50 lines
1.4 KiB
HTML
50 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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body, html {
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margin: 0;
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}
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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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#reflect {
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width: 100px;
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height: 100px;
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background-color: hotpink;
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-webkit-box-reflect: below 10px;
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margin: 10px 0;
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}
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</style>
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<div id="reflect"></div>
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<div id="target">Hello, world!</div>
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<script>
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var delay = 100;
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var entries = [];
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var target;
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var supported = CSS.supports("-webkit-box-reflect", "below 10px");
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runTestCycle(function() {
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target = document.getElementById("target");
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assert_true(!!target, "target exists");
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let observer = new IntersectionObserver(function(changes) {
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entries = entries.concat(changes)
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}, {trackVisibility: true, delay: delay});
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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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runTestCycle(step0, "First rAF.", delay);
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}, "IntersectionObserverV2 detects occlusion from -webkit-box-reflect (if supported).", delay);
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function step0() {
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assert_equals(entries.length, 1, "Initial notification.");
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assert_equals(entries[0].isVisible, !supported, "Occluded if -webkit-box-reflect is supported.");
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}
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</script>
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