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     const IShellFolder2Vtbl   *lpVtbl;
  59     LONG                ref;
  60     const IPersistFolder2Vtbl *lpVtblPersistFolder2;
  61
  62     /* both paths are parsible from the desktop */
  63     LPITEMIDLIST pidlRoot;    /* absolute pidl */
  64 } IGenericSFImpl;
  65
  66 static const IShellFolder2Vtbl vt_ShellFolder2;
  67 static const IPersistFolder2Vtbl vt_PersistFolder2;
  68
  69 static inline IGenericSFImpl *impl_from_IPersistFolder2( IPersistFolder2 *iface )
  70 {
  71     return (IGenericSFImpl *)((char*)iface - FIELD_OFFSET(IGenericSFImpl, lpVtblPersistFolder2));
  72 }
  73
  74
  75 /*
  76   converts This to an interface pointer
  77 */
  78 #define _IUnknown_(This)    (IUnknown*)&(This->lpVtbl)
  79 #define _IShellFolder_(This)    (IShellFolder*)&(This->lpVtbl)
  80 #define _IShellFolder2_(This)    (IShellFolder2*)&(This->lpVtbl)
  81
  82 #define _IPersist_(This)    (IPersist*)&(This->lpVtblPersistFolder2)
  83 #define _IPersistFolder_(This)    (IPersistFolder*)&(This->lpVtblPersistFolder2)
  84 #define _IPersistFolder2_(This)    (IPersistFolder2*)&(This->lpVtblPersistFolder2)
  85
  86 /***********************************************************************
  87 *   IShellFolder [MyComputer] implementation
  88 */
  89
  90 static const shvheader MyComputerSFHeader[] = {
  91     {IDS_SHV_COLUMN1, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 15},
  92     {IDS_SHV_COLUMN3, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
  93     {IDS_SHV_COLUMN6, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
  94     {IDS_SHV_COLUMN7, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
  95 };
  96
  97 #define MYCOMPUTERSHELLVIEWCOLUMNS 4
  98
  99 /**************************************************************************
 100 *    ISF_MyComputer_Constructor
 101 */
 102 HRESULT WINAPI ISF_MyComputer_Constructor (IUnknown * pUnkOuter, REFIID riid, LPVOID * ppv)
 103 {
 104     IGenericSFImpl *sf;
 105
 106     TRACE ("unkOut=%p %s\n", pUnkOuter, shdebugstr_guid (riid));
 107
 108     if (!ppv)
 109         return E_POINTER;
 110     if (pUnkOuter)
 111         return CLASS_E_NOAGGREGATION;
 112
 113     sf = LocalAlloc (LMEM_ZEROINIT, sizeof (IGenericSFImpl));
 114     if (!sf)
 115         return E_OUTOFMEMORY;
 116
 117     sf->ref = 0;
 118     sf->lpVtbl = &vt_ShellFolder2;
 119     sf->lpVtblPersistFolder2 = &vt_PersistFolder2;
 120     sf->pidlRoot = _ILCreateMyComputer ();    /* my qualified pidl */
 121
 122     if (!SUCCEEDED (IUnknown_QueryInterface (_IUnknown_ (sf), riid, ppv)))
 123     {
 124         IUnknown_Release (_IUnknown_ (sf));
 125         return E_NOINTERFACE;
 126     }
 127
 128     TRACE ("--(%p)\n", sf);
 129     return S_OK;
 130 }
 131
 132 /**************************************************************************
 133  *    ISF_MyComputer_fnQueryInterface
 134  *
 135  * NOTES supports not IPersist/IPersistFolder
 136  */
 137 static HRESULT WINAPI ISF_MyComputer_fnQueryInterface (IShellFolder2 *iface,
 138                REFIID riid, LPVOID *ppvObj)
 139 {
 140     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 141
 142     TRACE ("(%p)->(%s,%p)\n", This, shdebugstr_guid (riid), ppvObj);
 143
 144     *ppvObj = NULL;
 145
 146     if (IsEqualIID (riid, &IID_IUnknown) ||
 147         IsEqualIID (riid, &IID_IShellFolder) ||
 148         IsEqualIID (riid, &IID_IShellFolder2))
 149     {
 150         *ppvObj = This;
 151     }
 152     else if (IsEqualIID (riid, &IID_IPersist) ||
 153              IsEqualIID (riid, &IID_IPersistFolder) ||
 154              IsEqualIID (riid, &IID_IPersistFolder2))
 155     {
 156         *ppvObj = _IPersistFolder2_ (This);
 157     }
 158
 159     if (*ppvObj)
 160     {
 161         IUnknown_AddRef ((IUnknown *) (*ppvObj));
 162         TRACE ("-- Interface: (%p)->(%p)\n", ppvObj, *ppvObj);
 163         return S_OK;
 164     }
 165     TRACE ("-- Interface: E_NOINTERFACE\n");
 166     return E_NOINTERFACE;
 167 }
 168
 169 static ULONG WINAPI ISF_MyComputer_fnAddRef (IShellFolder2 * iface)
 170 {
