Make “scrollLeft” / “scrollTop” changes not trigger scroll event listener

Question

Currently my program is in a spot where it both listens for the user to scroll a certain element, but also, at times, automatically scrolls this element by itself. (Not a gr

Answer 1

All right, my final solution, building off of Shog9 (not my real code, but my approach):

var oldScrollLeft = element.scrollLeft;
element.scrollLeft = x;
if(element.scrollLeft != oldScrollLeft) {
  ignoreScrollEvents = true;
}

function onScroll() {
  if(!ignoreScrollEvents) performGreatActions();
  ignoreScrollEvents = false;
}

The if statement only sets the ignore flag when the scrollLeft value actually ends up changing, so cases like setting from 0 to 0 don't set the flag incorrectly.

Thanks, all!