| /******************************************************************************* |
| * Copyright (c) 2010, 2019 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * 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.E4PartWrapper; |
| 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(); |
| } else if (source instanceof E4PartWrapper && propID == ISaveablePart.PROP_DIRTY) { |
| update(); |
| } |
| } |
| |
| } |