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  */
  24
  25 #include <stdlib.h>
  26 #include <string.h>
  27
  28 #define COBJMACROS
  29 #define NONAMELESSUNION
  30 #define NONAMELESSSTRUCT
  31
  32 #include "wine/debug.h"
  33 #include "undocshell.h"
  34 #include "pidl.h"
  35 #include "shell32_main.h"
  36 #include "shellapi.h"
  37 #include "shresdef.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  40
  41 /* original margins and control size */
  42 typedef struct tagLAYOUT_DATA
  43 {
  44     LONG left, width, right;
  45     LONG top, height, bottom;
  46 } LAYOUT_DATA;
  47
  48 typedef struct tagbrowse_info
  49 {
  50     HWND          hWnd;
  51     HWND          hwndTreeView;
  52     LPBROWSEINFOW lpBrowseInfo;
  53     LPITEMIDLIST  pidlRet;
  54     LAYOUT_DATA  *layout;  /* filled by LayoutInit, used by LayoutUpdate */
  55     SIZE          szMin;
  56 } browse_info;
  57
  58 typedef struct tagTV_ITEMDATA
  59 {
  60    LPSHELLFOLDER lpsfParent; /* IShellFolder of the parent */
  61    LPITEMIDLIST  lpi;        /* PIDL relative to parent */
  62    LPITEMIDLIST  lpifq;      /* Fully qualified PIDL */
  63    IEnumIDList*  pEnumIL;    /* Children iterator */
  64 } TV_ITEMDATA, *LPTV_ITEMDATA;
  65
  66 typedef struct tagLAYOUT_INFO
  67 {
  68     int iItemId;          /* control id */
  69     DWORD dwAnchor;       /* BF_* flags specifying which margins should remain constant */
  70 } LAYOUT_INFO;
  71
  72 static const LAYOUT_INFO g_layout_info[] =
  73 {
  74     {IDD_TITLE,         BF_TOP|BF_LEFT|BF_RIGHT},
  75     {IDD_STATUS,        BF_TOP|BF_LEFT|BF_RIGHT},
  76     {IDD_FOLDER,        BF_TOP|BF_LEFT|BF_RIGHT},
  77     {IDD_TREEVIEW,      BF_TOP|BF_BOTTOM|BF_LEFT|BF_RIGHT},
  78     {IDD_FOLDERTEXT,    BF_BOTTOM|BF_LEFT|BF_RIGHT},
  79     {IDD_MAKENEWFOLDER, BF_BOTTOM|BF_LEFT},
  80     {IDOK,              BF_BOTTOM|BF_RIGHT},
  81     {IDCANCEL,          BF_BOTTOM|BF_RIGHT}
  82 };
  83
  84 #define LAYOUT_INFO_COUNT (sizeof(g_layout_info)/sizeof(g_layout_info[0]))
  85
  86 #define SUPPORTEDFLAGS (BIF_STATUSTEXT | \
  87                         BIF_BROWSEFORCOMPUTER | \
  88                         BIF_RETURNFSANCESTORS | \
  89                         BIF_RETURNONLYFSDIRS | \
  90                         BIF_NONEWFOLDERBUTTON | \
  91                         BIF_NEWDIALOGSTYLE | \
  92                         BIF_BROWSEINCLUDEFILES)
  93
  94 static void FillTreeView(browse_info*, LPSHELLFOLDER,
  95                LPITEMIDLIST, HTREEITEM, IEnumIDList*);
  96 static HTREEITEM InsertTreeViewItem( browse_info*, IShellFolder *,
  97                LPCITEMIDLIST, LPCITEMIDLIST, IEnumIDList*, HTREEITEM);
  98
  99 static const WCHAR szBrowseFolderInfo[] = {
 100     '_','_','W','I','N','E','_',
 101     'B','R','S','F','O','L','D','E','R','D','L','G','_',
 102     'I','N','F','O',0
 103 };
 104
 105 static inline DWORD BrowseFlagsToSHCONTF(UINT ulFlags)
 106 {
 107     return SHCONTF_FOLDERS | (ulFlags & BIF_BROWSEINCLUDEFILES ? SHCONTF_NONFOLDERS : 0);
 108 }
 109
 110 static void browsefolder_callback( LPBROWSEINFOW lpBrowseInfo, HWND hWnd,
 111                                    UINT msg, LPARAM param )
 112 {
 113     if (!lpBrowseInfo->lpfn)
 114         return;
 115     lpBrowseInfo->lpfn( hWnd, msg, param, lpBrowseInfo->lParam );
 116 }
 117
 118 static LAYOUT_DATA *LayoutInit(HWND hwnd, const LAYOUT_INFO *layout_info, int layout_count)
 119 {
 120     LAYOUT_DATA *data;
 121     RECT rcWnd;
 122     int i;
 123
 124     GetClientRect(hwnd, &rcWnd);
 125     data = SHAlloc(sizeof(LAYOUT_DATA)*layout_count);
 126     for (i = 0; i < layout_count; i++)
 127     {
 128         RECT r;
 129         HWND hItem = GetDlgItem(hwnd, layout_info[i].iItemId);
 130
 131         if (hItem == NULL)
 132             ERR("Item %d not found\n", i);
 133         GetWindowRect(hItem, &r);
 134         MapWindowPoints(HWND_DESKTOP, hwnd, (LPPOINT)&r, 2);
 135
 136         data[i].left = r.left;
 137         data[i].right = rcWnd.right - r.right;
 138         data[i].width = r.right - r.left;
 139
 140         data[i].top = r.top;
 141         data[i].bottom = rcWnd.bottom - r.bottom;
 142         data[i].height = r.bottom - r.top;
 143     }
 144     return data;
 145 }
 146
