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If a ColumnSetWrapperFrame already has column-span children, ColumnSetWrapperFrame::GetContentInsertionFrame() will return itself to let WipeContainingBlock() aware this is the case to reframe. To make this work, we need to move the reframe condition prior to check NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR bit because the top level ColumnSetWrapperFrame never has NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR bit set. Differential Revision: https://phabricator.services.mozilla.com/D14819 --HG-- extra : moz-landing-system : lando
46 lines
1.3 KiB
HTML
46 lines
1.3 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: Add a simple block to columns which already contains a column-span</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-add-002-ref.html">
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<meta name="assert" content="This test checks a dynamically added block element 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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/* Add a simple block to columns which already contains a column-span. */
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var block2 = document.createElement("div");
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var text = document.createTextNode("block2");
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block2.appendChild(text);
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var column = document.getElementById("column");
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column.appendChild(block2);
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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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<h3>spanner</h3>
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</article>
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</body>
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</html>
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