dlls/shell32/pidl.c

   1 /*
   2  *    pidl Handling
   3  *
   4  *    Copyright 1998    Juergen Schmied
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  * NOTES
  21  *  a pidl == NULL means desktop and is legal
  22  *
  23  */
  24
  25 #include "config.h"
  26 #include "wine/port.h"
  27
  28 #include <ctype.h>
  29 #include <stdarg.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 #define COBJMACROS
  34 #define NONAMELESSUNION
  35
  36 #include "windef.h"
  37 #include "winbase.h"
  38 #include "winreg.h"
  39 #include "objbase.h"
  40 #include "shlguid.h"
  41 #include "winerror.h"
  42 #include "winnls.h"
  43 #include "undocshell.h"
  44 #include "shell32_main.h"
  45 #include "shlwapi.h"
  46
  47 #include "pidl.h"
  48 #include "wine/debug.h"
  49
  50 WINE_DEFAULT_DEBUG_CHANNEL(pidl);
  51 WINE_DECLARE_DEBUG_CHANNEL(shell);
  52
  53 /* from comctl32.dll */
  54 extern LPVOID WINAPI Alloc(INT);
  55 extern BOOL WINAPI Free(LPVOID);
  56
  57 static LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl);
  58 static LPWSTR _ILGetTextPointerW(LPCITEMIDLIST pidl);
  59
  60 /*************************************************************************
  61  * ILGetDisplayNameExA
  62  *
  63  * Retrieves the display name of an ItemIDList
  64  *
  65  * PARAMS
  66  *  psf        [I]   Shell Folder to start with, if NULL the desktop is used
  67  *  pidl       [I]   ItemIDList relative to the psf to get the display name for
  68  *  path       [O]   Filled in with the display name, assumed to be at least MAX_PATH long
  69  *  type       [I]   Type of display name to retrieve
  70  *                    0 = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR uses always the desktop as root
  71  *                    1 = SHGDN_NORMAL relative to the root folder
  72  *                    2 = SHGDN_INFOLDER relative to the root folder, only the last name
  73  *
  74  * RETURNS
  75  *  True if the display name could be retrieved successfully, False otherwise
  76  */
  77 static BOOL ILGetDisplayNameExA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPSTR path, DWORD type)
  78 {
  79     BOOL ret = FALSE;
  80     WCHAR wPath[MAX_PATH];
  81
  82     TRACE("%p %p %p %d\n", psf, pidl, path, type);
  83
  84     if (!pidl || !path)
  85         return FALSE;
  86
  87     ret = ILGetDisplayNameExW(psf, pidl, wPath, type);
  88     WideCharToMultiByte(CP_ACP, 0, wPath, -1, path, MAX_PATH, NULL, NULL);
  89     TRACE("%p %p %s\n", psf, pidl, debugstr_a(path));
  90
  91     return ret;
  92 }
  93
  94 BOOL ILGetDisplayNameExW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPWSTR path, DWORD type)
  95 {
  96     LPSHELLFOLDER psfParent, lsf = psf;
  97     HRESULT ret = NO_ERROR;
  98     LPCITEMIDLIST pidllast;
  99     STRRET strret;
 100     DWORD flag;
 101
 102     TRACE("%p %p %p %x\n", psf, pidl, path, type);
 103
 104     if (!pidl || !path)
 105         return FALSE;
 106
 107     if (!lsf)
 108     {
 109         ret = SHGetDesktopFolder(&lsf);
 110         if (FAILED(ret))
 111             return FALSE;
 112     }
 113
 114     switch (type)
 115     {
 116     case ILGDN_FORPARSING:
 117         flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 118         break;
 119     case ILGDN_NORMAL:
 120         flag = SHGDN_NORMAL;
 121         break;
 122     case ILGDN_INFOLDER:
 123         flag = SHGDN_INFOLDER;
 124         break;
 125     default:
 126         FIXME("Unknown type parameter = %x\n", type);
 127         flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 128         break;
 129     }
 130
 131     if (!*(const WORD*)pidl || type == ILGDN_FORPARSING)
 132     {
 133         ret = IShellFolder_GetDisplayNameOf(lsf, pidl, flag, &strret);
 134         if (SUCCEEDED(ret))
 135         {
 136             if(!StrRetToStrNW(path, MAX_PATH, &strret, pidl))
 137                 ret = E_FAIL;
 138         }
 139     }
 140     else
 141     {
 142         ret = SHBindToParent(pidl, &IID_IShellFolder, (LPVOID*)&psfParent, &pidllast);
 143         if (SUCCEEDED(ret))
 144         {
 145             ret = IShellFolder_GetDisplayNameOf(psfParent, pidllast, flag, &strret);
 146             if (SUCCEEDED(ret))
 147             {
 148                 if(!StrRetToStrNW(path, MAX_PATH, &strret, pidllast))
 149                     ret = E_FAIL;
 150             }
 151             IShellFolder_Release(psfParent);
 152         }
 153     }
 154
 155     TRACE("%p %p %s\n", psf, pidl, debugstr_w(path));
 156
 157     if (!psf)
 158         IShellFolder_Release(lsf);
 159     return SUCCEEDED(ret);
 160 }
 161
 162 /*************************************************************************
 163  * ILGetDisplayNameEx        [SHELL32.186]
 164  */
 165 BOOL WINAPI ILGetDisplayNameEx(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPVOID path, DWORD type)
 166 {
 167     TRACE_(shell)("%p %p %p %d\n", psf, pidl, path, type);
 168
 169     if (SHELL_OsIsUnicode())
 170         return ILGetDisplayNameExW(psf, pidl, path, type);
 171     return ILGetDisplayNameExA(psf, pidl, path, type);
 172 }
 173
 174 /*************************************************************************
 175  * ILGetDisplayName            [SHELL32.15]
 176  */
 177 BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl, LPVOID path)
 178 {
 179     TRACE_(shell)("%p %p\n", pidl, path);
 180
 181     if (SHELL_OsIsUnicode())
 182         return ILGetDisplayNameExW(NULL, pidl, path, ILGDN_FORPARSING);
 183     return ILGetDisplayNameExA(NULL, pidl, path, ILGDN_FORPARSING);
 184 }
 185
 186 /*************************************************************************
 187  * ILFindLastID [SHELL32.16]
 188  *
 189  * NOTES
 190  *   observed: pidl=Desktop return=pidl
 191  */
 192 LPITEMIDLIST WINAPI ILFindLastID(LPCITEMIDLIST pidl)
 193 {
 194     LPCITEMIDLIST   pidlLast = pidl;
 195
 196     TRACE("(pidl=%p)\n",pidl);
 197
 198     if (!pidl)
 199         return NULL;
 200
 201     while (pidl->mkid.cb)
 202     {
 203         pidlLast = pidl;
 204         pidl = ILGetNext(pidl);
 205     }
 206     return (LPITEMIDLIST)pidlLast;
 207 }
 208
 209 /*************************************************************************
 210  * ILRemoveLastID [SHELL32.17]
 211  *
 212  * NOTES
 213  *   when pidl=Desktop return=FALSE
 214  */
 215 BOOL WINAPI ILRemoveLastID(LPITEMIDLIST pidl)
 216 {
 217     TRACE_(shell)("pidl=%p\n",pidl);
 218
 219     if (_ILIsEmpty(pidl))
 220         return FALSE;
 221     ILFindLastID(pidl)->mkid.cb = 0;
 222     return TRUE;
 223 }
 224
 225 /*************************************************************************
 226  * ILClone [SHELL32.18]
 227  *
 228  * NOTES
 229  *    duplicate an idlist
 230  */
 231 LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
 232 {
 233     DWORD    len;
 234     LPITEMIDLIST  newpidl;
 235
 236     if (!pidl)
 237         return NULL;
 238
 239     len = ILGetSize(pidl);
 240     newpidl = SHAlloc(len);
 241     if (newpidl)
 242         memcpy(newpidl,pidl,len);
 243
 244     TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 245     pdump(pidl);
 246
 247     return newpidl;
 248 }
 249
 250 /*************************************************************************
 251  * ILCloneFirst [SHELL32.19]
 252  *
 253  * NOTES
 254  *  duplicates the first idlist of a complex pidl
 255  */
 256 LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
 257 {
 258     DWORD len;
 259     LPITEMIDLIST pidlNew = NULL;
 260
 261     TRACE("pidl=%p\n", pidl);
 262     pdump(pidl);
 263
 264     if (pidl)
 265     {
 266         len = pidl->mkid.cb;
 267         pidlNew = SHAlloc(len+2);
 268         if (pidlNew)
 269         {
 270             memcpy(pidlNew,pidl,len+2);        /* 2 -> mind a desktop pidl */
 271
 272             if (len)
 273                 ILGetNext(pidlNew)->mkid.cb = 0x00;
 274         }
 275     }
 276     TRACE("-- newpidl=%p\n",pidlNew);
 277
 278     return pidlNew;
 279 }
 280
 281 /*************************************************************************
 282  * ILLoadFromStream (SHELL32.26)
 283  *
 284  * NOTES
 285  *   the first two bytes are the len, the pidl is following then
 286  */
 287 HRESULT WINAPI ILLoadFromStream (IStream * pStream, LPITEMIDLIST * ppPidl)
 288 {
 289     WORD        wLen = 0;
 290     DWORD       dwBytesRead;
 291     HRESULT     ret = E_FAIL;
 292
 293
 294     TRACE_(shell)("%p %p\n", pStream ,  ppPidl);
 295
 296     SHFree(*ppPidl);
 297     *ppPidl = NULL;
 298
 299     IStream_AddRef (pStream);
 300
 301     if (SUCCEEDED(IStream_Read(pStream, &wLen, 2, &dwBytesRead)))
 302     {
 303         TRACE("PIDL length is %d\n", wLen);
 304         if (wLen != 0)
 305         {
 306             *ppPidl = SHAlloc (wLen);
 307             if (SUCCEEDED(IStream_Read(pStream, *ppPidl , wLen, &dwBytesRead)))
 308             {
 309                 TRACE("Stream read OK\n");
 310                 ret = S_OK;
 311             }
 312             else
 313             {
 314                 WARN("reading pidl failed\n");
 315                 SHFree(*ppPidl);
 316                 *ppPidl = NULL;
 317             }
 318         }
 319         else
 320         {
 321             *ppPidl = NULL;
 322             ret = S_OK;
 323         }
 324     }
 325
 326     /* we are not yet fully compatible */
 327     if (*ppPidl && !pcheck(*ppPidl))
 328     {
 329         WARN("Check failed\n");
 330         SHFree(*ppPidl);
 331         *ppPidl = NULL;
 332     }
 333
 334     IStream_Release (pStream);
 335     TRACE("done\n");
 336     return ret;
 337 }
 338
 339 /*************************************************************************
 340  * ILSaveToStream (SHELL32.27)
 341  *
 342  * NOTES
 343  *   the first two bytes are the len, the pidl is following then
 344  */
 345 HRESULT WINAPI ILSaveToStream (IStream * pStream, LPCITEMIDLIST pPidl)
 346 {
 347     WORD        wLen = 0;
 348     HRESULT        ret = E_FAIL;
 349
 350     TRACE_(shell)("%p %p\n", pStream, pPidl);
 351
 352     IStream_AddRef (pStream);
 353
 354     wLen = ILGetSize(pPidl);
 355
 356     if (SUCCEEDED(IStream_Write(pStream, &wLen, 2, NULL)))
 357     {
 358         if (SUCCEEDED(IStream_Write(pStream, pPidl, wLen, NULL)))
 359             ret = S_OK;
 360     }
 361     IStream_Release (pStream);
 362
 363     return ret;
 364 }
 365
 366 /*************************************************************************
 367  * SHILCreateFromPath        [SHELL32.28]
 368  *
 369  * Create an ItemIDList from a path
 370  *
 371  * PARAMS
 372  *  path       [I]
 373  *  ppidl      [O]
 374  *  attributes [I/O] requested attributes on call and actual attributes when
 375  *                   the function returns
 376  *
 377  * RETURNS
 378  *  NO_ERROR if successful, or an OLE errer code otherwise
 379  *
 380  * NOTES
 381  *  Wrapper for IShellFolder_ParseDisplayName().
