dll/win32/shell32/brsfolder.cpp

   1 /*
   2  * Copyright 1999 Juergen Schmied
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  *
  18  * FIXME:
  19  *  - many memory leaks
  20  *  - many flags unimplemented
  21  *    - implement new dialog style "make new folder" button
  22  *    - implement editbox
  23  *    - implement new dialog style resizing
  24  */
  25
  26 #include <precomp.h>
  27
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  30
  31 typedef struct tagbrowse_info
  32 {
  33     HWND          hWnd;
  34     HWND          hwndTreeView;
  35     LPBROWSEINFOW lpBrowseInfo;
  36     LPITEMIDLIST  pidlRet;
  37 } browse_info;
  38
  39 typedef struct tagTV_ITEMDATA
  40 {
  41    LPSHELLFOLDER lpsfParent; /* IShellFolder of the parent */
  42    LPITEMIDLIST  lpi;        /* PIDL relative to parent */
  43    LPITEMIDLIST  lpifq;      /* Fully qualified PIDL */
  44    IEnumIDList*  pEnumIL;    /* Children iterator */
  45 } TV_ITEMDATA, *LPTV_ITEMDATA;
  46
  47 #define SUPPORTEDFLAGS (BIF_STATUSTEXT | \
  48                         BIF_BROWSEFORCOMPUTER | \
  49                         BIF_RETURNFSANCESTORS | \
  50                         BIF_RETURNONLYFSDIRS | \
  51                         BIF_NONEWFOLDERBUTTON | \
  52                         BIF_NEWDIALOGSTYLE | \
  53                         BIF_BROWSEINCLUDEFILES)
  54
  55 static void FillTreeView(browse_info*, LPSHELLFOLDER,
  56                LPITEMIDLIST, HTREEITEM, IEnumIDList*);
  57 static HTREEITEM InsertTreeViewItem( browse_info*, IShellFolder *,
  58                LPCITEMIDLIST, LPCITEMIDLIST, IEnumIDList*, HTREEITEM);
  59
  60 static const WCHAR szBrowseFolderInfo[] = {
  61     '_','_','W','I','N','E','_',
  62     'B','R','S','F','O','L','D','E','R','D','L','G','_',
  63     'I','N','F','O',0
  64 };
  65
  66 static DWORD __inline BrowseFlagsToSHCONTF(UINT ulFlags)
  67 {
  68     return SHCONTF_FOLDERS | (ulFlags & BIF_BROWSEINCLUDEFILES ? SHCONTF_NONFOLDERS : 0);
  69 }
  70
  71 static void browsefolder_callback( LPBROWSEINFOW lpBrowseInfo, HWND hWnd,
  72                                    UINT msg, LPARAM param )
  73 {
  74     if (!lpBrowseInfo->lpfn)
  75         return;
  76     lpBrowseInfo->lpfn( hWnd, msg, param, lpBrowseInfo->lParam );
  77 }
  78
  79 /******************************************************************************
  80  * InitializeTreeView [Internal]
  81  *
  82  * Called from WM_INITDIALOG handler.
  83  *
  84  * PARAMS
  85  *  hwndParent [I] The BrowseForFolder dialog
  86  *  root       [I] ITEMIDLIST of the root shell folder
  87  */
  88 static void InitializeTreeView( browse_info *info )
  89 {
  90     LPITEMIDLIST pidlParent, pidlChild;
  91     HIMAGELIST hImageList;
  92     HRESULT hr;
  93     IShellFolder *lpsfParent, *lpsfRoot;
  94     IEnumIDList * pEnumChildren = NULL;
  95     HTREEITEM item;
  96     DWORD flags;
  97     LPCITEMIDLIST root = info->lpBrowseInfo->pidlRoot;
  98
  99     TRACE("%p\n", info );
 100
 101     Shell_GetImageLists(NULL, &hImageList);
 102
 103     if (hImageList)
 104         SendMessageW( info->hwndTreeView, TVM_SETIMAGELIST, 0, (LPARAM)hImageList );
 105
 106     /* We want to call InsertTreeViewItem down the code, in order to insert
 107      * the root item of the treeview. Due to InsertTreeViewItem's signature,
 108      * we need the following to do this:
 109      *
 110      * + An ITEMIDLIST corresponding to _the parent_ of root.
 111      * + An ITEMIDLIST, which is a relative path from root's parent to root
 112      *   (containing a single SHITEMID).
 113      * + An IShellFolder interface pointer of root's parent folder.
 114      *
 115      * If root is 'Desktop', then root's parent is also 'Desktop'.
