git.oblomov.eu Git - wine/blob - dlls/msctf/msctf.c

   1 /*
   2  * MSCTF Server DLL
   3  *
   4  * Copyright 2008 Aric Stewart, CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24 #include <stdio.h>
  25
  26 #define COBJMACROS
  27
  28 #include "wine/debug.h"
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winreg.h"
  32 #include "shlwapi.h"
  33 #include "shlguid.h"
  34 #include "initguid.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(msctf);
  37
  38 LONG MSCTF_refCount = 0;
  39
  40 HINSTANCE MSCTF_hinstance = 0;
  41
  42 typedef HRESULT (*LPFNCONSTRUCTOR)(IUnknown *pUnkOuter, IUnknown **ppvOut);
  43
  44 static const struct {
  45     REFCLSID clsid;
  46     LPFNCONSTRUCTOR ctor;
  47 } ClassesTable[] = {
  48     {NULL, NULL}
  49 };
  50
  51 typedef struct tagClassFactory
  52 {
  53     const IClassFactoryVtbl *vtbl;
  54     LONG   ref;
  55     LPFNCONSTRUCTOR ctor;
  56 } ClassFactory;
  57
  58 static void ClassFactory_Destructor(ClassFactory *This)
  59 {
  60     TRACE("Destroying class factory %p\n", This);
  61     HeapFree(GetProcessHeap(),0,This);
  62     MSCTF_refCount--;
  63 }
  64
  65 static HRESULT WINAPI ClassFactory_QueryInterface(IClassFactory *iface, REFIID riid, LPVOID *ppvOut)
  66 {
  67     *ppvOut = NULL;
  68     if (IsEqualIID(riid, &IID_IClassFactory) || IsEqualIID(riid, &IID_IUnknown)) {
  69         IClassFactory_AddRef(iface);
  70         *ppvOut = iface;
  71         return S_OK;
  72     }
  73
  74     WARN("Unknown interface %s\n", debugstr_guid(riid));
  75     return E_NOINTERFACE;
  76 }
  77
  78 static ULONG WINAPI ClassFactory_AddRef(IClassFactory *iface)
  79 {
  80     ClassFactory *This = (ClassFactory *)iface;
  81     return InterlockedIncrement(&This->ref);
  82 }
  83
  84 static ULONG WINAPI ClassFactory_Release(IClassFactory *iface)
  85 {
  86     ClassFactory *This = (ClassFactory *)iface;
  87     ULONG ret = InterlockedDecrement(&This->ref);
  88
  89     if (ret == 0)
  90         ClassFactory_Destructor(This);
  91     return ret;
  92 }
  93
  94 static HRESULT WINAPI ClassFactory_CreateInstance(IClassFactory *iface, IUnknown *punkOuter, REFIID iid, LPVOID *ppvOut)
  95 {
  96     ClassFactory *This = (ClassFactory *)iface;
  97     HRESULT ret;
  98     IUnknown *obj;
  99
 100     TRACE("(%p, %p, %s, %p)\n", iface, punkOuter, debugstr_guid(iid), ppvOut);
 101     ret = This->ctor(punkOuter, &obj);
 102     if (FAILED(ret))
 103         return ret;
 104     ret = IUnknown_QueryInterface(obj, iid, ppvOut);
 105     IUnknown_Release(obj);
 106     return ret;
 107 }
 108
 109 static HRESULT WINAPI ClassFactory_LockServer(IClassFactory *iface, BOOL fLock)
 110 {
 111     ClassFactory *This = (ClassFactory *)iface;
 112
 113     TRACE("(%p)->(%x)\n", This, fLock);
 114
 115     if(fLock)
 116         InterlockedIncrement(&MSCTF_refCount);
 117     else
 118         InterlockedDecrement(&MSCTF_refCount);
 119
 120     return S_OK;
 121 }
 122
 123 static const IClassFactoryVtbl ClassFactoryVtbl = {
 124     /* IUnknown */
 125     ClassFactory_QueryInterface,
 126     ClassFactory_AddRef,
 127     ClassFactory_Release,
 128
 129     /* IClassFactory*/
 130     ClassFactory_CreateInstance,
 131     ClassFactory_LockServer
 132 };
 133
 134 static HRESULT ClassFactory_Constructor(LPFNCONSTRUCTOR ctor, LPVOID *ppvOut)
 135 {
 136     ClassFactory *This = HeapAlloc(GetProcessHeap(),0,sizeof(ClassFactory));
 137     This->vtbl = &ClassFactoryVtbl;
 138     This->ref = 1;
 139     This->ctor = ctor;
 140     *ppvOut = (LPVOID)This;
 141     TRACE("Created class factory %p\n", This);
 142     MSCTF_refCount++;
 143     return S_OK;
 144 }
 145
 146 /*************************************************************************
 147  * MSCTF DllMain
 148  */
 149 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD fdwReason, LPVOID fImpLoad)
 150 {
 151     TRACE("%p 0x%x %p\n", hinst, fdwReason, fImpLoad);
 152     switch (fdwReason)
 153     {
 154         case DLL_WINE_PREATTACH:
 155             return FALSE;   /* prefer native version */
 156         case DLL_PROCESS_ATTACH:
 157             DisableThreadLibraryCalls(hinst);
 158             MSCTF_hinstance = hinst;
 159             break;
 160     }
 161     return TRUE;
 162 }
 163
 164 /*************************************************************************
 165  *              DllCanUnloadNow (MSCTF.@)
 166  */
 167 HRESULT WINAPI DllCanUnloadNow(void)
 168 {
 169     return MSCTF_refCount ? S_FALSE : S_OK;
 170 }
 171
 172 /***********************************************************************
 173  *              DllGetClassObject (MSCTF.@)
 174  */
 175 HRESULT WINAPI DllGetClassObject(REFCLSID clsid, REFIID iid, LPVOID *ppvOut)
 176 {
 177     int i;
 178
 179     *ppvOut = NULL;
 180     if (!IsEqualIID(iid, &IID_IUnknown) && !IsEqualIID(iid, &IID_IClassFactory))
 181         return E_NOINTERFACE;
 182
 183     for (i = 0; ClassesTable[i].clsid != NULL; i++)
 184         if (IsEqualCLSID(ClassesTable[i].clsid, clsid)) {
 185             return ClassFactory_Constructor(ClassesTable[i].ctor, ppvOut);
 186         }
 187     FIXME("CLSID %s not supported\n", debugstr_guid(clsid));
 188     return CLASS_E_CLASSNOTAVAILABLE;
 189 }