 382  */
 383 static HRESULT SHILCreateFromPathA(LPCSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 384 {
 385     WCHAR lpszDisplayName[MAX_PATH];
 386
 387     TRACE_(shell)("%s %p 0x%08x\n", path, ppidl, attributes ? *attributes : 0);
 388
 389     if (!MultiByteToWideChar(CP_ACP, 0, path, -1, lpszDisplayName, MAX_PATH))
 390         lpszDisplayName[MAX_PATH-1] = 0;
 391
 392     return SHILCreateFromPathW(lpszDisplayName, ppidl, attributes);
 393 }
 394
 395 HRESULT SHILCreateFromPathW(LPCWSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 396 {
 397     LPSHELLFOLDER sf;
 398     DWORD pchEaten;
 399     HRESULT ret = E_FAIL;
 400
 401     TRACE_(shell)("%s %p 0x%08x\n", debugstr_w(path), ppidl, attributes ? *attributes : 0);
 402
 403     if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 404     {
 405         ret = IShellFolder_ParseDisplayName(sf, 0, NULL, (LPWSTR)path, &pchEaten, ppidl, attributes);
 406         IShellFolder_Release(sf);
 407     }
 408     return ret;
 409 }
 410
 411 HRESULT WINAPI SHILCreateFromPathAW (LPCVOID path, LPITEMIDLIST * ppidl, DWORD * attributes)
 412 {
 413     if ( SHELL_OsIsUnicode())
 414         return SHILCreateFromPathW (path, ppidl, attributes);
 415     return SHILCreateFromPathA (path, ppidl, attributes);
 416 }
 417
 418 /*************************************************************************
 419  * SHCloneSpecialIDList      [SHELL32.89]
 420  *
 421  * Create an ItemIDList to one of the special folders.
 422
 423  * PARAMS
 424  *  hwndOwner    [in]
 425  *  nFolder      [in]    CSIDL_xxxxx
 426  *  fCreate      [in]    Create folder if it does not exist
 427  *
 428  * RETURNS
 429  *  Success: The newly created pidl
 430  *  Failure: NULL, if inputs are invalid.
 431  *
 432  * NOTES
 433  *  exported by ordinal.
 434  *  Caller is responsible for deallocating the returned ItemIDList with the
 435  *  shells IMalloc interface, aka ILFree.
 436  */
 437 LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner, DWORD nFolder, BOOL fCreate)
 438 {
 439     LPITEMIDLIST ppidl;
 440     TRACE_(shell)("(hwnd=%p,csidl=0x%x,%s).\n", hwndOwner, nFolder, fCreate ? "T" : "F");
 441
 442     if (fCreate)
 443         nFolder |= CSIDL_FLAG_CREATE;
 444
 445     SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
 446     return ppidl;
 447 }
 448
 449 /*************************************************************************
 450  * ILGlobalClone             [SHELL32.20]
 451  *
 452  * Clones an ItemIDList using Alloc.
 453  *
 454  * PARAMS
 455  *  pidl       [I]   ItemIDList to clone
 456  *
 457  * RETURNS
 458  *  Newly allocated ItemIDList.
 459  *
 460  * NOTES
 461  *  exported by ordinal.
 462  */
 463 LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
 464 {
 465     DWORD    len;
 466     LPITEMIDLIST  newpidl;
 467
 468     if (!pidl)
 469         return NULL;
 470
 471     len = ILGetSize(pidl);
 472     newpidl = Alloc(len);
 473     if (newpidl)
 474         memcpy(newpidl,pidl,len);
 475
 476     TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 477     pdump(pidl);
 478
 479     return newpidl;
 480 }
 481
 482 /*************************************************************************
 483  * ILIsEqual [SHELL32.21]
 484  *
 485  */
 486 BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 487 {
 488     char    szData1[MAX_PATH];
 489     char    szData2[MAX_PATH];
 490
 491     LPCITEMIDLIST pidltemp1 = pidl1;
 492     LPCITEMIDLIST pidltemp2 = pidl2;
 493
 494     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 495
 496     /*
 497      * Explorer reads from registry directly (StreamMRU),
 498      * so we can only check here
 499      */
 500     if (!pcheck(pidl1) || !pcheck (pidl2))
 501         return FALSE;
 502
 503     pdump (pidl1);
 504     pdump (pidl2);
 505
 506     if (!pidl1 || !pidl2)
 507         return FALSE;
 508
 509     while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 510     {
 511         _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 512         _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 513
 514         if (lstrcmpiA( szData1, szData2 ))
 515             return FALSE;
 516
 517         pidltemp1 = ILGetNext(pidltemp1);
 518         pidltemp2 = ILGetNext(pidltemp2);
 519     }
 520
 521     if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
 522         return TRUE;
 523
 524     return FALSE;
 525 }
 526
 527 /*************************************************************************
 528  * ILIsParent                [SHELL32.23]
 529  *
 530  * Verifies that pidlParent is indeed the (immediate) parent of pidlChild.
 531  *
 532  * PARAMS
 533  *  pidlParent [I]
 534  *  pidlChild  [I]
 535  *  bImmediate [I]   only return true if the parent is the direct parent
 536  *                   of the child
 537  *
 538  * RETURNS
 539  *  True if the parent ItemIDlist is a complete part of the child ItemIdList,
 540  *  False otherwise.
 541  *
 542  * NOTES
 543  *  parent = a/b, child = a/b/c -> true, c is in folder a/b
 544  *  child = a/b/c/d -> false if bImmediate is true, d is not in folder a/b
 545  *  child = a/b/c/d -> true if bImmediate is false, d is in a subfolder of a/b
 546  *  child = a/b -> false if bImmediate is true
 547  *  child = a/b -> true if bImmediate is false
 548  */
 549 BOOL WINAPI ILIsParent(LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
 550 {
 551     char    szData1[MAX_PATH];
 552     char    szData2[MAX_PATH];
 553     LPCITEMIDLIST pParent = pidlParent;
 554     LPCITEMIDLIST pChild = pidlChild;
 555
 556     TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
 557
 558     if (!pParent || !pChild)
 559         return FALSE;
 560
 561     while (pParent->mkid.cb && pChild->mkid.cb)
 562     {
 563         _ILSimpleGetText(pParent, szData1, MAX_PATH);
 564         _ILSimpleGetText(pChild, szData2, MAX_PATH);
 565
 566         if (lstrcmpiA( szData1, szData2 ))
 567             return FALSE;
 568
 569         pParent = ILGetNext(pParent);
 570         pChild = ILGetNext(pChild);
 571     }
 572
 573     /* child has shorter name than parent */
 574     if (pParent->mkid.cb)
 575         return FALSE;
 576
 577     /* not immediate descent */
 578     if ((!pChild->mkid.cb || ILGetNext(pChild)->mkid.cb) && bImmediate)
 579         return FALSE;
 580
 581     return TRUE;
 582 }
 583
 584 /*************************************************************************
 585  * ILFindChild               [SHELL32.24]
 586  *
 587  *  Compares elements from pidl1 and pidl2.
 588  *
 589  * PARAMS
 590  *  pidl1      [I]
 591  *  pidl2      [I]
 592  *
 593  * RETURNS
 594  *  pidl1 is desktop      pidl2
 595  *  pidl1 shorter pidl2   pointer to first different element of pidl2
 596  *                        if there was at least one equal element
 597  *  pidl2 shorter pidl1   0
 598  *  pidl2 equal pidl1     pointer to last 0x00-element of pidl2
 599  *
 600  * NOTES
 601  *  exported by ordinal.
 602  */
 603 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 604 {
 605     char    szData1[MAX_PATH];
 606     char    szData2[MAX_PATH];
 607
 608     LPCITEMIDLIST pidltemp1 = pidl1;
 609     LPCITEMIDLIST pidltemp2 = pidl2;
 610     LPCITEMIDLIST ret=NULL;
 611
 612     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 613
 614     /* explorer reads from registry directly (StreamMRU),
 615        so we can only check here */
 616     if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
 617         return FALSE;
 618
 619     pdump (pidl1);
 620     pdump (pidl2);
 621
 622     if (_ILIsDesktop(pidl1))
 623     {
 624         ret = pidl2;
 625     }
 626     else
 627     {
 628         while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 629         {
 630             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 631             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 632
 633             if (lstrcmpiA(szData1,szData2))
 634                 break;
 635
 636             pidltemp1 = ILGetNext(pidltemp1);
 637             pidltemp2 = ILGetNext(pidltemp2);
 638             ret = pidltemp2;
 639         }
 640
 641         if (pidltemp1->mkid.cb)
 642             ret = NULL; /* elements of pidl1 left*/
 643     }
 644     TRACE_(shell)("--- %p\n", ret);
 645     return (LPITEMIDLIST)ret; /* pidl 1 is shorter */
 646 }
 647
 648 /*************************************************************************
 649  * ILCombine                 [SHELL32.25]
 650  *
 651  * Concatenates two complex ItemIDLists.
