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