* Sync with recent trunk (r52637).
[reactos.git] / base / applications / regedit / treeview.c
1 /*
2 * Regedit treeview
3 *
4 * Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include <regedit.h>
22
23 /* Global variables and constants */
24 /* Image_Open, Image_Closed, and Image_Root - integer variables for indexes of the images. */
25 /* CX_ICON and CY_ICON - width and height of an icon. */
26 /* NUM_ICON - number of icons to add to the image list. */
27 static int Image_Open = 0;
28 static int Image_Closed = 0;
29 static int Image_Root = 0;
30
31 static LPTSTR pathBuffer;
32
33 #define NUM_ICONS 3
34
35 static BOOL get_item_path(HWND hwndTV, HTREEITEM hItem, HKEY* phKey, LPTSTR* pKeyPath, int* pPathLen, int* pMaxLen)
36 {
37 TVITEM item;
38 size_t maxLen, len;
39 LPTSTR newStr;
40
41 item.mask = TVIF_PARAM;
42 item.hItem = hItem;
43 if (!TreeView_GetItem(hwndTV, &item)) return FALSE;
44
45 if (item.lParam)
46 {
47 /* found root key with valid key value */
48 *phKey = (HKEY)item.lParam;
49 return TRUE;
50 }
51
52 if(!get_item_path(hwndTV, TreeView_GetParent(hwndTV, hItem), phKey, pKeyPath, pPathLen, pMaxLen)) return FALSE;
53 if (*pPathLen)
54 {
55 (*pKeyPath)[*pPathLen] = _T('\\');
56 ++(*pPathLen);
57 }
58
59 do
60 {
61 item.mask = TVIF_TEXT;
62 item.hItem = hItem;
63 item.pszText = *pKeyPath + *pPathLen;
64 maxLen = *pMaxLen - *pPathLen;
65 item.cchTextMax = (int) maxLen;
66 if (!TreeView_GetItem(hwndTV, &item)) return FALSE;
67 len = _tcslen(item.pszText);
68 if (len < maxLen - 1)
69 {
70 *pPathLen += (int) len;
71 break;
72 }
73 newStr = HeapReAlloc(GetProcessHeap(), 0, *pKeyPath, *pMaxLen * 2);
74 if (!newStr) return FALSE;
75 *pKeyPath = newStr;
76 *pMaxLen *= 2;
77 }
78 while(TRUE);
79
80 return TRUE;
81 }
82
83 LPCTSTR GetItemPath(HWND hwndTV, HTREEITEM hItem, HKEY* phRootKey)
84 {
85 int pathLen = 0, maxLen;
86
87 *phRootKey = NULL;
88 if (!pathBuffer) pathBuffer = HeapAlloc(GetProcessHeap(), 0, 1024);
89 if (!pathBuffer) return NULL;
90 *pathBuffer = 0;
91 maxLen = (int) HeapSize(GetProcessHeap(), 0, pathBuffer);
92 if (maxLen == -1) return NULL;
93 if (!hItem) hItem = TreeView_GetSelection(hwndTV);
94 if (!hItem) return NULL;
95 if (!get_item_path(hwndTV, hItem, phRootKey, &pathBuffer, &pathLen, &maxLen))
96 {
97 return NULL;
98 }
99 return pathBuffer;
100 }
101
102 BOOL DeleteNode(HWND hwndTV, HTREEITEM hItem)
103 {
104 if (!hItem) hItem = TreeView_GetSelection(hwndTV);
105 if (!hItem) return FALSE;
106 return TreeView_DeleteItem(hwndTV, hItem);
107 }
108
109 /* Add an entry to the tree. Only give hKey for root nodes (HKEY_ constants) */
110 static HTREEITEM AddEntryToTree(HWND hwndTV, HTREEITEM hParent, LPTSTR label, HKEY hKey, DWORD dwChildren)
111 {
112 TVITEM tvi;
113 TVINSERTSTRUCT tvins;
114
115 if (hKey)
116 {
117 if (RegQueryInfoKey(hKey, 0, 0, 0, &dwChildren, 0, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS)
118 {
119 dwChildren = 0;
120 }
121 }
122
123 tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
