001/*
002 * jPOS Project [http://jpos.org]
003 * Copyright (C) 2000-2026 jPOS Software SRL
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Affero General Public License as
007 * published by the Free Software Foundation, either version 3 of the
008 * License, or (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Affero General Public License for more details.
014 *
015 * You should have received a copy of the GNU Affero General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jpos.ui.factory;
020
021import org.jdom2.Element;
022import org.jpos.ui.UI;
023import org.jpos.ui.UIFactory;
024
025import javax.swing.*;
026import javax.swing.event.HyperlinkEvent;
027import javax.swing.event.HyperlinkListener;
028import javax.swing.text.html.HTMLDocument;
029import javax.swing.text.html.HTMLFrameHyperlinkEvent;
030
031/**
032 * UIFactory that builds a Swing HTML browser/editor pane.
033 *
034 * @author Alejandro Revilla
035 *
036 * Creates an html browser/editor
037 * i.e:
038 * <pre>
039 *  &lt;html editable="false" follow-links="true" scrollable="true"&gt;
040 *    http://jpos.org
041 *  &lt;/html&gt;
042 * </pre>
043 * @see org.jpos.ui.UIFactory
044 */
045public class HtmlFactory implements UIFactory {
046    /** Default constructor for {@link UIFactory} discovery. */
047    public HtmlFactory() {}
048    public JComponent create (UI ui, Element e) {
049        try {
050            JEditorPane editorPane = new JEditorPane (e.getText());
051            editorPane.setEditable (
052                "true".equals (e.getAttributeValue ("editable"))
053            );
054            if ("true".equals (e.getAttributeValue ("follow-links")))
055                editorPane.addHyperlinkListener (new Listener ());
056            return editorPane;
057        } catch (Exception ex) {
058            return new JLabel (ex.getMessage());
059        }
060    }
061    static class Listener implements HyperlinkListener {
062        public void hyperlinkUpdate(HyperlinkEvent e) {
063            if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
064                JEditorPane pane = (JEditorPane) e.getSource();
065                if (e instanceof HTMLFrameHyperlinkEvent) {
066                    HTMLFrameHyperlinkEvent  evt = (HTMLFrameHyperlinkEvent)e;
067                    HTMLDocument doc = (HTMLDocument)pane.getDocument();
068                    doc.processHTMLFrameHyperlinkEvent(evt);
069                } else {
070                    try {
071                        pane.setPage(e.getURL());
072                    } catch (Throwable t) {
073                        t.printStackTrace();
074                    }
075                }
076            }
077        }
078    }
079}
080