git.oblomov.eu Git - wine/blob - dlls/shell32/shfldr_desktop.c

   1
   2 /*
   3  *      Virtual Desktop Folder
   4  *
   5  *      Copyright 1997                  Marcus Meissner
   6  *      Copyright 1998, 1999, 2002      Juergen Schmied
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <stdarg.h>
  29 #include <stdio.h>
  30
  31 #define COBJMACROS
  32 #define NONAMELESSUNION
  33 #define NONAMELESSSTRUCT
  34
  35 #include "winerror.h"
  36 #include "windef.h"
  37 #include "winbase.h"
  38 #include "winreg.h"
  39 #include "wingdi.h"
  40 #include "winuser.h"
  41
  42 #include "ole2.h"
  43 #include "shlguid.h"
  44
  45 #include "enumidlist.h"
  46 #include "pidl.h"
  47 #include "undocshell.h"
  48 #include "shell32_main.h"
  49 #include "shresdef.h"
  50 #include "shlwapi.h"
  51 #include "shellfolder.h"
  52 #include "wine/debug.h"
  53 #include "debughlp.h"
  54 #include "shfldr.h"
  55
  56 WINE_DEFAULT_DEBUG_CHANNEL (shell);
  57
  58 /***********************************************************************
  59 *       Desktopfolder implementation
  60 */
  61
  62 typedef struct {
  63     IShellFolder2Vtbl *lpVtbl;
  64     DWORD ref;
  65
  66     CLSID *pclsid;
  67
  68     /* both paths are parsible from the desktop */
  69     LPSTR sPathTarget;          /* complete path to target used for enumeration and ChangeNotify */
  70     LPITEMIDLIST pidlRoot;      /* absolute pidl */
  71
  72     int dwAttributes;           /* attributes returned by GetAttributesOf FIXME: use it */
  73
  74     UINT cfShellIDList;         /* clipboardformat for IDropTarget */
  75     BOOL fAcceptFmt;            /* flag for pending Drop */
  76 } IGenericSFImpl;
  77
  78 #define _IUnknown_(This)        (IShellFolder*)&(This->lpVtbl)
  79 #define _IShellFolder_(This)    (IShellFolder*)&(This->lpVtbl)
  80
  81 static struct IShellFolder2Vtbl vt_MCFldr_ShellFolder2;
  82
  83 static shvheader DesktopSFHeader[] = {
  84     {IDS_SHV_COLUMN1, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 15},
  85     {IDS_SHV_COLUMN2, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
  86     {IDS_SHV_COLUMN3, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
  87     {IDS_SHV_COLUMN4, SHCOLSTATE_TYPE_DATE | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 12},
  88     {IDS_SHV_COLUMN5, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 5}
  89 };
  90
  91 #define DESKTOPSHELLVIEWCOLUMNS 5
  92
  93 /**************************************************************************
  94 *       ISF_Desktop_Constructor
  95 */
  96 HRESULT WINAPI ISF_Desktop_Constructor (IUnknown * pUnkOuter, REFIID riid, LPVOID * ppv)
  97 {
  98     IGenericSFImpl *sf;
  99     char szMyPath[MAX_PATH];
 100
 101     TRACE ("unkOut=%p %s\n", pUnkOuter, shdebugstr_guid (riid));
 102
 103     if (!ppv)
 104         return E_POINTER;
 105     if (pUnkOuter)
 106         return CLASS_E_NOAGGREGATION;
 107
 108     if (!SHGetSpecialFolderPathA (0, szMyPath, CSIDL_DESKTOPDIRECTORY, TRUE))
 109         return E_UNEXPECTED;
 110
 111     sf = (IGenericSFImpl *) LocalAlloc (GMEM_ZEROINIT, sizeof (IGenericSFImpl));
 112     if (!sf)
 113         return E_OUTOFMEMORY;
 114
 115     sf->ref = 0;
 116     sf->lpVtbl = &vt_MCFldr_ShellFolder2;
 117     sf->pidlRoot = _ILCreateDesktop (); /* my qualified pidl */
 118     sf->sPathTarget = SHAlloc (strlen (szMyPath) + 1);
 119     lstrcpyA (sf->sPathTarget, szMyPath);
 120
 121     if (!SUCCEEDED (IUnknown_QueryInterface (_IUnknown_ (sf), riid, ppv))) {
