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 <stdlib.h>
  30 #include <string.h>
  31 #include "winbase.h"
  32 #include "winreg.h"
  33 #include "shlguid.h"
  34 #include "winerror.h"
  35 #include "winnls.h"
  36 #include "undocshell.h"
  37 #include "shell32_main.h"
  38 #include "shellapi.h"
  39 #include "shlwapi.h"
  40
  41 #include "pidl.h"
  42 #include "debughlp.h"
  43 #include "wine/debug.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(pidl);
  46 WINE_DECLARE_DEBUG_CHANNEL(shell);
  47
  48 /* from comctl32.dll */
  49 extern LPVOID WINAPI Alloc(INT);
  50 extern BOOL WINAPI Free(LPVOID);
  51
  52 /*************************************************************************
  53  * ILGetDisplayName                     [SHELL32.15]
  54  */
  55 BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl,LPSTR path)
  56 {
  57         TRACE_(shell)("pidl=%p %p semi-stub\n",pidl,path);
  58         return SHGetPathFromIDListA(pidl, path);
  59 }
  60 /*************************************************************************
  61  * ILFindLastID [SHELL32.16]
  62  *
  63  * NOTES
  64  *   observed: pidl=Desktop return=pidl
  65  */
  66 LPITEMIDLIST WINAPI ILFindLastID(LPITEMIDLIST pidl)
  67 {       LPITEMIDLIST   pidlLast = pidl;
  68
  69         TRACE("(pidl=%p)\n",pidl);
  70
  71         while (pidl->mkid.cb)
  72         {
  73           pidlLast = pidl;
  74           pidl = ILGetNext(pidl);
  75         }
  76         return pidlLast;
  77 }
  78 /*************************************************************************
  79  * ILRemoveLastID [SHELL32.17]
  80  *
  81  * NOTES
  82  *   when pidl=Desktop return=FALSE
  83  */
  84 BOOL WINAPI ILRemoveLastID(LPCITEMIDLIST pidl)
  85 {
  86         TRACE_(shell)("pidl=%p\n",pidl);
  87
  88         if (!pidl || !pidl->mkid.cb)
  89           return 0;
  90         ILFindLastID(pidl)->mkid.cb = 0;
  91         return 1;
  92 }
  93
  94 /*************************************************************************
  95  * ILClone [SHELL32.18]
  96  *
  97  * NOTES
  98  *    duplicate an idlist
  99  */
 100 LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
 101 { DWORD    len;
 102   LPITEMIDLIST  newpidl;
 103
 104   if (!pidl)
 105     return NULL;
 106
 107   len = ILGetSize(pidl);
 108   newpidl = (LPITEMIDLIST)SHAlloc(len);
 109   if (newpidl)
 110     memcpy(newpidl,pidl,len);
 111
 112   TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 113   pdump(pidl);
 114
 115   return newpidl;
 116 }
 117 /*************************************************************************
 118  * ILCloneFirst [SHELL32.19]
 119  *
 120  * NOTES
 121  *  duplicates the first idlist of a complex pidl
 122  */
 123 LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
 124 {       DWORD len;
 125         LPITEMIDLIST pidlNew = NULL;
 126
 127         TRACE("pidl=%p \n",pidl);
 128         pdump(pidl);
 129
 130         if (pidl)
 131         {
 132           len = pidl->mkid.cb;
 133           pidlNew = (LPITEMIDLIST) SHAlloc (len+2);
 134           if (pidlNew)
 135           {
 136             memcpy(pidlNew,pidl,len+2);         /* 2 -> mind a desktop pidl */
 137
 138             if (len)
 139               ILGetNext(pidlNew)->mkid.cb = 0x00;
 140           }
 141         }
 142         TRACE("-- newpidl=%p\n",pidlNew);
 143
 144         return pidlNew;
 145 }
 146
 147 /*************************************************************************
 148  * ILLoadFromStream (SHELL32.26)
 149  *
 150  * NOTES
 151  *   the first two bytes are the len, the pidl is following then
 152  */
 153 HRESULT WINAPI ILLoadFromStream (IStream * pStream, LPITEMIDLIST * ppPidl)
 154 {       WORD            wLen = 0;
 155         DWORD           dwBytesRead;
 156         HRESULT         ret = E_FAIL;
 157
 158
 159         TRACE_(shell)("%p %p\n", pStream ,  ppPidl);
 160
 161         if (*ppPidl)
 162         { SHFree(*ppPidl);
 163           *ppPidl = NULL;
 164         }
 165
 166         IStream_AddRef (pStream);
 167
 168         if (SUCCEEDED(IStream_Read(pStream, (LPVOID)&wLen, 2, &dwBytesRead)))
 169         { *ppPidl = SHAlloc (wLen);
 170           if (SUCCEEDED(IStream_Read(pStream, *ppPidl , wLen, &dwBytesRead)))
 171           { ret = S_OK;
 172           }
 173           else
 174           { SHFree(*ppPidl);
 175             *ppPidl = NULL;
 176           }
 177         }
 178
 179         /* we are not yet fully compatible */
 180         if (!pcheck(*ppPidl))
 181         { SHFree(*ppPidl);
 182           *ppPidl = NULL;
 183         }
 184
 185
 186         IStream_Release (pStream);
 187
 188         return ret;
 189 }
 190
 191 /*************************************************************************
 192  * ILSaveToStream (SHELL32.27)
 193  *
 194  * NOTES
 195  *   the first two bytes are the len, the pidl is following then
 196  */
 197 HRESULT WINAPI ILSaveToStream (IStream * pStream, LPCITEMIDLIST pPidl)
 198 {
 199         LPITEMIDLIST    pidl;
 200         WORD            wLen = 0;
 201         HRESULT         ret = E_FAIL;
 202
 203         TRACE_(shell)("%p %p\n", pStream, pPidl);
 204
 205         IStream_AddRef (pStream);
 206
 207         pidl = pPidl;
 208         while (pidl->mkid.cb)
 209         {
 210           wLen += sizeof(WORD) + pidl->mkid.cb;
 211           pidl = ILGetNext(pidl);
 212         }
 213
 214         if (SUCCEEDED(IStream_Write(pStream, (LPVOID)&wLen, 2, NULL)))
 215         {
 216           if (SUCCEEDED(IStream_Write(pStream, pPidl, wLen, NULL)))
 217           { ret = S_OK;
 218           }
 219         }
 220
 221
 222         IStream_Release (pStream);
 223
 224         return ret;
 225 }
 226
 227 HRESULT WINAPI SHILCreateFromPathA (LPCSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 228 {       LPSHELLFOLDER sf;
 229         WCHAR lpszDisplayName[MAX_PATH];
 230         DWORD pchEaten;
 231         HRESULT ret = E_FAIL;
 232
 233         TRACE_(shell)("%s %p 0x%08lx\n",path,ppidl,attributes?*attributes:0);
 234
 235         if (!MultiByteToWideChar( CP_ACP, 0, path, -1, lpszDisplayName, MAX_PATH ))
 236             lpszDisplayName[MAX_PATH-1] = 0;
 237
 238         if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 239         {
 240           ret = IShellFolder_ParseDisplayName(sf,0, NULL,lpszDisplayName,&pchEaten,ppidl,attributes);
 241           IShellFolder_Release(sf);
 242         }
 243         return ret;
 244 }
 245
 246 HRESULT WINAPI SHILCreateFromPathW (LPCWSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 247 {       LPSHELLFOLDER sf;
 248         DWORD pchEaten;
 249         HRESULT ret = E_FAIL;
 250
 251         TRACE_(shell)("%s %p 0x%08lx\n",debugstr_w(path),ppidl,attributes?*attributes:0);
 252
 253         if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 254         {
 255           ret = IShellFolder_ParseDisplayName(sf,0, NULL, (LPWSTR) path, &pchEaten, ppidl, attributes);
 256           IShellFolder_Release(sf);
 257         }
 258         return ret;
 259 }
 260
 261 /*************************************************************************
 262  * SHILCreateFromPath   [SHELL32.28]
 263  *
 264  * NOTES
 265  *   Wrapper for IShellFolder_ParseDisplayName().