 652  *
 653  * PARAMS
 654  *  pidl1      [I]   first complex ItemIDLists
 655  *  pidl2      [I]   complex ItemIDLists to append
 656  *
 657  * RETURNS
 658  *  if both pidl's == NULL      NULL
 659  *  if pidl1 == NULL            cloned pidl2
 660  *  if pidl2 == NULL            cloned pidl1
 661  *  otherwise new pidl with pidl2 appended to pidl1
 662  *
 663  * NOTES
 664  *  exported by ordinal.
 665  *  Does not destroy the passed in ItemIDLists!
 666  */
 667 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 668 {
 669     DWORD    len1,len2;
 670     LPITEMIDLIST  pidlNew;
 671
 672     TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
 673
 674     if (!pidl1 && !pidl2) return NULL;
 675
 676     pdump (pidl1);
 677     pdump (pidl2);
 678
 679     if (!pidl1)
 680     {
 681         pidlNew = ILClone(pidl2);
 682         return pidlNew;
 683     }
 684
 685     if (!pidl2)
 686     {
 687         pidlNew = ILClone(pidl1);
 688         return pidlNew;
 689     }
 690
 691     len1  = ILGetSize(pidl1)-2;
 692     len2  = ILGetSize(pidl2);
 693     pidlNew  = SHAlloc(len1+len2);
 694
 695     if (pidlNew)
 696     {
 697         memcpy(pidlNew,pidl1,len1);
 698         memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 699     }
 700
 701     /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 702     return pidlNew;
 703 }
 704
 705 /*************************************************************************
 706  *  SHGetRealIDL [SHELL32.98]
 707  *
 708  * NOTES
 709  */
 710 HRESULT WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPCITEMIDLIST pidlSimple, LPITEMIDLIST *pidlReal)
 711 {
 712     IDataObject* pDataObj;
 713     HRESULT hr;
 714
 715     hr = IShellFolder_GetUIObjectOf(lpsf, 0, 1, &pidlSimple,
 716                              &IID_IDataObject, 0, (LPVOID*)&pDataObj);
 717     if (SUCCEEDED(hr))
 718     {
 719         STGMEDIUM medium;
 720         FORMATETC fmt;
 721
 722         fmt.cfFormat = RegisterClipboardFormatW(CFSTR_SHELLIDLISTW);
 723         fmt.ptd = NULL;
 724         fmt.dwAspect = DVASPECT_CONTENT;
 725         fmt.lindex = -1;
 726         fmt.tymed = TYMED_HGLOBAL;
 727
 728         hr = IDataObject_GetData(pDataObj, &fmt, &medium);
 729
 730         IDataObject_Release(pDataObj);
 731
 732         if (SUCCEEDED(hr))
 733         {
 734             /*assert(pida->cidl==1);*/
 735             LPIDA pida = GlobalLock(medium.u.hGlobal);
 736
 737             LPCITEMIDLIST pidl_folder = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[0]);
 738             LPCITEMIDLIST pidl_child = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[1]);
 739
 740             *pidlReal = ILCombine(pidl_folder, pidl_child);
 741
 742             if (!*pidlReal)
 743                 hr = E_OUTOFMEMORY;
 744
 745             GlobalUnlock(medium.u.hGlobal);
 746             GlobalFree(medium.u.hGlobal);
 747         }
 748     }
 749
 750     return hr;
 751 }
 752
 753 /*************************************************************************
 754  *  SHLogILFromFSIL [SHELL32.95]
 755  *
 756  * NOTES
 757  *  pild = CSIDL_DESKTOP    ret = 0
 758  *  pild = CSIDL_DRIVES     ret = 0
 759  */
 760 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 761 {
 762     FIXME("(pidl=%p)\n",pidl);
 763
 764     pdump(pidl);
 765
 766     return 0;
 767 }
 768
 769 /*************************************************************************
 770  * ILGetSize                 [SHELL32.152]
 771  *
 772  * Gets the byte size of an ItemIDList including zero terminator
 773  *
 774  * PARAMS
 775  *  pidl       [I]   ItemIDList
 776  *
 777  * RETURNS
 778  *  size of pidl in bytes
 779  *
 780  * NOTES
 781  *  exported by ordinal
 782  */
 783 UINT WINAPI ILGetSize(LPCITEMIDLIST pidl)
 784 {
 785     LPCSHITEMID si = &(pidl->mkid);
 786     UINT len=0;
 787
 788     if (pidl)
 789     {
 790         while (si->cb)
 791         {
 792             len += si->cb;
 793             si  = (LPCSHITEMID)(((const BYTE*)si)+si->cb);
 794         }
 795         len += 2;
 796     }
 797     TRACE("pidl=%p size=%u\n",pidl, len);
 798     return len;
 799 }
 800
 801 /*************************************************************************
 802  * ILGetNext                 [SHELL32.153]
 803  *
 804  * Gets the next ItemID of an ItemIDList
 805  *
 806  * PARAMS
 807  *  pidl       [I]   ItemIDList
 808  *
 809  * RETURNS
 810  *  null -> null
 811  *  desktop -> null
 812  *  simple pidl -> pointer to 0x0000 element
 813  *
 814  * NOTES
 815  *  exported by ordinal.
 816  */
 817 LPITEMIDLIST WINAPI ILGetNext(LPCITEMIDLIST pidl)
 818 {
 819     WORD len;
 820
 821     TRACE("%p\n", pidl);
 822
 823     if (pidl)
 824     {
 825         len =  pidl->mkid.cb;
 826         if (len)
 827         {
 828             pidl = (LPCITEMIDLIST) (((const BYTE*)pidl)+len);
 829             TRACE("-- %p\n", pidl);
 830             return (LPITEMIDLIST)pidl;
 831         }
 832     }
 833     return NULL;
 834 }
 835
 836 /*************************************************************************
 837  * ILAppendID                [SHELL32.154]
 838  *
 839  * Adds the single ItemID item to the ItemIDList indicated by pidl.
 840  * If bEnd is FALSE, inserts the item in the front of the list,
 841  * otherwise it adds the item to the end. (???)
 842  *
 843  * PARAMS
 844  *  pidl       [I]   ItemIDList to extend
 845  *  item       [I]   ItemID to prepend/append
 846  *  bEnd       [I]   Indicates if the item should be appended
 847  *
 848  * NOTES
 849  *  Destroys the passed in idlist! (???)
 850  */
 851 LPITEMIDLIST WINAPI ILAppendID(LPITEMIDLIST pidl, LPCSHITEMID item, BOOL bEnd)
 852 {
 853     LPITEMIDLIST idlRet;
 854     LPCITEMIDLIST itemid = (LPCITEMIDLIST)item;
 855
 856     WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 857
 858     pdump (pidl);
 859     pdump (itemid);
 860
 861     if (_ILIsDesktop(pidl))
 862     {
 863         idlRet = ILClone(itemid);
 864         SHFree (pidl);
 865         return idlRet;
 866     }
 867
 868     if (bEnd)
 869         idlRet = ILCombine(pidl, itemid);
 870     else
 871         idlRet = ILCombine(itemid, pidl);
 872
 873     SHFree(pidl);
 874     return idlRet;
 875 }
 876
 877 /*************************************************************************
 878  * ILFree                    [SHELL32.155]
 879  *
 880  * Frees memory (if not NULL) allocated by SHMalloc allocator
 881  *
 882  * PARAMS
 883  *  pidl         [I]
 884  *
 885  * RETURNS
 886  *  Nothing
 887  *
 888  * NOTES
 889  *  exported by ordinal
 890  */
 891 void WINAPI ILFree(LPITEMIDLIST pidl)
 892 {
 893     TRACE("(pidl=%p)\n",pidl);
 894     SHFree(pidl);
 895 }
 896
 897 /*************************************************************************
 898  * ILGlobalFree              [SHELL32.156]
 899  *
 900  * Frees memory (if not NULL) allocated by Alloc allocator
 901  *
 902  * PARAMS
 903  *  pidl         [I]
 904  *
 905  * RETURNS
 906  *  Nothing
 907  *
 908  * NOTES
 909  *  exported by ordinal.
 910  */
 911 void WINAPI ILGlobalFree( LPITEMIDLIST pidl)
 912 {
 913     TRACE("%p\n", pidl);
 914
 915     Free(pidl);
 916 }
 917
 918 /*************************************************************************
 919  * ILCreateFromPathA         [SHELL32.189]
 920  *
 921  * Creates a complex ItemIDList from a path and returns it.
 922  *
 923  * PARAMS
 924  *  path         [I]
 925  *
 926  * RETURNS
 927  *  the newly created complex ItemIDList or NULL if failed
 928  *
 929  * NOTES
 930  *  exported by ordinal.
 931  */
 932 LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
 933 {
 934     LPITEMIDLIST pidlnew = NULL;
 935
 936     TRACE_(shell)("%s\n", debugstr_a(path));
 937
 938     if (SUCCEEDED(SHILCreateFromPathA(path, &pidlnew, NULL)))
 939         return pidlnew;
 940     return NULL;
 941 }
 942
 943 /*************************************************************************
 944  * ILCreateFromPathW         [SHELL32.190]
 945  *
 946  * See ILCreateFromPathA.
 947  */
 948 LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
 949 {
 950     LPITEMIDLIST pidlnew = NULL;
 951
 952     TRACE_(shell)("%s\n", debugstr_w(path));
 953
 954     if (SUCCEEDED(SHILCreateFromPathW(path, &pidlnew, NULL)))
 955         return pidlnew;
 956     return NULL;
 957 }
 958
 959 /*************************************************************************
 960  * ILCreateFromPath          [SHELL32.157]
 961  */
 962 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
 963 {
 964     if ( SHELL_OsIsUnicode())
 965         return ILCreateFromPathW (path);
 966     return ILCreateFromPathA (path);
 967 }
 968
 969 /*************************************************************************
 970  * _ILParsePathW             [internal]
 971  *
 972  * Creates an ItemIDList from a path and returns it.
 973  *
 974  * PARAMS
 975  *  path         [I]   path to parse and convert into an ItemIDList
 976  *  lpFindFile   [I]   pointer to buffer to initialize the FileSystem
 977  *                     Bind Data object with
 978  *  bBindCtx     [I]   indicates to create a BindContext and assign a
 979  *                     FileSystem Bind Data object
 980  *  ppidl        [O]   the newly create ItemIDList
 981  *  prgfInOut    [I/O] requested attributes on input and actual
 982  *                     attributes on return
 983  *
 984  * RETURNS
 985  *  NO_ERROR on success or an OLE error code
 986  *
 987  * NOTES
 988  *  If either lpFindFile is non-NULL or bBindCtx is TRUE, this function
 989  *  creates a BindContext object and assigns a FileSystem Bind Data object
 990  *  to it, passing the BindContext to IShellFolder_ParseDisplayName. Each
 991  *  IShellFolder uses that FileSystem Bind Data object of the BindContext
 992  *  to pass data about the current path element to the next object. This
 993  *  is used to avoid having to verify the current path element on disk, so
 994  *  that creating an ItemIDList from a nonexistent path still can work.
