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
 161     TRACE ("(%p)->(count=%lu)\n", This, This->ref);
 162
 163     return ++(This->ref);
 164 }
 165
 166 static ULONG WINAPI ISF_Desktop_fnRelease (IShellFolder2 * iface)
 167 {
 168     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 169
 170     TRACE ("(%p)->(count=%lu)\n", This, This->ref);
 171
 172     if (!--(This->ref)) {
 173         TRACE ("-- destroying IShellFolder(%p)\n", This);
 174         if (This->pidlRoot)
 175             SHFree (This->pidlRoot);
 176         if (This->sPathTarget)
 177             SHFree (This->sPathTarget);
 178         LocalFree ((HLOCAL) This);
 179         return 0;
 180     }
 181     return This->ref;
 182 }
 183
 184 /**************************************************************************
 185 *       ISF_Desktop_fnParseDisplayName
 186 *
 187 * NOTES
 188 *       "::{20D04FE0-3AEA-1069-A2D8-08002B30309D}" and "" binds
 189 *       to MyComputer
 190 */
 191 static HRESULT WINAPI ISF_Desktop_fnParseDisplayName (IShellFolder2 * iface,
 192                                                       HWND hwndOwner,
 193                                                       LPBC pbc,
 194                                                       LPOLESTR lpszDisplayName,
 195                                                       DWORD * pchEaten, LPITEMIDLIST * ppidl, DWORD * pdwAttributes)
 196 {
 197     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 198
 199     WCHAR szElement[MAX_PATH];
 200     LPCWSTR szNext = NULL;
 201     LPITEMIDLIST pidlTemp = NULL;
 202     HRESULT hr = S_OK;
 203     char szPath[MAX_PATH];
 204     DWORD len;
 205     CLSID clsid;
 206
 207     TRACE ("(%p)->(HWND=%p,%p,%p=%s,%p,pidl=%p,%p)\n",
 208            This, hwndOwner, pbc, lpszDisplayName, debugstr_w (lpszDisplayName), pchEaten, ppidl, pdwAttributes);
 209
 210     if (!lpszDisplayName || !ppidl)
 211         return E_INVALIDARG;
 212
 213     *ppidl = 0;
 214
 215     if (pchEaten)
 216         *pchEaten = 0;          /* strange but like the original */
 217
 218     if (lpszDisplayName[0] == ':' && lpszDisplayName[1] == ':') {
 219         szNext = GetNextElementW (lpszDisplayName, szElement, MAX_PATH);
 220         TRACE ("-- element: %s\n", debugstr_w (szElement));
 221         SHCLSIDFromStringW (szElement + 2, &clsid);
 222         pidlTemp = _ILCreateGuid (PT_GUID, &clsid);
 223     } else if (PathGetDriveNumberW (lpszDisplayName) >= 0) {
 224         /* it's a filesystem path with a drive. Let MyComputer parse it */
 225         pidlTemp = _ILCreateMyComputer ();
 226         szNext = lpszDisplayName;
 227     } else if (PathIsUNCW(lpszDisplayName)) {
 228         pidlTemp = _ILCreateNetwork();
 229         szNext = lpszDisplayName;
 230     } else {
 231         /* it's a filesystem path on the desktop. Let a FSFolder parse it */
 232
 233         if (*lpszDisplayName) {
 234             /* build a complete path to create a simple pidl */
 235             lstrcpyA(szPath, This->sPathTarget);
 236             PathAddBackslashA(szPath);
 237             len = lstrlenA(szPath);
 238             WideCharToMultiByte(CP_ACP, 0, lpszDisplayName, -1, szPath + len, MAX_PATH - len, NULL, NULL);
 239             hr = _ILCreateFromPathA(szPath, &pidlTemp);
 240         } else {
 241             pidlTemp = _ILCreateMyComputer();
 242         }
 243
 244         szNext = NULL;
 245     }
 246
 247     if (SUCCEEDED(hr) && pidlTemp) {
 248         if (szNext && *szNext) {
 249             hr = SHELL32_ParseNextElement (iface, hwndOwner, pbc, &pidlTemp, (LPOLESTR) szNext, pchEaten, pdwAttributes);
 250         } else {
 251             if (pdwAttributes && *pdwAttributes) {
 252                 hr = SHELL32_GetItemAttributes (_IShellFolder_ (This), pidlTemp, pdwAttributes);
 253             }
 254         }
 255     }
 256