 266  */
 267 HRESULT WINAPI SHILCreateFromPathAW (LPCVOID path, LPITEMIDLIST * ppidl, DWORD * attributes)
 268 {
 269         if ( SHELL_OsIsUnicode())
 270           return SHILCreateFromPathW (path, ppidl, attributes);
 271         return SHILCreateFromPathA (path, ppidl, attributes);
 272 }
 273
 274 /*************************************************************************
 275  * SHCloneSpecialIDList [SHELL32.89]
 276  *
 277  * PARAMETERS
 278  *  hwndOwner   [in]
 279  *  nFolder     [in]    CSIDL_xxxxx ??
 280  *
 281  * RETURNS
 282  *  pidl ??
 283  * NOTES
 284  *     exported by ordinal
 285  */
 286 LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner,DWORD nFolder,DWORD x3)
 287 {       LPITEMIDLIST ppidl;
 288         WARN_(shell)("(hwnd=%p,csidl=0x%lx,0x%lx):semi-stub.\n",
 289                                          hwndOwner,nFolder,x3);
 290
 291         SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
 292
 293         return ppidl;
 294 }
 295
 296 /*************************************************************************
 297  * ILGlobalClone [SHELL32.20]
 298  *
 299  */
 300 LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
 301 {       DWORD    len;
 302         LPITEMIDLIST  newpidl;
 303
 304         if (!pidl)
 305           return NULL;
 306
 307         len = ILGetSize(pidl);
 308         newpidl = (LPITEMIDLIST)Alloc(len);
 309         if (newpidl)
 310           memcpy(newpidl,pidl,len);
 311
 312         TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 313         pdump(pidl);
 314
 315         return newpidl;
 316 }
 317
 318 /*************************************************************************
 319  * ILIsEqual [SHELL32.21]
 320  *
 321  */
 322 BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 323 {
 324         char    szData1[MAX_PATH];
 325         char    szData2[MAX_PATH];
 326
 327         LPITEMIDLIST pidltemp1 = pidl1;
 328         LPITEMIDLIST pidltemp2 = pidl2;
 329
 330         TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 331
 332         /* explorer reads from registry directly (StreamMRU),
 333            so we can only check here */
 334         if ((!pcheck (pidl1)) || (!pcheck (pidl2))) return FALSE;
 335
 336         pdump (pidl1);
 337         pdump (pidl2);
 338
 339         if ( (!pidl1) || (!pidl2) ) return FALSE;
 340
 341         while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 342         {
 343             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 344             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 345
 346             if (strcasecmp ( szData1, szData2 )!=0 )
 347               return FALSE;
 348
 349             pidltemp1 = ILGetNext(pidltemp1);
 350             pidltemp2 = ILGetNext(pidltemp2);
 351         }
 352
 353         if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
 354         {
 355           return TRUE;
 356         }
 357
 358         return FALSE;
 359 }
 360 /*************************************************************************
 361  * ILIsParent [SHELL32.23]
 362  *
 363  * parent=a/b   child=a/b/c -> true, c is in folder a/b
 364  *              child=a/b/c/d -> false if bImmediate is true, d is not in folder a/b
 365  *              child=a/b/c/d -> true if bImmediate is false, d is in a subfolder of a/b
 366  */
 367 BOOL WINAPI ILIsParent( LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
 368 {
 369         char    szData1[MAX_PATH];
 370         char    szData2[MAX_PATH];
 371
 372         LPITEMIDLIST pParent = pidlParent;
 373         LPITEMIDLIST pChild = pidlChild;
 374
 375         TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
 376
 377         while (pParent->mkid.cb && pChild->mkid.cb)
 378         {
 379           _ILSimpleGetText(pParent, szData1, MAX_PATH);
 380           _ILSimpleGetText(pChild, szData2, MAX_PATH);
 381
 382           if (strcasecmp ( szData1, szData2 )!=0 )
 383             return FALSE;
 384
 385           pParent = ILGetNext(pParent);
 386           pChild = ILGetNext(pChild);
 387         }
 388
 389         if ( pParent->mkid.cb || ! pChild->mkid.cb)     /* child shorter or has equal length to parent */
 390           return FALSE;
 391
 392         if ( ILGetNext(pChild)->mkid.cb && bImmediate)  /* not immediate descent */
 393           return FALSE;
 394
 395         return TRUE;
 396 }
 397
 398 /*************************************************************************
 399  * ILFindChild [SHELL32.24]
 400  *
 401  * NOTES
 402  *  Compares elements from pidl1 and pidl2.
 403  *
 404  *  pidl1 is desktop            pidl2
 405  *  pidl1 shorter pidl2         pointer to first different element of pidl2
 406  *                              if there was at least one equal element
 407  *  pidl2 shorter pidl1         0
 408  *  pidl2 equal pidl1           pointer to last 0x00-element of pidl2
 409  */
 410 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1,LPCITEMIDLIST pidl2)
 411 {
 412         char    szData1[MAX_PATH];
 413         char    szData2[MAX_PATH];
 414
 415         LPITEMIDLIST pidltemp1 = pidl1;
 416         LPITEMIDLIST pidltemp2 = pidl2;
 417         LPITEMIDLIST ret=NULL;
 418
 419         TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 420
 421         /* explorer reads from registry directly (StreamMRU),
 422            so we can only check here */
 423         if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
 424           return FALSE;
 425
 426         pdump (pidl1);
 427         pdump (pidl2);
 428
 429         if ( _ILIsDesktop(pidl1) )
 430         {
 431           ret = pidl2;
 432         }
 433         else
 434         {
 435           while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 436           {
 437             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 438             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 439
 440             if (strcasecmp(szData1,szData2))
 441               break;
 442
 443             pidltemp1 = ILGetNext(pidltemp1);
 444             pidltemp2 = ILGetNext(pidltemp2);
 445             ret = pidltemp2;
 446           }
 447
 448           if (pidltemp1->mkid.cb)
 449           {
 450             ret = NULL; /* elements of pidl1 left*/
 451           }
 452         }
 453         TRACE_(shell)("--- %p\n", ret);
 454         return ret; /* pidl 1 is shorter */
 455 }
 456
 457 /*************************************************************************
 458  * ILCombine [SHELL32.25]
 459  *
 460  * NOTES
 461  *  Concatenates two complex idlists.
 462  *  The pidl is the first one, pidlsub the next one
 463  *  Does not destroy the passed in idlists!
