reactos/base/applications/regedit/childwnd.c

   1 /*
   2  * Regedit child window
   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 ChildWnd* g_pChildWnd;
  24 static int last_split;
  25 HBITMAP SizingPattern = 0;
  26 HBRUSH  SizingBrush = 0;
  27 static WCHAR Suggestions[256];
  28
  29 extern LPCWSTR get_root_key_name(HKEY hRootKey)
  30 {
  31     if (hRootKey == HKEY_CLASSES_ROOT) return L"HKEY_CLASSES_ROOT";
  32     if (hRootKey == HKEY_CURRENT_USER) return L"HKEY_CURRENT_USER";
  33     if (hRootKey == HKEY_LOCAL_MACHINE) return L"HKEY_LOCAL_MACHINE";
  34     if (hRootKey == HKEY_USERS) return L"HKEY_USERS";
  35     if (hRootKey == HKEY_CURRENT_CONFIG) return L"HKEY_CURRENT_CONFIG";
  36     if (hRootKey == HKEY_DYN_DATA) return L"HKEY_DYN_DATA";
  37
  38     return L"UKNOWN HKEY, PLEASE REPORT";
  39 }
  40
  41 extern void ResizeWnd(int cx, int cy)
  42 {
  43     HDWP hdwp = BeginDeferWindowPos(3);
  44     RECT rt, rs, rb;
  45     const int tHeight = 18;
  46     SetRect(&rt, 0, 0, cx, cy);
  47     cy = 0;
  48     if (hStatusBar != NULL)
  49     {
  50         GetWindowRect(hStatusBar, &rs);
  51         cy = rs.bottom - rs.top;
  52     }
  53     GetWindowRect(g_pChildWnd->hAddressBtnWnd, &rb);
  54     cx = g_pChildWnd->nSplitPos + SPLIT_WIDTH/2;
  55     DeferWindowPos(hdwp, g_pChildWnd->hAddressBarWnd, 0, rt.left, rt.top, rt.right-rt.left - tHeight-2, tHeight, SWP_NOZORDER|SWP_NOACTIVATE);
  56     DeferWindowPos(hdwp, g_pChildWnd->hAddressBtnWnd, 0, rt.right - tHeight, rt.top, tHeight, tHeight, SWP_NOZORDER|SWP_NOACTIVATE);
  57     DeferWindowPos(hdwp, g_pChildWnd->hTreeWnd, 0, rt.left, rt.top + tHeight+2, g_pChildWnd->nSplitPos-SPLIT_WIDTH/2-rt.left, rt.bottom-rt.top-cy, SWP_NOZORDER|SWP_NOACTIVATE);
  58     DeferWindowPos(hdwp, g_pChildWnd->hListWnd, 0, rt.left+cx, rt.top + tHeight+2, rt.right-cx, rt.bottom-rt.top-cy, SWP_NOZORDER|SWP_NOACTIVATE);
  59     EndDeferWindowPos(hdwp);
  60 }
  61
  62 /*******************************************************************************
  63  * Local module support methods
  64  */
  65
  66 static void draw_splitbar(HWND hWnd, int x)
  67 {
  68     RECT rt;
  69     HGDIOBJ OldObj;
  70     HDC hdc = GetDC(hWnd);
  71
  72     if(!SizingPattern)
  73     {
  74         const DWORD Pattern[4] = {0x5555AAAA, 0x5555AAAA, 0x5555AAAA, 0x5555AAAA};
  75         SizingPattern = CreateBitmap(8, 8, 1, 1, Pattern);
  76     }
  77     if(!SizingBrush)
  78     {
  79         SizingBrush = CreatePatternBrush(SizingPattern);
  80     }
  81     GetClientRect(hWnd, &rt);
  82     rt.left = x - SPLIT_WIDTH/2;
  83     rt.right = x + SPLIT_WIDTH/2+1;
  84     OldObj = SelectObject(hdc, SizingBrush);
  85     PatBlt(hdc, rt.left, rt.top, rt.right - rt.left, rt.bottom - rt.top, PATINVERT);
  86     SelectObject(hdc, OldObj);
  87     ReleaseDC(hWnd, hdc);
  88 }
  89
  90 static void OnPaint(HWND hWnd)
  91 {
  92     PAINTSTRUCT ps;
  93     RECT rt;
  94
  95     GetClientRect(hWnd, &rt);
  96     BeginPaint(hWnd, &ps);
  97     FillRect(ps.hdc, &rt, GetSysColorBrush(COLOR_BTNFACE));
  98     EndPaint(hWnd, &ps);
  99 }
 100
 101 /*******************************************************************************
 102  * finish_splitbar [internal]
 103  *
 104  * make the splitbar invisible and resize the windows
 105  * (helper for ChildWndProc)
 106  */
 107 static void finish_splitbar(HWND hWnd, int x)
 108 {
 109     RECT rt;
 110
 111     draw_splitbar(hWnd, last_split);
 112     last_split = -1;
 113     GetClientRect(hWnd, &rt);
 114     g_pChildWnd->nSplitPos = x;
 115     ResizeWnd(rt.right, rt.bottom);
 116     ReleaseCapture();
 117 }
 118
 119 /*******************************************************************************
 120  *
 121  *  FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
 122  *
 123  *  PURPOSE:  Processes WM_COMMAND messages for the main frame window.
