| /******************************************************************************* |
| * Copyright (c) 2000, 2006 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 org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.ui.INullSelectionListener; |
| import org.eclipse.ui.IPageListener; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.IWorkbenchWindow; |
| |
| /** |
| * Provides part selection tracking for a part with a specific id |
| * in all pages of a specific workbench window. This tracker shields |
| * clients from a part opening and closing, and still provides selection |
| * notification/information even when the part is not active. |
| */ |
| public class WindowPartSelectionTracker extends AbstractPartSelectionTracker |
| implements IPageListener { |
| /** |
| * The window this selection tracker is working in |
| */ |
| private IWorkbenchWindow fWindow; |
| |
| /** |
| * Part selection listener. |
| */ |
| private final INullSelectionListener selListener = new INullSelectionListener() { |
| public void selectionChanged(IWorkbenchPart part, ISelection selection) { |
| fireSelection(part, selection); |
| } |
| }; |
| |
| /** |
| * Part post selection listener |
| */ |
| private final INullSelectionListener postSelListener = new INullSelectionListener() { |
| public void selectionChanged(IWorkbenchPart part, ISelection selection) { |
| firePostSelection(part, selection); |
| } |
| }; |
| |
| /** |
| * Constructs a new selection tracker for the given window and part id. |
| * |
| * @param window workbench window |
| * @param partId part identifier |
| */ |
| public WindowPartSelectionTracker(IWorkbenchWindow window, String partId) { |
| super(partId); |
| setWindow(window); |
| window.addPageListener(this); |
| IWorkbenchPage[] pages = window.getPages(); |
| for (int i = 0; i < pages.length; i++) { |
| pageOpened(pages[i]); |
| } |
| } |
| |
| /* |
| * @see IPageListener#pageActivated(IWorkbenchPage) |
| */ |
| public void pageActivated(IWorkbenchPage page) { |
| } |
| |
| /* |
| * @see IPageListener#pageClosed(IWorkbenchPage) |
| */ |
| public void pageClosed(IWorkbenchPage page) { |
| page.removeSelectionListener(getPartId(), selListener); |
| page.removePostSelectionListener(getPartId(), postSelListener); |
| } |
| |
| /* |
| * @see IPageListener#pageOpened(IWorkbenchPage) |
| */ |
| public void pageOpened(IWorkbenchPage page) { |
| page.addSelectionListener(getPartId(), selListener); |
| page.addPostSelectionListener(getPartId(), postSelListener); |
| } |
| |
| /** |
| * Sets the window this tracker is working in. |
| * |
| * @param window workbench window |
| */ |
| private void setWindow(IWorkbenchWindow window) { |
| fWindow = window; |
| } |
| |
| /** |
| * Returns the window this tracker is working in. |
| * |
| * @return workbench window |
| */ |
| protected IWorkbenchWindow getWindow() { |
| return fWindow; |
| } |
| |
| /** |
| * @see AbstractPartSelectionTracker#dispose() |
| */ |
| public void dispose() { |
| super.dispose(); |
| fWindow = null; |
| } |
| |
| /* |
| * @see AbstractPartSelectionTracker#getSelection() |
| */ |
| public ISelection getSelection() { |
| IWorkbenchPage page = getWindow().getActivePage(); |
| if (page != null) { |
| return page.getSelection(getPartId()); |
| } |
| return null; |
| } |
| } |