pageswap-skip-transition.html (1186B)
1 <!DOCTYPE html> 2 <title>View transitions: skipTransition() in pageswap aborts the transition</title> 3 <link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/"> 4 <link rel="author" href="mailto:khushalsagar@chromium.org"> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <style> 8 @view-transition { 9 navigation: auto; 10 } 11 </style> 12 <script> 13 const params = new URLSearchParams(location.search); 14 15 switch (params.get("mode") || "test") { 16 case "test": 17 promise_test(async t => { 18 const event = await new Promise(resolve => { 19 window.did_reveal = e => { resolve(e) }; 20 const popup = window.open("?mode=old"); 21 t.add_cleanup(() => popup.close()); 22 }); 23 24 assert_equals(event.viewTransition, null, 25 'viewTransition must have been skipped.'); 26 }); 27 break; 28 case "old": 29 onpageswap = (e) => { 30 assert_not_equals(e.viewTransition, null); 31 e.viewTransition.skipTransition(); 32 }; 33 onload = () => requestAnimationFrame(() => requestAnimationFrame(() => { 34 location.replace('?mode=new'); 35 })); 36 break; 37 case "new": 38 onpagereveal = e => window.opener.did_reveal(e); 39 break; 40 } 41 </script>