reactos/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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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 int Image_Open;
  28 int Image_Closed;
  29 int Image_Root;
  30
  31 static LPTSTR pathBuffer;
  32
  33 #define CX_ICON    16
  34 #define CY_ICON    16
  35 #define NUM_ICONS    3
  36
  37 static BOOL get_item_path(HWND hwndTV, HTREEITEM hItem, HKEY* phKey, LPTSTR* pKeyPath, int* pPathLen, int* pMaxLen)
  38 {
  39     TVITEM item;
  40     size_t maxLen, len;
  41     LPTSTR newStr;
  42
  43     item.mask = TVIF_PARAM;
  44     item.hItem = hItem;
  45     if (!TreeView_GetItem(hwndTV, &item)) return FALSE;
  46
  47     if (item.lParam) {
  48         /* found root key with valid key value */
  49         *phKey = (HKEY)item.lParam;
  50         return TRUE;
  51     }
  52
  53     if(!get_item_path(hwndTV, TreeView_GetParent(hwndTV, hItem), phKey, pKeyPath, pPathLen, pMaxLen)) return FALSE;
  54     if (*pPathLen) {
  55         (*pKeyPath)[*pPathLen] = _T('\\');
  56         ++(*pPathLen);
  57     }
  58
  59     do {
  60         item.mask = TVIF_TEXT;
  61         item.hItem = hItem;
  62         item.pszText = *pKeyPath + *pPathLen;
  63         maxLen = *pMaxLen - *pPathLen;
  64         item.cchTextMax = (int) maxLen;
  65         if (!TreeView_GetItem(hwndTV, &item)) return FALSE;
  66         len = _tcslen(item.pszText);
  67         if (len < maxLen - 1) {
  68             *pPathLen += (int) len;
  69             break;
  70         }
  71         newStr = HeapReAlloc(GetProcessHeap(), 0, *pKeyPath, *pMaxLen * 2);
  72         if (!newStr) return FALSE;
  73         *pKeyPath = newStr;
  74         *pMaxLen *= 2;
  75     } while(TRUE);
  76
  77     return TRUE;
  78 }
  79
  80 LPCTSTR GetItemPath(HWND hwndTV, HTREEITEM hItem, HKEY* phRootKey)
  81 {
  82     int pathLen = 0, maxLen;
  83
  84     *phRootKey = NULL;
  85     if (!pathBuffer) pathBuffer = HeapAlloc(GetProcessHeap(), 0, 1024);
  86     if (!pathBuffer) return NULL;
  87     *pathBuffer = 0;
  88     maxLen = (int) HeapSize(GetProcessHeap(), 0, pathBuffer);
  89     if (maxLen == -1) return NULL;
  90     if (!hItem) hItem = TreeView_GetSelection(hwndTV);
  91     if (!hItem) return NULL;
  92     if (!get_item_path(hwndTV, hItem, phRootKey, &pathBuffer, &pathLen, &maxLen)) {
  93                 return NULL;
  94         }
  95     return pathBuffer;
  96 }
  97
  98 BOOL DeleteNode(HWND hwndTV, HTREEITEM hItem)
  99 {
 100     if (!hItem) hItem = TreeView_GetSelection(hwndTV);
 101     if (!hItem) return FALSE;
 102     return TreeView_DeleteItem(hwndTV, hItem);
 103 }
 104
 105 /* Add an entry to the tree. Only give hKey for root nodes (HKEY_ constants) */
 106 static HTREEITEM AddEntryToTree(HWND hwndTV, HTREEITEM hParent, LPTSTR label, HKEY hKey, DWORD dwChildren)
 107 {
 108     TVITEM tvi;
 109     TVINSERTSTRUCT tvins;
 110
 111     if (hKey) {
 112         if (RegQueryInfoKey(hKey, 0, 0, 0, &dwChildren, 0, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS) {
 113             dwChildren = 0;
 114         }
 115     }
 116
 117     tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
 118     tvi.pszText = label;
 119     tvi.cchTextMax = lstrlen(tvi.pszText);
 120     tvi.iImage = Image_Closed;
 121     tvi.iSelectedImage = Image_Open;
 122     tvi.cChildren = dwChildren;
 123     tvi.lParam = (LPARAM)hKey;
 124     tvins.item = tvi;
