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

   1 /*
   2  *    Virtual Workplace folder
   3  *
   4  *    Copyright 1997            Marcus Meissner
   5  *    Copyright 1998, 1999, 2002    Juergen Schmied
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <stdarg.h>
  28 #include <stdio.h>
  29
  30 #define COBJMACROS
  31 #define NONAMELESSUNION
  32 #define NONAMELESSSTRUCT
  33
  34 #include "winerror.h"
  35 #include "windef.h"
  36 #include "winbase.h"
  37 #include "winreg.h"
  38
  39 #include "wingdi.h"
  40 #include "pidl.h"
  41 #include "shlguid.h"
  42 #include "enumidlist.h"
  43 #include "undocshell.h"
  44 #include "shell32_main.h"
  45 #include "shresdef.h"
  46 #include "shlwapi.h"
  47 #include "wine/debug.h"
  48 #include "debughlp.h"
  49 #include "shfldr.h"
  50
  51 WINE_DEFAULT_DEBUG_CHANNEL (shell);
  52
  53 /***********************************************************************
  54 *   IShellFolder implementation
  55 */
  56
  57 typedef struct {
  58     IShellFolder2Vtbl   *lpVtbl;
  59     DWORD                ref;
  60     IPersistFolder2Vtbl *lpVtblPersistFolder2;
  61
  62     /* both paths are parsible from the desktop */
  63     LPITEMIDLIST pidlRoot;    /* absolute pidl */
  64     int dwAttributes;        /* attributes returned by GetAttributesOf FIXME: use it */
  65 } IGenericSFImpl;
  66
  67 static struct IShellFolder2Vtbl vt_ShellFolder2;
  68 static struct IPersistFolder2Vtbl vt_PersistFolder2;
  69
  70 #define _IPersistFolder2_Offset ((int)(&(((IGenericSFImpl*)0)->lpVtblPersistFolder2)))
  71 #define _ICOM_THIS_From_IPersistFolder2(class, name) class* This = (class*)(((char*)name)-_IPersistFolder2_Offset);
  72
  73 /*
  74   converts This to an interface pointer
  75 */
  76 #define _IUnknown_(This)    (IUnknown*)&(This->lpVtbl)
  77 #define _IShellFolder_(This)    (IShellFolder*)&(This->lpVtbl)
  78 #define _IShellFolder2_(This)    (IShellFolder2*)&(This->lpVtbl)
  79
  80 #define _IPersist_(This)    (IPersist*)&(This->lpVtblPersistFolder2)
  81 #define _IPersistFolder_(This)    (IPersistFolder*)&(This->lpVtblPersistFolder2)
  82 #define _IPersistFolder2_(This)    (IPersistFolder2*)&(This->lpVtblPersistFolder2)
  83
  84 /***********************************************************************
  85 *   IShellFolder [MyComputer] implementation
  86 */
  87
  88 static shvheader MyComputerSFHeader[] = {
  89     {IDS_SHV_COLUMN1, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 15},
  90     {IDS_SHV_COLUMN3, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
  91     {IDS_SHV_COLUMN6, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
  92     {IDS_SHV_COLUMN7, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
  93 };
  94
  95 #define MYCOMPUTERSHELLVIEWCOLUMNS 4
  96
  97 /**************************************************************************
  98 *    ISF_MyComputer_Constructor
  99 */
 100 HRESULT WINAPI ISF_MyComputer_Constructor (IUnknown * pUnkOuter, REFIID riid, LPVOID * ppv)
 101 {
 102     IGenericSFImpl *sf;
 103
 104     TRACE ("unkOut=%p %s\n", pUnkOuter, shdebugstr_guid (riid));
 105
 106     if (!ppv)
 107         return E_POINTER;
 108     if (pUnkOuter)
 109         return CLASS_E_NOAGGREGATION;
 110
 111     sf = LocalAlloc (LMEM_ZEROINIT, sizeof (IGenericSFImpl));
 112     if (!sf)
 113         return E_OUTOFMEMORY;
 114
 115     sf->ref = 0;
 116     sf->lpVtbl = &vt_ShellFolder2;
 117     sf->lpVtblPersistFolder2 = &vt_PersistFolder2;
 118     sf->pidlRoot = _ILCreateMyComputer ();    /* my qualified pidl */
 119
 120     if (!SUCCEEDED (IUnknown_QueryInterface (_IUnknown_ (sf), riid, ppv)))
 121     {
 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_MyComputer_fnQueryInterface
 132  *
 133  * NOTES supports not IPersist/IPersistFolder
 134  */
 135 static HRESULT WINAPI ISF_MyComputer_fnQueryInterface (IShellFolder2 *iface,
 136                REFIID riid, LPVOID *ppvObj)
 137 {
 138     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 139
 140     TRACE ("(%p)->(%s,%p)\n", This, shdebugstr_guid (riid), ppvObj);
