FileDocCategorySizeDatePackage
SimpleLinkListener.javaAPI DocExample2472Thu Oct 24 20:14:28 BST 2002None

SimpleLinkListener

public class SimpleLinkListener extends Object implements HyperlinkListener

Fields Summary
private JEditorPane
pane
private JTextField
urlField
private JLabel
statusBar
Constructors Summary
public SimpleLinkListener(JEditorPane jep, JTextField jtf, JLabel jl)

    pane = jep;
    urlField = jtf;
    statusBar = jl;
public SimpleLinkListener(JEditorPane jep)

    this(jep, null, null);
Methods Summary
public voidhyperlinkUpdate(javax.swing.event.HyperlinkEvent he)

    HyperlinkEvent.EventType type = he.getEventType();
    if (type == HyperlinkEvent.EventType.ENTERED) {
      // Enter event.  Fill in the status bar.
      if (statusBar != null) {
        statusBar.setText(he.getURL().toString());
      }
    }
    else if (type == HyperlinkEvent.EventType.EXITED) {
      // Exit event.  Clear the status bar.
      if (statusBar != null) {
        statusBar.setText(" "); // Must be a space or it disappears
      }
    }
    else if (type == HyperlinkEvent.EventType.ACTIVATED) {
      // Jump event.  Get the URL, and, if it's not null, switch to that
      // page in the main editor pane and update the "site url" label.
      if (he instanceof HTMLFrameHyperlinkEvent) {
        // Ahh, frame event; handle this separately.
        HTMLFrameHyperlinkEvent  evt = (HTMLFrameHyperlinkEvent)he;
        HTMLDocument doc = (HTMLDocument)pane.getDocument();
        doc.processHTMLFrameHyperlinkEvent(evt);
      } else {
        try {
          pane.setPage(he.getURL());
          if (urlField != null) {
            urlField.setText(he.getURL().toString());
          }
        }
        catch (FileNotFoundException fnfe) {
          pane.setText("Could not open file: <tt>" + he.getURL() + 
                       "</tt>.<hr>");
        }
        catch (Exception e) {
          e.printStackTrace();
        }
      }
    }