 257     *ppidl = pidlTemp;
 258
 259     TRACE ("(%p)->(-- ret=0x%08lx)\n", This, hr);
 260
 261     return hr;
 262 }
 263
 264 /**************************************************************************
 265  *  CreateDesktopEnumList()
 266  */
 267 static BOOL CreateDesktopEnumList(IEnumIDList *list, DWORD dwFlags)
 268 {
 269     BOOL ret = TRUE;
 270     char szPath[MAX_PATH];
 271
 272     TRACE("(%p)->(flags=0x%08lx) \n",list,dwFlags);
 273
 274     /*enumerate the root folders */
 275     if(dwFlags & SHCONTF_FOLDERS)
 276     {
 277         HKEY hkey;
 278
 279         /*create the pidl for This item */
 280         ret = AddToEnumList(list, _ILCreateMyComputer());
 281
 282         if (ret && !RegOpenKeyExA(HKEY_LOCAL_MACHINE,
 283          "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\explorer\\desktop\\NameSpace",
 284          0, KEY_READ, &hkey))
 285         {
 286             char iid[50];
 287             int i=0;
 288             BOOL moreKeys = TRUE;
 289
 290             while (ret && moreKeys)
 291             {
 292                 DWORD size = sizeof (iid);
 293                 LONG apiRet = RegEnumKeyExA(hkey, i, iid, &size, 0, NULL, NULL,
 294                  NULL);
 295
 296                 if (ERROR_SUCCESS == apiRet)
 297                 {
 298                     ret = AddToEnumList(list, _ILCreateGuidFromStrA(iid));
 299                     i++;
 300                 }
 301                 else if (ERROR_NO_MORE_ITEMS == apiRet)
 302                     moreKeys = FALSE;
 303                 else
 304                     ret = FALSE;
 305             }
 306             RegCloseKey(hkey);
 307         }
 308     }
 309
 310     /*enumerate the elements in %windir%\desktop */
 311     SHGetSpecialFolderPathA(0, szPath, CSIDL_DESKTOPDIRECTORY, FALSE);
 312     ret = ret && CreateFolderEnumList(list, szPath, dwFlags);
 313
 314     return ret;
 315 }
 316
 317 /**************************************************************************
 318 *               ISF_Desktop_fnEnumObjects
 319 */
 320 static HRESULT WINAPI ISF_Desktop_fnEnumObjects (IShellFolder2 * iface,
 321                                                  HWND hwndOwner, DWORD dwFlags, LPENUMIDLIST * ppEnumIDList)
 322 {
 323     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 324
 325     TRACE ("(%p)->(HWND=%p flags=0x%08lx pplist=%p)\n", This, hwndOwner, dwFlags, ppEnumIDList);
 326
 327     *ppEnumIDList = IEnumIDList_Constructor();
 328     if (*ppEnumIDList)
 329         CreateDesktopEnumList(*ppEnumIDList, dwFlags);
 330
 331     TRACE ("-- (%p)->(new ID List: %p)\n", This, *ppEnumIDList);
 332
 333     return *ppEnumIDList ? S_OK : E_OUTOFMEMORY;
 334 }
 335
 336 /**************************************************************************
 337 *               ISF_Desktop_fnBindToObject
 338 */
 339 static HRESULT WINAPI ISF_Desktop_fnBindToObject (IShellFolder2 * iface,
 340                                                   LPCITEMIDLIST pidl, LPBC pbcReserved, REFIID riid, LPVOID * ppvOut)
 341 {
 342     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 343
 344     TRACE ("(%p)->(pidl=%p,%p,%s,%p)\n", This, pidl, pbcReserved, shdebugstr_guid (riid), ppvOut);
 345
 346     return SHELL32_BindToChild (This->pidlRoot, This->sPathTarget, pidl, riid, ppvOut);
 347 }
 348
 349 /**************************************************************************
 350 *       ISF_Desktop_fnBindToStorage
 351 */
 352 static HRESULT WINAPI ISF_Desktop_fnBindToStorage (IShellFolder2 * iface,
 353                                                    LPCITEMIDLIST pidl, LPBC pbcReserved, REFIID riid, LPVOID * ppvOut)
 354 {
 355     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 356
 357     FIXME ("(%p)->(pidl=%p,%p,%s,%p) stub\n", This, pidl, pbcReserved, shdebugstr_guid (riid), ppvOut);
 358
 359     *ppvOut = NULL;
