| /******************************************************************************* |
| * 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.compare.internal; |
| |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.ui.IActionDelegate; |
| |
| |
| public abstract class BaseCompareAction implements IActionDelegate { |
| |
| private ISelection fSelection; |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction) |
| */ |
| final public void run(IAction action) { |
| run(fSelection); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection) |
| */ |
| final public void selectionChanged(IAction action, ISelection selection) { |
| fSelection= selection; |
| if (action != null) |
| action.setEnabled(isEnabled(fSelection)); |
| } |
| |
| protected boolean isEnabled(ISelection selection) { |
| return false; |
| } |
| |
| abstract protected void run(ISelection selection); |
| } |
