dll/win32/msctf/compartmentmgr.c

   1 /*
   2  *  ITfCompartmentMgr implementation
   3  *
   4  *  Copyright 2009 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 #define WIN32_NO_STATUS
  22 #define _INC_WINDOWS
  23 #define COM_NO_WINDOWS_H
  24
  25 #include <config.h>
  26
  27 //#include <stdarg.h>
  28
  29 #define COBJMACROS
  30
  31 #include <wine/debug.h>
  32 //#include "windef.h"
  33 #include <winbase.h>
  34 //#include "winreg.h"
  35 //#include "winuser.h"
  36 //#include "shlwapi.h"
  37 //#include "winerror.h"
  38 #include <objbase.h>
  39 #include <oleauto.h>
  40 #include <olectl.h>
  41
  42 //#include "wine/unicode.h"
  43 #include <wine/list.h>
  44
  45 #include <msctf.h>
  46 #include "msctf_internal.h"
  47
  48 WINE_DEFAULT_DEBUG_CHANNEL(msctf);
  49
  50 typedef struct tagCompartmentValue {
  51     struct list entry;
  52     GUID guid;
  53     TfClientId owner;
  54     ITfCompartment *compartment;
  55 } CompartmentValue;
  56
  57 typedef struct tagCompartmentMgr {
  58     const ITfCompartmentMgrVtbl *CompartmentMgrVtbl;
  59     LONG refCount;
  60
  61     IUnknown *pUnkOuter;
  62
  63     struct list values;
  64 } CompartmentMgr;
  65
  66 typedef struct tagCompartmentEnumGuid {
  67     const IEnumGUIDVtbl *Vtbl;
  68     LONG refCount;
  69
  70     struct list *values;
  71     struct list *cursor;
  72 } CompartmentEnumGuid;
  73
  74
  75 typedef struct tagCompartmentSink {
  76     struct list         entry;
  77     union {
  78         IUnknown            *pIUnknown;
  79         ITfCompartmentEventSink *pITfCompartmentEventSink;
  80     } interfaces;
  81 } CompartmentSink;
  82
  83 typedef struct tagCompartment {
  84     const ITfCompartmentVtbl *Vtbl;
  85     const ITfSourceVtbl *SourceVtbl;
  86     LONG refCount;
  87
  88     /* Only VT_I4, VT_UNKNOWN and VT_BSTR data types are allowed */
  89     VARIANT variant;
  90     CompartmentValue *valueData;
  91     struct list CompartmentEventSink;
  92 } Compartment;
  93
  94 static HRESULT CompartmentEnumGuid_Constructor(struct list* values, IEnumGUID **ppOut);
  95 static HRESULT Compartment_Constructor(CompartmentValue *value, ITfCompartment **ppOut);
  96
  97 static inline Compartment *impl_from_ITfSourceVtbl(ITfSource *iface)
  98 {
  99     return (Compartment *)((char *)iface - FIELD_OFFSET(Compartment,SourceVtbl));
 100 }
 101
 102 HRESULT CompartmentMgr_Destructor(ITfCompartmentMgr *iface)
 103 {
 104     CompartmentMgr *This = (CompartmentMgr *)iface;
 105     struct list *cursor, *cursor2;
 106
 107     LIST_FOR_EACH_SAFE(cursor, cursor2, &This->values)
 108     {
 109         CompartmentValue* value = LIST_ENTRY(cursor,CompartmentValue,entry);
 110         list_remove(cursor);
 111         ITfCompartment_Release(value->compartment);
 112         HeapFree(GetProcessHeap(),0,value);
 113     }
 114
 115     HeapFree(GetProcessHeap(),0,This);
 116     return S_OK;
 117 }
 118
 119 /*****************************************************
 120  * ITfCompartmentMgr functions
 121  *****************************************************/
 122 static HRESULT WINAPI CompartmentMgr_QueryInterface(ITfCompartmentMgr *iface, REFIID iid, LPVOID *ppvOut)
 123 {
 124     CompartmentMgr *This = (CompartmentMgr *)iface;
 125     if (This->pUnkOuter)
 126         return IUnknown_QueryInterface(This->pUnkOuter, iid, *ppvOut);
 127     else
