| /******************************************************************************* |
| * Copyright (c) 2008, 2013 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 |
| * Wind River - Pawel Piech - Fixed debug context service usage (Bug 258189) |
| *******************************************************************************/ |
| package org.eclipse.debug.internal.ui.views; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.ui.IWindowListener; |
| import org.eclipse.ui.IWorkbench; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.PlatformUI; |
| |
| /** |
| * Manages the view context services for each window. |
| * |
| * @since 3.2 |
| */ |
| public class ViewContextManager implements IWindowListener { |
| |
| /** |
| * Map of services |
| */ |
| private Map<IWorkbenchWindow, ViewContextService> fWindowToService = new HashMap<IWorkbenchWindow, ViewContextService>(); |
| |
| // singleton manager |
| private static ViewContextManager fgManager; |
| |
| /** |
| * Returns the singleton view context manager. |
| * |
| * @return view manager |
| */ |
| public static ViewContextManager getDefault() { |
| if (fgManager == null) { |
| fgManager = new ViewContextManager(); |
| } |
| return fgManager; |
| } |
| |
| |
| private ViewContextManager() { |
| IWorkbench workbench = PlatformUI.getWorkbench(); |
| IWorkbenchWindow[] workbenchWindows = workbench.getWorkbenchWindows(); |
| for (int i = 0; i < workbenchWindows.length; i++) { |
| IWorkbenchWindow window = workbenchWindows[i]; |
| windowOpened(window); |
| } |
| workbench.addWindowListener(this); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IWindowListener#windowActivated(org.eclipse.ui.IWorkbenchWindow) |
| */ |
| @Override |
| public void windowActivated(IWorkbenchWindow window) { |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IWindowListener#windowDeactivated(org.eclipse.ui.IWorkbenchWindow) |
| */ |
| @Override |
| public void windowDeactivated(IWorkbenchWindow window) { |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IWindowListener#windowClosed(org.eclipse.ui.IWorkbenchWindow) |
| */ |
| @Override |
| public void windowClosed(IWorkbenchWindow window) { |
| ViewContextService service = fWindowToService.get(window); |
| if (service != null) { |
| fWindowToService.remove(window); |
| service.dispose(); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IWindowListener#windowOpened(org.eclipse.ui.IWorkbenchWindow) |
| */ |
| @Override |
| public void windowOpened(IWorkbenchWindow window) { |
| ViewContextService service = fWindowToService.get(window); |
| if (service == null) { |
| service = new ViewContextService(window); |
| fWindowToService.put(window, service); |
| } |
| } |
| |
| /** |
| * Returns the service for the given window, or <code>null</code> if none. |
| * |
| * @param window |
| * @return view context service or <code>null</code> |
| */ |
| public ViewContextService getService(IWorkbenchWindow window) { |
| return fWindowToService.get(window); |
| } |
| |
| } |