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A programmable, embedded web browser driver compatible with the Selenium WebDriver spec -- fast, headless, WebKit-based, 100% pure Java, and no browser dependencies

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/*
 * Copyright (c) 2010, 2014, 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.machinepublishers.glass.ui.monocle;

import com.machinepublishers.glass.ui.monocle.InputDeviceRegistry;
import com.machinepublishers.glass.ui.monocle.NativeCursor;
import com.machinepublishers.glass.ui.monocle.NativeScreen;
import com.machinepublishers.glass.ui.monocle.RunnableProcessor;

/** Abstract of a platform on which JavaFX can run. */
public abstract class NativePlatform {

    private static InputDeviceRegistry inputDeviceRegistry;
    private final RunnableProcessor runnableProcessor;
    private NativeCursor cursor;
    private NativeScreen screen;
//    protected AcceleratedScreen accScreen;

    protected NativePlatform() {
        runnableProcessor = new RunnableProcessor();
    }

    /**
     * Called once during JavaFX shutdown to release platform resources.
     */
    void shutdown() {
        runnableProcessor.shutdown();
        if (cursor != null) {
            cursor.shutdown();
        }
        if (screen != null) {
            screen.shutdown();
        }
    }

    /**
     * @return the RunnableProcessor used to post events to the JavaFX event queue.
     */
    RunnableProcessor getRunnableProcessor() {
        return runnableProcessor;
    }

    /**
     * @return the InputDeviceRegistry that maintains a list of input devices
     * for this platform.
     */
    synchronized InputDeviceRegistry getInputDeviceRegistry() {
        if (inputDeviceRegistry == null) {
            inputDeviceRegistry = createInputDeviceRegistry();
        }
        return inputDeviceRegistry;
    }

    /**
     * Creates the InputDeviceRegistry for this platform. Called once.
     *
     * @return a new InputDeviceRegistry
     */
    protected abstract InputDeviceRegistry createInputDeviceRegistry();

    /**
     * Creates the NativeCursor for this platform. Called once.
     *
     * @return a new NativeCursor
     */
    protected abstract NativeCursor createCursor();

    /** Obtains the singleton NativeCursor
     *
     * @return the NativeCursor
     */
    synchronized NativeCursor getCursor() {
        if (cursor == null) {
            cursor = createCursor();
        }
        return cursor;
    }

    /**
     * Creates the NativeScreen for this platform. Called once.
     *
     * @return a new NativeScreen
     */
    protected abstract NativeScreen createScreen();

    /**
     * Obtains the singleton NativeScreen
     *
     * @return the NativeScreen
     */
    synchronized NativeScreen getScreen() {
        if (screen == null) {
            screen = createScreen();
        }
        return screen;
    }

//    /**
//     * Gets the AcceleratedScreen for this platform
//     *
//     * @param attributes a sequence of pairs (GLAttibute, value)
//     * @return an AcceleratedScreen for rendering using OpenGL
//     * @throws GLException if no OpenGL surface could be created
//     * @throws UnsatisfiedLinkError if native graphics libraries could not be loaded for this platform.
//     */
//    public synchronized AcceleratedScreen getAcceleratedScreen(int[] attributes)
//            throws GLException, UnsatisfiedLinkError {
//        if (accScreen == null) {
//            accScreen = new AcceleratedScreen(attributes);
//        }
//        return accScreen;
//    }

}




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