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<!DOCTYPE html>
<meta charset="utf-8">
<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>
<!-- Enumerate all the ways of creating an ancestor popover relationship -->
<div class="example">
<p>Direct DOM children</p>
<div popover class=ancestor><p>Ancestor popover</p>
<div popover class=child><p>Child popover</p></div>
</div>
</div>
<div class="example">
<p>Grandchildren</p>
<div popover class=ancestor><p>Ancestor popover</p>
<div>
<div>
<div popover class=child><p>Child popover</p></div>
</div>
</div>
</div>
</div>
<div class="example">
<p>popovertarget attribute relationship</p>
<div popover class=ancestor><p>Ancestor popover</p>
<button popovertarget=trigger1 class=clickme>Button</button>
</div>
<div id=trigger1 popover class=child><p>Child popover</p></div>
</div>
<div class="example">
<p>nested popovertarget attribute relationship</p>
<div popover class=ancestor><p>Ancestor popover</p>
<div>
<div>
<button popovertarget=trigger2 class=clickme>Button</button>
</div>
</div>
</div>
<div id=trigger2 popover class=child><p>Child popover</p></div>
</div>
<div class="example">
<p>anchor attribute relationship</p>
<div id=anchor1 popover class=ancestor><p>Ancestor popover</p></div>
<div anchor=anchor1 popover class=child><p>Child popover</p></div>
</div>
<div class="example">
<p>indirect anchor attribute relationship</p>
<div popover class=ancestor>
<p>Ancestor popover</p>
<div>
<div>
<span id=anchor2>Anchor</span>
</div>
</div>
</div>
<div anchor=anchor2 popover class=child><p>Child popover</p></div>
</div>
<!-- Other examples -->
<div popover id=p1 anchor=b1><p>This is popover #1</p>
<button id=b2 onclick='p2.showPopover()'>Popover 2</button>
<button id=b4 onclick='p4.showPopover()'>Popover 4</button>
</div>
<div popover id=p2 anchor=b2><p>This is popover #2</p>
<button id=b3 onclick='p3.showPopover()'>Popover 3</button>
</div>
<div popover id=p3 anchor=b3><p>This is popover #3</p></div>
<div popover id=p4 anchor=b4><p>This is popover #4</p></div>
<button id=b1 onclick='p1.showPopover()'>Popover 1</button>
<dialog id=d1>This is a dialog<button onclick='this.parentElement.close()'>Close</button></dialog>
<button id=b5 onclick='d1.showPopover()'>Dialog</button>
<script>
// Test basic ancestor relationships
for(let example of document.querySelectorAll('.example')) {
const descr = example.querySelector('p').textContent;
const ancestor = example.querySelector('[popover].ancestor');
const child = example.querySelector('[popover].child');
const clickToActivate = example.querySelector('.clickme');
test(function() {
assert_true(!!descr && !!ancestor && !!child);
assert_false(ancestor.matches(':popover-open'));
assert_false(child.matches(':popover-open'));
ancestor.showPopover();
if (clickToActivate)
clickToActivate.click();
else
child.showPopover();
assert_true(child.matches(':popover-open'));
assert_true(ancestor.matches(':popover-open'));
ancestor.hidePopover();
assert_false(ancestor.matches(':popover-open'));
assert_false(child.matches(':popover-open'));
},descr);
}
const popovers = [p1, p2, p3, p4];
function assertState(...states) {
assert_equals(popovers.length,states.length);
for(let i=0;i<popovers.length;++i) {
assert_equals(popovers[i].matches(':popover-open'),states[i],`Popover #${i+1} incorrect state`);
}
}
test(function() {
assertState(false,false,false,false);
p1.showPopover();
assertState(true,false,false,false);
p2.showPopover();
assertState(true,true,false,false);
p3.showPopover();
assertState(true,true,true,false);
// P4 is a sibling of P2, so showing it should
// close P2 and P3.
p4.showPopover();
assertState(true,false,false,true);
// P2 should close P4 now.
p2.showPopover();
assertState(true,true,false,false);
// Hiding P1 should hide all.
p1.hidePopover();
assertState(false,false,false,false);
}, "more complex nesting, all using anchor ancestry")
test(function() {
function openManyPopovers() {
p1.showPopover();
p2.showPopover();
p3.showPopover();
assertState(true,true,true,false);
}
openManyPopovers();
d1.show(); // Dialog.show() should hide all popovers.
assertState(false,false,false,false);
d1.close();
openManyPopovers();
d1.showModal(); // Dialog.showModal() should also hide all popovers.
assertState(false,false,false,false);
d1.close();
}, "popovers should be closed by dialogs")
test(function() {
// Note: d1 is a <dialog> element, not a popover.
assert_false(d1.open);
d1.show();
assert_true(d1.open);
p1.showPopover();
assertState(true,false,false,false);
assert_true(d1.open);
p1.hidePopover();
assert_true(d1.open);
d1.close();
assert_false(d1.open);
}, "dialogs should not be closed by popovers")
</script>
<style>
#p1 { top:350px; }
#p2 { top:350px; left:200px; }
#p3 { top:500px; }
#p4 { top:500px;left:200px; }
</style>
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