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When we are in CreateColumnSpanSiblings(), there are floats in nsFrameConstructorState::mFloatedList that are waiting to be added to aInitialBlock once we leave scope of the float containing block. However, since we are creating non-column-span continuations, which are continuations of aInitialBlock, we should reparent the floats to these continuations if their placeholders are the descendants of the newly-created continuations. multicol-span-float-002.html exercises nsCSSFrameConstructor::ConstructBlock() and multicol-span-float-003.html exercises nsCSSFrameConstructor::CreateIBSiblings(). Without this patch, multicol-span-float-002.html and multicol-span-float-003.html still pass, but they trigger ``` ASSERTION: nsBlockFrame::CheckFloats: Explicit float list is out of sync with float cache ``` 1524382.html used to trigger the above assertions. Now it's fixed. Differential Revision: https://phabricator.services.mozilla.com/D120105
37 lines
833 B
HTML
37 lines
833 B
HTML
<!DOCTYPE html>
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<html>
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<meta charset="utf-8">
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<title>CSS Multi-column Layout Reference: Test floats in a multi-column container with column-span</title>
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<link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
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<link rel="author" title="Mozilla" href="http://www.mozilla.org/">
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<link rel="stylesheet" href="/fonts/ahem.css">
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<style>
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article {
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width: 300px;
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font: 1.25em/1 Ahem;
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}
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.float-left {
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float: left;
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color: black;
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}
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.float-right {
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float: right;
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color: navy;
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}
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.column-span {
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clear: both;
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color: pink;
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}
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</style>
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<article>
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<div class="float-left">black</div>
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<div class="float-right">navvy</div>
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<div class="column-span">Pink</div>
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<div class="float-left">black</div>
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<div class="float-right">navyy</div>
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</article>
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</html>
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