reactos/dll/win32/shell32/shlfolder.cpp

   1 /*
   2  *    Shell Folder stuff
   3  *
   4  *    Copyright 1997            Marcus Meissner
   5  *    Copyright 1998, 1999, 2002    Juergen Schmied
   6  *
   7  *    IShellFolder2 and related interfaces
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include "precomp.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  27
  28 /***************************************************************************
  29  *  SHELL32_GetCustomFolderAttributeFromPath (internal function)
  30  *
  31  * Gets a value from the folder's desktop.ini file, if one exists.
  32  *
  33  * PARAMETERS
  34  *  pwszFolderPath[I] Folder containing the desktop.ini file.
  35  *  pwszHeading   [I] Heading in .ini file.
  36  *  pwszAttribute [I] Attribute in .ini file.
  37  *  pwszValue     [O] Buffer to store value into.
  38  *  cchValue      [I] Size in characters including NULL of buffer pointed to
  39  *                    by pwszValue.
  40  *
  41  *  RETURNS
  42  *    TRUE if returned non-NULL value.
  43  *    FALSE otherwise.
  44  */
  45 static BOOL __inline SHELL32_GetCustomFolderAttributeFromPath(
  46     LPWSTR pwszFolderPath, LPCWSTR pwszHeading, LPCWSTR pwszAttribute,
  47     LPWSTR pwszValue, DWORD cchValue)
  48 {
  49     static const WCHAR wszDesktopIni[] =
  50             {'d','e','s','k','t','o','p','.','i','n','i',0};
  51     static const WCHAR wszDefault[] = {0};
  52
  53     PathAddBackslashW(pwszFolderPath);
  54     PathAppendW(pwszFolderPath, wszDesktopIni);
  55     return GetPrivateProfileStringW(pwszHeading, pwszAttribute, wszDefault,
  56                                     pwszValue, cchValue, pwszFolderPath);
  57 }
  58
  59 /***************************************************************************
  60  *  GetNextElement (internal function)
  61  *
  62  * Gets a part of a string till the first backslash.
  63  *
  64  * PARAMETERS
  65  *  pszNext [IN] string to get the element from
  66  *  pszOut  [IN] pointer to buffer which receives string
  67  *  dwOut   [IN] length of pszOut
  68  *
  69  *  RETURNS
  70  *    LPSTR pointer to first, not yet parsed char
  71  */
  72
  73 LPCWSTR GetNextElementW (LPCWSTR pszNext, LPWSTR pszOut, DWORD dwOut)
  74 {
  75     LPCWSTR pszTail = pszNext;
  76     DWORD dwCopy;
  77
  78     TRACE ("(%s %p 0x%08x)\n", debugstr_w (pszNext), pszOut, dwOut);
  79
  80     *pszOut = 0x0000;
  81
  82     if (!pszNext || !*pszNext)
  83         return NULL;
  84
  85     while (*pszTail && (*pszTail != (WCHAR) '\\'))
  86         pszTail++;
  87
  88     dwCopy = pszTail - pszNext + 1;
  89     lstrcpynW (pszOut, pszNext, (dwOut < dwCopy) ? dwOut : dwCopy);
  90
  91     if (*pszTail)
  92         pszTail++;
  93     else
  94         pszTail = NULL;
  95
  96     TRACE ("--(%s %s 0x%08x %p)\n", debugstr_w (pszNext), debugstr_w (pszOut), dwOut, pszTail);
  97     return pszTail;
  98 }
  99
 100 HRESULT SHELL32_ParseNextElement (IShellFolder2 * psf, HWND hwndOwner, LPBC pbc,
 101                   LPITEMIDLIST * pidlInOut, LPOLESTR szNext, DWORD * pEaten, DWORD * pdwAttributes)
 102 {
 103     HRESULT hr = E_INVALIDARG;
 104     LPITEMIDLIST pidlIn = pidlInOut ? *pidlInOut : NULL;
 105     LPITEMIDLIST pidlOut = NULL;
 106     LPITEMIDLIST pidlTemp = NULL;
 107     CComPtr<IShellFolder> psfChild;
 108
 109     TRACE ("(%p, %p, %p, %s)\n", psf, pbc, pidlIn, debugstr_w (szNext));
 110
 111     /* get the shellfolder for the child pidl and let it analyse further */
 112     hr = psf->BindToObject(pidlIn, pbc, IID_PPV_ARG(IShellFolder, &psfChild));
 113     if (FAILED(hr))
 114         return hr;
 115
 116     hr = psfChild->ParseDisplayName(hwndOwner, pbc, szNext, pEaten, &pidlOut, pdwAttributes);
 117     if (FAILED(hr))
 118         return hr;
 119
 120     pidlTemp = ILCombine (pidlIn, pidlOut);
 121     if (!pidlTemp)
 122     {
 123         hr = E_OUTOFMEMORY;
 124         if (pidlOut)
 125             ILFree(pidlOut);
 126         return hr;
 127     }
 128
 129     if (pidlOut)
 130         ILFree (pidlOut);
 131
 132     if (pidlIn)
 133         ILFree (pidlIn);
 134
 135     *pidlInOut = pidlTemp;
 136
 137     TRACE ("-- pidl=%p ret=0x%08x\n", pidlInOut ? *pidlInOut : NULL, hr);
 138     return S_OK;
 139 }
 140
 141 /***********************************************************************
 142  *    SHELL32_CoCreateInitSF
 143  *
 144  * Creates a shell folder and initializes it with a pidl and a root folder
 145  * via IPersistFolder3 or IPersistFolder.
