1 /* 2 * Pointer Moniker Implementation 3 * 4 * Copyright 1999 Noomen Hamza 5 * Copyright 2008 Robert Shearman (for CodeWeavers) 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 "precomp.h" 23 24 WINE_DEFAULT_DEBUG_CHANNEL(ole); 25 26 /* PointerMoniker data structure */ 27 typedef struct PointerMonikerImpl{ 28 29 IMoniker IMoniker_iface; 30 31 LONG ref; /* reference counter for this object */ 32 33 IUnknown *pObject; /* custom marshaler */ 34 } PointerMonikerImpl; 35 36 static inline PointerMonikerImpl *impl_from_IMoniker(IMoniker *iface) 37 { 38 return CONTAINING_RECORD(iface, PointerMonikerImpl, IMoniker_iface); 39 } 40 41 static HRESULT WINAPI 42 PointerMonikerImpl_QueryInterface(IMoniker* iface,REFIID riid,void** ppvObject) 43 { 44 PointerMonikerImpl *This = impl_from_IMoniker(iface); 45 46 TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppvObject); 47 48 /* Perform a sanity check on the parameters.*/ 49 if ( (This==0) || (ppvObject==0) ) 50 return E_INVALIDARG; 51 52 /* Initialize the return parameter */ 53 *ppvObject = 0; 54 55 /* Compare the riid with the interface IDs implemented by this object.*/ 56 if (IsEqualIID(&IID_IUnknown, riid) || 57 IsEqualIID(&IID_IPersist, riid) || 58 IsEqualIID(&IID_IPersistStream, riid) || 59 IsEqualIID(&IID_IMoniker, riid)) 60 *ppvObject = iface; 61 62 /* Check that we obtained an interface.*/ 63 if ((*ppvObject)==0) 64 return E_NOINTERFACE; 65 66 /* always increase the reference count by one when it is successful */ 67 IMoniker_AddRef(iface); 68 69 return S_OK; 70 } 71 72 /****************************************************************************** 73 * PointerMoniker_AddRef 74 ******************************************************************************/ 75 static ULONG WINAPI 76 PointerMonikerImpl_AddRef(IMoniker* iface) 77 { 78 PointerMonikerImpl *This = impl_from_IMoniker(iface); 79 80 TRACE("(%p)\n",This); 81 82 return InterlockedIncrement(&This->ref); 83 } 84 85 /****************************************************************************** 86 * PointerMoniker_Release 87 ******************************************************************************/ 88 static ULONG WINAPI 89 PointerMonikerImpl_Release(IMoniker* iface) 90 { 91 PointerMonikerImpl *This = impl_from_IMoniker(iface); 92 ULONG ref; 93 94 TRACE("(%p)\n",This); 95 96 ref = InterlockedDecrement(&This->ref); 97 98 /* destroy the object if there are no more references on it */ 99 if (ref == 0) 100 { 101 if (This->pObject) IUnknown_Release(This->pObject); 102 HeapFree(GetProcessHeap(),0,This); 103 } 104 105 return ref; 106 } 107 108 /****************************************************************************** 109 * PointerMoniker_GetClassID 110 ******************************************************************************/ 111 static HRESULT WINAPI 112 PointerMonikerImpl_GetClassID(IMoniker* iface,CLSID *pClassID) 113 { 114 TRACE("(%p,%p)\n",iface,pClassID); 115 116 if (pClassID==NULL) 117 return E_POINTER; 118 119 *pClassID = CLSID_PointerMoniker; 120 121 return S_OK; 122 } 123 124 /****************************************************************************** 125 * PointerMoniker_IsDirty 126 ******************************************************************************/ 127 static HRESULT WINAPI 128 PointerMonikerImpl_IsDirty(IMoniker* iface) 129 { 130 /* Note that the OLE-provided implementations of the IPersistStream::IsDirty 131 method in the OLE-provided moniker interfaces always return S_FALSE because 132 their internal state never changes. */ 133 134 TRACE("(%p)\n",iface); 135 136 return S_FALSE; 137 } 138 139 /****************************************************************************** 140 * PointerMoniker_Load 141 ******************************************************************************/ 142 static HRESULT WINAPI 143 PointerMonikerImpl_Load(IMoniker* iface,IStream* pStm) 144 { 145 TRACE("(%p)\n", pStm); 146 147 return E_NOTIMPL; 148 } 149 150 /****************************************************************************** 151 * PointerMoniker_Save 152 ******************************************************************************/ 153 static HRESULT WINAPI 154 PointerMonikerImpl_Save(IMoniker* iface, IStream* pStm, BOOL fClearDirty) 155 { 156 TRACE("(%p, %d)\n", pStm, fClearDirty); 157 158 return E_NOTIMPL; 159 } 160 161 /****************************************************************************** 162 * PointerMoniker_GetSizeMax 163 * 164 * PARAMS 165 * pcbSize [out] Pointer to size of stream needed to save object 166 ******************************************************************************/ 167 static HRESULT WINAPI 168 PointerMonikerImpl_GetSizeMax(IMoniker* iface, ULARGE_INTEGER* pcbSize) 169 { 170 TRACE("(%p,%p)\n",iface,pcbSize); 171 172 if (!pcbSize) 173 return E_POINTER; 174 175 pcbSize->u.LowPart = 0; 176 pcbSize->u.HighPart = 0; 177 178 return E_NOTIMPL; 179 } 180 181 /****************************************************************************** 182 * PointerMoniker_BindToObject 183 ******************************************************************************/ 184 static HRESULT WINAPI 185 PointerMonikerImpl_BindToObject(IMoniker* iface, IBindCtx* pbc, IMoniker* pmkToLeft, 186 REFIID riid, VOID** ppvResult) 187 { 188 PointerMonikerImpl *This = impl_from_IMoniker(iface); 189 190 TRACE("(%p,%p,%p,%s,%p)\n",iface,pbc,pmkToLeft,debugstr_guid(riid),ppvResult); 191 192 if (!This->pObject) 193 return E_UNEXPECTED; 194 195 return IUnknown_QueryInterface(This->pObject, riid, ppvResult); 196 } 197 198 /****************************************************************************** 199 * PointerMoniker_BindToStorage 200 ******************************************************************************/ 201 static HRESULT WINAPI 202 PointerMonikerImpl_BindToStorage(IMoniker* iface, IBindCtx* pbc, IMoniker* pmkToLeft, 203 REFIID riid, VOID** ppvResult) 204 { 205 PointerMonikerImpl *This = impl_from_IMoniker(iface); 206 207 TRACE("(%p,%p,%p,%s,%p)\n",iface,pbc,pmkToLeft,debugstr_guid(riid),ppvResult); 208 209 if (!This->pObject) 210 return E_UNEXPECTED; 211 212 return IUnknown_QueryInterface(This->pObject, riid, ppvResult); 213 } 214 215 /****************************************************************************** 216 * PointerMoniker_Reduce 217 ******************************************************************************/ 218 static HRESULT WINAPI 219 PointerMonikerImpl_Reduce(IMoniker* iface, IBindCtx* pbc, DWORD dwReduceHowFar, 220 IMoniker** ppmkToLeft, IMoniker** ppmkReduced) 221 { 222 TRACE("(%p,%p,%d,%p,%p)\n",iface,pbc,dwReduceHowFar,ppmkToLeft,ppmkReduced); 223 224 if (ppmkReduced==NULL) 225 return E_POINTER; 226 227 PointerMonikerImpl_AddRef(iface); 228 229 *ppmkReduced=iface; 230 231 return MK_S_REDUCED_TO_SELF; 232 } 233 /****************************************************************************** 234 * PointerMoniker_ComposeWith 235 ******************************************************************************/ 236 static HRESULT WINAPI 237 PointerMonikerImpl_ComposeWith(IMoniker* iface, IMoniker* pmkRight, 238 BOOL fOnlyIfNotGeneric, IMoniker** ppmkComposite) 239 { 240 241 HRESULT res=S_OK; 242 DWORD mkSys,mkSys2; 243 IEnumMoniker* penumMk=0; 244 IMoniker *pmostLeftMk=0; 245 