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 "shell32_main.h"
  44 #include "shlwapi.h"
  45 #include "wine/debug.h"
  46 #include "shfldr.h"
  47
  48 WINE_DEFAULT_DEBUG_CHANNEL (shell);
  49
  50 /* SHCreateLinks flags */
  51 #define SHCLF_PREFIXNAME        0x01
  52 #define SHCLF_CREATEONDESKTOP   0x02
  53
  54 /***************************************************************************
  55  *  SHELL32_GetCustomFolderAttribute (internal function)
  56  *
  57  * Gets a value from the folder's desktop.ini file, if one exists.
  58  *
  59  * PARAMETERS
  60  *  pidl          [I] Folder containing the desktop.ini file.
  61  *  pwszHeading   [I] Heading in .ini file.
  62  *  pwszAttribute [I] Attribute in .ini file.
  63  *  pwszValue     [O] Buffer to store value into.
  64  *  cchValue      [I] Size in characters including NULL of buffer pointed to
  65  *                    by pwszValue.
  66  *
  67  *  RETURNS
  68  *    TRUE if returned non-NULL value.
  69  *    FALSE otherwise.
  70  */
  71 static inline BOOL SHELL32_GetCustomFolderAttributeFromPath(
  72     LPWSTR pwszFolderPath, LPCWSTR pwszHeading, LPCWSTR pwszAttribute,
  73     LPWSTR pwszValue, DWORD cchValue)
  74 {
  75     PathAddBackslashW(pwszFolderPath);
  76     PathAppendW(pwszFolderPath, L"desktop.ini");
  77     return GetPrivateProfileStringW(pwszHeading, pwszAttribute, L"", pwszValue, cchValue, pwszFolderPath);
  78 }
  79
  80 BOOL SHELL32_GetCustomFolderAttribute(
  81     LPCITEMIDLIST pidl, LPCWSTR pwszHeading, LPCWSTR pwszAttribute,
  82     LPWSTR pwszValue, DWORD cchValue)
  83 {
  84     DWORD dwAttrib = FILE_ATTRIBUTE_SYSTEM;
  85     WCHAR wszFolderPath[MAX_PATH];
  86
  87     /* Hack around not having system attribute on non-Windows file systems */
  88     if (0)
  89         dwAttrib = _ILGetFileAttributes(pidl, NULL, 0);
  90
  91     if (dwAttrib & FILE_ATTRIBUTE_SYSTEM)
  92     {
  93         if (!SHGetPathFromIDListW(pidl, wszFolderPath))
  94             return FALSE;
  95
  96         return SHELL32_GetCustomFolderAttributeFromPath(wszFolderPath, pwszHeading,
  97                                                 pwszAttribute, pwszValue, cchValue);
  98     }
  99     return FALSE;
 100 }
 101
 102 /***************************************************************************
 103  *  GetNextElement (internal function)
 104  *
 105  * Gets a part of a string till the first backslash.
 106  *
 107  * PARAMETERS
 108  *  pszNext [IN] string to get the element from
 109  *  pszOut  [IN] pointer to buffer which receives string
 110  *  dwOut   [IN] length of pszOut
 111  *
 112  *  RETURNS
 113  *    LPSTR pointer to first, not yet parsed char
 114  */
 115
 116 LPCWSTR GetNextElementW (LPCWSTR pszNext, LPWSTR pszOut, DWORD dwOut)
 117 {
 118     LPCWSTR pszTail = pszNext;
 119     DWORD dwCopy;
 120
 121     TRACE ("(%s %p 0x%08lx)\n", debugstr_w(pszNext), pszOut, dwOut);
 122
 123     *pszOut = 0;
 124
 125     if (!pszNext || !*pszNext)
 126         return NULL;
 127
 128     while (*pszTail && (*pszTail != (WCHAR) '\\'))
 129         pszTail++;
 130
 131     dwCopy = pszTail - pszNext + 1;
 132     lstrcpynW (pszOut, pszNext, (dwOut < dwCopy) ? dwOut : dwCopy);
 133
 134     if (*pszTail)
 135         pszTail++;
 136     else
 137         pszTail = NULL;
 138
 139     TRACE ("--(%s %s 0x%08lx %p)\n", debugstr_w (pszNext), debugstr_w (pszOut), dwOut, pszTail);
 140     return pszTail;
 141 }
 142
 143 HRESULT SHELL32_ParseNextElement (IShellFolder2 * psf, HWND hwndOwner, LPBC pbc,
 144                                   LPITEMIDLIST * pidlInOut, LPOLESTR szNext, DWORD * pEaten, DWORD * pdwAttributes)
 145 {
 146     LPITEMIDLIST pidlOut = NULL, pidlTemp = NULL;