 122         IUnknown_Release (_IUnknown_ (sf));
 123         return E_NOINTERFACE;
 124     }
 125
 126     TRACE ("--(%p)\n", sf);
 127     return S_OK;
 128 }
 129
 130 /**************************************************************************
 131  *      ISF_Desktop_fnQueryInterface
 132  *
 133  * NOTES supports not IPersist/IPersistFolder
 134  */
 135 static HRESULT WINAPI ISF_Desktop_fnQueryInterface (IShellFolder2 * iface, REFIID riid, LPVOID * ppvObj)
 136 {
 137     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 138
 139     TRACE ("(%p)->(%s,%p)\n", This, shdebugstr_guid (riid), ppvObj);
 140
 141     *ppvObj = NULL;
 142
 143     if (IsEqualIID (riid, &IID_IUnknown) || IsEqualIID (riid, &IID_IShellFolder)
 144         || IsEqualIID (riid, &IID_IShellFolder2)) {
 145         *ppvObj = This;
 146     }
 147
 148     if (*ppvObj) {
 149         IUnknown_AddRef ((IUnknown *) (*ppvObj));
 150         TRACE ("-- Interface: (%p)->(%p)\n", ppvObj, *ppvObj);
 151         return S_OK;
 152     }
 153     TRACE ("-- Interface: E_NOINTERFACE\n");
 154     return E_NOINTERFACE;
 155 }
 156
 157 static ULONG WINAPI ISF_Desktop_fnAddRef (IShellFolder2 * iface)
 158 {
 159     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 160     ULONG refCount = InterlockedIncrement(&This->ref);
 161
 162     TRACE ("(%p)->(count=%lu)\n", This, refCount - 1);
 163
 164     return refCount;
 165 }
 166
 167 static ULONG WINAPI ISF_Desktop_fnRelease (IShellFolder2 * iface)
 168 {
 169     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 170     ULONG refCount = InterlockedDecrement(&This->ref);
 171
 172     TRACE ("(%p)->(count=%lu)\n", This, refCount + 1);
 173
 174     if (!refCount) {
 175         TRACE ("-- destroying IShellFolder(%p)\n", This);
 176         if (This->pidlRoot)
 177             SHFree (This->pidlRoot);
 178         if (This->sPathTarget)
 179             SHFree (This->sPathTarget);
 180         LocalFree ((HLOCAL) This);
 181         return 0;
 182     }
 183     return refCount;
 184 }
 185
 186 /**************************************************************************
 187 *       ISF_Desktop_fnParseDisplayName
 188 *
 189 * NOTES
 190 *       "::{20D04FE0-3AEA-1069-A2D8-08002B30309D}" and "" binds
 191 *       to MyComputer
 192 */
 193 static HRESULT WINAPI ISF_Desktop_fnParseDisplayName (IShellFolder2 * iface,
 194                                                       HWND hwndOwner,
 195                                                       LPBC pbc,
 196                                                       LPOLESTR lpszDisplayName,
 197                                                       DWORD * pchEaten, LPITEMIDLIST * ppidl, DWORD * pdwAttributes)
 198 {
 199     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 200
 201     WCHAR szElement[MAX_PATH];
 202     LPCWSTR szNext = NULL;
 203     LPITEMIDLIST pidlTemp = NULL;
 204     HRESULT hr = S_OK;
 205     char szPath[MAX_PATH];
 206     DWORD len;
 207     CLSID clsid;
 208
 209     TRACE ("(%p)->(HWND=%p,%p,%p=%s,%p,pidl=%p,%p)\n",
 210            This, hwndOwner, pbc, lpszDisplayName, debugstr_w (lpszDisplayName), pchEaten, ppidl, pdwAttributes);
 211
 212     if (!lpszDisplayName || !ppidl)
 213         return E_INVALIDARG;
 214
 215     *ppidl = 0;
 216
 217     if (pchEaten)
 218         *pchEaten = 0;          /* strange but like the original */
 219
 220     if (lpszDisplayName[0] == ':' && lpszDisplayName[1] == ':') {
