dlls/shell32/brsfolder.c

   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 <stdlib.h>
  27 #include <string.h>
  28
  29 #define COBJMACROS
  30 #define NONAMELESSUNION
  31 #define NONAMELESSSTRUCT
  32
  33 #include "wine/debug.h"
  34 #include "undocshell.h"
  35 #include "pidl.h"
  36 #include "shell32_main.h"
  37 #include "shellapi.h"
  38 #include "shresdef.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  41
  42 typedef struct tagbrowse_info
  43 {
  44     HWND          hWnd;
  45     HWND          hwndTreeView;
  46     LPBROWSEINFOW lpBrowseInfo;
  47     LPITEMIDLIST  pidlRet;
  48 } browse_info;
  49
  50 typedef struct tagTV_ITEMDATA
  51 {
  52    LPSHELLFOLDER lpsfParent; /* IShellFolder of the parent */
  53    LPITEMIDLIST  lpi;        /* PIDL relative to parent */
  54    LPITEMIDLIST  lpifq;      /* Fully qualified PIDL */
  55    IEnumIDList*  pEnumIL;    /* Children iterator */
  56 } TV_ITEMDATA, *LPTV_ITEMDATA;
  57
  58 #define SUPPORTEDFLAGS (BIF_STATUSTEXT | \
  59                         BIF_BROWSEFORCOMPUTER | \
  60                         BIF_RETURNFSANCESTORS | \
  61                         BIF_RETURNONLYFSDIRS | \
  62                         BIF_NONEWFOLDERBUTTON | \
  63                         BIF_NEWDIALOGSTYLE | \
  64                         BIF_BROWSEINCLUDEFILES)
  65
  66 static void FillTreeView(browse_info*, LPSHELLFOLDER,
  67                LPITEMIDLIST, HTREEITEM, IEnumIDList*);
  68 static HTREEITEM InsertTreeViewItem( browse_info*, IShellFolder *,
  69                LPCITEMIDLIST, LPCITEMIDLIST, IEnumIDList*, HTREEITEM);
  70
  71 static const WCHAR szBrowseFolderInfo[] = {
  72     '_','_','W','I','N','E','_',
  73     'B','R','S','F','O','L','D','E','R','D','L','G','_',
  74     'I','N','F','O',0
  75 };
  76
  77 static inline DWORD BrowseFlagsToSHCONTF(UINT ulFlags)
  78 {
  79     return SHCONTF_FOLDERS | (ulFlags & BIF_BROWSEINCLUDEFILES ? SHCONTF_NONFOLDERS : 0);
  80 }
  81
  82 static void browsefolder_callback( LPBROWSEINFOW lpBrowseInfo, HWND hWnd,
  83                                    UINT msg, LPARAM param )
  84 {
  85     if (!lpBrowseInfo->lpfn)
  86         return;
  87     lpBrowseInfo->lpfn( hWnd, msg, param, lpBrowseInfo->lParam );
  88 }
  89
  90 /******************************************************************************
  91  * InitializeTreeView [Internal]
  92  *
  93  * Called from WM_INITDIALOG handler.
  94  *
  95  * PARAMS
  96  *  hwndParent [I] The BrowseForFolder dialog
  97  *  root       [I] ITEMIDLIST of the root shell folder
  98  */
  99 static void InitializeTreeView( browse_info *info )
 100 {
 101     LPITEMIDLIST pidlParent, pidlChild;
 102     HIMAGELIST hImageList;
 103     HRESULT hr;
 104     IShellFolder *lpsfParent, *lpsfRoot;
 105     IEnumIDList * pEnumChildren = NULL;
 106     HTREEITEM item;
 107     DWORD flags;
 108     LPCITEMIDLIST root = info->lpBrowseInfo->pidlRoot;
 109
 110     TRACE("%p\n", info );
 111
 112     Shell_GetImageList(NULL, &hImageList);
 113
 114     if (hImageList)
 115         SendMessageW( info->hwndTreeView, TVM_SETIMAGELIST, 0, (LPARAM)hImageList );
 116
 117     /* We want to call InsertTreeViewItem down the code, in order to insert
 118      * the root item of the treeview. Due to InsertTreeViewItem's signature,
 119      * we need the following to do this:
 120      *
 121      * + An ITEMIDLIST corresponding to _the parent_ of root.
 122      * + An ITEMIDLIST, which is a relative path from root's parent to root
 123      *   (containing a single SHITEMID).
 124      * + An IShellFolder interface pointer of root's parent folder.
 125      *
 126      * If root is 'Desktop', then root's parent is also 'Desktop'.
