8014725: closed/java/awt/Clipboard/HTMLTransferTest/HTMLTransferTest.html failed intermittently
Reviewed-by: alexsch, azvegint
--- a/jdk/src/java.desktop/share/classes/sun/awt/datatransfer/DataTransferer.java Wed Sep 16 10:16:16 2015 +0300
+++ b/jdk/src/java.desktop/share/classes/sun/awt/datatransfer/DataTransferer.java Wed Sep 16 10:22:42 2015 +0300
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2015, 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
@@ -938,15 +938,9 @@
try (ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
try (InputStream is = (InputStream)obj) {
- boolean eof = false;
- int avail = is.available();
- byte[] tmp = new byte[avail > 8192 ? avail : 8192];
- do {
- int aValue;
- if (!(eof = (aValue = is.read(tmp, 0, tmp.length)) == -1)) {
- bos.write(tmp, 0, aValue);
- }
- } while (!eof);
+ is.mark(Integer.MAX_VALUE);
+ is.transferTo(bos);
+ is.reset();
}
if (DataFlavorUtil.isFlavorCharsetTextType(flavor) && isTextFormat(format)) {
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/awt/Clipboard/HTMLTransferTest/HTMLTransferTest.html Wed Sep 16 10:22:42 2015 +0300
@@ -0,0 +1,44 @@
+<!--
+ Copyright (c) 2015 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.
+-->
+
+
+<html>
+<!--
+ @test
+ @bug 6392086 8014725
+ @summary Tests basic DnD functionality in an applet
+ @author Alexey Utkin, Semyon Sadetsky area=dnd
+ @run applet HTMLTransferTest.html
+-->
+<head>
+<title> </title>
+</head>
+<body>
+
+<h1>HTMLTransferTest<br>Bug ID: 6392086</h1>
+
+<p> This is an AUTOMATIC test, simply wait for completion </p>
+
+<APPLET CODE="HTMLTransferTest.class" WIDTH=200 HEIGHT=200></APPLET>
+</body>
+</html>
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/awt/Clipboard/HTMLTransferTest/HTMLTransferTest.java Wed Sep 16 10:22:42 2015 +0300
@@ -0,0 +1,767 @@
+/*
+ * Copyright (c) 2015 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.
+ */
+
+/*
+ @bug 6392086 8014725
+ @summary Tests basic DnD functionality in an applet
+ @author Alexey Utkin, Semyon Sadetsky
+ @run applet HTMLTransferTest.html
+*/
+
+/**
+ * HTMLTransferTest.java
+ *
+ * summary: tests that HTMLs of all supported native HTML formats
+ * are transfered properly
+ */
+
+import java.applet.Applet;
+import java.awt.*;
+import java.awt.datatransfer.*;
+import java.io.*;
+
+
+public class HTMLTransferTest extends Applet {
+ public static final int CODE_NOT_RETURNED = 100;
+ public static final int CODE_CONSUMER_TEST_FAILED = 101;
+ public static final int CODE_FAILURE = 102;
+ public static DataFlavor[] HTMLFlavors = null;
+ public static DataFlavor SyncFlavor = null;
+ static {
+ try{
+ HTMLFlavors = new DataFlavor[] {
+ new DataFlavor("text/html; document=selection; Class=" + InputStream.class.getName() + "; charset=UTF-8"),
+ new DataFlavor("text/html; document=selection; Class=" + String.class.getName() + "; charset=UTF-8")
+ };
+ SyncFlavor = new DataFlavor(
+ "application/x-java-serialized-object; class="
+ + SyncMessage.class.getName()
+ + "; charset=UTF-8"
+ );
+ }catch(Exception e){
+ e.printStackTrace();
+ }
+ }
+
+ private THTMLProducer imPr;
+ private int returnCode = CODE_NOT_RETURNED;
+
+ public void init() {
+ initImpl();
+
+ String[] instructions =
+ {
+ "This is an AUTOMATIC test",
+ "simply wait until it is done"
+ };
+ Sysout.createDialog( );
+ Sysout.printInstructions( instructions );
+
+ } // init()
+
+ private void initImpl() {
+ imPr = new THTMLProducer();
+ imPr.begin();
+ }
+
+
+ public void start() {
+ try {
+ String stFormats = "";
+
+ String iniMsg = "Testing formats from the list:\n";