 116      */
 117
 118     pidlParent = ILClone(root);
 119     ILRemoveLastID(pidlParent);
 120     pidlChild = ILClone(ILFindLastID(root));
 121
 122     if (_ILIsDesktop(pidlParent)) {
 123         hr = SHGetDesktopFolder(&lpsfParent);
 124     } else {
 125         IShellFolder *lpsfDesktop;
 126         hr = SHGetDesktopFolder(&lpsfDesktop);
 127         if (!SUCCEEDED(hr)) {
 128             WARN("SHGetDesktopFolder failed! hr = %08x\n", hr);
 129             return;
 130         }
 131         hr = lpsfDesktop->BindToObject(pidlParent, 0, IID_IShellFolder, (LPVOID *)&lpsfParent);
 132         lpsfDesktop->Release();
 133     }
 134
 135     if (!SUCCEEDED(hr)) {
 136         WARN("Could not bind to parent shell folder! hr = %08x\n", hr);
 137         return;
 138     }
 139
 140     if (pidlChild && pidlChild->mkid.cb) {
 141         hr = lpsfParent->BindToObject(pidlChild, 0, IID_IShellFolder, (LPVOID *)&lpsfRoot);
 142     } else {
 143         lpsfRoot = lpsfParent;
 144         hr = lpsfParent->AddRef();
 145     }
 146
 147     if (!SUCCEEDED(hr)) {
 148         WARN("Could not bind to root shell folder! hr = %08x\n", hr);
 149         lpsfParent->Release();
 150         return;
 151     }
 152
 153     flags = BrowseFlagsToSHCONTF( info->lpBrowseInfo->ulFlags );
 154     hr = lpsfRoot->EnumObjects(info->hWnd, flags, &pEnumChildren );
 155     if (!SUCCEEDED(hr)) {
 156         WARN("Could not get child iterator! hr = %08x\n", hr);
 157         lpsfParent->Release();
 158         lpsfRoot->Release();
 159         return;
 160     }
 161
 162     SendMessageW( info->hwndTreeView, TVM_DELETEITEM, 0, (LPARAM)TVI_ROOT );
 163     item = InsertTreeViewItem( info, lpsfParent, pidlChild,
 164                                pidlParent, pEnumChildren, TVI_ROOT );
 165     SendMessageW( info->hwndTreeView, TVM_EXPAND, TVE_EXPAND, (LPARAM)item );
 166
 167     lpsfRoot->Release();
 168     lpsfParent->Release();
 169 }
 170
 171 static int GetIcon(LPCITEMIDLIST lpi, UINT uFlags)
 172 {
 173     SHFILEINFOW sfi;
 174     SHGetFileInfoW((LPCWSTR)lpi, 0 ,&sfi, sizeof(SHFILEINFOW), uFlags);
 175     return sfi.iIcon;
 176 }
 177
 178 static void GetNormalAndSelectedIcons(LPITEMIDLIST lpifq, LPTVITEMW lpTV_ITEM)
 179 {
 180     LPITEMIDLIST pidlDesktop = NULL;
 181     DWORD flags;
 182
 183     TRACE("%p %p\n",lpifq, lpTV_ITEM);
 184
 185     if (!lpifq)
 186     {
 187         pidlDesktop = _ILCreateDesktop();
 188         lpifq = pidlDesktop;
 189     }
 190
 191     flags = SHGFI_PIDL | SHGFI_SYSICONINDEX | SHGFI_SMALLICON;
 192     lpTV_ITEM->iImage = GetIcon( lpifq, flags );
 193
 194     flags = SHGFI_PIDL | SHGFI_SYSICONINDEX | SHGFI_SMALLICON | SHGFI_OPENICON;
 195     lpTV_ITEM->iSelectedImage = GetIcon( lpifq, flags );
 196
 197     if (pidlDesktop)
 198         ILFree( pidlDesktop );
 199 }
 200
 201 /******************************************************************************
 202  * GetName [Internal]
 203  *
 204  * Query a shell folder for the display name of one of it's children
 205  *
 206  * PARAMS
 207  *  lpsf           [I] IShellFolder interface of the folder to be queried.