 127      */
 128
 129     pidlParent = ILClone(root);
 130     ILRemoveLastID(pidlParent);
 131     pidlChild = ILClone(ILFindLastID(root));
 132
 133     if (_ILIsDesktop(pidlParent)) {
 134         hr = SHGetDesktopFolder(&lpsfParent);
 135     } else {
 136         IShellFolder *lpsfDesktop;
 137         hr = SHGetDesktopFolder(&lpsfDesktop);
 138         if (!SUCCEEDED(hr)) {
 139             WARN("SHGetDesktopFolder failed! hr = %08x\n", hr);
 140             return;
 141         }
 142         hr = IShellFolder_BindToObject(lpsfDesktop, pidlParent, 0, &IID_IShellFolder, (LPVOID*)&lpsfParent);
 143         IShellFolder_Release(lpsfDesktop);
 144     }
 145
 146     if (!SUCCEEDED(hr)) {
 147         WARN("Could not bind to parent shell folder! hr = %08x\n", hr);
 148         return;
 149     }
 150
 151     if (pidlChild && pidlChild->mkid.cb) {
 152         hr = IShellFolder_BindToObject(lpsfParent, pidlChild, 0, &IID_IShellFolder, (LPVOID*)&lpsfRoot);
 153     } else {
 154         lpsfRoot = lpsfParent;
 155         hr = IShellFolder_AddRef(lpsfParent);
 156     }
 157
 158     if (!SUCCEEDED(hr)) {
 159         WARN("Could not bind to root shell folder! hr = %08x\n", hr);
 160         IShellFolder_Release(lpsfParent);
 161         return;
 162     }
 163
 164     flags = BrowseFlagsToSHCONTF( info->lpBrowseInfo->ulFlags );
 165     hr = IShellFolder_EnumObjects( lpsfRoot, info->hWnd, flags, &pEnumChildren );
 166     if (!SUCCEEDED(hr)) {
 167         WARN("Could not get child iterator! hr = %08x\n", hr);
 168         IShellFolder_Release(lpsfParent);
 169         IShellFolder_Release(lpsfRoot);
 170         return;
 171     }
 172
 173     SendMessageW( info->hwndTreeView, TVM_DELETEITEM, 0, (LPARAM)TVI_ROOT );
 174     item = InsertTreeViewItem( info, lpsfParent, pidlChild,
 175                                pidlParent, pEnumChildren, TVI_ROOT );
 176     SendMessageW( info->hwndTreeView, TVM_EXPAND, TVE_EXPAND, (LPARAM)item );
 177
 178     IShellFolder_Release(lpsfRoot);
 179     IShellFolder_Release(lpsfParent);
 180 }
 181
 182 static int GetIcon(LPCITEMIDLIST lpi, UINT uFlags)
 183 {
 184     SHFILEINFOW sfi;
 185     SHGetFileInfoW((LPCWSTR)lpi, 0 ,&sfi, sizeof(SHFILEINFOW), uFlags);
 186     return sfi.iIcon;
 187 }
 188
 189 static void GetNormalAndSelectedIcons(LPITEMIDLIST lpifq, LPTVITEMW lpTV_ITEM)
 190 {
 191     LPITEMIDLIST pidlDesktop = NULL;
 192     DWORD flags;
 193
 194     TRACE("%p %p\n",lpifq, lpTV_ITEM);
 195
 196     if (!lpifq)
 197     {
 198         pidlDesktop = _ILCreateDesktop();
 199         lpifq = pidlDesktop;
 200     }
 201
 202     flags = SHGFI_PIDL | SHGFI_SYSICONINDEX | SHGFI_SMALLICON;
 203     lpTV_ITEM->iImage = GetIcon( lpifq, flags );
 204
 205     flags = SHGFI_PIDL | SHGFI_SYSICONINDEX | SHGFI_SMALLICON | SHGFI_OPENICON;
 206     lpTV_ITEM->iSelectedImage = GetIcon( lpifq, flags );
 207
 208     if (pidlDesktop)
 209         ILFree( pidlDesktop );
 210 }
 211
 212 /******************************************************************************
 213  * GetName [Internal]
 214  *
 215  * Query a shell folder for the display name of one of it's children
 216  *
 217  * PARAMS
 218  *  lpsf           [I] IShellFolder interface of the folder to be queried.
