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.base.HasSubText;
024import org.gwtbootstrap3.client.ui.constants.Styles;
025import org.gwtbootstrap3.client.ui.html.Div;
026
027import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
028import com.google.gwt.user.client.ui.HasText;
029
030/**
031 * Page header with optional subtext
032 * <p/>
033 * <h3>UiBinder example</h3>
034 * <p/>
035 * <pre>
036 * {@code
037 *     <b:PageHeader subText="Some subtext">Page header title</b:PageHeader>
038 * }
039 * </pre>
040 *
041 * @author Sven Jacobs
042 * @author Joshua Godi
043 */
044public class PageHeader extends Div implements HasText, HasSubText {
045
046    private String heading;
047    private String subText;
048
049    public PageHeader() {
050        setStyleName(Styles.PAGE_HEADER);
051    }
052
053    @Override
054    public void setText(final String text) {
055        heading = text;
056        render();
057    }
058
059    @Override
060    public String getText() {
061        return heading;
062    }
063
064    @Override
065    public void setSubText(final String subText) {
066        this.subText = subText;
067        render();
068    }
069
070    @Override
071    public String getSubText() {
072        return subText;
073    }
074
075    private void render() {
076        final SafeHtmlBuilder builder = new SafeHtmlBuilder();
077
078        builder.appendHtmlConstant("<h1>");
079        builder.appendEscaped(heading == null ? "" : heading);
080
081        if (subText != null && !subText.isEmpty()) {
082            builder.appendEscaped(" ");
083            builder.appendHtmlConstant("<small>");
084            builder.appendEscaped(subText);
085            builder.appendHtmlConstant("</small>");
086        }
087
088        builder.appendHtmlConstant("</h1>");
089
090        getElement().setInnerSafeHtml(builder.toSafeHtml());
091    }
092}