 147     IShellFolder *psfChild;
 148     HRESULT hr;
 149
 150     TRACE ("(%p, %p, %p, %s)\n", psf, pbc, pidlInOut ? *pidlInOut : NULL, debugstr_w (szNext));
 151
 152     /* get the shellfolder for the child pidl and let it analyse further */
 153     hr = IShellFolder2_BindToObject (psf, *pidlInOut, pbc, &IID_IShellFolder, (LPVOID *) & psfChild);
 154
 155     if (SUCCEEDED(hr)) {
 156         hr = IShellFolder_ParseDisplayName (psfChild, hwndOwner, pbc, szNext, pEaten, &pidlOut, pdwAttributes);
 157         IShellFolder_Release (psfChild);
 158
 159         if (SUCCEEDED(hr)) {
 160             pidlTemp = ILCombine (*pidlInOut, pidlOut);
 161
 162             if (!pidlTemp)
 163                 hr = E_OUTOFMEMORY;
 164         }
 165
 166         if (pidlOut)
 167             ILFree (pidlOut);
 168     }
 169
 170     ILFree (*pidlInOut);
 171     *pidlInOut = pidlTemp;
 172
 173     TRACE ("-- pidl=%p ret=0x%08lx\n", pidlInOut ? *pidlInOut : NULL, hr);
 174     return hr;
 175 }
 176
 177 /***********************************************************************
 178  *      SHELL32_CoCreateInitSF
 179  *
 180  * Creates a shell folder and initializes it with a pidl and a root folder
 181  * via IPersistFolder3 or IPersistFolder.
 182  *
 183  * NOTES
 184  *   pathRoot can be NULL for Folders being a drive.
 185  *   In this case the absolute path is built from pidlChild (eg. C:)
 186  */
 187 static HRESULT SHELL32_CoCreateInitSF (LPCITEMIDLIST pidlRoot, LPCWSTR pathRoot,
 188                 LPCITEMIDLIST pidlChild, REFCLSID clsid, LPVOID * ppvOut)
 189 {
 190     HRESULT hr;
 191
 192     TRACE ("(%p %s %p %s %p)\n", pidlRoot, debugstr_w(pathRoot), pidlChild, debugstr_guid(clsid), ppvOut);
 193
 194     hr = SHCoCreateInstance(NULL, clsid, NULL, &IID_IShellFolder, ppvOut);
 195     if (SUCCEEDED (hr))
 196     {
 197         LPITEMIDLIST pidlAbsolute = ILCombine (pidlRoot, pidlChild);
 198         IPersistFolder *pPF;
 199         IPersistFolder3 *ppf;
 200
 201         if (_ILIsFolder(pidlChild) &&
 202             SUCCEEDED (IUnknown_QueryInterface ((IUnknown *) * ppvOut, &IID_IPersistFolder3, (LPVOID *) & ppf)))
 203         {
 204             PERSIST_FOLDER_TARGET_INFO ppfti;
 205
 206             ZeroMemory (&ppfti, sizeof (ppfti));
 207
 208             /* fill the PERSIST_FOLDER_TARGET_INFO */
 209             ppfti.dwAttributes = -1;
 210             ppfti.csidl = -1;
 211
 212             /* build path */
 213             if (pathRoot) {
 214                 lstrcpynW (ppfti.szTargetParsingName, pathRoot, MAX_PATH - 1);
 215                 PathAddBackslashW(ppfti.szTargetParsingName); /* FIXME: why have drives a backslash here ? */
 216             }
 217
 218             if (pidlChild) {
 219                 int len = lstrlenW(ppfti.szTargetParsingName);
 220
 221                 if (!_ILSimpleGetTextW(pidlChild, ppfti.szTargetParsingName + len, MAX_PATH - len))
 222                         hr = E_INVALIDARG;
 223             }
 224
 225             IPersistFolder3_InitializeEx (ppf, NULL, pidlAbsolute, &ppfti);
 226             IPersistFolder3_Release (ppf);
 227         }
 228         else if (SUCCEEDED ((hr = IUnknown_QueryInterface ((IUnknown *) * ppvOut, &IID_IPersistFolder, (LPVOID *) & pPF)))) {
 229             IPersistFolder_Initialize (pPF, pidlAbsolute);
 230             IPersistFolder_Release (pPF);
 231         }
 232         ILFree (pidlAbsolute);
 233     }
 234     TRACE ("-- (%p) ret=0x%08lx\n", *ppvOut, hr);
 235     return hr;
 236 }
 237
 238 /***********************************************************************
 239  *      SHELL32_BindToChild [Internal]
 240  *
 241  * Common code for IShellFolder_BindToObject.
