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  *  child = a/b -> false if bImmediate is true
 548  *  child = a/b -> true if bImmediate is false
 549  */
 550 BOOL WINAPI ILIsParent(LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
 551 {
 552     char    szData1[MAX_PATH];
 553     char    szData2[MAX_PATH];
 554     LPCITEMIDLIST pParent = pidlParent;
 555     LPCITEMIDLIST pChild = pidlChild;
 556
 557     TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
 558
 559     if (!pParent || !pChild)
 560         return FALSE;
 561
 562     while (pParent->mkid.cb && pChild->mkid.cb)
 563     {
 564         _ILSimpleGetText(pParent, szData1, MAX_PATH);
 565         _ILSimpleGetText(pChild, szData2, MAX_PATH);
 566
 567         if (strcasecmp( szData1, szData2 ))
 568             return FALSE;
 569
 570         pParent = ILGetNext(pParent);
 571         pChild = ILGetNext(pChild);
 572     }
 573
 574     /* child has shorter name than parent */
 575     if (pParent->mkid.cb)
 576         return FALSE;
 577
 578     /* not immediate descent */
 579     if ((!pChild->mkid.cb || ILGetNext(pChild)->mkid.cb) && bImmediate)
 580         return FALSE;
 581
 582     return TRUE;
 583 }
 584
 585 /*************************************************************************
 586  * ILFindChild               [SHELL32.24]
 587  *
 588  *  Compares elements from pidl1 and pidl2.
 589  *
 590  * PARAMS
 591  *  pidl1      [I]
 592  *  pidl2      [I]
 593  *
 594  * RETURNS
 595  *  pidl1 is desktop      pidl2
 596  *  pidl1 shorter pidl2   pointer to first different element of pidl2
 597  *                        if there was at least one equal element
 598  *  pidl2 shorter pidl1   0
 599  *  pidl2 equal pidl1     pointer to last 0x00-element of pidl2
 600  *
 601  * NOTES
 602  *  exported by ordinal.
 603  */
 604 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 605 {
 606     char    szData1[MAX_PATH];
 607     char    szData2[MAX_PATH];
 608
 609     LPCITEMIDLIST pidltemp1 = pidl1;
 610     LPCITEMIDLIST pidltemp2 = pidl2;
 611     LPCITEMIDLIST ret=NULL;
 612
 613     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 614
 615     /* explorer reads from registry directly (StreamMRU),
 616        so we can only check here */
 617     if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
 618         return FALSE;
 619
 620     pdump (pidl1);
 621     pdump (pidl2);
 622
 623     if (_ILIsDesktop(pidl1))
 624     {
 625         ret = pidl2;
 626     }
 627     else
 628     {
 629         while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 630         {
 631             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 632             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 633
 634             if (strcasecmp(szData1,szData2))
 635                 break;
 636
 637             pidltemp1 = ILGetNext(pidltemp1);
 638             pidltemp2 = ILGetNext(pidltemp2);
 639             ret = pidltemp2;
 640         }
 641
 642         if (pidltemp1->mkid.cb)
 643             ret = NULL; /* elements of pidl1 left*/
 644     }
 645     TRACE_(shell)("--- %p\n", ret);
 646     return (LPITEMIDLIST)ret; /* pidl 1 is shorter */
 647 }
 648
 649 /*************************************************************************
 650  * ILCombine                 [SHELL32.25]
 651  *
 652  * Concatenates two complex ItemIDLists.
 653  *
 654  * PARAMS
 655  *  pidl1      [I]   first complex ItemIDLists
 656  *  pidl2      [I]   complex ItemIDLists to append
 657  *
 658  * RETURNS
 659  *  if both pidl's == NULL      NULL
 660  *  if pidl1 == NULL            cloned pidl2
 661  *  if pidl2 == NULL            cloned pidl1
 662  *  otherwise new pidl with pidl2 appended to pidl1
 663  *
 664  * NOTES
 665  *  exported by ordinal.
 666  *  Does not destroy the passed in ItemIDLists!
 667  */
 668 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 669 {
 670     DWORD    len1,len2;
 671     LPITEMIDLIST  pidlNew;
 672
 673     TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
 674
 675     if (!pidl1 && !pidl2) return NULL;
 676
 677     pdump (pidl1);
 678     pdump (pidl2);
 679
 680     if (!pidl1)
 681     {
 682         pidlNew = ILClone(pidl2);
 683         return pidlNew;
 684     }
 685
 686     if (!pidl2)
 687     {
 688         pidlNew = ILClone(pidl1);
 689         return pidlNew;
 690     }
 691
 692     len1  = ILGetSize(pidl1)-2;
 693     len2  = ILGetSize(pidl2);
 694     pidlNew  = SHAlloc(len1+len2);
 695
 696     if (pidlNew)
 697     {
 698         memcpy(pidlNew,pidl1,len1);
 699         memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 700     }
 701
 702     /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 703     return pidlNew;
 704 }
 705
 706 /*************************************************************************
 707  *  SHGetRealIDL [SHELL32.98]
 708  *
 709  * NOTES
 710  */
 711 HRESULT WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPCITEMIDLIST pidlSimple, LPITEMIDLIST *pidlReal)
 712 {
 713     IDataObject* pDataObj;
 714     HRESULT hr;
 715
 716     hr = IShellFolder_GetUIObjectOf(lpsf, 0, 1, &pidlSimple,
 717                              &IID_IDataObject, 0, (LPVOID*)&pDataObj);
 718     if (SUCCEEDED(hr))
 719     {
 720         STGMEDIUM medium;
 721         FORMATETC fmt;
 722
 723         fmt.cfFormat = RegisterClipboardFormatW(CFSTR_SHELLIDLISTW);
 724         fmt.ptd = NULL;
 725         fmt.dwAspect = DVASPECT_CONTENT;
 726         fmt.lindex = -1;
 727         fmt.tymed = TYMED_HGLOBAL;
 728
 729         hr = IDataObject_GetData(pDataObj, &fmt, &medium);
 730
 731         IDataObject_Release(pDataObj);
 732
 733         if (SUCCEEDED(hr))
 734         {
 735             /*assert(pida->cidl==1);*/
 736             LPIDA pida = GlobalLock(medium.u.hGlobal);
 737
 738             LPCITEMIDLIST pidl_folder = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[0]);
 739             LPCITEMIDLIST pidl_child = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[1]);
 740
 741             *pidlReal = ILCombine(pidl_folder, pidl_child);
 742
 743             if (!*pidlReal)
 744                 hr = E_OUTOFMEMORY;
 745
 746             GlobalUnlock(medium.u.hGlobal);
 747             GlobalFree(medium.u.hGlobal);
 748         }
 749     }
 750
 751     return hr;
 752 }
 753
 754 /*************************************************************************
 755  *  SHLogILFromFSIL [SHELL32.95]
 756  *
 757  * NOTES
 758  *  pild = CSIDL_DESKTOP    ret = 0
 759  *  pild = CSIDL_DRIVES     ret = 0
 760  */
 761 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 762 {
 763     FIXME("(pidl=%p)\n",pidl);
 764
 765     pdump(pidl);
 766
 767     return 0;
 768 }
 769
 770 /*************************************************************************
 771  * ILGetSize                 [SHELL32.152]
 772  *
 773  * Gets the byte size of an ItemIDList including zero terminator
 774  *
 775  * PARAMS
 776  *  pidl       [I]   ItemIDList
 777  *
 778  * RETURNS
 779  *  size of pidl in bytes
 780  *
 781  * NOTES
 782  *  exported by ordinal
 783  */
 784 UINT WINAPI ILGetSize(LPCITEMIDLIST pidl)
 785 {
 786     LPCSHITEMID si = &(pidl->mkid);
 787     UINT len=0;
 788
 789     if (pidl)
 790     {
 791         while (si->cb)
 792         {
 793             len += si->cb;
 794             si  = (LPCSHITEMID)(((const BYTE*)si)+si->cb);
 795         }
 796         len += 2;
 797     }
 798     TRACE("pidl=%p size=%u\n",pidl, len);
 799     return len;
 800 }
 801
 802 /*************************************************************************
 803  * ILGetNext                 [SHELL32.153]
 804  *
 805  * Gets the next ItemID of an ItemIDList
 806  *
 807  * PARAMS
 808  *  pidl       [I]   ItemIDList
 809  *
 810  * RETURNS
 811  *  null -> null
 812  *  desktop -> null
 813  *  simple pidl -> pointer to 0x0000 element
 814  *
 815  * NOTES
 816  *  exported by ordinal.