 125     tvins.hInsertAfter = (HTREEITEM)(hKey ? TVI_LAST : TVI_FIRST);
 126     tvins.hParent = hParent;
 127     return TreeView_InsertItem(hwndTV, &tvins);
 128 }
 129
 130 BOOL RefreshTreeItem(HWND hwndTV, HTREEITEM hItem)
 131 {
 132     HKEY hRoot, hKey, hSubKey;
 133     HTREEITEM childItem;
 134     LPCTSTR KeyPath;
 135     DWORD dwCount, dwIndex, dwMaxSubKeyLen;
 136     LPTSTR Name = NULL;
 137     TVITEM tvItem;
 138     LPTSTR pszNodes = NULL;
 139     BOOL bSuccess = FALSE;
 140     LPTSTR s;
 141     BOOL bAddedAny;
 142
 143     KeyPath = GetItemPath(hwndTV, hItem, &hRoot);
 144
 145     if (*KeyPath) {
 146         if (RegOpenKeyEx(hRoot, KeyPath, 0, KEY_READ, &hKey) != ERROR_SUCCESS) {
 147             goto done;
 148         }
 149     } else {
 150         hKey = hRoot;
 151     }
 152
 153     if (RegQueryInfoKey(hKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS) {
 154         goto done;
 155     }
 156
 157     /* Set the number of children again */
 158     tvItem.mask = TVIF_CHILDREN;
 159     tvItem.hItem = hItem;
 160     tvItem.cChildren = dwCount;
 161     if (!TreeView_SetItem(hwndTV, &tvItem)) {
 162         goto done;
 163     }
 164
 165     /* We don't have to bother with the rest if it's not expanded. */
 166     if (TreeView_GetItemState(hwndTV, hItem, TVIS_EXPANDED) == 0) {
 167         RegCloseKey(hKey);
 168         bSuccess = TRUE;
 169         goto done;
 170     }
 171
 172     dwMaxSubKeyLen++; /* account for the \0 terminator */
 173     if (!(Name = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(TCHAR)))) {
 174         goto done;
 175     }
 176     tvItem.cchTextMax = dwMaxSubKeyLen;
 177     /*if (!(tvItem.pszText = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(TCHAR)))) {
 178         goto done;
 179     }*/
 180
 181     /* Get all of the tree node siblings in one contiguous block of memory */
 182     {
 183         DWORD dwPhysicalSize = 0;
 184         DWORD dwActualSize = 0;
 185         DWORD dwNewPhysicalSize;
 186         LPTSTR pszNewNodes;
 187         DWORD dwStep = 10000;
 188
 189         for (childItem = TreeView_GetChild(hwndTV, hItem); childItem;
 190                 childItem = TreeView_GetNextSibling(hwndTV, childItem)) {
 191
 192             if (dwActualSize + dwMaxSubKeyLen + 1 > dwPhysicalSize)
 193             {
 194                 dwNewPhysicalSize = dwActualSize + dwMaxSubKeyLen + 1 + dwStep;
 195
 196                 if (pszNodes)
 197                     pszNewNodes = (LPTSTR) HeapReAlloc(GetProcessHeap(), 0, pszNodes, dwNewPhysicalSize * sizeof(TCHAR));
 198                 else
 199                     pszNewNodes = (LPTSTR) HeapAlloc(GetProcessHeap(), 0, dwNewPhysicalSize * sizeof(TCHAR));
 200                 if (!pszNewNodes)
 201                     goto done;
 202
 203                 dwPhysicalSize = dwNewPhysicalSize;
 204                 pszNodes = pszNewNodes;
 205             }
 206
 207             tvItem.mask = TVIF_TEXT;
 208             tvItem.hItem = childItem;
 209             tvItem.pszText = &pszNodes[dwActualSize];
 210             tvItem.cchTextMax = dwPhysicalSize - dwActualSize;
 211             if (!TreeView_GetItem(hwndTV, &tvItem))
 212                 goto done;
 213
 214             dwActualSize += (DWORD) _tcslen(&pszNodes[dwActualSize]) + 1;
 215         }
 216
 217         if (pszNodes)
 218             pszNodes[dwActualSize] = '\0';
 219     }
 220
 221     /* Now go through all the children in the tree, and check if any have to be removed. */
