| /******************************************************************************* |
| * Copyright (c) 2000, 2003 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.pde.internal.ui.editor; |
| |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.pde.core.IModelChangeProvider; |
| |
| /** |
| * @version 1.0 |
| * @author |
| */ |
| public class NullUndoManager implements IModelUndoManager { |
| |
| /* |
| * @see IModelUndoManager#connect(IModelChangeProvider) |
| */ |
| public void connect(IModelChangeProvider provider) { |
| } |
| |
| /* |
| * @see IModelUndoManager#disconnect(IModelChangeProvider) |
| */ |
| public void disconnect(IModelChangeProvider provider) { |
| } |
| |
| /* |
| * @see IModelUndoManager#isUndoable() |
| */ |
| public boolean isUndoable() { |
| return false; |
| } |
| |
| /* |
| * @see IModelUndoManager#isRedoable() |
| */ |
| public boolean isRedoable() { |
| return false; |
| } |
| |
| /* |
| * @see IModelUndoManager#undo() |
| */ |
| public void undo() { |
| } |
| |
| /* |
| * @see IModelUndoManager#redo() |
| */ |
| public void redo() { |
| } |
| |
| /* |
| * @see IModelUndoManager#setUndoLevelLimit(int) |
| */ |
| public void setUndoLevelLimit(int limit) { |
| } |
| |
| /* |
| * @see IModelUndoManager#setIgnoreChanges(boolean) |
| */ |
| public void setIgnoreChanges(boolean ignore) { |
| } |
| |
| public void setActions(IAction undoAction, IAction redoAction) { |
| if (undoAction!=null) undoAction.setEnabled(false); |
| if (redoAction!=null) redoAction.setEnabled(false); |
| } |
| } |