C++ (Cpp) REFNSIID::Equals示例

示例#1

文件： wspproxy.cpp 项目： EdgarChen/mozilla-cvs-history

NS_IMETHODIMP
WSPProxy::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
  if (aIID.Equals(NS_GET_IID(nsISupports))) {
    *aInstancePtr = static_cast<nsIXPTCProxy*>(this);
    NS_ADDREF_THIS();
    return NS_OK;
  }
  if(mXPTCStub && mIID && aIID.Equals(*mIID)) {
    *aInstancePtr = mXPTCStub;
    NS_ADDREF_THIS();
    return NS_OK;
  }
  else if (aIID.Equals(NS_GET_IID(nsIWebServiceProxy))) {
    *aInstancePtr = static_cast<nsIWebServiceProxy*>(this);
    NS_ADDREF_THIS();
    return NS_OK;
  }
  else if (aIID.Equals(NS_GET_IID(nsIClassInfo))) {
    *aInstancePtr = static_cast<nsIClassInfo*>(this);
    NS_ADDREF_THIS();
    return NS_OK;
  }

  return NS_ERROR_NO_INTERFACE;
}

示例#2

文件： nsRDFContentSink.cpp 项目： dadaa/gecko-dev

NS_IMETHODIMP
RDFContentSinkImpl::QueryInterface(REFNSIID iid, void** result)
{
    NS_PRECONDITION(result, "null ptr");
    if (! result)
        return NS_ERROR_NULL_POINTER;

    NS_DEFINE_IID(kIContentSinkIID,    NS_ICONTENT_SINK_IID);
    NS_DEFINE_IID(kIExpatSinkIID,      NS_IEXPATSINK_IID);
    NS_DEFINE_IID(kISupportsIID,       NS_ISUPPORTS_IID);
    NS_DEFINE_IID(kIXMLContentSinkIID, NS_IXMLCONTENT_SINK_IID);
    NS_DEFINE_IID(kIRDFContentSinkIID, NS_IRDFCONTENTSINK_IID);

    *result = nullptr;
    if (iid.Equals(kIRDFContentSinkIID) ||
        iid.Equals(kIXMLContentSinkIID) ||
        iid.Equals(kIContentSinkIID) ||
        iid.Equals(kISupportsIID)) {
        *result = static_cast<nsIXMLContentSink*>(this);
        AddRef();
        return NS_OK;
    }
    else if (iid.Equals(kIExpatSinkIID)) {
      *result = static_cast<nsIExpatSink*>(this);
       AddRef();
       return NS_OK;
    }
    return NS_NOINTERFACE;
}

示例#3

文件： nsUnicodeToX11Johab.cpp 项目： rn10950/RetroZilla

nsresult nsUnicodeToX11Johab::QueryInterface(REFNSIID aIID,
                                          void** aInstancePtr)
{
  if (NULL == aInstancePtr) {
    return NS_ERROR_NULL_POINTER;
  }

  *aInstancePtr = NULL;

  static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);

  if (aIID.Equals(NS_GET_IID(nsIUnicodeEncoder))) {
    *aInstancePtr = (void*) ((nsIUnicodeEncoder*)this);
    NS_ADDREF_THIS();
    return NS_OK;
  }
  if (aIID.Equals(NS_GET_IID(nsICharRepresentable))) {
    *aInstancePtr = (void*) ((nsICharRepresentable*)this);
    NS_ADDREF_THIS();
    return NS_OK;
  }
  if (aIID.Equals(kISupportsIID)) {
    *aInstancePtr = (void*) ((nsISupports*)((nsIUnicodeEncoder*)this));
    NS_ADDREF_THIS();
    return NS_OK;
  }

  return NS_NOINTERFACE;
}

示例#4

文件： nsInstallVersion.cpp 项目： rn10950/RetroZilla

NS_IMETHODIMP
nsInstallVersion::QueryInterface(REFNSIID aIID,void** aInstancePtr)
{
    if (aInstancePtr == NULL)
    {
        return NS_ERROR_NULL_POINTER;
    }

