dll/win32/msctf/documentmgr.c

   1 /*
   2  *  ITfDocumentMgr 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 #include "config.h"
  22
  23 #include <stdarg.h>
  24
  25 #define COBJMACROS
  26
  27 #include "wine/debug.h"
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winreg.h"
  31 #include "winuser.h"
  32 #include "shlwapi.h"
  33 #include "winerror.h"
  34 #include "objbase.h"
  35
  36 #include "wine/unicode.h"
  37
  38 #include "msctf.h"
  39 #include "msctf_internal.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(msctf);
  42
  43 typedef struct tagDocumentMgr {
  44     const ITfDocumentMgrVtbl *DocumentMgrVtbl;
  45     const ITfSourceVtbl *SourceVtbl;
  46     LONG refCount;
  47
  48     /* Aggregation */
  49     ITfCompartmentMgr  *CompartmentMgr;
  50
  51     ITfContext*  contextStack[2]; /* limit of 2 contexts */
  52     ITfThreadMgrEventSink* ThreadMgrSink;
  53 } DocumentMgr;
  54
  55 typedef struct tagEnumTfContext {
  56     const IEnumTfContextsVtbl *Vtbl;
  57     LONG refCount;
  58
  59     DWORD   index;
  60     DocumentMgr *docmgr;
  61 } EnumTfContext;
  62
  63 static HRESULT EnumTfContext_Constructor(DocumentMgr* mgr, IEnumTfContexts **ppOut);
  64
  65 static inline DocumentMgr *impl_from_ITfSourceVtbl(ITfSource *iface)
  66 {
  67     return (DocumentMgr *)((char *)iface - FIELD_OFFSET(DocumentMgr,SourceVtbl));
  68 }
  69
  70 static void DocumentMgr_Destructor(DocumentMgr *This)
  71 {
  72     ITfThreadMgr *tm;
  73     TRACE("destroying %p\n", This);
  74
  75     TF_GetThreadMgr(&tm);
  76     ThreadMgr_OnDocumentMgrDestruction(tm, (ITfDocumentMgr*)This);
  77
  78     if (This->contextStack[0])
  79         ITfContext_Release(This->contextStack[0]);
  80     if (This->contextStack[1])
  81         ITfContext_Release(This->contextStack[1]);
  82     CompartmentMgr_Destructor(This->CompartmentMgr);
  83     HeapFree(GetProcessHeap(),0,This);
  84 }
  85
  86 static HRESULT WINAPI DocumentMgr_QueryInterface(ITfDocumentMgr *iface, REFIID iid, LPVOID *ppvOut)
  87 {
  88     DocumentMgr *This = (DocumentMgr *)iface;
  89     *ppvOut = NULL;
  90
  91     if (IsEqualIID(iid, &IID_IUnknown) || IsEqualIID(iid, &IID_ITfDocumentMgr))
  92     {
  93         *ppvOut = This;
  94     }
  95     else if (IsEqualIID(iid, &IID_ITfSource))
  96     {
  97         *ppvOut = &This->SourceVtbl;
  98     }
  99     else if (IsEqualIID(iid, &IID_ITfCompartmentMgr))
 100     {
 101         *ppvOut = This->CompartmentMgr;
 102     }
 103
 104     if (*ppvOut)
 105     {
 106         IUnknown_AddRef(iface);
 107         return S_OK;
 108     }
 109
 110     WARN("unsupported interface: %s\n", debugstr_guid(iid));
 111     return E_NOINTERFACE;
 112 }
 113
 114 static ULONG WINAPI DocumentMgr_AddRef(ITfDocumentMgr *iface)
 115 {
 116     DocumentMgr *This = (DocumentMgr *)iface;
 117     return InterlockedIncrement(&This->refCount);
 118 }
 119
 120 static ULONG WINAPI DocumentMgr_Release(ITfDocumentMgr *iface)
 121 {
 122     DocumentMgr *This = (DocumentMgr *)iface;
 123     ULONG ret;
 124
 125     ret = InterlockedDecrement(&This->refCount);
 126     if (ret == 0)
 127         DocumentMgr_Destructor(This);
 128     return ret;
 129 }
 130
 131 /*****************************************************
 132  * ITfDocumentMgr functions
 133  *****************************************************/
 134 static HRESULT WINAPI DocumentMgr_CreateContext(ITfDocumentMgr *iface,
 135         TfClientId tidOwner,
 136         DWORD dwFlags, IUnknown *punk, ITfContext **ppic,
