dlls/shell32/pidl.c

   1 /*
   2  *      pidl Handling
   3  *
   4  *      Copyright 1998  Juergen Schmied
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  * NOTES
  21  *  a pidl == NULL means desktop and is legal
  22  *
  23  */
  24
  25 #include "config.h"
  26 #include "wine/port.h"
  27
  28 #include <ctype.h>
  29 #include <stdarg.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 #define NONAMELESSUNION
  34 #define NONAMELESSSTRUCT
  35 #include "windef.h"
  36 #include "winbase.h"
  37 #include "winreg.h"
  38 #include "objbase.h"
  39 #include "shlguid.h"
  40 #include "winerror.h"
  41 #include "winnls.h"
  42 #include "undocshell.h"
  43 #include "shell32_main.h"
  44 #include "shellapi.h"
  45 #include "shlwapi.h"
  46
  47 #include "pidl.h"
  48 #include "debughlp.h"
  49 #include "wine/debug.h"
  50
  51 WINE_DEFAULT_DEBUG_CHANNEL(pidl);
  52 WINE_DECLARE_DEBUG_CHANNEL(shell);
  53
  54 /* from comctl32.dll */
  55 extern LPVOID WINAPI Alloc(INT);
  56 extern BOOL WINAPI Free(LPVOID);
  57
  58 /*************************************************************************
  59  * ILGetDisplayNameEx           [SHELL32.186]
  60  *
  61  * Retrieves the display name of an ItemIDList
  62  *
  63  * PARAMS
  64  *  psf        [I]   Shell Folder to start with, if NULL the desktop is used
  65  *  pidl       [I]   ItemIDList relativ to the psf to get the display name for
  66  *  path       [O]   Filled in with the display name, assumed to be at least MAX_PATH long
  67  *  type       [I]   Type of display name to retrieve
  68  *                    0 = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR uses always the desktop as root
  69  *                    1 = SHGDN_NORMAL relative to the root folder
  70  *                    2 = SHGDN_INFOLDER relative to the root folder, only the last name
  71  *
  72  * RETURNS
  73  *  True if the display name could be retrieved successfully, False otherwise
  74  */
  75 BOOL WINAPI ILGetDisplayNameExA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPSTR path, DWORD type)
  76 {
  77         BOOL ret = FALSE;
  78         WCHAR wPath[MAX_PATH];
  79
  80         TRACE("%p %p %p %ld\n", psf, pidl, path, type);
  81
  82         if (!pidl || !path)
  83           return FALSE;
  84
  85         ret = ILGetDisplayNameExW(psf, pidl, wPath, type);
  86         WideCharToMultiByte(CP_ACP, 0, wPath, -1, path, MAX_PATH, NULL, NULL);
  87         TRACE("%p %p %s\n", psf, pidl, debugstr_a(path));
  88
  89         return ret;
  90 }
  91
  92 BOOL WINAPI ILGetDisplayNameExW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPWSTR path, DWORD type)
  93 {
  94         LPSHELLFOLDER psfParent, lsf = psf;
  95         HRESULT ret = NO_ERROR;
  96         LPCITEMIDLIST pidllast;
  97         STRRET strret;
  98         DWORD flag;
  99
 100         TRACE("%p %p %p %ld\n", psf, pidl, path, type);
 101
 102         if (!pidl || !path)
 103           return FALSE;
 104
 105         if (!lsf)
 106         {
 107           ret = SHGetDesktopFolder(&lsf);
 108           if (FAILED(ret))
 109             return FALSE;
 110         }
 111
 112         if (type >= 0 && type <= 2)
 113         {
 114           switch (type)
 115           {
 116             case ILGDN_FORPARSING:
 117               flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 118               break;
 119             case ILGDN_NORMAL:
 120               flag = SHGDN_NORMAL;
 121               break;
 122             case ILGDN_INFOLDER:
 123               flag = SHGDN_INFOLDER;
 124               break;
 125             default:
 126               FIXME("Unknown type parameter = %lx\n", type);
 127               flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 128               break;
 129           }
 130           if (!*(LPWORD)pidl || type == ILGDN_FORPARSING)
 131           {
 132             ret = IShellFolder_GetDisplayNameOf(lsf, pidl, flag, &strret);
 133             if (SUCCEEDED(ret))
 134             {
 135               ret = StrRetToStrNW(path, MAX_PATH, &strret, pidl);
 136             }
 137           }
 138           else
 139           {
 140             ret = SHBindToParent(pidl, &IID_IShellFolder, (LPVOID*)&psfParent, &pidllast);
 141             if (SUCCEEDED(ret))
 142             {
 143               ret = IShellFolder_GetDisplayNameOf(psfParent, pidllast, flag, &strret);
 144               if (SUCCEEDED(ret))
 145               {
 146                 ret = StrRetToStrNW(path, MAX_PATH, &strret, pidllast);
 147               }
 148               IShellFolder_Release(psfParent);
 149             }
 150           }
 151         }
 152
 153         TRACE("%p %p %s\n", psf, pidl, debugstr_w(path));
 154
 155         if (!psf)
 156           IShellFolder_Release(lsf);
 157         return SUCCEEDED(ret);
 158 }
 159
 160 BOOL WINAPI ILGetDisplayNameEx(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPVOID path, DWORD type)
 161 {
 162         TRACE_(shell)("%p %p %p %ld\n", psf, pidl, path, type);
 163         if (SHELL_OsIsUnicode())
 164           return ILGetDisplayNameExW(psf, pidl, path, type);
 165         return ILGetDisplayNameExA(psf, pidl, path, type);
 166 }
 167
 168 /*************************************************************************
 169  * ILGetDisplayName                     [SHELL32.15]
 170  */
 171 BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl, LPVOID path)
 172 {
 173         TRACE_(shell)("%p %p\n", pidl, path);
 174         if (SHELL_OsIsUnicode())
 175           return ILGetDisplayNameExW(NULL, pidl, path, ILGDN_FORPARSING);
 176         return ILGetDisplayNameExA(NULL, pidl, path, ILGDN_FORPARSING);
 177 }
 178
 179 /*************************************************************************
 180  * ILFindLastID [SHELL32.16]
 181  *
 182  * NOTES
 183  *   observed: pidl=Desktop return=pidl
 184  */
 185 LPITEMIDLIST WINAPI ILFindLastID(LPCITEMIDLIST pidl)
 186 {       LPCITEMIDLIST   pidlLast = pidl;
 187
 188         TRACE("(pidl=%p)\n",pidl);
 189
 190         while (pidl->mkid.cb)
 191         {
 192           pidlLast = pidl;
 193           pidl = ILGetNext(pidl);
 194         }
 195         return (LPITEMIDLIST)pidlLast;
 196 }
 197 /*************************************************************************
 198  * ILRemoveLastID [SHELL32.17]
 199  *
 200  * NOTES
 201  *   when pidl=Desktop return=FALSE
 202  */
 203 BOOL WINAPI ILRemoveLastID(LPCITEMIDLIST pidl)
 204 {
 205         TRACE_(shell)("pidl=%p\n",pidl);
 206
 207         if (!pidl || !pidl->mkid.cb)
 208           return 0;
 209         ILFindLastID(pidl)->mkid.cb = 0;
 210         return 1;
 211 }
 212
 213 /*************************************************************************
 214  * ILClone [SHELL32.18]
 215  *
 216  * NOTES
 217  *    duplicate an idlist
 218  */
 219 LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
 220 { DWORD    len;
 221   LPITEMIDLIST  newpidl;
 222
 223   if (!pidl)
 224     return NULL;
 225
 226   len = ILGetSize(pidl);
 227   newpidl = (LPITEMIDLIST)SHAlloc(len);
 228   if (newpidl)
 229     memcpy(newpidl,pidl,len);
 230
 231   TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 232   pdump(pidl);
 233
 234   return newpidl;
 235 }
 236 /*************************************************************************
 237  * ILCloneFirst [SHELL32.19]
 238  *
 239  * NOTES
 240  *  duplicates the first idlist of a complex pidl
 241  */
 242 LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
 243 {       DWORD len;
 244         LPITEMIDLIST pidlNew = NULL;
 245
 246         TRACE("pidl=%p \n",pidl);
 247         pdump(pidl);
 248
 249         if (pidl)
 250         {
 251           len = pidl->mkid.cb;
 252           pidlNew = (LPITEMIDLIST) SHAlloc (len+2);
 253           if (pidlNew)
 254           {
 255             memcpy(pidlNew,pidl,len+2);         /* 2 -> mind a desktop pidl */
 256
 257             if (len)
 258               ILGetNext(pidlNew)->mkid.cb = 0x00;
 259           }
 260         }
 261         TRACE("-- newpidl=%p\n",pidlNew);
 262
 263         return pidlNew;
 264 }
 265
 266 /*************************************************************************
 267  * ILLoadFromStream (SHELL32.26)
 268  *
 269  * NOTES
 270  *   the first two bytes are the len, the pidl is following then
 271  */
 272 HRESULT WINAPI ILLoadFromStream (IStream * pStream, LPITEMIDLIST * ppPidl)
 273 {       WORD            wLen = 0;
 274         DWORD           dwBytesRead;
 275         HRESULT         ret = E_FAIL;
 276
 277
 278         TRACE_(shell)("%p %p\n", pStream ,  ppPidl);
 279
 280         if (*ppPidl)
 281         { SHFree(*ppPidl);
 282           *ppPidl = NULL;
 283         }
 284
 285         IStream_AddRef (pStream);
 286
 287         if (SUCCEEDED(IStream_Read(pStream, (LPVOID)&wLen, 2, &dwBytesRead)))
 288         {
 289           TRACE("PIDL length is %d\n", wLen);
 290           if (wLen != 0) {
 291             *ppPidl = SHAlloc (wLen);
 292             if (SUCCEEDED(IStream_Read(pStream, *ppPidl , wLen, &dwBytesRead))) {
 293                 TRACE("Stream read OK\n");
 294                 ret = S_OK;
 295             } else {
 296                 WARN("reading pidl failed\n");
 297                 SHFree(*ppPidl);
 298                 *ppPidl = NULL;
 299             }
 300           } else {
 301             *ppPidl = NULL;
 302             ret = S_OK;
 303           }
 304         }
 305
 306         /* we are not yet fully compatible */
 307         if (*ppPidl && !pcheck(*ppPidl))
 308         {
 309           WARN("Check failed\n");
 310           SHFree(*ppPidl);
 311           *ppPidl = NULL;
 312         }
 313
 314
 315         IStream_Release (pStream);
 316         TRACE("done\n");
 317         return ret;
 318 }
 319
 320 /*************************************************************************
 321  * ILSaveToStream (SHELL32.27)
 322  *
 323  * NOTES
 324  *   the first two bytes are the len, the pidl is following then
 325  */
 326 HRESULT WINAPI ILSaveToStream (IStream * pStream, LPCITEMIDLIST pPidl)
 327 {
 328         LPCITEMIDLIST   pidl;
 329         WORD            wLen = 0;
 330         HRESULT         ret = E_FAIL;
 331
 332         TRACE_(shell)("%p %p\n", pStream, pPidl);
 333
 334         IStream_AddRef (pStream);
 335
 336         pidl = pPidl;
 337         while (pidl->mkid.cb)
 338         {
 339           wLen += sizeof(WORD) + pidl->mkid.cb;
 340           pidl = ILGetNext(pidl);
 341         }
 342
 343         if (SUCCEEDED(IStream_Write(pStream, (LPVOID)&wLen, 2, NULL)))
 344         {
 345           if (SUCCEEDED(IStream_Write(pStream, pPidl, wLen, NULL)))
 346           { ret = S_OK;
 347           }
 348         }
 349         IStream_Release (pStream);
 350
 351         return ret;
 352 }
 353
 354 /*************************************************************************
 355  * SHILCreateFromPath        [SHELL32.28]
 356  *
 357  * Create an ItemIDList from a path
 358  *
 359  * PARAMS
 360  *  path       [I]
 361  *  ppidl      [O]
 362  *  attributes [I/O] requested attributes on call and actual attributes when
 363  *                   the function returns
 364  *
 365  * RETURNS
 366  *  NO_ERROR if successful, or an OLE errer code otherwise
 367  *
 368  * NOTES
 369  *  Wrapper for IShellFolder_ParseDisplayName().