 360     return E_NOTIMPL;
 361 }
 362
 363 /**************************************************************************
 364 *       ISF_Desktop_fnCompareIDs
 365 */
 366
 367 static HRESULT WINAPI ISF_Desktop_fnCompareIDs (IShellFolder2 * iface,
 368                                                 LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 369 {
 370     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 371
 372     int nReturn;
 373
 374     TRACE ("(%p)->(0x%08lx,pidl1=%p,pidl2=%p)\n", This, lParam, pidl1, pidl2);
 375     nReturn = SHELL32_CompareIDs (_IShellFolder_ (This), lParam, pidl1, pidl2);
 376     TRACE ("-- %i\n", nReturn);
 377     return nReturn;
 378 }
 379
 380 /**************************************************************************
 381 *       ISF_Desktop_fnCreateViewObject
 382 */
 383 static HRESULT WINAPI ISF_Desktop_fnCreateViewObject (IShellFolder2 * iface,
 384                                                       HWND hwndOwner, REFIID riid, LPVOID * ppvOut)
 385 {
 386     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 387
 388     LPSHELLVIEW pShellView;
 389     HRESULT hr = E_INVALIDARG;
 390
 391     TRACE ("(%p)->(hwnd=%p,%s,%p)\n", This, hwndOwner, shdebugstr_guid (riid), ppvOut);
 392
 393     if (ppvOut) {
 394         *ppvOut = NULL;
 395
 396         if (IsEqualIID (riid, &IID_IDropTarget)) {
 397             WARN ("IDropTarget not implemented\n");
 398             hr = E_NOTIMPL;
 399         } else if (IsEqualIID (riid, &IID_IContextMenu)) {
 400             WARN ("IContextMenu not implemented\n");
 401             hr = E_NOTIMPL;
 402         } else if (IsEqualIID (riid, &IID_IShellView)) {
 403             pShellView = IShellView_Constructor ((IShellFolder *) iface);
 404             if (pShellView) {
 405                 hr = IShellView_QueryInterface (pShellView, riid, ppvOut);
 406                 IShellView_Release (pShellView);
 407             }
 408         }
 409     }
 410     TRACE ("-- (%p)->(interface=%p)\n", This, ppvOut);
 411     return hr;
 412 }
 413
 414 /**************************************************************************
 415 *  ISF_Desktop_fnGetAttributesOf
 416 */
 417 static HRESULT WINAPI ISF_Desktop_fnGetAttributesOf (IShellFolder2 * iface,
 418                                                      UINT cidl, LPCITEMIDLIST * apidl, DWORD * rgfInOut)
 419 {
 420     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 421
 422     HRESULT hr = S_OK;
 423
 424     TRACE ("(%p)->(cidl=%d apidl=%p mask=0x%08lx)\n", This, cidl, apidl, *rgfInOut);
 425
 426     if ((!cidl) || (!apidl) || (!rgfInOut))
 427         return E_INVALIDARG;
 428
 429     if (*rgfInOut == 0)
 430         *rgfInOut = ~0;
 431
 432     while (cidl > 0 && *apidl) {
 433         pdump (*apidl);
 434         SHELL32_GetItemAttributes (_IShellFolder_ (This), *apidl, rgfInOut);
 435         apidl++;
 436         cidl--;
 437     }
 438
 439     TRACE ("-- result=0x%08lx\n", *rgfInOut);
 440
 441     return hr;
 442 }
 443
 444 /**************************************************************************
 445 *       ISF_Desktop_fnGetUIObjectOf
 446 *
 447 * PARAMETERS
 448 *  HWND           hwndOwner, //[in ] Parent window for any output
 449 *  UINT           cidl,      //[in ] array size
 450 *  LPCITEMIDLIST* apidl,     //[in ] simple pidl array
 451 *  REFIID         riid,      //[in ] Requested Interface
 452 *  UINT*          prgfInOut, //[   ] reserved
 453 *  LPVOID*        ppvObject) //[out] Resulting Interface
 454 *
 455 */
 456 static HRESULT WINAPI ISF_Desktop_fnGetUIObjectOf (IShellFolder2 * iface,
 457                                                    HWND hwndOwner,
 458                                                    UINT cidl,
 459                                                    LPCITEMIDLIST * apidl,