 137         TfEditCookie *pecTextStore)
 138 {
 139     DocumentMgr *This = (DocumentMgr *)iface;
 140     TRACE("(%p) 0x%x 0x%x %p %p %p\n",This,tidOwner,dwFlags,punk,ppic,pecTextStore);
 141     return Context_Constructor(tidOwner, punk, iface, ppic, pecTextStore);
 142 }
 143
 144 static HRESULT WINAPI DocumentMgr_Push(ITfDocumentMgr *iface, ITfContext *pic)
 145 {
 146     DocumentMgr *This = (DocumentMgr *)iface;
 147     ITfContext *check;
 148
 149     TRACE("(%p) %p\n",This,pic);
 150
 151     if (This->contextStack[1])  /* FUll */
 152         return TF_E_STACKFULL;
 153
 154     if (!pic || FAILED(IUnknown_QueryInterface(pic,&IID_ITfContext,(LPVOID*) &check)))
 155         return E_INVALIDARG;
 156
 157     if (This->contextStack[0] == NULL)
 158         ITfThreadMgrEventSink_OnInitDocumentMgr(This->ThreadMgrSink,iface);
 159
 160     This->contextStack[1] = This->contextStack[0];
 161     This->contextStack[0] = check;
 162
 163     Context_Initialize(check, iface);
 164     ITfThreadMgrEventSink_OnPushContext(This->ThreadMgrSink,check);
 165
 166     return S_OK;
 167 }
 168
 169 static HRESULT WINAPI DocumentMgr_Pop(ITfDocumentMgr *iface, DWORD dwFlags)
 170 {
 171     DocumentMgr *This = (DocumentMgr *)iface;
 172     TRACE("(%p) 0x%x\n",This,dwFlags);
 173
 174     if (dwFlags == TF_POPF_ALL)
 175     {
 176         if (This->contextStack[0])
 177         {
 178             ITfThreadMgrEventSink_OnPopContext(This->ThreadMgrSink,This->contextStack[0]);
 179             ITfContext_Release(This->contextStack[0]);
 180             Context_Uninitialize(This->contextStack[0]);
 181         }
 182         if (This->contextStack[1])
 183         {
 184             ITfThreadMgrEventSink_OnPopContext(This->ThreadMgrSink,This->contextStack[1]);
 185             ITfContext_Release(This->contextStack[1]);
 186             Context_Uninitialize(This->contextStack[1]);
 187         }
 188         This->contextStack[0] = This->contextStack[1] = NULL;
 189         ITfThreadMgrEventSink_OnUninitDocumentMgr(This->ThreadMgrSink, iface);
 190         return S_OK;
 191     }
 192
 193     if (dwFlags)
 194         return E_INVALIDARG;
 195
 196     if (This->contextStack[1] == NULL) /* Cannot pop last context */
 197         return E_FAIL;
 198
 199     ITfThreadMgrEventSink_OnPopContext(This->ThreadMgrSink,This->contextStack[0]);
 200     ITfContext_Release(This->contextStack[0]);
 201     Context_Uninitialize(This->contextStack[0]);
 202     This->contextStack[0] = This->contextStack[1];
 203     This->contextStack[1] = NULL;
 204
 205     if (This->contextStack[0] == NULL)
 206         ITfThreadMgrEventSink_OnUninitDocumentMgr(This->ThreadMgrSink, iface);
 207
 208     return S_OK;
 209 }
 210
 211 static HRESULT WINAPI DocumentMgr_GetTop(ITfDocumentMgr *iface, ITfContext **ppic)
 212 {
 213     DocumentMgr *This = (DocumentMgr *)iface;
 214     TRACE("(%p)\n",This);
 215     if (!ppic)
 216         return E_INVALIDARG;
 217
 218     if (This->contextStack[0])
 219         ITfContext_AddRef(This->contextStack[0]);
 220
 221     *ppic = This->contextStack[0];
 222
 223     return S_OK;
 224 }
 225
 226 static HRESULT WINAPI DocumentMgr_GetBase(ITfDocumentMgr *iface, ITfContext **ppic)
 227 {
 228     DocumentMgr *This = (DocumentMgr *)iface;
 229     ITfContext *tgt;
 230
 231     TRACE("(%p)\n",This);
 232     if (!ppic)
 233         return E_INVALIDARG;
 234
 235     if (This->contextStack[1])
 236         tgt = This->contextStack[1];
 237     else