 242  *
 243  * PARAMS
 244  *  pidlRoot     [I] The parent shell folder's absolute pidl.
 245  *  pathRoot     [I] Absolute dos path of the parent shell folder.
 246  *  pidlComplete [I] PIDL of the child. Relative to pidlRoot.
 247  *  riid         [I] GUID of the interface, which ppvOut shall be bound to.
 248  *  ppvOut       [O] A reference to the child's interface (riid).
 249  *
 250  * NOTES
 251  *  pidlComplete has to contain at least one non empty SHITEMID.
 252  *  This function makes special assumptions on the shell namespace, which
 253  *  means you probably can't use it for your IShellFolder implementation.
 254  */
 255 HRESULT SHELL32_BindToChild (LPCITEMIDLIST pidlRoot, const CLSID *clsidChild,
 256                              LPCWSTR pathRoot, LPCITEMIDLIST pidlComplete, REFIID riid, LPVOID * ppvOut)
 257 {
 258     GUID const *clsid;
 259     IShellFolder *pSF;
 260     HRESULT hr;
 261     LPITEMIDLIST pidlChild;
 262
 263     TRACE("(%p %s %p %s %p)\n", pidlRoot, debugstr_w(pathRoot), pidlComplete, debugstr_guid(riid), ppvOut);
 264
 265     if (!pidlRoot || !ppvOut || _ILIsEmpty(pidlComplete))
 266         return E_INVALIDARG;
 267
 268     *ppvOut = NULL;
 269
 270     pidlChild = ILCloneFirst (pidlComplete);
 271
 272     if ((clsid = _ILGetGUIDPointer (pidlChild))) {
 273         /* virtual folder */
 274         hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild, clsid, (LPVOID *)&pSF);
 275     } else if (_ILIsValue(pidlChild)) {
 276         /* Don't bind to files */
 277         hr = HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
 278     } else {
 279         /* file system folder */
 280         CLSID clsidFolder = *clsidChild;
 281         WCHAR wszCLSIDValue[CHARS_IN_GUID], wszFolderPath[MAX_PATH], *pwszPathTail = wszFolderPath;
 282
 283         /* see if folder CLSID should be overridden by desktop.ini file */
 284         if (pathRoot) {
 285             lstrcpynW(wszFolderPath, pathRoot, MAX_PATH);
 286             pwszPathTail = PathAddBackslashW(wszFolderPath);
 287         }
 288
 289         _ILSimpleGetTextW(pidlChild,pwszPathTail,MAX_PATH - (int)(pwszPathTail - wszFolderPath));
 290
 291         if (SHELL32_GetCustomFolderAttributeFromPath (wszFolderPath,
 292             L".ShellClassInfo", L"CLSID", wszCLSIDValue, CHARS_IN_GUID))
 293             CLSIDFromString (wszCLSIDValue, &clsidFolder);
 294
 295         hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild,
 296                                      &clsidFolder, (LPVOID *)&pSF);
 297     }
 298     ILFree (pidlChild);
 299
 300     if (SUCCEEDED (hr)) {
 301         if (_ILIsPidlSimple (pidlComplete)) {
 302             /* no sub folders */
 303             hr = IShellFolder_QueryInterface (pSF, riid, ppvOut);
 304         } else {
 305             /* go deeper */
 306             hr = IShellFolder_BindToObject (pSF, ILGetNext (pidlComplete), NULL, riid, ppvOut);
 307         }
 308         IShellFolder_Release (pSF);
 309     }
 310
 311     TRACE ("-- returning (%p) 0x%08lx\n", *ppvOut, hr);
 312
 313     return hr;
 314 }
 315
 316 /***********************************************************************
 317  *      SHELL32_GetDisplayNameOfChild
 318  *
 319  * Retrieves the display name of a child object of a shellfolder.
 320  *
 321  * For a pidl eg. [subpidl1][subpidl2][subpidl3]:
 322  * - it binds to the child shellfolder [subpidl1]
 323  * - asks it for the displayname of [subpidl2][subpidl3]
 324  *
 325  * Is possible the pidl is a simple pidl. In this case it asks the
 326  * subfolder for the displayname of an empty pidl. The subfolder
 327  * returns the own displayname eg. "::{guid}". This is used for
 328  * virtual folders with the registry key WantsFORPARSING set.
