dlls/shell32/shlfolder.c

   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 <stdlib.h>
  25 #include <string.h>
  26 #include <stdarg.h>
  27 #include <stdio.h>
  28
  29 #define COBJMACROS
  30 #define NONAMELESSUNION
  31
  32 #include "winerror.h"
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "winreg.h"
  36 #include "wingdi.h"
  37 #include "winuser.h"
  38
  39 #include "ole2.h"
  40 #include "shlguid.h"
  41
  42 #include "pidl.h"
  43 #include "undocshell.h"
  44 #include "shell32_main.h"
  45 #include "shlwapi.h"
  46 #include "wine/debug.h"
  47 #include "shfldr.h"
  48
  49 WINE_DEFAULT_DEBUG_CHANNEL (shell);
  50
  51 /***************************************************************************
  52  *  SHELL32_GetCustomFolderAttribute (internal function)
  53  *
  54  * Gets a value from the folder's desktop.ini file, if one exists.
  55  *
  56  * PARAMETERS
  57  *  pidl          [I] Folder containing the desktop.ini file.
  58  *  pwszHeading   [I] Heading in .ini file.
  59  *  pwszAttribute [I] Attribute in .ini file.
  60  *  pwszValue     [O] Buffer to store value into.
  61  *  cchValue      [I] Size in characters including NULL of buffer pointed to
  62  *                    by pwszValue.
  63  *
  64  *  RETURNS
  65  *    TRUE if returned non-NULL value.
  66  *    FALSE otherwise.
  67  */
  68 static inline BOOL SHELL32_GetCustomFolderAttributeFromPath(
  69     LPWSTR pwszFolderPath, LPCWSTR pwszHeading, LPCWSTR pwszAttribute,
  70     LPWSTR pwszValue, DWORD cchValue)
  71 {
  72     PathAddBackslashW(pwszFolderPath);
  73     PathAppendW(pwszFolderPath, L"desktop.ini");
  74     return GetPrivateProfileStringW(pwszHeading, pwszAttribute, L"", pwszValue, cchValue, pwszFolderPath);
  75 }
  76
  77 BOOL SHELL32_GetCustomFolderAttribute(
  78     LPCITEMIDLIST pidl, LPCWSTR pwszHeading, LPCWSTR pwszAttribute,
  79     LPWSTR pwszValue, DWORD cchValue)
  80 {
  81     DWORD dwAttrib = FILE_ATTRIBUTE_SYSTEM;
  82     WCHAR wszFolderPath[MAX_PATH];
  83
  84     /* Hack around not having system attribute on non-Windows file systems */
  85     if (0)
  86         dwAttrib = _ILGetFileAttributes(pidl, NULL, 0);
  87
  88     if (dwAttrib & FILE_ATTRIBUTE_SYSTEM)
  89     {
  90         if (!SHGetPathFromIDListW(pidl, wszFolderPath))
  91             return FALSE;
  92
  93         return SHELL32_GetCustomFolderAttributeFromPath(wszFolderPath, pwszHeading,
  94                                                 pwszAttribute, pwszValue, cchValue);
  95     }
  96     return FALSE;
  97 }
  98
  99 /***************************************************************************
 100  *  GetNextElement (internal function)
 101  *
 102  * Gets a part of a string till the first backslash.
