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 <ctype.h>
  26 #include <stdarg.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29
  30 #define COBJMACROS
  31 #include "windef.h"
  32 #include "winbase.h"
  33 #include "winreg.h"
  34 #include "objbase.h"
  35 #include "shlguid.h"
  36 #include "winerror.h"
  37 #include "winnls.h"
  38 #include "shell32_main.h"
  39 #include "shlwapi.h"
  40
  41 #include "pidl.h"
  42 #include "wine/debug.h"
  43
  44 WINE_DEFAULT_DEBUG_CHANNEL(pidl);
  45 WINE_DECLARE_DEBUG_CHANNEL(shell);
  46
  47 /* from comctl32.dll */
  48 extern LPVOID WINAPI Alloc(INT);
  49 extern BOOL WINAPI Free(LPVOID);
  50
  51 static LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl);
  52 static LPWSTR _ILGetTextPointerW(LPCITEMIDLIST pidl);
  53
  54 /*************************************************************************
  55  * ILGetDisplayNameExA
  56  *
  57  * Retrieves the display name of an ItemIDList
  58  *
  59  * PARAMS
  60  *  psf        [I]   Shell Folder to start with, if NULL the desktop is used
  61  *  pidl       [I]   ItemIDList relative to the psf to get the display name for
  62  *  path       [O]   Filled in with the display name, assumed to be at least MAX_PATH long
  63  *  type       [I]   Type of display name to retrieve
  64  *                    0 = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR uses always the desktop as root
  65  *                    1 = SHGDN_NORMAL relative to the root folder
  66  *                    2 = SHGDN_INFOLDER relative to the root folder, only the last name
  67  *
  68  * RETURNS
  69  *  True if the display name could be retrieved successfully, False otherwise
  70  */
  71 static BOOL ILGetDisplayNameExA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPSTR path, DWORD type)
  72 {
  73     BOOL ret = FALSE;
  74     WCHAR wPath[MAX_PATH];
  75
  76     TRACE("%p %p %p %ld\n", psf, pidl, path, type);
  77
  78     if (!pidl || !path)
  79         return FALSE;
  80
  81     ret = ILGetDisplayNameExW(psf, pidl, wPath, type);
  82     WideCharToMultiByte(CP_ACP, 0, wPath, -1, path, MAX_PATH, NULL, NULL);
  83     TRACE("%p %p %s\n", psf, pidl, debugstr_a(path));
  84
  85     return ret;
  86 }
  87
  88 BOOL ILGetDisplayNameExW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPWSTR path, DWORD type)
  89 {
  90     LPSHELLFOLDER psfParent, lsf = psf;
  91     HRESULT ret = NO_ERROR;
  92     LPCITEMIDLIST pidllast;
  93     STRRET strret;
  94     DWORD flag;
  95
  96     TRACE("%p %p %p %lx\n", psf, pidl, path, type);
  97
  98     if (!pidl || !path)
  99         return FALSE;
 100
 101     if (!lsf)
 102     {
 103         ret = SHGetDesktopFolder(&lsf);
 104         if (FAILED(ret))
 105             return FALSE;
 106     }
 107
 108     switch (type)
 109     {
 110     case ILGDN_FORPARSING:
 111         flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 112         break;
 113     case ILGDN_NORMAL:
 114         flag = SHGDN_NORMAL;
 115         break;
 116     case ILGDN_INFOLDER:
 117         flag = SHGDN_INFOLDER;
 118         break;
 119     default:
 120         FIXME("Unknown type parameter = %lx\n", type);
 121         flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 122         break;
 123     }
 124
 125     if (!*(const WORD*)pidl || type == ILGDN_FORPARSING)
 126     {
 127         ret = IShellFolder_GetDisplayNameOf(lsf, pidl, flag, &strret);
 128         if (SUCCEEDED(ret))
 129         {
 130             if(!StrRetToStrNW(path, MAX_PATH, &strret, pidl))
 131                 ret = E_FAIL;
 132         }
 133     }
 134     else
 135     {
 136         ret = SHBindToParent(pidl, &IID_IShellFolder, (LPVOID*)&psfParent, &pidllast);
 137         if (SUCCEEDED(ret))
 138         {
 139             ret = IShellFolder_GetDisplayNameOf(psfParent, pidllast, flag, &strret);
 140             if (SUCCEEDED(ret))
 141             {
 142                 if(!StrRetToStrNW(path, MAX_PATH, &strret, pidllast))
 143                     ret = E_FAIL;
 144             }
 145             IShellFolder_Release(psfParent);
 146         }
 147     }
 148
 149     TRACE("%p %p %s\n", psf, pidl, debugstr_w(path));
 150
 151     if (!psf)
 152         IShellFolder_Release(lsf);
 153     return SUCCEEDED(ret);
 154 }
 155
 156 /*************************************************************************
 157  * ILGetDisplayNameEx        [SHELL32.186]
 158  */
 159 BOOL WINAPI ILGetDisplayNameEx(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPVOID path, DWORD type)
 160 {
 161     TRACE_(shell)("%p %p %p %ld\n", psf, pidl, path, type);
 162
 163     if (SHELL_OsIsUnicode())
 164         return ILGetDisplayNameExW(psf, pidl, path, type);
 165     return ILGetDisplayNameExA(psf, pidl, path, type);
 166 }
 167
 168 /*************************************************************************
 169  * ILGetDisplayName            [SHELL32.15]
 170  */
 171 BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl, LPVOID path)
 172 {
 173     TRACE_(shell)("%p %p\n", pidl, path);
 174
 175     if (SHELL_OsIsUnicode())
 176         return ILGetDisplayNameExW(NULL, pidl, path, ILGDN_FORPARSING);
 177     return ILGetDisplayNameExA(NULL, pidl, path, ILGDN_FORPARSING);
 178 }
 179
 180 /*************************************************************************
 181  * ILFindLastID [SHELL32.16]
 182  *
 183  * NOTES
 184  *   observed: pidl=Desktop return=pidl
 185  */
 186 LPITEMIDLIST WINAPI ILFindLastID(LPCITEMIDLIST pidl)
 187 {
 188     LPCITEMIDLIST   pidlLast = pidl;
 189
 190     TRACE("(pidl=%p)\n",pidl);
 191
 192     if (!pidl)
 193         return NULL;
 194
 195     while (pidl->mkid.cb)
 196     {
 197         pidlLast = pidl;
 198         pidl = ILGetNext(pidl);
 199     }
 200     return (LPITEMIDLIST)pidlLast;
 201 }
 202
 203 /*************************************************************************
 204  * ILRemoveLastID [SHELL32.17]
 205  *
 206  * NOTES
 207  *   when pidl=Desktop return=FALSE
 208  */
 209 BOOL WINAPI ILRemoveLastID(LPITEMIDLIST pidl)
 210 {
 211     TRACE_(shell)("pidl=%p\n",pidl);
 212
 213     if (_ILIsEmpty(pidl))
 214         return FALSE;
 215     ILFindLastID(pidl)->mkid.cb = 0;
 216     return TRUE;
 217 }
 218
 219 /*************************************************************************
 220  * ILClone [SHELL32.18]
 221  *
 222  * NOTES
 223  *    duplicate an idlist
 224  */
 225 LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
 226 {
 227     DWORD    len;
 228     LPITEMIDLIST  newpidl;
 229
 230     if (!pidl)
 231         return NULL;
 232
 233     len = ILGetSize(pidl);
 234     newpidl = SHAlloc(len);
 235     if (newpidl)
 236         memcpy(newpidl,pidl,len);
 237
 238     TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 239     pdump(pidl);
 240
 241     return newpidl;
 242 }
 243
 244 /*************************************************************************
 245  * ILCloneFirst [SHELL32.19]
 246  *
 247  * NOTES
 248  *  duplicates the first idlist of a complex pidl
 249  */
 250 LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
 251 {
 252     DWORD len;
 253     LPITEMIDLIST pidlNew = NULL;
 254
 255     TRACE("pidl=%p\n", pidl);
 256     pdump(pidl);
 257
 258     if (pidl)
 259     {
 260         len = pidl->mkid.cb;
 261         pidlNew = SHAlloc(len+2);
 262         if (pidlNew)
 263         {
 264             memcpy(pidlNew,pidl,len+2);        /* 2 -> mind a desktop pidl */
 265
 266             if (len)
 267                 ILGetNext(pidlNew)->mkid.cb = 0x00;
 268         }
 269     }
 270     TRACE("-- newpidl=%p\n",pidlNew);
 271
 272     return pidlNew;
 273 }
 274
 275 /*************************************************************************
 276  * ILLoadFromStream (SHELL32.26)
 277  *
 278  * NOTES
 279  *   the first two bytes are the len, the pidl is following then
 280  */
 281 HRESULT WINAPI ILLoadFromStream (IStream * pStream, LPITEMIDLIST * ppPidl)
 282 {
 283     WORD        wLen = 0;
 284     DWORD       dwBytesRead;
 285     HRESULT     ret = E_FAIL;
 286
 287
 288     TRACE_(shell)("%p %p\n", pStream ,  ppPidl);
 289
 290     SHFree(*ppPidl);
 291     *ppPidl = NULL;
 292
 293     IStream_AddRef (pStream);
 294
 295     if (SUCCEEDED(IStream_Read(pStream, &wLen, 2, &dwBytesRead)))
 296     {
 297         TRACE("PIDL length is %d\n", wLen);
 298         if (wLen != 0)
 299         {
 300             *ppPidl = SHAlloc (wLen);
 301             if (SUCCEEDED(IStream_Read(pStream, *ppPidl , wLen, &dwBytesRead)))
 302             {
 303                 TRACE("Stream read OK\n");
 304                 ret = S_OK;
 305             }
 306             else
 307             {
 308                 WARN("reading pidl failed\n");
 309                 SHFree(*ppPidl);
 310                 *ppPidl = NULL;
 311             }
 312         }
 313         else
 314         {
 315             *ppPidl = NULL;
 316             ret = S_OK;
 317         }
 318     }
 319
 320     /* we are not yet fully compatible */
 321     if (*ppPidl && !pcheck(*ppPidl))
 322     {
 323         WARN("Check failed\n");
 324         SHFree(*ppPidl);
 325         *ppPidl = NULL;
 326     }
 327
 328     IStream_Release (pStream);
 329     TRACE("done\n");
 330     return ret;
 331 }
 332
 333 /*************************************************************************
 334  * ILSaveToStream (SHELL32.27)
 335  *
 336  * NOTES
 337  *   the first two bytes are the len, the pidl is following then
 338  */
 339 HRESULT WINAPI ILSaveToStream (IStream * pStream, LPCITEMIDLIST pPidl)
 340 {
 341     WORD        wLen = 0;
 342     HRESULT        ret = E_FAIL;
 343
 344     TRACE_(shell)("%p %p\n", pStream, pPidl);
 345
 346     IStream_AddRef (pStream);
 347
 348     wLen = ILGetSize(pPidl);
 349
 350     if (SUCCEEDED(IStream_Write(pStream, &wLen, 2, NULL)))
 351     {
 352         if (SUCCEEDED(IStream_Write(pStream, pPidl, wLen, NULL)))
 353             ret = S_OK;
 354     }
 355     IStream_Release (pStream);
 356
 357     return ret;
 358 }
 359
 360 /*************************************************************************
 361  * SHILCreateFromPath        [SHELL32.28]
 362  *
 363  * Create an ItemIDList from a path
 364  *
 365  * PARAMS
 366  *  path       [I]
 367  *  ppidl      [O]
 368  *  attributes [I/O] requested attributes on call and actual attributes when
 369  *                   the function returns
 370  *
 371  * RETURNS
 372  *  NO_ERROR if successful, or an OLE errer code otherwise
 373  *
 374  * NOTES
 375  *  Wrapper for IShellFolder_ParseDisplayName().