+ for (int i = 0; i < HTMLTransferTest.HTMLFlavors.length; i++) {
+ stFormats += "\"" + HTMLTransferTest.HTMLFlavors[i].getMimeType() + "\"\n";
+ }
+ Sysout.println(iniMsg + stFormats);
+ System.err.println("===>" + iniMsg + stFormats);
+
+ String javaPath = System.getProperty("java.home", "");
+ String cmd = javaPath + File.separator + "bin" + File.separator
+ + "java -cp " + System.getProperty("test.classes", ".") +
+ //+ "-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 "
+ " THTMLConsumer"
+ //+ stFormats
+ ;
+
+ Process process = Runtime.getRuntime().exec(cmd);
+ ProcessResults pres = ProcessResults.doWaitFor(process);
+ returnCode = pres.exitValue;
+
+ if (pres.stderr != null && pres.stderr.length() > 0) {
+ System.err.println("========= Child VM System.err ========");
+ System.err.print(pres.stderr);
+ System.err.println("======================================");
+ }
+
+ if (pres.stdout != null && pres.stdout.length() > 0) {
+ System.err.println("========= Child VM System.out ========");
+ System.err.print(pres.stdout);
+ System.err.println("======================================");
+ }
+ } catch (Throwable e) {
+ e.printStackTrace();
+ //returnCode equals CODE_NOT_RETURNED
+ }
+
+ switch (returnCode) {
+ case CODE_NOT_RETURNED:
+ System.err.println("Child VM: failed to start");
+ break;
+ case CODE_FAILURE:
+ System.err.println("Child VM: abnormal termination");
+ break;
+ case CODE_CONSUMER_TEST_FAILED:
+ throw new RuntimeException("test failed: HTMLs in some " +
+ "native formats are not transferred properly: " +
+ "see output of child VM");
+ default:
+ boolean failed = false;
+ String passedFormats = "";
+ String failedFormats = "";
+
+ for (int i = 0; i < imPr.passedArray.length; i++) {
+ if (imPr.passedArray[i]) {
+ passedFormats += HTMLTransferTest.HTMLFlavors[i].getMimeType() + " ";
+ } else {
+ failed = true;
+ failedFormats += HTMLTransferTest.HTMLFlavors[i].getMimeType() + " ";
+ }
+ }
+ if (failed) {
+ throw new RuntimeException(
+ "test failed: HTMLs in following "
+ + "native formats are not transferred properly: "
+ + failedFormats
+ );
+ } else {
+ System.err.println(
+ "HTMLs in following native formats are "
+ + "transferred properly: "
+ + passedFormats
+ );
+ }
+ }
+
+ } // start()
+
+} // class HTMLTransferTest
+
+class SyncMessage implements Serializable {
+ String msg;
+
+ public SyncMessage(String sync) {
+ this.msg = sync;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ return this.msg.equals(((SyncMessage)obj).msg);
+ }
+
+ @Override
+ public String toString() {
+ return msg;
+ }
+}
+
+class ProcessResults {
+ public int exitValue;
+ public String stdout;
+ public String stderr;
+
+ public ProcessResults() {
+ exitValue = -1;
+ stdout = "";
+ stderr = "";
+ }
+
+ /**
+ * Method to perform a "wait" for a process and return its exit value.
+ * This is a workaround for <code>Process.waitFor()</code> never returning.
+ */
+ public static ProcessResults doWaitFor(Process p) {
+ ProcessResults pres = new ProcessResults();
+
+ InputStream in = null;
+ InputStream err = null;
+
+ try {
+ in = p.getInputStream();
+ err = p.getErrorStream();
+
+ boolean finished = false;
+
+ while (!finished) {
+ try {
+ while (in.available() > 0) {
+ pres.stdout += (char)in.read();
+ }
+ while (err.available() > 0) {
+ pres.stderr += (char)err.read();
+ }
+ // Ask the process for its exitValue. If the process
+ // is not finished, an IllegalThreadStateException
+ // is thrown. If it is finished, we fall through and
+ // the variable finished is set to true.