 141
 142     *ppvObj = NULL;
 143
 144     if (IsEqualIID (riid, &IID_IUnknown) ||
 145         IsEqualIID (riid, &IID_IShellFolder) ||
 146         IsEqualIID (riid, &IID_IShellFolder2))
 147     {
 148         *ppvObj = This;
 149     }
 150     else if (IsEqualIID (riid, &IID_IPersist) ||
 151              IsEqualIID (riid, &IID_IPersistFolder) ||
 152              IsEqualIID (riid, &IID_IPersistFolder2))
 153     {
 154         *ppvObj = _IPersistFolder2_ (This);
 155     }
 156
 157     if (*ppvObj)
 158     {
 159         IUnknown_AddRef ((IUnknown *) (*ppvObj));
 160         TRACE ("-- Interface: (%p)->(%p)\n", ppvObj, *ppvObj);
 161         return S_OK;
 162     }
 163     TRACE ("-- Interface: E_NOINTERFACE\n");
 164     return E_NOINTERFACE;
 165 }
 166
 167 static ULONG WINAPI ISF_MyComputer_fnAddRef (IShellFolder2 * iface)
 168 {
 169     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 170     ULONG refCount = InterlockedIncrement(&This->ref);
 171
 172     TRACE ("(%p)->(count=%lu)\n", This, refCount - 1);
 173
 174     return refCount;
 175 }
 176
 177 static ULONG WINAPI ISF_MyComputer_fnRelease (IShellFolder2 * iface)
 178 {
 179     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 180     ULONG refCount = InterlockedDecrement(&This->ref);
 181
 182     TRACE ("(%p)->(count=%lu)\n", This, refCount + 1);
 183
 184     if (!refCount)
 185     {
 186         TRACE ("-- destroying IShellFolder(%p)\n", This);
 187         if (This->pidlRoot)
 188             SHFree (This->pidlRoot);
 189         LocalFree ((HLOCAL) This);
 190     }
 191     return refCount;
 192 }
 193
 194 /**************************************************************************
 195 *    ISF_MyComputer_fnParseDisplayName
 196 */
 197 static HRESULT WINAPI ISF_MyComputer_fnParseDisplayName (IShellFolder2 *iface,
 198                HWND hwndOwner, LPBC pbc, LPOLESTR lpszDisplayName,
 199                DWORD * pchEaten, LPITEMIDLIST * ppidl, DWORD * pdwAttributes)
 200 {
 201     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 202     HRESULT hr = E_INVALIDARG;
 203     LPCWSTR szNext = NULL;
 204     WCHAR szElement[MAX_PATH];
 205     LPITEMIDLIST pidlTemp = NULL;
 206     CLSID clsid;
 207
 208     TRACE("(%p)->(HWND=%p,%p,%p=%s,%p,pidl=%p,%p)\n", This,
 209           hwndOwner, pbc, lpszDisplayName, debugstr_w (lpszDisplayName),
 210           pchEaten, ppidl, pdwAttributes);
 211
 212     *ppidl = 0;
 213     if (pchEaten)
 214         *pchEaten = 0;        /* strange but like the original */
 215
 216     /* handle CLSID paths */
 217     if (lpszDisplayName[0] == ':' && lpszDisplayName[1] == ':')
 218     {
 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     }
 224     /* do we have an absolute path name ? */
 225     else if (PathGetDriveNumberW (lpszDisplayName) >= 0 &&
 226               lpszDisplayName[2] == (WCHAR) '\\')
 227     {
 228         szNext = GetNextElementW (lpszDisplayName, szElement, MAX_PATH);
 229         /* make drive letter uppercase to enable PIDL comparison */
 230         szElement[0] = toupper(szElement[0]);
 231         pidlTemp = _ILCreateDrive (szElement);
 232     }
 233
 234     if (szNext && *szNext)
 235     {
 236         hr = SHELL32_ParseNextElement (iface, hwndOwner, pbc, &pidlTemp,
 237                               (LPOLESTR) szNext, pchEaten, pdwAttributes);
 238     }
 239     else
 240     {
 241         if (pdwAttributes && *pdwAttributes)
 242             SHELL32_GetItemAttributes (_IShellFolder_ (This),
 243                                        pidlTemp, pdwAttributes);
 244         hr = S_OK;
 245     }
 246
 247     *ppidl = pidlTemp;
 248
 249     TRACE ("(%p)->(-- ret=0x%08lx)\n", This, hr);
 250
 251     return hr;
 252 }
 253
 254 /**************************************************************************
 255  *  CreateMyCompEnumList()
 256  */
 257 static const WCHAR MyComputer_NameSpaceW[] = { 'S','O','F','T','W','A','R','E',
 258  '\\','M','i','c','r','o','s','o','f','t','\\','W','i','n','d','o','w','s','\\',
 259  'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\','E','x','p','l',