 376  */
 377 static HRESULT SHILCreateFromPathA(LPCSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 378 {
 379     WCHAR lpszDisplayName[MAX_PATH];
 380
 381     TRACE_(shell)("%s %p 0x%08lx\n", path, ppidl, attributes ? *attributes : 0);
 382
 383     if (!MultiByteToWideChar(CP_ACP, 0, path, -1, lpszDisplayName, MAX_PATH))
 384         lpszDisplayName[MAX_PATH-1] = 0;
 385
 386     return SHILCreateFromPathW(lpszDisplayName, ppidl, attributes);
 387 }
 388
 389 HRESULT SHILCreateFromPathW(LPCWSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 390 {
 391     LPSHELLFOLDER sf;
 392     DWORD pchEaten;
 393     HRESULT ret = E_FAIL;
 394
 395     TRACE_(shell)("%s %p 0x%08lx\n", debugstr_w(path), ppidl, attributes ? *attributes : 0);
 396
 397     if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 398     {
 399         ret = IShellFolder_ParseDisplayName(sf, 0, NULL, (LPWSTR)path, &pchEaten, ppidl, attributes);
 400         IShellFolder_Release(sf);
 401     }
 402     return ret;
 403 }
 404
 405 HRESULT WINAPI SHILCreateFromPathAW (LPCVOID path, LPITEMIDLIST * ppidl, DWORD * attributes)
 406 {
 407     if ( SHELL_OsIsUnicode())
 408         return SHILCreateFromPathW (path, ppidl, attributes);
 409     return SHILCreateFromPathA (path, ppidl, attributes);
 410 }
 411
 412 /*************************************************************************
 413  * SHCloneSpecialIDList      [SHELL32.89]
 414  *
 415  * Create an ItemIDList to one of the special folders.
 416
 417  * PARAMS
 418  *  hwndOwner    [in]
 419  *  nFolder      [in]    CSIDL_xxxxx
 420  *  fCreate      [in]    Create folder if it does not exist
 421  *
 422  * RETURNS
 423  *  Success: The newly created pidl
 424  *  Failure: NULL, if inputs are invalid.
 425  *
 426  * NOTES
 427  *  exported by ordinal.
 428  *  Caller is responsible for deallocating the returned ItemIDList with the
 429  *  shells IMalloc interface, aka ILFree.
 430  */
 431 LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner, DWORD nFolder, BOOL fCreate)
 432 {
 433     LPITEMIDLIST ppidl;
 434     TRACE_(shell)("(hwnd=%p,csidl=0x%lx,%s).\n", hwndOwner, nFolder, fCreate ? "T" : "F");
 435
 436     if (fCreate)
 437         nFolder |= CSIDL_FLAG_CREATE;
 438
 439     SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
 440     return ppidl;
 441 }
 442
 443 /*************************************************************************
 444  * ILGlobalClone             [SHELL32.20]
 445  *
 446  * Clones an ItemIDList using Alloc.
 447  *
 448  * PARAMS
 449  *  pidl       [I]   ItemIDList to clone
 450  *
 451  * RETURNS
 452  *  Newly allocated ItemIDList.
 453  *
 454  * NOTES
 455  *  exported by ordinal.
 456  */
 457 LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
 458 {
 459     DWORD    len;
 460     LPITEMIDLIST  newpidl;
 461
 462     if (!pidl)
 463         return NULL;
 464
 465     len = ILGetSize(pidl);
 466     newpidl = Alloc(len);
 467     if (newpidl)
 468         memcpy(newpidl,pidl,len);
 469
 470     TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 471     pdump(pidl);
 472
 473     return newpidl;
 474 }
 475
 476 /*************************************************************************
 477  * ILIsEqual [SHELL32.21]
 478  *
 479  */
 480 BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 481 {
 482     char    szData1[MAX_PATH];
 483     char    szData2[MAX_PATH];
 484
 485     LPCITEMIDLIST pidltemp1 = pidl1;
 486     LPCITEMIDLIST pidltemp2 = pidl2;
 487
 488     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 489
 490     /*
 491      * Explorer reads from registry directly (StreamMRU),
 492      * so we can only check here
 493      */
 494     if (!pcheck(pidl1) || !pcheck (pidl2))
 495         return FALSE;
 496
 497     pdump (pidl1);
 498     pdump (pidl2);
 499
 500     if (!pidl1 || !pidl2)
 501         return FALSE;
 502
 503     while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 504     {
 505         _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 506         _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 507
 508         if (lstrcmpiA( szData1, szData2 ))
 509             return FALSE;
 510
 511         pidltemp1 = ILGetNext(pidltemp1);
 512         pidltemp2 = ILGetNext(pidltemp2);
 513     }
 514
 515     if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
 516         return TRUE;
 517
 518     return FALSE;
 519 }
 520
 521 /*************************************************************************
 522  * ILIsParent                [SHELL32.23]
 523  *
 524  * Verifies that pidlParent is indeed the (immediate) parent of pidlChild.
 525  *
 526  * PARAMS
 527  *  pidlParent [I]
 528  *  pidlChild  [I]
 529  *  bImmediate [I]   only return true if the parent is the direct parent
 530  *                   of the child
 531  *
 532  * RETURNS
 533  *  True if the parent ItemIDlist is a complete part of the child ItemIdList,
 534  *  False otherwise.
 535  *
 536  * NOTES
 537  *  parent = a/b, child = a/b/c -> true, c is in folder a/b
 538  *  child = a/b/c/d -> false if bImmediate is true, d is not in folder a/b
 539  *  child = a/b/c/d -> true if bImmediate is false, d is in a subfolder of a/b
 540  *  child = a/b -> false if bImmediate is true
 541  *  child = a/b -> true if bImmediate is false
 542  */
 543 BOOL WINAPI ILIsParent(LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
 544 {
 545     char    szData1[MAX_PATH];
 546     char    szData2[MAX_PATH];
 547     LPCITEMIDLIST pParent = pidlParent;
 548     LPCITEMIDLIST pChild = pidlChild;
 549
 550     TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
 551
 552     if (!pParent || !pChild)
 553         return FALSE;
 554
 555     while (pParent->mkid.cb && pChild->mkid.cb)
 556     {
 557         _ILSimpleGetText(pParent, szData1, MAX_PATH);
 558         _ILSimpleGetText(pChild, szData2, MAX_PATH);
 559
 560         if (lstrcmpiA( szData1, szData2 ))
 561             return FALSE;
 562
 563         pParent = ILGetNext(pParent);
 564         pChild = ILGetNext(pChild);
 565     }
 566
 567     /* child has shorter name than parent */
 568     if (pParent->mkid.cb)
 569         return FALSE;
 570
 571     /* not immediate descent */
 572     if ((!pChild->mkid.cb || ILGetNext(pChild)->mkid.cb) && bImmediate)
 573         return FALSE;
 574
 575     return TRUE;
 576 }
 577
 578 /*************************************************************************
 579  * ILFindChild               [SHELL32.24]
 580  *
 581  *  Compares elements from pidl1 and pidl2.
 582  *
 583  * PARAMS
 584  *  pidl1      [I]
 585  *  pidl2      [I]
 586  *
 587  * RETURNS
 588  *  pidl1 is desktop      pidl2
 589  *  pidl1 shorter pidl2   pointer to first different element of pidl2
 590  *                        if there was at least one equal element
 591  *  pidl2 shorter pidl1   0
 592  *  pidl2 equal pidl1     pointer to last 0x00-element of pidl2
 593  *
 594  * NOTES
 595  *  exported by ordinal.
 596  */
 597 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 598 {
 599     char    szData1[MAX_PATH];
 600     char    szData2[MAX_PATH];
 601
 602     LPCITEMIDLIST pidltemp1 = pidl1;
 603     LPCITEMIDLIST pidltemp2 = pidl2;
 604     LPCITEMIDLIST ret=NULL;
 605
 606     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 607
 608     /* explorer reads from registry directly (StreamMRU),
 609        so we can only check here */
 610     if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
 611         return FALSE;
 612
 613     pdump (pidl1);
 614     pdump (pidl2);
 615
 616     if (_ILIsDesktop(pidl1))
 617     {
 618         ret = pidl2;
 619     }
 620     else
 621     {
 622         while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 623         {
 624             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 625             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 626
 627             if (lstrcmpiA(szData1,szData2))
 628                 break;
 629
 630             pidltemp1 = ILGetNext(pidltemp1);
 631             pidltemp2 = ILGetNext(pidltemp2);
 632             ret = pidltemp2;
 633         }
 634
 635         if (pidltemp1->mkid.cb)
 636             ret = NULL; /* elements of pidl1 left*/
 637     }
 638     TRACE_(shell)("--- %p\n", ret);
 639     return (LPITEMIDLIST)ret; /* pidl 1 is shorter */
 640 }
 641
 642 /*************************************************************************
 643  * ILCombine                 [SHELL32.25]
 644  *
 645  * Concatenates two complex ItemIDLists.
 646  *
 647  * PARAMS
 648  *  pidl1      [I]   first complex ItemIDLists
 649  *  pidl2      [I]   complex ItemIDLists to append
 650  *
 651  * RETURNS
 652  *  if both pidl's == NULL      NULL
 653  *  if pidl1 == NULL            cloned pidl2
 654  *  if pidl2 == NULL            cloned pidl1
 655  *  otherwise new pidl with pidl2 appended to pidl1
 656  *
 657  * NOTES
 658  *  exported by ordinal.
 659  *  Does not destroy the passed in ItemIDLists!
