test/jdk/java/awt/Clipboard/LostOwnershipChainTest/PrivateClipboardTest.java - master - githubmirror/jdk11u-dev

test/jdk/java/awt/Clipboard/LostOwnershipChainTest/PrivateClipboardTest.java
118 строк4 KB
Antonio Vieiro
8306566: Open source several clipboard AWT tests
17 июн 2024, 18:17
17 июн 2024, 18:179b67f2f
/*
 * Copyright (c) 2002, 2023, 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.
 *
 * 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.
 */

/*
  @test
  @bug 4683804
  @summary Tests that in ClipboardOwner.lostOwnership() Clipboard.getContents()
           returns actual contents of the clipboard and Clipboard.setContents()
           can set contents of the clipboard and its owner. The clipboard is
           a private clipboard.
*/

import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.ClipboardOwner;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;

public class PrivateClipboardTest  {

    public static void main(String[] args) {
        PrivateClipboardOwner.run();

        if (PrivateClipboardOwner.failed) {
            throw new RuntimeException("test failed: can not get actual " +
            "contents of the clipboard or set owner of the clipboard");
        } else {
            System.err.println("test passed");
        }
    }
}

class PrivateClipboardOwner implements ClipboardOwner {
    static boolean failed;

    private static final Object LOCK = new Object();

    private static final int CHAIN_LENGTH = 5;
    private final static Clipboard clipboard =
            new Clipboard("PrivateClipboard");

    private int m, id;

    public PrivateClipboardOwner(int m) { this.m = m; id = m; }

    public void lostOwnership(Clipboard cb, Transferable contents) {
        System.err.println(id + " lost clipboard ownership");

        Transferable t = cb.getContents(null);
        String msg = null;
        try {
            msg = (String)t.getTransferData(DataFlavor.stringFlavor);
        } catch (Exception e) {
             System.err.println(id + " can't getTransferData: " + e);
        }
        System.err.println(id + " Clipboard.getContents(): " + msg);
        if ( ! msg.equals( "" + (m+1) ) ) {
            failed = true;
            System.err.println(
                    "Clipboard.getContents() returned incorrect contents!");
        }

        m += 2;
        if (m <= CHAIN_LENGTH) {
            System.err.println(id + " Clipboard.setContents(): " + m);
            cb.setContents(new StringSelection(m + ""), this);
        }

        synchronized (LOCK) {
            if (m > CHAIN_LENGTH) {
                LOCK.notifyAll();
            }
        }
    }

    public static void run() {
        PrivateClipboardOwner cbo1 = new PrivateClipboardOwner(0);
        System.err.println(cbo1.m + " Clipboard.setContents(): " + cbo1.m);
        clipboard.setContents(new StringSelection(cbo1.m + ""), cbo1);

        PrivateClipboardOwner cbo2 = new PrivateClipboardOwner(1);

        synchronized (LOCK) {
            System.err.println(cbo2.m + " Clipboard.setContents(): " + cbo2.m);
            clipboard.setContents(new StringSelection(cbo2.m + ""), cbo2);
            try {
                LOCK.wait();
            } catch (InterruptedException exc) {
                exc.printStackTrace();
            }
        }

        if (cbo1.m < CHAIN_LENGTH) {
            failed = true;
            System.err.println("chain of calls of lostOwnership() broken!");
        }
    }
}