 147 static void LayoutUpdate(HWND hwnd, LAYOUT_DATA *data, const LAYOUT_INFO *layout_info, int layout_count)
 148 {
 149     RECT rcWnd;
 150     int i;
 151
 152     GetClientRect(hwnd, &rcWnd);
 153     for (i = 0; i < layout_count; i++)
 154     {
 155         RECT r;
 156         HWND hItem = GetDlgItem(hwnd, layout_info[i].iItemId);
 157
 158         GetWindowRect(hItem, &r);
 159         MapWindowPoints(HWND_DESKTOP, hwnd, (LPPOINT)&r, 2);
 160
 161         if (layout_info[i].dwAnchor & BF_RIGHT)
 162         {
 163             r.right = rcWnd.right - data[i].right;
 164             if (!(layout_info[i].dwAnchor & BF_LEFT))
 165                 r.left = r.right - data[i].width;
 166         }
 167
 168         if (layout_info[i].dwAnchor & BF_BOTTOM)
 169         {
 170             r.bottom = rcWnd.bottom - data[i].bottom;
 171             if (!(layout_info[i].dwAnchor & BF_TOP))
 172                 r.top = r.bottom - data[i].height;
 173         }
 174
 175         SetWindowPos(hItem, NULL, r.left, r.top, r.right - r.left, r.bottom - r.top, SWP_NOZORDER);
 176     }
 177 }
 178
 179
 180 /******************************************************************************
 181  * InitializeTreeView [Internal]
 182  *
 183  * Called from WM_INITDIALOG handler.
 184  *
 185  * PARAMS
 186  *  hwndParent [I] The BrowseForFolder dialog
 187  *  root       [I] ITEMIDLIST of the root shell folder
 188  */
 189 static void InitializeTreeView( browse_info *info )
 190 {
 191     LPITEMIDLIST pidlParent, pidlChild;
 192     HIMAGELIST hImageList;
 193     HRESULT hr;
 194     IShellFolder *lpsfParent, *lpsfRoot;
 195     IEnumIDList * pEnumChildren = NULL;
 196     HTREEITEM item;
 197     DWORD flags;
 198     LPCITEMIDLIST root = info->lpBrowseInfo->pidlRoot;
 199
 200     TRACE("%p\n", info );
 201
 202     Shell_GetImageList(NULL, &hImageList);
 203
 204     if (hImageList)
 205         SendMessageW( info->hwndTreeView, TVM_SETIMAGELIST, 0, (LPARAM)hImageList );
 206
 207     /* We want to call InsertTreeViewItem down the code, in order to insert
 208      * the root item of the treeview. Due to InsertTreeViewItem's signature,
 209      * we need the following to do this:
 210      *
 211      * + An ITEMIDLIST corresponding to _the parent_ of root.
 212      * + An ITEMIDLIST, which is a relative path from root's parent to root
 213      *   (containing a single SHITEMID).
 214      * + An IShellFolder interface pointer of root's parent folder.
 215      *
 216      * If root is 'Desktop', then root's parent is also 'Desktop'.
 217      */
 218
 219     pidlParent = ILClone(root);
 220     ILRemoveLastID(pidlParent);
 221     pidlChild = ILClone(ILFindLastID(root));
 222
 223     if (_ILIsDesktop(pidlParent)) {
 224         hr = SHGetDesktopFolder(&lpsfParent);
 225     } else {
 226         IShellFolder *lpsfDesktop;
 227         hr = SHGetDesktopFolder(&lpsfDesktop);
 228         if (FAILED(hr)) {
 229             WARN("SHGetDesktopFolder failed! hr = %08x\n", hr);
 230             return;
 231         }
 232         hr = IShellFolder_BindToObject(lpsfDesktop, pidlParent, 0, &IID_IShellFolder, (LPVOID*)&lpsfParent);
 233         IShellFolder_Release(lpsfDesktop);
 234     }
 235
 236     if (FAILED(hr)) {
 237         WARN("Could not bind to parent shell folder! hr = %08x\n", hr);
 238         return;
 239     }
 240
 241     if (pidlChild && pidlChild->mkid.cb) {
 242         hr = IShellFolder_BindToObject(lpsfParent, pidlChild, 0, &IID_IShellFolder, (LPVOID*)&lpsfRoot);
 243     } else {
 244         lpsfRoot = lpsfParent;
 245         hr = IShellFolder_AddRef(lpsfParent);
 246     }
 247
 248     if (FAILED(hr)) {
 249         WARN("Could not bind to root shell folder! hr = %08x\n", hr);
 250         IShellFolder_Release(lpsfParent);
 251         return;
 252     }
 253
 254     flags = BrowseFlagsToSHCONTF( info->lpBrowseInfo->ulFlags );
 255     hr = IShellFolder_EnumObjects( lpsfRoot, info->hWnd, flags, &pEnumChildren );
 256     if (FAILED(hr)) {
 257         WARN("Could not get child iterator! hr = %08x\n", hr);
 258         IShellFolder_Release(lpsfParent);
 259         IShellFolder_Release(lpsfRoot);
 260         return;
 261     }
 262
 263     SendMessageW( info->hwndTreeView, TVM_DELETEITEM, 0, (LPARAM)TVI_ROOT );