 128     {
 129         *ppvOut = NULL;
 130
 131         if (IsEqualIID(iid, &IID_IUnknown) || IsEqualIID(iid, &IID_ITfCompartmentMgr))
 132         {
 133             *ppvOut = This;
 134         }
 135
 136         if (*ppvOut)
 137         {
 138             IUnknown_AddRef(iface);
 139             return S_OK;
 140         }
 141
 142         WARN("unsupported interface: %s\n", debugstr_guid(iid));
 143         return E_NOINTERFACE;
 144     }
 145 }
 146
 147 static ULONG WINAPI CompartmentMgr_AddRef(ITfCompartmentMgr *iface)
 148 {
 149     CompartmentMgr *This = (CompartmentMgr *)iface;
 150     if (This->pUnkOuter)
 151         return IUnknown_AddRef(This->pUnkOuter);
 152     else
 153         return InterlockedIncrement(&This->refCount);
 154 }
 155
 156 static ULONG WINAPI CompartmentMgr_Release(ITfCompartmentMgr *iface)
 157 {
 158     CompartmentMgr *This = (CompartmentMgr *)iface;
 159     if (This->pUnkOuter)
 160         return IUnknown_Release(This->pUnkOuter);
 161     else
 162     {
 163         ULONG ret;
 164
 165         ret = InterlockedDecrement(&This->refCount);
 166         if (ret == 0)
 167             CompartmentMgr_Destructor(iface);
 168         return ret;
 169     }
 170 }
 171
 172 static HRESULT WINAPI CompartmentMgr_GetCompartment(ITfCompartmentMgr *iface,
 173         REFGUID rguid, ITfCompartment **ppcomp)
 174 {
 175     CompartmentMgr *This = (CompartmentMgr *)iface;
 176     CompartmentValue* value;
 177     struct list *cursor;
 178     HRESULT hr;
 179
 180     TRACE("(%p) %s  %p\n",This,debugstr_guid(rguid),ppcomp);
 181
 182     LIST_FOR_EACH(cursor, &This->values)
 183     {
 184         value = LIST_ENTRY(cursor,CompartmentValue,entry);
 185         if (IsEqualGUID(rguid,&value->guid))
 186         {
 187             ITfCompartment_AddRef(value->compartment);
 188             *ppcomp = value->compartment;
 189             return S_OK;
 190         }
 191     }
 192
 193     value = HeapAlloc(GetProcessHeap(),0,sizeof(CompartmentValue));
 194     value->guid = *rguid;
 195     value->owner = 0;
 196     hr = Compartment_Constructor(value,&value->compartment);
 197     if (SUCCEEDED(hr))
 198     {
 199         list_add_head(&This->values,&value->entry);
 200         ITfCompartment_AddRef(value->compartment);
 201         *ppcomp = value->compartment;
 202     }
 203     else
 204     {
 205         HeapFree(GetProcessHeap(),0,value);
 206         *ppcomp = NULL;
 207     }
 208     return hr;
 209 }
 210
 211 static HRESULT WINAPI CompartmentMgr_ClearCompartment(ITfCompartmentMgr *iface,
 212     TfClientId tid, REFGUID rguid)
 213 {
 214     struct list *cursor;
 215     CompartmentMgr *This = (CompartmentMgr *)iface;
 216     TRACE("(%p) %i %s\n",This,tid,debugstr_guid(rguid));
 217
 218     LIST_FOR_EACH(cursor, &This->values)
 219     {
 220         CompartmentValue* value = LIST_ENTRY(cursor,CompartmentValue,entry);
 221         if (IsEqualGUID(rguid,&value->guid))
 222         {
 223             if (value->owner && tid != value->owner)
 224                 return E_UNEXPECTED;
 225             list_remove(cursor);
 226             ITfCompartment_Release(value->compartment);
 227             HeapFree(GetProcessHeap(),0,value);
 228             return S_OK;
 229         }
 230     }
 231
 232     return CONNECT_E_NOCONNECTION;
 233 }
 234