    // Always NULL result, in case of failure
    *aInstancePtr = NULL;

    if ( aIID.Equals(kIScriptObjectOwnerIID))
    {
        *aInstancePtr = (void*) ((nsIScriptObjectOwner*)this);
        AddRef();
        return NS_OK;
    }
    else if ( aIID.Equals(kIInstallVersion_IID) )
    {
        *aInstancePtr = (void*) ((nsIDOMInstallVersion*)this);
        AddRef();
        return NS_OK;
    }
    else if ( aIID.Equals(kISupportsIID) )
    {
        *aInstancePtr = (void*)(nsISupports*)(nsIScriptObjectOwner*)this;
        AddRef();
        return NS_OK;
    }

     return NS_NOINTERFACE;
}

示例#5

文件： wspproxy.cpp 项目： rn10950/RetroZilla

NS_IMETHODIMP
WSPProxy::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
  if((mIID && aIID.Equals(*mIID)) || aIID.Equals(NS_GET_IID(nsISupports))) {
    *aInstancePtr = NS_STATIC_CAST(nsXPTCStubBase*, this);
    NS_ADDREF_THIS();
    return NS_OK;
  }

示例#6

文件： XPCWrappedJS.cpp 项目： cstipkovic/gecko-dev

NS_IMETHODIMP
nsXPCWrappedJS::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
    if (nullptr == aInstancePtr) {
        NS_PRECONDITION(false, "null pointer");
        return NS_ERROR_NULL_POINTER;
    }

    *aInstancePtr = nullptr;

    if ( aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant)) ) {
        *aInstancePtr = NS_CYCLE_COLLECTION_PARTICIPANT(nsXPCWrappedJS);
        return NS_OK;
    }

    if (aIID.Equals(NS_GET_IID(nsCycleCollectionISupports))) {
        *aInstancePtr =
            NS_CYCLE_COLLECTION_CLASSNAME(nsXPCWrappedJS)::Upcast(this);
        return NS_OK;
    }

    if (!IsValid())
        return NS_ERROR_UNEXPECTED;

    if (aIID.Equals(NS_GET_IID(nsIXPConnectWrappedJSUnmarkGray))) {
        *aInstancePtr = nullptr;

        // No need to null check mJSObj because IsValid() call above did
        // that already.
        JS::ExposeObjectToActiveJS(mJSObj);

        // Just return some error value since one isn't supposed to use
        // nsIXPConnectWrappedJSUnmarkGray objects for anything.
        return NS_ERROR_FAILURE;
    }

    // Always check for this first so that our 'outer' can get this interface
    // from us without recurring into a call to the outer's QI!
    if (aIID.Equals(NS_GET_IID(nsIXPConnectWrappedJS))) {
        NS_ADDREF(this);
        *aInstancePtr = (void*) static_cast<nsIXPConnectWrappedJS*>(this);
        return NS_OK;
    }

    nsISupports* outer = GetAggregatedNativeObject();
    if (outer)
        return outer->QueryInterface(aIID, aInstancePtr);

    // else...

    return mClass->DelegatedQueryInterface(this, aIID, aInstancePtr);
}

示例#7

文件： nsXTFWeakTearoff.cpp 项目： Bmetz/mozilla-central

NS_IMETHODIMP
nsXTFWeakTearoff::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
  NS_PRECONDITION(aInstancePtr, "null out param");

  if (aIID.Equals(mIID) || aIID.Equals(NS_GET_IID(nsISupports))) {
    *aInstancePtr = mXPTCStub;
    NS_ADDREF_THIS();
    return NS_OK;
  }
  // we can't map QI onto the obj, because the xpcom wrapper otherwise
  // QI-accumulates all interfaces defined on mObj
  //  else return mObj->QueryInterface(aIID, aInstancePtr); 
  *aInstancePtr = nsnull;
  return NS_ERROR_NO_INTERFACE;
}

示例#8

NS_IMETHODIMP
nsDBFolderInfo::QueryInterface(REFNSIID iid, void** result)
{
  if (! result)
    return NS_ERROR_NULL_POINTER;

  *result = nsnull;
  if(iid.Equals(NS_GET_IID(nsIDBFolderInfo)) ||
    iid.Equals(NS_GET_IID(nsISupports)))
  {
    *result = static_cast<nsIDBFolderInfo*>(this);
    AddRef();
    return NS_OK;
  }
  return NS_NOINTERFACE;
}

示例#9

文件： EditAggregateTxn.cpp 项目： rn10950/RetroZilla

//NS_IMPL_QUERY_INTERFACE_INHERITED1(Class, Super, AdditionalInterface)
NS_IMETHODIMP EditAggregateTxn::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
  if (!aInstancePtr) return NS_ERROR_NULL_POINTER;
 
  if (aIID.Equals(EditAggregateTxn::GetCID())) {
    *aInstancePtr = NS_STATIC_CAST(EditAggregateTxn*, this);
    NS_ADDREF_THIS();
    return NS_OK;
  }