 264     item = InsertTreeViewItem( info, lpsfParent, pidlChild,
 265                                pidlParent, pEnumChildren, TVI_ROOT );
 266     SendMessageW( info->hwndTreeView, TVM_EXPAND, TVE_EXPAND, (LPARAM)item );
 267
 268     IShellFolder_Release(lpsfRoot);
 269     IShellFolder_Release(lpsfParent);
 270 }
 271
 272 static int GetIcon(LPCITEMIDLIST lpi, UINT uFlags)
 273 {
 274     SHFILEINFOW sfi;
 275     SHGetFileInfoW((LPCWSTR)lpi, 0 ,&sfi, sizeof(SHFILEINFOW), uFlags);
 276     return sfi.iIcon;
 277 }
 278
 279 static void GetNormalAndSelectedIcons(LPITEMIDLIST lpifq, LPTVITEMW lpTV_ITEM)
 280 {
 281     LPITEMIDLIST pidlDesktop = NULL;
 282     DWORD flags;
 283
 284     TRACE("%p %p\n",lpifq, lpTV_ITEM);
 285
 286     if (!lpifq)
 287     {
 288         pidlDesktop = _ILCreateDesktop();
 289         lpifq = pidlDesktop;
 290     }
 291
 292     flags = SHGFI_PIDL | SHGFI_SYSICONINDEX | SHGFI_SMALLICON;
 293     lpTV_ITEM->iImage = GetIcon( lpifq, flags );
 294
 295     flags = SHGFI_PIDL | SHGFI_SYSICONINDEX | SHGFI_SMALLICON | SHGFI_OPENICON;
 296     lpTV_ITEM->iSelectedImage = GetIcon( lpifq, flags );
 297
 298     if (pidlDesktop)
 299         ILFree( pidlDesktop );
 300 }
 301
 302 /******************************************************************************
 303  * GetName [Internal]
 304  *
 305  * Query a shell folder for the display name of one of it's children
 306  *
 307  * PARAMS
 308  *  lpsf           [I] IShellFolder interface of the folder to be queried.
 309  *  lpi            [I] ITEMIDLIST of the child, relative to parent
 310  *  dwFlags        [I] as in IShellFolder::GetDisplayNameOf
 311  *  lpFriendlyName [O] The desired display name in unicode
 312  *
 313  * RETURNS
 314  *  Success: TRUE
 315  *  Failure: FALSE
 316  */
 317 static BOOL GetName(LPSHELLFOLDER lpsf, LPCITEMIDLIST lpi, DWORD dwFlags, LPWSTR lpFriendlyName)
 318 {
 319         BOOL   bSuccess=TRUE;
 320         STRRET str;
 321
 322         TRACE("%p %p %x %p\n", lpsf, lpi, dwFlags, lpFriendlyName);
 323         if (SUCCEEDED(IShellFolder_GetDisplayNameOf(lpsf, lpi, dwFlags, &str)))
 324           bSuccess = StrRetToStrNW(lpFriendlyName, MAX_PATH, &str, lpi);
 325         else
 326           bSuccess = FALSE;
 327
 328         TRACE("-- %s\n", debugstr_w(lpFriendlyName));
 329         return bSuccess;
 330 }
 331
 332 /******************************************************************************
 333  * InsertTreeViewItem [Internal]
 334  *
 335  * PARAMS
 336  *  info       [I] data for the dialog
 337  *  lpsf       [I] IShellFolder interface of the item's parent shell folder
 338  *  pidl       [I] ITEMIDLIST of the child to insert, relative to parent
 339  *  pidlParent [I] ITEMIDLIST of the parent shell folder
 340  *  pEnumIL    [I] Iterator for the children of the item to be inserted
 341  *  hParent    [I] The treeview-item that represents the parent shell folder
 342  *
 343  * RETURNS
 344  *  Success: Handle to the created and inserted treeview-item
 345  *  Failure: NULL
 346  */
 347 static HTREEITEM InsertTreeViewItem( browse_info *info, IShellFolder * lpsf,
 348     LPCITEMIDLIST pidl, LPCITEMIDLIST pidlParent, IEnumIDList* pEnumIL,
 349     HTREEITEM hParent)
 350 {
 351         TVITEMW         tvi;
 352         TVINSERTSTRUCTW tvins;
 353         WCHAR           szBuff[MAX_PATH];
 354         LPTV_ITEMDATA   lptvid=0;
 355
 356         tvi.mask  = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_PARAM;
 357
 358         tvi.cChildren= pEnumIL ? 1 : 0;
 359         tvi.mask |= TVIF_CHILDREN;
 360
 361         lptvid = SHAlloc( sizeof(TV_ITEMDATA) );
 362         if (!lptvid)
 363             return NULL;
 364
 365         if (!GetName(lpsf, pidl, SHGDN_NORMAL, szBuff))
 366             return NULL;
 367
 368         tvi.pszText    = szBuff;
 369         tvi.cchTextMax = MAX_PATH;
 370         tvi.lParam = (LPARAM)lptvid;
 371
 372         IShellFolder_AddRef(lpsf);
 373         lptvid->lpsfParent = lpsf;
 374         lptvid->lpi     = ILClone(pidl);
 375         lptvid->lpifq   = pidlParent ? ILCombine(pidlParent, pidl) : ILClone(pidl);
 376         lptvid->pEnumIL = pEnumIL;
 377         GetNormalAndSelectedIcons(lptvid->lpifq, &tvi);
 378
 379         tvins.u.item       = tvi;