 370  */
 371 HRESULT WINAPI SHILCreateFromPathA(LPCSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 372 {
 373         LPSHELLFOLDER sf;
 374         WCHAR lpszDisplayName[MAX_PATH];
 375         DWORD pchEaten;
 376         HRESULT ret = E_FAIL;
 377
 378         TRACE_(shell)("%s %p 0x%08lx\n", path, ppidl, attributes ? *attributes : 0);
 379
 380         if (!MultiByteToWideChar(CP_ACP, 0, path, -1, lpszDisplayName, MAX_PATH))
 381           lpszDisplayName[MAX_PATH-1] = 0;
 382
 383         if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 384         {
 385           ret = IShellFolder_ParseDisplayName(sf, 0, NULL, lpszDisplayName, &pchEaten, ppidl, attributes);
 386           IShellFolder_Release(sf);
 387         }
 388         return ret;
 389 }
 390
 391 HRESULT WINAPI SHILCreateFromPathW(LPCWSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 392 {
 393         LPSHELLFOLDER sf;
 394         DWORD pchEaten;
 395         HRESULT ret = E_FAIL;
 396
 397         TRACE_(shell)("%s %p 0x%08lx\n", debugstr_w(path), ppidl, attributes ? *attributes : 0);
 398
 399         if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 400         {
 401           ret = IShellFolder_ParseDisplayName(sf, 0, NULL, (LPWSTR)path, &pchEaten, ppidl, attributes);
 402           IShellFolder_Release(sf);
 403         }
 404         return ret;
 405 }
 406
 407 HRESULT WINAPI SHILCreateFromPathAW (LPCVOID path, LPITEMIDLIST * ppidl, DWORD * attributes)
 408 {
 409         if ( SHELL_OsIsUnicode())
 410           return SHILCreateFromPathW (path, ppidl, attributes);
 411         return SHILCreateFromPathA (path, ppidl, attributes);
 412 }
 413
 414 /*************************************************************************
 415  * SHCloneSpecialIDList      [SHELL32.89]
 416  *
 417  * Create an ItemIDList to one of the special folders.
 418
 419  * PARAMS
 420  *  hwndOwner   [in]
 421  *  nFolder             [in]    CSIDL_xxxxx
 422  *  fCreate             [in]    Create folder if it does not exist
 423  *
 424  * RETURNS
 425  *  Success: The newly created pidl
 426  *  Failure: NULL, if inputs are invalid.
 427  *
 428  * NOTES
 429  *  exported by ordinal.
 430  *  Caller is responsible for deallocating the returned ItemIDList with the
 431  *  shells IMalloc interface, aka ILFree.
 432  */
 433 LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner, DWORD nFolder, BOOL fCreate)
 434 {       LPITEMIDLIST ppidl;
 435         TRACE_(shell)("(hwnd=%p,csidl=0x%lx,%s).\n", hwndOwner, nFolder, fCreate ? "T" : "F");
 436
 437         if (fCreate)
 438           nFolder |= CSIDL_FLAG_CREATE;
 439
 440         SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
 441         return ppidl;
 442 }
 443
 444 /*************************************************************************
 445  * ILGlobalClone             [SHELL32.20]
 446  *
 447  * Clones an ItemIDList using Alloc.
 448  *
 449  * PARAMS
 450  *  pidl       [I]   ItemIDList to clone
 451  *
 452  * RETURNS
 453  *  Newly allocated ItemIDList.
 454  *
 455  * NOTES
 456  *  exported by ordinal.
 457  */
 458 LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
 459 {       DWORD    len;
 460         LPITEMIDLIST  newpidl;
 461
 462         if (!pidl)
 463           return NULL;
 464
 465         len = ILGetSize(pidl);
 466         newpidl = (LPITEMIDLIST)Alloc(len);
 467         if (newpidl)
 468           memcpy(newpidl,pidl,len);
 469
 470         TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 471         pdump(pidl);
 472
 473         return newpidl;
 474 }
 475
 476 /*************************************************************************
 477  * ILIsEqual [SHELL32.21]
 478  *
 479  */
 480 BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 481 {
 482         char    szData1[MAX_PATH];
 483         char    szData2[MAX_PATH];
 484
 485         LPCITEMIDLIST pidltemp1 = pidl1;
 486         LPCITEMIDLIST pidltemp2 = pidl2;
 487
 488         TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 489
 490         /* explorer reads from registry directly (StreamMRU),
 491            so we can only check here */
 492         if ((!pcheck (pidl1)) || (!pcheck (pidl2))) return FALSE;
 493
 494         pdump (pidl1);
 495         pdump (pidl2);
 496
 497         if ( (!pidl1) || (!pidl2) ) return FALSE;
 498
 499         while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 500         {
 501             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 502             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 503
 504             if (strcasecmp ( szData1, szData2 )!=0 )
 505               return FALSE;
 506
 507             pidltemp1 = ILGetNext(pidltemp1);
 508             pidltemp2 = ILGetNext(pidltemp2);
 509         }
 510
 511         if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
 512         {
 513           return TRUE;
 514         }
 515
 516         return FALSE;
 517 }
 518 /*************************************************************************
 519  * ILIsParent                [SHELL32.23]
 520  *
 521  * Verifies that pidlParent is indeed the (immediate) parent of pidlChild.
 522  *
 523  * PARAMS
 524  *  pidlParent [I]
 525  *  pidlChild  [I]
 526  *  bImmediate [I]   only return true if the parent is the direct parent
 527  *                   of the child
 528  *
 529  * RETURNS
 530  *  True if the parent ItemIDlist is a complete part of the child ItemIdList,
 531  *  False otherwise.
 532  *
 533  * NOTES
 534  *  parent = a/b, child = a/b/c -> true, c is in folder a/b
 535  *  child = a/b/c/d -> false if bImmediate is true, d is not in folder a/b
 536  *  child = a/b/c/d -> true if bImmediate is false, d is in a subfolder of a/b
 537  */
 538 BOOL WINAPI ILIsParent(LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
 539 {
 540         char    szData1[MAX_PATH];
 541         char    szData2[MAX_PATH];
 542
 543         LPCITEMIDLIST pParent = pidlParent;
 544         LPCITEMIDLIST pChild = pidlChild;
 545
 546         TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
 547
 548         if (!pParent || !pChild) return FALSE;
 549
 550         while (pParent->mkid.cb && pChild->mkid.cb)
 551         {
 552           _ILSimpleGetText(pParent, szData1, MAX_PATH);
 553           _ILSimpleGetText(pChild, szData2, MAX_PATH);
 554
 555           if (strcasecmp ( szData1, szData2 )!=0 )
 556             return FALSE;
 557
 558           pParent = ILGetNext(pParent);
 559           pChild = ILGetNext(pChild);
 560         }
 561
 562         if ( pParent->mkid.cb || ! pChild->mkid.cb) /* child shorter or has equal length to parent */
 563           return FALSE;
 564
 565         if ( ILGetNext(pChild)->mkid.cb && bImmediate) /* not immediate descent */
 566           return FALSE;
 567
 568         return TRUE;
 569 }
 570
 571 /*************************************************************************
 572  * ILFindChild               [SHELL32.24]
 573  *
 574  *  Compares elements from pidl1 and pidl2.
