Trigger animation on element visible

[andylacko]

Hello, it seems nice, but I have to know, if there is option animate element only after it appeared on screen. Didn't check the code properly, but didn't find any function enabling it in documentation.

something like this:
function isElementInViewport(el) {
var rect = el.getBoundingClientRect();

return rect.bottom > 0 &&
    rect.right > 0 &&
    rect.left < (window.innerWidth || document. documentElement.clientWidth) /*or $(window).width() */ &&
    rect.top < (window.innerHeight || document. documentElement.clientHeight) /*or $(window).height() */;

}

because I think it would be nice, because if it is not implemented, user usualy see only top animations, I created my lib, it is not so elaborated, so I was lucky to find yours, here is mine:

https://github.com/andylaci/animate-visible

It doesn't have callbacks, but delay does the job, you can take the best things from mine and improve yours ;)