 171     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 172     ULONG refCount = InterlockedIncrement(&This->ref);
 173
 174     TRACE ("(%p)->(count=%lu)\n", This, refCount - 1);
 175
 176     return refCount;
 177 }
 178
 179 static ULONG WINAPI ISF_MyComputer_fnRelease (IShellFolder2 * iface)
 180 {
 181     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 182     ULONG refCount = InterlockedDecrement(&This->ref);
 183
 184     TRACE ("(%p)->(count=%lu)\n", This, refCount + 1);
 185
 186     if (!refCount)
 187     {
 188         TRACE ("-- destroying IShellFolder(%p)\n", This);
 189         if (This->pidlRoot)
 190             SHFree (This->pidlRoot);
 191         LocalFree ((HLOCAL) This);
 192     }
 193     return refCount;
 194 }
 195
 196 /**************************************************************************
 197 *    ISF_MyComputer_fnParseDisplayName
 198 */
 199 static HRESULT WINAPI ISF_MyComputer_fnParseDisplayName (IShellFolder2 *iface,
 200                HWND hwndOwner, LPBC pbc, LPOLESTR lpszDisplayName,
 201                DWORD * pchEaten, LPITEMIDLIST * ppidl, DWORD * pdwAttributes)
 202 {
 203     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 204     HRESULT hr = E_INVALIDARG;
 205     LPCWSTR szNext = NULL;
 206     WCHAR szElement[MAX_PATH];
 207     LPITEMIDLIST pidlTemp = NULL;
 208     CLSID clsid;
 209
 210     TRACE("(%p)->(HWND=%p,%p,%p=%s,%p,pidl=%p,%p)\n", This,
 211           hwndOwner, pbc, lpszDisplayName, debugstr_w (lpszDisplayName),
 212           pchEaten, ppidl, pdwAttributes);
 213
 214     *ppidl = 0;
 215     if (pchEaten)
 216         *pchEaten = 0;        /* strange but like the original */
 217
 218     /* handle CLSID paths */
 219     if (lpszDisplayName[0] == ':' && lpszDisplayName[1] == ':')
 220     {
 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     }
 226     /* do we have an absolute path name ? */
 227     else if (PathGetDriveNumberW (lpszDisplayName) >= 0 &&
 228               lpszDisplayName[2] == (WCHAR) '\\')
 229     {
 230         szNext = GetNextElementW (lpszDisplayName, szElement, MAX_PATH);
 231         /* make drive letter uppercase to enable PIDL comparison */
 232         szElement[0] = toupper(szElement[0]);
 233         pidlTemp = _ILCreateDrive (szElement);
 234     }
 235
 236     if (szNext && *szNext)
 237     {
 238         hr = SHELL32_ParseNextElement (iface, hwndOwner, pbc, &pidlTemp,
 239                               (LPOLESTR) szNext, pchEaten, pdwAttributes);
 240     }
 241     else
 242     {
 243         if (pdwAttributes && *pdwAttributes)
 244             SHELL32_GetItemAttributes (_IShellFolder_ (This),
 245                                        pidlTemp, pdwAttributes);
 246         hr = S_OK;
 247     }
 248
 249     *ppidl = pidlTemp;
 250
 251     TRACE ("(%p)->(-- ret=0x%08lx)\n", This, hr);
 252
 253     return hr;
 254 }
 255
 256 /**************************************************************************
 257  *  CreateMyCompEnumList()
 258  */
 259 static const WCHAR MyComputer_NameSpaceW[] = { 'S','O','F','T','W','A','R','E',
 260  '\\','M','i','c','r','o','s','o','f','t','\\','W','i','n','d','o','w','s','\\',
 261  'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\','E','x','p','l',
 262  'o','r','e','r','\\','M','y','C','o','m','p','u','t','e','r','\\','N','a','m',
 263  'e','s','p','a','c','e','\0' };
 264
 265 static BOOL CreateMyCompEnumList(IEnumIDList *list, DWORD dwFlags)
 266 {
 267     BOOL ret = TRUE;
 268
 269     TRACE("(%p)->(flags=0x%08lx)\n", list, dwFlags);
 270
 271     /* enumerate the folders */
 272     if (dwFlags & SHCONTF_FOLDERS)
 273     {
 274         WCHAR wszDriveName[] = {'A', ':', '\\', '\0'};
 275         DWORD dwDrivemap = GetLogicalDrives();
 276         HKEY hkey;
 277         UINT i;
 278
 279         while (ret && wszDriveName[0]<='Z')
 280         {
 281             if(dwDrivemap & 0x00000001L)
 282                 ret = AddToEnumList(list, _ILCreateDrive(wszDriveName));
 283             wszDriveName[0]++;
 284             dwDrivemap = dwDrivemap >> 1;
 285         }
 286