 464  */
 465 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1,LPCITEMIDLIST pidl2)
 466 {
 467         DWORD    len1,len2;
 468         LPITEMIDLIST  pidlNew;
 469
 470         TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
 471
 472         if(!pidl1 && !pidl2) return NULL;
 473
 474         pdump (pidl1);
 475         pdump (pidl2);
 476
 477         if(!pidl1)
 478         {
 479           pidlNew = ILClone(pidl2);
 480           return pidlNew;
 481         }
 482
 483         if(!pidl2)
 484         {
 485           pidlNew = ILClone(pidl1);
 486           return pidlNew;
 487         }
 488
 489         len1  = ILGetSize(pidl1)-2;
 490         len2  = ILGetSize(pidl2);
 491         pidlNew  = SHAlloc(len1+len2);
 492
 493         if (pidlNew)
 494         {
 495           memcpy(pidlNew,pidl1,len1);
 496           memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 497         }
 498
 499         /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 500         return pidlNew;
 501 }
 502 /*************************************************************************
 503  *  SHGetRealIDL [SHELL32.98]
 504  *
 505  * NOTES
 506  */
 507 LPITEMIDLIST WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPITEMIDLIST pidl, DWORD z)
 508 {
 509         FIXME("sf=%p pidl=%p 0x%04lx\n",lpsf,pidl,z);
 510
 511         pdump (pidl);
 512         return 0;
 513 }
 514
 515 /*************************************************************************
 516  *  SHLogILFromFSIL [SHELL32.95]
 517  *
 518  * NOTES
 519  *  pild = CSIDL_DESKTOP        ret = 0
 520  *  pild = CSIDL_DRIVES         ret = 0
 521  */
 522 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 523 {
 524         FIXME("(pidl=%p)\n",pidl);
 525
 526         pdump(pidl);
 527
 528         return 0;
 529 }
 530
 531 /*************************************************************************
 532  * ILGetSize [SHELL32.152]
 533  *  gets the byte size of an idlist including zero terminator (pidl)
 534  *
 535  * PARAMETERS
 536  *  pidl ITEMIDLIST
 537  *
 538  * RETURNS
 539  *  size of pidl
 540  *
 541  * NOTES
 542  *  exported by ordinal
 543  */
 544 DWORD WINAPI ILGetSize(LPITEMIDLIST pidl)
 545 {
 546         LPSHITEMID si = &(pidl->mkid);
 547         DWORD  len=0;
 548
 549         if (pidl)
 550         { while (si->cb)
 551           { len += si->cb;
 552             si  = (LPSHITEMID)(((LPBYTE)si)+si->cb);
 553           }
 554           len += 2;
 555         }
 556         TRACE("pidl=%p size=%lu\n",pidl, len);
 557         return len;
 558 }
 559
 560 /*************************************************************************
 561  * ILGetNext [SHELL32.153]
 562  *  gets the next simple pidl of a complex pidl
 563  *
 564  * observed return values:
 565  *  null -> null
 566  *  desktop -> null
 567  *  simple pidl -> pointer to 0x0000 element
 568  *
 569  */
 570 LPITEMIDLIST WINAPI ILGetNext(LPITEMIDLIST pidl)
 571 {
 572         WORD len;
 573
 574         TRACE("%p\n", pidl);
 575
 576         if(pidl)
 577         {
 578           len =  pidl->mkid.cb;
 579           if (len)
 580           {
 581             pidl = (LPITEMIDLIST) (((LPBYTE)pidl)+len);
 582             TRACE("-- %p\n", pidl);
 583             return pidl;
 584           }
 585         }
 586         return NULL;
 587 }
 588 /*************************************************************************
 589  * ILAppend [SHELL32.154]
 590  *
 591  * NOTES
 592  *  Adds the single item to the idlist indicated by pidl.
 593  *  if bEnd is 0, adds the item to the front of the list,
 594  *  otherwise adds the item to the end. (???)
 595  *  Destroys the passed in idlist! (???)
 596  */
 597 LPITEMIDLIST WINAPI ILAppend(LPITEMIDLIST pidl,LPCITEMIDLIST item,BOOL bEnd)
 598 {
 599         LPITEMIDLIST idlRet;
 600
 601         WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 602
 603         pdump (pidl);
 604         pdump (item);
 605
 606         if (_ILIsDesktop(pidl))
 607         {
 608            idlRet = ILClone(item);
 609            if (pidl)
 610              SHFree (pidl);
 611            return idlRet;
 612         }
 613
 614         if (bEnd)
 615         {
 616           idlRet=ILCombine(pidl,item);
 617         }
 618         else
 619         {
 620           idlRet=ILCombine(item,pidl);
 621         }
 622
 623         SHFree(pidl);
 624         return idlRet;
 625 }
 626 /*************************************************************************
 627  * ILFree [SHELL32.155]
 628  *
 629  * NOTES
 630  *     free_check_ptr - frees memory (if not NULL)
 631  *     allocated by SHMalloc allocator
 632  *     exported by ordinal
 633  */
 634 DWORD WINAPI ILFree(LPITEMIDLIST pidl)
 635 {
 636         TRACE("(pidl=0x%08lx)\n",(DWORD)pidl);
 637
 638         if(!pidl) return FALSE;
 639         SHFree(pidl);
 640         return TRUE;
 641 }
 642 /*************************************************************************
 643  * ILGlobalFree [SHELL32.156]
 644  *
 645  */
 646 void WINAPI ILGlobalFree( LPCITEMIDLIST pidl)
 647 {
 648         TRACE("%p\n",pidl);
 649
 650         if(!pidl) return;
 651         Free(pidl);
 652 }
 653 /*************************************************************************
 654  * ILCreateFromPath [SHELL32.157]
 655  *
 656  */
 657 LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
 658 {
 659         LPITEMIDLIST pidlnew;
 660         DWORD attributes = 0;
 661
 662         TRACE_(shell)("%s\n",path);
 663
 664         if (SUCCEEDED (SHILCreateFromPathA (path, &pidlnew, &attributes)))
 665           return pidlnew;
 666         return FALSE;
 667 }
 668 LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
 669 {
 670         LPITEMIDLIST pidlnew;
 671         DWORD attributes = 0;
 672
 673         TRACE_(shell)("%s\n",debugstr_w(path));
 674
 675         if (SUCCEEDED (SHILCreateFromPathW (path, &pidlnew, &attributes)))
 676           return pidlnew;
 677         return FALSE;
 678 }
 679 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
 680 {
 681         if ( SHELL_OsIsUnicode())
 682           return ILCreateFromPathW (path);
 683         return ILCreateFromPathA (path);
 684 }
 685 /*************************************************************************
 686  *  SHSimpleIDListFromPath [SHELL32.162]
 687  */
 688 LPITEMIDLIST WINAPI SHSimpleIDListFromPathA (LPCSTR lpszPath)
 689 {
 690         LPITEMIDLIST    pidl=NULL;
 691         HANDLE  hFile;
 692         WIN32_FIND_DATAA        stffile;
 693
 694         TRACE("path=%s\n", lpszPath);
 695
 696         if (!lpszPath) return NULL;
 697
 698         hFile = FindFirstFileA(lpszPath, &stffile);
 699
 700         if ( hFile != INVALID_HANDLE_VALUE )
 701         {
 702           if (stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
 703           {
 704             pidl = _ILCreateFolder (&stffile);
 705           }
 706           else
 707           {
 708             pidl = _ILCreateValue (&stffile);
 709           }
 710           FindClose (hFile);
