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Difference between revisions of "Eclipse4/RCP/Event Model"
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− | E4AP uses a pub/sub approach to events. | + | {{caution|This page is a stub|This page is unfortunately incomplete}} |
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+ | E4AP uses a pub/sub approach to events. The material on [http://wiki.eclipse.org/E4/Event_Processing | Event Processing in E4] should be integrated here. | ||
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+ | Topics: | ||
+ | * UIEvents, the @UIEventTopic annotation | ||
+ | * IEventBroker | ||
FIXME: Pulled the following from the e4 image viewer demo, but it uses an OSGi EventAdmin directly rather than IEventBroker. | FIXME: Pulled the following from the e4 image viewer demo, but it uses an OSGi EventAdmin directly rather than IEventBroker. |
Revision as of 10:13, 26 April 2011
E4AP uses a pub/sub approach to events. The material on | Event Processing in E4 should be integrated here.
Topics:
* UIEvents, the @UIEventTopic annotation * IEventBroker
FIXME: Pulled the following from the e4 image viewer demo, but it uses an OSGi EventAdmin directly rather than IEventBroker.
Notification of an Event
Can we use @UIEventTopic(UIEvents.buildTopic(UIEvents.UIElement.TOPIC, UIEvents.UIElement.WIDGET)) ??
@Inject @Optional public void setInput(@UIEventTopic(Part.EVENT_NAME) PojoObject input) { ... }
Posting an Event
public class Part { final static public String EVENT_NAME = "org/eclipse/e4/demo/app/value"; @Inject private EventAdmin eventAdmin; @PostConstruct void init() { ... viewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { Object selected = ((StructuredSelection) event.getSelection()).getFirstElement(); if (eventAdmin != null) EventUtils.post(eventAdmin, EVENT_NAME, selected); } }); .... }