js/libs/ember-1.5.1.js
function(view, eventName, evt) {
    if (view.has(eventName)) {
      // Handler should be able to re-dispatch events, so we don't
      // preventDefault or stopPropagation.
      return view.trigger(eventName, evt);
    } else {
      return true; // continue event propagation
    }
  }
function(view, eventName, evt) {
    if (view.has(eventName)) {
      // Handler should be able to re-dispatch events, so we don't
      // preventDefault or stopPropagation.
      return view.trigger(eventName, evt);
    } else {
      return true; // continue event propagation
    }
  }
Handle events from `Ember.EventDispatcher`