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 (_ILIsEmpty(pidl))
 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  * SHGetNameFromIDList             [SHELL32.@]
1352  */
1353 HRESULT WINAPI SHGetNameFromIDList(PCIDLIST_ABSOLUTE pidl, SIGDN sigdnName, PWSTR *ppszName)
1354 {
1355     IShellFolder *psfparent;
1356     LPCITEMIDLIST child_pidl;
1357     STRRET disp_name;
1358     HRESULT ret;
1359
1360     TRACE("%p %d %p\n", pidl, sigdnName, ppszName);
1361
1362     *ppszName = NULL;
1363     ret = SHBindToParent(pidl, &IID_IShellFolder, (void**)&psfparent, &child_pidl);
1364     if(SUCCEEDED(ret))
1365     {
1366         switch(sigdnName)
1367         {
1368                                                 /* sigdnName & 0xffff */
1369         case SIGDN_NORMALDISPLAY:               /* SHGDN_NORMAL */
1370         case SIGDN_PARENTRELATIVEPARSING:       /* SHGDN_INFOLDER | SHGDN_FORPARSING */
1371         case SIGDN_PARENTRELATIVEEDITING:       /* SHGDN_INFOLDER | SHGDN_FOREDITING */
1372         case SIGDN_DESKTOPABSOLUTEPARSING:      /* SHGDN_FORPARSING */
1373         case SIGDN_DESKTOPABSOLUTEEDITING:      /* SHGDN_FOREDITING | SHGDN_FORADDRESSBAR*/
1374         case SIGDN_PARENTRELATIVEFORADDRESSBAR: /* SIGDN_INFOLDER | SHGDN_FORADDRESSBAR */
1375         case SIGDN_PARENTRELATIVE:              /* SIGDN_INFOLDER */
1376
1377             disp_name.uType = STRRET_WSTR;
1378             ret = IShellFolder_GetDisplayNameOf(psfparent, child_pidl,
1379                                                 sigdnName & 0xffff,
1380                                                 &disp_name);
1381             if(SUCCEEDED(ret))
1382                 ret = StrRetToStrW(&disp_name, pidl, ppszName);
1383
1384             break;
1385
1386         case SIGDN_FILESYSPATH:
1387             *ppszName = CoTaskMemAlloc(sizeof(WCHAR)*MAX_PATH);
1388             if(SHGetPathFromIDListW(pidl, *ppszName))
1389             {
1390                 TRACE("Got string %s\n", debugstr_w(*ppszName));
1391                 ret = S_OK;
1392             }
1393             else
1394             {
1395                 CoTaskMemFree(*ppszName);
1396                 ret = E_INVALIDARG;
1397             }
1398             break;
1399
1400         case SIGDN_URL:
1401         default:
1402             FIXME("Unsupported SIGDN %x\n", sigdnName);
1403             ret = E_FAIL;
1404         }
1405
1406         IShellFolder_Release(psfparent);
1407     }
1408     return ret;
1409 }
1410
1411 /*************************************************************************
1412  * SHGetIDListFromObject             [SHELL32.@]
1413  */
1414 HRESULT WINAPI SHGetIDListFromObject(IUnknown *punk, PIDLIST_ABSOLUTE *ppidl)
1415 {
1416     IPersistIDList *ppersidl;
1417     IPersistFolder2 *ppf2;
1418     IDataObject *pdo;
1419     IFolderView *pfv;
1420     HRESULT ret;
1421
1422     if(!punk)
1423         return E_NOINTERFACE;
1424
1425     *ppidl = NULL;
1426
1427     /* Try IPersistIDList */
1428     ret = IUnknown_QueryInterface(punk, &IID_IPersistIDList, (void**)&ppersidl);
1429     if(SUCCEEDED(ret))
1430     {
1431         TRACE("IPersistIDList (%p)\n", ppersidl);
1432         ret = IPersistIDList_GetIDList(ppersidl, ppidl);
1433         IPersistIDList_Release(ppersidl);
1434         if(SUCCEEDED(ret))
1435             return ret;
1436     }
1437
1438     /* Try IPersistFolder2 */
1439     ret = IUnknown_QueryInterface(punk, &IID_IPersistFolder2, (void**)&ppf2);
1440     if(SUCCEEDED(ret))
1441     {
1442         TRACE("IPersistFolder2 (%p)\n", ppf2);
1443         ret = IPersistFolder2_GetCurFolder(ppf2, ppidl);
1444         IPersistFolder2_Release(ppf2);
1445         if(SUCCEEDED(ret))
1446             return ret;
1447     }
1448
1449     /* Try IDataObject */
1450     ret = IUnknown_QueryInterface(punk, &IID_IDataObject, (void**)&pdo);
1451     if(SUCCEEDED(ret))
1452     {
1453         IShellItem *psi;
1454         TRACE("IDataObject (%p)\n", pdo);
1455         ret = SHGetItemFromDataObject(pdo, DOGIF_ONLY_IF_ONE,
1456                                       &IID_IShellItem, (void**)&psi);
1457         if(SUCCEEDED(ret))
1458         {
1459             ret = SHGetIDListFromObject((IUnknown*)psi, ppidl);
1460             IShellItem_Release(psi);
1461         }
1462         IDataObject_Release(pdo);
1463
1464         if(SUCCEEDED(ret))
1465             return ret;
1466     }
1467
1468     /* Try IFolderView */