 287         TRACE("-- (%p)-> enumerate (mycomputer shell extensions)\n",list);
 288         for (i=0; i<2; i++) {
 289             if (ret && !RegOpenKeyExW(i == 0 ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER,
 290                                       MyComputer_NameSpaceW, 0, KEY_READ, &hkey))
 291             {
 292                 WCHAR iid[50];
 293                 int i=0;
 294
 295                 while (ret)
 296                 {
 297                     DWORD size;
 298                     LONG r;
 299
 300                     size = sizeof(iid) / sizeof(iid[0]);
 301                     r = RegEnumKeyExW(hkey, i, iid, &size, 0, NULL, NULL, NULL);
 302                     if (ERROR_SUCCESS == r)
 303                     {
 304                         /* FIXME: shell extensions, shouldn't the type be
 305                          * PT_SHELLEXT? */
 306                         ret = AddToEnumList(list, _ILCreateGuidFromStrW(iid));
 307                         i++;
 308                     }
 309                     else if (ERROR_NO_MORE_ITEMS == r)
 310                         break;
 311                     else
 312                         ret = FALSE;
 313                 }
 314                 RegCloseKey(hkey);
 315             }
 316         }
 317     }
 318     return ret;
 319 }
 320
 321 /**************************************************************************
 322 *        ISF_MyComputer_fnEnumObjects
 323 */
 324 static HRESULT WINAPI ISF_MyComputer_fnEnumObjects (IShellFolder2 *iface,
 325                HWND hwndOwner, DWORD dwFlags, LPENUMIDLIST *ppEnumIDList)
 326 {
 327     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 328
 329     TRACE("(%p)->(HWND=%p flags=0x%08lx pplist=%p)\n", This,
 330           hwndOwner, dwFlags, ppEnumIDList);
 331
 332     *ppEnumIDList = IEnumIDList_Constructor();
 333     if (*ppEnumIDList)
 334         CreateMyCompEnumList(*ppEnumIDList, dwFlags);
 335
 336     TRACE ("-- (%p)->(new ID List: %p)\n", This, *ppEnumIDList);
 337
 338     return (*ppEnumIDList) ? S_OK : E_OUTOFMEMORY;
 339 }
 340
 341 /**************************************************************************
 342 *        ISF_MyComputer_fnBindToObject
 343 */
 344 static HRESULT WINAPI ISF_MyComputer_fnBindToObject (IShellFolder2 *iface,
 345                LPCITEMIDLIST pidl, LPBC pbcReserved, REFIID riid, LPVOID *ppvOut)
 346 {
 347     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 348
 349     TRACE("(%p)->(pidl=%p,%p,%s,%p)\n", This,
 350           pidl, pbcReserved, shdebugstr_guid (riid), ppvOut);
 351
 352     return SHELL32_BindToChild (This->pidlRoot, NULL, pidl, riid, ppvOut);
 353 }
 354
 355 /**************************************************************************
 356 *    ISF_MyComputer_fnBindToStorage
 357 */
 358 static HRESULT WINAPI ISF_MyComputer_fnBindToStorage (IShellFolder2 * iface,
 359                LPCITEMIDLIST pidl, LPBC pbcReserved, REFIID riid, LPVOID *ppvOut)
 360 {
 361     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 362
 363     FIXME("(%p)->(pidl=%p,%p,%s,%p) stub\n", This,
 364           pidl, pbcReserved, shdebugstr_guid (riid), ppvOut);
 365
 366     *ppvOut = NULL;
 367     return E_NOTIMPL;
 368 }
 369
 370 /**************************************************************************
 371 *     ISF_MyComputer_fnCompareIDs
 372 */
 373
 374 static HRESULT WINAPI ISF_MyComputer_fnCompareIDs (IShellFolder2 *iface,
 375                LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 376 {
 377     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 378     int nReturn;
 379
 380     TRACE ("(%p)->(0x%08lx,pidl1=%p,pidl2=%p)\n", This, lParam, pidl1, pidl2);
 381     nReturn = SHELL32_CompareIDs (_IShellFolder_ (This), lParam, pidl1, pidl2);
 382     TRACE ("-- %i\n", nReturn);
 383     return nReturn;
 384 }
 385
 386 /**************************************************************************
 387 *    ISF_MyComputer_fnCreateViewObject
 388 */
 389 static HRESULT WINAPI ISF_MyComputer_fnCreateViewObject (IShellFolder2 *iface,
