Little jQuery plugin for calling CSS3 animations and attaching callbacks to them

jquery.animateCss.plugin.js

// Generated by CoffeeScript 1.3.3
//
// animateCss jQuery Plugin by Charlie Hoey <charlie.hoey@gmail.com>
//
// DESCRIPTION: Apply a CSS3 animation class, and and a callback to fire
// when it's done.  Works well with animate.css (http://daneden.me/animate/)
// but custom css styles work just fine too.
//
// USAGE: $("#divID").animateCss({ startAnimation: "bounceOutRight", callback: function() { console.log("Done!"); });
//
// OPTIONS:
//   callback: callback function
//   startAnimation: name of class containing the desired CSS3 animation 

(function() {
  var $;

  $ = jQuery;

  $.fn.extend({
  
    animateCss: function(options) {
      
      var log, settings;
      
      settings = {
        startAnimation: 'shake',
        callback: false,
        forceBlock: true
      };
      
      settings = $.extend(settings, options);
      
      return this.each(function() {

        var obj;
        obj = this;
        obj.finished = false;

		// add our animation class, which also incidentally starts the animation
        $(obj).addClass("animated " + settings.startAnimation);
        
        // make sure our object is display: block
        if (!settings.forceBlock) {
          $(obj).css({
            'display': 'block'
          });
        }

		// bind our callback function to the webkit event
        return $(obj).bind("webkitAnimationEnd", function(event) {
        
    	  // remove our first animation, preparing us for more animations later
          $(obj).removeClass(settings.startAnimation);
          
          // if we have defined a callback function, call it
          if (settings.callback !== false) {
            return settings.callback();
          }
          
        });
        
      });
      
    }
    
  });
  
}).call(this);