 711         }
 712         return pidl;
 713 }
 714 LPITEMIDLIST WINAPI SHSimpleIDListFromPathW (LPCWSTR lpszPath)
 715 {
 716         char    lpszTemp[MAX_PATH];
 717         TRACE("path=%s\n",debugstr_w(lpszPath));
 718
 719         if (!WideCharToMultiByte( CP_ACP, 0, lpszPath, -1, lpszTemp, sizeof(lpszTemp), NULL, NULL ))
 720             lpszTemp[sizeof(lpszTemp)-1] = 0;
 721
 722         return SHSimpleIDListFromPathA (lpszTemp);
 723 }
 724
 725 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW (LPCVOID lpszPath)
 726 {
 727         if ( SHELL_OsIsUnicode())
 728           return SHSimpleIDListFromPathW (lpszPath);
 729         return SHSimpleIDListFromPathA (lpszPath);
 730 }
 731
 732 /*************************************************************************
 733  * SHGetSpecialFolderLocation           [SHELL32.@]
 734  *
 735  * gets the folder locations from the registry and creates a pidl
 736  * creates missing reg keys and directories
 737  *
 738  * PARAMS
 739  *   hwndOwner [I]
 740  *   nFolder   [I] CSIDL_xxxxx
 741  *   ppidl     [O] PIDL of a special folder
 742  *
 743  */
 744 HRESULT WINAPI SHGetSpecialFolderLocation(
 745         HWND hwndOwner,
 746         INT nFolder,
 747         LPITEMIDLIST * ppidl)
 748 {
 749         CHAR            szPath[MAX_PATH];
 750         HRESULT         hr = E_INVALIDARG;
 751
 752         TRACE_(shell)("(%p,0x%x,%p)\n", hwndOwner,nFolder,ppidl);
 753
 754         if (ppidl)
 755         {
 756           *ppidl = NULL;
 757           switch (nFolder)
 758           {
 759             case CSIDL_DESKTOP:
 760               *ppidl = _ILCreateDesktop();
 761               break;
 762
 763             case CSIDL_DRIVES:
 764               *ppidl = _ILCreateMyComputer();
 765               break;
 766
 767             case CSIDL_NETWORK:
 768               *ppidl = _ILCreateNetwork ();
 769               break;
 770
 771             case CSIDL_CONTROLS:
 772               *ppidl = _ILCreateControl ();
 773               break;
 774
 775             case CSIDL_PRINTERS:
 776               *ppidl = _ILCreatePrinter ();
 777               break;
 778
 779             case CSIDL_BITBUCKET:
 780               *ppidl = _ILCreateBitBucket ();
 781               break;
 782
 783             default:
 784               if (SHGetSpecialFolderPathA(hwndOwner, szPath, nFolder, TRUE))
 785               {
 786                 DWORD attributes=0;
 787                 TRACE_(shell)("Value=%s\n",szPath);
 788                 hr = SHILCreateFromPathA(szPath, ppidl, &attributes);
 789               }
 790           }
 791           if(*ppidl) hr = NOERROR;
 792         }
 793
 794         TRACE_(shell)("-- (new pidl %p)\n",*ppidl);
 795         return hr;
 796 }
 797
 798 /*************************************************************************
 799  * SHGetFolderLocation [SHELL32.@]
 800  *
 801  * NOTES
 802  *  the pidl can be a simple one. since we cant get the path out of the pidl
 803  *  we have to take all data from the pidl
 804  */
 805 HRESULT WINAPI SHGetFolderLocation(
 806         HWND hwnd,
 807         int csidl,
 808         HANDLE hToken,
 809         DWORD dwFlags,
 810         LPITEMIDLIST *ppidl)
 811 {
 812         FIXME("%p 0x%08x %p 0x%08lx %p\n",
 813          hwnd, csidl, hToken, dwFlags, ppidl);
 814         return SHGetSpecialFolderLocation(hwnd, csidl, ppidl);
 815 }
 816
 817 /*************************************************************************
 818  * SHGetDataFromIDListA [SHELL32.247]
 819  *
 820  * NOTES
 821  *  the pidl can be a simple one. since we cant get the path out of the pidl
 822  *  we have to take all data from the pidl
 823  */
 824 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
 825 {
 826         TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
 827
 828         pdump(pidl);
 829         if (!psf || !dest )  return E_INVALIDARG;
 830
 831         switch (nFormat)
 832         {
 833           case SHGDFIL_FINDDATA:
 834             {
 835                WIN32_FIND_DATAA * pfd = dest;
 836
 837                if ( len < sizeof (WIN32_FIND_DATAA)) return E_INVALIDARG;
 838
 839                ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
 840                _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
 841                pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
 842                pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
 843                lstrcpynA(pfd->cFileName,_ILGetTextPointer(pidl), MAX_PATH);
 844                lstrcpynA(pfd->cAlternateFileName,_ILGetSTextPointer(pidl), 14);
 845             }
 846             return NOERROR;
 847
 848           case SHGDFIL_NETRESOURCE:
 849           case SHGDFIL_DESCRIPTIONID:
 850             FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
 851             break;
 852
 853           default:
 854             ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
 855         }
 856
 857         return E_INVALIDARG;
 858 }
 859 /*************************************************************************
 860  * SHGetDataFromIDListW [SHELL32.248]
 861  *
 862  */
 863 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
 864 {
 865         TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
 866
 867         pdump(pidl);
 868
 869         if (! psf || !dest )  return E_INVALIDARG;
 870
 871         switch (nFormat)
 872         {
 873           case SHGDFIL_FINDDATA:
 874             {
 875                WIN32_FIND_DATAW * pfd = dest;
 876
 877                if ( len < sizeof (WIN32_FIND_DATAW)) return E_INVALIDARG;
 878
 879                ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
 880                _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
 881                pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
 882                pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
 883                if (!MultiByteToWideChar( CP_ACP, 0, _ILGetTextPointer(pidl), -1,
 884                                          pfd->cFileName, MAX_PATH ))
 885                    pfd->cFileName[MAX_PATH-1] = 0;
 886                if (!MultiByteToWideChar( CP_ACP, 0, _ILGetSTextPointer(pidl), -1,
 887                                          pfd->cAlternateFileName, 14 ))
 888                    pfd->cFileName[13] = 0;
 889             }
 890             return NOERROR;
 891           case SHGDFIL_NETRESOURCE:
 892           case SHGDFIL_DESCRIPTIONID:
 893             FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
 894             break;
 895
 896           default:
 897             ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
 898         }
 899
 900         return E_INVALIDARG;
 901 }
 902
 903 /*************************************************************************
 904  * SHGetPathFromIDListA         [SHELL32.@][NT 4.0: SHELL32.220]
 905  *
 906  * PARAMETERS
 907  *  pidl,   [IN] pidl
 908  *  pszPath [OUT] path
 909  *
 910  * RETURNS
 911  *  path from a passed PIDL.
