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 <stdarg.h> 23 #include <string.h> 24 25 #define COBJMACROS 26 #define NONAMELESSUNION 27 28 #include "windef.h" 29 #include "winbase.h" 30 #include "winerror.h" 31 #include "winuser.h" 32 #include "objbase.h" 33 #include "oleidl.h" 34 #include "wine/debug.h" 35 #include "moniker.h" 36 37 WINE_DEFAULT_DEBUG_CHANNEL(ole); 38 39 /* PointerMoniker data structure */ 40 typedef struct PointerMonikerImpl{ 41 42 IMoniker IMoniker_iface; 43 44 LONG ref; /* reference counter for this object */ 45 46 IUnknown *pObject; /* custom marshaler */ 47 } PointerMonikerImpl; 48 49 static inline PointerMonikerImpl *impl_from_IMoniker(IMoniker *iface) 50 { 51 return CONTAINING_RECORD(iface, PointerMonikerImpl, IMoniker_iface); 52 } 53 54 static HRESULT WINAPI 55 PointerMonikerImpl_QueryInterface(IMoniker* iface,REFIID riid,void** ppvObject) 56 { 57 PointerMonikerImpl *This = impl_from_IMoniker(iface); 58 59 TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppvObject); 60 61 /* Perform a sanity check on the parameters.*/ 62 if ( (This==0) || (ppvObject==0) ) 63 return E_INVALIDARG; 64 65 /* Initialize the return parameter */ 66 *ppvObject = 0; 67 68 /* Compare the riid with the interface IDs implemented by this object.*/ 69 if (IsEqualIID(&IID_IUnknown, riid) || 70 IsEqualIID(&IID_IPersist, riid) || 71 IsEqualIID(&IID_IPersistStream, riid) || 72 IsEqualIID(&IID_IMoniker, riid)) 73 *ppvObject = iface; 74 75 /* Check that we obtained an interface.*/ 76 if ((*ppvObject)==0) 77 return E_NOINTERFACE; 78 79 /* always increase the reference count by one when it is successful */ 80 IMoniker_AddRef(iface); 81 82 return S_OK; 83 } 84 85 /****************************************************************************** 86 * PointerMoniker_AddRef 87 ******************************************************************************/ 88 static ULONG WINAPI 89 PointerMonikerImpl_AddRef(IMoniker* iface) 90 { 91 PointerMonikerImpl *This = impl_from_IMoniker(iface); 92 93 TRACE("(%p)\n",This); 94 95 return InterlockedIncrement(&This->ref); 96 } 97 98 /****************************************************************************** 99 * PointerMoniker_Release 100 ******************************************************************************/ 101 static ULONG WINAPI 102 PointerMonikerImpl_Release(IMoniker* iface) 103 { 104 PointerMonikerImpl *This = impl_from_IMoniker(iface); 105 ULONG ref; 106 107 TRACE("(%p)\n",This); 108 109 ref = InterlockedDecrement(&This->ref); 110 111 /* destroy the object if there are no more references on it */ 112 if (ref == 0) 113 { 114 if (This->pObject) IUnknown_Release(This->pObject); 115 HeapFree(GetProcessHeap(),0,This); 116 } 117 118 return ref; 119 } 120 121 /****************************************************************************** 122 * PointerMoniker_GetClassID 123 ******************************************************************************/ 124 static HRESULT WINAPI 125 PointerMonikerImpl_GetClassID(IMoniker* iface,CLSID *pClassID) 126 { 127 TRACE("(%p,%p)\n",iface,pClassID); 128 129 if (pClassID==NULL) 130 return E_POINTER; 131 132 *pClassID = CLSID_PointerMoniker; 133 134 return S_OK; 135 } 136 137 /****************************************************************************** 138 * PointerMoniker_IsDirty 139 ******************************************************************************/ 140 static HRESULT WINAPI 141 PointerMonikerImpl_IsDirty(IMoniker* iface) 142 { 143 /* Note that the OLE-provided implementations of the IPersistStream::IsDirty 144 method in the OLE-provided moniker interfaces always return S_FALSE because 145 their internal