How to save and restore NSScrollView scroll position in Swift?

Question

In a macOS project I'm trying to get and set the scroll cursor position of a NSTableView the code seems to work because don't appairs errors but the cursor don't update.

   var clipOrigin = tableView.enclosingScrollView?.contentView.bounds.origin // get the position
   clipOrigin = CGPoint (x: 0.0, y: 3.0) // set a new position
   tableView.enclosingScrollView?.contentView.scroll(to: clipOrigin!) // set the new position

Am I forgetting something?

Answer 1

contentView.bounds.origin will almost certainly give you a point at 0,0 pretty much always as that's not the value you are expecting. bounds tell you an information about a position of the view which displays the canvas, not the inner offset of the scrolled document.

I guess one -documentRect or -documentVisibleRect properties contains the proper offset value you're looking for.