shell32: COM cleanup for IExtractIconA.
[wine] / 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 editbox
22  */
23
24 #include <stdlib.h>
25 #include <string.h>
26
27 #define COBJMACROS
28 #define NONAMELESSUNION
29 #define NONAMELESSSTRUCT
30
31 #include "wine/debug.h"
32 #include "undocshell.h"
33 #include "pidl.h"
34 #include "shell32_main.h"
35 #include "shellapi.h"
36 #include "shresdef.h"
37 #include "shellfolder.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_FOLDER,        BF_BOTTOM|BF_LEFT},
79     {IDD_FOLDERTEXT,    BF_BOTTOM|BF_LEFT|BF_RIGHT},
80     {IDD_MAKENEWFOLDER, BF_BOTTOM|BF_LEFT},
81     {IDOK,              BF_BOTTOM|BF_RIGHT},
82     {IDCANCEL,          BF_BOTTOM|BF_RIGHT}
83 };
84
85 #define LAYOUT_INFO_COUNT (sizeof(g_layout_info)/sizeof(g_layout_info[0]))
86
87 #define SUPPORTEDFLAGS (BIF_STATUSTEXT | \
88                         BIF_BROWSEFORCOMPUTER | \
89                         BIF_RETURNFSANCESTORS | \
90                         BIF_RETURNONLYFSDIRS | \
91                         BIF_NONEWFOLDERBUTTON | \
92                         BIF_NEWDIALOGSTYLE | \
93                         BIF_BROWSEINCLUDEFILES)
94
95 static void FillTreeView(browse_info*, LPSHELLFOLDER,
96                LPITEMIDLIST, HTREEITEM, IEnumIDList*);
97 static HTREEITEM InsertTreeViewItem( browse_info*, IShellFolder *,
98                LPCITEMIDLIST, LPCITEMIDLIST, IEnumIDList*, HTREEITEM);
99
100 static const WCHAR szBrowseFolderInfo[] = {
101     '_','_','W','I','N','E','_',
102     'B','R','S','F','O','L','D','E','R','D','L','G','_',
103     'I','N','F','O',0
104 };
105
106 static inline DWORD BrowseFlagsToSHCONTF(UINT ulFlags)
107 {
108     return SHCONTF_FOLDERS | (ulFlags & BIF_BROWSEINCLUDEFILES ? SHCONTF_NONFOLDERS : 0);
109 }
110
111 static void browsefolder_callback( LPBROWSEINFOW lpBrowseInfo, HWND hWnd,
112                                    UINT msg, LPARAM param )
113 {
114     if (!lpBrowseInfo->lpfn)
115         return;
116     lpBrowseInfo->lpfn( hWnd, msg, param, lpBrowseInfo->lParam );
117 }
118
119 static LAYOUT_DATA *LayoutInit(HWND hwnd, const LAYOUT_INFO *layout_info, int layout_count)
120 {
121     LAYOUT_DATA *data;
122     RECT rcWnd;
123     int i;
124
125     GetClientRect(hwnd, &rcWnd);
126     data = SHAlloc(sizeof(LAYOUT_DATA)*layout_count);
127     for (i = 0; i < layout_count; i++)
128     {
129         RECT r;
130         HWND hItem = GetDlgItem(hwnd, layout_info[i].iItemId);
131
132         if (hItem == NULL)
133             ERR("Item %d not found\n", i);
134         GetWindowRect(hItem, &r);
135         MapWindowPoints(HWND_DESKTOP, hwnd, (LPPOINT)&r, 2);
136
137         data[i].left = r.left;
138         data[i].right = rcWnd.right - r.right;
139         data[i].width = r.right - r.left;
140
141         data[i].top = r.top;
142         data[i].bottom = rcWnd.bottom - r.bottom;
143         data[i].height = r.bottom - r.top;
144     }
145     return data;
146 }
147
148 static void LayoutUpdate(HWND hwnd, LAYOUT_DATA *data, const LAYOUT_INFO *layout_info, int layout_count)
149 {
150     RECT rcWnd;
151     int i;
152
153     GetClientRect(hwnd, &rcWnd);
154     for (i = 0; i < layout_count; i++)
155     {
156         RECT r;
157         HWND hItem = GetDlgItem(hwnd, layout_info[i].iItemId);
158
159         GetWindowRect(hItem, &r);
160         MapWindowPoints(HWND_DESKTOP, hwnd, (LPPOINT)&r, 2);
161
162         if (layout_info[i].dwAnchor & BF_RIGHT)
163         {
164             r.right = rcWnd.right - data[i].right;
165             if (!(layout_info[i].dwAnchor & BF_LEFT))
166                 r.left = r.right - data[i].width;
167         }
168
169         if (layout_info[i].dwAnchor & BF_BOTTOM)
170         {
171             r.bottom = rcWnd.bottom - data[i].bottom;
172             if (!(layout_info[i].dwAnchor & BF_TOP))
173                 r.top = r.bottom - data[i].height;
174         }
175
176         SetWindowPos(hItem, NULL, r.left, r.top, r.right - r.left, r.bottom - r.top, SWP_NOZORDER);
177     }
178 }
179
180
181 /******************************************************************************
182  * InitializeTreeView [Internal]
183  *
184  * Called from WM_INITDIALOG handler.
185  * 
186  * PARAMS
187  *  hwndParent [I] The BrowseForFolder dialog
188  *  root       [I] ITEMIDLIST of the root shell folder
189  */
190 static void InitializeTreeView( browse_info *info )
191 {
192     LPITEMIDLIST pidlParent, pidlChild;
193     HIMAGELIST hImageList;
194     HRESULT hr;
195     IShellFolder *lpsfParent, *lpsfRoot;
196     IEnumIDList * pEnumChildren = NULL;
197     HTREEITEM item;
198     DWORD flags;
199     LPCITEMIDLIST root = info->lpBrowseInfo->pidlRoot;
200
201     TRACE("%p\n", info );
202     
203     Shell_GetImageLists(NULL, &hImageList);
204
205     if (hImageList)
206         SendMessageW( info->hwndTreeView, TVM_SETIMAGELIST, 0, (LPARAM)hImageList );
207
208     /* We want to call InsertTreeViewItem down the code, in order to insert
209      * the root item of the treeview. Due to InsertTreeViewItem's signature, 
210      * we need the following to do this:
211      *
212      * + An ITEMIDLIST corresponding to _the parent_ of root. 
