1 /*
2 * Copyright 1997-2007 Sun Microsystems, Inc. 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. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any 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 }
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