Animate a Card of Liles in Javascript

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The next one, whichs i was really hoping for, is a shared element at two root transitions. So you can think of this as a card opening to a full page. You know, i almost never implement this style of animation because of some of the pitfalls that come along with trying to do this thing in javascript. It's nice tit that's something they're considering.

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.

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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