8202199: Provide public, unsupported JDK API for JavaFX/Swing interop

Reviewed-by: prr, kcr, alanb, mchung

src/java.desktop/share/classes/module-info.java

@@ -108,7 +108,12 @@ module java.desktop {
     // qualified exports may be inserted at build time
     // see make/GensrcModuleInfo.gmk
     exports sun.awt to
-        jdk.accessibility;
+        jdk.accessibility,
+        jdk.unsupported.desktop;
+
+    exports java.awt.dnd.peer to jdk.unsupported.desktop;
+    exports sun.awt.dnd to jdk.unsupported.desktop;
+    exports sun.swing to jdk.unsupported.desktop;
 
     opens javax.swing.plaf.basic to
         jdk.jconsole;
@@ -131,6 +136,8 @@ module java.desktop {
     uses javax.sound.sampled.spi.FormatConversionProvider;
     uses javax.sound.sampled.spi.MixerProvider;
 
+    uses sun.swing.InteropProvider;
+
     provides sun.datatransfer.DesktopDatatransferService with
         sun.awt.datatransfer.DesktopDatatransferServiceImpl;
 

src/java.desktop/share/classes/sun/swing/InteropProvider.java

@@ -0,0 +1,29 @@
+/*
+ * 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 sun.swing;
+
+public interface InteropProvider {
+}

src/jdk.unsupported.desktop/share/classes/jdk/swing/interop/DispatcherWrapper.java

@@ -0,0 +1,75 @@
+/*
+ * 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.SecondaryLoop;
+import java.awt.EventQueue;
+import sun.awt.FwDispatcher;
+import sun.awt.AWTAccessor;
+
+/**
+ * This class provides a wrapper over inner class DispatcherProxy
+ * which implements jdk internal sun.awt.FwDispatcher interface
+ * and provides APIs to be used by FX swing interop to access and use
+ * FwDispatcher APIs.
+ *
+ * @since 11
+ */
+public abstract class DispatcherWrapper {
+    private DispatcherProxy fwd;
+
+    public DispatcherWrapper() {
+        fwd = new DispatcherProxy();
+    }
+
+    public abstract boolean isDispatchThread();
+
+    public abstract void scheduleDispatch(Runnable r);
+
+    public abstract SecondaryLoop createSecondaryLoop();
+
+    public static void setFwDispatcher(EventQueue eventQueue, DispatcherWrapper dispatcher) {
+        AWTAccessor.getEventQueueAccessor().setFwDispatcher(eventQueue, dispatcher.fwd);
+    }
+
+    private class DispatcherProxy implements FwDispatcher {
+
+        @Override
+        public boolean isDispatchThread() {
+            return DispatcherWrapper.this.isDispatchThread();
+        }
+
+        @Override
+        public void scheduleDispatch(Runnable r) {
+            DispatcherWrapper.this.scheduleDispatch(r);
+        }
+
+        @Override
+        public SecondaryLoop createSecondaryLoop() {
+            return DispatcherWrapper.this.createSecondaryLoop();
+        }
+    }
+}

src/jdk.unsupported.desktop/share/classes/jdk/swing/interop/DragSourceContextWrapper.java

@@ -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();
+        }
+    }
+}

src/jdk.unsupported.desktop/share/classes/jdk/swing/interop/DropTargetContextWrapper.java