 575  *
 576  * PARAMS
 577  *  pidl1      [I]
 578  *  pidl2      [I]
 579  *
 580  * RETURNS
 581  *  pidl1 is desktop      pidl2
 582  *  pidl1 shorter pidl2   pointer to first different element of pidl2
 583  *                        if there was at least one equal element
 584  *  pidl2 shorter pidl1   0
 585  *  pidl2 equal pidl1     pointer to last 0x00-element of pidl2
 586  *
 587  * NOTES
 588  *  exported by ordinal.
 589  */
 590 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 591 {
 592         char    szData1[MAX_PATH];
 593         char    szData2[MAX_PATH];
 594
 595         LPCITEMIDLIST pidltemp1 = pidl1;
 596         LPCITEMIDLIST pidltemp2 = pidl2;
 597         LPCITEMIDLIST ret=NULL;
 598
 599         TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 600
 601         /* explorer reads from registry directly (StreamMRU),
 602            so we can only check here */
 603         if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
 604           return FALSE;
 605
 606         pdump (pidl1);
 607         pdump (pidl2);
 608
 609         if ( _ILIsDesktop(pidl1) )
 610         {
 611           ret = pidl2;
 612         }
 613         else
 614         {
 615           while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 616           {
 617             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 618             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 619
 620             if (strcasecmp(szData1,szData2))
 621               break;
 622
 623             pidltemp1 = ILGetNext(pidltemp1);
 624             pidltemp2 = ILGetNext(pidltemp2);
 625             ret = pidltemp2;
 626           }
 627
 628           if (pidltemp1->mkid.cb)
 629           {
 630             ret = NULL; /* elements of pidl1 left*/
 631           }
 632         }
 633         TRACE_(shell)("--- %p\n", ret);
 634         return (LPITEMIDLIST)ret; /* pidl 1 is shorter */
 635 }
 636
 637 /*************************************************************************
 638  * ILCombine                 [SHELL32.25]
 639  *
 640  * Concatenates two complex ItemIDLists.
 641  *
 642  * PARAMS
 643  *  pidl1      [I]   first complex ItemIDLists
 644  *  pidl2      [I]   complex ItemIDLists to append
 645  *
 646  * RETURNS
 647  *  if both pidl's == NULL      NULL
 648  *  if pidl1 == NULL            cloned pidl2
 649  *  if pidl2 == NULL            cloned pidl1
 650  *  otherwise new pidl with pidl2 appended to pidl1
 651  *
 652  * NOTES
 653  *  exported by ordinal.
 654  *  Does not destroy the passed in ItemIDLists!
 655  */
 656 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 657 {
 658         DWORD    len1,len2;
 659         LPITEMIDLIST  pidlNew;
 660
 661         TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
 662
 663         if(!pidl1 && !pidl2) return NULL;
 664
 665         pdump (pidl1);
 666         pdump (pidl2);
 667
 668         if(!pidl1)
 669         {
 670           pidlNew = ILClone(pidl2);
 671           return pidlNew;
 672         }
 673
 674         if(!pidl2)
 675         {
 676           pidlNew = ILClone(pidl1);
 677           return pidlNew;
 678         }
 679
 680         len1  = ILGetSize(pidl1)-2;
 681         len2  = ILGetSize(pidl2);
 682         pidlNew  = SHAlloc(len1+len2);
 683
 684         if (pidlNew)
 685         {
 686           memcpy(pidlNew,pidl1,len1);
 687           memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 688         }
 689
 690         /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 691         return pidlNew;
 692 }
 693
 694 /*************************************************************************
 695  *  SHGetRealIDL [SHELL32.98]
 696  *
 697  * NOTES
 698  */
 699 HRESULT WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPCITEMIDLIST pidlSimple, LPITEMIDLIST *pidlReal)
 700 {
 701         IDataObject* pDataObj;
 702         HRESULT hr = IShellFolder_GetUIObjectOf(lpsf, 0, 1, &pidlSimple, &IID_IDataObject, 0, (LPVOID*)&pDataObj);
 703
 704         if (SUCCEEDED(hr)) {
 705             STGMEDIUM medium;
 706             FORMATETC fmt;
 707
 708             fmt.cfFormat = RegisterClipboardFormatA(CFSTR_SHELLIDLIST);
 709             fmt.ptd = NULL;
 710             fmt.dwAspect = DVASPECT_CONTENT;
 711             fmt.lindex = -1;
 712             fmt.tymed = TYMED_HGLOBAL;
 713
 714             hr = IDataObject_GetData(pDataObj, &fmt, &medium);
 715
 716             IDataObject_Release(pDataObj);
 717
 718             if (SUCCEEDED(hr)) {
 719                 /*assert(pida->cidl==1);*/
 720                 LPIDA pida = (LPIDA)GlobalLock(medium.u.hGlobal);
 721
 722                 LPCITEMIDLIST pidl_folder = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[0]);
 723                 LPCITEMIDLIST pidl_child = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[1]);
 724
 725                 *pidlReal = ILCombine(pidl_folder, pidl_child);
 726
 727                 if (!*pidlReal)
 728                         hr = E_OUTOFMEMORY;
 729
 730                 GlobalUnlock(medium.u.hGlobal);
 731                 GlobalFree(medium.u.hGlobal);
 732             }
 733         }
 734
 735         return hr;
 736 }
 737
 738 /*************************************************************************
 739  *  SHLogILFromFSIL [SHELL32.95]
 740  *
 741  * NOTES
 742  *  pild = CSIDL_DESKTOP        ret = 0
 743  *  pild = CSIDL_DRIVES         ret = 0
 744  */
 745 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 746 {
 747         FIXME("(pidl=%p)\n",pidl);
 748
 749         pdump(pidl);
 750
 751         return 0;
 752 }
 753
 754 /*************************************************************************
 755  * ILGetSize                 [SHELL32.152]
 756  *
 757  * Gets the byte size of an ItemIDList including zero terminator
 758  *
 759  * PARAMS
 760  *  pidl       [I]   ItemIDList
 761  *
 762  * RETURNS
 763  *  size of pidl in bytes
 764  *
 765  * NOTES
 766  *  exported by ordinal
 767  */
 768 UINT WINAPI ILGetSize(LPCITEMIDLIST pidl)
 769 {
 770         LPCSHITEMID si = &(pidl->mkid);
 771         UINT len=0;
 772
 773         if (pidl)
 774         { while (si->cb)
 775           { len += si->cb;
 776             si  = (LPSHITEMID)(((LPBYTE)si)+si->cb);
 777           }
 778           len += 2;
 779         }
 780         TRACE("pidl=%p size=%u\n",pidl, len);
 781         return len;
 782 }
 783
 784 /*************************************************************************
 785  * ILGetNext                 [SHELL32.153]
 786  *
 787  * Gets the next ItemID of an ItemIDList
 788  *
 789  * PARAMS
 790  *  pidl       [I]   ItemIDList
 791  *
 792  * RETURNS
 793  *  null -> null
 794  *  desktop -> null
 795  *  simple pidl -> pointer to 0x0000 element
 796  *
 797  * NOTES
 798  *  exported by ordinal.
 799  */
 800 LPITEMIDLIST WINAPI ILGetNext(LPCITEMIDLIST pidl)
 801 {
 802         WORD len;
 803
 804         TRACE("%p\n", pidl);
 805
 806         if(pidl)
 807         {
 808           len =  pidl->mkid.cb;
 809           if (len)
 810           {
 811             pidl = (LPITEMIDLIST) (((LPBYTE)pidl)+len);
 812             TRACE("-- %p\n", pidl);
 813             return (LPITEMIDLIST)pidl;
 814           }
 815         }
 816         return NULL;
 817 }
 818
 819 /*************************************************************************
 820  * ILAppend                  [SHELL32.154]
 821  *
 822  * Adds the single ItemID item to the ItemIDList indicated by pidl.
 823  * If bEnd is FALSE, inserts the item in the front of the list,
 824  * otherwise it adds the item to the end. (???)
 825  *
 826  * PARAMS
 827  *  pidl       [I]   ItemIDList to extend
 828  *  item       [I]   ItemID to prepend/append
 829  *  bEnd       [I]   Indicates if the item should be appended
 830  *
 831  * NOTES
 832  *  Destroys the passed in idlist! (???)
 833  */
 834 LPITEMIDLIST WINAPI ILAppend(LPITEMIDLIST pidl, LPCITEMIDLIST item, BOOL bEnd)
 835 {
 836         LPITEMIDLIST idlRet;
 837
 838         WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 839
 840         pdump (pidl);
 841         pdump (item);
 842
 843         if (_ILIsDesktop(pidl))
 844         {
 845            idlRet = ILClone(item);
 846            if (pidl)
 847              SHFree (pidl);
 848            return idlRet;
 849         }
 850
 851         if (bEnd)
 852         {
 853           idlRet = ILCombine(pidl, item);
 854         }
 855         else
 856         {
 857           idlRet = ILCombine(item, pidl);
 858         }
 859
 860         SHFree(pidl);
 861         return idlRet;
 862 }
 863
 864 /*************************************************************************
 865  * ILFree                    [SHELL32.155]
 866  *
 867  * Frees memory (if not NULL) allocated by SHMalloc allocator
 868  *
 869  * PARAMS
 870  *  pidl         [I]
 871  *
 872  * NOTES
 873  *  exported by ordinal
 874  */
 875 void WINAPI ILFree(LPITEMIDLIST pidl)
 876 {
 877         TRACE("(pidl=%p)\n",pidl);
 878         if(pidl) SHFree(pidl);
 879 }
 880
 881 /*************************************************************************
 882  * ILGlobalFree              [SHELL32.156]
 883  *
 884  * Frees memory (if not NULL) allocated by Alloc allocator
 885  *
 886  * PARAMS
 887  *  pidl         [I]
 888  *
 889  * NOTES
 890  *  exported by ordinal.
