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GSAP 3 Scroll Trigger on leave animation reverse

I have used GSAP 3.0 ScrollTrigger in one of my websites everything is working fine but I want my animations to be reversed when leaving the section or div. I know there is a callback call onLeave but I am not able to figure out how to use it. I am new to the scroll trigger. I am pasting the code sample for you to understand.
armor animation config
let armor = gsap.timeline({
scrollTrigger: {
trigger: '.armor-animation',
pin: true,
pinSpacing: true,
anticipatePin: .5,
scrub: 1,
start: "top 150px",
end: "+=1500",
toggleActions: "play reverse none none",
// scroller: ".smooth-scroll"
// markers: true,
onLeave: () => {
// armor.from(".layer-1", .8, {
// translateY: 200,
// opacity: 0
// }, .5)
// console.log("leave");
}
}
});
armor section animation
armor.from(".layer-1", .8, {
translateX: -200,
opacity: 0
}, .5)
.from(".layer-2", .8, {
translateY: 200,
opacity: 0
}, .6)
.from(".layer-3", .8, {
translateY: -200,
opacity: 0
}, .6)
.from(".crack-effect", 2, {
translateY: -200,
opacity: 0
}, 2)
.from(".method h1", 2, {
translateX: 200,
opacity: 0
}, .6);

Barba js scroll position

I'm new to barba.js so just trying to get my head round it.
When a page transition is performed, my browser page scroll stays where it was. Is this intentional?
Is it possible to have it so after the transition the next page is loaded at the top like normal?
Here is my code
function pageTransition() {
var tl = gsap.timeline();
tl.to('ul.transition li', { duration: .5, scaleY: 1, transformOrigin: "top left", stagger: .2 })
tl.to('ul.transition li', { duration: .5, scaleY: 0, transformOrigin: "top left", stagger: .1, delay: .1})
}
function contentAnimation() {
var tl = gsap.timeline();
tl.from('.hero', { duration: 1, translateY: 50, opacity: 0 })
}
function delay(n){
n = n || 2000;
return new Promise(done => {
setTimeout(() => {
done();
}, n)
});
}
barba.init({
sync: true,
transitions: [{
async leave(data) {
const done = this.async();
pageTransition();
await delay(500);
done();
},
async enter(data) {
contentAnimation();
},
async once(data) {
contentAnimation();
}
}]
});

After checking through the docs again I found the hooks.
barba.hooks.enter(() => {
window.scrollTo(0, 0);
});
This solves the issue if anyone else is having the same issue.

How to scroll new page to top on load on click?

I'm using barba.js to fade new pages in. Code must be placed between the barba wrapper div. When I click a link to a new page though, the new page fades in at the same position as the previous page was in. So if the user clicks a link, the new page is loading in near , which I don't want.
How can I get the new page to load in at the top?
I found the answer on stack about scrollRestoration function but I still don't understand how to make this work.
Could somebody help me to compile the js code below, add some css or html to fix this issue?
$(window).scrollTop(0);
if ('scrollRestoration' in history) {
history.scrollRestoration = 'manual';
}
function delay(n) {
n = n || 2000;
return new Promise((done) => {
setTimeout(() => {
done();
}, n);
});
}
function pageTransition() {
var tl = gsap.timeline();
tl.to(".animate-this", {
duration: .2, opacity: 0, delay: 0, y: 30, //scale:0, delay: 0.2,
});
tl.to(".animate-this", {
duration: 0, opacity: 0, delay: 0, scale:0, //scale:0, delay: 0.2,
});
tl.fromTo(".loading-screen", {width: 0, left: 0}, {
duration: 1,
width: "100%",
left: "0%",
ease: "expo.inOut",
delay: 0.3,
});
tl.to("#svg-1", {
duration: 1, opacity: 0, y: 30, stagger: 0.4, delay: 0.2,
});
tl.to(".loading-screen", {
duration: 1,
width: "100%",
left: "100%",
ease: "expo.inOut",
delay: 0, //CHANGE TIME HERE END TRANS
});
tl.set(".loading-screen", { left: "-100%", });
tl.set("#svg-1", { opacity: 1, y: 0 });
}
function contentAnimation() {
var tl = gsap.timeline();
tl.from(".animate-this", { duration: .5, y: 30, opacity: 0, stagger: 0.4, delay: 0.2 });
}
$(function () {
barba.init({
sync: true,
transitions: [
{
async leave(data) {
const done = this.async();
pageTransition();
await delay(2500);
done();
},
async enter(data) {
contentAnimation();
},
async once(data) {
contentAnimation();
},
},
],
});
});
Have a look:
https://pasteboard.co/Ja33erZ.gif
Here also a codepen to check my issue (html,css):
https://codepen.io/cat999/project/editor/AEeEdg

