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1a47a235fd
The major change in this patch is ::-moz-column-span-wrapper blocks are no longer linked into the continuation chains when they're created in CreateColumnSpanSiblings(). We can do that because ::-moz-column-span-wrapper is an non-inheriting anon box, which doesn't need to be restyled. This prevents RestyleManager::ProcessPostTraversal or nsIFrame::UpdateStyleOfOwnedChildFrame, which set the same style on all continuations of the frame they are working with, from overriding the ::-moz-column-span-wrapper style. GetNextContinuationWithSameStyle was deleted in bug 1447367. Delete the comment in nsInlineFrame::UpdateStyleOfOwnedAnonBoxesForIBSplit() to avoid confusion. This patch also adds another condition to reframe the multi-column container in MaybeRecreateContainerForFrameRemoval(). That condition is when an element has a "column-span:all" descendant, i.e. the element's frame has "column-span:all" siblings (which is created by CreateColumnSpanSiblings). The added test multicol-span-all-dynamic-remove-006.html will fail without this patch. Depends on D5212 Differential Revision: https://phabricator.services.mozilla.com/D9988 --HG-- extra : moz-landing-system : lando
44 lines
1.2 KiB
HTML
44 lines
1.2 KiB
HTML
<!DOCTYPE html>
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<html class="reftest-wait">
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<meta charset="utf-8">
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<title>CSS Multi-column Layout Test: Remove the parent of a column-spanner</title>
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<link rel="author" title="Ting-Yu Lin" href="tlin@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-multicol-1/#column-span">
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<link rel="match" href="multicol-span-all-dynamic-remove-001-ref.html">
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<meta name="assert" content="This test checks removing the parent of a column-spanner should be rendered correctly.">
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<script>
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function runTest() {
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document.body.offsetHeight;
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document.getElementById("block").remove();
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document.documentElement.removeAttribute("class");
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}
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</script>
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<style>
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#column {
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column-count: 3;
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column-rule: 6px solid;
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width: 400px;
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outline: 1px solid black;
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}
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h3 {
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column-span: all;
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outline: 1px solid blue;
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}
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</style>
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<body onload="runTest();">
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<article id="column">
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<div>block1</div>
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<div id="block">
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<h3>inner spanner</h3>
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<div>inner block</div>
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</div>
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<div>block2</div>
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</article>
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</body>
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</html>
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