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