зеркало из https://github.com/mozilla/gecko-dev.git
95 строки
2.0 KiB
HTML
95 строки
2.0 KiB
HTML
<!DOCTYPE html>
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<html lang="en" class="reftest-wait">
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<meta charset="utf-8">
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<title>This test fails - layerization should respect overflow:hidden clips around things with animated position</title>
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<style>
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div {
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min-height: 50px;
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box-model: border-box;
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}
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.first, .second {
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border: 1px solid blue;
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margin: 50px 0;
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position: relative;
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}
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.border {
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border: 1px solid black;
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}
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.clip {
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height: auto;
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overflow: hidden;
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padding: 10px 0 20px;
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}
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.animated-position {
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position: relative;
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left: 20px;
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margin-left: 220px;
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width: 100px;
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height: 100px;
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border-color: red;
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}
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body {
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margin: 0;
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padding: 0 100px;
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height: 3000px;
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}
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</style>
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<div class="first" reftest-assigned-layer="page-background">
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<!--
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This is just a regular box, it should end up in the page background layer.
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-->
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</div>
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<div class="clip border">
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<div class="border animated-position reftest-no-paint reftest-opaque-layer">
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<!--
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The background of .clip is uniform and opaque,
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.animated-position should be able to pull up that background color and
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become opaque itself.
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However, since this clip is not created by an animated geometry root that
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is a scrollable frame, we currently fail to recognize it, so this test
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will fail.
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-->
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</div>
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</div>
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<div class="second" reftest-assigned-layer="page-background">
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<!--
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This should share a layer with .first and the page background.
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However, since we don't recognize that .animated-position is contained in
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a clip, .second gets its own layer above .animated-position, so this test
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will fail.
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-->
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</div>
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<script>
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var animatedLeft = document.querySelector(".animated-position");
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function doTest() {
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animatedLeft.style.left = "-40px";
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document.documentElement.removeAttribute("class");
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}
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// Layerize #animatedLeft
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animatedLeft.offsetLeft;
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animatedLeft.style.left = "40px";
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animatedLeft.offsetLeft;
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animatedLeft.style.left = "60px";
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animatedLeft.offsetLeft;
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document.addEventListener("MozReftestInvalidate", doTest);
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setTimeout(doTest, 200);
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</script>
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