Multiple JDIC browsers integrated into Processing sketch

A while back I posted a simple hack to open a web browser from Processing by using JDesktop Integration Components (JDIC). A recent discussion on the Processing forums asked about how to use it to open multiple browsers inside the actual Processing sketch window.

My original hack used an instance of org.jdesktop.jdic.browser.WebBrowser integrated into a java.awt.Panel instance and laid out in a java.awt.Frame. That meant that the browser would open in an external window. The discussion on the Processing forum asked specifically about opening multiple browsers in the main sketch window, so I made the following quick hack.

I’m posting the actual code below, but to run the example you should download the following ZIP file: JDIC_multiple.zip. It includes the JDIC binaries required to run it on Windows.

// JDIC_multiple.pde
// Marius Watz - http://workshop.evolutionzone.com

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

import java.net.URL;
import java.net.MalformedURLException;
import org.jdesktop.jdic.browser.*;

aBrowser browser[];
long last;

void setup() {
  size(800,600);
  frame.setLayout(new GridLayout(2,2));

  browser=new aBrowser[4];
  for(int i=0; i<4; i++) {
    browser[i]=new aBrowser();
    browser[i].initPanel(400,300);

    if(i==0) browser[i].setURL("http://www.google.com/");
    if(i==1) browser[i].setURL("http://processing.org/");
    if(i==2) browser[i].setURL("http://ffffound.com/");
    if(i==3) browser[i].setURL("http://sojamo.tumblr.com/"); 

    frame.add(browser[i].panel);
  }
}

void draw() {

}

public class aBrowser {
  Panel panel;
  WebBrowser webBrowser;

  public aBrowser() {
    // Set engine to IE
    BrowserEngineManager mng=BrowserEngineManager.instance();
    mng.setActiveEngine(BrowserEngineManager.IE);
    webBrowser = new WebBrowser();
  }

  public void initPanel(int w,int h) {
    panel = new Panel();
    panel.setLayout(new BorderLayout());
    panel.setSize(w,h);
    webBrowser.setSize(w, h);
    panel.add(webBrowser, BorderLayout.CENTER);
  }

  public void setContent(String htmlContent) {
    webBrowser.setContent(htmlContent);
  }

  public void setURL(String url) {
    try {
      webBrowser.setURL(new URL(url));
      webBrowser.setDebug(false);
    }
    catch (MalformedURLException e) {
      System.out.println(e.getMessage());
      return;
    }
  }
}