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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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 NONAMELESSUNION
  34 #define NONAMELESSSTRUCT
  35 #include "windef.h"
  36 #include "winbase.h"
  37 #include "winreg.h"
  38 #include "objbase.h"
  39 #include "shlguid.h"
  40 #include "winerror.h"
  41 #include "winnls.h"
  42 #include "winternl.h"
  43 #include "undocshell.h"
  44 #include "shell32_main.h"
  45 #include "shellapi.h"
  46 #include "shlwapi.h"
  47
  48 #include "pidl.h"
  49 #include "debughlp.h"
  50 #include "wine/debug.h"
  51
  52 WINE_DEFAULT_DEBUG_CHANNEL(pidl);
  53 WINE_DECLARE_DEBUG_CHANNEL(shell);
  54
  55 /* from comctl32.dll */
  56 extern LPVOID WINAPI Alloc(INT);
  57 extern BOOL WINAPI Free(LPVOID);
  58
  59 /*************************************************************************
  60  * ILGetDisplayNameEx           [SHELL32.186]
  61  *
  62  * Retrieves the display name of an ItemIDList
  63  *
  64  * PARAMS
  65  *  psf        [I]   Shell Folder to start with, if NULL the desktop is used
  66  *  pidl       [I]   ItemIDList relativ to the psf to get the display name for
  67  *  path       [O]   Filled in with the display name, assumed to be at least MAX_PATH long
  68  *  type       [I]   Type of display name to retrieve
  69  *                    0 = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR uses always the desktop as root
  70  *                    1 = SHGDN_NORMAL relative to the root folder
  71  *                    2 = SHGDN_INFOLDER relative to the root folder, only the last name
  72  *
  73  * RETURNS
  74  *  True if the display name could be retrieved successfully, False otherwise
  75  */
  76 BOOL WINAPI ILGetDisplayNameExA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPSTR path, DWORD type)
  77 {
  78         BOOL ret = FALSE;
  79         WCHAR wPath[MAX_PATH];
  80
  81         TRACE("%p %p %p %ld\n", psf, pidl, path, type);
  82
  83         if (!pidl || !path)
  84           return FALSE;
  85
  86         ret = ILGetDisplayNameExW(psf, pidl, wPath, type);
  87         WideCharToMultiByte(CP_ACP, 0, wPath, -1, path, MAX_PATH, NULL, NULL);
  88         TRACE("%p %p %s\n", psf, pidl, debugstr_a(path));
  89
  90         return ret;
  91 }
  92
  93 BOOL WINAPI ILGetDisplayNameExW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPWSTR path, DWORD type)
  94 {
  95         LPSHELLFOLDER psfParent, lsf = psf;
  96         HRESULT ret = NO_ERROR;
  97         LPCITEMIDLIST pidllast;
  98         STRRET strret;
  99         DWORD flag;
 100
 101         TRACE("%p %p %p %ld\n", psf, pidl, path, type);
 102
 103         if (!pidl || !path)
 104           return FALSE;
 105
 106         if (!lsf)
 107         {
 108           ret = SHGetDesktopFolder(&lsf);
 109           if (FAILED(ret))
 110             return FALSE;
 111         }
 112
 113         if (type >= 0 && type <= 2)
 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 = %lx", type);
 128               flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 129               break;
 130           }
 131           if (!*(LPWORD)pidl || type == ILGDN_FORPARSING)
 132           {
 133             ret = IShellFolder_GetDisplayNameOf(lsf, pidl, flag, &strret);
 134             if (SUCCEEDED(ret))
 135             {
 136               ret = StrRetToStrNW(path, MAX_PATH, &strret, pidl);
 137             }
 138           }
 139           else
 140           {
 141             ret = SHBindToParent(pidl, &IID_IShellFolder, (LPVOID*)&psfParent, &pidllast);
 142             if (SUCCEEDED(ret))
 143             {
 144               ret = IShellFolder_GetDisplayNameOf(psfParent, pidllast, flag, &strret);
 145               if (SUCCEEDED(ret))
 146               {
 147                 ret = StrRetToStrNW(path, MAX_PATH, &strret, pidllast);
 148               }
 149               IShellFolder_Release(psfParent);
 150             }
 151           }
 152         }
 153
 154         TRACE("%p %p %s\n", psf, pidl, debugstr_w(path));
 155
 156         if (!psf)
 157           IShellFolder_Release(lsf);
 158         return SUCCEEDED(ret);
 159 }
 160
 161 BOOL WINAPI ILGetDisplayNameEx(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPVOID path, DWORD type)
 162 {
 163         TRACE_(shell)("%p %p %p %ld\n", psf, pidl, path, type);
 164         if (SHELL_OsIsUnicode())
 165           return ILGetDisplayNameExW(psf, pidl, path, type);
 166         return ILGetDisplayNameExA(psf, pidl, path, type);
 167 }
 168
 169 /*************************************************************************
 170  * ILGetDisplayName                     [SHELL32.15]
 171  */
 172 BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl, LPVOID path)
 173 {
 174         TRACE_(shell)("%p %p\n", pidl, path);
 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 {       LPCITEMIDLIST   pidlLast = pidl;
 188
 189         TRACE("(pidl=%p)\n",pidl);
 190
 191         while (pidl->mkid.cb)
 192         {
 193           pidlLast = pidl;
 194           pidl = ILGetNext(pidl);
 195         }
 196         return (LPITEMIDLIST)pidlLast;
 197 }
 198 /*************************************************************************
 199  * ILRemoveLastID [SHELL32.17]
 200  *
 201  * NOTES
 202  *   when pidl=Desktop return=FALSE
 203  */
 204 BOOL WINAPI ILRemoveLastID(LPCITEMIDLIST pidl)
 205 {
 206         TRACE_(shell)("pidl=%p\n",pidl);
 207
 208         if (!pidl || !pidl->mkid.cb)
 209           return 0;
 210         ILFindLastID(pidl)->mkid.cb = 0;
 211         return 1;
 212 }
 213
 214 /*************************************************************************
 215  * ILClone [SHELL32.18]
 216  *
 217  * NOTES
 218  *    duplicate an idlist
 219  */
 220 LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
 221 { DWORD    len;
 222   LPITEMIDLIST  newpidl;
 223
 224   if (!pidl)
 225     return NULL;
 226
 227   len = ILGetSize(pidl);
 228   newpidl = (LPITEMIDLIST)SHAlloc(len);
 229   if (newpidl)
 230     memcpy(newpidl,pidl,len);
 231
 232   TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 233   pdump(pidl);
 234
 235   return newpidl;
 236 }
 237 /*************************************************************************
 238  * ILCloneFirst [SHELL32.19]
 239  *
 240  * NOTES
 241  *  duplicates the first idlist of a complex pidl
 242  */
 243 LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
 244 {       DWORD len;
 245         LPITEMIDLIST pidlNew = NULL;
 246
 247         TRACE("pidl=%p \n",pidl);
 248         pdump(pidl);
 249
 250         if (pidl)
 251         {
 252           len = pidl->mkid.cb;
 253           pidlNew = (LPITEMIDLIST) SHAlloc (len+2);
 254           if (pidlNew)
 255           {
 256             memcpy(pidlNew,pidl,len+2);         /* 2 -> mind a desktop pidl */
 257
 258             if (len)
 259               ILGetNext(pidlNew)->mkid.cb = 0x00;
 260           }
 261         }
 262         TRACE("-- newpidl=%p\n",pidlNew);
 263
 264         return pidlNew;
 265 }
 266
 267 /*************************************************************************
 268  * ILLoadFromStream (SHELL32.26)
 269  *
 270  * NOTES
 271  *   the first two bytes are the len, the pidl is following then
 272  */
 273 HRESULT WINAPI ILLoadFromStream (IStream * pStream, LPITEMIDLIST * ppPidl)
 274 {       WORD            wLen = 0;
 275         DWORD           dwBytesRead;
 276         HRESULT         ret = E_FAIL;
 277
 278
 279         TRACE_(shell)("%p %p\n", pStream ,  ppPidl);
 280
 281         if (*ppPidl)
 282         { SHFree(*ppPidl);
 283           *ppPidl = NULL;
 284         }
 285
 286         IStream_AddRef (pStream);
 287
 288         if (SUCCEEDED(IStream_Read(pStream, (LPVOID)&wLen, 2, &dwBytesRead)))
 289         {
 290           TRACE("PIDL length is %d\n", wLen);
 291           if (wLen != 0) {
 292             *ppPidl = SHAlloc (wLen);
 293             if (SUCCEEDED(IStream_Read(pStream, *ppPidl , wLen, &dwBytesRead))) {
 294                 TRACE("Stream read OK\n");
 295                 ret = S_OK;
 296             } else {
 297                 WARN("reading pidl failed\n");
 298                 SHFree(*ppPidl);
 299                 *ppPidl = NULL;
 300             }
 301           } else {
 302             *ppPidl = NULL;
 303             ret = S_OK;
 304           }
 305         }
 306
 307         /* we are not yet fully compatible */
 308         if (*ppPidl && !pcheck(*ppPidl))
 309         {
 310           WARN("Check failed\n");
 311           SHFree(*ppPidl);
 312           *ppPidl = NULL;
 313         }
 314
 315
 316         IStream_Release (pStream);
 317         TRACE("done\n");
 318         return ret;
 319 }
 320
 321 /*************************************************************************
 322  * ILSaveToStream (SHELL32.27)
 323  *
 324  * NOTES
 325  *   the first two bytes are the len, the pidl is following then
 326  */
 327 HRESULT WINAPI ILSaveToStream (IStream * pStream, LPCITEMIDLIST pPidl)
 328 {
 329         LPCITEMIDLIST   pidl;
 330         WORD            wLen = 0;
 331         HRESULT         ret = E_FAIL;
 332
 333         TRACE_(shell)("%p %p\n", pStream, pPidl);
 334
 335         IStream_AddRef (pStream);
 336
 337         pidl = pPidl;
 338         while (pidl->mkid.cb)
 339         {
 340           wLen += sizeof(WORD) + pidl->mkid.cb;
 341           pidl = ILGetNext(pidl);
 342         }
 343
 344         if (SUCCEEDED(IStream_Write(pStream, (LPVOID)&wLen, 2, NULL)))
 345         {
 346           if (SUCCEEDED(IStream_Write(pStream, pPidl, wLen, NULL)))
 347           { ret = S_OK;
 348           }
 349         }
 350         IStream_Release (pStream);
 351
 352         return ret;
 353 }
 354
 355 /*************************************************************************
 356  * SHILCreateFromPath        [SHELL32.28]
 357  *
 358  * Create an ItemIDList from a path
 359  *
 360  * PARAMS
 361  *  path       [I]
 362  *  ppidl      [O]
 363  *  attributes [I/O] requested attributes on call and actual attributes when
 364  *                   the function returns
 365  *
 366  * RETURNS
 367  *  NO_ERROR if successful, or an OLE errer code otherwise
 368  *
 369  * NOTES
 370  *  Wrapper for IShellFolder_ParseDisplayName().