 260  'o','r','e','r','\\','M','y','C','o','m','p','u','t','e','r','\\','N','a','m',
 261  'e','s','p','a','c','e','\0' };
 262
 263 static BOOL CreateMyCompEnumList(IEnumIDList *list, DWORD dwFlags)
 264 {
 265     BOOL ret = TRUE;
 266
 267     TRACE("(%p)->(flags=0x%08lx) \n",list,dwFlags);
 268
 269     /* enumerate the folders */
 270     if (dwFlags & SHCONTF_FOLDERS)
 271     {
 272         WCHAR wszDriveName[] = {'A', ':', '\\', '\0'};
 273         DWORD dwDrivemap = GetLogicalDrives();
 274         HKEY hkey;
 275
 276         while (ret && wszDriveName[0]<='Z')
 277         {
 278             if(dwDrivemap & 0x00000001L)
 279                 ret = AddToEnumList(list, _ILCreateDrive(wszDriveName));
 280             wszDriveName[0]++;
 281             dwDrivemap = dwDrivemap >> 1;
 282         }
 283
 284         TRACE("-- (%p)-> enumerate (mycomputer shell extensions)\n",list);
 285         if (ret && !RegOpenKeyExW(HKEY_LOCAL_MACHINE, MyComputer_NameSpaceW,
 286          0, KEY_READ, &hkey))
 287         {
 288             WCHAR iid[50];
 289             int i=0;
 290
 291             while (ret)
 292             {
 293                 DWORD size;
 294                 LONG r;
 295
 296                 size = sizeof(iid) / sizeof(iid[0]);
 297                 r = RegEnumKeyExW(hkey, i, iid, &size, 0, NULL, NULL, NULL);
 298                 if (ERROR_SUCCESS == r)
 299                 {
 300                     /* FIXME: shell extensions, shouldn't the type be
 301                      * PT_SHELLEXT? */
 302                     ret = AddToEnumList(list, _ILCreateGuidFromStrW(iid));
 303                     i++;
 304                 }
 305                 else if (ERROR_NO_MORE_ITEMS == r)
 306                     break;
 307                 else
 308                     ret = FALSE;
 309             }
 310             RegCloseKey(hkey);
 311         }
 312     }
 313     return ret;
 314 }
 315
 316 /**************************************************************************
 317 *        ISF_MyComputer_fnEnumObjects
 318 */
 319 static HRESULT WINAPI ISF_MyComputer_fnEnumObjects (IShellFolder2 *iface,
 320                HWND hwndOwner, DWORD dwFlags, LPENUMIDLIST *ppEnumIDList)
 321 {
 322     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 323
 324     TRACE("(%p)->(HWND=%p flags=0x%08lx pplist=%p)\n", This,
 325           hwndOwner, dwFlags, ppEnumIDList);
 326
 327     *ppEnumIDList = IEnumIDList_Constructor();
 328     if (*ppEnumIDList)
 329         CreateMyCompEnumList(*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_MyComputer_fnBindToObject
 338 */
 339 static HRESULT WINAPI ISF_MyComputer_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,
 345           pidl, pbcReserved, shdebugstr_guid (riid), ppvOut);
 346
 347     return SHELL32_BindToChild (This->pidlRoot, NULL, pidl, riid, ppvOut);
 348 }
 349
 350 /**************************************************************************
 351 *    ISF_MyComputer_fnBindToStorage
 352 */
 353 static HRESULT WINAPI ISF_MyComputer_fnBindToStorage (IShellFolder2 * iface,
 354                LPCITEMIDLIST pidl, LPBC pbcReserved, REFIID riid, LPVOID *ppvOut)
 355 {
 356     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 357
 358     FIXME("(%p)->(pidl=%p,%p,%s,%p) stub\n", This,
 359           pidl, pbcReserved, shdebugstr_guid (riid), ppvOut);
 360
 361     *ppvOut = NULL;
 362     return E_NOTIMPL;
 363 }
 364
 365 /**************************************************************************
 366 *     ISF_MyComputer_fnCompareIDs
 367 */
 368
 369 static HRESULT WINAPI ISF_MyComputer_fnCompareIDs (IShellFolder2 *iface,
 370                LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 371 {
 372     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 373     int nReturn;
 374
 375     TRACE ("(%p)->(0x%08lx,pidl1=%p,pidl2=%p)\n", This, lParam, pidl1, pidl2);
 376     nReturn = SHELL32_CompareIDs (_IShellFolder_ (This), lParam, pidl1, pidl2);
 377     TRACE ("-- %i\n", nReturn);
 378     return nReturn;
