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Ting-Yu Lin
c604e86515
We can move a float frame into its block parent's PushedFloatsList during column balancing when it cannot fit in the available block-size. Later, when the column balancing algorithm reflows the last column in an unconstrained block-size (in the very last reflow if needed [1]), we have to reflow the line which contains the float's placeholder. The old code uses `GetPrevInFlow() || GetNextInFlow()` to detect this scenario, which is insufficient because the float's block parent might not have any continuation. This patch uses `NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR` bit to detect this instead. [1] https://searchfox.org/mozilla-central/rev/5c04fc7016eb7f52cf835d482f1125c8f139c959/layout/generic/nsColumnSetFrame.cpp#1144-1154 Differential Revision: https://phabricator.services.mozilla.com/D154860
24 lines
699 B
HTML
24 lines
699 B
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<link rel="author" title="Ting-Yu Lin" href="mailto:[email protected]">
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<link rel="author" title="Mozilla" href="https://www.mozilla.org/">
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<link rel="help" href="https://drafts.csswg.org/css-break/#possible-breaks">
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<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1441048">
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<link rel="stylesheet" href="/fonts/ahem.css">
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<link rel="match" href="float-009-ref.html">
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<style>
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.multicol {
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column-count: 2;
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column-gap: 0;
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width: 200px;
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font: 50px/1 Ahem;
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}
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</style>
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<div class="multicol">
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<div>A<div style="float:left">X</div></div>
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<div>B<div style="float:left">X</div></div>
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<div>C<div style="float:left">X</div></div>
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</div>
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