 660  */
 661 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 662 {
 663     DWORD    len1,len2;
 664     LPITEMIDLIST  pidlNew;
 665
 666     TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
 667
 668     if (!pidl1 && !pidl2) return NULL;
 669
 670     pdump (pidl1);
 671     pdump (pidl2);
 672
 673     if (!pidl1)
 674     {
 675         pidlNew = ILClone(pidl2);
 676         return pidlNew;
 677     }
 678
 679     if (!pidl2)
 680     {
 681         pidlNew = ILClone(pidl1);
 682         return pidlNew;
 683     }
 684
 685     len1  = ILGetSize(pidl1)-2;
 686     len2  = ILGetSize(pidl2);
 687     pidlNew  = SHAlloc(len1+len2);
 688
 689     if (pidlNew)
 690     {
 691         memcpy(pidlNew,pidl1,len1);
 692         memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 693     }
 694
 695     /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 696     return pidlNew;
 697 }
 698
 699 /*************************************************************************
 700  *  SHGetRealIDL [SHELL32.98]
 701  *
 702  * NOTES
 703  */
 704 HRESULT WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPCITEMIDLIST pidlSimple, LPITEMIDLIST *pidlReal)
 705 {
 706     IDataObject* pDataObj;
 707     HRESULT hr;
 708
 709     hr = IShellFolder_GetUIObjectOf(lpsf, 0, 1, &pidlSimple,
 710                              &IID_IDataObject, 0, (LPVOID*)&pDataObj);
 711     if (SUCCEEDED(hr))
 712     {
 713         STGMEDIUM medium;
 714         FORMATETC fmt;
 715
 716         fmt.cfFormat = RegisterClipboardFormatW(CFSTR_SHELLIDLISTW);
 717         fmt.ptd = NULL;
 718         fmt.dwAspect = DVASPECT_CONTENT;
 719         fmt.lindex = -1;
 720         fmt.tymed = TYMED_HGLOBAL;
 721
 722         hr = IDataObject_GetData(pDataObj, &fmt, &medium);
 723
 724         IDataObject_Release(pDataObj);
 725
 726         if (SUCCEEDED(hr))
 727         {
 728             /*assert(pida->cidl==1);*/
 729             LPIDA pida = GlobalLock(medium.hGlobal);
 730
 731             LPCITEMIDLIST pidl_folder = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[0]);
 732             LPCITEMIDLIST pidl_child = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[1]);
 733
 734             *pidlReal = ILCombine(pidl_folder, pidl_child);
 735
 736             if (!*pidlReal)
 737                 hr = E_OUTOFMEMORY;
 738
 739             GlobalUnlock(medium.hGlobal);
 740             GlobalFree(medium.hGlobal);
 741         }
 742     }
 743
 744     return hr;
 745 }
 746
 747 /*************************************************************************
 748  *  SHLogILFromFSIL [SHELL32.95]
 749  *
 750  * NOTES
 751  *  pild = CSIDL_DESKTOP    ret = 0
 752  *  pild = CSIDL_DRIVES     ret = 0
 753  */
 754 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 755 {
 756     FIXME("(pidl=%p)\n",pidl);
 757
 758     pdump(pidl);
 759
 760     return 0;
 761 }
 762
 763 /*************************************************************************
 764  * ILGetSize                 [SHELL32.152]
 765  *
 766  * Gets the byte size of an ItemIDList including zero terminator
 767  *
 768  * PARAMS
 769  *  pidl       [I]   ItemIDList
 770  *
 771  * RETURNS
 772  *  size of pidl in bytes
 773  *
 774  * NOTES
 775  *  exported by ordinal
 776  */
 777 UINT WINAPI ILGetSize(LPCITEMIDLIST pidl)
 778 {
 779     LPCSHITEMID si = &(pidl->mkid);
 780     UINT len=0;
 781
 782     if (pidl)
 783     {
 784         while (si->cb)
 785         {
 786             len += si->cb;
 787             si  = (LPCSHITEMID)(((const BYTE*)si)+si->cb);
 788         }
 789         len += 2;
 790     }
 791     TRACE("pidl=%p size=%u\n",pidl, len);
 792     return len;
 793 }
 794
 795 /*************************************************************************
 796  * ILGetNext                 [SHELL32.153]
 797  *
 798  * Gets the next ItemID of an ItemIDList
 799  *
 800  * PARAMS
 801  *  pidl       [I]   ItemIDList
 802  *
 803  * RETURNS
 804  *  null -> null
 805  *  desktop -> null
 806  *  simple pidl -> pointer to 0x0000 element
 807  *
 808  * NOTES
 809  *  exported by ordinal.
 810  */
 811 LPITEMIDLIST WINAPI ILGetNext(LPCITEMIDLIST pidl)
 812 {
 813     WORD len;
 814
 815     TRACE("%p\n", pidl);
 816
 817     if (pidl)
 818     {
 819         len =  pidl->mkid.cb;
 820         if (len)
 821         {
 822             pidl = (LPCITEMIDLIST) (((const BYTE*)pidl)+len);
 823             TRACE("-- %p\n", pidl);
 824             return (LPITEMIDLIST)pidl;
 825         }
 826     }
 827     return NULL;
 828 }
 829
 830 /*************************************************************************
 831  * ILAppendID                [SHELL32.154]
 832  *
 833  * Adds the single ItemID item to the ItemIDList indicated by pidl.
 834  * If bEnd is FALSE, inserts the item in the front of the list,
 835  * otherwise it adds the item to the end. (???)
 836  *
 837  * PARAMS
 838  *  pidl       [I]   ItemIDList to extend
 839  *  item       [I]   ItemID to prepend/append
 840  *  bEnd       [I]   Indicates if the item should be appended
 841  *
 842  * NOTES
 843  *  Destroys the passed in idlist! (???)
 844  */
 845 LPITEMIDLIST WINAPI ILAppendID(LPITEMIDLIST pidl, LPCSHITEMID item, BOOL bEnd)
 846 {
 847     LPITEMIDLIST idlRet;
 848     LPCITEMIDLIST itemid = (LPCITEMIDLIST)item;
 849
 850     WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 851
 852     pdump (pidl);
 853     pdump (itemid);
 854
 855     if (_ILIsDesktop(pidl))
 856     {
 857         idlRet = ILClone(itemid);
 858         SHFree (pidl);
 859         return idlRet;
 860     }
 861
 862     if (bEnd)
 863         idlRet = ILCombine(pidl, itemid);
 864     else
 865         idlRet = ILCombine(itemid, pidl);
 866
 867     SHFree(pidl);
 868     return idlRet;
 869 }
 870
 871 /*************************************************************************
 872  * ILFree                    [SHELL32.155]
 873  *
 874  * Frees memory (if not NULL) allocated by SHMalloc allocator
 875  *
 876  * PARAMS
 877  *  pidl         [I]
 878  *
 879  * RETURNS
 880  *  Nothing
 881  *
 882  * NOTES
 883  *  exported by ordinal
 884  */
 885 void WINAPI ILFree(LPITEMIDLIST pidl)
 886 {
 887     TRACE("(pidl=%p)\n",pidl);
 888     SHFree(pidl);
 889 }
 890
 891 /*************************************************************************
 892  * ILGlobalFree              [SHELL32.156]
 893  *
 894  * Frees memory (if not NULL) allocated by Alloc allocator
 895  *
 896  * PARAMS
 897  *  pidl         [I]
 898  *
 899  * RETURNS
 900  *  Nothing
 901  *
 902  * NOTES
 903  *  exported by ordinal.
 904  */
 905 void WINAPI ILGlobalFree( LPITEMIDLIST pidl)
 906 {
 907     TRACE("%p\n", pidl);
 908
 909     Free(pidl);
 910 }
 911
 912 /*************************************************************************
 913  * ILCreateFromPathA         [SHELL32.189]
 914  *
 915  * Creates a complex ItemIDList from a path and returns it.
 916  *
 917  * PARAMS
 918  *  path         [I]
 919  *
 920  * RETURNS
 921  *  the newly created complex ItemIDList or NULL if failed
 922  *
 923  * NOTES
 924  *  exported by ordinal.
 925  */
 926 LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
 927 {
 928     LPITEMIDLIST pidlnew = NULL;
 929
 930     TRACE_(shell)("%s\n", debugstr_a(path));
 931
 932     if (SUCCEEDED(SHILCreateFromPathA(path, &pidlnew, NULL)))
 933         return pidlnew;
 934     return NULL;
 935 }
 936
 937 /*************************************************************************
 938  * ILCreateFromPathW         [SHELL32.190]
 939  *
 940  * See ILCreateFromPathA.
 941  */
 942 LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
 943 {
 944     LPITEMIDLIST pidlnew = NULL;
 945
 946     TRACE_(shell)("%s\n", debugstr_w(path));
 947
 948     if (SUCCEEDED(SHILCreateFromPathW(path, &pidlnew, NULL)))
 949         return pidlnew;
 950     return NULL;
 951 }
 952
 953 /*************************************************************************
 954  * ILCreateFromPath          [SHELL32.157]
 955  */
 956 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
 957 {
 958     if ( SHELL_OsIsUnicode())
 959         return ILCreateFromPathW (path);
 960     return ILCreateFromPathA (path);
 961 }
 962
 963 /*************************************************************************
 964  * _ILParsePathW             [internal]
 965  *
 966  * Creates an ItemIDList from a path and returns it.
 967  *
 968  * PARAMS
 969  *  path         [I]   path to parse and convert into an ItemIDList
 970  *  lpFindFile   [I]   pointer to buffer to initialize the FileSystem
 971  *                     Bind Data object with
 972  *  bBindCtx     [I]   indicates to create a BindContext and assign a
 973  *                     FileSystem Bind Data object
 974  *  ppidl        [O]   the newly create ItemIDList
 975  *  prgfInOut    [I/O] requested attributes on input and actual
 976  *                     attributes on return
 977  *
 978  * RETURNS
 979  *  NO_ERROR on success or an OLE error code
 980  *
 981  * NOTES
 982  *  If either lpFindFile is non-NULL or bBindCtx is TRUE, this function
 983  *  creates a BindContext object and assigns a FileSystem Bind Data object
 984  *  to it, passing the BindContext to IShellFolder_ParseDisplayName. Each
 985  *  IShellFolder uses that FileSystem Bind Data object of the BindContext
 986  *  to pass data about the current path element to the next object. This
 987  *  is used to avoid having to verify the current path element on disk, so
 988  *  that creating an ItemIDList from a nonexistent path still can work.
