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/*
* Copyright (c) 2018, 2022, 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.
*
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package com.sun.javafx.embed.swing.newimpl;
import com.sun.javafx.PlatformUtil;
import com.sun.javafx.embed.swing.DisposerRecord;
import com.sun.javafx.embed.swing.FXDnD;
import com.sun.javafx.embed.swing.SwingCursors;
import com.sun.javafx.embed.swing.SwingNodeHelper;
import com.sun.javafx.scene.NodeHelper;
import com.sun.javafx.stage.WindowHelper;
import com.sun.javafx.util.Utils;
import java.awt.AWTEvent;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.dnd.DragGestureEvent;
import java.awt.dnd.DragGestureListener;
import java.awt.dnd.DragGestureRecognizer;
import java.awt.dnd.DragSource;
import java.awt.dnd.DropTarget;
import java.awt.dnd.InvalidDnDOperationException;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.WindowFocusListener;
import java.lang.ref.WeakReference;
import java.lang.reflect.Method;
import javafx.embed.swing.SwingNode;
import javafx.scene.Scene;
import javax.swing.JComponent;
import jdk.swing.interop.DragSourceContextWrapper;
import jdk.swing.interop.LightweightContentWrapper;
import jdk.swing.interop.LightweightFrameWrapper;
public class SwingNodeInteropN {
private volatile LightweightFrameWrapper lwFrame;
/**
* Calls LightweightFrameWrapper.notifyDisplayChanged.
* Must be called on EDT only.
*/
private static OptionalMethod jlfNotifyDisplayChanged;
private static Class lwFrameWrapperClass = null;
private static native void overrideNativeWindowHandle(Class lwFrameWrapperClass,
LightweightFrameWrapper lwFrame, long handle,
Runnable closeWindow);
static {
jlfNotifyDisplayChanged = new OptionalMethod<>(LightweightFrameWrapper.class,
"notifyDisplayChanged", Double.TYPE, Double.TYPE);
if (!jlfNotifyDisplayChanged.isSupported()) {
jlfNotifyDisplayChanged = new OptionalMethod<>(
LightweightFrameWrapper.class,"notifyDisplayChanged", Integer.TYPE);
}
try {
lwFrameWrapperClass = Class.forName("jdk.swing.interop.LightweightFrameWrapper");
} catch (Throwable t) {}
Utils.loadNativeSwingLibrary();
}
public LightweightFrameWrapper createLightweightFrame() {
lwFrame = new LightweightFrameWrapper();
return lwFrame;
}
public LightweightFrameWrapper getLightweightFrame() { return lwFrame; }
public MouseEvent createMouseEvent(Object frame,
int swingID, long swingWhen, int swingModifiers,
int relX, int relY, int absX, int absY,
int clickCount, boolean swingPopupTrigger,
int swingButton) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
return lwFrame.createMouseEvent(lwFrame, swingID,
swingWhen, swingModifiers, relX, relY, absX, absY,
clickCount, swingPopupTrigger, swingButton);
}
public MouseWheelEvent createMouseWheelEvent(Object frame,
int swingModifiers, int x, int y, int wheelRotation) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
return lwFrame.createMouseWheelEvent(lwFrame,
swingModifiers, x, y, wheelRotation);
}
public KeyEvent createKeyEvent(Object frame,
int swingID, long swingWhen,
int swingModifiers,
int swingKeyCode, char swingChar) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
return lwFrame.createKeyEvent(lwFrame, swingID,
swingWhen, swingModifiers, swingKeyCode,
swingChar);
}
public AWTEvent createUngrabEvent(Object frame) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
return lwFrame.createUngrabEvent(lwFrame);
}
public void overrideNativeWindowHandle(Object frame, long handle, Runnable closeWindow) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
overrideNativeWindowHandle(lwFrameWrapperClass, lwFrame, handle, closeWindow);
}
public void notifyDisplayChanged(Object frame, double scaleX, double scaleY) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
if (jlfNotifyDisplayChanged.isIntegerApi()) {
jlfNotifyDisplayChanged.invoke(lwFrame,
(int) Math.round(scaleX));
} else {
jlfNotifyDisplayChanged.invoke(lwFrame,
scaleX, scaleY);
}
}
public void setHostBounds(Object frame, int windowX, int windowY, int windowW, int windowH) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
jlfSetHostBounds.invoke(lwFrame, windowX, windowY, windowW, windowH);
}
public void setContent(Object frame, Object cnt) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
LightweightContentWrapper content = (LightweightContentWrapper)cnt;
lwFrame.setContent(content);
}
public void setVisible(Object frame, boolean visible) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
