| <!DOCTYPE html> |
| <title>Move the fullscreen element to another document</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> |
| <script src="../trusted-click.js"></script> |
| <div></div> |
| <iframe></iframe> |
| <script> |
| promise_test(async (t) => { |
| t.add_cleanup(() => { |
| if (document.fullscreenElement) { |
| return document.exitFullscreen(); |
| } |
| }); |
| const div = document.querySelector("div"); |
| const iframe = document.querySelector("iframe"); |
| const [, event] = await Promise.all([ |
| trusted_request(div), |
| fullScreenChange(), |
| ]); |
| |
| assert_equals(document.fullscreenElement, div); |
| assert_equals(event.target, div); |
| |
| assert_equals(div.ownerDocument, document); |
| iframe.contentDocument.body.appendChild(div); |
| assert_not_equals(div.ownerDocument, document); |
| // Moving /div/ removes it from the top layer and thus the fullscreen |
| // element synchronously becomes null. |
| assert_equals(document.fullscreenElement, null); |
| |
| div.onfullscreenchange = t.unreached_func( |
| "fullscreenchange fired on element" |
| ); |
| iframe.contentDocument.onfullscreenchange = t.unreached_func( |
| "fullscreenchange fired on other document" |
| ); |
| const secondEvent = await fullScreenChange(); |
| assert_equals(document.fullscreenElement, null); |
| assert_equals(secondEvent.target, document); |
| }); |
| </script> |