com.google.gwt.activity.shared

Class AbstractActivity

java.lang.Object

com.google.gwt.activity.shared.AbstractActivity

All Implemented Interfaces:

Activity

public abstract class AbstractActivity
extends Object
implements Activity

Simple Activity implementation that is always willing to stop, and does nothing onStop and onCancel.

Constructor Summary

Constructors

Constructor and Description
AbstractActivity()

Method Summary

Modifier and Type	Method and Description
String	mayStop() Called when the user is trying to navigate away from this activity.
void	onCancel() Called when Activity.start(com.google.gwt.user.client.ui.AcceptsOneWidget, com.google.gwt.event.shared.EventBus) has not yet replied to its callback, but the user has lost interest.
void	onStop() Called when the Activity's widget has been removed from view.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Methods inherited from interface com.google.gwt.activity.shared.Activity

start

Constructor Detail

AbstractActivity

public AbstractActivity()

Method Detail

mayStop

public String mayStop()

Description copied from interface: Activity

Called when the user is trying to navigate away from this activity.

Specified by:

mayStop in interface Activity

Returns:

A message to display to the user, e.g. to warn of unsaved work, or null to say nothing

onCancel

public void onCancel()

Description copied from interface: Activity

Called when Activity.start(com.google.gwt.user.client.ui.AcceptsOneWidget, com.google.gwt.event.shared.EventBus) has not yet replied to its callback, but the user has lost interest.

Specified by:

onCancel in interface Activity

onStop

public void onStop()

Description copied from interface: Activity

Called when the Activity's widget has been removed from view. All event handlers it registered will have been removed before this method is called.

Specified by:

onStop in interface Activity