示例#10

文件： nsAsyncStreamListener.cpp 项目： rn10950/RetroZilla

NS_IMETHODIMP 
nsAsyncStreamListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
  if (!aInstancePtr) return NS_ERROR_NULL_POINTER;
  if (aIID.Equals(NS_GET_IID(nsIAsyncStreamListener))) {
    *aInstancePtr = NS_STATIC_CAST(nsIAsyncStreamListener*, this);
    NS_ADDREF_THIS();
    return NS_OK;
  }

示例#11

文件： nsXTFElementWrapper.cpp 项目： nikhilm/v8monkey

NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END

NS_IMETHODIMP
nsXTFElementWrapper::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
  NS_PRECONDITION(aInstancePtr, "null out param");

  NS_IMPL_QUERY_CYCLE_COLLECTION(nsXTFElementWrapper)
  if (aIID.Equals(NS_GET_IID(nsIClassInfo)) ||
      aIID.Equals(NS_GET_IID(nsXPCClassInfo))) {
    *aInstancePtr = static_cast<nsIClassInfo*>(this);
    NS_ADDREF_THIS();
    return NS_OK;
  }
  if (aIID.Equals(NS_GET_IID(nsIXPCScriptable))) {
    *aInstancePtr = static_cast<nsIXPCScriptable*>(this);
    NS_ADDREF_THIS();
    return NS_OK;
  }
  if (aIID.Equals(NS_GET_IID(nsIXTFElementWrapper))) {
    *aInstancePtr = static_cast<nsIXTFElementWrapper*>(this);
    NS_ADDREF_THIS();
    return NS_OK;
  }

  nsresult rv = nsXTFElementWrapperBase::QueryInterface(aIID, aInstancePtr);
  if (NS_SUCCEEDED(rv)) {
    return rv;
  }

  // try to get get the interface from our wrapped element:
  nsCOMPtr<nsISupports> inner;
  QueryInterfaceInner(aIID, getter_AddRefs(inner));

  if (inner) {
    rv = NS_NewXTFInterfaceAggregator(aIID, inner,
                                      static_cast<nsIContent*>(this),
                                      aInstancePtr);

    return rv;
  }

  return NS_ERROR_NO_INTERFACE;
}

示例#12

文件： xpctest_noisy.cpp 项目： KWMalik/university-tasks

NS_IMETHODIMP
xpctestNoisy::QueryInterface(REFNSIID iid, void** result)
{
    if (! result)
        return NS_ERROR_NULL_POINTER;

    if (iid.Equals(NS_GET_IID(nsIXPCTestNoisy)) ||
        iid.Equals(NS_GET_IID(nsISupports))) {
        *result = static_cast<nsIXPCTestNoisy*>(this);
        printf("Noisy %d - QueryInterface called and succeeding\n", mID);
        NS_ADDREF(this);
        return NS_OK;
    }
    else {
        *result = nsnull;
        printf("Noisy %d - QueryInterface for interface I don't do\n", mID);
        return NS_NOINTERFACE;
    }
}

示例#13

文件： nsXTFElementWrapper.cpp 项目： nikhilm/v8monkey

//----------------------------------------------------------------------
// implementation helpers:
PRBool
nsXTFElementWrapper::QueryInterfaceInner(REFNSIID aIID, void** result)
{
  // We must ensure that the inner element has a distinct xpconnect
  // identity, so we mustn't aggregate nsIXPConnectWrappedJS:
  if (aIID.Equals(NS_GET_IID(nsIXPConnectWrappedJS))) return PR_FALSE;

  GetXTFElement()->QueryInterface(aIID, result);
  return (*result!=nsnull);
}

示例#14

文件： nsUnknownContentTypeHandler.cpp 项目： EdgarChen/mozilla-cvs-history

/* QueryInterface implementation for this class. */
NS_IMETHODIMP className::QueryInterface( REFNSIID anIID, void **anInstancePtr ) { 
	nsresult rv = NS_OK; 
///* ATENTIE */ printf("QueryInterface!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n\n\n");