 989  */
 990 static HRESULT _ILParsePathW(LPCWSTR path, LPWIN32_FIND_DATAW lpFindFile,
 991                              BOOL bBindCtx, LPITEMIDLIST *ppidl, LPDWORD prgfInOut)
 992 {
 993     LPSHELLFOLDER pSF = NULL;
 994     LPBC pBC = NULL;
 995     HRESULT ret;
 996
 997     TRACE("%s %p %d (%p)->%p (%p)->0x%lx\n", debugstr_w(path), lpFindFile, bBindCtx,
 998                                              ppidl, ppidl ? *ppidl : NULL,
 999                                              prgfInOut, prgfInOut ? *prgfInOut : 0);
1000
1001     ret = SHGetDesktopFolder(&pSF);
1002     if (FAILED(ret))
1003         return ret;
1004
1005     if (lpFindFile || bBindCtx)
1006         ret = IFileSystemBindData_Constructor(lpFindFile, &pBC);
1007
1008     if (SUCCEEDED(ret))
1009     {
1010         ret = IShellFolder_ParseDisplayName(pSF, 0, pBC, (LPOLESTR)path, NULL, ppidl, prgfInOut);
1011     }
1012
1013     if (pBC)
1014     {
1015         IBindCtx_Release(pBC);
1016         pBC = NULL;
1017     }
1018
1019     IShellFolder_Release(pSF);
1020
1021     if (FAILED(ret) && ppidl)
1022         *ppidl = NULL;
1023
1024     TRACE("%s %p 0x%lx\n", debugstr_w(path), ppidl ? *ppidl : NULL, prgfInOut ? *prgfInOut : 0);
1025
1026     return ret;
1027 }
1028
1029 /*************************************************************************
1030  * SHSimpleIDListFromPath    [SHELL32.162]
1031  *
1032  * Creates a simple ItemIDList from a path and returns it. This function
1033  * does not fail on nonexistent paths.
1034  *
1035  * PARAMS
1036  *  path         [I]   path to parse and convert into an ItemIDList
1037  *
1038  * RETURNS
1039  *  the newly created simple ItemIDList
1040  *
1041  * NOTES
1042  *  Simple in the name does not mean a relative ItemIDList but rather a
1043  *  fully qualified list, where only the file name is filled in and the
1044  *  directory flag for those ItemID elements this is known about, eg.
1045  *  it is not the last element in the ItemIDList or the actual directory
1046  *  exists on disk.
1047  *  exported by ordinal.
1048  */
1049 LPITEMIDLIST SHSimpleIDListFromPathA(LPCSTR lpszPath)
1050 {
1051     LPITEMIDLIST pidl = NULL;
1052     LPWSTR wPath = NULL;
1053     int len;
1054
1055     TRACE("%s\n", debugstr_a(lpszPath));
1056
1057     if (lpszPath)
1058     {
1059         len = MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, NULL, 0);
1060         wPath = malloc(len * sizeof(WCHAR));
1061         MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, wPath, len);
1062     }
1063
1064     _ILParsePathW(wPath, NULL, TRUE, &pidl, NULL);
1065
1066     free(wPath);
1067     TRACE("%s %p\n", debugstr_a(lpszPath), pidl);
1068     return pidl;
1069 }
1070
1071 LPITEMIDLIST SHSimpleIDListFromPathW(LPCWSTR lpszPath)
1072 {
1073     LPITEMIDLIST pidl = NULL;
1074
1075     TRACE("%s\n", debugstr_w(lpszPath));
1076
1077     _ILParsePathW(lpszPath, NULL, TRUE, &pidl, NULL);
1078     TRACE("%s %p\n", debugstr_w(lpszPath), pidl);
1079     return pidl;
1080 }
1081
1082 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW(LPCVOID lpszPath)
1083 {
1084     if ( SHELL_OsIsUnicode())
1085         return SHSimpleIDListFromPathW (lpszPath);
1086     return SHSimpleIDListFromPathA (lpszPath);
1087 }
1088
1089 /*************************************************************************
1090  * SHGetDataFromIDListA [SHELL32.247]
1091  *
1092  * NOTES
1093  *  the pidl can be a simple one. since we can't get the path out of the pidl
1094  *  we have to take all data from the pidl
1095  */
1096 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1097                                     int nFormat, LPVOID dest, int len)
1098 {
1099     LPSTR filename, shortname;
1100     WIN32_FIND_DATAA * pfd;
1101
1102     TRACE_(shell)("%p, %p, %d, %p, %d.\n", psf, pidl, nFormat, dest, len);
1103
1104     pdump(pidl);
1105     if (!psf || !dest)
1106         return E_INVALIDARG;
1107
1108     switch (nFormat)
1109     {
1110     case SHGDFIL_FINDDATA:
1111         pfd = dest;
1112
1113         if (_ILIsDrive(pidl) || _ILIsSpecialFolder(pidl))
1114             return E_INVALIDARG;
1115
1116         if (len < sizeof(WIN32_FIND_DATAA))
1117             return E_INVALIDARG;
1118
1119         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1120         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1121         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1122         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1123
1124         filename = _ILGetTextPointer(pidl);
1125         shortname = _ILGetSTextPointer(pidl);
1126
1127         if (filename)
1128             lstrcpynA(pfd->cFileName, filename, sizeof(pfd->cFileName));
1129         else
1130             pfd->cFileName[0] = '\0';
1131
1132         if (shortname)
1133             lstrcpynA(pfd->cAlternateFileName, shortname, sizeof(pfd->cAlternateFileName));
1134         else
1135             pfd->cAlternateFileName[0] = '\0';
1136         return S_OK;
1137
1138     case SHGDFIL_NETRESOURCE:
1139     case SHGDFIL_DESCRIPTIONID:
1140         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1141         break;
1142
1143     default:
1144         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1145     }
1146
1147     return E_INVALIDARG;
1148 }
1149
1150 /*************************************************************************
1151  * SHGetDataFromIDListW [SHELL32.248]
1152  *
1153  */
1154 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1155                                     int nFormat, LPVOID dest, int len)
1156 {
1157     LPSTR filename, shortname;
1158     WIN32_FIND_DATAW * pfd = dest;
1159
1160     TRACE_(shell)("%p, %p, %d, %p, %d.\n", psf, pidl, nFormat, dest, len);
1161
1162     pdump(pidl);
1163
1164     if (!psf || !dest)
1165         return E_INVALIDARG;
1166
1167     switch (nFormat)
1168     {
1169     case SHGDFIL_FINDDATA:
1170         pfd = dest;
1171
1172         if (_ILIsDrive(pidl))
1173             return E_INVALIDARG;
1174
1175         if (len < sizeof(WIN32_FIND_DATAW))
1176             return E_INVALIDARG;
1177
1178         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAW));
1179         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1180         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1181         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1182
1183         filename = _ILGetTextPointer(pidl);
1184         shortname = _ILGetSTextPointer(pidl);
1185
1186         if (!filename)
1187             pfd->cFileName[0] = '\0';
1188         else if (!MultiByteToWideChar(CP_ACP, 0, filename, -1, pfd->cFileName, MAX_PATH))
1189             pfd->cFileName[MAX_PATH-1] = 0;
1190
1191         if (!shortname)
1192             pfd->cAlternateFileName[0] = '\0';
1193         else if (!MultiByteToWideChar(CP_ACP, 0, shortname, -1, pfd->cAlternateFileName, 14))
1194             pfd->cAlternateFileName[13] = 0;
1195         return S_OK;
1196
1197     case SHGDFIL_NETRESOURCE:
1198     case SHGDFIL_DESCRIPTIONID:
1199         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1200         break;
1201
1202     default:
1203         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1204     }
1205
1206     return E_INVALIDARG;
1207 }
1208
1209 /*************************************************************************
1210  * SHGetPathFromIDListA        [SHELL32.@][NT 4.0: SHELL32.220]
1211  *
1212  * PARAMETERS
1213  *  pidl,   [IN] pidl
1214  *  pszPath [OUT] path
1215  *
1216  * RETURNS
1217  *  path from a passed PIDL.
1218  *
1219  * NOTES
1220  *    NULL returns FALSE
1221  *    desktop pidl gives path to desktop directory back
1222  *    special pidls returning FALSE
1223  */
1224 BOOL WINAPI SHGetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath)
1225 {
1226     WCHAR wszPath[MAX_PATH];
1227     BOOL bSuccess;
1228
1229     bSuccess = SHGetPathFromIDListW(pidl, wszPath);
1230     WideCharToMultiByte(CP_ACP, 0, wszPath, -1, pszPath, MAX_PATH, NULL, NULL);
1231
1232     return bSuccess;
1233 }
1234
1235 /*************************************************************************
1236  * SHGetPathFromIDListW             [SHELL32.@]
1237  *
1238  * See SHGetPathFromIDListA.