 103  *
 104  * PARAMETERS
 105  *  pszNext [IN] string to get the element from
 106  *  pszOut  [IN] pointer to buffer which receives string
 107  *  dwOut   [IN] length of pszOut
 108  *
 109  *  RETURNS
 110  *    LPSTR pointer to first, not yet parsed char
 111  */
 112
 113 LPCWSTR GetNextElementW (LPCWSTR pszNext, LPWSTR pszOut, DWORD dwOut)
 114 {
 115     LPCWSTR pszTail = pszNext;
 116     DWORD dwCopy;
 117
 118     TRACE ("(%s %p 0x%08x)\n", debugstr_w(pszNext), pszOut, dwOut);
 119
 120     *pszOut = 0;
 121
 122     if (!pszNext || !*pszNext)
 123         return NULL;
 124
 125     while (*pszTail && (*pszTail != (WCHAR) '\\'))
 126         pszTail++;
 127
 128     dwCopy = pszTail - pszNext + 1;
 129     lstrcpynW (pszOut, pszNext, (dwOut < dwCopy) ? dwOut : dwCopy);
 130
 131     if (*pszTail)
 132         pszTail++;
 133     else
 134         pszTail = NULL;
 135
 136     TRACE ("--(%s %s 0x%08x %p)\n", debugstr_w (pszNext), debugstr_w (pszOut), dwOut, pszTail);
 137     return pszTail;
 138 }
 139
 140 HRESULT SHELL32_ParseNextElement (IShellFolder2 * psf, HWND hwndOwner, LPBC pbc,
 141                                   LPITEMIDLIST * pidlInOut, LPOLESTR szNext, DWORD * pEaten, DWORD * pdwAttributes)
 142 {
 143     LPITEMIDLIST pidlOut = NULL, pidlTemp = NULL;
 144     IShellFolder *psfChild;
 145     HRESULT hr;
 146
 147     TRACE ("(%p, %p, %p, %s)\n", psf, pbc, pidlInOut ? *pidlInOut : NULL, debugstr_w (szNext));
 148
 149     /* get the shellfolder for the child pidl and let it analyse further */
 150     hr = IShellFolder2_BindToObject (psf, *pidlInOut, pbc, &IID_IShellFolder, (LPVOID *) & psfChild);
 151
 152     if (SUCCEEDED(hr)) {
 153         hr = IShellFolder_ParseDisplayName (psfChild, hwndOwner, pbc, szNext, pEaten, &pidlOut, pdwAttributes);
 154         IShellFolder_Release (psfChild);
 155
 156         if (SUCCEEDED(hr)) {
 157             pidlTemp = ILCombine (*pidlInOut, pidlOut);
 158
 159             if (!pidlTemp)
 160                 hr = E_OUTOFMEMORY;
 161         }
 162
 163         if (pidlOut)
 164             ILFree (pidlOut);
 165     }
 166
 167     ILFree (*pidlInOut);
 168     *pidlInOut = pidlTemp;
 169
 170     TRACE ("-- pidl=%p ret=0x%08x\n", pidlInOut ? *pidlInOut : NULL, hr);
 171     return hr;
 172 }
 173
 174 /***********************************************************************
 175  *      SHELL32_CoCreateInitSF
 176  *
 177  * Creates a shell folder and initializes it with a pidl and a root folder
 178  * via IPersistFolder3 or IPersistFolder.
 179  *
 180  * NOTES
 181  *   pathRoot can be NULL for Folders being a drive.
 182  *   In this case the absolute path is built from pidlChild (eg. C:)
 183  */
 184 static HRESULT SHELL32_CoCreateInitSF (LPCITEMIDLIST pidlRoot, LPCWSTR pathRoot,
 185                 LPCITEMIDLIST pidlChild, REFCLSID clsid, LPVOID * ppvOut)
 186 {
 187     HRESULT hr;
 188
 189     TRACE ("(%p %s %p %s %p)\n", pidlRoot, debugstr_w(pathRoot), pidlChild, debugstr_guid(clsid), ppvOut);
 190
 191     hr = SHCoCreateInstance(NULL, clsid, NULL, &IID_IShellFolder, ppvOut);
 192     if (SUCCEEDED (hr))
 193     {
 194         LPITEMIDLIST pidlAbsolute = ILCombine (pidlRoot, pidlChild);
 195         IPersistFolder *pPF;
 196         IPersistFolder3 *ppf;
 197
 198         if (_ILIsFolder(pidlChild) &&
 199             SUCCEEDED (IUnknown_QueryInterface ((IUnknown *) * ppvOut, &IID_IPersistFolder3, (LPVOID *) & ppf)))
 200         {
 201             PERSIST_FOLDER_TARGET_INFO ppfti;
 202
 203             ZeroMemory (&ppfti, sizeof (ppfti));
 204
 205             /* fill the PERSIST_FOLDER_TARGET_INFO */
 206             ppfti.dwAttributes = -1;
 207             ppfti.csidl = -1;
 208
 209             /* build path */
 210             if (pathRoot) {
 211                 lstrcpynW (ppfti.szTargetParsingName, pathRoot, MAX_PATH - 1);
 212                 PathAddBackslashW(ppfti.szTargetParsingName); /* FIXME: why have drives a backslash here ? */
 213             }
 214
 215             if (pidlChild) {
 216                 int len = lstrlenW(ppfti.szTargetParsingName);
 217
 218                 if (!_ILSimpleGetTextW(pidlChild, ppfti.szTargetParsingName + len, MAX_PATH - len))
 219                         hr = E_INVALIDARG;
 220             }
 221
 222             IPersistFolder3_InitializeEx (ppf, NULL, pidlAbsolute, &ppfti);
 223             IPersistFolder3_Release (ppf);
 224         }
 225         else if (SUCCEEDED ((hr = IUnknown_QueryInterface ((IUnknown *) * ppvOut, &IID_IPersistFolder, (LPVOID *) & pPF)))) {
 226             IPersistFolder_Initialize (pPF, pidlAbsolute);
 227             IPersistFolder_Release (pPF);
 228         }
 229         ILFree (pidlAbsolute);
 230     }
 231     TRACE ("-- (%p) ret=0x%08x\n", *ppvOut, hr);
 232     return hr;
 233 }
 234
 235 /***********************************************************************
 236  *      SHELL32_BindToChild [Internal]
 237  *
 238  * Common code for IShellFolder_BindToObject.