	/* Check for place to return result. */
	if( !anInstancePtr ) rv = NS_ERROR_NULL_POINTER;
	else { 
		*anInstancePtr = 0; 
		if ( anIID.Equals( NS_GET_IID(nsIHelperAppLauncherDialog) ) ) { 
			*anInstancePtr = (void*) (nsIHelperAppLauncherDialog*)this; 
			NS_ADDREF_THIS();
			}
		else if ( anIID.Equals( NS_GET_IID(nsISupports) ) ) { 
			*anInstancePtr = (void*) ( (nsISupports*) (interfaceName*)this ); 
			NS_ADDREF_THIS();
			}
		else rv = NS_NOINTERFACE;
		} 
	return rv; 
	}

示例#15

文件： nsScrollbarButtonFrame.cpp 项目： rn10950/RetroZilla

NS_IMETHODIMP 
nsScrollbarButtonFrame::QueryInterface(REFNSIID aIID, void** aInstancePtr)      
{           
  if (aIID.Equals(NS_GET_IID(nsITimerCallback))) {                                         
    *aInstancePtr = (void*)(nsITimerCallback*) this;                                        
    NS_ADDREF_THIS();                                                    
    return NS_OK;                                                        
  }   

  return nsButtonBoxFrame::QueryInterface(aIID, aInstancePtr);                                     
}

示例#16

文件： nsProxyEventObject.cpp 项目： Akin-Net/mozilla-central

NS_IMETHODIMP
nsProxyEventObject::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
    if( aIID.Equals(GetClass()->GetProxiedIID()) )
    {
        *aInstancePtr = static_cast<nsISupports*>(mXPTCStub);
        NS_ADDREF_THIS();
        return NS_OK;
    }
        
    return mProxyObject->QueryInterface(aIID, aInstancePtr);
}

示例#17

文件： xpcAccessibleHyperText.cpp 项目： ConradIrwin/gecko-dev

nsresult
xpcAccessibleHyperText::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
  *aInstancePtr = nullptr;

  HyperTextAccessible* text = static_cast<HyperTextAccessible*>(this);
  if (!text->IsTextRole())
    return NS_ERROR_NO_INTERFACE;

  if (aIID.Equals(NS_GET_IID(nsIAccessibleText)))
    *aInstancePtr = static_cast<nsIAccessibleText*>(text);
  else if (aIID.Equals(NS_GET_IID(nsIAccessibleEditableText)))
    *aInstancePtr = static_cast<nsIAccessibleEditableText*>(text);
  else if (aIID.Equals(NS_GET_IID(nsIAccessibleHyperText)))
    *aInstancePtr = static_cast<nsIAccessibleHyperText*>(text);
  else
    return NS_ERROR_NO_INTERFACE;

  NS_ADDREF(text);
  return NS_OK;
}

示例#18

文件： nsSVGClipPathFrame.cpp 项目： rn10950/RetroZilla

NS_IMETHODIMP
nsSVGClipPathFrame::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
  if (nsnull == aInstancePtr) {
    return NS_ERROR_NULL_POINTER;
  }
  if (aIID.Equals(nsSVGClipPathFrame::GetCID())) {
    *aInstancePtr = (void*)(nsSVGClipPathFrame*)this;
    NS_ADDREF_THIS();
    return NS_OK;
  }
  return (nsSVGDefsFrame::QueryInterface(aIID, aInstancePtr));
}

示例#19

NS_IMETHODIMP
nsXPCWrappedJS::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
    if (nullptr == aInstancePtr) {
        NS_PRECONDITION(0, "null pointer");
        return NS_ERROR_NULL_POINTER;
    }

    if ( aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant)) ) {
        *aInstancePtr = NS_CYCLE_COLLECTION_PARTICIPANT(nsXPCWrappedJS);
        return NS_OK;
    }

    if (aIID.Equals(NS_GET_IID(nsCycleCollectionISupports))) {
        *aInstancePtr =
            NS_CYCLE_COLLECTION_CLASSNAME(nsXPCWrappedJS)::Upcast(this);
        return NS_OK;
    }

    if (!IsValid())
        return NS_ERROR_UNEXPECTED;

    // Always check for this first so that our 'outer' can get this interface
    // from us without recurring into a call to the outer's QI!
    if (aIID.Equals(NS_GET_IID(nsIXPConnectWrappedJS))) {
        NS_ADDREF(this);
        *aInstancePtr = (void*) static_cast<nsIXPConnectWrappedJS*>(this);
        return NS_OK;
    }

    nsISupports* outer = GetAggregatedNativeObject();
    if (outer)
        return outer->QueryInterface(aIID, aInstancePtr);

    // else...