 124  *
 125  */
 126
 127 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 128 {
 129     HTREEITEM hSelection;
 130     HKEY hRootKey;
 131     LPCWSTR keyPath, s;
 132     WORD wID = LOWORD(wParam);
 133
 134     UNREFERENCED_PARAMETER(message);
 135
 136     switch (wID)
 137     {
 138         /* Parse the menu selections: */
 139     case ID_REGISTRY_EXIT:
 140         DestroyWindow(hWnd);
 141         break;
 142     case ID_VIEW_REFRESH:
 143         /* TODO */
 144         break;
 145     case ID_TREE_EXPANDBRANCH:
 146         (void)TreeView_Expand(g_pChildWnd->hTreeWnd, TreeView_GetSelection(g_pChildWnd->hTreeWnd), TVE_EXPAND);
 147         break;
 148     case ID_TREE_COLLAPSEBRANCH:
 149         (void)TreeView_Expand(g_pChildWnd->hTreeWnd, TreeView_GetSelection(g_pChildWnd->hTreeWnd), TVE_COLLAPSE);
 150         break;
 151     case ID_TREE_RENAME:
 152         SetFocus(g_pChildWnd->hTreeWnd);
 153         (void)TreeView_EditLabel(g_pChildWnd->hTreeWnd, TreeView_GetSelection(g_pChildWnd->hTreeWnd));
 154         break;
 155     case ID_TREE_DELETE:
 156         hSelection = TreeView_GetSelection(g_pChildWnd->hTreeWnd);
 157         keyPath = GetItemPath(g_pChildWnd->hTreeWnd, hSelection, &hRootKey);
 158
 159         if (keyPath == 0 || *keyPath == 0)
 160         {
 161             MessageBeep(MB_ICONHAND);
 162         }
 163         else if (DeleteKey(hWnd, hRootKey, keyPath))
 164             DeleteNode(g_pChildWnd->hTreeWnd, 0);
 165         break;
 166     case ID_TREE_EXPORT:
 167         ExportRegistryFile(g_pChildWnd->hTreeWnd);
 168         break;
 169     case ID_EDIT_FIND:
 170         FindDialog(hWnd);
 171         break;
 172     case ID_EDIT_COPYKEYNAME:
 173         hSelection = TreeView_GetSelection(g_pChildWnd->hTreeWnd);
 174         keyPath = GetItemPath(g_pChildWnd->hTreeWnd, hSelection, &hRootKey);
 175         CopyKeyName(hWnd, hRootKey, keyPath);
 176         break;
 177     case ID_EDIT_NEW_KEY:
 178         CreateNewKey(g_pChildWnd->hTreeWnd, TreeView_GetSelection(g_pChildWnd->hTreeWnd));
 179         break;
 180     case ID_EDIT_NEW_STRINGVALUE:
 181     case ID_EDIT_NEW_BINARYVALUE:
 182     case ID_EDIT_NEW_DWORDVALUE:
 183         SendMessageW(hFrameWnd, WM_COMMAND, wParam, lParam);
 184         break;
 185     case ID_SWITCH_PANELS:
 186         g_pChildWnd->nFocusPanel = !g_pChildWnd->nFocusPanel;
 187         SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 188         break;
 189     default:
 190         if ((wID >= ID_TREE_SUGGESTION_MIN) && (wID <= ID_TREE_SUGGESTION_MAX))
 191         {
 192             s = Suggestions;
 193             while(wID > ID_TREE_SUGGESTION_MIN)
 194             {
 195                 if (*s)
 196                     s += wcslen(s) + 1;
 197                 wID--;
 198             }
 199             SelectNode(g_pChildWnd->hTreeWnd, s);
 200             break;
 201         }
 202         return FALSE;
 203     }
 204     return TRUE;
 205 }
 206
 207 /*******************************************************************************
 208  *
 209  *  Key suggestion
 210  */
 211
 212 #define MIN(a,b)    ((a < b) ? (a) : (b))
 213
 214 static void SuggestKeys(HKEY hRootKey, LPCWSTR pszKeyPath, LPWSTR pszSuggestions,
 215                         size_t iSuggestionsLength)
 216 {
 217     WCHAR szBuffer[256];
 218     WCHAR szLastFound[256];
 219     size_t i;
 220     HKEY hOtherKey, hSubKey;
 221     BOOL bFound;
 222
 223     memset(pszSuggestions, 0, iSuggestionsLength * sizeof(*pszSuggestions));
