org.eclipse.compare.internal.BaseCompareAction Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2000, 2011 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)
*/
@Override
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)
*/
@Override
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);
}