org.eclipse.swt.events
Class HelpEvent

java.lang.Object
  Event
      org.eclipse.swt.events.TypedEvent
          org.eclipse.swt.events.HelpEvent

public final class HelpEvent

extends TypedEvent

Instances of this class are sent as a result of widgets gaining and losing focus.

IMPORTANT: All public static members of this class are not part of the RWT public API. They are marked public only so that they can be shared within the packages provided by RWT. They should never be accessed from application code.

Since:

1.3

See Also:

FocusListener, Serialized Form

Field Summary

static int

HELP_REQUESTED

Fields inherited from class org.eclipse.swt.events.TypedEvent

data, display, widget

Constructor Summary

HelpEvent(Event event)
Constructs a new instance of this class based on the information in the given untyped event.

HelpEvent(Widget source)
Constructs a new instance of this class.

Method Summary

static void	addListener(Adaptable adaptable, HelpListener listener)
protected boolean	allowProcessing()
protected void	dispatchToObserver(Object listener)
static Object[]	getListeners(Adaptable adaptable)
protected Class	getListenerType()
static boolean	hasListener(Adaptable adaptable)
static void	removeListener(Adaptable adaptable, HelpListener listener)

Methods inherited from class org.eclipse.swt.events.TypedEvent

executeNext, getSource, processEvent, processScheduledEvents, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

HELP_REQUESTED

public static final int HELP_REQUESTED

See Also:

Constant Field Values

Constructor Detail

HelpEvent

public HelpEvent(Event event)

Constructs a new instance of this class based on the information in the given untyped event.

Parameters:

event - the untyped event containing the information

HelpEvent

public HelpEvent(Widget source)

Constructs a new instance of this class.

IMPORTANT: This method is not part of the RWT public API. It is marked public only so that it can be shared within the packages provided by RWT. It should never be accessed from application code.

Method Detail

dispatchToObserver

protected void dispatchToObserver(Object listener)

Overrides:

dispatchToObserver in class TypedEvent

getListenerType

protected Class getListenerType()

Overrides:

getListenerType in class TypedEvent

allowProcessing

protected boolean allowProcessing()

Overrides:

allowProcessing in class TypedEvent

addListener

public static void addListener(Adaptable adaptable,
                               HelpListener listener)

removeListener

public static void removeListener(Adaptable adaptable,
                                  HelpListener listener)

hasListener

public static boolean hasListener(Adaptable adaptable)

getListeners

public static Object[] getListeners(Adaptable adaptable)