 329  */
 330 HRESULT SHELL32_GetDisplayNameOfChild (IShellFolder2 * psf,
 331                                        LPCITEMIDLIST pidl, DWORD dwFlags, LPWSTR szOut, DWORD dwOutLen)
 332 {
 333     LPITEMIDLIST pidlFirst;
 334     HRESULT hr;
 335
 336     TRACE ("(%p)->(pidl=%p 0x%08lx %p 0x%08lx)\n", psf, pidl, dwFlags, szOut, dwOutLen);
 337     pdump (pidl);
 338
 339     pidlFirst = ILCloneFirst (pidl);
 340     if (pidlFirst) {
 341         IShellFolder2 *psfChild;
 342
 343         hr = IShellFolder2_BindToObject (psf, pidlFirst, NULL, &IID_IShellFolder, (LPVOID *) & psfChild);
 344         if (SUCCEEDED (hr)) {
 345             STRRET strTemp;
 346             LPITEMIDLIST pidlNext = ILGetNext (pidl);
 347
 348             hr = IShellFolder2_GetDisplayNameOf (psfChild, pidlNext, dwFlags, &strTemp);
 349             if (SUCCEEDED (hr)) {
 350                 if(!StrRetToStrNW (szOut, dwOutLen, &strTemp, pidlNext))
 351                     hr = E_FAIL;
 352             }
 353             IShellFolder2_Release (psfChild);
 354         }
 355         ILFree (pidlFirst);
 356     } else
 357         hr = E_OUTOFMEMORY;
 358
 359     TRACE ("-- ret=0x%08lx %s\n", hr, debugstr_w(szOut));
 360
 361     return hr;
 362 }
 363
 364 /***********************************************************************
 365  *  SHELL32_GetItemAttributes
 366  *
 367  * NOTES
 368  * Observed values:
 369  *  folder:     0xE0000177      FILESYSTEM | HASSUBFOLDER | FOLDER
 370  *  file:       0x40000177      FILESYSTEM
 371  *  drive:      0xf0000144      FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR
 372  *  mycomputer: 0xb0000154      HASSUBFOLDER | FOLDER | FILESYSANCESTOR
 373  *  (seems to be default for shell extensions if no registry entry exists)
 374  *
 375  * win2k:
 376  *  folder:    0xF0400177      FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER
 377  *  file:      0x40400177      FILESYSTEM | CANMONIKER
 378  *  drive      0xF0400154      FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER | CANRENAME (LABEL)
 379  *
 380  * According to the MSDN documentation this function should not set flags. It claims only to reset flags when necessary.
 381  * However it turns out the native shell32.dll _sets_ flags in several cases - so do we.
 382  */
 383 HRESULT SHELL32_GetItemAttributes (IShellFolder2 *psf, LPCITEMIDLIST pidl, LPDWORD pdwAttributes)
 384 {
 385     DWORD dwAttributes;
 386     BOOL has_guid;
 387     static const DWORD dwSupportedAttr=
 388                           SFGAO_CANCOPY |           /*0x00000001 */
 389                           SFGAO_CANMOVE |           /*0x00000002 */
 390                           SFGAO_CANLINK |           /*0x00000004 */
 391                           SFGAO_CANRENAME |         /*0x00000010 */
 392                           SFGAO_CANDELETE |         /*0x00000020 */
 393                           SFGAO_HASPROPSHEET |      /*0x00000040 */
 394                           SFGAO_DROPTARGET |        /*0x00000100 */
 395                           SFGAO_LINK |              /*0x00010000 */
 396                           SFGAO_READONLY |          /*0x00040000 */
 397                           SFGAO_HIDDEN |            /*0x00080000 */
 398                           SFGAO_FILESYSANCESTOR |   /*0x10000000 */
 399                           SFGAO_FOLDER |            /*0x20000000 */
 400                           SFGAO_FILESYSTEM |        /*0x40000000 */
 401                           SFGAO_HASSUBFOLDER;       /*0x80000000 */
 402
 403     TRACE ("0x%08lx\n", *pdwAttributes);
 404
 405     if (*pdwAttributes & ~dwSupportedAttr)
 406     {
 407         WARN ("attributes 0x%08lx not implemented\n", (*pdwAttributes & ~dwSupportedAttr));
 408         *pdwAttributes &= dwSupportedAttr;
 409     }
 410
 411     has_guid = _ILGetGUIDPointer(pidl) != NULL;
 412
