31 lines
995 B
HTML
31 lines
995 B
HTML
<!DOCTYPE html>
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<title>Layout Instability: movement distance uses starting corner</title>
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<link rel="help" href="https://wicg.github.io/layout-instability/" />
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<style>
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#shifter { position: relative; width: 100px; height: 100px; direction: rtl; background: blue; }
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</style>
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<div id='shifter'></div>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="resources/util.js"></script>
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<script>
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promise_test(async () => {
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const watcher = new ScoreWatcher;
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// Wait for the initial render to complete.
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await waitForAnimationFrames(2);
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// Move the left edge rightward by 10px and the right edge leftward by 20px.
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document.querySelector("#shifter").style = "width: 70px; left: 10px";
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// The movement distance should use the displacement of the right edge.
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const expectedScore = computeExpectedScore(100 * 100, 20);
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await watcher.promise;
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assert_equals(watcher.score, expectedScore);
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}, 'RTL element.');
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</script>
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