213      * + An ITEMIDLIST, which is a relative path from root's parent to root 
214      *   (containing a single SHITEMID).
215      * + An IShellFolder interface pointer of root's parent folder.
216      *
217      * If root is 'Desktop', then root's parent is also 'Desktop'.
218      */
219
220     pidlParent = ILClone(root);
221     ILRemoveLastID(pidlParent);
222     pidlChild = ILClone(ILFindLastID(root));
223     
224     if (_ILIsDesktop(pidlParent)) {
225         hr = SHGetDesktopFolder(&lpsfParent);
226     } else {
227         IShellFolder *lpsfDesktop;
228         hr = SHGetDesktopFolder(&lpsfDesktop);
229         if (FAILED(hr)) {
230             WARN("SHGetDesktopFolder failed! hr = %08x\n", hr);
231             ILFree(pidlChild);
232             ILFree(pidlParent);
233             return;
234         }
235         hr = IShellFolder_BindToObject(lpsfDesktop, pidlParent, 0, &IID_IShellFolder, (LPVOID*)&lpsfParent);
236         IShellFolder_Release(lpsfDesktop);
237     }
238
239     if (FAILED(hr)) {
240         WARN("Could not bind to parent shell folder! hr = %08x\n", hr);
241         ILFree(pidlChild);
242         ILFree(pidlParent);
243         return;
244     }
245
246     if (!_ILIsEmpty(pidlChild)) {
247         hr = IShellFolder_BindToObject(lpsfParent, pidlChild, 0, &IID_IShellFolder, (LPVOID*)&lpsfRoot);
248     } else {
249         lpsfRoot = lpsfParent;
250         hr = IShellFolder_AddRef(lpsfParent);
251     }
252
253     if (FAILED(hr)) {
254         WARN("Could not bind to root shell folder! hr = %08x\n", hr);
255         IShellFolder_Release(lpsfParent);
256         ILFree(pidlChild);
257         ILFree(pidlParent);
258         return;
259     }
260
261     flags = BrowseFlagsToSHCONTF( info->lpBrowseInfo->ulFlags );
262     hr = IShellFolder_EnumObjects( lpsfRoot, info->hWnd, flags, &pEnumChildren );
263     if (FAILED(hr)) {
264         WARN("Could not get child iterator! hr = %08x\n", hr);
265         IShellFolder_Release(lpsfParent);
266         IShellFolder_Release(lpsfRoot);
267         ILFree(pidlChild);
268         ILFree(pidlParent);
269         return;
270     }
271
272     SendMessageW( info->hwndTreeView, TVM_DELETEITEM, 0, (LPARAM)TVI_ROOT );
273     item = InsertTreeViewItem( info, lpsfParent, pidlChild,
274                                pidlParent, pEnumChildren, TVI_ROOT );
275     SendMessageW( info->hwndTreeView, TVM_EXPAND, TVE_EXPAND, (LPARAM)item );
276
277     ILFree(pidlChild);
278     ILFree(pidlParent);
279     IShellFolder_Release(lpsfRoot);
280     IShellFolder_Release(lpsfParent);
281 }
282
283 static int GetIcon(LPCITEMIDLIST lpi, UINT uFlags)
284 {
285     SHFILEINFOW sfi;
286     SHGetFileInfoW((LPCWSTR)lpi, 0 ,&sfi, sizeof(SHFILEINFOW), uFlags);
287     return sfi.iIcon;
288 }
289
290 static void GetNormalAndSelectedIcons(LPITEMIDLIST lpifq, LPTVITEMW lpTV_ITEM)
291 {
292     LPITEMIDLIST pidlDesktop = NULL;
293     DWORD flags;
294
295     TRACE("%p %p\n",lpifq, lpTV_ITEM);
296
297     if (!lpifq)
298     {
299         pidlDesktop = _ILCreateDesktop();
300         lpifq = pidlDesktop;
301     }
302
303     flags = SHGFI_PIDL | SHGFI_SYSICONINDEX | SHGFI_SMALLICON;
304     lpTV_ITEM->iImage = GetIcon( lpifq, flags );
305
306     flags = SHGFI_PIDL | SHGFI_SYSICONINDEX | SHGFI_SMALLICON | SHGFI_OPENICON;
307     lpTV_ITEM->iSelectedImage = GetIcon( lpifq, flags );
308
309     if (pidlDesktop)
310         ILFree( pidlDesktop );
311 }
312
313 /******************************************************************************
314  * GetName [Internal]
315  *
316  * Query a shell folder for the display name of one of it's children
317  *
318  * PARAMS
319  *  lpsf           [I] IShellFolder interface of the folder to be queried.
