зеркало из https://github.com/mozilla/gecko-dev.git
111 строки
3.2 KiB
C++
111 строки
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsGenericFactory.h"
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nsGenericFactory::nsGenericFactory(ConstructorProcPtr constructor)
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: mConstructor(constructor), mDestructor(NULL)
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{
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NS_INIT_ISUPPORTS();
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}
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nsGenericFactory::~nsGenericFactory()
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{
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if (mDestructor != NULL)
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(*mDestructor) ();
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}
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NS_METHOD nsGenericFactory::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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if (NULL == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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if (aIID.Equals(nsIGenericFactory::GetIID()) ||
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aIID.Equals(nsIFactory::GetIID()) ||
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aIID.Equals(nsCOMTypeInfo<nsISupports>::GetIID())) {
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*aInstancePtr = (nsIGenericFactory*) this;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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NS_IMPL_ADDREF(nsGenericFactory)
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NS_IMPL_RELEASE(nsGenericFactory)
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NS_IMETHODIMP nsGenericFactory::CreateInstance(nsISupports *aOuter, REFNSIID aIID, void **aResult)
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{
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return mConstructor(aOuter, aIID, aResult);
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}
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NS_IMETHODIMP nsGenericFactory::LockFactory(PRBool aLock)
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{
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return NS_OK;
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}
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NS_IMETHODIMP nsGenericFactory::SetConstructor(ConstructorProcPtr constructor)
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{
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mConstructor = constructor;
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return NS_OK;
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}
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NS_IMETHODIMP nsGenericFactory::SetDestructor(DestructorProcPtr destructor)
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{
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mDestructor = destructor;
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return NS_OK;
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}
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NS_METHOD nsGenericFactory::Create(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr)
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{
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// sorry, aggregation not spoken here.
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nsresult res = NS_ERROR_NO_AGGREGATION;
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if (outer == NULL) {
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nsGenericFactory* factory = new nsGenericFactory;
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if (factory != NULL) {
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res = factory->QueryInterface(aIID, aInstancePtr);
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if (res != NS_OK)
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delete factory;
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} else {
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res = NS_ERROR_OUT_OF_MEMORY;
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}
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}
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return res;
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}
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NS_COM nsresult
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NS_NewGenericFactory(nsIGenericFactory* *result,
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nsIGenericFactory::ConstructorProcPtr constructor,
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nsIGenericFactory::DestructorProcPtr destructor)
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{
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nsresult rv;
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nsIGenericFactory* fact;
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rv = nsGenericFactory::Create(NULL, nsIGenericFactory::GetIID(), (void**)&fact);
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if (NS_FAILED(rv)) return rv;
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rv = fact->SetConstructor(constructor);
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if (NS_FAILED(rv)) goto error;
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rv = fact->SetDestructor(destructor);
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if (NS_FAILED(rv)) goto error;
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*result = fact;
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return rv;
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error:
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NS_RELEASE(fact);
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return rv;
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}
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