Is it possible to set push notifications to work only in wifi, rather than disabling them altogether?

I would like to use push notifications, but in a way that limits data usage if possible. Does anyone know if it's possible to set them to push when you're in wifi but then not to come when it would require data? Right now it looks like I would have to manually disable push notifications when I'm not in wifi and then turn them back on when I'm back in wifi. Anyone know a way to make them phone do that automatically?

Thanks for any help!