lwFrame.setVisible(visible);
}
public void setBounds(Object frame, int frameX, int frameY, int frameW, int frameH) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
lwFrame.setBounds(frameX, frameY, frameW, frameH);
}
public LightweightContentWrapper createSwingNodeContent(JComponent content, SwingNode node) {
return new SwingNodeContent(content, node);
}
public DisposerRecord createSwingNodeDisposer(Object frame) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
return new SwingNodeDisposer(lwFrame);
}
private static final class OptionalMethod {
private final Method method;
private final boolean isIntegerAPI;
OptionalMethod(Class cls, String name, Class... args) {
Method m;
try {
m = cls.getMethod(name, args);
} catch (NoSuchMethodException ignored) {
// This means we're running with older JDK, simply skip the call
m = null;
} catch (Throwable ex) {
throw new RuntimeException("Error when calling " + cls.getName() + ".getMethod('" + name + "').", ex);
}
method = m;
isIntegerAPI = args != null && args.length > 0 &&
args[0] == Integer.TYPE;
}
public boolean isSupported() {
return method != null;
}
public boolean isIntegerApi() {
return isIntegerAPI;
}
public Object invoke(T object, Object... args) {
if (method != null) {
try {
return method.invoke(object, args);
} catch (Throwable ex) {
throw new RuntimeException("Error when calling " + object.getClass().getName() + "." + method.getName() + "().", ex);
}
} else {
return null;
}
}
}
/**
* Calls LightweightFrameWrapper.setHostBounds.
* Must be called on EDT only.
*/
private static final OptionalMethod jlfSetHostBounds =
new OptionalMethod<>(LightweightFrameWrapper.class, "setHostBounds",
Integer.TYPE, Integer.TYPE, Integer.TYPE, Integer.TYPE);
public void emulateActivation(Object frame, boolean activate) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
lwFrame.emulateActivation(activate);
}
public void disposeFrame(Object frame) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
lwFrame.dispose();
}
public void addWindowFocusListener(Object frame, WindowFocusListener l) {
LightweightFrameWrapper lwFrame = (LightweightFrameWrapper)frame;
lwFrame.addWindowFocusListener(l);
}
private static class SwingNodeDisposer implements DisposerRecord {
LightweightFrameWrapper lwFrame;
SwingNodeDisposer(LightweightFrameWrapper ref) {
this.lwFrame = ref;
}
@Override
public void dispose() {
if (lwFrame != null) {
lwFrame.dispose();
lwFrame = null;
}
}
}
private static class SwingNodeContent extends LightweightContentWrapper {
private JComponent comp;
private volatile FXDnD dnd;
private WeakReference swingNodeRef;
SwingNodeContent(JComponent comp, SwingNode swingNode) {
this.comp = comp;
this.swingNodeRef = new WeakReference<>(swingNode);
}
@Override
public JComponent getComponent() {
return comp;
}
@Override
public void paintLock() {
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
SwingNodeHelper.getPaintLock(swingNode).lock();
}
}
@Override
public void paintUnlock() {
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
SwingNodeHelper.getPaintLock(swingNode).unlock();
}
}
@Override
public void imageBufferReset(int[] data, int x, int y, int width, int height, int linestride) {
imageBufferReset(data, x, y, width, height, linestride, 1);
}
//@Override
public void imageBufferReset(int[] data, int x, int y, int width, int height, int linestride, int scale) {
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
SwingNodeHelper.setImageBuffer(swingNode, data, x, y, width, height, linestride, scale, scale);
}
}
@Override
public void imageBufferReset(int[] data, int x, int y, int width, int height, int linestride, double scaleX, double scaleY) {
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
SwingNodeHelper.setImageBuffer(swingNode, data, x, y, width, height, linestride, scaleX, scaleY);
}
}
@Override
public void imageReshaped(int x, int y, int width, int height) {
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
SwingNodeHelper.setImageBounds(swingNode, x, y, width, height);
}
}
@Override
public void imageUpdated(int dirtyX, int dirtyY, int dirtyWidth, int dirtyHeight) {
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
SwingNodeHelper.repaintDirtyRegion(swingNode, dirtyX, dirtyY, dirtyWidth, dirtyHeight);
}
}
@Override
public void focusGrabbed() {
SwingNodeHelper.runOnFxThread(() -> {
// On X11 grab is limited to a single XDisplay connection,
// so we can't delegate it to another GUI toolkit.
