/*******************************************************************************
* 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 440810
* Andrey Loskutov <loskutov@gmx.de> - Bug 372799
******************************************************************************/
package org.eclipse.ui.internal.handlers;
import org.eclipse.ui.IPartListener;
import org.eclipse.ui.IPropertyListener;
import org.eclipse.ui.ISaveablePart;
import org.eclipse.ui.ISources;
import org.eclipse.ui.IWindowListener;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.internal.SaveableHelper;
import org.eclipse.ui.internal.Workbench;
import org.eclipse.ui.services.IEvaluationService;
/**
* @since 3.7
*
*/
public class DirtyStateTracker implements IPartListener, IWindowListener, IPropertyListener {
private final IWorkbench workbench;
public DirtyStateTracker() {
workbench = Workbench.getInstance();
workbench.addWindowListener(this);
IWorkbenchWindow window = workbench.getActiveWorkbenchWindow();
register(window);
}
public void update() {
IEvaluationService service = workbench.getService(IEvaluationService.class);
service.requestEvaluation(ISources.ACTIVE_PART_NAME);
}
private void register(IWorkbenchWindow window) {
if (window == null) {
return;
}
window.getPartService().addPartListener(this);
}
@Override
public void partActivated(IWorkbenchPart part) {
if (SaveableHelper.isSaveable(part)) {
part.addPropertyListener(this);
}
}
@Override
public void partBroughtToTop(IWorkbenchPart part) {
}
@Override
public void partClosed(IWorkbenchPart part) {
if (SaveableHelper.isSaveable(part)) {
part.removePropertyListener(this);
update();
}
}
@Override
public void partDeactivated(IWorkbenchPart part) {
}
@Override
public void partOpened(IWorkbenchPart part) {
if (SaveableHelper.isSaveable(part)) {
part.addPropertyListener(this);
}
}
@Override
public void windowActivated(IWorkbenchWindow window) {
register(window);
}
@Override
public void windowDeactivated(IWorkbenchWindow window) {
}
@Override
public void windowClosed(IWorkbenchWindow window) {
window.getPartService().removePartListener(this);
}
@Override
public void windowOpened(IWorkbenchWindow window) {
register(window);
}
@Override
public void propertyChanged(Object source, int propID) {
if (SaveableHelper.isSaveable(source) && propID == ISaveablePart.PROP_DIRTY) {
update();
}
}
}