 219  *  lpi            [I] ITEMIDLIST of the child, relative to parent
 220  *  dwFlags        [I] as in IShellFolder::GetDisplayNameOf
 221  *  lpFriendlyName [O] The desired display name in unicode
 222  *
 223  * RETURNS
 224  *  Success: TRUE
 225  *  Failure: FALSE
 226  */
 227 static BOOL GetName(LPSHELLFOLDER lpsf, LPCITEMIDLIST lpi, DWORD dwFlags, LPWSTR lpFriendlyName)
 228 {
 229         BOOL   bSuccess=TRUE;
 230         STRRET str;
 231
 232         TRACE("%p %p %x %p\n", lpsf, lpi, dwFlags, lpFriendlyName);
 233         if (SUCCEEDED(IShellFolder_GetDisplayNameOf(lpsf, lpi, dwFlags, &str)))
 234           bSuccess = StrRetToStrNW(lpFriendlyName, MAX_PATH, &str, lpi);
 235         else
 236           bSuccess = FALSE;
 237
 238         TRACE("-- %s\n", debugstr_w(lpFriendlyName));
 239         return bSuccess;
 240 }
 241
 242 /******************************************************************************
 243  * InsertTreeViewItem [Internal]
 244  *
 245  * PARAMS
 246  *  info       [I] data for the dialog
 247  *  lpsf       [I] IShellFolder interface of the item's parent shell folder
 248  *  pidl       [I] ITEMIDLIST of the child to insert, relative to parent
 249  *  pidlParent [I] ITEMIDLIST of the parent shell folder
 250  *  pEnumIL    [I] Iterator for the children of the item to be inserted
 251  *  hParent    [I] The treeview-item that represents the parent shell folder
 252  *
 253  * RETURNS
 254  *  Success: Handle to the created and inserted treeview-item
 255  *  Failure: NULL
 256  */
 257 static HTREEITEM InsertTreeViewItem( browse_info *info, IShellFolder * lpsf,
 258     LPCITEMIDLIST pidl, LPCITEMIDLIST pidlParent, IEnumIDList* pEnumIL,
 259     HTREEITEM hParent)
 260 {
 261         TVITEMW         tvi;
 262         TVINSERTSTRUCTW tvins;
 263         WCHAR           szBuff[MAX_PATH];
 264         LPTV_ITEMDATA   lptvid=0;
 265
 266         tvi.mask  = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_PARAM;
 267
 268         tvi.cChildren= pEnumIL ? 1 : 0;
 269         tvi.mask |= TVIF_CHILDREN;
 270
 271         lptvid = SHAlloc( sizeof(TV_ITEMDATA) );
 272         if (!lptvid)
 273             return NULL;
 274
 275         if (!GetName(lpsf, pidl, SHGDN_NORMAL, szBuff))
 276             return NULL;
 277
 278         tvi.pszText    = szBuff;
 279         tvi.cchTextMax = MAX_PATH;
 280         tvi.lParam = (LPARAM)lptvid;
 281
 282         IShellFolder_AddRef(lpsf);
 283         lptvid->lpsfParent = lpsf;
 284         lptvid->lpi     = ILClone(pidl);
 285         lptvid->lpifq   = pidlParent ? ILCombine(pidlParent, pidl) : ILClone(pidl);
 286         lptvid->pEnumIL = pEnumIL;
 287         GetNormalAndSelectedIcons(lptvid->lpifq, &tvi);
 288
 289         tvins.u.item       = tvi;
 290         tvins.hInsertAfter = NULL;
 291         tvins.hParent      = hParent;
 292
 293         return TreeView_InsertItemW( info->hwndTreeView, &tvins );
 294 }
 295
 296 /******************************************************************************
 297  * FillTreeView [Internal]
 298  *
 299  * For each child (given by lpe) of the parent shell folder, which is given by
 300  * lpsf and whose PIDL is pidl, insert a treeview-item right under hParent
 301  *
 302  * PARAMS
 303  *  info    [I] data for the dialog
 304  *  lpsf    [I] IShellFolder interface of the parent shell folder
 305  *  pidl    [I] ITEMIDLIST of the parent shell folder
 306  *  hParent [I] The treeview item that represents the parent shell folder
 307  *  lpe     [I] An iterator for the children of the parent shell folder
 308  */
 309 static void FillTreeView( browse_info *info, IShellFolder * lpsf,
 310                  LPITEMIDLIST  pidl, HTREEITEM hParent, IEnumIDList* lpe)
 311 {
 312         HTREEITEM       hPrev = 0;
 313         LPITEMIDLIST    pidlTemp = 0;