 817  */
 818 LPITEMIDLIST WINAPI ILGetNext(LPCITEMIDLIST pidl)
 819 {
 820     WORD len;
 821
 822     TRACE("%p\n", pidl);
 823
 824     if (pidl)
 825     {
 826         len =  pidl->mkid.cb;
 827         if (len)
 828         {
 829             pidl = (LPCITEMIDLIST) (((const BYTE*)pidl)+len);
 830             TRACE("-- %p\n", pidl);
 831             return (LPITEMIDLIST)pidl;
 832         }
 833     }
 834     return NULL;
 835 }
 836
 837 /*************************************************************************
 838  * ILAppendID                [SHELL32.154]
 839  *
 840  * Adds the single ItemID item to the ItemIDList indicated by pidl.
 841  * If bEnd is FALSE, inserts the item in the front of the list,
 842  * otherwise it adds the item to the end. (???)
 843  *
 844  * PARAMS
 845  *  pidl       [I]   ItemIDList to extend
 846  *  item       [I]   ItemID to prepend/append
 847  *  bEnd       [I]   Indicates if the item should be appended
 848  *
 849  * NOTES
 850  *  Destroys the passed in idlist! (???)
 851  */
 852 LPITEMIDLIST WINAPI ILAppendID(LPITEMIDLIST pidl, LPCSHITEMID item, BOOL bEnd)
 853 {
 854     LPITEMIDLIST idlRet;
 855     LPCITEMIDLIST itemid = (LPCITEMIDLIST)item;
 856
 857     WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 858
 859     pdump (pidl);
 860     pdump (itemid);
 861
 862     if (_ILIsDesktop(pidl))
 863     {
 864         idlRet = ILClone(itemid);
 865         SHFree (pidl);
 866         return idlRet;
 867     }
 868
 869     if (bEnd)
 870         idlRet = ILCombine(pidl, itemid);
 871     else
 872         idlRet = ILCombine(itemid, pidl);
 873
 874     SHFree(pidl);
 875     return idlRet;
 876 }
 877
 878 /*************************************************************************
 879  * ILFree                    [SHELL32.155]
 880  *
 881  * Frees memory (if not NULL) allocated by SHMalloc allocator
 882  *
 883  * PARAMS
 884  *  pidl         [I]
 885  *
 886  * RETURNS
 887  *  Nothing
 888  *
 889  * NOTES
 890  *  exported by ordinal
 891  */
 892 void WINAPI ILFree(LPITEMIDLIST pidl)
 893 {
 894     TRACE("(pidl=%p)\n",pidl);
 895     SHFree(pidl);
 896 }
 897
 898 /*************************************************************************
 899  * ILGlobalFree              [SHELL32.156]
 900  *
 901  * Frees memory (if not NULL) allocated by Alloc allocator
 902  *
 903  * PARAMS
 904  *  pidl         [I]
 905  *
 906  * RETURNS
 907  *  Nothing
 908  *
 909  * NOTES
 910  *  exported by ordinal.
 911  */
 912 void WINAPI ILGlobalFree( LPITEMIDLIST pidl)
 913 {
 914     TRACE("%p\n", pidl);
 915
 916     Free(pidl);
 917 }
 918
 919 /*************************************************************************
 920  * ILCreateFromPathA         [SHELL32.189]
 921  *
 922  * Creates a complex ItemIDList from a path and returns it.
 923  *
 924  * PARAMS
 925  *  path         [I]
 926  *
 927  * RETURNS
 928  *  the newly created complex ItemIDList or NULL if failed
 929  *
 930  * NOTES
 931  *  exported by ordinal.
 932  */
 933 LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
 934 {
 935     LPITEMIDLIST pidlnew = NULL;
 936
 937     TRACE_(shell)("%s\n", debugstr_a(path));
 938
 939     if (SUCCEEDED(SHILCreateFromPathA(path, &pidlnew, NULL)))
 940         return pidlnew;
 941     return NULL;
 942 }
 943
 944 /*************************************************************************
 945  * ILCreateFromPathW         [SHELL32.190]
 946  *
 947  * See ILCreateFromPathA.
 948  */
 949 LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
 950 {
 951     LPITEMIDLIST pidlnew = NULL;
 952
 953     TRACE_(shell)("%s\n", debugstr_w(path));
 954
 955     if (SUCCEEDED(SHILCreateFromPathW(path, &pidlnew, NULL)))
 956         return pidlnew;
 957     return NULL;
 958 }
 959
 960 /*************************************************************************
 961  * ILCreateFromPath          [SHELL32.157]
 962  */
 963 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
 964 {
 965     if ( SHELL_OsIsUnicode())
 966         return ILCreateFromPathW (path);
 967     return ILCreateFromPathA (path);
 968 }
 969
 970 /*************************************************************************
 971  * _ILParsePathW             [internal]
 972  *
 973  * Creates an ItemIDList from a path and returns it.
 974  *
 975  * PARAMS
 976  *  path         [I]   path to parse and convert into an ItemIDList
 977  *  lpFindFile   [I]   pointer to buffer to initialize the FileSystem
 978  *                     Bind Data object with
 979  *  bBindCtx     [I]   indicates to create a BindContext and assign a
 980  *                     FileSystem Bind Data object
 981  *  ppidl        [O]   the newly create ItemIDList
 982  *  prgfInOut    [I/O] requested attributes on input and actual
 983  *                     attributes on return
 984  *
 985  * RETURNS
 986  *  NO_ERROR on success or an OLE error code
 987  *
 988  * NOTES
 989  *  If either lpFindFile is non-NULL or bBindCtx is TRUE, this function
 990  *  creates a BindContext object and assigns a FileSystem Bind Data object
 991  *  to it, passing the BindContext to IShellFolder_ParseDisplayName. Each
 992  *  IShellFolder uses that FileSystem Bind Data object of the BindContext
 993  *  to pass data about the current path element to the next object. This
 994  *  is used to avoid having to verify the current path element on disk, so
 995  *  that creating an ItemIDList from a nonexistent path still can work.
 996  */
 997 static HRESULT _ILParsePathW(LPCWSTR path, LPWIN32_FIND_DATAW lpFindFile,
 998                              BOOL bBindCtx, LPITEMIDLIST *ppidl, LPDWORD prgfInOut)
 999 {
1000     LPSHELLFOLDER pSF = NULL;
1001     LPBC pBC = NULL;
1002     HRESULT ret;
1003
1004     TRACE("%s %p %d (%p)->%p (%p)->0x%x\n", debugstr_w(path), lpFindFile, bBindCtx,
1005                                              ppidl, ppidl ? *ppidl : NULL,
1006                                              prgfInOut, prgfInOut ? *prgfInOut : 0);
1007
1008     ret = SHGetDesktopFolder(&pSF);
1009     if (FAILED(ret))
1010         return ret;
1011
1012     if (lpFindFile || bBindCtx)
1013         ret = IFileSystemBindData_Constructor(lpFindFile, &pBC);
1014
1015     if (SUCCEEDED(ret))
1016     {
1017         ret = IShellFolder_ParseDisplayName(pSF, 0, pBC, (LPOLESTR)path, NULL, ppidl, prgfInOut);
1018     }
1019
1020     if (pBC)
1021     {
1022         IBindCtx_Release(pBC);
1023         pBC = NULL;
1024     }
1025
1026     IShellFolder_Release(pSF);
1027
1028     if (FAILED(ret) && ppidl)
1029         *ppidl = NULL;
1030
1031     TRACE("%s %p 0x%x\n", debugstr_w(path), ppidl ? *ppidl : NULL, prgfInOut ? *prgfInOut : 0);
1032
1033     return ret;
1034 }
1035
1036 /*************************************************************************
1037  * SHSimpleIDListFromPath    [SHELL32.162]
1038  *
1039  * Creates a simple ItemIDList from a path and returns it. This function
1040  * does not fail on nonexistent paths.
