74 lines
1.6 KiB
HTML
74 lines
1.6 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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body { margin: 0 }
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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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#container {
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padding: 8px;
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width: 0px;
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height: 0px;
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}
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</style>
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<div id="container">
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<div id="target"></div>
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</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 container = document.getElementById("container");
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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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container.style.clipPath = "inset(1000px)";
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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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[8, 108, 8, 108, 0, 0, 0, 0, 0, vw, 0, vh, false],
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);
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container.style.clipPath = "";
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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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