 235 static HRESULT WINAPI CompartmentMgr_EnumCompartments(ITfCompartmentMgr *iface,
 236  IEnumGUID **ppEnum)
 237 {
 238     CompartmentMgr *This = (CompartmentMgr *)iface;
 239     TRACE("(%p) %p\n",This,ppEnum);
 240     if (!ppEnum)
 241         return E_INVALIDARG;
 242     return CompartmentEnumGuid_Constructor(&This->values, ppEnum);
 243 }
 244
 245 static const ITfCompartmentMgrVtbl CompartmentMgr_CompartmentMgrVtbl =
 246 {
 247     CompartmentMgr_QueryInterface,
 248     CompartmentMgr_AddRef,
 249     CompartmentMgr_Release,
 250
 251     CompartmentMgr_GetCompartment,
 252     CompartmentMgr_ClearCompartment,
 253     CompartmentMgr_EnumCompartments
 254 };
 255
 256 HRESULT CompartmentMgr_Constructor(IUnknown *pUnkOuter, REFIID riid, IUnknown **ppOut)
 257 {
 258     CompartmentMgr *This;
 259
 260     if (!ppOut)
 261         return E_POINTER;
 262
 263     if (pUnkOuter && !IsEqualIID (riid, &IID_IUnknown))
 264         return CLASS_E_NOAGGREGATION;
 265
 266     This = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(CompartmentMgr));
 267     if (This == NULL)
 268         return E_OUTOFMEMORY;
 269
 270     This->CompartmentMgrVtbl = &CompartmentMgr_CompartmentMgrVtbl;
 271     This->pUnkOuter = pUnkOuter;
 272     list_init(&This->values);
 273
 274     if (pUnkOuter)
 275     {
 276         TRACE("returning %p\n", This);
 277         *ppOut = (IUnknown*)This;
 278         return S_OK;
 279     }
 280     else
 281     {
 282         HRESULT hr;
 283         hr = IUnknown_QueryInterface((IUnknown*)This, riid, (LPVOID*)ppOut);
 284         if (FAILED(hr))
 285             HeapFree(GetProcessHeap(),0,This);
 286         return hr;
 287     }
 288 }
 289
 290 /**************************************************
 291  * IEnumGUID implementation for ITfCompartmentMgr::EnumCompartments
 292  **************************************************/
 293 static void CompartmentEnumGuid_Destructor(CompartmentEnumGuid *This)
 294 {
 295     TRACE("destroying %p\n", This);
 296     HeapFree(GetProcessHeap(),0,This);
 297 }
 298
 299 static HRESULT WINAPI CompartmentEnumGuid_QueryInterface(IEnumGUID *iface, REFIID iid, LPVOID *ppvOut)
 300 {
 301     CompartmentEnumGuid *This = (CompartmentEnumGuid *)iface;
 302     *ppvOut = NULL;
 303
 304     if (IsEqualIID(iid, &IID_IUnknown) || IsEqualIID(iid, &IID_IEnumGUID))
 305     {
 306         *ppvOut = This;
 307     }
 308
 309     if (*ppvOut)
 310     {
 311         IUnknown_AddRef(iface);
 312         return S_OK;
 313     }
 314
 315     WARN("unsupported interface: %s\n", debugstr_guid(iid));
 316     return E_NOINTERFACE;
 317 }
 318
 319 static ULONG WINAPI CompartmentEnumGuid_AddRef(IEnumGUID *iface)
 320 {
 321     CompartmentEnumGuid *This = (CompartmentEnumGuid*)iface;
 322     return InterlockedIncrement(&This->refCount);
 323 }
 324
 325 static ULONG WINAPI CompartmentEnumGuid_Release(IEnumGUID *iface)
 326 {
 327     CompartmentEnumGuid *This = (CompartmentEnumGuid *)iface;
 328     ULONG ret;
 329
 330     ret = InterlockedDecrement(&This->refCount);
 331     if (ret == 0)
 332         CompartmentEnumGuid_Destructor(This);
 333     return ret;
 334 }
 335
 336 /*****************************************************
 337  * IEnumGuid functions
 338  *****************************************************/
 339 static HRESULT WINAPI CompartmentEnumGuid_Next( LPENUMGUID iface,
 340     ULONG celt, GUID *rgelt, ULONG *pceltFetched)