1469     ret = IUnknown_QueryInterface(punk, &IID_IFolderView, (void**)&pfv);
1470     if(SUCCEEDED(ret))
1471     {
1472         IShellFolder *psf;
1473         TRACE("IFolderView (%p)\n", pfv);
1474         ret = IFolderView_GetFolder(pfv, &IID_IShellFolder, (void**)&psf);
1475         if(SUCCEEDED(ret))
1476         {
1477             /* We might be able to get IPersistFolder2 from a shellfolder. */
1478             ret = SHGetIDListFromObject((IUnknown*)psf, ppidl);
1479         }
1480         IFolderView_Release(pfv);
1481         return ret;
1482     }
1483
1484     return ret;
1485 }
1486
1487 /**************************************************************************
1488  *
1489  *        internal functions
1490  *
1491  *    ### 1. section creating pidls ###
1492  *
1493  *************************************************************************
1494  */
1495
1496 /* Basic PIDL constructor.  Allocates size + 5 bytes, where:
1497  * - two bytes are SHITEMID.cb
1498  * - one byte is PIDLDATA.type
1499  * - two bytes are the NULL PIDL terminator
1500  * Sets type of the returned PIDL to type.
1501  */
1502 static LPITEMIDLIST _ILAlloc(PIDLTYPE type, unsigned int size)
1503 {
1504     LPITEMIDLIST pidlOut = NULL;
1505
1506     pidlOut = SHAlloc(size + 5);
1507     if(pidlOut)
1508     {
1509         LPPIDLDATA pData;
1510         LPITEMIDLIST pidlNext;
1511
1512         ZeroMemory(pidlOut, size + 5);
1513         pidlOut->mkid.cb = size + 3;
1514
1515         pData = _ILGetDataPointer(pidlOut);
1516         if (pData)
1517             pData->type = type;
1518
1519         pidlNext = ILGetNext(pidlOut);
1520         if (pidlNext)
1521             pidlNext->mkid.cb = 0x00;
1522         TRACE("-- (pidl=%p, size=%u)\n", pidlOut, size);
1523     }
1524
1525     return pidlOut;
1526 }
1527
1528 LPITEMIDLIST _ILCreateDesktop(void)
1529 {
1530     LPITEMIDLIST ret;
1531
1532     TRACE("()\n");
1533     ret = SHAlloc(2);
1534     if (ret)
1535         ret->mkid.cb = 0;
1536     return ret;
1537 }
1538
1539 LPITEMIDLIST _ILCreateMyComputer(void)
1540 {
1541     TRACE("()\n");
1542     return _ILCreateGuid(PT_GUID, &CLSID_MyComputer);
1543 }
1544
1545 LPITEMIDLIST _ILCreateMyDocuments(void)
1546 {
1547     TRACE("()\n");
1548     return _ILCreateGuid(PT_GUID, &CLSID_MyDocuments);
1549 }
1550
1551 LPITEMIDLIST _ILCreateIExplore(void)
1552 {
1553     TRACE("()\n");
1554     return _ILCreateGuid(PT_GUID, &CLSID_Internet);
1555 }
1556
1557 LPITEMIDLIST _ILCreateControlPanel(void)
1558 {
1559     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1560
1561     TRACE("()\n");
1562     if (parent)
1563     {
1564         LPITEMIDLIST cpl = _ILCreateGuid(PT_SHELLEXT, &CLSID_ControlPanel);
1565
1566         if (cpl)
1567         {
1568             ret = ILCombine(parent, cpl);
1569             SHFree(cpl);
1570         }
1571         SHFree(parent);
1572     }
1573     return ret;
1574 }
1575
1576 LPITEMIDLIST _ILCreatePrinters(void)
1577 {
1578     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1579
1580     TRACE("()\n");
1581     if (parent)
1582     {
1583         LPITEMIDLIST printers = _ILCreateGuid(PT_YAGUID, &CLSID_Printers);
1584
1585         if (printers)
1586         {
1587             ret = ILCombine(parent, printers);
1588             SHFree(printers);
1589         }
1590         SHFree(parent);
1591     }
1592     return ret;
1593 }
1594
1595 LPITEMIDLIST _ILCreateNetwork(void)
1596 {
1597     TRACE("()\n");
1598     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1599 }
1600
1601 LPITEMIDLIST _ILCreateBitBucket(void)
1602 {
1603     TRACE("()\n");
1604     return _ILCreateGuid(PT_GUID, &CLSID_RecycleBin);
1605 }
1606
1607 LPITEMIDLIST _ILCreateNetHood(void)
1608 {
1609     TRACE("()\n");
1610     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1611 }
1612
1613 LPITEMIDLIST _ILCreateGuid(PIDLTYPE type, REFIID guid)
1614 {
1615     LPITEMIDLIST pidlOut;
1616
1617     if (type == PT_SHELLEXT || type == PT_GUID || type == PT_YAGUID)
1618     {
1619         pidlOut = _ILAlloc(type, sizeof(GUIDStruct));
1620         if (pidlOut)
1621         {
1622             LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1623
1624             pData->u.guid.guid = *guid;
1625             TRACE("-- create GUID-pidl %s\n",
1626                   debugstr_guid(&(pData->u.guid.guid)));
1627         }
1628     }
1629     else
1630     {