 912  *
 913  * NOTES
 914  *      NULL returns FALSE
 915  *      desktop pidl gives path to desktopdirectory back
 916  *      special pidls returning FALSE
 917  */
 918 BOOL WINAPI SHGetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath)
 919 {
 920         HRESULT hr;
 921         STRRET str;
 922         LPSHELLFOLDER shellfolder;
 923
 924         TRACE_(shell)("(pidl=%p,%p)\n",pidl,pszPath);
 925         pdump(pidl);
 926
 927         if (!pidl) return FALSE;
 928
 929         hr = SHGetDesktopFolder(&shellfolder);
 930         if (SUCCEEDED (hr)) {
 931             hr = IShellFolder_GetDisplayNameOf(shellfolder,pidl,SHGDN_FORPARSING,&str);
 932             if(SUCCEEDED(hr)) {
 933                 StrRetToStrNA (pszPath, MAX_PATH, &str, pidl);
 934             }
 935             IShellFolder_Release(shellfolder);
 936         }
 937
 938         TRACE_(shell)("-- %s, 0x%08lx\n",pszPath, hr);
 939         return SUCCEEDED(hr);
 940 }
 941 /*************************************************************************
 942  * SHGetPathFromIDListW                         [SHELL32.@]
 943  */
 944 BOOL WINAPI SHGetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath)
 945 {
 946         HRESULT hr;
 947         STRRET str;
 948         LPSHELLFOLDER shellfolder;
 949
 950         TRACE_(shell)("(pidl=%p,%p)\n", pidl, debugstr_w(pszPath));
 951         pdump(pidl);
 952
 953         if (!pidl) return FALSE;
 954
 955         hr = SHGetDesktopFolder(&shellfolder);
 956         if (SUCCEEDED(hr)) {
 957             hr = IShellFolder_GetDisplayNameOf(shellfolder, pidl, SHGDN_FORPARSING, &str);
 958             if (SUCCEEDED(hr)) {
 959                 StrRetToStrNW(pszPath, MAX_PATH, &str, pidl);
 960             }
 961             IShellFolder_Release(shellfolder);
 962         }
 963
 964         TRACE_(shell)("-- %s, 0x%08lx\n",debugstr_w(pszPath), hr);
 965         return SUCCEEDED(hr);
 966 }
 967
 968 /*************************************************************************
 969  *      SHBindToParent          [shell version 5.0]
 970  */
 971 HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
 972 {
 973         IShellFolder    * psf;
 974         LPITEMIDLIST    pidlChild, pidlParent;
 975         HRESULT         hr=E_FAIL;
 976
 977         TRACE_(shell)("pidl=%p\n", pidl);
 978         pdump(pidl);
 979
 980         *ppv = NULL;
 981         if (ppidlLast) *ppidlLast = NULL;
 982
 983         if (_ILIsPidlSimple(pidl))
 984         {
 985           /* we are on desktop level */
 986           if (ppidlLast)
 987             *ppidlLast = ILClone(pidl);
 988           hr = SHGetDesktopFolder((IShellFolder**)ppv);
 989         }
 990         else
 991         {
 992           pidlChild =  ILClone(ILFindLastID(pidl));
 993           pidlParent = ILClone(pidl);
 994           ILRemoveLastID(pidlParent);
 995
 996           hr = SHGetDesktopFolder(&psf);
 997
 998           if (SUCCEEDED(hr))
 999             hr = IShellFolder_BindToObject(psf, pidlParent, NULL, riid, ppv);
1000
1001           if (SUCCEEDED(hr) && ppidlLast)
1002             *ppidlLast = pidlChild;
1003           else
1004             ILFree (pidlChild);
1005
1006           SHFree (pidlParent);
1007           if (psf) IShellFolder_Release(psf);
1008         }
1009
1010
1011         TRACE_(shell)("-- psf=%p pidl=%p ret=0x%08lx\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
1012         return hr;
1013 }
1014
1015 /*************************************************************************
1016  * SHGetPathFromIDList          [SHELL32.@][NT 4.0: SHELL32.219]
1017  */
1018 BOOL WINAPI SHGetPathFromIDListAW(LPCITEMIDLIST pidl,LPVOID pszPath)
1019 {
1020         TRACE_(shell)("(pidl=%p,%p)\n",pidl,pszPath);
1021
1022         if (SHELL_OsIsUnicode())
1023           return SHGetPathFromIDListW(pidl,pszPath);
1024         return SHGetPathFromIDListA(pidl,pszPath);
1025 }
1026
1027 /**************************************************************************
1028  *
1029  *              internal functions
1030  *
1031  *      ### 1. section creating pidls ###
1032  *
1033  *************************************************************************
1034  *  _ILCreateDesktop()
1035  *  _ILCreateIExplore()
1036  *  _ILCreateMyComputer()
1037  *  _ILCreateDrive()
1038  *  _ILCreateFolder()
1039  *  _ILCreateValue()
1040  */
1041 LPITEMIDLIST _ILCreateDesktop()
1042 {       TRACE("()\n");
1043         return _ILCreate(PT_DESKTOP, NULL, 0);
1044 }
1045
1046 LPITEMIDLIST _ILCreateMyComputer()
1047 {       TRACE("()\n");
1048         return _ILCreate(PT_MYCOMP, &CLSID_MyComputer, sizeof(GUID));
1049 }
1050
1051 LPITEMIDLIST _ILCreateIExplore()
1052 {       TRACE("()\n");
1053         return _ILCreate(PT_MYCOMP, &CLSID_Internet, sizeof(GUID));
1054 }
1055
1056 LPITEMIDLIST _ILCreateControl()
1057 {       TRACE("()\n");
1058         return _ILCreate(PT_SPECIAL, &CLSID_ControlPanel, sizeof(GUID));
1059 }
1060
1061 LPITEMIDLIST _ILCreatePrinter()
1062 {       TRACE("()\n");
1063         return _ILCreate(PT_SPECIAL, &CLSID_Printers, sizeof(GUID));
1064 }
1065
1066 LPITEMIDLIST _ILCreateNetwork()
1067 {       TRACE("()\n");
1068         return _ILCreate(PT_MYCOMP, &CLSID_NetworkPlaces, sizeof(GUID));
1069 }
1070
1071 LPITEMIDLIST _ILCreateBitBucket()
1072 {       TRACE("()\n");
1073         return _ILCreate(PT_MYCOMP, &CLSID_RecycleBin, sizeof(GUID));
1074 }
1075
1076 LPITEMIDLIST _ILCreateDrive( LPCSTR lpszNew)
1077 {       char sTemp[4];
1078         lstrcpynA (sTemp,lpszNew,4);
1079         sTemp[2]='\\';
1080         sTemp[3]=0x00;
1081         TRACE("(%s)\n",sTemp);
1082         return _ILCreate(PT_DRIVE,(LPVOID)&sTemp[0],4);
1083 }
1084
1085 LPITEMIDLIST _ILCreateFolder( WIN32_FIND_DATAA * stffile )
1086 {
1087         char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1088         char *  pbuff = buff;
1089         ULONG   len, len1;
1090         LPITEMIDLIST pidl;
1091
1092         TRACE("(%s, %s)\n",stffile->cAlternateFileName, stffile->cFileName);
1093
1094         /* prepare buffer with both names */
1095         len = strlen (stffile->cFileName) + 1;
1096         memcpy (pbuff, stffile->cFileName, len);
1097         pbuff += len;
1098
1099         if (stffile->cAlternateFileName)
1100         {
1101           len1 = strlen (stffile->cAlternateFileName)+1;
1102           memcpy (pbuff, stffile->cAlternateFileName, len1);
1103         }
1104         else
1105         {
1106           len1 = 1;
1107           *pbuff = 0x00;
1108         }
1109
1110         pidl = _ILCreate(PT_FOLDER, (LPVOID)buff, len + len1);
1111
1112         /* set attributes */
1113         if (pidl)
1114         {
1115           LPPIDLDATA pData;
1116           pData = _ILGetDataPointer(pidl);
1117           FileTimeToDosDateTime(&(stffile->ftLastWriteTime),&pData->u.folder.uFileDate,&pData->u.folder.uFileTime);
1118           pData->u.folder.dwFileSize = stffile->nFileSizeLow;
1119           pData->u.folder.uFileAttribs = stffile->dwFileAttributes;
1120         }
1121
1122         return pidl;
1123 }
1124
1125 LPITEMIDLIST _ILCreateValue(WIN32_FIND_DATAA * stffile)
1126 {