 224     iSuggestionsLength--;
 225
 226     /* Are we a root key in HKEY_CLASSES_ROOT? */
 227     if ((hRootKey == HKEY_CLASSES_ROOT) && pszKeyPath[0] && !wcschr(pszKeyPath, L'\\'))
 228     {
 229         do
 230         {
 231             bFound = FALSE;
 232
 233             /* Check default key */
 234             if (QueryStringValue(hRootKey, pszKeyPath, NULL,
 235                                  szBuffer, COUNT_OF(szBuffer)) == ERROR_SUCCESS)
 236             {
 237                 /* Sanity check this key; it cannot be empty, nor can it be a
 238                  * loop back */
 239                 if ((szBuffer[0] != L'\0') && wcsicmp(szBuffer, pszKeyPath))
 240                 {
 241                     if (RegOpenKeyW(hRootKey, szBuffer, &hOtherKey) == ERROR_SUCCESS)
 242                     {
 243                         wcsncpy(pszSuggestions, L"HKCR\\", (int) iSuggestionsLength);
 244                         i = wcslen(pszSuggestions);
 245                         pszSuggestions += i;
 246                         iSuggestionsLength -= i;
 247
 248                         wcsncpy(pszSuggestions, szBuffer, (int) iSuggestionsLength);
 249                         i = MIN(wcslen(pszSuggestions) + 1, iSuggestionsLength);
 250                         pszSuggestions += i;
 251                         iSuggestionsLength -= i;
 252                         RegCloseKey(hOtherKey);
 253
 254                         bFound = TRUE;
 255                         wcscpy(szLastFound, szBuffer);
 256                         pszKeyPath = szLastFound;
 257                     }
 258                 }
 259             }
 260         }
 261         while(bFound && (iSuggestionsLength > 0));
 262
 263         /* Check CLSID key */
 264         if (RegOpenKeyW(hRootKey, pszKeyPath, &hSubKey) == ERROR_SUCCESS)
 265         {
 266             if (QueryStringValue(hSubKey, L"CLSID", NULL, szBuffer,
 267                                  COUNT_OF(szBuffer)) == ERROR_SUCCESS)
 268             {
 269                 wcsncpy(pszSuggestions, L"HKCR\\CLSID\\", (int)iSuggestionsLength);
 270                 i = wcslen(pszSuggestions);
 271                 pszSuggestions += i;
 272                 iSuggestionsLength -= i;
 273
 274                 wcsncpy(pszSuggestions, szBuffer, (int)iSuggestionsLength);
 275                 i = MIN(wcslen(pszSuggestions) + 1, iSuggestionsLength);
 276                 pszSuggestions += i;
 277                 iSuggestionsLength -= i;
 278             }
 279             RegCloseKey(hSubKey);
 280         }
 281     }
 282 }
 283
 284
 285 LRESULT CALLBACK AddressBarProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 286 {
 287     WNDPROC oldwndproc;
 288     static WCHAR s_szNode[256];
 289     oldwndproc = (WNDPROC)(LONG_PTR)GetWindowLongPtr(hwnd, GWL_USERDATA);
 290
 291     switch (uMsg)
 292     {
 293     case WM_KEYUP:
 294         if (wParam == VK_RETURN)
 295         {
 296             GetWindowTextW(hwnd, s_szNode, COUNT_OF(s_szNode));
 297             SelectNode(g_pChildWnd->hTreeWnd, s_szNode);
 298         }
 299         break;
 300     default:
 301         break;
 302     }
 303     return CallWindowProc(oldwndproc, hwnd, uMsg, wParam, lParam);
 304 }
 305
 306 /*******************************************************************************
 307  *
 308  *  FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
 309  *
 310  *  PURPOSE:  Processes messages for the child windows.