 208  *  lpi            [I] ITEMIDLIST of the child, relative to parent
 209  *  dwFlags        [I] as in IShellFolder::GetDisplayNameOf
 210  *  lpFriendlyName [O] The desired display name in unicode
 211  *
 212  * RETURNS
 213  *  Success: TRUE
 214  *  Failure: FALSE
 215  */
 216 static BOOL GetName(LPSHELLFOLDER lpsf, LPCITEMIDLIST lpi, DWORD dwFlags, LPWSTR lpFriendlyName)
 217 {
 218     BOOL   bSuccess=TRUE;
 219     STRRET str;
 220
 221     TRACE("%p %p %x %p\n", lpsf, lpi, dwFlags, lpFriendlyName);
 222     if (SUCCEEDED(lpsf->GetDisplayNameOf(lpi, dwFlags, &str)))
 223           bSuccess = StrRetToStrNW(lpFriendlyName, MAX_PATH, &str, lpi);
 224     else
 225       bSuccess = FALSE;
 226
 227     TRACE("-- %s\n", debugstr_w(lpFriendlyName));
 228     return bSuccess;
 229 }
 230
 231 /******************************************************************************
 232  * InsertTreeViewItem [Internal]
 233  *
 234  * PARAMS
 235  *  info       [I] data for the dialog
 236  *  lpsf       [I] IShellFolder interface of the item's parent shell folder
 237  *  pidl       [I] ITEMIDLIST of the child to insert, relative to parent
 238  *  pidlParent [I] ITEMIDLIST of the parent shell folder
 239  *  pEnumIL    [I] Iterator for the children of the item to be inserted
 240  *  hParent    [I] The treeview-item that represents the parent shell folder
 241  *
 242  * RETURNS
 243  *  Success: Handle to the created and inserted treeview-item
 244  *  Failure: NULL
 245  */
 246 static HTREEITEM InsertTreeViewItem( browse_info *info, IShellFolder * lpsf,
 247     LPCITEMIDLIST pidl, LPCITEMIDLIST pidlParent, IEnumIDList* pEnumIL,
 248     HTREEITEM hParent)
 249 {
 250     TVITEMW     tvi;
 251     TVINSERTSTRUCTW    tvins;
 252     WCHAR        szBuff[MAX_PATH];
 253     LPTV_ITEMDATA    lptvid=0;
 254
 255     tvi.mask  = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_PARAM;
 256
 257     tvi.cChildren= pEnumIL ? 1 : 0;
 258     tvi.mask |= TVIF_CHILDREN;
 259
 260     lptvid = (TV_ITEMDATA *)SHAlloc( sizeof(TV_ITEMDATA) );
 261     if (!lptvid)
 262         return NULL;
 263
 264     if (!GetName(lpsf, pidl, SHGDN_NORMAL, szBuff))
 265         return NULL;
 266
 267     tvi.pszText    = szBuff;
 268     tvi.cchTextMax = MAX_PATH;
 269     tvi.lParam = (LPARAM)lptvid;
 270
 271     lpsf->AddRef();
 272     lptvid->lpsfParent = lpsf;
 273     lptvid->lpi    = ILClone(pidl);
 274     lptvid->lpifq    = pidlParent ? ILCombine(pidlParent, pidl) : ILClone(pidl);
 275     lptvid->pEnumIL = pEnumIL;
 276     GetNormalAndSelectedIcons(lptvid->lpifq, &tvi);
 277
 278     tvins.item         = tvi;
 279     tvins.hInsertAfter = NULL;
 280     tvins.hParent      = hParent;
 281
 282     return (HTREEITEM)SendMessageW(info->hwndTreeView, TVM_INSERTITEM, 0, (LPARAM)&tvins );
 283 }
 284
 285 /******************************************************************************
 286  * FillTreeView [Internal]
 287  *
 288  * For each child (given by lpe) of the parent shell folder, which is given by
 289  * lpsf and whose PIDL is pidl, insert a treeview-item right under hParent
 290  *
 291  * PARAMS
 292  *  info    [I] data for the dialog
 293  *  lpsf    [I] IShellFolder interface of the parent shell folder
 294  *  pidl    [I] ITEMIDLIST of the parent shell folder
 295  *  hParent [I] The treeview item that represents the parent shell folder
 296  *  lpe     [I] An iterator for the children of the parent shell folder
 297  */
 298 static void FillTreeView( browse_info *info, IShellFolder * lpsf,
 299                  LPITEMIDLIST  pidl, HTREEITEM hParent, IEnumIDList* lpe)
 300 {
 301     HTREEITEM    hPrev = 0;
 302     LPITEMIDLIST    pidlTemp = 0;
 303     ULONG        ulFetched;
 304     HRESULT        hr;