 379 }
 380
 381 /**************************************************************************
 382 *    ISF_MyComputer_fnCreateViewObject
 383 */
 384 static HRESULT WINAPI ISF_MyComputer_fnCreateViewObject (IShellFolder2 *iface,
 385                HWND hwndOwner, REFIID riid, LPVOID * ppvOut)
 386 {
 387     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 388     LPSHELLVIEW pShellView;
 389     HRESULT hr = E_INVALIDARG;
 390
 391     TRACE("(%p)->(hwnd=%p,%s,%p)\n", This,
 392           hwndOwner, shdebugstr_guid (riid), ppvOut);
 393
 394     if (!ppvOut)
 395         return hr;
 396
 397     *ppvOut = NULL;
 398
 399     if (IsEqualIID (riid, &IID_IDropTarget))
 400     {
 401         WARN ("IDropTarget not implemented\n");
 402         hr = E_NOTIMPL;
 403     }
 404     else if (IsEqualIID (riid, &IID_IContextMenu))
 405     {
 406         WARN ("IContextMenu not implemented\n");
 407         hr = E_NOTIMPL;
 408     }
 409     else if (IsEqualIID (riid, &IID_IShellView))
 410     {
 411         pShellView = IShellView_Constructor ((IShellFolder *) iface);
 412         if (pShellView)
 413         {
 414             hr = IShellView_QueryInterface (pShellView, riid, ppvOut);
 415             IShellView_Release (pShellView);
 416         }
 417     }
 418     TRACE ("-- (%p)->(interface=%p)\n", This, ppvOut);
 419     return hr;
 420 }
 421
 422 /**************************************************************************
 423 *  ISF_MyComputer_fnGetAttributesOf
 424 */
 425 static HRESULT WINAPI ISF_MyComputer_fnGetAttributesOf (IShellFolder2 * iface,
 426                 UINT cidl, LPCITEMIDLIST * apidl, DWORD * rgfInOut)
 427 {
 428     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 429     HRESULT hr = S_OK;
 430
 431     TRACE ("(%p)->(cidl=%d apidl=%p mask=%p (0x%08lx))\n",
 432            This, cidl, apidl, rgfInOut, rgfInOut ? *rgfInOut : 0);
 433
 434     if (!rgfInOut)
 435         return E_INVALIDARG;
 436     if (cidl && !apidl)
 437         return E_INVALIDARG;
 438
 439     if (*rgfInOut == 0)
 440         *rgfInOut = ~0;
 441
 442     while (cidl > 0 && *apidl)
 443     {
 444         pdump (*apidl);
 445         SHELL32_GetItemAttributes (_IShellFolder_ (This), *apidl, rgfInOut);
 446         apidl++;
 447         cidl--;
 448     }
 449     /* make sure SFGAO_VALIDATE is cleared, some apps depend on that */
 450     *rgfInOut &= ~SFGAO_VALIDATE;
 451
 452     TRACE ("-- result=0x%08lx\n", *rgfInOut);
 453     return hr;
 454 }
 455
 456 /**************************************************************************
 457 *    ISF_MyComputer_fnGetUIObjectOf
 458 *
 459 * PARAMETERS
 460 *  hwndOwner [in]  Parent window for any output
 461 *  cidl      [in]  array size
 462 *  apidl     [in]  simple pidl array
 463 *  riid      [in]  Requested Interface
 464 *  prgfInOut [   ] reserved
 465 *  ppvObject [out] Resulting Interface
 466 *
 467 */
 468 static HRESULT WINAPI ISF_MyComputer_fnGetUIObjectOf (IShellFolder2 * iface,
 469                 HWND hwndOwner, UINT cidl, LPCITEMIDLIST * apidl, REFIID riid,
 470                 UINT * prgfInOut, LPVOID * ppvOut)
 471 {
 472     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 473
 474     LPITEMIDLIST pidl;
 475     IUnknown *pObj = NULL;
 476     HRESULT hr = E_INVALIDARG;
 477
 478     TRACE("(%p)->(%p,%u,apidl=%p,%s,%p,%p)\n", This,
 479           hwndOwner, cidl, apidl, shdebugstr_guid (riid), prgfInOut, ppvOut);
 480
 481     if (!ppvOut)
 482         return hr;
 483
 484     *ppvOut = NULL;
 485
 486     if (IsEqualIID (riid, &IID_IContextMenu) && (cidl >= 1))
 487     {
 488         pObj = (LPUNKNOWN) ISvItemCm_Constructor ((IShellFolder *) iface,
 489                                               This->pidlRoot, apidl, cidl);
 490         hr = S_OK;
 491     }
 492     else if (IsEqualIID (riid, &IID_IDataObject) && (cidl >= 1))
 493     {
 494         pObj = (LPUNKNOWN) IDataObject_Constructor (hwndOwner,
 495                                               This->pidlRoot, apidl, cidl);
 496         hr = S_OK;
 497     }