 371  */
 372 HRESULT WINAPI SHILCreateFromPathA(LPCSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 373 {
 374         LPSHELLFOLDER sf;
 375         WCHAR lpszDisplayName[MAX_PATH];
 376         DWORD pchEaten;
 377         HRESULT ret = E_FAIL;
 378
 379         TRACE_(shell)("%s %p 0x%08lx\n", path, ppidl, attributes ? *attributes : 0);
 380
 381         if (!MultiByteToWideChar(CP_ACP, 0, path, -1, lpszDisplayName, MAX_PATH))
 382           lpszDisplayName[MAX_PATH-1] = 0;
 383
 384         if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 385         {
 386           ret = IShellFolder_ParseDisplayName(sf, 0, NULL, lpszDisplayName, &pchEaten, ppidl, attributes);
 387           IShellFolder_Release(sf);
 388         }
 389         return ret;
 390 }
 391
 392 HRESULT WINAPI SHILCreateFromPathW(LPCWSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 393 {
 394         LPSHELLFOLDER sf;
 395         DWORD pchEaten;
 396         HRESULT ret = E_FAIL;
 397
 398         TRACE_(shell)("%s %p 0x%08lx\n", debugstr_w(path), ppidl, attributes ? *attributes : 0);
 399
 400         if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 401         {
 402           ret = IShellFolder_ParseDisplayName(sf, 0, NULL, (LPWSTR)path, &pchEaten, ppidl, attributes);
 403           IShellFolder_Release(sf);
 404         }
 405         return ret;
 406 }
 407
 408 HRESULT WINAPI SHILCreateFromPathAW (LPCVOID path, LPITEMIDLIST * ppidl, DWORD * attributes)
 409 {
 410         if ( SHELL_OsIsUnicode())
 411           return SHILCreateFromPathW (path, ppidl, attributes);
 412         return SHILCreateFromPathA (path, ppidl, attributes);
 413 }
 414
 415 /*************************************************************************
 416  * SHCloneSpecialIDList      [SHELL32.89]
 417  *
 418  * Create an ItemIDList to one of the special folders.
 419
 420  * PARAMS
 421  *  hwndOwner   [in]
 422  *  nFolder             [in]    CSIDL_xxxxx
 423  *  fCreate             [in]    Create folder if it does not exist
 424  *
 425  * RETURNS
 426  *  Success: The newly created pidl
 427  *  Failure: NULL, if inputs are invalid.
 428  *
 429  * NOTES
 430  *  exported by ordinal.
 431  *  Caller is responsible for deallocating the returned ItemIDList with the
 432  *  shells IMalloc interface, aka ILFree.
 433  */
 434 LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner, DWORD nFolder, BOOL fCreate)
 435 {       LPITEMIDLIST ppidl;
 436         TRACE_(shell)("(hwnd=%p,csidl=0x%lx,%s).\n", hwndOwner, nFolder, fCreate ? "T" : "F");
 437
 438         if (fCreate)
 439           nFolder |= CSIDL_FLAG_CREATE;
 440
 441         SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
 442         return ppidl;
 443 }
 444
 445 /*************************************************************************
 446  * ILGlobalClone             [SHELL32.20]
 447  *
 448  * Clones an ItemIDList using Alloc.
 449  *
 450  * PARAMS
 451  *  pidl       [I]   ItemIDList to clone
 452  *
 453  * RETURNS
 454  *  Newly allocated ItemIDList.
 455  *
 456  * NOTES
 457  *  exported by ordinal.
 458  */
 459 LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
 460 {       DWORD    len;
 461         LPITEMIDLIST  newpidl;
 462
 463         if (!pidl)
 464           return NULL;
 465
 466         len = ILGetSize(pidl);
 467         newpidl = (LPITEMIDLIST)Alloc(len);
 468         if (newpidl)
 469           memcpy(newpidl,pidl,len);
 470
 471         TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 472         pdump(pidl);
 473
 474         return newpidl;
 475 }
 476
 477 /*************************************************************************
 478  * ILIsEqual [SHELL32.21]
 479  *
 480  */
 481 BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 482 {
 483         char    szData1[MAX_PATH];
 484         char    szData2[MAX_PATH];
 485
 486         LPCITEMIDLIST pidltemp1 = pidl1;
 487         LPCITEMIDLIST pidltemp2 = pidl2;
 488
 489         TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 490
 491         /* explorer reads from registry directly (StreamMRU),
 492            so we can only check here */
 493         if ((!pcheck (pidl1)) || (!pcheck (pidl2))) return FALSE;
 494
 495         pdump (pidl1);
 496         pdump (pidl2);
 497
 498         if ( (!pidl1) || (!pidl2) ) return FALSE;
 499
 500         while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 501         {
 502             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 503             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 504
 505             if (strcasecmp ( szData1, szData2 )!=0 )
 506               return FALSE;
 507
 508             pidltemp1 = ILGetNext(pidltemp1);
 509             pidltemp2 = ILGetNext(pidltemp2);
 510         }
 511
 512         if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
 513         {
 514           return TRUE;
 515         }
 516
 517         return FALSE;
 518 }
 519 /*************************************************************************
 520  * ILIsParent                [SHELL32.23]
 521  *
 522  * Verifies that pidlParent is indeed the (immediate) parent of pidlChild.
 523  *
 524  * PARAMS
 525  *  pidlParent [I]
 526  *  pidlChild  [I]
 527  *  bImmediate [I]   only return true if the parent is the direct parent
 528  *                   of the child
 529  *
 530  * RETURNS
 531  *  True if the parent ItemIDlist is a complete part of the child ItemIdList,
 532  *  False otherwise.
 533  *
 534  * NOTES
 535  *  parent = a/b, child = a/b/c -> true, c is in folder a/b
 536  *  child = a/b/c/d -> false if bImmediate is true, d is not in folder a/b
 537  *  child = a/b/c/d -> true if bImmediate is false, d is in a subfolder of a/b
 538  */
 539 BOOL WINAPI ILIsParent(LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
 540 {
 541         char    szData1[MAX_PATH];
 542         char    szData2[MAX_PATH];
 543
 544         LPCITEMIDLIST pParent = pidlParent;
 545         LPCITEMIDLIST pChild = pidlChild;
 546
 547         TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
 548
 549         if (!pParent || !pChild) return FALSE;
 550
 551         while (pParent->mkid.cb && pChild->mkid.cb)
 552         {
 553           _ILSimpleGetText(pParent, szData1, MAX_PATH);
 554           _ILSimpleGetText(pChild, szData2, MAX_PATH);
 555
 556           if (strcasecmp ( szData1, szData2 )!=0 )
 557             return FALSE;
 558
 559           pParent = ILGetNext(pParent);
 560           pChild = ILGetNext(pChild);
 561         }
 562
 563         if ( pParent->mkid.cb || ! pChild->mkid.cb) /* child shorter or has equal length to parent */
 564           return FALSE;
 565
 566         if ( ILGetNext(pChild)->mkid.cb && bImmediate) /* not immediate descent */
 567           return FALSE;
 568
 569         return TRUE;
 570 }
 571
 572 /*************************************************************************
 573  * ILFindChild               [SHELL32.24]
 574  *
 575  *  Compares elements from pidl1 and pidl2.
 576  *
 577  * PARAMS
 578  *  pidl1      [I]
 579  *  pidl2      [I]
 580  *
 581  * RETURNS
 582  *  pidl1 is desktop      pidl2
 583  *  pidl1 shorter pidl2   pointer to first different element of pidl2
 584  *                        if there was at least one equal element
 585  *  pidl2 shorter pidl1   0
 586  *  pidl2 equal pidl1     pointer to last 0x00-element of pidl2
 587  *
 588  * NOTES
 589  *  exported by ordinal.
