| /******************************************************************************* |
| * Copyright (c) 2000, 2007 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; |
| |
| import java.util.EventListener; |
| |
| import org.eclipse.jface.viewers.ISelection; |
| |
| /** |
| * Interface for listening to selection changes. |
| * <p> |
| * This interface may be implemented by clients. |
| * </p> |
| * |
| * @since 1.0 |
| * @see ISelectionService#addSelectionListener(ISelectionListener) |
| * @see ISelectionService#addSelectionListener(String, ISelectionListener) |
| * @see org.eclipse.ui.INullSelectionListener |
| */ |
| public interface ISelectionListener extends EventListener { |
| /** |
| * Notifies this listener that the selection has changed. |
| * <p> |
| * This method is called when the selection changes from one to a |
| * <code>non-null</code> value, but not when the selection changes to |
| * <code>null</code>. If there is a requirement to be notified in the latter |
| * scenario, implement <code>INullSelectionListener</code>. The event will |
| * be posted through this method. |
| * </p> |
| * |
| * @param part the workbench part containing the selection |
| * @param selection the current selection. This may be <code>null</code> |
| * if <code>INullSelectionListener</code> is implemented. |
| */ |
| public void selectionChanged(IWorkbenchPart part, ISelection selection); |
| } |