320  *  lpi            [I] ITEMIDLIST of the child, relative to parent
321  *  dwFlags        [I] as in IShellFolder::GetDisplayNameOf
322  *  lpFriendlyName [O] The desired display name in unicode
323  *
324  * RETURNS
325  *  Success: TRUE
326  *  Failure: FALSE
327  */
328 static BOOL GetName(LPSHELLFOLDER lpsf, LPCITEMIDLIST lpi, DWORD dwFlags, LPWSTR lpFriendlyName)
329 {
330         BOOL   bSuccess=TRUE;
331         STRRET str;
332
333         TRACE("%p %p %x %p\n", lpsf, lpi, dwFlags, lpFriendlyName);
334         if (SUCCEEDED(IShellFolder_GetDisplayNameOf(lpsf, lpi, dwFlags, &str)))
335           bSuccess = StrRetToStrNW(lpFriendlyName, MAX_PATH, &str, lpi);
336         else
337           bSuccess = FALSE;
338
339         TRACE("-- %s\n", debugstr_w(lpFriendlyName));
340         return bSuccess;
341 }
342
343 /******************************************************************************
344  * InsertTreeViewItem [Internal]
345  *
346  * PARAMS
347  *  info       [I] data for the dialog
348  *  lpsf       [I] IShellFolder interface of the item's parent shell folder 
349  *  pidl       [I] ITEMIDLIST of the child to insert, relative to parent
350  *  pidlParent [I] ITEMIDLIST of the parent shell folder
351  *  pEnumIL    [I] Iterator for the children of the item to be inserted
352  *  hParent    [I] The treeview-item that represents the parent shell folder
353  *
354  * RETURNS
355  *  Success: Handle to the created and inserted treeview-item
356  *  Failure: NULL
357  */
358 static HTREEITEM InsertTreeViewItem( browse_info *info, IShellFolder * lpsf,
359     LPCITEMIDLIST pidl, LPCITEMIDLIST pidlParent, IEnumIDList* pEnumIL,
360     HTREEITEM hParent)
361 {
362         TVITEMW         tvi;
363         TVINSERTSTRUCTW tvins;
364         WCHAR           szBuff[MAX_PATH];
365         LPTV_ITEMDATA   lptvid=0;
366
367         tvi.mask  = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_PARAM;
368
369         tvi.cChildren= pEnumIL ? 1 : 0;
370         tvi.mask |= TVIF_CHILDREN;
371
372         lptvid = SHAlloc( sizeof(TV_ITEMDATA) );
373         if (!lptvid)
374             return NULL;
375
376         if (!GetName(lpsf, pidl, SHGDN_NORMAL, szBuff))
377             return NULL;
378
379         tvi.pszText    = szBuff;
380         tvi.cchTextMax = MAX_PATH;
381         tvi.lParam = (LPARAM)lptvid;
382
383         IShellFolder_AddRef(lpsf);
384         lptvid->lpsfParent = lpsf;
385         lptvid->lpi     = ILClone(pidl);
386         lptvid->lpifq   = pidlParent ? ILCombine(pidlParent, pidl) : ILClone(pidl);
387         lptvid->pEnumIL = pEnumIL;
388         GetNormalAndSelectedIcons(lptvid->lpifq, &tvi);
389
390         tvins.u.item       = tvi;
391         tvins.hInsertAfter = NULL;
392         tvins.hParent      = hParent;
393
394         return TreeView_InsertItemW( info->hwndTreeView, &tvins );
395 }
396
397 /******************************************************************************
398  * FillTreeView [Internal]
399  *
400  * For each child (given by lpe) of the parent shell folder, which is given by 
401  * lpsf and whose PIDL is pidl, insert a treeview-item right under hParent
402  *
403  * PARAMS
404  *  info    [I] data for the dialog
405  *  lpsf    [I] IShellFolder interface of the parent shell folder
406  *  pidl    [I] ITEMIDLIST of the parent shell folder
407  *  hParent [I] The treeview item that represents the parent shell folder
408  *  lpe     [I] An iterator for the children of the parent shell folder
409  */
410 static void FillTreeView( browse_info *info, IShellFolder * lpsf,
411                  LPITEMIDLIST  pidl, HTREEITEM hParent, IEnumIDList* lpe)
412 {
413         HTREEITEM       hPrev = 0;
414         LPITEMIDLIST    pidlTemp = 0;
415         ULONG           ulFetched;
416         HRESULT         hr;
417         HWND            hwnd = GetParent( info->hwndTreeView );
418
419         TRACE("%p %p %p %p\n",lpsf, pidl, hParent, lpe);
420
421         /* No IEnumIDList -> No children */
422         if (!lpe) return;
423         
424         SetCapture( hwnd );
425         SetCursor( LoadCursorA( 0, (LPSTR)IDC_WAIT ) );
426
427         while (S_OK == IEnumIDList_Next(lpe,1,&pidlTemp,&ulFetched))
428         {
429             ULONG ulAttrs = SFGAO_HASSUBFOLDER | SFGAO_FOLDER;
430             IEnumIDList* pEnumIL = NULL;
431             IShellFolder* pSFChild = NULL;
432             IShellFolder_GetAttributesOf(lpsf, 1, (LPCITEMIDLIST*)&pidlTemp, &ulAttrs);
433             if (ulAttrs & SFGAO_FOLDER)
434             {
435                 hr = IShellFolder_BindToObject(lpsf,pidlTemp,NULL,&IID_IShellFolder,(LPVOID*)&pSFChild);
436                 if (SUCCEEDED(hr))
437                 {
438                     DWORD flags = BrowseFlagsToSHCONTF(info->lpBrowseInfo->ulFlags);
439                     hr = IShellFolder_EnumObjects(pSFChild, hwnd, flags, &pEnumIL);
