Cedec Posted March 20, 2020 Share Posted March 20, 2020 Hi I want to upgrade of TweenMax to GSAP and I want remove MagicScroll, because it doesn't work the way I would like. I am trying to implement IntersectionObserver but I can't start the event too much. My false test implement: let introIconSects = document.querySelectorAll('.wrapper') if ("IntersectionObserver" in window) { const appearOptions = { threshold: 1 }; const observerTwo = new IntersectionObserver((entries, observer) => { entries.forEach(entry => { var el = entry.target; if (!entry.isIntersecting && el.classList.contains('cover')) { el.tween.pause(0); } else if (entry.isIntersecting && el.classList.contains('cover')) { el.tween.play(); observerTwo.unobserve(el); } }) }, appearOptions) introIconSects.forEach((el) => { var tl = gsap.timeline(); var cov = el.querySelectorAll(".cover"); var img = el.querySelectorAll(".img"); var txt = el.querySelectorAll(".txt"); tl.from(cov, 0.6, { scaleX: 0, transformOrigin: "left" }); tl.to(cov, 0.6, { scaleX: 0, transformOrigin: "right" }, "reveal"); tl.from(img, 0.6, { opacity: 0 }, "reveal"); tl.staggerFrom(txt, 2, { opacity: 0, ease: "power4.inOut" }, 0.055, 0.5); observerTwo.observe(el); }); } else { /*** Fallback for older browsers ****/ } Can anyone tell you how to deal with it? My working example in MagicScroll See the Pen oNXMGQG by Cedec333 (@Cedec333) on CodePen 1 Link to comment Share on other sites More sharing options...
ZachSaucier Posted March 20, 2020 Share Posted March 20, 2020 Hey Cedec and welcome to the GreenSock forums! I highly recommend that you check out this article by Ryan (@elegantseagulls) , one of our moderators here. It shows you step by step how to make animations fire on scroll using the intersection observer API: https://medium.com/elegant-seagulls/parallax-and-scroll-triggered-animations-with-the-intersection-observer-api-and-gsap3-53b58c80b2fa 6 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now