state never changes. */ 146 147 TRACE("(%p)\n",iface); 148 149 return S_FALSE; 150 } 151 152 /****************************************************************************** 153 * PointerMoniker_Load 154 ******************************************************************************/ 155 static HRESULT WINAPI 156 PointerMonikerImpl_Load(IMoniker* iface,IStream* pStm) 157 { 158 TRACE("(%p)\n", pStm); 159 160 return E_NOTIMPL; 161 } 162 163 /****************************************************************************** 164 * PointerMoniker_Save 165 ******************************************************************************/ 166 static HRESULT WINAPI 167 PointerMonikerImpl_Save(IMoniker* iface, IStream* pStm, BOOL fClearDirty) 168 { 169 TRACE("(%p, %d)\n", pStm, fClearDirty); 170 171 return E_NOTIMPL; 172 } 173 174 /****************************************************************************** 175 * PointerMoniker_GetSizeMax 176 * 177 * PARAMS 178 * pcbSize [out] Pointer to size of stream needed to save object 179 ******************************************************************************/ 180 static HRESULT WINAPI 181 PointerMonikerImpl_GetSizeMax(IMoniker* iface, ULARGE_INTEGER* pcbSize) 182 { 183 TRACE("(%p,%p)\n",iface,pcbSize); 184 185 if (!pcbSize) 186 return E_POINTER; 187 188 pcbSize->u.LowPart = 0; 189 pcbSize->u.HighPart = 0; 190 191 return E_NOTIMPL; 192 } 193 194 /****************************************************************************** 195 * PointerMoniker_BindToObject 196 ******************************************************************************/ 197 static HRESULT WINAPI 198 PointerMonikerImpl_BindToObject(IMoniker* iface, IBindCtx* pbc, IMoniker* pmkToLeft, 199 REFIID riid, VOID** ppvResult) 200 { 201 PointerMonikerImpl *This = impl_from_IMoniker(iface); 202 203 TRACE("(%p,%p,%p,%s,%p)\n",iface,pbc,pmkToLeft,debugstr_guid(riid),ppvResult); 204 205 if (!This->pObject) 206 return E_UNEXPECTED; 207 208 return IUnknown_QueryInterface(This->pObject, riid, ppvResult); 209 } 210 211 /****************************************************************************** 212 * PointerMoniker_BindToStorage 213 ******************************************************************************/ 214 static HRESULT WINAPI 215 PointerMonikerImpl_BindToStorage(IMoniker* iface, IBindCtx* pbc, IMoniker* pmkToLeft, 216 REFIID riid, VOID** ppvResult) 217 { 218 PointerMonikerImpl *This = impl_from_IMoniker(iface); 219 220 TRACE("(%p,%p,%p,%s,%p)\n",iface,pbc,pmkToLeft,debugstr_guid(riid),ppvResult); 221 222 if (!This->pObject) 223 return E_UNEXPECTED; 224 225 return IUnknown_QueryInterface(This->pObject, riid, ppvResult); 226 } 227 228 /****************************************************************************** 229 * PointerMoniker_Reduce 230 ******************************************************************************/ 231 static HRESULT WINAPI 232 PointerMonikerImpl_Reduce(IMoniker* iface, IBindCtx* pbc, DWORD dwReduceHowFar, 233 IMoniker** ppmkToLeft, IMoniker** ppmkReduced) 234 { 235 TRACE("(%p,%p,%d,%p,%p)\n",iface,pbc,dwReduceHowFar,ppmkToLeft,ppmkReduced); 236 237 if (ppmkReduced==NULL) 238 return E_POINTER; 239 240 PointerMonikerImpl_AddRef(iface); 241 242 *ppmkReduced=iface; 243 244 return MK_S_REDUCED_TO_SELF; 245 } 246 /****************************************************************************** 247 * PointerMoniker_ComposeWith 248 ******************************************************************************/ 249 static HRESULT WINAPI 250 PointerMonikerImpl_ComposeWith(IMoniker* iface, IMoniker* pmkRight, 251 BOOL fOnlyIfNotGeneric, IMoniker** ppmkComposite) 252 { 253 254 HRESULT res=S_OK; 