440                     if (hr == S_OK)
441                     {
442                         if ((IEnumIDList_Skip(pEnumIL, 1) != S_OK) ||
443                              FAILED(IEnumIDList_Reset(pEnumIL)))
444                         {
445                             IEnumIDList_Release(pEnumIL);
446                             pEnumIL = NULL;
447                         }
448                     }
449                     IShellFolder_Release(pSFChild);
450                 }
451             }
452
453             if (!(hPrev = InsertTreeViewItem(info, lpsf, pidlTemp, pidl, pEnumIL, hParent)))
454                 goto done;
455             SHFree(pidlTemp);  /* Finally, free the pidl that the shell gave us... */
456             pidlTemp=NULL;
457         }
458
459 done:
460         ReleaseCapture();
461         SetCursor(LoadCursorW(0, (LPWSTR)IDC_ARROW));
462     SHFree(pidlTemp);
463 }
464
465 static inline BOOL PIDLIsType(LPCITEMIDLIST pidl, PIDLTYPE type)
466 {
467     LPPIDLDATA data = _ILGetDataPointer(pidl);
468     if (!data)
469         return FALSE;
470     return (data->type == type);
471 }
472
473 static void BrsFolder_CheckValidSelection( browse_info *info, LPTV_ITEMDATA lptvid )
474 {
475     LPBROWSEINFOW lpBrowseInfo = info->lpBrowseInfo;
476     LPCITEMIDLIST pidl = lptvid->lpi;
477     BOOL bEnabled = TRUE;
478     DWORD dwAttributes;
479     HRESULT r;
480
481     if ((lpBrowseInfo->ulFlags & BIF_BROWSEFORCOMPUTER) &&
482         !PIDLIsType(pidl, PT_COMP))
483         bEnabled = FALSE;
484     if (lpBrowseInfo->ulFlags & BIF_RETURNFSANCESTORS)
485     {
486         dwAttributes = SFGAO_FILESYSANCESTOR | SFGAO_FILESYSTEM;
487         r = IShellFolder_GetAttributesOf(lptvid->lpsfParent, 1,
488                                 (LPCITEMIDLIST*)&lptvid->lpi, &dwAttributes);
489         if (FAILED(r) || !(dwAttributes & (SFGAO_FILESYSANCESTOR|SFGAO_FILESYSTEM)))
490             bEnabled = FALSE;
491     }
492
493     dwAttributes = SFGAO_FOLDER | SFGAO_FILESYSTEM;
494     r = IShellFolder_GetAttributesOf(lptvid->lpsfParent, 1,
495             (LPCITEMIDLIST*)&lptvid->lpi, &dwAttributes);
496     if (FAILED(r) ||
497             ((dwAttributes & (SFGAO_FOLDER|SFGAO_FILESYSTEM)) != (SFGAO_FOLDER|SFGAO_FILESYSTEM)))
498     {
499         if (lpBrowseInfo->ulFlags & BIF_RETURNONLYFSDIRS)
500             bEnabled = FALSE;
501         EnableWindow(GetDlgItem(info->hWnd, IDD_MAKENEWFOLDER), FALSE);
502     }
503     else
504         EnableWindow(GetDlgItem(info->hWnd, IDD_MAKENEWFOLDER), TRUE);
505
506     SendMessageW(info->hWnd, BFFM_ENABLEOK, 0, bEnabled);
507 }
508
509 static LRESULT BrsFolder_Treeview_Delete( browse_info *info, NMTREEVIEWW *pnmtv )
510 {
511     LPTV_ITEMDATA lptvid = (LPTV_ITEMDATA)pnmtv->itemOld.lParam;
512
513     TRACE("TVN_DELETEITEMA/W %p\n", lptvid);
514
515     IShellFolder_Release(lptvid->lpsfParent);
516     if (lptvid->pEnumIL)
517         IEnumIDList_Release(lptvid->pEnumIL);
518     SHFree(lptvid->lpi);
519     SHFree(lptvid->lpifq);
520     SHFree(lptvid);
521     return 0;
522 }
523
524 static LRESULT BrsFolder_Treeview_Expand( browse_info *info, NMTREEVIEWW *pnmtv )
525 {
526     IShellFolder *lpsf2 = NULL;
527     LPTV_ITEMDATA lptvid = (LPTV_ITEMDATA) pnmtv->itemNew.lParam;
528     HRESULT r;
529
530     TRACE("TVN_ITEMEXPANDINGA/W\n");
531
532     if ((pnmtv->itemNew.state & TVIS_EXPANDEDONCE))
533         return 0;
534
535     if (!_ILIsEmpty(lptvid->lpi)) {
536         r = IShellFolder_BindToObject( lptvid->lpsfParent, lptvid->lpi, 0,
537                                        &IID_IShellFolder, (void**)&lpsf2 );
538     } else {
539         lpsf2 = lptvid->lpsfParent;
540         IShellFolder_AddRef(lpsf2);
541         r = S_OK;
542     }
543
544     if (SUCCEEDED(r))
545     {
546         FillTreeView( info, lpsf2, lptvid->lpifq, pnmtv->itemNew.hItem, lptvid->pEnumIL);
547         IShellFolder_Release( lpsf2 );
548     }
549
550     /* My Computer is already sorted and trying to do a simple text
551      * sort will only mess things up */
552     if (!_ILIsMyComputer(lptvid->lpi))
553         SendMessageW( info->hwndTreeView, TVM_SORTCHILDREN,
554                       FALSE, (LPARAM)pnmtv->itemNew.hItem );
555
556     return 0;
557 }
558
559 static HRESULT BrsFolder_Treeview_Changed( browse_info *info, NMTREEVIEWW *pnmtv )
560 {
561     LPTV_ITEMDATA lptvid = (LPTV_ITEMDATA) pnmtv->itemNew.lParam;
562     WCHAR name[MAX_PATH];
563
564     ILFree(info->pidlRet);
565     info->pidlRet = ILClone(lptvid->lpifq);
566
567     if (GetName(lptvid->lpsfParent, lptvid->lpi, SHGDN_NORMAL, name))
568             SetWindowTextW( GetDlgItem(info->hWnd, IDD_FOLDERTEXT), name );
569
570     browsefolder_callback( info->lpBrowseInfo, info->hWnd, BFFM_SELCHANGED,
571                            (LPARAM)info->pidlRet );
572     BrsFolder_CheckValidSelection( info, lptvid );