 891  */
 892 void WINAPI ILGlobalFree( LPITEMIDLIST pidl)
 893 {
 894         TRACE("%p\n", pidl);
 895
 896         if(!pidl) return;
 897         Free(pidl);
 898 }
 899
 900 /*************************************************************************
 901  * ILCreateFromPathA         [SHELL32.189]
 902  *
 903  * Creates a complex ItemIDList from a path and returns it.
 904  *
 905  * PARAMS
 906  *  path         [I]
 907  *
 908  * RETURNS
 909  *  the newly created complex ItemIDList or NULL if failed
 910  *
 911  * NOTES
 912  *  exported by ordinal.
 913  */
 914
 915 LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
 916 {
 917         LPITEMIDLIST pidlnew = NULL;
 918
 919         TRACE_(shell)("%s\n", debugstr_a(path));
 920
 921         if (SUCCEEDED(SHILCreateFromPathA(path, &pidlnew, NULL)))
 922           return pidlnew;
 923         return NULL;
 924 }
 925
 926 /*************************************************************************
 927  * ILCreateFromPathW         [SHELL32.190]
 928  */
 929 LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
 930 {
 931         LPITEMIDLIST pidlnew = NULL;
 932
 933         TRACE_(shell)("%s\n", debugstr_w(path));
 934
 935         if (SUCCEEDED(SHILCreateFromPathW(path, &pidlnew, NULL)))
 936           return pidlnew;
 937         return NULL;
 938 }
 939
 940 /*************************************************************************
 941  * ILCreateFromPath          [SHELL32.157]
 942  */
 943 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
 944 {
 945         if ( SHELL_OsIsUnicode())
 946           return ILCreateFromPathW (path);
 947         return ILCreateFromPathA (path);
 948 }
 949
 950 /*************************************************************************
 951  * _ILParsePathW             [internal]
 952  *
 953  * Creates an ItemIDList from a path and returns it.
 954  *
 955  * PARAMS
 956  *  path         [I]   path to parse and convert into an ItemIDList
 957  *  lpFindFile   [I]   pointer to buffer to initialize the FileSystem
 958  *                     Bind Data object with
 959  *  bBindCtx     [I]   indicates to create a BindContext and assign a
 960  *                     FileSystem Bind Data object
 961  *  ppidl        [O]   the newly create ItemIDList
 962  *  prgfInOut    [I/O] requested attributes on input and actual
 963  *                     attributes on return
 964  *
 965  * RETURNS
 966  *  NO_ERROR on success or an OLE error code
 967  *
 968  * NOTES
 969  *  If either lpFindFile is non-NULL or bBindCtx is TRUE, this function
 970  *  creates a BindContext object and assigns a FileSystem Bind Data object
 971  *  to it, passing the BindContext to IShellFolder_ParseDisplayName. Each
 972  *  IShellFolder uses that FileSystem Bind Data object of the BindContext
 973  *  to pass data about the current path element to the next object. This
 974  *  is used to avoid having to verify the current path element on disk, so
 975  *  that creating an ItemIDList from a non-existent path still can work.
 976  */
 977 static HRESULT WINAPI _ILParsePathW(LPCWSTR path, LPWIN32_FIND_DATAW lpFindFile,
 978                              BOOL bBindCtx, LPITEMIDLIST *ppidl, LPDWORD prgfInOut)
 979 {
 980         LPSHELLFOLDER pSF = NULL;
 981         LPBC pBC = NULL;
 982         HRESULT ret;
 983
 984         TRACE("%s %p %d (%p)->%p (%p)->0x%lx\n", debugstr_w(path), lpFindFile, bBindCtx,
 985                                                  ppidl, ppidl ? *ppidl : NULL,
 986                                                  prgfInOut, prgfInOut ? *prgfInOut : 0);
 987
 988         ret = SHGetDesktopFolder(&pSF);
 989         if (FAILED(ret))
 990         {
 991           return ret;
 992         }
 993
 994         if (lpFindFile || bBindCtx)
 995           ret = IFileSystemBindData_Constructor(lpFindFile, &pBC);
 996
 997         if (SUCCEEDED(ret))
 998         {
 999           ret = IShellFolder_ParseDisplayName(pSF, 0, pBC, (LPOLESTR)path, NULL, ppidl, prgfInOut);
1000         }
1001
1002         if (pBC)
1003         {
1004           IBindCtx_Release(pBC);
1005           pBC = NULL;
1006         }
1007
1008         IShellFolder_Release(pSF);
1009
1010         if (!SUCCEEDED(ret) && ppidl)
1011           *ppidl = NULL;
1012
1013         TRACE("%s %p 0x%lx\n", debugstr_w(path), ppidl ? *ppidl : NULL, prgfInOut ? *prgfInOut : 0);
1014
1015         return ret;
1016 }
1017
1018 /*************************************************************************
1019  * SHSimpleIDListFromPath    [SHELL32.162]
1020  *
1021  * Creates a simple ItemIDList from a path and returns it. This function
1022  * does not fail on non-existent paths.
1023  *
1024  * PARAMS
1025  *  path         [I]   path to parse and convert into an ItemIDList
1026  *
1027  * RETURNS
1028  *  the newly created simple ItemIDList
1029  *
1030  * NOTES
1031  *  Simple in the name does not mean a relative ItemIDList but rather a
1032  *  fully qualified list, where only the file name is filled in and the
1033  *  directory flag for those ItemID elements this is known about, eg.
1034  *  it is not the last element in the ItemIDList or the actual directory
1035  *  exists on disk.
1036  *  exported by ordinal.
1037  */
1038 LPITEMIDLIST WINAPI SHSimpleIDListFromPathA(LPCSTR lpszPath)
1039 {
1040     LPITEMIDLIST pidl = NULL;
1041     LPWSTR wPath = NULL;
1042     int len;
1043
1044     TRACE("%s\n", debugstr_a(lpszPath));
1045
1046     if (lpszPath)
1047     {
1048         len = MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, NULL, 0);
1049         wPath = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1050         MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, wPath, len);
1051     }
1052
1053     _ILParsePathW(wPath, NULL, TRUE, &pidl, NULL);
1054
1055     if (wPath) HeapFree(GetProcessHeap(), 0, wPath);
1056     TRACE("%s %p\n", debugstr_a(lpszPath), pidl);
1057     return pidl;
1058 }
1059
1060 LPITEMIDLIST WINAPI SHSimpleIDListFromPathW(LPCWSTR lpszPath)
1061 {
1062         LPITEMIDLIST pidl = NULL;
1063
1064         TRACE("%s\n", debugstr_w(lpszPath));
1065
1066         _ILParsePathW(lpszPath, NULL, TRUE, &pidl, NULL);
1067         TRACE("%s %p\n", debugstr_w(lpszPath), pidl);
1068         return pidl;
1069 }
1070
1071 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW(LPCVOID lpszPath)
1072 {
1073         if ( SHELL_OsIsUnicode())
1074           return SHSimpleIDListFromPathW (lpszPath);
1075         return SHSimpleIDListFromPathA (lpszPath);
1076 }
1077
1078 /*************************************************************************
1079  * SHGetSpecialFolderLocation           [SHELL32.@]
1080  *
1081  * gets the folder locations from the registry and creates a pidl
1082  * creates missing reg keys and directories
1083  *
1084  * PARAMS
1085  *   hwndOwner [I]
1086  *   nFolder   [I] CSIDL_xxxxx
1087  *   ppidl     [O] PIDL of a special folder
1088  *
1089  * NOTES
1090  *   In NT5, SHGetSpecialFolderLocation needs the <winntdir>/Recent
1091  *   directory. If the directory is missing it returns a x80070002.
