Embedding Non-GUI mozilla components

Yogish Baliga Tue, 24 May 2005 17:34:25 -0700

Hello All,

  I am trying to write an application with Mozilla Embedding. I do not want any 
UI involved in this application.
This is a pure backend application.


  Here is what I want to acheive:

    1. Load a URL.
    2. Save the Document generated after any embedded javascript(s) are 
executed.

I did the following:

  nsCOMPtr<nsILocalFile> nsFile;
  NS_NewLocalFile(NS_LITERAL_STRING("/usr/X11R6/lib/firefox"), TRUE, 
getter_AddRefs(nsFile));

  nsresult rv = NS_InitEmbedding(nsFile, nsnull);
  if (rv != NS_OK) {
    cerr << "Embedding failed.." << rv << endl;
    exit(1);
  }

  nsCOMPtr<nsIComponentRegistrar> registrar;
  rv = NS_GetComponentRegistrar(getter_AddRefs(registrar));
  if (NS_FAILED(rv)) {
    cerr << "Failed to get component registrar.." << endl;
    exit (1);
  }

  nsCOMPtr<nsILocalFile> componentDir;
  NS_NewLocalFile(NS_LITERAL_STRING("/usr/X11R6/lib/firefox/components"), 
false, getter_AddRefs(componentDir));
  rv = registrar->AutoRegister(componentDir);
  if (NS_FAILED(rv)) {
    cerr << "Auto registration failed" << endl;
  }



  nsCOMPtr<nsIServiceManager> servMan;
  nsresult r = NS_GetServiceManager(getter_AddRefs(servMan));

  if (NS_FAILED(r)) {
    cerr << "Failed to get service manager.." << endl;
  }

  nsCOMPtr<nsIComponentManager> compMan;
  if (NS_FAILED(NS_GetComponentManager(getter_AddRefs(compMan))) ) {
    cerr << "Failed to  component manager.." << endl;
  }

  nsCOMPtr<nsIWebNavigation> docShell = do_GetService("@mozilla.org/webshell;1", 
&r);
  if (NS_FAILED(r)) {
    fprintf(stderr, "%x\n", r);
    cerr << "failed to get web browser component.." << NS_FAILED(r) << endl;
    exit (1);
  }


  nsCOMPtr<nsIIOService> ioService = nsnull;

r = servMan->GetServiceByContractID("@mozilla.org/network/io-service;1", NS_GET_IID(nsIIOService),getter_AddRefs(ioService));

  if (NS_FAILED(r)) {
    cerr << "Failed to get IO Service" << endl;
    exit (1);
  }

  if (ioService) {
    nsCOMPtr<nsIURI> uri = nsnull;
    ioService->NewURI(NS_LITERAL_CSTRING("http://www.yahoo.com";), nsnull, 
nsnull, getter_AddRefs(uri));

    nsEmbedString  scheme;
    uri->GetScheme(scheme);
    cerr << "Scheme is " << scheme.get() << endl;

    PRBool flag = PR_TRUE;

r = docShell->LoadURI(NS_ConvertASCIItoUTF16("http://www.yahoo.com";).get(), nsIWebNavigation::LOAD_FLAGS_NONE,nsnull, nsnull, nsnull);

    fprintf(stderr, "Succes : %x\n", r);

    sleep(5); // wait for the page to load. Did not find any addListener 
method(s) in nsIWebNavigation

    nsCOMPtr<nsIDOMDocument> dom;
    docShell->GetDocument(getter_AddRefs(dom));
    if (!dom) {
      cerr << "Failed to get DOM.." << endl;
      return 0;
    }

    saveDocument(dom.get(), "", "/home/baliga/tmp/localfile.html"); // I could 
save DOM into a file
}

Here saveDocument Always save following content into localfile.html

<html><head><base href="about:blank"></head><body></body></html>


I am doing something wrong here.. Don't know what yet. Any pointer would be 
greatly appreciated.

Thanks,
-- Yogish

begin:vcard
fn:Yogish Baliga
n:Baliga;Yogish
org:Yahoo! Inc
email;internet:[EMAIL PROTECTED]
title:Senior Technical Yahoo!
tel;work:(408)-349-7450
tel;fax:(408)-349-5454
tel;pager:[EMAIL PROTECTED]
x-mozilla-html:FALSE
url:http://billpay.yahoo.com
version:2.1
end:vcard

Embedding Non-GUI mozilla components

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