зеркало из https://github.com/mozilla/gecko-dev.git
96 строки
4.7 KiB
C++
96 строки
4.7 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.
|
|
*/
|
|
|
|
#ifndef nsIGenericFactory_h___
|
|
#define nsIGenericFactory_h___
|
|
|
|
#include "nsIFactory.h"
|
|
|
|
// {3bc97f01-ccdf-11d2-bab8-b548654461fc}
|
|
#define NS_GENERICFACTORY_CID \
|
|
{ 0x3bc97f01, 0xccdf, 0x11d2, { 0xba, 0xb8, 0xb5, 0x48, 0x65, 0x44, 0x61, 0xfc } }
|
|
|
|
// {3bc97f00-ccdf-11d2-bab8-b548654461fc}
|
|
#define NS_IGENERICFACTORY_IID \
|
|
{ 0x3bc97f00, 0xccdf, 0x11d2, { 0xba, 0xb8, 0xb5, 0x48, 0x65, 0x44, 0x61, 0xfc } }
|
|
|
|
#define NS_GENERICFACTORY_PROGID "component:/netscape/generic-factory"
|
|
#define NS_GENERICFACTORY_CLASSNAME "Generic Factory"
|
|
/**
|
|
* Provides a Generic nsIFactory implementation that can be used by
|
|
* DLLs with very simple factory needs.
|
|
*/
|
|
class nsIGenericFactory : public nsIFactory {
|
|
public:
|
|
static const nsIID& GetIID() { static nsIID iid = NS_IGENERICFACTORY_IID; return iid; }
|
|
|
|
typedef NS_CALLBACK(ConstructorProcPtr) (nsISupports *aOuter, REFNSIID aIID, void **aResult);
|
|
typedef NS_CALLBACK(DestructorProcPtr) (void);
|
|
|
|
/**
|
|
* Establishes the generic factory's constructor function, which will be called
|
|
* by CreateInstance.
|
|
*/
|
|
NS_IMETHOD SetConstructor(ConstructorProcPtr constructor) = 0;
|
|
|
|
/**
|
|
* Establishes the generic factory's destructor function, which will be called
|
|
* whe the generic factory is deleted. This is used to notify the DLL that
|
|
* an instance of one of its generic factories is going away.
|
|
*/
|
|
NS_IMETHOD SetDestructor(DestructorProcPtr destructor) = 0;
|
|
};
|
|
|
|
extern NS_COM nsresult
|
|
NS_NewGenericFactory(nsIGenericFactory* *result,
|
|
nsIGenericFactory::ConstructorProcPtr constructor,
|
|
nsIGenericFactory::DestructorProcPtr destructor = NULL);
|
|
|
|
#define NS_GENERIC_FACTORY_CONSTRUCTOR(_InstanceClass) \
|
|
static NS_IMETHODIMP \
|
|
_InstanceClass##Constructor(nsISupports *aOuter, REFNSIID aIID, void **aResult) \
|
|
{ \
|
|
nsresult rv; \
|
|
\
|
|
_InstanceClass * inst; \
|
|
\
|
|
if (NULL == aResult) { \
|
|
rv = NS_ERROR_NULL_POINTER; \
|
|
goto done; \
|
|
} \
|
|
*aResult = NULL; \
|
|
if (NULL != aOuter) { \
|
|
rv = NS_ERROR_NO_AGGREGATION; \
|
|
goto done; \
|
|
} \
|
|
\
|
|
NS_NEWXPCOM(inst, _InstanceClass); \
|
|
if (NULL == inst) { \
|
|
rv = NS_ERROR_OUT_OF_MEMORY; \
|
|
goto done; \
|
|
} \
|
|
NS_ADDREF(inst); \
|
|
rv = inst->QueryInterface(aIID, aResult); \
|
|
NS_RELEASE(inst); \
|
|
\
|
|
done: \
|
|
return rv; \
|
|
}
|
|
|
|
#endif /* nsIGenericFactory_h___ */
|