 238         tgt = This->contextStack[0];
 239
 240     if (tgt)
 241         ITfContext_AddRef(tgt);
 242
 243     *ppic = tgt;
 244
 245     return S_OK;
 246 }
 247
 248 static HRESULT WINAPI DocumentMgr_EnumContexts(ITfDocumentMgr *iface, IEnumTfContexts **ppEnum)
 249 {
 250     DocumentMgr *This = (DocumentMgr *)iface;
 251     TRACE("(%p) %p\n",This,ppEnum);
 252     return EnumTfContext_Constructor(This, ppEnum);
 253 }
 254
 255 static const ITfDocumentMgrVtbl DocumentMgr_DocumentMgrVtbl =
 256 {
 257     DocumentMgr_QueryInterface,
 258     DocumentMgr_AddRef,
 259     DocumentMgr_Release,
 260
 261     DocumentMgr_CreateContext,
 262     DocumentMgr_Push,
 263     DocumentMgr_Pop,
 264     DocumentMgr_GetTop,
 265     DocumentMgr_GetBase,
 266     DocumentMgr_EnumContexts
 267 };
 268
 269
 270 static HRESULT WINAPI Source_QueryInterface(ITfSource *iface, REFIID iid, LPVOID *ppvOut)
 271 {
 272     DocumentMgr *This = impl_from_ITfSourceVtbl(iface);
 273     return DocumentMgr_QueryInterface((ITfDocumentMgr*)This, iid, *ppvOut);
 274 }
 275
 276 static ULONG WINAPI Source_AddRef(ITfSource *iface)
 277 {
 278     DocumentMgr *This = impl_from_ITfSourceVtbl(iface);
 279     return DocumentMgr_AddRef((ITfDocumentMgr*)This);
 280 }
 281
 282 static ULONG WINAPI Source_Release(ITfSource *iface)
 283 {
 284     DocumentMgr *This = impl_from_ITfSourceVtbl(iface);
 285     return DocumentMgr_Release((ITfDocumentMgr*)This);
 286 }
 287
 288 /*****************************************************
 289  * ITfSource functions
 290  *****************************************************/
 291 static HRESULT WINAPI DocumentMgrSource_AdviseSink(ITfSource *iface,
 292         REFIID riid, IUnknown *punk, DWORD *pdwCookie)
 293 {
 294     DocumentMgr *This = impl_from_ITfSourceVtbl(iface);
 295     FIXME("STUB:(%p)\n",This);
 296     return E_NOTIMPL;
 297 }
 298
 299 static HRESULT WINAPI DocumentMgrSource_UnadviseSink(ITfSource *iface, DWORD pdwCookie)
 300 {
 301     DocumentMgr *This = impl_from_ITfSourceVtbl(iface);
 302     FIXME("STUB:(%p)\n",This);
 303     return E_NOTIMPL;
 304 }
 305
 306 static const ITfSourceVtbl DocumentMgr_SourceVtbl =
 307 {
 308     Source_QueryInterface,
 309     Source_AddRef,
 310     Source_Release,
 311
 312     DocumentMgrSource_AdviseSink,
 313     DocumentMgrSource_UnadviseSink,
 314 };
 315
 316 HRESULT DocumentMgr_Constructor(ITfThreadMgrEventSink *ThreadMgrSink, ITfDocumentMgr **ppOut)
 317 {
 318     DocumentMgr *This;
 319
 320     This = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(DocumentMgr));
 321     if (This == NULL)
 322         return E_OUTOFMEMORY;
 323
 324     This->DocumentMgrVtbl= &DocumentMgr_DocumentMgrVtbl;
 325     This->SourceVtbl = &DocumentMgr_SourceVtbl;
 326     This->refCount = 1;
 327     This->ThreadMgrSink = ThreadMgrSink;
 328
 329     CompartmentMgr_Constructor((IUnknown*)This, &IID_IUnknown, (IUnknown**)&This->CompartmentMgr);
 330
 331     TRACE("returning %p\n", This);
 332     *ppOut = (ITfDocumentMgr*)This;
 333     return S_OK;
 334 }
 335
 336 /**************************************************
 337  * IEnumTfContexts implementaion
 338  **************************************************/
 339 static void EnumTfContext_Destructor(EnumTfContext *This)
 340 {
 341     TRACE("destroying %p\n", This);
 342     HeapFree(GetProcessHeap(),0,This);
 343 }
 344
 345 static HRESULT WINAPI EnumTfContext_QueryInterface(IEnumTfContexts *iface, REFIID iid, LPVOID *ppvOut)
 346 {
 347     EnumTfContext *This = (EnumTfContext *)iface;