 221         szNext = GetNextElementW (lpszDisplayName, szElement, MAX_PATH);
 222         TRACE ("-- element: %s\n", debugstr_w (szElement));
 223         SHCLSIDFromStringW (szElement + 2, &clsid);
 224         pidlTemp = _ILCreateGuid (PT_GUID, &clsid);
 225     } else if (PathGetDriveNumberW (lpszDisplayName) >= 0) {
 226         /* it's a filesystem path with a drive. Let MyComputer parse it */
 227         pidlTemp = _ILCreateMyComputer ();
 228         szNext = lpszDisplayName;
 229     } else if (PathIsUNCW(lpszDisplayName)) {
 230         pidlTemp = _ILCreateNetwork();
 231         szNext = lpszDisplayName;
 232     } else {
 233         /* it's a filesystem path on the desktop. Let a FSFolder parse it */
 234
 235         if (*lpszDisplayName) {
 236             /* build a complete path to create a simple pidl */
 237             lstrcpyA(szPath, This->sPathTarget);
 238             PathAddBackslashA(szPath);
 239             len = lstrlenA(szPath);
 240             WideCharToMultiByte(CP_ACP, 0, lpszDisplayName, -1, szPath + len, MAX_PATH - len, NULL, NULL);
 241             hr = _ILCreateFromPathA(szPath, &pidlTemp);
 242         } else {
 243             pidlTemp = _ILCreateMyComputer();
 244         }
 245
 246         szNext = NULL;
 247     }
 248
 249     if (SUCCEEDED(hr) && pidlTemp) {
 250         if (szNext && *szNext) {
 251             hr = SHELL32_ParseNextElement (iface, hwndOwner, pbc, &pidlTemp, (LPOLESTR) szNext, pchEaten, pdwAttributes);
 252         } else {
 253             if (pdwAttributes && *pdwAttributes) {
 254                 hr = SHELL32_GetItemAttributes (_IShellFolder_ (This), pidlTemp, pdwAttributes);
 255             }
 256         }
 257     }
 258
 259     *ppidl = pidlTemp;
 260
 261     TRACE ("(%p)->(-- ret=0x%08lx)\n", This, hr);
 262
 263     return hr;
 264 }
 265
 266 /**************************************************************************
 267  *  CreateDesktopEnumList()
 268  */
 269 static BOOL CreateDesktopEnumList(IEnumIDList *list, DWORD dwFlags)
 270 {
 271     BOOL ret = TRUE;
 272     char szPath[MAX_PATH];
 273
 274     TRACE("(%p)->(flags=0x%08lx) \n",list,dwFlags);
 275
 276     /*enumerate the root folders */
 277     if(dwFlags & SHCONTF_FOLDERS)
 278     {
 279         HKEY hkey;
 280
 281         /*create the pidl for This item */
 282         ret = AddToEnumList(list, _ILCreateMyComputer());
 283
 284         if (ret && !RegOpenKeyExA(HKEY_LOCAL_MACHINE,
 285          "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\explorer\\desktop\\NameSpace",
 286          0, KEY_READ, &hkey))
 287         {
 288             char iid[50];
 289             int i=0;
 290             BOOL moreKeys = TRUE;
 291
 292             while (ret && moreKeys)
 293             {
 294                 DWORD size = sizeof (iid);
 295                 LONG apiRet = RegEnumKeyExA(hkey, i, iid, &size, 0, NULL, NULL,
 296                  NULL);
 297
 298                 if (ERROR_SUCCESS == apiRet)
 299                 {
 300                     ret = AddToEnumList(list, _ILCreateGuidFromStrA(iid));
 301                     i++;
 302                 }
 303                 else if (ERROR_NO_MORE_ITEMS == apiRet)
 304                     moreKeys = FALSE;
 305                 else
 306                     ret = FALSE;
 307             }
 308             RegCloseKey(hkey);
 309         }
 310     }
 311
 312     /*enumerate the elements in %windir%\desktop */
 313     SHGetSpecialFolderPathA(0, szPath, CSIDL_DESKTOPDIRECTORY, FALSE);