573     return 0;
574 }
575
576 static LRESULT BrsFolder_Treeview_Rename(browse_info *info, NMTVDISPINFOW *pnmtv)
577 {
578     LPTV_ITEMDATA item_data;
579     WCHAR old_path[MAX_PATH], new_path[MAX_PATH], *p;
580     NMTREEVIEWW nmtv;
581     TVITEMW item;
582
583     if(!pnmtv->item.pszText)
584         return 0;
585
586     item.mask = TVIF_HANDLE|TVIF_PARAM;
587     item.hItem = (HTREEITEM)SendMessageW(info->hwndTreeView, TVM_GETNEXTITEM, TVGN_CARET, 0);
588     SendMessageW(info->hwndTreeView, TVM_GETITEMW, 0, (LPARAM)&item);
589     item_data = (LPTV_ITEMDATA)item.lParam;
590
591     SHGetPathFromIDListW(item_data->lpifq, old_path);
592     if(!(p = strrchrW(old_path, '\\')))
593         return 0;
594     p = new_path+(p-old_path+1);
595     memcpy(new_path, old_path, (p-new_path)*sizeof(WCHAR));
596     strcpyW(p, pnmtv->item.pszText);
597
598     if(!MoveFileW(old_path, new_path))
599         return 0;
600
601     SHFree(item_data->lpifq);
602     SHFree(item_data->lpi);
603     item_data->lpifq = SHSimpleIDListFromPathW(new_path);
604     IShellFolder_ParseDisplayName(item_data->lpsfParent, NULL, NULL,
605             pnmtv->item.pszText, NULL, &item_data->lpi, NULL);
606
607     item.mask = TVIF_HANDLE|TVIF_TEXT;
608     item.pszText = pnmtv->item.pszText;
609     SendMessageW(info->hwndTreeView, TVM_SETITEMW, 0, (LPARAM)&item);
610
611     nmtv.itemNew.lParam = item.lParam;
612     BrsFolder_Treeview_Changed(info, &nmtv);
613     return 0;
614 }
615
616 static LRESULT BrsFolder_OnNotify( browse_info *info, UINT CtlID, LPNMHDR lpnmh )
617 {
618     NMTREEVIEWW *pnmtv = (NMTREEVIEWW *)lpnmh;
619
620     TRACE("%p %x %p msg=%x\n", info, CtlID, lpnmh, pnmtv->hdr.code);
621
622     if (pnmtv->hdr.idFrom != IDD_TREEVIEW)
623         return 0;
624
625     switch (pnmtv->hdr.code)
626     {
627     case TVN_DELETEITEMA:
628     case TVN_DELETEITEMW:
629         return BrsFolder_Treeview_Delete( info, pnmtv );
630
631     case TVN_ITEMEXPANDINGA:
632     case TVN_ITEMEXPANDINGW:
633         return BrsFolder_Treeview_Expand( info, pnmtv );
634
635     case TVN_SELCHANGEDA:
636     case TVN_SELCHANGEDW:
637         return BrsFolder_Treeview_Changed( info, pnmtv );
638
639     case TVN_ENDLABELEDITA:
640     case TVN_ENDLABELEDITW:
641         return BrsFolder_Treeview_Rename( info, (LPNMTVDISPINFOW)pnmtv );
642
643     default:
644         WARN("unhandled (%d)\n", pnmtv->hdr.code);
645         break;
646     }
647
648     return 0;
649 }
650
651
652 static BOOL BrsFolder_OnCreate( HWND hWnd, browse_info *info )
653 {
654     LPBROWSEINFOW lpBrowseInfo = info->lpBrowseInfo;
655
656     info->hWnd = hWnd;
657     SetPropW( hWnd, szBrowseFolderInfo, info );
658
659     if (lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE)
660         FIXME("flags BIF_NEWDIALOGSTYLE partially implemented\n");
661     if (lpBrowseInfo->ulFlags & ~SUPPORTEDFLAGS)
662         FIXME("flags %x not implemented\n", lpBrowseInfo->ulFlags & ~SUPPORTEDFLAGS);
663
664     if (lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE)
665     {
666         RECT rcWnd;
667
668         info->layout = LayoutInit(hWnd, g_layout_info, LAYOUT_INFO_COUNT);
669
670         /* TODO: Windows allows shrinking the windows a bit */
671         GetWindowRect(hWnd, &rcWnd);
672         info->szMin.cx = rcWnd.right - rcWnd.left;
673         info->szMin.cy = rcWnd.bottom - rcWnd.top;
674     }
675     else
676     {
677         info->layout = NULL;
678     }
679
680     if (lpBrowseInfo->lpszTitle)
681         SetWindowTextW( GetDlgItem(hWnd, IDD_TITLE), lpBrowseInfo->lpszTitle );
682     else
683         ShowWindow( GetDlgItem(hWnd, IDD_TITLE), SW_HIDE );
684
685     if (!(lpBrowseInfo->ulFlags & BIF_STATUSTEXT)
686         || (lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE))
687         ShowWindow( GetDlgItem(hWnd, IDD_STATUS), SW_HIDE );
688
689     /* Hide "Make New Folder" Button? */
690     if ((lpBrowseInfo->ulFlags & BIF_NONEWFOLDERBUTTON)
691         || !(lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE))
692         ShowWindow( GetDlgItem(hWnd, IDD_MAKENEWFOLDER), SW_HIDE );
693
694     /* Hide the editbox? */
695     if (!(lpBrowseInfo->ulFlags & BIF_EDITBOX))
696     {
697         ShowWindow( GetDlgItem(hWnd, IDD_FOLDER), SW_HIDE );
698         ShowWindow( GetDlgItem(hWnd, IDD_FOLDERTEXT), SW_HIDE );
699     }
700
701     info->hwndTreeView = GetDlgItem( hWnd, IDD_TREEVIEW );
702     if (info->hwndTreeView)
703     {
704         InitializeTreeView( info );
705
706         /* Resize the treeview if there's not editbox */
707         if ((lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE)
708             && !(lpBrowseInfo->ulFlags & BIF_EDITBOX))
709         {
710             RECT rc;
711             GetClientRect(info->hwndTreeView, &rc);
712             SetWindowPos(info->hwndTreeView, HWND_TOP, 0, 0,