1631         WARN("%d: invalid type for GUID\n", type);
1632         pidlOut = NULL;
1633     }
1634     return pidlOut;
1635 }
1636
1637 LPITEMIDLIST _ILCreateGuidFromStrA(LPCSTR szGUID)
1638 {
1639     IID iid;
1640
1641     if (FAILED(SHCLSIDFromStringA(szGUID, &iid)))
1642     {
1643         ERR("%s is not a GUID\n", szGUID);
1644         return NULL;
1645     }
1646     return _ILCreateGuid(PT_GUID, &iid);
1647 }
1648
1649 LPITEMIDLIST _ILCreateGuidFromStrW(LPCWSTR szGUID)
1650 {
1651     IID iid;
1652
1653     if (FAILED(SHCLSIDFromStringW(szGUID, &iid)))
1654     {
1655         ERR("%s is not a GUID\n", debugstr_w(szGUID));
1656         return NULL;
1657     }
1658     return _ILCreateGuid(PT_GUID, &iid);
1659 }
1660
1661 LPITEMIDLIST _ILCreateFromFindDataW( const WIN32_FIND_DATAW *wfd )
1662 {
1663     char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1664     DWORD   len, len1, wlen, alen;
1665     LPITEMIDLIST pidl;
1666     PIDLTYPE type;
1667
1668     if (!wfd)
1669         return NULL;
1670
1671     TRACE("(%s, %s)\n",debugstr_w(wfd->cAlternateFileName), debugstr_w(wfd->cFileName));
1672
1673     /* prepare buffer with both names */
1674     len = WideCharToMultiByte(CP_ACP,0,wfd->cFileName,-1,buff,MAX_PATH,NULL,NULL);
1675     len1 = WideCharToMultiByte(CP_ACP,0,wfd->cAlternateFileName,-1, buff+len, sizeof(buff)-len, NULL, NULL);
1676     alen = len + len1;
1677
1678     type = (wfd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? PT_FOLDER : PT_VALUE;
1679
1680     wlen = lstrlenW(wfd->cFileName) + 1;
1681     pidl = _ILAlloc(type, FIELD_OFFSET(FileStruct, szNames[alen + (alen & 1)]) +
1682                     FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD));
1683     if (pidl)
1684     {
1685         LPPIDLDATA pData = _ILGetDataPointer(pidl);
1686         FileStruct *fs = &pData->u.file;
1687         FileStructW *fsw;
1688         WORD *pOffsetW;
1689
1690         FileTimeToDosDateTime( &wfd->ftLastWriteTime, &fs->uFileDate, &fs->uFileTime);
1691         fs->dwFileSize = wfd->nFileSizeLow;
1692         fs->uFileAttribs = wfd->dwFileAttributes;
1693         memcpy(fs->szNames, buff, alen);
1694
1695         fsw = (FileStructW*)(pData->u.file.szNames + alen + (alen & 0x1));
1696         fsw->cbLen = FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD);
1697         FileTimeToDosDateTime( &wfd->ftCreationTime, &fsw->uCreationDate, &fsw->uCreationTime);
1698         FileTimeToDosDateTime( &wfd->ftLastAccessTime, &fsw->uLastAccessDate, &fsw->uLastAccessTime);
1699         memcpy(fsw->wszName, wfd->cFileName, wlen * sizeof(WCHAR));
1700
1701         pOffsetW = (WORD*)((LPBYTE)pidl + pidl->mkid.cb - sizeof(WORD));
1702         *pOffsetW = (LPBYTE)fsw - (LPBYTE)pidl;
1703         TRACE("-- Set Value: %s\n",debugstr_w(fsw->wszName));
1704     }
1705     return pidl;
1706
1707 }
1708
1709 HRESULT _ILCreateFromPathW(LPCWSTR szPath, LPITEMIDLIST* ppidl)
1710 {
1711     HANDLE hFile;
1712     WIN32_FIND_DATAW stffile;
1713
1714     if (!ppidl)
1715         return E_INVALIDARG;
1716
1717     hFile = FindFirstFileW(szPath, &stffile);
1718     if (hFile == INVALID_HANDLE_VALUE)
1719         return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
1720
1721     FindClose(hFile);
1722
1723     *ppidl = _ILCreateFromFindDataW(&stffile);
1724
1725     return *ppidl ? S_OK : E_OUTOFMEMORY;
1726 }
1727
1728 LPITEMIDLIST _ILCreateDrive(LPCWSTR lpszNew)
1729 {
1730     LPITEMIDLIST pidlOut;
1731
1732     TRACE("(%s)\n",debugstr_w(lpszNew));
1733
1734     pidlOut = _ILAlloc(PT_DRIVE, sizeof(DriveStruct));
1735     if (pidlOut)
1736     {
1737         LPSTR pszDest;
1738
1739         pszDest = _ILGetTextPointer(pidlOut);
1740         if (pszDest)
1741         {
1742             strcpy(pszDest, "x:\\");
1743             pszDest[0]=toupperW(lpszNew[0]);
1744             TRACE("-- create Drive: %s\n", debugstr_a(pszDest));
1745         }
1746     }
1747     return pidlOut;
1748 }
1749
1750 LPITEMIDLIST _ILCreateEntireNetwork(void)
1751 {
1752     LPITEMIDLIST pidlOut;
1753
1754     TRACE("\n");
1755
1756     pidlOut = _ILAlloc(PT_NETWORK, FIELD_OFFSET(PIDLDATA, u.network.szNames[sizeof("Entire Network")]));
1757     if (pidlOut)
1758     {
1759         LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1760
1761         pData->u.network.dummy = 0;
1762         strcpy(pData->u.network.szNames, "Entire Network");
1763     }
1764     return pidlOut;
