How to listen for user generated zoom in Google Maps?

Question

I want to know when a Google Maps zoom_changed event is fired specifically by a user interaction with the +/- zoom buttons. If I use a general event listener for zoom_changed,

Answer 1

I would suggest using a custom control for zoom in/out and then using event listeners on the custom congrol:

http://goo.gl/u8gKC

You can easily hide the default zoom control:

http://goo.gl/N5HIE

(zoomControl to be specific)