 146  *
 147  * NOTES
 148  *   pathRoot can be NULL for Folders being a drive.
 149  *   In this case the absolute path is built from pidlChild (eg. C:)
 150  */
 151 static HRESULT SHELL32_CoCreateInitSF (LPCITEMIDLIST pidlRoot, LPCWSTR pathRoot,
 152                 LPCITEMIDLIST pidlChild, REFCLSID clsid, IShellFolder** ppsfOut)
 153 {
 154     HRESULT hr;
 155     CComPtr<IShellFolder> pShellFolder;
 156
 157     TRACE ("%p %s %p\n", pidlRoot, debugstr_w(pathRoot), pidlChild);
 158
 159     hr = SHCoCreateInstance(NULL, &clsid, NULL, IID_PPV_ARG(IShellFolder, &pShellFolder));
 160     if (SUCCEEDED (hr))
 161     {
 162         LPITEMIDLIST pidlAbsolute = ILCombine (pidlRoot, pidlChild);
 163         CComPtr<IPersistFolder> ppf;
 164         CComPtr<IPersistFolder3> ppf3;
 165
 166         if (SUCCEEDED(pShellFolder->QueryInterface(IID_PPV_ARG(IPersistFolder3, &ppf3))))
 167         {
 168             PERSIST_FOLDER_TARGET_INFO ppfti;
 169
 170             ZeroMemory (&ppfti, sizeof (ppfti));
 171
 172             /* fill the PERSIST_FOLDER_TARGET_INFO */
 173             ppfti.dwAttributes = -1;
 174             ppfti.csidl = -1;
 175
 176             /* build path */
 177             if (pathRoot)
 178             {
 179                 lstrcpynW (ppfti.szTargetParsingName, pathRoot, MAX_PATH - 1);
 180                 PathAddBackslashW(ppfti.szTargetParsingName); /* FIXME: why have drives a backslash here ? */
 181             }
 182
 183             if (pidlChild)
 184             {
 185                 int len = wcslen(ppfti.szTargetParsingName);
 186
 187                 if (!_ILSimpleGetTextW(pidlChild, ppfti.szTargetParsingName + len, MAX_PATH - len))
 188                     hr = E_INVALIDARG;
 189             }
 190
 191             ppf3->InitializeEx(NULL, pidlAbsolute, &ppfti);
 192         }
 193         else if (SUCCEEDED((hr = pShellFolder->QueryInterface(IID_PPV_ARG(IPersistFolder, &ppf)))))
 194         {
 195             ppf->Initialize(pidlAbsolute);
 196         }
 197         ILFree (pidlAbsolute);
 198     }
 199
 200     *ppsfOut = pShellFolder.Detach();
 201
 202     TRACE ("-- (%p) ret=0x%08x\n", *ppsfOut, hr);
 203
 204     return hr;
 205 }
 206
 207 void SHELL32_GetCLSIDForDirectory(LPCWSTR pathRoot, LPCITEMIDLIST pidl, CLSID* pclsidFolder)
 208 {
 209     static const WCHAR wszDotShellClassInfo[] = {
 210         '.','S','h','e','l','l','C','l','a','s','s','I','n','f','o',0 };
 211     static const WCHAR wszCLSID[] = {'C','L','S','I','D',0};
 212     WCHAR wszCLSIDValue[CHARS_IN_GUID], wszFolderPath[MAX_PATH], *pwszPathTail = wszFolderPath;
 213
 214     /* see if folder CLSID should be overridden by desktop.ini file */
 215     if (pathRoot) {
 216         lstrcpynW(wszFolderPath, pathRoot, MAX_PATH);
 217         pwszPathTail = PathAddBackslashW(wszFolderPath);
 218     }
 219
 220     _ILSimpleGetTextW(pidl,pwszPathTail,MAX_PATH - (int)(pwszPathTail - wszFolderPath));
 221
 222     if (SHELL32_GetCustomFolderAttributeFromPath (wszFolderPath,
 223         wszDotShellClassInfo, wszCLSID, wszCLSIDValue, CHARS_IN_GUID))
 224         CLSIDFromString (wszCLSIDValue, pclsidFolder);
 225 }
 226
 227 /***********************************************************************
 228  *    SHELL32_BindToFS [Internal]
 229  *
 230  * Common code for IShellFolder_BindToObject.