124 tvi.pszText = label;
125 tvi.cchTextMax = lstrlen(tvi.pszText);
126 tvi.iImage = Image_Closed;
127 tvi.iSelectedImage = Image_Open;
128 tvi.cChildren = dwChildren;
129 tvi.lParam = (LPARAM)hKey;
130 tvins.item = tvi;
131 tvins.hInsertAfter = (HTREEITEM)(hKey ? TVI_LAST : TVI_FIRST);
132 tvins.hParent = hParent;
133 return TreeView_InsertItem(hwndTV, &tvins);
134 }
135
136 BOOL RefreshTreeItem(HWND hwndTV, HTREEITEM hItem)
137 {
138 HKEY hRoot, hKey, hSubKey;
139 HTREEITEM childItem;
140 LPCTSTR KeyPath;
141 DWORD dwCount, dwIndex, dwMaxSubKeyLen;
142 LPTSTR Name = NULL;
143 TVITEM tvItem;
144 LPTSTR pszNodes = NULL;
145 BOOL bSuccess = FALSE;
146 LPTSTR s;
147 BOOL bAddedAny;
148
149 KeyPath = GetItemPath(hwndTV, hItem, &hRoot);
150
151 if (*KeyPath)
152 {
153 if (RegOpenKeyEx(hRoot, KeyPath, 0, KEY_READ, &hKey) != ERROR_SUCCESS)
154 {
155 goto done;
156 }
157 }
158 else
159 {
160 hKey = hRoot;
161 }
162
163 if (RegQueryInfoKey(hKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS)
164 {
165 goto done;
166 }
167
168 /* Set the number of children again */
169 tvItem.mask = TVIF_CHILDREN;
170 tvItem.hItem = hItem;
171 tvItem.cChildren = dwCount;
172 if (!TreeView_SetItem(hwndTV, &tvItem))
173 {
174 goto done;
175 }
176
177 /* We don't have to bother with the rest if it's not expanded. */
178 if (TreeView_GetItemState(hwndTV, hItem, TVIS_EXPANDED) == 0)
179 {
180 RegCloseKey(hKey);
181 bSuccess = TRUE;
182 goto done;
183 }
184
185 dwMaxSubKeyLen++; /* account for the \0 terminator */
186 if (!(Name = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(TCHAR))))
187 {
188 goto done;
189 }
190 tvItem.cchTextMax = dwMaxSubKeyLen;
191 /*if (!(tvItem.pszText = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(TCHAR)))) {
192 goto done;
193 }*/
194
195 /* Get all of the tree node siblings in one contiguous block of memory */
196 {
197 DWORD dwPhysicalSize = 0;
198 DWORD dwActualSize = 0;
199 DWORD dwNewPhysicalSize;
200 LPTSTR pszNewNodes;
201 DWORD dwStep = 10000;
202
203 for (childItem = TreeView_GetChild(hwndTV, hItem); childItem;
204 childItem = TreeView_GetNextSibling(hwndTV, childItem))
205 {
206
207 if (dwActualSize + dwMaxSubKeyLen + 1 > dwPhysicalSize)
208 {
209 dwNewPhysicalSize = dwActualSize + dwMaxSubKeyLen + 1 + dwStep;
210
211 if (pszNodes)
212 pszNewNodes = (LPTSTR) HeapReAlloc(GetProcessHeap(), 0, pszNodes, dwNewPhysicalSize * sizeof(TCHAR));
213 else
214 pszNewNodes = (LPTSTR) HeapAlloc(GetProcessHeap(), 0, dwNewPhysicalSize * sizeof(TCHAR));
215 if (!pszNewNodes)
216 goto done;
217
218 dwPhysicalSize = dwNewPhysicalSize;
219 pszNodes = pszNewNodes;
220 }
221
222 tvItem.mask = TVIF_TEXT;
223 tvItem.hItem = childItem;
224 tvItem.pszText = &pszNodes[dwActualSize];
225 tvItem.cchTextMax = dwPhysicalSize - dwActualSize;
226 if (!TreeView_GetItem(hwndTV, &tvItem))
227 goto done;
228
229 dwActualSize += (DWORD) _tcslen(&pszNodes[dwActualSize]) + 1;
230 }
231
232 if (pszNodes)