255 DWORD mkSys,mkSys2; 256 IEnumMoniker* penumMk=0; 257 IMoniker *pmostLeftMk=0; 258 IMoniker* tempMkComposite=0; 259 260 TRACE("(%p,%d,%p)\n", pmkRight, fOnlyIfNotGeneric, ppmkComposite); 261 262 if ((ppmkComposite==NULL)||(pmkRight==NULL)) 263 return E_POINTER; 264 265 *ppmkComposite=0; 266 267 IMoniker_IsSystemMoniker(pmkRight,&mkSys); 268 269 /* If pmkRight is an anti-moniker, the returned moniker is NULL */ 270 if(mkSys==MKSYS_ANTIMONIKER) 271 return res; 272 273 else 274 /* if pmkRight is a composite whose leftmost component is an anti-moniker, */ 275 /* the returned moniker is the composite after the leftmost anti-moniker is removed. */ 276 277 if(mkSys==MKSYS_GENERICCOMPOSITE){ 278 279 res=IMoniker_Enum(pmkRight,TRUE,&penumMk); 280 281 if (FAILED(res)) 282 return res; 283 284 res=IEnumMoniker_Next(penumMk,1,&pmostLeftMk,NULL); 285 286 IMoniker_IsSystemMoniker(pmostLeftMk,&mkSys2); 287 288 if(mkSys2==MKSYS_ANTIMONIKER){ 289 290 IMoniker_Release(pmostLeftMk); 291 292 tempMkComposite=iface; 293 IMoniker_AddRef(iface); 294 295 while(IEnumMoniker_Next(penumMk,1,&pmostLeftMk,NULL)==S_OK){ 296 297 res=CreateGenericComposite(tempMkComposite,pmostLeftMk,ppmkComposite); 298 299 IMoniker_Release(tempMkComposite); 300 IMoniker_Release(pmostLeftMk); 301 302 tempMkComposite=*ppmkComposite; 303 IMoniker_AddRef(tempMkComposite); 304 } 305 return res; 306 } 307 else 308 return CreateGenericComposite(iface,pmkRight,ppmkComposite); 309 } 310 /* If pmkRight is not an anti-moniker, the method combines the two monikers into a generic 311 composite if fOnlyIfNotGeneric is FALSE; if fOnlyIfNotGeneric is TRUE, the method returns 312 a NULL moniker and a return value of MK_E_NEEDGENERIC */ 313 else 314 if (!fOnlyIfNotGeneric) 315 return CreateGenericComposite(iface,pmkRight,ppmkComposite); 316 317 else 318 return MK_E_NEEDGENERIC; 319 } 320 321 /****************************************************************************** 322 * PointerMoniker_Enum 323 ******************************************************************************/ 324 static HRESULT WINAPI 325 PointerMonikerImpl_Enum(IMoniker* iface,BOOL fForward, IEnumMoniker** ppenumMoniker) 326 { 327 TRACE("(%p,%d,%p)\n",iface,fForward,ppenumMoniker); 328 329 if (ppenumMoniker == NULL) 330 return E_POINTER; 331 332 *ppenumMoniker = NULL; 333 334 return S_OK; 335 } 336 337 /****************************************************************************** 338 * PointerMoniker_IsEqual 339 ******************************************************************************/ 340 static HRESULT WINAPI 341 PointerMonikerImpl_IsEqual(IMoniker* iface,IMoniker* pmkOtherMoniker) 342 { 343 PointerMonikerImpl *This = impl_from_IMoniker(iface); 344 DWORD mkSys; 345 346 TRACE("(%p,%p)\n",iface,pmkOtherMoniker); 347 348 if (pmkOtherMoniker==NULL) 349 return S_FALSE; 350 351 IMoniker_IsSystemMoniker(pmkOtherMoniker,&mkSys); 352 353 if (mkSys==MKSYS_POINTERMONIKER) 354 { 355 PointerMonikerImpl *pOtherMoniker = impl_from_IMoniker(pmkOtherMoniker); 356 return This->pObject == pOtherMoniker->pObject ? S_OK : S_FALSE; 357 } 358 else 359 return S_FALSE; 360 } 361 362 /****************************************************************************** 363 * PointerMoniker_Hash 364 ******************************************************************************/ 365 static HRESULT WINAPI PointerMonikerImpl_Hash(IMoniker* iface,DWORD* pdwHash) 366 { 367 PointerMonikerImpl *This = impl_from_IMoniker(iface); 368 369 if (pdwHash==NULL) 370 return E_POINTER; 371 372 *pdwHash = PtrToUlong(This->pObject); 373 374 return S_OK; 375 } 376 377 /****************************************************************************** 