A WindowController descendant that manages focus on the current page.
public class FocusController :
Public Class FocusController
If the current WindowController.Window is a PopupWindow and the FilterController.FullTextFilterAction Action is active, then the FocusController Controller focuses the Actions' control.
Otherwise, the control associated with an Action that has the ActionBase.ActionMeaning property set to Accept is focused. In addition, this Action is executed automatically when a user presses ENTER.