233 pszNodes[dwActualSize] = '\0';
234 }
235
236 /* Now go through all the children in the tree, and check if any have to be removed. */
237 childItem = TreeView_GetChild(hwndTV, hItem);
238 while (childItem)
239 {
240 HTREEITEM nextItem = TreeView_GetNextSibling(hwndTV, childItem);
241 if (RefreshTreeItem(hwndTV, childItem) == FALSE)
242 {
243 (void)TreeView_DeleteItem(hwndTV, childItem);
244 }
245 childItem = nextItem;
246 }
247
248 /* Now go through all the children in the registry, and check if any have to be added. */
249 bAddedAny = FALSE;
250 for (dwIndex = 0; dwIndex < dwCount; dwIndex++)
251 {
252 DWORD cName = dwMaxSubKeyLen, dwSubCount;
253 BOOL found;
254
255 found = FALSE;
256 if (RegEnumKeyEx(hKey, dwIndex, Name, &cName, 0, 0, 0, NULL) != ERROR_SUCCESS)
257 {
258 continue;
259 }
260
261 /* Check if the node is already in there. */
262 if (pszNodes)
263 {
264 for (s = pszNodes; *s; s += _tcslen(s) + 1)
265 {
266 if (!_tcscmp(s, Name))
267 {
268 found = TRUE;
269 break;
270 }
271 }
272 }
273
274 if (found == FALSE)
275 {
276 /* Find the number of children of the node. */
277 dwSubCount = 0;
278 if (RegOpenKeyEx(hKey, Name, 0, KEY_QUERY_VALUE, &hSubKey) == ERROR_SUCCESS)
279 {
280 if (RegQueryInfoKey(hSubKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS)
281 {
282 dwSubCount = 0;
283 }
284 RegCloseKey(hSubKey);
285 }
286
287 AddEntryToTree(hwndTV, hItem, Name, NULL, dwSubCount);
288 bAddedAny = TRUE;
289 }
290 }
291 RegCloseKey(hKey);
292
293 if (bAddedAny)
294 SendMessage(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM) hItem);
295
296 bSuccess = TRUE;
297
298 done:
299 if (pszNodes)
300 HeapFree(GetProcessHeap(), 0, pszNodes);
301 if (Name)
302 HeapFree(GetProcessHeap(), 0, Name);
303 return bSuccess;
304 }
305
306 BOOL RefreshTreeView(HWND hwndTV)
307 {
308 HTREEITEM hItem;
309 HTREEITEM hSelectedItem;
310 HCURSOR hcursorOld;
311
312 hSelectedItem = TreeView_GetSelection(hwndTV);
313 hcursorOld = SetCursor(LoadCursor(NULL, IDC_WAIT));
314 SendMessage(hwndTV, WM_SETREDRAW, FALSE, 0);
315
316 hItem = TreeView_GetChild(hwndTV, TreeView_GetRoot(hwndTV));
317 while (hItem)
318 {
319 RefreshTreeItem(hwndTV, hItem);
320 hItem = TreeView_GetNextSibling(hwndTV, hItem);
321 }
322
323 SendMessage(hwndTV, WM_SETREDRAW, TRUE, 0);
324 SetCursor(hcursorOld);
325
326 /* We reselect the currently selected node, this will prompt a refresh of the listview. */
327 (void)TreeView_SelectItem(hwndTV, hSelectedItem);
328 return TRUE;
329 }
330
331 HTREEITEM InsertNode(HWND hwndTV, HTREEITEM hItem, LPTSTR name)
332 {
333 TCHAR buf[MAX_NEW_KEY_LEN];
334 HTREEITEM hNewItem = 0;
335 TVITEMEX item;
336
337 /* Default to the current selection */
338 if (!hItem)
339 {
340 hItem = TreeView_GetSelection(hwndTV);
341 if (!hItem)
342 return FALSE;
343 }
344
345 memset(&item, 0, sizeof(item));
346 item.hItem = hItem;
347 item.mask = TVIF_CHILDREN | TVIF_HANDLE | TVIF_STATE;
348 if (!TreeView_GetItem(hwndTV, &item))
349 return FALSE;
350
