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a5506dd31a
The previous code tried to do it, but it did it wrongly, as the overflow clip comes from the parent, not the child. Thus when we change a style that influences it, we weren't invalidating the SIMPLE_DISPLAY_LIST bit, and such. Make the reftest that caught this fail more reliable. Differential Revision: https://phabricator.services.mozilla.com/D51805 --HG-- extra : moz-landing-system : lando
40 lines
1.1 KiB
HTML
40 lines
1.1 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>Overflow areas are updated when dynamically changed to overflow: clip</title>
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<link rel="help" href="https://drafts.csswg.org/css-overflow/#valdef-overflow-clip">
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<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
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<link rel="author" title="Mozilla" href="https://mozilla.org">
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<link rel="match" href="clip-001-ref.html">
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<style>
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#target {
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width: 100px;
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height: 100px;
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overflow: visible;
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}
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#container {
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overflow: auto;
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height: 300px;
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}
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#fill {
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height: 5000px;
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background: blue;
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}
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</style>
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<div id="container">
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<div id="target">
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<div id="fill"></div>
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</div>
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</div>
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<script>
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onload = function() {
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let target = document.getElementById("target");
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window.unused = target.getBoundingClientRect(); // Update layout
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requestAnimationFrame(() => requestAnimationFrame(() => {
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target.style.overflow = "-moz-hidden-unscrollable";
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target.style.overflow = "clip";
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document.documentElement.removeAttribute("class");
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}));
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}
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</script>
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