| /******************************************************************************* |
| * Copyright (c) 2000, 2010 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.gef; |
| |
| /** |
| * A specialization of Tool that is used by the |
| * {@link org.eclipse.gef.tools.SelectionTool} during a Mouse Drag. The |
| * <code>SelectionTool</code> obtains a <code>DragTracker</code> on mouse down, |
| * and forwards all input to that tracker until after the mouse is released. The |
| * SelectionTool also obtains DragTrackers in keyboard accessible ways. |
| */ |
| public interface DragTracker extends Tool { |
| |
| /** |
| * The <code>SelectionTool</code> supports keyboard accessible drags. In |
| * such scenarios it is up to the SelectionTool to interpret <i>commit</i> |
| * and <i>abort</i> keystrokes. Since the DragTracker cannot do this, this |
| * method is used to indicate that the User has committed the drag using the |
| * keyboard. Abort is not handled specially, and the DragTracker should |
| * peform the usual cleanup in its {@link Tool#deactivate()} method. |
| */ |
| void commitDrag(); |
| |
| } |