 311  *
 312  *  WM_COMMAND  - process the application menu
 313  *  WM_PAINT    - Paint the main window
 314  *  WM_DESTROY  - post a quit message and return
 315  *
 316  */
 317 LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 318 {
 319     BOOL Result;
 320
 321     switch (message)
 322     {
 323     case WM_CREATE:
 324     {
 325         WNDPROC oldproc;
 326         HFONT hFont;
 327         WCHAR buffer[MAX_PATH];
 328         /* load "My Computer" string */
 329         LoadStringW(hInst, IDS_MY_COMPUTER, buffer, COUNT_OF(buffer));
 330
 331         g_pChildWnd = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ChildWnd));
 332         if (!g_pChildWnd) return 0;
 333
 334         wcsncpy(g_pChildWnd->szPath, buffer, MAX_PATH);
 335         g_pChildWnd->nSplitPos = 250;
 336         g_pChildWnd->hWnd = hWnd;
 337         g_pChildWnd->hAddressBarWnd = CreateWindowExW(WS_EX_CLIENTEDGE, L"Edit", NULL, WS_CHILD | WS_VISIBLE | WS_CHILDWINDOW | WS_TABSTOP,
 338                                                       CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
 339                                                       hWnd, (HMENU)0, hInst, 0);
 340         g_pChildWnd->hAddressBtnWnd = CreateWindowExW(WS_EX_CLIENTEDGE, L"Button", L"»", WS_CHILD | WS_VISIBLE | WS_CHILDWINDOW | WS_TABSTOP | BS_DEFPUSHBUTTON,
 341                                                       CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
 342                                                       hWnd, (HMENU)0, hInst, 0);
 343         g_pChildWnd->hTreeWnd = CreateTreeView(hWnd, g_pChildWnd->szPath, (HMENU) TREE_WINDOW);
 344         g_pChildWnd->hListWnd = CreateListView(hWnd, (HMENU) LIST_WINDOW/*, g_pChildWnd->szPath*/);
 345         SetFocus(g_pChildWnd->hTreeWnd);
 346
 347         /* set the address bar and button font */
 348         if ((g_pChildWnd->hAddressBarWnd) && (g_pChildWnd->hAddressBtnWnd))
 349         {
 350             hFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
 351             SendMessageW(g_pChildWnd->hAddressBarWnd,
 352                          WM_SETFONT,
 353                          (WPARAM)hFont,
 354                          0);
 355             SendMessageW(g_pChildWnd->hAddressBtnWnd,
 356                          WM_SETFONT,
 357                          (WPARAM)hFont,
 358                          0);
 359         }
 360         /* Subclass the AddressBar */
 361         oldproc = (WNDPROC)(LONG_PTR)GetWindowLongPtr(g_pChildWnd->hAddressBarWnd, GWL_WNDPROC);
 362         SetWindowLongPtr(g_pChildWnd->hAddressBarWnd, GWL_USERDATA, (DWORD_PTR)oldproc);
 363         SetWindowLongPtr(g_pChildWnd->hAddressBarWnd, GWL_WNDPROC, (DWORD_PTR)AddressBarProc);
 364         break;
 365     }
 366     case WM_COMMAND:
 367         if(HIWORD(wParam) == BN_CLICKED)
 368         {
 369             PostMessageW(g_pChildWnd->hAddressBarWnd, WM_KEYUP, VK_RETURN, 0);
 370         }
 371
 372         if (!_CmdWndProc(hWnd, message, wParam, lParam))
 373         {
 374             goto def;
 375         }
 376         break;
 377     case WM_PAINT:
 378         OnPaint(hWnd);
 379         return 0;
 380     case WM_SETCURSOR:
 381         if (LOWORD(lParam) == HTCLIENT)
 382         {
 383             POINT pt;
 384             GetCursorPos(&pt);
 385             ScreenToClient(hWnd, &pt);
 386             if (pt.x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1)
 387             {
 388                 SetCursor(LoadCursorW(0, IDC_SIZEWE));
 389                 return TRUE;
 390             }
 391         }
 392         goto def;
 393     case WM_DESTROY:
 394         DestroyTreeView();
 395         DestroyListView(g_pChildWnd->hListWnd);
 396         DestroyMainMenu();
 397         HeapFree(GetProcessHeap(), 0, g_pChildWnd);