 995  */
 996 static HRESULT _ILParsePathW(LPCWSTR path, LPWIN32_FIND_DATAW lpFindFile,
 997                              BOOL bBindCtx, LPITEMIDLIST *ppidl, LPDWORD prgfInOut)
 998 {
 999     LPSHELLFOLDER pSF = NULL;
1000     LPBC pBC = NULL;
1001     HRESULT ret;
1002
1003     TRACE("%s %p %d (%p)->%p (%p)->0x%x\n", debugstr_w(path), lpFindFile, bBindCtx,
1004                                              ppidl, ppidl ? *ppidl : NULL,
1005                                              prgfInOut, prgfInOut ? *prgfInOut : 0);
1006
1007     ret = SHGetDesktopFolder(&pSF);
1008     if (FAILED(ret))
1009         return ret;
1010
1011     if (lpFindFile || bBindCtx)
1012         ret = IFileSystemBindData_Constructor(lpFindFile, &pBC);
1013
1014     if (SUCCEEDED(ret))
1015     {
1016         ret = IShellFolder_ParseDisplayName(pSF, 0, pBC, (LPOLESTR)path, NULL, ppidl, prgfInOut);
1017     }
1018
1019     if (pBC)
1020     {
1021         IBindCtx_Release(pBC);
1022         pBC = NULL;
1023     }
1024
1025     IShellFolder_Release(pSF);
1026
1027     if (FAILED(ret) && ppidl)
1028         *ppidl = NULL;
1029
1030     TRACE("%s %p 0x%x\n", debugstr_w(path), ppidl ? *ppidl : NULL, prgfInOut ? *prgfInOut : 0);
1031
1032     return ret;
1033 }
1034
1035 /*************************************************************************
1036  * SHSimpleIDListFromPath    [SHELL32.162]
1037  *
1038  * Creates a simple ItemIDList from a path and returns it. This function
1039  * does not fail on nonexistent paths.
1040  *
1041  * PARAMS
1042  *  path         [I]   path to parse and convert into an ItemIDList
1043  *
1044  * RETURNS
1045  *  the newly created simple ItemIDList
1046  *
1047  * NOTES
1048  *  Simple in the name does not mean a relative ItemIDList but rather a
1049  *  fully qualified list, where only the file name is filled in and the
1050  *  directory flag for those ItemID elements this is known about, eg.
1051  *  it is not the last element in the ItemIDList or the actual directory
1052  *  exists on disk.
1053  *  exported by ordinal.
1054  */
1055 LPITEMIDLIST SHSimpleIDListFromPathA(LPCSTR lpszPath)
1056 {
1057     LPITEMIDLIST pidl = NULL;
1058     LPWSTR wPath = NULL;
1059     int len;
1060
1061     TRACE("%s\n", debugstr_a(lpszPath));
1062
1063     if (lpszPath)
1064     {
1065         len = MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, NULL, 0);
1066         wPath = heap_alloc(len * sizeof(WCHAR));
1067         MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, wPath, len);
1068     }
1069
1070     _ILParsePathW(wPath, NULL, TRUE, &pidl, NULL);
1071
1072     heap_free(wPath);
1073     TRACE("%s %p\n", debugstr_a(lpszPath), pidl);
1074     return pidl;
1075 }
1076
1077 LPITEMIDLIST SHSimpleIDListFromPathW(LPCWSTR lpszPath)
1078 {
1079     LPITEMIDLIST pidl = NULL;
1080
1081     TRACE("%s\n", debugstr_w(lpszPath));
1082
1083     _ILParsePathW(lpszPath, NULL, TRUE, &pidl, NULL);
1084     TRACE("%s %p\n", debugstr_w(lpszPath), pidl);
1085     return pidl;
1086 }
1087
1088 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW(LPCVOID lpszPath)
1089 {
1090     if ( SHELL_OsIsUnicode())
1091         return SHSimpleIDListFromPathW (lpszPath);
1092     return SHSimpleIDListFromPathA (lpszPath);
1093 }
1094
1095 /*************************************************************************
1096  * SHGetDataFromIDListA [SHELL32.247]
1097  *
1098  * NOTES
1099  *  the pidl can be a simple one. since we can't get the path out of the pidl
1100  *  we have to take all data from the pidl
1101  */
1102 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1103                                     int nFormat, LPVOID dest, int len)
1104 {
1105     LPSTR filename, shortname;
1106     WIN32_FIND_DATAA * pfd;
1107
1108     TRACE_(shell)("%p, %p, %d, %p, %d.\n", psf, pidl, nFormat, dest, len);
1109
1110     pdump(pidl);
1111     if (!psf || !dest)
1112         return E_INVALIDARG;
1113
1114     switch (nFormat)
1115     {
1116     case SHGDFIL_FINDDATA:
1117         pfd = dest;
1118
1119         if (_ILIsDrive(pidl) || _ILIsSpecialFolder(pidl))
1120             return E_INVALIDARG;
1121
1122         if (len < sizeof(WIN32_FIND_DATAA))
1123             return E_INVALIDARG;
1124
1125         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1126         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1127         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1128         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1129
1130         filename = _ILGetTextPointer(pidl);
1131         shortname = _ILGetSTextPointer(pidl);
1132
1133         if (filename)
1134             lstrcpynA(pfd->cFileName, filename, sizeof(pfd->cFileName));
1135         else
1136             pfd->cFileName[0] = '\0';
1137
1138         if (shortname)
1139             lstrcpynA(pfd->cAlternateFileName, shortname, sizeof(pfd->cAlternateFileName));
1140         else
1141             pfd->cAlternateFileName[0] = '\0';
1142         return S_OK;
1143
1144     case SHGDFIL_NETRESOURCE:
1145     case SHGDFIL_DESCRIPTIONID:
1146         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1147         break;
1148
1149     default:
1150         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1151     }
1152
1153     return E_INVALIDARG;
1154 }
1155
1156 /*************************************************************************
1157  * SHGetDataFromIDListW [SHELL32.248]
1158  *
1159  */
1160 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1161                                     int nFormat, LPVOID dest, int len)
1162 {
1163     LPSTR filename, shortname;
1164     WIN32_FIND_DATAW * pfd = dest;
1165
1166     TRACE_(shell)("%p, %p, %d, %p, %d.\n", psf, pidl, nFormat, dest, len);
1167
1168     pdump(pidl);
1169
1170     if (!psf || !dest)
1171         return E_INVALIDARG;
1172
1173     switch (nFormat)
1174     {
1175     case SHGDFIL_FINDDATA:
1176         pfd = dest;
1177
1178         if (_ILIsDrive(pidl))
1179             return E_INVALIDARG;
1180
1181         if (len < sizeof(WIN32_FIND_DATAW))
1182             return E_INVALIDARG;
1183
1184         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAW));
1185         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1186         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1187         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1188
1189         filename = _ILGetTextPointer(pidl);
1190         shortname = _ILGetSTextPointer(pidl);
1191
1192         if (!filename)
1193             pfd->cFileName[0] = '\0';
1194         else if (!MultiByteToWideChar(CP_ACP, 0, filename, -1, pfd->cFileName, MAX_PATH))
1195             pfd->cFileName[MAX_PATH-1] = 0;
1196
1197         if (!shortname)
1198             pfd->cAlternateFileName[0] = '\0';
1199         else if (!MultiByteToWideChar(CP_ACP, 0, shortname, -1, pfd->cAlternateFileName, 14))
1200             pfd->cAlternateFileName[13] = 0;
1201         return S_OK;
1202
1203     case SHGDFIL_NETRESOURCE:
1204     case SHGDFIL_DESCRIPTIONID:
1205         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1206         break;
1207
1208     default:
1209         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1210     }
1211
1212     return E_INVALIDARG;
1213 }
1214
1215 /*************************************************************************
1216  * SHGetPathFromIDListA        [SHELL32.@][NT 4.0: SHELL32.220]
1217  *
1218  * PARAMETERS
1219  *  pidl,   [IN] pidl
1220  *  pszPath [OUT] path
1221  *
1222  * RETURNS
1223  *  path from a passed PIDL.
1224  *
1225  * NOTES
1226  *    NULL returns FALSE
1227  *    desktop pidl gives path to desktop directory back
1228  *    special pidls returning FALSE
1229  */
1230 BOOL WINAPI SHGetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath)
1231 {
1232     WCHAR wszPath[MAX_PATH];
1233     BOOL bSuccess;
1234
1235     bSuccess = SHGetPathFromIDListW(pidl, wszPath);
1236     WideCharToMultiByte(CP_ACP, 0, wszPath, -1, pszPath, MAX_PATH, NULL, NULL);
1237
1238     return bSuccess;
1239 }
1240
1241 /*************************************************************************
1242  * SHGetPathFromIDListW             [SHELL32.@]
1243  *
1244  * See SHGetPathFromIDListA.