+ pres.exitValue = p.exitValue();
+ finished = true;
+ }
+ catch (IllegalThreadStateException e) {
+ // Process is not finished yet;
+ // Sleep a little to save on CPU cycles
+ Thread.currentThread().sleep(500);
+ }
+ }
+ if (in != null) in.close();
+ if (err != null) err.close();
+ }
+ catch (Throwable e) {
+ System.err.println("doWaitFor(): unexpected exception");
+ e.printStackTrace();
+ }
+ return pres;
+ }
+}
+
+
+abstract class HTMLTransferer implements ClipboardOwner {
+
+ static final SyncMessage S_PASSED = new SyncMessage("Y");
+ static final SyncMessage S_FAILED = new SyncMessage("N");
+ static final SyncMessage S_BEGIN = new SyncMessage("B");
+ static final SyncMessage S_BEGIN_ANSWER = new SyncMessage("BA");
+ static final SyncMessage S_END = new SyncMessage("E");
+
+
+
+ Clipboard m_clipboard;
+
+ HTMLTransferer() {
+ m_clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
+ }
+
+
+ abstract void notifyTransferSuccess(boolean status);
+
+
+ static Object createTRInstance(int i) {
+ try{
+ String _htmlText =
+ "The quick <font color='#78650d'>brown</font> <b>mouse</b> jumped over the lazy <b>cat</b>.";
+ switch(i){
+ case 0:
+ return new ByteArrayInputStream(_htmlText.getBytes("utf-8"));
+ case 1:
+ return _htmlText;
+ }
+ }catch(UnsupportedEncodingException e){ e.printStackTrace(); }
+ return null;
+ }
+
+ static byte[] getContent(InputStream is)
+ {
+ ByteArrayOutputStream tmp = new ByteArrayOutputStream();
+ try{
+ int read;
+ while( -1 != (read = is.read()) ){
+ tmp.write(read);
+ };
+ } catch( IOException e ) {
+ e.printStackTrace();
+ }
+ return tmp.toByteArray();
+ }
+
+ static void Dump(byte[] b){
+ System.err.println( new String(b) );
+ };
+
+ void setClipboardContents(
+ Transferable contents,
+ ClipboardOwner owner
+ ) {
+ synchronized (m_clipboard) {
+ boolean set = false;
+ while (!set) {
+ try {
+ m_clipboard.setContents(contents, owner);
+ set = true;
+ } catch (IllegalStateException ise) {
+ try {
+ Thread.sleep(100);
+ } catch(InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
+ }
+ }
+ }
+
+ Transferable getClipboardContents(Object requestor)
+ {
+ synchronized (m_clipboard) {
+ while (true) {
+ try {
+ Transferable t = m_clipboard.getContents(requestor);
+ return t;
+ } catch (IllegalStateException ise) {
+ try {
+ Thread.sleep(100);
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
+ }
+ }
+ }
+
+}
+
+
+class THTMLProducer extends HTMLTransferer {
+
+ boolean[] passedArray;
+ int fi = 0; // next format index
+ private boolean isFirstCallOfLostOwnership = true;
+
+ THTMLProducer() {
+ passedArray = new boolean[HTMLTransferTest.HTMLFlavors.length];
+ }
+
+ void begin() {
+ setClipboardContents(
+ new HTMLSelection(
+ HTMLTransferTest.SyncFlavor,
+ S_BEGIN
+ ),
+ this
+ );
+ }
+
+ public void lostOwnership(Clipboard cb, Transferable contents) {
+ System.err.println("{PRODUCER: lost clipboard ownership");
+ Transferable t = getClipboardContents(null);
+ if (t.isDataFlavorSupported(HTMLTransferTest.SyncFlavor)) {
+ SyncMessage msg = null;
+ // for test going on if t.getTransferData() will throw an exception
+ if (isFirstCallOfLostOwnership) {
+ isFirstCallOfLostOwnership = false;
+ msg = S_BEGIN_ANSWER;
+ } else {
+ msg = S_PASSED;
+ }
+ try {
+ msg = (SyncMessage)t.getTransferData(HTMLTransferTest.SyncFlavor);
+ System.err.println("++received message: " + msg);
+ } catch (Exception e) {
+ System.err.println("Can't getTransferData-message: " + e);
+ }
+ if( msg.equals(S_PASSED) ){
+ notifyTransferSuccess(true);
+ } else if( msg.equals(S_FAILED) ){
+ notifyTransferSuccess(false);
+ } else if (!msg.equals(S_BEGIN_ANSWER)) {
+ throw new RuntimeException("wrong message in " +
+ "THTMLProducer.lostOwnership(): " + msg +
+ " (possibly due to bug 4683804)");
+ }
+ } else {
+ throw new RuntimeException(
+ "DataFlavor.stringFlavor is not "
+ + "suppurted by transferable in "
+ + "THTMLProducer.lostOwnership()"
+ );
+ }
+
+ if (fi < HTMLTransferTest.HTMLFlavors.length) {
+ System.err.println(
+ "testing native HTML format \""
+ + HTMLTransferTest.HTMLFlavors[fi].getMimeType()
+ + "\"..."