 460                                                    REFIID riid, UINT * prgfInOut, LPVOID * ppvOut)
 461 {
 462     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 463
 464     LPITEMIDLIST pidl;
 465     IUnknown *pObj = NULL;
 466     HRESULT hr = E_INVALIDARG;
 467
 468     TRACE ("(%p)->(%p,%u,apidl=%p,%s,%p,%p)\n",
 469            This, hwndOwner, cidl, apidl, shdebugstr_guid (riid), prgfInOut, ppvOut);
 470
 471     if (ppvOut) {
 472         *ppvOut = NULL;
 473
 474         if (IsEqualIID (riid, &IID_IContextMenu)) {
 475             pObj = (LPUNKNOWN) ISvItemCm_Constructor ((IShellFolder *) iface, This->pidlRoot, apidl, cidl);
 476             hr = S_OK;
 477         } else if (IsEqualIID (riid, &IID_IDataObject) && (cidl >= 1)) {
 478             pObj = (LPUNKNOWN) IDataObject_Constructor (hwndOwner, This->pidlRoot, apidl, cidl);
 479             hr = S_OK;
 480         } else if (IsEqualIID (riid, &IID_IExtractIconA) && (cidl == 1)) {
 481             pidl = ILCombine (This->pidlRoot, apidl[0]);
 482             pObj = (LPUNKNOWN) IExtractIconA_Constructor (pidl);
 483             SHFree (pidl);
 484             hr = S_OK;
 485         } else if (IsEqualIID (riid, &IID_IExtractIconW) && (cidl == 1)) {
 486             pidl = ILCombine (This->pidlRoot, apidl[0]);
 487             pObj = (LPUNKNOWN) IExtractIconW_Constructor (pidl);
 488             SHFree (pidl);
 489             hr = S_OK;
 490         } else if (IsEqualIID (riid, &IID_IDropTarget) && (cidl >= 1)) {
 491             hr = IShellFolder_QueryInterface (iface, &IID_IDropTarget, (LPVOID *) & pObj);
 492         } else if ((IsEqualIID(riid,&IID_IShellLinkW) || IsEqualIID(riid,&IID_IShellLinkA))
 493                                 && (cidl == 1)) {
 494             pidl = ILCombine (This->pidlRoot, apidl[0]);
 495             hr = IShellLink_ConstructFromFile(NULL, riid, pidl, (LPVOID*)&pObj);
 496             SHFree (pidl);
 497         } else {
 498             hr = E_NOINTERFACE;
 499         }
 500
 501         if (SUCCEEDED(hr) && !pObj)
 502             hr = E_OUTOFMEMORY;
 503
 504         *ppvOut = pObj;
 505     }
 506     TRACE ("(%p)->hr=0x%08lx\n", This, hr);
 507     return hr;
 508 }
 509
 510 /**************************************************************************
 511 *       ISF_Desktop_fnGetDisplayNameOf
 512 *
 513 * NOTES
 514 *       special case: pidl = null gives desktop-name back
 515 */
 516 static HRESULT WINAPI ISF_Desktop_fnGetDisplayNameOf (IShellFolder2 * iface,
 517                                                       LPCITEMIDLIST pidl, DWORD dwFlags, LPSTRRET strRet)
 518 {
 519     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 520
 521     CHAR szPath[MAX_PATH];
 522     GUID const *clsid;
 523     HRESULT hr = S_OK;
 524
 525     *szPath = '\0';
 526
 527     TRACE ("(%p)->(pidl=%p,0x%08lx,%p)\n", This, pidl, dwFlags, strRet);
 528     pdump (pidl);
 529
 530     if (!strRet)
 531         return E_INVALIDARG;
 532
 533     if (_ILIsDesktop (pidl)) {
 534         if ((GET_SHGDN_RELATION (dwFlags) == SHGDN_NORMAL) && (GET_SHGDN_FOR (dwFlags) == SHGDN_FORPARSING)) {
 535             lstrcpyA (szPath, This->sPathTarget);
 536         } else {
 537             HCR_GetClassNameA(&CLSID_ShellDesktop, szPath, MAX_PATH);
 538         }
 539     } else if (_ILIsPidlSimple (pidl)) {
 540         if ((clsid = _ILGetGUIDPointer (pidl))) {
 541             if (GET_SHGDN_FOR (dwFlags) == SHGDN_FORPARSING) {
 542                 int bWantsForParsing;
 543
 544                 /*
 545                  * we can only get a filesystem path from a shellfolder if the value WantsFORPARSING in
 546                  * CLSID\\{...}\\shellfolder exists
 547                  * exception: the MyComputer folder has this keys not but like any filesystem backed
 548                  *            folder it needs these behaviour