 314         ULONG           ulFetched;
 315         HRESULT         hr;
 316         HWND            hwnd = GetParent( info->hwndTreeView );
 317
 318         TRACE("%p %p %p %p\n",lpsf, pidl, hParent, lpe);
 319
 320         /* No IEnumIDList -> No children */
 321         if (!lpe) return;
 322
 323         SetCapture( hwnd );
 324         SetCursor( LoadCursorA( 0, (LPSTR)IDC_WAIT ) );
 325
 326         while (NOERROR == IEnumIDList_Next(lpe,1,&pidlTemp,&ulFetched))
 327         {
 328             ULONG ulAttrs = SFGAO_HASSUBFOLDER | SFGAO_FOLDER;
 329             IEnumIDList* pEnumIL = NULL;
 330             IShellFolder* pSFChild = NULL;
 331             IShellFolder_GetAttributesOf(lpsf, 1, (LPCITEMIDLIST*)&pidlTemp, &ulAttrs);
 332             if (ulAttrs & SFGAO_FOLDER)
 333             {
 334                 hr = IShellFolder_BindToObject(lpsf,pidlTemp,NULL,&IID_IShellFolder,(LPVOID*)&pSFChild);
 335                 if (SUCCEEDED(hr))
 336                 {
 337                     DWORD flags = BrowseFlagsToSHCONTF(info->lpBrowseInfo->ulFlags);
 338                     hr = IShellFolder_EnumObjects(pSFChild, hwnd, flags, &pEnumIL);
 339                     if (hr == S_OK)
 340                     {
 341                         if ((IEnumIDList_Skip(pEnumIL, 1) != S_OK) ||
 342                              FAILED(IEnumIDList_Reset(pEnumIL)))
 343                         {
 344                             IEnumIDList_Release(pEnumIL);
 345                             pEnumIL = NULL;
 346                         }
 347                     }
 348                     IShellFolder_Release(pSFChild);
 349                 }
 350             }
 351
 352             if (!(hPrev = InsertTreeViewItem(info, lpsf, pidlTemp, pidl, pEnumIL, hParent)))
 353                 goto done;
 354             SHFree(pidlTemp);  /* Finally, free the pidl that the shell gave us... */
 355             pidlTemp=NULL;
 356         }
 357
 358 done:
 359         ReleaseCapture();
 360         SetCursor(LoadCursorW(0, (LPWSTR)IDC_ARROW));
 361     SHFree(pidlTemp);
 362 }
 363
 364 static inline BOOL PIDLIsType(LPCITEMIDLIST pidl, PIDLTYPE type)
 365 {
 366     LPPIDLDATA data = _ILGetDataPointer(pidl);
 367     if (!data)
 368         return FALSE;
 369     return (data->type == type);
 370 }
 371
 372 static void BrsFolder_CheckValidSelection( browse_info *info, LPTV_ITEMDATA lptvid )
 373 {
 374     LPBROWSEINFOW lpBrowseInfo = info->lpBrowseInfo;
 375     LPCITEMIDLIST pidl = lptvid->lpi;
 376     BOOL bEnabled = TRUE;
 377     DWORD dwAttributes;
 378     HRESULT r;
 379
 380     if ((lpBrowseInfo->ulFlags & BIF_BROWSEFORCOMPUTER) &&
 381         !PIDLIsType(pidl, PT_COMP))
 382         bEnabled = FALSE;
 383     if (lpBrowseInfo->ulFlags & BIF_RETURNFSANCESTORS)
 384     {
 385         dwAttributes = SFGAO_FILESYSANCESTOR | SFGAO_FILESYSTEM;
 386         r = IShellFolder_GetAttributesOf(lptvid->lpsfParent, 1,
 387                                 (LPCITEMIDLIST*)&lptvid->lpi, &dwAttributes);
 388         if (FAILED(r) || !(dwAttributes & (SFGAO_FILESYSANCESTOR|SFGAO_FILESYSTEM)))
 389             bEnabled = FALSE;
 390     }
 391     if (lpBrowseInfo->ulFlags & BIF_RETURNONLYFSDIRS)
 392     {
 393         dwAttributes = SFGAO_FOLDER | SFGAO_FILESYSTEM;
 394         r = IShellFolder_GetAttributesOf(lptvid->lpsfParent, 1,
 395                                 (LPCITEMIDLIST*)&lptvid->lpi, &dwAttributes);
 396         if (FAILED(r) ||
 397             ((dwAttributes & (SFGAO_FOLDER|SFGAO_FILESYSTEM)) != (SFGAO_FOLDER|SFGAO_FILESYSTEM)))
 398         {
 399             bEnabled = FALSE;
 400         }
 401     }
 402     SendMessageW(info->hWnd, BFFM_ENABLEOK, 0, (LPARAM)bEnabled);
 403 }
 404
 405 static LRESULT BrsFolder_Treeview_Delete( browse_info *info, NMTREEVIEWW *pnmtv )
 406 {
