| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <meta name="timeout" content="long"> |
| <title>Screen wake locks respect page visibility changes</title> |
| <link rel="help" href="https://w3c.github.io/wake-lock/#dfn-requesting-the-wake-lock"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| |
| promise_test(async t => { |
| const controller = new AbortController(); |
| const screenWakeLock = WakeLock.request('screen', { signal: controller.signal }); |
| const systemWakeLock = WakeLock.request('system', { signal: controller.signal }); |
| const systemWakeLockPromise = new Promise((resolve, reject) => { |
| systemWakeLock.catch(error => { |
| assert_equals("AbortError", error.name, "systemWakeLock must have been aborted"); |
| assert_false(document.hidden, "systemWakeLock must have been aborted after the page is visible again"); |
| resolve(); |
| }); |
| }); |
| |
| const eventWatcher = new EventWatcher(t, document, "visibilitychange"); |
| await eventWatcher.wait_for("visibilitychange"); |
| assert_true(document.hidden, "document is hidden after the visibilitychange event"); |
| await promise_rejects(t, "AbortError", screenWakeLock, "existing screen locks are aborted"); |
| await promise_rejects(t, "NotAllowedError", WakeLock.request('screen'), |
| "new screen locks are not allowed when the page is not visible"); |
| |
| await eventWatcher.wait_for("visibilitychange"); |
| assert_false(document.hidden, "document is no longer hidden after the visibilitychange event"); |
| controller.abort(); |
| |
| return systemWakeLockPromise; |
| }, "Test screen locks respect page visibility changes and system locks are unchanged"); |
| |
| </script> |
| |
| <p>Switch the page to the background, then switch back to it.</p> |