 380         tvins.hInsertAfter = NULL;
 381         tvins.hParent      = hParent;
 382
 383         return TreeView_InsertItemW( info->hwndTreeView, &tvins );
 384 }
 385
 386 /******************************************************************************
 387  * FillTreeView [Internal]
 388  *
 389  * For each child (given by lpe) of the parent shell folder, which is given by
 390  * lpsf and whose PIDL is pidl, insert a treeview-item right under hParent
 391  *
 392  * PARAMS
 393  *  info    [I] data for the dialog
 394  *  lpsf    [I] IShellFolder interface of the parent shell folder
 395  *  pidl    [I] ITEMIDLIST of the parent shell folder
 396  *  hParent [I] The treeview item that represents the parent shell folder
 397  *  lpe     [I] An iterator for the children of the parent shell folder
 398  */
 399 static void FillTreeView( browse_info *info, IShellFolder * lpsf,
 400                  LPITEMIDLIST  pidl, HTREEITEM hParent, IEnumIDList* lpe)
 401 {
 402         HTREEITEM       hPrev = 0;
 403         LPITEMIDLIST    pidlTemp = 0;
 404         ULONG           ulFetched;
 405         HRESULT         hr;
 406         HWND            hwnd = GetParent( info->hwndTreeView );
 407
 408         TRACE("%p %p %p %p\n",lpsf, pidl, hParent, lpe);
 409
 410         /* No IEnumIDList -> No children */
 411         if (!lpe) return;
 412
 413         SetCapture( hwnd );
 414         SetCursor( LoadCursorA( 0, (LPSTR)IDC_WAIT ) );
 415
 416         while (NOERROR == IEnumIDList_Next(lpe,1,&pidlTemp,&ulFetched))
 417         {
 418             ULONG ulAttrs = SFGAO_HASSUBFOLDER | SFGAO_FOLDER;
 419             IEnumIDList* pEnumIL = NULL;
 420             IShellFolder* pSFChild = NULL;
 421             IShellFolder_GetAttributesOf(lpsf, 1, (LPCITEMIDLIST*)&pidlTemp, &ulAttrs);
 422             if (ulAttrs & SFGAO_FOLDER)
 423             {
 424                 hr = IShellFolder_BindToObject(lpsf,pidlTemp,NULL,&IID_IShellFolder,(LPVOID*)&pSFChild);
 425                 if (SUCCEEDED(hr))
 426                 {
 427                     DWORD flags = BrowseFlagsToSHCONTF(info->lpBrowseInfo->ulFlags);
 428                     hr = IShellFolder_EnumObjects(pSFChild, hwnd, flags, &pEnumIL);
 429                     if (hr == S_OK)
 430                     {
 431                         if ((IEnumIDList_Skip(pEnumIL, 1) != S_OK) ||
 432                              FAILED(IEnumIDList_Reset(pEnumIL)))
 433                         {
 434                             IEnumIDList_Release(pEnumIL);
 435                             pEnumIL = NULL;
 436                         }
 437                     }
 438                     IShellFolder_Release(pSFChild);
 439                 }
 440             }
 441
 442             if (!(hPrev = InsertTreeViewItem(info, lpsf, pidlTemp, pidl, pEnumIL, hParent)))
 443                 goto done;
 444             SHFree(pidlTemp);  /* Finally, free the pidl that the shell gave us... */
 445             pidlTemp=NULL;
 446         }
 447
 448 done:
 449         ReleaseCapture();
 450         SetCursor(LoadCursorW(0, (LPWSTR)IDC_ARROW));
 451     SHFree(pidlTemp);
 452 }
 453
 454 static inline BOOL PIDLIsType(LPCITEMIDLIST pidl, PIDLTYPE type)
 455 {
 456     LPPIDLDATA data = _ILGetDataPointer(pidl);
 457     if (!data)
 458         return FALSE;
 459     return (data->type == type);
 460 }
 461
 462 static void BrsFolder_CheckValidSelection( browse_info *info, LPTV_ITEMDATA lptvid )
 463 {
 464     LPBROWSEINFOW lpBrowseInfo = info->lpBrowseInfo;
 465     LPCITEMIDLIST pidl = lptvid->lpi;
 466     BOOL bEnabled = TRUE;
 467     DWORD dwAttributes;
 468     HRESULT r;
 469
 470     if ((lpBrowseInfo->ulFlags & BIF_BROWSEFORCOMPUTER) &&
 471         !PIDLIsType(pidl, PT_COMP))
 472         bEnabled = FALSE;
 473     if (lpBrowseInfo->ulFlags & BIF_RETURNFSANCESTORS)
 474     {
 475         dwAttributes = SFGAO_FILESYSANCESTOR | SFGAO_FILESYSTEM;
 476         r = IShellFolder_GetAttributesOf(lptvid->lpsfParent, 1,
 477                                 (LPCITEMIDLIST*)&lptvid->lpi, &dwAttributes);
 478         if (FAILED(r) || !(dwAttributes & (SFGAO_FILESYSANCESTOR|SFGAO_FILESYSTEM)))
 479             bEnabled = FALSE;
 480     }
 481     if (lpBrowseInfo->ulFlags & BIF_RETURNONLYFSDIRS)