713                          rc.right, rc.bottom + 40, SWP_NOMOVE);
714         }
715     }
716     else
717         ERR("treeview control missing!\n");
718
719     browsefolder_callback( info->lpBrowseInfo, hWnd, BFFM_INITIALIZED, 0 );
720
721     return TRUE;
722 }
723
724 static HRESULT BrsFolder_Rename(browse_info *info, HTREEITEM rename)
725 {
726     SendMessageW(info->hwndTreeView, TVM_SELECTITEM, TVGN_CARET, (LPARAM)rename);
727     SendMessageW(info->hwndTreeView, TVM_EDITLABELW, 0, (LPARAM)rename);
728     return S_OK;
729 }
730
731 static HRESULT BrsFolder_NewFolder(browse_info *info)
732 {
733     DWORD flags = BrowseFlagsToSHCONTF(info->lpBrowseInfo->ulFlags);
734     IShellFolder *desktop, *cur;
735     ISFHelper *sfhelper;
736     WCHAR name[MAX_PATH];
737     HTREEITEM parent, added;
738     LPTV_ITEMDATA item_data;
739     LPITEMIDLIST new_item;
740     TVITEMW item;
741     HRESULT hr;
742     int len;
743
744     if(!info->pidlRet) {
745         ERR("Make new folder button should be disabled\n");
746         return E_FAIL;
747     }
748
749     /* Create new directory */
750     hr = SHGetDesktopFolder(&desktop);
751     if(FAILED(hr))
752         return hr;
753     hr = IShellFolder_BindToObject(desktop, info->pidlRet, 0, &IID_IShellFolder, (void**)&cur);
754     IShellFolder_Release(desktop);
755     if(FAILED(hr))
756         return hr;
757
758     hr = IShellFolder_QueryInterface(cur, &IID_ISFHelper, (void**)&sfhelper);
759     if(FAILED(hr))
760         return hr;
761
762     hr = SHGetPathFromIDListW(info->pidlRet, name);
763     if(FAILED(hr))
764         goto cleanup;
765
766     len = strlenW(name);
767     if(len<MAX_PATH)
768         name[len++] = '\\';
769     hr = ISFHelper_GetUniqueName(sfhelper, &name[len], MAX_PATH-len);
770     ISFHelper_Release(sfhelper);
771     if(FAILED(hr))
772         goto cleanup;
773
774     hr = E_FAIL;
775     if(!CreateDirectoryW(name, NULL))
776         goto cleanup;
777
778     /* Update parent of newly created directory */
779     parent = (HTREEITEM)SendMessageW(info->hwndTreeView, TVM_GETNEXTITEM, TVGN_CARET, 0);
780     if(!parent)
781         goto cleanup;
782
783     SendMessageW(info->hwndTreeView, TVM_EXPAND, TVE_EXPAND, (LPARAM)parent);
784
785     memset(&item, 0, sizeof(TVITEMW));
786     item.mask = TVIF_PARAM|TVIF_STATE;
787     item.hItem = parent;
788     SendMessageW(info->hwndTreeView, TVM_GETITEMW, 0, (LPARAM)&item);
789     item_data = (LPTV_ITEMDATA)item.lParam;
790     if(!item_data)
791         goto cleanup;
792
793     if(item_data->pEnumIL)
794         IEnumIDList_Release(item_data->pEnumIL);
795     hr = IShellFolder_EnumObjects(cur, info->hwndTreeView, flags, &item_data->pEnumIL);
796     if(FAILED(hr))
797         goto cleanup;
798
799     /* Update treeview */
800     if(!(item.state&TVIS_EXPANDEDONCE)) {
801         item.mask = TVIF_STATE;
802         item.state = TVIS_EXPANDEDONCE;
803         item.stateMask = TVIS_EXPANDEDONCE;
804         SendMessageW(info->hwndTreeView, TVM_SETITEMW, 0, (LPARAM)&item);
805     }
806
807     hr = IShellFolder_ParseDisplayName(cur, NULL, NULL, name+len, NULL, &new_item, NULL);
808     if(FAILED(hr))
809         goto cleanup;
810
811     added = InsertTreeViewItem(info, cur, new_item, item_data->lpifq, NULL, parent);
812     IShellFolder_Release(cur);
813     SHFree(new_item);
814
815     SendMessageW(info->hwndTreeView, TVM_SORTCHILDREN, FALSE, (LPARAM)parent);
816     return BrsFolder_Rename(info, added);
817
818 cleanup:
819     return hr;
820 }
821
822 static BOOL BrsFolder_OnCommand( browse_info *info, UINT id )
823 {
824     LPBROWSEINFOW lpBrowseInfo = info->lpBrowseInfo;
825
826     switch (id)
827     {
828     case IDOK:
829         if (info->pidlRet == NULL) /* A null pidl would mean a cancel */
830             info->pidlRet = _ILCreateDesktop();
831         pdump( info->pidlRet );
832         if (lpBrowseInfo->pszDisplayName)
833             SHGetPathFromIDListW( info->pidlRet, lpBrowseInfo->pszDisplayName );
834         EndDialog( info->hWnd, 1 );
835         return TRUE;
836
837     case IDCANCEL:
838         EndDialog( info->hWnd, 0 );
839         return TRUE;
840
841     case IDD_MAKENEWFOLDER:
842         BrsFolder_NewFolder(info);
843         return TRUE;
844     }
845     return FALSE;
846 }
847
848 static BOOL BrsFolder_OnSetExpanded(browse_info *info, LPVOID selection, 
849     BOOL is_str, HTREEITEM *pItem)
850 {
851     LPITEMIDLIST pidlSelection = selection;
852     LPCITEMIDLIST pidlCurrent, pidlRoot;
853     TVITEMEXW item;
854     BOOL bResult = FALSE;
855
856     memset(&item, 0, sizeof(item));
857
858     /* If 'selection' is a string, convert to a Shell ID List. */ 
859     if (is_str) {
860         IShellFolder *psfDesktop;
861         HRESULT hr;
862
863         hr = SHGetDesktopFolder(&psfDesktop);
864         if (FAILED(hr))
