Re: Embedding Gecko/XULRunner

[Denis Lazarev]

On 19.02.2011 3:46, moz_embedder wrote:

I think am able to initialise the browser by QI-ing for nsBaseWindow
and then init and then create. I think it s initialised properly
because the return code on loading a URL through nsIWebNavigation is
OK.
I am not displaying anything since I am trying to run offscreen and I
only have the codes to work with. However, I cannot get to the
nsIDOMWindow (I get null) by doing:

nsCOMPtr<nsIDOMWindow>  mDomWin;
mWebBrowser->GetContentDOMWindow(getter_AddRefs(mDomWin));

Any suggestions??
Here is a snippet with all the initialisations going on:


nsCOMPtr<nsIWebBrowser>  mWebBrowser =
do_CreateInstance(NS_WEBBROWSER_CONTRACTID,&rv);
     if (NS_FAILED(rv)) {
         std::cout<<  "Couldn't create Web Browser"<<  std::endl;
         exit(1);
     }

     nsCOMPtr<nsIWebNavigation>  mWebNav =
do_QueryInterface(mWebBrowser,&rv);
     if (NS_FAILED(rv)) {
         std::cout<<  "Couldn't create Web Nav"<<  std::endl;
         exit(1);
     }

     nsCOMPtr<nsIBaseWindow>  baseWindow =
do_QueryInterface(mWebBrowser,&rv);
     if (NS_FAILED(rv)) {
         std::cout<<  "Couldn't QI base win"<<  std::endl;
         exit(1);
     }

     WebBrowserChrome *cw = new WebBrowserChrome();
     mWebBrowser->SetContainerWindow(static_cast<nsIWebBrowserChrome*>
(cw));

     WebBrowserChromeUI *nw = new WebBrowserChromeUI(); //empty - I
dont want to display stuff
     rv = baseWindow->InitWindow(nw, nsnull, 0, 0, 0, 0);
     if (NS_FAILED(rv)) {
         std::cout<<  "Couldn't init base win"<<  std::endl;
         exit(1);
     }

     rv = baseWindow->Create();
     if (NS_FAILED(rv)) {
         std::cout<<  "Couldn't create base win"<<  std::endl;
         exit(1);
     }

     rv = mWebNav->LoadURI(
             NS_ConvertASCIItoUTF16("http://www.google.com/";).get(),
             nsIWebNavigation::LOAD_FLAGS_NONE,
             nsnull,
             nsnull,
             nsnull);
     if (NS_FAILED(rv)) {
         std::cout<<  "Couldn't load URL: "<<  std::endl;
         exit(1);
     } else {
         std::cout<<  "Maybe loaded url"<<  std::endl; //reaches
here :) :) :)
     }



     nsCOMPtr<nsIDOMDocument>  mDomDoc;
     nsCOMPtr<nsIDOMWindow>  mDomWin;
     rv = mWebBrowser->GetContentDOMWindow(getter_AddRefs(mDomWin));
     if(mDomWin) { // mDomWin is NULL here :( :( :(
         mDomWin->GetDocument(getter_AddRefs(mDomDoc));
         if(!mDomDoc)
             std::cout<<  "Cannot get DOM doc"<<  std::endl;
     } else {
         std::cout<<  "Cannot get dom win "<<  std::endl;
     }

Hello Peter,

Have you implemented nsIInterfaceRequestor for WebBrowserChrome class?

Best regards,
Denis Lazarev.
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