/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2011 by Rapid-I and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapid-i.com
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see http://www.gnu.org/licenses/.
 */
package com.rapidminer.gui.operatortree.actions;

import java.awt.KeyboardFocusManager;
import java.awt.event.ActionEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import javax.swing.Action;
import javax.swing.JComponent;

import com.rapidminer.gui.tools.ResourceAction;
/**
 * 
 * @author Simon Fischer
 */
public class CutCopyPasteAction extends ResourceAction {

	private static final long serialVersionUID = 1L;
	
	private JComponent focusOwner = null;
	
	public static final Action CUT_ACTION   = new CutCopyPasteAction("cut", "cut");
	public static final Action COPY_ACTION  = new CutCopyPasteAction("copy", "copy");
	public static final Action PASTE_ACTION = new CutCopyPasteAction("paste", "paste");
	
	private CutCopyPasteAction(String i18nKey, String action) {
		super(i18nKey);
		putValue(ACTION_COMMAND_KEY, action);
		KeyboardFocusManager manager = KeyboardFocusManager.getCurrentKeyboardFocusManager();
		manager.addPropertyChangeListener("permanentFocusOwner", new PropertyChangeListener() {			
			@Override
			public void propertyChange(PropertyChangeEvent evt) {
				Object o = evt.getNewValue();
				if (o instanceof JComponent) {
					focusOwner = (JComponent)o;
				} else {
					focusOwner = null;
				}
			}
		});
	}
	
	public void actionPerformed(ActionEvent e) {
		if (focusOwner == null)
			return;
		String action = e.getActionCommand();
		Action a = focusOwner.getActionMap().get(action);
		if (a != null) {
			a.actionPerformed(new ActionEvent(focusOwner,
					ActionEvent.ACTION_PERFORMED,
					null));
		}
	}
}