001    package org.gwtbootstrap3.client.ui;
002    
003    /*
004     * #%L
005     * GwtBootstrap3
006     * %%
007     * Copyright (C) 2013 - 2014 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    
023    import org.gwtbootstrap3.client.ui.constants.Styles;
024    import org.gwtbootstrap3.client.ui.html.Div;
025    
026    import com.google.gwt.user.client.ui.Widget;
027    
028    /**
029     * Container widget for the tab content
030     * <p/>
031     * <a href="http://getbootstrap.com/javascript/#tabs">Bootstrap Documentation</a>
032     * <p/>
033     * <h3>UiBinder example</h3>
034     * <p/>
035     * <pre>
036     * {@code
037     * <b:TabContent>
038     *    <b:TabPane/>
039     *    <b:TabPane/>
040     * </b:TabContent>
041     * }
042     * </pre>
043     *
044     * @author Joshua Godi
045     * @see org.gwtbootstrap3.client.ui.TabPane
046     */
047    public class TabContent extends Div {
048    
049        /**
050         * Creates the default widget with the default styles
051         */
052        public TabContent() {
053            setStyleName(Styles.TAB_CONTENT);
054        }
055    
056        /**
057         * We override the add to make sure only children of type TabPane can be added!
058         *
059         * @param child widget to be added
060         * @see org.gwtbootstrap3.client.ui.TabPane
061         */
062        @Override
063        public void add(final Widget child) {
064            if (!(child instanceof TabPane)) {
065                throw new IllegalArgumentException("TabContent must have children of type TabPane.");
066            }
067            super.add(child);
068        }
069    }