 407     LPTV_ITEMDATA lptvid = (LPTV_ITEMDATA)pnmtv->itemOld.lParam;
 408
 409     TRACE("TVN_DELETEITEMA/W %p\n", lptvid);
 410
 411     IShellFolder_Release(lptvid->lpsfParent);
 412     if (lptvid->pEnumIL)
 413         IEnumIDList_Release(lptvid->pEnumIL);
 414     SHFree(lptvid->lpi);
 415     SHFree(lptvid->lpifq);
 416     SHFree(lptvid);
 417     return 0;
 418 }
 419
 420 static LRESULT BrsFolder_Treeview_Expand( browse_info *info, NMTREEVIEWW *pnmtv )
 421 {
 422     IShellFolder *lpsf2 = NULL;
 423     LPTV_ITEMDATA lptvid = (LPTV_ITEMDATA) pnmtv->itemNew.lParam;
 424     HRESULT r;
 425
 426     TRACE("TVN_ITEMEXPANDINGA/W\n");
 427
 428     if ((pnmtv->itemNew.state & TVIS_EXPANDEDONCE))
 429         return 0;
 430
 431     if (lptvid->lpi && lptvid->lpi->mkid.cb) {
 432         r = IShellFolder_BindToObject( lptvid->lpsfParent, lptvid->lpi, 0,
 433                                       (REFIID)&IID_IShellFolder, (LPVOID *)&lpsf2 );
 434     } else {
 435         lpsf2 = lptvid->lpsfParent;
 436         r = IShellFolder_AddRef(lpsf2);
 437     }
 438
 439     if (SUCCEEDED(r))
 440         FillTreeView( info, lpsf2, lptvid->lpifq, pnmtv->itemNew.hItem, lptvid->pEnumIL);
 441
 442     /* My Computer is already sorted and trying to do a simple text
 443      * sort will only mess things up */
 444     if (!_ILIsMyComputer(lptvid->lpi))
 445         SendMessageW( info->hwndTreeView, TVM_SORTCHILDREN,
 446                       FALSE, (LPARAM)pnmtv->itemNew.hItem );
 447
 448     return 0;
 449 }
 450
 451 static HRESULT BrsFolder_Treeview_Changed( browse_info *info, NMTREEVIEWW *pnmtv )
 452 {
 453     LPTV_ITEMDATA lptvid = (LPTV_ITEMDATA) pnmtv->itemNew.lParam;
 454
 455     lptvid = (LPTV_ITEMDATA) pnmtv->itemNew.lParam;
 456     info->pidlRet = lptvid->lpifq;
 457     browsefolder_callback( info->lpBrowseInfo, info->hWnd, BFFM_SELCHANGED,
 458                            (LPARAM)info->pidlRet );
 459     BrsFolder_CheckValidSelection( info, lptvid );
 460     return 0;
 461 }
 462
 463 static LRESULT BrsFolder_OnNotify( browse_info *info, UINT CtlID, LPNMHDR lpnmh )
 464 {
 465     NMTREEVIEWW *pnmtv = (NMTREEVIEWW *)lpnmh;
 466
 467     TRACE("%p %x %p msg=%x\n", info, CtlID, lpnmh, pnmtv->hdr.code);
 468
 469     if (pnmtv->hdr.idFrom != IDD_TREEVIEW)
 470         return 0;
 471
 472     switch (pnmtv->hdr.code)
 473     {
 474     case TVN_DELETEITEMA:
 475     case TVN_DELETEITEMW:
 476         return BrsFolder_Treeview_Delete( info, pnmtv );
 477
 478     case TVN_ITEMEXPANDINGA:
 479     case TVN_ITEMEXPANDINGW:
 480         return BrsFolder_Treeview_Expand( info, pnmtv );
 481
 482     case TVN_SELCHANGEDA:
 483     case TVN_SELCHANGEDW:
 484         return BrsFolder_Treeview_Changed( info, pnmtv );
 485
 486     default:
 487         WARN("unhandled (%d)\n", pnmtv->hdr.code);
 488         break;
 489     }
 490
 491     return 0;
 492 }
 493
 494
 495 static BOOL BrsFolder_OnCreate( HWND hWnd, browse_info *info )
 496 {
 497     LPBROWSEINFOW lpBrowseInfo = info->lpBrowseInfo;
 498
 499     info->hWnd = hWnd;
 500     SetPropW( hWnd, szBrowseFolderInfo, info );
 501
 502     if (lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE)
 503         FIXME("flags BIF_NEWDIALOGSTYLE partially implemented\n");
 504     if (lpBrowseInfo->ulFlags & ~SUPPORTEDFLAGS)
 505         FIXME("flags %x not implemented\n", lpBrowseInfo->ulFlags & ~SUPPORTEDFLAGS);
 506
 507     if (lpBrowseInfo->lpszTitle)
 508         SetWindowTextW( GetDlgItem(hWnd, IDD_TITLE), lpBrowseInfo->lpszTitle );
 509     else
 510         ShowWindow( GetDlgItem(hWnd, IDD_TITLE), SW_HIDE );
 511
 512     if (!(lpBrowseInfo->ulFlags & BIF_STATUSTEXT)
 513         || (lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE))
 514         ShowWindow( GetDlgItem(hWnd, IDD_STATUS), SW_HIDE );
