1 /* 2 * Copyright (c) 1997, 2014, 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 * @param actions the actions 48 */ 49 50 void setTargetActions(int actions); 51 52 /** 53 * get the current Target actions 54 * @return the current Target actions 55 */ 56 57 int getTargetActions(); 58 59 /** 60 * get the DropTarget associated with this peer 61 * @return the DropTarget associated with this peer 62 */ 63 64 DropTarget getDropTarget(); 65 66 /** 67 * get the (remote) DataFlavors from the peer 68 * @return the (remote) DataFlavors from the peer 69 */ 70 71 DataFlavor[] getTransferDataFlavors(); 72 73 /** 74 * get an input stream to the remote data 75 * @return an input stream to the remote data 76 */ 77 78 Transferable getTransferable() throws InvalidDnDOperationException; 79 80 /** 81 * Return whether or not the DragSource Transferable is in the 82 * same JVM as the Target. 83 * @return if the DragSource Transferable is in the same JVM as the Target 84 */ 85 86 boolean isTransferableJVMLocal(); 87 88 /** 89 * accept the Drag 90 * @param dragAction the drag action 91 */ 92 93 void acceptDrag(int dragAction); 94 95 /** 96 * reject the Drag 97 */ 98 99 void rejectDrag(); 100 101 /** 102 * accept the Drop 103 * @param dropAction the drop action 104 */ 105 106 void acceptDrop(int dropAction); 107 108 /** 109 * reject the Drop 110 */ 111 112 void rejectDrop(); 113 114 /** 115 * signal complete 116 * @param success the signal 117 */ 118 119 void dropComplete(boolean success); 120 121 }