| <!DOCTYPE html> |
| <html class="reftest-wait"> |
| <title>View transitions: basic cross-document navigation to a prerender</title> |
| <link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/"> |
| <link rel="author" href="mailto:bokan@chromium.org"> |
| <link rel="match" href="transition-to-prerender-ref.html"> |
| <script src="/common/utils.js"></script> |
| <script src="/common/reftest-wait.js"></script> |
| <script src="/speculation-rules/resources/utils.js"></script> |
| <script src="/speculation-rules/prerender/resources/utils.js"></script> |
| <style> |
| @view-transition { |
| navigation: auto; |
| } |
| html { |
| background-color: red; |
| } |
| html.outgoing { |
| background-color: cornflowerblue; |
| } |
| html.incoming { |
| background-color: hotpink; |
| } |
| ::view-transition { |
| background-color: limegreen; |
| } |
| ::view-transition-new(root) { |
| transform: translateY(55vh); |
| animation: none; |
| opacity: 1; |
| } |
| ::view-transition-old(root) { |
| transform: translateY(-55vh); |
| animation: none; |
| opacity: 1; |
| } |
| ::view-transition-group(root) { |
| animation-duration: 300s; |
| } |
| </style> |
| <script> |
| const params = new URLSearchParams(location.search); |
| const uid = params.has('uid') ? params.get('uid') : token(); |
| const ready_channel = new PrerenderChannel('ready-to-activate', uid); |
| |
| if (!implementsSpeculationRules()) { |
| onload = () => { |
| document.body.innerText = 'This test requires speculation rules.'; |
| takeScreenshot(); |
| } |
| } else { |
| if (!params.has('next')) { |
| onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest)); |
| } else { |
| onload = prerenderedPage; |
| } |
| } |
| |
| async function runTest() { |
| document.documentElement.classList.add('outgoing'); |
| const next_url = |
| new URL(`transition-to-prerender.html?next&uid=${uid}`, window.location).href; |
| |
| const ready_to_activate = new Promise(resolve => { |
| ready_channel.addEventListener('message', resolve, {once: true}); |
| }); |
| |
| startPrerendering(next_url); |
| |
| await ready_to_activate; |
| |
| window.location.replace(new URL(next_url, window.location)); |
| } |
| |
| function prerenderedPage() { |
| document.addEventListener('prerenderingchange', () => { |
| document.documentElement.classList.add('incoming'); |
| requestAnimationFrame(takeScreenshot); |
| }); |
| |
| ready_channel.postMessage('readyToActivateMessage'); |
| ready_channel.close(); |
| } |
| |
| function implementsSpeculationRules() { |
| return ('supports' in HTMLScriptElement) && |
| HTMLScriptElement.supports('speculationrules'); |
| } |
| </script> |
| </html> |