1765 }
1766
1767 /**************************************************************************
1768  *  _ILGetDrive()
1769  *
1770  *  Gets the text for the drive eg. 'c:\'
1771  *
1772  * RETURNS
1773  *  strlen (lpszText)
1774  */
1775 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1776 {
1777     TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1778
1779     if(_ILIsMyComputer(pidl))
1780         pidl = ILGetNext(pidl);
1781
1782     if (pidl && _ILIsDrive(pidl))
1783         return _ILSimpleGetText(pidl, pOut, uSize);
1784
1785     return 0;
1786 }
1787
1788 /**************************************************************************
1789  *
1790  *    ### 2. section testing pidls ###
1791  *
1792  **************************************************************************
1793  *  _ILIsUnicode()
1794  *  _ILIsDesktop()
1795  *  _ILIsMyComputer()
1796  *  _ILIsSpecialFolder()
1797  *  _ILIsDrive()
1798  *  _ILIsFolder()
1799  *  _ILIsValue()
1800  *  _ILIsPidlSimple()
1801  */
1802 BOOL _ILIsUnicode(LPCITEMIDLIST pidl)
1803 {
1804     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1805
1806     TRACE("(%p)\n",pidl);
1807
1808     return (pidl && lpPData && PT_VALUEW == lpPData->type);
1809 }
1810
1811 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1812 {
1813     TRACE("(%p)\n",pidl);
1814
1815     return pidl && pidl->mkid.cb  ? FALSE : TRUE;
1816 }
1817
1818 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1819 {
1820     REFIID iid = _ILGetGUIDPointer(pidl);
1821
1822     TRACE("(%p)\n",pidl);
1823
1824     if (iid)
1825         return IsEqualIID(iid, &CLSID_MyComputer);
1826     return FALSE;
1827 }
1828
1829 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1830 {
1831     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1832
1833     TRACE("(%p)\n",pidl);
1834
1835     return (pidl && ( (lpPData && (PT_GUID== lpPData->type || PT_SHELLEXT== lpPData->type || PT_YAGUID == lpPData->type)) ||
1836               (pidl && pidl->mkid.cb == 0x00)
1837             ));
1838 }
1839
1840 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1841 {
1842     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1843
1844     TRACE("(%p)\n",pidl);
1845
1846     return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1847                     PT_DRIVE1 == lpPData->type ||
1848                     PT_DRIVE2 == lpPData->type ||
1849                     PT_DRIVE3 == lpPData->type));
1850 }
1851
1852 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1853 {
1854     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1855
1856     TRACE("(%p)\n",pidl);
1857
1858     return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1859 }
1860
1861 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1862 {
1863     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1864
1865     TRACE("(%p)\n",pidl);
1866
1867     return (pidl && lpPData && PT_VALUE == lpPData->type);
1868 }
1869
1870 BOOL _ILIsCPanelStruct(LPCITEMIDLIST pidl)
1871 {
1872     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1873
1874     TRACE("(%p)\n",pidl);
1875
1876     return (pidl && lpPData && (lpPData->type == 0));
1877 }
1878
1879 /**************************************************************************
1880  *    _ILIsPidlSimple
1881  */
1882 BOOL _ILIsPidlSimple(LPCITEMIDLIST pidl)
1883 {
1884     BOOL ret = TRUE;
1885
1886     if(! _ILIsDesktop(pidl))    /* pidl=NULL or mkid.cb=0 */
1887     {
1888         WORD len = pidl->mkid.cb;
1889         LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((const BYTE*)pidl) + len );
1890
1891         if (pidlnext->mkid.cb)
1892             ret = FALSE;
1893     }
1894
1895     TRACE("%s\n", ret ? "Yes" : "No");
1896     return ret;
1897 }
1898
1899 /**************************************************************************
1900  *
1901  *    ### 3. section getting values from pidls ###
1902  */
1903
1904  /**************************************************************************
1905  *  _ILSimpleGetText
1906  *
1907  * gets the text for the first item in the pidl (eg. simple pidl)
1908  *
1909  * returns the length of the string
1910  */
1911 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
1912 {
1913     DWORD        dwReturn=0;
1914     LPSTR        szSrc;
1915     LPWSTR       szSrcW;
1916     GUID const * riid;
1917     char szTemp[MAX_PATH];
1918
1919     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1920
