htmlfactory.java

java pos,你可以直接编译运行,

/*
 * Copyright (c) 2000 jPOS.org.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *    "This product includes software developed by the jPOS project
 *    (http://www.jpos.org/)". Alternately, this acknowledgment may
 *    appear in the software itself, if and wherever such third-party
 *    acknowledgments normally appear.
 *
 * 4. The names "jPOS" and "jPOS.org" must not be used to endorse
 *    or promote products derived from this software without prior
 *    written permission. For written permission, please contact
 *    [e-mail].
 *
 * 5. Products derived from this software may not be called "jPOS",
 *    nor may "jPOS" appear in their name, without prior written
 *    permission of the jPOS project.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE JPOS PROJECT OR ITS CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the jPOS Project.  For more
 * information please see <http://www.jpos.org/>.
 */
package org.jpos.ui.factory;

import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.html.*;
import org.jdom.Element;
import java.net.URL;
import org.jpos.ui.UI;
import org.jpos.ui.UIFactory;

/**
 * @author Alejandro Revilla
 *
 * Creates an html browser/editor
 * i.e:
 * <pre>
 *  &lt;html editable="false" follow-links="true" scrollable="true"&gt;
 *    http://jpos.org
 *  &lt;/html&gt;
 * </pre>
 * @see org.jpos.ui.UIFactory
 */
public class HtmlFactory implements UIFactory {
    public JComponent create (UI ui, Element e) {
        try {
            JEditorPane editorPane = new JEditorPane (e.getText());
            editorPane.setEditable (
                "true".equals (e.getAttributeValue ("editable"))
            );
            if ("true".equals (e.getAttributeValue ("follow-links")))
                editorPane.addHyperlinkListener (new Listener ());
            return editorPane;
        } catch (Exception ex) {
            return new JLabel (ex.getMessage());
        }
    }
    class Listener implements HyperlinkListener {
        public void hyperlinkUpdate(HyperlinkEvent e) {
            if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
                JEditorPane pane = (JEditorPane) e.getSource();
                if (e instanceof HTMLFrameHyperlinkEvent) {
                    HTMLFrameHyperlinkEvent  evt = (HTMLFrameHyperlinkEvent)e;
                    HTMLDocument doc = (HTMLDocument)pane.getDocument();
                    doc.processHTMLFrameHyperlinkEvent(evt);
                } else {
                    try {
                        pane.setPage(e.getURL());
                    } catch (Throwable t) {
                        t.printStackTrace();
                    }
                }
            }
        }
    }
}