351 if ((item.state & TVIS_EXPANDEDONCE) && (item.cChildren > 0))
352 {
353 hNewItem = AddEntryToTree(hwndTV, hItem, name, 0, 0);
354 SendMessage(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM) hItem);
355 }
356 else
357 {
358 item.mask = TVIF_CHILDREN | TVIF_HANDLE;
359 item.hItem = hItem;
360 item.cChildren = 1;
361 if (!TreeView_SetItem(hwndTV, &item))
362 return FALSE;
363 }
364
365 (void)TreeView_Expand(hwndTV, hItem, TVE_EXPAND);
366 if (!hNewItem)
367 {
368 for(hNewItem = TreeView_GetChild(hwndTV, hItem); hNewItem; hNewItem = TreeView_GetNextSibling(hwndTV, hNewItem))
369 {
370 item.mask = TVIF_HANDLE | TVIF_TEXT;
371 item.hItem = hNewItem;
372 item.pszText = buf;
373 item.cchTextMax = COUNT_OF(buf);
374 if (!TreeView_GetItem(hwndTV, &item)) continue;
375 if (lstrcmp(name, item.pszText) == 0) break;
376 }
377 }
378 if (hNewItem) (void)TreeView_SelectItem(hwndTV, hNewItem);
379
380 return hNewItem;
381 }
382
383 HWND StartKeyRename(HWND hwndTV)
384 {
385 HTREEITEM hItem;
386
387 if(!(hItem = TreeView_GetSelection(hwndTV))) return 0;
388 return TreeView_EditLabel(hwndTV, hItem);
389 }
390
391 static BOOL InitTreeViewItems(HWND hwndTV, LPTSTR pHostName)
392 {
393 TVITEM tvi;
394 TVINSERTSTRUCT tvins;
395 HTREEITEM hRoot;
396
397 tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
398 /* Set the text of the item. */
399 tvi.pszText = pHostName;
400 tvi.cchTextMax = lstrlen(tvi.pszText);
401 /* Assume the item is not a parent item, so give it an image. */
402 tvi.iImage = Image_Root;
403 tvi.iSelectedImage = Image_Root;
404 tvi.cChildren = 5;
405 /* Save the heading level in the item's application-defined data area. */
406 tvi.lParam = (LPARAM)NULL;
407 tvins.item = tvi;
408 tvins.hInsertAfter = (HTREEITEM)TVI_FIRST;
409 tvins.hParent = TVI_ROOT;
410 /* Add the item to the tree view control. */
411 if (!(hRoot = TreeView_InsertItem(hwndTV, &tvins))) return FALSE;
412
413 if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_CLASSES_ROOT"), HKEY_CLASSES_ROOT, 1)) return FALSE;
414 if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_CURRENT_USER"), HKEY_CURRENT_USER, 1)) return FALSE;
415 if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_LOCAL_MACHINE"), HKEY_LOCAL_MACHINE, 1)) return FALSE;
416 if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_USERS"), HKEY_USERS, 1)) return FALSE;
417 if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_CURRENT_CONFIG"), HKEY_CURRENT_CONFIG, 1)) return FALSE;
418
419 if (GetVersion() & 0x80000000)
420 {
421 /* Win9x specific key */
422 if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_DYN_DATA"), HKEY_DYN_DATA, 1)) return FALSE;
423 }
424
425 /* expand and select host name */
426 (void)TreeView_Expand(hwndTV, hRoot, TVE_EXPAND);
427 (void)TreeView_Select(hwndTV, hRoot, TVGN_CARET);
428 return TRUE;
429 }
430
431
432 /*
433 * InitTreeViewImageLists - creates an image list, adds three bitmaps
434 * to it, and associates the image list with a tree view control.