 398         g_pChildWnd = NULL;
 399         PostQuitMessage(0);
 400         break;
 401     case WM_LBUTTONDOWN:
 402     {
 403         RECT rt;
 404         int x = (short)LOWORD(lParam);
 405         GetClientRect(hWnd, &rt);
 406         if (x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1)
 407         {
 408             last_split = g_pChildWnd->nSplitPos;
 409             draw_splitbar(hWnd, last_split);
 410             SetCapture(hWnd);
 411         }
 412         break;
 413     }
 414
 415     case WM_LBUTTONUP:
 416     case WM_RBUTTONDOWN:
 417         if (GetCapture() == hWnd)
 418         {
 419             finish_splitbar(hWnd, LOWORD(lParam));
 420         }
 421         break;
 422
 423     case WM_CAPTURECHANGED:
 424         if (GetCapture()==hWnd && last_split>=0)
 425             draw_splitbar(hWnd, last_split);
 426         break;
 427
 428     case WM_KEYDOWN:
 429         if (wParam == VK_ESCAPE)
 430             if (GetCapture() == hWnd)
 431             {
 432                 RECT rt;
 433                 draw_splitbar(hWnd, last_split);
 434                 GetClientRect(hWnd, &rt);
 435                 ResizeWnd(rt.right, rt.bottom);
 436                 last_split = -1;
 437                 ReleaseCapture();
 438                 SetCursor(LoadCursorW(0, IDC_ARROW));
 439             }
 440         break;
 441
 442     case WM_MOUSEMOVE:
 443         if (GetCapture() == hWnd)
 444         {
 445             HDC hdc;
 446             RECT rt;
 447             HGDIOBJ OldObj;
 448             int x = LOWORD(lParam);
 449             if(!SizingPattern)
 450             {
 451                 const DWORD Pattern[4] = {0x5555AAAA, 0x5555AAAA, 0x5555AAAA, 0x5555AAAA};
 452                 SizingPattern = CreateBitmap(8, 8, 1, 1, Pattern);
 453             }
 454             if(!SizingBrush)
 455             {
 456                 SizingBrush = CreatePatternBrush(SizingPattern);
 457             }
 458
 459             GetClientRect(hWnd, &rt);
 460             x = (SHORT) min(max(x, SPLIT_MIN), rt.right - SPLIT_MIN);
 461             if(last_split != x)
 462             {
 463                 rt.left = last_split-SPLIT_WIDTH/2;
 464                 rt.right = last_split+SPLIT_WIDTH/2+1;
 465                 hdc = GetDC(hWnd);
 466                 OldObj = SelectObject(hdc, SizingBrush);
 467                 PatBlt(hdc, rt.left, rt.top, rt.right - rt.left, rt.bottom - rt.top, PATINVERT);
 468                 last_split = x;
 469                 rt.left = x-SPLIT_WIDTH/2;
 470                 rt.right = x+SPLIT_WIDTH/2+1;
 471                 PatBlt(hdc, rt.left, rt.top, rt.right - rt.left, rt.bottom - rt.top, PATINVERT);
 472                 SelectObject(hdc, OldObj);
 473                 ReleaseDC(hWnd, hdc);
 474             }
 475         }
 476         break;
 477
 478     case WM_SETFOCUS:
 479         if (g_pChildWnd != NULL)
 480         {
 481             SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 482         }
 483         break;
 484
 485     case WM_TIMER:
 486         break;
 487
 488     case WM_NOTIFY:
 489         if ((int)wParam == TREE_WINDOW && g_pChildWnd != NULL)
 490         {
 491             switch (((LPNMHDR)lParam)->code)
 492             {
 493             case TVN_ITEMEXPANDING:
 494                 return !OnTreeExpanding(g_pChildWnd->hTreeWnd, (NMTREEVIEW*)lParam);
 495             case TVN_SELCHANGED:
 496             {
 497                 LPCWSTR keyPath, rootName;
 498                 LPWSTR fullPath;
 499                 HKEY hRootKey;
 500
 501                 keyPath = GetItemPath(g_pChildWnd->hTreeWnd, ((NMTREEVIEW*)lParam)->itemNew.hItem, &hRootKey);
 502                 if (keyPath)
 503                 {
