dlls/shell32/shellole.c

   1 /*
   2  *      handling of SHELL32.DLL OLE-Objects
   3  *
   4  *      Copyright 1997  Marcus Meissner
   5  *      Copyright 1998  Juergen Schmied  <juergen.schmied@metronet.de>
   6  *
   7  */
   8
   9 #include <stdlib.h>
  10 #include <string.h>
  11
  12 #include "wine/obj_base.h"
  13 #include "wine/obj_shelllink.h"
  14 #include "wine/obj_shellfolder.h"
  15 #include "wine/obj_shellbrowser.h"
  16 #include "wine/obj_contextmenu.h"
  17 #include "wine/obj_shellextinit.h"
  18 #include "wine/obj_extracticon.h"
  19
  20 #include "shlguid.h"
  21 #include "winversion.h"
  22 #include "winreg.h"
  23 #include "winerror.h"
  24 #include "debugtools.h"
  25
  26 #include "shell32_main.h"
  27
  28 DEFAULT_DEBUG_CHANNEL(shell)
  29
  30 DWORD WINAPI SHCLSIDFromStringA (LPSTR clsid, CLSID *id);
  31 extern IShellFolder * IShellFolder_Constructor(
  32         IShellFolder * psf,
  33         LPITEMIDLIST pidl);
  34 extern HRESULT IFSFolder_Constructor(
  35         IUnknown * pUnkOuter,
  36         REFIID riid,
  37         LPVOID * ppv);
  38
  39 /*************************************************************************
  40  * SHCoCreateInstance [SHELL32.102]
  41  *
  42  * NOTES
  43  *     exported by ordinal
  44  */
  45 LRESULT WINAPI SHCoCreateInstance(
  46         LPSTR aclsid,
  47         REFCLSID clsid,
  48         IUnknown * unknownouter,
  49         REFIID refiid,
  50         LPVOID *ppv)
  51 {
  52         DWORD   hres;
  53         IID     iid;
  54         CLSID * myclsid = (CLSID*)clsid;
  55
  56         if (!clsid)
  57         {
  58           if (!aclsid) return REGDB_E_CLASSNOTREG;
  59           SHCLSIDFromStringA(aclsid, &iid);
  60           myclsid = &iid;
  61         }
  62
  63         TRACE("(%p,\n\tCLSID:\t%s, unk:%p\n\tIID:\t%s,%p)\n",
  64                 aclsid,debugstr_guid(myclsid),unknownouter,debugstr_guid(refiid),ppv);
  65
  66         if IsEqualCLSID(myclsid, &CLSID_ShellFSFolder)
  67         {
  68           hres = IFSFolder_Constructor(unknownouter, refiid, ppv);
  69         }
  70         else
  71         {
  72           hres = CoCreateInstance(myclsid, unknownouter, CLSCTX_INPROC_SERVER, refiid, ppv);
  73         }
  74
  75         if(hres!=S_OK)
  76         {
  77           ERR("failed (0x%08lx) to create \n\tCLSID:\t%s\n\tIID:\t%s\n",
  78               hres, debugstr_guid(myclsid), debugstr_guid(refiid));
  79           ERR("class not found in registry\n");
  80         }
  81
  82         TRACE("-- instance: %p\n",*ppv);
  83         return hres;
  84 }
  85
  86 /*************************************************************************
  87  * SHELL32_DllGetClassObject   [SHELL32.128]
  88  */
  89 HRESULT WINAPI SHELL32_DllGetClassObject(REFCLSID rclsid, REFIID iid,LPVOID *ppv)
  90 {       HRESULT hres = E_OUTOFMEMORY;
  91         LPCLASSFACTORY lpclf;
  92
  93         TRACE("\n\tCLSID:\t%s,\n\tIID:\t%s\n",debugstr_guid(rclsid),debugstr_guid(iid));
  94
  95         *ppv = NULL;
  96
  97         if(IsEqualCLSID(rclsid, &CLSID_ShellDesktop)||
  98            IsEqualCLSID(rclsid, &CLSID_ShellLink))
  99         {
 100           lpclf = IClassFactory_Constructor( rclsid );
 101
 102           if(lpclf)
 103           {
 104             hres = IClassFactory_QueryInterface(lpclf,iid, ppv);
 105             IClassFactory_Release(lpclf);
 106           }
 107         }
 108         else
 109         {
 110           WARN("-- CLSID not found\n");
