<!DOCTYPE html>
<meta charset="utf-8" />
<meta viewport="width=device-width, initial-scale=1" />
<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></body>
<script type="module">
  import {
    getOppositeOrientation,
    attachIframe,
    makeCleanup,
  } from "./resources/orientation-utils.js";

  promise_test(async (t) => {
    t.add_cleanup(makeCleanup());
    await test_driver.bless("request full screen");
    await document.documentElement.requestFullscreen();
    const currentOrientation = screen.orientation.type;
    await screen.orientation.lock(
      getOppositeOrientation()
    );
  }, "fullscreen and orientation support");

  promise_test(async (t) => {
    const iframe = await attachIframe();
    t.add_cleanup(makeCleanup(iframe));
    const iframeWindow = iframe.contentWindow;
    await test_driver.bless("request full screen");
    await document.documentElement.requestFullscreen();
    const currentOrientation = window.screen.orientation.type;
    const lockPromise = iframeWindow.screen.orientation.lock(
      getOppositeOrientation()
    );
    const fsExitPromise = document.exitFullscreen();
    await promise_rejects_dom(
      t,
      "SecurityError",
      iframeWindow.DOMException,
      lockPromise
    );
    await fsExitPromise;
  }, "Iframe can't itself know if it's parent is fullscreen when changing orientation");
</script>
