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/*******************************************************************************
* Copyright (c) 2007, 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.ui.internal;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.eclipse.core.runtime.ListenerList;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.ISelectionListener;
import org.eclipse.ui.ISelectionService;
import org.eclipse.ui.services.IDisposable;
/**
* @since 3.4
*
*/
public class SlaveSelectionService implements ISelectionService, IDisposable {
private ListenerList postListeners = new ListenerList(ListenerList.IDENTITY);
private ListenerList listeners = new ListenerList(ListenerList.IDENTITY);
private Map listenersToPartId = new HashMap();
private Map postListenersToPartId = new HashMap();
private ISelectionService parentSelectionService;
/**
* @param parentSelectionService
*/
public SlaveSelectionService(ISelectionService parentSelectionService) {
if (parentSelectionService == null) {
throw new IllegalArgumentException(
"The parent selection service cannot be null"); //$NON-NLS-1$
}
this.parentSelectionService = parentSelectionService;
}
@Override
public void addPostSelectionListener(ISelectionListener listener) {
postListeners.add(listener);
parentSelectionService.addPostSelectionListener(listener);
}
@Override
public void addPostSelectionListener(String partId,
ISelectionListener listener) {
listenersToPartId.put(listener, partId);
parentSelectionService.addPostSelectionListener(partId, listener);
}
@Override
public void addSelectionListener(ISelectionListener listener) {
listeners.add(listener);
parentSelectionService.addSelectionListener(listener);
}
@Override
public void addSelectionListener(String partId, ISelectionListener listener) {
postListenersToPartId.put(listener, partId);
parentSelectionService.addPostSelectionListener(partId, listener);
}
@Override
public ISelection getSelection() {
return parentSelectionService.getSelection();
}
@Override
public ISelection getSelection(String partId) {
return parentSelectionService.getSelection(partId);
}
@Override
public void removePostSelectionListener(ISelectionListener listener) {
postListeners.remove(listener);
parentSelectionService.removePostSelectionListener(listener);
}
@Override
public void removePostSelectionListener(String partId,
ISelectionListener listener) {
postListenersToPartId.remove(listener);
parentSelectionService.removePostSelectionListener(partId, listener);
}
@Override
public void removeSelectionListener(ISelectionListener listener) {
listeners.remove(listener);
parentSelectionService.removeSelectionListener(listener);
}
@Override
public void removeSelectionListener(String partId,
ISelectionListener listener) {
listenersToPartId.remove(listener);
parentSelectionService.removeSelectionListener(partId, listener);
}
@Override
public void dispose() {
Object list[] = listeners.getListeners();
for (int i = 0; i < list.length; i++) {
parentSelectionService
.removeSelectionListener((ISelectionListener) list[i]);
}
listeners.clear();
list = postListeners.getListeners();
for (int i = 0; i < list.length; i++) {
parentSelectionService
.removePostSelectionListener((ISelectionListener) list[i]);
}
postListeners.clear();
Iterator i = listenersToPartId.keySet().iterator();
while (i.hasNext()) {
Object listener = i.next();
parentSelectionService.removeSelectionListener(
(String) listenersToPartId.get(listener),
(ISelectionListener) listener);
}
listenersToPartId.clear();
i = postListenersToPartId.keySet().iterator();
while (i.hasNext()) {
Object listener = i.next();
parentSelectionService.removePostSelectionListener(
(String) postListenersToPartId.get(listener),
(ISelectionListener) listener);
}
postListenersToPartId.clear();
}
}
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