1 /*
   2  * Copyright (c) 1997, 2007, 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 java.awt.dnd.peer;
  27 
  28 import java.awt.datatransfer.DataFlavor;
  29 import java.awt.datatransfer.Transferable;
  30 import java.awt.dnd.DropTarget;
  31 import java.awt.dnd.InvalidDnDOperationException;
  32 
  33 /**
  34  * <p>
  35  * This interface is exposed by the underlying window system platform to
  36  * enable control of platform DnD operations
  37  * </p>
  38  *
  39  * @since 1.2
  40  *
  41  */
  42 
  43 public interface DropTargetContextPeer {
  44 
  45     /**
  46      * update the peer's notion of the Target's actions
  47      */
  48 
  49     void setTargetActions(int actions);
  50 
  51     /**
  52      * get the current Target actions
  53      */
  54 
  55     int getTargetActions();
  56 
  57     /**
  58      * get the DropTarget associated with this peer
  59      */
  60 
  61     DropTarget getDropTarget();
  62 
  63     /**
  64      * get the (remote) DataFlavors from the peer
  65      */
  66 
  67     DataFlavor[] getTransferDataFlavors();
  68 
  69     /**
  70      * get an input stream to the remote data
  71      */
  72 
  73     Transferable getTransferable() throws InvalidDnDOperationException;
  74 
  75     /**
  76      * @return if the DragSource Transferable is in the same JVM as the Target
  77      */
  78 
  79     boolean isTransferableJVMLocal();
  80 
  81     /**
  82      * accept the Drag
  83      */
  84 
  85     void acceptDrag(int dragAction);
  86 
  87     /**
  88      * reject the Drag
  89      */
  90 
  91     void rejectDrag();
  92 
  93     /**
  94      * accept the Drop
  95      */
  96 
  97     void acceptDrop(int dropAction);
  98 
  99     /**
 100      * reject the Drop
 101      */
 102 
 103     void rejectDrop();
 104 
 105     /**
 106      * signal complete
 107      */
 108 
 109     void dropComplete(boolean success);
 110 
 111 }