 504                     RefreshListView(g_pChildWnd->hListWnd, hRootKey, keyPath);
 505                     rootName = get_root_key_name(hRootKey);
 506                     fullPath = HeapAlloc(GetProcessHeap(), 0, (wcslen(rootName) + 1 + wcslen(keyPath) + 1) * sizeof(WCHAR));
 507                     if (fullPath)
 508                     {
 509                         /* set (correct) the address bar text */
 510                         if(keyPath[0] != L'\0')
 511                             swprintf(fullPath, L"%s\\%s", rootName, keyPath);
 512                         else
 513                             fullPath = wcscpy(fullPath, rootName);
 514                         SendMessageW(hStatusBar, SB_SETTEXTW, 0, (LPARAM)fullPath);
 515                         SendMessageW(g_pChildWnd->hAddressBarWnd, WM_SETTEXT, 0, (LPARAM)fullPath);
 516                         HeapFree(GetProcessHeap(), 0, fullPath);
 517                         /* disable hive manipulation items temporarily (enable only if necessary) */
 518                         EnableMenuItem(GetSubMenu(hMenuFrame,0), ID_REGISTRY_LOADHIVE, MF_BYCOMMAND | MF_GRAYED);
 519                         EnableMenuItem(GetSubMenu(hMenuFrame,0), ID_REGISTRY_UNLOADHIVE, MF_BYCOMMAND | MF_GRAYED);
 520                         /* compare the strings to see if we should enable/disable the "Load Hive" menus accordingly */
 521                         if (!(wcsicmp(rootName, L"HKEY_LOCAL_MACHINE") &&
 522                                 wcsicmp(rootName, L"HKEY_USERS")))
 523                         {
 524                             // enable the unload menu item if at the root
 525                             // otherwise enable the load menu item if there is no slash in keyPath (ie. immediate child selected)
 526                             if(keyPath[0] == L'\0')
 527                                 EnableMenuItem(GetSubMenu(hMenuFrame,0), ID_REGISTRY_LOADHIVE, MF_BYCOMMAND | MF_ENABLED);
 528                             else if(!wcschr(keyPath, L'\\'))
 529                                 EnableMenuItem(GetSubMenu(hMenuFrame,0), ID_REGISTRY_UNLOADHIVE, MF_BYCOMMAND | MF_ENABLED);
 530                         }
 531                     }
 532                 }
 533             }
 534             break;
 535             case NM_SETFOCUS:
 536                 g_pChildWnd->nFocusPanel = 0;
 537                 break;
 538             case TVN_BEGINLABELEDIT:
 539             {
 540                 LPNMTVDISPINFO ptvdi;
 541                 /* cancel label edit for rootkeys  */
 542                 ptvdi = (LPNMTVDISPINFO) lParam;
 543                 if (!TreeView_GetParent(g_pChildWnd->hTreeWnd, ptvdi->item.hItem) ||
 544                     !TreeView_GetParent(g_pChildWnd->hTreeWnd, TreeView_GetParent(g_pChildWnd->hTreeWnd, ptvdi->item.hItem)))
 545                     return TRUE;
 546                 break;
 547             }
 548             case TVN_ENDLABELEDIT:
 549             {
 550                 LPCWSTR keyPath;
 551                 HKEY hRootKey;
 552                 HKEY hKey = NULL;
 553                 LPNMTVDISPINFO ptvdi;
 554                 LONG lResult = TRUE;
 555                 WCHAR szBuffer[MAX_PATH];
 556
 557                 ptvdi = (LPNMTVDISPINFO) lParam;
 558                 if (ptvdi->item.pszText)
 559                 {
 560                     keyPath = GetItemPath(g_pChildWnd->hTreeWnd, TreeView_GetParent(g_pChildWnd->hTreeWnd, ptvdi->item.hItem), &hRootKey);
 561                     _snwprintf(szBuffer, COUNT_OF(szBuffer), L"%s\\%s", keyPath, ptvdi->item.pszText);
 562                     keyPath = GetItemPath(g_pChildWnd->hTreeWnd, ptvdi->item.hItem, &hRootKey);
 563                     if (RegOpenKeyExW(hRootKey, szBuffer, 0, KEY_READ, &hKey) == ERROR_SUCCESS)
 564                     {