 239  *
 240  * PARAMS
 241  *  pidlRoot     [I] The parent shell folder's absolute pidl.
 242  *  pathRoot     [I] Absolute dos path of the parent shell folder.
 243  *  pidlComplete [I] PIDL of the child. Relative to pidlRoot.
 244  *  riid         [I] GUID of the interface, which ppvOut shall be bound to.
 245  *  ppvOut       [O] A reference to the child's interface (riid).
 246  *
 247  * NOTES
 248  *  pidlComplete has to contain at least one non empty SHITEMID.
 249  *  This function makes special assumptions on the shell namespace, which
 250  *  means you probably can't use it for your IShellFolder implementation.
 251  */
 252 HRESULT SHELL32_BindToChild (LPCITEMIDLIST pidlRoot, const CLSID *clsidChild,
 253                              LPCWSTR pathRoot, LPCITEMIDLIST pidlComplete, REFIID riid, LPVOID * ppvOut)
 254 {
 255     GUID const *clsid;
 256     IShellFolder *pSF;
 257     HRESULT hr;
 258     LPITEMIDLIST pidlChild;
 259
 260     TRACE("(%p %s %p %s %p)\n", pidlRoot, debugstr_w(pathRoot), pidlComplete, debugstr_guid(riid), ppvOut);
 261
 262     if (!pidlRoot || !ppvOut || _ILIsEmpty(pidlComplete))
 263         return E_INVALIDARG;
 264
 265     *ppvOut = NULL;
 266
 267     pidlChild = ILCloneFirst (pidlComplete);
 268
 269     if ((clsid = _ILGetGUIDPointer (pidlChild))) {
 270         /* virtual folder */
 271         hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild, clsid, (LPVOID *)&pSF);
 272     } else if (_ILIsValue(pidlChild)) {
 273         /* Don't bind to files */
 274         hr = HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
 275     } else {
 276         /* file system folder */
 277         CLSID clsidFolder = *clsidChild;
 278         WCHAR wszCLSIDValue[CHARS_IN_GUID], wszFolderPath[MAX_PATH], *pwszPathTail = wszFolderPath;
 279
 280         /* see if folder CLSID should be overridden by desktop.ini file */
 281         if (pathRoot) {
 282             lstrcpynW(wszFolderPath, pathRoot, MAX_PATH);
 283             pwszPathTail = PathAddBackslashW(wszFolderPath);
 284         }
 285
 286         _ILSimpleGetTextW(pidlChild,pwszPathTail,MAX_PATH - (int)(pwszPathTail - wszFolderPath));
 287
 288         if (SHELL32_GetCustomFolderAttributeFromPath (wszFolderPath,
 289             L".ShellClassInfo", L"CLSID", wszCLSIDValue, CHARS_IN_GUID))
 290             CLSIDFromString (wszCLSIDValue, &clsidFolder);
 291
 292         hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild,
 293                                      &clsidFolder, (LPVOID *)&pSF);
 294     }
 295     ILFree (pidlChild);
 296
 297     if (SUCCEEDED (hr)) {
 298         if (_ILIsPidlSimple (pidlComplete)) {
 299             /* no sub folders */
 300             hr = IShellFolder_QueryInterface (pSF, riid, ppvOut);
 301         } else {
 302             /* go deeper */
 303             hr = IShellFolder_BindToObject (pSF, ILGetNext (pidlComplete), NULL, riid, ppvOut);
 304         }
 305         IShellFolder_Release (pSF);
 306     }
 307
 308     TRACE ("-- returning (%p) 0x%08x\n", *ppvOut, hr);
 309
 310     return hr;
 311 }
 312
 313 /***********************************************************************
 314  *      SHELL32_GetDisplayNameOfChild
 315  *
 316  * Retrieves the display name of a child object of a shellfolder.
