Embed Firefox browser in Java Swing

As answered here (Best Java/Swing browser component?) - and from my own testing - djproject seems to be the best.

It has last been updated March 2009 and some demo links are broken.. so the project seems not to be too active right now.. Still: When I needed it in 2010 it was awesome.

Absolutely I have done it before please check out the Mozilla Embedding for Java

Here is some sample code

import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.FileNotFoundException; 
import java.io.File; 

import javax.swing.*;

import org.mozilla.xpcom.*; 
import org.mozilla.interfaces.*;

/*
Websites ref
http://groups.google.com/group/mozilla.dev.tech.java/browse_thread/thread/898ba6751d0c57f7 
http://skrul.com/blog/code/
http://wirestorm.net/blog/?cat=9

*/


public class BrowserTest  implements nsIWebProgressListener,nsIWeakReference, nsIInterfaceRequestor, nsIWebBrowserChrome, nsISHistoryListener{ 
    static {
        try {
            System.loadLibrary("NativeWindow");
        } catch (UnsatisfiedLinkError e) {
            System.err.println("can't find your library");
        }
    }
    private static final String frameTitle="GRE Embedded";
    public static void main(String[] args) {
        BrowserConroller controler=new BrowserConroller();
        controler.run();
        new BrowserTest().start();
    } 

    public void start(){


        JFrame f = new JFrame( frameTitle );
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setSize(400, 150);
        Container content = f.getContentPane();
        content.setBackground(Color.white);
        content.setLayout(new FlowLayout()); 
        content.add(new JLabel("Initializing ... "));
        f.setVisible(true);

        File grePath = null; 
        LocationProvider locProvider; 
        Mozilla mozilla = Mozilla.getInstance(); 

        GREVersionRange[] range = new GREVersionRange[1]; 
        range[0] = new GREVersionRange("1.8.0", true, "1.9", false); 

        try { 
            grePath = Mozilla.getGREPathWithProperties(range, null);
            mozilla.initialize(grePath);
            locProvider = new LocationProvider(grePath); 
            mozilla.initEmbedding(grePath, grePath, locProvider); 
        } 

        catch (FileNotFoundException e) { 
            System.out.println("Error: FileNotFoundException"); 
        } 
        catch (XPCOMException e) { 
            System.out.println("Error: XPCOMException"); 
        } 


        //---------- END GRE INITIALIZATION------------


        nsIServiceManager serviceManager = mozilla.getServiceManager(); 

        nsIAppStartup appStartup = (nsIAppStartup)serviceManager.getServiceByContractID("@mozilla.org/toolkit/app-startup;1", nsIAppStartup.NS_IAPPSTARTUP_IID); 
        nsIWindowCreator windowCreator = (nsIWindowCreator)appStartup.queryInterface(nsIWindowCreator.NS_IWINDOWCREATOR_IID); 

        nsIWindowWatcher windowWatcher =(nsIWindowWatcher)serviceManager.getServiceByContractID("@mozilla.org/embedcomp/window-watcher;1",nsIWindowWatcher.NS_IWINDOWWATCHER_IID); 

        windowWatcher.setWindowCreator(windowCreator); 

        nsIDOMWindow win = windowWatcher.openWindow(null, "http://google.com", "MAIN_WIN","chrome,resizable,centerscreen", null);
        windowWatcher.setActiveWindow( win ); 

        nsIComponentManager componentManager = mozilla.getComponentManager();
        String NS_IWEBBROWSER_CID = "F1EAC761-87E9-11d3-AF80-00A024FFC08C"; //$NON-NLS-1$
        nsIWebBrowser webBrowser = (nsIWebBrowser) componentManager.createInstance(NS_IWEBBROWSER_CID, null, nsIWebBrowser.NS_IWEBBROWSER_IID);
        webBrowser.setContainerWindow(this);
        webBrowser.addWebBrowserListener(this, nsIWebProgressListener.NS_IWEBPROGRESSLISTENER_IID);


//      nsIWebNavigation webNavigation=(nsIWebNavigation)webBrowser.queryInterface(nsIWebNavigation.NS_IWEBNAVIGATION_IID);
//      webNavigation.loadURI("http://www.zdnet.com", nsIWebNavigation.LOAD_FLAGS_NONE, null, null, null);
//      

        nsIBaseWindow baseWindow = (nsIBaseWindow) webBrowser.queryInterface(nsIBaseWindow.NS_IBASEWINDOW_IID);             
        long handle=FindWindow.getHWND( frameTitle );

        baseWindow.initWindow(handle, 0, 0, 0,350,350);
        baseWindow.create();
        baseWindow.setVisibility(true);




