reactos/dll/win32/objsel/factory.c

164 lines
4.2 KiB
C

/*
* ClassFactory implementation for OBJSEL.dll
*
* Copyright (C) 2002 John K. Hohm
* Copyright (C) 2002 Robert Shearman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "objsel_private.h"
static inline ClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
{
return CONTAINING_RECORD(iface, ClassFactoryImpl, IClassFactory_iface);
}
/**********************************************************************
* OBJSEL_IClassFactory_QueryInterface (also IUnknown)
*/
static HRESULT WINAPI OBJSEL_IClassFactory_QueryInterface(
LPCLASSFACTORY iface,
REFIID riid,
LPVOID *ppvObj)
{
TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
if (ppvObj == NULL) return E_POINTER;
if (IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IClassFactory))
{
*ppvObj = iface;
IClassFactory_AddRef(iface);
return S_OK;
}
else if (IsEqualGUID(riid, &IID_IDsObjectPicker))
{
return IClassFactory_CreateInstance(iface, NULL, riid, ppvObj);
}
FIXME("- no interface IID: %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
/**********************************************************************
* OBJSEL_IClassFactory_AddRef (also IUnknown)
*/
static ULONG WINAPI OBJSEL_IClassFactory_AddRef(LPCLASSFACTORY iface)
{
ClassFactoryImpl *This = impl_from_IClassFactory(iface);
ULONG ref;
TRACE("\n");
if (This == NULL) return E_POINTER;
ref = InterlockedIncrement(&This->ref);
if (ref == 1)
{
InterlockedIncrement(&dll_refs);
}
return ref;
}
/**********************************************************************
* OBJSEL_IClassFactory_Release (also IUnknown)
*/
static ULONG WINAPI OBJSEL_IClassFactory_Release(LPCLASSFACTORY iface)
{
ClassFactoryImpl *This = impl_from_IClassFactory(iface);
ULONG ref;
TRACE("\n");
if (This == NULL) return E_POINTER;
ref = InterlockedDecrement(&This->ref);
if (ref == 0)
{
InterlockedDecrement(&dll_refs);
}
return ref;
}
/**********************************************************************
* OBJSEL_IClassFactory_CreateInstance
*/
static HRESULT WINAPI OBJSEL_IClassFactory_CreateInstance(
LPCLASSFACTORY iface,
LPUNKNOWN pUnkOuter,
REFIID riid,
LPVOID *ppvObj)
{
TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
if (ppvObj == NULL) return E_POINTER;
/* Don't support aggregation (Windows doesn't) */
if (pUnkOuter != NULL) return CLASS_E_NOAGGREGATION;
if (IsEqualGUID(&IID_IDsObjectPicker, riid))
{
return OBJSEL_IDsObjectPicker_Create(ppvObj);
}
return CLASS_E_CLASSNOTAVAILABLE;
}
/**********************************************************************
* OBJSEL_IClassFactory_LockServer
*/
static HRESULT WINAPI OBJSEL_IClassFactory_LockServer(
LPCLASSFACTORY iface,
BOOL fLock)
{
TRACE("\n");
if (fLock)
IClassFactory_AddRef(iface);
else
IClassFactory_Release(iface);
return S_OK;
}
/**********************************************************************
* IClassFactory_Vtbl
*/
static IClassFactoryVtbl IClassFactory_Vtbl =
{
OBJSEL_IClassFactory_QueryInterface,
OBJSEL_IClassFactory_AddRef,
OBJSEL_IClassFactory_Release,
OBJSEL_IClassFactory_CreateInstance,
OBJSEL_IClassFactory_LockServer
};
/**********************************************************************
* static ClassFactory instance
*/
ClassFactoryImpl OBJSEL_ClassFactory = { { &IClassFactory_Vtbl }, 0 };