/* -*- 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_AGGREGATED(nsObserver);

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)
{
}

NS_IMETHODIMP
nsObserver::AggregatedQueryInterface(const nsIID& aIID, void** aInstancePtr)
{
    if (aInstancePtr == nsnull)
        return NS_ERROR_NULL_POINTER;
    if (aIID.Equals(nsIObserver::GetIID()) ||
        aIID.Equals(nsISupports::GetIID())) {
        *aInstancePtr = this;
        NS_ADDREF_THIS();
        return NS_OK;
    }
    return NS_NOINTERFACE;
}

nsresult nsObserver::Notify(nsISupports** result)
{
    return NS_OK;
    
}

////////////////////////////////////////////////////////////////////////////////