 390                HWND hwndOwner, REFIID riid, LPVOID * ppvOut)
 391 {
 392     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 393     LPSHELLVIEW pShellView;
 394     HRESULT hr = E_INVALIDARG;
 395
 396     TRACE("(%p)->(hwnd=%p,%s,%p)\n", This,
 397           hwndOwner, shdebugstr_guid (riid), ppvOut);
 398
 399     if (!ppvOut)
 400         return hr;
 401
 402     *ppvOut = NULL;
 403
 404     if (IsEqualIID (riid, &IID_IDropTarget))
 405     {
 406         WARN ("IDropTarget not implemented\n");
 407         hr = E_NOTIMPL;
 408     }
 409     else if (IsEqualIID (riid, &IID_IContextMenu))
 410     {
 411         WARN ("IContextMenu not implemented\n");
 412         hr = E_NOTIMPL;
 413     }
 414     else if (IsEqualIID (riid, &IID_IShellView))
 415     {
 416         pShellView = IShellView_Constructor ((IShellFolder *) iface);
 417         if (pShellView)
 418         {
 419             hr = IShellView_QueryInterface (pShellView, riid, ppvOut);
 420             IShellView_Release (pShellView);
 421         }
 422     }
 423     TRACE ("-- (%p)->(interface=%p)\n", This, ppvOut);
 424     return hr;
 425 }
 426
 427 /**************************************************************************
 428 *  ISF_MyComputer_fnGetAttributesOf
 429 */
 430 static HRESULT WINAPI ISF_MyComputer_fnGetAttributesOf (IShellFolder2 * iface,
 431                 UINT cidl, LPCITEMIDLIST * apidl, DWORD * rgfInOut)
 432 {
 433     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 434     HRESULT hr = S_OK;
 435
 436     TRACE ("(%p)->(cidl=%d apidl=%p mask=%p (0x%08lx))\n",
 437            This, cidl, apidl, rgfInOut, rgfInOut ? *rgfInOut : 0);
 438
 439     if (!rgfInOut)
 440         return E_INVALIDARG;
 441     if (cidl && !apidl)
 442         return E_INVALIDARG;
 443
 444     if (*rgfInOut == 0)
 445         *rgfInOut = ~0;
 446
 447     if(cidl == 0){
 448         IShellFolder *psfParent = NULL;
 449         LPCITEMIDLIST rpidl = NULL;
 450
 451         hr = SHBindToParent(This->pidlRoot, &IID_IShellFolder, (LPVOID*)&psfParent, (LPCITEMIDLIST*)&rpidl);
 452         if(SUCCEEDED(hr)) {
 453             SHELL32_GetItemAttributes (psfParent, rpidl, rgfInOut);
 454             IShellFolder_Release(psfParent);
 455         }
 456     } else {
 457         while (cidl > 0 && *apidl) {
 458             pdump (*apidl);
 459             SHELL32_GetItemAttributes (_IShellFolder_ (This), *apidl, rgfInOut);
 460             apidl++;
 461             cidl--;
 462         }
 463     }
 464     /* make sure SFGAO_VALIDATE is cleared, some apps depend on that */
 465     *rgfInOut &= ~SFGAO_VALIDATE;
 466
 467     TRACE ("-- result=0x%08lx\n", *rgfInOut);
 468     return hr;
 469 }
 470
 471 /**************************************************************************
 472 *    ISF_MyComputer_fnGetUIObjectOf
 473 *
 474 * PARAMETERS
 475 *  hwndOwner [in]  Parent window for any output
 476 *  cidl      [in]  array size
 477 *  apidl     [in]  simple pidl array
 478 *  riid      [in]  Requested Interface
 479 *  prgfInOut [   ] reserved
 480 *  ppvObject [out] Resulting Interface
 481 *
 482 */
 483 static HRESULT WINAPI ISF_MyComputer_fnGetUIObjectOf (IShellFolder2 * iface,
 484                 HWND hwndOwner, UINT cidl, LPCITEMIDLIST * apidl, REFIID riid,
 485                 UINT * prgfInOut, LPVOID * ppvOut)
 486 {
 487     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 488
 489     LPITEMIDLIST pidl;
 490     IUnknown *pObj = NULL;
 491     HRESULT hr = E_INVALIDARG;
 492
 493     TRACE("(%p)->(%p,%u,apidl=%p,%s,%p,%p)\n", This,
 494           hwndOwner, cidl, apidl, shdebugstr_guid (riid), prgfInOut, ppvOut);
 495
 496     if (!ppvOut)
 497         return hr;
 498
 499     *ppvOut = NULL;
 500
 501     if (IsEqualIID (riid, &IID_IContextMenu) && (cidl >= 1))
 502     {
 503         pObj = (LPUNKNOWN) ISvItemCm_Constructor ((IShellFolder *) iface,
 504                                               This->pidlRoot, apidl, cidl);
 505         hr = S_OK;
 506     }
 507     else if (IsEqualIID (riid, &IID_IDataObject) && (cidl >= 1))
 508     {
 509         pObj = (LPUNKNOWN) IDataObject_Constructor (hwndOwner,