1092  */
1093 HRESULT WINAPI SHGetSpecialFolderLocation(
1094         HWND hwndOwner,
1095         INT nFolder,
1096         LPITEMIDLIST * ppidl)
1097 {
1098         CHAR            szPath[MAX_PATH];
1099         HRESULT         hr = E_INVALIDARG;
1100
1101         TRACE_(shell)("(%p,0x%x,%p)\n", hwndOwner,nFolder,ppidl);
1102
1103         if (ppidl)
1104         {
1105           *ppidl = NULL;
1106           switch (nFolder)
1107           {
1108             case CSIDL_DESKTOP:
1109               *ppidl = _ILCreateDesktop();
1110               break;
1111
1112             case CSIDL_DRIVES:
1113               *ppidl = _ILCreateMyComputer();
1114               break;
1115
1116             case CSIDL_NETWORK:
1117               *ppidl = _ILCreateNetwork ();
1118               break;
1119
1120             case CSIDL_CONTROLS:
1121               *ppidl = _ILCreateControl ();
1122               break;
1123
1124             case CSIDL_PRINTERS:
1125               *ppidl = _ILCreatePrinter ();
1126               break;
1127
1128             case CSIDL_BITBUCKET:
1129               *ppidl = _ILCreateBitBucket ();
1130               break;
1131
1132             default:
1133               if (SHGetSpecialFolderPathA(hwndOwner, szPath, nFolder, TRUE))
1134               {
1135                 DWORD attributes=0;
1136                 TRACE_(shell)("Value=%s\n",szPath);
1137                 hr = SHILCreateFromPathA(szPath, ppidl, &attributes);
1138               }
1139           }
1140           if(*ppidl) hr = NOERROR;
1141         }
1142
1143         TRACE_(shell)("-- (new pidl %p)\n",*ppidl);
1144         return hr;
1145 }
1146
1147 /*************************************************************************
1148  * SHGetFolderLocation [SHELL32.@]
1149  *
1150  * NOTES
1151  *  the pidl can be a simple one. since we cant get the path out of the pidl
1152  *  we have to take all data from the pidl
1153  */
1154 HRESULT WINAPI SHGetFolderLocation(
1155         HWND hwnd,
1156         int csidl,
1157         HANDLE hToken,
1158         DWORD dwFlags,
1159         LPITEMIDLIST *ppidl)
1160 {
1161         FIXME("%p 0x%08x %p 0x%08lx %p\n",
1162          hwnd, csidl, hToken, dwFlags, ppidl);
1163         return SHGetSpecialFolderLocation(hwnd, csidl, ppidl);
1164 }
1165
1166 /*************************************************************************
1167  * SHGetDataFromIDListA [SHELL32.247]
1168  *
1169  * NOTES
1170  *  the pidl can be a simple one. since we cant get the path out of the pidl
1171  *  we have to take all data from the pidl
1172  */
1173 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
1174 {
1175         TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1176
1177         pdump(pidl);
1178         if (!psf || !dest )  return E_INVALIDARG;
1179
1180         switch (nFormat)
1181         {
1182           case SHGDFIL_FINDDATA:
1183             {
1184                LPSTR filename, shortname;
1185                WIN32_FIND_DATAA * pfd = dest;
1186
1187                if (_ILIsDrive(pidl))
1188                    return E_INVALIDARG;
1189
1190                if (len < (int)sizeof(WIN32_FIND_DATAA)) return E_INVALIDARG;
1191
1192                ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1193                _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1194                pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1195                pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1196
1197                filename = _ILGetTextPointer(pidl);
1198                shortname = _ILGetSTextPointer(pidl);
1199
1200                if (filename)
1201                    lstrcpynA(pfd->cFileName, filename, MAX_PATH);
1202                else
1203                    pfd->cFileName[0] = '\0';
1204
1205                if (shortname)
1206                    lstrcpynA(pfd->cAlternateFileName, shortname, MAX_PATH);
1207                else
1208                    pfd->cAlternateFileName[0] = '\0';
1209             }
1210             return NOERROR;
1211
1212           case SHGDFIL_NETRESOURCE:
1213           case SHGDFIL_DESCRIPTIONID:
1214             FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1215             break;
1216
1217           default:
1218             ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1219         }
1220
1221         return E_INVALIDARG;
1222 }
1223
1224 /*************************************************************************
1225  * SHGetDataFromIDListW [SHELL32.248]
1226  *
1227  */
1228 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
1229 {
1230         TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1231
1232         pdump(pidl);
1233
1234         if (! psf || !dest )  return E_INVALIDARG;
1235
1236         switch (nFormat)
1237         {
1238           case SHGDFIL_FINDDATA:
1239             {
1240                LPSTR filename, shortname;
1241                WIN32_FIND_DATAW * pfd = dest;
1242
1243                if (_ILIsDrive(pidl))
1244                    return E_INVALIDARG;
1245
1246                if (len < (int)sizeof(WIN32_FIND_DATAW)) return E_INVALIDARG;
1247
1248                ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1249                _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1250                pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1251                pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1252
1253                filename = _ILGetTextPointer(pidl);
1254                shortname = _ILGetSTextPointer(pidl);
1255
1256                if (!filename)
1257                    pfd->cFileName[0] = '\0';
1258                else if (!MultiByteToWideChar(CP_ACP, 0, filename, -1, pfd->cFileName, MAX_PATH))
1259                    pfd->cFileName[MAX_PATH-1] = 0;
1260
1261                if (!shortname)
1262                    pfd->cAlternateFileName[0] = '\0';
1263                else if (!MultiByteToWideChar(CP_ACP, 0, shortname, -1, pfd->cAlternateFileName, 14))
1264                    pfd->cAlternateFileName[13] = 0;
1265             }
1266             return NOERROR;
1267           case SHGDFIL_NETRESOURCE:
1268           case SHGDFIL_DESCRIPTIONID:
1269             FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1270             break;
1271
1272           default:
1273             ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1274         }
1275
1276         return E_INVALIDARG;
1277 }
1278
1279 /*************************************************************************
1280  * SHELL_GetPathFromIDListA
1281  */
1282 HRESULT SHELL_GetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath, UINT uOutSize)
1283 {
1284         HRESULT hr = S_OK;
1285
1286         pszPath[0]=0;
1287
1288         /* One case is a PIDL rooted at desktop level */
1289         if (_ILIsValue(pidl) || _ILIsFolder(pidl)) {
1290             hr = SHGetSpecialFolderPathA(0, pszPath, CSIDL_DESKTOP, FALSE);
1291
1292             if (SUCCEEDED(hr))
1293                 PathAddBackslashA(pszPath);
1294         }
1295         /* The only other valid case is a item ID list beginning at "My Computer" */
1296         else if (_ILIsMyComputer(pidl))
1297             pidl = ILGetNext(pidl);
1298
1299         if (SUCCEEDED(hr)) {
1300             LPSTR txt;
1301
1302             while(pidl && pidl->mkid.cb) {
1303                 if (_ILIsSpecialFolder(pidl))
1304                     {hr = E_INVALIDARG; break;}
1305
1306                 txt = _ILGetTextPointer(pidl);
1307                 if (!txt)
1308                     {hr = E_INVALIDARG; break;}
1309
1310                 if (lstrlenA(txt) > pidl->mkid.cb)
1311                     ERR("pidl %p is borked\n",pidl);
1312
1313                 /* make sure there's enough space for the next segment */
1314                 if ( (lstrlenA(txt) + lstrlenA(pszPath)) > uOutSize)
1315                     {hr = E_INVALIDARG; break;}
1316                 lstrcatA( pszPath, txt );
1317
1318                 pidl = ILGetNext(pidl);
1319                 if (!pidl)
1320                     {hr = E_INVALIDARG; break;}
1321
1322                 if (!pidl->mkid.cb) {
1323                     /* We are at the end and successfully converted the complete PIDL. */
1324                     break;
1325                 }
1326
1327                 if( (lstrlenA(pszPath) + 1) > uOutSize)
1328                     {hr = E_INVALIDARG; break;}
1329                 if (!PathAddBackslashA(pszPath))
1330                     {hr = E_INVALIDARG; break;}
1331             }
1332         } else
1333             hr = E_INVALIDARG;
1334
1335         TRACE_(shell)("-- %s, 0x%08lx\n", pszPath, hr);
1336         return hr;
1337 }
1338
1339 /*************************************************************************
1340  * SHGetPathFromIDListA         [SHELL32.@][NT 4.0: SHELL32.220]
1341  *
1342  * PARAMETERS
1343  *  pidl,   [IN] pidl
1344  *  pszPath [OUT] path
1345  *
1346  * RETURNS
1347  *  path from a passed PIDL.
1348  *
1349  * NOTES
1350  *      NULL returns FALSE
1351  *      desktop pidl gives path to desktop directory back
1352  *      special pidls returning FALSE
1353  */
1354 BOOL WINAPI SHGetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath)
1355 {
1356         HRESULT hr;
1357
1358         TRACE_(shell)("(pidl=%p,%p)\n",pidl,pszPath);
1359         pdump(pidl);
1360
1361         if (!pidl)
1362             return FALSE;
1363
1364         hr = SHELL_GetPathFromIDListA(pidl, pszPath, MAX_PATH);
1365
1366         return SUCCEEDED(hr);
1367 }
1368
1369 /*************************************************************************
1370  * SHELL_GetPathFromIDListW
1371  */
1372 HRESULT SHELL_GetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath, UINT uOutSize)
1373 {
1374         HRESULT hr = S_OK;
1375         UINT len;
1376
1377         pszPath[0]=0;
1378
1379         /* One case is a PIDL rooted at desktop level */
1380         if (_ILIsValue(pidl) || _ILIsFolder(pidl)) {
1381             hr = SHGetSpecialFolderPathW(0, pszPath, CSIDL_DESKTOP, FALSE);
