001/*
002 *  Copyright 2012 GWT-Bootstrap
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package com.github.gwtbootstrap.client.ui.event;
017
018import com.google.gwt.event.shared.HandlerRegistration;
019
020/**
021 * Interface for widgets that handle {@link CloseEvent}s and {@link ClosedEvent}
022 * s.
023 * 
024 * @since 2.0.4.0
025 * 
026 * @author Dominik Mayer
027 * 
028 */
029public interface HasCloseHandlers {
030
031        /**
032         * Adds a {@link CloseHandler} to the widget.
033         * 
034         * @param handler
035         *            the handler
036         * @return {@link HandlerRegistration} used to remove this handler
037         */
038        HandlerRegistration addCloseHandler(CloseHandler handler);
039
040        /**
041         * Adds a {@link ClosedHandler} to the widget.
042         * 
043         * @param handler
044         *            the handler
045         * @return {@link HandlerRegistration} used to remove this handler
046         */
047        HandlerRegistration addClosedHandler(ClosedHandler handler);
048
049}