Hi,
I had a quick look and got it working using this:
nsIURIContentListener* uriContentListener;
chrome->QueryInterface(nsIURIContentListener::GetIID(),
(void**)&uriContentListener);
rv = webBrowser->SetParentURIContentListener(uriContentListener);
However you also need to make WebBrowserChrome support weak references
or you will get assertions. This is done by:
in WebBrowserChrome.h:
#include "nsWeakReference.h"
also inherit WebBrowserChrome from nsSupportsWeakReference
and in WebBrowserChrome.cpp:
add NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference) to the interface map
Hope this helps,
-Pelle
poopdawg wrote:
> im trying to extend pelle's win32 sample code by adding a URI
> listener.
>
> i inherited & stubbed nsIURIContentListener in webbrowserchrome.
>
> i added this line after baseWindow->Create():
>
> //rv returns 0
> rv = webBrowser-
>> SetParentURIContentListener((nsIURIContentListener*)(chrome.get()) );
>
> i get a unhandled exception (0×0041b025) when i click on a link. here
> is the stack:
>
> nsCOMPtr_base::assign_with_AddRef()
> nsCOMPtr::operator=(nsIWebBrowser * rhs=0×025371d0)
> WebBrowserChrome::SetWebBrowser(nsIWebBrowser *
> aWebBrowser=0×025371d0)
>
> im new to mozilla stuff - am i creating the listener correctly? do i
> need to replace the assignment with some sort of addref?
>
> thanks
> amitabh
>
> ------------------------------------
>
> NS_IMETHODIMP WebBrowserChrome::SetWebBrowser(nsIWebBrowser *
> aWebBrowser)
> {
> mWebBrowser = aWebBrowser;
> return NS_OK;
> }
>
> -----------------------------------
>
> nsresult MozEmbed::CreateBrowser(void* aNativeWindow, PRInt32 x,
> PRInt32 y, PRInt32 width, PRInt32 height)
> {
> nativeWindow = aNativeWindow;
>
> nsresult rv;
>
> nsCOMPtr<nsIBaseWindow> baseWindow;
> webBrowser = do_CreateInstance(NS_WEBBROWSER_CONTRACTID, &rv);
> if (NS_FAILED(rv)) {
> printf("do_CreateInstance webBrowser\n");
> }
> baseWindow = do_QueryInterface(webBrowser);
> rv = baseWindow->InitWindow(nativeWindow, 0, x, y, width, height);
> if (NS_FAILED(rv)) {
> printf("InitWindow\n");
> }
>
> nsIWebBrowserChrome **aNewWindow = getter_AddRefs(chrome);
> CallQueryInterface(static_cast<nsIWebBrowserChrome*>(new
> WebBrowserChrome(this)), aNewWindow);
> rv = webBrowser->SetContainerWindow(chrome.get());
> chrome->SetWebBrowser(webBrowser);
>
> rv = baseWindow->Create();
> if (NS_FAILED(rv)) {
> printf("Create\n");
> }
>
> //*** AG - listener code ***
> rv = webBrowser-
>> SetParentURIContentListener((nsIURIContentListener*)(chrome.get()) );
>
> rv =baseWindow->SetVisibility(PR_TRUE);
> if (NS_FAILED(rv)) {
> printf("SetVisibility\n");
> }
>
> webNavigation = do_QueryInterface(webBrowser);
>
> SetFocus(true);
>
> return 0;
> }
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