 231  *
 232  * PARAMS
 233  *  pidlRoot     [I] The parent shell folder's absolute pidl.
 234  *  pathRoot     [I] Absolute dos path of the parent shell folder.
 235  *  pidlComplete [I] PIDL of the child. Relative to pidlRoot.
 236  *  riid         [I] GUID of the interface, which ppvOut shall be bound to.
 237  *  ppvOut       [O] A reference to the child's interface (riid).
 238  *
 239  * NOTES
 240  *  pidlComplete has to contain at least one non empty SHITEMID.
 241  *  This function makes special assumptions on the shell namespace, which
 242  *  means you probably can't use it for your IShellFolder implementation.
 243  */
 244 HRESULT SHELL32_BindToFS (LPCITEMIDLIST pidlRoot,
 245                              LPCWSTR pathRoot, LPCITEMIDLIST pidlComplete, REFIID riid, LPVOID * ppvOut)
 246 {
 247     CComPtr<IShellFolder> pSF;
 248     HRESULT hr;
 249     LPCITEMIDLIST pidlChild;
 250
 251     if (!pidlRoot || !ppvOut || !pidlComplete || !pidlComplete->mkid.cb)
 252         return E_INVALIDARG;
 253
 254     if (_ILIsValue(pidlComplete))
 255     {
 256         ERR("Binding to file is unimplemented\n");
 257         return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
 258     }
 259     if (!_ILIsFolder(pidlComplete) && !_ILIsDrive(pidlComplete))
 260     {
 261         ERR("Got an unknown type of pidl!\n");
 262         return E_FAIL;
 263     }
 264
 265     *ppvOut = NULL;
 266
 267     pidlChild = (_ILIsPidlSimple (pidlComplete)) ? pidlComplete : ILCloneFirst (pidlComplete);
 268
 269     CLSID clsidFolder = CLSID_ShellFSFolder;
 270     DWORD attributes = _ILGetFileAttributes(ILFindLastID(pidlChild), NULL, 0);
 271     if ((attributes & (FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_READONLY)) != 0)
 272         SHELL32_GetCLSIDForDirectory(pathRoot, pidlChild, &clsidFolder);
 273
 274     hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild, clsidFolder, &pSF);
 275
 276     if (pidlChild != pidlComplete)
 277         ILFree ((LPITEMIDLIST)pidlChild);
 278
 279     if (SUCCEEDED (hr)) {
 280         if (_ILIsPidlSimple (pidlComplete)) {
 281             /* no sub folders */
 282             hr = pSF->QueryInterface(riid, ppvOut);
 283         } else {
 284             /* go deeper */
 285             hr = pSF->BindToObject(ILGetNext (pidlComplete), NULL, riid, ppvOut);
 286         }
 287     }
 288
 289     TRACE ("-- returning (%p) %08x\n", *ppvOut, hr);
 290
 291     return hr;
 292 }
 293
 294 HRESULT SHELL32_BindToGuidItem(LPCITEMIDLIST pidlRoot,
 295                                PCUIDLIST_RELATIVE pidl,
 296                                LPBC pbcReserved,
 297                                REFIID riid,
 298                                LPVOID *ppvOut)
 299 {
 300     CComPtr<IPersistFolder> pFolder;
 301     HRESULT hr;
 302
 303     if (!pidlRoot || !ppvOut || !pidl || !pidl->mkid.cb)
 304         return E_INVALIDARG;
 305
 306     *ppvOut = NULL;
 307
 308     GUID *pGUID = _ILGetGUIDPointer(pidl);
 309     if (!pGUID)
 310     {
 311         ERR("SHELL32_BindToGuidItem called for non guid item!\n");
 312         return E_INVALIDARG;
 313     }
 314
 315     hr = SHCoCreateInstance(NULL, pGUID, NULL, IID_PPV_ARG(IPersistFolder, &pFolder));
