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 * 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
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 */

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/**
 * 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);
        }
    }

    
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. /**
     * {@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();
    }
}