 222     childItem = TreeView_GetChild(hwndTV, hItem);
 223     while (childItem) {
 224         HTREEITEM nextItem = TreeView_GetNextSibling(hwndTV, childItem);
 225         if (RefreshTreeItem(hwndTV, childItem) == FALSE) {
 226             (void)TreeView_DeleteItem(hwndTV, childItem);
 227         }
 228         childItem = nextItem;
 229     }
 230
 231         /* Now go through all the children in the registry, and check if any have to be added. */
 232     bAddedAny = FALSE;
 233     for (dwIndex = 0; dwIndex < dwCount; dwIndex++) {
 234         DWORD cName = dwMaxSubKeyLen, dwSubCount;
 235         BOOL found;
 236
 237         found = FALSE;
 238         if (RegEnumKeyEx(hKey, dwIndex, Name, &cName, 0, 0, 0, NULL) != ERROR_SUCCESS) {
 239             continue;
 240         }
 241
 242         /* Check if the node is already in there. */
 243         if (pszNodes) {
 244             for (s = pszNodes; *s; s += _tcslen(s) + 1) {
 245                 if (!_tcscmp(s, Name)) {
 246                     found = TRUE;
 247                     break;
 248                 }
 249             }
 250         }
 251
 252         if (found == FALSE) {
 253             /* Find the number of children of the node. */
 254             dwSubCount = 0;
 255             if (RegOpenKeyEx(hKey, Name, 0, KEY_QUERY_VALUE, &hSubKey) == ERROR_SUCCESS) {
 256                 if (RegQueryInfoKey(hSubKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS) {
 257                     dwSubCount = 0;
 258                 }
 259                 RegCloseKey(hSubKey);
 260             }
 261
 262             AddEntryToTree(hwndTV, hItem, Name, NULL, dwSubCount);
 263             bAddedAny = TRUE;
 264         }
 265     }
 266     RegCloseKey(hKey);
 267
 268     if (bAddedAny)
 269         SendMessage(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM) hItem);
 270
 271     bSuccess = TRUE;
 272
 273 done:
 274     if (pszNodes)
 275         HeapFree(GetProcessHeap(), 0, pszNodes);
 276     if (Name)
 277         HeapFree(GetProcessHeap(), 0, Name);
 278     return bSuccess;
 279 }
 280
 281 BOOL RefreshTreeView(HWND hwndTV)
 282 {
 283     HTREEITEM hItem;
 284     HTREEITEM hSelectedItem;
 285     HCURSOR hcursorOld;
 286
 287     hSelectedItem = TreeView_GetSelection(hwndTV);
 288     hcursorOld = SetCursor(LoadCursor(NULL, IDC_WAIT));
 289     SendMessage(hwndTV, WM_SETREDRAW, FALSE, 0);
 290
 291     hItem = TreeView_GetChild(hwndTV, TreeView_GetRoot(hwndTV));
 292     while (hItem) {
 293         RefreshTreeItem(hwndTV, hItem);
 294         hItem = TreeView_GetNextSibling(hwndTV, hItem);
 295     }
 296
 297     SendMessage(hwndTV, WM_SETREDRAW, TRUE, 0);
 298     SetCursor(hcursorOld);
 299
 300     /* We reselect the currently selected node, this will prompt a refresh of the listview. */
 301     (void)TreeView_SelectItem(hwndTV, hSelectedItem);
 302     return TRUE;
 303 }
 304
 305 HTREEITEM InsertNode(HWND hwndTV, HTREEITEM hItem, LPTSTR name)
 306 {
 307     TCHAR buf[MAX_NEW_KEY_LEN];
 308     HTREEITEM hNewItem = 0;
 309     TVITEMEX item;
 310
 311     /* Default to the current selection */
 312     if (!hItem)
 313     {
 314         hItem = TreeView_GetSelection(hwndTV);
 315         if (!hItem)
 316             return FALSE;
 317     }
 318
 319     memset(&item, 0, sizeof(item));
 320     item.hItem = hItem;
 321     item.mask = TVIF_CHILDREN | TVIF_HANDLE | TVIF_STATE;
 322     if (!TreeView_GetItem(hwndTV, &item))