 317  *
 318  * For a pidl eg. [subpidl1][subpidl2][subpidl3]:
 319  * - it binds to the child shellfolder [subpidl1]
 320  * - asks it for the displayname of [subpidl2][subpidl3]
 321  *
 322  * Is possible the pidl is a simple pidl. In this case it asks the
 323  * subfolder for the displayname of an empty pidl. The subfolder
 324  * returns the own displayname eg. "::{guid}". This is used for
 325  * virtual folders with the registry key WantsFORPARSING set.
 326  */
 327 HRESULT SHELL32_GetDisplayNameOfChild (IShellFolder2 * psf,
 328                                        LPCITEMIDLIST pidl, DWORD dwFlags, LPWSTR szOut, DWORD dwOutLen)
 329 {
 330     LPITEMIDLIST pidlFirst;
 331     HRESULT hr;
 332
 333     TRACE ("(%p)->(pidl=%p 0x%08x %p 0x%08x)\n", psf, pidl, dwFlags, szOut, dwOutLen);
 334     pdump (pidl);
 335
 336     pidlFirst = ILCloneFirst (pidl);
 337     if (pidlFirst) {
 338         IShellFolder2 *psfChild;
 339
 340         hr = IShellFolder2_BindToObject (psf, pidlFirst, NULL, &IID_IShellFolder, (LPVOID *) & psfChild);
 341         if (SUCCEEDED (hr)) {
 342             STRRET strTemp;
 343             LPITEMIDLIST pidlNext = ILGetNext (pidl);
 344
 345             hr = IShellFolder2_GetDisplayNameOf (psfChild, pidlNext, dwFlags, &strTemp);
 346             if (SUCCEEDED (hr)) {
 347                 if(!StrRetToStrNW (szOut, dwOutLen, &strTemp, pidlNext))
 348                     hr = E_FAIL;
 349             }
 350             IShellFolder2_Release (psfChild);
 351         }
 352         ILFree (pidlFirst);
 353     } else
 354         hr = E_OUTOFMEMORY;
 355
 356     TRACE ("-- ret=0x%08x %s\n", hr, debugstr_w(szOut));
 357
 358     return hr;
 359 }
 360
 361 /***********************************************************************
 362  *  SHELL32_GetItemAttributes
 363  *
 364  * NOTES
 365  * Observed values:
 366  *  folder:     0xE0000177      FILESYSTEM | HASSUBFOLDER | FOLDER
 367  *  file:       0x40000177      FILESYSTEM
 368  *  drive:      0xf0000144      FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR
 369  *  mycomputer: 0xb0000154      HASSUBFOLDER | FOLDER | FILESYSANCESTOR
 370  *  (seems to be default for shell extensions if no registry entry exists)
 371  *
 372  * win2k:
 373  *  folder:    0xF0400177      FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER
 374  *  file:      0x40400177      FILESYSTEM | CANMONIKER
 375  *  drive      0xF0400154      FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER | CANRENAME (LABEL)
 376  *
 377  * According to the MSDN documentation this function should not set flags. It claims only to reset flags when necessary.
 378  * However it turns out the native shell32.dll _sets_ flags in several cases - so do we.