1127         char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1128         char *  pbuff = buff;
1129         ULONG   len, len1;
1130         LPITEMIDLIST pidl;
1131
1132         TRACE("(%s, %s)\n",stffile->cAlternateFileName, stffile->cFileName);
1133
1134         /* prepare buffer with both names */
1135         len = strlen (stffile->cFileName) + 1;
1136         memcpy (pbuff, stffile->cFileName, len);
1137         pbuff += len;
1138
1139         if (stffile->cAlternateFileName)
1140         {
1141           len1 = strlen (stffile->cAlternateFileName)+1;
1142           memcpy (pbuff, stffile->cAlternateFileName, len1);
1143         }
1144         else
1145         {
1146           len1 = 1;
1147           *pbuff = 0x00;
1148         }
1149
1150         pidl = _ILCreate(PT_VALUE, (LPVOID)buff, len + len1);
1151
1152         /* set attributes */
1153         if (pidl)
1154         {
1155           LPPIDLDATA pData;
1156           pData = _ILGetDataPointer(pidl);
1157           FileTimeToDosDateTime(&(stffile->ftLastWriteTime),&pData->u.folder.uFileDate,&pData->u.folder.uFileTime);
1158           pData->u.folder.dwFileSize = stffile->nFileSizeLow;
1159           pData->u.folder.uFileAttribs=stffile->dwFileAttributes;
1160         }
1161
1162         return pidl;
1163 }
1164
1165 LPITEMIDLIST _ILCreateFromPathA(LPCSTR szPath)
1166 {
1167         HANDLE hFile;
1168         WIN32_FIND_DATAA stffile;
1169         LPITEMIDLIST pidl = NULL;
1170
1171         hFile = FindFirstFileA(szPath, &stffile);
1172         if (hFile != INVALID_HANDLE_VALUE)
1173         {
1174           if (stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1175             pidl = _ILCreateFolder(&stffile);
1176           else
1177             pidl = _ILCreateValue(&stffile);
1178           FindClose(hFile);
1179         }
1180         return pidl;
1181 }
1182
1183 LPITEMIDLIST _ILCreateSpecial(LPCSTR szGUID)
1184 {
1185         IID iid;
1186
1187         if (!SUCCEEDED(SHCLSIDFromStringA(szGUID, &iid)))
1188         {
1189           ERR("%s is not a GUID\n", szGUID);
1190           return NULL;
1191         }
1192         return _ILCreate(PT_MYCOMP, &iid, sizeof(IID));
1193 }
1194
1195 /**************************************************************************
1196  *  _ILCreate()
1197  *  Creates a new PIDL
1198  *  type = PT_DESKTOP | PT_DRIVE | PT_FOLDER | PT_VALUE
1199  *  pIn = data
1200  *  uInSize = size of data (raw)
1201  */
1202
1203 LPITEMIDLIST _ILCreate(PIDLTYPE type, LPCVOID pIn, UINT uInSize)
1204 {
1205         LPITEMIDLIST   pidlOut = NULL, pidlTemp = NULL;
1206         LPPIDLDATA     pData;
1207         UINT           uSize = 0;
1208         LPSTR   pszDest;
1209
1210         TRACE("(0x%02x %p %i)\n",type,pIn,uInSize);
1211
1212         switch (type)
1213         {
1214           case PT_DESKTOP:
1215             uSize = 0;
1216             break;
1217           case PT_SPECIAL:
1218           case PT_MYCOMP:
1219             uSize = 2 + 2 + sizeof(GUID);
1220             break;
1221           case PT_DRIVE:
1222             uSize = 2 + 23;
1223             break;
1224           case PT_FOLDER:
1225           case PT_VALUE:
1226             uSize = 2 + 12 + uInSize;
1227             break;
1228           default:
1229             FIXME("can't create type: 0x%08x\n",type);
1230             return NULL;
1231         }
1232
1233         if(!(pidlOut = SHAlloc(uSize + 2))) return NULL;
1234         ZeroMemory(pidlOut, uSize + 2);
1235         pidlOut->mkid.cb = uSize;
1236
1237         switch (type)
1238         {
1239           case PT_DESKTOP:
1240             TRACE("- create Desktop\n");
1241             break;
1242
1243           case PT_SPECIAL:
1244           case PT_MYCOMP:
1245             pData =_ILGetDataPointer(pidlOut);
1246             pData->type = type;
1247             memcpy(&(pData->u.mycomp.guid), pIn, uInSize);
1248             TRACE("-- create GUID-pidl %s\n", debugstr_guid(&(pData->u.mycomp.guid)));
1249             break;
1250
1251           case PT_DRIVE:
1252             pData =_ILGetDataPointer(pidlOut);
1253             pData->type = type;
1254             pszDest = _ILGetTextPointer(pidlOut);
1255             memcpy(pszDest, pIn, uInSize);
1256             TRACE("-- create Drive: %s\n",debugstr_a(pszDest));
1257             break;
1258
1259           case PT_FOLDER:
1260           case PT_VALUE:
1261             pData =_ILGetDataPointer(pidlOut);
1262             pData->type = type;
1263             pszDest =  _ILGetTextPointer(pidlOut);
1264             memcpy(pszDest, pIn, uInSize);
1265             TRACE("-- create Value: %s\n",debugstr_a(pszDest));
1266             break;
1267         }
1268
1269         pidlTemp = ILGetNext(pidlOut);
1270         if (pidlTemp)
1271           pidlTemp->mkid.cb = 0x00;
1272
1273         TRACE("-- (pidl=%p, size=%u)\n", pidlOut, uSize);
1274         return pidlOut;
1275 }
1276
1277 /**************************************************************************
1278  *  _ILGetDrive()
1279  *
1280  *  Gets the text for the drive eg. 'c:\'
1281  *
1282  * RETURNS
1283  *  strlen (lpszText)
1284  */
1285 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1286 {       TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1287
1288         if(_ILIsMyComputer(pidl))
1289           pidl = ILGetNext(pidl);
1290
1291         if (pidl && _ILIsDrive(pidl))
1292           return _ILSimpleGetText(pidl, pOut, uSize);
1293
1294         return 0;
1295 }
1296
1297 /**************************************************************************
1298  *
1299  *      ### 2. section testing pidls ###
1300  *
1301  **************************************************************************
1302  *  _ILIsDesktop()
1303  *  _ILIsMyComputer()
1304  *  _ILIsSpecialFolder()
1305  *  _ILIsDrive()
1306  *  _ILIsFolder()
1307  *  _ILIsValue()
1308  *  _ILIsPidlSimple()
1309  */
1310 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1311 {       TRACE("(%p)\n",pidl);
1312         return pidl && pidl->mkid.cb  ? 0 : 1;
1313 }
1314
1315 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1316 {
1317         REFIID iid = _ILGetGUIDPointer(pidl);
1318
1319         TRACE("(%p)\n",pidl);
1320
1321         if (iid)
1322           return IsEqualIID(iid, &CLSID_MyComputer);
1323         return FALSE;
1324 }
1325
1326 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1327 {
1328         LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1329         TRACE("(%p)\n",pidl);
1330         return (pidl && ( (lpPData && (PT_MYCOMP== lpPData->type || PT_SPECIAL== lpPData->type)) ||
1331                           (pidl && pidl->mkid.cb == 0x00)
1332                         ));
1333 }
1334
1335 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1336 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1337         TRACE("(%p)\n",pidl);
1338         return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1339                                     PT_DRIVE1 == lpPData->type ||
1340                                     PT_DRIVE2 == lpPData->type ||
1341                                     PT_DRIVE3 == lpPData->type));
1342 }
1343