 316     if (FAILED(hr))
 317         return hr;
 318
 319     if (_ILIsPidlSimple (pidl))
 320     {
 321         hr = pFolder->Initialize(ILCombine(pidlRoot, pidl));
 322         if (FAILED(hr))
 323             return hr;
 324
 325         return pFolder->QueryInterface(riid, ppvOut);
 326     }
 327     else
 328     {
 329         LPITEMIDLIST pidlChild = ILCloneFirst (pidl);
 330         if (!pidlChild)
 331             return E_OUTOFMEMORY;
 332
 333         hr = pFolder->Initialize(ILCombine(pidlRoot, pidlChild));
 334         ILFree(pidlChild);
 335         if (FAILED(hr))
 336             return hr;
 337
 338         CComPtr<IShellFolder> psf;
 339         hr = pFolder->QueryInterface(IID_PPV_ARG(IShellFolder, &psf));
 340         if (FAILED(hr))
 341             return hr;
 342
 343         return psf->BindToObject(ILGetNext (pidl), pbcReserved, riid, ppvOut);
 344     }
 345 }
 346
 347 /***********************************************************************
 348  *    SHELL32_GetDisplayNameOfChild
 349  *
 350  * Retrieves the display name of a child object of a shellfolder.
 351  *
 352  * For a pidl eg. [subpidl1][subpidl2][subpidl3]:
 353  * - it binds to the child shellfolder [subpidl1]
 354  * - asks it for the displayname of [subpidl2][subpidl3]
 355  *
 356  * Is possible the pidl is a simple pidl. In this case it asks the
 357  * subfolder for the displayname of an empty pidl. The subfolder
 358  * returns the own displayname eg. "::{guid}". This is used for
 359  * virtual folders with the registry key WantsFORPARSING set.
 360  */
 361 HRESULT SHELL32_GetDisplayNameOfChild (IShellFolder2 * psf,
 362                        LPCITEMIDLIST pidl, DWORD dwFlags, LPSTRRET strRet)
 363 {
 364     LPITEMIDLIST pidlFirst = ILCloneFirst(pidl);
 365     if (!pidlFirst)
 366         return E_OUTOFMEMORY;
 367
 368     CComPtr<IShellFolder> psfChild;
 369     HRESULT hr = psf->BindToObject(pidlFirst, NULL, IID_PPV_ARG(IShellFolder, &psfChild));
 370     if (SUCCEEDED (hr))
 371     {
 372         hr = psfChild->GetDisplayNameOf(ILGetNext (pidl), dwFlags, strRet);
 373     }
 374     ILFree (pidlFirst);
 375
 376     return hr;
 377 }
 378
 379 HRESULT HCR_GetClassName(REFIID riid, LPSTRRET strRet)
 380 {
 381     BOOL bRet;
 382     WCHAR wstrName[MAX_PATH+1];
 383     bRet = HCR_GetClassNameW(CLSID_MyDocuments, wstrName, MAX_PATH);
 384     if (!bRet)
 385         return E_FAIL;
 386
 387     return SHSetStrRet(strRet, wstrName);
 388 }
 389
 390 HRESULT SHELL32_GetDisplayNameOfGUIDItem(IShellFolder2* psf, LPCWSTR pszFolderPath, PCUITEMID_CHILD pidl, DWORD dwFlags, LPSTRRET strRet)
 391 {
 392     HRESULT hr;
 393     GUID const *clsid = _ILGetGUIDPointer (pidl);
 394
 395     if (!strRet)
 396         return E_INVALIDARG;
 397
 398     /* First of all check if we need to query the name from the child item */
 399     if (GET_SHGDN_FOR (dwFlags) == SHGDN_FORPARSING &&
 400         GET_SHGDN_RELATION (dwFlags) == SHGDN_NORMAL)
 401     {
 402         int bWantsForParsing;
 403
 404         /*
 405             * We can only get a filesystem path from a shellfolder if the
 406             *  value WantsFORPARSING in CLSID\\{...}\\shellfolder exists.
