forked from mirrors/gecko-dev
a57cdd05c5
Previously, when current overflow area has one axis at zero size, calling `OverflowAreas::Union*` with a rect with both axes at zero would overwrite the axis with non-zero size. Differential Revision: https://phabricator.services.mozilla.com/D162245
59 lines
1.5 KiB
HTML
59 lines
1.5 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>CSS Overflow: Scroll Length Calculated Correctly When One Axis Has Zero Length</title>
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<link rel="author" title="David Shin" href="mailto:dshin@mozilla.com">
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<link rel="author" title="Mozilla" href="http://www.mozilla.org/">
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<link rel="help" href="https://drafts.csswg.org/css-overflow-3/#scrollable">
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<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1800907">
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<style>
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.scroll {
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overflow: scroll;
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}
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.zero-h {
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width: 100px;
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height: 0px;
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}
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.zero-w {
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width: 0;
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height: 100px;
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}
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.flex-row {
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display: flex;
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}
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.flex-col {
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display: flex;
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flex-direction: column;
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}
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.grid {
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display: grid;
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}
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</style>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/resources/check-layout-th.js"></script>
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<body onload="checkLayout('.scroll')">
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<div class="scroll zero-h" data-expected-scroll-height="100">
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<div class="zero-w"></div>
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</div>
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<div class="scroll zero-w" data-expected-scroll-width="100">
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<div class="zero-h"></div>
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</div>
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<div class="scroll zero-h flex-row" data-expected-scroll-height="100">
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<div class="zero-w"></div>
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</div>
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<div class="scroll zero-w flex-col" data-expected-scroll-width="100">
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<div class="zero-h"></div>
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</div>
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<div class="scroll zero-h grid" data-expected-scroll-height="100">
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<div class="zero-w"></div>
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</div>
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<div class="scroll zero-w grid" data-expected-scroll-width="100">
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<div class="zero-h"></div>
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</div>
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