pjs/xpcom/ds/nsObserver.cpp

124 строки
2.7 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.
*/
#define NS_IMPL_IDS
#include "pratom.h"
#include "nsIFactory.h"
#include "nsIServiceManager.h"
#include "nsRepository.h"
#include "nsIObserver.h"
#include "nsObserver.h"
#include "nsString.h"
static NS_DEFINE_IID(kIObserverIID, NS_IOBSERVER_IID);
static NS_DEFINE_IID(kObserverCID, NS_OBSERVER_CID);
////////////////////////////////////////////////////////////////////////////////
// nsObserver Implementation
NS_IMPL_ISUPPORTS(nsObserver, kIObserverIID);
NS_BASE nsresult NS_NewObserver(nsIObserver** anObserver)
{
if (anObserver == NULL)
{
return NS_ERROR_NULL_POINTER;
}
nsObserver* it = new nsObserver();
if (it == 0) {
return NS_ERROR_OUT_OF_MEMORY;
}
return it->QueryInterface(kIObserverIID, (void **) anObserver);
}
nsObserver::nsObserver()
{
NS_INIT_REFCNT();
}
nsObserver::~nsObserver(void)
{
}
nsresult nsObserver::Notify(nsISupports** result)
{
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
// nsObserverFactory Implementation
static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
NS_IMPL_ISUPPORTS(nsObserverFactory, kIFactoryIID);
nsObserverFactory::nsObserverFactory(void)
{
NS_INIT_REFCNT();
}
nsObserverFactory::~nsObserverFactory(void)
{
}
nsresult
nsObserverFactory::CreateInstance(nsISupports *aOuter, REFNSIID aIID, void **aResult)
{
if (! aResult)
return NS_ERROR_NULL_POINTER;
if (aOuter)
return NS_ERROR_NO_AGGREGATION;
*aResult = nsnull;
nsresult rv;
nsIObserver* inst = nsnull;
if (NS_FAILED(rv = NS_NewObserver(&inst)))
return rv;
if (!inst)
return NS_ERROR_OUT_OF_MEMORY;
rv = inst->QueryInterface(aIID, aResult);
if (NS_FAILED(rv)) {
*aResult = NULL;
}
return rv;
}
nsresult
nsObserverFactory::LockFactory(PRBool aLock)
{
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////