1 /*

     2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 import java.awt.*;

    25 import java.awt.datatransfer.DataFlavor;

    26 import java.awt.datatransfer.UnsupportedFlavorException;

    27 import java.awt.dnd.*;

    28 import java.awt.event.WindowAdapter;

    29 import java.awt.event.WindowEvent;

    30 import java.io.File;

    31 import java.io.IOException;

    32 

    33 class TargetFileListFrame extends Frame implements DropTargetListener {

    34 

    35     private List list = new List(URIListToFileListBetweenJVMsTest.VISIBLE_RAWS_IN_LIST);

    36     private int expectationTransferredFilesNumber;

    37 

    38     TargetFileListFrame(Point location, int expectationTransferredFilesNumber) {

    39         this.expectationTransferredFilesNumber = expectationTransferredFilesNumber;

    40         initGUI(location);

    41         setDropTarget(new DropTarget(list, DnDConstants.ACTION_COPY, this));

    42     }

    43 

    44     private void initGUI(Point location) {

    45         this.setLocation(location);

    46         this.addWindowListener(new WindowAdapter() {

    47             public void windowClosing(WindowEvent e) {

    48                 TargetFileListFrame.this.dispose();

    49             }

    50         });

    51         this.add(new Panel().add(list));

    52         this.pack();

    53         this.setVisible(true);

    54     }

    55 

    56     public void dragEnter(DropTargetDragEvent dtde) {

    57         if (dtde.getCurrentDataFlavorsAsList().contains(DataFlavor.javaFileListFlavor)) {

    58             dtde.acceptDrag(DnDConstants.ACTION_COPY);

    59         }

    60     }

    61 

    62     public void dragOver(DropTargetDragEvent dtde) {

    63         if (dtde.getCurrentDataFlavorsAsList().contains(DataFlavor.javaFileListFlavor)) {

    64             dtde.acceptDrag(DnDConstants.ACTION_COPY);

    65         }

    66     }

    67 

    68     public void dropActionChanged(DropTargetDragEvent dtde) {

    69         if (dtde.getCurrentDataFlavorsAsList().contains(DataFlavor.javaFileListFlavor)) {

    70             dtde.acceptDrag(DnDConstants.ACTION_COPY);

    71         }

    72     }

    73 

    74     public void dragExit(DropTargetEvent dte) {}

    75 

    76     public void drop(DropTargetDropEvent dtde) {

    77         list.removeAll();

    78         dtde.acceptDrop(DnDConstants.ACTION_COPY);

    79         java.util.List<File> fileList = extractListOfFiles(dtde);

    80         for (File file:fileList) {

    81             list.add(file.getName());

    82         }

    83 

    84         if (fileList.size() != expectationTransferredFilesNumber)

    85         {

    86             System.err.println("ERROR: Expected file number:"

    87                     + expectationTransferredFilesNumber

    88                     + "; Received file number: "

    89                     + fileList.size());

    90             TargetFileListFrame.this.dispose();

    91             System.exit(InterprocessMessages.WRONG_FILES_NUMBER_ON_TARGET);

    92         }

    93 

    94         TargetFileListFrame.this.dispose();

    95 

    96     }

    97 

    98     private java.util.List<File> extractListOfFiles(DropTargetDropEvent dtde) {

    99         java.util.List<File> fileList = null;

   100         try {

   101             fileList = (java.util.List<File>)dtde.getTransferable().getTransferData(DataFlavor.javaFileListFlavor);

   102         } catch (UnsupportedFlavorException | IOException e) {

   103             e.printStackTrace();

   104         }

   105         return fileList;

   106     }

   107 

   108     Point getDropTargetPoint() {

   109        return new Point((int)list.getLocationOnScreen().getX()+(list.getWidth()/2),

   110                         (int)list.getLocationOnScreen().getY()+(list.getHeight()/2));

   111     }

   112 }