 305     HWND        hwnd = GetParent( info->hwndTreeView );
 306
 307     TRACE("%p %p %p %p\n",lpsf, pidl, hParent, lpe);
 308
 309     /* No IEnumIDList -> No children */
 310     if (!lpe) return;
 311
 312     SetCapture( hwnd );
 313     SetCursor( LoadCursorA( 0, (LPSTR)IDC_WAIT ) );
 314
 315     while (NOERROR == lpe->Next(1,&pidlTemp,&ulFetched))
 316     {
 317         ULONG ulAttrs = SFGAO_HASSUBFOLDER | SFGAO_FOLDER;
 318         IEnumIDList* pEnumIL = NULL;
 319         IShellFolder* pSFChild = NULL;
 320         lpsf->GetAttributesOf(1, (LPCITEMIDLIST*)&pidlTemp, &ulAttrs);
 321         if (ulAttrs & SFGAO_FOLDER)
 322         {
 323             hr = lpsf->BindToObject(pidlTemp, NULL, IID_IShellFolder, (LPVOID *)&pSFChild);
 324             if (SUCCEEDED(hr))
 325                 {
 326                 DWORD flags = BrowseFlagsToSHCONTF(info->lpBrowseInfo->ulFlags);
 327                 hr = pSFChild->EnumObjects(hwnd, flags, &pEnumIL);
 328                     if (hr == S_OK)
 329                     {
 330                         if ((pEnumIL->Skip(1) != S_OK) ||
 331                              FAILED(pEnumIL->Reset()))
 332                         {
 333                             pEnumIL->Release();
 334                             pEnumIL = NULL;
 335                         }
 336                     }
 337                     pSFChild->Release();
 338                 }
 339         }
 340
 341         if (!(hPrev = InsertTreeViewItem(info, lpsf, pidlTemp, pidl, pEnumIL, hParent)))
 342             goto done;
 343         SHFree(pidlTemp);  /* Finally, free the pidl that the shell gave us... */
 344         pidlTemp=NULL;
 345     }
 346
 347 done:
 348     ReleaseCapture();
 349     SetCursor(LoadCursorW(0, (LPWSTR)IDC_ARROW));
 350     SHFree(pidlTemp);
 351 }
 352
 353 static BOOL __inline PIDLIsType(LPCITEMIDLIST pidl, PIDLTYPE type)
 354 {
 355     LPPIDLDATA data = _ILGetDataPointer(pidl);
 356     if (!data)
 357         return FALSE;
 358     return (data->type == type);
 359 }
 360
 361 static void BrsFolder_CheckValidSelection( browse_info *info, LPTV_ITEMDATA lptvid )
 362 {
 363     LPBROWSEINFOW lpBrowseInfo = info->lpBrowseInfo;
 364     LPCITEMIDLIST pidl = lptvid->lpi;
 365     BOOL bEnabled = TRUE;
 366     DWORD dwAttributes;
 367     HRESULT r;
 368
 369     if ((lpBrowseInfo->ulFlags & BIF_BROWSEFORCOMPUTER) &&
 370         !PIDLIsType(pidl, PT_COMP))
 371         bEnabled = FALSE;
 372     if (lpBrowseInfo->ulFlags & BIF_RETURNFSANCESTORS)
 373     {
 374         dwAttributes = SFGAO_FILESYSANCESTOR | SFGAO_FILESYSTEM;
 375         r = lptvid->lpsfParent->GetAttributesOf(1,
 376                                 (LPCITEMIDLIST*)&lptvid->lpi, &dwAttributes);
 377         if (FAILED(r) || !(dwAttributes & (SFGAO_FILESYSANCESTOR|SFGAO_FILESYSTEM)))
 378             bEnabled = FALSE;
 379     }
 380     if (lpBrowseInfo->ulFlags & BIF_RETURNONLYFSDIRS)
 381     {
 382         dwAttributes = SFGAO_FOLDER | SFGAO_FILESYSTEM;
 383         r = lptvid->lpsfParent->GetAttributesOf(1,
 384                                 (LPCITEMIDLIST*)&lptvid->lpi, &dwAttributes);
 385         if (FAILED(r) ||
 386             ((dwAttributes & (SFGAO_FOLDER|SFGAO_FILESYSTEM)) != (SFGAO_FOLDER|SFGAO_FILESYSTEM)))
 387         {
 388             bEnabled = FALSE;
 389         }
 390     }
 391     SendMessageW(info->hWnd, BFFM_ENABLEOK, 0, (LPARAM)bEnabled);
 392 }
 393
 394 static LRESULT BrsFolder_Treeview_Delete( browse_info *info, NMTREEVIEWW *pnmtv )
 395 {
 396     LPTV_ITEMDATA lptvid = (LPTV_ITEMDATA)pnmtv->itemOld.lParam;
 397
 398     TRACE("TVN_DELETEITEMA/W %p\n", lptvid);
 399
 400     lptvid->lpsfParent->Release();
 401     if (lptvid->pEnumIL)