 407             *
 408             * Exception: The MyComputer folder doesn't have this key,
 409             *   but any other filesystem backed folder it needs it.
 410             */
 411         if (IsEqualIID (*clsid, CLSID_MyComputer))
 412         {
 413             bWantsForParsing = TRUE;
 414         }
 415         else
 416         {
 417             HKEY hkeyClass;
 418             if (HCR_RegOpenClassIDKey(*clsid, &hkeyClass))
 419             {
 420                 LONG res = SHGetValueW(hkeyClass, L"Shellfolder", L"WantsForParsing", NULL, NULL, NULL);
 421                 bWantsForParsing = (res == ERROR_SUCCESS);
 422                 RegCloseKey(hkeyClass);
 423             }
 424         }
 425
 426         if (bWantsForParsing)
 427         {
 428             /*
 429              * we need the filesystem path to the destination folder.
 430              * Only the folder itself can know it
 431              */
 432             return SHELL32_GetDisplayNameOfChild (psf, pidl, dwFlags, strRet);
 433         }
 434     }
 435
 436     /* Allocate the buffer for the result */
 437     LPWSTR pszPath = (LPWSTR)CoTaskMemAlloc((MAX_PATH + 1) * sizeof(WCHAR));
 438     if (!pszPath)
 439         return E_OUTOFMEMORY;
 440
 441     hr = S_OK;
 442
 443     if (GET_SHGDN_FOR (dwFlags) == SHGDN_FORPARSING)
 444     {
 445         wcscpy(pszPath, pszFolderPath);
 446         PWCHAR pItemName = &pszPath[wcslen(pszPath)];
 447
 448         /* parsing name like ::{...} */
 449         pItemName[0] = ':';
 450         pItemName[1] = ':';
 451         SHELL32_GUIDToStringW (*clsid, &pItemName[2]);
 452     }
 453     else
 454     {
 455         /* user friendly name */
 456         if (!HCR_GetClassNameW (*clsid, pszPath, MAX_PATH))
 457             hr = E_FAIL;
 458     }
 459
 460     if (SUCCEEDED(hr))
 461     {
 462         strRet->uType = STRRET_WSTR;
 463         strRet->pOleStr = pszPath;
 464     }
 465     else
 466     {
 467         CoTaskMemFree(pszPath);
 468     }
 469
 470     return hr;
 471 }
 472
 473 /***********************************************************************
 474  *  SHELL32_GetItemAttributes
 475  *
 476  * NOTES
 477  * Observed values:
 478  *  folder:    0xE0000177    FILESYSTEM | HASSUBFOLDER | FOLDER
 479  *  file:    0x40000177    FILESYSTEM
 480  *  drive:    0xf0000144    FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR
 481  *  mycomputer:    0xb0000154    HASSUBFOLDER | FOLDER | FILESYSANCESTOR
 482  *  (seems to be default for shell extensions if no registry entry exists)
 483  *
 484  * win2k:
 485  *  folder:    0xF0400177      FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER
 486  *  file:      0x40400177      FILESYSTEM | CANMONIKER
 487  *  drive      0xF0400154      FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER | CANRENAME (LABEL)
 488  *
 489  * According to the MSDN documentation this function should not set flags. It claims only to reset flags when necessary.
 490  * However it turns out the native shell32.dll _sets_ flags in several cases - so do we.