 379  */
 380 HRESULT SHELL32_GetItemAttributes (IShellFolder2 *psf, LPCITEMIDLIST pidl, LPDWORD pdwAttributes)
 381 {
 382     DWORD dwAttributes;
 383     BOOL has_guid;
 384     static const DWORD dwSupportedAttr=
 385                           SFGAO_CANCOPY |           /*0x00000001 */
 386                           SFGAO_CANMOVE |           /*0x00000002 */
 387                           SFGAO_CANLINK |           /*0x00000004 */
 388                           SFGAO_CANRENAME |         /*0x00000010 */
 389                           SFGAO_CANDELETE |         /*0x00000020 */
 390                           SFGAO_HASPROPSHEET |      /*0x00000040 */
 391                           SFGAO_DROPTARGET |        /*0x00000100 */
 392                           SFGAO_LINK |              /*0x00010000 */
 393                           SFGAO_READONLY |          /*0x00040000 */
 394                           SFGAO_HIDDEN |            /*0x00080000 */
 395                           SFGAO_FILESYSANCESTOR |   /*0x10000000 */
 396                           SFGAO_FOLDER |            /*0x20000000 */
 397                           SFGAO_FILESYSTEM |        /*0x40000000 */
 398                           SFGAO_HASSUBFOLDER;       /*0x80000000 */
 399
 400     TRACE ("0x%08x\n", *pdwAttributes);
 401
 402     if (*pdwAttributes & ~dwSupportedAttr)
 403     {
 404         WARN ("attributes 0x%08x not implemented\n", (*pdwAttributes & ~dwSupportedAttr));
 405         *pdwAttributes &= dwSupportedAttr;
 406     }
 407
 408     has_guid = _ILGetGUIDPointer(pidl) != NULL;
 409
 410     dwAttributes = *pdwAttributes;
 411
 412     if (_ILIsDrive (pidl)) {
 413         *pdwAttributes &= SFGAO_HASSUBFOLDER|SFGAO_FILESYSTEM|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR|
 414             SFGAO_DROPTARGET|SFGAO_HASPROPSHEET|SFGAO_CANLINK;
 415     } else if (has_guid && HCR_GetFolderAttributes(pidl, &dwAttributes)) {
 416         *pdwAttributes = dwAttributes;
 417     } else if (_ILGetDataPointer (pidl)) {
 418         DWORD file_attr = _ILGetFileAttributes (pidl, NULL, 0);
 419
 420         if (!file_attr) {
 421             WCHAR path[MAX_PATH];
 422             STRRET strret;
 423
 424             /* File attributes are not present in the internal PIDL structure, so get them from the file system. */
 425
 426             HRESULT hr = IShellFolder2_GetDisplayNameOf(psf, pidl, SHGDN_FORPARSING, &strret);
 427             if (SUCCEEDED(hr)) {
 428                 hr = StrRetToBufW(&strret, pidl, path, MAX_PATH);
 429
 430                 /* call GetFileAttributes() only for file system paths, not for parsing names like "::{...}" */
 431                 if (SUCCEEDED(hr) && path[0]!=':')
 432                     file_attr = GetFileAttributesW(path);
 433             }
 434         }
 435
 436         /* Set common attributes */
 437         *pdwAttributes |= SFGAO_FILESYSTEM | SFGAO_DROPTARGET | SFGAO_HASPROPSHEET | SFGAO_CANDELETE |
 438                           SFGAO_CANRENAME | SFGAO_CANLINK | SFGAO_CANMOVE | SFGAO_CANCOPY;
 439
 440         if (file_attr & FILE_ATTRIBUTE_DIRECTORY)
 441             *pdwAttributes |=  (SFGAO_FOLDER | SFGAO_HASSUBFOLDER | SFGAO_FILESYSANCESTOR | SFGAO_STORAGEANCESTOR | SFGAO_STORAGE);
 442         else
 443         {
 444             *pdwAttributes &= ~(SFGAO_FOLDER | SFGAO_HASSUBFOLDER | SFGAO_FILESYSANCESTOR | SFGAO_STORAGEANCESTOR | SFGAO_STORAGE);
 445             *pdwAttributes |= SFGAO_STREAM;
 446         }
 447
 448         if (file_attr & FILE_ATTRIBUTE_HIDDEN)
 449             *pdwAttributes |=  SFGAO_HIDDEN;
 450         else
 451             *pdwAttributes &= ~SFGAO_HIDDEN;
 452
 453         if (file_attr & FILE_ATTRIBUTE_READONLY)
 454             *pdwAttributes |=  SFGAO_READONLY;
 455         else
 456             *pdwAttributes &= ~SFGAO_READONLY;
 457
 458         if (SFGAO_LINK & *pdwAttributes) {
