gecko-dev/wallet/module/nsWalletFactory.cpp

164 строки
4.0 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsISupports.h"
#include "nsIFactory.h"
#include "nsIWalletService.h"
//#include "nsIServiceManager.h"
//#include "nsRepository.h"
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
static NS_DEFINE_CID(kWalletServiceCID, NS_WALLETSERVICE_CID);
//#if defined(HAS_C_PLUS_PLUS_CASTS)
//#define NS_STATIC_CAST(__type, __ptr) static_cast<__type>(__ptr)
//#else
//#define NS_STATIC_CAST(__type, __ptr) ((__type)(__ptr))
//#endif
// factory functions
nsresult NS_NewWalletService(nsIWalletService** result);
class WalletFactoryImpl : public nsIFactory
{
public:
WalletFactoryImpl(const nsCID &aClass);
// nsISupports methods
NS_DECL_ISUPPORTS
// nsIFactory methods
NS_IMETHOD CreateInstance(nsISupports *aOuter,
const nsIID &aIID,
void **aResult);
NS_IMETHOD LockFactory(PRBool aLock);
protected:
virtual ~WalletFactoryImpl();
private:
nsCID mClassID;
};
////////////////////////////////////////////////////////////////////////
WalletFactoryImpl::WalletFactoryImpl(const nsCID &aClass)
{
NS_INIT_REFCNT();
mClassID = aClass;
}
WalletFactoryImpl::~WalletFactoryImpl()
{
NS_ASSERTION(mRefCnt == 0, "non-zero refcnt at destruction");
}
NS_IMETHODIMP
WalletFactoryImpl::QueryInterface(const nsIID &aIID,
void **aResult)
{
if (! aResult)
return NS_ERROR_NULL_POINTER;
// Always NULL result, in case of failure
*aResult = nsnull;
if (aIID.Equals(kISupportsIID)) {
*aResult = NS_STATIC_CAST(nsISupports*, this);
AddRef();
return NS_OK;
} else if (aIID.Equals(kIFactoryIID)) {
*aResult = NS_STATIC_CAST(nsIFactory*, this);
AddRef();
return NS_OK;
}
return NS_NOINTERFACE;
}
NS_IMPL_ADDREF(WalletFactoryImpl);
NS_IMPL_RELEASE(WalletFactoryImpl);
NS_IMETHODIMP
WalletFactoryImpl::CreateInstance(nsISupports *aOuter,
const nsIID &aIID,
void **aResult)
{
if (! aResult)
return NS_ERROR_NULL_POINTER;
if (aOuter)
return NS_ERROR_NO_AGGREGATION;
*aResult = nsnull;
nsresult rv;
PRBool wasRefCounted = PR_TRUE;
nsISupports *inst = nsnull;
if (mClassID.Equals(kWalletServiceCID)) {
if (NS_FAILED(rv = NS_NewWalletService((nsIWalletService**) &inst)))
return rv;
}
else {
return NS_ERROR_NO_INTERFACE;
}
if (! inst)
return NS_ERROR_OUT_OF_MEMORY;
if (NS_FAILED(rv = inst->QueryInterface(aIID, aResult)))
// We didn't get the right interface, so clean up
delete inst;
if (wasRefCounted)
NS_IF_RELEASE(inst);
return rv;
}
nsresult WalletFactoryImpl::LockFactory(PRBool aLock)
{
// Not implemented in simplest case.
return NS_OK;
}
////////////////////////////////////////////////////////////////////////
// return the proper factory to the caller
extern "C" PR_IMPLEMENT(nsresult)
NSGetFactory(nsISupports* serviceMgr,
const nsCID &aClass,
const char *aClassName,
const char *aProgID,
nsIFactory **aFactory)
{
if (! aFactory)
return NS_ERROR_NULL_POINTER;
WalletFactoryImpl* factory = new WalletFactoryImpl(aClass);
if (factory == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(factory);
*aFactory = factory;
return NS_OK;
}