 491  */
 492
 493 static const DWORD dwSupportedAttr=
 494                       SFGAO_CANCOPY |           /*0x00000001 */
 495                       SFGAO_CANMOVE |           /*0x00000002 */
 496                       SFGAO_CANLINK |           /*0x00000004 */
 497                       SFGAO_CANRENAME |         /*0x00000010 */
 498                       SFGAO_CANDELETE |         /*0x00000020 */
 499                       SFGAO_HASPROPSHEET |      /*0x00000040 */
 500                       SFGAO_DROPTARGET |        /*0x00000100 */
 501                       SFGAO_LINK |              /*0x00010000 */
 502                       SFGAO_READONLY |          /*0x00040000 */
 503                       SFGAO_HIDDEN |            /*0x00080000 */
 504                       SFGAO_FILESYSANCESTOR |   /*0x10000000 */
 505                       SFGAO_FOLDER |            /*0x20000000 */
 506                       SFGAO_FILESYSTEM |        /*0x40000000 */
 507                       SFGAO_HASSUBFOLDER;       /*0x80000000 */
 508
 509 HRESULT SHELL32_GetGuidItemAttributes (IShellFolder * psf, LPCITEMIDLIST pidl, LPDWORD pdwAttributes)
 510 {
 511     if (!_ILIsSpecialFolder(pidl))
 512     {
 513         ERR("Got wrong type of pidl!\n");
 514         *pdwAttributes &= SFGAO_CANLINK;
 515         return S_OK;
 516     }
 517
 518     if (*pdwAttributes & ~dwSupportedAttr)
 519     {
 520         WARN ("attributes 0x%08x not implemented\n", (*pdwAttributes & ~dwSupportedAttr));
 521         *pdwAttributes &= dwSupportedAttr;
 522     }
 523
 524     /* First try to get them from the registry */
 525     if (HCR_GetFolderAttributes(pidl, pdwAttributes) && *pdwAttributes)
 526     {
 527         return S_OK;
 528     }
 529     else
 530     {
 531         /* If we can't get it from the registry we have to query the child */
 532         CComPtr<IShellFolder> psf2;
 533         if (SUCCEEDED(psf->BindToObject(pidl, 0, IID_PPV_ARG(IShellFolder, &psf2))))
 534         {
 535             return psf2->GetAttributesOf(0, NULL, pdwAttributes);
 536         }
 537     }
 538
 539     *pdwAttributes &= SFGAO_CANLINK;
 540     return S_OK;
 541 }
 542
 543 HRESULT SHELL32_GetFSItemAttributes(IShellFolder * psf, LPCITEMIDLIST pidl, LPDWORD pdwAttributes)
 544 {
 545     DWORD dwFileAttributes, dwShellAttributes;
 546
 547     if (!_ILIsFolder(pidl) && !_ILIsValue(pidl))
 548     {
 549         ERR("Got wrong type of pidl!\n");
 550         *pdwAttributes &= SFGAO_CANLINK;
 551         return S_OK;
 552     }
 553
 554     if (*pdwAttributes & ~dwSupportedAttr)
 555     {
 556         WARN ("attributes 0x%08x not implemented\n", (*pdwAttributes & ~dwSupportedAttr));
 557         *pdwAttributes &= dwSupportedAttr;
 558     }
 559
 560     dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
 561
 562     /* Set common attributes */
 563     dwShellAttributes = *pdwAttributes;
 564     dwShellAttributes |= SFGAO_FILESYSTEM | SFGAO_DROPTARGET | SFGAO_HASPROPSHEET | SFGAO_CANDELETE |
 565                          SFGAO_CANRENAME | SFGAO_CANLINK | SFGAO_CANMOVE | SFGAO_CANCOPY;
 566
 567     if (dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
 568     {
 569         dwShellAttributes |=  (SFGAO_FOLDER | SFGAO_HASSUBFOLDER | SFGAO_FILESYSANCESTOR);
 570     }
 571     else
 572         dwShellAttributes &= ~(SFGAO_FOLDER | SFGAO_HASSUBFOLDER | SFGAO_FILESYSANCESTOR);
 573
 574     if (dwFileAttributes & FILE_ATTRIBUTE_HIDDEN)
 575         dwShellAttributes |=  SFGAO_HIDDEN;
 576     else
 577         dwShellAttributes &= ~SFGAO_HIDDEN;
 578
 579     if (dwFileAttributes & FILE_ATTRIBUTE_READONLY)
 580         dwShellAttributes |=  SFGAO_READONLY;
 581     else
 582         dwShellAttributes &= ~SFGAO_READONLY;
 583
 584     if (SFGAO_LINK & *pdwAttributes)
 585     {
 586         char ext[MAX_PATH];
 587
 588         if (!_ILGetExtension(pidl, ext, MAX_PATH) || lstrcmpiA(ext, "lnk"))