 498     else if (IsEqualIID (riid, &IID_IExtractIconA) && (cidl == 1))
 499     {
 500         pidl = ILCombine (This->pidlRoot, apidl[0]);
 501         pObj = (LPUNKNOWN) IExtractIconA_Constructor (pidl);
 502         SHFree (pidl);
 503         hr = S_OK;
 504     }
 505     else if (IsEqualIID (riid, &IID_IExtractIconW) && (cidl == 1))
 506     {
 507         pidl = ILCombine (This->pidlRoot, apidl[0]);
 508         pObj = (LPUNKNOWN) IExtractIconW_Constructor (pidl);
 509         SHFree (pidl);
 510         hr = S_OK;
 511     }
 512     else if (IsEqualIID (riid, &IID_IDropTarget) && (cidl >= 1))
 513     {
 514         hr = IShellFolder_QueryInterface (iface, &IID_IDropTarget,
 515                                           (LPVOID *) &pObj);
 516     }
 517     else if ((IsEqualIID(riid,&IID_IShellLinkW) ||
 518               IsEqualIID(riid,&IID_IShellLinkA)) && (cidl == 1))
 519     {
 520         pidl = ILCombine (This->pidlRoot, apidl[0]);
 521         hr = IShellLink_ConstructFromFile(NULL, riid, pidl, (LPVOID*) &pObj);
 522         SHFree (pidl);
 523     }
 524     else
 525         hr = E_NOINTERFACE;
 526
 527     if (SUCCEEDED(hr) && !pObj)
 528         hr = E_OUTOFMEMORY;
 529
 530     *ppvOut = pObj;
 531     TRACE ("(%p)->hr=0x%08lx\n", This, hr);
 532     return hr;
 533 }
 534
 535 /**************************************************************************
 536 *    ISF_MyComputer_fnGetDisplayNameOf
 537 */
 538 static HRESULT WINAPI ISF_MyComputer_fnGetDisplayNameOf (IShellFolder2 *iface,
 539                LPCITEMIDLIST pidl, DWORD dwFlags, LPSTRRET strRet)
 540 {
 541     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 542
 543     char szPath[MAX_PATH];
 544     HRESULT hr = S_OK;
 545
 546     TRACE ("(%p)->(pidl=%p,0x%08lx,%p)\n", This, pidl, dwFlags, strRet);
 547     pdump (pidl);
 548
 549     if (!strRet)
 550         return E_INVALIDARG;
 551
 552     szPath[0] = 0x00;
 553
 554     if (!pidl->mkid.cb)
 555     {
 556         /* parsing name like ::{...} */
 557         lstrcpyA (szPath, "::");
 558         SHELL32_GUIDToStringA(&CLSID_MyComputer, &szPath[2]);
 559     }
 560     else if (_ILIsPidlSimple(pidl))
 561     {
 562         /* take names of special folders only if its only this folder */
 563         if (_ILIsSpecialFolder(pidl))
 564         {
 565             GUID const *clsid;
 566
 567             clsid = _ILGetGUIDPointer (pidl);
 568             if (clsid)
 569             {
 570                 if (GET_SHGDN_FOR (dwFlags) == SHGDN_FORPARSING)
 571                 {
 572                     static const WCHAR clsidW[] =
 573                      { 'C','L','S','I','D','\\',0 };
 574                     static const WCHAR shellfolderW[] =
 575                      { '\\','s','h','e','l','l','f','o','l','d','e','r',0 };
 576                     static const WCHAR wantsForParsingW[] =
 577                      { 'W','a','n','t','s','F','o','r','P','a','r','s','i','n',
 578                      'g',0 };
 579                     int bWantsForParsing = FALSE;
 580                     WCHAR szRegPath[100];
 581                     LONG r;
 582
 583                     /*
 584                      * We can only get a filesystem path from a shellfolder
 585                      * if the value WantsFORPARSING exists in
 586                      *      CLSID\\{...}\\shellfolder
 587                      * exception: the MyComputer folder has this keys not
 588                      *            but like any filesystem backed
 589                      *            folder it needs these behaviour
 590                      *
 591                      * Get the "WantsFORPARSING" flag from the registry
 592                      */
 593
 594                     lstrcpyW (szRegPath, clsidW);
 595                     SHELL32_GUIDToStringW (clsid, &szRegPath[6]);
 596                     lstrcatW (szRegPath, shellfolderW);
 597                     r = SHGetValueW (HKEY_CLASSES_ROOT, szRegPath,
 598                                      wantsForParsingW, NULL, NULL, NULL);
 599                     if (r == ERROR_SUCCESS)