IMoniker* tempMkComposite=0; 246 247 TRACE("(%p,%d,%p)\n", pmkRight, fOnlyIfNotGeneric, ppmkComposite); 248 249 if ((ppmkComposite==NULL)||(pmkRight==NULL)) 250 return E_POINTER; 251 252 *ppmkComposite=0; 253 254 IMoniker_IsSystemMoniker(pmkRight,&mkSys); 255 256 /* If pmkRight is an anti-moniker, the returned moniker is NULL */ 257 if(mkSys==MKSYS_ANTIMONIKER) 258 return res; 259 260 else 261 /* if pmkRight is a composite whose leftmost component is an anti-moniker, */ 262 /* the returned moniker is the composite after the leftmost anti-moniker is removed. */ 263 264 if(mkSys==MKSYS_GENERICCOMPOSITE){ 265 266 res=IMoniker_Enum(pmkRight,TRUE,&penumMk); 267 268 if (FAILED(res)) 269 return res; 270 271 res=IEnumMoniker_Next(penumMk,1,&pmostLeftMk,NULL); 272 273 IMoniker_IsSystemMoniker(pmostLeftMk,&mkSys2); 274 275 if(mkSys2==MKSYS_ANTIMONIKER){ 276 277 IMoniker_Release(pmostLeftMk); 278 279 tempMkComposite=iface; 280 IMoniker_AddRef(iface); 281 282 while(IEnumMoniker_Next(penumMk,1,&pmostLeftMk,NULL)==S_OK){ 283 284 res=CreateGenericComposite(tempMkComposite,pmostLeftMk,ppmkComposite); 285 286 IMoniker_Release(tempMkComposite); 287 IMoniker_Release(pmostLeftMk); 288 289 tempMkComposite=*ppmkComposite; 290 IMoniker_AddRef(tempMkComposite); 291 } 292 return res; 293 } 294 else 295 return CreateGenericComposite(iface,pmkRight,ppmkComposite); 296 } 297 /* If pmkRight is not an anti-moniker, the method combines the two monikers into a generic 298 composite if fOnlyIfNotGeneric is FALSE; if fOnlyIfNotGeneric is TRUE, the method returns 299 a NULL moniker and a return value of MK_E_NEEDGENERIC */ 300 else 301 if (!fOnlyIfNotGeneric) 302 return CreateGenericComposite(iface,pmkRight,ppmkComposite); 303 304 else 305 return MK_E_NEEDGENERIC; 306 } 307 308 /****************************************************************************** 309 * PointerMoniker_Enum 310 ******************************************************************************/ 311 static HRESULT WINAPI 312 PointerMonikerImpl_Enum(IMoniker* iface,BOOL fForward, IEnumMoniker** ppenumMoniker) 313 { 314 TRACE("(%p,%d,%p)\n",iface,fForward,ppenumMoniker); 315 316 if (ppenumMoniker == NULL) 317 return E_POINTER; 318 319 *ppenumMoniker = NULL; 320 321 return S_OK; 322 } 323 324 /****************************************************************************** 325 * PointerMoniker_IsEqual 326 ******************************************************************************/ 327 static HRESULT WINAPI 328 PointerMonikerImpl_IsEqual(IMoniker* iface,IMoniker* pmkOtherMoniker) 329 { 330 PointerMonikerImpl *This = impl_from_IMoniker(iface); 331 DWORD mkSys; 332 333 TRACE("(%p,%p)\n",iface,pmkOtherMoniker); 334 335 if (pmkOtherMoniker==NULL) 336 return S_FALSE; 337 338 IMoniker_IsSystemMoniker(pmkOtherMoniker,&mkSys); 339 340 if (mkSys==MKSYS_POINTERMONIKER) 341 { 342 PointerMonikerImpl *pOtherMoniker = impl_from_IMoniker(pmkOtherMoniker); 343 return This->pObject == pOtherMoniker->pObject ? S_OK : S_FALSE; 344 } 345 else 346 return S_FALSE; 347 } 348 349 /****************************************************************************** 350 * PointerMoniker_Hash 351 ******************************************************************************/ 352 static HRESULT WINAPI PointerMonikerImpl_Hash(IMoniker* iface,DWORD* pdwHash) 353 { 354 PointerMonikerImpl *This = impl_from_IMoniker(iface); 355 356 if (pdwHash==NULL) 357 return E_POINTER; 358 359 *pdwHash = PtrToUlong(This->pObject); 360 361 return S_OK; 362 } 363 364 /****************************************************************************** 365 * PointerMoniker_IsRunning 366 ******************************************************************************/ 367 static HRESULT WINAPI 368 PointerMonikerImpl_IsRunning(IMoniker* iface, IBindCtx* pbc, IMoniker* pmkToLeft, 369 IMoniker* pmkNewlyRunning) 370 { 371 TRACE("(%p,%p,%p,%p)\n",iface,pbc,pmkToLeft,pmkNewlyRunning); 372 373 return S_OK; 374 } 375 376 /****************************************************************************** 377 * PointerMoniker_GetTimeOfLastChange 378 ******************************************************************************/ 379 static HRESULT WINAPI PointerMonikerImpl_GetTimeOfLastChange(IMoniker* iface, 380 IBindCtx* pbc, 381 IMoniker* pmkToLeft, 382 FILETIME* pAntiTime) 383 { 384 TRACE("(%p,%p,%p,%p)\n",iface,pbc,pmkToLeft,pAntiTime); 385 return E_NOTIMPL; 386 } 387 388 /****************************************************************************** 389 * PointerMoniker_Inverse 390 ******************************************************************************/ 391 static HRESULT WINAPI 392 PointerMonikerImpl_Inverse(IMoniker* iface,IMoniker** ppmk) 393 { 394 TRACE("(%p,%p)\n",iface,ppmk); 395 396 return CreateAntiMoniker(ppmk); 397 } 398 399 /****************************************************************************** 400 * PointerMoniker_CommonPrefixWith 401 ******************************************************************************/ 402 static HRESULT WINAPI 403 PointerMonikerImpl_CommonPrefixWith(IMoniker* iface,IMoniker* pmkOther,IMoniker** ppmkPrefix) 404 { 405 TRACE("(%p, %p)\n", pmkOther, ppmkPrefix); 406 407 *ppmkPrefix = NULL; 408 409 if (PointerMonikerImpl_IsEqual(iface, pmkOther)) 410 { 411 IMoniker_AddRef(iface); 412 413 *ppmkPrefix=iface; 414 415 return MK_S_US; 416 } 417 else 418 return MK_E_NOPREFIX; 419 } 420 421 /****************************************************************************** 422 * PointerMoniker_RelativePathTo 423 ******************************************************************************/ 424 static HRESULT WINAPI 425 PointerMonikerImpl_RelativePathTo(IMoniker* iface,IMoniker* pmOther, IMoniker** ppmkRelPath) 426 { 427 TRACE("(%p,%p,%p)\n",iface,pmOther,ppmkRelPath); 428 429 if (ppmkRelPath==NULL) 430 return E_POINTER; 431 432 *ppmkRelPath = NULL; 433 434 return E_NOTIMPL; 435 } 436 437 /****************************************************************************** 438 * PointerMoniker_GetDisplayName 439 ******************************************************************************/ 440 static HRESULT WINAPI 441 PointerMonikerImpl_GetDisplayName(IMoniker* iface, IBindCtx* pbc, 442 IMoniker* pmkToLeft, LPOLESTR *ppszDisplayName) 443 { 444 TRACE("(%p,%p,%p,%p)\n",iface,pbc,pmkToLeft,ppszDisplayName); 445 446 if (ppszDisplayName==NULL) 447 return E_POINTER; 448 449 *ppszDisplayName = NULL; 450 return E_NOTIMPL; 451 } 452 453 /****************************************************************************** 454 * PointerMoniker_ParseDisplayName 455 ******************************************************************************/ 456 static HRESULT WINAPI 457 PointerMonikerImpl_ParseDisplayName(IMoniker* iface, IBindCtx* pbc, 458 IMoniker* pmkToLeft, LPOLESTR pszDisplayName, 459 ULONG* pchEaten, IMoniker** ppmkOut) 460 { 461 PointerMonikerImpl *This = impl_from_IMoniker(iface); 462 HRESULT hr; 463 IParseDisplayName *pPDN; 464 465 TRACE("(%p,%p,%p,%p,%p,%p)\n",iface,pbc,pmkToLeft,pszDisplayName,pchEaten,ppmkOut); 466 467 if (pmkToLeft) 468 return MK_E_SYNTAX; 469 470 if (!This->pObject) 471 return E_UNEXPECTED; 472 473 hr = IUnknown_QueryInterface(This->pObject, &IID_IParseDisplayName, (void **)&pPDN); 474 if (FAILED(hr)) 475 return hr; 476 477 hr = IParseDisplayName_ParseDisplayName(pPDN, pbc, pszDisplayName, pchEaten, ppmkOut); 478 IParseDisplayName_Release(pPDN); 479 480 return hr; 481 } 482 483 /****************************************************************************** 484 * PointerMoniker_IsSystemMoniker 485 ******************************************************************************/ 486 static HRESULT WINAPI 487 PointerMonikerImpl_IsSystemMoniker(IMoniker* iface,DWORD* pwdMksys) 488 { 489 TRACE("(%p,%p)\n",iface,pwdMksys); 490 491 if (!pwdMksys) 492 return E_POINTER; 493 494 *pwdMksys = MKSYS_POINTERMONIKER; 495 496 return S_OK; 497 } 498 499 /********************************************************************************/ 500 /* Virtual function table for the PointerMonikerImpl class which include IPersist,*/ 501 /* IPersistStream and IMoniker functions. */ 502 static const IMonikerVtbl VT_PointerMonikerImpl = 503 { 504 PointerMonikerImpl_QueryInterface, 505 PointerMonikerImpl_AddRef, 506 PointerMonikerImpl_Release, 507 PointerMonikerImpl_GetClassID, 508 PointerMonikerImpl_IsDirty, 509 PointerMonikerImpl_Load, 510 PointerMonikerImpl_Save, 511 PointerMonikerImpl_GetSizeMax, 512 PointerMonikerImpl_BindToObject, 513 PointerMonikerImpl_BindToStorage, 514 PointerMonikerImpl_Reduce, 515 PointerMonikerImpl_ComposeWith, 516 PointerMonikerImpl_Enum, 517 PointerMonikerImpl_IsEqual, 518 PointerMonikerImpl_Hash, 519 PointerMonikerImpl_IsRunning, 520 PointerMonikerImpl_GetTimeOfLastChange, 521 PointerMonikerImpl_Inverse, 522 PointerMonikerImpl_CommonPrefixWith, 523 PointerMonikerImpl_RelativePathTo, 524 PointerMonikerImpl_GetDisplayName, 525 PointerMonikerImpl_ParseDisplayName, 526 PointerMonikerImpl_IsSystemMoniker 527 }; 528 529 /****************************************************************************** 530 * PointerMoniker_Construct (local function) 531 *******************************************************************************/ 532 static void PointerMonikerImpl_Construct(PointerMonikerImpl* This, IUnknown *punk) 533 { 534 TRACE("(%p)\n",This); 535 536 /* Initialize the virtual function table. */ 537 This->IMoniker_iface.lpVtbl = &VT_PointerMonikerImpl; 538 This->ref = 1; 539 if (punk) 540 IUnknown_AddRef(punk); 541 This->pObject = punk; 542 } 543 544 /*********************************************************************** 545 * CreatePointerMoniker (OLE32.@) 546 * 547 * Creates a moniker which represents a pointer. 548 * 549 * PARAMS 550 * punk [I] Pointer to the object to represent. 551 * ppmk [O] Address that receives the pointer to the created moniker. 552 * 553 * RETURNS 554 * Success: S_OK. 555 * Failure: Any HRESULT code. 556 */ 557 HRESULT WINAPI CreatePointerMoniker(LPUNKNOWN punk, LPMONIKER *ppmk) 558 { 559 PointerMonikerImpl *This; 560 561 TRACE("(%p, %p)\n", punk, ppmk); 562 563 if (!ppmk) 564 return E_INVALIDARG; 565 566 This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This)); 567 if (!This) 568 { 569 *ppmk = NULL; 570 return E_OUTOFMEMORY; 571 } 572 573 PointerMonikerImpl_Construct(This, punk); 574 *ppmk = &This->IMoniker_iface; 575 return S_OK; 576 } 577 578 HRESULT WINAPI PointerMoniker_CreateInstance(IClassFactory *iface, 579 IUnknown *pUnk, REFIID riid, void **ppv) 580 { 581 IMoniker *pMoniker; 582 HRESULT hr; 583 584 TRACE("(%p, %s, %p)\n", pUnk, debugstr_guid(riid), ppv); 585 586 *ppv = NULL; 587 588 if (pUnk) 589 return CLASS_E_NOAGGREGATION; 590 591 hr = CreatePointerMoniker(NULL, &pMoniker); 592 if (FAILED(hr)) 593 return hr; 594 595 hr = IMoniker_QueryInterface(pMoniker, riid, ppv); 596 597 if (FAILED(hr)) 598 IMoniker_Release(pMoniker); 599 600 return hr; 601 } 602