 510                                               This->pidlRoot, apidl, cidl);
 511         hr = S_OK;
 512     }
 513     else if (IsEqualIID (riid, &IID_IExtractIconA) && (cidl == 1))
 514     {
 515         pidl = ILCombine (This->pidlRoot, apidl[0]);
 516         pObj = (LPUNKNOWN) IExtractIconA_Constructor (pidl);
 517         SHFree (pidl);
 518         hr = S_OK;
 519     }
 520     else if (IsEqualIID (riid, &IID_IExtractIconW) && (cidl == 1))
 521     {
 522         pidl = ILCombine (This->pidlRoot, apidl[0]);
 523         pObj = (LPUNKNOWN) IExtractIconW_Constructor (pidl);
 524         SHFree (pidl);
 525         hr = S_OK;
 526     }
 527     else if (IsEqualIID (riid, &IID_IDropTarget) && (cidl >= 1))
 528     {
 529         hr = IShellFolder_QueryInterface (iface, &IID_IDropTarget,
 530                                           (LPVOID *) &pObj);
 531     }
 532     else if ((IsEqualIID(riid,&IID_IShellLinkW) ||
 533               IsEqualIID(riid,&IID_IShellLinkA)) && (cidl == 1))
 534     {
 535         pidl = ILCombine (This->pidlRoot, apidl[0]);
 536         hr = IShellLink_ConstructFromFile(NULL, riid, pidl, (LPVOID*) &pObj);
 537         SHFree (pidl);
 538     }
 539     else
 540         hr = E_NOINTERFACE;
 541
 542     if (SUCCEEDED(hr) && !pObj)
 543         hr = E_OUTOFMEMORY;
 544
 545     *ppvOut = pObj;
 546     TRACE ("(%p)->hr=0x%08lx\n", This, hr);
 547     return hr;
 548 }
 549
 550 /**************************************************************************
 551 *    ISF_MyComputer_fnGetDisplayNameOf
 552 */
 553 static HRESULT WINAPI ISF_MyComputer_fnGetDisplayNameOf (IShellFolder2 *iface,
 554                LPCITEMIDLIST pidl, DWORD dwFlags, LPSTRRET strRet)
 555 {
 556     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 557
 558     char szPath[MAX_PATH];
 559     HRESULT hr = S_OK;
 560
 561     TRACE ("(%p)->(pidl=%p,0x%08lx,%p)\n", This, pidl, dwFlags, strRet);
 562     pdump (pidl);
 563
 564     if (!strRet)
 565         return E_INVALIDARG;
 566
 567     szPath[0] = 0x00;
 568
 569     if (!pidl->mkid.cb)
 570     {
 571         /* parsing name like ::{...} */
 572         lstrcpyA (szPath, "::");
 573         SHELL32_GUIDToStringA(&CLSID_MyComputer, &szPath[2]);
 574     }
 575     else if (_ILIsPidlSimple(pidl))
 576     {
 577         /* take names of special folders only if its only this folder */
 578         if (_ILIsSpecialFolder(pidl))
 579         {
 580             GUID const *clsid;
 581
 582             clsid = _ILGetGUIDPointer (pidl);
 583             if (clsid)
 584             {
 585                 if (GET_SHGDN_FOR (dwFlags) & SHGDN_FORPARSING)
 586                 {
 587                     static const WCHAR clsidW[] =
 588                      { 'C','L','S','I','D','\\',0 };
 589                     static const WCHAR shellfolderW[] =
 590                      { '\\','s','h','e','l','l','f','o','l','d','e','r',0 };
 591                     static const WCHAR wantsForParsingW[] =
 592                      { 'W','a','n','t','s','F','o','r','P','a','r','s','i','n',
 593                      'g',0 };
 594                     int bWantsForParsing = FALSE;
 595                     WCHAR szRegPath[100];
 596                     LONG r;
 597
 598                     /*
 599                      * We can only get a filesystem path from a shellfolder
 600                      * if the value WantsFORPARSING exists in
 601                      *      CLSID\\{...}\\shellfolder
 602                      * exception: the MyComputer folder has this keys not
 603                      *            but like any filesystem backed
 604                      *            folder it needs these behaviour
 605                      *
 606                      * Get the "WantsFORPARSING" flag from the registry
 607                      */
 608
 609                     lstrcpyW (szRegPath, clsidW);
 610                     SHELL32_GUIDToStringW (clsid, &szRegPath[6]);
 611                     lstrcatW (szRegPath, shellfolderW);
 612                     r = SHGetValueW (HKEY_CLASSES_ROOT, szRegPath,