 600                         bWantsForParsing = TRUE;
 601
 602                     if ((GET_SHGDN_RELATION (dwFlags) == SHGDN_NORMAL) &&
 603                         bWantsForParsing)
 604                     {
 605                         /*
 606                          * We need the filesystem path to the destination folder
 607                          * Only the folder itself can know it
 608                          */
 609                         hr = SHELL32_GetDisplayNameOfChild (iface, pidl,
 610                                                 dwFlags, szPath, MAX_PATH);
 611                     }
 612                     else
 613                     {
 614                         LPSTR p;
 615
 616                         /* parsing name like ::{...} */
 617                         p = lstrcpyA(szPath, "::") + 2;
 618                         p += SHELL32_GUIDToStringA(&CLSID_MyComputer, p);
 619
 620                         lstrcatA(p, "\\::");
 621                         p += 3;
 622                         SHELL32_GUIDToStringA(clsid, p);
 623                     }
 624                 }
 625                 else
 626                 {
 627                     /* user friendly name */
 628                     HCR_GetClassNameA (clsid, szPath, MAX_PATH);
 629                 }
 630             }
 631             else
 632             {
 633                 /* append my own path */
 634                 _ILSimpleGetText (pidl, szPath, MAX_PATH);
 635             }
 636         }
 637         else if (_ILIsDrive(pidl))
 638         {
 639             _ILSimpleGetText (pidl, szPath, MAX_PATH);    /* append my own path */
 640
 641             /* long view "lw_name (C:)" */
 642             if (!(dwFlags & SHGDN_FORPARSING))
 643             {
 644                 DWORD dwVolumeSerialNumber, dwMaximumComponetLength, dwFileSystemFlags;
 645                 char szDrive[18] = "";
 646
 647                 GetVolumeInformationA (szPath, szDrive, sizeof (szDrive) - 6,
 648                            &dwVolumeSerialNumber,
 649                            &dwMaximumComponetLength, &dwFileSystemFlags, NULL, 0);
 650                 strcat (szDrive, " (");
 651                 strncat (szDrive, szPath, 2);
 652                 strcat (szDrive, ")");
 653                 strcpy (szPath, szDrive);
 654             }
 655         }
 656         else
 657         {
 658             /* Neither a shell namespace extension nor a drive letter. */
 659             ERR("Wrong pidl type\n");
 660             return E_INVALIDARG;
 661         }
 662     }
 663     else
 664     {
 665         /* Complex pidl. Let the child folder do the work */
 666         strRet->uType = STRRET_CSTR;
 667         hr = SHELL32_GetDisplayNameOfChild(iface, pidl, dwFlags, szPath, MAX_PATH);
 668     }
 669
 670     if (SUCCEEDED (hr))
 671     {
 672         strRet->uType = STRRET_CSTR;
 673         lstrcpynA (strRet->u.cStr, szPath, MAX_PATH);
 674     }
 675
 676     TRACE ("-- (%p)->(%s)\n", This, szPath);
 677     return hr;
 678 }
 679
 680 /**************************************************************************
 681 *  ISF_MyComputer_fnSetNameOf
 682 *  Changes the name of a file object or subfolder, possibly changing its item
 683 *  identifier in the process.
 684 *
 685 * PARAMETERS
 686 *  hwndOwner  [in]   Owner window for output
 687 *  pidl       [in]   simple pidl of item to change
 688 *  lpszName   [in]   the items new display name
 689 *  dwFlags    [in]   SHGNO formatting flags
 690 *  ppidlOut   [out]  simple pidl returned
 691 */
 692 static HRESULT WINAPI ISF_MyComputer_fnSetNameOf (
 693                IShellFolder2 * iface, HWND hwndOwner, LPCITEMIDLIST pidl,
 694                LPCOLESTR lpName, DWORD dwFlags, LPITEMIDLIST * pPidlOut)
 695 {
 696     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 697     FIXME ("(%p)->(%p,pidl=%p,%s,%lu,%p)\n", This,
 698            hwndOwner, pidl, debugstr_w (lpName), dwFlags, pPidlOut);
 699     return E_FAIL;
 700 }
 701
 702 static HRESULT WINAPI ISF_MyComputer_fnGetDefaultSearchGUID (