 459             char ext[MAX_PATH];
 460
 461             if (!_ILGetExtension(pidl, ext, MAX_PATH) || lstrcmpiA(ext, "lnk"))
 462                 *pdwAttributes &= ~SFGAO_LINK;
 463         }
 464     } else {
 465         *pdwAttributes &= SFGAO_HASSUBFOLDER|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR|SFGAO_DROPTARGET|SFGAO_HASPROPSHEET|SFGAO_CANRENAME|SFGAO_CANLINK;
 466     }
 467     TRACE ("-- 0x%08x\n", *pdwAttributes);
 468     return S_OK;
 469 }
 470
 471 /***********************************************************************
 472  *  SHELL32_CompareIDs
 473  */
 474 HRESULT SHELL32_CompareIDs(IShellFolder2 *sf, LPARAM lParam, LPCITEMIDLIST pidl1,
 475         LPCITEMIDLIST pidl2)
 476 {
 477     int type1, type2;
 478     char szTemp1[MAX_PATH];
 479     char szTemp2[MAX_PATH];
 480     HRESULT nReturn;
 481     LPITEMIDLIST firstpidl, nextpidl1, nextpidl2;
 482     IShellFolder *psf;
 483
 484     /* test for empty pidls */
 485     BOOL isEmpty1 = _ILIsDesktop (pidl1);
 486     BOOL isEmpty2 = _ILIsDesktop (pidl2);
 487
 488     if (isEmpty1 && isEmpty2)
 489         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 0 );
 490     if (isEmpty1)
 491         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 492     if (isEmpty2)
 493         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 494
 495     /* test for different types. Sort order is the PT_* constant */
 496     type1 = _ILGetDataPointer (pidl1)->type;
 497     type2 = _ILGetDataPointer (pidl2)->type;
 498     if (type1 < type2)
 499         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 500     else if (type1 > type2)
 501         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 502
 503     /* test for name of pidl */
 504     _ILSimpleGetText (pidl1, szTemp1, MAX_PATH);
 505     _ILSimpleGetText (pidl2, szTemp2, MAX_PATH);
 506     nReturn = lstrcmpiA (szTemp1, szTemp2);
 507     if (nReturn < 0)
 508         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 509     else if (nReturn > 0)
 510         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 511
 512     /* test of complex pidls */
 513     firstpidl = ILCloneFirst (pidl1);
 514     nextpidl1 = ILGetNext (pidl1);
 515     nextpidl2 = ILGetNext (pidl2);
 516
 517     /* optimizing: test special cases and bind not deeper */
 518     /* the deeper shellfolder would do the same */
 519     isEmpty1 = _ILIsDesktop (nextpidl1);
 520     isEmpty2 = _ILIsDesktop (nextpidl2);
 521
 522     if (isEmpty1 && isEmpty2) {
 523         nReturn = MAKE_HRESULT( SEVERITY_SUCCESS, 0, 0 );
 524     } else if (isEmpty1) {
 525         nReturn = MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 526     } else if (isEmpty2) {
 527         nReturn = MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 528     /* optimizing end */
 529     } else if (SUCCEEDED(IShellFolder2_BindToObject(sf, firstpidl, NULL, &IID_IShellFolder, (void **)&psf))) {
 530         nReturn = IShellFolder_CompareIDs (psf, lParam, nextpidl1, nextpidl2);
 531         IShellFolder_Release (psf);
 532     }
 533     ILFree (firstpidl);
 534     return nReturn;
 535 }
 536
 537 HRESULT SHELL32_GetColumnDetails(const shvheader *data, int column, SHELLDETAILS *details)
 538 {
 539     details->fmt = data[column].fmt;
 540     details->cxChar = data[column].cxChar;
 541
 542     if (SHELL_OsIsUnicode())
 543     {
 544         details->str.u.pOleStr = CoTaskMemAlloc(MAX_PATH * sizeof(WCHAR));
 545         if (!details->str.u.pOleStr) return E_OUTOFMEMORY;
 546
 547         details->str.uType = STRRET_WSTR;
 548         LoadStringW(shell32_hInstance, data[column].colnameid, details->str.u.pOleStr, MAX_PATH);
 549     }
 550     else
 551     {
 552         details->str.uType = STRRET_CSTR;
 553         LoadStringA(shell32_hInstance, data[column].colnameid, details->str.u.cStr, MAX_PATH);
