I have simple Javascript code where I'm trying to make a script where Lottie animation may start when is in the viewport.
Now, this is not working.
Is there any solution to how I can start Lottie animation when is in the viewport?
Lottie animation has id jancovic and when is this element in viewport Lottie animation may start.
Already all is in if a statement is not changeable can't be the change I need to change only if the statement probably.
var jancovic = document.getElementById('jancovic'); var boundingJancovic = jancovic.getBoundingClientRect(); window.onscroll = function() { if (boundingJancovic.top >= 0 && boundingJancovic.left >= 0 && boundingJancovic.right <= window.innerWidth && boundingJancovic.bottom <= window.innerHeight) { var svgContainerJancovic = document.getElementById('jancovic'); var animItemJancovic = bodymovin.loadAnimation({ wrapper: svgContainerJancovic, animType: 'svg', loop: false, path: '/assets/anim/graphs/data.json' }); } }
I was just looking for the same thing. took me a good 30min plus
(and a coffee) to get this working, so i hope this helps anyone
<script>
// kickstat the animation - mine is a div with the id of "headerAnimation"
// which sits inside a div with an id of "header"
var headerAnimation = lottie.loadAnimation({
container: document.getElementById("headerAnimation"), // the dom element that will contain the animation
renderer: "svg",
loop: false,
autoplay: true,
path: "SOME_PATH_TO_FILE" // the path to the animation json
});
// "listen" & check when header is out of viewport
// (i set 50% = visible => threshold: 0.5 (to set))
const headerViewport = function() {
let options = {
root: null,
rootMargin: '0px',
threshold: 0.5
}
let observer = new IntersectionObserver(function(entries, observer) {
entries[0].isIntersecting === true ? headerAnimation.play() : headerAnimation.goToAndStop(0, 0);
}, options);
observer.observe(document.querySelector('#header'));
}
// on window load
window.onload = function() {
headerViewport();
}
</script>
btw
as far as i can see, its "lottie.loadAnination" and not bodymovin
i think that, that's the old way of writing it.
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