 482     {
 483         dwAttributes = SFGAO_FOLDER | SFGAO_FILESYSTEM;
 484         r = IShellFolder_GetAttributesOf(lptvid->lpsfParent, 1,
 485                                 (LPCITEMIDLIST*)&lptvid->lpi, &dwAttributes);
 486         if (FAILED(r) ||
 487             ((dwAttributes & (SFGAO_FOLDER|SFGAO_FILESYSTEM)) != (SFGAO_FOLDER|SFGAO_FILESYSTEM)))
 488         {
 489             bEnabled = FALSE;
 490         }
 491     }
 492     SendMessageW(info->hWnd, BFFM_ENABLEOK, 0, (LPARAM)bEnabled);
 493 }
 494
 495 static LRESULT BrsFolder_Treeview_Delete( browse_info *info, NMTREEVIEWW *pnmtv )
 496 {
 497     LPTV_ITEMDATA lptvid = (LPTV_ITEMDATA)pnmtv->itemOld.lParam;
 498
 499     TRACE("TVN_DELETEITEMA/W %p\n", lptvid);
 500
 501     IShellFolder_Release(lptvid->lpsfParent);
 502     if (lptvid->pEnumIL)
 503         IEnumIDList_Release(lptvid->pEnumIL);
 504     SHFree(lptvid->lpi);
 505     SHFree(lptvid->lpifq);
 506     SHFree(lptvid);
 507     return 0;
 508 }
 509
 510 static LRESULT BrsFolder_Treeview_Expand( browse_info *info, NMTREEVIEWW *pnmtv )
 511 {
 512     IShellFolder *lpsf2 = NULL;
 513     LPTV_ITEMDATA lptvid = (LPTV_ITEMDATA) pnmtv->itemNew.lParam;
 514     HRESULT r;
 515
 516     TRACE("TVN_ITEMEXPANDINGA/W\n");
 517
 518     if ((pnmtv->itemNew.state & TVIS_EXPANDEDONCE))
 519         return 0;
 520
 521     if (lptvid->lpi && lptvid->lpi->mkid.cb) {
 522         r = IShellFolder_BindToObject( lptvid->lpsfParent, lptvid->lpi, 0,
 523                                       (REFIID)&IID_IShellFolder, (LPVOID *)&lpsf2 );
 524     } else {
 525         lpsf2 = lptvid->lpsfParent;
 526         r = IShellFolder_AddRef(lpsf2);
 527     }
 528
 529     if (SUCCEEDED(r))
 530         FillTreeView( info, lpsf2, lptvid->lpifq, pnmtv->itemNew.hItem, lptvid->pEnumIL);
 531
 532     /* My Computer is already sorted and trying to do a simple text
 533      * sort will only mess things up */
 534     if (!_ILIsMyComputer(lptvid->lpi))
 535         SendMessageW( info->hwndTreeView, TVM_SORTCHILDREN,
 536                       FALSE, (LPARAM)pnmtv->itemNew.hItem );
 537
 538     return 0;
 539 }
 540
 541 static HRESULT BrsFolder_Treeview_Changed( browse_info *info, NMTREEVIEWW *pnmtv )
 542 {
 543     LPTV_ITEMDATA lptvid = (LPTV_ITEMDATA) pnmtv->itemNew.lParam;
 544
 545     lptvid = (LPTV_ITEMDATA) pnmtv->itemNew.lParam;
 546     info->pidlRet = lptvid->lpifq;
 547     browsefolder_callback( info->lpBrowseInfo, info->hWnd, BFFM_SELCHANGED,
 548                            (LPARAM)info->pidlRet );
 549     BrsFolder_CheckValidSelection( info, lptvid );
 550     return 0;
 551 }
 552
 553 static LRESULT BrsFolder_OnNotify( browse_info *info, UINT CtlID, LPNMHDR lpnmh )
 554 {
 555     NMTREEVIEWW *pnmtv = (NMTREEVIEWW *)lpnmh;
 556
 557     TRACE("%p %x %p msg=%x\n", info, CtlID, lpnmh, pnmtv->hdr.code);
 558
 559     if (pnmtv->hdr.idFrom != IDD_TREEVIEW)
 560         return 0;
 561
 562     switch (pnmtv->hdr.code)
 563     {
 564     case TVN_DELETEITEMA:
 565     case TVN_DELETEITEMW:
 566         return BrsFolder_Treeview_Delete( info, pnmtv );
 567
 568     case TVN_ITEMEXPANDINGA:
 569     case TVN_ITEMEXPANDINGW:
 570         return BrsFolder_Treeview_Expand( info, pnmtv );
 571
 572     case TVN_SELCHANGEDA:
 573     case TVN_SELCHANGEDW:
 574         return BrsFolder_Treeview_Changed( info, pnmtv );
 575
 576     default:
 577         WARN("unhandled (%d)\n", pnmtv->hdr.code);
 578         break;
 579     }
 580
 581     return 0;
 582 }
 583
 584
 585 static BOOL BrsFolder_OnCreate( HWND hWnd, browse_info *info )
 586 {
 587     LPBROWSEINFOW lpBrowseInfo = info->lpBrowseInfo;
 588
 589     info->hWnd = hWnd;
 590     SetPropW( hWnd, szBrowseFolderInfo, info );
 591
 592     if (lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE)
 593         FIXME("flags BIF_NEWDIALOGSTYLE partially implemented\n");
 594     if (lpBrowseInfo->ulFlags & ~SUPPORTEDFLAGS)
 595         FIXME("flags %x not implemented\n", lpBrowseInfo->ulFlags & ~SUPPORTEDFLAGS);
 596
 597     if (lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE)
 598     {
 599         RECT rcWnd;
 600
 601         info->layout = LayoutInit(hWnd, g_layout_info, LAYOUT_INFO_COUNT);
 602
 603         /* TODO: Windows allows shrinking the windows a bit */