if (PlatformUtil.isLinux()) return;
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
Scene scene = swingNode.getScene();
if (scene != null &&
scene.getWindow() != null &&
WindowHelper.getPeer(scene.getWindow()) != null) {
WindowHelper.getPeer(scene.getWindow()).grabFocus();
SwingNodeHelper.setGrabbed(swingNode, true);
}
}
});
}
@Override
public void focusUngrabbed() {
SwingNodeHelper.runOnFxThread(() -> {
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
Scene scene = swingNode.getScene();
SwingNodeHelper.ungrabFocus(swingNode, false);
}
});
}
@Override
public void preferredSizeChanged(final int width, final int height) {
SwingNodeHelper.runOnFxThread(() -> {
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
SwingNodeHelper.setSwingPrefWidth(swingNode, width);
SwingNodeHelper.setSwingPrefHeight(swingNode, height);
NodeHelper.notifyLayoutBoundsChanged(swingNode);
}
});
}
@Override
public void maximumSizeChanged(final int width, final int height) {
SwingNodeHelper.runOnFxThread(() -> {
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
SwingNodeHelper.setSwingMaxWidth(swingNode, width);
SwingNodeHelper.setSwingMaxHeight(swingNode, height);
NodeHelper.notifyLayoutBoundsChanged(swingNode);
}
});
}
@Override
public void minimumSizeChanged(final int width, final int height) {
SwingNodeHelper.runOnFxThread(() -> {
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
SwingNodeHelper.setSwingMinWidth(swingNode, width);
SwingNodeHelper.setSwingMinHeight(swingNode, height);
NodeHelper.notifyLayoutBoundsChanged(swingNode);
}
});
}
//@Override
public void setCursor(Cursor cursor) {
SwingNodeHelper.runOnFxThread(() -> {
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
swingNode.setCursor(SwingCursors.embedCursorToCursor(cursor));
}
});
}
private void initDnD() {
// This is a part of AWT API, so the method may be invoked on any thread
synchronized (SwingNodeContent.this) {
if (this.dnd == null) {
SwingNode swingNode = swingNodeRef.get();
if (swingNode != null) {
this.dnd = new FXDnD(swingNode);
}
}
}
}
@Override
public synchronized T createDragGestureRecognizer(
Class abstractRecognizerClass,
DragSource ds, Component c, int srcActions,
DragGestureListener dgl)
{
initDnD();
return dnd.createDragGestureRecognizer(abstractRecognizerClass, ds, c, srcActions, dgl);
}
@Override
public DragSourceContextWrapper createDragSourceContext(DragGestureEvent dge) throws InvalidDnDOperationException
{
initDnD();
return (DragSourceContextWrapper)dnd.createDragSourceContext(dge);
}
@Override
public void addDropTarget(DropTarget dt) {
initDnD();
dnd.addDropTarget(dt);
}
@Override
public void removeDropTarget(DropTarget dt) {
initDnD();
dnd.removeDropTarget(dt);
}
}
}