 565                         lResult = FALSE;
 566                         RegCloseKey(hKey);
 567                         (void)TreeView_EditLabel(g_pChildWnd->hTreeWnd, ptvdi->item.hItem);
 568                     }
 569                     else
 570                     {
 571                         if (RenameKey(hRootKey, keyPath, ptvdi->item.pszText) != ERROR_SUCCESS)
 572                             lResult = FALSE;
 573                     }
 574                     return lResult;
 575                 }
 576             }
 577             default:
 578                 return 0;
 579             }
 580         }
 581         else
 582         {
 583             if ((int)wParam == LIST_WINDOW && g_pChildWnd != NULL)
 584             {
 585                 switch (((LPNMHDR)lParam)->code)
 586                 {
 587                 case NM_SETFOCUS:
 588                     g_pChildWnd->nFocusPanel = 1;
 589                     break;
 590                 default:
 591                     if(!ListWndNotifyProc(g_pChildWnd->hListWnd, wParam, lParam, &Result))
 592                     {
 593                         goto def;
 594                     }
 595                     return Result;
 596                     break;
 597                 }
 598             }
 599         }
 600         break;
 601
 602     case WM_CONTEXTMENU:
 603     {
 604         POINT pt;
 605         if((HWND)wParam == g_pChildWnd->hListWnd)
 606         {
 607             int i, cnt;
 608             BOOL IsDefault;
 609             pt.x = (short) LOWORD(lParam);
 610             pt.y = (short) HIWORD(lParam);
 611             cnt = ListView_GetSelectedCount(g_pChildWnd->hListWnd);
 612             i = ListView_GetNextItem(g_pChildWnd->hListWnd, -1, LVNI_FOCUSED | LVNI_SELECTED);
 613             if (pt.x == -1 && pt.y == -1)
 614             {
 615                 RECT rc;
 616                 if (i != -1)
 617                 {
 618                     rc.left = LVIR_BOUNDS;
 619                     SendMessageW(g_pChildWnd->hListWnd, LVM_GETITEMRECT, i, (LPARAM) &rc);
 620                     pt.x = rc.left + 8;
 621                     pt.y = rc.top + 8;
 622                 }
 623                 else
 624                     pt.x = pt.y = 0;
 625                 ClientToScreen(g_pChildWnd->hListWnd, &pt);
 626             }
 627             if(i == -1)
 628             {
 629                 TrackPopupMenu(GetSubMenu(hPopupMenus, PM_NEW), TPM_RIGHTBUTTON, pt.x, pt.y, 0, hFrameWnd, NULL);
 630             }
 631             else
 632             {
 633                 HMENU mnu = GetSubMenu(hPopupMenus, PM_MODIFYVALUE);
 634                 SetMenuDefaultItem(mnu, ID_EDIT_MODIFY, MF_BYCOMMAND);
 635                 IsDefault = IsDefaultValue(g_pChildWnd->hListWnd, i);
 636                 if(cnt == 1)
 637                     EnableMenuItem(mnu, ID_EDIT_RENAME, MF_BYCOMMAND | (IsDefault ? MF_DISABLED | MF_GRAYED : MF_ENABLED));
 638                 else
 639                     EnableMenuItem(mnu, ID_EDIT_RENAME, MF_BYCOMMAND | MF_DISABLED | MF_GRAYED);
 640                 EnableMenuItem(mnu, ID_EDIT_MODIFY, MF_BYCOMMAND | (cnt == 1 ? MF_ENABLED : MF_DISABLED | MF_GRAYED));
 641                 EnableMenuItem(mnu, ID_EDIT_MODIFY_BIN, MF_BYCOMMAND | (cnt == 1 ? MF_ENABLED : MF_DISABLED | MF_GRAYED));
 642
 643                 TrackPopupMenu(mnu, TPM_RIGHTBUTTON, pt.x, pt.y, 0, hFrameWnd, NULL);
 644             }
 645         }
 646         else if ((HWND)wParam == g_pChildWnd->hTreeWnd)
 647         {
 648             TVHITTESTINFO hti;
 649             HMENU hContextMenu;
 650             TVITEM item;
 651             MENUITEMINFO mii;
 652             WCHAR resource[256];
 653             WCHAR buffer[256];
 654             LPWSTR s;