1921     if (!pidl)
1922         return 0;
1923
1924     if (szOut)
1925         *szOut = 0;
1926
1927     if (_ILIsDesktop(pidl))
1928     {
1929         /* desktop */
1930         if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1931         {
1932             if (szOut)
1933                 lstrcpynA(szOut, szTemp, uOutSize);
1934
1935             dwReturn = strlen (szTemp);
1936         }
1937     }
1938     else if (( szSrc = _ILGetTextPointer(pidl) ))
1939     {
1940         /* filesystem */
1941         if (szOut)
1942             lstrcpynA(szOut, szSrc, uOutSize);
1943
1944         dwReturn = strlen(szSrc);
1945     }
1946     else if (( szSrcW = _ILGetTextPointerW(pidl) ))
1947     {
1948         /* unicode filesystem */
1949         WideCharToMultiByte(CP_ACP,0,szSrcW, -1, szTemp, MAX_PATH, NULL, NULL);
1950
1951         if (szOut)
1952             lstrcpynA(szOut, szTemp, uOutSize);
1953
1954         dwReturn = strlen (szTemp);
1955     }
1956     else if (( riid = _ILGetGUIDPointer(pidl) ))
1957     {
1958         /* special folder */
1959         if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
1960         {
1961             if (szOut)
1962                 lstrcpynA(szOut, szTemp, uOutSize);
1963
1964             dwReturn = strlen (szTemp);
1965         }
1966     }
1967     else
1968     {
1969         ERR("-- no text\n");
1970     }
1971
1972     TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_a(szOut),dwReturn);
1973     return dwReturn;
1974 }
1975
1976  /**************************************************************************
1977  *  _ILSimpleGetTextW
1978  *
1979  * gets the text for the first item in the pidl (eg. simple pidl)
1980  *
1981  * returns the length of the string
1982  */
1983 DWORD _ILSimpleGetTextW (LPCITEMIDLIST pidl, LPWSTR szOut, UINT uOutSize)
1984 {
1985     DWORD   dwReturn;
1986     FileStructW *pFileStructW = _ILGetFileStructW(pidl);
1987
1988     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1989
1990     if (pFileStructW) {
1991         lstrcpynW(szOut, pFileStructW->wszName, uOutSize);
1992         dwReturn = lstrlenW(pFileStructW->wszName);
1993     } else {
1994         GUID const * riid;
1995         WCHAR szTemp[MAX_PATH];
1996         LPSTR szSrc;
1997         LPWSTR szSrcW;
1998         dwReturn=0;
1999
2000         if (!pidl)
2001             return 0;
2002
2003         if (szOut)
2004             *szOut = 0;
2005
2006         if (_ILIsDesktop(pidl))
2007         {
2008             /* desktop */
2009             if (HCR_GetClassNameW(&CLSID_ShellDesktop, szTemp, MAX_PATH))
2010             {
2011                 if (szOut)
2012                     lstrcpynW(szOut, szTemp, uOutSize);
2013
2014                 dwReturn = lstrlenW (szTemp);
2015             }
2016         }
2017         else if (( szSrcW = _ILGetTextPointerW(pidl) ))
2018         {
2019             /* unicode filesystem */
2020             if (szOut)
2021                 lstrcpynW(szOut, szSrcW, uOutSize);
2022
2023             dwReturn = lstrlenW(szSrcW);
2024         }
2025         else if (( szSrc = _ILGetTextPointer(pidl) ))
2026         {
2027             /* filesystem */
2028             MultiByteToWideChar(CP_ACP, 0, szSrc, -1, szTemp, MAX_PATH);
2029
2030             if (szOut)
2031                 lstrcpynW(szOut, szTemp, uOutSize);
2032
2033             dwReturn = lstrlenW (szTemp);
2034         }
2035         else if (( riid = _ILGetGUIDPointer(pidl) ))
2036         {
2037             /* special folder */
2038             if ( HCR_GetClassNameW(riid, szTemp, MAX_PATH) )
2039             {
2040                 if (szOut)
2041                     lstrcpynW(szOut, szTemp, uOutSize);
2042
2043                 dwReturn = lstrlenW (szTemp);
2044             }
2045         }
2046         else
2047         {
2048             ERR("-- no text\n");
2049         }
2050     }
2051
2052     TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_w(szOut),dwReturn);
2053     return dwReturn;
2054 }
2055
2056 /**************************************************************************
2057  *
2058  *    ### 4. getting pointers to parts of pidls ###
2059  *
2060  **************************************************************************
2061  *  _ILGetDataPointer()
2062  */
2063 LPPIDLDATA _ILGetDataPointer(LPCITEMIDLIST pidl)
2064 {
2065     if(!_ILIsEmpty(pidl))
2066         return (LPPIDLDATA)pidl->mkid.abID;