1239  */
1240 BOOL WINAPI SHGetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath)
1241 {
1242     return SHGetPathFromIDListEx(pidl, pszPath, MAX_PATH, 0);
1243 }
1244
1245 /*************************************************************************
1246  * SHGetPathFromIDListEx             [SHELL32.@]
1247  */
1248 BOOL WINAPI SHGetPathFromIDListEx(LPCITEMIDLIST pidl, WCHAR *path, DWORD path_size, GPFIDL_FLAGS flags)
1249 {
1250     HRESULT hr;
1251     LPCITEMIDLIST pidlLast;
1252     LPSHELLFOLDER psfFolder;
1253     DWORD dwAttributes;
1254     STRRET strret;
1255
1256     TRACE_(shell)("(pidl=%p,%p,%lu,%x)\n", pidl, path, path_size, flags);
1257     pdump(pidl);
1258
1259     if (flags != GPFIDL_DEFAULT)
1260         FIXME("Unsupported flags %x\n", flags);
1261
1262     *path = '\0';
1263     if (!pidl)
1264         return FALSE;
1265
1266     hr = SHBindToParent(pidl, &IID_IShellFolder, (VOID**)&psfFolder, &pidlLast);
1267     if (FAILED(hr)) return FALSE;
1268
1269     dwAttributes = SFGAO_FILESYSTEM;
1270     hr = IShellFolder_GetAttributesOf(psfFolder, 1, &pidlLast, &dwAttributes);
1271     if (FAILED(hr) || !(dwAttributes & SFGAO_FILESYSTEM)) {
1272         IShellFolder_Release(psfFolder);
1273         return FALSE;
1274     }
1275
1276     hr = IShellFolder_GetDisplayNameOf(psfFolder, pidlLast, SHGDN_FORPARSING, &strret);
1277     IShellFolder_Release(psfFolder);
1278     if (FAILED(hr)) return FALSE;
1279
1280     hr = StrRetToBufW(&strret, pidlLast, path, path_size);
1281
1282     TRACE_(shell)("-- %s, 0x%08lx\n",debugstr_w(path), hr);
1283     return SUCCEEDED(hr);
1284 }
1285
1286 /*************************************************************************
1287  *    SHBindToParent        [shell version 5.0]
1288  */
1289 HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
1290 {
1291     return SHBindToFolderIDListParent(NULL, pidl, riid, ppv, ppidlLast);
1292 }
1293
1294 /*************************************************************************
1295  * SHBindToFolderIDListParent             [SHELL32.@]
1296  */
1297 HRESULT WINAPI SHBindToFolderIDListParent(IShellFolder *psf, LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
1298 {
1299     IShellFolder *psfDesktop = NULL;
1300     HRESULT hr;
1301
1302     TRACE_(shell)("%p,%p,%s\n", psf, pidl, debugstr_guid(riid));
1303     pdump(pidl);
1304
1305     if (ppidlLast)
1306         *ppidlLast = NULL;
1307
1308     if (!pidl || !ppv)
1309         return E_INVALIDARG;
1310
1311     *ppv = NULL;
1312
1313     if (!psf)
1314     {
1315         hr = SHGetDesktopFolder(&psfDesktop);
1316         if (FAILED(hr))
1317             return hr;
1318         psf = psfDesktop;
1319     }
1320
1321     if (_ILIsPidlSimple(pidl))
1322     {
1323         /* we are on desktop level */
1324         hr = IShellFolder_QueryInterface(psf, riid, ppv);
1325     }
1326     else
1327     {
1328         LPITEMIDLIST pidlParent = ILClone(pidl);
1329         ILRemoveLastID(pidlParent);
1330         hr = IShellFolder_BindToObject(psf, pidlParent, NULL, riid, ppv);
1331         ILFree(pidlParent);
1332     }
1333
1334     if (psfDesktop)
1335         IShellFolder_Release(psfDesktop);
1336
1337     if (SUCCEEDED(hr) && ppidlLast)
1338         *ppidlLast = ILFindLastID(pidl);
1339
1340     TRACE_(shell)("-- ppv=%p pidl=%p ret=0x%08lx\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
1341     return hr;
1342 }
1343
1344 HRESULT WINAPI SHBindToObject(IShellFolder *psf, LPCITEMIDLIST pidl, IBindCtx *pbc, REFIID riid, void **ppv)
1345 {
1346     IShellFolder *psfDesktop = NULL;
1347     HRESULT hr;
1348
1349     TRACE_(shell)("%p,%p,%p,%s,%p\n", psf, pidl, pbc, debugstr_guid(riid), ppv);
1350     pdump(pidl);
1351
1352     if (!ppv)
1353         return E_INVALIDARG;
1354
1355     *ppv = NULL;
1356
1357     if (!psf)
1358     {
1359         hr = SHGetDesktopFolder(&psfDesktop);
1360         if (FAILED(hr))
1361             return hr;
1362         psf = psfDesktop;
1363     }
1364
1365     if (_ILIsPidlSimple(pidl))
1366         /* we are on desktop level */
1367         hr = IShellFolder_QueryInterface(psf, riid, ppv);
1368     else
1369         hr = IShellFolder_BindToObject(psf, pidl, pbc, riid, ppv);
1370
1371     if (psfDesktop)
1372         IShellFolder_Release(psfDesktop);
1373
1374     TRACE_(shell)("-- ppv=%p ret=0x%08lx\n", *ppv, hr);
1375     return hr;
1376 }
1377
1378
1379 /*************************************************************************
1380  * SHParseDisplayName             [SHELL32.@]
1381  */
1382 HRESULT WINAPI SHParseDisplayName(LPCWSTR name, IBindCtx *bindctx, LPITEMIDLIST *pidlist,
1383                                   SFGAOF attr_in, SFGAOF *attr_out)
1384 {
1385     IShellFolder *desktop;
1386     HRESULT hr;
1387
1388     TRACE("%s %p %p %ld %p\n", debugstr_w(name), bindctx, pidlist, attr_in, attr_out);
1389
1390     *pidlist = NULL;
1391
1392     if (!name) return E_INVALIDARG;
1393
1394     hr = SHGetDesktopFolder(&desktop);
1395     if (hr != S_OK) return hr;
1396
1397     hr = IShellFolder_ParseDisplayName(desktop, NULL, bindctx, (LPWSTR)name, NULL, pidlist, &attr_in);
1398     if (attr_out) *attr_out = attr_in;
1399
1400     IShellFolder_Release(desktop);
1401
1402     return hr;
1403 }
1404
1405 /*************************************************************************
1406  * SHGetNameFromIDList             [SHELL32.@]
1407  */
1408 HRESULT WINAPI SHGetNameFromIDList(PCIDLIST_ABSOLUTE pidl, SIGDN sigdnName, PWSTR *ppszName)
1409 {
1410     IShellFolder *psfparent;
1411     LPCITEMIDLIST child_pidl;
1412     STRRET disp_name;
1413     HRESULT ret;
1414
1415     TRACE("%p 0x%08x %p\n", pidl, sigdnName, ppszName);
1416
1417     *ppszName = NULL;
1418     ret = SHBindToParent(pidl, &IID_IShellFolder, (void**)&psfparent, &child_pidl);
1419     if(SUCCEEDED(ret))
1420     {
1421         switch(sigdnName)
1422         {
1423                                                 /* sigdnName & 0xffff */
1424         case SIGDN_NORMALDISPLAY:               /* SHGDN_NORMAL */
1425         case SIGDN_PARENTRELATIVEPARSING:       /* SHGDN_INFOLDER | SHGDN_FORPARSING */
1426         case SIGDN_PARENTRELATIVEEDITING:       /* SHGDN_INFOLDER | SHGDN_FOREDITING */
1427         case SIGDN_DESKTOPABSOLUTEPARSING:      /* SHGDN_FORPARSING */
1428         case SIGDN_DESKTOPABSOLUTEEDITING:      /* SHGDN_FOREDITING | SHGDN_FORADDRESSBAR*/
1429         case SIGDN_PARENTRELATIVEFORADDRESSBAR: /* SIGDN_INFOLDER | SHGDN_FORADDRESSBAR */
1430         case SIGDN_PARENTRELATIVE:              /* SIGDN_INFOLDER */
1431
1432             disp_name.uType = STRRET_WSTR;
1433             ret = IShellFolder_GetDisplayNameOf(psfparent, child_pidl,
1434                                                 sigdnName & 0xffff,
1435                                                 &disp_name);
1436             if(SUCCEEDED(ret))
1437                 ret = StrRetToStrW(&disp_name, pidl, ppszName);
1438
1439             break;
1440
1441         case SIGDN_FILESYSPATH:
1442             *ppszName = CoTaskMemAlloc(sizeof(WCHAR)*MAX_PATH);
1443             if(SHGetPathFromIDListW(pidl, *ppszName))
1444             {
1445                 TRACE("Got string %s\n", debugstr_w(*ppszName));
1446                 ret = S_OK;
1447             }
1448             else
1449             {
1450                 CoTaskMemFree(*ppszName);
1451                 ret = E_INVALIDARG;
1452             }
1453             break;
1454
1455         case SIGDN_URL:
1456         default:
1457             FIXME("Unsupported SIGDN %x\n", sigdnName);
1458             ret = E_FAIL;
1459         }
1460
1461         IShellFolder_Release(psfparent);
1462     }
1463     return ret;
1464 }
1465
1466 /*************************************************************************
1467  * SHGetIDListFromObject             [SHELL32.@]
1468  */
1469 HRESULT WINAPI SHGetIDListFromObject(IUnknown *punk, PIDLIST_ABSOLUTE *ppidl)
1470 {
1471     IPersistIDList *ppersidl;
1472     IPersistFolder2 *ppf2;
1473     IDataObject *pdo;
1474     IFolderView *pfv;
1475     HRESULT ret;
1476
1477     if(!punk)
1478         return E_NOINTERFACE;
1479
1480     *ppidl = NULL;
1481
1482     /* Try IPersistIDList */
1483     ret = IUnknown_QueryInterface(punk, &IID_IPersistIDList, (void**)&ppersidl);
1484     if(SUCCEEDED(ret))
1485     {
1486         TRACE("IPersistIDList (%p)\n", ppersidl);
1487         ret = IPersistIDList_GetIDList(ppersidl, ppidl);
1488         IPersistIDList_Release(ppersidl);
1489         if(SUCCEEDED(ret))
1490             return ret;
1491     }
1492
1493     /* Try IPersistFolder2 */
1494     ret = IUnknown_QueryInterface(punk, &IID_IPersistFolder2, (void**)&ppf2);
1495     if(SUCCEEDED(ret))
1496     {
1497         TRACE("IPersistFolder2 (%p)\n", ppf2);
1498         ret = IPersistFolder2_GetCurFolder(ppf2, ppidl);
1499         IPersistFolder2_Release(ppf2);
1500         if(SUCCEEDED(ret))
1501             return ret;
1502     }
1503
1504     /* Try IDataObject */
1505     ret = IUnknown_QueryInterface(punk, &IID_IDataObject, (void**)&pdo);
1506     if(SUCCEEDED(ret))
1507     {
1508         IShellItem *psi;
1509         TRACE("IDataObject (%p)\n", pdo);
1510         ret = SHGetItemFromDataObject(pdo, DOGIF_ONLY_IF_ONE,
1511                                       &IID_IShellItem, (void**)&psi);
1512         if(SUCCEEDED(ret))
1513         {
1514             ret = SHGetIDListFromObject((IUnknown*)psi, ppidl);
1515             IShellItem_Release(psi);
1516         }
1517         IDataObject_Release(pdo);
1518
1519         if(SUCCEEDED(ret))
1520             return ret;
1521     }
1522
1523     /* Try IFolderView */
1524     ret = IUnknown_QueryInterface(punk, &IID_IFolderView, (void**)&pfv);
1525     if(SUCCEEDED(ret))
1526     {
1527         IShellFolder *psf;
1528         TRACE("IFolderView (%p)\n", pfv);
1529         ret = IFolderView_GetFolder(pfv, &IID_IShellFolder, (void**)&psf);
1530         if(SUCCEEDED(ret))
1531         {
1532             /* We might be able to get IPersistFolder2 from a shellfolder. */
1533             ret = SHGetIDListFromObject((IUnknown*)psf, ppidl);
1534             IShellFolder_Release(psf);
1535         }
1536         IFolderView_Release(pfv);
1537         return ret;
1538     }
1539
1540     return ret;
1541 }
1542
1543 /**************************************************************************
1544  *
1545  *        internal functions
1546  *
1547  *    ### 1. section creating pidls ###
1548  *
1549  *************************************************************************
1550  */
1551
1552 /* Basic PIDL constructor.  Allocates size + 5 bytes, where:
1553  * - two bytes are SHITEMID.cb
1554  * - one byte is PIDLDATA.type
1555  * - two bytes are the NULL PIDL terminator
1556  * Sets type of the returned PIDL to type.
