Detect if a scroll event is triggered manually in jQuery

Question

This question was already asked here a long time ago:

Detect jquery event trigger by user or call by code

But it has never been answered conclusively (or m

Answer 1

I don't know how well this works with touch screen devices but this works for me on desktop at least

$(window).on('mousewheel', function(){
    //code that will only fire on manual scroll input
});

$(window).scroll(function(){
    //code that will fire on both mouse scroll and code based scroll
});

I don't think there is a way to only target the animated scroll (the accepted answer didn't work for me).

UPDATE: Warning!

Unfortunately, 'mousewheel' doesn't seem to pick up on users who manually grab the scroll bar and drag it or users who use the scroll bar arrow buttons :(

This still works ok for touch screen devices as their swipes seem to count as mouse scrolls. This isn't a great solution for desktop users though.