 413     dwAttributes = *pdwAttributes;
 414
 415     if (_ILIsDrive (pidl)) {
 416         *pdwAttributes &= SFGAO_HASSUBFOLDER|SFGAO_FILESYSTEM|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR|
 417             SFGAO_DROPTARGET|SFGAO_HASPROPSHEET|SFGAO_CANLINK;
 418     } else if (has_guid && HCR_GetFolderAttributes(pidl, &dwAttributes)) {
 419         *pdwAttributes = dwAttributes;
 420     } else if (_ILGetDataPointer (pidl)) {
 421         DWORD file_attr = _ILGetFileAttributes (pidl, NULL, 0);
 422
 423         if (!file_attr) {
 424             WCHAR path[MAX_PATH];
 425             STRRET strret;
 426
 427             /* File attributes are not present in the internal PIDL structure, so get them from the file system. */
 428
 429             HRESULT hr = IShellFolder2_GetDisplayNameOf(psf, pidl, SHGDN_FORPARSING, &strret);
 430             if (SUCCEEDED(hr)) {
 431                 hr = StrRetToBufW(&strret, pidl, path, MAX_PATH);
 432
 433                 /* call GetFileAttributes() only for file system paths, not for parsing names like "::{...}" */
 434                 if (SUCCEEDED(hr) && path[0]!=':')
 435                     file_attr = GetFileAttributesW(path);
 436             }
 437         }
 438
 439         /* Set common attributes */
 440         *pdwAttributes |= SFGAO_FILESYSTEM | SFGAO_DROPTARGET | SFGAO_HASPROPSHEET | SFGAO_CANDELETE |
 441                           SFGAO_CANRENAME | SFGAO_CANLINK | SFGAO_CANMOVE | SFGAO_CANCOPY;
 442
 443         if (file_attr & FILE_ATTRIBUTE_DIRECTORY)
 444             *pdwAttributes |=  (SFGAO_FOLDER | SFGAO_HASSUBFOLDER | SFGAO_FILESYSANCESTOR | SFGAO_STORAGEANCESTOR | SFGAO_STORAGE);
 445         else
 446         {
 447             *pdwAttributes &= ~(SFGAO_FOLDER | SFGAO_HASSUBFOLDER | SFGAO_FILESYSANCESTOR | SFGAO_STORAGEANCESTOR | SFGAO_STORAGE);
 448             *pdwAttributes |= SFGAO_STREAM;
 449         }
 450
 451         if (file_attr & FILE_ATTRIBUTE_HIDDEN)
 452             *pdwAttributes |=  SFGAO_HIDDEN;
 453         else
 454             *pdwAttributes &= ~SFGAO_HIDDEN;
 455
 456         if (file_attr & FILE_ATTRIBUTE_READONLY)
 457             *pdwAttributes |=  SFGAO_READONLY;
 458         else
 459             *pdwAttributes &= ~SFGAO_READONLY;
 460
 461         if (SFGAO_LINK & *pdwAttributes) {
 462             char ext[MAX_PATH];
 463
 464             if (!_ILGetExtension(pidl, ext, MAX_PATH) || lstrcmpiA(ext, "lnk"))
 465                 *pdwAttributes &= ~SFGAO_LINK;
 466         }
 467     } else {
 468         *pdwAttributes &= SFGAO_HASSUBFOLDER|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR|SFGAO_DROPTARGET|SFGAO_HASPROPSHEET|SFGAO_CANRENAME|SFGAO_CANLINK;
 469     }
 470     TRACE ("-- 0x%08lx\n", *pdwAttributes);
 471     return S_OK;
 472 }
 473
 474 /***********************************************************************
 475  *  SHELL32_CompareIDs
 476  */
 477 HRESULT SHELL32_CompareIDs(IShellFolder2 *sf, LPARAM lParam, LPCITEMIDLIST pidl1,
 478         LPCITEMIDLIST pidl2)
 479 {
 480     int type1, type2;
 481     char szTemp1[MAX_PATH];
 482     char szTemp2[MAX_PATH];
 483     HRESULT nReturn;
 484     LPITEMIDLIST firstpidl, nextpidl1, nextpidl2;
 485     IShellFolder *psf;
 486
 487     /* test for empty pidls */
 488     BOOL isEmpty1 = _ILIsDesktop (pidl1);
 489     BOOL isEmpty2 = _ILIsDesktop (pidl2);
 490
 491     if (isEmpty1 && isEmpty2)
 492         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 0 );
 493     if (isEmpty1)
 494         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 495     if (isEmpty2)
 496         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 497
 498     /* test for different types. Sort order is the PT_* constant */
 499     type1 = _ILGetDataPointer (pidl1)->type;
 500     type2 = _ILGetDataPointer (pidl2)->type;
 501     if (type1 < type2)
