The ErrorManager throws a NameAlreadyRegisteredException when
an attempt is made
to register an ErrorListener or ErrorLogger with a name that has already
been used for registration.
This class provides an empty implementation of the NavigatedListener
interface.Listeners that are not interested in receiving
all the NavigatedEvents should subclass from
NavigatedAdapter and override appropriate methods.
NavigatedEvent is used by a Control to notify it's listener's
about the type and level of navigation change that occurs
when focus changes from control to another.
This class provides an empty implementation of the NavigatingListener
interface.Listeners that are not interested in receiving
all the NavigatingEvents should subclass from
NavigatingAdapter and override appropriate methods.
The NavigationBarButtonClickedException is thrown by
NavigationBarButtonClickedListeners when they wish to veto the
operation performed by the button click.