2067     return NULL;
2068 }
2069
2070 /**************************************************************************
2071  *  _ILGetTextPointerW()
2072  * gets a pointer to the unicode long filename string stored in the pidl
2073  */
2074 static LPWSTR _ILGetTextPointerW(LPCITEMIDLIST pidl)
2075 {
2076     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
2077
2078     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2079
2080     if (!pdata)
2081         return NULL;
2082
2083     switch (pdata->type)
2084     {
2085     case PT_GUID:
2086     case PT_SHELLEXT:
2087     case PT_YAGUID:
2088         return NULL;
2089
2090     case PT_DRIVE:
2091     case PT_DRIVE1:
2092     case PT_DRIVE2:
2093     case PT_DRIVE3:
2094         /*return (LPSTR)&(pdata->u.drive.szDriveName);*/
2095         return NULL;
2096
2097     case PT_FOLDER:
2098     case PT_FOLDER1:
2099     case PT_VALUE:
2100     case PT_IESPECIAL1:
2101     case PT_IESPECIAL2:
2102         /*return (LPSTR)&(pdata->u.file.szNames);*/
2103         return NULL;
2104
2105     case PT_WORKGRP:
2106     case PT_COMP:
2107     case PT_NETWORK:
2108     case PT_NETPROVIDER:
2109     case PT_SHARE:
2110         /*return (LPSTR)&(pdata->u.network.szNames);*/
2111         return NULL;
2112
2113     case PT_VALUEW:
2114         return (LPWSTR)pdata->u.file.szNames;
2115     }
2116     return NULL;
2117 }
2118
2119
2120 /**************************************************************************
2121  *  _ILGetTextPointer()
2122  * gets a pointer to the long filename string stored in the pidl
2123  */
2124 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
2125 {
2126     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
2127
2128     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2129
2130     if (!pdata)
2131         return NULL;
2132
2133     switch (pdata->type)
2134     {
2135     case PT_GUID:
2136     case PT_SHELLEXT:
2137     case PT_YAGUID:
2138         return NULL;
2139
2140     case PT_DRIVE:
2141     case PT_DRIVE1:
2142     case PT_DRIVE2:
2143     case PT_DRIVE3:
2144         return pdata->u.drive.szDriveName;
2145
2146     case PT_FOLDER:
2147     case PT_FOLDER1:
2148     case PT_VALUE:
2149     case PT_IESPECIAL1:
2150     case PT_IESPECIAL2:
2151         return pdata->u.file.szNames;
2152
2153     case PT_WORKGRP:
2154     case PT_COMP:
2155     case PT_NETWORK:
2156     case PT_NETPROVIDER:
2157     case PT_SHARE:
2158         return pdata->u.network.szNames;
2159     }
2160     return NULL;
2161 }
2162
2163 /**************************************************************************
2164  *  _ILGetSTextPointer()
2165  * gets a pointer to the short filename string stored in the pidl
2166  */
2167 static LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
2168 {
2169     /* TRACE(pidl,"(pidl%p)\n", pidl); */
2170
2171     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2172
2173     if (!pdata)
2174         return NULL;
2175
2176     switch (pdata->type)
2177     {
2178     case PT_FOLDER:
2179     case PT_VALUE:
2180     case PT_IESPECIAL1:
2181     case PT_IESPECIAL2:
2182         return pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1;
2183
2184     case PT_WORKGRP:
2185         return pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1;
2186     }
2187     return NULL;
2188 }
2189
2190 /**************************************************************************
2191  * _ILGetGUIDPointer()
2192  *
2193  * returns reference to guid stored in some pidls
2194  */
2195 IID* _ILGetGUIDPointer(LPCITEMIDLIST pidl)
2196 {
2197     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2198
2199     TRACE("%p\n", pidl);
2200
2201     if (!pdata)
2202         return NULL;
2203
2204     TRACE("pdata->type 0x%04x\n", pdata->type);
2205     switch (pdata->type)
2206     {
2207     case PT_SHELLEXT:
2208     case PT_GUID:
2209     case PT_YAGUID:
2210         return &(pdata->u.guid.guid);
2211
2212     default:
2213         TRACE("Unknown pidl type 0x%04x\n", pdata->type);
2214         break;
2215     }
2216     return NULL;
2217 }
2218
2219 /******************************************************************************
2220  * _ILGetFileStructW [Internal]
2221  *
2222  * Get pointer the a SHITEMID's FileStructW field if present
2223  *
2224  * PARAMS
2225  *  pidl [I] The SHITEMID
2226  *
2227  * RETURNS
2228  *  Success: Pointer to pidl's FileStructW field.