1382
1383             if (SUCCEEDED(hr))
1384                 PathAddBackslashW(pszPath);
1385         }
1386         /* The only other valid case is a item ID list beginning at "My Computer" */
1387         else if (_ILIsMyComputer(pidl))
1388             pidl = ILGetNext(pidl);
1389
1390         if (SUCCEEDED(hr)) {
1391             LPSTR txt;
1392
1393             while(pidl && pidl->mkid.cb) {
1394                 if (_ILIsSpecialFolder(pidl))
1395                     {hr = E_INVALIDARG; break;}
1396
1397                 txt = _ILGetTextPointer(pidl);
1398                 if (!txt)
1399                     {hr = E_INVALIDARG; break;}
1400
1401                 if (lstrlenA(txt) > pidl->mkid.cb)
1402                     ERR("pidl %p is borked\n",pidl);
1403                 len = MultiByteToWideChar(CP_ACP, 0, txt, -1, NULL, 0);
1404                 if ( (lstrlenW(pszPath) + len) > uOutSize )
1405                     {hr = E_INVALIDARG; break;}
1406
1407                 MultiByteToWideChar(CP_ACP, 0, txt, -1,
1408                                     &pszPath[lstrlenW(pszPath)], len);
1409
1410                 pidl = ILGetNext(pidl);
1411                 if (!pidl)
1412                     {hr = E_INVALIDARG; break;}
1413
1414                 if (!pidl->mkid.cb) {
1415                     /* We are at the end and successfully converted the complete PIDL. */
1416                     break;
1417                 }
1418
1419                 if ( (lstrlenW(pszPath) + 1) > uOutSize )
1420                     {hr = E_INVALIDARG; break;}
1421                 if (!PathAddBackslashW(pszPath))
1422                     {hr = E_INVALIDARG; break;}
1423             }
1424         } else
1425             hr = E_INVALIDARG;
1426
1427     TRACE_(shell)("-- %s, 0x%08lx\n", debugstr_w(pszPath), hr);
1428     return hr;
1429 }
1430
1431 /*************************************************************************
1432  * SHGetPathFromIDListW                         [SHELL32.@]
1433  */
1434 BOOL WINAPI SHGetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath)
1435 {
1436         HRESULT hr;
1437
1438         TRACE_(shell)("(pidl=%p,%p)\n", pidl, debugstr_w(pszPath));
1439         pdump(pidl);
1440
1441         if (!pidl)
1442             return FALSE;
1443
1444         hr = SHELL_GetPathFromIDListW(pidl, pszPath, MAX_PATH);
1445
1446         TRACE_(shell)("-- %s, 0x%08lx\n",debugstr_w(pszPath), hr);
1447         return SUCCEEDED(hr);
1448 }
1449
1450 /*************************************************************************
1451  * SHGetPathFromIDList          [SHELL32.@][NT 4.0: SHELL32.219]
1452  */
1453 BOOL WINAPI SHGetPathFromIDListAW(LPCITEMIDLIST pidl,LPVOID pszPath)
1454 {
1455         TRACE_(shell)("(pidl=%p,%p)\n",pidl,pszPath);
1456
1457         if (SHELL_OsIsUnicode())
1458           return SHGetPathFromIDListW(pidl,pszPath);
1459         return SHGetPathFromIDListA(pidl,pszPath);
1460 }
1461
1462 /*************************************************************************
1463  *      SHBindToParent          [shell version 5.0]
1464  */
1465 HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
1466 {
1467         IShellFolder    * psf;
1468         LPITEMIDLIST    pidlChild, pidlParent;
1469         HRESULT         hr=E_FAIL;
1470
1471         TRACE_(shell)("pidl=%p\n", pidl);
1472         pdump(pidl);
1473
1474         *ppv = NULL;
1475         if (ppidlLast) *ppidlLast = NULL;
1476
1477         if (_ILIsPidlSimple(pidl))
1478         {
1479           /* we are on desktop level */
1480           if (ppidlLast)
1481             *ppidlLast = ILClone(pidl);
1482           hr = SHGetDesktopFolder((IShellFolder**)ppv);
1483         }
1484         else
1485         {
1486           pidlChild =  ILClone(ILFindLastID(pidl));
1487           pidlParent = ILClone(pidl);
1488           ILRemoveLastID(pidlParent);
1489
1490           hr = SHGetDesktopFolder(&psf);
1491
1492           if (SUCCEEDED(hr))
1493             hr = IShellFolder_BindToObject(psf, pidlParent, NULL, riid, ppv);
1494
1495           if (SUCCEEDED(hr) && ppidlLast)
1496             *ppidlLast = pidlChild;
1497           else
1498             ILFree (pidlChild);
1499
1500           SHFree (pidlParent);
1501           if (psf) IShellFolder_Release(psf);
1502         }
1503
1504
1505         TRACE_(shell)("-- psf=%p pidl=%p ret=0x%08lx\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
1506         return hr;
1507 }
1508
1509 /**************************************************************************
1510  *
1511  *              internal functions
1512  *
1513  *      ### 1. section creating pidls ###
1514  *
1515  *************************************************************************
1516  *  _ILCreateDesktop()
1517  *  _ILCreateIExplore()
1518  *  _ILCreateMyComputer()
1519  *  _ILCreateDrive()
1520  *  _ILCreateFolder()
1521  *  _ILCreateValue()
1522  */
1523 LPITEMIDLIST _ILCreateDesktop()
1524 {       TRACE("()\n");
1525         return _ILCreate(PT_DESKTOP, NULL, 0);
1526 }
1527
1528 LPITEMIDLIST _ILCreateMyComputer()
1529 {       TRACE("()\n");
1530         return _ILCreate(PT_MYCOMP, &CLSID_MyComputer, sizeof(GUID));
1531 }
1532
1533 LPITEMIDLIST _ILCreateIExplore()
1534 {       TRACE("()\n");
1535         return _ILCreate(PT_MYCOMP, &CLSID_Internet, sizeof(GUID));
1536 }
1537
1538 LPITEMIDLIST _ILCreateControl()
1539 {       TRACE("()\n");
1540         return _ILCreate(PT_SPECIAL, &CLSID_ControlPanel, sizeof(GUID));
1541 }
1542
1543 LPITEMIDLIST _ILCreatePrinter()
1544 {       TRACE("()\n");
1545         return _ILCreate(PT_SPECIAL, &CLSID_Printers, sizeof(GUID));
1546 }
1547
1548 LPITEMIDLIST _ILCreateNetwork()
1549 {       TRACE("()\n");
1550         return _ILCreate(PT_MYCOMP, &CLSID_NetworkPlaces, sizeof(GUID));
1551 }
1552
1553 LPITEMIDLIST _ILCreateBitBucket()
1554 {       TRACE("()\n");
1555         return _ILCreate(PT_MYCOMP, &CLSID_RecycleBin, sizeof(GUID));
1556 }
1557
1558 LPITEMIDLIST _ILCreateDrive( LPCSTR lpszNew)
1559 {       char sTemp[4];
1560         lstrcpynA (sTemp,lpszNew,4);
1561         sTemp[2]='\\';
1562         sTemp[3]=0x00;
1563         TRACE("(%s)\n",sTemp);
1564         return _ILCreate(PT_DRIVE,(LPVOID)&sTemp[0],4);
1565 }
1566
1567 LPITEMIDLIST _ILCreateFolder( WIN32_FIND_DATAA * stffile )
1568 {
1569         char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1570         char *  pbuff = buff;
1571         ULONG   len, len1;
1572         LPITEMIDLIST pidl;
1573
1574         TRACE("(%s, %s)\n",stffile->cAlternateFileName, stffile->cFileName);
1575
1576         /* prepare buffer with both names */
1577         len = strlen (stffile->cFileName) + 1;
1578         memcpy (pbuff, stffile->cFileName, len);
1579         pbuff += len;
1580
1581         if (stffile->cAlternateFileName)
1582         {
1583           len1 = strlen (stffile->cAlternateFileName)+1;
1584           memcpy (pbuff, stffile->cAlternateFileName, len1);
1585         }
1586         else
1587         {
1588           len1 = 1;
1589           *pbuff = 0x00;
1590         }
1591
1592         pidl = _ILCreate(PT_FOLDER, (LPVOID)buff, len + len1);
1593
1594         /* set attributes */
1595         if (pidl)
1596         {
1597           LPPIDLDATA pData;
1598           pData = _ILGetDataPointer(pidl);
1599           FileTimeToDosDateTime(&(stffile->ftLastWriteTime),&pData->u.folder.uFileDate,&pData->u.folder.uFileTime);
1600           pData->u.folder.dwFileSize = stffile->nFileSizeLow;
1601           pData->u.folder.uFileAttribs = stffile->dwFileAttributes;
1602         }
1603
1604         return pidl;
1605 }
1606
1607 LPITEMIDLIST _ILCreateValue(WIN32_FIND_DATAA * stffile)
1608 {
1609         char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1610         char *  pbuff = buff;
1611         ULONG   len, len1;
1612         LPITEMIDLIST pidl;
1613
1614         TRACE("(%s, %s)\n",stffile->cAlternateFileName, stffile->cFileName);
1615
1616         /* prepare buffer with both names */
1617         len = strlen (stffile->cFileName) + 1;
1618         memcpy (pbuff, stffile->cFileName, len);
1619         pbuff += len;
1620
1621         if (stffile->cAlternateFileName)
1622         {
1623           len1 = strlen (stffile->cAlternateFileName)+1;
1624           memcpy (pbuff, stffile->cAlternateFileName, len1);
1625         }
1626         else
1627         {
1628           len1 = 1;
1629           *pbuff = 0x00;
1630         }
1631
1632         pidl = _ILCreate(PT_VALUE, (LPVOID)buff, len + len1);
1633
1634         /* set attributes */
1635         if (pidl)
1636         {
1637           LPPIDLDATA pData;
1638           pData = _ILGetDataPointer(pidl);
1639           FileTimeToDosDateTime(&(stffile->ftLastWriteTime),&pData->u.folder.uFileDate,&pData->u.folder.uFileTime);
1640           pData->u.folder.dwFileSize = stffile->nFileSizeLow;
1641           pData->u.folder.uFileAttribs=stffile->dwFileAttributes;
1642         }
1643
1644         return pidl;
1645 }
1646
1647 LPITEMIDLIST _ILCreateFromPathA(LPCSTR szPath)
1648 {
1649         HANDLE hFile;
1650         WIN32_FIND_DATAA stffile;
1651         LPITEMIDLIST pidl = NULL;
1652
1653         hFile = FindFirstFileA(szPath, &stffile);
1654         if (hFile != INVALID_HANDLE_VALUE)
1655         {
1656           if (stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1657             pidl = _ILCreateFolder(&stffile);
1658           else
1659             pidl = _ILCreateValue(&stffile);
1660           FindClose(hFile);
1661         }
1662         return pidl;
1663 }
1664
1665 LPITEMIDLIST _ILCreateSpecial(LPCSTR szGUID)
1666 {
1667         IID iid;
1668
1669         if (!SUCCEEDED(SHCLSIDFromStringA(szGUID, &iid)))
1670         {
1671           ERR("%s is not a GUID\n", szGUID);
1672           return NULL;
1673         }
1674         return _ILCreate(PT_MYCOMP, &iid, sizeof(IID));
1675 }
1676
1677 /**************************************************************************
1678  *  _ILCreate()
1679  *  Creates a new PIDL
