[CompStrm Wiki] A back button needed for the Swing browser--Interested in working on this?

[Bill la F. <laf...@ya...>]

/*
 * Doc.java
 *
 * Created on April 8, 2006, 8:27 AM
 */

package org.agilewiki.swingclient;

import org.agilewiki.events.Event;
import org.agilewiki.events.EventComposer;

/**
 *
 * @author  Bill
 */
public class Doc extends javax.swing.JPanel 
{
  SwingClient frame;
  
  /** Creates new form Doc */
  public Doc(SwingClient frame, Event docEvent)
  {
    this.frame=frame;
    initComponents();
    String text=docEvent.text();
    this.content.setText(text);
  }
  
  /** This method is called from within the constructor to
   * initialize the form.
   * WARNING: Do NOT modify this code. The content of this method is
   * always regenerated by the Form Editor.
   */
  // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
  private void initComponents()
  {
    jScrollPane1 = new javax.swing.JScrollPane();
    content = new javax.swing.JEditorPane();
    link = new javax.swing.JTextField();

    content.setEditable(false);
    content.setContentType("text/html");
    content.addHyperlinkListener(new javax.swing.event.HyperlinkListener()
    {
      public void hyperlinkUpdate(javax.swing.event.HyperlinkEvent evt)
      {
        onHyperLink(evt);
      }
    });

    jScrollPane1.setViewportView(content);

    link.setEditable(false);

    org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(this);
    this.setLayout(layout);
    layout.setHorizontalGroup(
      layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
      .add(link, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 400, Short.MAX_VALUE)
      .add(jScrollPane1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 400, Short.MAX_VALUE)
    );
    layout.setVerticalGroup(
      layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
      .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
        .add(jScrollPane1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 291, Short.MAX_VALUE)
        .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
        .add(link, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
    );
  }// </editor-fold>//GEN-END:initComponents

  private void onHyperLink(javax.swing.event.HyperlinkEvent evt)//GEN-FIRST:event_onHyperLink
  {//GEN-HEADEREND:event_onHyperLink
    if (evt.getEventType()==javax.swing.event.HyperlinkEvent.EventType.ACTIVATED)
    {
      String url=evt.getDescription();
      final String PREFIX="AwServlet?cmd=";
      if (url.startsWith(PREFIX))
      {
        String input=url.substring(PREFIX.length());
        EventComposer composer=new EventComposer();
        composer.startEvent("Request");
        composer.attribute("line",input);
        composer.endEvent("Request");
        Event requestEvent=composer.getRootEvent();
        frame.request(requestEvent);
        return;
      }
      javax.swing.JEditorPane pane=(javax.swing.JEditorPane)evt.getSource();
      if (evt instanceof javax.swing.text.html.HTMLFrameHyperlinkEvent) 
      {
         javax.swing.text.html.HTMLFrameHyperlinkEvent e=(javax.swing.text.html.HTMLFrameHyperlinkEvent)evt;
         javax.swing.text.html.HTMLDocument doc=(javax.swing.text.html.HTMLDocument)pane.getDocument();
         doc.processHTMLFrameHyperlinkEvent(e);
      } else 
      {
         try 
         {
             pane.setPage(evt.getURL());
         } catch (Throwable t) 
         {
             t.printStackTrace();
         }
      }
    }
    else if (evt.getEventType() == javax.swing.event.HyperlinkEvent.EventType.ENTERED)
    {
      String url=evt.getDescription();
      this.link.setText(url);
    }
    else if (evt.getEventType() == javax.swing.event.HyperlinkEvent.EventType.EXITED)
    {
      String url=evt.getDescription();
      this.link.setText("");
    }
    
  }//GEN-LAST:event_onHyperLink
  
  
  // Variables declaration - do not modify//GEN-BEGIN:variables
  private javax.swing.JEditorPane content;
  private javax.swing.JScrollPane jScrollPane1;
  private javax.swing.JTextField link;
  // End of variables declaration//GEN-END:variables
  
}