2229  *  Failure: NULL
2230  */
2231 FileStructW* _ILGetFileStructW(LPCITEMIDLIST pidl) {
2232     FileStructW *pFileStructW;
2233     WORD cbOffset;
2234
2235     if (!(_ILIsValue(pidl) || _ILIsFolder(pidl)))
2236         return NULL;
2237
2238     cbOffset = *(const WORD *)((const BYTE *)pidl + pidl->mkid.cb - sizeof(WORD));
2239     pFileStructW = (FileStructW*)((LPBYTE)pidl + cbOffset);
2240
2241     /* Currently I don't see a fool prove way to figure out if a pidl is for sure of WinXP
2242      * style with a FileStructW member. If we switch all our shellfolder-implementations to
2243      * the new format, this won't be a problem. For now, we do as many sanity checks as possible. */
2244     if (cbOffset & 0x1 || /* FileStructW member is word aligned in the pidl */
2245         /* FileStructW is positioned after FileStruct */
2246         cbOffset < sizeof(pidl->mkid.cb) + sizeof(PIDLTYPE) + sizeof(FileStruct) ||
2247         /* There has to be enough space at cbOffset in the pidl to hold FileStructW and cbOffset */
2248         cbOffset > pidl->mkid.cb - sizeof(cbOffset) - sizeof(FileStructW) ||
2249         pidl->mkid.cb != cbOffset + pFileStructW->cbLen)
2250     {
2251         WARN("Invalid pidl format (cbOffset = %d)!\n", cbOffset);
2252         return NULL;
2253     }
2254
2255     return pFileStructW;
2256 }
2257
2258 /*************************************************************************
2259  * _ILGetFileDateTime
2260  *
2261  * Given the ItemIdList, get the FileTime
2262  *
2263  * PARAMS
2264  *      pidl        [I] The ItemIDList
2265  *      pFt         [I] the resulted FILETIME of the file
2266  *
2267  * RETURNS
2268  *     True if Successful
2269  *
2270  * NOTES
2271  *
2272  */
2273 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
2274 {
2275     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2276
2277     if (!pdata)
2278         return FALSE;
2279
2280     switch (pdata->type)
2281     {
2282     case PT_FOLDER:
2283     case PT_VALUE:
2284         DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
2285         break;
2286     default:
2287         return FALSE;
2288     }
2289     return TRUE;
2290 }
2291
2292 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2293 {
2294     FILETIME ft,lft;
2295     SYSTEMTIME time;
2296     BOOL ret;
2297
2298     if (_ILGetFileDateTime( pidl, &ft ))
2299     {
2300         FileTimeToLocalFileTime(&ft, &lft);
2301         FileTimeToSystemTime (&lft, &time);
2302
2303         ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
2304         if (ret)
2305         {
2306             /* Append space + time without seconds */
2307             pOut[ret-1] = ' ';
2308             GetTimeFormatA(LOCALE_USER_DEFAULT, TIME_NOSECONDS, &time, NULL, &pOut[ret], uOutSize - ret);
2309         }
2310     }
2311     else
2312     {
2313         pOut[0] = '\0';
2314         ret = FALSE;
2315     }
2316     return ret;
2317 }
2318
2319 /*************************************************************************
2320  * _ILGetFileSize
2321  *
2322  * Given the ItemIdList, get the FileSize
2323  *
2324  * PARAMS
2325  *    pidl     [I] The ItemIDList
2326  *    pOut     [I] The buffer to save the result
2327  *    uOutsize [I] The size of the buffer
2328  *
2329  * RETURNS
2330  *    The FileSize
2331  *
2332  * NOTES
2333  *    pOut can be null when no string is needed
2334  *
2335  */
2336 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2337 {
2338     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2339     DWORD dwSize;
2340
2341     if (!pdata)
2342         return 0;
2343
2344     switch (pdata->type)
2345     {
2346     case PT_VALUE:
2347         dwSize = pdata->u.file.dwFileSize;
2348         if (pOut)
2349             StrFormatKBSizeA(dwSize, pOut, uOutSize);
2350         return dwSize;
2351     }
2352     if (pOut)
2353         *pOut = 0x00;
2354     return 0;
2355 }
2356
2357 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2358 {
2359     char szTemp[MAX_PATH];
2360     const char * pPoint;
2361     LPCITEMIDLIST  pidlTemp=pidl;
2362
2363     TRACE("pidl=%p\n",pidl);
2364
2365     if (!pidl)
2366         return FALSE;
2367
2368     pidlTemp = ILFindLastID(pidl);
2369
2370     if (!_ILIsValue(pidlTemp))
2371         return FALSE;
2372     if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH))
2373         return FALSE;
2374
2375     pPoint = PathFindExtensionA(szTemp);
2376
2377     if (!*pPoint)
2378         return FALSE;
2379
2380     pPoint++;
2381     lstrcpynA(pOut, pPoint, uOutSize);
2382     TRACE("%s\n",pOut);
2383
2384     return TRUE;
2385 }
2386
2387 /*************************************************************************
2388  * _ILGetFileType
2389  *
2390  * Given the ItemIdList, get the file type description
2391  *
2392  * PARAMS
2393  *      pidl        [I] The ItemIDList (simple)
2394  *      pOut        [I] The buffer to save the result
2395  *      uOutsize    [I] The size of the buffer
2396  *
2397  * RETURNS
2398  *    nothing
2399  *
2400  * NOTES
2401  *    This function copies as much as possible into the buffer.
