blob: f159c22164bb62064b62bc089faf5bd05cba555f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
<!DOCTYPE html>
<link rel=author href="mailto:jarhar@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<script>
test(() => {
const host = document.createElement('div');
document.body.appendChild(host);
const shadowRoot = host.attachShadow({mode: 'open', delegatesFocus: true});
const shadowInput = document.createElement('input');
shadowRoot.appendChild(shadowInput);
host.focus();
assert_equals(document.activeElement, host, 'The shadow host should be focused.');
host.setAttribute('tabindex', '0');
assert_equals(document.activeElement, host, 'The shadow host should remain focused after changing tabindex.');
}, 'Setting tabindex on the shadow host of a focused element with delegatesFocus should not change focus.');
</script>
|