 314     ret = ret && CreateFolderEnumList(list, szPath, dwFlags);
 315
 316     return ret;
 317 }
 318
 319 /**************************************************************************
 320 *               ISF_Desktop_fnEnumObjects
 321 */
 322 static HRESULT WINAPI ISF_Desktop_fnEnumObjects (IShellFolder2 * iface,
 323                                                  HWND hwndOwner, DWORD dwFlags, LPENUMIDLIST * ppEnumIDList)
 324 {
 325     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 326
 327     TRACE ("(%p)->(HWND=%p flags=0x%08lx pplist=%p)\n", This, hwndOwner, dwFlags, ppEnumIDList);
 328
 329     *ppEnumIDList = IEnumIDList_Constructor();
 330     if (*ppEnumIDList)
 331         CreateDesktopEnumList(*ppEnumIDList, dwFlags);
 332
 333     TRACE ("-- (%p)->(new ID List: %p)\n", This, *ppEnumIDList);
 334
 335     return *ppEnumIDList ? S_OK : E_OUTOFMEMORY;
 336 }
 337
 338 /**************************************************************************
 339 *               ISF_Desktop_fnBindToObject
 340 */
 341 static HRESULT WINAPI ISF_Desktop_fnBindToObject (IShellFolder2 * iface,
 342                                                   LPCITEMIDLIST pidl, LPBC pbcReserved, REFIID riid, LPVOID * ppvOut)
 343 {
 344     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 345
 346     TRACE ("(%p)->(pidl=%p,%p,%s,%p)\n", This, pidl, pbcReserved, shdebugstr_guid (riid), ppvOut);
 347
 348     return SHELL32_BindToChild (This->pidlRoot, This->sPathTarget, pidl, riid, ppvOut);
 349 }
 350
 351 /**************************************************************************
 352 *       ISF_Desktop_fnBindToStorage
 353 */
 354 static HRESULT WINAPI ISF_Desktop_fnBindToStorage (IShellFolder2 * iface,
 355                                                    LPCITEMIDLIST pidl, LPBC pbcReserved, REFIID riid, LPVOID * ppvOut)
 356 {
 357     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 358
 359     FIXME ("(%p)->(pidl=%p,%p,%s,%p) stub\n", This, pidl, pbcReserved, shdebugstr_guid (riid), ppvOut);
 360
 361     *ppvOut = NULL;
 362     return E_NOTIMPL;
 363 }
 364
 365 /**************************************************************************
 366 *       ISF_Desktop_fnCompareIDs
 367 */
 368
 369 static HRESULT WINAPI ISF_Desktop_fnCompareIDs (IShellFolder2 * iface,
 370                                                 LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 371 {
 372     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 373
 374     int nReturn;
 375
 376     TRACE ("(%p)->(0x%08lx,pidl1=%p,pidl2=%p)\n", This, lParam, pidl1, pidl2);
 377     nReturn = SHELL32_CompareIDs (_IShellFolder_ (This), lParam, pidl1, pidl2);
 378     TRACE ("-- %i\n", nReturn);
 379     return nReturn;
 380 }
 381
 382 /**************************************************************************
 383 *       ISF_Desktop_fnCreateViewObject
 384 */
 385 static HRESULT WINAPI ISF_Desktop_fnCreateViewObject (IShellFolder2 * iface,
 386                                                       HWND hwndOwner, REFIID riid, LPVOID * ppvOut)
 387 {
 388     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 389
 390     LPSHELLVIEW pShellView;
 391     HRESULT hr = E_INVALIDARG;
 392
 393     TRACE ("(%p)->(hwnd=%p,%s,%p)\n", This, hwndOwner, shdebugstr_guid (riid), ppvOut);
 394
 395     if (ppvOut) {
 396         *ppvOut = NULL;
 397
 398         if (IsEqualIID (riid, &IID_IDropTarget)) {
 399             WARN ("IDropTarget not implemented\n");