+ );
+ //leaveFormat( HTMLTransferTest.HTMLFlavors[fi].getMimeType() );
+ setClipboardContents(
+ new HTMLSelection(
+ HTMLTransferTest.HTMLFlavors[fi],
+ HTMLTransferer.createTRInstance(fi)
+ ),
+ this
+ );
+ } else {
+ setClipboardContents(
+ new HTMLSelection(
+ HTMLTransferTest.SyncFlavor,
+ S_END
+ ),
+ null
+ );
+ }
+ System.err.println("}PRODUCER: lost clipboard ownership");
+ }
+
+
+ void notifyTransferSuccess(boolean status) {
+ passedArray[fi] = status;
+ fi++;
+ }
+
+}
+
+
+class THTMLConsumer extends HTMLTransferer
+{
+ private static final Object LOCK = new Object();
+ private static boolean failed;
+ int fi = 0; // next format index
+
+ public void lostOwnership(Clipboard cb, Transferable contents) {
+ System.err.println("{CONSUMER: lost clipboard ownership");
+ Transferable t = getClipboardContents(null);
+ boolean bContinue = true;
+ if(t.isDataFlavorSupported(HTMLTransferTest.SyncFlavor)) {
+ try {
+ SyncMessage msg = (SyncMessage)t.getTransferData(HTMLTransferTest.SyncFlavor);
+ System.err.println("received message: " + msg);
+ if(msg.equals(S_END)){
+ synchronized (LOCK) {
+ LOCK.notifyAll();
+ }
+ bContinue = false;
+ }
+ } catch (Exception e) {
+ System.err.println("Can't getTransferData-message: " + e);
+ }
+ }
+ if(bContinue){
+ // all HTML formats have been processed
+ System.err.println( "============================================================");
+ System.err.println( "Put as " + HTMLTransferTest.HTMLFlavors[fi].getMimeType() );
+ boolean bSuccess = false;
+ for(int i = 0; i < HTMLTransferTest.HTMLFlavors.length; ++i) {
+ System.err.println( "----------------------------------------------------------");
+ if( t.isDataFlavorSupported(HTMLTransferTest.HTMLFlavors[i]) ){
+ Object im = null; //? HTML;
+ try {
+ im = t.getTransferData(HTMLTransferTest.HTMLFlavors[i]);
+ if (im == null) {
+ System.err.println("getTransferData returned null");
+ } else {
+ System.err.println( "Extract as " + HTMLTransferTest.HTMLFlavors[i].getMimeType() );
+ String stIn = "(unknown)", stOut = "(unknown)";
+ switch( i ){
+ case 0:
+ stIn = new String( getContent( (InputStream)HTMLTransferer.createTRInstance(i) ) );
+ stOut = new String( getContent((InputStream)im) );
+ bSuccess = stIn.equals(stOut);
+ break;
+ case 1:
+ stIn = (String)HTMLTransferer.createTRInstance(i);
+ stOut = (String)im;
+ int head = stOut.indexOf("<HTML><BODY>");
+ if (head >= 0) {
+ stOut = stOut.substring(head + 12, stOut.length() - 14);
+ }
+ bSuccess = stIn.equals(stOut);
+ break;
+ default:
+ bSuccess = HTMLTransferer.createTRInstance(i).equals(im);
+ break;
+ };
+ System.err.println("in :" + stIn);
+ System.err.println("out:" + stOut);
+ };
+ } catch (Exception e) {
+ System.err.println("Can't getTransferData: " + e);
+ }
+ if(!bSuccess)
+ System.err.println("transferred DATA is different from initial DATA\n");
+ } else {
+ System.err.println("Flavor is not supported by transferable:\n");
+ DataFlavor[] dfs = t.getTransferDataFlavors();
+ int ii;
+ for(ii = 0; ii < dfs.length; ++ii)
+ System.err.println("Supported:" + dfs[ii] + "\n");
+ dfs = HTMLTransferTest.HTMLFlavors;
+ for(ii = 0; ii < dfs.length; ++ii)
+ System.err.println("Accepted:" + dfs[ii] + "\n" );
+ }
+ }
+ System.err.println( "----------------------------------------------------------");
+ notifyTransferSuccess(bSuccess);
+ System.err.println( "============================================================");
+ ++fi;
+ }
+ System.err.println("}CONSUMER: lost clipboard ownership");
+ }
+
+
+ void notifyTransferSuccess(boolean status) {
+ System.err.println(
+ "format "
+ + (status
+ ? "passed"
+ : "failed"
+ )
+ + "!!!"
