/*  Copyright (C) 2003-2011 JabRef contributors.
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 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 General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package net.sf.jabref;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.io.File;

import javax.swing.JFileChooser;
import javax.swing.JList;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.basic.BasicFileChooserUI;
import javax.swing.plaf.metal.MetalFileChooserUI;

//======================================================================
// this class is a work around for the problem with regular filechooser:
// single clicking will no longer put into edit mode
//======================================================================
public class JabRefFileChooser extends JFileChooser
{

    public JabRefFileChooser()
    {
        super();
    }

    public JabRefFileChooser(File file){
        super(file);
    }

    /*public int showOpenDialog(Component parent) throws HeadlessException {
        if (lastSize != null) {
            setSize(lastSize);
            System.out.println("Setting size: "+lastSize);
        }
        int answer = super.showOpenDialog(parent);
        lastSize = getSize();
        return answer;
    }*/

    /*public int showSaveDialog(Component parent) throws HeadlessException {
        if (lastSize != null) {
            setSize(lastSize);
            System.out.println("Setting size: "+lastSize);
        }
        int answer = super.showSaveDialog(parent);
        lastSize = getSize();
        return answer;
    }*/

    //========================================================
    //
    //========================================================

    protected void setUI(ComponentUI newUI) {
      if (Globals.osName.equals(Globals.MAC))
        super.setUI(newUI);
      else
        super.setUI(new JabRefUI(this));
     }
    //========================================================
    //
    //========================================================

    public static void main(String[] args) {
        JabRefFileChooser fc = new JabRefFileChooser();
        int returnVal = fc.showOpenDialog(null);
        if (returnVal == JFileChooser.APPROVE_OPTION) {
            fc.getSelectedFile();
        }
    }
}

class JabRefUI extends MetalFileChooserUI {
    public JabRefUI(JFileChooser filechooser) {
        super(filechooser);
    }
    protected class DoubleClickListener extends BasicFileChooserUI.DoubleClickListener {
        JList list;
        public DoubleClickListener(JList list) {
            super(list);
            this.list = list;
        }
        public void mouseEntered(MouseEvent e) {
            //System.out.println("mouse entered");
            MouseListener [] l = list.getMouseListeners();
            for (int i = 0; i < l.length; i++) {
                if (l[i] instanceof MetalFileChooserUI.SingleClickListener) {
                    list.removeMouseListener(l[i]);
                }
            }
            super.mouseEntered(e);
        }
    }
    protected MouseListener createDoubleClickListener(JFileChooser fc, JList list) {
        return new DoubleClickListener(list);
    }
}