 400             hr = E_NOTIMPL;
 401         } else if (IsEqualIID (riid, &IID_IContextMenu)) {
 402             WARN ("IContextMenu not implemented\n");
 403             hr = E_NOTIMPL;
 404         } else if (IsEqualIID (riid, &IID_IShellView)) {
 405             pShellView = IShellView_Constructor ((IShellFolder *) iface);
 406             if (pShellView) {
 407                 hr = IShellView_QueryInterface (pShellView, riid, ppvOut);
 408                 IShellView_Release (pShellView);
 409             }
 410         }
 411     }
 412     TRACE ("-- (%p)->(interface=%p)\n", This, ppvOut);
 413     return hr;
 414 }
 415
 416 /**************************************************************************
 417 *  ISF_Desktop_fnGetAttributesOf
 418 */
 419 static HRESULT WINAPI ISF_Desktop_fnGetAttributesOf (IShellFolder2 * iface,
 420                                                      UINT cidl, LPCITEMIDLIST * apidl, DWORD * rgfInOut)
 421 {
 422     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 423
 424     HRESULT hr = S_OK;
 425
 426     TRACE ("(%p)->(cidl=%d apidl=%p mask=0x%08lx)\n", This, cidl, apidl, *rgfInOut);
 427
 428     if ((!cidl) || (!apidl) || (!rgfInOut))
 429         return E_INVALIDARG;
 430
 431     if (*rgfInOut == 0)
 432         *rgfInOut = ~0;
 433
 434     while (cidl > 0 && *apidl) {
 435         pdump (*apidl);
 436         SHELL32_GetItemAttributes (_IShellFolder_ (This), *apidl, rgfInOut);
 437         apidl++;
 438         cidl--;
 439     }
 440
 441     TRACE ("-- result=0x%08lx\n", *rgfInOut);
 442
 443     return hr;
 444 }
 445
 446 /**************************************************************************
 447 *       ISF_Desktop_fnGetUIObjectOf
 448 *
 449 * PARAMETERS
 450 *  HWND           hwndOwner, //[in ] Parent window for any output
 451 *  UINT           cidl,      //[in ] array size
 452 *  LPCITEMIDLIST* apidl,     //[in ] simple pidl array
 453 *  REFIID         riid,      //[in ] Requested Interface
 454 *  UINT*          prgfInOut, //[   ] reserved
 455 *  LPVOID*        ppvObject) //[out] Resulting Interface
 456 *
 457 */
 458 static HRESULT WINAPI ISF_Desktop_fnGetUIObjectOf (IShellFolder2 * iface,
 459                                                    HWND hwndOwner,
 460                                                    UINT cidl,
 461                                                    LPCITEMIDLIST * apidl,
 462                                                    REFIID riid, UINT * prgfInOut, LPVOID * ppvOut)
 463 {
 464     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 465
 466     LPITEMIDLIST pidl;
 467     IUnknown *pObj = NULL;
 468     HRESULT hr = E_INVALIDARG;
 469
 470     TRACE ("(%p)->(%p,%u,apidl=%p,%s,%p,%p)\n",
 471            This, hwndOwner, cidl, apidl, shdebugstr_guid (riid), prgfInOut, ppvOut);
 472
 473     if (ppvOut) {
 474         *ppvOut = NULL;
 475
 476         if (IsEqualIID (riid, &IID_IContextMenu)) {
 477             pObj = (LPUNKNOWN) ISvItemCm_Constructor ((IShellFolder *) iface, This->pidlRoot, apidl, cidl);
 478             hr = S_OK;
 479         } else if (IsEqualIID (riid, &IID_IDataObject) && (cidl >= 1)) {
 480             pObj = (LPUNKNOWN) IDataObject_Constructor (hwndOwner, This->pidlRoot, apidl, cidl);
 481             hr = S_OK;
 482         } else if (IsEqualIID (riid, &IID_IExtractIconA) && (cidl == 1)) {
 483             pidl = ILCombine (This->pidlRoot, apidl[0]);
 484             pObj = (LPUNKNOWN) IExtractIconA_Constructor (pidl);
