pagereveal-finished-promise.html (1532B)
1 <!DOCTYPE html> 2 <html class="reftest-wait"> 3 <title> 4 View transitions: Test pagereveal.finished and skipTransition 5 </title> 6 <link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/"> 7 <link rel="author" href="mailto:bokan@chromium.org"> 8 <link rel="match" href="pagereveal-finished-promise-ref.html"> 9 <script src="/common/reftest-wait.js"></script> 10 <script> 11 const params = new URLSearchParams(location.search); 12 const is_new_page = params.has('new'); 13 14 if (is_new_page) { 15 document.documentElement.classList.add('newPage'); 16 17 addEventListener('pagereveal', e => { 18 e.viewTransition.finished.then(() => { 19 // Animations are finished so the screenshot should contain live DOM. 20 takeScreenshot(); 21 }); 22 e.viewTransition.skipTransition(); 23 }); 24 } else { 25 onload = () => { 26 requestAnimationFrame(() => requestAnimationFrame(() => { 27 location.replace(window.location.href + '?new'); 28 })); 29 }; 30 } 31 </script> 32 <style> 33 @view-transition { 34 navigation: auto; 35 } 36 #target { 37 width: 100px; 38 height: 100px; 39 background-color: limegreen; 40 position: absolute; 41 left: 20px; 42 top: 100px; 43 view-transition-name: target; 44 } 45 .newPage #target { 46 left: 300px; 47 } 48 49 /* Long duration to ensure skipTransition aborts the transition */ 50 ::view-transition-group(target) { 51 animation-duration: 300s; 52 } 53 54 /* Ensure view-transition snapshots are easily distinguished from live DOM */ 55 :root { 56 view-transition-name: unset; 57 } 58 ::view-transition { 59 background-color: thistle; 60 } 61 </style> 62 <div id="target"></div> 63 </html>