 111           hres = CLASS_E_CLASSNOTAVAILABLE;
 112         }
 113         TRACE("-- pointer to class factory: %p\n",*ppv);
 114         return hres;
 115 }
 116
 117 /*************************************************************************
 118  * SHCLSIDFromString                            [SHELL32.147]
 119  *
 120  * NOTES
 121  *     exported by ordinal
 122  */
 123 DWORD WINAPI SHCLSIDFromStringA (LPSTR clsid, CLSID *id)
 124 {
 125         TRACE("(%p(%s) %p)\n", clsid, clsid, id);
 126         return CLSIDFromString16(clsid, id);
 127 }
 128 DWORD WINAPI SHCLSIDFromStringW (LPWSTR clsid, CLSID *id)
 129 {
 130         TRACE("(%p(%s) %p)\n", clsid, debugstr_w(clsid), id);
 131         return CLSIDFromString(clsid, id);
 132 }
 133 DWORD WINAPI SHCLSIDFromStringAW (LPVOID clsid, CLSID *id)
 134 {
 135         if (VERSION_OsIsUnicode())
 136           return SHCLSIDFromStringW (clsid, id);
 137         return SHCLSIDFromStringA (clsid, id);
 138 }
 139
 140 /*************************************************************************
 141  *                       SHGetMalloc                    [SHELL32.220]
 142  * returns the interface to shell malloc.
 143  *
 144  * [SDK header win95/shlobj.h:
 145  * equivalent to:  #define SHGetMalloc(ppmem)   CoGetMalloc(MEMCTX_TASK, ppmem)
 146  * ]
 147  * What we are currently doing is not very wrong, since we always use the same
 148  * heap (ProcessHeap).
 149  */
 150 DWORD WINAPI SHGetMalloc(LPMALLOC *lpmal)
 151 {
 152         TRACE("(%p)\n", lpmal);
 153         return CoGetMalloc(0,lpmal);
 154 }
 155
 156 /*************************************************************************
 157  * SHGetDesktopFolder                   [SHELL32.216]
 158  */
 159 LPSHELLFOLDER pdesktopfolder=NULL;
 160
 161 DWORD WINAPI SHGetDesktopFolder(IShellFolder **psf)
 162 {
 163         HRESULT hres = S_OK;
 164         LPCLASSFACTORY lpclf;
 165         TRACE("%p->(%p)\n",psf,*psf);
 166
 167         *psf=NULL;
 168
 169         if (!pdesktopfolder)
 170         {
 171           lpclf = IClassFactory_Constructor(&CLSID_ShellDesktop);
 172           if(lpclf)
 173           {
 174             hres = IClassFactory_CreateInstance(lpclf,NULL,(REFIID)&IID_IShellFolder, (void*)&pdesktopfolder);
 175             IClassFactory_Release(lpclf);
 176           }
 177         }
 178
 179         if (pdesktopfolder)
 180         {
 181           /* even if we create the folder, add a ref so the application can´t destroy the folder*/
 182           IShellFolder_AddRef(pdesktopfolder);
 183           *psf = pdesktopfolder;
 184         }
 185
 186         TRACE("-- %p->(%p)\n",psf, *psf);
 187         return hres;
 188 }
 189
 190 /**************************************************************************
 191 *  IClassFactory Implementation
 192 */
 193
 194 typedef struct
 195 {
 196     /* IUnknown fields */
 197     ICOM_VFIELD(IClassFactory);
 198     DWORD                       ref;
 199     CLSID                       *rclsid;
 200 } IClassFactoryImpl;
 201
 202 static ICOM_VTABLE(IClassFactory) clfvt;
 203
 204 /**************************************************************************
 205  *  IClassFactory_Constructor
 206  */
 207
 208 LPCLASSFACTORY IClassFactory_Constructor(REFCLSID rclsid)
 209 {
 210         IClassFactoryImpl* lpclf;
 211
 212         lpclf= (IClassFactoryImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(IClassFactoryImpl));
 213         lpclf->ref = 1;
 214         ICOM_VTBL(lpclf) = &clfvt;