 703                IShellFolder2 * iface, GUID * pguid)
 704 {
 705     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 706     FIXME ("(%p)\n", This);
 707     return E_NOTIMPL;
 708 }
 709 static HRESULT WINAPI ISF_MyComputer_fnEnumSearches (
 710                IShellFolder2 * iface, IEnumExtraSearch ** ppenum)
 711 {
 712     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 713     FIXME ("(%p)\n", This);
 714     return E_NOTIMPL;
 715 }
 716 static HRESULT WINAPI ISF_MyComputer_fnGetDefaultColumn (
 717                IShellFolder2 *iface, DWORD dwRes, ULONG *pSort, ULONG *pDisplay)
 718 {
 719     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 720
 721     TRACE ("(%p)\n", This);
 722
 723     if (pSort)
 724          *pSort = 0;
 725     if (pDisplay)
 726         *pDisplay = 0;
 727     return S_OK;
 728 }
 729 static HRESULT WINAPI ISF_MyComputer_fnGetDefaultColumnState (
 730                IShellFolder2 * iface, UINT iColumn, DWORD * pcsFlags)
 731 {
 732     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 733
 734     TRACE ("(%p)\n", This);
 735
 736     if (!pcsFlags || iColumn >= MYCOMPUTERSHELLVIEWCOLUMNS)
 737         return E_INVALIDARG;
 738     *pcsFlags = MyComputerSFHeader[iColumn].pcsFlags;
 739     return S_OK;
 740 }
 741
 742 static HRESULT WINAPI ISF_MyComputer_fnGetDetailsEx (IShellFolder2 * iface,
 743                LPCITEMIDLIST pidl, const SHCOLUMNID * pscid, VARIANT * pv)
 744 {
 745     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 746     FIXME ("(%p)\n", This);
 747     return E_NOTIMPL;
 748 }
 749
 750 /* FIXME: drive size >4GB is rolling over */
 751 static HRESULT WINAPI ISF_MyComputer_fnGetDetailsOf (IShellFolder2 * iface,
 752                LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS * psd)
 753 {
 754     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 755     HRESULT hr;
 756
 757     TRACE ("(%p)->(%p %i %p)\n", This, pidl, iColumn, psd);
 758
 759     if (!psd || iColumn >= MYCOMPUTERSHELLVIEWCOLUMNS)
 760         return E_INVALIDARG;
 761
 762     if (!pidl)
 763     {
 764         psd->fmt = MyComputerSFHeader[iColumn].fmt;
 765         psd->cxChar = MyComputerSFHeader[iColumn].cxChar;
 766         psd->str.uType = STRRET_CSTR;
 767         LoadStringA (shell32_hInstance, MyComputerSFHeader[iColumn].colnameid,
 768                      psd->str.u.cStr, MAX_PATH);
 769         return S_OK;
 770     }
 771     else
 772     {
 773         char szPath[MAX_PATH];
 774         ULARGE_INTEGER ulBytes;
 775
 776         psd->str.u.cStr[0] = 0x00;
 777         psd->str.uType = STRRET_CSTR;
 778         switch (iColumn)
 779         {
 780         case 0:        /* name */
 781             hr = IShellFolder_GetDisplayNameOf (iface, pidl,
 782                        SHGDN_NORMAL | SHGDN_INFOLDER, &psd->str);
 783             break;
 784         case 1:        /* type */
 785             _ILGetFileType (pidl, psd->str.u.cStr, MAX_PATH);
 786             break;
 787         case 2:        /* total size */
 788             if (_ILIsDrive (pidl))
 789             {
 790                 _ILSimpleGetText (pidl, szPath, MAX_PATH);
 791                 GetDiskFreeSpaceExA (szPath, NULL, &ulBytes, NULL);
 792                 StrFormatByteSizeA (ulBytes.u.LowPart, psd->str.u.cStr, MAX_PATH);
 793             }
 794             break;
 795         case 3:        /* free size */
 796             if (_ILIsDrive (pidl))
 797             {
 798                 _ILSimpleGetText (pidl, szPath, MAX_PATH);
 799                 GetDiskFreeSpaceExA (szPath, &ulBytes, NULL, NULL);
 800                 StrFormatByteSizeA (ulBytes.u.LowPart, psd->str.u.cStr, MAX_PATH);
 801             }
 802             break;
 803         }
 804         hr = S_OK;
 805     }
 806
 807     return hr;
 808 }
 809
 810 static HRESULT WINAPI ISF_MyComputer_fnMapColumnToSCID (
 811                IShellFolder2 * iface, UINT column, SHCOLUMNID * pscid)
 812 {
 813     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 814     FIXME ("(%p)\n", This);