 323         return FALSE;
 324
 325     if ((item.state & TVIS_EXPANDEDONCE) && (item.cChildren > 0))
 326     {
 327         hNewItem = AddEntryToTree(hwndTV, hItem, name, 0, 0);
 328         SendMessage(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM) hItem);
 329     }
 330         else
 331     {
 332         item.mask = TVIF_CHILDREN | TVIF_HANDLE;
 333         item.hItem = hItem;
 334         item.cChildren = 1;
 335         if (!TreeView_SetItem(hwndTV, &item))
 336             return FALSE;
 337     }
 338
 339     (void)TreeView_Expand(hwndTV, hItem, TVE_EXPAND);
 340     if (!hNewItem)
 341     {
 342         for(hNewItem = TreeView_GetChild(hwndTV, hItem); hNewItem; hNewItem = TreeView_GetNextSibling(hwndTV, hNewItem))
 343         {
 344             item.mask = TVIF_HANDLE | TVIF_TEXT;
 345             item.hItem = hNewItem;
 346             item.pszText = buf;
 347             item.cchTextMax = COUNT_OF(buf);
 348             if (!TreeView_GetItem(hwndTV, &item)) continue;
 349             if (lstrcmp(name, item.pszText) == 0) break;
 350         }
 351     }
 352     if (hNewItem) (void)TreeView_SelectItem(hwndTV, hNewItem);
 353
 354     return hNewItem;
 355 }
 356
 357 HWND StartKeyRename(HWND hwndTV)
 358 {
 359     HTREEITEM hItem;
 360
 361     if(!(hItem = TreeView_GetSelection(hwndTV))) return 0;
 362     return TreeView_EditLabel(hwndTV, hItem);
 363 }
 364
 365 static BOOL InitTreeViewItems(HWND hwndTV, LPTSTR pHostName)
 366 {
 367     TVITEM tvi;
 368     TVINSERTSTRUCT tvins;
 369     HTREEITEM hRoot;
 370
 371     tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
 372     /* Set the text of the item.  */
 373     tvi.pszText = pHostName;
 374     tvi.cchTextMax = lstrlen(tvi.pszText);
 375     /* Assume the item is not a parent item, so give it an image.  */
 376     tvi.iImage = Image_Root;
 377     tvi.iSelectedImage = Image_Root;
 378     tvi.cChildren = 5;
 379     /* Save the heading level in the item's application-defined data area.  */
 380     tvi.lParam = (LPARAM)NULL;
 381     tvins.item = tvi;
 382     tvins.hInsertAfter = (HTREEITEM)TVI_FIRST;
 383     tvins.hParent = TVI_ROOT;
 384     /* Add the item to the tree view control.  */
 385     if (!(hRoot = TreeView_InsertItem(hwndTV, &tvins))) return FALSE;
 386
 387     if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_CLASSES_ROOT"), HKEY_CLASSES_ROOT, 1)) return FALSE;
 388     if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_CURRENT_USER"), HKEY_CURRENT_USER, 1)) return FALSE;
 389     if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_LOCAL_MACHINE"), HKEY_LOCAL_MACHINE, 1)) return FALSE;
 390     if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_USERS"), HKEY_USERS, 1)) return FALSE;
 391     if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_CURRENT_CONFIG"), HKEY_CURRENT_CONFIG, 1)) return FALSE;
 392
 393         if (GetVersion() & 0x80000000)
 394     {
 395         /* Win9x specific key */
 396         if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_DYN_DATA"), HKEY_DYN_DATA, 1)) return FALSE;
 397         }
 398
 399     /* expand and select host name */
 400     (void)TreeView_Expand(hwndTV, hRoot, TVE_EXPAND);
 401     (void)TreeView_Select(hwndTV, hRoot, TVGN_CARET);
 402     return TRUE;
 403 }
 404
 405
 406 /*
 407  * InitTreeViewImageLists - creates an image list, adds three bitmaps
 408  * to it, and associates the image list with a tree view control.
