/*

 * 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 com.apple.eawt;

import java.awt.*;

import java.lang.reflect.*;

import sun.lwawt.macosx.*;

import sun.lwawt.macosx.CImage.Creator;

class _AppDockIconHandler {

    private static native void nativeSetDockMenu(final long cmenu);

    private static native void nativeSetDockIconImage(final long image);

    private static native long nativeGetDockIconImage();

    private static native void nativeSetDockIconBadge(final String badge);

    PopupMenu fDockMenu = null;

    _AppDockIconHandler() { }

    public void setDockMenu(final PopupMenu menu) {

        fDockMenu = menu;

        // clear the menu if explicitly passed null

        if (menu == null) {

            nativeSetDockMenu(0);

            return;

        }

        // check if the menu needs a parent (8343136)

        final MenuContainer container = menu.getParent();

        if (container == null) {

            final MenuBar newParent = new MenuBar();

            newParent.add(menu);

            newParent.addNotify();

        }

        // instantiate the menu peer and set the native fDockMenu ivar

        menu.addNotify();

    }

    public PopupMenu getDockMenu() {

        return fDockMenu;

    }

    public void setDockIconImage(final Image image) {

        try {

            final CImage cImage = getCImageCreator().createFromImage(image);

            final long nsImagePtr = getNSImagePtrFrom(cImage);

            nativeSetDockIconImage(nsImagePtr);

        } catch (final Throwable e) {

            throw new RuntimeException(e);

        }

    }

    Image getDockIconImage() {

        try {

            final long dockNSImage = nativeGetDockIconImage();

            if (dockNSImage == 0) return null;

            return getCImageCreator().createImageUsingNativeSize(dockNSImage);

        } catch (final Throwable e) {

            throw new RuntimeException(e);

        }

    }

    void setDockIconBadge(final String badge) {

        nativeSetDockIconBadge(badge);

    }

    static Creator getCImageCreator() {

        try {

            final Method getCreatorMethod = CImage.class.getDeclaredMethod("getCreator", new Class<?>[] {});

            getCreatorMethod.setAccessible(true);

            return (Creator)getCreatorMethod.invoke(null, new Object[] {});

        } catch (final Throwable e) {

            throw new RuntimeException(e);

        }

    }

    static long getNSImagePtrFrom(final CImage cImage) {

        if (cImage == null) return 0;

        try {

            final Field cImagePtrField = CFRetainedResource.class.getDeclaredField("ptr");

            cImagePtrField.setAccessible(true);

            return cImagePtrField.getLong(cImage);

        } catch (final Throwable e) {

            throw new RuntimeException(e);

        }

    }

}