widget-supplied minimum sizes for scrollbars aren't accurate
Categories
(Core :: Widget, defect)
Tracking
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| Tracking | Status | |
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| firefox87 | --- | fixed |
People
(Reporter: heycam, Assigned: heycam)
References
Details
Attachments
(1 file)
For Linux, at least, we the scrollbar minimum size should be the same as the slider/thumb minimum size.
For Windows, we should at least fix the problem where a very short scrollable element shows scrollbars that overflow their parent (due to needing to show the two arrow buttons plus the thumb).
Ideally we'd do something more clever, like on Windows how the thumb disappears if the available size is small enough to allow the arrow buttons but not the thumb. And even more ideally, we'd handle rendering scrollbars at any size, by scaling down the buttons or something.
This is needed to fix /css/css-overflow/clip-003.html, at least, where we end up making different choices about which scrollbars can fit: https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/tools/reftest/reftest-analyzer.xhtml#logurl=https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/a6Wy8YkdQtC_i2v2gVhETA/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1
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Assignee | |
Comment 1•3 years ago
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On Linux, the <scrollbar> minimum size must take into account the
minimum track size (which is larger than the general minimum widget
size).
On other platforms, the scrollbar buttons must also be taken into
account.
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Updated•3 years ago
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Updated•3 years ago
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Pushed by cmccormack@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/e0c94e7af778 Make non-native theme <scrollbar> minimum sizes take into account track size and buttons. r=emilio
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Comment 3•3 years ago
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| bugherder | ||
Description
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