1041  *
1042  * PARAMS
1043  *  path         [I]   path to parse and convert into an ItemIDList
1044  *
1045  * RETURNS
1046  *  the newly created simple ItemIDList
1047  *
1048  * NOTES
1049  *  Simple in the name does not mean a relative ItemIDList but rather a
1050  *  fully qualified list, where only the file name is filled in and the
1051  *  directory flag for those ItemID elements this is known about, eg.
1052  *  it is not the last element in the ItemIDList or the actual directory
1053  *  exists on disk.
1054  *  exported by ordinal.
1055  */
1056 LPITEMIDLIST SHSimpleIDListFromPathA(LPCSTR lpszPath)
1057 {
1058     LPITEMIDLIST pidl = NULL;
1059     LPWSTR wPath = NULL;
1060     int len;
1061
1062     TRACE("%s\n", debugstr_a(lpszPath));
1063
1064     if (lpszPath)
1065     {
1066         len = MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, NULL, 0);
1067         wPath = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1068         MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, wPath, len);
1069     }
1070
1071     _ILParsePathW(wPath, NULL, TRUE, &pidl, NULL);
1072
1073     HeapFree(GetProcessHeap(), 0, wPath);
1074     TRACE("%s %p\n", debugstr_a(lpszPath), pidl);
1075     return pidl;
1076 }
1077
1078 LPITEMIDLIST SHSimpleIDListFromPathW(LPCWSTR lpszPath)
1079 {
1080     LPITEMIDLIST pidl = NULL;
1081
1082     TRACE("%s\n", debugstr_w(lpszPath));
1083
1084     _ILParsePathW(lpszPath, NULL, TRUE, &pidl, NULL);
1085     TRACE("%s %p\n", debugstr_w(lpszPath), pidl);
1086     return pidl;
1087 }
1088
1089 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW(LPCVOID lpszPath)
1090 {
1091     if ( SHELL_OsIsUnicode())
1092         return SHSimpleIDListFromPathW (lpszPath);
1093     return SHSimpleIDListFromPathA (lpszPath);
1094 }
1095
1096 /*************************************************************************
1097  * SHGetDataFromIDListA [SHELL32.247]
1098  *
1099  * NOTES
1100  *  the pidl can be a simple one. since we can't get the path out of the pidl
1101  *  we have to take all data from the pidl
1102  */
1103 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1104                                     int nFormat, LPVOID dest, int len)
1105 {
1106     LPSTR filename, shortname;
1107     WIN32_FIND_DATAA * pfd;
1108
1109     TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1110
1111     pdump(pidl);
1112     if (!psf || !dest)
1113         return E_INVALIDARG;
1114
1115     switch (nFormat)
1116     {
1117     case SHGDFIL_FINDDATA:
1118         pfd = dest;
1119
1120         if (_ILIsDrive(pidl) || _ILIsSpecialFolder(pidl))
1121             return E_INVALIDARG;
1122
1123         if (len < sizeof(WIN32_FIND_DATAA))
1124             return E_INVALIDARG;
1125
1126         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1127         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1128         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1129         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1130
1131         filename = _ILGetTextPointer(pidl);
1132         shortname = _ILGetSTextPointer(pidl);
1133
1134         if (filename)
1135             lstrcpynA(pfd->cFileName, filename, sizeof(pfd->cFileName));
1136         else
1137             pfd->cFileName[0] = '\0';
1138
1139         if (shortname)
1140             lstrcpynA(pfd->cAlternateFileName, shortname, sizeof(pfd->cAlternateFileName));
1141         else
1142             pfd->cAlternateFileName[0] = '\0';
1143         return S_OK;
1144
1145     case SHGDFIL_NETRESOURCE:
1146     case SHGDFIL_DESCRIPTIONID:
1147         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1148         break;
1149
1150     default:
1151         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1152     }
1153
1154     return E_INVALIDARG;
1155 }
1156
1157 /*************************************************************************
1158  * SHGetDataFromIDListW [SHELL32.248]
1159  *
1160  */
1161 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1162                                     int nFormat, LPVOID dest, int len)
1163 {
1164     LPSTR filename, shortname;
1165     WIN32_FIND_DATAW * pfd = dest;
1166
1167     TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1168
1169     pdump(pidl);
1170
1171     if (!psf || !dest)
1172         return E_INVALIDARG;
1173
1174     switch (nFormat)
1175     {
1176     case SHGDFIL_FINDDATA:
1177         pfd = dest;
1178
1179         if (_ILIsDrive(pidl))
1180             return E_INVALIDARG;
1181
1182         if (len < sizeof(WIN32_FIND_DATAW))
1183             return E_INVALIDARG;
1184
1185         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1186         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1187         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1188         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1189
1190         filename = _ILGetTextPointer(pidl);
1191         shortname = _ILGetSTextPointer(pidl);
1192
1193         if (!filename)
1194             pfd->cFileName[0] = '\0';
1195         else if (!MultiByteToWideChar(CP_ACP, 0, filename, -1, pfd->cFileName, MAX_PATH))
1196             pfd->cFileName[MAX_PATH-1] = 0;
1197
1198         if (!shortname)
1199             pfd->cAlternateFileName[0] = '\0';
1200         else if (!MultiByteToWideChar(CP_ACP, 0, shortname, -1, pfd->cAlternateFileName, 14))
1201             pfd->cAlternateFileName[13] = 0;
1202         return S_OK;
1203
1204     case SHGDFIL_NETRESOURCE:
1205     case SHGDFIL_DESCRIPTIONID:
1206         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1207         break;
1208
1209     default:
1210         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1211     }
1212
1213     return E_INVALIDARG;
1214 }
1215
1216 /*************************************************************************
1217  * SHGetPathFromIDListA        [SHELL32.@][NT 4.0: SHELL32.220]
1218  *
1219  * PARAMETERS
1220  *  pidl,   [IN] pidl
1221  *  pszPath [OUT] path
1222  *
1223  * RETURNS
1224  *  path from a passed PIDL.
1225  *
1226  * NOTES
1227  *    NULL returns FALSE
1228  *    desktop pidl gives path to desktop directory back
1229  *    special pidls returning FALSE
1230  */
1231 BOOL WINAPI SHGetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath)
1232 {
1233     WCHAR wszPath[MAX_PATH];
1234     BOOL bSuccess;
1235
1236     bSuccess = SHGetPathFromIDListW(pidl, wszPath);
1237     WideCharToMultiByte(CP_ACP, 0, wszPath, -1, pszPath, MAX_PATH, NULL, NULL);
1238
1239     return bSuccess;
1240 }
1241
1242 /*************************************************************************
1243  * SHGetPathFromIDListW             [SHELL32.@]
1244  *
1245  * See SHGetPathFromIDListA.