 215         lpclf->rclsid = (CLSID*)rclsid;
 216
 217         TRACE("(%p)->()\n",lpclf);
 218         shell32_ObjCount++;
 219         return (LPCLASSFACTORY)lpclf;
 220 }
 221 /**************************************************************************
 222  *  IClassFactory_QueryInterface
 223  */
 224 static HRESULT WINAPI IClassFactory_fnQueryInterface(
 225   LPCLASSFACTORY iface, REFIID riid, LPVOID *ppvObj)
 226 {
 227         ICOM_THIS(IClassFactoryImpl,iface);
 228         TRACE("(%p)->(\n\tIID:\t%s)\n",This,debugstr_guid(riid));
 229
 230         *ppvObj = NULL;
 231
 232         if(IsEqualIID(riid, &IID_IUnknown))          /*IUnknown*/
 233         { *ppvObj = This;
 234         }
 235         else if(IsEqualIID(riid, &IID_IClassFactory))  /*IClassFactory*/
 236         { *ppvObj = (IClassFactory*)This;
 237         }
 238
 239         if(*ppvObj)
 240         { IUnknown_AddRef((LPUNKNOWN)*ppvObj);
 241           TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
 242           return S_OK;
 243         }
 244         TRACE("-- Interface: %s E_NOINTERFACE\n", debugstr_guid(riid));
 245         return E_NOINTERFACE;
 246 }
 247 /******************************************************************************
 248  * IClassFactory_AddRef
 249  */
 250 static ULONG WINAPI IClassFactory_fnAddRef(LPCLASSFACTORY iface)
 251 {
 252         ICOM_THIS(IClassFactoryImpl,iface);
 253         TRACE("(%p)->(count=%lu)\n",This,This->ref);
 254
 255         shell32_ObjCount++;
 256         return ++(This->ref);
 257 }
 258 /******************************************************************************
 259  * IClassFactory_Release
 260  */
 261 static ULONG WINAPI IClassFactory_fnRelease(LPCLASSFACTORY iface)
 262 {
 263         ICOM_THIS(IClassFactoryImpl,iface);
 264         TRACE("(%p)->(count=%lu)\n",This,This->ref);
 265
 266         shell32_ObjCount--;
 267         if (!--(This->ref))
 268         { TRACE("-- destroying IClassFactory(%p)\n",This);
 269                 HeapFree(GetProcessHeap(),0,This);
 270                 return 0;
 271         }
 272         return This->ref;
 273 }
 274 /******************************************************************************
 275  * IClassFactory_CreateInstance
 276  */
 277 static HRESULT WINAPI IClassFactory_fnCreateInstance(
 278   LPCLASSFACTORY iface, LPUNKNOWN pUnknown, REFIID riid, LPVOID *ppObject)
 279 {
 280         ICOM_THIS(IClassFactoryImpl,iface);
 281         IUnknown *pObj = NULL;
 282         HRESULT hres;
 283
 284         TRACE("%p->(%p,\n\tIID:\t%s,%p)\n",This,pUnknown,debugstr_guid(riid),ppObject);
 285
 286         *ppObject = NULL;
 287
 288         if(pUnknown)
 289         {
 290           return(CLASS_E_NOAGGREGATION);
 291         }
 292
 293         if (IsEqualCLSID(This->rclsid, &CLSID_ShellDesktop))
 294         {
 295           pObj = (IUnknown *)ISF_Desktop_Constructor();
 296         }
 297         else if (IsEqualCLSID(This->rclsid, &CLSID_ShellLink))
 298         {
 299           pObj = (IUnknown *)IShellLink_Constructor(FALSE);
 300         }
 301         else
 302         {
 303           ERR("unknown IID requested\n\tIID:\t%s\n",debugstr_guid(riid));
 304           return(E_NOINTERFACE);
 305         }
 306
 307         if (!pObj)
 308         {
 309           return(E_OUTOFMEMORY);
 310         }
 311
 312         hres = IUnknown_QueryInterface(pObj,riid, ppObject);
 313         IUnknown_Release(pObj);
 314
 315         TRACE("-- Object created: (%p)->%p\n",This,*ppObject);
