Package com.google.gwt.user.client

Class Event.NativePreviewEvent

java.lang.Object

com.google.web.bindery.event.shared.Event<Event.NativePreviewHandler>

com.google.gwt.event.shared.GwtEvent<Event.NativePreviewHandler>

com.google.gwt.user.client.Event.NativePreviewEvent

All Implemented Interfaces:

HasNativeEvent

Enclosing class:

Event

public static class Event.NativePreviewEvent
extends GwtEvent<Event.NativePreviewHandler>
implements HasNativeEvent

Represents a preview of a native Event.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.gwt.event.shared.GwtEvent

GwtEvent.Type<H>

Constructor Summary

Constructors

Constructor	Description
NativePreviewEvent()

Method Summary

Modifier and Type	Method	Description
void	cancel()	Cancel the native event and prevent it from firing.
void	consume()	Consume the native event and prevent it from being canceled, even if it has already been canceled by another handler.
protected void	dispatch(Event.NativePreviewHandler handler)	Should only be called by HandlerManager.
final GwtEvent.Type<Event.NativePreviewHandler>	getAssociatedType()	Returns the Event.Type used to register this event, allowing an EventBus to find handlers of the appropriate class.
NativeEvent	getNativeEvent()	Gets the underlying native event.
static GwtEvent.Type<Event.NativePreviewHandler>	getType()	Gets the type associated with this event.
final int	getTypeInt()	Gets the type int corresponding to the native event that triggered this preview.
boolean	isCanceled()	Has the event already been canceled? Note that isConsumed() will still return true if the native event has also been consumed.
boolean	isConsumed()	Has the native event been consumed? Note that isCanceled() will still return true if the native event has also been canceled.
boolean	isFirstHandler()	Is the current handler the first to preview this event?
protected void	revive()	Revives the event.

Methods inherited from class com.google.gwt.event.shared.GwtEvent

assertLive, getSource, isLive, kill

Methods inherited from class com.google.web.bindery.event.shared.Event

setSource, toDebugString, toString

Methods inherited from class java.lang.Object

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

Constructor Details

NativePreviewEvent

public NativePreviewEvent()

Method Details

getType

public static GwtEvent.Type<Event.NativePreviewHandler> getType()

Gets the type associated with this event.

Returns:

returns the handler type

cancel

public void cancel()

Cancel the native event and prevent it from firing. Note that the event can still fire if another handler calls consume(). Classes overriding this method should still call super.cancel().

consume

public void consume()

Consume the native event and prevent it from being canceled, even if it has already been canceled by another handler. Event.NativePreviewHandler that fire first have priority over later handlers, so all handlers should check if the event has already been canceled before calling this method.

getAssociatedType

public final GwtEvent.Type<Event.NativePreviewHandler> getAssociatedType()

Description copied from class: Event

Returns the Event.Type used to register this event, allowing an EventBus to find handlers of the appropriate class.

Specified by:

getAssociatedType in class GwtEvent<Event.NativePreviewHandler>

Returns:

the type

getNativeEvent

public NativeEvent getNativeEvent()

Description copied from interface: HasNativeEvent

Gets the underlying native event.

Specified by:

getNativeEvent in interface HasNativeEvent

Returns:

the native event

getTypeInt

public final int getTypeInt()

Gets the type int corresponding to the native event that triggered this preview.

Returns:

the type int associated with this native event

isCanceled

public boolean isCanceled()

Has the event already been canceled? Note that isConsumed() will still return true if the native event has also been consumed.

Returns:

true if the event has been canceled

See Also:

• cancel()

isConsumed

public boolean isConsumed()

Has the native event been consumed? Note that isCanceled() will still return true if the native event has also been canceled.

Returns:

true if the event has been consumed

See Also:

• consume()

isFirstHandler

public boolean isFirstHandler()

Is the current handler the first to preview this event?

Returns:

true if the current handler is the first to preview the event

dispatch

protected void dispatch(Event.NativePreviewHandler handler)

Description copied from class: GwtEvent

Should only be called by HandlerManager. In other words, do not use or call.

Specified by:

dispatch in class GwtEvent<Event.NativePreviewHandler>

Parameters:

handler - handler

See Also:

• EventBus.dispatchEvent(Event, Object)

revive

protected void revive()

Description copied from class: GwtEvent

Revives the event. Used when recycling event instances.

Overrides:

revive in class GwtEvent<Event.NativePreviewHandler>