1246  */
1247 BOOL WINAPI SHGetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath)
1248 {
1249     HRESULT hr;
1250     LPCITEMIDLIST pidlLast;
1251     LPSHELLFOLDER psfFolder;
1252     DWORD dwAttributes;
1253     STRRET strret;
1254
1255     TRACE_(shell)("(pidl=%p,%p)\n", pidl, pszPath);
1256     pdump(pidl);
1257
1258     *pszPath = '\0';
1259     if (!pidl)
1260         return FALSE;
1261
1262     hr = SHBindToParent(pidl, &IID_IShellFolder, (VOID**)&psfFolder, &pidlLast);
1263     if (FAILED(hr)) return FALSE;
1264
1265     dwAttributes = SFGAO_FILESYSTEM;
1266     hr = IShellFolder_GetAttributesOf(psfFolder, 1, &pidlLast, &dwAttributes);
1267     if (FAILED(hr) || !(dwAttributes & SFGAO_FILESYSTEM)) {
1268         IShellFolder_Release(psfFolder);
1269         return FALSE;
1270     }
1271
1272     hr = IShellFolder_GetDisplayNameOf(psfFolder, pidlLast, SHGDN_FORPARSING, &strret);
1273     IShellFolder_Release(psfFolder);
1274     if (FAILED(hr)) return FALSE;
1275
1276     hr = StrRetToBufW(&strret, pidlLast, pszPath, MAX_PATH);
1277
1278     TRACE_(shell)("-- %s, 0x%08x\n",debugstr_w(pszPath), hr);
1279     return SUCCEEDED(hr);
1280 }
1281
1282 /*************************************************************************
1283  *    SHBindToParent        [shell version 5.0]
1284  */
1285 HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
1286 {
1287     IShellFolder    * psfDesktop;
1288     HRESULT         hr=E_FAIL;
1289
1290     TRACE_(shell)("pidl=%p\n", pidl);
1291     pdump(pidl);
1292
1293     if (!pidl || !ppv)
1294         return E_INVALIDARG;
1295
1296     *ppv = NULL;
1297     if (ppidlLast)
1298         *ppidlLast = NULL;
1299
1300     hr = SHGetDesktopFolder(&psfDesktop);
1301     if (FAILED(hr))
1302         return hr;
1303
1304     if (_ILIsPidlSimple(pidl))
1305     {
1306         /* we are on desktop level */
1307         hr = IShellFolder_QueryInterface(psfDesktop, riid, ppv);
1308     }
1309     else
1310     {
1311         LPITEMIDLIST pidlParent = ILClone(pidl);
1312         ILRemoveLastID(pidlParent);
1313         hr = IShellFolder_BindToObject(psfDesktop, pidlParent, NULL, riid, ppv);
1314         SHFree (pidlParent);
1315     }
1316
1317     IShellFolder_Release(psfDesktop);
1318
1319     if (SUCCEEDED(hr) && ppidlLast)
1320         *ppidlLast = ILFindLastID(pidl);
1321
1322     TRACE_(shell)("-- psf=%p pidl=%p ret=0x%08x\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
1323     return hr;
1324 }
1325
1326 /*************************************************************************
1327  * SHParseDisplayName             [SHELL32.@]
1328  */
1329 HRESULT WINAPI SHParseDisplayName(LPCWSTR name, IBindCtx *bindctx, LPITEMIDLIST *pidlist,
1330                                   SFGAOF attr_in, SFGAOF *attr_out)
1331 {
1332     IShellFolder *desktop;
1333     HRESULT hr;
1334
1335     TRACE("%s %p %p %d %p\n", debugstr_w(name), bindctx, pidlist, attr_in, attr_out);
1336
1337     *pidlist = NULL;
1338
1339     if (!name) return E_INVALIDARG;
1340
1341     hr = SHGetDesktopFolder(&desktop);
1342     if (hr != S_OK) return hr;
1343
1344     hr = IShellFolder_ParseDisplayName(desktop, NULL, bindctx, (LPWSTR)name, NULL, pidlist, &attr_in);
1345     if (attr_out) *attr_out = attr_in;
1346
1347     IShellFolder_Release(desktop);
1348
1349     return hr;
1350 }
1351
1352 /*************************************************************************
1353  * SHGetNameFromIDList             [SHELL32.@]
1354  */
1355 HRESULT WINAPI SHGetNameFromIDList(PCIDLIST_ABSOLUTE pidl, SIGDN sigdnName, PWSTR *ppszName)
1356 {
1357     IShellFolder *psfparent;
1358     LPCITEMIDLIST child_pidl;
1359     STRRET disp_name;
1360     HRESULT ret;
1361
1362     TRACE("%p 0x%08x %p\n", pidl, sigdnName, ppszName);
1363
1364     *ppszName = NULL;
1365     ret = SHBindToParent(pidl, &IID_IShellFolder, (void**)&psfparent, &child_pidl);
1366     if(SUCCEEDED(ret))
1367     {
1368         switch(sigdnName)
1369         {
1370                                                 /* sigdnName & 0xffff */
1371         case SIGDN_NORMALDISPLAY:               /* SHGDN_NORMAL */
1372         case SIGDN_PARENTRELATIVEPARSING:       /* SHGDN_INFOLDER | SHGDN_FORPARSING */
1373         case SIGDN_PARENTRELATIVEEDITING:       /* SHGDN_INFOLDER | SHGDN_FOREDITING */
1374         case SIGDN_DESKTOPABSOLUTEPARSING:      /* SHGDN_FORPARSING */
1375         case SIGDN_DESKTOPABSOLUTEEDITING:      /* SHGDN_FOREDITING | SHGDN_FORADDRESSBAR*/
1376         case SIGDN_PARENTRELATIVEFORADDRESSBAR: /* SIGDN_INFOLDER | SHGDN_FORADDRESSBAR */
1377         case SIGDN_PARENTRELATIVE:              /* SIGDN_INFOLDER */
1378
1379             disp_name.uType = STRRET_WSTR;
1380             ret = IShellFolder_GetDisplayNameOf(psfparent, child_pidl,
1381                                                 sigdnName & 0xffff,
1382                                                 &disp_name);
1383             if(SUCCEEDED(ret))
1384                 ret = StrRetToStrW(&disp_name, pidl, ppszName);
1385
1386             break;
1387
1388         case SIGDN_FILESYSPATH:
1389             *ppszName = CoTaskMemAlloc(sizeof(WCHAR)*MAX_PATH);
1390             if(SHGetPathFromIDListW(pidl, *ppszName))
1391             {
1392                 TRACE("Got string %s\n", debugstr_w(*ppszName));
1393                 ret = S_OK;
1394             }
1395             else
1396             {
1397                 CoTaskMemFree(*ppszName);
1398                 ret = E_INVALIDARG;
1399             }
1400             break;
1401
1402         case SIGDN_URL:
1403         default:
1404             FIXME("Unsupported SIGDN %x\n", sigdnName);
1405             ret = E_FAIL;
1406         }
1407
1408         IShellFolder_Release(psfparent);
1409     }
1410     return ret;
1411 }
1412
1413 /*************************************************************************
1414  * SHGetIDListFromObject             [SHELL32.@]
1415  */
1416 HRESULT WINAPI SHGetIDListFromObject(IUnknown *punk, PIDLIST_ABSOLUTE *ppidl)
1417 {
1418     IPersistIDList *ppersidl;
1419     IPersistFolder2 *ppf2;
1420     IDataObject *pdo;
1421     IFolderView *pfv;
1422     HRESULT ret;
1423
1424     if(!punk)
1425         return E_NOINTERFACE;
1426
1427     *ppidl = NULL;
1428
1429     /* Try IPersistIDList */
1430     ret = IUnknown_QueryInterface(punk, &IID_IPersistIDList, (void**)&ppersidl);
1431     if(SUCCEEDED(ret))
1432     {
1433         TRACE("IPersistIDList (%p)\n", ppersidl);
1434         ret = IPersistIDList_GetIDList(ppersidl, ppidl);
1435         IPersistIDList_Release(ppersidl);
1436         if(SUCCEEDED(ret))
1437             return ret;
1438     }
1439
1440     /* Try IPersistFolder2 */
1441     ret = IUnknown_QueryInterface(punk, &IID_IPersistFolder2, (void**)&ppf2);
1442     if(SUCCEEDED(ret))
1443     {
1444         TRACE("IPersistFolder2 (%p)\n", ppf2);
1445         ret = IPersistFolder2_GetCurFolder(ppf2, ppidl);
1446         IPersistFolder2_Release(ppf2);
1447         if(SUCCEEDED(ret))
1448             return ret;
1449     }
1450
1451     /* Try IDataObject */
1452     ret = IUnknown_QueryInterface(punk, &IID_IDataObject, (void**)&pdo);
1453     if(SUCCEEDED(ret))
1454     {
1455         IShellItem *psi;
1456         TRACE("IDataObject (%p)\n", pdo);
1457         ret = SHGetItemFromDataObject(pdo, DOGIF_ONLY_IF_ONE,
1458                                       &IID_IShellItem, (void**)&psi);
1459         if(SUCCEEDED(ret))
1460         {
1461             ret = SHGetIDListFromObject((IUnknown*)psi, ppidl);
1462             IShellItem_Release(psi);
1463         }
1464         IDataObject_Release(pdo);
1465
1466         if(SUCCEEDED(ret))
1467             return ret;
1468     }
1469
1470     /* Try IFolderView */
1471     ret = IUnknown_QueryInterface(punk, &IID_IFolderView, (void**)&pfv);
1472     if(SUCCEEDED(ret))
1473     {
1474         IShellFolder *psf;
1475         TRACE("IFolderView (%p)\n", pfv);
1476         ret = IFolderView_GetFolder(pfv, &IID_IShellFolder, (void**)&psf);
1477         if(SUCCEEDED(ret))
1478         {
1479             /* We might be able to get IPersistFolder2 from a shellfolder. */
1480             ret = SHGetIDListFromObject((IUnknown*)psf, ppidl);
1481         }
1482         IFolderView_Release(pfv);
1483         return ret;
1484     }
1485
1486     return ret;
1487 }
1488
1489 /**************************************************************************
1490  *
1491  *        internal functions
1492  *
1493  *    ### 1. section creating pidls ###
1494  *
1495  *************************************************************************
1496  */
1497
1498 /* Basic PIDL constructor.  Allocates size + 5 bytes, where:
1499  * - two bytes are SHITEMID.cb
1500  * - one byte is PIDLDATA.type
1501  * - two bytes are the NULL PIDL terminator
1502  * Sets type of the returned PIDL to type.