 590  */
 591 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 592 {
 593         char    szData1[MAX_PATH];
 594         char    szData2[MAX_PATH];
 595
 596         LPCITEMIDLIST pidltemp1 = pidl1;
 597         LPCITEMIDLIST pidltemp2 = pidl2;
 598         LPCITEMIDLIST ret=NULL;
 599
 600         TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 601
 602         /* explorer reads from registry directly (StreamMRU),
 603            so we can only check here */
 604         if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
 605           return FALSE;
 606
 607         pdump (pidl1);
 608         pdump (pidl2);
 609
 610         if ( _ILIsDesktop(pidl1) )
 611         {
 612           ret = pidl2;
 613         }
 614         else
 615         {
 616           while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 617           {
 618             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 619             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 620
 621             if (strcasecmp(szData1,szData2))
 622               break;
 623
 624             pidltemp1 = ILGetNext(pidltemp1);
 625             pidltemp2 = ILGetNext(pidltemp2);
 626             ret = pidltemp2;
 627           }
 628
 629           if (pidltemp1->mkid.cb)
 630           {
 631             ret = NULL; /* elements of pidl1 left*/
 632           }
 633         }
 634         TRACE_(shell)("--- %p\n", ret);
 635         return (LPITEMIDLIST)ret; /* pidl 1 is shorter */
 636 }
 637
 638 /*************************************************************************
 639  * ILCombine                 [SHELL32.25]
 640  *
 641  * Concatenates two complex ItemIDLists.
 642  *
 643  * PARAMS
 644  *  pidl1      [I]   first complex ItemIDLists
 645  *  pidl2      [I]   complex ItemIDLists to append
 646  *
 647  * RETURNS
 648  *  if both pidl's == NULL      NULL
 649  *  if pidl1 == NULL            cloned pidl2
 650  *  if pidl2 == NULL            cloned pidl1
 651  *  otherwise new pidl with pidl2 appended to pidl1
 652  *
 653  * NOTES
 654  *  exported by ordinal.
 655  *  Does not destroy the passed in ItemIDLists!
 656  */
 657 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 658 {
 659         DWORD    len1,len2;
 660         LPITEMIDLIST  pidlNew;
 661
 662         TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
 663
 664         if(!pidl1 && !pidl2) return NULL;
 665
 666         pdump (pidl1);
 667         pdump (pidl2);
 668
 669         if(!pidl1)
 670         {
 671           pidlNew = ILClone(pidl2);
 672           return pidlNew;
 673         }
 674
 675         if(!pidl2)
 676         {
 677           pidlNew = ILClone(pidl1);
 678           return pidlNew;
 679         }
 680
 681         len1  = ILGetSize(pidl1)-2;
 682         len2  = ILGetSize(pidl2);
 683         pidlNew  = SHAlloc(len1+len2);
 684
 685         if (pidlNew)
 686         {
 687           memcpy(pidlNew,pidl1,len1);
 688           memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 689         }
 690
 691         /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 692         return pidlNew;
 693 }
 694
 695 /*************************************************************************
 696  *  SHGetRealIDL [SHELL32.98]
 697  *
 698  * NOTES
 699  */
 700 HRESULT WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPCITEMIDLIST pidlSimple, LPITEMIDLIST *pidlReal)
 701 {
 702         IDataObject* pDataObj;
 703         HRESULT hr = IShellFolder_GetUIObjectOf(lpsf, 0, 1, &pidlSimple, &IID_IDataObject, 0, (LPVOID*)&pDataObj);
 704
 705         if (SUCCEEDED(hr)) {
 706             STGMEDIUM medium;
 707             FORMATETC fmt;
 708
 709             fmt.cfFormat = RegisterClipboardFormatA(CFSTR_SHELLIDLIST);
 710             fmt.ptd = NULL;
 711             fmt.dwAspect = DVASPECT_CONTENT;
 712             fmt.lindex = -1;
 713             fmt.tymed = TYMED_HGLOBAL;
 714
 715             hr = IDataObject_GetData(pDataObj, &fmt, &medium);
 716
 717             IDataObject_Release(pDataObj);
 718
 719             if (SUCCEEDED(hr)) {
 720                 /*assert(pida->cidl==1);*/
 721                 LPIDA pida = (LPIDA)GlobalLock(medium.u.hGlobal);
 722
 723                 LPCITEMIDLIST pidl_folder = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[0]);
 724                 LPCITEMIDLIST pidl_child = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[1]);
 725
 726                 *pidlReal = ILCombine(pidl_folder, pidl_child);
 727
 728                 if (!*pidlReal)
 729                         hr = E_OUTOFMEMORY;
 730
 731                 GlobalUnlock(medium.u.hGlobal);
 732                 GlobalFree(medium.u.hGlobal);
 733             }
 734         }
 735
 736         return hr;
 737 }
 738
 739 /*************************************************************************
 740  *  SHLogILFromFSIL [SHELL32.95]
 741  *
 742  * NOTES
 743  *  pild = CSIDL_DESKTOP        ret = 0
 744  *  pild = CSIDL_DRIVES         ret = 0
 745  */
 746 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 747 {
 748         FIXME("(pidl=%p)\n",pidl);
 749
 750         pdump(pidl);
 751
 752         return 0;
 753 }
 754
 755 /*************************************************************************
 756  * ILGetSize                 [SHELL32.152]
 757  *
 758  * Gets the byte size of an ItemIDList including zero terminator
 759  *
 760  * PARAMS
 761  *  pidl       [I]   ItemIDList
 762  *
 763  * RETURNS
 764  *  size of pidl in bytes
 765  *
 766  * NOTES
 767  *  exported by ordinal
 768  */
 769 DWORD WINAPI ILGetSize(LPCITEMIDLIST pidl)
 770 {
 771         LPCSHITEMID si = &(pidl->mkid);
 772         DWORD  len=0;
 773
 774         if (pidl)
 775         { while (si->cb)
 776           { len += si->cb;
 777             si  = (LPSHITEMID)(((LPBYTE)si)+si->cb);
 778           }
 779           len += 2;
 780         }
 781         TRACE("pidl=%p size=%lu\n",pidl, len);
 782         return len;
 783 }
 784
 785 /*************************************************************************
 786  * ILGetNext                 [SHELL32.153]
 787  *
 788  * Gets the next ItemID of an ItemIDList
 789  *
 790  * PARAMS
 791  *  pidl       [I]   ItemIDList
 792  *
 793  * RETURNS
 794  *  null -> null
 795  *  desktop -> null
 796  *  simple pidl -> pointer to 0x0000 element
 797  *
 798  * NOTES
 799  *  exported by ordinal.
 800  */
 801 LPITEMIDLIST WINAPI ILGetNext(LPCITEMIDLIST pidl)
 802 {
 803         WORD len;
 804
 805         TRACE("%p\n", pidl);
 806
 807         if(pidl)
 808         {
 809           len =  pidl->mkid.cb;
 810           if (len)
 811           {
 812             pidl = (LPITEMIDLIST) (((LPBYTE)pidl)+len);
 813             TRACE("-- %p\n", pidl);
 814             return (LPITEMIDLIST)pidl;
 815           }
 816         }
 817         return NULL;
 818 }
 819
 820 /*************************************************************************
 821  * ILAppend                  [SHELL32.154]
 822  *
 823  * Adds the single ItemID item to the ItemIDList indicated by pidl.
 824  * If bEnd is FALSE, inserts the item in the front of the list,
 825  * otherwise it adds the item to the end. (???)
 826  *
 827  * PARAMS
 828  *  pidl       [I]   ItemIDList to extend
 829  *  item       [I]   ItemID to prepend/append
 830  *  bEnd       [I]   Indicates if the item should be appended
 831  *
 832  * NOTES
 833  *  Destroys the passed in idlist! (???)
 834  */
 835 LPITEMIDLIST WINAPI ILAppend(LPITEMIDLIST pidl, LPCITEMIDLIST item, BOOL bEnd)
 836 {
 837         LPITEMIDLIST idlRet;
 838
 839         WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 840
 841         pdump (pidl);
 842         pdump (item);
 843
 844         if (_ILIsDesktop(pidl))
 845         {
 846            idlRet = ILClone(item);
 847            if (pidl)
 848              SHFree (pidl);
 849            return idlRet;
 850         }
 851
 852         if (bEnd)
 853         {
 854           idlRet = ILCombine(pidl, item);
 855         }
 856         else
 857         {
 858           idlRet = ILCombine(item, pidl);
 859         }
 860
 861         SHFree(pidl);
 862         return idlRet;
 863 }
 864
 865 /*************************************************************************
 866  * ILFree                    [SHELL32.155]
 867  *
 868  * Frees memory (if not NULL) allocated by SHMalloc allocator
 869  *
 870  * PARAMS
 871  *  pidl         [I]
 872  *
 873  * NOTES
 874  *  exported by ordinal
 875  */
 876 DWORD WINAPI ILFree(LPITEMIDLIST pidl)
 877 {
 878         TRACE("(pidl=0x%08lx)\n",(DWORD)pidl);
 879
 880         if(!pidl) return FALSE;
 881         SHFree(pidl);
 882         return TRUE;
 883 }
 884
 885 /*************************************************************************
 886  * ILGlobalFree              [SHELL32.156]
 887  *
 888  * Frees memory (if not NULL) allocated by Alloc allocator
 889  *
 890  * PARAMS
 891  *  pidl         [I]
 892  *
 893  * NOTES
 894  *  exported by ordinal.
