зеркало из https://github.com/mozilla/gecko-dev.git
57 строки
1.8 KiB
HTML
57 строки
1.8 KiB
HTML
<!DOCTYPE html>
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<html class="reftest-wait reftest-no-flush">
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<meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1">
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<!--
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A test for a partial pre-rendered transform animation moves to a place where
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jank happens.
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-->
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<style>
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html {
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overflow: hidden;
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}
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body {
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margin: 0px;
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padding: 0px;
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}
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@keyframes anim {
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/* The reftest window size is (800x1000), which means the partial prerender */
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/* area is (1125x1125). Thus -325px(= 800 - 1125) is the boundary where */
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/* jank happens, so we choose a value close to -325px so that within a next */
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/* couple of frames jank should happen. */
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0% { transform: translateX(-324px); }
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100% { transform: translateX(-2000px); }
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}
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#target {
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width: 2000px;
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height: 2000px;
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position: absolute;
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transform: translateX(0px);
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}
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</style>
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<div id="target">
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<!--
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Put an SVG element so that the transform display item has a blob on
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WebRender which means this test properly fails without the proper fix.
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-->
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 2000 2000">
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<!-- green on the pre-render area -->
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<rect fill="green" x="0" width="1125" height="2000"></rect>
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<rect fill="red" x="1125" width="875" height="2000"></rect>
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</svg>
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</div>
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<script>
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document.addEventListener("MozReftestInvalidate", () => {
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// A shorter animation-duration than we normally use (100s) because if we used
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// the longer duration it may NOT fail this test even if any jank happens.
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target.style.animation = "anim 10s 1s";
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target.addEventListener("animationstart", () => {
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// Wait a second to make sure the animation gets stucked (i.e. jank) at the
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// boundary (325px).
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setTimeout(() => {
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document.documentElement.classList.remove("reftest-wait");
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}, 1000);
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});
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}, { once: true });
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</script>
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</html>
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