src/jdk.unsupported.desktop/share/classes/jdk/swing/interop/DragSourceContextWrapper.java
changeset 50656 362e45aeb983
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.unsupported.desktop/share/classes/jdk/swing/interop/DragSourceContextWrapper.java	Fri Jun 15 23:38:59 2018 +0530
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.swing.interop;
+
+import java.awt.Cursor;
+import java.awt.dnd.DragGestureEvent;
+import java.awt.dnd.DragSourceContext;
+import java.awt.dnd.peer.DragSourceContextPeer;
+import java.awt.datatransfer.Transferable;
+import java.awt.datatransfer.DataFlavor;
+import java.util.Map;
+import sun.awt.dnd.SunDragSourceContextPeer;
+
+/**
+ * This class provides a wrapper over inner DragSourceContextPeerProxy class
+ * which extends jdk internal sun.awt.dnd.SunDragSourceContextPeer class
+ * and provides APIs to be used by FX swing interop to access and use
+ * DragSourceContextPeer APIs.
+ *
+ * @since 11
+ */
+public abstract class DragSourceContextWrapper {
+    private DragSourceContextPeerProxy dsp;
+
+    public DragSourceContextWrapper(DragGestureEvent e) {
+        dsp = new DragSourceContextPeerProxy(e);
+    }
+
+    DragSourceContextPeer getPeer() {
+        return dsp;
+    }
+
+    public static int convertModifiersToDropAction(int modifiers,
+                                                   int supportedActions) {
+        return DragSourceContextPeerProxy.
+            convertModifiersToDropAction(modifiers, supportedActions);
+    }
+
+    protected abstract void setNativeCursor(Cursor c, int cType);
+
+    protected abstract void startDrag(Transferable trans, long[] formats,
+                                      Map<Long, DataFlavor> formatMap);
+
+    public abstract void startSecondaryEventLoop();
+
+    public abstract void quitSecondaryEventLoop();
+
+    public void dragDropFinished(final boolean success,
+                                 final int operations,
+                                 final int x, final int y) {
+        dsp.dragDropFinishedCall(success, operations, x, y);
+    }
+
+    public DragSourceContext getDragSourceContext() {
+        return dsp.getDragSourceContextCall();
+    }
+
+    private class DragSourceContextPeerProxy extends SunDragSourceContextPeer {
+
+        public DragSourceContextPeerProxy(DragGestureEvent e) {
+            super(e);
+        }
+
+        protected void startDrag(Transferable trans, long[] formats,
+                                 Map<Long, DataFlavor> formatMap) {
+            DragSourceContextWrapper.this.startDrag(trans, formats, formatMap);
+        }
+
+        protected void setNativeCursor(long nativeCtxt, Cursor c, int cType) {
+            DragSourceContextWrapper.this.setNativeCursor(c, cType);
+        }
+
+        public void startSecondaryEventLoop() {
+            DragSourceContextWrapper.this.startSecondaryEventLoop();
+        }
+
+        public void quitSecondaryEventLoop() {
+            DragSourceContextWrapper.this.quitSecondaryEventLoop();
+        }
+
+        protected void dragDropFinishedCall(final boolean success,
+                                 final int operations,
+                                 final int x, final int y) {
+            dragDropFinished(success, operations, x, y);
+        }
+
+        protected DragSourceContext getDragSourceContextCall() {
+            return getDragSourceContext();
+        }
+    }
+}