 895  */
 896 void WINAPI ILGlobalFree( LPITEMIDLIST pidl)
 897 {
 898         TRACE("%p\n", pidl);
 899
 900         if(!pidl) return;
 901         Free(pidl);
 902 }
 903
 904 /*************************************************************************
 905  * ILCreateFromPathA         [SHELL32.189]
 906  *
 907  * Creates a complex ItemIDList from a path and returns it.
 908  *
 909  * PARAMS
 910  *  path         [I]
 911  *
 912  * RETURNS
 913  *  the newly created complex ItemIDList or NULL if failed
 914  *
 915  * NOTES
 916  *  exported by ordinal.
 917  */
 918
 919 LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
 920 {
 921         LPITEMIDLIST pidlnew = NULL;
 922
 923         TRACE_(shell)("%s\n", debugstr_a(path));
 924
 925         if (SUCCEEDED(SHILCreateFromPathA(path, &pidlnew, NULL)))
 926           return pidlnew;
 927         return NULL;
 928 }
 929
 930 /*************************************************************************
 931  * ILCreateFromPathW         [SHELL32.190]
 932  */
 933 LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
 934 {
 935         LPITEMIDLIST pidlnew = NULL;
 936
 937         TRACE_(shell)("%s\n", debugstr_w(path));
 938
 939         if (SUCCEEDED(SHILCreateFromPathW(path, &pidlnew, NULL)))
 940           return pidlnew;
 941         return NULL;
 942 }
 943
 944 /*************************************************************************
 945  * ILCreateFromPath          [SHELL32.157]
 946  */
 947 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
 948 {
 949         if ( SHELL_OsIsUnicode())
 950           return ILCreateFromPathW (path);
 951         return ILCreateFromPathA (path);
 952 }
 953
 954 /*************************************************************************
 955  * _ILParsePathW             [internal]
 956  *
 957  * Creates an ItemIDList from a path and returns it.
 958  *
 959  * PARAMS
 960  *  path         [I]   path to parse and convert into an ItemIDList
 961  *  lpFindFile   [I]   pointer to buffer to initialize the FileSystem
 962  *                     Bind Data object with
 963  *  bBindCtx     [I]   indicates to create a BindContext and assign a
 964  *                     FileSystem Bind Data object
 965  *  ppidl        [O]   the newly create ItemIDList
 966  *  prgfInOut    [I/O] requested attributes on input and actual
 967  *                     attributes on return
 968  *
 969  * RETURNS
 970  *  NO_ERROR on success or an OLE error code
 971  *
 972  * NOTES
 973  *  If either lpFindFile is non-NULL or bBindCtx is TRUE, this function
 974  *  creates a BindContext object and assigns a FileSystem Bind Data object
 975  *  to it, passing the BindContext to IShellFolder_ParseDisplayName. Each
 976  *  IShellFolder uses that FileSystem Bind Data object of the BindContext
 977  *  to pass data about the current path element to the next object. This
 978  *  is used to avoid having to verify the current path element on disk, so
 979  *  that creating an ItemIDList from a non-existent path still can work.
 980  */
 981 static HRESULT WINAPI _ILParsePathW(LPCWSTR path, LPWIN32_FIND_DATAW lpFindFile,
 982                              BOOL bBindCtx, LPITEMIDLIST *ppidl, LPDWORD prgfInOut)
 983 {
 984         LPSHELLFOLDER pSF = NULL;
 985         LPBC pBC = NULL;
 986         HRESULT ret;
 987
 988         TRACE("%s %p %d (%p)->%p (%p)->0x%lx\n", debugstr_w(path), lpFindFile, bBindCtx,
 989                                                  ppidl, ppidl ? *ppidl : NULL,
 990                                                  prgfInOut, prgfInOut ? *prgfInOut : 0);
 991
 992         ret = SHGetDesktopFolder(&pSF);
 993         if (FAILED(ret))
 994         {
 995           return ret;
 996         }
 997
 998         if (lpFindFile || bBindCtx)
 999           ret = IFileSystemBindData_Constructor(lpFindFile, &pBC);
1000
1001         if (SUCCEEDED(ret))
1002         {
1003           ret = IShellFolder_ParseDisplayName(pSF, 0, pBC, (LPOLESTR)path, NULL, ppidl, prgfInOut);
1004         }
1005
1006         if (pBC)
1007         {
1008           IBindCtx_Release(pBC);
1009           pBC = NULL;
1010         }
1011
1012         IShellFolder_Release(pSF);
1013
1014         if (!SUCCEEDED(ret) && ppidl)
1015           *ppidl = NULL;
1016
1017         TRACE("%s %p 0x%lx\n", debugstr_w(path), ppidl ? *ppidl : NULL, prgfInOut ? *prgfInOut : 0);
1018
1019         return ret;
1020 }
1021
1022 /*************************************************************************
1023  * SHSimpleIDListFromPath    [SHELL32.162]
1024  *
1025  * Creates a simple ItemIDList from a path and returns it. This function
1026  * does not fail on non-existent paths.
1027  *
1028  * PARAMS
1029  *  path         [I]   path to parse and convert into an ItemIDList
1030  *
1031  * RETURNS
1032  *  the newly created simple ItemIDList
1033  *
1034  * NOTES
1035  *  Simple in the name does not mean a relative ItemIDList but rather a
1036  *  fully qualified list, where only the file name is filled in and the
1037  *  directory flag for those ItemID elements this is known about, eg.
1038  *  it is not the last element in the ItemIDList or the actual directory
1039  *  exists on disk.
1040  *  exported by ordinal.
1041  */
1042 LPITEMIDLIST WINAPI SHSimpleIDListFromPathA(LPCSTR lpszPath)
1043 {
1044         LPITEMIDLIST pidl = NULL;
1045         UNICODE_STRING wPath;
1046
1047         TRACE("%s\n", debugstr_a(lpszPath));
1048
1049         RtlCreateUnicodeStringFromAsciiz(&wPath, lpszPath);
1050
1051         _ILParsePathW(wPath.Buffer, NULL, TRUE, &pidl, NULL);
1052         RtlFreeUnicodeString(&wPath);
1053
1054         TRACE("%s %p\n", debugstr_a(lpszPath), pidl);
1055         return pidl;
1056 }
1057
1058 LPITEMIDLIST WINAPI SHSimpleIDListFromPathW(LPCWSTR lpszPath)
1059 {
1060         LPITEMIDLIST pidl = NULL;
1061
1062         TRACE("%s\n", debugstr_w(lpszPath));
1063
1064         _ILParsePathW(lpszPath, NULL, TRUE, &pidl, NULL);
1065         TRACE("%s %p\n", debugstr_w(lpszPath), pidl);
1066         return pidl;
1067 }
1068
1069 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW(LPCVOID lpszPath)
1070 {
1071         if ( SHELL_OsIsUnicode())
1072           return SHSimpleIDListFromPathW (lpszPath);
1073         return SHSimpleIDListFromPathA (lpszPath);
1074 }
1075
1076 /*************************************************************************
1077  * SHGetSpecialFolderLocation           [SHELL32.@]
1078  *
1079  * gets the folder locations from the registry and creates a pidl
1080  * creates missing reg keys and directories
1081  *
1082  * PARAMS
1083  *   hwndOwner [I]
1084  *   nFolder   [I] CSIDL_xxxxx
1085  *   ppidl     [O] PIDL of a special folder
1086  *
1087  * NOTES
1088  *   In NT5, SHGetSpecialFolderLocation needs the <winntdir>/Recent
1089  *   directory. If the directory is missing it returns a x80070002.