 409  * Returns TRUE if successful, or FALSE otherwise.
 410  * hwndTV - handle to the tree view control.
 411  */
 412 static BOOL InitTreeViewImageLists(HWND hwndTV)
 413 {
 414     HIMAGELIST himl;  /* handle to image list  */
 415     HICON hico;       /* handle to icon  */
 416
 417     /* Create the image list.  */
 418     if ((himl = ImageList_Create(CX_ICON, CY_ICON,
 419                                  ILC_MASK|ILC_COLOR32, 0, NUM_ICONS)) == NULL)
 420         return FALSE;
 421
 422     /* Add the open file, closed file, and document bitmaps.  */
 423     hico = LoadIcon(hInst, MAKEINTRESOURCE(IDI_OPEN_FILE));
 424     Image_Open = ImageList_AddIcon(himl, hico);
 425
 426     hico = LoadIcon(hInst, MAKEINTRESOURCE(IDI_CLOSED_FILE));
 427     Image_Closed = ImageList_AddIcon(himl, hico);
 428
 429     hico = LoadIcon(hInst, MAKEINTRESOURCE(IDI_ROOT));
 430     Image_Root = ImageList_AddIcon(himl, hico);
 431
 432     /* Fail if not all of the images were added.  */
 433     if (ImageList_GetImageCount(himl) < NUM_ICONS)
 434     {
 435       return FALSE;
 436     }
 437
 438     /* Associate the image list with the tree view control.  */
 439     (void)TreeView_SetImageList(hwndTV, himl, TVSIL_NORMAL);
 440
 441     return TRUE;
 442 }
 443
 444 BOOL OnTreeExpanding(HWND hwndTV, NMTREEVIEW* pnmtv)
 445 {
 446     DWORD dwCount, dwIndex, dwMaxSubKeyLen;
 447     HKEY hRoot, hNewKey, hKey;
 448     LPCTSTR keyPath;
 449     LPTSTR Name;
 450     LONG errCode;
 451     HCURSOR hcursorOld;
 452
 453     static int expanding;
 454     if (expanding) return FALSE;
 455     if (pnmtv->itemNew.state & TVIS_EXPANDEDONCE ) {
 456         return TRUE;
 457     }
 458     expanding = TRUE;
 459     hcursorOld = SetCursor(LoadCursor(NULL, IDC_WAIT));
 460     SendMessage(hwndTV, WM_SETREDRAW, FALSE, 0);
 461
 462     keyPath = GetItemPath(hwndTV, pnmtv->itemNew.hItem, &hRoot);
 463     if (!keyPath) goto done;
 464
 465     if (*keyPath) {
 466         errCode = RegOpenKeyEx(hRoot, keyPath, 0, KEY_READ, &hNewKey);
 467         if (errCode != ERROR_SUCCESS) goto done;
 468     } else {
 469         hNewKey = hRoot;
 470     }
 471
 472     errCode = RegQueryInfoKey(hNewKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0);
 473     if (errCode != ERROR_SUCCESS) goto done;
 474     dwMaxSubKeyLen++; /* account for the \0 terminator */
 475     Name = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(TCHAR));
 476     if (!Name) goto done;
 477
 478     for (dwIndex = 0; dwIndex < dwCount; dwIndex++) {
 479         DWORD cName = dwMaxSubKeyLen, dwSubCount;
 480
 481         errCode = RegEnumKeyEx(hNewKey, dwIndex, Name, &cName, 0, 0, 0, 0);
