FocusAdapter.java

/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 ******************************************************************************/
package org.eclipse.swt.events;

/**
 * This adapter class provides default implementations for the methods described
 * by the <code>FocusListener</code> interface.
 * <p>
 * Classes that wish to deal with <code>FocusEvent</code>s can extend this
 * class and override only the methods which they are interested in.
 * </p>
 * 
 * @see FocusListener
 * @see FocusEvent
 */
public abstract class FocusAdapter implements FocusListener {

  /**
   * Sent when a control gets focus. The default behavior is to do nothing.
   * 
   * @param event an event containing information about the focus change
   */
  public void focusGained( FocusEvent event ) {
  }

  /**
   * Sent when a control loses focus. The default behavior is to do nothing.
   * 
   * @param event an event containing information about the focus change
   */
  public void focusLost( FocusEvent event ) {
  }
}