Fix external scroll offset handling for perspective elements.

VERIFIED FIXED in Firefox 68

Status

()

defect
VERIFIED FIXED
a month ago
7 days ago

People

(Reporter: gw, Assigned: gw)

Tracking

unspecified
mozilla68
Points:
---
Dependency tree / graph

Firefox Tracking Flags

(firefox68 verified)

Details

Attachments

(1 attachment)

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Description

a month ago
No description provided.
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Updated

a month ago
Blocks: 1546085
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Updated

a month ago
Blocks: 1546068
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Comment 1

a month ago

External scroll offsets are not propagated across reference frames.

When a perspective element scrolls relative to an ancestor scroll
frame, remove the effect of any external scroll offset during that
offset calculation.

Assignee

Updated

a month ago
Assignee: nobody → gwatson

Comment 2

a month ago
Pushed by gwatson@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/cf05b09d3f3a
Fix external scroll offset handling for perspective elements. r=emilio

Comment 3

a month ago
bugherder
Status: NEW → RESOLVED
Last Resolved: a month ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla68

I need some steps to reproduce/verify as I've been asked to verify this fix. Can you give me some detailed manual steps? Thanks.

Flags: needinfo?(gwatson)
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Comment 5

8 days ago

I think the best way to verify this would be to ensure WebRender is enabled, and confirm that https://bugzilla.mozilla.org/show_bug.cgi?id=1546068 and https://bugzilla.mozilla.org/show_bug.cgi?id=1546085 are drawing correctly. When this bug is present, those sites have very noticeable drawing issues. I'm not sure of any other pages that demonstrate the issue.

Flags: needinfo?(gwatson)

Considering that the issues mentioned above are not fixed or no longer occurring, I will consider this one fixed as well. Thanks.

Status: RESOLVED → VERIFIED
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