378 * PointerMoniker_IsRunning 379 ******************************************************************************/ 380 static HRESULT WINAPI 381 PointerMonikerImpl_IsRunning(IMoniker* iface, IBindCtx* pbc, IMoniker* pmkToLeft, 382 IMoniker* pmkNewlyRunning) 383 { 384 TRACE("(%p,%p,%p,%p)\n",iface,pbc,pmkToLeft,pmkNewlyRunning); 385 386 return S_OK; 387 } 388 389 /****************************************************************************** 390 * PointerMoniker_GetTimeOfLastChange 391 ******************************************************************************/ 392 static HRESULT WINAPI PointerMonikerImpl_GetTimeOfLastChange(IMoniker* iface, 393 IBindCtx* pbc, 394 IMoniker* pmkToLeft, 395 FILETIME* pAntiTime) 396 { 397 TRACE("(%p,%p,%p,%p)\n",iface,pbc,pmkToLeft,pAntiTime); 398 return E_NOTIMPL; 399 } 400 401 /****************************************************************************** 402 * PointerMoniker_Inverse 403 ******************************************************************************/ 404 static HRESULT WINAPI 405 PointerMonikerImpl_Inverse(IMoniker* iface,IMoniker** ppmk) 406 { 407 TRACE("(%p,%p)\n",iface,ppmk); 408 409 return CreateAntiMoniker(ppmk); 410 } 411 412 /****************************************************************************** 413 * PointerMoniker_CommonPrefixWith 414 ******************************************************************************/ 415 static HRESULT WINAPI 416 PointerMonikerImpl_CommonPrefixWith(IMoniker* iface,IMoniker* pmkOther,IMoniker** ppmkPrefix) 417 { 418 TRACE("(%p, %p)\n", pmkOther, ppmkPrefix); 419 420 *ppmkPrefix = NULL; 421 422 if (PointerMonikerImpl_IsEqual(iface, pmkOther)) 423 { 424 IMoniker_AddRef(iface); 425 426 *ppmkPrefix=iface; 427 428 return MK_S_US; 429 } 430 else 431 return MK_E_NOPREFIX; 432 } 433 434 /****************************************************************************** 435 * PointerMoniker_RelativePathTo 436 ******************************************************************************/ 437 static HRESULT WINAPI 438 PointerMonikerImpl_RelativePathTo(IMoniker* iface,IMoniker* pmOther, IMoniker** ppmkRelPath) 439 { 440 TRACE("(%p,%p,%p)\n",iface,pmOther,ppmkRelPath); 441 442 if (ppmkRelPath==NULL) 443 return E_POINTER; 444 445 *ppmkRelPath = NULL; 446 447 return E_NOTIMPL; 448 } 449 450 /****************************************************************************** 451 * PointerMoniker_GetDisplayName 452 ******************************************************************************/ 453 static HRESULT WINAPI 454 PointerMonikerImpl_GetDisplayName(IMoniker* iface, IBindCtx* pbc, 455 IMoniker* pmkToLeft, LPOLESTR *ppszDisplayName) 456 { 457 TRACE("(%p,%p,%p,%p)\n",iface,pbc,pmkToLeft,ppszDisplayName); 458 459 if (ppszDisplayName==NULL) 460 return E_POINTER; 461 462 *ppszDisplayName = NULL; 463 return E_NOTIMPL; 464 } 465 466 /****************************************************************************** 467 * PointerMoniker_ParseDisplayName 468 ******************************************************************************/ 469 static HRESULT WINAPI 470 PointerMonikerImpl_ParseDisplayName(IMoniker* iface, IBindCtx* pbc, 471 IMoniker* pmkToLeft, LPOLESTR pszDisplayName, 472 ULONG* pchEaten, IMoniker** ppmkOut) 473 { 474 PointerMonikerImpl *This = impl_from_IMoniker(iface); 475 HRESULT hr; 476 IParseDisplayName *pPDN; 477 478 TRACE("(%p,%p,%p,%p,%p,%p)\n",iface,pbc,pmkToLeft,pszDisplayName,pchEaten,ppmkOut); 479 480 if (pmkToLeft) 481 return MK_E_SYNTAX; 482 483 if (!This->pObject) 484 return E_UNEXPECTED; 485 486 hr = IUnknown_QueryInterface(This->pObject, &IID_IParseDisplayName, (void **)&pPDN); 487 if (FAILED(hr)) 