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 *

 * This code is free software; you can redistribute it and/or modify it

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 *

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 * 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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 */

/*

  @test

  @bug 8080395

  @summary consider making sun.awt.CausedFocusEvent functionality public

  @run main FocusCauseTest

*/

import java.awt.*;

import java.awt.event.FocusEvent.Cause;

import java.awt.event.FocusEvent;

import java.awt.event.FocusListener;

import java.io.ByteArrayInputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.ObjectInputStream;

import java.lang.IllegalArgumentException;

import java.lang.Override;

import java.lang.RuntimeException;

import java.util.Arrays;

public class FocusCauseTest {

    private static Cause[] causes1 = {Cause.ACTIVATION,

            Cause.UNKNOWN, Cause.UNKNOWN, Cause.TRAVERSAL_FORWARD,

            Cause.TRAVERSAL_FORWARD, Cause.TRAVERSAL_BACKWARD,

            Cause.TRAVERSAL_BACKWARD, Cause.TRAVERSAL_UP,

            Cause.TRAVERSAL_DOWN, Cause.CLEAR_GLOBAL_FOCUS_OWNER};

    private static Cause[] causes2 = new Cause[10];

    private static int cnt;

    static byte[] data =

            {-84, -19, 0, 5, 115, 114, 0, 24, 115, 117, 110, 46, 97, 119,

            116, 46, 67, 97, 117, 115, 101, 100, 70, 111, 99, 117, 115, 69, 118,

            101, 110, 116, -51, 98, 39, -75, 86, 52, 107, 30, 2, 0, 1, 76, 0, 5,

            99, 97, 117, 115, 101, 116, 0, 32, 76, 115, 117, 110, 47, 97, 119,

            116, 47, 67, 97, 117, 115, 101, 100, 70, 111, 99, 117, 115, 69, 118,

            101, 110, 116, 36, 67, 97, 117, 115, 101, 59, 120, 114, 0, 25, 106,

            97, 118, 97, 46, 97, 119, 116, 46, 101, 118, 101, 110, 116, 46, 70,

            111, 99, 117, 115, 69, 118, 101, 110, 116, 7, 68, -65, 75, 55, -113,

            98, -52, 2, 0, 1, 90, 0, 9, 116, 101, 109, 112, 111, 114, 97, 114,

            121, 120, 114, 0, 29, 106, 97, 118, 97, 46, 97, 119, 116, 46, 101,

            118, 101, 110, 116, 46, 67, 111, 109, 112, 111, 110, 101, 110, 116,

            69, 118, 101, 110, 116, 112, 109, -6, -107, 79, -87, -38, 69, 2, 0,

            0, 120, 114, 0, 17, 106, 97, 118, 97, 46, 97, 119, 116, 46, 65, 87,

            84, 69, 118, 101, 110, 116, -26, -85, 45, -31, 24, -33, -118, -61,

            2, 0, 3, 90, 0, 8, 99, 111, 110, 115, 117, 109, 101, 100, 73, 0, 2,

            105, 100, 91, 0, 5, 98, 100, 97, 116, 97, 116, 0, 2, 91, 66, 120,

            114, 0, 21, 106, 97, 118, 97, 46, 117, 116, 105, 108, 46, 69, 118,

            101, 110, 116, 79, 98, 106, 101, 99, 116, 76, -115, 9, 78, 24, 109,

            125, -88, 2, 0, 0, 120, 112, 0, 0, 0, 3, -20, 112, 0, 126, 114, 0,

            30, 115, 117, 110, 46, 97, 119, 116, 46, 67, 97, 117, 115, 101, 100,

            70, 111, 99, 117, 115, 69, 118, 101, 110, 116, 36, 67, 97, 117, 115,

            101, 0, 0, 0, 0, 0, 0, 0, 0, 18, 0, 0, 120, 114, 0, 14, 106, 97,

            118, 97, 46, 108, 97, 110, 103, 46, 69, 110, 117, 109, 0, 0, 0, 0,

            0, 0, 0, 0, 18, 0, 0, 120, 112, 116, 0};

    static byte[] dataOld =

            {-84, -19, 0, 5, 115, 114, 0, 25, 106, 97, 118, 97, 46, 97, 119,

            116, 46, 101, 118, 101, 110, 116, 46, 70, 111, 99, 117, 115, 69,

            118, 101, 110, 116, 7, 68, -65, 75, 55, -113, 98, -52, 2, 0, 1, 90,

            0, 9, 116, 101, 109, 112, 111, 114, 97, 114, 121, 120, 114, 0, 29,

            106, 97, 118, 97, 46, 97, 119, 116, 46, 101, 118, 101, 110, 116, 46,

            67, 111, 109, 112, 111, 110, 101, 110, 116, 69, 118, 101, 110, 116,

            112, 109, -6, -107, 79, -87, -38, 69, 2, 0, 0, 120, 114, 0, 17, 106,

            97, 118, 97, 46, 97, 119, 116, 46, 65, 87, 84, 69, 118, 101, 110,

            116, -26, -85, 45, -31, 24, -33, -118, -61, 2, 0, 3, 90, 0, 8, 99,

            111, 110, 115, 117, 109, 101, 100, 73, 0, 2, 105, 100, 91, 0, 5, 98,

            100, 97, 116, 97, 116, 0, 2, 91, 66, 120, 114, 0, 21, 106, 97, 118,

            97, 46, 117, 116, 105, 108, 46, 69, 118, 101, 110, 116, 79, 98, 106,

            101, 99, 116, 76, -115, 9, 78, 24, 109, 125, -88, 2, 0, 0, 120, 112,

            0, 0, 0, 0, 100, 112, 0};

    static String[] causesIn = {"UNKNOWN", "MOUSE_EVENT", "TRAVERSAL",

            "TRAVERSAL_UP", "TRAVERSAL_DOWN", "TRAVERSAL_FORWARD",

            "TRAVERSAL_BACKWARD", "MANUAL_REQUEST", "AUTOMATIC_TRAVERSE"

