Cannot call parent method with callParent?

Hi,

I am having a problem with the following code:

Code:

my.Window = Ext.define(null, {
  'extend': 'Ext.window.Window',
  'cls': 'bb-window',
  'bodyCls': 'bb-window-body',
  'border': false,
  'initComponent': function () {
    this.callParent(arguments);
    this.setupListeners();
  }
});


my.Window.prototype.setupListeners = function () {
  // do stuff
};




my.FormWindow = Ext.define(null, {
  'extend': my.Window,
  'closeAction': 'destroy',
  'modal': true,
  'resizable': false,
  'layout': 'anchor',
  'initComponent': function () {
    this.callParent(arguments);
  }
}));


my.FormWindow.prototype.setupListeners = function() {
  this.callParent(arguments);
  // do something
};

In FormWindow I am trying to just add a couple listeners on top of the base class' listeners defined in the setupListeners method. I want something like this:

new my.FormWindow > my.FormWindow.initComponent > my.Window.initComponent > my.FormWindow.setupListeners > my.Window.setupListeners

But the last step is never called. Any thoughts?

Thanks!