 502         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 503     else if (type1 > type2)
 504         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 505
 506     /* test for name of pidl */
 507     _ILSimpleGetText (pidl1, szTemp1, MAX_PATH);
 508     _ILSimpleGetText (pidl2, szTemp2, MAX_PATH);
 509     nReturn = lstrcmpiA (szTemp1, szTemp2);
 510     if (nReturn < 0)
 511         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 512     else if (nReturn > 0)
 513         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 514
 515     /* test of complex pidls */
 516     firstpidl = ILCloneFirst (pidl1);
 517     nextpidl1 = ILGetNext (pidl1);
 518     nextpidl2 = ILGetNext (pidl2);
 519
 520     /* optimizing: test special cases and bind not deeper */
 521     /* the deeper shellfolder would do the same */
 522     isEmpty1 = _ILIsDesktop (nextpidl1);
 523     isEmpty2 = _ILIsDesktop (nextpidl2);
 524
 525     if (isEmpty1 && isEmpty2) {
 526         nReturn = MAKE_HRESULT( SEVERITY_SUCCESS, 0, 0 );
 527     } else if (isEmpty1) {
 528         nReturn = MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 529     } else if (isEmpty2) {
 530         nReturn = MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 531     /* optimizing end */
 532     } else if (SUCCEEDED(IShellFolder2_BindToObject(sf, firstpidl, NULL, &IID_IShellFolder, (void **)&psf))) {
 533         nReturn = IShellFolder_CompareIDs (psf, lParam, nextpidl1, nextpidl2);
 534         IShellFolder_Release (psf);
 535     }
 536     ILFree (firstpidl);
 537     return nReturn;
 538 }
 539
 540 HRESULT SHELL32_GetColumnDetails(const shvheader *data, int column, SHELLDETAILS *details)
 541 {
 542     details->fmt = data[column].fmt;
 543     details->cxChar = data[column].cxChar;
 544
 545     if (SHELL_OsIsUnicode())
 546     {
 547         details->str.u.pOleStr = CoTaskMemAlloc(MAX_PATH * sizeof(WCHAR));
 548         if (!details->str.u.pOleStr) return E_OUTOFMEMORY;
 549
 550         details->str.uType = STRRET_WSTR;
 551         LoadStringW(shell32_hInstance, data[column].colnameid, details->str.u.pOleStr, MAX_PATH);
 552     }
 553     else
 554     {
 555         details->str.uType = STRRET_CSTR;
 556         LoadStringA(shell32_hInstance, data[column].colnameid, details->str.u.cStr, MAX_PATH);
 557     }
 558
 559     return S_OK;
 560 }
 561
 562 HRESULT shellfolder_map_column_to_scid(const shvheader *header, UINT column, SHCOLUMNID *scid)
 563 {
 564     if (header[column].fmtid == NULL)
 565     {
 566         FIXME("missing property id for column %u.\n", column);
 567         memset(scid, 0, sizeof(*scid));
 568         return E_NOTIMPL;
 569     }
 570
 571     scid->fmtid = *header[column].fmtid;
 572     scid->pid = header[column].pid;
 573
 574     return S_OK;
 575 }
 576
 577 HRESULT shellfolder_get_file_details(IShellFolder2 *iface, LPCITEMIDLIST pidl, const shvheader *header,
 578                                      int column, SHELLDETAILS *psd)
 579 {
 580     psd->str.uType = STRRET_CSTR;
 581     switch (header[column].pid)
 582     {
 583     case PID_STG_NAME:
 584         return IShellFolder2_GetDisplayNameOf( iface, pidl, SHGDN_NORMAL | SHGDN_INFOLDER, &psd->str );
 585     case PID_STG_SIZE:
 586         _ILGetFileSize( pidl, psd->str.u.cStr, MAX_PATH );
 587         break;
 588     case PID_STG_STORAGETYPE:
 589         _ILGetFileType( pidl, psd->str.u.cStr, MAX_PATH );
 590         break;
 591     case PID_STG_WRITETIME:
 592         _ILGetFileDate( pidl, psd->str.u.cStr, MAX_PATH );
 593         break;
 594     case PID_STG_ATTRIBUTES:
 595         _ILGetFileAttributes( pidl, psd->str.u.cStr, MAX_PATH );
 596         break;
 597     }
 598     return S_OK;
 599 }
 600
 601 /***********************************************************************
 602  *  SHCreateLinks
 603  *
 604  *   Undocumented.