865             goto done;
866
867         hr = IShellFolder_ParseDisplayName(psfDesktop, NULL, NULL, 
868                      selection, NULL, &pidlSelection, NULL);
869         IShellFolder_Release(psfDesktop);
870         if (FAILED(hr)) 
871             goto done;
872     }
873
874     /* Move pidlCurrent behind the SHITEMIDs in pidlSelection, which are the root of
875      * the sub-tree currently displayed. */
876     pidlRoot = info->lpBrowseInfo->pidlRoot;
877     pidlCurrent = pidlSelection;
878     while (!_ILIsEmpty(pidlRoot) && _ILIsEqualSimple(pidlRoot, pidlCurrent)) {
879         pidlRoot = ILGetNext(pidlRoot);
880         pidlCurrent = ILGetNext(pidlCurrent);
881     }
882
883     /* The given ID List is not part of the SHBrowseForFolder's current sub-tree. */
884     if (!_ILIsEmpty(pidlRoot))
885         goto done;
886
887     /* Initialize item to point to the first child of the root folder. */
888     item.mask = TVIF_PARAM;
889     item.hItem = (HTREEITEM)SendMessageW(info->hwndTreeView, TVM_GETNEXTITEM, TVGN_ROOT, 0);
890
891     if (item.hItem)
892         item.hItem = (HTREEITEM)SendMessageW(info->hwndTreeView, TVM_GETNEXTITEM, TVGN_CHILD,
893                                              (LPARAM)item.hItem);
894
895     /* Walk the tree along the nodes corresponding to the remaining ITEMIDLIST */
896     while (item.hItem && !_ILIsEmpty(pidlCurrent)) {
897         LPTV_ITEMDATA pItemData;
898
899         SendMessageW(info->hwndTreeView, TVM_GETITEMW, 0, (LPARAM)&item);
900         pItemData = (LPTV_ITEMDATA)item.lParam;
901
902         if (_ILIsEqualSimple(pItemData->lpi, pidlCurrent)) {
903             pidlCurrent = ILGetNext(pidlCurrent);
904             if (!_ILIsEmpty(pidlCurrent)) {
905                 /* Only expand current node and move on to it's first child,
906                  * if we didn't already reach the last SHITEMID */
907                 SendMessageW(info->hwndTreeView, TVM_EXPAND, TVE_EXPAND, (LPARAM)item.hItem);
908                 item.hItem = (HTREEITEM)SendMessageW(info->hwndTreeView, TVM_GETNEXTITEM, TVGN_CHILD,
909                                              (LPARAM)item.hItem);
910             }
911         } else {
912             item.hItem = (HTREEITEM)SendMessageW(info->hwndTreeView, TVM_GETNEXTITEM, TVGN_NEXT,
913                                              (LPARAM)item.hItem);
914         }
915     }
916
917     if (_ILIsEmpty(pidlCurrent) && item.hItem) 
918         bResult = TRUE;
919
920 done:
921     if (pidlSelection && pidlSelection != selection)
922         ILFree(pidlSelection);
923
924     if (pItem) 
925         *pItem = item.hItem;
926     
927     return bResult;
928 }
929
930 static BOOL BrsFolder_OnSetSelectionW(browse_info *info, LPVOID selection, BOOL is_str) {
931     HTREEITEM hItem;
932     BOOL bResult;
933
934     if (!selection) return FALSE;
935
936     bResult = BrsFolder_OnSetExpanded(info, selection, is_str, &hItem);
937     if (bResult)
938         SendMessageW(info->hwndTreeView, TVM_SELECTITEM, TVGN_CARET, (LPARAM)hItem );
939     return bResult;
940 }
941
942 static BOOL BrsFolder_OnSetSelectionA(browse_info *info, LPVOID selection, BOOL is_str) {
943     LPWSTR selectionW = NULL;
944     BOOL result = FALSE;
945     int length;
946     
947     if (!is_str)
948         return BrsFolder_OnSetSelectionW(info, selection, is_str);
949
950     if ((length = MultiByteToWideChar(CP_ACP, 0, selection, -1, NULL, 0)) &&
951         (selectionW = HeapAlloc(GetProcessHeap(), 0, length * sizeof(WCHAR))) &&
952         MultiByteToWideChar(CP_ACP, 0, selection, -1, selectionW, length))
953     {
954         result = BrsFolder_OnSetSelectionW(info, selectionW, is_str);
955     }
956
957     HeapFree(GetProcessHeap(), 0, selectionW);
958     return result;
959 }
960
961 static BOOL BrsFolder_OnWindowPosChanging(browse_info *info, WINDOWPOS *pos)
962 {
963     if ((info->lpBrowseInfo->ulFlags & BIF_NEWDIALOGSTYLE) && !(pos->flags & SWP_NOSIZE))
964     {
965         if (pos->cx < info->szMin.cx)
966             pos->cx = info->szMin.cx;
967         if (pos->cy < info->szMin.cy)
968             pos->cy = info->szMin.cy;
969     }
970     return 0;
971 }
972
973 static INT BrsFolder_OnDestroy(browse_info *info)
974 {
975     if (info->layout)
976     {
977         SHFree(info->layout);
978         info->layout = NULL;
979     }
980
981     return 0;
982 }
983
984 /*************************************************************************
985  *             BrsFolderDlgProc32  (not an exported API function)
986  */
987 static INT_PTR CALLBACK BrsFolderDlgProc( HWND hWnd, UINT msg, WPARAM wParam,
988                                           LPARAM lParam )
989 {
990     browse_info *info;
991
992     TRACE("hwnd=%p msg=%04x 0x%08lx 0x%08lx\n", hWnd, msg, wParam, lParam );
993
994     if (msg == WM_INITDIALOG)
