| Xiaoming Shi | 73dfa20 | 2020-03-12 11:31:35 -0700 | [diff] [blame] | 1 | <!DOCTYPE html> |
| 2 | <meta name="viewport" content="width=device-width,initial-scale=1"> |
| 3 | <script src="/resources/testharness.js"></script> |
| 4 | <script src="/resources/testharnessreport.js"></script> |
| 5 | <script src="./resources/intersection-observer-test-utils.js"></script> |
| 6 | |
| 7 | <script> |
| 8 | var entries = []; |
| 9 | var popup, target; |
| 10 | |
| 11 | function waitForPopupNotification(f) { |
| 12 | popup.requestAnimationFrame(function() { |
| 13 | popup.requestAnimationFrame(function() { popup.setTimeout(f); }); |
| 14 | }); |
| 15 | } |
| 16 | |
| 17 | async_test((t) => { |
| 18 | var observer = new IntersectionObserver(function(changes) { |
| 19 | entries = entries.concat(changes); |
| 20 | }); |
| 21 | popup = window.open(); |
| 22 | t.add_cleanup(() => popup.close()); |
| 23 | target = popup.document.createElement('div'); |
| 24 | target.style.width = "100px"; |
| 25 | target.style.height = "100px"; |
| 26 | observer.observe(target); |
| 27 | waitForPopupNotification(t.step_func(() => { |
| 28 | assert_equals(entries.length, 1, "Initial notification for detached target."); |
| 29 | assert_equals(entries[0].isIntersecting, false, "not intersecting"); |
| 30 | popup.document.body.appendChild(target); |
| 31 | waitForPopupNotification(t.step_func_done(() => { |
| 32 | assert_equals(entries.length, 2, "Notification after insertion into popup."); |
| 33 | assert_equals(entries[1].isIntersecting, true, "intersecting"); |
| 34 | })); |
| 35 | })); |
| 36 | }, "IntersectionObserver with target in a different window."); |
| 37 | </script> |
