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/*
 * Copyright (c) 2010, 2021, 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 com.sun.glass.ui.ios;

import com.sun.glass.ui.*;
import com.sun.glass.ui.CommonDialogs.ExtensionFilter;
import com.sun.glass.ui.CommonDialogs.FileChooserResult;

import java.io.File;
import java.nio.ByteBuffer;
import java.nio.IntBuffer;
import java.security.AccessController;
import java.security.PrivilegedAction;

public final class IosApplication extends Application {

    private static native void _initIDs(); // init IDs for java callbacks from native
    static {
        @SuppressWarnings("removal")
        var dummy = AccessController.doPrivileged((PrivilegedAction) () -> {
            Application.loadNativeLibrary();
            return null;
        });
        _initIDs();
    }

    /**
     * @inheritDoc
     */
    @Override
    protected void runLoop(final Runnable launchable) {
        ClassLoader ccl = IosApplication.class.getClassLoader();
        _runLoop(launchable, ccl);
    }
    private native void _runLoop(Runnable launchable, ClassLoader contextClassLoader);

    /**
     * @inheritDoc
     */
    @Override
    protected void finishTerminating() {
        setEventThread(null);
        super.finishTerminating();
    }

    // Called from the native code
    private void setEventThread() {
        setEventThread(Thread.currentThread());
    }

    /**
     * @inheritDoc
     */
    @Override
    public Window createWindow(Window owner, Screen screen, int styleMask) {
        return new IosWindow(owner, screen, styleMask);
    }

    /**
     * @inheritDoc
     */
    @Override
    public View createView() {
        return new IosView();
    }

    /**
     * @inheritDoc
     */
    @Override
    public Cursor createCursor(int type) {
        return new IosCursor(type);
    }

    /**
     * @inheritDoc
     * On iOS, there is no cursor.
     */
    @Override
    public Cursor createCursor(int x, int y, Pixels pixels) {
        return new IosCursor(x, y, pixels);
    }

    @Override
    protected void staticCursor_setVisible(boolean visible) { }

    @Override
    protected Size staticCursor_getBestSize(int width, int height) {
        return null;
    }

    /**
     * @inheritDoc
     */
    @Override
    public Pixels createPixels(int width, int height, ByteBuffer data) {
        return new IosPixels(width, height, data);
    }

    @Override
    public Pixels createPixels(int width, int height, ByteBuffer data, float scalex, float scaley) {
        return new IosPixels(width, height, data, scalex, scaley);
    }

    /**
     * @inheritDoc
     */
    @Override
    public Pixels createPixels(int width, int height, IntBuffer data) {
        return new IosPixels(width, height, data);
    }

    @Override
    public Pixels createPixels(int width, int height, IntBuffer data, float scalex, float scaley) {
        return new IosPixels(width, height, data, scalex, scaley);
    }

    @Override
    protected int staticPixels_getNativeFormat() {
        return 0;
    }

    /**
     * @inheritDoc
     */
    @Override
    public GlassRobot createRobot() {
        return new IosRobot();
    }

    @Override
    protected native double staticScreen_getVideoRefreshPeriod();

    @Override
    protected native Screen[] staticScreen_getScreens();

    /**
     * @inheritDoc
     */
    @Override
    public Timer createTimer(Runnable runnable) {
        return new IosTimer(runnable);
    }

    @Override
    protected int staticTimer_getMinPeriod() {
        return IosTimer.getMinPeriod_impl();
    }

    @Override
    protected int staticTimer_getMaxPeriod() {
        return IosTimer.getMaxPeriod_impl();
    }

    @Override
    protected FileChooserResult staticCommonDialogs_showFileChooser(Window owner, String folder, String filename, String title, int type, boolean multipleMode, ExtensionFilter[] extensionFilters, int defaultFilterIndex) {
        return new FileChooserResult();
    }

    @Override
    protected File staticCommonDialogs_showFolderChooser(Window owner, String folder, String title) {
        return null;
    }

    private native Object _enterNestedEventLoopImpl();
    private native void _leaveNestedEventLoopImpl(Object retValue);

    @Override
    protected Object _enterNestedEventLoop() {
        return _enterNestedEventLoopImpl();
    }

    @Override
    protected void _leaveNestedEventLoop(Object retValue) {
        _leaveNestedEventLoopImpl(retValue);
    }

    @Override
    protected long staticView_getMultiClickTime() {
        return IosView._getMultiClickTime();
    }

    @Override
    protected int staticView_getMultiClickMaxX() {
        return IosView._getMultiClickMaxX();
    }

    @Override
    protected int staticView_getMultiClickMaxY() {
        return IosView._getMultiClickMaxY();
    }

    @Override
    native protected void _invokeAndWait(Runnable runnable);

    @Override
    native protected void _invokeLater(Runnable runnable);

    @Override
    protected boolean _supportsTransparentWindows() {
        return true;
    }

    @Override protected boolean _supportsUnifiedWindows() {
        return false;
    }

    /**
     * Hides / Shows iOS status bar.
     * @param hidden
     */
    public native static void _setStatusBarHidden(boolean hidden);

    /**
     * Hides / Shows iOS status bar, possibly animating transition.
     * @param hidden
     * @param animation - 0 none, 1 fade, 2 slide
     */
    public native static void _setStatusBarHiddenWithAnimation(boolean hidden, int animation);

    /**
     * Adjust status bar orientation with animation. See iOS UIApplication developers
     * documentation for details.
     * @param interfaceOrientation
     * @param animated
     */
    public native static void _setStatusBarOrientationAnimated(int interfaceOrientation, boolean animated);

    /**
     * See iOS developers documentation. (UIApplication).
     * @param statusBarStyle
     * @param animated
     */
    public native static void _setStatusBarStyleAnimated(int statusBarStyle, boolean animated);

    /**
     * Status bar visibility getter.
     * @return true if hidden
     */
    public native static boolean _getStatusBarHidden();

    /**
     * See iOS developers documentation.
     */
    public native static int _getStatusBarStyle();

    /**
     * See iOS developers documentation.
     */
    public native static int _getStatusBarOrientation();

    @Override
    public boolean hasTouch() {
        return true;
    }

    @Override
    public boolean hasMultiTouch() {
        return true;
    }

    @Override
    protected native int _getKeyCodeForChar(char c);
}