1090  */
1091 HRESULT WINAPI SHGetSpecialFolderLocation(
1092         HWND hwndOwner,
1093         INT nFolder,
1094         LPITEMIDLIST * ppidl)
1095 {
1096         CHAR            szPath[MAX_PATH];
1097         HRESULT         hr = E_INVALIDARG;
1098
1099         TRACE_(shell)("(%p,0x%x,%p)\n", hwndOwner,nFolder,ppidl);
1100
1101         if (ppidl)
1102         {
1103           *ppidl = NULL;
1104           switch (nFolder)
1105           {
1106             case CSIDL_DESKTOP:
1107               *ppidl = _ILCreateDesktop();
1108               break;
1109
1110             case CSIDL_DRIVES:
1111               *ppidl = _ILCreateMyComputer();
1112               break;
1113
1114             case CSIDL_NETWORK:
1115               *ppidl = _ILCreateNetwork ();
1116               break;
1117
1118             case CSIDL_CONTROLS:
1119               *ppidl = _ILCreateControl ();
1120               break;
1121
1122             case CSIDL_PRINTERS:
1123               *ppidl = _ILCreatePrinter ();
1124               break;
1125
1126             case CSIDL_BITBUCKET:
1127               *ppidl = _ILCreateBitBucket ();
1128               break;
1129
1130             default:
1131               if (SHGetSpecialFolderPathA(hwndOwner, szPath, nFolder, TRUE))
1132               {
1133                 DWORD attributes=0;
1134                 TRACE_(shell)("Value=%s\n",szPath);
1135                 hr = SHILCreateFromPathA(szPath, ppidl, &attributes);
1136               }
1137           }
1138           if(*ppidl) hr = NOERROR;
1139         }
1140
1141         TRACE_(shell)("-- (new pidl %p)\n",*ppidl);
1142         return hr;
1143 }
1144
1145 /*************************************************************************
1146  * SHGetFolderLocation [SHELL32.@]
1147  *
1148  * NOTES
1149  *  the pidl can be a simple one. since we cant get the path out of the pidl
1150  *  we have to take all data from the pidl
1151  */
1152 HRESULT WINAPI SHGetFolderLocation(
1153         HWND hwnd,
1154         int csidl,
1155         HANDLE hToken,
1156         DWORD dwFlags,
1157         LPITEMIDLIST *ppidl)
1158 {
1159         FIXME("%p 0x%08x %p 0x%08lx %p\n",
1160          hwnd, csidl, hToken, dwFlags, ppidl);
1161         return SHGetSpecialFolderLocation(hwnd, csidl, ppidl);
1162 }
1163
1164 /*************************************************************************
1165  * SHGetDataFromIDListA [SHELL32.247]
1166  *
1167  * NOTES
1168  *  the pidl can be a simple one. since we cant get the path out of the pidl
1169  *  we have to take all data from the pidl
1170  */
1171 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
1172 {
1173         TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1174
1175         pdump(pidl);
1176         if (!psf || !dest )  return E_INVALIDARG;
1177
1178         switch (nFormat)
1179         {
1180           case SHGDFIL_FINDDATA:
1181             {
1182                LPSTR filename, shortname;
1183                WIN32_FIND_DATAA * pfd = dest;
1184
1185                if (_ILIsDrive(pidl))
1186                    return E_INVALIDARG;
1187
1188                if (len < (int)sizeof(WIN32_FIND_DATAA)) return E_INVALIDARG;
1189
1190                ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1191                _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1192                pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1193                pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1194
1195                filename = _ILGetTextPointer(pidl);
1196                shortname = _ILGetSTextPointer(pidl);
1197
1198                if (filename)
1199                    lstrcpynA(pfd->cFileName, filename, MAX_PATH);
1200                else
1201                    pfd->cFileName[0] = '\0';
1202
1203                if (shortname)
1204                    lstrcpynA(pfd->cAlternateFileName, shortname, MAX_PATH);
1205                else
1206                    pfd->cAlternateFileName[0] = '\0';
1207             }
1208             return NOERROR;
1209
1210           case SHGDFIL_NETRESOURCE:
1211           case SHGDFIL_DESCRIPTIONID:
1212             FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1213             break;
1214
1215           default:
1216             ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1217         }
1218
1219         return E_INVALIDARG;
1220 }
1221
1222 /*************************************************************************
1223  * SHGetDataFromIDListW [SHELL32.248]
1224  *
1225  */
1226 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
1227 {
1228         TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1229
1230         pdump(pidl);
1231
1232         if (! psf || !dest )  return E_INVALIDARG;
1233
1234         switch (nFormat)
1235         {
1236           case SHGDFIL_FINDDATA:
1237             {
1238                LPSTR filename, shortname;
1239                WIN32_FIND_DATAW * pfd = dest;
1240
1241                if (_ILIsDrive(pidl))
1242                    return E_INVALIDARG;
1243
1244                if (len < (int)sizeof(WIN32_FIND_DATAW)) return E_INVALIDARG;
1245
1246                ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1247                _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1248                pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1249                pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1250
1251                filename = _ILGetTextPointer(pidl);
1252                shortname = _ILGetSTextPointer(pidl);
1253
1254                if (!filename)
1255                    pfd->cFileName[0] = '\0';
1256                else if (!MultiByteToWideChar(CP_ACP, 0, filename, -1, pfd->cFileName, MAX_PATH))
1257                    pfd->cFileName[MAX_PATH-1] = 0;
1258
1259                if (!shortname)
1260                    pfd->cAlternateFileName[0] = '\0';
1261                else if (!MultiByteToWideChar(CP_ACP, 0, shortname, -1, pfd->cAlternateFileName, 14))
1262                    pfd->cAlternateFileName[13] = 0;
1263             }
1264             return NOERROR;
1265           case SHGDFIL_NETRESOURCE:
1266           case SHGDFIL_DESCRIPTIONID:
1267             FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1268             break;
1269
1270           default:
1271             ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1272         }
1273
1274         return E_INVALIDARG;
1275 }
1276
1277 /*************************************************************************
1278  * SHELL_GetPathFromIDListA
1279  */
1280 HRESULT SHELL_GetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath, UINT uOutSize)
1281 {
1282         LPSTR pstr = pszPath;
1283         LPSTR end = pszPath + uOutSize;
1284         HRESULT hr = S_OK;
1285
1286         /* One case is a PIDL rooted at desktop level */
1287         if (_ILIsValue(pidl) || _ILIsFolder(pidl)) {
1288             hr = SHGetSpecialFolderPathA(0, pstr, CSIDL_DESKTOP, FALSE);
1289
1290             if (SUCCEEDED(hr))
1291                 pstr = PathAddBackslashA(pstr);
1292         }
1293         /* The only other valid case is a item ID list beginning at "My Computer" */
1294         else if (_ILIsMyComputer(pidl))
1295             pidl = ILGetNext(pidl);
1296
1297         if (SUCCEEDED(hr)) {
1298             LPSTR txt;
1299
1300             while(pidl && pidl->mkid.cb && pstr<end) {
1301                 if (_ILIsSpecialFolder(pidl))
1302                     {hr = E_INVALIDARG; break;}
1303
1304                 txt = _ILGetTextPointer(pidl);
1305                 if (!txt)
1306                     {hr = E_INVALIDARG; break;}
1307
1308                 lstrcpynA(pstr, txt, end-pstr);
1309
1310                 pidl = ILGetNext(pidl);
1311                 if (!pidl)
1312                     {hr = E_INVALIDARG; break;}
1313
1314                 if (!pidl->mkid.cb) {
1315                     /* We are at the end and successfully converted the complete PIDL. */
1316                     break;
1317                 }
1318
1319                 pstr = PathAddBackslashA(pstr);
1320                 if (!pstr)
1321                     {hr = E_INVALIDARG; break;}
1322             }
1323         } else
1324             hr = E_INVALIDARG;
1325
1326         TRACE_(shell)("-- %s, 0x%08lx\n", pszPath, hr);
1327         return hr;
1328 }
1329
1330 /*************************************************************************
1331  * SHGetPathFromIDListA         [SHELL32.@][NT 4.0: SHELL32.220]
1332  *
1333  * PARAMETERS
1334  *  pidl,   [IN] pidl
1335  *  pszPath [OUT] path
1336  *
1337  * RETURNS
1338  *  path from a passed PIDL.
1339  *
1340  * NOTES
1341  *      NULL returns FALSE
1342  *      desktop pidl gives path to desktop directory back
1343  *      special pidls returning FALSE
1344  */
1345 BOOL WINAPI SHGetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath)
1346 {
1347         HRESULT hr;
1348
1349         TRACE_(shell)("(pidl=%p,%p)\n",pidl,pszPath);
1350         pdump(pidl);
1351
1352         if (!pidl)
1353             return FALSE;
1354
1355         hr = SHELL_GetPathFromIDListA(pidl, pszPath, MAX_PATH);
1356
1357         return SUCCEEDED(hr);
1358 }
1359
1360 /*************************************************************************
1361  * SHELL_GetPathFromIDListW
1362  */
1363 HRESULT SHELL_GetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath, UINT uOutSize)
1364 {
1365         LPWSTR pstr = pszPath;
1366         LPWSTR end = pszPath + uOutSize;
1367         HRESULT hr = S_OK;
1368
1369         /* One case is a PIDL rooted at desktop level */
1370         if (_ILIsValue(pidl) || _ILIsFolder(pidl)) {
1371             hr = SHGetSpecialFolderPathW(0, pstr, CSIDL_DESKTOP, FALSE);
1372
1373             if (SUCCEEDED(hr))
1374                 pstr = PathAddBackslashW(pstr);
1375         }