1503  */
1504 static LPITEMIDLIST _ILAlloc(PIDLTYPE type, unsigned int size)
1505 {
1506     LPITEMIDLIST pidlOut = NULL;
1507
1508     pidlOut = SHAlloc(size + 5);
1509     if(pidlOut)
1510     {
1511         LPPIDLDATA pData;
1512         LPITEMIDLIST pidlNext;
1513
1514         ZeroMemory(pidlOut, size + 5);
1515         pidlOut->mkid.cb = size + 3;
1516
1517         pData = _ILGetDataPointer(pidlOut);
1518         if (pData)
1519             pData->type = type;
1520
1521         pidlNext = ILGetNext(pidlOut);
1522         if (pidlNext)
1523             pidlNext->mkid.cb = 0x00;
1524         TRACE("-- (pidl=%p, size=%u)\n", pidlOut, size);
1525     }
1526
1527     return pidlOut;
1528 }
1529
1530 LPITEMIDLIST _ILCreateDesktop(void)
1531 {
1532     LPITEMIDLIST ret;
1533
1534     TRACE("()\n");
1535     ret = SHAlloc(2);
1536     if (ret)
1537         ret->mkid.cb = 0;
1538     return ret;
1539 }
1540
1541 LPITEMIDLIST _ILCreateMyComputer(void)
1542 {
1543     TRACE("()\n");
1544     return _ILCreateGuid(PT_GUID, &CLSID_MyComputer);
1545 }
1546
1547 LPITEMIDLIST _ILCreateMyDocuments(void)
1548 {
1549     TRACE("()\n");
1550     return _ILCreateGuid(PT_GUID, &CLSID_MyDocuments);
1551 }
1552
1553 LPITEMIDLIST _ILCreateIExplore(void)
1554 {
1555     TRACE("()\n");
1556     return _ILCreateGuid(PT_GUID, &CLSID_Internet);
1557 }
1558
1559 LPITEMIDLIST _ILCreateControlPanel(void)
1560 {
1561     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1562
1563     TRACE("()\n");
1564     if (parent)
1565     {
1566         LPITEMIDLIST cpl = _ILCreateGuid(PT_SHELLEXT, &CLSID_ControlPanel);
1567
1568         if (cpl)
1569         {
1570             ret = ILCombine(parent, cpl);
1571             SHFree(cpl);
1572         }
1573         SHFree(parent);
1574     }
1575     return ret;
1576 }
1577
1578 LPITEMIDLIST _ILCreatePrinters(void)
1579 {
1580     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1581
1582     TRACE("()\n");
1583     if (parent)
1584     {
1585         LPITEMIDLIST printers = _ILCreateGuid(PT_YAGUID, &CLSID_Printers);
1586
1587         if (printers)
1588         {
1589             ret = ILCombine(parent, printers);
1590             SHFree(printers);
1591         }
1592         SHFree(parent);
1593     }
1594     return ret;
1595 }
1596
1597 LPITEMIDLIST _ILCreateNetwork(void)
1598 {
1599     TRACE("()\n");
1600     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1601 }
1602
1603 LPITEMIDLIST _ILCreateBitBucket(void)
1604 {
1605     TRACE("()\n");
1606     return _ILCreateGuid(PT_GUID, &CLSID_RecycleBin);
1607 }
1608
1609 LPITEMIDLIST _ILCreateNetHood(void)
1610 {
1611     TRACE("()\n");
1612     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1613 }
1614
1615 LPITEMIDLIST _ILCreateGuid(PIDLTYPE type, REFIID guid)
1616 {
1617     LPITEMIDLIST pidlOut;
1618
1619     if (type == PT_SHELLEXT || type == PT_GUID || type == PT_YAGUID)
1620     {
1621         pidlOut = _ILAlloc(type, sizeof(GUIDStruct));
1622         if (pidlOut)
1623         {
1624             LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1625
1626             pData->u.guid.guid = *guid;
1627             TRACE("-- create GUID-pidl %s\n",
1628                   debugstr_guid(&(pData->u.guid.guid)));
1629         }
1630     }
1631     else
1632     {
1633         WARN("%d: invalid type for GUID\n", type);
1634         pidlOut = NULL;
1635     }
1636     return pidlOut;
1637 }
1638
1639 LPITEMIDLIST _ILCreateGuidFromStrA(LPCSTR szGUID)
1640 {
1641     IID iid;
1642
1643     if (FAILED(SHCLSIDFromStringA(szGUID, &iid)))
1644     {
1645         ERR("%s is not a GUID\n", szGUID);
1646         return NULL;
1647     }
1648     return _ILCreateGuid(PT_GUID, &iid);
1649 }
1650
1651 LPITEMIDLIST _ILCreateGuidFromStrW(LPCWSTR szGUID)
1652 {
1653     IID iid;
1654
1655     if (FAILED(SHCLSIDFromStringW(szGUID, &iid)))
1656     {
1657         ERR("%s is not a GUID\n", debugstr_w(szGUID));
1658         return NULL;
1659     }
1660     return _ILCreateGuid(PT_GUID, &iid);
1661 }
1662
1663 LPITEMIDLIST _ILCreateFromFindDataW( const WIN32_FIND_DATAW *wfd )
1664 {
1665     char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1666     DWORD   len, len1, wlen, alen;
1667     LPITEMIDLIST pidl;
1668     PIDLTYPE type;
1669
1670     if (!wfd)
1671         return NULL;
1672
1673     TRACE("(%s, %s)\n",debugstr_w(wfd->cAlternateFileName), debugstr_w(wfd->cFileName));
1674
1675     /* prepare buffer with both names */
1676     len = WideCharToMultiByte(CP_ACP,0,wfd->cFileName,-1,buff,MAX_PATH,NULL,NULL);
1677     len1 = WideCharToMultiByte(CP_ACP,0,wfd->cAlternateFileName,-1, buff+len, sizeof(buff)-len, NULL, NULL);
1678     alen = len + len1;
1679
1680     type = (wfd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? PT_FOLDER : PT_VALUE;
1681
1682     wlen = lstrlenW(wfd->cFileName) + 1;
1683     pidl = _ILAlloc(type, FIELD_OFFSET(FileStruct, szNames[alen + (alen & 1)]) +
1684                     FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD));
1685     if (pidl)
1686     {
1687         LPPIDLDATA pData = _ILGetDataPointer(pidl);
1688         FileStruct *fs = &pData->u.file;
1689         FileStructW *fsw;
1690         WORD *pOffsetW;
1691
1692         FileTimeToDosDateTime( &wfd->ftLastWriteTime, &fs->uFileDate, &fs->uFileTime);
1693         fs->dwFileSize = wfd->nFileSizeLow;
1694         fs->uFileAttribs = wfd->dwFileAttributes;
1695         memcpy(fs->szNames, buff, alen);
1696
1697         fsw = (FileStructW*)(pData->u.file.szNames + alen + (alen & 0x1));
1698         fsw->cbLen = FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD);
1699         FileTimeToDosDateTime( &wfd->ftCreationTime, &fsw->uCreationDate, &fsw->uCreationTime);
1700         FileTimeToDosDateTime( &wfd->ftLastAccessTime, &fsw->uLastAccessDate, &fsw->uLastAccessTime);
1701         memcpy(fsw->wszName, wfd->cFileName, wlen * sizeof(WCHAR));
1702
1703         pOffsetW = (WORD*)((LPBYTE)pidl + pidl->mkid.cb - sizeof(WORD));
1704         *pOffsetW = (LPBYTE)fsw - (LPBYTE)pidl;
1705         TRACE("-- Set Value: %s\n",debugstr_w(fsw->wszName));
1706     }
1707     return pidl;
1708
1709 }
1710
1711 HRESULT _ILCreateFromPathW(LPCWSTR szPath, LPITEMIDLIST* ppidl)
1712 {
1713     HANDLE hFile;
1714     WIN32_FIND_DATAW stffile;
1715
1716     if (!ppidl)
1717         return E_INVALIDARG;
1718
1719     hFile = FindFirstFileW(szPath, &stffile);
1720     if (hFile == INVALID_HANDLE_VALUE)
1721         return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
1722
1723     FindClose(hFile);
1724
1725     *ppidl = _ILCreateFromFindDataW(&stffile);
1726
1727     return *ppidl ? S_OK : E_OUTOFMEMORY;
1728 }
1729
1730 LPITEMIDLIST _ILCreateDrive(LPCWSTR lpszNew)
1731 {
1732     LPITEMIDLIST pidlOut;
1733
1734     TRACE("(%s)\n",debugstr_w(lpszNew));
1735
1736     pidlOut = _ILAlloc(PT_DRIVE, sizeof(DriveStruct));
1737     if (pidlOut)
1738     {
1739         LPSTR pszDest;
1740
1741         pszDest = _ILGetTextPointer(pidlOut);
