Callback or custom event?

gistfile1.txt

Hey, I’m playing around with a multitouch gesture recognition API
for Mobile Safari. Now I’m wondering; would you prefer to define the 
event handler in a callback, like this:

recognize.tap(element, function() {
  log('Tapped');
});

Or would you prefer the recognizer to fire a custom event, like this:

recognize.tap(element);
element.bind('tap', function() {
  log('Tapped');
});

Which one do you like best? Why?

Event. Consistency.

I think firing an event is more "natural" as it fit's better with current models (tap is something that "happens" just like "click"). Also keeping track of event handlers is mostly done for you, with custom callbacks that's harder.

Event, feels right

Version 2. This way I can setup all my tap-able elements in my setup code and then bind / unbind my event handlers whenever I want without having the "recognize" module around.

@stravid, indeed: decoupling like this is easier to manage in the end.

Check out touch.js and gesture.js of Zepto

@mislav I’m familiar with Zepto but for anything but trivial multitouch support you can’t get away from having to define gesture recognizers.