/*******************************************************************************
* Copyright (c) 2009, 2015 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.e4.ui.services;
import java.util.Collections;
import java.util.Set;
import javax.annotation.PostConstruct;
import org.eclipse.core.commands.contexts.ContextManager;
import org.eclipse.e4.core.contexts.IEclipseContext;
import org.eclipse.e4.core.contexts.RunAndTrack;
import org.eclipse.e4.ui.internal.services.ActiveContextsFunction;
import org.eclipse.e4.ui.internal.services.ContextContextFunction;
/**
* @noinstantiate This class is not intended to be instantiated by clients.
* @noreference This class is not intended to be referenced by clients.
* @since 1.0
*/
public final class ContextServiceAddon {
@PostConstruct
public void init(IEclipseContext context) {
// global context service.
ContextManager manager = context.get(ContextManager.class);
if (manager == null) {
manager = new ContextManager();
context.set(ContextManager.class, manager);
}
context.set(EContextService.class.getName(), new ContextContextFunction());
context.set(IServiceConstants.ACTIVE_CONTEXTS, new ActiveContextsFunction());
context.runAndTrack(new RunAndTrack() {
@Override
public boolean changed(IEclipseContext context) {
ContextManager manager = context.get(ContextManager.class);
if (manager != null) {
Object s = context.get(IServiceConstants.ACTIVE_CONTEXTS);
if (s instanceof Set) {
manager.setActiveContextIds((Set<?>) s);
} else {
manager.setActiveContextIds(Collections.EMPTY_SET);
}
}
return true;
}
});
}
}