Log Rocket - I'm in the Dark

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Prismic i o ford slash syntax. They've got whole bun of free code that you can check out for your next project. This episode is also sponsored by log rocket. It allows users to see a session replay, which is a video showing exactly what the user did when that er came about. The idea here would be that it gives the user the ability to define smooth animations between views or pages on the web with minimal effort.

In this Hasty Treat, Scott and Wes talk about the new Browser CSS Page Transitions API proposal and what features it opens up for developers on the web.

Prismic - Sponsor

Prismic is a Headless CMS that makes it easy to build website pages as a set of components. Break pages into sections of components using React, Vue, or whatever you like. Make corresponding Slices in Prismic. Start building pages dynamically in minutes. Get started at prismic.io/syntax.

LogRocket - Sponsor

LogRocket lets you replay what users do on your site, helping you reproduce bugs and fix issues faster. It’s an exception tracker, a session re-player and a performance monitor. Get 14 days free at logrocket.com/syntax.

Show Notes

WICG Shared Element Transitions
00:21 Welcome
01:33 Sponsor: Prismic
02:43 Sponsor: LogRocket
04:18 Browser animations on the web vs native apps
06:15 What is the targeted use case for it?
06:56 Shared Element to Root Transitions
11:14 Entry and Exit
17:33 How to enable this in Chrome
Example Code
Shared Element Transition history
Sarah Drasner’s demo

async function doTransition() { let transition = document.createDocumentTransition(); // Specify offered elements. The tag below is used to refer // to the generated pseudo elemends in script/CSS. document.querySelector(".old-message").style.pageTransitionTag = "message"; // The start() call triggers an async operation to capture // snapshots for the offered elements, await transition.start(async () => { // This callback is invoked by the browser when the capture // finishes and the DOM can be switched to the new state. // No frames are rendered until this callback returns. // Asynchronously load the new page. await coolFramework.changeTheDOMToPageB(); // Clear the old message if that element is still in the page document.querySelector(".old-message").style.pageTransitionTag = ""; // Set new message as the shared element 'message' document.querySelector(".new-message").style.pageTransitionTag = "message"; // Set up animations using WA-API on the next frame. requestAnimationFrame(() => { document.documentElement.animate(keyframes, { ...animationOptions, pseudoElement: "::page-transition-container(message)", }); }); // Note that when this callback finishes, the animations will start with the tagged elements. }); } Tweet us your tasty treats