 482         if (errCode != ERROR_SUCCESS) continue;
 483         errCode = RegOpenKeyEx(hNewKey, Name, 0, KEY_QUERY_VALUE, &hKey);
 484         if (errCode == ERROR_SUCCESS) {
 485             errCode = RegQueryInfoKey(hKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0);
 486             RegCloseKey(hKey);
 487         }
 488         if (errCode != ERROR_SUCCESS) dwSubCount = 0;
 489         AddEntryToTree(hwndTV, pnmtv->itemNew.hItem, Name, NULL, dwSubCount);
 490     }
 491
 492     SendMessage(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM)pnmtv->itemNew.hItem);
 493
 494     RegCloseKey(hNewKey);
 495     HeapFree(GetProcessHeap(), 0, Name);
 496
 497 done:
 498     SendMessage(hwndTV, WM_SETREDRAW, TRUE, 0);
 499     SetCursor(hcursorOld);
 500     expanding = FALSE;
 501
 502     return TRUE;
 503 }
 504
 505
 506 BOOL CreateNewKey(HWND hwndTV, HTREEITEM hItem)
 507 {
 508     TCHAR szNewKeyFormat[128];
 509     TCHAR szNewKey[128];
 510     LPCTSTR pszKeyPath;
 511     int iIndex = 1;
 512     HKEY hRootKey;
 513     HKEY hKey = NULL;
 514     HKEY hNewKey = NULL;
 515     BOOL bSuccess = FALSE;
 516     LONG lResult;
 517     DWORD dwDisposition;
 518     HTREEITEM hNewItem;
 519
 520     pszKeyPath = GetItemPath(g_pChildWnd->hTreeWnd, hItem, &hRootKey);
 521     if (RegOpenKey(hRootKey, pszKeyPath, &hKey) != ERROR_SUCCESS)
 522         goto done;
 523
 524     if (LoadString(hInst, IDS_NEW_KEY, szNewKeyFormat, sizeof(szNewKeyFormat) / sizeof(szNewKeyFormat[0])) <= 0)
 525         goto done;
 526
 527     /* Need to create a new key with a unique name */
 528     do
 529     {
 530         _sntprintf(szNewKey, sizeof(szNewKey) / sizeof(szNewKey[0]), szNewKeyFormat, iIndex++);
 531         lResult = RegCreateKeyEx(hKey, szNewKey, 0, NULL, 0, KEY_ALL_ACCESS, NULL, &hNewKey, &dwDisposition);
 532         if (hNewKey && (dwDisposition == REG_OPENED_EXISTING_KEY))
 533         {
 534             RegCloseKey(hNewKey);
 535             hNewKey = NULL;
 536         }
 537     }
 538     while(!hNewKey);
 539
 540     /* Insert the new key */
 541     hNewItem = InsertNode(hwndTV, hItem, szNewKey);
 542     if (!hNewItem)
 543         goto done;
 544
 545     /* The new key's name is probably not appropriate yet */
 546     (void)TreeView_EditLabel(hwndTV, hNewItem);
 547
 548     bSuccess = TRUE;
 549
 550 done:
 551     if (hKey)
 552         RegCloseKey(hKey);
 553     if (hNewKey)
 554         RegCloseKey(hNewKey);
 555     return bSuccess;
 556 }
 557
 558
 559 /*
 560  * CreateTreeView - creates a tree view control.
 561  * Returns the handle to the new control if successful, or NULL otherwise.
 562  * hwndParent - handle to the control's parent window.