 549                  */
 550                 if (IsEqualIID (clsid, &CLSID_MyComputer)) {
 551                     bWantsForParsing = 1;
 552                 } else {
 553                     /* get the "WantsFORPARSING" flag from the registry */
 554                     char szRegPath[100];
 555
 556                     lstrcpyA (szRegPath, "CLSID\\");
 557                     SHELL32_GUIDToStringA (clsid, &szRegPath[6]);
 558                     lstrcatA (szRegPath, "\\shellfolder");
 559                     bWantsForParsing =
 560                         (ERROR_SUCCESS ==
 561                          SHGetValueA (HKEY_CLASSES_ROOT, szRegPath, "WantsFORPARSING", NULL, NULL, NULL));
 562                 }
 563
 564                 if ((GET_SHGDN_RELATION (dwFlags) == SHGDN_NORMAL) && bWantsForParsing) {
 565                     /* we need the filesystem path to the destination folder. Only the folder itself can know it */
 566                     hr = SHELL32_GetDisplayNameOfChild (iface, pidl, dwFlags, szPath, MAX_PATH);
 567                 } else {
 568                     /* parsing name like ::{...} */
 569                     lstrcpyA (szPath, "::");
 570                     SHELL32_GUIDToStringA (clsid, &szPath[2]);
 571                 }
 572             } else {
 573                 /* user friendly name */
 574                 HCR_GetClassNameA (clsid, szPath, MAX_PATH);
 575             }
 576         } else {
 577             /* file system folder */
 578             _ILSimpleGetText (pidl, szPath, MAX_PATH);
 579
 580             if (!_ILIsFolder(pidl))
 581                 SHELL_FS_ProcessDisplayFilename(szPath, dwFlags);
 582         }
 583     } else {
 584         /* a complex pidl, let the subfolder do the work */
 585         hr = SHELL32_GetDisplayNameOfChild (iface, pidl, dwFlags, szPath, MAX_PATH);
 586     }
 587
 588     if (SUCCEEDED (hr)) {
 589         strRet->uType = STRRET_CSTR;
 590         lstrcpynA (strRet->u.cStr, szPath, MAX_PATH);
 591     }
 592
 593     TRACE ("-- (%p)->(%s,0x%08lx)\n", This, szPath, hr);
 594     return hr;
 595 }
 596
 597 /**************************************************************************
 598 *  ISF_Desktop_fnSetNameOf
 599 *  Changes the name of a file object or subfolder, possibly changing its item
 600 *  identifier in the process.
 601 *
 602 * PARAMETERS
 603 *  HWND          hwndOwner,  //[in ] Owner window for output
 604 *  LPCITEMIDLIST pidl,       //[in ] simple pidl of item to change
 605 *  LPCOLESTR     lpszName,   //[in ] the items new display name
 606 *  DWORD         dwFlags,    //[in ] SHGNO formatting flags
 607 *  LPITEMIDLIST* ppidlOut)   //[out] simple pidl returned
 608 */
 609 static HRESULT WINAPI ISF_Desktop_fnSetNameOf (IShellFolder2 * iface, HWND hwndOwner, LPCITEMIDLIST pidl,       /*simple pidl */
 610                                                LPCOLESTR lpName, DWORD dwFlags, LPITEMIDLIST * pPidlOut)
 611 {
 612     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 613
 614     FIXME ("(%p)->(%p,pidl=%p,%s,%lu,%p)\n", This, hwndOwner, pidl, debugstr_w (lpName), dwFlags, pPidlOut);
 615
 616     return E_FAIL;
 617 }
 618
 619 static HRESULT WINAPI ISF_Desktop_fnGetDefaultSearchGUID (IShellFolder2 * iface, GUID * pguid)
 620 {
 621     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 622
 623     FIXME ("(%p)\n", This);
 624     return E_NOTIMPL;
 625 }
 626 static HRESULT WINAPI ISF_Desktop_fnEnumSearches (IShellFolder2 * iface, IEnumExtraSearch ** ppenum)
 627 {
 628     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 629     FIXME ("(%p)\n", This);
 630     return E_NOTIMPL;
 631 }
 632 static HRESULT WINAPI ISF_Desktop_fnGetDefaultColumn (IShellFolder2 * iface,
 633                                                       DWORD dwRes, ULONG * pSort, ULONG * pDisplay)
 634 {