 605  */
 606 HRESULT WINAPI SHCreateLinks( HWND hWnd, LPCSTR lpszDir, LPDATAOBJECT lpDataObject,
 607                               UINT uFlags, LPITEMIDLIST *lppidlLinks)
 608 {
 609     FIXME("%p %s %p %08x %p\n",hWnd,lpszDir,lpDataObject,uFlags,lppidlLinks);
 610     return E_NOTIMPL;
 611 }
 612
 613 /***********************************************************************
 614  *  SHOpenFolderAndSelectItems
 615  *
 616  *   Added in XP.
 617  */
 618 HRESULT WINAPI SHOpenFolderAndSelectItems(PCIDLIST_ABSOLUTE pidlFolder, UINT cidl,
 619                                           PCUITEMID_CHILD_ARRAY apidl, DWORD flags)
 620 {
 621     static const unsigned int magic = 0xe32ee32e;
 622     unsigned int i, uint_flags, size, child_count = 0;
 623     const ITEMIDLIST *pidl_parent, *pidl_child;
 624     VARIANT var_parent, var_empty;
 625     ITEMIDLIST *pidl_tmp = NULL;
 626     SHELLEXECUTEINFOW sei = {0};
 627     COPYDATASTRUCT cds = {0};
 628     IDispatch *dispatch;
 629     int timeout = 1000;
 630     unsigned char *ptr;
 631     IShellWindows *sw;
 632     BOOL ret = FALSE;
 633     HRESULT hr;
 634     LONG hwnd;
 635
 636     TRACE("%p %u %p 0x%lx\n", pidlFolder, cidl, apidl, flags);
 637
 638     if (!pidlFolder)
 639         return E_INVALIDARG;
 640
 641     if (flags & OFASI_OPENDESKTOP)
 642         FIXME("Ignoring unsupported OFASI_OPENDESKTOP flag.\n");
 643
 644     if (flags & OFASI_EDIT && cidl > 1)
 645         flags &= ~OFASI_EDIT;
 646
 647     hr = CoCreateInstance(&CLSID_ShellWindows, NULL, CLSCTX_LOCAL_SERVER, &IID_IShellWindows,
 648                           (void **)&sw);
 649     if (FAILED(hr))
 650         return hr;
 651
 652     if (!cidl)
 653     {
 654         pidl_tmp = ILClone(pidlFolder);
 655         ILRemoveLastID(pidl_tmp);
 656         pidl_parent = pidl_tmp;
 657
 658         pidl_child = ILFindLastID(pidlFolder);
 659         apidl = &pidl_child;
 660         cidl = 1;
 661     }
 662     else
 663     {
 664         pidl_parent = pidlFolder;
 665     }
 666
 667     /* Find the existing explorer window for the parent path. Create a new one if not present. */
 668     VariantInit(&var_empty);
 669     VariantInit(&var_parent);
 670     size = ILGetSize(pidl_parent);
 671     V_VT(&var_parent) = VT_ARRAY | VT_UI1;
 672     V_ARRAY(&var_parent) = SafeArrayCreateVector(VT_UI1, 0, size);
 673     memcpy(V_ARRAY(&var_parent)->pvData, pidl_parent, size);
 674     hr = IShellWindows_FindWindowSW(sw, &var_parent, &var_empty, SWC_EXPLORER, &hwnd, 0, &dispatch);
 675     if (hr != S_OK)
 676     {
 677         sei.cbSize = sizeof(sei);
 678         sei.fMask = SEE_MASK_FLAG_NO_UI | SEE_MASK_IDLIST | SEE_MASK_NOASYNC | SEE_MASK_WAITFORINPUTIDLE;
 679         sei.lpVerb = L"explore";
 680         sei.lpIDList = (void *)pidl_parent;
 681         sei.nShow = SW_NORMAL;
 682         if (!ShellExecuteExW(&sei))
 683         {
 684             WARN("Failed to create a explorer window.\n");
 685             goto done;
 686         }
 687
 688         while (timeout > 0)
 689         {
 690             hr = IShellWindows_FindWindowSW(sw, &var_parent, &var_empty, SWC_EXPLORER, &hwnd, 0,
 691                                             &dispatch);
 692             if (hr == S_OK)
 693                 break;
 694
 695             timeout -= 100;
 696             Sleep(100);
 697         }
 698
 699         if (hr != S_OK)