1344 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1345 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1346         TRACE("(%p)\n",pidl);
1347         return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1348 }
1349
1350 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1351 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1352         TRACE("(%p)\n",pidl);
1353         return (pidl && lpPData && PT_VALUE == lpPData->type);
1354 }
1355
1356 /**************************************************************************
1357  *      _ILIsPidlSimple
1358  */
1359 BOOL _ILIsPidlSimple ( LPCITEMIDLIST pidl)
1360 {
1361         BOOL ret = TRUE;
1362
1363         if(! _ILIsDesktop(pidl))        /* pidl=NULL or mkid.cb=0 */
1364         {
1365           WORD len = pidl->mkid.cb;
1366           LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((LPBYTE)pidl) + len );
1367           if (pidlnext->mkid.cb)
1368             ret = FALSE;
1369         }
1370
1371         TRACE("%s\n", ret ? "Yes" : "No");
1372         return ret;
1373 }
1374
1375 /**************************************************************************
1376  *
1377  *      ### 3. section getting values from pidls ###
1378  */
1379
1380  /**************************************************************************
1381  *  _ILSimpleGetText
1382  *
1383  * gets the text for the first item in the pidl (eg. simple pidl)
1384  *
1385  * returns the length of the string
1386  */
1387 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
1388 {
1389         DWORD           dwReturn=0;
1390         LPSTR           szSrc;
1391         GUID const *    riid;
1392         char szTemp[MAX_PATH];
1393
1394         TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1395
1396         if (!pidl) return 0;
1397
1398         if (szOut)
1399           *szOut = 0;
1400
1401         if (_ILIsDesktop(pidl))
1402         {
1403          /* desktop */
1404           if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1405           {
1406             if (szOut)
1407               lstrcpynA(szOut, szTemp, uOutSize);
1408
1409             dwReturn = strlen (szTemp);
1410           }
1411         }
1412         else if (( szSrc = _ILGetTextPointer(pidl) ))
1413         {
1414           /* filesystem */
1415           if (szOut)
1416             lstrcpynA(szOut, szSrc, uOutSize);
1417
1418           dwReturn = strlen(szSrc);
1419         }
1420         else if (( riid = _ILGetGUIDPointer(pidl) ))
1421         {
1422           /* special folder */
1423           if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
1424           {
1425             if (szOut)
1426               lstrcpynA(szOut, szTemp, uOutSize);
1427
1428             dwReturn = strlen (szTemp);
1429           }
1430         }
1431         else
1432         {
1433           ERR("-- no text\n");
1434         }
1435
1436         TRACE("-- (%p=%s 0x%08lx)\n",szOut,debugstr_a(szOut),dwReturn);
1437         return dwReturn;
1438 }
1439
1440 /**************************************************************************
1441  *
1442  *      ### 4. getting pointers to parts of pidls ###
1443  *
1444  **************************************************************************
1445  *  _ILGetDataPointer()
1446  */
1447 LPPIDLDATA _ILGetDataPointer(LPITEMIDLIST pidl)
1448 {
1449         if(pidl && pidl->mkid.cb != 0x00)
1450           return (LPPIDLDATA) &(pidl->mkid.abID);
1451         return NULL;
1452 }
1453
1454 /**************************************************************************
1455  *  _ILGetTextPointer()
1456  * gets a pointer to the long filename string stored in the pidl
1457  */
1458 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
1459 {/*     TRACE(pidl,"(pidl%p)\n", pidl);*/
1460
1461         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1462
1463         if (pdata)
1464         {
1465           switch (pdata->type)
1466           {
1467             case PT_MYCOMP:
1468             case PT_SPECIAL:
1469               return NULL;
1470
1471             case PT_DRIVE:
1472             case PT_DRIVE1:
1473             case PT_DRIVE2:
1474             case PT_DRIVE3:
1475               return (LPSTR)&(pdata->u.drive.szDriveName);
1476
1477             case PT_FOLDER:
1478             case PT_FOLDER1:
1479             case PT_VALUE:
1480             case PT_IESPECIAL1:
1481             case PT_IESPECIAL2:
1482               return (LPSTR)&(pdata->u.file.szNames);
1483
1484             case PT_WORKGRP:
1485             case PT_COMP:
1486             case PT_NETWORK:
1487             case PT_SHARE:
1488               return (LPSTR)&(pdata->u.network.szNames);
1489           }
1490         }
1491         return NULL;
1492 }
1493
1494 /**************************************************************************
1495  *  _ILGetSTextPointer()
1496  * gets a pointer to the short filename string stored in the pidl
1497  */
1498 LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
1499 {/*     TRACE(pidl,"(pidl%p)\n", pidl);*/
1500
1501         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1502
1503         if (pdata)
1504         {
1505           switch (pdata->type)
1506           {
1507             case PT_FOLDER:
1508             case PT_VALUE:
1509             case PT_IESPECIAL1:
1510             case PT_IESPECIAL2:
1511               return (LPSTR)(pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1);
1512
1513             case PT_WORKGRP:
1514               return (LPSTR)(pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1);
1515           }
1516         }
1517         return NULL;
1518 }
1519
1520 /**************************************************************************
1521  * _ILGetGUIDPointer()
1522  *
1523  * returns reference to guid stored in some pidls
1524  */
1525 REFIID _ILGetGUIDPointer(LPCITEMIDLIST pidl)
1526 {
1527         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1528
1529         TRACE("%p\n", pidl);
1530
1531         if (pdata)
1532         {
1533           TRACE("pdata->type 0x%04x\n", pdata->type);
1534           switch (pdata->type)
1535           {
1536             case PT_SPECIAL:
1537             case PT_MYCOMP:
1538               return (REFIID) &(pdata->u.mycomp.guid);
1539
1540             default:
1541                 TRACE("Unknown pidl type 0x%04x\n", pdata->type);
1542                 break;
1543           }
1544         }
1545         return NULL;
1546 }
1547
1548 /*************************************************************************
1549  * _ILGetFileDateTime
1550  *
1551  * Given the ItemIdList, get the FileTime
1552  *
1553  * PARAMS
1554  *      pidl        [I] The ItemIDList
1555  *      pFt         [I] the resulted FILETIME of the file
1556  *
1557  * RETURNS
1558  *     True if Successful
1559  *
1560  * NOTES
1561  *
1562  */
1563 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
1564 {
1565     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1566
1567     if(! pdata) return FALSE;
1568
1569     switch (pdata->type)
1570     {
1571         case PT_FOLDER:
1572             DosDateTimeToFileTime(pdata->u.folder.uFileDate, pdata->u.folder.uFileTime, pFt);
