0ab9839c39
Automatic update from web-platform-tests Allow intersectionObserver to calculate smaller fractions. (#43073) Previously, Intersection Observer used layout units for certain SVG calculations, which caused a loss of accuracy. This patch replaces layout units with gfx::RectF, leading to more precise results Bug: 963246 Change-Id: I83be98bdfba166cb92e6ae1590da1d0913968151 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5019453 Reviewed-by: Philip Rogers <pdr@chromium.org> Commit-Queue: Yotam Hacohen <yotha@chromium.org> Cr-Commit-Position: refs/heads/main@{#1229548} Co-authored-by: Yotam Hacohen <yotha@chromium.org> -- wpt-commits: 4c48fa3be88df1b67a766938e4ec0c5dc38d918b wpt-pr: 43073
66 lines
1.4 KiB
HTML
66 lines
1.4 KiB
HTML
<!DOCTYPE html>
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<meta name="viewport" content="width=device-width,initial-scale=1">
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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/intersection-observer-test-utils.js"></script>
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<style>
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pre, #log {
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position: absolute;
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top: 0;
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left: 200px;
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}
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#target {
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background-color: green;
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width: 100px;
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height: 100px;
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}
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</style>
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<div id="target"></div>
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<script>
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var vw = document.documentElement.clientWidth;
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var vh = document.documentElement.clientHeight;
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var entries = [];
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promise_test(async function(t) {
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var target = document.getElementById("target");
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var root = document.getElementById("root");
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var observer = new IntersectionObserver(function(changes) {
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entries = entries.concat(changes)
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});
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observer.observe(target);
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entries = entries.concat(observer.takeRecords());
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assert_equals(entries.length, 0, "No initial notifications.");
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await waitForNotification();
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checkLastEntry(
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entries,
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0,
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[8, 108, 8, 108, 8, 108, 8, 108, 0, vw, 0, vh, true],
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);
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target.style.display = "none";
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await waitForNotification();
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checkLastEntry(
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entries,
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1,
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, false],
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);
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target.style.display = "";
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await waitForNotification();
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checkLastEntry(
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entries,
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2,
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[8, 108, 8, 108, 8, 108, 8, 108, 0, vw, 0, vh, true],
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);
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});
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</script>
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