scrollRestoration shouldn't be necessary, this can be done by resetting scroll position during the transition:
tl.fromTo(".loading-screen", {width: 0, left: 0}, {
duration: 1,
width: "100%",
left: "0%",
ease: "expo.inOut",
delay: 0.3,
onComplete: function() {
window.scrollTo(0, 0);
}
});
Working example here: https://codepen.io/durchanek/project/editor/ZWOyjE

This should be what you're looking for:
barba.hooks.enter(() => {
window.scrollTo(0, 0);
});
(can be found in the docs)

Wait function/tween to complete before starting another one

I use TweenMax to animate divs with multiples .mouseover but I'd like one to complete before starting another one.
In this JSFiddle, you can see the divs overlap if going to fast on the links.
Is there an easy solution for this ?
$(document).ready(function() {
var blocPrototypo = $("#wrap-image-menu");
$("#prototypo").mouseover(function() {
TweenLite.to(blocPrototypo, 1.4, {
backgroundColor: "#24d390",
ease: Circ.easeInOut
});
TweenMax.to(blocPrototypo, 0.5, {
width: "39vw",
ease: Circ.easeInOut,
repeat: 1,
yoyo: true
});
var allExcept = $(".all-img-menu").not(document.getElementById("img-prototypo"));
TweenMax.to(allExcept, 0.9, {
left: "0px",
opacity: 0
});
TweenMax.to($("#img-prototypo"), 0.7, {
opacity: "1",
width: "55vw",
left: "-90px",
ease: Expo.easeOut,
delay: "0.65"
});
TweenMax.to($("#line-pagination"), 0.5, {
width: "76px",
ease: Circ.easeInOut,
repeat: 1,
yoyo: true
});
$("#current-page").fadeOut(function() {
$(this).text("01").fadeIn(1000);
});
});
$("#esadvalence").mouseover(function() {
TweenLite.to(blocPrototypo, 1.5, {
backgroundColor: "#e12a1c",
ease: Power1.easeOut
});
TweenMax.to(blocPrototypo, 0.5, {
width: "39vw",
ease: Circ.easeInOut,
repeat: 1,
yoyo: true
});
var allExcept = $(".all-img-menu").not(document.getElementById("img-esadvalence"));
TweenMax.to(allExcept, 0.9, {
left: "0px",
opacity: 0
});
TweenMax.to($("#img-esadvalence"), 0.7, {
opacity: "1",
width: "55vw",
left: "-90px",
ease: Expo.easeOut,
delay: "0.65"
});
TweenMax.to($("#line-pagination"), 0.5, {
width: "76px",
ease: Circ.easeInOut,
repeat: 1,
yoyo: true
});
$("#current-page").fadeOut(function() {
$(this).text("02").fadeIn(1000);
});
});
});

TweenLite and TweenMax have onComplete callbacks that can be used to await completion prior to beginning the next operation:
TweenLite.to(blocPrototypo, 1.5, {
backgroundColor: "#e12a1c",
ease: Power1.easeOut,
onComplete: function() {
// perform next operation
}
});
There is also params you can pass via onCompleteParams, which you could perhaps use to indicate to some generic function the next operation you'd want to execute.
TweenLite.to(blocPrototypo, 1.5, {
backgroundColor: "#e12a1c",
ease: Power1.easeOut,
onCompleteParams: [{ prop1: value1, prop2: value2 }],
onComplete: function(someParams) {
// perform next operation using passed params
}
});
Another approach could be using Promise or jQuery Deferred in combination with the onComplete event callback such as:
function foo() {
return new Promise(function(resolve, reject) {
TweenLite.to(blocPrototypo, 1.5, {
backgroundColor: "#e12a1c",
ease: Power1.easeOut,
onComplete: function() {
return resolve(true);
}
});
});
}
foo().then(function() {
// perform next operation
});
Hopefully that helps!