 485             SHFree (pidl);
 486             hr = S_OK;
 487         } else if (IsEqualIID (riid, &IID_IExtractIconW) && (cidl == 1)) {
 488             pidl = ILCombine (This->pidlRoot, apidl[0]);
 489             pObj = (LPUNKNOWN) IExtractIconW_Constructor (pidl);
 490             SHFree (pidl);
 491             hr = S_OK;
 492         } else if (IsEqualIID (riid, &IID_IDropTarget) && (cidl >= 1)) {
 493             hr = IShellFolder_QueryInterface (iface, &IID_IDropTarget, (LPVOID *) & pObj);
 494         } else if ((IsEqualIID(riid,&IID_IShellLinkW) || IsEqualIID(riid,&IID_IShellLinkA))
 495                                 && (cidl == 1)) {
 496             pidl = ILCombine (This->pidlRoot, apidl[0]);
 497             hr = IShellLink_ConstructFromFile(NULL, riid, pidl, (LPVOID*)&pObj);
 498             SHFree (pidl);
 499         } else {
 500             hr = E_NOINTERFACE;
 501         }
 502
 503         if (SUCCEEDED(hr) && !pObj)
 504             hr = E_OUTOFMEMORY;
 505
 506         *ppvOut = pObj;
 507     }
 508     TRACE ("(%p)->hr=0x%08lx\n", This, hr);
 509     return hr;
 510 }
 511
 512 /**************************************************************************
 513 *       ISF_Desktop_fnGetDisplayNameOf
 514 *
 515 * NOTES
 516 *       special case: pidl = null gives desktop-name back
 517 */
 518 static HRESULT WINAPI ISF_Desktop_fnGetDisplayNameOf (IShellFolder2 * iface,
 519                                                       LPCITEMIDLIST pidl, DWORD dwFlags, LPSTRRET strRet)
 520 {
 521     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 522
 523     CHAR szPath[MAX_PATH];
 524     GUID const *clsid;
 525     HRESULT hr = S_OK;
 526
 527     *szPath = '\0';
 528
 529     TRACE ("(%p)->(pidl=%p,0x%08lx,%p)\n", This, pidl, dwFlags, strRet);
 530     pdump (pidl);
 531
 532     if (!strRet)
 533         return E_INVALIDARG;
 534
 535     if (_ILIsDesktop (pidl)) {
 536         if ((GET_SHGDN_RELATION (dwFlags) == SHGDN_NORMAL) && (GET_SHGDN_FOR (dwFlags) == SHGDN_FORPARSING)) {
 537             lstrcpyA (szPath, This->sPathTarget);
 538         } else {
 539             HCR_GetClassNameA(&CLSID_ShellDesktop, szPath, MAX_PATH);
 540         }
 541     } else if (_ILIsPidlSimple (pidl)) {
 542         if ((clsid = _ILGetGUIDPointer (pidl))) {
 543             if (GET_SHGDN_FOR (dwFlags) == SHGDN_FORPARSING) {
 544                 int bWantsForParsing;
 545
 546                 /*
 547                  * we can only get a filesystem path from a shellfolder if the value WantsFORPARSING in
 548                  * CLSID\\{...}\\shellfolder exists
 549                  * exception: the MyComputer folder has this keys not but like any filesystem backed
 550                  *            folder it needs these behaviour
 551                  */
 552                 if (IsEqualIID (clsid, &CLSID_MyComputer)) {
 553                     bWantsForParsing = 1;
 554                 } else {
 555                     /* get the "WantsFORPARSING" flag from the registry */
 556                     char szRegPath[100];
 557
 558                     lstrcpyA (szRegPath, "CLSID\\");
 559                     SHELL32_GUIDToStringA (clsid, &szRegPath[6]);
 560                     lstrcatA (szRegPath, "\\shellfolder");
 561                     bWantsForParsing =
 562                         (ERROR_SUCCESS ==
 563                          SHGetValueA (HKEY_CLASSES_ROOT, szRegPath, "WantsFORPARSING", NULL, NULL, NULL));
 564                 }
 565
