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<!DOCTYPE html>
<meta name="viewport" content="width=device-width,initial-scale=1">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="./resources/intersection-observer-test-utils.js"></script>
<style>
pre, #log {
position: absolute;
top: 0;
left: 200px;
}
#target {
width: 100px;
height: 100px;
background-color: green;
}
</style>
<script>
var vw = document.documentElement.clientWidth;
var vh = document.documentElement.clientHeight;
var entries = [];
var target;
runTestCycle(function() {
var detached_document = document.implementation.createHTMLDocument("test");
target = detached_document.createElement("div");
target.id = "target";
var observer = new IntersectionObserver(function(changes) {
entries = entries.concat(changes)
});
observer.observe(target);
runTestCycle(step0, "First rAF.");
}, "IntersectionObserver in a single document using the implicit root.");
function step0() {
document.adoptNode(target);
document.body.appendChild(target);
checkLastEntry(entries, 0, [0, 0, 0, 0, 0, 0, 0, 0]);
runTestCycle(step1, "Adopt target.");
}
function step1() {
checkLastEntry(entries, 1, [8, 108, 8, 108, 8, 108, 8, 108, 0, vw, 0, vh, true]);
}
</script>
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