/*
    This file is part of RouteConverter.

    RouteConverter 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.

    RouteConverter 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 RouteConverter; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Copyright (C) 2007 Christian Pesch. All Rights Reserved.
*/

package slash.navigation.converter.gui;

import slash.navigation.converter.gui.panels.ConvertPanel;

import javax.swing.*;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.File;
import java.io.IOException;
import java.util.List;

/**
 * The convert panel of the route converter user interface when
 * running under Java 6.
 *
 * @author Christian Pesch
 */

class ConvertPanel6 extends ConvertPanel {

    protected void addDragAndDrop() {
        convertPanel.setTransferHandler(new PanelDropHandler());
    }

    private class PanelDropHandler extends TransferHandler {
        public boolean canImport(TransferSupport support) {
            return support.isDataFlavorSupported(DataFlavor.javaFileListFlavor) ||
                    support.isDataFlavorSupported(DataFlavor.stringFlavor);
        }

        public boolean importData(TransferSupport support) {
            Transferable t = support.getTransferable();
            try {
                if (support.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) {
                    Object data = t.getTransferData(DataFlavor.javaFileListFlavor);
                    if (data != null) {
                        List<File> files = (List<File>) data;
                        handleDrop(files);
                        return true;
                    }
                }

                if (support.isDataFlavorSupported(DataFlavor.stringFlavor)) {
                    Object data = t.getTransferData(DataFlavor.stringFlavor);
                    if (data != null) {
                        String url = (String) data;
                        handleDrop(url);
                        return true;
                    }
                }
            } catch (UnsupportedFlavorException e) {
                // intentionally left empty
            } catch (IOException e) {
                // intentionally left empty
            }
            return false;
        }
    }
}