1376         /* The only other valid case is a item ID list beginning at "My Computer" */
1377         else if (_ILIsMyComputer(pidl))
1378             pidl = ILGetNext(pidl);
1379
1380         if (SUCCEEDED(hr)) {
1381             LPSTR txt;
1382
1383             while(pidl && pidl->mkid.cb && pstr<end) {
1384                 if (_ILIsSpecialFolder(pidl))
1385                     {hr = E_INVALIDARG; break;}
1386
1387                 txt = _ILGetTextPointer(pidl);
1388                 if (!txt)
1389                     {hr = E_INVALIDARG; break;}
1390
1391                 if (!MultiByteToWideChar(CP_ACP, 0, txt, -1, pstr, uOutSize))
1392                     {hr = E_OUTOFMEMORY; break;}
1393
1394                 pidl = ILGetNext(pidl);
1395                 if (!pidl)
1396                     {hr = E_INVALIDARG; break;}
1397
1398                 if (!pidl->mkid.cb) {
1399                     /* We are at the end and successfully converted the complete PIDL. */
1400                     break;
1401                 }
1402
1403                 pstr = PathAddBackslashW(pstr);
1404                 if (!pstr)
1405                     {hr = E_INVALIDARG; break;}
1406             }
1407         } else
1408             hr = E_INVALIDARG;
1409
1410     TRACE_(shell)("-- %s, 0x%08lx\n", debugstr_w(pszPath), hr);
1411     return hr;
1412 }
1413
1414 /*************************************************************************
1415  * SHGetPathFromIDListW                         [SHELL32.@]
1416  */
1417 BOOL WINAPI SHGetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath)
1418 {
1419         HRESULT hr;
1420
1421         TRACE_(shell)("(pidl=%p,%p)\n", pidl, debugstr_w(pszPath));
1422         pdump(pidl);
1423
1424         if (!pidl)
1425             return FALSE;
1426
1427         hr = SHELL_GetPathFromIDListW(pidl, pszPath, MAX_PATH);
1428
1429         TRACE_(shell)("-- %s, 0x%08lx\n",debugstr_w(pszPath), hr);
1430         return SUCCEEDED(hr);
1431 }
1432
1433 /*************************************************************************
1434  * SHGetPathFromIDList          [SHELL32.@][NT 4.0: SHELL32.219]
1435  */
1436 BOOL WINAPI SHGetPathFromIDListAW(LPCITEMIDLIST pidl,LPVOID pszPath)
1437 {
1438         TRACE_(shell)("(pidl=%p,%p)\n",pidl,pszPath);
1439
1440         if (SHELL_OsIsUnicode())
1441           return SHGetPathFromIDListW(pidl,pszPath);
1442         return SHGetPathFromIDListA(pidl,pszPath);
1443 }
1444
1445 /*************************************************************************
1446  *      SHBindToParent          [shell version 5.0]
1447  */
1448 HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
1449 {
1450         IShellFolder    * psf;
1451         LPITEMIDLIST    pidlChild, pidlParent;
1452         HRESULT         hr=E_FAIL;
1453
1454         TRACE_(shell)("pidl=%p\n", pidl);
1455         pdump(pidl);
1456
1457         *ppv = NULL;
1458         if (ppidlLast) *ppidlLast = NULL;
1459
1460         if (_ILIsPidlSimple(pidl))
1461         {
1462           /* we are on desktop level */
1463           if (ppidlLast)
1464             *ppidlLast = ILClone(pidl);
1465           hr = SHGetDesktopFolder((IShellFolder**)ppv);
1466         }
1467         else
1468         {
1469           pidlChild =  ILClone(ILFindLastID(pidl));
1470           pidlParent = ILClone(pidl);
1471           ILRemoveLastID(pidlParent);
1472
1473           hr = SHGetDesktopFolder(&psf);
1474
1475           if (SUCCEEDED(hr))
1476             hr = IShellFolder_BindToObject(psf, pidlParent, NULL, riid, ppv);
1477
1478           if (SUCCEEDED(hr) && ppidlLast)
1479             *ppidlLast = pidlChild;
1480           else
1481             ILFree (pidlChild);
1482
1483           SHFree (pidlParent);
1484           if (psf) IShellFolder_Release(psf);
1485         }
1486
1487
1488         TRACE_(shell)("-- psf=%p pidl=%p ret=0x%08lx\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
1489         return hr;
1490 }
1491
1492 /**************************************************************************
1493  *
1494  *              internal functions
1495  *
1496  *      ### 1. section creating pidls ###
1497  *
1498  *************************************************************************
1499  *  _ILCreateDesktop()
1500  *  _ILCreateIExplore()
1501  *  _ILCreateMyComputer()
1502  *  _ILCreateDrive()
1503  *  _ILCreateFolder()
1504  *  _ILCreateValue()
1505  */
1506 LPITEMIDLIST _ILCreateDesktop()
1507 {       TRACE("()\n");
1508         return _ILCreate(PT_DESKTOP, NULL, 0);
1509 }
1510
1511 LPITEMIDLIST _ILCreateMyComputer()
1512 {       TRACE("()\n");
1513         return _ILCreate(PT_MYCOMP, &CLSID_MyComputer, sizeof(GUID));
1514 }
1515
1516 LPITEMIDLIST _ILCreateIExplore()
1517 {       TRACE("()\n");
1518         return _ILCreate(PT_MYCOMP, &CLSID_Internet, sizeof(GUID));
1519 }
1520
1521 LPITEMIDLIST _ILCreateControl()
1522 {       TRACE("()\n");
1523         return _ILCreate(PT_SPECIAL, &CLSID_ControlPanel, sizeof(GUID));
1524 }
1525
1526 LPITEMIDLIST _ILCreatePrinter()
1527 {       TRACE("()\n");
1528         return _ILCreate(PT_SPECIAL, &CLSID_Printers, sizeof(GUID));
1529 }
1530
1531 LPITEMIDLIST _ILCreateNetwork()
1532 {       TRACE("()\n");
1533         return _ILCreate(PT_MYCOMP, &CLSID_NetworkPlaces, sizeof(GUID));
1534 }
1535
1536 LPITEMIDLIST _ILCreateBitBucket()
1537 {       TRACE("()\n");
1538         return _ILCreate(PT_MYCOMP, &CLSID_RecycleBin, sizeof(GUID));
1539 }
1540
1541 LPITEMIDLIST _ILCreateDrive( LPCSTR lpszNew)
1542 {       char sTemp[4];
1543         lstrcpynA (sTemp,lpszNew,4);
1544         sTemp[2]='\\';
1545         sTemp[3]=0x00;
1546         TRACE("(%s)\n",sTemp);
1547         return _ILCreate(PT_DRIVE,(LPVOID)&sTemp[0],4);
1548 }
1549
1550 LPITEMIDLIST _ILCreateFolder( WIN32_FIND_DATAA * stffile )
1551 {
1552         char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1553         char *  pbuff = buff;
1554         ULONG   len, len1;
1555         LPITEMIDLIST pidl;
1556
1557         TRACE("(%s, %s)\n",stffile->cAlternateFileName, stffile->cFileName);
1558
1559         /* prepare buffer with both names */
1560         len = strlen (stffile->cFileName) + 1;
1561         memcpy (pbuff, stffile->cFileName, len);
1562         pbuff += len;
1563
1564         if (stffile->cAlternateFileName)
1565         {
1566           len1 = strlen (stffile->cAlternateFileName)+1;
1567           memcpy (pbuff, stffile->cAlternateFileName, len1);
1568         }
1569         else
1570         {
1571           len1 = 1;
1572           *pbuff = 0x00;
1573         }
1574
1575         pidl = _ILCreate(PT_FOLDER, (LPVOID)buff, len + len1);
1576
1577         /* set attributes */
1578         if (pidl)
1579         {
1580           LPPIDLDATA pData;
1581           pData = _ILGetDataPointer(pidl);
1582           FileTimeToDosDateTime(&(stffile->ftLastWriteTime),&pData->u.folder.uFileDate,&pData->u.folder.uFileTime);
1583           pData->u.folder.dwFileSize = stffile->nFileSizeLow;
1584           pData->u.folder.uFileAttribs = stffile->dwFileAttributes;
1585         }
1586
1587         return pidl;
1588 }
1589
1590 LPITEMIDLIST _ILCreateValue(WIN32_FIND_DATAA * stffile)
1591 {
1592         char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1593         char *  pbuff = buff;
1594         ULONG   len, len1;
1595         LPITEMIDLIST pidl;
1596
1597         TRACE("(%s, %s)\n",stffile->cAlternateFileName, stffile->cFileName);
1598
1599         /* prepare buffer with both names */
1600         len = strlen (stffile->cFileName) + 1;
1601         memcpy (pbuff, stffile->cFileName, len);
1602         pbuff += len;
1603
1604         if (stffile->cAlternateFileName)
1605         {
1606           len1 = strlen (stffile->cAlternateFileName)+1;
1607           memcpy (pbuff, stffile->cAlternateFileName, len1);
1608         }
1609         else
1610         {
1611           len1 = 1;
1612           *pbuff = 0x00;
1613         }
1614
1615         pidl = _ILCreate(PT_VALUE, (LPVOID)buff, len + len1);
1616
1617         /* set attributes */
1618         if (pidl)
1619         {
1620           LPPIDLDATA pData;
1621           pData = _ILGetDataPointer(pidl);
1622           FileTimeToDosDateTime(&(stffile->ftLastWriteTime),&pData->u.folder.uFileDate,&pData->u.folder.uFileTime);
1623           pData->u.folder.dwFileSize = stffile->nFileSizeLow;
1624           pData->u.folder.uFileAttribs=stffile->dwFileAttributes;
1625         }
1626
1627         return pidl;
1628 }
1629
1630 LPITEMIDLIST _ILCreateFromPathA(LPCSTR szPath)
1631 {
1632         HANDLE hFile;
1633         WIN32_FIND_DATAA stffile;
1634         LPITEMIDLIST pidl = NULL;
1635
1636         hFile = FindFirstFileA(szPath, &stffile);
1637         if (hFile != INVALID_HANDLE_VALUE)
1638         {
1639           if (stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1640             pidl = _ILCreateFolder(&stffile);
1641           else
1642             pidl = _ILCreateValue(&stffile);
1643           FindClose(hFile);
1644         }
1645         return pidl;
1646 }
1647
1648 LPITEMIDLIST _ILCreateSpecial(LPCSTR szGUID)
1649 {
1650         IID iid;
1651
1652         if (!SUCCEEDED(SHCLSIDFromStringA(szGUID, &iid)))
1653         {
1654           ERR("%s is not a GUID\n", szGUID);
1655           return NULL;
1656         }
1657         return _ILCreate(PT_MYCOMP, &iid, sizeof(IID));
1658 }
1659
1660 /**************************************************************************
1661  *  _ILCreate()
1662  *  Creates a new PIDL
1663  *  type = PT_DESKTOP | PT_DRIVE | PT_FOLDER | PT_VALUE
1664  *  pIn = data
1665  *  uInSize = size of data (raw)
1666  */
1667
1668 LPITEMIDLIST _ILCreate(PIDLTYPE type, LPCVOID pIn, UINT uInSize)
1669 {
1670         LPITEMIDLIST   pidlOut = NULL, pidlTemp = NULL;
1671         LPPIDLDATA     pData;
1672         UINT           uSize = 0;