1245  */
1246 BOOL WINAPI SHGetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath)
1247 {
1248     return SHGetPathFromIDListEx(pidl, pszPath, MAX_PATH, 0);
1249 }
1250
1251 /*************************************************************************
1252  * SHGetPathFromIDListEx             [SHELL32.@]
1253  */
1254 BOOL WINAPI SHGetPathFromIDListEx(LPCITEMIDLIST pidl, WCHAR *path, DWORD path_size, GPFIDL_FLAGS flags)
1255 {
1256     HRESULT hr;
1257     LPCITEMIDLIST pidlLast;
1258     LPSHELLFOLDER psfFolder;
1259     DWORD dwAttributes;
1260     STRRET strret;
1261
1262     TRACE_(shell)("(pidl=%p,%p,%u,%x)\n", pidl, path, path_size, flags);
1263     pdump(pidl);
1264
1265     if (flags != GPFIDL_DEFAULT)
1266         FIXME("Unsupported flags %x\n", flags);
1267
1268     *path = '\0';
1269     if (!pidl)
1270         return FALSE;
1271
1272     hr = SHBindToParent(pidl, &IID_IShellFolder, (VOID**)&psfFolder, &pidlLast);
1273     if (FAILED(hr)) return FALSE;
1274
1275     dwAttributes = SFGAO_FILESYSTEM;
1276     hr = IShellFolder_GetAttributesOf(psfFolder, 1, &pidlLast, &dwAttributes);
1277     if (FAILED(hr) || !(dwAttributes & SFGAO_FILESYSTEM)) {
1278         IShellFolder_Release(psfFolder);
1279         return FALSE;
1280     }
1281
1282     hr = IShellFolder_GetDisplayNameOf(psfFolder, pidlLast, SHGDN_FORPARSING, &strret);
1283     IShellFolder_Release(psfFolder);
1284     if (FAILED(hr)) return FALSE;
1285
1286     hr = StrRetToBufW(&strret, pidlLast, path, path_size);
1287
1288     TRACE_(shell)("-- %s, 0x%08x\n",debugstr_w(path), hr);
1289     return SUCCEEDED(hr);
1290 }
1291
1292 /*************************************************************************
1293  *    SHBindToParent        [shell version 5.0]
1294  */
1295 HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
1296 {
1297     IShellFolder    * psfDesktop;
1298     HRESULT         hr=E_FAIL;
1299
1300     TRACE_(shell)("pidl=%p\n", pidl);
1301     pdump(pidl);
1302
1303     if (!pidl || !ppv)
1304         return E_INVALIDARG;
1305
1306     *ppv = NULL;
1307     if (ppidlLast)
1308         *ppidlLast = NULL;
1309
1310     hr = SHGetDesktopFolder(&psfDesktop);
1311     if (FAILED(hr))
1312         return hr;
1313
1314     if (_ILIsPidlSimple(pidl))
1315     {
1316         /* we are on desktop level */
1317         hr = IShellFolder_QueryInterface(psfDesktop, riid, ppv);
1318     }
1319     else
1320     {
1321         LPITEMIDLIST pidlParent = ILClone(pidl);
1322         ILRemoveLastID(pidlParent);
1323         hr = IShellFolder_BindToObject(psfDesktop, pidlParent, NULL, riid, ppv);
1324         SHFree (pidlParent);
1325     }
1326
1327     IShellFolder_Release(psfDesktop);
1328
1329     if (SUCCEEDED(hr) && ppidlLast)
1330         *ppidlLast = ILFindLastID(pidl);
1331
1332     TRACE_(shell)("-- psf=%p pidl=%p ret=0x%08x\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
1333     return hr;
1334 }
1335
1336 /*************************************************************************
1337  * SHParseDisplayName             [SHELL32.@]
1338  */
1339 HRESULT WINAPI SHParseDisplayName(LPCWSTR name, IBindCtx *bindctx, LPITEMIDLIST *pidlist,
1340                                   SFGAOF attr_in, SFGAOF *attr_out)
1341 {
1342     IShellFolder *desktop;
1343     HRESULT hr;
1344
1345     TRACE("%s %p %p %d %p\n", debugstr_w(name), bindctx, pidlist, attr_in, attr_out);
1346
1347     *pidlist = NULL;
1348
1349     if (!name) return E_INVALIDARG;
1350
1351     hr = SHGetDesktopFolder(&desktop);
1352     if (hr != S_OK) return hr;
1353
1354     hr = IShellFolder_ParseDisplayName(desktop, NULL, bindctx, (LPWSTR)name, NULL, pidlist, &attr_in);
1355     if (attr_out) *attr_out = attr_in;
1356
1357     IShellFolder_Release(desktop);
1358
1359     return hr;
1360 }
1361
1362 /*************************************************************************
1363  * SHGetNameFromIDList             [SHELL32.@]
1364  */
1365 HRESULT WINAPI SHGetNameFromIDList(PCIDLIST_ABSOLUTE pidl, SIGDN sigdnName, PWSTR *ppszName)
1366 {
1367     IShellFolder *psfparent;
1368     LPCITEMIDLIST child_pidl;
1369     STRRET disp_name;
1370     HRESULT ret;
1371
1372     TRACE("%p 0x%08x %p\n", pidl, sigdnName, ppszName);
1373
1374     *ppszName = NULL;
1375     ret = SHBindToParent(pidl, &IID_IShellFolder, (void**)&psfparent, &child_pidl);
1376     if(SUCCEEDED(ret))
1377     {
1378         switch(sigdnName)
1379         {
1380                                                 /* sigdnName & 0xffff */
1381         case SIGDN_NORMALDISPLAY:               /* SHGDN_NORMAL */
1382         case SIGDN_PARENTRELATIVEPARSING:       /* SHGDN_INFOLDER | SHGDN_FORPARSING */
1383         case SIGDN_PARENTRELATIVEEDITING:       /* SHGDN_INFOLDER | SHGDN_FOREDITING */
1384         case SIGDN_DESKTOPABSOLUTEPARSING:      /* SHGDN_FORPARSING */
1385         case SIGDN_DESKTOPABSOLUTEEDITING:      /* SHGDN_FOREDITING | SHGDN_FORADDRESSBAR*/
1386         case SIGDN_PARENTRELATIVEFORADDRESSBAR: /* SIGDN_INFOLDER | SHGDN_FORADDRESSBAR */
1387         case SIGDN_PARENTRELATIVE:              /* SIGDN_INFOLDER */
1388
1389             disp_name.uType = STRRET_WSTR;
1390             ret = IShellFolder_GetDisplayNameOf(psfparent, child_pidl,
1391                                                 sigdnName & 0xffff,
1392                                                 &disp_name);
1393             if(SUCCEEDED(ret))
1394                 ret = StrRetToStrW(&disp_name, pidl, ppszName);
1395
1396             break;
1397
1398         case SIGDN_FILESYSPATH:
1399             *ppszName = CoTaskMemAlloc(sizeof(WCHAR)*MAX_PATH);
1400             if(SHGetPathFromIDListW(pidl, *ppszName))
1401             {
1402                 TRACE("Got string %s\n", debugstr_w(*ppszName));
1403                 ret = S_OK;
1404             }
1405             else
1406             {
1407                 CoTaskMemFree(*ppszName);
1408                 ret = E_INVALIDARG;
1409             }
1410             break;
1411
1412         case SIGDN_URL:
1413         default:
1414             FIXME("Unsupported SIGDN %x\n", sigdnName);
1415             ret = E_FAIL;
1416         }
1417
1418         IShellFolder_Release(psfparent);
1419     }
1420     return ret;
1421 }
1422
1423 /*************************************************************************
1424  * SHGetIDListFromObject             [SHELL32.@]
1425  */
1426 HRESULT WINAPI SHGetIDListFromObject(IUnknown *punk, PIDLIST_ABSOLUTE *ppidl)
1427 {
1428     IPersistIDList *ppersidl;
1429     IPersistFolder2 *ppf2;
1430     IDataObject *pdo;
1431     IFolderView *pfv;
1432     HRESULT ret;
1433
1434     if(!punk)
1435         return E_NOINTERFACE;
1436
1437     *ppidl = NULL;
1438
1439     /* Try IPersistIDList */
1440     ret = IUnknown_QueryInterface(punk, &IID_IPersistIDList, (void**)&ppersidl);
1441     if(SUCCEEDED(ret))
1442     {
1443         TRACE("IPersistIDList (%p)\n", ppersidl);
1444         ret = IPersistIDList_GetIDList(ppersidl, ppidl);
1445         IPersistIDList_Release(ppersidl);
1446         if(SUCCEEDED(ret))
1447             return ret;
1448     }
1449
1450     /* Try IPersistFolder2 */
1451     ret = IUnknown_QueryInterface(punk, &IID_IPersistFolder2, (void**)&ppf2);
1452     if(SUCCEEDED(ret))
1453     {
1454         TRACE("IPersistFolder2 (%p)\n", ppf2);
1455         ret = IPersistFolder2_GetCurFolder(ppf2, ppidl);
1456         IPersistFolder2_Release(ppf2);
1457         if(SUCCEEDED(ret))
1458             return ret;
1459     }
1460
1461     /* Try IDataObject */
1462     ret = IUnknown_QueryInterface(punk, &IID_IDataObject, (void**)&pdo);
1463     if(SUCCEEDED(ret))
1464     {
1465         IShellItem *psi;
1466         TRACE("IDataObject (%p)\n", pdo);
1467         ret = SHGetItemFromDataObject(pdo, DOGIF_ONLY_IF_ONE,
1468                                       &IID_IShellItem, (void**)&psi);
1469         if(SUCCEEDED(ret))
1470         {
1471             ret = SHGetIDListFromObject((IUnknown*)psi, ppidl);
1472             IShellItem_Release(psi);
1473         }
1474         IDataObject_Release(pdo);
1475
1476         if(SUCCEEDED(ret))
1477             return ret;
1478     }
1479
1480     /* Try IFolderView */
1481     ret = IUnknown_QueryInterface(punk, &IID_IFolderView, (void**)&pfv);
1482     if(SUCCEEDED(ret))
1483     {
1484         IShellFolder *psf;
1485         TRACE("IFolderView (%p)\n", pfv);
1486         ret = IFolderView_GetFolder(pfv, &IID_IShellFolder, (void**)&psf);
1487         if(SUCCEEDED(ret))
1488         {
1489             /* We might be able to get IPersistFolder2 from a shellfolder. */
1490             ret = SHGetIDListFromObject((IUnknown*)psf, ppidl);
1491             IShellFolder_Release(psf);
1492         }
1493         IFolderView_Release(pfv);
1494         return ret;
1495     }
1496
1497     return ret;
1498 }
1499
1500 /**************************************************************************
1501  *
1502  *        internal functions
1503  *
1504  *    ### 1. section creating pidls ###
1505  *
1506  *************************************************************************
1507  */
1508
1509 /* Basic PIDL constructor.  Allocates size + 5 bytes, where:
1510  * - two bytes are SHITEMID.cb
1511  * - one byte is PIDLDATA.type
1512  * - two bytes are the NULL PIDL terminator
1513  * Sets type of the returned PIDL to type.