1742         if (pszDest)
1743         {
1744             strcpy(pszDest, "x:\\");
1745             pszDest[0]=toupperW(lpszNew[0]);
1746             TRACE("-- create Drive: %s\n", debugstr_a(pszDest));
1747         }
1748     }
1749     return pidlOut;
1750 }
1751
1752 LPITEMIDLIST _ILCreateEntireNetwork(void)
1753 {
1754     LPITEMIDLIST pidlOut;
1755
1756     TRACE("\n");
1757
1758     pidlOut = _ILAlloc(PT_NETWORK, FIELD_OFFSET(PIDLDATA, u.network.szNames[sizeof("Entire Network")]));
1759     if (pidlOut)
1760     {
1761         LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1762
1763         pData->u.network.dummy = 0;
1764         strcpy(pData->u.network.szNames, "Entire Network");
1765     }
1766     return pidlOut;
1767 }
1768
1769 /**************************************************************************
1770  *  _ILGetDrive()
1771  *
1772  *  Gets the text for the drive eg. 'c:\'
1773  *
1774  * RETURNS
1775  *  strlen (lpszText)
1776  */
1777 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1778 {
1779     TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1780
1781     if(_ILIsMyComputer(pidl))
1782         pidl = ILGetNext(pidl);
1783
1784     if (pidl && _ILIsDrive(pidl))
1785         return _ILSimpleGetText(pidl, pOut, uSize);
1786
1787     return 0;
1788 }
1789
1790 /**************************************************************************
1791  *
1792  *    ### 2. section testing pidls ###
1793  *
1794  **************************************************************************
1795  *  _ILIsUnicode()
1796  *  _ILIsDesktop()
1797  *  _ILIsMyComputer()
1798  *  _ILIsSpecialFolder()
1799  *  _ILIsDrive()
1800  *  _ILIsFolder()
1801  *  _ILIsValue()
1802  *  _ILIsPidlSimple()
1803  */
1804 BOOL _ILIsUnicode(LPCITEMIDLIST pidl)
1805 {
1806     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1807
1808     TRACE("(%p)\n",pidl);
1809
1810     return (pidl && lpPData && PT_VALUEW == lpPData->type);
1811 }
1812
1813 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1814 {
1815     TRACE("(%p)\n",pidl);
1816
1817     return pidl && pidl->mkid.cb  ? FALSE : TRUE;
1818 }
1819
1820 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1821 {
1822     REFIID iid = _ILGetGUIDPointer(pidl);
1823
1824     TRACE("(%p)\n",pidl);
1825
1826     if (iid)
1827         return IsEqualIID(iid, &CLSID_MyComputer);
1828     return FALSE;
1829 }
1830
1831 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1832 {
1833     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1834
1835     TRACE("(%p)\n",pidl);
1836
1837     return (pidl && ( (lpPData && (PT_GUID== lpPData->type || PT_SHELLEXT== lpPData->type || PT_YAGUID == lpPData->type)) ||
1838               (pidl && pidl->mkid.cb == 0x00)
1839             ));
1840 }
1841
1842 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1843 {
1844     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1845
1846     TRACE("(%p)\n",pidl);
1847
1848     return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1849                     PT_DRIVE1 == lpPData->type ||
1850                     PT_DRIVE2 == lpPData->type ||
1851                     PT_DRIVE3 == lpPData->type));
1852 }
1853
1854 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1855 {
1856     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1857
1858     TRACE("(%p)\n",pidl);
1859
1860     return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1861 }
1862
1863 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1864 {
1865     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1866
1867     TRACE("(%p)\n",pidl);
1868
1869     return (pidl && lpPData && PT_VALUE == lpPData->type);
1870 }
1871
1872 BOOL _ILIsCPanelStruct(LPCITEMIDLIST pidl)
1873 {
1874     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1875
1876     TRACE("(%p)\n",pidl);
1877
1878     return (pidl && lpPData && (lpPData->type == 0));
1879 }
1880
1881 /**************************************************************************
1882  *    _ILIsPidlSimple
1883  */
1884 BOOL _ILIsPidlSimple(LPCITEMIDLIST pidl)
1885 {
1886     BOOL ret = TRUE;
1887
1888     if(! _ILIsDesktop(pidl))    /* pidl=NULL or mkid.cb=0 */
1889     {
1890         WORD len = pidl->mkid.cb;
1891         LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((const BYTE*)pidl) + len );
1892
1893         if (pidlnext->mkid.cb)
1894             ret = FALSE;
1895     }
1896
1897     TRACE("%s\n", ret ? "Yes" : "No");
1898     return ret;
1899 }
1900
1901 /**************************************************************************
1902  *
1903  *    ### 3. section getting values from pidls ###
1904  */
1905
1906  /**************************************************************************
1907  *  _ILSimpleGetText
1908  *
1909  * gets the text for the first item in the pidl (eg. simple pidl)
1910  *
1911  * returns the length of the string
1912  */
1913 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
1914 {
1915     DWORD        dwReturn=0;
1916     LPSTR        szSrc;
1917     LPWSTR       szSrcW;
1918     GUID const * riid;
1919     char szTemp[MAX_PATH];
1920
1921     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1922
1923     if (!pidl)
1924         return 0;
1925
1926     if (szOut)
1927         *szOut = 0;
1928
1929     if (_ILIsDesktop(pidl))
1930     {
1931         /* desktop */
1932         if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1933         {
1934             if (szOut)
1935                 lstrcpynA(szOut, szTemp, uOutSize);
1936
1937             dwReturn = strlen (szTemp);
1938         }
1939     }
1940     else if (( szSrc = _ILGetTextPointer(pidl) ))
1941     {
1942         /* filesystem */
1943         if (szOut)
1944             lstrcpynA(szOut, szSrc, uOutSize);
1945
1946         dwReturn = strlen(szSrc);
1947     }
1948     else if (( szSrcW = _ILGetTextPointerW(pidl) ))
1949     {
1950         /* unicode filesystem */
1951         WideCharToMultiByte(CP_ACP,0,szSrcW, -1, szTemp, MAX_PATH, NULL, NULL);
1952
1953         if (szOut)
1954             lstrcpynA(szOut, szTemp, uOutSize);
1955
1956         dwReturn = strlen (szTemp);
1957     }
1958     else if (( riid = _ILGetGUIDPointer(pidl) ))
1959     {
1960         /* special folder */
1961         if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
1962         {
1963             if (szOut)
1964                 lstrcpynA(szOut, szTemp, uOutSize);
1965
1966             dwReturn = strlen (szTemp);
1967         }
1968     }
1969     else
1970     {
1971         ERR("-- no text\n");
1972     }
1973
1974     TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_a(szOut),dwReturn);
1975     return dwReturn;
1976 }
1977
1978  /**************************************************************************
1979  *  _ILSimpleGetTextW
1980  *
1981  * gets the text for the first item in the pidl (eg. simple pidl)
1982  *
1983  * returns the length of the string
1984  */
1985 DWORD _ILSimpleGetTextW (LPCITEMIDLIST pidl, LPWSTR szOut, UINT uOutSize)
1986 {
