/**
 * Copyright (c) 2011, 2014 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: 
 * 		Florian Pirchner - Initial implementation
 */
package org.eclipse.osbp.vaaclipse.addons.perspective;

import org.eclipse.e4.core.contexts.ContextFunction;
import org.eclipse.e4.core.contexts.ContextInjectionFactory;
import org.eclipse.e4.core.contexts.IContextFunction;
import org.eclipse.e4.core.contexts.IEclipseContext;
import org.osgi.service.component.annotations.Component;
import org.eclipse.osbp.vaaclipse.publicapi.perspective.IPerspectiveHandler;

/**
 * Use this class to obtain an instance of {@link IPerspectiveHandler}.
 */
@Component(service = IContextFunction.class, property = { "service.context.key=org.eclipse.osbp.vaaclipse.publicapi.perspective.IPerspectiveHandler" })
public class PerspectiveRegistryContextFunction extends ContextFunction {

	/* (non-Javadoc)
	 * @see org.eclipse.e4.core.contexts.ContextFunction#compute(org.eclipse.e4.core.contexts.IEclipseContext, java.lang.String)
	 */
	@Override
	public Object compute(IEclipseContext context, String contextKey) {
		PerspectiveHandler registry = ContextInjectionFactory.make(
				PerspectiveHandler.class, context);
		context.set(IPerspectiveHandler.class, registry);
		context.set(PerspectiveHandler.class, registry);
		return registry;
	}
}