OnScroll only when moved by mouse or mousewheel

[Jonathan2]

Hello,

Im using a script to scroll the scrollbar on browser resize.

If there is no scrollbar and it is resized until there is a scrollbar it will be centered so I use a calculation like this:

scrollbar length / scroll bar divider

When it is centered the divider is 2.

Now I want to remember the relative scrollbar position when scrolling, for this I calculate the scroll bar divider onscroll, but the event also fires when the resize script is called.

I somehow only want the onscroll script to fire when the scrollbar is used by mouse or mousewheel.

 

 

[justsomeguy]

There's a wheel event:

https://developer.mozilla.org/en-US/docs/Web/API/Element/wheel_event

You may also want to consider using the arrow keys to scroll, and just grabbing the scrollbar and moving it.