 515
 516     /* Hide "Make New Folder" Button? */
 517     if ((lpBrowseInfo->ulFlags & BIF_NONEWFOLDERBUTTON)
 518         || !(lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE))
 519         ShowWindow( GetDlgItem(hWnd, IDD_MAKENEWFOLDER), SW_HIDE );
 520
 521     /* Hide the editbox? */
 522     if (!(lpBrowseInfo->ulFlags & BIF_EDITBOX))
 523     {
 524         ShowWindow( GetDlgItem(hWnd, IDD_FOLDER), SW_HIDE );
 525         ShowWindow( GetDlgItem(hWnd, IDD_FOLDERTEXT), SW_HIDE );
 526     }
 527
 528     info->hwndTreeView = GetDlgItem( hWnd, IDD_TREEVIEW );
 529     if (info->hwndTreeView)
 530     {
 531         InitializeTreeView( info );
 532
 533         /* Resize the treeview if there's not editbox */
 534         if ((lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE)
 535             && !(lpBrowseInfo->ulFlags & BIF_EDITBOX))
 536         {
 537             RECT rc;
 538             GetClientRect(info->hwndTreeView, &rc);
 539             SetWindowPos(info->hwndTreeView, HWND_TOP, 0, 0,
 540                          rc.right, rc.bottom + 40, SWP_NOMOVE);
 541         }
 542     }
 543     else
 544         ERR("treeview control missing!\n");
 545
 546     browsefolder_callback( info->lpBrowseInfo, hWnd, BFFM_INITIALIZED, 0 );
 547
 548     return TRUE;
 549 }
 550
 551 static BOOL BrsFolder_OnCommand( browse_info *info, UINT id )
 552 {
 553     LPBROWSEINFOW lpBrowseInfo = info->lpBrowseInfo;
 554
 555     switch (id)
 556     {
 557     case IDOK:
 558         /* The original pidl is owned by the treeview and will be free'd. */
 559         info->pidlRet = ILClone(info->pidlRet);
 560         if (info->pidlRet == NULL) /* A null pidl would mean a cancel */
 561             info->pidlRet = _ILCreateDesktop();
 562         pdump( info->pidlRet );
 563         if (lpBrowseInfo->pszDisplayName)
 564             SHGetPathFromIDListW( info->pidlRet, lpBrowseInfo->pszDisplayName );
 565         EndDialog( info->hWnd, 1 );
 566         return TRUE;
 567
 568     case IDCANCEL:
 569         EndDialog( info->hWnd, 0 );
 570         return TRUE;
 571
 572     case IDD_MAKENEWFOLDER:
 573         FIXME("make new folder not implemented\n");
 574         return TRUE;
 575     }
 576     return FALSE;
 577 }
 578
 579 static BOOL BrsFolder_OnSetExpanded(browse_info *info, LPVOID selection,
 580     BOOL is_str, HTREEITEM *pItem)
 581 {
 582     LPITEMIDLIST pidlSelection = (LPITEMIDLIST)selection;
 583     LPCITEMIDLIST pidlCurrent, pidlRoot;
 584     TVITEMEXW item;
 585     BOOL bResult = FALSE;
 586
 587     /* If 'selection' is a string, convert to a Shell ID List. */
 588     if (is_str) {
 589         IShellFolder *psfDesktop;
 590         HRESULT hr;
 591
 592         hr = SHGetDesktopFolder(&psfDesktop);
 593         if (FAILED(hr))
 594             goto done;
 595
 596         hr = IShellFolder_ParseDisplayName(psfDesktop, NULL, NULL,
 597                      (LPOLESTR)selection, NULL, &pidlSelection, NULL);
 598         IShellFolder_Release(psfDesktop);
 599         if (FAILED(hr))
 600             goto done;
 601     }
 602
 603     /* Move pidlCurrent behind the SHITEMIDs in pidlSelection, which are the root of
 604      * the sub-tree currently displayed. */
 605     pidlRoot = info->lpBrowseInfo->pidlRoot;
 606     pidlCurrent = pidlSelection;
 607     while (!_ILIsEmpty(pidlRoot) && _ILIsEqualSimple(pidlRoot, pidlCurrent)) {
 608         pidlRoot = ILGetNext(pidlRoot);
 609         pidlCurrent = ILGetNext(pidlCurrent);
 610     }
 611
 612     /* The given ID List is not part of the SHBrowseForFolder's current sub-tree. */
 613     if (!_ILIsEmpty(pidlRoot))
 614         goto done;
 615
 616     /* Initialize item to point to the first child of the root folder. */
 617     memset(&item, 0, sizeof(item));
 618     item.mask = TVIF_PARAM;