488 return hr; 489 490 hr = IParseDisplayName_ParseDisplayName(pPDN, pbc, pszDisplayName, pchEaten, ppmkOut); 491 IParseDisplayName_Release(pPDN); 492 493 return hr; 494 } 495 496 /****************************************************************************** 497 * PointerMoniker_IsSystemMoniker 498 ******************************************************************************/ 499 static HRESULT WINAPI 500 PointerMonikerImpl_IsSystemMoniker(IMoniker* iface,DWORD* pwdMksys) 501 { 502 TRACE("(%p,%p)\n",iface,pwdMksys); 503 504 if (!pwdMksys) 505 return E_POINTER; 506 507 *pwdMksys = MKSYS_POINTERMONIKER; 508 509 return S_OK; 510 } 511 512 /********************************************************************************/ 513 /* Virtual function table for the PointerMonikerImpl class which include IPersist,*/ 514 /* IPersistStream and IMoniker functions. */ 515 static const IMonikerVtbl VT_PointerMonikerImpl = 516 { 517 PointerMonikerImpl_QueryInterface, 518 PointerMonikerImpl_AddRef, 519 PointerMonikerImpl_Release, 520 PointerMonikerImpl_GetClassID, 521 PointerMonikerImpl_IsDirty, 522 PointerMonikerImpl_Load, 523 PointerMonikerImpl_Save, 524 PointerMonikerImpl_GetSizeMax, 525 PointerMonikerImpl_BindToObject, 526 PointerMonikerImpl_BindToStorage, 527 PointerMonikerImpl_Reduce, 528 PointerMonikerImpl_ComposeWith, 529 PointerMonikerImpl_Enum, 530 PointerMonikerImpl_IsEqual, 531 PointerMonikerImpl_Hash, 532 PointerMonikerImpl_IsRunning, 533 PointerMonikerImpl_GetTimeOfLastChange, 534 PointerMonikerImpl_Inverse, 535 PointerMonikerImpl_CommonPrefixWith, 536 PointerMonikerImpl_RelativePathTo, 537 PointerMonikerImpl_GetDisplayName, 538 PointerMonikerImpl_ParseDisplayName, 539 PointerMonikerImpl_IsSystemMoniker 540 }; 541 542 /****************************************************************************** 543 * PointerMoniker_Construct (local function) 544 *******************************************************************************/ 545 static void PointerMonikerImpl_Construct(PointerMonikerImpl* This, IUnknown *punk) 546 { 547 TRACE("(%p)\n",This); 548 549 /* Initialize the virtual function table. */ 550 This->IMoniker_iface.lpVtbl = &VT_PointerMonikerImpl; 551 This->ref = 1; 552 if (punk) 553 IUnknown_AddRef(punk); 554 This->pObject = punk; 555 } 556 557 /*********************************************************************** 558 * CreatePointerMoniker (OLE32.@) 559 * 560 * Creates a moniker which represents a pointer. 561 * 562 * PARAMS 563 * punk [I] Pointer to the object to represent. 564 * ppmk [O] Address that receives the pointer to the created moniker. 565 * 566 * RETURNS 567 * Success: S_OK. 568 * Failure: Any HRESULT code. 569 */ 570 HRESULT WINAPI CreatePointerMoniker(LPUNKNOWN punk, LPMONIKER *ppmk) 571 { 572 PointerMonikerImpl *This; 573 574 TRACE("(%p, %p)\n", punk, ppmk); 575 576 if (!ppmk) 577 return E_INVALIDARG; 578 579 This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This)); 580 if (!This) 581 { 582 *ppmk = NULL; 583 return E_OUTOFMEMORY; 584 } 585 586 PointerMonikerImpl_Construct(This, punk); 587 *ppmk = &This->IMoniker_iface; 588 return S_OK; 589 } 590 591 HRESULT WINAPI PointerMoniker_CreateInstance(IClassFactory *iface, 592 IUnknown *pUnk, REFIID riid, void **ppv) 593 { 594 IMoniker *pMoniker; 595 HRESULT hr; 596 597 TRACE("(%p, %s, %p)\n", pUnk, debugstr_guid(riid), ppv); 598 599 *ppv = NULL; 600 601 if (pUnk) 602 return CLASS_E_NOAGGREGATION; 603 604 hr = CreatePointerMoniker(NULL, &pMoniker); 605 if (FAILED(hr)) 606 return hr; 607 608 hr = IMoniker_QueryInterface(pMoniker, riid, ppv); 609 610 if (FAILED(hr)) 611 IMoniker_Release(pMoniker); 612 613 return hr; 614 } 615