Closed
Bug 1665323
Opened 4 years ago
Closed 4 years ago
don't allow visual viewport offset to take on inconsistent value
Categories
(Core :: Layout: Scrolling and Overflow, defect)
Core
Layout: Scrolling and Overflow
Tracking
()
RESOLVED
FIXED
83 Branch
| Tracking | Status | |
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| firefox83 | --- | fixed |
People
(Reporter: tnikkel, Assigned: tnikkel)
References
Details
Attachments
(1 file)
No description provided.
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Assignee | |
Comment 1•4 years ago
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The problems that it causes that are referred to in the patch is that we use the vvoffset and GetScrollRangeForUserInputEvents to compute the scrollbar cur, min, and max attributes. If we have a non-zero vvoffset when we are zooomed backed out, GetScrollRangeForUserInputEvents will be a zero range and so the cur attribute (non-zero) will be larger than the max attribute (0).
This then causes nsSliderFrame::AttributeChanged to call ScrollByWhole at
Which we definitely do not want.
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Updated•4 years ago
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Severity: -- → S3
Status: NEW → ASSIGNED
Pushed by tnikkel@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/8081a13f8d25 Make sure the visual viewport offset always takes on valid values. r=kats
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Comment 3•4 years ago
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| bugherder | ||
Status: ASSIGNED → RESOLVED
Closed: 4 years ago
status-firefox83:
--- → fixed
Resolution: --- → FIXED
Target Milestone: --- → 83 Branch
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Description
•