1514  */
1515 static LPITEMIDLIST _ILAlloc(PIDLTYPE type, unsigned int size)
1516 {
1517     LPITEMIDLIST pidlOut = NULL;
1518
1519     pidlOut = SHAlloc(size + 5);
1520     if(pidlOut)
1521     {
1522         LPPIDLDATA pData;
1523         LPITEMIDLIST pidlNext;
1524
1525         ZeroMemory(pidlOut, size + 5);
1526         pidlOut->mkid.cb = size + 3;
1527
1528         pData = _ILGetDataPointer(pidlOut);
1529         if (pData)
1530             pData->type = type;
1531
1532         pidlNext = ILGetNext(pidlOut);
1533         if (pidlNext)
1534             pidlNext->mkid.cb = 0x00;
1535         TRACE("-- (pidl=%p, size=%u)\n", pidlOut, size);
1536     }
1537
1538     return pidlOut;
1539 }
1540
1541 LPITEMIDLIST _ILCreateDesktop(void)
1542 {
1543     LPITEMIDLIST ret;
1544
1545     TRACE("()\n");
1546     ret = SHAlloc(2);
1547     if (ret)
1548         ret->mkid.cb = 0;
1549     return ret;
1550 }
1551
1552 LPITEMIDLIST _ILCreateMyComputer(void)
1553 {
1554     TRACE("()\n");
1555     return _ILCreateGuid(PT_GUID, &CLSID_MyComputer);
1556 }
1557
1558 LPITEMIDLIST _ILCreateMyDocuments(void)
1559 {
1560     TRACE("()\n");
1561     return _ILCreateGuid(PT_GUID, &CLSID_MyDocuments);
1562 }
1563
1564 LPITEMIDLIST _ILCreateIExplore(void)
1565 {
1566     TRACE("()\n");
1567     return _ILCreateGuid(PT_GUID, &CLSID_Internet);
1568 }
1569
1570 LPITEMIDLIST _ILCreateControlPanel(void)
1571 {
1572     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1573
1574     TRACE("()\n");
1575     if (parent)
1576     {
1577         LPITEMIDLIST cpl = _ILCreateGuid(PT_SHELLEXT, &CLSID_ControlPanel);
1578
1579         if (cpl)
1580         {
1581             ret = ILCombine(parent, cpl);
1582             SHFree(cpl);
1583         }
1584         SHFree(parent);
1585     }
1586     return ret;
1587 }
1588
1589 LPITEMIDLIST _ILCreatePrinters(void)
1590 {
1591     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1592
1593     TRACE("()\n");
1594     if (parent)
1595     {
1596         LPITEMIDLIST printers = _ILCreateGuid(PT_YAGUID, &CLSID_Printers);
1597
1598         if (printers)
1599         {
1600             ret = ILCombine(parent, printers);
1601             SHFree(printers);
1602         }
1603         SHFree(parent);
1604     }
1605     return ret;
1606 }
1607
1608 LPITEMIDLIST _ILCreateNetwork(void)
1609 {
1610     TRACE("()\n");
1611     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1612 }
1613
1614 LPITEMIDLIST _ILCreateBitBucket(void)
1615 {
1616     TRACE("()\n");
1617     return _ILCreateGuid(PT_GUID, &CLSID_RecycleBin);
1618 }
1619
1620 LPITEMIDLIST _ILCreateNetHood(void)
1621 {
1622     TRACE("()\n");
1623     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1624 }
1625
1626 LPITEMIDLIST _ILCreateGuid(PIDLTYPE type, REFIID guid)
1627 {
1628     LPITEMIDLIST pidlOut;
1629
1630     if (type == PT_SHELLEXT || type == PT_GUID || type == PT_YAGUID)
1631     {
1632         pidlOut = _ILAlloc(type, sizeof(GUIDStruct));
1633         if (pidlOut)
1634         {
1635             LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1636
1637             pData->u.guid.guid = *guid;
1638             TRACE("-- create GUID-pidl %s\n",
1639                   debugstr_guid(&(pData->u.guid.guid)));
1640         }
1641     }
1642     else
1643     {
1644         WARN("%d: invalid type for GUID\n", type);
1645         pidlOut = NULL;
1646     }
1647     return pidlOut;
1648 }
1649
1650 LPITEMIDLIST _ILCreateGuidFromStrA(LPCSTR szGUID)
1651 {
1652     IID iid;
1653
1654     if (FAILED(SHCLSIDFromStringA(szGUID, &iid)))
1655     {
1656         ERR("%s is not a GUID\n", szGUID);
1657         return NULL;
1658     }
1659     return _ILCreateGuid(PT_GUID, &iid);
1660 }
1661
1662 LPITEMIDLIST _ILCreateGuidFromStrW(LPCWSTR szGUID)
1663 {
1664     IID iid;
1665
1666     if (FAILED(SHCLSIDFromStringW(szGUID, &iid)))
1667     {
1668         ERR("%s is not a GUID\n", debugstr_w(szGUID));
1669         return NULL;
1670     }
1671     return _ILCreateGuid(PT_GUID, &iid);
1672 }
1673
1674 LPITEMIDLIST _ILCreateFromFindDataW( const WIN32_FIND_DATAW *wfd )
1675 {
1676     char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1677     DWORD   len, len1, wlen, alen;
1678     LPITEMIDLIST pidl;
1679     PIDLTYPE type;
1680
1681     if (!wfd)
1682         return NULL;
1683
1684     TRACE("(%s, %s)\n",debugstr_w(wfd->cAlternateFileName), debugstr_w(wfd->cFileName));
1685
1686     /* prepare buffer with both names */
1687     len = WideCharToMultiByte(CP_ACP,0,wfd->cFileName,-1,buff,MAX_PATH,NULL,NULL);
1688     len1 = WideCharToMultiByte(CP_ACP,0,wfd->cAlternateFileName,-1, buff+len, sizeof(buff)-len, NULL, NULL);
1689     alen = len + len1;
1690
1691     type = (wfd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? PT_FOLDER : PT_VALUE;
1692
1693     wlen = lstrlenW(wfd->cFileName) + 1;
1694     pidl = _ILAlloc(type, FIELD_OFFSET(FileStruct, szNames[alen + (alen & 1)]) +
1695                     FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD));
1696     if (pidl)
1697     {
1698         LPPIDLDATA pData = _ILGetDataPointer(pidl);
1699         FileStruct *fs = &pData->u.file;
1700         FileStructW *fsw;
1701         WORD *pOffsetW;
1702
1703         FileTimeToDosDateTime( &wfd->ftLastWriteTime, &fs->uFileDate, &fs->uFileTime);
1704         fs->dwFileSize = wfd->nFileSizeLow;
1705         fs->uFileAttribs = wfd->dwFileAttributes;
1706         memcpy(fs->szNames, buff, alen);
1707
1708         fsw = (FileStructW*)(pData->u.file.szNames + alen + (alen & 0x1));
1709         fsw->cbLen = FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD);
1710         FileTimeToDosDateTime( &wfd->ftCreationTime, &fsw->uCreationDate, &fsw->uCreationTime);
1711         FileTimeToDosDateTime( &wfd->ftLastAccessTime, &fsw->uLastAccessDate, &fsw->uLastAccessTime);
1712         memcpy(fsw->wszName, wfd->cFileName, wlen * sizeof(WCHAR));
1713
1714         pOffsetW = (WORD*)((LPBYTE)pidl + pidl->mkid.cb - sizeof(WORD));
1715         *pOffsetW = (LPBYTE)fsw - (LPBYTE)pidl;
1716         TRACE("-- Set Value: %s\n",debugstr_w(fsw->wszName));
1717     }
1718     return pidl;
1719
1720 }
1721
1722 HRESULT _ILCreateFromPathW(LPCWSTR szPath, LPITEMIDLIST* ppidl)
1723 {
1724     HANDLE hFile;
1725     WIN32_FIND_DATAW stffile;
1726
1727     if (!ppidl)
1728         return E_INVALIDARG;
1729
1730     hFile = FindFirstFileW(szPath, &stffile);
1731     if (hFile == INVALID_HANDLE_VALUE)
1732         return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
1733
1734     FindClose(hFile);
1735
1736     *ppidl = _ILCreateFromFindDataW(&stffile);
1737
1738     return *ppidl ? S_OK : E_OUTOFMEMORY;
1739 }
1740
1741 LPITEMIDLIST _ILCreateDrive(LPCWSTR lpszNew)
1742 {
1743     LPITEMIDLIST pidlOut;
1744
1745     TRACE("(%s)\n",debugstr_w(lpszNew));
1746
1747     pidlOut = _ILAlloc(PT_DRIVE, sizeof(DriveStruct));
1748     if (pidlOut)
1749     {
1750         LPSTR pszDest;
1751
1752         pszDest = _ILGetTextPointer(pidlOut);
1753         if (pszDest)
1754         {
1755             strcpy(pszDest, "x:\\");
1756             pszDest[0]=toupperW(lpszNew[0]);
1757             TRACE("-- create Drive: %s\n", debugstr_a(pszDest));
1758         }
1759     }
1760     return pidlOut;
1761 }
1762
1763 LPITEMIDLIST _ILCreateEntireNetwork(void)
1764 {
1765     LPITEMIDLIST pidlOut;
1766
1767     TRACE("\n");
1768
1769     pidlOut = _ILAlloc(PT_NETWORK, FIELD_OFFSET(PIDLDATA, u.network.szNames[sizeof("Entire Network")]));
1770     if (pidlOut)
1771     {
1772         LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1773
1774         pData->u.network.dummy = 0;
1775         strcpy(pData->u.network.szNames, "Entire Network");
1776     }
1777     return pidlOut;
1778 }
1779
1780 /**************************************************************************
1781  *  _ILGetDrive()
1782  *
1783  *  Gets the text for the drive eg. 'c:\'
1784  *
1785  * RETURNS
1786  *  strlen (lpszText)
1787  */
1788 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1789 {
1790     TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1791
1792     if(_ILIsMyComputer(pidl))
1793         pidl = ILGetNext(pidl);
1794
1795     if (pidl && _ILIsDrive(pidl))
1796         return _ILSimpleGetText(pidl, pOut, uSize);
1797
1798     return 0;
1799 }
1800
1801 /**************************************************************************
1802  *
1803  *    ### 2. section testing pidls ###
1804  *
1805  **************************************************************************
1806  *  _ILIsUnicode()
1807  *  _ILIsDesktop()
1808  *  _ILIsMyComputer()
1809  *  _ILIsSpecialFolder()
1810  *  _ILIsDrive()
1811  *  _ILIsFolder()
1812  *  _ILIsValue()
1813  *  _ILIsPidlSimple()
1814  */
1815 BOOL _ILIsUnicode(LPCITEMIDLIST pidl)
1816 {
1817     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1818
1819     TRACE("(%p)\n",pidl);
1820
1821     return (pidl && lpPData && PT_VALUEW == lpPData->type);
1822 }
1823
1824 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1825 {
1826     TRACE("(%p)\n",pidl);
1827
1828     return !pidl || !pidl->mkid.cb;
1829 }
1830
1831 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1832 {
1833     REFIID iid = _ILGetGUIDPointer(pidl);
1834
1835     TRACE("(%p)\n",pidl);
1836
1837     if (iid)
1838         return IsEqualIID(iid, &CLSID_MyComputer);
1839     return FALSE;
1840 }
1841
1842 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1843 {
1844     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1845
1846     TRACE("(%p)\n",pidl);
1847
1848     return (pidl && ( (lpPData && (PT_GUID== lpPData->type || PT_SHELLEXT== lpPData->type || PT_YAGUID == lpPData->type)) ||
1849               (pidl && pidl->mkid.cb == 0x00)
1850             ));
1851 }
1852
1853 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1854 {
1855     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1856
1857     TRACE("(%p)\n",pidl);
1858
1859     return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1860                     PT_DRIVE1 == lpPData->type ||
1861                     PT_DRIVE2 == lpPData->type ||
1862                     PT_DRIVE3 == lpPData->type));
1863 }
1864
1865 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1866 {
1867     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1868
1869     TRACE("(%p)\n",pidl);
1870
1871     return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1872 }
1873
1874 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1875 {
