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//////////////////////////////////////////////////////////////////////
// //
// JCSP ("CSP for Java") Libraries //
// Copyright (C) 1996-2008 Peter Welch and Paul Austin. //
// 2001-2004 Quickstone Technologies Limited. //
// //
// This library is free software; you can redistribute it and/or //
// modify it under the terms of the GNU Lesser General Public //
// License as published by the Free Software Foundation; either //
// version 2.1 of the License, or (at your option) any later //
// version. //
// //
// 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. //
// //
// Author contact: P.H.Welch@kent.ac.uk //
// //
// //
//////////////////////////////////////////////////////////////////////
package org.jcsp.awt;
import org.jcsp.lang.*;
import java.awt.event.*;
/**
* @author P.D. Austin and P.H. Welch
*/
class FocusEventHandler implements FocusListener
{
/**
* The Channel action event notifications are sent down.
*/
private ChannelOutput event;
/**
* constructs a new FocusEventHandler with the specified output Channel.
*
* @param event The Channel to send the event notification down
*/
public FocusEventHandler(ChannelOutput event)
{
this.event = event;
}
/**
* Invoked when the Component the event handler is listening to Gains the
* input Focus. Notifies the event process that a FocusEvent has
* occurred by sending the FocusEvent Object. Some notifications will be
* lost so there are no guarantees that all events generated will be
* processed.
*
* @param e The parameters associated with this event
*/
public void focusGained(FocusEvent e)
{
event.write(e);
}
/**
* Invoked when the Component the event handler is listening to Gains the
* input Focus. Notifies the event process that a FocusEvent has
* occurred by sending the FocusEvent Object. Some notifications will be
* lost so there are no guarantees that all events generated will be
* processed.
*
* @param e The parameters associated with this event
*/
public void focusLost(FocusEvent e)
{
event.write(e);
}
}
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