 341 {
 342     CompartmentEnumGuid *This = (CompartmentEnumGuid *)iface;
 343     ULONG fetched = 0;
 344
 345     TRACE("(%p)\n",This);
 346
 347     if (rgelt == NULL) return E_POINTER;
 348
 349     while (fetched < celt && This->cursor)
 350     {
 351         CompartmentValue* value = LIST_ENTRY(This->cursor,CompartmentValue,entry);
 352         if (!value)
 353             break;
 354
 355         This->cursor = list_next(This->values,This->cursor);
 356         *rgelt = value->guid;
 357
 358         ++fetched;
 359         ++rgelt;
 360     }
 361
 362     if (pceltFetched) *pceltFetched = fetched;
 363     return fetched == celt ? S_OK : S_FALSE;
 364 }
 365
 366 static HRESULT WINAPI CompartmentEnumGuid_Skip( LPENUMGUID iface, ULONG celt)
 367 {
 368     CompartmentEnumGuid *This = (CompartmentEnumGuid *)iface;
 369     TRACE("(%p)\n",This);
 370
 371     This->cursor = list_next(This->values,This->cursor);
 372     return S_OK;
 373 }
 374
 375 static HRESULT WINAPI CompartmentEnumGuid_Reset( LPENUMGUID iface)
 376 {
 377     CompartmentEnumGuid *This = (CompartmentEnumGuid *)iface;
 378     TRACE("(%p)\n",This);
 379     This->cursor = list_head(This->values);
 380     return S_OK;
 381 }
 382
 383 static HRESULT WINAPI CompartmentEnumGuid_Clone( LPENUMGUID iface,
 384     IEnumGUID **ppenum)
 385 {
 386     CompartmentEnumGuid *This = (CompartmentEnumGuid *)iface;
 387     HRESULT res;
 388
 389     TRACE("(%p)\n",This);
 390
 391     if (ppenum == NULL) return E_POINTER;
 392
 393     res = CompartmentEnumGuid_Constructor(This->values, ppenum);
 394     if (SUCCEEDED(res))
 395     {
 396         CompartmentEnumGuid *new_This = (CompartmentEnumGuid *)*ppenum;
 397         new_This->cursor = This->cursor;
 398     }
 399     return res;
 400 }
 401
 402 static const IEnumGUIDVtbl IEnumGUID_Vtbl ={
 403     CompartmentEnumGuid_QueryInterface,
 404     CompartmentEnumGuid_AddRef,
 405     CompartmentEnumGuid_Release,
 406
 407     CompartmentEnumGuid_Next,
 408     CompartmentEnumGuid_Skip,
 409     CompartmentEnumGuid_Reset,
 410     CompartmentEnumGuid_Clone
 411 };
 412
 413 static HRESULT CompartmentEnumGuid_Constructor(struct list *values, IEnumGUID **ppOut)
 414 {
 415     CompartmentEnumGuid *This;
 416
 417     This = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(CompartmentEnumGuid));
 418     if (This == NULL)
 419         return E_OUTOFMEMORY;
 420
 421     This->Vtbl= &IEnumGUID_Vtbl;
 422     This->refCount = 1;
 423
 424     This->values = values;
 425     This->cursor = list_head(values);
 426
 427     TRACE("returning %p\n", This);
 428     *ppOut = (IEnumGUID*)This;
 429     return S_OK;
 430 }
 431
 432 /**************************************************
 433  * ITfCompartment
 434  **************************************************/
 435 static void free_sink(CompartmentSink *sink)
 436 {
 437         IUnknown_Release(sink->interfaces.pIUnknown);
 438         HeapFree(GetProcessHeap(),0,sink);
 439 }
 440
 441 static void Compartment_Destructor(Compartment *This)
 442 {
 443     struct list *cursor, *cursor2;
 444     TRACE("destroying %p\n", This);
 445     VariantClear(&This->variant);
 446     LIST_FOR_EACH_SAFE(cursor, cursor2, &This->CompartmentEventSink)
 447     {
 448         CompartmentSink* sink = LIST_ENTRY(cursor,CompartmentSink,entry);
 449         list_remove(cursor);