 619     item.hItem = TreeView_GetRoot(info->hwndTreeView);
 620     if (item.hItem)
 621         item.hItem = TreeView_GetChild(info->hwndTreeView, item.hItem);
 622
 623     /* Walk the tree along the nodes corresponding to the remaining ITEMIDLIST */
 624     while (item.hItem && !_ILIsEmpty(pidlCurrent)) {
 625         LPTV_ITEMDATA pItemData;
 626
 627         SendMessageW(info->hwndTreeView, TVM_GETITEMW, 0, (LPARAM)&item);
 628         pItemData = (LPTV_ITEMDATA)item.lParam;
 629
 630         if (_ILIsEqualSimple(pItemData->lpi, pidlCurrent)) {
 631             pidlCurrent = ILGetNext(pidlCurrent);
 632             if (!_ILIsEmpty(pidlCurrent)) {
 633                 /* Only expand current node and move on to it's first child,
 634                  * if we didn't already reach the last SHITEMID */
 635                 SendMessageW(info->hwndTreeView, TVM_EXPAND, TVE_EXPAND, (LPARAM)item.hItem);
 636                 item.hItem = TreeView_GetChild(info->hwndTreeView, item.hItem);
 637             }
 638         } else {
 639             item.hItem = TreeView_GetNextSibling(info->hwndTreeView, item.hItem);
 640         }
 641     }
 642
 643     if (_ILIsEmpty(pidlCurrent) && item.hItem)
 644         bResult = TRUE;
 645
 646 done:
 647     if (pidlSelection && pidlSelection != (LPITEMIDLIST)selection)
 648         ILFree(pidlSelection);
 649
 650     if (pItem)
 651         *pItem = item.hItem;
 652
 653     return bResult;
 654 }
 655
 656 static BOOL BrsFolder_OnSetSelectionW(browse_info *info, LPVOID selection, BOOL is_str) {
 657     HTREEITEM hItem;
 658     BOOL bResult;
 659
 660     bResult = BrsFolder_OnSetExpanded(info, selection, is_str, &hItem);
 661     if (bResult)
 662         SendMessageW(info->hwndTreeView, TVM_SELECTITEM, TVGN_CARET, (LPARAM)hItem );
 663     return bResult;
 664 }
 665
 666 static BOOL BrsFolder_OnSetSelectionA(browse_info *info, LPVOID selection, BOOL is_str) {
 667     LPWSTR selectionW = NULL;
 668     BOOL result = FALSE;
 669     int length;
 670
 671     if (!is_str)
 672         return BrsFolder_OnSetSelectionW(info, selection, is_str);
 673
 674     if ((length = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)selection, -1, NULL, 0)) &&
 675         (selectionW = HeapAlloc(GetProcessHeap(), 0, length * sizeof(WCHAR))) &&
 676         MultiByteToWideChar(CP_ACP, 0, (LPCSTR)selection, -1, selectionW, length))
 677     {
 678         result = BrsFolder_OnSetSelectionW(info, selectionW, is_str);
 679     }
 680
 681     HeapFree(GetProcessHeap(), 0, selectionW);
 682     return result;
 683 }
 684
 685 /*************************************************************************
 686  *             BrsFolderDlgProc32  (not an exported API function)
 687  */
 688 static INT_PTR CALLBACK BrsFolderDlgProc( HWND hWnd, UINT msg, WPARAM wParam,
 689                                           LPARAM lParam )
 690 {
 691     browse_info *info;
 692
 693     TRACE("hwnd=%p msg=%04x 0x%08lx 0x%08lx\n", hWnd, msg, wParam, lParam );
 694
 695     if (msg == WM_INITDIALOG)
 696         return BrsFolder_OnCreate( hWnd, (browse_info*) lParam );
 697
 698     info = (browse_info*) GetPropW( hWnd, szBrowseFolderInfo );
 699
 700     switch (msg)
 701     {
 702     case WM_NOTIFY:
 703         return BrsFolder_OnNotify( info, (UINT)wParam, (LPNMHDR)lParam);
 704
 705     case WM_COMMAND:
 706         return BrsFolder_OnCommand( info, wParam );
 707
 708     case BFFM_SETSTATUSTEXTA:
 709         TRACE("Set status %s\n", debugstr_a((LPSTR)lParam));
 710         SetWindowTextA(GetDlgItem(hWnd, IDD_STATUS), (LPSTR)lParam);
 711         break;
 712
 713     case BFFM_SETSTATUSTEXTW:
 714         TRACE("Set status %s\n", debugstr_w((LPWSTR)lParam));
 715         SetWindowTextW(GetDlgItem(hWnd, IDD_STATUS), (LPWSTR)lParam);
 716         break;