 402         lptvid->pEnumIL->Release();
 403     SHFree(lptvid->lpi);
 404     SHFree(lptvid->lpifq);
 405     SHFree(lptvid);
 406     return 0;
 407 }
 408
 409 static LRESULT BrsFolder_Treeview_Expand( browse_info *info, NMTREEVIEWW *pnmtv )
 410 {
 411     IShellFolder *lpsf2 = NULL;
 412     LPTV_ITEMDATA lptvid = (LPTV_ITEMDATA) pnmtv->itemNew.lParam;
 413     HRESULT r;
 414
 415     TRACE("TVN_ITEMEXPANDINGA/W\n");
 416
 417     if ((pnmtv->itemNew.state & TVIS_EXPANDEDONCE))
 418         return 0;
 419
 420     if (lptvid->lpi && lptvid->lpi->mkid.cb) {
 421         r = lptvid->lpsfParent->BindToObject(lptvid->lpi, 0,
 422                                       IID_IShellFolder, (LPVOID *)&lpsf2 );
 423     } else {
 424         lpsf2 = lptvid->lpsfParent;
 425         r = lpsf2->AddRef();
 426     }
 427
 428     if (SUCCEEDED(r))
 429         FillTreeView( info, lpsf2, lptvid->lpifq, pnmtv->itemNew.hItem, lptvid->pEnumIL);
 430
 431     /* My Computer is already sorted and trying to do a simple text
 432      * sort will only mess things up */
 433     if (!_ILIsMyComputer(lptvid->lpi))
 434         SendMessageW( info->hwndTreeView, TVM_SORTCHILDREN,
 435                       FALSE, (LPARAM)pnmtv->itemNew.hItem );
 436
 437     return 0;
 438 }
 439
 440 static HRESULT BrsFolder_Treeview_Changed( browse_info *info, NMTREEVIEWW *pnmtv )
 441 {
 442     LPTV_ITEMDATA lptvid = (LPTV_ITEMDATA) pnmtv->itemNew.lParam;
 443
 444     lptvid = (LPTV_ITEMDATA) pnmtv->itemNew.lParam;
 445     info->pidlRet = lptvid->lpifq;
 446     browsefolder_callback( info->lpBrowseInfo, info->hWnd, BFFM_SELCHANGED,
 447                            (LPARAM)info->pidlRet );
 448     BrsFolder_CheckValidSelection( info, lptvid );
 449     return 0;
 450 }
 451
 452 static LRESULT BrsFolder_OnNotify( browse_info *info, UINT CtlID, LPNMHDR lpnmh )
 453 {
 454     NMTREEVIEWW *pnmtv = (NMTREEVIEWW *)lpnmh;
 455
 456     TRACE("%p %x %p msg=%x\n", info, CtlID, lpnmh, pnmtv->hdr.code);
 457
 458     if (pnmtv->hdr.idFrom != IDD_TREEVIEW)
 459         return 0;
 460
 461     switch (pnmtv->hdr.code)
 462     {
 463     case TVN_DELETEITEMA:
 464     case TVN_DELETEITEMW:
 465         return BrsFolder_Treeview_Delete( info, pnmtv );
 466
 467     case TVN_ITEMEXPANDINGA:
 468     case TVN_ITEMEXPANDINGW:
 469         return BrsFolder_Treeview_Expand( info, pnmtv );
 470
 471     case TVN_SELCHANGEDA:
 472     case TVN_SELCHANGEDW:
 473         return BrsFolder_Treeview_Changed( info, pnmtv );
 474
 475     default:
 476         WARN("unhandled (%d)\n", pnmtv->hdr.code);
 477         break;
 478     }
 479
 480     return 0;
 481 }
 482
 483
 484 static BOOL BrsFolder_OnCreate( HWND hWnd, browse_info *info )
 485 {
 486     LPBROWSEINFOW lpBrowseInfo = info->lpBrowseInfo;
 487
 488     info->hWnd = hWnd;
 489     SetPropW( hWnd, szBrowseFolderInfo, info );
 490
 491     if (lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE)
 492         FIXME("flags BIF_NEWDIALOGSTYLE partially implemented\n");
 493     if (lpBrowseInfo->ulFlags & ~SUPPORTEDFLAGS)
 494     FIXME("flags %x not implemented\n", lpBrowseInfo->ulFlags & ~SUPPORTEDFLAGS);
 495
 496     if (lpBrowseInfo->lpszTitle)
 497     SetWindowTextW( GetDlgItem(hWnd, IDD_TITLE), lpBrowseInfo->lpszTitle );
 498     else
 499     ShowWindow( GetDlgItem(hWnd, IDD_TITLE), SW_HIDE );
 500
 501     if (!(lpBrowseInfo->ulFlags & BIF_STATUSTEXT)
 502         || (lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE))
 503     ShowWindow( GetDlgItem(hWnd, IDD_STATUS), SW_HIDE );
 504
 505     /* Hide "Make New Folder" Button? */
 506     if ((lpBrowseInfo->ulFlags & BIF_NONEWFOLDERBUTTON)
 507         || !(lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE))