 613                                      wantsForParsingW, NULL, NULL, NULL);
 614                     if (r == ERROR_SUCCESS)
 615                         bWantsForParsing = TRUE;
 616
 617                     if ((GET_SHGDN_RELATION (dwFlags) == SHGDN_NORMAL) &&
 618                         bWantsForParsing)
 619                     {
 620                         WCHAR wszPath[MAX_PATH];
 621                         /*
 622                          * We need the filesystem path to the destination folder
 623                          * Only the folder itself can know it
 624                          */
 625                         hr = SHELL32_GetDisplayNameOfChild (iface, pidl,
 626                                                 dwFlags, wszPath, MAX_PATH);
 627                         if (SUCCEEDED(hr))
 628                         {
 629                             if (!WideCharToMultiByte(CP_ACP, 0, wszPath, -1, szPath, MAX_PATH,
 630                                                      NULL, NULL))
 631                                 wszPath[0] = '\0';
 632                         }
 633                     }
 634                     else
 635                     {
 636                         LPSTR p;
 637
 638                         /* parsing name like ::{...} */
 639                         p = lstrcpyA(szPath, "::") + 2;
 640                         p += SHELL32_GUIDToStringA(&CLSID_MyComputer, p);
 641
 642                         lstrcatA(p, "\\::");
 643                         p += 3;
 644                         SHELL32_GUIDToStringA(clsid, p);
 645                     }
 646                 }
 647                 else
 648                 {
 649                     /* user friendly name */
 650                     HCR_GetClassNameA (clsid, szPath, MAX_PATH);
 651                 }
 652             }
 653             else
 654             {
 655                 /* append my own path */
 656                 _ILSimpleGetText (pidl, szPath, MAX_PATH);
 657             }
 658         }
 659         else if (_ILIsDrive(pidl))
 660         {
 661             _ILSimpleGetText (pidl, szPath, MAX_PATH);    /* append my own path */
 662
 663             /* long view "lw_name (C:)" */
 664             if (!(dwFlags & SHGDN_FORPARSING))
 665             {
 666                 DWORD dwVolumeSerialNumber, dwMaximumComponetLength, dwFileSystemFlags;
 667                 char szDrive[18] = "";
 668
 669                 GetVolumeInformationA (szPath, szDrive, sizeof (szDrive) - 6,
 670                            &dwVolumeSerialNumber,
 671                            &dwMaximumComponetLength, &dwFileSystemFlags, NULL, 0);
 672                 strcat (szDrive, " (");
 673                 strncat (szDrive, szPath, 2);
 674                 strcat (szDrive, ")");
 675                 strcpy (szPath, szDrive);
 676             }
 677         }
 678         else
 679         {
 680             /* Neither a shell namespace extension nor a drive letter. */
 681             ERR("Wrong pidl type\n");
 682             return E_INVALIDARG;
 683         }
 684     }
 685     else
 686     {
 687         WCHAR wszPath[MAX_PATH];
 688         /* Complex pidl. Let the child folder do the work */
 689         strRet->uType = STRRET_CSTR;
 690         hr = SHELL32_GetDisplayNameOfChild(iface, pidl, dwFlags, wszPath, MAX_PATH);
 691         if (SUCCEEDED(hr))
 692         {
 693             if (!WideCharToMultiByte(CP_ACP, 0, wszPath, -1, szPath, MAX_PATH,
 694                                      NULL, NULL))
 695                 wszPath[0] = '\0';
 696         }
 697     }
 698
 699     if (SUCCEEDED (hr))
 700     {
 701         strRet->uType = STRRET_CSTR;
 702         lstrcpynA (strRet->u.cStr, szPath, MAX_PATH);
 703     }
 704
 705     TRACE ("-- (%p)->(%s)\n", This, szPath);
 706     return hr;
 707 }
 708
 709 /**************************************************************************
 710 *  ISF_MyComputer_fnSetNameOf
 711 *  Changes the name of a file object or subfolder, possibly changing its item
 712 *  identifier in the process.