 635     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 636
 637     TRACE ("(%p)\n", This);
 638
 639     if (pSort)
 640         *pSort = 0;
 641     if (pDisplay)
 642         *pDisplay = 0;
 643
 644     return S_OK;
 645 }
 646 static HRESULT WINAPI ISF_Desktop_fnGetDefaultColumnState (IShellFolder2 * iface, UINT iColumn, DWORD * pcsFlags)
 647 {
 648     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 649
 650     TRACE ("(%p)\n", This);
 651
 652     if (!pcsFlags || iColumn >= DESKTOPSHELLVIEWCOLUMNS)
 653         return E_INVALIDARG;
 654
 655     *pcsFlags = DesktopSFHeader[iColumn].pcsFlags;
 656
 657     return S_OK;
 658 }
 659 static HRESULT WINAPI ISF_Desktop_fnGetDetailsEx (IShellFolder2 * iface,
 660                                                   LPCITEMIDLIST pidl, const SHCOLUMNID * pscid, VARIANT * pv)
 661 {
 662     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 663     FIXME ("(%p)\n", This);
 664
 665     return E_NOTIMPL;
 666 }
 667 static HRESULT WINAPI ISF_Desktop_fnGetDetailsOf (IShellFolder2 * iface,
 668                                                   LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS * psd)
 669 {
 670     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 671
 672     HRESULT hr = E_FAIL;
 673
 674     TRACE ("(%p)->(%p %i %p)\n", This, pidl, iColumn, psd);
 675
 676     if (!psd || iColumn >= DESKTOPSHELLVIEWCOLUMNS)
 677         return E_INVALIDARG;
 678
 679     if (!pidl) {
 680         psd->fmt = DesktopSFHeader[iColumn].fmt;
 681         psd->cxChar = DesktopSFHeader[iColumn].cxChar;
 682         psd->str.uType = STRRET_CSTR;
 683         LoadStringA (shell32_hInstance, DesktopSFHeader[iColumn].colnameid, psd->str.u.cStr, MAX_PATH);
 684         return S_OK;
 685     } else {
 686         /* the data from the pidl */
 687         switch (iColumn) {
 688         case 0:         /* name */
 689             hr = IShellFolder_GetDisplayNameOf (iface, pidl, SHGDN_NORMAL | SHGDN_INFOLDER, &psd->str);
 690             break;
 691         case 1:         /* size */
 692             _ILGetFileSize (pidl, psd->str.u.cStr, MAX_PATH);
 693             break;
 694         case 2:         /* type */
 695             _ILGetFileType (pidl, psd->str.u.cStr, MAX_PATH);
 696             break;
 697         case 3:         /* date */
 698             _ILGetFileDate (pidl, psd->str.u.cStr, MAX_PATH);
 699             break;
 700         case 4:         /* attributes */
 701             _ILGetFileAttributes (pidl, psd->str.u.cStr, MAX_PATH);
 702             break;
 703         }
 704         hr = S_OK;
 705         psd->str.uType = STRRET_CSTR;
 706     }
 707
 708     return hr;
 709 }
 710 static HRESULT WINAPI ISF_Desktop_fnMapColumnToSCID (IShellFolder2 * iface, UINT column, SHCOLUMNID * pscid)
 711 {
 712     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 713     FIXME ("(%p)\n", This);
 714     return E_NOTIMPL;
 715 }
 716
 717 static IShellFolder2Vtbl vt_MCFldr_ShellFolder2 =
 718 {
 719         ISF_Desktop_fnQueryInterface,
 720         ISF_Desktop_fnAddRef,
 721         ISF_Desktop_fnRelease,
 722         ISF_Desktop_fnParseDisplayName,
 723         ISF_Desktop_fnEnumObjects,
 724         ISF_Desktop_fnBindToObject,
 725         ISF_Desktop_fnBindToStorage,
 726         ISF_Desktop_fnCompareIDs,
 727         ISF_Desktop_fnCreateViewObject,
 728         ISF_Desktop_fnGetAttributesOf,
 729         ISF_Desktop_fnGetUIObjectOf,
 730         ISF_Desktop_fnGetDisplayNameOf,
 731         ISF_Desktop_fnSetNameOf,
 732         /* ShellFolder2 */
 733         ISF_Desktop_fnGetDefaultSearchGUID,
 734         ISF_Desktop_fnEnumSearches,
 735         ISF_Desktop_fnGetDefaultColumn,
 736         ISF_Desktop_fnGetDefaultColumnState,
 737         ISF_Desktop_fnGetDetailsEx,
 738         ISF_Desktop_fnGetDetailsOf,
 739         ISF_Desktop_fnMapColumnToSCID};