 604         GetWindowRect(hWnd, &rcWnd);
 605         info->szMin.cx = rcWnd.right - rcWnd.left;
 606         info->szMin.cy = rcWnd.bottom - rcWnd.top;
 607     }
 608     else
 609     {
 610         info->layout = NULL;
 611     }
 612
 613     if (lpBrowseInfo->lpszTitle)
 614         SetWindowTextW( GetDlgItem(hWnd, IDD_TITLE), lpBrowseInfo->lpszTitle );
 615     else
 616         ShowWindow( GetDlgItem(hWnd, IDD_TITLE), SW_HIDE );
 617
 618     if (!(lpBrowseInfo->ulFlags & BIF_STATUSTEXT)
 619         || (lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE))
 620         ShowWindow( GetDlgItem(hWnd, IDD_STATUS), SW_HIDE );
 621
 622     /* Hide "Make New Folder" Button? */
 623     if ((lpBrowseInfo->ulFlags & BIF_NONEWFOLDERBUTTON)
 624         || !(lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE))
 625         ShowWindow( GetDlgItem(hWnd, IDD_MAKENEWFOLDER), SW_HIDE );
 626
 627     /* Hide the editbox? */
 628     if (!(lpBrowseInfo->ulFlags & BIF_EDITBOX))
 629     {
 630         ShowWindow( GetDlgItem(hWnd, IDD_FOLDER), SW_HIDE );
 631         ShowWindow( GetDlgItem(hWnd, IDD_FOLDERTEXT), SW_HIDE );
 632     }
 633
 634     info->hwndTreeView = GetDlgItem( hWnd, IDD_TREEVIEW );
 635     if (info->hwndTreeView)
 636     {
 637         InitializeTreeView( info );
 638
 639         /* Resize the treeview if there's not editbox */
 640         if ((lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE)
 641             && !(lpBrowseInfo->ulFlags & BIF_EDITBOX))
 642         {
 643             RECT rc;
 644             GetClientRect(info->hwndTreeView, &rc);
 645             SetWindowPos(info->hwndTreeView, HWND_TOP, 0, 0,
 646                          rc.right, rc.bottom + 40, SWP_NOMOVE);
 647         }
 648     }
 649     else
 650         ERR("treeview control missing!\n");
 651
 652     browsefolder_callback( info->lpBrowseInfo, hWnd, BFFM_INITIALIZED, 0 );
 653
 654     return TRUE;
 655 }
 656
 657 static BOOL BrsFolder_OnCommand( browse_info *info, UINT id )
 658 {
 659     LPBROWSEINFOW lpBrowseInfo = info->lpBrowseInfo;
 660
 661     switch (id)
 662     {
 663     case IDOK:
 664         /* The original pidl is owned by the treeview and will be free'd. */
 665         info->pidlRet = ILClone(info->pidlRet);
 666         if (info->pidlRet == NULL) /* A null pidl would mean a cancel */
 667             info->pidlRet = _ILCreateDesktop();
 668         pdump( info->pidlRet );
 669         if (lpBrowseInfo->pszDisplayName)
 670             SHGetPathFromIDListW( info->pidlRet, lpBrowseInfo->pszDisplayName );
 671         EndDialog( info->hWnd, 1 );
 672         return TRUE;
 673
 674     case IDCANCEL:
 675         EndDialog( info->hWnd, 0 );
 676         return TRUE;
 677
 678     case IDD_MAKENEWFOLDER:
 679         FIXME("make new folder not implemented\n");
 680         return TRUE;
 681     }
 682     return FALSE;
 683 }
 684
 685 static BOOL BrsFolder_OnSetExpanded(browse_info *info, LPVOID selection,
 686     BOOL is_str, HTREEITEM *pItem)
 687 {
 688     LPITEMIDLIST pidlSelection = (LPITEMIDLIST)selection;
 689     LPCITEMIDLIST pidlCurrent, pidlRoot;
 690     TVITEMEXW item;
 691     BOOL bResult = FALSE;
 692
 693     /* If 'selection' is a string, convert to a Shell ID List. */
 694     if (is_str) {
 695         IShellFolder *psfDesktop;
 696         HRESULT hr;
 697
 698         hr = SHGetDesktopFolder(&psfDesktop);
 699         if (FAILED(hr))
 700             goto done;
 701
 702         hr = IShellFolder_ParseDisplayName(psfDesktop, NULL, NULL,
 703                      (LPOLESTR)selection, NULL, &pidlSelection, NULL);
 704         IShellFolder_Release(psfDesktop);
 705         if (FAILED(hr))
 706             goto done;
 707     }
 708
 709     /* Move pidlCurrent behind the SHITEMIDs in pidlSelection, which are the root of
 710      * the sub-tree currently displayed. */
 711     pidlRoot = info->lpBrowseInfo->pidlRoot;
 712     pidlCurrent = pidlSelection;
 713     while (!_ILIsEmpty(pidlRoot) && _ILIsEqualSimple(pidlRoot, pidlCurrent)) {
 714         pidlRoot = ILGetNext(pidlRoot);
 715         pidlCurrent = ILGetNext(pidlCurrent);
 716     }
 717
 718     /* The given ID List is not part of the SHBrowseForFolder's current sub-tree. */