GSAP staggerFrom negative delay

Question:
I am wondering if there is a way to add a negative delay to the staggerFrom / staggerTo functions in greensock?
Problem:
I have animation is running too long for my liking. It would be great if my staggered animations could happen as the previous animations are playing to cut down the duration.
Example:
I have put together this codepen to illustrate what I am after: http://codepen.io/nickspiel/pen/LpepvQ?editors=001
You can see in the codepen that I have used negative delays on the basic from timeline functions but this doesn't work for the staggerForm function as the delay parameter is used to delay each element of the jquery collection.

Have you tried to use the new cycle property introduced in the latest v1.18.0 of GSAP?
So you can cycle with delay but passing 0 as stagger value in the staggerTo calls.
Also, you can pass position parameter to staggerTo calls to make them overlap with the previously inserted tween.
Here is the forked pen for an idea.
JavaScript:
...
animateElement = function() {
timeline.from(main, 0.3, { scaleY: '0%', ease: Back.easeOut.config(1.7) })
.staggerFrom(dataBlocks, 0.3, { cycle: { delay: function(index) {
return index * 0.1;
}}, scale: '0%', y: 100, ease: Back.easeOut.config(1.7) }, 0)
.from(lineGraphLines, 1.5, { drawSVG: 0, ease: Power1.easeOut }, '-=0.5')
.from(lineGraphAreas, 1, { opacity: 0, ease: Back.easeOut.config(1.7) }, '-=2.0')
.staggerFrom(lineGraphDots, 0.2, { cycle: { delay: function(index) {
return index * 0.1;
}}, scale: 0, ease: Back.easeOut.config(1.7) }, 0, '-=1.0')
.staggerFrom(donutCharts, 0.6, { cycle: { delay: function(index) {
return index * 0.1;
}}, drawSVG: 0, ease: Power1.easeOut }, 0, '-=2.0')
.from(menuBackground, 0.3, { scaleX: '0%', ease: Back.easeOut.config(1.7) }, '-=6')
.staggerFrom(menuElements, 0.3, { cycle: { delay: function(index) {
return index * 0.1;
}}, scaleX: '0%', ease: Back.easeOut.config(1.7) }, 0, '-=1')
.from(headerBackground, 0.5, { scaleX: '0%', ease: Power1.easeOut }, '-=5.5')
.staggerFrom(headerBoxes, 0.3, { cycle: { delay: function(index) {
return index * 0.1;
}}, scale: '0%', ease: Back.easeOut.config(1.7) }, 0, '-=1.0')
.staggerFrom(headerText, 0.4, { cycle: { delay: function(index) {
return index * 0.1;
}}, scaleX: '0%', ease: Back.easeOut.config(1.7) }, 0, '-=1.0')
.from(headerText, 0.4, { scaleX: '0%', ease: Back.easeOut.config(1.7) }, '-=4');
};
...
This may not be exactly the type of animation you wanted but you'll need to adjust the position parameter in most/all of your tweens as per your liking but I think the main take away for you would be the use of cycle with delay.
Hope this helps in some way.
P.S. You can pass negative stagger values but they have a different meaning. It tells the engine to start the staggered animation from the last element.

I asked this same question on the Greensock GitHub repo and had the following response:
Absolutely - that's already baked in. I'm not sure if you're using
TweenMax or one of the timeline classes, so I'll show you both:
TweenMax.staggerTo(elements, 1, {x:100, delay:2}, 0.01);
// - OR -
var tl = new TimelineLite();
tl.staggerTo(elements, 1, {x:100, delay:2}, 0.01);
// - OR -
var tl = new TimelineLite();
tl.staggerTo(elements, 1, {x:100}, 0.01, "label+=3");
In my case the last option worked flawlessly.