public void GoBack()
{
// we discard current view and go to the history
_stack.Pop();
_output.Enqueue(_stack.Pop());
_menu.EnableNavigateBackButton(_stack.Count > 1);
}
public static void Wire(ISubscriber input, IMessageQueue output, INavigateBackView menu)
{
var adapter = new NavigateBackController(menu, output);
input.Subscribe <UI.NavigateCommand>(adapter);
menu.EnableNavigateBackButton(false);
menu.SubscribeToNavigateBack(adapter.GoBack);
}