@@ -0,0 +1,130 @@
+/*
+ * 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.dnd.peer.DropTargetContextPeer;
+import java.awt.dnd.DropTarget;
+import java.awt.dnd.InvalidDnDOperationException;
+import java.awt.dnd.DropTargetContext;
+import java.awt.datatransfer.DataFlavor;
+import java.awt.datatransfer.Transferable;
+import sun.awt.AWTAccessor;
+
+/**
+ * This class provides a wrapper over inner class DropTargetContextPeerProxy
+ * which implements jdk internal java.awt.dnd.peer.DropTargetContextPeer interface
+ * and provides APIs to be used by FX swing interop to access and use
+ * DropTargetContextPeer APIs.
+ *
+ * @since 11
+ */
+public abstract class DropTargetContextWrapper {
+
+    private DropTargetContextPeerProxy dcp;
+    public DropTargetContextWrapper() {
+        dcp = new DropTargetContextPeerProxy();
+    }
+
+    public void setDropTargetContext(DropTargetContext dtc,
+                                         DropTargetContextWrapper dtcpw) {
+        AWTAccessor.getDropTargetContextAccessor().
+                    setDropTargetContextPeer(dtc, dtcpw.dcp);
+    }
+
+    public void reset(DropTargetContext dtc) {
+        AWTAccessor.getDropTargetContextAccessor().reset(dtc);
+    }
+
+    public abstract void setTargetActions(int actions);
+
+    public abstract int getTargetActions();
+
+    public abstract DropTarget getDropTarget();
+
+    public abstract DataFlavor[] getTransferDataFlavors();
+
+    public abstract Transferable getTransferable() throws InvalidDnDOperationException;
+
+    public abstract boolean isTransferableJVMLocal();
+
+    public abstract void acceptDrag(int dragAction);
+
+    public abstract void rejectDrag();
+
+    public abstract void acceptDrop(int dropAction);
+
+    public abstract void rejectDrop();
+
+    public abstract void dropComplete(boolean success);
+
+    private class DropTargetContextPeerProxy implements DropTargetContextPeer {
+
+        public void setTargetActions(int actions) {
+            DropTargetContextWrapper.this.setTargetActions(actions);
+        }
+
+        public int getTargetActions() {
+            return DropTargetContextWrapper.this.getTargetActions();
+        }
+
+        public DropTarget getDropTarget() {
+            return DropTargetContextWrapper.this.getDropTarget();
+        }
+
+        public DataFlavor[] getTransferDataFlavors() {
+            return DropTargetContextWrapper.this.getTransferDataFlavors();
+        }
+
+        public Transferable getTransferable()
+                throws InvalidDnDOperationException {
+            return DropTargetContextWrapper.this.getTransferable();
+        }
+
+        public boolean isTransferableJVMLocal() {
+            return DropTargetContextWrapper.this.isTransferableJVMLocal();
+        }
+
+        public void acceptDrag(int dragAction) {
+            DropTargetContextWrapper.this.acceptDrag(dragAction);
+        }
+
+        public void rejectDrag() {
+            DropTargetContextWrapper.this.rejectDrag();
+        }
+
+        public void acceptDrop(int dropAction) {
+            DropTargetContextWrapper.this.acceptDrop(dropAction);
+        }
+
+        public void rejectDrop() {
+            DropTargetContextWrapper.this.rejectDrop();
+        }
+
+        public void dropComplete(boolean success) {
+            DropTargetContextWrapper.this.dropComplete(success);
+        }
+    }
+}

src/jdk.unsupported.desktop/share/classes/jdk/swing/interop/LightweightContentWrapper.java

