/*

 * 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

 */

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();

    }

}