Using Javahelp to open pages in web browser

Question

We have a program which is written in j2se 1.5 and distributed through webstart. currently we are using the javahelp modules which allow us to open context sensitive help in the help viewer, however we would like to show our pages in a standart browser. is it possible to tweak the javahelp setting to allow that?

Answer 1

One way to do it would be to overwrite javax.help.plaf.basic.BasicContentViewerUI. This class contains a method "public void idChanged(HelpModelEvent e)". The HelpModelEvent contains the URL.
Example:
public class YourHelpContentViewerUI extends BasicContentViewerUI {
    public void idChanged(HelpModelEvent e) {
        ID id = e.getID();
        URL url = e.getURL();
        TextHelpModel model = theViewer.getModel();
        model.setDocumentTitle(null);
       try {
           // Lookup the javax.jnlp.BasicService object
           BasicService bs = (BasicService)ServiceManager.lookup("javax.jnlp.BasicService");
           // Invoke the showDocument method
           return bs.showDocument(url);
       } catch(UnavailableServiceException ue) {
           // Service is not supported
}Then you would have to register this class before instantiating javahelp:
       UIDefaults table = UIManager.getDefaults();
       Object[] uiDefaults = {
             "HelpContentViewerUI", <your class>
       table.putDefaults(uiDefaults);