 508         ShowWindow( GetDlgItem(hWnd, IDD_MAKENEWFOLDER), SW_HIDE );
 509
 510     /* Hide the editbox? */
 511     if (!(lpBrowseInfo->ulFlags & BIF_EDITBOX))
 512     {
 513         ShowWindow( GetDlgItem(hWnd, IDD_FOLDER), SW_HIDE );
 514         ShowWindow( GetDlgItem(hWnd, IDD_FOLDERTEXT), SW_HIDE );
 515     }
 516
 517     info->hwndTreeView = GetDlgItem( hWnd, IDD_TREEVIEW );
 518     if (info->hwndTreeView)
 519     {
 520         InitializeTreeView( info );
 521
 522         /* Resize the treeview if there's not editbox */
 523         if ((lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE)
 524             && !(lpBrowseInfo->ulFlags & BIF_EDITBOX))
 525         {
 526             RECT rc;
 527             GetClientRect(info->hwndTreeView, &rc);
 528             SetWindowPos(info->hwndTreeView, HWND_TOP, 0, 0,
 529                          rc.right, rc.bottom + 40, SWP_NOMOVE);
 530         }
 531     }
 532     else
 533         ERR("treeview control missing!\n");
 534
 535     browsefolder_callback( info->lpBrowseInfo, hWnd, BFFM_INITIALIZED, 0 );
 536
 537     return TRUE;
 538 }
 539
 540 static BOOL BrsFolder_OnCommand( browse_info *info, UINT id )
 541 {
 542     LPBROWSEINFOW lpBrowseInfo = info->lpBrowseInfo;
 543
 544     switch (id)
 545     {
 546     case IDOK:
 547         /* The original pidl is owned by the treeview and will be free'd. */
 548         info->pidlRet = ILClone(info->pidlRet);
 549         if (info->pidlRet == NULL) /* A null pidl would mean a cancel */
 550             info->pidlRet = _ILCreateDesktop();
 551         pdump( info->pidlRet );
 552         if (lpBrowseInfo->pszDisplayName)
 553             SHGetPathFromIDListW( info->pidlRet, lpBrowseInfo->pszDisplayName );
 554         EndDialog( info->hWnd, 1 );
 555         return TRUE;
 556
 557     case IDCANCEL:
 558         EndDialog( info->hWnd, 0 );
 559         return TRUE;
 560
 561     case IDD_MAKENEWFOLDER:
 562         FIXME("make new folder not implemented\n");
 563         return TRUE;
 564     }
 565     return FALSE;
 566 }
 567
 568 static BOOL BrsFolder_OnSetExpanded(browse_info *info, LPVOID selection,
 569     BOOL is_str, HTREEITEM *pItem)
 570 {
 571     LPITEMIDLIST pidlSelection = (LPITEMIDLIST)selection;
 572     LPCITEMIDLIST pidlCurrent, pidlRoot;
 573     TVITEMEXW item;
 574     BOOL bResult = FALSE;
 575
 576     /* If 'selection' is a string, convert to a Shell ID List. */
 577     if (is_str) {
 578         IShellFolder *psfDesktop;
 579         HRESULT hr;
 580
 581         hr = SHGetDesktopFolder(&psfDesktop);
 582         if (FAILED(hr))
 583             goto done;
 584
 585         hr = psfDesktop->ParseDisplayName(NULL, NULL,
 586                      (LPOLESTR)selection, NULL, &pidlSelection, NULL);
 587         psfDesktop->Release();
 588         if (FAILED(hr))
 589             goto done;
 590     }
 591
 592     /* Move pidlCurrent behind the SHITEMIDs in pidlSelection, which are the root of
 593      * the sub-tree currently displayed. */
 594     pidlRoot = info->lpBrowseInfo->pidlRoot;
 595     pidlCurrent = pidlSelection;
 596     while (!_ILIsEmpty(pidlRoot) && _ILIsEqualSimple(pidlRoot, pidlCurrent)) {
 597         pidlRoot = ILGetNext(pidlRoot);
 598         pidlCurrent = ILGetNext(pidlCurrent);
 599     }
 600
 601     /* The given ID List is not part of the SHBrowseForFolder's current sub-tree. */
 602     if (!_ILIsEmpty(pidlRoot))
 603         goto done;
 604
 605     /* Initialize item to point to the first child of the root folder. */
 606     memset(&item, 0, sizeof(item));
 607     item.mask = TVIF_PARAM;
 608     item.hItem = TreeView_GetRoot(info->hwndTreeView);
 609     if (item.hItem)
 610         item.hItem = TreeView_GetChild(info->hwndTreeView, item.hItem);
