| <!DOCTYPE html> |
| <title> |
| View transition promise reactions in incoming page should resolve before |
| the rendering continues (rAF, style/layout etc) |
| </title> |
| <link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| const params = new URLSearchParams(location.search); |
| |
| switch (params.get("mode") || "test") { |
| case "test": |
| promise_test(async t => { |
| const sequence = await new Promise(resolve => { |
| window.test_finished = s => { resolve(s) }; |
| const popup = window.open("?mode=old"); |
| t.add_cleanup(() => popup.close()); |
| }); |
| |
| assert_array_equals(sequence, ["pagereveal", "updateCallbackDone", "ready", "rAF", "rAF-microtask", "finished"]); |
| }); |
| break; |
| case "old": |
| onload = () => requestAnimationFrame(() => requestAnimationFrame(() => { |
| location.replace('?mode=new'); |
| })); |
| break; |
| case "new": |
| const sequence = []; |
| requestAnimationFrame(() => { |
| sequence.push("rAF"); |
| Promise.resolve().then(() => { |
| sequence.push("rAF-microtask"); |
| }); |
| }); |
| |
| addEventListener('pagereveal', event => { |
| sequence.push("pagereveal"); |
| event.viewTransition.ready.then(() => { |
| sequence.push("ready"); |
| }); |
| event.viewTransition.updateCallbackDone.then(() => { |
| sequence.push("updateCallbackDone"); |
| }); |
| event.viewTransition.finished.then(() => { |
| sequence.push("finished"); |
| window.opener.test_finished(sequence); |
| }); |
| }); |
| } |
| </script> |
| <style> |
| @view-transition { |
| navigation: auto; |
| } |
| </style> |