1987     DWORD   dwReturn;
1988     FileStructW *pFileStructW = _ILGetFileStructW(pidl);
1989
1990     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1991
1992     if (pFileStructW) {
1993         lstrcpynW(szOut, pFileStructW->wszName, uOutSize);
1994         dwReturn = lstrlenW(pFileStructW->wszName);
1995     } else {
1996         GUID const * riid;
1997         WCHAR szTemp[MAX_PATH];
1998         LPSTR szSrc;
1999         LPWSTR szSrcW;
2000         dwReturn=0;
2001
2002         if (!pidl)
2003             return 0;
2004
2005         if (szOut)
2006             *szOut = 0;
2007
2008         if (_ILIsDesktop(pidl))
2009         {
2010             /* desktop */
2011             if (HCR_GetClassNameW(&CLSID_ShellDesktop, szTemp, MAX_PATH))
2012             {
2013                 if (szOut)
2014                     lstrcpynW(szOut, szTemp, uOutSize);
2015
2016                 dwReturn = lstrlenW (szTemp);
2017             }
2018         }
2019         else if (( szSrcW = _ILGetTextPointerW(pidl) ))
2020         {
2021             /* unicode filesystem */
2022             if (szOut)
2023                 lstrcpynW(szOut, szSrcW, uOutSize);
2024
2025             dwReturn = lstrlenW(szSrcW);
2026         }
2027         else if (( szSrc = _ILGetTextPointer(pidl) ))
2028         {
2029             /* filesystem */
2030             MultiByteToWideChar(CP_ACP, 0, szSrc, -1, szTemp, MAX_PATH);
2031
2032             if (szOut)
2033                 lstrcpynW(szOut, szTemp, uOutSize);
2034
2035             dwReturn = lstrlenW (szTemp);
2036         }
2037         else if (( riid = _ILGetGUIDPointer(pidl) ))
2038         {
2039             /* special folder */
2040             if ( HCR_GetClassNameW(riid, szTemp, MAX_PATH) )
2041             {
2042                 if (szOut)
2043                     lstrcpynW(szOut, szTemp, uOutSize);
2044
2045                 dwReturn = lstrlenW (szTemp);
2046             }
2047         }
2048         else
2049         {
2050             ERR("-- no text\n");
2051         }
2052     }
2053
2054     TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_w(szOut),dwReturn);
2055     return dwReturn;
2056 }
2057
2058 /**************************************************************************
2059  *
2060  *    ### 4. getting pointers to parts of pidls ###
2061  *
2062  **************************************************************************
2063  *  _ILGetDataPointer()
2064  */
2065 LPPIDLDATA _ILGetDataPointer(LPCITEMIDLIST pidl)
2066 {
2067     if(!_ILIsEmpty(pidl))
2068         return (LPPIDLDATA)pidl->mkid.abID;
2069     return NULL;
2070 }
2071
2072 /**************************************************************************
2073  *  _ILGetTextPointerW()
2074  * gets a pointer to the unicode long filename string stored in the pidl
2075  */
2076 static LPWSTR _ILGetTextPointerW(LPCITEMIDLIST pidl)
2077 {
2078     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
2079
2080     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2081
2082     if (!pdata)
2083         return NULL;
2084
2085     switch (pdata->type)
2086     {
2087     case PT_GUID:
2088     case PT_SHELLEXT:
2089     case PT_YAGUID:
2090         return NULL;
2091
2092     case PT_DRIVE:
2093     case PT_DRIVE1:
2094     case PT_DRIVE2:
2095     case PT_DRIVE3:
2096         /*return (LPSTR)&(pdata->u.drive.szDriveName);*/
2097         return NULL;
2098
2099     case PT_FOLDER:
2100     case PT_FOLDER1:
2101     case PT_VALUE:
2102     case PT_IESPECIAL1:
2103     case PT_IESPECIAL2:
2104         /*return (LPSTR)&(pdata->u.file.szNames);*/
2105         return NULL;
2106
2107     case PT_WORKGRP:
2108     case PT_COMP:
2109     case PT_NETWORK:
2110     case PT_NETPROVIDER:
2111     case PT_SHARE:
2112         /*return (LPSTR)&(pdata->u.network.szNames);*/
2113         return NULL;
2114
2115     case PT_VALUEW:
2116         return (LPWSTR)pdata->u.file.szNames;
2117     }
2118     return NULL;
2119 }
2120
2121
2122 /**************************************************************************
2123  *  _ILGetTextPointer()
2124  * gets a pointer to the long filename string stored in the pidl
2125  */
2126 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
2127 {
2128     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
2129
2130     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2131
2132     if (!pdata)
2133         return NULL;
2134
2135     switch (pdata->type)
2136     {
2137     case PT_GUID:
2138     case PT_SHELLEXT:
2139     case PT_YAGUID:
2140         return NULL;
2141
2142     case PT_DRIVE:
2143     case PT_DRIVE1:
2144     case PT_DRIVE2:
2145     case PT_DRIVE3:
2146         return pdata->u.drive.szDriveName;
2147
2148     case PT_FOLDER:
2149     case PT_FOLDER1:
2150     case PT_VALUE:
2151     case PT_IESPECIAL1:
2152     case PT_IESPECIAL2:
2153         return pdata->u.file.szNames;
2154
2155     case PT_WORKGRP:
2156     case PT_COMP:
2157     case PT_NETWORK:
2158     case PT_NETPROVIDER:
2159     case PT_SHARE:
2160         return pdata->u.network.szNames;
2161     }
2162     return NULL;
2163 }
2164
2165 /**************************************************************************
2166  *  _ILGetSTextPointer()
2167  * gets a pointer to the short filename string stored in the pidl
2168  */
2169 static LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
2170 {
2171     /* TRACE(pidl,"(pidl%p)\n", pidl); */
2172
2173     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2174
2175     if (!pdata)
2176         return NULL;
2177
2178     switch (pdata->type)
2179     {
2180     case PT_FOLDER:
2181     case PT_VALUE:
2182     case PT_IESPECIAL1:
2183     case PT_IESPECIAL2:
2184         return pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1;
2185
2186     case PT_WORKGRP:
2187         return pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1;
2188     }
2189     return NULL;
2190 }
2191
2192 /**************************************************************************
2193  * _ILGetGUIDPointer()
2194  *
2195  * returns reference to guid stored in some pidls
2196  */
2197 IID* _ILGetGUIDPointer(LPCITEMIDLIST pidl)
2198 {
2199     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2200
2201     TRACE("%p\n", pidl);
2202
2203     if (!pdata)
2204         return NULL;
2205
2206     TRACE("pdata->type 0x%04x\n", pdata->type);
2207     switch (pdata->type)
2208     {
2209     case PT_SHELLEXT:
2210     case PT_GUID:
2211     case PT_YAGUID:
2212         return &(pdata->u.guid.guid);
2213
2214     default:
2215         TRACE("Unknown pidl type 0x%04x\n", pdata->type);
2216         break;
2217     }
2218     return NULL;
2219 }
2220
2221 /******************************************************************************
2222  * _ILGetFileStructW [Internal]
2223  *
2224  * Get pointer the a SHITEMID's FileStructW field if present
2225  *
2226  * PARAMS
2227  *  pidl [I] The SHITEMID
2228  *
2229  * RETURNS
2230  *  Success: Pointer to pidl's FileStructW field.