 566                 if ((GET_SHGDN_RELATION (dwFlags) == SHGDN_NORMAL) && bWantsForParsing) {
 567                     /* we need the filesystem path to the destination folder. Only the folder itself can know it */
 568                     hr = SHELL32_GetDisplayNameOfChild (iface, pidl, dwFlags, szPath, MAX_PATH);
 569                 } else {
 570                     /* parsing name like ::{...} */
 571                     lstrcpyA (szPath, "::");
 572                     SHELL32_GUIDToStringA (clsid, &szPath[2]);
 573                 }
 574             } else {
 575                 /* user friendly name */
 576                 HCR_GetClassNameA (clsid, szPath, MAX_PATH);
 577             }
 578         } else {
 579             /* file system folder */
 580             _ILSimpleGetText (pidl, szPath, MAX_PATH);
 581
 582             if (!_ILIsFolder(pidl))
 583                 SHELL_FS_ProcessDisplayFilename(szPath, dwFlags);
 584         }
 585     } else {
 586         /* a complex pidl, let the subfolder do the work */
 587         hr = SHELL32_GetDisplayNameOfChild (iface, pidl, dwFlags, szPath, MAX_PATH);
 588     }
 589
 590     if (SUCCEEDED (hr)) {
 591         strRet->uType = STRRET_CSTR;
 592         lstrcpynA (strRet->u.cStr, szPath, MAX_PATH);
 593     }
 594
 595     TRACE ("-- (%p)->(%s,0x%08lx)\n", This, szPath, hr);
 596     return hr;
 597 }
 598
 599 /**************************************************************************
 600 *  ISF_Desktop_fnSetNameOf
 601 *  Changes the name of a file object or subfolder, possibly changing its item
 602 *  identifier in the process.
 603 *
 604 * PARAMETERS
 605 *  HWND          hwndOwner,  //[in ] Owner window for output
 606 *  LPCITEMIDLIST pidl,       //[in ] simple pidl of item to change
 607 *  LPCOLESTR     lpszName,   //[in ] the items new display name
 608 *  DWORD         dwFlags,    //[in ] SHGNO formatting flags
 609 *  LPITEMIDLIST* ppidlOut)   //[out] simple pidl returned
 610 */
 611 static HRESULT WINAPI ISF_Desktop_fnSetNameOf (IShellFolder2 * iface, HWND hwndOwner, LPCITEMIDLIST pidl,       /*simple pidl */
 612                                                LPCOLESTR lpName, DWORD dwFlags, LPITEMIDLIST * pPidlOut)
 613 {
 614     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 615
 616     FIXME ("(%p)->(%p,pidl=%p,%s,%lu,%p)\n", This, hwndOwner, pidl, debugstr_w (lpName), dwFlags, pPidlOut);
 617
 618     return E_FAIL;
 619 }
 620
 621 static HRESULT WINAPI ISF_Desktop_fnGetDefaultSearchGUID (IShellFolder2 * iface, GUID * pguid)
 622 {
 623     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 624
 625     FIXME ("(%p)\n", This);
 626     return E_NOTIMPL;
 627 }
 628 static HRESULT WINAPI ISF_Desktop_fnEnumSearches (IShellFolder2 * iface, IEnumExtraSearch ** ppenum)
 629 {
 630     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 631     FIXME ("(%p)\n", This);
 632     return E_NOTIMPL;
 633 }
 634 static HRESULT WINAPI ISF_Desktop_fnGetDefaultColumn (IShellFolder2 * iface,
 635                                                       DWORD dwRes, ULONG * pSort, ULONG * pDisplay)
 636 {
 637     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 638
 639     TRACE ("(%p)\n", This);
 640
 641     if (pSort)
 642         *pSort = 0;
 643     if (pDisplay)
 644         *pDisplay = 0;
 645
 646     return S_OK;
 647 }
 648 static HRESULT WINAPI ISF_Desktop_fnGetDefaultColumnState (IShellFolder2 * iface, UINT iColumn, DWORD * pcsFlags)
 649 {