+ );
+ setClipboardContents(
+ new HTMLSelection(
+ HTMLTransferTest.SyncFlavor,
+ status
+ ? S_PASSED
+ : S_FAILED
+ ),
+ this
+ );
+ }
+
+
+ public static void main(String[] args) {
+ try {
+ System.err.println("{CONSUMER: start");
+ THTMLConsumer ic = new THTMLConsumer();
+ ic.setClipboardContents(
+ new HTMLSelection(
+ HTMLTransferTest.SyncFlavor,
+ S_BEGIN_ANSWER
+ ),
+ ic
+ );
+ synchronized (LOCK) {
+ LOCK.wait();
+ }
+ System.err.println("}CONSUMER: start");
+ } catch (Throwable e) {
+ e.printStackTrace();
+ System.exit(HTMLTransferTest.CODE_FAILURE);
+ }
+ }
+
+}
+
+
+/**
+ * A <code>Transferable</code> which implements the capability required
+ * to transfer an <code>HTML</code>.
+ *
+ * This <code>Transferable</code> properly supports
+ * <code>HTMLTransferTest.HTMLFlavors</code>.
+ * and all equivalent flavors.
+ * No other <code>DataFlavor</code>s are supported.
+ *
+ * @see java.awt.datatransfer.HTMLTransferTest.HTMLFlavors
+ */
+class HTMLSelection implements Transferable {
+ private DataFlavor m_flavor;
+ private Object m_data;
+
+ /**
+ * Creates a <code>Transferable</code> capable of transferring
+ * the specified <code>String</code>.
+ */
+ public HTMLSelection(
+ DataFlavor flavor,
+ Object data
+ ){
+ m_flavor = flavor;
+ m_data = data;
+ }
+
+ /**
+ * Returns an array of flavors in which this <code>Transferable</code>
+ * can provide the data. <code>DataFlavor.stringFlavor</code>
+ * is properly supported.
+ * Support for <code>DataFlavor.plainTextFlavor</code> is
+ * <b>deprecated</b>.
+ *
+ * @return an array of length one, whose element is <code>DataFlavor.
+ * HTMLTransferTest.HTMLFlavors</code>
+ */
+ public DataFlavor[] getTransferDataFlavors() {
+ // returning flavors itself would allow client code to modify
+ // our internal behavior
+ return new DataFlavor[]{ m_flavor } ;
+ }
+
+ /**
+ * Returns whether the requested flavor is supported by this
+ * <code>Transferable</code>.
+ *
+ * @param flavor the requested flavor for the data
+ * @return true if <code>flavor</code> is equal to
+ * <code>HTMLTransferTest.HTMLFlavors</code>;
+ * false if <code>flavor</code>
+ * is not one of the above flavors
+ * @throws NullPointerException if flavor is <code>null</code>
+ */
+ public boolean isDataFlavorSupported(DataFlavor flavor) {
+ System.err.println("Have:" + flavor + " Can:" + m_flavor);
+ if(flavor.equals(m_flavor))
+ return true;
+ return false;
+ }
+
+ /**
+ * Returns the <code>Transferable</code>'s data in the requested
+ * <code>DataFlavor</code> if possible. If the desired flavor is
+ * <code>HTMLTransferTest.HTMLFlavors</code>, or an equivalent flavor,
+ * the <code>HTML</code> representing the selection is
+ * returned.
