Re: Querying ISimpleDOMDocument on MozillaWindowClass returns 0x80004002 with FF 3.0.7 (works fine with 3.0.6 & 3.1B2 !)

On 7 mar, 11:45, Sylvain <[email protected]> wrote:
> On 7 mar, 09:21, Marco Zehe <[email protected]> wrote:
>
>
>
>
>
> > Sylvain,
>
> > There was a change we made to QueryService for Firefox 3.0.7, see bug
> > 458871 <https://bugzilla.mozilla.org/show_bug.cgi?id=458871>. We didn't
> > change QueryInterface, though. What happens if you pass in the
> > iSimpleDomNode IID instead of iSimpleDOMDocument?
>
> > Marco
>
> > On 06.03.2009 00:26, [email protected] wrote:
>
> > > Hi all,
>
> > > This little peace of  code works fine with Firefox 3.0.6 and Firefox
> > > 3.1B2, but does not with Firefox 3.0.7!
>
> > > My aim is to get the current document URL, and w is the handle to the
> > > "MozillaWindowClass" class Window :
>
> > > hr=AccessibleObjectFromWindow(tSuivi.w,(DWORD)
> > > OBJID_CLIENT,IID_IAccessible,(void**)&pAccessible);
> > > if (FAILED(hr)) ...
> > > varStart.vt=VT_I4;
> > > varStart.lVal=CHILDID_SELF;
> > > hr=pAccessible->accNavigate(0x1009,varStart,&varResult); // 0x1009 =
> > > NAVRELATION_EMBEDS
> > > if (FAILED(hr)) ...
> > > if (varResult.vt!=VT_DISPATCH) ...
> > > pIDispatch=(IDispatch *)varResult.lVal;
> > > if (pIDispatch==NULL) ...
> > > hr =pIDispatch->QueryInterface(IID_ISimpleDOMDocument, (void**)
> > > &pSimpleDOMDocument);
> > > if (FAILED(hr)) ...
> > > hr = pSimpleDOMDocument->get_URL(&bstrURL);
> > > if (FAILED(hr)) ...
>
> > > The "pIDispatch->QueryInterface(IID_ISimpleDOMDocument, (void**)
> > > &pSimpleDOMDocument);" statement returns 0x80004002. So I cannot get
> > > my URL...
>
> > > Any clue?
>
> > > Thanks!
>
> > > - Sylvain
>
> > > Aaron, if you're reading this, I would be very pleased if you could
> > > help :-).- Masquer le texte des messages précédents -
>
> > - Afficher le texte des messages précédents -
>
> Marco,
>
> Thank you for your response. Unfortunately, QueryInterface with
> IID_ISimpleDOMNode also fails with 0x80004002 error code.
>
> This error code means E_NOINTERFACE, while the change you made in
> 3.0.7 seems to return the E_INVALIDARG error code.
>
> Another idea ?
>
> - Sylvain- Masquer le texte des messages précédents -
>
> - Afficher le texte des messages précédents -

Yes ! I've just found the solution ! Here is the code that works fine
to retrieve current document URL with Firefox 3.0.7 and Firefox
3.1B2 :

(w is the handle of the "MozillaContentWindowClass" class window)

hr=AccessibleObjectFromWindow(tSuivi.w,(DWORD)
OBJID_CLIENT,IID_IAccessible,(void**)&pAccessible);
if (FAILED(hr)) ...
hr =pAccessible->QueryInterface(IID_IServiceProvider, (void**)
&pServiceProvider);
if (FAILED(hr)) ...
hr =pServiceProvider->QueryService(refguid,IID_ISimpleDOMDocument,
(void**) &pSimpleDOMDocument);
if (FAILED(hr)) ...
hr = pSimpleDOMDocument->get_URL(&bstrURL);
if (FAILED(hr)) ...

:-)

- Sylvain