dlls/objsel/factory.c

   1 /*
   2  *      ClassFactory implementation for OBJSEL.dll
   3  *
   4  * Copyright (C) 2002 John K. Hohm
   5  * Copyright (C) 2002 Robert Shearman
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "objsel_private.h"
  23
  24 #include "wine/debug.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(objsel);
  27
  28
  29 /**********************************************************************
  30  * OBJSEL_IClassFactory_QueryInterface (also IUnknown)
  31  */
  32 static HRESULT WINAPI OBJSEL_IClassFactory_QueryInterface(
  33     LPCLASSFACTORY iface,
  34     REFIID riid,
  35     LPVOID *ppvObj)
  36 {
  37     TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
  38
  39     if (ppvObj == NULL) return E_POINTER;
  40
  41     if (IsEqualGUID(riid, &IID_IUnknown) ||
  42         IsEqualGUID(riid, &IID_IClassFactory))
  43     {
  44         *ppvObj = iface;
  45         IClassFactory_AddRef(iface);
  46         return S_OK;
  47     }
  48     else if (IsEqualGUID(riid, &IID_IDsObjectPicker))
  49     {
  50         return IClassFactory_CreateInstance(iface, NULL, riid, ppvObj);
  51     }
  52
  53     FIXME("- no interface IID: %s\n", debugstr_guid(riid));
  54     return E_NOINTERFACE;
  55 }
  56
  57
  58 /**********************************************************************
  59  * OBJSEL_IClassFactory_AddRef (also IUnknown)
  60  */
  61 static ULONG WINAPI OBJSEL_IClassFactory_AddRef(LPCLASSFACTORY iface)
  62 {
  63     ClassFactoryImpl *This = (ClassFactoryImpl *)iface;
  64     ULONG ref;
  65
  66     TRACE("\n");
  67
  68     if (This == NULL) return E_POINTER;
  69
  70     ref = InterlockedIncrement(&This->ref);
  71
  72     if (ref == 1)
  73     {
  74         InterlockedIncrement(&dll_refs);
  75     }
  76
  77     return ref;
  78 }
  79
  80
  81 /**********************************************************************
  82  * OBJSEL_IClassFactory_Release (also IUnknown)
  83  */
  84 static ULONG WINAPI OBJSEL_IClassFactory_Release(LPCLASSFACTORY iface)
  85 {
  86     ClassFactoryImpl *This = (ClassFactoryImpl *)iface;
  87     ULONG ref;
  88
  89     TRACE("\n");
  90
  91     if (This == NULL) return E_POINTER;
  92
  93     ref = InterlockedDecrement(&This->ref);
  94
  95     if (ref == 0)
  96     {
  97         InterlockedDecrement(&dll_refs);
  98     }
  99
 100     return ref;
 101 }
 102
 103
 104 /**********************************************************************
 105  * OBJSEL_IClassFactory_CreateInstance
 106  */
 107 static HRESULT WINAPI OBJSEL_IClassFactory_CreateInstance(
 108     LPCLASSFACTORY iface,
 109     LPUNKNOWN pUnkOuter,
 110     REFIID riid,
 111     LPVOID *ppvObj)
 112 {
 113     TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
 114
 115     if (ppvObj == NULL) return E_POINTER;
 116
 117     /* Don't support aggregation (Windows doesn't) */
 118     if (pUnkOuter != NULL) return CLASS_E_NOAGGREGATION;
 119
 120     if (IsEqualGUID(&IID_IDsObjectPicker, riid))
 121     {
 122         return OBJSEL_IDsObjectPicker_Create(ppvObj);
 123     }
 124
 125     return CLASS_E_CLASSNOTAVAILABLE;
 126 }
 127
 128
 129 /**********************************************************************
 130  * OBJSEL_IClassFactory_LockServer
 131  */
 132 static HRESULT WINAPI OBJSEL_IClassFactory_LockServer(
 133     LPCLASSFACTORY iface,
 134     BOOL fLock)
 135 {
 136     TRACE("\n");
 137
 138     if (fLock)
 139         IClassFactory_AddRef(iface);
 140     else
 141         IClassFactory_Release(iface);
 142     return S_OK;
 143 }
 144
 145
 146 /**********************************************************************
 147  * IClassFactory_Vtbl
 148  */
 149 static IClassFactoryVtbl IClassFactory_Vtbl =
 150 {
 151     OBJSEL_IClassFactory_QueryInterface,
 152     OBJSEL_IClassFactory_AddRef,
 153     OBJSEL_IClassFactory_Release,
 154     OBJSEL_IClassFactory_CreateInstance,
 155     OBJSEL_IClassFactory_LockServer
 156 };
 157
 158
 159 /**********************************************************************
 160  * static ClassFactory instance
 161  */
 162
 163 ClassFactoryImpl OBJSEL_ClassFactory = { &IClassFactory_Vtbl, 0 };