1557  */
1558 static LPITEMIDLIST _ILAlloc(PIDLTYPE type, unsigned int size)
1559 {
1560     LPITEMIDLIST pidlOut = NULL;
1561
1562     pidlOut = SHAlloc(size + 5);
1563     if(pidlOut)
1564     {
1565         LPPIDLDATA pData;
1566         LPITEMIDLIST pidlNext;
1567
1568         ZeroMemory(pidlOut, size + 5);
1569         pidlOut->mkid.cb = size + 3;
1570
1571         pData = _ILGetDataPointer(pidlOut);
1572         if (pData)
1573             pData->type = type;
1574
1575         pidlNext = ILGetNext(pidlOut);
1576         if (pidlNext)
1577             pidlNext->mkid.cb = 0x00;
1578         TRACE("-- (pidl=%p, size=%u)\n", pidlOut, size);
1579     }
1580
1581     return pidlOut;
1582 }
1583
1584 LPITEMIDLIST _ILCreateDesktop(void)
1585 {
1586     LPITEMIDLIST ret;
1587
1588     TRACE("()\n");
1589     ret = SHAlloc(sizeof(*ret));
1590     if (ret)
1591         ret->mkid.cb = 0;
1592     return ret;
1593 }
1594
1595 LPITEMIDLIST _ILCreateMyComputer(void)
1596 {
1597     TRACE("()\n");
1598     return _ILCreateGuid(PT_GUID, &CLSID_MyComputer);
1599 }
1600
1601 LPITEMIDLIST _ILCreateMyDocuments(void)
1602 {
1603     TRACE("()\n");
1604     return _ILCreateGuid(PT_GUID, &CLSID_MyDocuments);
1605 }
1606
1607 LPITEMIDLIST _ILCreateIExplore(void)
1608 {
1609     TRACE("()\n");
1610     return _ILCreateGuid(PT_GUID, &CLSID_Internet);
1611 }
1612
1613 LPITEMIDLIST _ILCreateControlPanel(void)
1614 {
1615     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1616
1617     TRACE("()\n");
1618     if (parent)
1619     {
1620         LPITEMIDLIST cpl = _ILCreateGuid(PT_SHELLEXT, &CLSID_ControlPanel);
1621
1622         if (cpl)
1623         {
1624             ret = ILCombine(parent, cpl);
1625             SHFree(cpl);
1626         }
1627         SHFree(parent);
1628     }
1629     return ret;
1630 }
1631
1632 LPITEMIDLIST _ILCreatePrinters(void)
1633 {
1634     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1635
1636     TRACE("()\n");
1637     if (parent)
1638     {
1639         LPITEMIDLIST printers = _ILCreateGuid(PT_YAGUID, &CLSID_Printers);
1640
1641         if (printers)
1642         {
1643             ret = ILCombine(parent, printers);
1644             SHFree(printers);
1645         }
1646         SHFree(parent);
1647     }
1648     return ret;
1649 }
1650
1651 LPITEMIDLIST _ILCreateNetwork(void)
1652 {
1653     TRACE("()\n");
1654     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1655 }
1656
1657 LPITEMIDLIST _ILCreateBitBucket(void)
1658 {
1659     TRACE("()\n");
1660     return _ILCreateGuid(PT_GUID, &CLSID_RecycleBin);
1661 }
1662
1663 LPITEMIDLIST _ILCreateNetHood(void)
1664 {
1665     TRACE("()\n");
1666     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1667 }
1668
1669 LPITEMIDLIST _ILCreateGuid(PIDLTYPE type, REFIID guid)
1670 {
1671     LPITEMIDLIST pidlOut;
1672
1673     if (type == PT_SHELLEXT || type == PT_GUID || type == PT_YAGUID)
1674     {
1675         pidlOut = _ILAlloc(type, sizeof(GUIDStruct));
1676         if (pidlOut)
1677         {
1678             LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1679
1680             pData->u.guid.guid = *guid;
1681             TRACE("-- create GUID-pidl %s\n",
1682                   debugstr_guid(&(pData->u.guid.guid)));
1683         }
1684     }
1685     else
1686     {
1687         WARN("%d: invalid type for GUID\n", type);
1688         pidlOut = NULL;
1689     }
1690     return pidlOut;
1691 }
1692
1693 LPITEMIDLIST _ILCreateGuidFromStrA(LPCSTR szGUID)
1694 {
1695     IID iid;
1696
1697     if (FAILED(SHCLSIDFromStringA(szGUID, &iid)))
1698     {
1699         ERR("%s is not a GUID\n", szGUID);
1700         return NULL;
1701     }
1702     return _ILCreateGuid(PT_GUID, &iid);
1703 }
1704
1705 LPITEMIDLIST _ILCreateGuidFromStrW(LPCWSTR szGUID)
1706 {
1707     IID iid;
1708
1709     if (FAILED(SHCLSIDFromStringW(szGUID, &iid)))
1710     {
1711         ERR("%s is not a GUID\n", debugstr_w(szGUID));
1712         return NULL;
1713     }
1714     return _ILCreateGuid(PT_GUID, &iid);
1715 }
1716
1717 LPITEMIDLIST _ILCreateFromFindDataW( const WIN32_FIND_DATAW *wfd )
1718 {
1719     DWORD   wlen, alen;
1720     LPITEMIDLIST pidl;
1721     PIDLTYPE type;
1722
1723     if (!wfd)
1724         return NULL;
1725
1726     TRACE("(%s, %s)\n",debugstr_w(wfd->cAlternateFileName), debugstr_w(wfd->cFileName));
1727
1728     type = (wfd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? PT_FOLDER : PT_VALUE;
1729
1730     alen = WideCharToMultiByte( CP_ACP, 0, wfd->cFileName, -1, NULL, 0, NULL, NULL );
1731     wlen = lstrlenW(wfd->cFileName) + 1;
1732     pidl = _ILAlloc(type, FIELD_OFFSET(FileStruct, szNames[alen + (alen & 1)]) +
1733                     FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD));
1734     if (pidl)
1735     {
1736         LPPIDLDATA pData = _ILGetDataPointer(pidl);
1737         FileStruct *fs = &pData->u.file;
1738         FileStructW *fsw;
1739         WORD *pOffsetW;
1740
1741         FileTimeToDosDateTime( &wfd->ftLastWriteTime, &fs->uFileDate, &fs->uFileTime);
1742         fs->dwFileSize = wfd->nFileSizeLow;
1743         fs->uFileAttribs = wfd->dwFileAttributes;
1744         WideCharToMultiByte( CP_ACP, 0, wfd->cFileName, -1, fs->szNames, alen, NULL, NULL );
1745
1746         fsw = (FileStructW*)(pData->u.file.szNames + alen + (alen & 0x1));
1747         fsw->cbLen = FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD);
1748         FileTimeToDosDateTime( &wfd->ftCreationTime, &fsw->uCreationDate, &fsw->uCreationTime);
1749         FileTimeToDosDateTime( &wfd->ftLastAccessTime, &fsw->uLastAccessDate, &fsw->uLastAccessTime);
1750         memcpy(fsw->wszName, wfd->cFileName, wlen * sizeof(WCHAR));
1751
1752         pOffsetW = (WORD*)((LPBYTE)pidl + pidl->mkid.cb - sizeof(WORD));
1753         *pOffsetW = (LPBYTE)fsw - (LPBYTE)pidl;
1754         TRACE("-- Set Value: %s\n",debugstr_w(fsw->wszName));
1755     }
1756     return pidl;
1757
1758 }
1759
1760 HRESULT _ILCreateFromPathW(LPCWSTR szPath, LPITEMIDLIST* ppidl)
1761 {
1762     HANDLE hFile;
1763     WIN32_FIND_DATAW stffile;
1764
1765     if (!ppidl)
1766         return E_INVALIDARG;
1767
1768     hFile = FindFirstFileW(szPath, &stffile);
1769     if (hFile == INVALID_HANDLE_VALUE)
1770         return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
1771
1772     FindClose(hFile);
1773
1774     *ppidl = _ILCreateFromFindDataW(&stffile);
1775
1776     return *ppidl ? S_OK : E_OUTOFMEMORY;
1777 }
1778
1779 LPITEMIDLIST _ILCreateDrive(LPCWSTR lpszNew)
1780 {
1781     LPITEMIDLIST pidlOut;
1782
1783     TRACE("(%s)\n",debugstr_w(lpszNew));
1784
1785     pidlOut = _ILAlloc(PT_DRIVE, sizeof(DriveStruct));
1786     if (pidlOut)
1787     {
1788         LPSTR pszDest;
1789
1790         pszDest = _ILGetTextPointer(pidlOut);
1791         if (pszDest)
1792         {
1793             strcpy(pszDest, "x:\\");
1794             pszDest[0]=towupper(lpszNew[0]);
1795             TRACE("-- create Drive: %s\n", debugstr_a(pszDest));
1796         }
1797     }
1798     return pidlOut;
1799 }
1800
1801 LPITEMIDLIST _ILCreateEntireNetwork(void)
1802 {
1803     LPITEMIDLIST pidlOut;
1804
1805     TRACE("\n");
1806
1807     pidlOut = _ILAlloc(PT_NETWORK, FIELD_OFFSET(PIDLDATA, u.network.szNames[sizeof("Entire Network")]));
1808     if (pidlOut)
1809     {
1810         LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1811
1812         pData->u.network.dummy = 0;
1813         strcpy(pData->u.network.szNames, "Entire Network");
1814     }
1815     return pidlOut;
1816 }
1817
1818 /**************************************************************************
1819  *  _ILGetDrive()
1820  *
1821  *  Gets the text for the drive eg. 'c:\'
1822  *
1823  * RETURNS
1824  *  strlen (lpszText)
1825  */
1826 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1827 {
1828     TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1829
1830     if(_ILIsMyComputer(pidl))
1831         pidl = ILGetNext(pidl);
1832
1833     if (pidl && _ILIsDrive(pidl))
1834         return _ILSimpleGetText(pidl, pOut, uSize);
1835
1836     return 0;
1837 }
1838
1839 /**************************************************************************
1840  *
1841  *    ### 2. section testing pidls ###
1842  *
1843  **************************************************************************
1844  *  _ILIsUnicode()
1845  *  _ILIsDesktop()
1846  *  _ILIsMyComputer()
1847  *  _ILIsSpecialFolder()
1848  *  _ILIsDrive()
1849  *  _ILIsFolder()
1850  *  _ILIsValue()
1851  *  _ILIsPidlSimple()
1852  */
1853 BOOL _ILIsUnicode(LPCITEMIDLIST pidl)
1854 {
1855     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1856
1857     TRACE("(%p)\n",pidl);
1858
1859     return (pidl && lpPData && PT_VALUEW == lpPData->type);
1860 }
1861
1862 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1863 {
1864     TRACE("(%p)\n",pidl);
1865
1866     return !pidl || !pidl->mkid.cb;
1867 }
1868
1869 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1870 {
1871     REFIID iid = _ILGetGUIDPointer(pidl);
1872
1873     TRACE("(%p)\n",pidl);
1874
1875     if (iid)
1876         return IsEqualIID(iid, &CLSID_MyComputer);
1877     return FALSE;
1878 }
1879
1880 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1881 {
1882     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1883
1884     TRACE("(%p)\n",pidl);
1885
1886     return (pidl && ( (lpPData && (PT_GUID== lpPData->type || PT_SHELLEXT== lpPData->type || PT_YAGUID == lpPData->type)) ||
1887               (pidl && pidl->mkid.cb == 0x00)
1888             ));
1889 }
1890
1891 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1892 {
1893     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1894
1895     TRACE("(%p)\n",pidl);
1896
1897     return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1898                     PT_DRIVE1 == lpPData->type ||
1899                     PT_DRIVE2 == lpPData->type ||
1900                     PT_DRIVE3 == lpPData->type));
1901 }
1902
1903 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1904 {
1905     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1906
1907     TRACE("(%p)\n",pidl);
1908
1909     return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1910 }
1911
1912 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1913 {
1914     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1915
1916     TRACE("(%p)\n",pidl);
1917