435 * Returns TRUE if successful, or FALSE otherwise.
436 * hwndTV - handle to the tree view control.
437 */
438 static BOOL InitTreeViewImageLists(HWND hwndTV)
439 {
440 HIMAGELIST himl; /* handle to image list */
441 HICON hico; /* handle to icon */
442
443 /* Create the image list. */
444 if ((himl = ImageList_Create(GetSystemMetrics(SM_CXSMICON),
445 GetSystemMetrics(SM_CYSMICON),
446 ILC_MASK | ILC_COLOR32,
447 0,
448 NUM_ICONS)) == NULL)
449 {
450 return FALSE;
451 }
452
453 /* Add the open file, closed file, and document bitmaps. */
454 hico = LoadImage(hInst,
455 MAKEINTRESOURCE(IDI_OPEN_FILE),
456 IMAGE_ICON,
457 GetSystemMetrics(SM_CXSMICON),
458 GetSystemMetrics(SM_CYSMICON),
459 0);
460 if (hico)
461 {
462 Image_Open = ImageList_AddIcon(himl, hico);
463 DestroyIcon(hico);
464 }
465
466 hico = LoadImage(hInst,
467 MAKEINTRESOURCE(IDI_CLOSED_FILE),
468 IMAGE_ICON,
469 GetSystemMetrics(SM_CXSMICON),
470 GetSystemMetrics(SM_CYSMICON),
471 0);
472 if (hico)
473 {
474 Image_Closed = ImageList_AddIcon(himl, hico);
475 DestroyIcon(hico);
476 }
477
478 hico = LoadImage(hInst,
479 MAKEINTRESOURCE(IDI_ROOT),
480 IMAGE_ICON,
481 GetSystemMetrics(SM_CXSMICON),
482 GetSystemMetrics(SM_CYSMICON),
483 0);
484 if (hico)
485 {
486 Image_Root = ImageList_AddIcon(himl, hico);
487 DestroyIcon(hico);
488 }
489
490 /* Fail if not all of the images were added. */
491 if (ImageList_GetImageCount(himl) < NUM_ICONS)
492 {
493 ImageList_Destroy(himl);
494 return FALSE;
495 }
496
497 /* Associate the image list with the tree view control. */
498 (void)TreeView_SetImageList(hwndTV, himl, TVSIL_NORMAL);
499
500 return TRUE;
501 }
502
503 BOOL OnTreeExpanding(HWND hwndTV, NMTREEVIEW* pnmtv)
504 {
505 DWORD dwCount, dwIndex, dwMaxSubKeyLen;
506 HKEY hRoot, hNewKey, hKey;
507 LPCTSTR keyPath;
508 LPTSTR Name;
509 LONG errCode;
510 HCURSOR hcursorOld;
511
512 static int expanding;
513 if (expanding) return FALSE;
514 if (pnmtv->itemNew.state & TVIS_EXPANDEDONCE )
515 {
516 return TRUE;
517 }
518 expanding = TRUE;
519 hcursorOld = SetCursor(LoadCursor(NULL, IDC_WAIT));
520 SendMessage(hwndTV, WM_SETREDRAW, FALSE, 0);
521
522 keyPath = GetItemPath(hwndTV, pnmtv->itemNew.hItem, &hRoot);
523 if (!keyPath) goto done;
524
525 if (*keyPath)
526 {
527 errCode = RegOpenKeyEx(hRoot, keyPath, 0, KEY_READ, &hNewKey);
528 if (errCode != ERROR_SUCCESS) goto done;
529 }
530 else
531 {
532 hNewKey = hRoot;
533 }
534
535 errCode = RegQueryInfoKey(hNewKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0);
536 if (errCode != ERROR_SUCCESS) goto done;
537 dwMaxSubKeyLen++; /* account for the \0 terminator */
538 Name = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(TCHAR));
539 if (!Name) goto done;