 348     *ppvOut = NULL;
 349
 350     if (IsEqualIID(iid, &IID_IUnknown) || IsEqualIID(iid, &IID_IEnumTfContexts))
 351     {
 352         *ppvOut = This;
 353     }
 354
 355     if (*ppvOut)
 356     {
 357         IUnknown_AddRef(iface);
 358         return S_OK;
 359     }
 360
 361     WARN("unsupported interface: %s\n", debugstr_guid(iid));
 362     return E_NOINTERFACE;
 363 }
 364
 365 static ULONG WINAPI EnumTfContext_AddRef(IEnumTfContexts *iface)
 366 {
 367     EnumTfContext *This = (EnumTfContext*)iface;
 368     return InterlockedIncrement(&This->refCount);
 369 }
 370
 371 static ULONG WINAPI EnumTfContext_Release(IEnumTfContexts *iface)
 372 {
 373     EnumTfContext *This = (EnumTfContext *)iface;
 374     ULONG ret;
 375
 376     ret = InterlockedDecrement(&This->refCount);
 377     if (ret == 0)
 378         EnumTfContext_Destructor(This);
 379     return ret;
 380 }
 381
 382 static HRESULT WINAPI EnumTfContext_Next(IEnumTfContexts *iface,
 383     ULONG ulCount, ITfContext **rgContext, ULONG *pcFetched)
 384 {
 385     EnumTfContext *This = (EnumTfContext *)iface;
 386     ULONG fetched = 0;
 387
 388     TRACE("(%p)\n",This);
 389
 390     if (rgContext == NULL) return E_POINTER;
 391
 392     while (fetched < ulCount)
 393     {
 394         if (This->index > 1)
 395             break;
 396
 397         if (!This->docmgr->contextStack[This->index])
 398             break;
 399
 400         *rgContext = This->docmgr->contextStack[This->index];
 401         ITfContext_AddRef(*rgContext);
 402
 403         ++This->index;
 404         ++fetched;
 405         ++rgContext;
 406     }
 407
 408     if (pcFetched) *pcFetched = fetched;
 409     return fetched == ulCount ? S_OK : S_FALSE;
 410 }
 411
 412 static HRESULT WINAPI EnumTfContext_Skip( IEnumTfContexts* iface, ULONG celt)
 413 {
 414     EnumTfContext *This = (EnumTfContext *)iface;
 415     TRACE("(%p)\n",This);
 416     This->index += celt;
 417     return S_OK;
 418 }
 419
 420 static HRESULT WINAPI EnumTfContext_Reset( IEnumTfContexts* iface)
 421 {
 422     EnumTfContext *This = (EnumTfContext *)iface;
 423     TRACE("(%p)\n",This);
 424     This->index = 0;
 425     return S_OK;
 426 }
 427
 428 static HRESULT WINAPI EnumTfContext_Clone( IEnumTfContexts *iface,
 429     IEnumTfContexts **ppenum)
 430 {
 431     EnumTfContext *This = (EnumTfContext *)iface;
 432     HRESULT res;
 433
 434     TRACE("(%p)\n",This);
 435
 436     if (ppenum == NULL) return E_POINTER;
 437
 438     res = EnumTfContext_Constructor(This->docmgr, ppenum);
 439     if (SUCCEEDED(res))
 440     {
 441         EnumTfContext *new_This = (EnumTfContext *)*ppenum;
 442         new_This->index = This->index;
 443     }
 444     return res;
 445 }
 446
 447 static const IEnumTfContextsVtbl IEnumTfContexts_Vtbl ={
 448     EnumTfContext_QueryInterface,
 449     EnumTfContext_AddRef,
 450     EnumTfContext_Release,
 451
 452     EnumTfContext_Clone,
 453     EnumTfContext_Next,
 454     EnumTfContext_Reset,
 455     EnumTfContext_Skip
 456 };
 457
 458 static HRESULT EnumTfContext_Constructor(DocumentMgr *mgr, IEnumTfContexts **ppOut)
 459 {
 460     EnumTfContext *This;
 461
 462     This = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(EnumTfContext));
 463     if (This == NULL)
 464         return E_OUTOFMEMORY;
 465
 466     This->Vtbl= &IEnumTfContexts_Vtbl;
 467     This->refCount = 1;
 468     This->docmgr = mgr;
 469
 470     TRACE("returning %p\n", This);
 471     *ppOut = (IEnumTfContexts*)This;
 472     return S_OK;
 473 }