How can I disable horizontal scrolling for an NSScrollView?

Question

I first tried disabled the scroll bar by setting:

scrollView!.hasHorizontalScroller = false

and that successfully worked, but I could still scroll from left to right by using my trackpad. Is there a way to ensure that horizontal scrolling is completely disabled for an NSScrollView object?

Answer 1

Even with a correct content size, I was still able to use two-finger gestures to scroll horizontally a bit before it snaps back into place. To fix this, you can set the elasticity:

scrollView.horizontalScrollElasticity = .None