@@ -0,0 +1,177 @@
+/*
+ * 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.Component;
+import java.awt.dnd.DragGestureRecognizer;
+import java.awt.dnd.DragGestureListener;
+import java.awt.dnd.DragSource;
+import java.awt.dnd.DragGestureEvent;
+import java.awt.dnd.InvalidDnDOperationException;
+import java.awt.dnd.peer.DragSourceContextPeer;
+import java.awt.dnd.DropTarget;
+import javax.swing.JComponent;
+import sun.swing.LightweightContent;
+
+/**
+ * This class provides a wrapper over inner LightweightContentProxy class
+ * which implements jdk internal sun.swing.LightweightContent interface
+ * and provides APIs to be used by FX swing interop to access and use
+ * LightweightContent APIs.
+ *
+ * @since 11
+ */
+public abstract class LightweightContentWrapper {
+    private LightweightContentProxy lwCnt;
+
+    public LightweightContentWrapper() {
+        lwCnt = new LightweightContentProxy();
+    }
+
+    LightweightContentProxy getContent() {
+        return lwCnt;
+    }
+
+    public abstract void imageBufferReset(int[] data, int x, int y, int width,
+                                          int height, int linestride);
+
+    public abstract void imageBufferReset(int[] data, int x, int y, int width,
+                                     int height,
+                                     int linestride, double scaleX,
+                                     double scaleY);
+
+    public abstract JComponent getComponent();
+
+    public abstract void paintLock();
+
+    public abstract void paintUnlock();
+
+    public abstract void imageReshaped(int x, int y, int width, int height);
+
+    public abstract void imageUpdated(int dirtyX, int dirtyY,int dirtyWidth,
+                                      int dirtyHeight);
+
+    public abstract void focusGrabbed();
+
+    public abstract void focusUngrabbed();
+
+    public abstract void preferredSizeChanged(int width, int height);
+
+    public abstract void maximumSizeChanged(int width, int height);
+
+    public abstract void minimumSizeChanged(int width, int height);
+
+    public abstract <T extends DragGestureRecognizer> T createDragGestureRecognizer(
+            Class<T> abstractRecognizerClass,
+            DragSource ds, Component c, int srcActions,
+            DragGestureListener dgl);
+
+    public abstract DragSourceContextWrapper createDragSourceContext(DragGestureEvent dge)
+                                            throws InvalidDnDOperationException;
+
+    public abstract void addDropTarget(DropTarget dt);
+
+    public abstract void removeDropTarget(DropTarget dt);
+
+    private class LightweightContentProxy implements LightweightContent {
+
+        public JComponent getComponent() {
+            return LightweightContentWrapper.this.getComponent();
+        }
+
+        public void paintLock() {
+            LightweightContentWrapper.this.paintLock();
+        }
+
+        public void paintUnlock() {
+            LightweightContentWrapper.this.paintUnlock();
+        }
+
+        public void imageBufferReset(int[] data, int x, int y, int width,
+                                     int height, int linestride) {
+            LightweightContentWrapper.this.imageBufferReset(data, x, y, width,
+                                     height, linestride);
+        }
+
+        public void imageBufferReset(int[] data, int x, int y, int width,
+                                     int height, int linestride, double scaleX,
+                                     double scaleY) {
+            LightweightContentWrapper.this.imageBufferReset(data, x, y, width,
+                                     height, linestride, scaleX, scaleY);
+        }
+
+        public void imageReshaped(int x, int y, int width, int height) {
+            LightweightContentWrapper.this.imageReshaped(x, y, width, height);
+        }
+
+        public void imageUpdated(int dirtyX, int dirtyY,int dirtyWidth, int dirtyHeight) {
+            LightweightContentWrapper.this.imageUpdated(dirtyX, dirtyY, dirtyWidth, dirtyHeight);
+        }
+
+        public void focusGrabbed() {
+            LightweightContentWrapper.this.focusGrabbed();
+        }
+
+        public void focusUngrabbed() {
+            LightweightContentWrapper.this.focusUngrabbed();
+        }
+
+        public void preferredSizeChanged(int width, int height) {
+            LightweightContentWrapper.this.preferredSizeChanged(width, height);
+        }
+
+        public void maximumSizeChanged(int width, int height) {
+            LightweightContentWrapper.this.maximumSizeChanged(width, height);
+        }
+
+        public void minimumSizeChanged(int width, int height) {
+            LightweightContentWrapper.this.minimumSizeChanged(width, height);
+        }
+
+        public <T extends DragGestureRecognizer> T createDragGestureRecognizer(
+            Class<T> abstractRecognizerClass,
+            DragSource ds, Component c, int srcActions,
+            DragGestureListener dgl) {
+            return LightweightContentWrapper.this.createDragGestureRecognizer(
+                          abstractRecognizerClass, ds, c, srcActions, dgl);
+        }
+
+        public DragSourceContextPeer createDragSourceContextPeer(DragGestureEvent dge)
+                        throws InvalidDnDOperationException {
+            DragSourceContextWrapper peerWrapper =
+                    LightweightContentWrapper.this.createDragSourceContext(dge);
+            return peerWrapper.getPeer();
+        }
+
+        public void addDropTarget(DropTarget dt) {
+            LightweightContentWrapper.this.addDropTarget(dt);
+        }
+
+        public void removeDropTarget(DropTarget dt) {
+            LightweightContentWrapper.this.removeDropTarget(dt);
+        }
+    }
+}

src/jdk.unsupported.desktop/share/classes/jdk/swing/interop/LightweightFrameWrapper.java

