| <!DOCTYPE html> |
| <html class=reftest-wait> |
| <title>View transitions: root element style changes during transition</title> |
| <link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/"> |
| <link rel="author" href="mailto:vmpstr@chromium.org"> |
| <link rel="match" href="root-style-change-during-animation-ref.html"> |
| <script src="/common/reftest-wait.js"></script> |
| <style> |
| #target { |
| width: 100px; |
| height: 100px; |
| contain: paint; |
| background: blue; |
| view-transition-name: target; |
| } |
| |
| #hidden { |
| background: pink; |
| width: 10px; |
| height: 10px; |
| view-transition-name: hidden; |
| contain: paint; |
| } |
| |
| html::view-transition { |
| background: grey; |
| } |
| |
| html::view-transition-group(hidden) { |
| animation-duration: 500s; |
| visibility: hidden; |
| } |
| |
| html::view-transition-group(root) { |
| visibility: hidden; |
| } |
| |
| .test::view-transition-group(target) { |
| background: green; |
| } |
| .test::view-transition-image-pair(target) { |
| visibility: hidden; |
| } |
| </style> |
| |
| <div id=target></div> |
| <div id=hidden></div> |
| |
| <script> |
| failIfNot(document.startViewTransition, "Missing document.startViewTransition"); |
| |
| function flipClass() { |
| document.documentElement.classList.add("test"); |
| requestAnimationFrame(takeScreenshot); |
| } |
| |
| async function runTest() { |
| document.startViewTransition(() => { |
| hidden.style.width="20px"; |
| requestAnimationFrame(() => requestAnimationFrame(flipClass)); |
| }); |
| } |
| onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest)); |
| </script> |
| |
