focus-opener.https.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /document-picture-in-picture/focus-opener.https.html - WPT Dashboard Interop Dashboard

<!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>