1680  *  type = PT_DESKTOP | PT_DRIVE | PT_FOLDER | PT_VALUE
1681  *  pIn = data
1682  *  uInSize = size of data (raw)
1683  */
1684
1685 LPITEMIDLIST _ILCreate(PIDLTYPE type, LPCVOID pIn, UINT uInSize)
1686 {
1687         LPITEMIDLIST   pidlOut = NULL, pidlTemp = NULL;
1688         LPPIDLDATA     pData;
1689         UINT           uSize = 0;
1690         LPSTR   pszDest;
1691
1692         TRACE("(0x%02x %p %i)\n",type,pIn,uInSize);
1693
1694         switch (type)
1695         {
1696           case PT_DESKTOP:
1697             uSize = 0;
1698             break;
1699           case PT_SPECIAL:
1700           case PT_MYCOMP:
1701             uSize = 2 + 2 + sizeof(GUID);
1702             break;
1703           case PT_DRIVE:
1704             uSize = 2 + 23;
1705             break;
1706           case PT_FOLDER:
1707           case PT_VALUE:
1708             uSize = 2 + 12 + uInSize;
1709             break;
1710           default:
1711             FIXME("can't create type: 0x%08x\n",type);
1712             return NULL;
1713         }
1714
1715         if(!(pidlOut = SHAlloc(uSize + 2))) return NULL;
1716         ZeroMemory(pidlOut, uSize + 2);
1717         pidlOut->mkid.cb = uSize;
1718
1719         switch (type)
1720         {
1721           case PT_DESKTOP:
1722             TRACE("- create Desktop\n");
1723             break;
1724
1725           case PT_SPECIAL:
1726           case PT_MYCOMP:
1727             pData = _ILGetDataPointer(pidlOut);
1728             pData->type = type;
1729             memcpy(&(pData->u.mycomp.guid), pIn, uInSize);
1730             TRACE("-- create GUID-pidl %s\n", debugstr_guid(&(pData->u.mycomp.guid)));
1731             break;
1732
1733           case PT_DRIVE:
1734             pData = _ILGetDataPointer(pidlOut);
1735             pData->type = type;
1736             pszDest = _ILGetTextPointer(pidlOut);
1737             memcpy(pszDest, pIn, uInSize);
1738             TRACE("-- create Drive: %s\n",debugstr_a(pszDest));
1739             break;
1740
1741           case PT_FOLDER:
1742           case PT_VALUE:
1743             pData = _ILGetDataPointer(pidlOut);
1744             pData->type = type;
1745             pszDest =  _ILGetTextPointer(pidlOut);
1746             memcpy(pszDest, pIn, uInSize);
1747             TRACE("-- create Value: %s\n",debugstr_a(pszDest));
1748             break;
1749         }
1750
1751         pidlTemp = ILGetNext(pidlOut);
1752         if (pidlTemp)
1753           pidlTemp->mkid.cb = 0x00;
1754
1755         TRACE("-- (pidl=%p, size=%u)\n", pidlOut, uSize);
1756         return pidlOut;
1757 }
1758
1759 /**************************************************************************
1760  *  _ILGetDrive()
1761  *
1762  *  Gets the text for the drive eg. 'c:\'
1763  *
1764  * RETURNS
1765  *  strlen (lpszText)
1766  */
1767 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1768 {       TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1769
1770         if(_ILIsMyComputer(pidl))
1771           pidl = ILGetNext(pidl);
1772
1773         if (pidl && _ILIsDrive(pidl))
1774           return _ILSimpleGetText(pidl, pOut, uSize);
1775
1776         return 0;
1777 }
1778
1779 /**************************************************************************
1780  *
1781  *      ### 2. section testing pidls ###
1782  *
1783  **************************************************************************
1784  *  _ILIsDesktop()
1785  *  _ILIsMyComputer()
1786  *  _ILIsSpecialFolder()
1787  *  _ILIsDrive()
1788  *  _ILIsFolder()
1789  *  _ILIsValue()
1790  *  _ILIsPidlSimple()
1791  */
1792 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1793 {       TRACE("(%p)\n",pidl);
1794         return pidl && pidl->mkid.cb  ? 0 : 1;
1795 }
1796
1797 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1798 {
1799         REFIID iid = _ILGetGUIDPointer(pidl);
1800
1801         TRACE("(%p)\n",pidl);
1802
1803         if (iid)
1804           return IsEqualIID(iid, &CLSID_MyComputer);
1805         return FALSE;
1806 }
1807
1808 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1809 {
1810         LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1811         TRACE("(%p)\n",pidl);
1812         return (pidl && ( (lpPData && (PT_MYCOMP== lpPData->type || PT_SPECIAL== lpPData->type)) ||
1813                           (pidl && pidl->mkid.cb == 0x00)
1814                         ));
1815 }
1816
1817 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1818 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1819         TRACE("(%p)\n",pidl);
1820         return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1821                                     PT_DRIVE1 == lpPData->type ||
1822                                     PT_DRIVE2 == lpPData->type ||
1823                                     PT_DRIVE3 == lpPData->type));
1824 }
1825
1826 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1827 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1828         TRACE("(%p)\n",pidl);
1829         return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1830 }
1831
1832 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1833 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1834         TRACE("(%p)\n",pidl);
1835         return (pidl && lpPData && PT_VALUE == lpPData->type);
1836 }
1837
1838 /**************************************************************************
1839  *      _ILIsPidlSimple
1840  */
1841 BOOL _ILIsPidlSimple ( LPCITEMIDLIST pidl)
1842 {
1843         BOOL ret = TRUE;
1844
1845         if(! _ILIsDesktop(pidl))        /* pidl=NULL or mkid.cb=0 */
1846         {
1847           WORD len = pidl->mkid.cb;
1848           LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((LPBYTE)pidl) + len );
1849           if (pidlnext->mkid.cb)
1850             ret = FALSE;
1851         }
1852
1853         TRACE("%s\n", ret ? "Yes" : "No");
1854         return ret;
1855 }
1856
1857 /**************************************************************************
1858  *
1859  *      ### 3. section getting values from pidls ###
1860  */
1861
1862  /**************************************************************************
1863  *  _ILSimpleGetText
1864  *
1865  * gets the text for the first item in the pidl (eg. simple pidl)
1866  *
1867  * returns the length of the string
1868  */
1869 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
1870 {
1871         DWORD           dwReturn=0;
1872         LPSTR           szSrc;
1873         GUID const *    riid;
1874         char szTemp[MAX_PATH];
1875
1876         TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1877
1878         if (!pidl) return 0;
1879
1880         if (szOut)
1881           *szOut = 0;
1882
1883         if (_ILIsDesktop(pidl))
1884         {
1885          /* desktop */
1886           if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1887           {
1888             if (szOut)
1889               lstrcpynA(szOut, szTemp, uOutSize);
1890
1891             dwReturn = strlen (szTemp);
1892           }
1893         }
1894         else if (( szSrc = _ILGetTextPointer(pidl) ))
1895         {
1896           /* filesystem */
1897           if (szOut)
1898             lstrcpynA(szOut, szSrc, uOutSize);
1899
1900           dwReturn = strlen(szSrc);
1901         }
1902         else if (( riid = _ILGetGUIDPointer(pidl) ))
1903         {
1904           /* special folder */
1905           if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
1906           {
1907             if (szOut)
1908               lstrcpynA(szOut, szTemp, uOutSize);
1909
1910             dwReturn = strlen (szTemp);
1911           }
1912         }
1913         else
1914         {
1915           ERR("-- no text\n");
1916         }
1917
1918         TRACE("-- (%p=%s 0x%08lx)\n",szOut,debugstr_a(szOut),dwReturn);
1919         return dwReturn;
1920 }
1921
1922  /**************************************************************************
1923  *  _ILSimpleGetTextW
1924  *
1925  * gets the text for the first item in the pidl (eg. simple pidl)
1926  *
1927  * returns the length of the string
1928  */
1929 DWORD _ILSimpleGetTextW (LPCITEMIDLIST pidl, LPWSTR szOut, UINT uOutSize)
1930 {
1931         DWORD   dwReturn;
1932         char    szTemp[MAX_PATH];
1933
1934         TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1935
1936         dwReturn = _ILSimpleGetText(pidl, szTemp, uOutSize);
1937
1938         if (!MultiByteToWideChar(CP_ACP, 0, szTemp, -1, szOut, MAX_PATH))
1939                 *szOut = 0;
1940
1941         TRACE("-- (%p=%s 0x%08lx)\n",szOut,debugstr_w(szOut),dwReturn);
1942         return dwReturn;
1943 }
1944
1945 /**************************************************************************
1946  *
1947  *      ### 4. getting pointers to parts of pidls ###
1948  *
1949  **************************************************************************
1950  *  _ILGetDataPointer()
1951  */
1952 LPPIDLDATA _ILGetDataPointer(LPCITEMIDLIST pidl)
1953 {
1954         if(pidl && pidl->mkid.cb != 0x00)
1955           return (LPPIDLDATA) &(pidl->mkid.abID);
1956         return NULL;
1957 }
1958
1959 /**************************************************************************
1960  *  _ILGetTextPointer()
1961  * gets a pointer to the long filename string stored in the pidl
1962  */
1963 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
1964 {/*     TRACE(pidl,"(pidl%p)\n", pidl);*/
1965
1966         LPPIDLDATA pdata = _ILGetDataPointer(pidl);
1967
1968         if (pdata)
1969         {
1970           switch (pdata->type)
1971           {
1972             case PT_MYCOMP:
1973             case PT_SPECIAL:
1974               return NULL;
1975
1976             case PT_DRIVE:
1977             case PT_DRIVE1:
1978             case PT_DRIVE2:
1979             case PT_DRIVE3:
1980               return (LPSTR)&(pdata->u.drive.szDriveName);
1981
1982             case PT_FOLDER:
1983             case PT_FOLDER1:
1984             case PT_VALUE:
1985             case PT_IESPECIAL1:
1986             case PT_RAS_FOLDER:
