marquee tag scrolling overflows when the parent is a flexbox element
Categories
(Core :: Layout, defect)
Tracking
()
| Tracking | Status | |
|---|---|---|
| firefox-esr78 | --- | unaffected |
| firefox85 | --- | unaffected |
| firefox86 | --- | verified |
| firefox87 | --- | verified |
People
(Reporter: karlcow, Assigned: emilio)
References
(Regression, )
Details
(Keywords: regression)
Attachments
(2 files)
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400 bytes,
text/html
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Details | |
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48 bytes,
text/x-phabricator-request
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RyanVM
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approval-mozilla-beta+
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Details | Review |
- Copy and paste in the url bar of your firefox.
data:text/html,<!doctype html><div style="width:200px;border: 2px solid red;"><div style="display:flex;"><marquee>Lorem, ipsum dolor sit amet consectetur adipisicing elit. Deserunt commodi ratione iste tempore nemo mollitia exercitationem error cum excepturi sit ab eius consectetur quasi possimus facere, iusto est impedit laborum.</marquee></div></div>
Expected:
text scroll in the red border area
Actual:
text scroll on the full page.
Note:
On WebKit and Blink, the marquee text scrolls inside the size of the flexbox parent div.
<div style="width:200px;border: 2px solid red;">
<div style="display:flex;">
<marquee>Lorem, ipsum dolor sit amet consectetur adipisicing elit. Deserunt commodi ratione iste tempore nemo mollitia exercitationem error cum excepturi sit ab eius consectetur quasi possimus facere, iusto est impedit laborum.</marquee>
</div>
</div>
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Comment 1•4 years ago
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This isn't flex-specific; we have the same rendering if you use display:inline-block instead of display:flex (forcing intrinsic sizing on the marquee):
data:text/html,<!doctype html><div style="width:200px;border: 2px solid red;"><div style="display:inline-block;"><marquee style="border:1px solid black">Lorem, ipsum dolor sit amet consectetur adipisicing elit. Deserunt commodi ratione iste tempore nemo mollitia exercitationem error cum excepturi sit ab eius consectetur quasi possimus facere, iusto est impedit laborum.</marquee></div></div>
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Comment 2•4 years ago
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Assignee | |
Comment 3•4 years ago
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Seems like a regression from bug 1618584.
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Updated•4 years ago
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Assignee | |
Comment 4•4 years ago
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So what other browsers do is to zero out the min intrinsic size of the scroll frame, effectively: https://source.chromium.org/chromium/chromium/src/+/master:third_party/blink/renderer/core/layout/ng/ng_block_node.cc;l=332;drc=7553394f9e02446701a93e756360f873361f07bc
Is there a way to do that without more side-effects? contain:size clearly doesn't work here...
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Assignee | |
Comment 5•4 years ago
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I couldn't come up with a way to effectively cause this effect with
regular CSS I could put in marquee.css... But maybe y'all have thoughts?
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Assignee | |
Comment 6•4 years ago
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Can you think of a better way to fix this that doesn't hard-code the marquee in our scrollframe code? It seems quite unfortunate, but I haven't been able to come up with anything particularly better... I would've hoped some combination of overflow-wrap: anywhere would be able to help in this case, but not really...
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Updated•4 years ago
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Assignee | |
Comment 7•4 years ago
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Comment on attachment 9202923 [details]
Bug 1692380 - The intrinsic min isize of the marquee scroller should be zero. r=dholbert
Beta/Release Uplift Approval Request
- User impact if declined: Some sites with marquees might look broken.
Sorry for the super-late uplift request, but I think this is worth taking. It's a very simple fix which matches Chromium and is extremely targeted to marquee.
- Is this code covered by automated tests?: Yes
- Has the fix been verified in Nightly?: No
- Needs manual test from QE?: Yes
- If yes, steps to reproduce: comment 0, test-cases in the bug.
- List of other uplifts needed: none
- Risk to taking this patch: Low
- Why is the change risky/not risky? (and alternatives if risky): Super-targeted fix to fix marquee intrinsic size to match other browsers.
- String changes made/needed: none
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Assignee | |
Updated•4 years ago
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Comment 8•4 years ago
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(In reply to Emilio Cobos Álvarez (:emilio) from comment #6)
Can you think of a better way to fix this that doesn't hard-code the marquee in our scrollframe code?
Per discussion in matrix: no, I can't think of anything better. This seems fine to me.
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Updated•4 years ago
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Updated•4 years ago
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Comment 11•4 years ago
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| bugherder | ||
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Comment 12•4 years ago
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Comment on attachment 9202923 [details]
Bug 1692380 - The intrinsic min isize of the marquee scroller should be zero. r=dholbert
Approved for 86.0rc1.
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Comment 13•4 years ago
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| bugherder uplift | ||
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Updated•4 years ago
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Comment 14•4 years ago
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Verified as fixed on Firefox Nightly 87.0a1 on Windows 10 x64, macOS 10.15 and on Ubuntu 20.04.
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Comment 16•4 years ago
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Verified as fixed on Firefox 86.0 candidates build 1 on Windows 10 x64, macOS 10.15 and on Ubuntu 20.04.
Description
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