 700         {
 701             WARN("Failed to find the explorer window.\n");
 702             goto done;
 703         }
 704     }
 705
 706     /* Send WM_COPYDATA to tell explorer.exe to open windows */
 707     size = sizeof(cidl) + sizeof(uint_flags);
 708     for (i = 0; i < cidl; ++i)
 709         size += ILGetSize(apidl[i]);
 710
 711     cds.dwData = magic;
 712     cds.cbData = size;
 713     cds.lpData = malloc(size);
 714     if (!cds.lpData)
 715     {
 716         hr = E_OUTOFMEMORY;
 717         goto done;
 718     }
 719
 720     /* Add the count of child ITEMIDLIST, set its value at the end */
 721     ptr = (unsigned char *)cds.lpData + sizeof(cidl);
 722
 723     /* Add flags. Have to use unsigned int because DWORD may have a different size */
 724     uint_flags = flags;
 725     memcpy(ptr, &uint_flags, sizeof(uint_flags));
 726     ptr += sizeof(uint_flags);
 727
 728     /* Add child ITEMIDLIST */
 729     for (i = 0; i < cidl; ++i)
 730     {
 731         if (apidl != &pidl_child)
 732             pidl_child = ILFindChild(pidl_parent, apidl[i]);
 733
 734         if (pidl_child)
 735         {
 736             size = ILGetSize(pidl_child);
 737             memcpy(ptr, pidl_child, size);
 738             ptr += size;
 739             ++child_count;
 740         }
 741     }
 742
 743     /* Set the count of child ITEMIDLIST */
 744     memcpy(cds.lpData, &child_count, sizeof(child_count));
 745
 746     SetForegroundWindow(GetAncestor((HWND)(LONG_PTR)hwnd, GA_ROOT));
 747     ret = SendMessageW((HWND)(LONG_PTR)hwnd, WM_COPYDATA, 0, (LPARAM)&cds);
 748     hr = ret ? S_OK : E_FAIL;
 749
 750 done:
 751     free(cds.lpData);
 752     VariantClear(&var_parent);
 753     if (pidl_tmp)
 754         ILFree(pidl_tmp);
 755     IShellWindows_Release(sw);
 756     return hr;
 757 }
 758
 759 /***********************************************************************
 760  *  SHGetSetFolderCustomSettings (SHELL32.709)
 761  *
 762  *   Only Unicode above Server 2003, writes/reads from a Desktop.ini
 763  */
 764 HRESULT WINAPI SHGetSetFolderCustomSettings( LPSHFOLDERCUSTOMSETTINGS fcs, PCWSTR path, DWORD flag )
 765 {
 766     WCHAR bufferW[MAX_PATH];
 767     HRESULT hr;
 768
 769     hr = E_FAIL;
 770     bufferW[0] = 0;
 771
 772     if (!fcs || !path)
 773         return hr;
 774
 775     if (flag & FCS_FORCEWRITE)
 776     {
 777         if (fcs->dwMask & FCSM_ICONFILE)
 778         {
 779             lstrcpyW(bufferW, path);
 780             PathAddBackslashW(bufferW);
 781             lstrcatW(bufferW, L"desktop.ini");
 782
 783             if (WritePrivateProfileStringW(L".ShellClassInfo", L"IconResource", fcs->pszIconFile, bufferW))
 784             {
 785                 TRACE("Wrote an iconresource entry %s into %s\n", debugstr_w(fcs->pszIconFile), debugstr_w(bufferW));
 786                 hr = S_OK;
 787             }
 788             else
 789                 ERR("Failed to write (to) Desktop.ini file\n");
 790         }
 791     }
 792     else
 793         FIXME("%p %s 0x%lx: stub\n", fcs, debugstr_w(path), flag);
 794
 795     return hr;
 796 }
 797
 798 /***********************************************************************
 799  * SHLimitInputEdit (SHELL32.747)
 800  */
 801 HRESULT WINAPI SHLimitInputEdit( HWND textbox, IShellFolder *folder )
 802 {
 803     FIXME("%p %p: stub\n", textbox, folder);
 804     return E_NOTIMPL;
 805 }