1673         LPSTR   pszDest;
1674
1675         TRACE("(0x%02x %p %i)\n",type,pIn,uInSize);
1676
1677         switch (type)
1678         {
1679           case PT_DESKTOP:
1680             uSize = 0;
1681             break;
1682           case PT_SPECIAL:
1683           case PT_MYCOMP:
1684             uSize = 2 + 2 + sizeof(GUID);
1685             break;
1686           case PT_DRIVE:
1687             uSize = 2 + 23;
1688             break;
1689           case PT_FOLDER:
1690           case PT_VALUE:
1691             uSize = 2 + 12 + uInSize;
1692             break;
1693           default:
1694             FIXME("can't create type: 0x%08x\n",type);
1695             return NULL;
1696         }
1697
1698         if(!(pidlOut = SHAlloc(uSize + 2))) return NULL;
1699         ZeroMemory(pidlOut, uSize + 2);
1700         pidlOut->mkid.cb = uSize;
1701
1702         switch (type)
1703         {
1704           case PT_DESKTOP:
1705             TRACE("- create Desktop\n");
1706             break;
1707
1708           case PT_SPECIAL:
1709           case PT_MYCOMP:
1710             pData = _ILGetDataPointer(pidlOut);
1711             pData->type = type;
1712             memcpy(&(pData->u.mycomp.guid), pIn, uInSize);
1713             TRACE("-- create GUID-pidl %s\n", debugstr_guid(&(pData->u.mycomp.guid)));
1714             break;
1715
1716           case PT_DRIVE:
1717             pData = _ILGetDataPointer(pidlOut);
1718             pData->type = type;
1719             pszDest = _ILGetTextPointer(pidlOut);
1720             memcpy(pszDest, pIn, uInSize);
1721             TRACE("-- create Drive: %s\n",debugstr_a(pszDest));
1722             break;
1723
1724           case PT_FOLDER:
1725           case PT_VALUE:
1726             pData = _ILGetDataPointer(pidlOut);
1727             pData->type = type;
1728             pszDest =  _ILGetTextPointer(pidlOut);
1729             memcpy(pszDest, pIn, uInSize);
1730             TRACE("-- create Value: %s\n",debugstr_a(pszDest));
1731             break;
1732         }
1733
1734         pidlTemp = ILGetNext(pidlOut);
1735         if (pidlTemp)
1736           pidlTemp->mkid.cb = 0x00;
1737
1738         TRACE("-- (pidl=%p, size=%u)\n", pidlOut, uSize);
1739         return pidlOut;
1740 }
1741
1742 /**************************************************************************
1743  *  _ILGetDrive()
1744  *
1745  *  Gets the text for the drive eg. 'c:\'
1746  *
1747  * RETURNS
1748  *  strlen (lpszText)
1749  */
1750 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1751 {       TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1752
1753         if(_ILIsMyComputer(pidl))
1754           pidl = ILGetNext(pidl);
1755
1756         if (pidl && _ILIsDrive(pidl))
1757           return _ILSimpleGetText(pidl, pOut, uSize);
1758
1759         return 0;
1760 }
1761
1762 /**************************************************************************
1763  *
1764  *      ### 2. section testing pidls ###
1765  *
1766  **************************************************************************
1767  *  _ILIsDesktop()
1768  *  _ILIsMyComputer()
1769  *  _ILIsSpecialFolder()
1770  *  _ILIsDrive()
1771  *  _ILIsFolder()
1772  *  _ILIsValue()
1773  *  _ILIsPidlSimple()
1774  */
1775 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1776 {       TRACE("(%p)\n",pidl);
1777         return pidl && pidl->mkid.cb  ? 0 : 1;
1778 }
1779
1780 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1781 {
1782         REFIID iid = _ILGetGUIDPointer(pidl);
1783
1784         TRACE("(%p)\n",pidl);
1785
1786         if (iid)
1787           return IsEqualIID(iid, &CLSID_MyComputer);
1788         return FALSE;
1789 }
1790
1791 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1792 {
1793         LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1794         TRACE("(%p)\n",pidl);
1795         return (pidl && ( (lpPData && (PT_MYCOMP== lpPData->type || PT_SPECIAL== lpPData->type)) ||
1796                           (pidl && pidl->mkid.cb == 0x00)
1797                         ));
1798 }
1799
1800 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1801 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1802         TRACE("(%p)\n",pidl);
1803         return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1804                                     PT_DRIVE1 == lpPData->type ||
1805                                     PT_DRIVE2 == lpPData->type ||
1806                                     PT_DRIVE3 == lpPData->type));
1807 }
1808
1809 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1810 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1811         TRACE("(%p)\n",pidl);
1812         return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1813 }
1814
1815 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1816 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1817         TRACE("(%p)\n",pidl);
1818         return (pidl && lpPData && PT_VALUE == lpPData->type);
1819 }
1820
1821 /**************************************************************************
1822  *      _ILIsPidlSimple
1823  */
1824 BOOL _ILIsPidlSimple ( LPCITEMIDLIST pidl)
1825 {
1826         BOOL ret = TRUE;
1827
1828         if(! _ILIsDesktop(pidl))        /* pidl=NULL or mkid.cb=0 */
1829         {
1830           WORD len = pidl->mkid.cb;
1831           LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((LPBYTE)pidl) + len );
1832           if (pidlnext->mkid.cb)
1833             ret = FALSE;
1834         }
1835
1836         TRACE("%s\n", ret ? "Yes" : "No");
1837         return ret;
1838 }
1839
1840 /**************************************************************************
1841  *
1842  *      ### 3. section getting values from pidls ###
1843  */
1844
1845  /**************************************************************************
1846  *  _ILSimpleGetText
1847  *
1848  * gets the text for the first item in the pidl (eg. simple pidl)
1849  *
1850  * returns the length of the string
1851  */
1852 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
1853 {
1854         DWORD           dwReturn=0;
1855         LPSTR           szSrc;
1856         GUID const *    riid;
1857         char szTemp[MAX_PATH];
1858
1859         TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1860
1861         if (!pidl) return 0;
1862
1863         if (szOut)
1864           *szOut = 0;
1865
1866         if (_ILIsDesktop(pidl))
1867         {
1868          /* desktop */
1869           if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1870           {
1871             if (szOut)
1872               lstrcpynA(szOut, szTemp, uOutSize);
1873
1874             dwReturn = strlen (szTemp);
1875           }
1876         }
1877         else if (( szSrc = _ILGetTextPointer(pidl) ))
1878         {
1879           /* filesystem */
1880           if (szOut)
1881             lstrcpynA(szOut, szSrc, uOutSize);
1882
1883           dwReturn = strlen(szSrc);
1884         }
1885         else if (( riid = _ILGetGUIDPointer(pidl) ))
1886         {
1887           /* special folder */
1888           if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
1889           {
1890             if (szOut)
1891               lstrcpynA(szOut, szTemp, uOutSize);
1892
1893             dwReturn = strlen (szTemp);
1894           }
1895         }
1896         else
1897         {
1898           ERR("-- no text\n");
1899         }
1900
1901         TRACE("-- (%p=%s 0x%08lx)\n",szOut,debugstr_a(szOut),dwReturn);
1902         return dwReturn;
1903 }
1904
1905  /**************************************************************************
1906  *  _ILSimpleGetTextW
1907  *
1908  * gets the text for the first item in the pidl (eg. simple pidl)
1909  *
1910  * returns the length of the string
1911  */
1912 DWORD _ILSimpleGetTextW (LPCITEMIDLIST pidl, LPWSTR szOut, UINT uOutSize)
1913 {
1914         DWORD   dwReturn;
1915         char    szTemp[MAX_PATH];
1916
1917         TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1918
1919         dwReturn = _ILSimpleGetText(pidl, szTemp, uOutSize);
1920
1921         if (!MultiByteToWideChar(CP_ACP, 0, szTemp, -1, szOut, MAX_PATH))
1922                 *szOut = 0;
1923
1924         TRACE("-- (%p=%s 0x%08lx)\n",szOut,debugstr_w(szOut),dwReturn);
1925         return dwReturn;
1926 }
1927
1928 /**************************************************************************
1929  *
1930  *      ### 4. getting pointers to parts of pidls ###
1931  *
1932  **************************************************************************
1933  *  _ILGetDataPointer()
1934  */
1935 LPPIDLDATA _ILGetDataPointer(LPCITEMIDLIST pidl)
1936 {
1937         if(pidl && pidl->mkid.cb != 0x00)
1938           return (LPPIDLDATA) &(pidl->mkid.abID);
1939         return NULL;
1940 }
1941
1942 /**************************************************************************
1943  *  _ILGetTextPointer()
1944  * gets a pointer to the long filename string stored in the pidl
1945  */
1946 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
1947 {/*     TRACE(pidl,"(pidl%p)\n", pidl);*/
1948
1949         LPPIDLDATA pdata = _ILGetDataPointer(pidl);
1950
1951         if (pdata)
1952         {
1953           switch (pdata->type)
1954           {
1955             case PT_MYCOMP:
1956             case PT_SPECIAL:
1957               return NULL;
1958
1959             case PT_DRIVE:
1960             case PT_DRIVE1:
1961             case PT_DRIVE2:
1962             case PT_DRIVE3:
1963               return (LPSTR)&(pdata->u.drive.szDriveName);
1964
1965             case PT_FOLDER:
1966             case PT_FOLDER1:
1967             case PT_VALUE:
1968             case PT_IESPECIAL1:
1969             case PT_RAS_FOLDER:
1970             case PT_IESPECIAL2:
1971               return (LPSTR)&(pdata->u.file.szNames);
1972
1973             case PT_WORKGRP:
1974             case PT_COMP:
1975             case PT_NETWORK:
1976             case PT_NETPROVIDER:
1977             case PT_SHARE:
1978               return (LPSTR)&(pdata->u.network.szNames);
1979           }
1980         }
1981         return NULL;
1982 }
1983
1984 /**************************************************************************
1985  *  _ILGetSTextPointer()
1986  * gets a pointer to the short filename string stored in the pidl
1987  */
1988 LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
1989 {/*     TRACE(pidl,"(pidl%p)\n", pidl);*/
1990
1991         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1992
1993         if (pdata)
1994         {
1995           switch (pdata->type)
1996           {
1997             case PT_FOLDER:
1998             case PT_VALUE:
1999             case PT_IESPECIAL1:
2000             case PT_RAS_FOLDER:
2001             case PT_IESPECIAL2:
2002               return (LPSTR)(pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1);
2003
2004             case PT_WORKGRP:
2005               return (LPSTR)(pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1);
2006           }
2007         }
2008         return NULL;
2009 }
2010
2011 /**************************************************************************
2012  * _ILGetGUIDPointer()
2013  *
2014  * returns reference to guid stored in some pidls
2015  */
2016 REFIID _ILGetGUIDPointer(LPCITEMIDLIST pidl)
2017 {
2018         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2019
2020         TRACE("%p\n", pidl);
2021
2022         if (pdata)
2023         {
2024           TRACE("pdata->type 0x%04x\n", pdata->type);
2025           switch (pdata->type)
2026           {
2027             case PT_SPECIAL:
2028             case PT_MYCOMP:
2029               return (REFIID) &(pdata->u.mycomp.guid);
2030
2031             default:
2032                 TRACE("Unknown pidl type 0x%04x\n", pdata->type);
2033                 break;
2034           }
2035         }
2036         return NULL;
2037 }
2038
2039 /*************************************************************************
2040  * _ILGetFileDateTime
2041  *
2042  * Given the ItemIdList, get the FileTime
2043  *
2044  * PARAMS
2045  *      pidl        [I] The ItemIDList
2046  *      pFt         [I] the resulted FILETIME of the file
2047  *
2048  * RETURNS
2049  *     True if Successful
2050  *
2051  * NOTES
2052  *
2053  */
2054 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
2055 {
2056     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2057
2058     if(! pdata) return FALSE;
2059
2060     switch (pdata->type)
2061     {
2062         case PT_FOLDER:
2063             DosDateTimeToFileTime(pdata->u.folder.uFileDate, pdata->u.folder.uFileTime, pFt);
2064             break;
2065         case PT_VALUE:
2066             DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
2067             break;
2068         default:
2069             return FALSE;
2070     }
2071     return TRUE;
2072 }
2073
2074 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2075 {
2076         FILETIME ft,lft;
2077         SYSTEMTIME time;
2078         BOOL ret;
2079
2080         if (_ILGetFileDateTime( pidl, &ft )) {
2081             FileTimeToLocalFileTime(&ft, &lft);
2082             FileTimeToSystemTime (&lft, &time);
2083             ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
2084         } else {
2085             pOut[0] = '\0';
2086             ret = FALSE;
2087         }
2088         return ret;
2089
2090 }
2091
2092 /*************************************************************************
2093  * _ILGetFileSize
2094  *
2095  * Given the ItemIdList, get the FileSize
2096  *
2097  * PARAMS
2098  *      pidl    [I] The ItemIDList
2099  *      pOut    [I] The buffer to save the result
2100  *      uOutsize [I] The size of the buffer
2101  *
2102  * RETURNS
2103  *     The FileSize
2104  *
2105  * NOTES
2106  *      pOut can be null when no string is needed
2107  *
2108  */
2109 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2110 {
2111         LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2112         DWORD dwSize;
2113
2114         if(! pdata) return 0;
2115
2116         switch (pdata->type)
2117         {
2118           case PT_VALUE:
2119             dwSize = pdata->u.file.dwFileSize;
2120             if (pOut) StrFormatByteSizeA(dwSize, pOut, uOutSize);
2121             return dwSize;
2122         }
2123         if (pOut) *pOut = 0x00;
2124         return 0;
2125 }
2126
2127 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2128 {
2129         char szTemp[MAX_PATH];
2130         const char * pPoint;
2131         LPCITEMIDLIST  pidlTemp=pidl;
2132
2133         TRACE("pidl=%p\n",pidl);
2134
2135         if (!pidl) return FALSE;
2136
2137         pidlTemp = ILFindLastID(pidl);
2138
2139         if (!_ILIsValue(pidlTemp)) return FALSE;
2140         if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH)) return FALSE;
2141
2142         pPoint = PathFindExtensionA(szTemp);
2143
2144         if (! *pPoint) return FALSE;
2145
2146         pPoint++;
2147         lstrcpynA(pOut, pPoint, uOutSize);
2148         TRACE("%s\n",pOut);
2149
2150         return TRUE;
2151 }
2152
2153 /*************************************************************************
2154  * _ILGetFileType
2155  *
2156  * Given the ItemIdList, get the file type description
2157  *
2158  * PARAMS
2159  *      pidl        [I] The ItemIDList (simple)
2160  *      pOut        [I] The buffer to save the result
2161  *      uOutsize    [I] The size of the buffer
2162  *
2163  * RETURNS
2164  *      nothing
2165  *
2166  * NOTES
2167  *      This function copies as much as possible into the buffer.
2168  */
2169 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2170 {
2171         if(_ILIsValue(pidl))
2172         {
2173           char sTemp[64];
2174           if(uOutSize > 0)
2175           {
2176             pOut[0] = 0;
2177           }
2178           if (_ILGetExtension (pidl, sTemp, 64))
2179           {
2180             if (!( HCR_MapTypeToValueA(sTemp, sTemp, 64, TRUE)
2181                 && HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE )))
2182             {
2183               lstrcpynA (pOut, sTemp, uOutSize - 6);
2184               strcat (pOut, "-file");
2185             }
2186           }
2187         }
2188         else
2189         {
2190           lstrcpynA(pOut, "Folder", uOutSize);
2191         }
2192 }
2193
2194 /*************************************************************************
2195  * _ILGetFileAttributes
2196  *
2197  * Given the ItemIdList, get the Attrib string format
2198  *
2199  * PARAMS
2200  *      pidl        [I] The ItemIDList
2201  *      pOut        [I] The buffer to save the result
2202  *      uOutsize    [I] The size of the Buffer
2203  *
2204  * RETURNS
2205  *     Attributes
2206  *
2207  * FIXME
2208  *  return value 0 in case of error is a valid return value
2209  *
2210  */
2211 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2212 {
2213         LPPIDLDATA pData = _ILGetDataPointer(pidl);
2214         WORD wAttrib = 0;
2215         int i;
2216
2217         if(! pData) return 0;
2218
2219         switch(pData->type)
2220         {
2221           case PT_FOLDER:
2222             wAttrib = pData->u.folder.uFileAttribs;
2223             break;
2224           case PT_VALUE:
2225             wAttrib = pData->u.file.uFileAttribs;
2226             break;
2227         }
2228
2229         if(uOutSize >= 6)
2230         {
2231           i=0;
2232           if(wAttrib & FILE_ATTRIBUTE_READONLY)
2233           {
2234             pOut[i++] = 'R';
2235           }
2236           if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
2237           {
2238             pOut[i++] = 'H';
2239           }
2240           if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
2241           {
2242             pOut[i++] = 'S';
2243           }
2244           if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
2245           {
2246             pOut[i++] = 'A';
2247           }
2248           if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
2249           {
2250             pOut[i++] = 'C';
2251           }
2252           pOut[i] = 0x00;
2253         }
2254         return wAttrib;
2255 }
2256
2257 /*************************************************************************
2258 * ILFreeaPidl
2259 *
2260 * free a aPidl struct
2261 */
2262 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
2263 {
2264         UINT   i;
2265
2266         if (apidl)
2267         {
2268           for (i = 0; i < cidl; i++) SHFree(apidl[i]);
2269           SHFree(apidl);
2270         }
2271 }
2272
2273 /*************************************************************************
2274 * ILCopyaPidl
2275 *
2276 * copies an aPidl struct
2277 */
2278 LPITEMIDLIST* _ILCopyaPidl(LPCITEMIDLIST * apidlsrc, UINT cidl)
2279 {
2280         UINT i;
2281         LPITEMIDLIST * apidldest = (LPITEMIDLIST*)SHAlloc(cidl * sizeof(LPITEMIDLIST));
2282         if(!apidlsrc) return NULL;
2283
2284         for (i = 0; i < cidl; i++)
2285           apidldest[i] = ILClone(apidlsrc[i]);
2286
2287         return apidldest;
2288 }
2289
2290 /*************************************************************************
2291 * _ILCopyCidaToaPidl
2292 *
2293 * creates aPidl from CIDA
2294 */
2295 LPITEMIDLIST* _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, LPIDA cida)
2296 {
2297         UINT i;
2298         LPITEMIDLIST * dst = (LPITEMIDLIST*)SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
2299
2300         if(!dst) return NULL;
2301
2302         if (pidl)
2303           *pidl = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[0]]));
2304
2305         for (i = 0; i < cida->cidl; i++)
2306           dst[i] = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[i + 1]]));
2307
2308         return dst;
2309 }