@@ -0,0 +1,162 @@
+/*
+ * 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.AWTEvent;
+import java.awt.Container;
+import java.awt.Component;
+import java.awt.event.WindowFocusListener;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseWheelEvent;
+import java.awt.event.KeyEvent;
+import sun.awt.LightweightFrame;
+import sun.awt.UngrabEvent;
+import sun.awt.AWTAccessor;
+import sun.swing.JLightweightFrame;
+
+/**
+ * This class wraps sun.swing.JLightweightFrame and implements
+ * APIs to be used by FX swing interop to access and use JLightweightFrame APIs.
+ *
+ * @since 11
+ */
+public class LightweightFrameWrapper {
+
+    JLightweightFrame lwFrame;
+
+    public LightweightFrameWrapper() {
+        lwFrame = new JLightweightFrame();
+    }
+
+    private JLightweightFrame getLightweightFrame() {
+        return lwFrame;
+    }
+
+    public void notifyDisplayChanged(final int scaleFactor) {
+        if (lwFrame != null) {
+            lwFrame.notifyDisplayChanged(scaleFactor, scaleFactor);
+        }
+    }
+
+    /**
+     * {@code overrideNativeWindowHandle()} is package private but
+     * part of the interface of this class. It supports providing a
+     * foreign native window handle (i.e. an FX window handle) to AWT,
+     * and as such is intended to be called via JNI code,
+     * not by Java code, so it is not public.
+     */
+    void overrideNativeWindowHandle(long handle, Runnable closeWindow) {
+        if (lwFrame != null) {
+            lwFrame.overrideNativeWindowHandle(handle, closeWindow);
+        }
+    }
+
+    public void setHostBounds(int x, int y, int w, int h) {
+        if (lwFrame != null) {
+            lwFrame.setHostBounds(x, y, w, h);
+        }
+    }
+
+    public void dispose() {
+        if (lwFrame != null) {
+            lwFrame.dispose();
+        }
+    }
+
+    public void addWindowFocusListener(WindowFocusListener listener) {
+        if (lwFrame != null) {
+            lwFrame.addWindowFocusListener(listener);
+        }
+    }
+
+    public void setVisible(boolean visible) {
+        if (lwFrame != null) {
+            lwFrame.setVisible(visible);
+        }
+    }
+
+    public void setBounds(int x, int y, int w, int h) {
+        if (lwFrame != null) {
+            lwFrame.setBounds(x, y, w, h);
+        }
+    }
+
+    public void setContent(final LightweightContentWrapper lwCntWrapper) {
+        if (lwFrame != null) {
+            lwFrame.setContent(lwCntWrapper.getContent());
+        }
+    }
+
+    public void emulateActivation(boolean activate) {
+        if (lwFrame != null) {
+            lwFrame.emulateActivation(activate);
+        }
+    }
+
+    public MouseEvent createMouseEvent(LightweightFrameWrapper lwFrame,
+                            int swingID, long swingWhen, int swingModifiers,
+                            int relX, int relY, int absX, int absY,
+                            int clickCount, boolean swingPopupTrigger,
+                            int swingButton) {
+        return new java.awt.event.MouseEvent(lwFrame.getLightweightFrame(),
+                                             swingID, swingWhen,
+                                             swingModifiers,
+                                             relX, relY, absX, absY, clickCount,
+                                             swingPopupTrigger, swingButton);
+    }
+
+    public MouseWheelEvent createMouseWheelEvent(LightweightFrameWrapper lwFrame,
+                            int swingModifiers, int x, int y, int wheelRotation) {
+        return  new MouseWheelEvent(lwFrame.getLightweightFrame(),
+                                    java.awt.event.MouseEvent.MOUSE_WHEEL,
+                                    System.currentTimeMillis(),
+                                    swingModifiers, x, y, 0, 0, 0, false,
+                                    MouseWheelEvent.WHEEL_UNIT_SCROLL, 1,
+                                    wheelRotation);
+    }
+
+    public KeyEvent createKeyEvent(LightweightFrameWrapper lwFrame,
+                                   int swingID, long swingWhen,
+                                   int swingModifiers,
+                                   int swingKeyCode, char swingChar) {
+        return new java.awt.event.KeyEvent(lwFrame.getLightweightFrame(),
+                       swingID, swingWhen, swingModifiers, swingKeyCode,
+                       swingChar);
+    }
+
+    public AWTEvent createUngrabEvent(LightweightFrameWrapper lwFrame) {
+        return new UngrabEvent(lwFrame.getLightweightFrame());
+    }
+
+    public Component findComponentAt(LightweightFrameWrapper cont, int x, int y, boolean ignoreEnabled) {
+        Container lwframe = cont.getLightweightFrame();
+        return AWTAccessor.getContainerAccessor().findComponentAt(lwframe, x, y, ignoreEnabled);
+    }
+
+    public boolean isCompEqual(Component c, LightweightFrameWrapper lwFrame) {
+        return c != lwFrame.getLightweightFrame();
+    }
+}