 717
 718     case BFFM_ENABLEOK:
 719         TRACE("Enable %ld\n", lParam);
 720         EnableWindow(GetDlgItem(hWnd, 1), (lParam)?TRUE:FALSE);
 721         break;
 722
 723     case BFFM_SETOKTEXT: /* unicode only */
 724         TRACE("Set OK text %s\n", debugstr_w((LPWSTR)wParam));
 725         SetWindowTextW(GetDlgItem(hWnd, 1), (LPWSTR)wParam);
 726         break;
 727
 728     case BFFM_SETSELECTIONA:
 729         return BrsFolder_OnSetSelectionA(info, (LPVOID)lParam, (BOOL)wParam);
 730
 731     case BFFM_SETSELECTIONW:
 732         return BrsFolder_OnSetSelectionW(info, (LPVOID)lParam, (BOOL)wParam);
 733
 734     case BFFM_SETEXPANDED: /* unicode only */
 735         return BrsFolder_OnSetExpanded(info, (LPVOID)lParam, (BOOL)wParam, NULL);
 736     }
 737     return FALSE;
 738 }
 739
 740 static const WCHAR swBrowseTemplateName[] = {
 741     'S','H','B','R','S','F','O','R','F','O','L','D','E','R','_','M','S','G','B','O','X',0};
 742 static const WCHAR swNewBrowseTemplateName[] = {
 743     'S','H','N','E','W','B','R','S','F','O','R','F','O','L','D','E','R','_','M','S','G','B','O','X',0};
 744
 745 /*************************************************************************
 746  * SHBrowseForFolderA [SHELL32.@]
 747  * SHBrowseForFolder  [SHELL32.@]
 748  */
 749 LPITEMIDLIST WINAPI SHBrowseForFolderA (LPBROWSEINFOA lpbi)
 750 {
 751     BROWSEINFOW bi;
 752     LPITEMIDLIST lpid;
 753     INT len;
 754     LPWSTR title;
 755
 756     TRACE("%p\n", lpbi);
 757
 758     bi.hwndOwner = lpbi->hwndOwner;
 759     bi.pidlRoot = lpbi->pidlRoot;
 760     if (lpbi->pszDisplayName)
 761     {
 762         bi.pszDisplayName = HeapAlloc( GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR) );
 763         MultiByteToWideChar( CP_ACP, 0, lpbi->pszDisplayName, -1, bi.pszDisplayName, MAX_PATH );
 764     }
 765     else
 766         bi.pszDisplayName = NULL;
 767
 768     if (lpbi->lpszTitle)
 769     {
 770         len = MultiByteToWideChar( CP_ACP, 0, lpbi->lpszTitle, -1, NULL, 0 );
 771         title = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 772         MultiByteToWideChar( CP_ACP, 0, lpbi->lpszTitle, -1, title, len );
 773     }
 774     else
 775         title = NULL;
 776
 777     bi.lpszTitle = title;
 778     bi.ulFlags = lpbi->ulFlags;
 779     bi.lpfn = lpbi->lpfn;
 780     bi.lParam = lpbi->lParam;
 781     bi.iImage = lpbi->iImage;
 782     lpid = SHBrowseForFolderW( &bi );
 783     if (bi.pszDisplayName)
 784     {
 785         WideCharToMultiByte( CP_ACP, 0, bi.pszDisplayName, -1,
 786                              lpbi->pszDisplayName, MAX_PATH, 0, NULL);
 787         HeapFree( GetProcessHeap(), 0, bi.pszDisplayName );
 788     }
 789     HeapFree(GetProcessHeap(), 0, title);
 790     lpbi->iImage = bi.iImage;
 791     return lpid;
 792 }
 793
 794
 795 /*************************************************************************
 796  * SHBrowseForFolderW [SHELL32.@]
 797  *
 798  * NOTES
 799  *  crashes when passed a null pointer
 800  */
 801 LPITEMIDLIST WINAPI SHBrowseForFolderW (LPBROWSEINFOW lpbi)
 802 {
 803     browse_info info;
 804     DWORD r;
 805     HRESULT hr;
 806     const WCHAR * templateName;
 807
 808     info.hWnd = 0;
 809     info.pidlRet = NULL;
 810     info.lpBrowseInfo = lpbi;
 811     info.hwndTreeView = NULL;
 812
 813     hr = OleInitialize(NULL);
 814
 815     if (lpbi->ulFlags & BIF_NEWDIALOGSTYLE)
 816         templateName = swNewBrowseTemplateName;
 817     else
 818         templateName = swBrowseTemplateName;
 819     r = DialogBoxParamW( shell32_hInstance, templateName, lpbi->hwndOwner,
 820                          BrsFolderDlgProc, (LPARAM)&info );
 821     if (SUCCEEDED(hr))
 822         OleUninitialize();
 823     if (!r)
 824         return NULL;
 825
 826     return info.pidlRet;
 827 }