Ember Widgets Modal custom actions

application-controller.coffee

App.ApplicationController = Ember.Controller.extend
  actions:
    showModal: ->
      Ember.Widgets.ModalComponent.popup
        targetObject: this
        contentViewClass: 'App.SampleModalContentView'
        confirm: "modalConfirm"
        cancel: "modalCancel"
        maybeAction: "modalMaybe"

    modalConfirm: -> console.log("Modal Confirm!")

    modalCancel: -> console.log("Modal Cancel!")
    
    modalMaybe: -> console.log("Modal Maybe!")

modal-view.hbs

<button {{action 'sendConfirm'}}>Confirm</button>
<button {{action 'customAction' 'maybeAction'}}>Maybe</button>

modal.coffee

Ember.Widgets.ModalComponent.reopen
  actions:
    customAction: ->
      @sendAction.apply(@, arguments)