1987             case PT_IESPECIAL2:
1988               return (LPSTR)&(pdata->u.file.szNames);
1989
1990             case PT_WORKGRP:
1991             case PT_COMP:
1992             case PT_NETWORK:
1993             case PT_NETPROVIDER:
1994             case PT_SHARE:
1995               return (LPSTR)&(pdata->u.network.szNames);
1996           }
1997         }
1998         return NULL;
1999 }
2000
2001 /**************************************************************************
2002  *  _ILGetSTextPointer()
2003  * gets a pointer to the short filename string stored in the pidl
2004  */
2005 LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
2006 {/*     TRACE(pidl,"(pidl%p)\n", pidl);*/
2007
2008         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2009
2010         if (pdata)
2011         {
2012           switch (pdata->type)
2013           {
2014             case PT_FOLDER:
2015             case PT_VALUE:
2016             case PT_IESPECIAL1:
2017             case PT_RAS_FOLDER:
2018             case PT_IESPECIAL2:
2019               return (LPSTR)(pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1);
2020
2021             case PT_WORKGRP:
2022               return (LPSTR)(pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1);
2023           }
2024         }
2025         return NULL;
2026 }
2027
2028 /**************************************************************************
2029  * _ILGetGUIDPointer()
2030  *
2031  * returns reference to guid stored in some pidls
2032  */
2033 REFIID _ILGetGUIDPointer(LPCITEMIDLIST pidl)
2034 {
2035         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2036
2037         TRACE("%p\n", pidl);
2038
2039         if (pdata)
2040         {
2041           TRACE("pdata->type 0x%04x\n", pdata->type);
2042           switch (pdata->type)
2043           {
2044             case PT_SPECIAL:
2045             case PT_MYCOMP:
2046               return (REFIID) &(pdata->u.mycomp.guid);
2047
2048             default:
2049                 TRACE("Unknown pidl type 0x%04x\n", pdata->type);
2050                 break;
2051           }
2052         }
2053         return NULL;
2054 }
2055
2056 /*************************************************************************
2057  * _ILGetFileDateTime
2058  *
2059  * Given the ItemIdList, get the FileTime
2060  *
2061  * PARAMS
2062  *      pidl        [I] The ItemIDList
2063  *      pFt         [I] the resulted FILETIME of the file
2064  *
2065  * RETURNS
2066  *     True if Successful
2067  *
2068  * NOTES
2069  *
2070  */
2071 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
2072 {
2073     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2074
2075     if(! pdata) return FALSE;
2076
2077     switch (pdata->type)
2078     {
2079         case PT_FOLDER:
2080             DosDateTimeToFileTime(pdata->u.folder.uFileDate, pdata->u.folder.uFileTime, pFt);
2081             break;
2082         case PT_VALUE:
2083             DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
2084             break;
2085         default:
2086             return FALSE;
2087     }
2088     return TRUE;
2089 }
2090
2091 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2092 {
2093         FILETIME ft,lft;
2094         SYSTEMTIME time;
2095         BOOL ret;
2096
2097         if (_ILGetFileDateTime( pidl, &ft )) {
2098             FileTimeToLocalFileTime(&ft, &lft);
2099             FileTimeToSystemTime (&lft, &time);
2100             ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
2101         } else {
2102             pOut[0] = '\0';
2103             ret = FALSE;
2104         }
2105         return ret;
2106
2107 }
2108
2109 /*************************************************************************
2110  * _ILGetFileSize
2111  *
2112  * Given the ItemIdList, get the FileSize
2113  *
2114  * PARAMS
2115  *      pidl    [I] The ItemIDList
2116  *      pOut    [I] The buffer to save the result
2117  *      uOutsize [I] The size of the buffer
2118  *
2119  * RETURNS
2120  *     The FileSize
2121  *
2122  * NOTES
2123  *      pOut can be null when no string is needed
2124  *
2125  */
2126 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2127 {
2128         LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2129         DWORD dwSize;
2130
2131         if(! pdata) return 0;
2132
2133         switch (pdata->type)
2134         {
2135           case PT_VALUE:
2136             dwSize = pdata->u.file.dwFileSize;
2137             if (pOut) StrFormatByteSizeA(dwSize, pOut, uOutSize);
2138             return dwSize;
2139         }
2140         if (pOut) *pOut = 0x00;
2141         return 0;
2142 }
2143
2144 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2145 {
2146         char szTemp[MAX_PATH];
2147         const char * pPoint;
2148         LPCITEMIDLIST  pidlTemp=pidl;
2149
2150         TRACE("pidl=%p\n",pidl);
2151
2152         if (!pidl) return FALSE;
2153
2154         pidlTemp = ILFindLastID(pidl);
2155
2156         if (!_ILIsValue(pidlTemp)) return FALSE;
2157         if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH)) return FALSE;
2158
2159         pPoint = PathFindExtensionA(szTemp);
2160
2161         if (! *pPoint) return FALSE;
2162
2163         pPoint++;
2164         lstrcpynA(pOut, pPoint, uOutSize);
2165         TRACE("%s\n",pOut);
2166
2167         return TRUE;
2168 }
2169
2170 /*************************************************************************
2171  * _ILGetFileType
2172  *
2173  * Given the ItemIdList, get the file type description
2174  *
2175  * PARAMS
2176  *      pidl        [I] The ItemIDList (simple)
2177  *      pOut        [I] The buffer to save the result
2178  *      uOutsize    [I] The size of the buffer
2179  *
2180  * RETURNS
2181  *      nothing
2182  *
2183  * NOTES
2184  *      This function copies as much as possible into the buffer.
2185  */
2186 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2187 {
2188         if(_ILIsValue(pidl))
2189         {
2190           char sTemp[64];
2191           if(uOutSize > 0)
2192           {
2193             pOut[0] = 0;
2194           }
2195           if (_ILGetExtension (pidl, sTemp, 64))
2196           {
2197             if (!( HCR_MapTypeToValueA(sTemp, sTemp, 64, TRUE)
2198                 && HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE )))
2199             {
2200               lstrcpynA (pOut, sTemp, uOutSize - 6);
2201               strcat (pOut, "-file");
2202             }
2203           }
2204         }
2205         else
2206         {
2207           lstrcpynA(pOut, "Folder", uOutSize);
2208         }
2209 }
2210
2211 /*************************************************************************
2212  * _ILGetFileAttributes
2213  *
2214  * Given the ItemIdList, get the Attrib string format
2215  *
2216  * PARAMS
2217  *      pidl        [I] The ItemIDList
2218  *      pOut        [I] The buffer to save the result
2219  *      uOutsize    [I] The size of the Buffer
2220  *
2221  * RETURNS
2222  *     Attributes
2223  *
2224  * FIXME
2225  *  return value 0 in case of error is a valid return value
2226  *
2227  */
2228 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2229 {
2230         LPPIDLDATA pData = _ILGetDataPointer(pidl);
2231         WORD wAttrib = 0;
2232         int i;
2233
2234         if(! pData) return 0;
2235
2236         switch(pData->type)
2237         {
2238           case PT_FOLDER:
2239             wAttrib = pData->u.folder.uFileAttribs;
2240             break;
2241           case PT_VALUE:
2242             wAttrib = pData->u.file.uFileAttribs;
2243             break;
2244         }
2245
2246         if(uOutSize >= 6)
2247         {
2248           i=0;
2249           if(wAttrib & FILE_ATTRIBUTE_READONLY)
2250           {
2251             pOut[i++] = 'R';
2252           }
2253           if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
2254           {
2255             pOut[i++] = 'H';
2256           }
2257           if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
2258           {
2259             pOut[i++] = 'S';
2260           }
2261           if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
2262           {
2263             pOut[i++] = 'A';
2264           }
2265           if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
2266           {
2267             pOut[i++] = 'C';
2268           }
2269           pOut[i] = 0x00;
2270         }
2271         return wAttrib;
2272 }
2273
2274 /*************************************************************************
2275 * ILFreeaPidl
2276 *
2277 * free a aPidl struct
2278 */
2279 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
2280 {
2281         UINT   i;
2282
2283         if (apidl)
2284         {
2285           for (i = 0; i < cidl; i++) SHFree(apidl[i]);
2286           SHFree(apidl);
2287         }
2288 }
2289
2290 /*************************************************************************
2291 * ILCopyaPidl
2292 *
2293 * copies an aPidl struct
2294 */
2295 LPITEMIDLIST* _ILCopyaPidl(LPCITEMIDLIST * apidlsrc, UINT cidl)
2296 {
2297         UINT i;
2298         LPITEMIDLIST * apidldest = (LPITEMIDLIST*)SHAlloc(cidl * sizeof(LPITEMIDLIST));
2299         if(!apidlsrc) return NULL;
2300
2301         for (i = 0; i < cidl; i++)
2302           apidldest[i] = ILClone(apidlsrc[i]);
2303
2304         return apidldest;
2305 }
2306
2307 /*************************************************************************
2308 * _ILCopyCidaToaPidl
2309 *
2310 * creates aPidl from CIDA
2311 */
2312 LPITEMIDLIST* _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, LPIDA cida)
2313 {
2314         UINT i;
2315         LPITEMIDLIST * dst = (LPITEMIDLIST*)SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
2316
2317         if(!dst) return NULL;
2318
2319         if (pidl)
2320           *pidl = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[0]]));
2321
2322         for (i = 0; i < cida->cidl; i++)
2323           dst[i] = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[i + 1]]));
2324
2325         return dst;
2326 }