/*
 * Copyright (c) 2004, 2014, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

import java.awt.*;
import java.awt.datatransfer.*;
import java.awt.dnd.*;

/*
 * @author Girish R (girish.ramachandran@sun.com)
 */

public class GUIXDnDJava extends Frame implements ClipboardOwner {

    Process process;
    volatile boolean framesVisible;
    final Clipboard selection = Toolkit.getDefaultToolkit().getSystemSelection();

    Object dropData = new String("");
    volatile boolean dragDropEnd, dropSuccess;
    int dropAction;
    DragSource ds;
    DragSourceListener dsl;
    DragGestureListener dgl;
    DropTargetListener dtl;
    static String data = "DragDropEnd TEST";


    public GUIXDnDJava() throws Exception {
        this.setSize(500, 300);
        this.setLocation(new Point(6, 200));
        this.setVisible(true);
        ds = DragSource.getDefaultDragSource();
        dsl = new DragSourceAdapter() {
            public void dragDropEnd(DragSourceDropEvent dsde) {
                dragDropEnd = true;
                dropSuccess = dsde.getDropSuccess();
                dropAction = dsde.getDropAction();

                System.out.println("getDropSuccess: " + dsde.getDropSuccess());
                System.out.println("getDropAction: " + dsde.getDropAction());
            }
        };

        dgl = dge -> {
            System.out.println("Drag gesture");
            dge.startDrag(null, new StringSelection(data), dsl);
        };

        ds.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY_OR_MOVE, dgl);
        dtl = new DropTargetAdapter() {
            public void drop(DropTargetDropEvent dtde) {
                System.out.println("Drop occured");
                dtde.acceptDrop(DnDConstants.ACTION_COPY);
                Transferable t = dtde.getTransferable();
                try {
                    dropData = t.getTransferData(DataFlavor.stringFlavor);
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
                dtde.dropComplete(true);
            }
        };
        new DropTarget(this, dtl);

        // Only a way to receive notification when the child is ready.
        selection.setContents(new StringSelection("Sun"), this);
    }

    public void startChild() throws Exception {
        String childName = "xdnd-child";

        Runtime runtime = Runtime.getRuntime();
        Process proc = runtime.exec("/bin/chmod u+x "+childName);
        proc.waitFor();

        //Run the native process and wait for it to get over
        process = Runtime.getRuntime().exec("./"+childName);
    }

    /**
     * This will be notified when the Native window comes up. Test starts here.
     */
    public void lostOwnership(Clipboard clipboard, Transferable contents) {
        this.framesVisible = true;
    }

    public void destroyProcess() {
        if (process != null)
            process.destroy();
    }
}