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warren%netscape.com 1999-04-30 23:16:47 +00:00
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 "nsBaseDLL.h"
#include "nscore.h"
#include "nsIProperties.h"
#include "nsProperties.h"
#include "nsIComponentManager.h"
#include "nsIServiceManager.h"
#include "nsCOMPtr.h"
#include "nsIObserverService.h"
#include "nsObserverService.h"
#include "nsIObserver.h"
#include "nsObserver.h"
#include "nsProperties.h"
#include "nsPageMgr.h"
#include "pratom.h"
#include "nsBuffer.h"
static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID);
static NS_DEFINE_CID(kPageManagerCID, NS_PAGEMANAGER_CID);
static NS_DEFINE_CID(kObserverServiceCID, NS_OBSERVERSERVICE_CID);
static NS_DEFINE_CID(kObserverCID, NS_OBSERVER_CID);
static NS_DEFINE_CID(kBufferCID, NS_BUFFER_CID);
////////////////////////////////////////////////////////////////////////////////
class nsBaseFactory : public nsIFactory
{
public:
// nsISupports methods
NS_DECL_ISUPPORTS
nsBaseFactory(const nsCID &aClass);
// nsIFactory methods
NS_IMETHOD CreateInstance(nsISupports *aOuter, const nsIID &aIID, void **aResult);
NS_IMETHOD LockFactory(PRBool aLock);
protected:
virtual ~nsBaseFactory();
static PRInt32 gLockCount;
nsCID mClassID;
};
PRInt32 nsBaseFactory::gLockCount = 0;
nsBaseFactory::nsBaseFactory(const nsCID &aClass)
: mClassID(aClass)
{
NS_INIT_REFCNT();
}
nsBaseFactory::~nsBaseFactory()
{
NS_ASSERTION(mRefCnt == 0, "non-zero refcnt at destruction");
}
nsresult
nsBaseFactory::QueryInterface(const nsIID &aIID, void **aResult)
{
if (aResult == nsnull)
return NS_ERROR_NULL_POINTER;
*aResult = nsnull;
if (aIID.Equals(nsIFactory::GetIID()) ||
aIID.Equals(nsISupports::GetIID())) {
*aResult = (void *)(nsIFactory*)this;
}
if (*aResult == nsnull)
return NS_NOINTERFACE;
NS_ADDREF_THIS();
return NS_OK;
}
NS_IMPL_ADDREF(nsBaseFactory)
NS_IMPL_RELEASE(nsBaseFactory)
nsresult
nsBaseFactory::CreateInstance(nsISupports *aOuter, const nsIID &aIID, void **aResult)
{
nsresult rv = NS_OK;
if (aOuter) {
return NS_ERROR_NO_AGGREGATION;
}
if (aResult == nsnull) {
return NS_ERROR_NULL_POINTER;
}
*aResult = nsnull;
if (mClassID.Equals(kPersistentPropertiesCID)) {
nsPersistentProperties* props = new nsPersistentProperties();
if (props == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
rv = props->QueryInterface(aIID, aResult);
if (NS_FAILED(rv)) {
delete props;
}
return rv;
}
if (mClassID.Equals(kObserverServiceCID)) {
return NS_NewObserverService((nsIObserverService**)aResult);
}
if (mClassID.Equals(kObserverCID)) {
return NS_NewObserver((nsIObserver**)aResult);
}
if (mClassID.Equals(kPageManagerCID)) {
nsPageMgr* pageMgr = new nsPageMgr();
if (pageMgr == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
rv = pageMgr->Init();
if (NS_FAILED(rv)) {
delete pageMgr;
return rv;
}
rv = pageMgr->QueryInterface(aIID, aResult);
if (NS_FAILED(rv)) {
delete pageMgr;
return rv;
}
return NS_OK;
}
if (mClassID.Equals(kBufferCID)) {
nsBuffer* buffer = new nsBuffer();
if (buffer == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
rv = buffer->QueryInterface(aIID, aResult);
if (NS_FAILED(rv)) {
delete buffer;
return rv;
}
return NS_OK;
}
return NS_NOINTERFACE;
}
nsresult nsBaseFactory::LockFactory(PRBool aLock)
{
if (aLock) {
PR_AtomicIncrement(&gLockCount);
} else {
PR_AtomicDecrement(&gLockCount);
}
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
extern "C" NS_EXPORT nsresult
NSRegisterSelf(nsISupports* aServMgr, const char* path)
{
nsresult rv;
NS_WITH_SERVICE1(nsIComponentManager, compMgr,
aServMgr, kComponentManagerCID, &rv);
if (NS_FAILED(rv)) return rv;
rv = compMgr->RegisterComponent(kPersistentPropertiesCID,
"Persistent Properties", NULL,
path, PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) return rv;
rv = compMgr->RegisterComponent(kObserverServiceCID,
"ObserverService",
NS_OBSERVERSERVICE_PROGID,
path, PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) return rv;
rv = compMgr->RegisterComponent(kObserverCID,
"Observer",
NS_OBSERVER_PROGID,
path, PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) return rv;
rv = compMgr->RegisterComponent(kPageManagerCID,
"Page Manager", NULL,
path, PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) return rv;
rv = compMgr->RegisterComponent(kBufferCID,
"Buffer", NULL,
path, PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) return rv;
return rv;
}
extern "C" NS_EXPORT nsresult
NSUnregisterSelf(nsISupports* aServMgr, const char* path)
{
nsresult rv;
NS_WITH_SERVICE1(nsIComponentManager, compMgr,
aServMgr, kComponentManagerCID, &rv);
if (NS_FAILED(rv)) return rv;
rv = compMgr->UnregisterComponent(kPersistentPropertiesCID, path);
if (NS_FAILED(rv)) return rv;
rv = compMgr->UnregisterComponent(kObserverServiceCID, path);
if (NS_FAILED(rv)) return rv;
rv = compMgr->UnregisterComponent(kObserverCID, path);
if (NS_FAILED(rv)) return rv;
rv = compMgr->UnregisterComponent(kPageManagerCID, path);
if (NS_FAILED(rv)) return rv;
rv = compMgr->UnregisterComponent(kBufferCID, path);
if (NS_FAILED(rv)) return rv;
return rv;
}
extern "C" NS_EXPORT nsresult
NSGetFactory(nsISupports* aServMgr,
const nsCID& aClass,
const char *aClassName,
const char *aProgID,
nsIFactory** aFactory)
{
if (!aFactory) {
return NS_ERROR_NULL_POINTER;
}
nsBaseFactory* factory = new nsBaseFactory(aClass);
if (factory == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(factory);
*aFactory = factory;
return NS_OK;
}
extern "C" NS_EXPORT PRBool
NSCanUnload(nsISupports* serviceMgr)
{
return PR_FALSE; // XXX can we unload this?
}
////////////////////////////////////////////////////////////////////////////////