ej.mwt

Class DesktopEventManagementPolicy

java.lang.Object

ej.mwt.DesktopEventManagementPolicy

All Implemented Interfaces:

EventHandler

public class DesktopEventManagementPolicy
extends Object
implements EventHandler

Dispatches the event received on a desktop to its children.

• Pointer events are grouped in sessions. A session starts when the pointer is pressed, and ends when the pointer is released.

  While no renderable consumes the events, they are sent to the renderable that is under the pointer (see Desktop.panelAt(int, int) and Panel.getWidgetAt(int, int)), then sent to all its parent hierarchy.

  Once a renderable has consumed an event, it will be the only one to receive the next events during the session.

• For other events, the events are sent to the focus owner (see Widget.hasFocus()), then sent to all its parent hierarchy while the event is not consumed.

Since:

2.0

Constructor Summary

Constructors

Constructor and Description
DesktopEventManagementPolicy(Desktop desktop) Creates a desktop event manager.

Method Summary

Modifier and Type	Method and Description
boolean	handleEvent(int event) Handles an event.

Methods inherited from class java.lang.Object

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

Constructor Detail

DesktopEventManagementPolicy

public DesktopEventManagementPolicy(Desktop desktop)

Creates a desktop event manager.

Parameters:

desktop - the desktop to dispatch in.

Method Detail

handleEvent

public boolean handleEvent(int event)

Description copied from interface: EventHandler

Handles an event.

Specified by:

handleEvent in interface EventHandler

Parameters:

event - the event to handle.

Returns:

true if the event is consumed, false otherwise.

See Also:

Event, DispatchHelper