 611
 612     /* Walk the tree along the nodes corresponding to the remaining ITEMIDLIST */
 613     while (item.hItem && !_ILIsEmpty(pidlCurrent)) {
 614         LPTV_ITEMDATA pItemData;
 615
 616         SendMessageW(info->hwndTreeView, TVM_GETITEMW, 0, (LPARAM)&item);
 617         pItemData = (LPTV_ITEMDATA)item.lParam;
 618
 619         if (_ILIsEqualSimple(pItemData->lpi, pidlCurrent)) {
 620             pidlCurrent = ILGetNext(pidlCurrent);
 621             if (!_ILIsEmpty(pidlCurrent)) {
 622                 /* Only expand current node and move on to it's first child,
 623                  * if we didn't already reach the last SHITEMID */
 624                 SendMessageW(info->hwndTreeView, TVM_EXPAND, TVE_EXPAND, (LPARAM)item.hItem);
 625                 item.hItem = TreeView_GetChild(info->hwndTreeView, item.hItem);
 626             }
 627         } else {
 628             item.hItem = TreeView_GetNextSibling(info->hwndTreeView, item.hItem);
 629         }
 630     }
 631
 632     if (_ILIsEmpty(pidlCurrent) && item.hItem)
 633         bResult = TRUE;
 634
 635 done:
 636     if (pidlSelection && pidlSelection != (LPITEMIDLIST)selection)
 637         ILFree(pidlSelection);
 638
 639     if (pItem)
 640         *pItem = item.hItem;
 641
 642     return bResult;
 643 }
 644
 645 static BOOL BrsFolder_OnSetSelectionW(browse_info *info, LPVOID selection, BOOL is_str) {
 646     HTREEITEM hItem;
 647     BOOL bResult;
 648
 649     bResult = BrsFolder_OnSetExpanded(info, selection, is_str, &hItem);
 650     if (bResult)
 651         SendMessageW(info->hwndTreeView, TVM_SELECTITEM, TVGN_CARET, (LPARAM)hItem );
 652     return bResult;
 653 }
 654
 655 static BOOL BrsFolder_OnSetSelectionA(browse_info *info, LPVOID selection, BOOL is_str) {
 656     LPWSTR selectionW = NULL;
 657     BOOL result = FALSE;
 658     int length;
 659
 660     if (!is_str)
 661         return BrsFolder_OnSetSelectionW(info, selection, is_str);
 662
 663     if ((length = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)selection, -1, NULL, 0)) &&
 664         (selectionW = (LPWSTR)HeapAlloc(GetProcessHeap(), 0, length * sizeof(WCHAR))) &&
 665         MultiByteToWideChar(CP_ACP, 0, (LPCSTR)selection, -1, selectionW, length))
 666     {
 667         result = BrsFolder_OnSetSelectionW(info, selectionW, is_str);
 668     }
 669
 670     HeapFree(GetProcessHeap(), 0, selectionW);
 671     return result;
 672 }
 673
 674 /*************************************************************************
 675  *             BrsFolderDlgProc32  (not an exported API function)
 676  */
 677 static INT_PTR CALLBACK BrsFolderDlgProc( HWND hWnd, UINT msg, WPARAM wParam,
 678                           LPARAM lParam )
 679 {
 680     browse_info *info;
 681
 682     TRACE("hwnd=%p msg=%04x 0x%08lx 0x%08lx\n", hWnd, msg, wParam, lParam );
 683
 684     if (msg == WM_INITDIALOG)
 685         return BrsFolder_OnCreate( hWnd, (browse_info*) lParam );
 686
 687     info = (browse_info*) GetPropW( hWnd, szBrowseFolderInfo );
 688
 689     switch (msg)
 690     {
 691     case WM_NOTIFY:
 692         return BrsFolder_OnNotify( info, (UINT)wParam, (LPNMHDR)lParam);
 693
 694     case WM_COMMAND:
 695         return BrsFolder_OnCommand( info, wParam );
 696
 697     case BFFM_SETSTATUSTEXTA:
 698         TRACE("Set status %s\n", debugstr_a((LPSTR)lParam));
 699         SetWindowTextA(GetDlgItem(hWnd, IDD_STATUS), (LPSTR)lParam);
 700         break;
 701
 702     case BFFM_SETSTATUSTEXTW:
 703         TRACE("Set status %s\n", debugstr_w((LPWSTR)lParam));
 704         SetWindowTextW(GetDlgItem(hWnd, IDD_STATUS), (LPWSTR)lParam);
 705         break;
 706
 707     case BFFM_ENABLEOK:
 708         TRACE("Enable %ld\n", lParam);
