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<!DOCTYPE html>
<link rel=author href="mailto:jarhar@chromium.org">
<link rel=help href="https://github.com/whatwg/html/issues/9043">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=popover popover=auto>popover</div>
<div id=popover2 popover=auto>popover</div>
<script>
test(() => {
assert_false(popover.matches(':popover-open'),
'Popover should be closed when the test starts.');
assert_true(popover.togglePopover(),
'togglePopover() should return true.');
assert_true(popover.matches(':popover-open'),
'togglePopover() should open the popover.');
assert_true(popover.togglePopover(/*force=*/true),
'togglePopover(true) should return true.');
assert_true(popover.matches(':popover-open'),
'togglePopover(true) should open the popover.');
assert_false(popover.togglePopover(),
'togglePopover() should return false.');
assert_false(popover.matches(':popover-open'),
'togglePopover() should close the popover.');
assert_false(popover.togglePopover(/*force=*/false),
'togglePopover(false) should return false.');
assert_false(popover.matches(':popover-open'),
'togglePopover(false) should close the popover.');
}, 'togglePopover should toggle the popover and return true or false as specified.');
test(() => {
const popover = document.getElementById('popover2');
popover.addEventListener('beforetoggle', event => event.preventDefault(), {once: true});
assert_false(popover.togglePopover(/*force=*/true),
'togglePopover(true) should return false when the popover does not get opened.');
assert_false(popover.matches(':popover-open'));
// We could also add a test for the return value of togglePopover(false),
// but every way to prevent that from hiding the popover also throws an
// exception, so the return value is not testable.
}, `togglePopover's return value should reflect what the end state is, not just the force parameter.`);
test(() => {
const popover = document.createElement('div');
document.body.appendChild(popover);
assert_throws_dom('NotSupportedError', () => popover.togglePopover(),
'togglePopover() should throw an exception when the element has no popover attribute.');
assert_throws_dom('NotSupportedError', () => popover.togglePopover(true),
'togglePopover(true) should throw an exception when the element has no popover attribute.');
assert_throws_dom('NotSupportedError', () => popover.togglePopover(false),
'togglePopover(false) should throw an exception when the element has no popover attribute.');
popover.setAttribute('popover', 'auto');
popover.remove();
assert_throws_dom('InvalidStateError', () => popover.togglePopover(),
'togglePopover() should throw an exception when the element is disconnected.');
assert_throws_dom('InvalidStateError', () => popover.togglePopover(true),
'togglePopover(true) should throw an exception when the element is disconnected.');
assert_throws_dom('InvalidStateError', () => popover.togglePopover(false),
'togglePopover(false) should throw an exception when the element is disconnected.');
document.body.appendChild(popover);
// togglePopover(false) should not throw just because the popover is already hidden.
popover.togglePopover(false);
popover.showPopover();
// togglePopover(true) should not throw just because the popover is already showing.
popover.togglePopover(true);
// cleanup
popover.hidePopover();
}, 'togglePopover should throw an exception when there is no popover attribute.');
</script>
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