open-closed-pseudo.html | Explore in Territory

<!DOCTYPE html>
<link rel=author href="mailto:[email protected]">
<link rel=help href="https://drafts.csswg.org/selectors-4/#open-state">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>

<dialog>dialog</dialog>

<details>details</details>

<select>
  <option>one</option>
</select>

<script>
test(() => {
  const dialog = document.querySelector('dialog');
  assert_true(dialog.matches(':closed'),
    ':closed should match when the dialog is closed.');
  assert_false(dialog.matches(':open'),
    ':open should not match when the dialog is closed.');

  dialog.show();
  assert_false(dialog.matches(':closed'),
    ':closed should not match after dialog.open().');
  assert_true(dialog.matches(':open'),
    ':open should match after dialog.open().');

  dialog.close();
  dialog.showModal();
  assert_false(dialog.matches(':closed'),
    ':closed should not match after dialog.showModal().');
  assert_true(dialog.matches(':open'),
    ':open should match after dialog.showModal().');

  dialog.close();
}, 'The dialog element should support :open and :closed.');

test(() => {
  const details = document.querySelector('details');
  assert_true(details.matches(':closed'),
    ':closed should match when the details is closed.');
  assert_false(details.matches(':open'),
    ':open should not match when the details is closed.');

  details.open = true;
  assert_false(details.matches(':closed'),
    ':closed should not match when the details is open.');
  assert_true(details.matches(':open'),
    ':open should match when the details is open.');
}, 'The details element should support :open and :closed.');

promise_test(async () => {
  const select = document.querySelector('select');
  assert_true(select.matches(':closed'),
    ':closed should match when the select is closed.');
  assert_false(select.matches(':open'),
    ':open should not match when the select is closed.');

  await test_driver.click(select);
  await new Promise(requestAnimationFrame);
  assert_false(select.matches(':closed'),
    ':closed should not match when the select is open.');
  assert_true(select.matches(':open'),
    ':open should match when the select is open.');
}, 'The select element should support :open and :closed.');
</script>
chromium/third_party/blink/web_tests/external/wpt/css/selectors/open-closed-pseudo.html
