JEditorPane and HyperlinkEvent : HyperlinkListener « Swing Event « Java Tutorial

1. Java Tutorial
2. Swing Event
3. HyperlinkListener

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.URL;

import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JToolBar;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;

public class MainClass extends JFrame {
  protected JEditorPane mEditorPane;

  protected JTextField mURLField;

  public MainClass() {
    super();
    JToolBar urlToolBar = new JToolBar();
    mURLField = new JTextField(40);
    urlToolBar.add(new JLabel("Location:"));
    urlToolBar.add(mURLField);
    frame.add(urlToolBar, BorderLayout.NORTH);

    mEditorPane = new JEditorPane();
    mEditorPane.setEditable(false);
    frame.add(new JScrollPane(mEditorPane), BorderLayout.CENTER);

    openURL("http://www.java2s.com");

    mURLField.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent ae) {
        openURL(ae.getActionCommand());
      }
    });

    mEditorPane.addHyperlinkListener(new LinkActivator());

    setSize(500, 600);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }

  protected void openURL(String urlString) {
    try {
      URL url = new URL(urlString);
      mEditorPane.setPage(url);
      mURLField.setText(url.toExternalForm());
    } catch (Exception e) {
      System.out.println("Couldn't open " + urlString + ":" + e);
    }
  }

  class LinkActivator implements HyperlinkListener {
    public void hyperlinkUpdate(HyperlinkEvent he) {
      HyperlinkEvent.EventType type = he.getEventType();
      if (type == HyperlinkEvent.EventType.ACTIVATED)
        openURL(he.getURL().toExternalForm());
    }
  }

  public static void main(String[] args) {
    new MainClass().setVisible(true);
  }
}

15.18.HyperlinkListener
	15.18.1.	HyperlinkListener Example
	15.18.2.	JEditorPane and HyperlinkEvent