 713 *
 714 * PARAMETERS
 715 *  hwndOwner  [in]   Owner window for output
 716 *  pidl       [in]   simple pidl of item to change
 717 *  lpszName   [in]   the items new display name
 718 *  dwFlags    [in]   SHGNO formatting flags
 719 *  ppidlOut   [out]  simple pidl returned
 720 */
 721 static HRESULT WINAPI ISF_MyComputer_fnSetNameOf (
 722                IShellFolder2 * iface, HWND hwndOwner, LPCITEMIDLIST pidl,
 723                LPCOLESTR lpName, DWORD dwFlags, LPITEMIDLIST * pPidlOut)
 724 {
 725     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 726     FIXME ("(%p)->(%p,pidl=%p,%s,%lu,%p)\n", This,
 727            hwndOwner, pidl, debugstr_w (lpName), dwFlags, pPidlOut);
 728     return E_FAIL;
 729 }
 730
 731 static HRESULT WINAPI ISF_MyComputer_fnGetDefaultSearchGUID (
 732                IShellFolder2 * iface, GUID * pguid)
 733 {
 734     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 735     FIXME ("(%p)\n", This);
 736     return E_NOTIMPL;
 737 }
 738 static HRESULT WINAPI ISF_MyComputer_fnEnumSearches (
 739                IShellFolder2 * iface, IEnumExtraSearch ** ppenum)
 740 {
 741     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 742     FIXME ("(%p)\n", This);
 743     return E_NOTIMPL;
 744 }
 745 static HRESULT WINAPI ISF_MyComputer_fnGetDefaultColumn (
 746                IShellFolder2 *iface, DWORD dwRes, ULONG *pSort, ULONG *pDisplay)
 747 {
 748     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 749
 750     TRACE ("(%p)\n", This);
 751
 752     if (pSort)
 753          *pSort = 0;
 754     if (pDisplay)
 755         *pDisplay = 0;
 756     return S_OK;
 757 }
 758 static HRESULT WINAPI ISF_MyComputer_fnGetDefaultColumnState (
 759                IShellFolder2 * iface, UINT iColumn, DWORD * pcsFlags)
 760 {
 761     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 762
 763     TRACE ("(%p)\n", This);
 764
 765     if (!pcsFlags || iColumn >= MYCOMPUTERSHELLVIEWCOLUMNS)
 766         return E_INVALIDARG;
 767     *pcsFlags = MyComputerSFHeader[iColumn].pcsFlags;
 768     return S_OK;
 769 }
 770
 771 static HRESULT WINAPI ISF_MyComputer_fnGetDetailsEx (IShellFolder2 * iface,
 772                LPCITEMIDLIST pidl, const SHCOLUMNID * pscid, VARIANT * pv)
 773 {
 774     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 775     FIXME ("(%p)\n", This);
 776     return E_NOTIMPL;
 777 }
 778
 779 /* FIXME: drive size >4GB is rolling over */
 780 static HRESULT WINAPI ISF_MyComputer_fnGetDetailsOf (IShellFolder2 * iface,
 781                LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS * psd)
 782 {
 783     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 784     HRESULT hr;
 785
 786     TRACE ("(%p)->(%p %i %p)\n", This, pidl, iColumn, psd);
 787
 788     if (!psd || iColumn >= MYCOMPUTERSHELLVIEWCOLUMNS)
 789         return E_INVALIDARG;
 790
 791     if (!pidl)
 792     {
 793         psd->fmt = MyComputerSFHeader[iColumn].fmt;
 794         psd->cxChar = MyComputerSFHeader[iColumn].cxChar;
 795         psd->str.uType = STRRET_CSTR;
 796         LoadStringA (shell32_hInstance, MyComputerSFHeader[iColumn].colnameid,
 797                      psd->str.u.cStr, MAX_PATH);
 798         return S_OK;
 799     }
 800     else
 801     {
 802         char szPath[MAX_PATH];
 803         ULARGE_INTEGER ulBytes;
 804
 805         psd->str.u.cStr[0] = 0x00;
 806         psd->str.uType = STRRET_CSTR;
 807         switch (iColumn)
 808         {
 809         case 0:        /* name */
 810             hr = IShellFolder_GetDisplayNameOf (iface, pidl,
 811                        SHGDN_NORMAL | SHGDN_INFOLDER, &psd->str);
 812             break;
 813         case 1:        /* type */
 814             _ILGetFileType (pidl, psd->str.u.cStr, MAX_PATH);
 815             break;
 816         case 2:        /* total size */
 817             if (_ILIsDrive (pidl))
 818             {
 819                 _ILSimpleGetText (pidl, szPath, MAX_PATH);
 820                 GetDiskFreeSpaceExA (szPath, NULL, &ulBytes, NULL);
 821                 StrFormatByteSizeA (ulBytes.u.LowPart, psd->str.u.cStr, MAX_PATH);
 822             }
 823             break;
 824         case 3:        /* free size */
 825             if (_ILIsDrive (pidl))
 826             {
 827                 _ILSimpleGetText (pidl, szPath, MAX_PATH);
 828                 GetDiskFreeSpaceExA (szPath, &ulBytes, NULL, NULL);
 829                 StrFormatByteSizeA (ulBytes.u.LowPart, psd->str.u.cStr, MAX_PATH);