540
541 for (dwIndex = 0; dwIndex < dwCount; dwIndex++)
542 {
543 DWORD cName = dwMaxSubKeyLen, dwSubCount;
544
545 errCode = RegEnumKeyEx(hNewKey, dwIndex, Name, &cName, 0, 0, 0, 0);
546 if (errCode != ERROR_SUCCESS) continue;
547 errCode = RegOpenKeyEx(hNewKey, Name, 0, KEY_QUERY_VALUE, &hKey);
548 if (errCode == ERROR_SUCCESS)
549 {
550 errCode = RegQueryInfoKey(hKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0);
551 RegCloseKey(hKey);
552 }
553 if (errCode != ERROR_SUCCESS) dwSubCount = 0;
554 AddEntryToTree(hwndTV, pnmtv->itemNew.hItem, Name, NULL, dwSubCount);
555 }
556
557 SendMessage(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM)pnmtv->itemNew.hItem);
558
559 RegCloseKey(hNewKey);
560 HeapFree(GetProcessHeap(), 0, Name);
561
562 done:
563 SendMessage(hwndTV, WM_SETREDRAW, TRUE, 0);
564 SetCursor(hcursorOld);
565 expanding = FALSE;
566
567 return TRUE;
568 }
569
570
571 BOOL CreateNewKey(HWND hwndTV, HTREEITEM hItem)
572 {
573 TCHAR szNewKeyFormat[128];
574 TCHAR szNewKey[128];
575 LPCTSTR pszKeyPath;
576 int iIndex = 1;
577 LONG nResult;
578 HKEY hRootKey = NULL, hKey = NULL, hNewKey = NULL;
579 BOOL bSuccess = FALSE;
580 DWORD dwDisposition;
581 HTREEITEM hNewItem;
582
583 pszKeyPath = GetItemPath(hwndTV, hItem, &hRootKey);
584 if (pszKeyPath[0] == TEXT('\0'))
585 hKey = hRootKey;
586 else if (RegOpenKey(hRootKey, pszKeyPath, &hKey) != ERROR_SUCCESS)
587 goto done;
588
589 if (LoadString(hInst, IDS_NEW_KEY, szNewKeyFormat, sizeof(szNewKeyFormat) / sizeof(szNewKeyFormat[0])) <= 0)
590 goto done;
591
592 /* Need to create a new key with a unique name */
593 do
594 {
595 wsprintf(szNewKey, szNewKeyFormat, iIndex++);
596 nResult = RegCreateKeyEx(hKey, szNewKey, 0, NULL, 0, KEY_WRITE, NULL, &hNewKey, &dwDisposition);
597 if (hNewKey && dwDisposition == REG_OPENED_EXISTING_KEY)
598 {
599 RegCloseKey(hNewKey);
600 hNewKey = NULL;
601 }
602 else if (!hNewKey)
603 {
604 TCHAR sz[256];
605 wsprintf(sz, TEXT("Cannot create new key!\n\nError Code: %d"), nResult);
606 MessageBox(hFrameWnd, sz, NULL, MB_ICONERROR);
607 goto done;
608 }
609 }
610 while(!hNewKey);
611
612 /* Insert the new key */
613 hNewItem = InsertNode(hwndTV, hItem, szNewKey);
614 if (!hNewItem)
615 goto done;
616
617 /* The new key's name is probably not appropriate yet */
618 (void)TreeView_EditLabel(hwndTV, hNewItem);
619
620 bSuccess = TRUE;
621
622 done:
623 if (hKey != hRootKey && hKey)
624 RegCloseKey(hKey);
625 if (hNewKey)
626 RegCloseKey(hNewKey);
627 return bSuccess;
628 }
629
630
631 /*
632 * CreateTreeView - creates a tree view control.
633 * Returns the handle to the new control if successful, or NULL otherwise.
634 * hwndParent - handle to the control's parent window.
