001package org.gwtbootstrap3.client.ui;
002
003/*
004 * #%L
005 * GwtBootstrap3
006 * %%
007 * Copyright (C) 2013 GwtBootstrap3
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 * 
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 * 
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023import org.gwtbootstrap3.client.ui.constants.Styles;
024import org.gwtbootstrap3.client.ui.html.UnorderedList;
025
026import com.google.gwt.dom.client.Element;
027import com.google.gwt.user.client.ui.Widget;
028
029/**
030 * @author Joshua Godi
031 */
032public class ListGroup extends UnorderedList {
033
034    public ListGroup() {
035        setStyleName(Styles.LIST_GROUP);
036    }
037
038    @Override
039    public void add(final Widget child) {
040        if (!(child instanceof ListGroupItem)) {
041            throw new IllegalArgumentException("Only ListGroupItems can be inside a ListGroup.");
042        }
043
044        add(child, (Element) getElement());
045    }
046}