1918     return (pidl && lpPData && PT_VALUE == lpPData->type);
1919 }
1920
1921 BOOL _ILIsCPanelStruct(LPCITEMIDLIST pidl)
1922 {
1923     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1924
1925     TRACE("(%p)\n",pidl);
1926
1927     return (pidl && lpPData && (lpPData->type == 0));
1928 }
1929
1930 /**************************************************************************
1931  *    _ILIsPidlSimple
1932  */
1933 BOOL _ILIsPidlSimple(LPCITEMIDLIST pidl)
1934 {
1935     BOOL ret = TRUE;
1936
1937     if(! _ILIsDesktop(pidl))    /* pidl=NULL or mkid.cb=0 */
1938     {
1939         WORD len = pidl->mkid.cb;
1940         LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((const BYTE*)pidl) + len );
1941
1942         if (pidlnext->mkid.cb)
1943             ret = FALSE;
1944     }
1945
1946     TRACE("%s\n", ret ? "Yes" : "No");
1947     return ret;
1948 }
1949
1950 /**************************************************************************
1951  *
1952  *    ### 3. section getting values from pidls ###
1953  */
1954
1955  /**************************************************************************
1956  *  _ILSimpleGetText
1957  *
1958  * gets the text for the first item in the pidl (eg. simple pidl)
1959  *
1960  * returns the length of the string
1961  */
1962 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
1963 {
1964     DWORD        dwReturn=0;
1965     LPSTR        szSrc;
1966     LPWSTR       szSrcW;
1967     GUID const * riid;
1968     char szTemp[MAX_PATH];
1969
1970     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1971
1972     if (!pidl)
1973         return 0;
1974
1975     if (szOut)
1976         *szOut = 0;
1977
1978     if (_ILIsDesktop(pidl))
1979     {
1980         /* desktop */
1981         if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1982         {
1983             if (szOut)
1984                 lstrcpynA(szOut, szTemp, uOutSize);
1985
1986             dwReturn = strlen (szTemp);
1987         }
1988     }
1989     else if (( szSrc = _ILGetTextPointer(pidl) ))
1990     {
1991         /* filesystem */
1992         if (szOut)
1993             lstrcpynA(szOut, szSrc, uOutSize);
1994
1995         dwReturn = strlen(szSrc);
1996     }
1997     else if (( szSrcW = _ILGetTextPointerW(pidl) ))
1998     {
1999         /* unicode filesystem */
2000         WideCharToMultiByte(CP_ACP,0,szSrcW, -1, szTemp, MAX_PATH, NULL, NULL);
2001
2002         if (szOut)
2003             lstrcpynA(szOut, szTemp, uOutSize);
2004
2005         dwReturn = strlen (szTemp);
2006     }
2007     else if (( riid = _ILGetGUIDPointer(pidl) ))
2008     {
2009         /* special folder */
2010         if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
2011         {
2012             if (szOut)
2013                 lstrcpynA(szOut, szTemp, uOutSize);
2014
2015             dwReturn = strlen (szTemp);
2016         }
2017     }
2018     else
2019     {
2020         ERR("-- no text\n");
2021     }
2022
2023     TRACE("-- (%p=%s 0x%08lx)\n",szOut,debugstr_a(szOut),dwReturn);
2024     return dwReturn;
2025 }
2026
2027  /**************************************************************************
2028  *  _ILSimpleGetTextW
2029  *
2030  * gets the text for the first item in the pidl (eg. simple pidl)
2031  *
2032  * returns the length of the string
2033  */
2034 DWORD _ILSimpleGetTextW (LPCITEMIDLIST pidl, LPWSTR szOut, UINT uOutSize)
2035 {
2036     DWORD   dwReturn;
2037     FileStructW *pFileStructW = _ILGetFileStructW(pidl);
2038
2039     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
2040
2041     if (pFileStructW) {
2042         lstrcpynW(szOut, pFileStructW->wszName, uOutSize);
2043         dwReturn = lstrlenW(pFileStructW->wszName);
2044     } else {
2045         GUID const * riid;
2046         WCHAR szTemp[MAX_PATH];
2047         LPSTR szSrc;
2048         LPWSTR szSrcW;
2049         dwReturn=0;
2050
2051         if (!pidl)
2052             return 0;
2053
2054         if (szOut)
2055             *szOut = 0;
2056
2057         if (_ILIsDesktop(pidl))
2058         {
2059             /* desktop */
2060             if (HCR_GetClassNameW(&CLSID_ShellDesktop, szTemp, MAX_PATH))
2061             {
2062                 if (szOut)
2063                     lstrcpynW(szOut, szTemp, uOutSize);
2064
2065                 dwReturn = lstrlenW (szTemp);
2066             }
2067         }
2068         else if (( szSrcW = _ILGetTextPointerW(pidl) ))
2069         {
2070             /* unicode filesystem */
2071             if (szOut)
2072                 lstrcpynW(szOut, szSrcW, uOutSize);
2073
2074             dwReturn = lstrlenW(szSrcW);
2075         }
2076         else if (( szSrc = _ILGetTextPointer(pidl) ))
2077         {
2078             /* filesystem */
2079             MultiByteToWideChar(CP_ACP, 0, szSrc, -1, szTemp, MAX_PATH);
2080
2081             if (szOut)
2082                 lstrcpynW(szOut, szTemp, uOutSize);
2083
2084             dwReturn = lstrlenW (szTemp);
2085         }
2086         else if (( riid = _ILGetGUIDPointer(pidl) ))
2087         {
2088             /* special folder */
2089             if ( HCR_GetClassNameW(riid, szTemp, MAX_PATH) )
2090             {
2091                 if (szOut)
2092                     lstrcpynW(szOut, szTemp, uOutSize);
2093
2094                 dwReturn = lstrlenW (szTemp);
2095             }
2096         }
2097         else
2098         {
2099             ERR("-- no text\n");
2100         }
2101     }
2102
2103     TRACE("-- (%p=%s 0x%08lx)\n",szOut,debugstr_w(szOut),dwReturn);
2104     return dwReturn;
2105 }
2106
2107 /**************************************************************************
2108  *
2109  *    ### 4. getting pointers to parts of pidls ###
2110  *
2111  **************************************************************************
2112  *  _ILGetDataPointer()
2113  */
2114 LPPIDLDATA _ILGetDataPointer(LPCITEMIDLIST pidl)
2115 {
2116     if(!_ILIsEmpty(pidl))
2117         return (LPPIDLDATA)pidl->mkid.abID;
2118     return NULL;
2119 }
2120
2121 /**************************************************************************
2122  *  _ILGetTextPointerW()
2123  * gets a pointer to the unicode long filename string stored in the pidl
2124  */
2125 static LPWSTR _ILGetTextPointerW(LPCITEMIDLIST pidl)
2126 {
2127     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
2128
2129     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2130
2131     if (!pdata)
2132         return NULL;
2133
2134     switch (pdata->type)
2135     {
2136     case PT_GUID:
2137     case PT_SHELLEXT:
2138     case PT_YAGUID:
2139         return NULL;
2140
2141     case PT_DRIVE:
2142     case PT_DRIVE1:
2143     case PT_DRIVE2:
2144     case PT_DRIVE3:
2145         /*return (LPSTR)&(pdata->u.drive.szDriveName);*/
2146         return NULL;
2147
2148     case PT_FOLDER:
2149     case PT_FOLDER1:
2150     case PT_VALUE:
2151     case PT_IESPECIAL1:
2152     case PT_IESPECIAL2:
2153         /*return (LPSTR)&(pdata->u.file.szNames);*/
2154         return NULL;
2155
2156     case PT_WORKGRP:
2157     case PT_COMP:
2158     case PT_NETWORK:
2159     case PT_NETPROVIDER:
2160     case PT_SHARE:
2161         /*return (LPSTR)&(pdata->u.network.szNames);*/
2162         return NULL;
2163
2164     case PT_VALUEW:
2165         return (LPWSTR)pdata->u.file.szNames;
2166     }
2167     return NULL;
2168 }
2169
2170
2171 /**************************************************************************
2172  *  _ILGetTextPointer()
2173  * gets a pointer to the long filename string stored in the pidl
2174  */
2175 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
2176 {
2177     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
2178
2179     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2180
2181     if (!pdata)
2182         return NULL;
2183
2184     switch (pdata->type)
2185     {
2186     case PT_GUID:
2187     case PT_SHELLEXT:
2188     case PT_YAGUID:
2189         return NULL;
2190
2191     case PT_DRIVE:
2192     case PT_DRIVE1:
2193     case PT_DRIVE2:
2194     case PT_DRIVE3:
2195         return pdata->u.drive.szDriveName;
2196
2197     case PT_FOLDER:
2198     case PT_FOLDER1:
2199     case PT_VALUE:
2200     case PT_IESPECIAL1:
2201     case PT_IESPECIAL2:
2202         return pdata->u.file.szNames;
2203
2204     case PT_WORKGRP:
2205     case PT_COMP:
2206     case PT_NETWORK:
2207     case PT_NETPROVIDER:
2208     case PT_SHARE:
2209         return pdata->u.network.szNames;
2210     }
2211     return NULL;
2212 }
2213
2214 /**************************************************************************
2215  *  _ILGetSTextPointer()
2216  * gets a pointer to the short filename string stored in the pidl
2217  */
2218 static LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
2219 {
2220     /* TRACE(pidl,"(pidl%p)\n", pidl); */
2221
2222     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2223
2224     if (!pdata)
2225         return NULL;
2226
2227     switch (pdata->type)
2228     {
2229     case PT_FOLDER:
2230     case PT_VALUE:
2231     case PT_IESPECIAL1:
2232     case PT_IESPECIAL2:
2233         return pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1;
2234
2235     case PT_WORKGRP:
2236         return pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1;
2237     }
2238     return NULL;
2239 }
2240
2241 /**************************************************************************
2242  * _ILGetGUIDPointer()
2243  *
2244  * returns reference to guid stored in some pidls
2245  */
2246 IID* _ILGetGUIDPointer(LPCITEMIDLIST pidl)
2247 {
2248     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2249
2250     TRACE("%p\n", pidl);
2251
2252     if (!pdata)
2253         return NULL;
2254
2255     TRACE("pdata->type 0x%04x\n", pdata->type);
2256     switch (pdata->type)
2257     {
2258     case PT_SHELLEXT:
2259     case PT_GUID:
2260     case PT_YAGUID:
2261         return &(pdata->u.guid.guid);
2262
2263     default:
2264         TRACE("Unknown pidl type 0x%04x\n", pdata->type);
2265         break;
2266     }
2267     return NULL;
2268 }
2269
2270 /******************************************************************************
2271  * _ILGetFileStructW [Internal]
2272  *
2273  * Get pointer the a SHITEMID's FileStructW field if present
2274  *
2275  * PARAMS
2276  *  pidl [I] The SHITEMID
2277  *
2278  * RETURNS
2279  *  Success: Pointer to pidl's FileStructW field.