 709         EnableWindow(GetDlgItem(hWnd, 1), (lParam)?TRUE:FALSE);
 710         break;
 711
 712     case BFFM_SETOKTEXT: /* unicode only */
 713         TRACE("Set OK text %s\n", debugstr_w((LPWSTR)wParam));
 714         SetWindowTextW(GetDlgItem(hWnd, 1), (LPWSTR)wParam);
 715         break;
 716
 717     case BFFM_SETSELECTIONA:
 718         return BrsFolder_OnSetSelectionA(info, (LPVOID)lParam, (BOOL)wParam);
 719
 720     case BFFM_SETSELECTIONW:
 721         return BrsFolder_OnSetSelectionW(info, (LPVOID)lParam, (BOOL)wParam);
 722
 723     case BFFM_SETEXPANDED: /* unicode only */
 724         return BrsFolder_OnSetExpanded(info, (LPVOID)lParam, (BOOL)wParam, NULL);
 725     }
 726     return FALSE;
 727 }
 728
 729 static const WCHAR swBrowseTemplateName[] = {
 730     'S','H','B','R','S','F','O','R','F','O','L','D','E','R','_','M','S','G','B','O','X',0};
 731 static const WCHAR swNewBrowseTemplateName[] = {
 732     'S','H','N','E','W','B','R','S','F','O','R','F','O','L','D','E','R','_','M','S','G','B','O','X',0};
 733
 734 /*************************************************************************
 735  * SHBrowseForFolderA [SHELL32.@]
 736  * SHBrowseForFolder  [SHELL32.@]
 737  */
 738 LPITEMIDLIST WINAPI SHBrowseForFolderA (LPBROWSEINFOA lpbi)
 739 {
 740     BROWSEINFOW bi;
 741     LPITEMIDLIST lpid;
 742     INT len;
 743     LPWSTR title;
 744
 745     TRACE("%p\n", lpbi);
 746
 747     bi.hwndOwner = lpbi->hwndOwner;
 748     bi.pidlRoot = lpbi->pidlRoot;
 749     if (lpbi->pszDisplayName)
 750     {
 751         bi.pszDisplayName = (WCHAR *)HeapAlloc( GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR) );
 752         MultiByteToWideChar( CP_ACP, 0, lpbi->pszDisplayName, -1, bi.pszDisplayName, MAX_PATH );
 753     }
 754     else
 755         bi.pszDisplayName = NULL;
 756
 757     if (lpbi->lpszTitle)
 758     {
 759         len = MultiByteToWideChar( CP_ACP, 0, lpbi->lpszTitle, -1, NULL, 0 );
 760         title = (WCHAR *)HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 761         MultiByteToWideChar( CP_ACP, 0, lpbi->lpszTitle, -1, title, len );
 762     }
 763     else
 764         title = NULL;
 765
 766     bi.lpszTitle = title;
 767     bi.ulFlags = lpbi->ulFlags;
 768     bi.lpfn = lpbi->lpfn;
 769     bi.lParam = lpbi->lParam;
 770     bi.iImage = lpbi->iImage;
 771     lpid = SHBrowseForFolderW( &bi );
 772     if (bi.pszDisplayName)
 773     {
 774         WideCharToMultiByte( CP_ACP, 0, bi.pszDisplayName, -1,
 775                              lpbi->pszDisplayName, MAX_PATH, 0, NULL);
 776         HeapFree( GetProcessHeap(), 0, bi.pszDisplayName );
 777     }
 778     HeapFree(GetProcessHeap(), 0, title);
 779     lpbi->iImage = bi.iImage;
 780     return lpid;
 781 }
 782
 783
 784 /*************************************************************************
 785  * SHBrowseForFolderW [SHELL32.@]
 786  *
 787  * NOTES
 788  *  crashes when passed a null pointer
 789  */
 790 LPITEMIDLIST WINAPI SHBrowseForFolderW (LPBROWSEINFOW lpbi)
 791 {
 792     browse_info info;
 793     DWORD r;
 794     HRESULT hr;
 795     const WCHAR * templateName;
 796
 797     info.hWnd = 0;
 798     info.pidlRet = NULL;
 799     info.lpBrowseInfo = lpbi;
 800     info.hwndTreeView = NULL;
 801
 802     hr = OleInitialize(NULL);
 803
 804     if (lpbi->ulFlags & BIF_NEWDIALOGSTYLE)
 805         templateName = swNewBrowseTemplateName;
 806     else
 807         templateName = swBrowseTemplateName;
 808     r = DialogBoxParamW( shell32_hInstance, templateName, lpbi->hwndOwner,
 809                      BrsFolderDlgProc, (LPARAM)&info );
 810     if (SUCCEEDED(hr))
 811         OleUninitialize();
 812     if (!r)
 813         return NULL;
 814
 815     return info.pidlRet;
 816 }