Name: gsC80088 Date: 03/24/99


When an Applet try to lauch an HTML page within a Browser
this does not view any page. I currently use Plug-in 1.1.2
and Swing 1.1

The following code always worked in the 1.1 plug-ins with
Swing 1.0.

I wonder wether this is a problem of the plug-ins or Netscape
4.5. Could you please offer advice on this if you can
prove this is not a bug.

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.net.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;

public class BrowserViewer extends Object
{
  // A full path name local to where the applet run
  // e.g. "user/BusinessPlan.html";
  String theFileName;
  // valid values are "anyname", "_self", "_parent", "_top" and "_blank"
  String theBrowserDestination = "name";
  URL theTargetURL;
  java.applet.Applet theApplet;

  public BrowserViewer(java.applet.Applet anApplet, String aFileName)
  {
    theApplet = anApplet;
    theFileName = aFileName;
    
    theFileName = replace(theFileName, "\\", "/");
    
    if (theFileName.indexOf("file:/") == -1)
    {
      theFileName = "file:/" + theFileName;
    }
    
    //System.out.println(theFileName);
  }
    
  public boolean view()
  {
      // Display the file name in the browser.
      AppletContext context = theApplet.getAppletContext();
      theTargetURL = getURL(theFileName);
      
      if ( theTargetURL == null)
      {
        return false;
      }
      else
      {
        context.showDocument(theTargetURL,theBrowserDestination);
        return true;
      }
  }
  
  private URL getURL(String aFileName)
  {
      // aFileName is full qualified URL file name e.g. file://C:\windows..
      URL url;
      // get the URL given a file name
      try
      {
            if (theApplet == null)
            {
              System.err.print("Viewing in a stand-alone application is not yet supported.");
              // add here spawinig the browser with the required HTML or view in the
              // the view Tabbed Panel.
              return null;
            }
            else
            {
              try
              {
                url = new URL(aFileName);
                return url;
              }
              catch(MalformedURLException e)
              {
                System.err.println("MalformedURLException in " + aFileName);
                return null;
              }
           }
      }
      catch (Exception anException)
      {
        System.err.println("Exception: " + anException.toString());
        return null;
      }
    } // End of getURL method.
    

    public String getBrowserDestination()
    {
       return this.theBrowserDestination;
    }

    public void setBrowserDestination(String theBrowserDestination)
    {
        this.theBrowserDestination = theBrowserDestination;
    }
             
    public String getFileName()
    {
        return this.theFileName;
    }
    public void setFileName(String theFileName)
    {
         this.theFileName = theFileName;
    }
    public URL getTargetURL()
    {
         return this.theTargetURL;
    }

    private void setTargetURL(URL theTargetURL)
    {
         this.theTargetURL = theTargetURL;
    }
    
    private String replace(String aDir, String anOld, String aNew)
    {
      String myDir = new String("");
      int nTok = getNoOfTokens(aDir, anOld);
        
      StringTokenizer myTok = new StringTokenizer(aDir,anOld);
      for (int i = 0; i < nTok; i++)
      {
        if ( i == nTok - 1)
        {
          myDir = myDir + myTok.nextToken();
        }
        else
        {
          myDir = myDir + myTok.nextToken() + aNew;
        }
      }
      return myDir;
  }
    
    
    private int getNoOfTokens(String aDir, String aSeparator)
    {
      int mySize = 0;
      StringTokenizer myTok = new StringTokenizer(aDir,aSeparator);
      while (myTok.hasMoreTokens())
      {
        myTok.nextToken();
        mySize++;
      }
      return mySize;
    }
    
}
(Review ID: 52996)
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