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Opening new Part - getting current EPartService from static method [message #1797696]

Mon, 05 November 2018 11:28

Bartosz Szczypien

Messages: 11
Registered: January 2017

Junior Member

I decided to rewrite my app to pure e4 from 3.x where I had static RCPHelper with method:

public static ViewPart openNew(String pViewId, String pNewId)
{
		try {
			return PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().showView(pViewId, pViewId+pNewId, org.eclipse.ui.IWorkbenchPage.VIEW_ACTIVATE);
		} catch (PartInitException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
}

I tried with static BundleContext but EPartService is always NULL:

EPartService lService = (EPartService)Activator.context.getServiceReference(EPartService.class);
		MPart lPart = lService.showPart(pViewId, PartState.ACTIVATE);

Is it possible to implement something like that in e4 that would return MPart?

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Re: Opening new Part - getting current EPartService from static method [message #1797707 is a reply to message #1797696]

Mon, 05 November 2018 13:39

Brian de Alwis

Messages: 865
Registered: January 2012

Senior Member

The Part Service is a window-level E4 service, not an OSGi service. E4 Services are scoped or bound tied to different points in the windowing hierarchy. The E4 services are resolved using an Eclipse Context, and the root context actually does do OSGi Service lookups too.

So you need to find your current window and do something like:

Window window = ...;
if(window.getContext() == null) {
   // if window has not been realized
}
EPartService partService = window.getContext().get(EPartService.class);

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Re: Opening new Part - getting current EPartService from static method [message #1797871 is a reply to message #1797707]

Wed, 07 November 2018 17:08

Bartosz Szczypien

Messages: 11
Registered: January 2017

Junior Member

I have only one window, tried with something like this:

MApplication lApplication = E4Workbench.getServiceContext().get(MApplication.class);
MTrimmedWindow lWindow = (MTrimmedWindow) lApplication.getChildren().get(0);
if(lWindow.getContext() == null)
        System.err.println("NULL");

without success as getContext() returns always NULL

[Updated on: Wed, 07 November 2018 17:35]

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