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<!DOCTYPE html>
<meta charset="utf-8" />
<title>Popover anchor nesting</title>
<link rel="author" href="mailto:masonf@chromium.org">
<link rel=help href="https://open-ui.org/components/popover.research.explainer">
<link rel=help href="https://html.spec.whatwg.org/multipage/popover.html">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="resources/popover-utils.js"></script>
<body>
<!-- This example has the anchor (b1) for one popover (p1)
which contains a separate popover (p2) which is anchored
by a separate anchor (b2). -->
<button id=b1 onclick='p1.showPopover()'>Popover 1
<div popover id=p2 anchor=b2>
<span id=inside2>Inside popover 2</span>
</div>
</button>
<div popover id=p1 anchor=b1>This is popover 1</div>
<button id=b2 onclick='p2.showPopover()'>Popover 2</button>
<style>
#p1 { top:50px; }
#p2 { top:50px; left:250px; }
[popover] { border: 5px solid red; }
</style>
<script>
const popover1 = document.querySelector('#p1');
const button1 = document.querySelector('#b1');
const popover2 = document.querySelector('#p2');
(async function() {
setup({ explicit_done: true });
popover2.showPopover();
assert_false(popover1.matches(':popover-open'));
assert_true(popover2.matches(':popover-open'));
await clickOn(button1);
test(t => {
// Button1 is the anchor for popover1, and an ancestor of popover2.
// Since popover2 is open, but not popover1, button1 should not be
// the anchor of any open popover. So popover2 should be closed.
assert_false(popover2.matches(':popover-open'));
assert_true(popover1.matches(':popover-open'));
},'Nested popovers (inside anchor elements) do not affect light dismiss');
done();
})();
</script>
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