1 /*
   2  * Copyright (c) 2018, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.swing.interop;
  27 
  28 import java.awt.dnd.peer.DropTargetContextPeer;
  29 import java.awt.dnd.DropTarget;
  30 import java.awt.dnd.DnDConstants;
  31 import java.awt.dnd.InvalidDnDOperationException;
  32 import java.awt.dnd.DropTargetContext;
  33 import java.awt.datatransfer.DataFlavor;
  34 import java.awt.datatransfer.Transferable;
  35 import sun.awt.AWTAccessor;
  36 
  37 /**
  38  * This class provides a wrapper over inner class DropTargetContextPeerProxy
  39  * which implements jdk internal java.awt.dnd.peer.DropTargetContextPeer interface
  40  * and provides APIs to be used by FX swing interop to access and use
  41  * DropTargetContextPeer APIs.
  42  */
  43 public abstract class DropTargetContextWrapper {
  44 
  45     private DropTargetContextPeerProxy dcp;     
  46     public DropTargetContextWrapper() {
  47         dcp = new DropTargetContextPeerProxy();
  48     }
  49 
  50     public void setDropTargetContext(DropTargetContext dtc,
  51                                          DropTargetContextWrapper dtcpw) {
  52         AWTAccessor.getDropTargetContextAccessor().
  53                     setDropTargetContextPeer(dtc, dtcpw.dcp);
  54     }
  55 
  56     public void reset(DropTargetContext dtc) {
  57         AWTAccessor.getDropTargetContextAccessor().reset(dtc);
  58     }
  59 
  60     public abstract void setTargetActions(int actions);
  61 
  62     public abstract int getTargetActions();
  63 
  64     public abstract DropTarget getDropTarget();
  65 
  66     public abstract DataFlavor[] getTransferDataFlavors();
  67 
  68     public abstract Transferable getTransferable() throws InvalidDnDOperationException;
  69 
  70     public abstract boolean isTransferableJVMLocal();
  71 
  72     public abstract void acceptDrag(int dragAction);
  73 
  74     public abstract void rejectDrag();
  75 
  76     public abstract void acceptDrop(int dropAction);
  77 
  78     public abstract void rejectDrop();
  79 
  80     public abstract void dropComplete(boolean success);
  81 
  82     private class DropTargetContextPeerProxy implements DropTargetContextPeer {
  83 
  84         public void setTargetActions(int actions) {
  85             DropTargetContextWrapper.this.setTargetActions(actions);
  86         }
  87 
  88         public int getTargetActions() {
  89             return DropTargetContextWrapper.this.getTargetActions();
  90         }
  91 
  92         public DropTarget getDropTarget() {
  93             return DropTargetContextWrapper.this.getDropTarget();
  94         }
  95 
  96         public DataFlavor[] getTransferDataFlavors() {
  97             return DropTargetContextWrapper.this.getTransferDataFlavors();
  98         }
  99 
 100         public Transferable getTransferable() throws InvalidDnDOperationException {
 101             return DropTargetContextWrapper.this.getTransferable();
 102         }
 103 
 104         public boolean isTransferableJVMLocal() {
 105             return DropTargetContextWrapper.this.isTransferableJVMLocal();
 106         }
 107 
 108         public void acceptDrag(int dragAction) {
 109             DropTargetContextWrapper.this.acceptDrag(dragAction);
 110         }
 111 
 112         public void rejectDrag() {
 113             DropTargetContextWrapper.this.rejectDrag();
 114         }
 115 
 116         public void acceptDrop(int dropAction) {
 117             DropTargetContextWrapper.this.acceptDrop(dropAction);
 118         }
 119 
 120         public void rejectDrop() {
 121             DropTargetContextWrapper.this.rejectDrop();
 122         }
 123 
 124         public void dropComplete(boolean success) {
 125             DropTargetContextWrapper.this.dropComplete(success);
 126         }
 127     }  
 128 }