| /* |
| * Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package sun.awt.motif; |
| |
| import java.awt.datatransfer.DataFlavor; |
| import java.awt.datatransfer.UnsupportedFlavorException; |
| |
| import java.awt.dnd.DnDConstants; |
| import java.awt.dnd.InvalidDnDOperationException; |
| |
| import java.io.InputStream; |
| |
| import java.util.Map; |
| |
| import java.io.IOException; |
| import sun.awt.dnd.SunDropTargetContextPeer; |
| import sun.awt.SunToolkit; |
| |
| /** |
| * <p> |
| * The MDropTargetContextPeer class is the class responsible for handling |
| * the interaction between the Motif DnD system and Java. |
| * </p> |
| * |
| * @since JDK1.2 |
| * |
| */ |
| |
| final class MDropTargetContextPeer extends SunDropTargetContextPeer { |
| |
| private long nativeDropTransfer; |
| |
| long nativeDataAvailable = 0; |
| Object nativeData = null; |
| |
| /** |
| * create the peer |
| */ |
| |
| static MDropTargetContextPeer createMDropTargetContextPeer() { |
| return new MDropTargetContextPeer(); |
| } |
| |
| /** |
| * create the peer |
| */ |
| |
| private MDropTargetContextPeer() { |
| super(); |
| } |
| |
| protected Object getNativeData(long format) { |
| SunToolkit.awtLock(); |
| if (nativeDropTransfer == 0) { |
| nativeDropTransfer = startTransfer(getNativeDragContext(), |
| format); |
| } else { |
| addTransfer (nativeDropTransfer, format); |
| } |
| |
| for (nativeDataAvailable = 0; |
| format != nativeDataAvailable;) { |
| try { |
| SunToolkit.awtLockWait(); |
| } catch (Throwable e) { |
| e.printStackTrace(); |
| } |
| } |
| SunToolkit.awtUnlock(); |
| |
| return nativeData; |
| } |
| |
| /** |
| * signal drop complete |
| */ |
| |
| protected void doDropDone(boolean success, int dropAction, |
| boolean isLocal) { |
| dropDone(getNativeDragContext(), nativeDropTransfer, isLocal, |
| success, dropAction); |
| } |
| |
| /** |
| * notify transfer complete |
| */ |
| |
| private void newData(long format, String type, byte[] data) { |
| nativeDataAvailable = format; |
| nativeData = data; |
| |
| SunToolkit.awtLockNotifyAll(); |
| } |
| |
| /** |
| * notify transfer failed |
| */ |
| |
| private void transferFailed(long format) { |
| nativeDataAvailable = format; |
| nativeData = null; |
| |
| SunToolkit.awtLockNotifyAll(); |
| } |
| |
| /** |
| * schedule a native DnD transfer |
| */ |
| |
| private native long startTransfer(long nativeDragContext, long format); |
| |
| /** |
| * schedule a native DnD data transfer |
| */ |
| |
| private native void addTransfer(long nativeDropTransfer, long format); |
| |
| /** |
| * signal that drop is completed |
| */ |
| |
| private native void dropDone(long nativeDragContext, long nativeDropTransfer, |
| boolean localTx, boolean success, int dropAction); |
| } |