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<!DOCTYPE html>
<title>Test that a document picture-in-picture window can use Window's focus()
API to focus its opener window</title>
<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>
<iframe></iframe>
<script>
promise_test(async (t) => {
await test_driver.bless('request PiP window from top window');
const pipWindow = await documentPictureInPicture.requestWindow();
// Blur this window by focusing the iframe. This will allow us to detect that
// the document picture-in-picture window has focused us.
const blurPromise = new Promise(async (resolve) => {
window.addEventListener('blur', resolve, { once: true });
await test_driver.bless('focus inner iframe to blur window');
document.getElementsByTagName('iframe')[0].focus();
});
await blurPromise;
// Now focus this window from the document picture-in-picture window's
// context.
const focusPromise = new Promise(async (resolve) => {
window.addEventListener('focus', resolve, { once: true });
await test_driver.bless('focus opener window', pipWindow);
const focusScript = pipWindow.document.createElement('script');
focusScript.setAttribute('src', 'support/focus-opener.js');
pipWindow.document.body.append(focusScript);
});
return focusPromise;
});
</script>
</body>
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