 554     }
 555
 556     return S_OK;
 557 }
 558
 559 HRESULT shellfolder_map_column_to_scid(const shvheader *header, UINT column, SHCOLUMNID *scid)
 560 {
 561     if (header[column].fmtid == NULL)
 562     {
 563         FIXME("missing property id for column %u.\n", column);
 564         memset(scid, 0, sizeof(*scid));
 565         return E_NOTIMPL;
 566     }
 567
 568     scid->fmtid = *header[column].fmtid;
 569     scid->pid = header[column].pid;
 570
 571     return S_OK;
 572 }
 573
 574 HRESULT shellfolder_get_file_details(IShellFolder2 *iface, LPCITEMIDLIST pidl, const shvheader *header,
 575                                      int column, SHELLDETAILS *psd)
 576 {
 577     psd->str.uType = STRRET_CSTR;
 578     switch (header[column].pid)
 579     {
 580     case PID_STG_NAME:
 581         return IShellFolder2_GetDisplayNameOf( iface, pidl, SHGDN_NORMAL | SHGDN_INFOLDER, &psd->str );
 582     case PID_STG_SIZE:
 583         _ILGetFileSize( pidl, psd->str.u.cStr, MAX_PATH );
 584         break;
 585     case PID_STG_STORAGETYPE:
 586         _ILGetFileType( pidl, psd->str.u.cStr, MAX_PATH );
 587         break;
 588     case PID_STG_WRITETIME:
 589         _ILGetFileDate( pidl, psd->str.u.cStr, MAX_PATH );
 590         break;
 591     case PID_STG_ATTRIBUTES:
 592         _ILGetFileAttributes( pidl, psd->str.u.cStr, MAX_PATH );
 593         break;
 594     }
 595     return S_OK;
 596 }
 597
 598 /***********************************************************************
 599  *  SHCreateLinks
 600  *
 601  *   Undocumented.
 602  */
 603 HRESULT WINAPI SHCreateLinks( HWND hWnd, LPCSTR lpszDir, LPDATAOBJECT lpDataObject,
 604                               UINT uFlags, LPITEMIDLIST *lppidlLinks)
 605 {
 606     FIXME("%p %s %p %08x %p\n",hWnd,lpszDir,lpDataObject,uFlags,lppidlLinks);
 607     return E_NOTIMPL;
 608 }
 609
 610 /***********************************************************************
 611  *  SHOpenFolderAndSelectItems
 612  *
 613  *   Added in XP.
 614  */
 615 HRESULT WINAPI SHOpenFolderAndSelectItems( PCIDLIST_ABSOLUTE pidlFolder, UINT cidl,
 616                               PCUITEMID_CHILD_ARRAY *apidl, DWORD flags )
 617 {
 618     FIXME("%p %u %p 0x%x: stub\n", pidlFolder, cidl, apidl, flags);
 619     return E_NOTIMPL;
 620 }
 621
 622 /***********************************************************************
 623  *  SHGetSetFolderCustomSettings (SHELL32.709)
 624  *
 625  *   Only Unicode above Server 2003, writes/reads from a Desktop.ini
 626  */
 627 HRESULT WINAPI SHGetSetFolderCustomSettings( LPSHFOLDERCUSTOMSETTINGS fcs, PCWSTR path, DWORD flag )
 628 {
 629     WCHAR bufferW[MAX_PATH];
 630     HRESULT hr;
 631
 632     hr = E_FAIL;
 633     bufferW[0] = 0;
 634
 635     if (!fcs || !path)
 636         return hr;
 637
 638     if (flag & FCS_FORCEWRITE)
 639     {
 640         if (fcs->dwMask & FCSM_ICONFILE)
 641         {
 642             lstrcpyW(bufferW, path);
 643             PathAddBackslashW(bufferW);
 644             lstrcatW(bufferW, L"desktop.ini");
 645
 646             if (WritePrivateProfileStringW(L".ShellClassInfo", L"IconResource", fcs->pszIconFile, bufferW))
 647             {
 648                 TRACE("Wrote an iconresource entry %s into %s\n", debugstr_w(fcs->pszIconFile), debugstr_w(bufferW));
 649                 hr = S_OK;
 650             }
 651             else
 652                 ERR("Failed to write (to) Desktop.ini file\n");
 653         }
 654     }
 655     else
 656         FIXME("%p %s 0x%x: stub\n", fcs, debugstr_w(path), flag);
 657
 658     return hr;
 659 }
 660
 661 /***********************************************************************
 662  * SHLimitInputEdit (SHELL32.747)
 663  */
 664 HRESULT WINAPI SHLimitInputEdit( HWND textbox, IShellFolder *folder )
 665 {
 666     FIXME("%p %p: stub\n", textbox, folder);
 667     return E_NOTIMPL;
 668 }