src/jdk.unsupported.desktop/share/classes/jdk/swing/interop/SwingInterOpUtils.java

@@ -0,0 +1,69 @@
+/*
+ * 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.Toolkit;
+import java.awt.Window;
+import java.awt.AWTEvent;
+import sun.awt.SunToolkit;
+import sun.awt.AppContext;
+import sun.awt.UngrabEvent;
+
+/**
+ * This class provides static utility methods to be used by FX swing interop
+ * to access and use jdk internal classes like SunToolkit, AppContext
+ * and UngrabEvent.
+ *
+ * @since 11
+ */
+public class SwingInterOpUtils {
+
+    public static void postEvent(Object target, java.awt.AWTEvent e) {
+        AppContext context = SunToolkit.targetToAppContext(target);
+        if (context != null) {
+            SunToolkit.postEvent(context, e);
+        }
+    }
+
+    public static void grab(Toolkit toolkit, Window window) {
+        if (toolkit instanceof SunToolkit) {
+            ((SunToolkit)toolkit).grab(window);
+        }
+    }
+
+    public static void ungrab(Toolkit toolkit, Window window) {
+        if (toolkit instanceof SunToolkit) {
+            ((SunToolkit)toolkit).ungrab(window);
+        }
+    }
+
+    public static boolean isUngrabEvent(AWTEvent e) {
+        return e instanceof UngrabEvent;
+    }
+
+    public static final int GRAB_EVENT_MASK = SunToolkit.GRAB_EVENT_MASK;
+
+}

src/jdk.unsupported.desktop/share/classes/jdk/swing/interop/internal/InteropProviderImpl.java

@@ -0,0 +1,34 @@
+/*
+ * 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.internal;
+
+import sun.swing.InteropProvider;
+
+/**
+ * @since 11
+ */
+public class InteropProviderImpl implements InteropProvider {
+}

src/jdk.unsupported.desktop/share/classes/module-info.java

@@ -0,0 +1,41 @@
+/*
+ * 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.
+ */
+/**
+ * This module is intended for use only by the javafx.swing module
+ * for the purpose of FX/Swing interop
+ *
+ * @since 11
+ */
+module jdk.unsupported.desktop {
+
+    requires transitive java.desktop;
+
+    exports jdk.swing.interop;
+
+    provides sun.swing.InteropProvider
+        with jdk.swing.interop.internal.InteropProviderImpl;
+
+}
+