 316
 317         return hres;
 318 }
 319 /******************************************************************************
 320  * IClassFactory_LockServer
 321  */
 322 static HRESULT WINAPI IClassFactory_fnLockServer(LPCLASSFACTORY iface, BOOL fLock)
 323 {
 324         ICOM_THIS(IClassFactoryImpl,iface);
 325         TRACE("%p->(0x%x), not implemented\n",This, fLock);
 326         return E_NOTIMPL;
 327 }
 328
 329 static ICOM_VTABLE(IClassFactory) clfvt =
 330 {
 331     ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 332     IClassFactory_fnQueryInterface,
 333     IClassFactory_fnAddRef,
 334   IClassFactory_fnRelease,
 335   IClassFactory_fnCreateInstance,
 336   IClassFactory_fnLockServer
 337 };
 338
 339 /**************************************************************************
 340  * Default ClassFactory Implementation
 341  *
 342  * SHCreateDefClassObject
 343  *
 344  * NOTES
 345  *  helper function for dll's without a own classfactory
 346  *  a generic classfactory is returned
 347  *  when the CreateInstance of the cf is called the callback is executed
 348  */
 349 typedef HRESULT (CALLBACK * LPFNCREATEINSTANCE)(IUnknown* pUnkOuter, REFIID riid, LPVOID* ppvObject);
 350
 351 typedef struct
 352 {
 353     ICOM_VFIELD(IClassFactory);
 354     DWORD                       ref;
 355     CLSID                       *rclsid;
 356     LPFNCREATEINSTANCE          lpfnCI;
 357     const IID *                 riidInst;
 358     UINT *                      pcRefDll; /* pointer to refcounter in external dll (ugrrr...) */
 359 } IDefClFImpl;
 360
 361 static ICOM_VTABLE(IClassFactory) dclfvt;
 362
 363 /**************************************************************************
 364  *  IDefClF_fnConstructor
 365  */
 366
 367 IClassFactory * IDefClF_fnConstructor(LPFNCREATEINSTANCE lpfnCI, UINT * pcRefDll, REFIID riidInst)
 368 {
 369         IDefClFImpl* lpclf;
 370
 371         lpclf = (IDefClFImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(IDefClFImpl));
 372         lpclf->ref = 1;
 373         ICOM_VTBL(lpclf) = &dclfvt;
 374         lpclf->lpfnCI = lpfnCI;
 375         lpclf->pcRefDll = pcRefDll;
 376
 377         if (pcRefDll)
 378           (*pcRefDll)++;
 379
 380         lpclf->riidInst = riidInst;
 381
 382         TRACE("(%p)\n\tIID:\t%s\n",lpclf, debugstr_guid(riidInst));
 383         shell32_ObjCount++;
 384         return (LPCLASSFACTORY)lpclf;
 385 }
 386 /**************************************************************************
 387  *  IDefClF_fnQueryInterface
 388  */
 389 static HRESULT WINAPI IDefClF_fnQueryInterface(
 390   LPCLASSFACTORY iface, REFIID riid, LPVOID *ppvObj)
 391 {
 392         ICOM_THIS(IDefClFImpl,iface);
 393
 394         TRACE("(%p)->(\n\tIID:\t%s)\n",This,debugstr_guid(riid));
 395
 396         *ppvObj = NULL;
 397
 398         if(IsEqualIID(riid, &IID_IUnknown))          /*IUnknown*/
 399         { *ppvObj = This;
 400         }
 401         else if(IsEqualIID(riid, &IID_IClassFactory))  /*IClassFactory*/
 402         { *ppvObj = (IClassFactory*)This;
 403         }
 404
 405         if(*ppvObj)
 406         { IUnknown_AddRef((LPUNKNOWN)*ppvObj);
 407           TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
 408           return S_OK;
 409         }
 410         TRACE("-- Interface: %s E_NOINTERFACE\n", debugstr_guid(riid));
 411         return E_NOINTERFACE;
 412 }
 413 /******************************************************************************
 414  * IDefClF_fnAddRef
