/*******************************************************************************
* Copyright (c) 2000, 2015 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.ui.forms.events;
/**
* Classes that implement this interface will be notified before and after the
* expandable control's expansion state changes.
*
* @since 3.0
*/
public interface IExpansionListener {
/**
* Notifies the listener that the expandable control is about to change its
* expansion state. The state provided by the event is the new state.
*
* @param e
* the expansion event
*/
void expansionStateChanging(ExpansionEvent e);
/**
* Notifies the listener after the expandable control has changed its
* expansion state. The state provided by the event is the new state.
*
* @param e
* the expansion event
*/
void expansionStateChanged(ExpansionEvent e);
}