DropTargetContextPeer


1   /*
2    * @(#)DropTargetContextPeer.java   1.13 03/12/19
3    *
4    * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
5    * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6    */
7   
8   package java.awt.dnd.peer;
9   
10  import java.awt.Insets  ;
11  
12  import java.awt.datatransfer.DataFlavor  ;
13  import java.awt.datatransfer.Transferable  ;
14  import java.awt.datatransfer.UnsupportedFlavorException  ;
15  
16  import java.awt.dnd.DropTarget  ;
17  import java.awt.dnd.DropTargetContext  ;
18  import java.awt.dnd.InvalidDnDOperationException  ;
19  
20  import java.io.InputStream  ;
21  import java.io.IOException  ;
22  
23  /**
24   * <p>
25   * This interface is exposed by the underlying window system platform to 
26   * enable control of platform DnD operations
27   * </p>
28   *
29   * @version     1.13, 12/19/03
30   * @since 1.2
31   *
32   */
33  
34  public interface DropTargetContextPeer {
35  
36      /**
37       * update the peer's notion of the Target's actions
38       */
39  
40      void setTargetActions(int actions);
41  
42      /**
43       * get the current Target actions
44       */
45  
46      int getTargetActions();
47  
48      /**
49       * get the DropTarget associated with this peer
50       */
51  
52      DropTarget   getDropTarget();
53  
54      /**
55       * get the (remote) DataFlavors from the peer
56       */
57  
58      DataFlavor  [] getTransferDataFlavors();
59  
60      /**
61       * get an input stream to the remote data
62       */
63  
64      Transferable   getTransferable() throws InvalidDnDOperationException  ;
65  
66      /**
67       * @return if the DragSource Transferable is in the same JVM as the Target
68       */
69  
70      boolean isTransferableJVMLocal();
71  
72      /**
73       * accept the Drag
74       */
75  
76      void acceptDrag(int dragAction);
77  
78      /**
79       * reject the Drag
80       */
81  
82      void rejectDrag();
83  
84      /**
85       * accept the Drop
86       */
87  
88      void acceptDrop(int dropAction);
89  
90      /**
91       * reject the Drop
92       */
93  
94      void rejectDrop();
95  
96      /**
97       * signal complete
98       */
99  
100     void dropComplete(boolean success);
101 
102 }
103
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