 563  */
 564 HWND CreateTreeView(HWND hwndParent, LPTSTR pHostName, HMENU id)
 565 {
 566     RECT rcClient;
 567     HWND hwndTV;
 568
 569     /* Get the dimensions of the parent window's client area, and create the tree view control.  */
 570     GetClientRect(hwndParent, &rcClient);
 571     hwndTV = CreateWindowEx(WS_EX_CLIENTEDGE, WC_TREEVIEW, NULL,
 572                             WS_VISIBLE | WS_CHILD | WS_TABSTOP | TVS_HASLINES | TVS_HASBUTTONS | TVS_LINESATROOT | TVS_EDITLABELS,
 573                             0, 0, rcClient.right, rcClient.bottom,
 574                             hwndParent, id, hInst, NULL);
 575     /* Initialize the image list, and add items to the control.  */
 576     if (!InitTreeViewImageLists(hwndTV) || !InitTreeViewItems(hwndTV, pHostName)) {
 577         DestroyWindow(hwndTV);
 578         return NULL;
 579     }
 580     return hwndTV;
 581 }
 582
 583 void DestroyTreeView() {
 584         if (pathBuffer)
 585                 HeapFree(GetProcessHeap(), 0, pathBuffer);
 586 }
 587
 588 BOOL SelectNode(HWND hwndTV, LPCTSTR keyPath)
 589 {
 590         HTREEITEM hRoot, hItem;
 591         HTREEITEM hChildItem;
 592         TCHAR szPathPart[128];
 593         TCHAR szBuffer[128];
 594         LPCTSTR s;
 595         TVITEM tvi;
 596
 597     /* Total no-good hack */
 598     if (!_tcsncmp(keyPath, _T("My Computer\\"), 12))
 599         keyPath += 12;
 600
 601         hRoot = TreeView_GetRoot(hwndTV);
 602         hItem = hRoot;
 603
 604         while(keyPath[0])
 605         {
 606                 s = _tcschr(keyPath, TEXT('\\'));
 607                 lstrcpyn(szPathPart, keyPath, s ? s - keyPath + 1 : _tcslen(keyPath) + 1);
 608
 609                 /* Special case for root to expand root key abbreviations */
 610                 if (hItem == hRoot)
 611                 {
 612                         if (!_tcscmp(szPathPart, TEXT("HKCR")))
 613                                 _tcscpy(szPathPart, TEXT("HKEY_CLASSES_ROOT"));
 614                         else if (!_tcscmp(szPathPart, TEXT("HKCU")))
 615                                 _tcscpy(szPathPart, TEXT("HKEY_CURRENT_USER"));
 616                         else if (!_tcscmp(szPathPart, TEXT("HKLM")))
 617                                 _tcscpy(szPathPart, TEXT("HKEY_LOCAL_MACHINE"));
 618                         else if (!_tcscmp(szPathPart, TEXT("HKU")))
 619                                 _tcscpy(szPathPart, TEXT("HKEY_USERS"));
 620                         else if (!_tcscmp(szPathPart, TEXT("HKCC")))
 621                                 _tcscpy(szPathPart, TEXT("HKEY_CURRENT_CONFIG"));
 622                         else if (!_tcscmp(szPathPart, TEXT("HKDD")))
 623                                 _tcscpy(szPathPart, TEXT("HKEY_DYN_DATA"));
 624                 }
 625
 626                 for (hChildItem = TreeView_GetChild(hwndTV, hItem); hChildItem;
 627                         hChildItem = TreeView_GetNextSibling(hwndTV, hChildItem))
 628                 {
 629                         memset(&tvi, 0, sizeof(tvi));
 630                         tvi.hItem = hChildItem;
 631                         tvi.mask = TVIF_TEXT | TVIF_CHILDREN;
 632                         tvi.pszText = szBuffer;
 633                         tvi.cchTextMax = sizeof(szBuffer) / sizeof(szBuffer[0]);
 634
 635                         (void)TreeView_GetItem(hwndTV, &tvi);
 636
 637                         if (!_tcscmp(szBuffer, szPathPart))
 638                                 break;
 639                 }
 640
 641                 if (!hChildItem)
 642                         return FALSE;
 643
 644                 if (tvi.cChildren > 0)
 645                 {
 646                         if (!TreeView_Expand(hwndTV, hChildItem, TVE_EXPAND))
 647                                 return FALSE;
 648                 }
 649
 650                 keyPath = s ? s + 1 : _T("");
 651                 hItem = hChildItem;
 652         }
 653
 654         (void)TreeView_SelectItem(hwndTV, hItem);
 655         (void)TreeView_EnsureVisible(hwndTV, hItem);
 656
 657         return TRUE;
 658 }
 659
 660