    return mClass->DelegatedQueryInterface(this, aIID, aInstancePtr);
}

示例#20

文件： TestXPTCInvokeInIDE.cpp 项目： fortunto2/celtx

NS_IMETHODIMP
InvokeTestTarget::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
  if (NULL == aInstancePtr) {
    return NS_ERROR_NULL_POINTER;
  }

  *aInstancePtr = NULL;


  if (aIID.Equals(kTheCID)) {
    *aInstancePtr = (void*) static_cast<InvokeTestTargetInterface*>(this);
    NS_ADDREF_THIS();
    return NS_OK;
  }

  if (aIID.Equals(NS_GET_IID(nsISupports))) {
    *aInstancePtr = (void*) static_cast<nsISupports*>(static_cast<InvokeTestTargetInterface*>(this));
    NS_ADDREF_THIS();
    return NS_OK;
  }
  return NS_NOINTERFACE;
}

示例#21

文件： nsPopupBoxObject.cpp 项目： rn10950/RetroZilla

NS_IMETHODIMP 
nsPopupBoxObject::QueryInterface(REFNSIID iid, void** aResult)
{
  if (!aResult)
    return NS_ERROR_NULL_POINTER;
  
  if (iid.Equals(NS_GET_IID(nsIPopupBoxObject))) {
    *aResult = (nsIPopupBoxObject*)this;
    NS_ADDREF(this);
    return NS_OK;
  }

  return nsBoxObject::QueryInterface(iid, aResult);
}

示例#22

文件： nsRDFContentSink.cpp 项目： lofter2011/Icefox

NS_IMETHODIMP
RDFContentSinkImpl::QueryInterface(REFNSIID iid, void** result)
{
    NS_PRECONDITION(result, "null ptr");
    if (! result)
        return NS_ERROR_NULL_POINTER;

    *result = nsnull;
    if (iid.Equals(kIRDFContentSinkIID) ||
        iid.Equals(kIXMLContentSinkIID) ||
        iid.Equals(kIContentSinkIID) ||
        iid.Equals(kISupportsIID)) {
        *result = static_cast<nsIXMLContentSink*>(this);
        AddRef();
        return NS_OK;
    }
    else if (iid.Equals(kIExpatSinkIID)) {
      *result = static_cast<nsIExpatSink*>(this);
       AddRef();
       return NS_OK;
    }
    return NS_NOINTERFACE;
}

示例#23

文件： nsDeviceContextSpecB.cpp 项目： rn10950/RetroZilla

NS_IMETHODIMP nsDeviceContextSpecBeOS :: QueryInterface(REFNSIID aIID, void** aInstancePtr) 
{ 
  if (nsnull == aInstancePtr) 
    return NS_ERROR_NULL_POINTER; 

  if (aIID.Equals(kIDeviceContextSpecIID)) 
  { 
    nsIDeviceContextSpec* tmp = this; 
    *aInstancePtr = (void*) tmp; 
    NS_ADDREF_THIS(); 
    return NS_OK; 
  } 
 
#ifdef USE_POSTSCRIPT
  if (aIID.Equals(kIDeviceContextSpecPSIID)) 
  { 
    nsIDeviceContextSpecPS* tmp = this; 
    *aInstancePtr = (void*) tmp; 
    NS_ADDREF_THIS(); 
    return NS_OK; 
  }
#endif /* USE_POSTSCRIPT */

  static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);

  if (aIID.Equals(kISupportsIID)) 
  { 
    nsIDeviceContextSpec* tmp = this; 
    nsISupports* tmp2 = tmp; 
    *aInstancePtr = (void*) tmp2; 
    NS_ADDREF_THIS(); 
    return NS_OK; 
  } 
 
  return NS_NOINTERFACE; 
} 

示例#24

文件： nsXULListboxAccessible.cpp 项目： jason188/mozilla-central

nsresult
nsXULListboxAccessible::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
  nsresult rv = XULSelectControlAccessible::QueryInterface(aIID, aInstancePtr);
  if (*aInstancePtr)
    return rv;

  if (aIID.Equals(NS_GET_IID(nsIAccessibleTable)) && IsMulticolumn()) {
    *aInstancePtr = static_cast<nsIAccessibleTable*>(this);
    NS_ADDREF_THIS();
    return NS_OK;
  }

  return NS_ERROR_NO_INTERFACE;
}

示例#25

文件： nsXMLElement.cpp 项目： rn10950/RetroZilla

// QueryInterface implementation for nsXMLElement
NS_IMETHODIMP 
nsXMLElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
  NS_ENSURE_ARG_POINTER(aInstancePtr);
  *aInstancePtr = nsnull;

  nsresult rv = nsGenericElement::QueryInterface(aIID, aInstancePtr);

  if (NS_SUCCEEDED(rv))
    return rv;

  nsISupports *inst = nsnull;

  if (aIID.Equals(NS_GET_IID(nsIDOMNode))) {
    inst = NS_STATIC_CAST(nsIDOMNode *, this);
  } else if (aIID.Equals(NS_GET_IID(nsIDOMElement))) {

