| <!DOCTYPE html> |
| <title>Document#exitFullscreen() called twice</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 id="log"></div> |
| <script> |
| promise_test(async (t) => { |
| const once = { once: true }; |
| const div = document.querySelector("div"); |
| document.onfullscreenerror = t.unreached_func("fullscreenerror event"); |
| |
| await Promise.all([ |
| fullScreenChange(), |
| trusted_request(div), |
| ]); |
| |
| // We are now in fullscreen. |
| assert_equals(document.fullscreenElement, div); |
| |
| // Exit fullscreen twice. |
| const firstPromise = document.exitFullscreen(); |
| assert_equals( |
| document.fullscreenElement, |
| div, |
| "fullscreenElement after first exitFullscreen()" |
| ); |
| |
| const secondPromise = document.exitFullscreen(); |
| assert_equals( |
| document.fullscreenElement, |
| div, |
| "fullscreenElement after second exitFullscreen()" |
| ); |
| const eventChange = new Promise((resolve) => { |
| document.addEventListener("fullscreenchange", resolve, once); |
| document.addEventListener( |
| "fullscreenchange", |
| t.unreached_func("second event fired"), |
| once |
| ); |
| }); |
| |
| await Promise.all([ |
| fullScreenChange, |
| firstPromise, |
| secondPromise, |
| eventChange, |
| ]); |
| assert_equals(document.fullscreenElement, null); |
| }); |
| </script> |
