Add a window selector

[fabiendv]

Scrolling works perfectly when using a single window.

However, if there is a <div> element scrolling in the middle of the page (a list with messages, max-height 200px, scrolling on y), the scrolling button won't be shown while you scroll inside the list of messages.

Is there a way to implement a window selector? So it can refer to the parent y-scroll instead of the window one?

[bartholomej]

Two years later... :)

Funny how these things go: I finally hit the exact use case you described myself and suddenly your "edge case" became my problem too.

Anyway, it's implemented now: a new [target] input lets you point the button at any nested scroll container instead of the window. Fully backwards compatible (if you don't pass a target, nothing changes).

So... after all this time, are you still around and interested in testing it? No pressure if you've long since moved on, retired, or solved it with a different library. I'd completely understand :)

Here is my solution: #147
If you'd like to try it out, just let me know and I'll publish a prerelease to npm so you can test it without building from source.

Thanks for the original report. Better late than never!