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<!DOCTYPE html>
<meta charset="utf-8">
<title>HTML Test: click on shadow host with delegatesFocus</title>
<link rel="author" href="mailto:dizhangg@chromium.org">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1327136">
<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>
<body>
<div id="host"></div>
</body>
<script>
const host = document.getElementById("host");
const shadowRoot = host.attachShadow({ mode: "open", delegatesFocus: true });
// Add an unfocusable spacer, because test_driver.click will click on the
// center point of #host, and we don't want the click to land on focusableDiv
const spacer = document.createElement("div");
spacer.style = "height: 1000px;";
shadowRoot.appendChild(spacer);
const focusableDiv = document.createElement("div");
focusableDiv.tabIndex = 0;
shadowRoot.appendChild(focusableDiv);
promise_test(async () => {
assert_equals(document.activeElement, document.body);
// Mouse click
await test_driver.click(host);
assert_equals(document.activeElement, host);
assert_equals(shadowRoot.activeElement, focusableDiv);
assert_true(host.matches(':focus'));
assert_true(focusableDiv.matches(':focus'));
assert_false(focusableDiv.matches(':focus-visible'));
}, ":focus should be applied to the host and the child node when the focus is moved by mouse click");
</script>
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