1876     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1877
1878     TRACE("(%p)\n",pidl);
1879
1880     return (pidl && lpPData && PT_VALUE == lpPData->type);
1881 }
1882
1883 BOOL _ILIsCPanelStruct(LPCITEMIDLIST pidl)
1884 {
1885     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1886
1887     TRACE("(%p)\n",pidl);
1888
1889     return (pidl && lpPData && (lpPData->type == 0));
1890 }
1891
1892 /**************************************************************************
1893  *    _ILIsPidlSimple
1894  */
1895 BOOL _ILIsPidlSimple(LPCITEMIDLIST pidl)
1896 {
1897     BOOL ret = TRUE;
1898
1899     if(! _ILIsDesktop(pidl))    /* pidl=NULL or mkid.cb=0 */
1900     {
1901         WORD len = pidl->mkid.cb;
1902         LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((const BYTE*)pidl) + len );
1903
1904         if (pidlnext->mkid.cb)
1905             ret = FALSE;
1906     }
1907
1908     TRACE("%s\n", ret ? "Yes" : "No");
1909     return ret;
1910 }
1911
1912 /**************************************************************************
1913  *
1914  *    ### 3. section getting values from pidls ###
1915  */
1916
1917  /**************************************************************************
1918  *  _ILSimpleGetText
1919  *
1920  * gets the text for the first item in the pidl (eg. simple pidl)
1921  *
1922  * returns the length of the string
1923  */
1924 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
1925 {
1926     DWORD        dwReturn=0;
1927     LPSTR        szSrc;
1928     LPWSTR       szSrcW;
1929     GUID const * riid;
1930     char szTemp[MAX_PATH];
1931
1932     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1933
1934     if (!pidl)
1935         return 0;
1936
1937     if (szOut)
1938         *szOut = 0;
1939
1940     if (_ILIsDesktop(pidl))
1941     {
1942         /* desktop */
1943         if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1944         {
1945             if (szOut)
1946                 lstrcpynA(szOut, szTemp, uOutSize);
1947
1948             dwReturn = strlen (szTemp);
1949         }
1950     }
1951     else if (( szSrc = _ILGetTextPointer(pidl) ))
1952     {
1953         /* filesystem */
1954         if (szOut)
1955             lstrcpynA(szOut, szSrc, uOutSize);
1956
1957         dwReturn = strlen(szSrc);
1958     }
1959     else if (( szSrcW = _ILGetTextPointerW(pidl) ))
1960     {
1961         /* unicode filesystem */
1962         WideCharToMultiByte(CP_ACP,0,szSrcW, -1, szTemp, MAX_PATH, NULL, NULL);
1963
1964         if (szOut)
1965             lstrcpynA(szOut, szTemp, uOutSize);
1966
1967         dwReturn = strlen (szTemp);
1968     }
1969     else if (( riid = _ILGetGUIDPointer(pidl) ))
1970     {
1971         /* special folder */
1972         if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
1973         {
1974             if (szOut)
1975                 lstrcpynA(szOut, szTemp, uOutSize);
1976
1977             dwReturn = strlen (szTemp);
1978         }
1979     }
1980     else
1981     {
1982         ERR("-- no text\n");
1983     }
1984
1985     TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_a(szOut),dwReturn);
1986     return dwReturn;
1987 }
1988
1989  /**************************************************************************
1990  *  _ILSimpleGetTextW
1991  *
1992  * gets the text for the first item in the pidl (eg. simple pidl)
1993  *
1994  * returns the length of the string
1995  */
1996 DWORD _ILSimpleGetTextW (LPCITEMIDLIST pidl, LPWSTR szOut, UINT uOutSize)
1997 {
1998     DWORD   dwReturn;
1999     FileStructW *pFileStructW = _ILGetFileStructW(pidl);
2000
2001     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
2002
2003     if (pFileStructW) {
2004         lstrcpynW(szOut, pFileStructW->wszName, uOutSize);
2005         dwReturn = lstrlenW(pFileStructW->wszName);
2006     } else {
2007         GUID const * riid;
2008         WCHAR szTemp[MAX_PATH];
2009         LPSTR szSrc;
2010         LPWSTR szSrcW;
2011         dwReturn=0;
2012
2013         if (!pidl)
2014             return 0;
2015
2016         if (szOut)
2017             *szOut = 0;
2018
2019         if (_ILIsDesktop(pidl))
2020         {
2021             /* desktop */
2022             if (HCR_GetClassNameW(&CLSID_ShellDesktop, szTemp, MAX_PATH))
2023             {
2024                 if (szOut)
2025                     lstrcpynW(szOut, szTemp, uOutSize);
2026
2027                 dwReturn = lstrlenW (szTemp);
2028             }
2029         }
2030         else if (( szSrcW = _ILGetTextPointerW(pidl) ))
2031         {
2032             /* unicode filesystem */
2033             if (szOut)
2034                 lstrcpynW(szOut, szSrcW, uOutSize);
2035
2036             dwReturn = lstrlenW(szSrcW);
2037         }
2038         else if (( szSrc = _ILGetTextPointer(pidl) ))
2039         {
2040             /* filesystem */
2041             MultiByteToWideChar(CP_ACP, 0, szSrc, -1, szTemp, MAX_PATH);
2042
2043             if (szOut)
2044                 lstrcpynW(szOut, szTemp, uOutSize);
2045
2046             dwReturn = lstrlenW (szTemp);
2047         }
2048         else if (( riid = _ILGetGUIDPointer(pidl) ))
2049         {
2050             /* special folder */
2051             if ( HCR_GetClassNameW(riid, szTemp, MAX_PATH) )
2052             {
2053                 if (szOut)
2054                     lstrcpynW(szOut, szTemp, uOutSize);
2055
2056                 dwReturn = lstrlenW (szTemp);
2057             }
2058         }
2059         else
2060         {
2061             ERR("-- no text\n");
2062         }
2063     }
2064
2065     TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_w(szOut),dwReturn);
2066     return dwReturn;
2067 }
2068
2069 /**************************************************************************
2070  *
2071  *    ### 4. getting pointers to parts of pidls ###
2072  *
2073  **************************************************************************
2074  *  _ILGetDataPointer()
2075  */
2076 LPPIDLDATA _ILGetDataPointer(LPCITEMIDLIST pidl)
2077 {
2078     if(!_ILIsEmpty(pidl))
2079         return (LPPIDLDATA)pidl->mkid.abID;
2080     return NULL;
2081 }
2082
2083 /**************************************************************************
2084  *  _ILGetTextPointerW()
2085  * gets a pointer to the unicode long filename string stored in the pidl
2086  */
2087 static LPWSTR _ILGetTextPointerW(LPCITEMIDLIST pidl)
2088 {
2089     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
2090
2091     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2092
2093     if (!pdata)
2094         return NULL;
2095
2096     switch (pdata->type)
2097     {
2098     case PT_GUID:
2099     case PT_SHELLEXT:
2100     case PT_YAGUID:
2101         return NULL;
2102
2103     case PT_DRIVE:
2104     case PT_DRIVE1:
2105     case PT_DRIVE2:
2106     case PT_DRIVE3:
2107         /*return (LPSTR)&(pdata->u.drive.szDriveName);*/
2108         return NULL;
2109
2110     case PT_FOLDER:
2111     case PT_FOLDER1:
2112     case PT_VALUE:
2113     case PT_IESPECIAL1:
2114     case PT_IESPECIAL2:
2115         /*return (LPSTR)&(pdata->u.file.szNames);*/
2116         return NULL;
2117
2118     case PT_WORKGRP:
2119     case PT_COMP:
2120     case PT_NETWORK:
2121     case PT_NETPROVIDER:
2122     case PT_SHARE:
2123         /*return (LPSTR)&(pdata->u.network.szNames);*/
2124         return NULL;
2125
2126     case PT_VALUEW:
2127         return (LPWSTR)pdata->u.file.szNames;
2128     }
2129     return NULL;
2130 }
2131
2132
2133 /**************************************************************************
2134  *  _ILGetTextPointer()
2135  * gets a pointer to the long filename string stored in the pidl
2136  */
2137 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
2138 {
2139     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
2140
2141     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2142
2143     if (!pdata)
2144         return NULL;
2145
2146     switch (pdata->type)
2147     {
2148     case PT_GUID:
2149     case PT_SHELLEXT:
2150     case PT_YAGUID:
2151         return NULL;
2152
2153     case PT_DRIVE:
2154     case PT_DRIVE1:
2155     case PT_DRIVE2:
2156     case PT_DRIVE3:
2157         return pdata->u.drive.szDriveName;
2158
2159     case PT_FOLDER:
2160     case PT_FOLDER1:
2161     case PT_VALUE:
2162     case PT_IESPECIAL1:
2163     case PT_IESPECIAL2:
2164         return pdata->u.file.szNames;
2165
2166     case PT_WORKGRP:
2167     case PT_COMP:
2168     case PT_NETWORK:
2169     case PT_NETPROVIDER:
2170     case PT_SHARE:
2171         return pdata->u.network.szNames;
2172     }
2173     return NULL;
2174 }
2175
2176 /**************************************************************************
2177  *  _ILGetSTextPointer()
2178  * gets a pointer to the short filename string stored in the pidl
2179  */
2180 static LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
2181 {
2182     /* TRACE(pidl,"(pidl%p)\n", pidl); */
2183
2184     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2185
2186     if (!pdata)
2187         return NULL;
2188
2189     switch (pdata->type)
2190     {
2191     case PT_FOLDER:
2192     case PT_VALUE:
2193     case PT_IESPECIAL1:
2194     case PT_IESPECIAL2:
2195         return pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1;
2196
2197     case PT_WORKGRP:
2198         return pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1;
2199     }
2200     return NULL;
2201 }
2202
2203 /**************************************************************************
2204  * _ILGetGUIDPointer()
2205  *
2206  * returns reference to guid stored in some pidls
2207  */
2208 IID* _ILGetGUIDPointer(LPCITEMIDLIST pidl)
2209 {
2210     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2211
2212     TRACE("%p\n", pidl);
2213
2214     if (!pdata)
2215         return NULL;
2216
2217     TRACE("pdata->type 0x%04x\n", pdata->type);
2218     switch (pdata->type)
2219     {
2220     case PT_SHELLEXT:
2221     case PT_GUID:
2222     case PT_YAGUID:
2223         return &(pdata->u.guid.guid);
2224
2225     default:
2226         TRACE("Unknown pidl type 0x%04x\n", pdata->type);
2227         break;
2228     }
2229     return NULL;
2230 }
2231
2232 /******************************************************************************
2233  * _ILGetFileStructW [Internal]
2234  *
2235  * Get pointer the a SHITEMID's FileStructW field if present
2236  *
2237  * PARAMS
2238  *  pidl [I] The SHITEMID
2239  *
2240  * RETURNS
2241  *  Success: Pointer to pidl's FileStructW field.
