1 /*
   2  * Copyright (c) 2010, 2018, 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 com.sun.javafx.embed.swing;
  27 
  28 import java.awt.dnd.DropTargetDragEvent;
  29 import java.awt.dnd.DropTargetDropEvent;
  30 import java.util.Set;
  31 import com.sun.javafx.embed.EmbeddedSceneDSInterface;
  32 import com.sun.javafx.tk.Toolkit;
  33 import javafx.scene.input.TransferMode;
  34 
  35 /**
  36  * Drag source to deliver data from Swing environment to embedded FX scene.
  37  */
  38 final class SwingDragSource extends CachingTransferable implements EmbeddedSceneDSInterface {
  39 
  40     private int sourceActions;
  41 
  42     SwingDragSource() {
  43     }
  44 
  45     void updateContents(final DropTargetDragEvent e, boolean fetchData) {
  46         sourceActions = e.getSourceActions();
  47         updateData(e.getTransferable(), fetchData);
  48     }
  49 
  50     void updateContents(final DropTargetDropEvent e, boolean fetchData) {
  51         sourceActions = e.getSourceActions();
  52         updateData(e.getTransferable(), fetchData);
  53     }
  54 
  55     @Override
  56     public Set<TransferMode> getSupportedActions() {
  57         assert Toolkit.getToolkit().isFxUserThread();
  58         return SwingDnD.dropActionsToTransferModes(sourceActions);
  59     }
  60 
  61     @Override
  62     public void dragDropEnd(TransferMode performedAction) {
  63         throw new UnsupportedOperationException();
  64     }
  65 }