/**
* Copyright 2004-2016 Riccardo Solmi. All rights reserved.
* This file is part of the Whole Platform.
*
* The Whole Platform is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Whole Platform is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the Whole Platform. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whole.lang.ui.actions;
import java.util.Comparator;
import org.eclipse.jface.action.IAction;
/**
* @author Enrico Persiani
*/
public class ActionsComparator implements Comparator<IAction> {
private static class SingletonHolder {
private static final ActionsComparator instance = new ActionsComparator();
}
public static ActionsComparator instance() {
return SingletonHolder.instance;
}
public int compare(IAction a1, IAction a2) {
String a1Label = a1.getText();
String a2Label = a2.getText();
return a1Label == null ? (a2Label == null ? 0 : -1 ) :
(a2Label == null ? 1 : a1Label.compareTo(a2Label) ) ;
}
}