2242  *  Failure: NULL
2243  */
2244 FileStructW* _ILGetFileStructW(LPCITEMIDLIST pidl) {
2245     FileStructW *pFileStructW;
2246     WORD cbOffset;
2247
2248     if (!(_ILIsValue(pidl) || _ILIsFolder(pidl)))
2249         return NULL;
2250
2251     cbOffset = *(const WORD *)((const BYTE *)pidl + pidl->mkid.cb - sizeof(WORD));
2252     pFileStructW = (FileStructW*)((LPBYTE)pidl + cbOffset);
2253
2254     /* Currently I don't see a fool prove way to figure out if a pidl is for sure of WinXP
2255      * style with a FileStructW member. If we switch all our shellfolder-implementations to
2256      * the new format, this won't be a problem. For now, we do as many sanity checks as possible. */
2257     if ((cbOffset & 0x1) || /* FileStructW member is word aligned in the pidl */
2258         /* FileStructW is positioned after FileStruct */
2259         cbOffset < sizeof(pidl->mkid.cb) + sizeof(PIDLTYPE) + sizeof(FileStruct) ||
2260         /* There has to be enough space at cbOffset in the pidl to hold FileStructW and cbOffset */
2261         cbOffset > pidl->mkid.cb - sizeof(cbOffset) - sizeof(FileStructW) ||
2262         pidl->mkid.cb != cbOffset + pFileStructW->cbLen)
2263     {
2264         WARN("Invalid pidl format (cbOffset = %d)!\n", cbOffset);
2265         return NULL;
2266     }
2267
2268     return pFileStructW;
2269 }
2270
2271 /*************************************************************************
2272  * _ILGetFileDateTime
2273  *
2274  * Given the ItemIdList, get the FileTime
2275  *
2276  * PARAMS
2277  *      pidl        [I] The ItemIDList
2278  *      pFt         [I] the resulted FILETIME of the file
2279  *
2280  * RETURNS
2281  *     True if Successful
2282  *
2283  * NOTES
2284  *
2285  */
2286 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
2287 {
2288     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2289
2290     if (!pdata)
2291         return FALSE;
2292
2293     switch (pdata->type)
2294     {
2295     case PT_FOLDER:
2296     case PT_VALUE:
2297         DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
2298         break;
2299     default:
2300         return FALSE;
2301     }
2302     return TRUE;
2303 }
2304
2305 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2306 {
2307     FILETIME ft,lft;
2308     SYSTEMTIME time;
2309     BOOL ret;
2310
2311     if (_ILGetFileDateTime( pidl, &ft ))
2312     {
2313         FileTimeToLocalFileTime(&ft, &lft);
2314         FileTimeToSystemTime (&lft, &time);
2315
2316         ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
2317         if (ret)
2318         {
2319             /* Append space + time without seconds */
2320             pOut[ret-1] = ' ';
2321             GetTimeFormatA(LOCALE_USER_DEFAULT, TIME_NOSECONDS, &time, NULL, &pOut[ret], uOutSize - ret);
2322         }
2323     }
2324     else
2325     {
2326         pOut[0] = '\0';
2327         ret = FALSE;
2328     }
2329     return ret;
2330 }
2331
2332 /*************************************************************************
2333  * _ILGetFileSize
2334  *
2335  * Given the ItemIdList, get the FileSize
2336  *
2337  * PARAMS
2338  *    pidl     [I] The ItemIDList
2339  *    pOut     [I] The buffer to save the result
2340  *    uOutsize [I] The size of the buffer
2341  *
2342  * RETURNS
2343  *    The FileSize
2344  *
2345  * NOTES
2346  *    pOut can be null when no string is needed
2347  *
2348  */
2349 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2350 {
2351     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2352     DWORD dwSize;
2353
2354     if (!pdata)
2355         return 0;
2356
2357     switch (pdata->type)
2358     {
2359     case PT_VALUE:
2360         dwSize = pdata->u.file.dwFileSize;
2361         if (pOut)
2362             StrFormatKBSizeA(dwSize, pOut, uOutSize);
2363         return dwSize;
2364     }
2365     if (pOut)
2366         *pOut = 0x00;
2367     return 0;
2368 }
2369
2370 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2371 {
2372     char szTemp[MAX_PATH];
2373     const char * pPoint;
2374     LPCITEMIDLIST  pidlTemp=pidl;
2375
2376     TRACE("pidl=%p\n",pidl);
2377
2378     if (!pidl)
2379         return FALSE;
2380
2381     pidlTemp = ILFindLastID(pidl);
2382
2383     if (!_ILIsValue(pidlTemp))
2384         return FALSE;
2385     if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH))
2386         return FALSE;
2387
2388     pPoint = PathFindExtensionA(szTemp);
2389
2390     if (!*pPoint)
2391         return FALSE;
2392
2393     pPoint++;
2394     lstrcpynA(pOut, pPoint, uOutSize);
2395     TRACE("%s\n",pOut);
2396
2397     return TRUE;
2398 }
2399
2400 /*************************************************************************
2401  * _ILGetFileType
2402  *
2403  * Given the ItemIdList, get the file type description
2404  *
2405  * PARAMS
2406  *      pidl        [I] The ItemIDList (simple)
2407  *      pOut        [I] The buffer to save the result
2408  *      uOutsize    [I] The size of the buffer
2409  *
2410  * RETURNS
2411  *    nothing
2412  *
2413  * NOTES
2414  *    This function copies as much as possible into the buffer.
2415  */
2416 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2417 {
2418     if(_ILIsValue(pidl))
2419     {
2420         char sTemp[64];
2421
2422         /* "name" or "name." or any unhandled => "File" */
2423         lstrcpynA (pOut, "File", uOutSize);
2424
2425         /* If there's space for more, try to get a better description. */
2426         if (uOutSize > 6 && _ILGetExtension (pidl, sTemp, 64))
2427         {
2428             if (!( HCR_MapTypeToValueA(sTemp, sTemp, 64, TRUE)
2429                 && HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE ))
2430                 && sTemp[0])
2431             {
2432                 lstrcpynA (pOut, sTemp, uOutSize - 6);
2433                 strcat (pOut, " file");
2434             }
2435         }
2436     }
2437     else
2438         lstrcpynA(pOut, "Folder", uOutSize);
2439 }
2440
2441 /*************************************************************************
2442  * _ILGetFileAttributes
2443  *
2444  * Given the ItemIdList, get the Attrib string format
2445  *
2446  * PARAMS
2447  *      pidl        [I] The ItemIDList
2448  *      pOut        [I] The buffer to save the result
2449  *      uOutsize    [I] The size of the Buffer
2450  *
2451  * RETURNS
2452  *     Attributes
2453  *
2454  * FIXME
2455  *  return value 0 in case of error is a valid return value
2456  *
2457  */
2458 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2459 {
2460     LPPIDLDATA pData = _ILGetDataPointer(pidl);
2461     WORD wAttrib = 0;
2462     int i;
2463
2464     if (!pData)
2465         return 0;
2466
2467     switch(pData->type)
2468     {
2469     case PT_FOLDER:
2470     case PT_VALUE:
2471         wAttrib = pData->u.file.uFileAttribs;
2472         break;
2473     }
2474
2475     if(uOutSize >= 6)
2476     {
2477         i=0;
2478         if(wAttrib & FILE_ATTRIBUTE_READONLY)
2479             pOut[i++] = 'R';
2480         if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
2481             pOut[i++] = 'H';
2482         if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
2483             pOut[i++] = 'S';
2484         if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
2485             pOut[i++] = 'A';
2486         if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
2487             pOut[i++] = 'C';
2488         pOut[i] = 0x00;
2489     }
2490     return wAttrib;
2491 }
2492
2493 /*************************************************************************
2494  * ILFreeaPidl
2495  *
2496  * frees an aPidl struct
2497  */
2498 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
2499 {
2500     UINT   i;
2501
2502     if (apidl)
2503     {
2504         for (i = 0; i < cidl; i++)
2505             SHFree(apidl[i]);
2506         SHFree(apidl);
2507     }
2508 }
2509
2510 /*************************************************************************
2511  * ILCopyaPidl
2512  *
2513  * copies an aPidl struct
2514  */
2515 LPITEMIDLIST* _ILCopyaPidl(const LPCITEMIDLIST * apidlsrc, UINT cidl)
2516 {
2517     UINT i;
2518     LPITEMIDLIST *apidldest;
2519
2520     if (!apidlsrc)
2521         return NULL;
2522
2523     apidldest = SHAlloc(cidl * sizeof(LPITEMIDLIST));
2524
2525     for (i = 0; i < cidl; i++)
2526         apidldest[i] = ILClone(apidlsrc[i]);
2527
2528     return apidldest;
2529 }
2530
2531 /*************************************************************************
2532  * _ILCopyCidaToaPidl
2533  *
2534  * creates aPidl from CIDA
2535  */
2536 LPITEMIDLIST* _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, const CIDA * cida)
2537 {
2538     UINT i;
2539     LPITEMIDLIST *dst;
2540
2541     dst = SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
2542     if (!dst)
2543         return NULL;
2544
2545     if (pidl)
2546         *pidl = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[0]]));
2547
2548     for (i = 0; i < cida->cidl; i++)
2549         dst[i] = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[i + 1]]));
2550
2551     return dst;
2552 }