Angular animation service (tested with 1.1.5, breaks in 1.2.0rc1)

gistfile1.js

(function() {
  'use strict';

  var app = angular.module('App');

  /**
   * Provide a means for hooking into view animation events
   */
  app.factory('transitionService', [function() {

    function TransitionHelper(type) {

      this.setup = function(element) {
        element.addClass(type + '-setup');
      };

      this.start = function(element, done) {

        function onTransitionEnd(event) {
          element.unbind('transitionend',       onTransitionEnd);
          element.unbind('webkitTransitionEnd', onTransitionEnd);
          element.unbind('oTransitionEnd',      onTransitionEnd);
          element.unbind('msTransitionEnd',     onTransitionEnd);
          element.removeClass(type + '-setup');
          element.removeClass(type + '-start');
          done();
        }

        element.bind('transitionend',       onTransitionEnd);
        element.bind('webkitTransitionEnd', onTransitionEnd);
        element.bind('oTransitionEnd',      onTransitionEnd);
        element.bind('msTransitionEnd',     onTransitionEnd);

        element.addClass(type + '-start');
      };
    }

    return {
      create: function(type) {
        return new TransitionHelper(type);
      }
    };
  }]);

  app.animation('view-enter', ['transitionService', function(transitionService) {
    return transitionService.create('view-enter');
  }]);

  app.animation('view-leave', ['transitionService', function(transitionService) {
    return transitionService.create('view-leave');
  }]);

})();