 815     return E_NOTIMPL;
 816 }
 817
 818 static IShellFolder2Vtbl vt_ShellFolder2 =
 819 {
 820     ISF_MyComputer_fnQueryInterface,
 821     ISF_MyComputer_fnAddRef,
 822     ISF_MyComputer_fnRelease,
 823     ISF_MyComputer_fnParseDisplayName,
 824     ISF_MyComputer_fnEnumObjects,
 825     ISF_MyComputer_fnBindToObject,
 826     ISF_MyComputer_fnBindToStorage,
 827     ISF_MyComputer_fnCompareIDs,
 828     ISF_MyComputer_fnCreateViewObject,
 829     ISF_MyComputer_fnGetAttributesOf,
 830     ISF_MyComputer_fnGetUIObjectOf,
 831     ISF_MyComputer_fnGetDisplayNameOf,
 832     ISF_MyComputer_fnSetNameOf,
 833     /* ShellFolder2 */
 834     ISF_MyComputer_fnGetDefaultSearchGUID,
 835     ISF_MyComputer_fnEnumSearches,
 836     ISF_MyComputer_fnGetDefaultColumn,
 837     ISF_MyComputer_fnGetDefaultColumnState,
 838     ISF_MyComputer_fnGetDetailsEx,
 839     ISF_MyComputer_fnGetDetailsOf,
 840     ISF_MyComputer_fnMapColumnToSCID
 841 };
 842
 843 /************************************************************************
 844  *    IMCFldr_PersistFolder2_QueryInterface
 845  */
 846 static HRESULT WINAPI IMCFldr_PersistFolder2_QueryInterface (
 847                IPersistFolder2 * iface, REFIID iid, LPVOID * ppvObj)
 848 {
 849     _ICOM_THIS_From_IPersistFolder2 (IGenericSFImpl, iface);
 850
 851     TRACE ("(%p)\n", This);
 852
 853     return IUnknown_QueryInterface (_IUnknown_ (This), iid, ppvObj);
 854 }
 855
 856 /************************************************************************
 857  *    IMCFldr_PersistFolder2_AddRef
 858  */
 859 static ULONG WINAPI IMCFldr_PersistFolder2_AddRef (IPersistFolder2 * iface)
 860 {
 861     _ICOM_THIS_From_IPersistFolder2 (IGenericSFImpl, iface);
 862
 863     TRACE ("(%p)->(count=%lu)\n", This, This->ref);
 864
 865     return IUnknown_AddRef (_IUnknown_ (This));
 866 }
 867
 868 /************************************************************************
 869  *    ISFPersistFolder_Release
 870  */
 871 static ULONG WINAPI IMCFldr_PersistFolder2_Release (IPersistFolder2 * iface)
 872 {
 873     _ICOM_THIS_From_IPersistFolder2 (IGenericSFImpl, iface);
 874
 875     TRACE ("(%p)->(count=%lu)\n", This, This->ref);
 876
 877     return IUnknown_Release (_IUnknown_ (This));
 878 }
 879
 880 /************************************************************************
 881  *    IMCFldr_PersistFolder2_GetClassID
 882  */
 883 static HRESULT WINAPI IMCFldr_PersistFolder2_GetClassID (
 884                IPersistFolder2 * iface, CLSID * lpClassId)
 885 {
 886     _ICOM_THIS_From_IPersistFolder2 (IGenericSFImpl, iface);
 887
 888     TRACE ("(%p)\n", This);
 889
 890     if (!lpClassId)
 891     return E_POINTER;
 892     *lpClassId = CLSID_MyComputer;
 893
 894     return S_OK;
 895 }
 896
 897 /************************************************************************
 898  *    IMCFldr_PersistFolder2_Initialize
 899  *
 900  * NOTES: it makes no sense to change the pidl
 901  */
 902 static HRESULT WINAPI IMCFldr_PersistFolder2_Initialize (
 903                IPersistFolder2 * iface, LPCITEMIDLIST pidl)
 904 {
 905     _ICOM_THIS_From_IPersistFolder2 (IGenericSFImpl, iface);
 906     TRACE ("(%p)->(%p)\n", This, pidl);
 907     return E_NOTIMPL;
 908 }
 909
 910 /**************************************************************************
 911  *    IPersistFolder2_fnGetCurFolder
 912  */
 913 static HRESULT WINAPI IMCFldr_PersistFolder2_GetCurFolder (
 914                IPersistFolder2 * iface, LPITEMIDLIST * pidl)
 915 {
 916     _ICOM_THIS_From_IPersistFolder2 (IGenericSFImpl, iface);
 917
 918     TRACE ("(%p)->(%p)\n", This, pidl);
 919
 920     if (!pidl)
 921         return E_POINTER;
 922     *pidl = ILClone (This->pidlRoot);
 923     return S_OK;
 924 }
 925
 926 static IPersistFolder2Vtbl vt_PersistFolder2 =
 927 {
 928     IMCFldr_PersistFolder2_QueryInterface,
 929     IMCFldr_PersistFolder2_AddRef,
 930     IMCFldr_PersistFolder2_Release,
 931     IMCFldr_PersistFolder2_GetClassID,
 932     IMCFldr_PersistFolder2_Initialize,
 933     IMCFldr_PersistFolder2_GetCurFolder
 934 };