 415  */
 416 static ULONG WINAPI IDefClF_fnAddRef(LPCLASSFACTORY iface)
 417 {
 418         ICOM_THIS(IDefClFImpl,iface);
 419         TRACE("(%p)->(count=%lu)\n",This,This->ref);
 420
 421         shell32_ObjCount++;
 422
 423         return ++(This->ref);
 424 }
 425 /******************************************************************************
 426  * IDefClF_fnRelease
 427  */
 428 static ULONG WINAPI IDefClF_fnRelease(LPCLASSFACTORY iface)
 429 {
 430         ICOM_THIS(IDefClFImpl,iface);
 431         TRACE("(%p)->(count=%lu)\n",This,This->ref);
 432
 433         shell32_ObjCount--;
 434
 435         if (!--(This->ref))
 436         {
 437           if (This->pcRefDll)
 438             (*This->pcRefDll)--;
 439
 440           TRACE("-- destroying IClassFactory(%p)\n",This);
 441           HeapFree(GetProcessHeap(),0,This);
 442           return 0;
 443         }
 444         return This->ref;
 445 }
 446 /******************************************************************************
 447  * IDefClF_fnCreateInstance
 448  */
 449 static HRESULT WINAPI IDefClF_fnCreateInstance(
 450   LPCLASSFACTORY iface, LPUNKNOWN pUnkOuter, REFIID riid, LPVOID *ppvObject)
 451 {
 452         ICOM_THIS(IDefClFImpl,iface);
 453
 454         TRACE("%p->(%p,\n\tIID:\t%s,%p)\n",This,pUnkOuter,debugstr_guid(riid),ppvObject);
 455
 456         *ppvObject = NULL;
 457
 458         if(pUnkOuter)
 459           return(CLASS_E_NOAGGREGATION);
 460
 461         if ( This->riidInst==NULL ||
 462              IsEqualCLSID(riid, This->riidInst) ||
 463              IsEqualCLSID(riid, &IID_IUnknown) )
 464         {
 465           return This->lpfnCI(pUnkOuter, riid, ppvObject);
 466         }
 467
 468         ERR("unknown IID requested\n\tIID:\t%s\n",debugstr_guid(riid));
 469         return E_NOINTERFACE;
 470 }
 471 /******************************************************************************
 472  * IDefClF_fnLockServer
 473  */
 474 static HRESULT WINAPI IDefClF_fnLockServer(LPCLASSFACTORY iface, BOOL fLock)
 475 {
 476         ICOM_THIS(IDefClFImpl,iface);
 477         TRACE("%p->(0x%x), not implemented\n",This, fLock);
 478         return E_NOTIMPL;
 479 }
 480
 481 static ICOM_VTABLE(IClassFactory) dclfvt =
 482 {
 483     ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 484     IDefClF_fnQueryInterface,
 485     IDefClF_fnAddRef,
 486   IDefClF_fnRelease,
 487   IDefClF_fnCreateInstance,
 488   IDefClF_fnLockServer
 489 };
 490
 491 /******************************************************************************
 492  * SHCreateDefClassObject                       [SHELL32.70]
 493  */
 494 HRESULT WINAPI SHCreateDefClassObject(
 495         REFIID  riid,
 496         LPVOID* ppv,
 497         LPFNCREATEINSTANCE lpfnCI,      /* create instance callback entry */
 498         UINT    *pcRefDll,              /* ref count of the dll */
 499         REFIID  riidInst)               /* optional interface to the instance */
 500 {
 501         TRACE("\n\tIID:\t%s %p %p %p \n\tIIDIns:\t%s\n",
 502               debugstr_guid(riid), ppv, lpfnCI, pcRefDll, debugstr_guid(riidInst));
 503
 504         if ( IsEqualCLSID(riid, &IID_IClassFactory) )
 505         {
 506           IClassFactory * pcf = IDefClF_fnConstructor(lpfnCI, pcRefDll, riidInst);
 507           if (pcf)
 508           {
 509             *ppv = pcf;
 510             return NOERROR;
 511           }
 512           return E_OUTOFMEMORY;
 513         }
 514         return E_NOINTERFACE;
 515 }
 516