 830             }
 831             break;
 832         }
 833         hr = S_OK;
 834     }
 835
 836     return hr;
 837 }
 838
 839 static HRESULT WINAPI ISF_MyComputer_fnMapColumnToSCID (
 840                IShellFolder2 * iface, UINT column, SHCOLUMNID * pscid)
 841 {
 842     IGenericSFImpl *This = (IGenericSFImpl *)iface;
 843     FIXME ("(%p)\n", This);
 844     return E_NOTIMPL;
 845 }
 846
 847 static const IShellFolder2Vtbl vt_ShellFolder2 =
 848 {
 849     ISF_MyComputer_fnQueryInterface,
 850     ISF_MyComputer_fnAddRef,
 851     ISF_MyComputer_fnRelease,
 852     ISF_MyComputer_fnParseDisplayName,
 853     ISF_MyComputer_fnEnumObjects,
 854     ISF_MyComputer_fnBindToObject,
 855     ISF_MyComputer_fnBindToStorage,
 856     ISF_MyComputer_fnCompareIDs,
 857     ISF_MyComputer_fnCreateViewObject,
 858     ISF_MyComputer_fnGetAttributesOf,
 859     ISF_MyComputer_fnGetUIObjectOf,
 860     ISF_MyComputer_fnGetDisplayNameOf,
 861     ISF_MyComputer_fnSetNameOf,
 862     /* ShellFolder2 */
 863     ISF_MyComputer_fnGetDefaultSearchGUID,
 864     ISF_MyComputer_fnEnumSearches,
 865     ISF_MyComputer_fnGetDefaultColumn,
 866     ISF_MyComputer_fnGetDefaultColumnState,
 867     ISF_MyComputer_fnGetDetailsEx,
 868     ISF_MyComputer_fnGetDetailsOf,
 869     ISF_MyComputer_fnMapColumnToSCID
 870 };
 871
 872 /************************************************************************
 873  *    IMCFldr_PersistFolder2_QueryInterface
 874  */
 875 static HRESULT WINAPI IMCFldr_PersistFolder2_QueryInterface (
 876                IPersistFolder2 * iface, REFIID iid, LPVOID * ppvObj)
 877 {
 878     IGenericSFImpl *This = impl_from_IPersistFolder2(iface);
 879
 880     TRACE ("(%p)\n", This);
 881
 882     return IUnknown_QueryInterface (_IUnknown_ (This), iid, ppvObj);
 883 }
 884
 885 /************************************************************************
 886  *    IMCFldr_PersistFolder2_AddRef
 887  */
 888 static ULONG WINAPI IMCFldr_PersistFolder2_AddRef (IPersistFolder2 * iface)
 889 {
 890     IGenericSFImpl *This = impl_from_IPersistFolder2(iface);
 891
 892     TRACE ("(%p)->(count=%lu)\n", This, This->ref);
 893
 894     return IUnknown_AddRef (_IUnknown_ (This));
 895 }
 896
 897 /************************************************************************
 898  *    ISFPersistFolder_Release
 899  */
 900 static ULONG WINAPI IMCFldr_PersistFolder2_Release (IPersistFolder2 * iface)
 901 {
 902     IGenericSFImpl *This = impl_from_IPersistFolder2(iface);
 903
 904     TRACE ("(%p)->(count=%lu)\n", This, This->ref);
 905
 906     return IUnknown_Release (_IUnknown_ (This));
 907 }
 908
 909 /************************************************************************
 910  *    IMCFldr_PersistFolder2_GetClassID
 911  */
 912 static HRESULT WINAPI IMCFldr_PersistFolder2_GetClassID (
 913                IPersistFolder2 * iface, CLSID * lpClassId)
 914 {
 915     IGenericSFImpl *This = impl_from_IPersistFolder2(iface);
 916
 917     TRACE ("(%p)\n", This);
 918
 919     if (!lpClassId)
 920     return E_POINTER;
 921     *lpClassId = CLSID_MyComputer;
 922
 923     return S_OK;
 924 }
 925
 926 /************************************************************************
 927  *    IMCFldr_PersistFolder2_Initialize
 928  *
 929  * NOTES: it makes no sense to change the pidl
 930  */
 931 static HRESULT WINAPI IMCFldr_PersistFolder2_Initialize (
 932                IPersistFolder2 * iface, LPCITEMIDLIST pidl)
 933 {
 934     IGenericSFImpl *This = impl_from_IPersistFolder2(iface);
 935     TRACE ("(%p)->(%p)\n", This, pidl);
 936     return E_NOTIMPL;
 937 }
 938
 939 /**************************************************************************
 940  *    IPersistFolder2_fnGetCurFolder
 941  */
 942 static HRESULT WINAPI IMCFldr_PersistFolder2_GetCurFolder (
 943                IPersistFolder2 * iface, LPITEMIDLIST * pidl)
 944 {
 945     IGenericSFImpl *This = impl_from_IPersistFolder2(iface);
 946
 947     TRACE ("(%p)->(%p)\n", This, pidl);
 948
 949     if (!pidl)
 950         return E_POINTER;
 951     *pidl = ILClone (This->pidlRoot);
 952     return S_OK;
 953 }
 954
 955 static const IPersistFolder2Vtbl vt_PersistFolder2 =
 956 {
 957     IMCFldr_PersistFolder2_QueryInterface,
 958     IMCFldr_PersistFolder2_AddRef,
 959     IMCFldr_PersistFolder2_Release,
 960     IMCFldr_PersistFolder2_GetClassID,
 961     IMCFldr_PersistFolder2_Initialize,
 962     IMCFldr_PersistFolder2_GetCurFolder
 963 };