CompEventOnHiddenComponent.java

/*
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 * 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).
 *
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 * 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
  @key headful
  @bug 6383903 8144166
  @summary REGRESSION: componentMoved is now getting called for some hidden components
  @author andrei.dmitriev: area=awt.component
  @run main CompEventOnHiddenComponent
*/

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class CompEventOnHiddenComponent
{
    transient static boolean moved = false;
    transient static boolean resized = false;

    transient static boolean ancestor_moved = false;
    transient static boolean ancestor_resized = false;
    static String passed = "";

    private static void init()
    {
        Robot robot;
        try {
            robot = new Robot();
        }catch(Exception ex) {
            ex.printStackTrace();
            throw new RuntimeException("Unexpected failure");
        }

        EventQueue.invokeLater(new Runnable(){
                public void run(){
                    JFrame f = new JFrame("JFrame");
                    JButton b = new JButton("JButton");
                    f.add(b);
                    new JOptionPane().
                        createInternalFrame(b, "Test").
                        addComponentListener(new ComponentAdapter() {
                                public void componentMoved(ComponentEvent e) {
                                    moved = true;
                                    System.out.println(e);
                                }
                                public void componentResized(ComponentEvent e) {
                                    resized = true;
                                    System.out.println(e);
                                }
                            });
                }
            });

        robot.waitForIdle();

        if (moved || resized){
            passed = "Hidden component got COMPONENT_MOVED or COMPONENT_RESIZED event";
        } else {
            System.out.println("Stage 1 passed.");
        }

        EventQueue.invokeLater(new Runnable() {
                public void run() {
                    JFrame parentWindow = new JFrame("JFrame 1");
                    JButton component = new JButton("JButton 1");;
                    JButton smallButton = new JButton("Small Button");


                    smallButton.addHierarchyBoundsListener(new HierarchyBoundsAdapter() {
                            public void ancestorMoved(HierarchyEvent e) {
                                ancestor_moved = true;
                                System.out.println("SMALL COMPONENT >>>>>"+e);
                            }
                            public void ancestorResized(HierarchyEvent e) {
                                ancestor_resized = true;
                                System.out.println("SMALL COMPONENT >>>>>"+e);
                            }
                        });


                    parentWindow.add(component);
                    component.add(smallButton);

                    component.setSize(100, 100);
                    component.setLocation(100, 100);

                }
            });

        robot.waitForIdle();

        if (!ancestor_resized || !ancestor_moved){
            passed = "Hidden component didn't get ANCESTOR event";
        } else {
            System.out.println("Stage 2 passed.");
        }

        robot.waitForIdle();

        if (passed.equals("")){
            CompEventOnHiddenComponent.pass();
        } else {
            CompEventOnHiddenComponent.fail(passed);
        }

    }//End  init()



    /*****************************************************
     * Standard Test Machinery Section
     * DO NOT modify anything in this section -- it's a
     * standard chunk of code which has all of the
     * synchronisation necessary for the test harness.
     * By keeping it the same in all tests, it is easier
     * to read and understand someone else's test, as
     * well as insuring that all tests behave correctly
     * with the test harness.
     * There is a section following this for test-
     * classes
     ******************************************************/
    private static boolean theTestPassed = false;
    private static boolean testGeneratedInterrupt = false;
    private static String failureMessage = "";

    private static Thread mainThread = null;

    private static int sleepTime = 300000;

    // Not sure about what happens if multiple of this test are
    //  instantiated in the same VM.  Being static (and using
    //  static vars), it aint gonna work.  Not worrying about
    //  it for now.
    public static void main( String args[] ) throws InterruptedException
    {
        mainThread = Thread.currentThread();
        try
        {
            init();
        }
        catch( TestPassedException e )
        {
            //The test passed, so just return from main and harness will
            // interepret this return as a pass
            return;
        }
        //At this point, neither test pass nor test fail has been
        // called -- either would have thrown an exception and ended the
        // test, so we know we have multiple threads.

        //Test involves other threads, so sleep and wait for them to
        // called pass() or fail()
        try
        {
            Thread.sleep( sleepTime );
            //Timed out, so fail the test
            throw new RuntimeException( "Timed out after " + sleepTime/1000 + " seconds" );
        }
        catch (InterruptedException e)
        {
            //The test harness may have interrupted the test.  If so, rethrow the exception
            // so that the harness gets it and deals with it.
            if( ! testGeneratedInterrupt ) throw e;

            //reset flag in case hit this code more than once for some reason (just safety)
            testGeneratedInterrupt = false;

            if ( theTestPassed == false )
            {
                throw new RuntimeException( failureMessage );
            }
        }

    }//main

    public static synchronized void setTimeoutTo( int seconds )
    {
        sleepTime = seconds * 1000;
    }

    public static synchronized void pass()
    {
        System.out.println( "The test passed." );
        System.out.println( "The test is over, hit  Ctl-C to stop Java VM" );
        //first check if this is executing in main thread
        if ( mainThread == Thread.currentThread() )
        {
            //Still in the main thread, so set the flag just for kicks,
            // and throw a test passed exception which will be caught
            // and end the test.
            theTestPassed = true;
            throw new TestPassedException();
        }
        theTestPassed = true;
        testGeneratedInterrupt = true;
        mainThread.interrupt();
    }//pass()

    public static synchronized void fail()
    {
        //test writer didn't specify why test failed, so give generic
        fail( "it just plain failed! :-)" );
    }

    public static synchronized void fail( String whyFailed )
    {
        System.out.println( "The test failed: " + whyFailed );
        System.out.println( "The test is over, hit  Ctl-C to stop Java VM" );
        //check if this called from main thread
        if ( mainThread == Thread.currentThread() )
        {
            //If main thread, fail now 'cause not sleeping
            throw new RuntimeException( whyFailed );
        }
        theTestPassed = false;
        testGeneratedInterrupt = true;
        failureMessage = whyFailed;
        mainThread.interrupt();
    }//fail()

}// class CompEventOnHiddenComponent

//This exception is used to exit from any level of call nesting
// when it's determined that the test has passed, and immediately
// end the test.
class TestPassedException extends RuntimeException
{
}

//*********** End Standard Test Machinery Section **********