 450         free_sink(sink);
 451     }
 452     HeapFree(GetProcessHeap(),0,This);
 453 }
 454
 455 static HRESULT WINAPI Compartment_QueryInterface(ITfCompartment *iface, REFIID iid, LPVOID *ppvOut)
 456 {
 457     Compartment *This = (Compartment *)iface;
 458     *ppvOut = NULL;
 459
 460     if (IsEqualIID(iid, &IID_IUnknown) || IsEqualIID(iid, &IID_ITfCompartment))
 461     {
 462         *ppvOut = This;
 463     }
 464     else if (IsEqualIID(iid, &IID_ITfSource))
 465     {
 466         *ppvOut = &This->SourceVtbl;
 467     }
 468
 469     if (*ppvOut)
 470     {
 471         IUnknown_AddRef(iface);
 472         return S_OK;
 473     }
 474
 475     WARN("unsupported interface: %s\n", debugstr_guid(iid));
 476     return E_NOINTERFACE;
 477 }
 478
 479 static ULONG WINAPI Compartment_AddRef(ITfCompartment *iface)
 480 {
 481     Compartment *This = (Compartment*)iface;
 482     return InterlockedIncrement(&This->refCount);
 483 }
 484
 485 static ULONG WINAPI Compartment_Release(ITfCompartment *iface)
 486 {
 487     Compartment *This = (Compartment *)iface;
 488     ULONG ret;
 489
 490     ret = InterlockedDecrement(&This->refCount);
 491     if (ret == 0)
 492         Compartment_Destructor(This);
 493     return ret;
 494 }
 495
 496 static HRESULT WINAPI Compartment_SetValue(ITfCompartment *iface,
 497     TfClientId tid, const VARIANT *pvarValue)
 498 {
 499     Compartment *This = (Compartment *)iface;
 500     struct list *cursor;
 501
 502     TRACE("(%p) %i %p\n",This,tid,pvarValue);
 503
 504     if (!pvarValue)
 505         return E_INVALIDARG;
 506
 507     if (!(V_VT(pvarValue) == VT_BSTR || V_VT(pvarValue) == VT_I4 ||
 508           V_VT(pvarValue) == VT_UNKNOWN))
 509         return E_INVALIDARG;
 510
 511     if (!This->valueData->owner)
 512         This->valueData->owner = tid;
 513
 514     VariantClear(&This->variant);
 515
 516     /* Shallow copy of value and type */
 517     This->variant = *pvarValue;
 518
 519     if (V_VT(pvarValue) == VT_BSTR)
 520         V_BSTR(&This->variant) = SysAllocStringByteLen((char*)V_BSTR(pvarValue),
 521                 SysStringByteLen(V_BSTR(pvarValue)));
 522     else if (V_VT(pvarValue) == VT_UNKNOWN)
 523         IUnknown_AddRef(V_UNKNOWN(&This->variant));
 524
 525     LIST_FOR_EACH(cursor, &This->CompartmentEventSink)
 526     {
 527         CompartmentSink* sink = LIST_ENTRY(cursor,CompartmentSink,entry);
 528         ITfCompartmentEventSink_OnChange(sink->interfaces.pITfCompartmentEventSink,&This->valueData->guid);
 529     }
 530
 531     return S_OK;
 532 }
 533
 534 static HRESULT WINAPI Compartment_GetValue(ITfCompartment *iface,
 535     VARIANT *pvarValue)
 536 {
 537     Compartment *This = (Compartment *)iface;
 538     TRACE("(%p) %p\n",This, pvarValue);
 539
 540     if (!pvarValue)
 541         return E_INVALIDARG;
 542
 543     VariantInit(pvarValue);
 544     if (V_VT(&This->variant) == VT_EMPTY) return S_FALSE;
 545     return VariantCopy(pvarValue,&This->variant);
 546 }
 547
 548 static const ITfCompartmentVtbl ITfCompartment_Vtbl ={
 549     Compartment_QueryInterface,
 550     Compartment_AddRef,
 551     Compartment_Release,
 552
 553     Compartment_SetValue,
 554     Compartment_GetValue
 555 };
 556
 557 /*****************************************************
 558  * ITfSource functions
 559  *****************************************************/