2402  */
2403 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2404 {
2405     if(_ILIsValue(pidl))
2406     {
2407         char sTemp[64];
2408
2409         if(uOutSize > 0)
2410             pOut[0] = 0;
2411         if (_ILGetExtension (pidl, sTemp, 64))
2412         {
2413             if (!( HCR_MapTypeToValueA(sTemp, sTemp, 64, TRUE)
2414                 && HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE )))
2415             {
2416                 lstrcpynA (pOut, sTemp, uOutSize - 6);
2417                 strcat (pOut, "-file");
2418             }
2419         }
2420     }
2421     else
2422         lstrcpynA(pOut, "Folder", uOutSize);
2423 }
2424
2425 /*************************************************************************
2426  * _ILGetFileAttributes
2427  *
2428  * Given the ItemIdList, get the Attrib string format
2429  *
2430  * PARAMS
2431  *      pidl        [I] The ItemIDList
2432  *      pOut        [I] The buffer to save the result
2433  *      uOutsize    [I] The size of the Buffer
2434  *
2435  * RETURNS
2436  *     Attributes
2437  *
2438  * FIXME
2439  *  return value 0 in case of error is a valid return value
2440  *
2441  */
2442 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2443 {
2444     LPPIDLDATA pData = _ILGetDataPointer(pidl);
2445     WORD wAttrib = 0;
2446     int i;
2447
2448     if (!pData)
2449         return 0;
2450
2451     switch(pData->type)
2452     {
2453     case PT_FOLDER:
2454     case PT_VALUE:
2455         wAttrib = pData->u.file.uFileAttribs;
2456         break;
2457     }
2458
2459     if(uOutSize >= 6)
2460     {
2461         i=0;
2462         if(wAttrib & FILE_ATTRIBUTE_READONLY)
2463             pOut[i++] = 'R';
2464         if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
2465             pOut[i++] = 'H';
2466         if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
2467             pOut[i++] = 'S';
2468         if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
2469             pOut[i++] = 'A';
2470         if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
2471             pOut[i++] = 'C';
2472         pOut[i] = 0x00;
2473     }
2474     return wAttrib;
2475 }
2476
2477 /*************************************************************************
2478  * ILFreeaPidl
2479  *
2480  * free a aPidl struct
2481  */
2482 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
2483 {
2484     UINT   i;
2485
2486     if (apidl)
2487     {
2488         for (i = 0; i < cidl; i++)
2489             SHFree(apidl[i]);
2490         SHFree(apidl);
2491     }
2492 }
2493
2494 /*************************************************************************
2495  * ILCopyaPidl
2496  *
2497  * copies an aPidl struct
2498  */
2499 LPITEMIDLIST* _ILCopyaPidl(const LPCITEMIDLIST * apidlsrc, UINT cidl)
2500 {
2501     UINT i;
2502     LPITEMIDLIST *apidldest;
2503
2504     apidldest = SHAlloc(cidl * sizeof(LPITEMIDLIST));
2505     if (!apidlsrc)
2506         return NULL;
2507
2508     for (i = 0; i < cidl; i++)
2509         apidldest[i] = ILClone(apidlsrc[i]);
2510
2511     return apidldest;
2512 }
2513
2514 /*************************************************************************
2515  * _ILCopyCidaToaPidl
2516  *
2517  * creates aPidl from CIDA
2518  */
2519 LPITEMIDLIST* _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, const CIDA * cida)
2520 {
2521     UINT i;
2522     LPITEMIDLIST *dst;
2523
2524     dst = SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
2525     if (!dst)
2526         return NULL;
2527
2528     if (pidl)
2529         *pidl = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[0]]));
2530
2531     for (i = 0; i < cida->cidl; i++)
2532         dst[i] = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[i + 1]]));
2533
2534     return dst;
2535 }