+ *
+ * @param flavor the requested flavor for the data
+ * @return the data in the requested flavor, as outlined above
+ * @throws UnsupportedFlavorException if the requested data flavor is
+ * not equivalent to <code>HTMLTransferTest.HTMLFlavors</code>
+ * @throws IOException if an IOException occurs while retrieving the data.
+ * By default, <code>HTMLSelection</code> never throws
+ * this exception, but a subclass may.
+ * @throws NullPointerException if flavor is <code>null</code>
+ */
+ public Object getTransferData(DataFlavor flavor)
+ throws UnsupportedFlavorException, IOException
+ {
+ if (flavor.equals(m_flavor)) {
+ return (Object)m_data;
+ } else {
+ throw new UnsupportedFlavorException(flavor);
+ }
+ }
+
+} // class HTMLSelection
+
+
+/****************************************************
+ Standard Test Machinery
+ DO NOT modify anything below -- it's a standard
+ chunk of code whose purpose is to make user
+ interaction uniform, and thereby make it simpler
+ to read and understand someone else's test.
+ ****************************************************/
+class Sysout
+ {
+ private static TestDialog dialog;
+
+ public static void createDialogWithInstructions( String[] instructions )
+ {
+ dialog = new TestDialog( new Frame(), "Instructions" );
+ dialog.printInstructions( instructions );
+ dialog.show();
+ println( "Any messages for the tester will display here." );
+ }
+
+ public static void createDialog( )
+ {
+ dialog = new TestDialog( new Frame(), "Instructions" );
+ String[] defInstr = { "Instructions will appear here. ", "" } ;
+ dialog.printInstructions( defInstr );
+ dialog.show();
+ println( "Any messages for the tester will display here." );
+ }
+
+
+ public static void printInstructions( String[] instructions )
+ {
+ dialog.printInstructions( instructions );
+ }
+
+
+ public static void println( String messageIn )
+ {
+ dialog.displayMessage( messageIn );
+ }
+
+ }// Sysout class
+
+class TestDialog extends Dialog
+ {
+
+ TextArea instructionsText;
+ TextArea messageText;
+ int maxStringLength = 80;
+
+ //DO NOT call this directly, go through Sysout
+ public TestDialog( Frame frame, String name )
+ {
+ super( frame, name );
+ int scrollBoth = TextArea.SCROLLBARS_BOTH;
+ instructionsText = new TextArea( "", 15, maxStringLength, scrollBoth );
+ add( "North", instructionsText );
+
+ messageText = new TextArea( "", 5, maxStringLength, scrollBoth );
+ add("South", messageText);
+
+ pack();
+
+ show();
+ }// TestDialog()
+
+ //DO NOT call this directly, go through Sysout
+ public void printInstructions( String[] instructions )
+ {
+ //Clear out any current instructions
+ instructionsText.setText( "" );
+
+ //Go down array of instruction strings
+
+ String printStr, remainingStr;
+ for( int i=0; i < instructions.length; i++ )
+ {
+ //chop up each into pieces maxSringLength long
+ remainingStr = instructions[ i ];
+ while( remainingStr.length() > 0 )
+ {
+ //if longer than max then chop off first max chars to print
+ if( remainingStr.length() >= maxStringLength )
+ {
+ //Try to chop on a word boundary
+ int posOfSpace = remainingStr.
+ lastIndexOf(' ', maxStringLength - 1);
+
+ if( posOfSpace <= 0 ) posOfSpace = maxStringLength - 1;
+
+ printStr = remainingStr.substring( 0, posOfSpace + 1 );
+ remainingStr = remainingStr.substring( posOfSpace + 1 );
+ }
+ //else just print
+ else
+ {
+ printStr = remainingStr;
+ remainingStr = "";
+ }
+
+ instructionsText.append( printStr + "\n" );
+
+ }// while
+
+ }// for
+
+ }//printInstructions()
+
+ //DO NOT call this directly, go through Sysout
+ public void displayMessage( String messageIn )
+ {
+ messageText.append( messageIn + "\n" );
+ }
+
+ }// TestDialog class