 719     if (!_ILIsEmpty(pidlRoot))
 720         goto done;
 721
 722     /* Initialize item to point to the first child of the root folder. */
 723     memset(&item, 0, sizeof(item));
 724     item.mask = TVIF_PARAM;
 725     item.hItem = TreeView_GetRoot(info->hwndTreeView);
 726     if (item.hItem)
 727         item.hItem = TreeView_GetChild(info->hwndTreeView, item.hItem);
 728
 729     /* Walk the tree along the nodes corresponding to the remaining ITEMIDLIST */
 730     while (item.hItem && !_ILIsEmpty(pidlCurrent)) {
 731         LPTV_ITEMDATA pItemData;
 732
 733         SendMessageW(info->hwndTreeView, TVM_GETITEMW, 0, (LPARAM)&item);
 734         pItemData = (LPTV_ITEMDATA)item.lParam;
 735
 736         if (_ILIsEqualSimple(pItemData->lpi, pidlCurrent)) {
 737             pidlCurrent = ILGetNext(pidlCurrent);
 738             if (!_ILIsEmpty(pidlCurrent)) {
 739                 /* Only expand current node and move on to it's first child,
 740                  * if we didn't already reach the last SHITEMID */
 741                 SendMessageW(info->hwndTreeView, TVM_EXPAND, TVE_EXPAND, (LPARAM)item.hItem);
 742                 item.hItem = TreeView_GetChild(info->hwndTreeView, item.hItem);
 743             }
 744         } else {
 745             item.hItem = TreeView_GetNextSibling(info->hwndTreeView, item.hItem);
 746         }
 747     }
 748
 749     if (_ILIsEmpty(pidlCurrent) && item.hItem)
 750         bResult = TRUE;
 751
 752 done:
 753     if (pidlSelection && pidlSelection != (LPITEMIDLIST)selection)
 754         ILFree(pidlSelection);
 755
 756     if (pItem)
 757         *pItem = item.hItem;
 758
 759     return bResult;
 760 }
 761
 762 static BOOL BrsFolder_OnSetSelectionW(browse_info *info, LPVOID selection, BOOL is_str) {
 763     HTREEITEM hItem;
 764     BOOL bResult;
 765
 766     bResult = BrsFolder_OnSetExpanded(info, selection, is_str, &hItem);
 767     if (bResult)
 768         SendMessageW(info->hwndTreeView, TVM_SELECTITEM, TVGN_CARET, (LPARAM)hItem );
 769     return bResult;
 770 }
 771
 772 static BOOL BrsFolder_OnSetSelectionA(browse_info *info, LPVOID selection, BOOL is_str) {
 773     LPWSTR selectionW = NULL;
 774     BOOL result = FALSE;
 775     int length;
 776
 777     if (!is_str)
 778         return BrsFolder_OnSetSelectionW(info, selection, is_str);
 779
 780     if ((length = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)selection, -1, NULL, 0)) &&
 781         (selectionW = HeapAlloc(GetProcessHeap(), 0, length * sizeof(WCHAR))) &&
 782         MultiByteToWideChar(CP_ACP, 0, (LPCSTR)selection, -1, selectionW, length))
 783     {
 784         result = BrsFolder_OnSetSelectionW(info, selectionW, is_str);
 785     }
 786
 787     HeapFree(GetProcessHeap(), 0, selectionW);
 788     return result;
 789 }
 790
 791 static BOOL BrsFolder_OnWindowPosChanging(browse_info *info, WINDOWPOS *pos)
 792 {
 793     if ((info->lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE) && !(pos->flags & SWP_NOSIZE))
 794     {
 795         if (pos->cx < info->szMin.cx)
 796             pos->cx = info->szMin.cx;
 797         if (pos->cy < info->szMin.cy)
 798             pos->cy = info->szMin.cy;
 799     }
 800     return 0;
 801 }
 802
 803 /*************************************************************************
 804  *             BrsFolderDlgProc32  (not an exported API function)
 805  */
 806 static INT_PTR CALLBACK BrsFolderDlgProc( HWND hWnd, UINT msg, WPARAM wParam,
 807                                           LPARAM lParam )
 808 {
 809     browse_info *info;
 810
 811     TRACE("hwnd=%p msg=%04x 0x%08lx 0x%08lx\n", hWnd, msg, wParam, lParam );
 812
 813     if (msg == WM_INITDIALOG)
 814         return BrsFolder_OnCreate( hWnd, (browse_info*) lParam );
 815
 816     info = GetPropW( hWnd, szBrowseFolderInfo );
 817
 818     switch (msg)
 819     {
 820     case WM_NOTIFY:
 821         return BrsFolder_OnNotify( info, (UINT)wParam, (LPNMHDR)lParam);
 822
 823     case WM_COMMAND:
 824         return BrsFolder_OnCommand( info, wParam );
 825
 826     case WM_WINDOWPOSCHANGING:
 827         return BrsFolder_OnWindowPosChanging( info, (WINDOWPOS *)lParam);
 828
 829     case WM_SIZE:
 830         if (info->layout)  /* new style dialogs */
 831             LayoutUpdate(hWnd, info->layout, g_layout_info, LAYOUT_INFO_COUNT);