1573             break;
1574         case PT_VALUE:
1575             DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
1576             break;
1577         default:
1578             return FALSE;
1579     }
1580     return TRUE;
1581 }
1582
1583 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1584 {
1585         FILETIME ft,lft;
1586         SYSTEMTIME time;
1587         BOOL ret;
1588
1589         if (_ILGetFileDateTime( pidl, &ft )) {
1590             FileTimeToLocalFileTime(&ft, &lft);
1591             FileTimeToSystemTime (&lft, &time);
1592             ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
1593         } else {
1594             pOut[0] = '\0';
1595             ret = FALSE;
1596         }
1597         return ret;
1598
1599 }
1600
1601 /*************************************************************************
1602  * _ILGetFileSize
1603  *
1604  * Given the ItemIdList, get the FileSize
1605  *
1606  * PARAMS
1607  *      pidl    [I] The ItemIDList
1608  *      pOut    [I] The buffer to save the result
1609  *      uOutsize [I] The size of the buffer
1610  *
1611  * RETURNS
1612  *     The FileSize
1613  *
1614  * NOTES
1615  *      pOut can be null when no string is needed
1616  *
1617  */
1618 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1619 {
1620         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1621         DWORD dwSize;
1622
1623         if(! pdata) return 0;
1624
1625         switch (pdata->type)
1626         {
1627           case PT_VALUE:
1628             dwSize = pdata->u.file.dwFileSize;
1629             if (pOut) StrFormatByteSizeA(dwSize, pOut, uOutSize);
1630             return dwSize;
1631         }
1632         if (pOut) *pOut = 0x00;
1633         return 0;
1634 }
1635
1636 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1637 {
1638         char szTemp[MAX_PATH];
1639         const char * pPoint;
1640         LPITEMIDLIST  pidlTemp=pidl;
1641
1642         TRACE("pidl=%p\n",pidl);
1643
1644         if (!pidl) return FALSE;
1645
1646         pidlTemp = ILFindLastID(pidl);
1647
1648         if (!_ILIsValue(pidlTemp)) return FALSE;
1649         if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH)) return FALSE;
1650
1651         pPoint = PathFindExtensionA(szTemp);
1652
1653         if (! *pPoint) return FALSE;
1654
1655         pPoint++;
1656         lstrcpynA(pOut, pPoint, uOutSize);
1657         TRACE("%s\n",pOut);
1658
1659         return TRUE;
1660 }
1661
1662 /*************************************************************************
1663  * _ILGetFileType
1664  *
1665  * Given the ItemIdList, get the file type description
1666  *
1667  * PARAMS
1668  *      pidl        [I] The ItemIDList (simple)
1669  *      pOut        [I] The buffer to save the result
1670  *      uOutsize    [I] The size of the buffer
1671  *
1672  * RETURNS
1673  *      nothing
1674  *
1675  * NOTES
1676  *      This function copies as much as possible into the buffer.
1677  */
1678 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1679 {
1680         if(_ILIsValue(pidl))
1681         {
1682           char sTemp[64];
1683           if(uOutSize > 0)
1684           {
1685             pOut[0] = 0;
1686           }
1687           if (_ILGetExtension (pidl, sTemp, 64))
1688           {
1689             if (!( HCR_MapTypeToValueA(sTemp, sTemp, 64, TRUE)
1690                 && HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE )))
1691             {
1692               lstrcpynA (pOut, sTemp, uOutSize - 6);
1693               strcat (pOut, "-file");
1694             }
1695           }
1696         }
1697         else
1698         {
1699           lstrcpynA(pOut, "Folder", uOutSize);
1700         }
1701 }
1702
1703 /*************************************************************************
1704  * _ILGetFileAttributes
1705  *
1706  * Given the ItemIdList, get the Attrib string format
1707  *
1708  * PARAMS
1709  *      pidl        [I] The ItemIDList
1710  *      pOut        [I] The buffer to save the result
1711  *      uOutsize    [I] The size of the Buffer
1712  *
1713  * RETURNS
1714  *     Attributes
1715  *
1716  * FIXME
1717  *  return value 0 in case of error is a valid return value
1718  *
1719  */
1720 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1721 {
1722         LPPIDLDATA pData =_ILGetDataPointer(pidl);
1723         WORD wAttrib = 0;
1724         int i;
1725
1726         if(! pData) return 0;
1727
1728         switch(pData->type)
1729         {
1730           case PT_FOLDER:
1731             wAttrib = pData->u.folder.uFileAttribs;
1732             break;
1733           case PT_VALUE:
1734             wAttrib = pData->u.file.uFileAttribs;
1735             break;
1736         }
1737
1738         if(uOutSize >= 6)
1739         {
1740           i=0;
1741           if(wAttrib & FILE_ATTRIBUTE_READONLY)
1742           {
1743             pOut[i++] = 'R';
1744           }
1745           if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
1746           {
1747             pOut[i++] = 'H';
1748           }
1749           if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
1750           {
1751             pOut[i++] = 'S';
1752           }
1753           if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
1754           {
1755             pOut[i++] = 'A';
1756           }
1757           if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
1758           {
1759             pOut[i++] = 'C';
1760           }
1761           pOut[i] = 0x00;
1762         }
1763         return wAttrib;
1764 }
1765
1766 /*************************************************************************
1767 * ILFreeaPidl
1768 *
1769 * free a aPidl struct
1770 */
1771 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
1772 {
1773         UINT   i;
1774
1775         if (apidl)
1776         {
1777           for (i = 0; i < cidl; i++) SHFree(apidl[i]);
1778           SHFree(apidl);
1779         }
1780 }
1781
1782 /*************************************************************************
1783 * ILCopyaPidl
1784 *
1785 * copies an aPidl struct
1786 */
1787 LPITEMIDLIST *  _ILCopyaPidl(LPITEMIDLIST * apidlsrc, UINT cidl)
1788 {
1789         UINT i;
1790         LPITEMIDLIST * apidldest = (LPITEMIDLIST*)SHAlloc(cidl * sizeof(LPITEMIDLIST));
1791         if(!apidlsrc) return NULL;
1792
1793         for (i = 0; i < cidl; i++)
1794           apidldest[i] = ILClone(apidlsrc[i]);
1795
1796         return apidldest;
1797 }
1798
1799 /*************************************************************************
1800 * _ILCopyCidaToaPidl
1801 *
1802 * creates aPidl from CIDA
1803 */
1804 LPITEMIDLIST * _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, LPIDA cida)
1805 {
1806         UINT i;
1807         LPITEMIDLIST * dst = (LPITEMIDLIST*)SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
1808
1809         if(!dst) return NULL;
1810
1811         if (pidl)
1812           *pidl = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[0]]));
1813
1814         for (i = 0; i < cida->cidl; i++)
1815           dst[i] = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[i + 1]]));
1816
1817         return dst;
1818 }