How do you add context senstive menu to NSOutlineView (ie right click menu)

Question

How do you add the ability to right click on a row in an NSOutlineView so you can say delete an object or some other activity. (ie Like when you right click on a folder in t

Answer 1

Here is a Swift 2.0 example which uses a subclass and extends the default NSOutlineDelegate so you can define your menus in the delegate.

protocol MenuOutlineViewDelegate : NSOutlineViewDelegate {
    func outlineView(outlineView: NSOutlineView, menuForItem item: AnyObject) -> NSMenu?
}

class MenuOutlineView: NSOutlineView {

    override func menuForEvent(event: NSEvent) -> NSMenu? {
        let point = self.convertPoint(event.locationInWindow, fromView: nil)
        let row = self.rowAtPoint(point)
        let item = self.itemAtRow(row)

        if (item == nil) {
            return nil
        }

        return (self.delegate() as! MenuOutlineViewDelegate).outlineView(self, menuForItem: item!)
    }

}