635 */
636 HWND CreateTreeView(HWND hwndParent, LPTSTR pHostName, HMENU id)
637 {
638 RECT rcClient;
639 HWND hwndTV;
640
641 /* Get the dimensions of the parent window's client area, and create the tree view control. */
642 GetClientRect(hwndParent, &rcClient);
643 hwndTV = CreateWindowEx(WS_EX_CLIENTEDGE, WC_TREEVIEW, NULL,
644 WS_VISIBLE | WS_CHILD | WS_TABSTOP | TVS_HASLINES | TVS_HASBUTTONS | TVS_LINESATROOT | TVS_EDITLABELS,
645 0, 0, rcClient.right, rcClient.bottom,
646 hwndParent, id, hInst, NULL);
647 /* Initialize the image list, and add items to the control. */
648 if (!InitTreeViewImageLists(hwndTV) || !InitTreeViewItems(hwndTV, pHostName))
649 {
650 DestroyWindow(hwndTV);
651 return NULL;
652 }
653 return hwndTV;
654 }
655
656 void DestroyTreeView()
657 {
658 if (pathBuffer)
659 HeapFree(GetProcessHeap(), 0, pathBuffer);
660 }
661
662 BOOL SelectNode(HWND hwndTV, LPCTSTR keyPath)
663 {
664 HTREEITEM hRoot, hItem;
665 HTREEITEM hChildItem;
666 TCHAR szPathPart[128];
667 TCHAR szBuffer[128];
668 LPCTSTR s;
669 TVITEM tvi;
670
671 /* Total no-good hack */
672 if (!_tcsnicmp(keyPath, _T("My Computer\\"), 12))
673 keyPath += 12;
674
675 hRoot = TreeView_GetRoot(hwndTV);
676 hItem = hRoot;
677
678 while(keyPath[0])
679 {
680 s = _tcschr(keyPath, TEXT('\\'));
681 lstrcpyn(szPathPart, keyPath, s ? s - keyPath + 1 : _tcslen(keyPath) + 1);
682
683 /* Special case for root to expand root key abbreviations */
684 if (hItem == hRoot)
685 {
686 if (!_tcsicmp(szPathPart, TEXT("HKCR")))
687 _tcscpy(szPathPart, TEXT("HKEY_CLASSES_ROOT"));
688 else if (!_tcsicmp(szPathPart, TEXT("HKCU")))
689 _tcscpy(szPathPart, TEXT("HKEY_CURRENT_USER"));
690 else if (!_tcsicmp(szPathPart, TEXT("HKLM")))
691 _tcscpy(szPathPart, TEXT("HKEY_LOCAL_MACHINE"));
692 else if (!_tcsicmp(szPathPart, TEXT("HKU")))
693 _tcscpy(szPathPart, TEXT("HKEY_USERS"));
694 else if (!_tcsicmp(szPathPart, TEXT("HKCC")))
695 _tcscpy(szPathPart, TEXT("HKEY_CURRENT_CONFIG"));
696 else if (!_tcsicmp(szPathPart, TEXT("HKDD")))
697 _tcscpy(szPathPart, TEXT("HKEY_DYN_DATA"));
698 }
699
700 for (hChildItem = TreeView_GetChild(hwndTV, hItem); hChildItem;
701 hChildItem = TreeView_GetNextSibling(hwndTV, hChildItem))
702 {
703 memset(&tvi, 0, sizeof(tvi));
704 tvi.hItem = hChildItem;
705 tvi.mask = TVIF_TEXT | TVIF_CHILDREN;
706 tvi.pszText = szBuffer;
707 tvi.cchTextMax = sizeof(szBuffer) / sizeof(szBuffer[0]);
708
709 (void)TreeView_GetItem(hwndTV, &tvi);
710
711 if (!_tcsicmp(szBuffer, szPathPart))
712 break;
713 }
714
715 if (!hChildItem)
716 return FALSE;
717
718 if (tvi.cChildren > 0)
719 {
720 if (!TreeView_Expand(hwndTV, hChildItem, TVE_EXPAND))
721 return FALSE;
722 }
723
724 keyPath = s ? s + 1 : _T("");
725 hItem = hChildItem;
726 }
727
728 (void)TreeView_SelectItem(hwndTV, hItem);
729 (void)TreeView_EnsureVisible(hwndTV, hItem);
730
731 return TRUE;
732 }
733
734