/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: ConsoleWait.java,v $
*
* $Revision: 1.2 $
*
* last change: $Author: vg $ $Date: 2006/03/31 12:17:21 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
package integration.extensions;
import com.sun.star.uno.*;
import com.sun.star.lang.XComponent;
public class ConsoleWait implements com.sun.star.lang.XEventListener
{
private Object m_disposable;
/** a helper class which waits for a console ENTER key event in a dedicated thread,
and notifies a ConsoleWait object if this event happened
*/
private class WaitForEnter extends java.lang.Thread
{
private ConsoleWait m_toNotify;
private boolean m_done;
public WaitForEnter( ConsoleWait _toNotify )
{
m_toNotify = _toNotify;
m_done = false;
}
public boolean isDone()
{
return m_done;
}
public void run()
{
try
{
System.out.println( "\npress enter to exit" );
System.in.read();
m_done = true;
// notify that the user pressed the key
synchronized ( m_toNotify )
{
m_toNotify.notify();
}
}
catch( java.lang.Exception e )
{
// not really interested in
System.err.println( e );
}
}
};
/** creates a ConsoleWait instance
* @param _disposable
* a component whose disposal should be monitored. When this component dies,
* the ConsoleWait also returns from an waitForConsole call, even if the user
* did not yet press the enter key
*/
public ConsoleWait( Object _disposable )
{
m_disposable = _disposable;
XComponent component = (XComponent)UnoRuntime.queryInterface( XComponent.class, _disposable );
if ( component != null )
component.addEventListener( this );
}
/** waits for the user to press the ENTER key (on the console where she started the java program)
or the disposable component to be closed by the user.
@return
TRUE if the user pressed a key on the console, FALSE if she closed the document
*/
public boolean waitForUserInput() throws java.lang.Exception
{
synchronized (this)
{
WaitForEnter keyWaiter = new WaitForEnter( this );
keyWaiter.start();
wait();
// if the waiter thread is done, the user pressed enter
boolean bKeyPressed = keyWaiter.isDone();
if ( !bKeyPressed )
keyWaiter.interrupt();
return bKeyPressed;
}
}
/* ------------------------------------------------------------------ */
/* XEventListener overridables */
/* ------------------------------------------------------------------ */
public void disposing( com.sun.star.lang.EventObject eventObject )
{
if ( eventObject.Source.equals( m_disposable ) )
{
// notify ourself that we can stop waiting for user input
synchronized (this)
{
notify();
}
}
}
}