/*

 * 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.

 *

 * 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.

 */

/*

import java.awt.*;

import java.lang.reflect.InvocationTargetException;

import java.awt.event.*;

import java.util.concurrent.CountDownLatch;

import java.util.concurrent.TimeUnit;

/*

 * Tests that type-ahead doesn't block program.

 */

public class FreezeTest

{

    static Frame f;

    static Button b;

    static Dialog d;

    static TextField tf;

    static CountDownLatch robotLatch = new CountDownLatch(1);

    static Robot robot;

    static int click_count = 100;

    static int deliver_count = 0;

    public static void main(String args[]) throws Exception {

        FreezeTest test = new FreezeTest();

        test.init();

        test.start();

    }

    public void init()

    {

        Toolkit.getDefaultToolkit().addAWTEventListener(new AWTEventListener() {

                public void eventDispatched(AWTEvent e) {

                    if (e instanceof KeyEvent){

                        deliver_count++;

                        System.err.println("key_event# "+deliver_count);

                    }

                    if (e instanceof InputEvent){

                        System.err.println(e.toString()+","+((InputEvent)e).getWhen());

                    }else{

                        System.err.println(e.toString());

                    }

                 }

            }, AWTEvent.KEY_EVENT_MASK | AWTEvent.FOCUS_EVENT_MASK);

        f = new Frame("frame");

        b = new Button("press");

        d = new Dialog(f, "dialog", true);

        tf = new TextField("");

        d.add(tf);

        d.pack();

        f.add(b);

        f.pack();

        b.addActionListener(new ActionListener() {

                public void actionPerformed(ActionEvent e) {

                    System.err.println(e.toString()+","+e.getWhen());

                    System.err.println("B pressed");

                    robotLatch.countDown();

                    EventQueue.invokeLater(new Runnable() {

                            public void run() {

                                waitTillShown(d);

                                FreezeTest.this.d.toFront();

                                FreezeTest.this.moveMouseOver(d);

                            }

                        });

                    d.setVisible(true);

                }

            });

    }//End  init()

    public void start () throws Exception

    {

        robot = new Robot();

        f.setVisible(true);

        waitTillShown(b);

        System.err.println("b is shown");

        f.toFront();

        moveMouseOver(f);

        robot.waitForIdle();

        makeFocused(b);

        robot.waitForIdle();

        System.err.println("b is focused");

        robot.keyPress(KeyEvent.VK_SPACE);

        robot.keyRelease(KeyEvent.VK_SPACE);

        boolean ok = robotLatch.await(1, TimeUnit.SECONDS);

        if(!ok) {

            throw new RuntimeException("Was B button pressed?");

        }

        for (int i = 0; i < click_count; i++){

            System.err.println("click# "+(i+1));

            robot.keyPress(KeyEvent.VK_SPACE);

            robot.delay(10);

            robot.keyRelease(KeyEvent.VK_SPACE);

            robot.delay(50);

        }

        robot.waitForIdle();

        int deliver_count = this.deliver_count;

        int expected_count = (click_count + 1) * 3;

        if (deliver_count != expected_count){

            System.err.println("deliver_count = "+deliver_count+" (!="+expected_count+")");

            throw new RuntimeException("incorrect behaviour");

        }

    }// start()

    private void moveMouseOver(Container c) {

        Point p = c.getLocationOnScreen();

        Dimension d = c.getSize();

        robot.mouseMove(p.x + (int)(d.getWidth()/2), p.y + (int)(d.getHeight()/2));

    }

    private void waitTillShown(Component c) {

        while (true) {

            try {

                Thread.sleep(100);

                c.getLocationOnScreen();

                break;

            } catch (InterruptedException ie) {

                ie.printStackTrace();

                break;

            } catch (Exception e) {

            }

        }

    }

    private void makeFocused(Component comp) {

        if (comp.isFocusOwner()) {

            return;

        }

        final Semaphore sema = new Semaphore();

        final FocusAdapter fa = new FocusAdapter() {

                public void focusGained(FocusEvent fe) {

                    sema.raise();

                }

            };

        comp.addFocusListener(fa);

        comp.requestFocusInWindow();

        if (comp.isFocusOwner()) {

            return;

        }

        try {

            sema.doWait(3000);

        } catch (InterruptedException ie) {

            ie.printStackTrace();

        }

        comp.removeFocusListener(fa);

        if (!comp.isFocusOwner()) {

            throw new RuntimeException("Can't make " + comp + " focused, current owner is " + KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner());

        }

    }

static class Semaphore {

    boolean state = false;

    int waiting = 0;

    public Semaphore() {

    }

    public synchronized void doWait() throws InterruptedException {

        if (state) {

            return;

        }

        waiting++;

        wait();

        waiting--;

    }

    public synchronized void doWait(int timeout) throws InterruptedException {

        if (state) {

            return;

        }

        waiting++;

        wait(timeout);

        waiting--;

    }

    public synchronized void raise() {

        state = true;

        if (waiting > 0) {

            notifyAll();

        }

    }

    public synchronized boolean getState() {

        return state;

    }

}

}