995         return BrsFolder_OnCreate( hWnd, (browse_info*) lParam );
996
997     info = GetPropW( hWnd, szBrowseFolderInfo );
998
999     switch (msg)
1000     {
1001     case WM_NOTIFY:
1002         return BrsFolder_OnNotify( info, (UINT)wParam, (LPNMHDR)lParam);
1003
1004     case WM_COMMAND:
1005         return BrsFolder_OnCommand( info, wParam );
1006
1007     case WM_WINDOWPOSCHANGING:
1008         return BrsFolder_OnWindowPosChanging( info, (WINDOWPOS *)lParam);
1009
1010     case WM_SIZE:
1011         if (info->layout)  /* new style dialogs */
1012             LayoutUpdate(hWnd, info->layout, g_layout_info, LAYOUT_INFO_COUNT);
1013         return 0;
1014
1015     case BFFM_SETSTATUSTEXTA:
1016         TRACE("Set status %s\n", debugstr_a((LPSTR)lParam));
1017         SetWindowTextA(GetDlgItem(hWnd, IDD_STATUS), (LPSTR)lParam);
1018         break;
1019
1020     case BFFM_SETSTATUSTEXTW:
1021         TRACE("Set status %s\n", debugstr_w((LPWSTR)lParam));
1022         SetWindowTextW(GetDlgItem(hWnd, IDD_STATUS), (LPWSTR)lParam);
1023         break;
1024
1025     case BFFM_ENABLEOK:
1026         TRACE("Enable %ld\n", lParam);
1027         EnableWindow(GetDlgItem(hWnd, 1), (lParam)?TRUE:FALSE);
1028         break;
1029
1030     case BFFM_SETOKTEXT: /* unicode only */
1031         TRACE("Set OK text %s\n", debugstr_w((LPWSTR)wParam));
1032         SetWindowTextW(GetDlgItem(hWnd, 1), (LPWSTR)wParam);
1033         break;
1034
1035     case BFFM_SETSELECTIONA:
1036         return BrsFolder_OnSetSelectionA(info, (LPVOID)lParam, (BOOL)wParam);
1037
1038     case BFFM_SETSELECTIONW:
1039         return BrsFolder_OnSetSelectionW(info, (LPVOID)lParam, (BOOL)wParam);
1040
1041     case BFFM_SETEXPANDED: /* unicode only */
1042         return BrsFolder_OnSetExpanded(info, (LPVOID)lParam, (BOOL)wParam, NULL);
1043
1044     case WM_DESTROY:
1045         return BrsFolder_OnDestroy(info);
1046     }
1047     return FALSE;
1048 }
1049
1050 static const WCHAR swBrowseTemplateName[] = {
1051     'S','H','B','R','S','F','O','R','F','O','L','D','E','R','_','M','S','G','B','O','X',0};
1052 static const WCHAR swNewBrowseTemplateName[] = {
1053     'S','H','N','E','W','B','R','S','F','O','R','F','O','L','D','E','R','_','M','S','G','B','O','X',0};
1054
1055 /*************************************************************************
1056  * SHBrowseForFolderA [SHELL32.@]
1057  * SHBrowseForFolder  [SHELL32.@]
1058  */
1059 LPITEMIDLIST WINAPI SHBrowseForFolderA (LPBROWSEINFOA lpbi)
1060 {
1061     BROWSEINFOW bi;
1062     LPITEMIDLIST lpid;
1063     INT len;
1064     LPWSTR title;
1065
1066     TRACE("%p\n", lpbi);
1067
1068     bi.hwndOwner = lpbi->hwndOwner;
1069     bi.pidlRoot = lpbi->pidlRoot;
1070     if (lpbi->pszDisplayName)
1071         bi.pszDisplayName = HeapAlloc( GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR) );
1072     else
1073         bi.pszDisplayName = NULL;
1074
1075     if (lpbi->lpszTitle)
1076     {
1077         len = MultiByteToWideChar( CP_ACP, 0, lpbi->lpszTitle, -1, NULL, 0 );
1078         title = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
1079         MultiByteToWideChar( CP_ACP, 0, lpbi->lpszTitle, -1, title, len );
1080     }
1081     else
1082         title = NULL;
1083
1084     bi.lpszTitle = title;
1085     bi.ulFlags = lpbi->ulFlags;
1086     bi.lpfn = lpbi->lpfn;
1087     bi.lParam = lpbi->lParam;
1088     bi.iImage = lpbi->iImage;
1089     lpid = SHBrowseForFolderW( &bi );
1090     if (bi.pszDisplayName)
1091     {
1092         WideCharToMultiByte( CP_ACP, 0, bi.pszDisplayName, -1,
1093                              lpbi->pszDisplayName, MAX_PATH, 0, NULL);
1094         HeapFree( GetProcessHeap(), 0, bi.pszDisplayName );
1095     }
1096     HeapFree(GetProcessHeap(), 0, title);
1097     lpbi->iImage = bi.iImage;
1098     return lpid;
1099 }
1100
1101
1102 /*************************************************************************
1103  * SHBrowseForFolderW [SHELL32.@]
1104  *
1105  * NOTES
1106  *  crashes when passed a null pointer
1107  */
1108 LPITEMIDLIST WINAPI SHBrowseForFolderW (LPBROWSEINFOW lpbi)
1109 {
1110     browse_info info;
1111     DWORD r;
1112     HRESULT hr;
1113     const WCHAR * templateName;
1114
1115     info.hWnd = 0;
1116     info.pidlRet = NULL;
1117     info.lpBrowseInfo = lpbi;
1118     info.hwndTreeView = NULL;
1119
1120     hr = OleInitialize(NULL);
1121
1122     if (lpbi->ulFlags & BIF_NEWDIALOGSTYLE)
1123         templateName = swNewBrowseTemplateName;
1124     else
1125         templateName = swBrowseTemplateName;
1126     r = DialogBoxParamW( shell32_hInstance, templateName, lpbi->hwndOwner,
1127                          BrsFolderDlgProc, (LPARAM)&info );
1128     if (SUCCEEDED(hr)) 
1129         OleUninitialize();
1130     if (!r)
1131     {
1132         ILFree(info.pidlRet);
1133         return NULL;
1134     }
1135
1136     return info.pidlRet;
1137 }