src/java.desktop/unix/classes/sun/awt/X11/XDropTargetContextPeer.java

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   1 /*
   2  * Copyright (c) 2003, 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 sun.awt.X11;
  27 
  28 import java.awt.Component;
  29 import java.awt.peer.ComponentPeer;
  30 
  31 import java.io.IOException;
  32 
  33 import java.util.Iterator;
  34 

  35 import sun.util.logging.PlatformLogger;
  36 
  37 import sun.awt.AppContext;
  38 import sun.awt.SunToolkit;
  39 
  40 import sun.awt.dnd.SunDropTargetContextPeer;
  41 import sun.awt.dnd.SunDropTargetEvent;
  42 
  43 import sun.misc.Unsafe;
  44 
  45 /**
  46  * The XDropTargetContextPeer is the class responsible for handling
  47  * the interaction between the XDnD/Motif DnD subsystem and Java drop targets.
  48  *
  49  * @since 1.5
  50  */
  51 final class XDropTargetContextPeer extends SunDropTargetContextPeer {
  52     private static final PlatformLogger logger =
  53         PlatformLogger.getLogger("sun.awt.X11.xembed.xdnd.XDropTargetContextPeer");
  54 


 171             super.processExitMessage(event);
 172         }
 173     }
 174 
 175     protected void processMotionMessage(SunDropTargetEvent event,
 176                                         boolean operationChanged) {
 177         if (!processSunDropTargetEvent(event)) {
 178             super.processMotionMessage(event, operationChanged);
 179         }
 180     }
 181 
 182     protected void processDropMessage(SunDropTargetEvent event) {
 183         if (!processSunDropTargetEvent(event)) {
 184             super.processDropMessage(event);
 185         }
 186     }
 187 
 188     // If source is an XEmbedCanvasPeer, passes the event to it for processing and
 189     // return true if the event is forwarded to the XEmbed child.
 190     // Otherwise, does nothing and return false.
 191     @SuppressWarnings("deprecation")
 192     private boolean processSunDropTargetEvent(SunDropTargetEvent event) {
 193         Object source = event.getSource();
 194 
 195         if (source instanceof Component) {
 196             ComponentPeer peer = ((Component)source).getPeer();

 197             if (peer instanceof XEmbedCanvasPeer) {
 198                 XEmbedCanvasPeer xEmbedCanvasPeer = (XEmbedCanvasPeer)peer;
 199                 /* The native context is the pointer to the XClientMessageEvent
 200                    structure. */
 201                 long ctxt = getNativeDragContext();
 202 
 203                 if (logger.isLoggable(PlatformLogger.Level.FINER)) {
 204                     logger.finer("        processing " + event + " ctxt=" + ctxt +
 205                                  " consumed=" + event.isConsumed());
 206                 }
 207                 /* If the event is not consumed, pass it to the
 208                    XEmbedCanvasPeer for processing. */
 209                 if (!event.isConsumed()) {
 210                     // NOTE: ctxt can be zero at this point.
 211                     if (xEmbedCanvasPeer.processXEmbedDnDEvent(ctxt,
 212                                                                event.getID())) {
 213                         event.consume();
 214                         return true;
 215                     }
 216                 }


   1 /*
   2  * Copyright (c) 2003, 2015, 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 sun.awt.X11;
  27 
  28 import java.awt.Component;
  29 import java.awt.peer.ComponentPeer;
  30 
  31 import java.io.IOException;
  32 
  33 import java.util.Iterator;
  34 
  35 import sun.awt.AWTAccessor;
  36 import sun.util.logging.PlatformLogger;
  37 
  38 import sun.awt.AppContext;
  39 import sun.awt.SunToolkit;
  40 
  41 import sun.awt.dnd.SunDropTargetContextPeer;
  42 import sun.awt.dnd.SunDropTargetEvent;
  43 
  44 import sun.misc.Unsafe;
  45 
  46 /**
  47  * The XDropTargetContextPeer is the class responsible for handling
  48  * the interaction between the XDnD/Motif DnD subsystem and Java drop targets.
  49  *
  50  * @since 1.5
  51  */
  52 final class XDropTargetContextPeer extends SunDropTargetContextPeer {
  53     private static final PlatformLogger logger =
  54         PlatformLogger.getLogger("sun.awt.X11.xembed.xdnd.XDropTargetContextPeer");
  55 


 172             super.processExitMessage(event);
 173         }
 174     }
 175 
 176     protected void processMotionMessage(SunDropTargetEvent event,
 177                                         boolean operationChanged) {
 178         if (!processSunDropTargetEvent(event)) {
 179             super.processMotionMessage(event, operationChanged);
 180         }
 181     }
 182 
 183     protected void processDropMessage(SunDropTargetEvent event) {
 184         if (!processSunDropTargetEvent(event)) {
 185             super.processDropMessage(event);
 186         }
 187     }
 188 
 189     // If source is an XEmbedCanvasPeer, passes the event to it for processing and
 190     // return true if the event is forwarded to the XEmbed child.
 191     // Otherwise, does nothing and return false.

 192     private boolean processSunDropTargetEvent(SunDropTargetEvent event) {
 193         Object source = event.getSource();
 194 
 195         if (source instanceof Component) {
 196             Object peer = AWTAccessor.getComponentAccessor()
 197                                      .getPeer((Component) source);
 198             if (peer instanceof XEmbedCanvasPeer) {
 199                 XEmbedCanvasPeer xEmbedCanvasPeer = (XEmbedCanvasPeer)peer;
 200                 /* The native context is the pointer to the XClientMessageEvent
 201                    structure. */
 202                 long ctxt = getNativeDragContext();
 203 
 204                 if (logger.isLoggable(PlatformLogger.Level.FINER)) {
 205                     logger.finer("        processing " + event + " ctxt=" + ctxt +
 206                                  " consumed=" + event.isConsumed());
 207                 }
 208                 /* If the event is not consumed, pass it to the
 209                    XEmbedCanvasPeer for processing. */
 210                 if (!event.isConsumed()) {
 211                     // NOTE: ctxt can be zero at this point.
 212                     if (xEmbedCanvasPeer.processXEmbedDnDEvent(ctxt,
 213                                                                event.getID())) {
 214                         event.consume();
 215                         return true;
 216                     }
 217                 }