 589         dwShellAttributes &= ~SFGAO_LINK;
 590     }
 591
 592     if (SFGAO_HASSUBFOLDER & *pdwAttributes)
 593     {
 594         CComPtr<IShellFolder> psf2;
 595         if (SUCCEEDED(psf->BindToObject(pidl, 0, IID_PPV_ARG(IShellFolder, &psf2))))
 596         {
 597             CComPtr<IEnumIDList> pEnumIL;
 598             if (SUCCEEDED(psf2->EnumObjects(0, SHCONTF_FOLDERS, &pEnumIL)))
 599             {
 600                 if (pEnumIL->Skip(1) != S_OK)
 601                     dwShellAttributes &= ~SFGAO_HASSUBFOLDER;
 602             }
 603         }
 604     }
 605
 606     *pdwAttributes &= dwShellAttributes;
 607
 608     TRACE ("-- 0x%08x\n", *pdwAttributes);
 609     return S_OK;
 610 }
 611
 612 /***********************************************************************
 613  *  SHELL32_CompareIDs
 614  */
 615 HRESULT SHELL32_CompareIDs(IShellFolder * iface, LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 616 {
 617     int type1,
 618         type2;
 619     char szTemp1[MAX_PATH];
 620     char szTemp2[MAX_PATH];
 621     HRESULT nReturn;
 622     LPITEMIDLIST firstpidl;
 623     LPITEMIDLIST nextpidl1;
 624     LPITEMIDLIST nextpidl2;
 625     CComPtr<IShellFolder> psf;
 626
 627     /* test for empty pidls */
 628     BOOL isEmpty1 = _ILIsDesktop(pidl1);
 629     BOOL isEmpty2 = _ILIsDesktop(pidl2);
 630
 631     if (isEmpty1 && isEmpty2)
 632         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, 0);
 633     if (isEmpty1)
 634         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD) -1);
 635     if (isEmpty2)
 636         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, 1);
 637
 638     /* test for different types. Sort order is the PT_* constant */
 639     type1 = _ILGetDataPointer(pidl1)->type;
 640     type2 = _ILGetDataPointer(pidl2)->type;
 641     if (type1 < type2)
 642         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD) -1);
 643     else if (type1 > type2)
 644         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, 1);
 645
 646     /* test for name of pidl */
 647     _ILSimpleGetText(pidl1, szTemp1, MAX_PATH);
 648     _ILSimpleGetText(pidl2, szTemp2, MAX_PATH);
 649     nReturn = lstrcmpiA(szTemp1, szTemp2);
 650     if (nReturn < 0)
 651         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD) -1);
 652     else if (nReturn > 0)
 653         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, 1);
 654
 655     /* test of complex pidls */
 656     firstpidl = ILCloneFirst(pidl1);
 657     nextpidl1 = ILGetNext(pidl1);
 658     nextpidl2 = ILGetNext(pidl2);
 659
 660     /* optimizing: test special cases and bind not deeper */
 661     /* the deeper shellfolder would do the same */
 662     isEmpty1 = _ILIsDesktop(nextpidl1);
 663     isEmpty2 = _ILIsDesktop(nextpidl2);
 664
 665     if (isEmpty1 && isEmpty2)
 666     {
 667         nReturn = MAKE_HRESULT( SEVERITY_SUCCESS, 0, 0 );
 668     }
 669     else if (isEmpty1)
 670     {
 671         nReturn = MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 672     }
 673     else if (isEmpty2)
 674     {
 675         nReturn = MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 676         /* optimizing end */
 677     }
 678     else if (SUCCEEDED(iface->BindToObject(firstpidl, NULL, IID_PPV_ARG(IShellFolder, &psf)))) {
 679         nReturn = psf->CompareIDs(lParam, nextpidl1, nextpidl2);
 680     }
 681     ILFree(firstpidl);
 682     return nReturn;
 683 }
 684
 685 HRESULT SH_ParseGuidDisplayName(IShellFolder2 * pFolder,
 686                                 HWND hwndOwner,
 687                                 LPBC pbc,
 688                                 LPOLESTR lpszDisplayName,
 689                                 DWORD *pchEaten,
 690                                 PIDLIST_RELATIVE *ppidl,
 691                                 DWORD *pdwAttributes)