2280  *  Failure: NULL
2281  */
2282 FileStructW* _ILGetFileStructW(LPCITEMIDLIST pidl) {
2283     FileStructW *pFileStructW;
2284     WORD cbOffset;
2285
2286     if (!(_ILIsValue(pidl) || _ILIsFolder(pidl)))
2287         return NULL;
2288
2289     cbOffset = *(const WORD *)((const BYTE *)pidl + pidl->mkid.cb - sizeof(WORD));
2290     pFileStructW = (FileStructW*)((LPBYTE)pidl + cbOffset);
2291
2292     /* Currently I don't see a fool prove way to figure out if a pidl is for sure of WinXP
2293      * style with a FileStructW member. If we switch all our shellfolder-implementations to
2294      * the new format, this won't be a problem. For now, we do as many sanity checks as possible. */
2295     if ((cbOffset & 0x1) || /* FileStructW member is word aligned in the pidl */
2296         /* FileStructW is positioned after FileStruct */
2297         cbOffset < sizeof(pidl->mkid.cb) + sizeof(PIDLTYPE) + sizeof(FileStruct) ||
2298         /* There has to be enough space at cbOffset in the pidl to hold FileStructW and cbOffset */
2299         cbOffset > pidl->mkid.cb - sizeof(cbOffset) - sizeof(FileStructW) ||
2300         pidl->mkid.cb != cbOffset + pFileStructW->cbLen)
2301     {
2302         WARN("Invalid pidl format (cbOffset = %d)!\n", cbOffset);
2303         return NULL;
2304     }
2305
2306     return pFileStructW;
2307 }
2308
2309 /*************************************************************************
2310  * _ILGetFileDateTime
2311  *
2312  * Given the ItemIdList, get the FileTime
2313  *
2314  * PARAMS
2315  *      pidl        [I] The ItemIDList
2316  *      pFt         [I] the resulted FILETIME of the file
2317  *
2318  * RETURNS
2319  *     True if Successful
2320  *
2321  * NOTES
2322  *
2323  */
2324 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
2325 {
2326     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2327
2328     if (!pdata)
2329         return FALSE;
2330
2331     switch (pdata->type)
2332     {
2333     case PT_FOLDER:
2334     case PT_VALUE:
2335         DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
2336         break;
2337     default:
2338         return FALSE;
2339     }
2340     return TRUE;
2341 }
2342
2343 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2344 {
2345     FILETIME ft,lft;
2346     SYSTEMTIME time;
2347     BOOL ret;
2348
2349     if (_ILGetFileDateTime( pidl, &ft ))
2350     {
2351         FileTimeToLocalFileTime(&ft, &lft);
2352         FileTimeToSystemTime (&lft, &time);
2353
2354         ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
2355         if (ret)
2356         {
2357             /* Append space + time without seconds */
2358             pOut[ret-1] = ' ';
2359             GetTimeFormatA(LOCALE_USER_DEFAULT, TIME_NOSECONDS, &time, NULL, &pOut[ret], uOutSize - ret);
2360         }
2361     }
2362     else
2363     {
2364         pOut[0] = '\0';
2365         ret = FALSE;
2366     }
2367     return ret;
2368 }
2369
2370 /*************************************************************************
2371  * _ILGetFileSize
2372  *
2373  * Given the ItemIdList, get the FileSize
2374  *
2375  * PARAMS
2376  *    pidl     [I] The ItemIDList
2377  *    pOut     [I] The buffer to save the result
2378  *    uOutsize [I] The size of the buffer
2379  *
2380  * RETURNS
2381  *    The FileSize
2382  *
2383  * NOTES
2384  *    pOut can be null when no string is needed
2385  *
2386  */
2387 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2388 {
2389     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2390     DWORD dwSize;
2391
2392     if (!pdata)
2393         return 0;
2394
2395     switch (pdata->type)
2396     {
2397     case PT_VALUE:
2398         dwSize = pdata->u.file.dwFileSize;
2399         if (pOut)
2400             StrFormatKBSizeA(dwSize, pOut, uOutSize);
2401         return dwSize;
2402     }
2403     if (pOut)
2404         *pOut = 0x00;
2405     return 0;
2406 }
2407
2408 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2409 {
2410     char szTemp[MAX_PATH];
2411     const char * pPoint;
2412     LPCITEMIDLIST  pidlTemp=pidl;
2413
2414     TRACE("pidl=%p\n",pidl);
2415
2416     if (!pidl)
2417         return FALSE;
2418
2419     pidlTemp = ILFindLastID(pidl);
2420
2421     if (!_ILIsValue(pidlTemp))
2422         return FALSE;
2423     if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH))
2424         return FALSE;
2425
2426     pPoint = PathFindExtensionA(szTemp);
2427
2428     if (!*pPoint)
2429         return FALSE;
2430
2431     pPoint++;
2432     lstrcpynA(pOut, pPoint, uOutSize);
2433     TRACE("%s\n",pOut);
2434
2435     return TRUE;
2436 }
2437
2438 /*************************************************************************
2439  * _ILGetFileType
2440  *
2441  * Given the ItemIdList, get the file type description
2442  *
2443  * PARAMS
2444  *      pidl        [I] The ItemIDList (simple)
2445  *      pOut        [I] The buffer to save the result
2446  *      uOutsize    [I] The size of the buffer
2447  *
2448  * RETURNS
2449  *    nothing
2450  *
2451  * NOTES
2452  *    This function copies as much as possible into the buffer.
2453  */
2454 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2455 {
2456     if(_ILIsValue(pidl))
2457     {
2458         char sTemp[64];
2459
2460         /* "name" or "name." or any unhandled => "File" */
2461         lstrcpynA (pOut, "File", uOutSize);
2462
2463         /* If there's space for more, try to get a better description. */
2464         if (uOutSize > 6 && _ILGetExtension (pidl, sTemp, 64))
2465         {
2466             if (!( HCR_MapTypeToValueA(sTemp, sTemp, 64, TRUE)
2467                 && HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE ))
2468                 && sTemp[0])
2469             {
2470                 lstrcpynA (pOut, sTemp, uOutSize - 6);
2471                 strcat (pOut, " file");
2472             }
2473         }
2474     }
2475     else
2476         lstrcpynA(pOut, "Folder", uOutSize);
2477 }
2478
2479 /*************************************************************************
2480  * _ILGetFileAttributes
2481  *
2482  * Given the ItemIdList, get the Attrib string format
2483  *
2484  * PARAMS
2485  *      pidl        [I] The ItemIDList
2486  *      pOut        [I] The buffer to save the result
2487  *      uOutsize    [I] The size of the Buffer
2488  *
2489  * RETURNS
2490  *     Attributes
2491  *
2492  * FIXME
2493  *  return value 0 in case of error is a valid return value
2494  *
2495  */
2496 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2497 {
2498     LPPIDLDATA pData = _ILGetDataPointer(pidl);
2499     WORD wAttrib = 0;
2500     int i;
2501
2502     if (!pData)
2503         return 0;
2504
2505     switch(pData->type)
2506     {
2507     case PT_FOLDER:
2508     case PT_VALUE:
2509         wAttrib = pData->u.file.uFileAttribs;
2510         break;
2511     }
2512
2513     if(uOutSize >= 6)
2514     {
2515         i=0;
2516         if(wAttrib & FILE_ATTRIBUTE_READONLY)
2517             pOut[i++] = 'R';
2518         if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
2519             pOut[i++] = 'H';
2520         if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
2521             pOut[i++] = 'S';
2522         if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
2523             pOut[i++] = 'A';
2524         if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
2525             pOut[i++] = 'C';
2526         pOut[i] = 0x00;
2527     }
2528     return wAttrib;
2529 }
2530
2531 /*************************************************************************
2532  * ILFreeaPidl
2533  *
2534  * frees an aPidl struct
2535  */
2536 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
2537 {
2538     UINT   i;
2539
2540     if (apidl)
2541     {
2542         for (i = 0; i < cidl; i++)
2543             SHFree(apidl[i]);
2544         SHFree(apidl);
2545     }
2546 }
2547
2548 /*************************************************************************
2549  * ILCopyaPidl
2550  *
2551  * copies an aPidl struct
2552  */
2553 LPITEMIDLIST* _ILCopyaPidl(const LPCITEMIDLIST * apidlsrc, UINT cidl)
2554 {
2555     UINT i;
2556     LPITEMIDLIST *apidldest;
2557
2558     if (!apidlsrc)
2559         return NULL;
2560
2561     apidldest = SHAlloc(cidl * sizeof(LPITEMIDLIST));
2562
2563     for (i = 0; i < cidl; i++)
2564         apidldest[i] = ILClone(apidlsrc[i]);
2565
2566     return apidldest;
2567 }
2568
2569 /*************************************************************************
2570  * _ILCopyCidaToaPidl
2571  *
2572  * creates aPidl from CIDA
2573  */
2574 LPITEMIDLIST* _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, const CIDA * cida)
2575 {
2576     UINT i;
2577     LPITEMIDLIST *dst;
2578
2579     dst = SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
2580     if (!dst)
2581         return NULL;
2582
2583     if (pidl)
2584         *pidl = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[0]]));
2585
2586     for (i = 0; i < cida->cidl; i++)
2587         dst[i] = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[i + 1]]));
2588
2589     return dst;
2590 }