            ,"ROLLBACK", "NATIVE_SYSTEM", "ACTIVATION",

            "CLEAR_GLOBAL_FOCUS_OWNER", "RETARGETED"};

    static FocusEvent.Cause[] causesOut = {FocusEvent.Cause.UNKNOWN,

            FocusEvent.Cause.MOUSE_EVENT,

            FocusEvent.Cause.TRAVERSAL, FocusEvent.Cause.TRAVERSAL_UP,

            FocusEvent.Cause.TRAVERSAL_DOWN, FocusEvent.Cause.TRAVERSAL_FORWARD,

            FocusEvent.Cause.TRAVERSAL_BACKWARD, FocusEvent.Cause.UNKNOWN,

            FocusEvent.Cause.UNKNOWN, FocusEvent.Cause.ROLLBACK,

            FocusEvent.Cause.UNEXPECTED, FocusEvent.Cause.ACTIVATION,

            FocusEvent.Cause.CLEAR_GLOBAL_FOCUS_OWNER, FocusEvent.Cause.UNKNOWN

    };

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

        testCauses();

        testNullCause();

        testCausedFocusEventDeserialization();

        testFocusEventDeserialization();

        System.out.println("ok");

    }

    private static void testNullCause() {

        try {

            new FocusEvent(new Frame(), FocusEvent.FOCUS_GAINED, true,

                    null, null);

            throw new RuntimeException("Exception is not thrown when the " +

                    "cause is null");

        } catch (IllegalArgumentException e) {

        }

    }

    private static void testCauses() throws Exception {

        cnt = 0;

        Frame frame = new Frame();

        TextField comp1 = new TextField();

        comp1.addFocusListener(new FocusListener() {

            @Override

            public void focusGained(FocusEvent e) {

                System.out.println(e.getCause());

                causes2[cnt++] = e.getCause();

            }

            @Override

            public void focusLost(FocusEvent e) {

                System.out.println(e.getCause());

                causes2[cnt++] = e.getCause();

            }

        });

        TextField comp2 = new TextField();

        comp2.addFocusListener(new FocusListener() {

            @Override

            public void focusGained(FocusEvent e) {

                System.out.println(e.getCause());

                causes2[cnt++] = e.getCause();

            }

            @Override

            public void focusLost(FocusEvent e) {

                System.out.println(e.getCause());

                causes2[cnt++] = e.getCause();

            }

        });

        frame.add(comp1, BorderLayout.NORTH);

        frame.add(comp2, BorderLayout.SOUTH);

        frame.setVisible(true);

        Robot robot = new Robot();

        robot.delay(200);

        robot.waitForIdle();

        comp2.requestFocus();

        robot.waitForIdle();

        comp2.transferFocus();

        robot.waitForIdle();

        comp1.transferFocusBackward();

        robot.waitForIdle();

        comp2.transferFocusUpCycle();

        robot.waitForIdle();

        frame.transferFocusDownCycle();

        robot.waitForIdle();

        frame.dispose();

        robot.waitForIdle();

        if (!Arrays.equals(causes1, causes2)) {

            throw new RuntimeException("wrong cause " + causes2);

        }

    }

    private static void  testCausedFocusEventDeserialization() throws

            Exception {

        for (int i = 0; i < causesIn.length; i++) {

            final String causeIn = causesIn[i];

            ObjectInputStream oi = new ObjectInputStream(new InputStream() {

                int cnt = 0;

                @Override

                public int read() throws IOException {

                    if(cnt < data.length) {

                        return data[cnt++];

                    } else if(cnt == data.length){

                        cnt++;

                        return causeIn.length();

                    } else if(cnt - data.length - 1 < causeIn.length()) {

                        return causeIn.getBytes()[cnt++ - data.length - 1];

                    }

                    return -1;

                }

            });

            FocusEvent ev = (FocusEvent) oi.readObject();

            System.out.println(ev);

            if(ev.getCause() != causesOut[i]) {

                throw new RuntimeException("Wrong cause read :" +ev.getCause());

            }

        }

    }

    private static void testFocusEventDeserialization() throws

            Exception {

        ObjectInputStream oi = new ObjectInputStream(

                new ByteArrayInputStream(dataOld));

        FocusEvent ev = (FocusEvent)oi.readObject();

        if(ev.getCause() != FocusEvent.Cause.UNKNOWN) {

            throw new RuntimeException("Wrong cause in deserialized FocusEvent "

                    + ev.getCause());

        }

    }

}