2231  *  Failure: NULL
2232  */
2233 FileStructW* _ILGetFileStructW(LPCITEMIDLIST pidl) {
2234     FileStructW *pFileStructW;
2235     WORD cbOffset;
2236
2237     if (!(_ILIsValue(pidl) || _ILIsFolder(pidl)))
2238         return NULL;
2239
2240     cbOffset = *(const WORD *)((const BYTE *)pidl + pidl->mkid.cb - sizeof(WORD));
2241     pFileStructW = (FileStructW*)((LPBYTE)pidl + cbOffset);
2242
2243     /* Currently I don't see a fool prove way to figure out if a pidl is for sure of WinXP
2244      * style with a FileStructW member. If we switch all our shellfolder-implementations to
2245      * the new format, this won't be a problem. For now, we do as many sanity checks as possible. */
2246     if ((cbOffset & 0x1) || /* FileStructW member is word aligned in the pidl */
2247         /* FileStructW is positioned after FileStruct */
2248         cbOffset < sizeof(pidl->mkid.cb) + sizeof(PIDLTYPE) + sizeof(FileStruct) ||
2249         /* There has to be enough space at cbOffset in the pidl to hold FileStructW and cbOffset */
2250         cbOffset > pidl->mkid.cb - sizeof(cbOffset) - sizeof(FileStructW) ||
2251         pidl->mkid.cb != cbOffset + pFileStructW->cbLen)
2252     {
2253         WARN("Invalid pidl format (cbOffset = %d)!\n", cbOffset);
2254         return NULL;
2255     }
2256
2257     return pFileStructW;
2258 }
2259
2260 /*************************************************************************
2261  * _ILGetFileDateTime
2262  *
2263  * Given the ItemIdList, get the FileTime
2264  *
2265  * PARAMS
2266  *      pidl        [I] The ItemIDList
2267  *      pFt         [I] the resulted FILETIME of the file
2268  *
2269  * RETURNS
2270  *     True if Successful
2271  *
2272  * NOTES
2273  *
2274  */
2275 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
2276 {
2277     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2278
2279     if (!pdata)
2280         return FALSE;
2281
2282     switch (pdata->type)
2283     {
2284     case PT_FOLDER:
2285     case PT_VALUE:
2286         DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
2287         break;
2288     default:
2289         return FALSE;
2290     }
2291     return TRUE;
2292 }
2293
2294 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2295 {
2296     FILETIME ft,lft;
2297     SYSTEMTIME time;
2298     BOOL ret;
2299
2300     if (_ILGetFileDateTime( pidl, &ft ))
2301     {
2302         FileTimeToLocalFileTime(&ft, &lft);
2303         FileTimeToSystemTime (&lft, &time);
2304
2305         ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
2306         if (ret)
2307         {
2308             /* Append space + time without seconds */
2309             pOut[ret-1] = ' ';
2310             GetTimeFormatA(LOCALE_USER_DEFAULT, TIME_NOSECONDS, &time, NULL, &pOut[ret], uOutSize - ret);
2311         }
2312     }
2313     else
2314     {
2315         pOut[0] = '\0';
2316         ret = FALSE;
2317     }
2318     return ret;
2319 }
2320
2321 /*************************************************************************
2322  * _ILGetFileSize
2323  *
2324  * Given the ItemIdList, get the FileSize
2325  *
2326  * PARAMS
2327  *    pidl     [I] The ItemIDList
2328  *    pOut     [I] The buffer to save the result
2329  *    uOutsize [I] The size of the buffer
2330  *
2331  * RETURNS
2332  *    The FileSize
2333  *
2334  * NOTES
2335  *    pOut can be null when no string is needed
2336  *
2337  */
2338 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2339 {
2340     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2341     DWORD dwSize;
2342
2343     if (!pdata)
2344         return 0;
2345
2346     switch (pdata->type)
2347     {
2348     case PT_VALUE:
2349         dwSize = pdata->u.file.dwFileSize;
2350         if (pOut)
2351             StrFormatKBSizeA(dwSize, pOut, uOutSize);
2352         return dwSize;
2353     }
2354     if (pOut)
2355         *pOut = 0x00;
2356     return 0;
2357 }
2358
2359 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2360 {
2361     char szTemp[MAX_PATH];
2362     const char * pPoint;
2363     LPCITEMIDLIST  pidlTemp=pidl;
2364
2365     TRACE("pidl=%p\n",pidl);
2366
2367     if (!pidl)
2368         return FALSE;
2369
2370     pidlTemp = ILFindLastID(pidl);
2371
2372     if (!_ILIsValue(pidlTemp))
2373         return FALSE;
2374     if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH))
2375         return FALSE;
2376
2377     pPoint = PathFindExtensionA(szTemp);
2378
2379     if (!*pPoint)
2380         return FALSE;
2381
2382     pPoint++;
2383     lstrcpynA(pOut, pPoint, uOutSize);
2384     TRACE("%s\n",pOut);
2385
2386     return TRUE;
2387 }
2388
2389 /*************************************************************************
2390  * _ILGetFileType
2391  *
2392  * Given the ItemIdList, get the file type description
2393  *
2394  * PARAMS
2395  *      pidl        [I] The ItemIDList (simple)
2396  *      pOut        [I] The buffer to save the result
2397  *      uOutsize    [I] The size of the buffer
2398  *
2399  * RETURNS
2400  *    nothing
2401  *
2402  * NOTES
2403  *    This function copies as much as possible into the buffer.
2404  */
2405 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2406 {
2407     if(_ILIsValue(pidl))
2408     {
2409         char sTemp[64];
2410
2411         if(uOutSize > 0)
2412             pOut[0] = 0;
2413         if (_ILGetExtension (pidl, sTemp, 64))
2414         {
2415             if (!( HCR_MapTypeToValueA(sTemp, sTemp, 64, TRUE)
2416                 && HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE )))
2417             {
2418                 lstrcpynA (pOut, sTemp, uOutSize - 6);
2419                 strcat (pOut, "-file");
2420             }
2421         }
2422     }
2423     else
2424         lstrcpynA(pOut, "Folder", uOutSize);
2425 }
2426
2427 /*************************************************************************
2428  * _ILGetFileAttributes
2429  *
2430  * Given the ItemIdList, get the Attrib string format
2431  *
2432  * PARAMS
2433  *      pidl        [I] The ItemIDList
2434  *      pOut        [I] The buffer to save the result
2435  *      uOutsize    [I] The size of the Buffer
2436  *
2437  * RETURNS
2438  *     Attributes
2439  *
2440  * FIXME
2441  *  return value 0 in case of error is a valid return value
2442  *
2443  */
2444 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2445 {
2446     LPPIDLDATA pData = _ILGetDataPointer(pidl);
2447     WORD wAttrib = 0;
2448     int i;
2449
2450     if (!pData)
2451         return 0;
2452
2453     switch(pData->type)
2454     {
2455     case PT_FOLDER:
2456     case PT_VALUE:
2457         wAttrib = pData->u.file.uFileAttribs;
2458         break;
2459     }
2460
2461     if(uOutSize >= 6)
2462     {
2463         i=0;
2464         if(wAttrib & FILE_ATTRIBUTE_READONLY)
2465             pOut[i++] = 'R';
2466         if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
2467             pOut[i++] = 'H';
2468         if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
2469             pOut[i++] = 'S';
2470         if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
2471             pOut[i++] = 'A';
2472         if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
2473             pOut[i++] = 'C';
2474         pOut[i] = 0x00;
2475     }
2476     return wAttrib;
2477 }
2478
2479 /*************************************************************************
2480  * ILFreeaPidl
2481  *
2482  * free a aPidl struct
2483  */
2484 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
2485 {
2486     UINT   i;
2487
2488     if (apidl)
2489     {
2490         for (i = 0; i < cidl; i++)
2491             SHFree(apidl[i]);
2492         SHFree(apidl);
2493     }
2494 }
2495
2496 /*************************************************************************
2497  * ILCopyaPidl
2498  *
2499  * copies an aPidl struct
2500  */
2501 LPITEMIDLIST* _ILCopyaPidl(const LPCITEMIDLIST * apidlsrc, UINT cidl)
2502 {
2503     UINT i;
2504     LPITEMIDLIST *apidldest;
2505
2506     apidldest = SHAlloc(cidl * sizeof(LPITEMIDLIST));
2507     if (!apidlsrc)
2508         return NULL;
2509
2510     for (i = 0; i < cidl; i++)
2511         apidldest[i] = ILClone(apidlsrc[i]);
2512
2513     return apidldest;
2514 }
2515
2516 /*************************************************************************
2517  * _ILCopyCidaToaPidl
2518  *
2519  * creates aPidl from CIDA
2520  */
2521 LPITEMIDLIST* _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, const CIDA * cida)
2522 {
2523     UINT i;
2524     LPITEMIDLIST *dst;
2525
2526     dst = SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
2527     if (!dst)
2528         return NULL;
2529
2530     if (pidl)
2531         *pidl = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[0]]));
2532
2533     for (i = 0; i < cida->cidl; i++)
2534         dst[i] = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[i + 1]]));
2535
2536     return dst;
2537 }