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Annotatoin @UIEventHandler and @EventHandler [message #575656]

Fri, 07 May 2010 13:06

Artur Kronenberg

Messages: 159
Registered: August 2009

Senior Member

Hi,

I am playing around with the EclipseCon example of the e4 client.
So far I resolved all the errors and recreated the UI. I am able to start the client and see a basic UI however no images, since e.g. in the WebCamView the redraw method is never called because I had to remove the @UIEventHandler methods.

Apparently the @UIEventHandler and @EventHandler methods are gone. Is there a substitute for those annotations? A workaround maybe? Something I missed?

Thanks for any help.

Regards,
Artur

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Re: Annotatoin @UIEventHandler and @EventHandler [message #575685 is a reply to message #575656]

Fri, 07 May 2010 15:51

Oleg Besedin

Messages: 41
Registered: July 2009

Member

They mutated into @UIEventTopic and @EventTopic located in the
"org.eclipse.e4.core.di.extensions" bunde. A class that wants to receive an
event creates an optional injected value with @[UI]EventTopic; no special
method or interface is required.

The sender can either use EventAdmin directly or use helper methods on the
EventUtils class.

- Example of usage in the JUnits: InjectionEventTest
- Example of usage in the photo demo:
Receiver example: Location#setInput(@UIEventTopic)
Sender example: ExifTable: EventUtils.post()

There was a lot churn in this area; I hope this helps a bit.

Sincerely,
Oleg Besedin

"Artur Kronenberg" <addur737@yahoo.de> wrote in message
news:hs138h$df5$1@build.eclipse.org...
> Hi,
>
> I am playing around with the EclipseCon example of the e4 client. So far I
> resolved all the errors and recreated the UI. I am able to start the
> client and see a basic UI however no images, since e.g. in the WebCamView
> the redraw method is never called because I had to remove the
> @UIEventHandler methods.
>
> Apparently the @UIEventHandler and @EventHandler methods are gone. Is
> there a substitute for those annotations? A workaround maybe? Something I
> missed?
>
> Thanks for any help.
>
> Regards,
> Artur

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