//      
//      nsIDOMWindow domWin=webBrowser.getContentDOMWindow();
//      nsIDOMEventTarget domEventTarget= (nsIDOMEventTarget)domWin.queryInterface(nsIDOMEventTarget.NS_IDOMEVENTTARGET_IID);
//      domEventTarget.addEventListener("click", new EventListener(), false);
//      
        //Hide JFrame after it have been initialized
        f.setVisible(true);
//      
//      nsIWebNavigation webNavigation=(nsIWebNavigation)webBrowser.queryInterface(nsIWebNavigation.NS_IWEBNAVIGATION_IID);
//      webNavigation.loadURI("http://www.zdnet.com", nsIWebNavigation.LOAD_FLAGS_NONE, null, null, null);
//      
        appStartup.run(); 
        System.out.println("try termEmbedding"); 
        try { 
            System.out.println("mozilla.termEmbedding(); START"); 
            mozilla.termEmbedding(); 
            System.out.println("mozilla.termEmbedding(); FINISHED"); 
        } 
        catch (XPCOMException e) { 
            System.out.println("Fehler: XPCOMException"); 
        } 
        System.out.println("finished termEmbedding"); 
        System.out.println("All done"); 
    }



    public void onLocationChange(nsIWebProgress webProgress, nsIRequest request, nsIURI location) {
        c("onLocationChange");

    }

    public void onProgressChange(nsIWebProgress webProgress, nsIRequest request, int curSelfProgress, int maxSelfProgress, int curTotalProgress, int maxTotalProgress) {
        c("onProgressChange");

    }

    public void onSecurityChange(nsIWebProgress webProgress, nsIRequest request, long state) {
        c("onSecurityChange");

    }

    public void onStateChange(nsIWebProgress webProgress, nsIRequest request, long stateFlags, long status) {
        c("onStateChange");

    }

    public void onStatusChange(nsIWebProgress webProgress, nsIRequest request, long status, String message) {
        c("onStatusChange");

    }

    public nsISupports queryInterface(String uuid) {
        c("queryInterface");
        return null;
    }



    public nsISupports queryReferent(String uuid) {
        c("queryReferent");
        return null;
    }

    public nsISupports getInterface(String uuid) {
        c("getInterface");
        return null;
    }
    private void c(Object o){
        System.out.println(o);
    }

    public void destroyBrowserWindow() {
        c("destroyBrowserWindow");

    }

    public void exitModalEventLoop(long status) {
        c("exitModalEventLoop");

    }

    public long getChromeFlags() {
        c("getChromeFlags");
        return 0;
    }

    public nsIWebBrowser getWebBrowser() {
        c("getWebBrowser");     
        return null;
    }

    public boolean isWindowModal() {
        c("isWindowModal");     
        return false;
    }

    public void setChromeFlags(long chromeFlags) {
        c("setChromeFlags");    

    }

    public void setStatus(long statusType, String status) {
        c("setStatus"); 

    }

    public void setWebBrowser(nsIWebBrowser webBrowser) {
        c("setWebBrowser");         
    }

    public void showAsModal() {
        c("showAsModal");   

    }

    public void sizeBrowserTo(int acx, int acy) {
        c("sizeBrowserTo"); 

    }

    public boolean onHistoryGoBack(nsIURI backURI) {
        c("onHistoryGoBack");
        return false;
    }

    public boolean onHistoryGoForward(nsIURI forwardURI) {
        c("onHistoryGoForward");
        return false;
    }

    public boolean onHistoryGotoIndex(int index, nsIURI gotoURI) {
        c(" onHistoryGotoIndex");
        return false;
    }

    public void onHistoryNewEntry(nsIURI newURI) {
        c(" onHistoryNewEntry");
    }

    public boolean onHistoryPurge(int numEntries) {
        c(" onHistoryPurge");
        return false;
    }

    public boolean onHistoryReload(nsIURI reloadURI, long reloadFlags) {
        c(" onHistoryReload");
        return false;
    }


} //public class JavaXPCOM_test1[/code]