code: function() {
  
  		if (this._focus_acquired_listener) {
  			Lava.app.removeListener(this._focus_acquired_listener);
  			Lava.app.removeListener(this._focus_lost_listener);
  			Lava.Core.removeGlobalHandler(this._focus_listener);
  			Lava.Core.removeGlobalHandler(this._blur_listener);
  			this._focus_acquired_listener
  				= this._focused_element
  				= this._focus_target
  				= null;
  		}
  
  	}
docs: Stop listening to all focus-related events