 692 {
 693     LPITEMIDLIST pidl;
 694
 695     if (!lpszDisplayName || !ppidl)
 696         return E_INVALIDARG;
 697
 698     *ppidl = 0;
 699
 700     if (pchEaten)
 701         *pchEaten = 0;
 702
 703     UINT cch = wcslen(lpszDisplayName);
 704     if (cch < 39 || lpszDisplayName[0] != L':' || lpszDisplayName[1] != L':')
 705         return E_FAIL;
 706
 707     pidl = _ILCreateGuidFromStrW(lpszDisplayName + 2);
 708     if (pidl == NULL)
 709         return E_FAIL;
 710
 711     if (cch < 41)
 712     {
 713         *ppidl = pidl;
 714         if (pdwAttributes && *pdwAttributes)
 715         {
 716             SHELL32_GetGuidItemAttributes(pFolder, *ppidl, pdwAttributes);
 717         }
 718     }
 719     else
 720     {
 721         HRESULT hr = SHELL32_ParseNextElement(pFolder, hwndOwner, pbc, &pidl, lpszDisplayName + 41, pchEaten, pdwAttributes);
 722         if (SUCCEEDED(hr))
 723         {
 724             *ppidl = pidl;
 725         }
 726         return hr;
 727     }
 728
 729     return S_OK;
 730 }
 731
 732 HRESULT SHELL32_SetNameOfGuidItem(PCUITEMID_CHILD pidl, LPCOLESTR lpName, DWORD dwFlags, PITEMID_CHILD *pPidlOut)
 733 {
 734     GUID const *clsid = _ILGetGUIDPointer (pidl);
 735     LPOLESTR pStr;
 736     HRESULT hr;
 737     WCHAR szName[100];
 738
 739     if (!clsid)
 740     {
 741         ERR("Pidl is not reg item!\n");
 742         return E_FAIL;
 743     }
 744
 745     hr = StringFromCLSID(*clsid, &pStr);
 746     if (FAILED_UNEXPECTEDLY(hr))
 747         return hr;
 748
 749     swprintf(szName, L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\CLSID\\%s", pStr);
 750
 751     DWORD cbData = (wcslen(lpName) + 1) * sizeof(WCHAR);
 752     LONG res = SHSetValueW(HKEY_CURRENT_USER, szName, NULL, RRF_RT_REG_SZ, lpName, cbData);
 753
 754     CoTaskMemFree(pStr);
 755
 756     if (res == ERROR_SUCCESS)
 757     {
 758         *pPidlOut = ILClone(pidl);
 759         return S_OK;
 760     }
 761
 762     return E_FAIL;
 763 }
 764
 765 HRESULT SHELL32_GetDetailsOfGuidItem(IShellFolder2* psf, PCUITEMID_CHILD pidl, UINT iColumn, SHELLDETAILS *psd)
 766 {
 767     GUID const *clsid = _ILGetGUIDPointer (pidl);
 768
 769     if (!clsid)
 770     {
 771         ERR("Pidl is not reg item!\n");
 772         return E_FAIL;
 773     }
 774
 775     switch(iColumn)
 776     {
 777         case 0:        /* name */
 778             return psf->GetDisplayNameOf(pidl, SHGDN_NORMAL | SHGDN_INFOLDER, &psd->str);
 779         case 1:        /* comment */
 780             HKEY hKey;
 781             if (HCR_RegOpenClassIDKey(*clsid, &hKey))
 782             {
 783                 psd->str.cStr[0] = 0x00;
 784                 psd->str.uType = STRRET_CSTR;
 785                 RegLoadMUIStringA(hKey, "InfoTip", psd->str.cStr, MAX_PATH, NULL, 0, NULL);
 786                 RegCloseKey(hKey);
 787                 return S_OK;
 788             }
 789     }
 790     return E_FAIL;
 791 }
 792
 793 /***********************************************************************
 794  *  SHCreateLinks
 795  *
 796  *   Undocumented.
 797  */
 798 HRESULT WINAPI SHCreateLinks( HWND hWnd, LPCSTR lpszDir, IDataObject * lpDataObject,
 799                               UINT uFlags, LPITEMIDLIST *lppidlLinks)
 800 {
 801     FIXME("%p %s %p %08x %p\n", hWnd, lpszDir, lpDataObject, uFlags, lppidlLinks);
 802     return E_NOTIMPL;
 803 }
 804
 805 /***********************************************************************
 806  *  SHOpenFolderAndSelectItems
 807  *
 808  *   Unimplemented.
 809  */
 810 EXTERN_C HRESULT
 811 WINAPI
 812 SHOpenFolderAndSelectItems(LPITEMIDLIST pidlFolder,
 813                            UINT cidl,
 814                            PCUITEMID_CHILD_ARRAY apidl,
 815                            DWORD dwFlags)
 816 {
 817     FIXME("SHOpenFolderAndSelectItems() stub\n");
 818     return E_NOTIMPL;
 819 }