 560
 561 static HRESULT WINAPI Source_QueryInterface(ITfSource *iface, REFIID iid, LPVOID *ppvOut)
 562 {
 563     Compartment *This = impl_from_ITfSourceVtbl(iface);
 564     return Compartment_QueryInterface((ITfCompartment *)This, iid, *ppvOut);
 565 }
 566
 567 static ULONG WINAPI Source_AddRef(ITfSource *iface)
 568 {
 569     Compartment *This = impl_from_ITfSourceVtbl(iface);
 570     return Compartment_AddRef((ITfCompartment*)This);
 571 }
 572
 573 static ULONG WINAPI Source_Release(ITfSource *iface)
 574 {
 575     Compartment *This = impl_from_ITfSourceVtbl(iface);
 576     return Compartment_Release((ITfCompartment *)This);
 577 }
 578
 579 static HRESULT WINAPI CompartmentSource_AdviseSink(ITfSource *iface,
 580         REFIID riid, IUnknown *punk, DWORD *pdwCookie)
 581 {
 582     CompartmentSink *cs;
 583     Compartment *This = impl_from_ITfSourceVtbl(iface);
 584
 585     TRACE("(%p) %s %p %p\n",This,debugstr_guid(riid),punk,pdwCookie);
 586
 587     if (!riid || !punk || !pdwCookie)
 588         return E_INVALIDARG;
 589
 590     if (IsEqualIID(riid, &IID_ITfCompartmentEventSink))
 591     {
 592         cs = HeapAlloc(GetProcessHeap(),0,sizeof(CompartmentSink));
 593         if (!cs)
 594             return E_OUTOFMEMORY;
 595         if (FAILED(IUnknown_QueryInterface(punk, riid, (LPVOID *)&cs->interfaces.pITfCompartmentEventSink)))
 596         {
 597             HeapFree(GetProcessHeap(),0,cs);
 598             return CONNECT_E_CANNOTCONNECT;
 599         }
 600         list_add_head(&This->CompartmentEventSink,&cs->entry);
 601         *pdwCookie = generate_Cookie(COOKIE_MAGIC_COMPARTMENTSINK , cs);
 602     }
 603     else
 604     {
 605         FIXME("(%p) Unhandled Sink: %s\n",This,debugstr_guid(riid));
 606         return E_NOTIMPL;
 607     }
 608
 609     TRACE("cookie %x\n",*pdwCookie);
 610
 611     return S_OK;
 612 }
 613
 614 static HRESULT WINAPI CompartmentSource_UnadviseSink(ITfSource *iface, DWORD pdwCookie)
 615 {
 616     CompartmentSink *sink;
 617     Compartment *This = impl_from_ITfSourceVtbl(iface);
 618
 619     TRACE("(%p) %x\n",This,pdwCookie);
 620
 621     if (get_Cookie_magic(pdwCookie)!=COOKIE_MAGIC_COMPARTMENTSINK)
 622         return E_INVALIDARG;
 623
 624     sink = (CompartmentSink*)remove_Cookie(pdwCookie);
 625     if (!sink)
 626         return CONNECT_E_NOCONNECTION;
 627
 628     list_remove(&sink->entry);
 629     free_sink(sink);
 630
 631     return S_OK;
 632 }
 633
 634 static const ITfSourceVtbl Compartment_SourceVtbl =
 635 {
 636     Source_QueryInterface,
 637     Source_AddRef,
 638     Source_Release,
 639
 640     CompartmentSource_AdviseSink,
 641     CompartmentSource_UnadviseSink,
 642 };
 643
 644 static HRESULT Compartment_Constructor(CompartmentValue *valueData, ITfCompartment **ppOut)
 645 {
 646     Compartment *This;
 647
 648     This = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(Compartment));
 649     if (This == NULL)
 650         return E_OUTOFMEMORY;
 651
 652     This->Vtbl= &ITfCompartment_Vtbl;
 653     This->SourceVtbl = &Compartment_SourceVtbl;
 654     This->refCount = 1;
 655
 656     This->valueData = valueData;
 657     VariantInit(&This->variant);
 658
 659     list_init(&This->CompartmentEventSink);
 660
 661     TRACE("returning %p\n", This);
 662     *ppOut = (ITfCompartment*)This;
 663     return S_OK;
 664 }