Depends on: 1355376
Depends on: 1355651
Given the number of issues reported in the last few days for this feature I'm inclined to hold off on letting it ride the trains in 55, unless a significant number of the issues are fixed. (I'm assuming that won't happen because we don't have a lot of time to work on it). Bug 1355374 and bug 1355376 in particular seem rather bad, so if we're prioritizing fixes I would like to see those fixed first. The rest of the recent bugs seem to be largely related to scrollbar painting and motion off by a pixel which I suspect all have the same root cause.
Also for the record - given that most of the issues have been fixed since I wrote comment 5, I'm fine with letting this ride the trains in 55.
Depends on: 1367488
Depends on: apz-scrollbar-touch-dragging
Comment on attachment 8872381 [details] Bug 1211610 - Let async scrollbar dragging ride the trains. https://reviewboard.mozilla.org/r/143892/#review147614
Attachment #8872381 - Flags: review?(bugmail) → review+
Pushed by firstname.lastname@example.org: https://hg.mozilla.org/integration/autoland/rev/5d35bf170804 Let async scrollbar dragging ride the trains. r=kats
Depends on: 1378247
Depends on: 1438514
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