title: How can I implement gesture recognizers in OS X?
body: <p>I have done quite a bit with gesture recognizers for iOS, but I am now doing work in OS X, and I am lost.</p>
  
  <p>I want to duplicate the functionality that exists like in Finder where you can two-finger swipe (on your magic mouse) to go back/forward through a directory tree.</p>
  
  <p>I have an NSWindow based app that looks very similar to Finder. I have used apps before that allows you to build your own gesture recognizers so I know it is possible to do it, but I don't see any documentation on it.</p>
  
  <p>What do I need to do to implement these gestures? </p>