| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <link rel="author" title="Joey Arhar" href="mailto:jarhar@chromium.org"> |
| <link rel="help" href="https://github.com/WICG/display-locking"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <body> |
| <div style="height: 2000px;">spacer</div> |
| <script> |
| async_test(t => { |
| window.onload = t.step_func_done(() => { |
| const foo = document.createElement('div'); |
| foo.textContent = 'foo'; |
| foo.id = 'foo'; |
| document.body.appendChild(foo); |
| foo.addEventListener('beforematch', () => { |
| // Move the matched element 2000px down the page. |
| const spacer = document.createElement('div'); |
| spacer.style.height = '2000px'; |
| document.body.appendChild(spacer); |
| foo.remove(); |
| document.body.appendChild(foo); |
| }); |
| |
| window.location.hash = '#foo'; |
| |
| const offsetAfterMatch = window.pageYOffset; |
| foo.scrollIntoView(); |
| assert_equals(offsetAfterMatch, window.pageYOffset, `The scroll after beforematch should be the same as scrolling directly to the element's final destination.`); |
| }); |
| }, 'Verifies that when a beforematch event handler moves a matching element, we scroll to its final location.'); |
| </script> |
| </body> |
