/*******************************************************************************
* Copyright (c) 2000, 2017 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.events;
/**
* This adapter class provides default implementations for the
* methods described by the MenuListener
interface.
*
* Classes that wish to deal with MenuEvent
s can
* extend this class and override only the methods which they are
* interested in.
*
* An alternative to this class are the static helper methods * {@link MenuListener#menuHiddenAdapter(java.util.function.Consumer)} * and * {@link MenuListener#menuShownAdapter(java.util.function.Consumer)}, * which accept a lambda expression or a method reference that implements the event consumer. *
* * @see MenuListener * @see MenuEvent * @see Sample code and further information */ public abstract class MenuAdapter implements MenuListener { /** * Sent when a menu is hidden. * The default behavior is to do nothing. * * @param e an event containing information about the menu operation */ @Override public void menuHidden(MenuEvent e) { } /** * Sent when a menu is shown. * The default behavior is to do nothing. * * @param e an event containing information about the menu operation */ @Override public void menuShown(MenuEvent e) { } }