示例#26

文件： nsNewsDatabase.cpp 项目： mozilla/releases-comm-central

NS_IMETHODIMP nsNewsDatabase::QueryInterface(REFNSIID aIID,
                                             void **aInstancePtr) {
  if (!aInstancePtr) return NS_ERROR_NULL_POINTER;
  *aInstancePtr = nullptr;

  if (aIID.Equals(NS_GET_IID(nsINewsDatabase))) {
    *aInstancePtr = static_cast<nsINewsDatabase *>(this);
  }

  if (*aInstancePtr) {
    AddRef();
    return NS_OK;
  }

  return nsMsgDatabase::QueryInterface(aIID, aInstancePtr);
}

示例#27

文件： nsISupportsImpl.cpp 项目： AshishNamdev/mozilla-central

nsresult NS_FASTCALL
NS_TableDrivenQI(void* aThis, const QITableEntry* entries,
                 REFNSIID aIID, void **aInstancePtr)
{
  while (entries->iid) {
    if (aIID.Equals(*entries->iid)) {
      nsISupports* r =
        reinterpret_cast<nsISupports*>
                        (reinterpret_cast<char*>(aThis) + entries->offset);
      NS_ADDREF(r);
      *aInstancePtr = r;
      return NS_OK;
    }

    ++entries;
  }

  *aInstancePtr = nullptr;
  return NS_ERROR_NO_INTERFACE;
}

示例#28

文件： nsImapUndoTxn.cpp 项目： binoc-software/mozilla-cvs

NS_IMETHODIMP
nsImapMoveCopyMsgTxn::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
    if (!aInstancePtr) return NS_ERROR_NULL_POINTER;

    *aInstancePtr = nsnull;

    if (aIID.Equals(NS_GET_IID(nsImapMoveCopyMsgTxn))) 
    {
        *aInstancePtr = static_cast<nsImapMoveCopyMsgTxn*>(this);
    }

    if (*aInstancePtr)
    {
        NS_ADDREF_THIS();
        return NS_OK;
    }

    return nsMsgTxn::QueryInterface(aIID, aInstancePtr);
}

示例#29

文件： nsCLiveconnectFactory.cpp 项目： bsingr/distil

NS_METHOD
nsCLiveconnectFactory::CreateInstance(nsISupports *aOuter, REFNSIID aIID, void **aResult)
{
	if (!aResult)
		return NS_ERROR_INVALID_POINTER;

	*aResult  = NULL;

	if (aOuter && !aIID.Equals(kISupportsIID))
		return NS_ERROR_INVALID_ARG;

	nsCLiveconnect* liveconnect = new nsCLiveconnect(aOuter);
	if (liveconnect == NULL)
		return NS_ERROR_OUT_OF_MEMORY;
		
	nsresult result = liveconnect->AggregatedQueryInterface(aIID, aResult);
	if (NS_FAILED(result))
		delete liveconnect;

	return result;
}

示例#30

NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_END

NS_IMETHODIMP
nsXPCWrappedJS::AggregatedQueryInterface(REFNSIID aIID, void** aInstancePtr)
{
    MOZ_ASSERT(IsAggregatedToNative(), "bad AggregatedQueryInterface call");

    if (!IsValid())
        return NS_ERROR_UNEXPECTED;

    // Put this here rather that in DelegatedQueryInterface because it needs
    // to be in QueryInterface before the possible delegation to 'outer', but
    // we don't want to do this check twice in one call in the normal case:
    // once in QueryInterface and once in DelegatedQueryInterface.
    if (aIID.Equals(NS_GET_IID(nsIXPConnectWrappedJS))) {
        NS_ADDREF(this);
        *aInstancePtr = (void*) static_cast<nsIXPConnectWrappedJS*>(this);
        return NS_OK;
    }

    return mClass->DelegatedQueryInterface(this, aIID, aInstancePtr);
}