 832         return 0;
 833
 834     case BFFM_SETSTATUSTEXTA:
 835         TRACE("Set status %s\n", debugstr_a((LPSTR)lParam));
 836         SetWindowTextA(GetDlgItem(hWnd, IDD_STATUS), (LPSTR)lParam);
 837         break;
 838
 839     case BFFM_SETSTATUSTEXTW:
 840         TRACE("Set status %s\n", debugstr_w((LPWSTR)lParam));
 841         SetWindowTextW(GetDlgItem(hWnd, IDD_STATUS), (LPWSTR)lParam);
 842         break;
 843
 844     case BFFM_ENABLEOK:
 845         TRACE("Enable %ld\n", lParam);
 846         EnableWindow(GetDlgItem(hWnd, 1), (lParam)?TRUE:FALSE);
 847         break;
 848
 849     case BFFM_SETOKTEXT: /* unicode only */
 850         TRACE("Set OK text %s\n", debugstr_w((LPWSTR)wParam));
 851         SetWindowTextW(GetDlgItem(hWnd, 1), (LPWSTR)wParam);
 852         break;
 853
 854     case BFFM_SETSELECTIONA:
 855         return BrsFolder_OnSetSelectionA(info, (LPVOID)lParam, (BOOL)wParam);
 856
 857     case BFFM_SETSELECTIONW:
 858         return BrsFolder_OnSetSelectionW(info, (LPVOID)lParam, (BOOL)wParam);
 859
 860     case BFFM_SETEXPANDED: /* unicode only */
 861         return BrsFolder_OnSetExpanded(info, (LPVOID)lParam, (BOOL)wParam, NULL);
 862     }
 863     return FALSE;
 864 }
 865
 866 static const WCHAR swBrowseTemplateName[] = {
 867     'S','H','B','R','S','F','O','R','F','O','L','D','E','R','_','M','S','G','B','O','X',0};
 868 static const WCHAR swNewBrowseTemplateName[] = {
 869     'S','H','N','E','W','B','R','S','F','O','R','F','O','L','D','E','R','_','M','S','G','B','O','X',0};
 870
 871 /*************************************************************************
 872  * SHBrowseForFolderA [SHELL32.@]
 873  * SHBrowseForFolder  [SHELL32.@]
 874  */
 875 LPITEMIDLIST WINAPI SHBrowseForFolderA (LPBROWSEINFOA lpbi)
 876 {
 877     BROWSEINFOW bi;
 878     LPITEMIDLIST lpid;
 879     INT len;
 880     LPWSTR title;
 881
 882     TRACE("%p\n", lpbi);
 883
 884     bi.hwndOwner = lpbi->hwndOwner;
 885     bi.pidlRoot = lpbi->pidlRoot;
 886     if (lpbi->pszDisplayName)
 887     {
 888         bi.pszDisplayName = HeapAlloc( GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR) );
 889         MultiByteToWideChar( CP_ACP, 0, lpbi->pszDisplayName, -1, bi.pszDisplayName, MAX_PATH );
 890     }
 891     else
 892         bi.pszDisplayName = NULL;
 893
 894     if (lpbi->lpszTitle)
 895     {
 896         len = MultiByteToWideChar( CP_ACP, 0, lpbi->lpszTitle, -1, NULL, 0 );
 897         title = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 898         MultiByteToWideChar( CP_ACP, 0, lpbi->lpszTitle, -1, title, len );
 899     }
 900     else
 901         title = NULL;
 902
 903     bi.lpszTitle = title;
 904     bi.ulFlags = lpbi->ulFlags;
 905     bi.lpfn = lpbi->lpfn;
 906     bi.lParam = lpbi->lParam;
 907     bi.iImage = lpbi->iImage;
 908     lpid = SHBrowseForFolderW( &bi );
 909     if (bi.pszDisplayName)
 910     {
 911         WideCharToMultiByte( CP_ACP, 0, bi.pszDisplayName, -1,
 912                              lpbi->pszDisplayName, MAX_PATH, 0, NULL);
 913         HeapFree( GetProcessHeap(), 0, bi.pszDisplayName );
 914     }
 915     HeapFree(GetProcessHeap(), 0, title);
 916     lpbi->iImage = bi.iImage;
 917     return lpid;
 918 }
 919
 920
 921 /*************************************************************************
 922  * SHBrowseForFolderW [SHELL32.@]
 923  *
 924  * NOTES
 925  *  crashes when passed a null pointer
 926  */
 927 LPITEMIDLIST WINAPI SHBrowseForFolderW (LPBROWSEINFOW lpbi)
 928 {
 929     browse_info info;
 930     DWORD r;
 931     HRESULT hr;
 932     const WCHAR * templateName;
 933
 934     info.hWnd = 0;
 935     info.pidlRet = NULL;
 936     info.lpBrowseInfo = lpbi;
 937     info.hwndTreeView = NULL;
 938
 939     hr = OleInitialize(NULL);
 940
 941     if (lpbi->ulFlags & BIF_NEWDIALOGSTYLE)
 942         templateName = swNewBrowseTemplateName;
 943     else
 944         templateName = swBrowseTemplateName;
 945     r = DialogBoxParamW( shell32_hInstance, templateName, lpbi->hwndOwner,
 946                          BrsFolderDlgProc, (LPARAM)&info );
 947     if (SUCCEEDED(hr))
 948         OleUninitialize();
 949     if (!r)
 950         return NULL;
 951
 952     return info.pidlRet;
 953 }