 650     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 651
 652     TRACE ("(%p)\n", This);
 653
 654     if (!pcsFlags || iColumn >= DESKTOPSHELLVIEWCOLUMNS)
 655         return E_INVALIDARG;
 656
 657     *pcsFlags = DesktopSFHeader[iColumn].pcsFlags;
 658
 659     return S_OK;
 660 }
 661 static HRESULT WINAPI ISF_Desktop_fnGetDetailsEx (IShellFolder2 * iface,
 662                                                   LPCITEMIDLIST pidl, const SHCOLUMNID * pscid, VARIANT * pv)
 663 {
 664     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 665     FIXME ("(%p)\n", This);
 666
 667     return E_NOTIMPL;
 668 }
 669 static HRESULT WINAPI ISF_Desktop_fnGetDetailsOf (IShellFolder2 * iface,
 670                                                   LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS * psd)
 671 {
 672     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 673
 674     HRESULT hr = E_FAIL;
 675
 676     TRACE ("(%p)->(%p %i %p)\n", This, pidl, iColumn, psd);
 677
 678     if (!psd || iColumn >= DESKTOPSHELLVIEWCOLUMNS)
 679         return E_INVALIDARG;
 680
 681     if (!pidl) {
 682         psd->fmt = DesktopSFHeader[iColumn].fmt;
 683         psd->cxChar = DesktopSFHeader[iColumn].cxChar;
 684         psd->str.uType = STRRET_CSTR;
 685         LoadStringA (shell32_hInstance, DesktopSFHeader[iColumn].colnameid, psd->str.u.cStr, MAX_PATH);
 686         return S_OK;
 687     } else {
 688         /* the data from the pidl */
 689         switch (iColumn) {
 690         case 0:         /* name */
 691             hr = IShellFolder_GetDisplayNameOf (iface, pidl, SHGDN_NORMAL | SHGDN_INFOLDER, &psd->str);
 692             break;
 693         case 1:         /* size */
 694             _ILGetFileSize (pidl, psd->str.u.cStr, MAX_PATH);
 695             break;
 696         case 2:         /* type */
 697             _ILGetFileType (pidl, psd->str.u.cStr, MAX_PATH);
 698             break;
 699         case 3:         /* date */
 700             _ILGetFileDate (pidl, psd->str.u.cStr, MAX_PATH);
 701             break;
 702         case 4:         /* attributes */
 703             _ILGetFileAttributes (pidl, psd->str.u.cStr, MAX_PATH);
 704             break;
 705         }
 706         hr = S_OK;
 707         psd->str.uType = STRRET_CSTR;
 708     }
 709
 710     return hr;
 711 }
 712 static HRESULT WINAPI ISF_Desktop_fnMapColumnToSCID (IShellFolder2 * iface, UINT column, SHCOLUMNID * pscid)
 713 {
 714     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 715     FIXME ("(%p)\n", This);
 716     return E_NOTIMPL;
 717 }
 718
 719 static IShellFolder2Vtbl vt_MCFldr_ShellFolder2 =
 720 {
 721         ISF_Desktop_fnQueryInterface,
 722         ISF_Desktop_fnAddRef,
 723         ISF_Desktop_fnRelease,
 724         ISF_Desktop_fnParseDisplayName,
 725         ISF_Desktop_fnEnumObjects,
 726         ISF_Desktop_fnBindToObject,
 727         ISF_Desktop_fnBindToStorage,
 728         ISF_Desktop_fnCompareIDs,
 729         ISF_Desktop_fnCreateViewObject,
 730         ISF_Desktop_fnGetAttributesOf,
 731         ISF_Desktop_fnGetUIObjectOf,
 732         ISF_Desktop_fnGetDisplayNameOf,
 733         ISF_Desktop_fnSetNameOf,
 734         /* ShellFolder2 */
 735         ISF_Desktop_fnGetDefaultSearchGUID,
 736         ISF_Desktop_fnEnumSearches,
 737         ISF_Desktop_fnGetDefaultColumn,
 738         ISF_Desktop_fnGetDefaultColumnState,
 739         ISF_Desktop_fnGetDetailsEx,
 740         ISF_Desktop_fnGetDetailsOf,
 741         ISF_Desktop_fnMapColumnToSCID};