/*******************************************************************************
* Copyright (c) 2010, 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
* Lars Vogel <Lars.Vogel@gmail.com> - Bug 440893
******************************************************************************/
package org.eclipse.e4.ui.tests.application;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import javax.inject.Inject;
import javax.inject.Named;
import org.eclipse.e4.core.contexts.ContextFunction;
import org.eclipse.e4.core.contexts.ContextInjectionFactory;
import org.eclipse.e4.core.contexts.EclipseContextFactory;
import org.eclipse.e4.core.contexts.IEclipseContext;
import org.eclipse.e4.core.contexts.RunAndTrack;
import org.eclipse.e4.core.di.annotations.Optional;
import org.eclipse.e4.ui.services.IServiceConstants;
import org.junit.Test;
public class Bug308220Test {
static class WindowService {
Object activePart;
@Inject
public void setActivePart(
@Named(IServiceConstants.ACTIVE_PART) @Optional Object part) {
activePart = part;
}
}
@Test
public void testBug308220() throws Exception {
IEclipseContext app = EclipseContextFactory.create();
// lookup function that goes down the context's active child chain
app.set(IServiceConstants.ACTIVE_PART, new ContextFunction() {
@Override
public Object compute(IEclipseContext context, String contextKey) {
IEclipseContext childContext = context.getActiveChild();
if (childContext == null) {
return null;
}
while (childContext != null) {
context = childContext;
childContext = context.getActiveChild();
}
return context.getLocal(Object.class.getName());
}
});
app.runAndTrack(new RunAndTrack() {
@Override
public boolean changed(IEclipseContext context) {
// remove this line to pass the test
context.get(IServiceConstants.ACTIVE_PART);
return true;
}
});
// create two contexts
IEclipseContext windowA = app.createChild();
IEclipseContext windowB = app.createChild();
Object o1 = new Object();
Object o2 = new Object();
IEclipseContext part = windowA.createChild();
// set the active part as some object
part.set(Object.class.getName(), o1);
// construct the active chain
part.activate();
windowA.activate();
WindowService windowServiceA = ContextInjectionFactory
.make(WindowService.class, windowA);
WindowService windowServiceB = ContextInjectionFactory
.make(WindowService.class, windowB);
// windowA should have an active part, it was set earlier
assertEquals(o1, windowServiceA.activePart);
// windowB has no child contexts, this should be null
assertNull(windowServiceB.activePart);
// change the active part
part.set(Object.class.getName(), o2);
// windowA's active part should have changed
assertEquals(o2, windowServiceA.activePart);
// windowB should still have no active part
assertNull(windowServiceB.activePart);
}
}