 655             LPCWSTR keyPath;
 656             HKEY hRootKey;
 657             int iLastPos;
 658             WORD wID;
 659
 660             pt.x = (short) LOWORD(lParam);
 661             pt.y = (short) HIWORD(lParam);
 662
 663             if (pt.x == -1 && pt.y == -1)
 664             {
 665                 RECT rc;
 666                 hti.hItem = TreeView_GetSelection(g_pChildWnd->hTreeWnd);
 667                 if (hti.hItem != NULL)
 668                 {
 669                     TreeView_GetItemRect(g_pChildWnd->hTreeWnd, hti.hItem, &rc, TRUE);
 670                     pt.x = rc.left + 8;
 671                     pt.y = rc.top + 8;
 672                     ClientToScreen(g_pChildWnd->hTreeWnd, &pt);
 673                     hti.flags = TVHT_ONITEM;
 674                 }
 675                 else
 676                     hti.flags = 0;
 677             }
 678             else
 679             {
 680                 hti.pt.x = pt.x;
 681                 hti.pt.y = pt.y;
 682                 ScreenToClient(g_pChildWnd->hTreeWnd, &hti.pt);
 683                 (void)TreeView_HitTest(g_pChildWnd->hTreeWnd, &hti);
 684             }
 685
 686             if (hti.flags & TVHT_ONITEM)
 687             {
 688                 hContextMenu = GetSubMenu(hPopupMenus, PM_TREECONTEXT);
 689                 (void)TreeView_SelectItem(g_pChildWnd->hTreeWnd, hti.hItem);
 690
 691                 memset(&item, 0, sizeof(item));
 692                 item.mask = TVIF_STATE | TVIF_CHILDREN;
 693                 item.hItem = hti.hItem;
 694                 (void)TreeView_GetItem(g_pChildWnd->hTreeWnd, &item);
 695
 696                 /* Set the Expand/Collapse menu item appropriately */
 697                 LoadStringW(hInst, (item.state & TVIS_EXPANDED) ? IDS_COLLAPSE : IDS_EXPAND, buffer, COUNT_OF(buffer));
 698                 memset(&mii, 0, sizeof(mii));
 699                 mii.cbSize = sizeof(mii);
 700                 mii.fMask = MIIM_STRING | MIIM_STATE | MIIM_ID;
 701                 mii.fState = (item.cChildren > 0) ? MFS_DEFAULT : MFS_GRAYED;
 702                 mii.wID = (item.state & TVIS_EXPANDED) ? ID_TREE_COLLAPSEBRANCH : ID_TREE_EXPANDBRANCH;
 703                 mii.dwTypeData = (LPWSTR) buffer;
 704                 SetMenuItemInfo(hContextMenu, 0, TRUE, &mii);
 705
 706                 /* Remove any existing suggestions */
 707                 memset(&mii, 0, sizeof(mii));
 708                 mii.cbSize = sizeof(mii);
 709                 mii.fMask = MIIM_ID;
 710                 GetMenuItemInfo(hContextMenu, GetMenuItemCount(hContextMenu) - 1, TRUE, &mii);
 711                 if ((mii.wID >= ID_TREE_SUGGESTION_MIN) && (mii.wID <= ID_TREE_SUGGESTION_MAX))
 712                 {
 713                     do
 714                     {
 715                         iLastPos = GetMenuItemCount(hContextMenu) - 1;
 716                         GetMenuItemInfo(hContextMenu, iLastPos, TRUE, &mii);
 717                         RemoveMenu(hContextMenu, iLastPos, MF_BYPOSITION);
 718                     }
 719                     while((mii.wID >= ID_TREE_SUGGESTION_MIN) && (mii.wID <= ID_TREE_SUGGESTION_MAX));
 720                 }
 721
 722                 /* Come up with suggestions */
 723                 keyPath = GetItemPath(g_pChildWnd->hTreeWnd, NULL, &hRootKey);
 724                 SuggestKeys(hRootKey, keyPath, Suggestions, COUNT_OF(Suggestions));
 725                 if (Suggestions[0])
 726                 {
 727                     AppendMenu(hContextMenu, MF_SEPARATOR, 0, NULL);
 728
 729                     LoadStringW(hInst, IDS_GOTO_SUGGESTED_KEY, resource, COUNT_OF(resource));
 730
 731                     s = Suggestions;
 732                     wID = ID_TREE_SUGGESTION_MIN;
 733                     while(*s && (wID <= ID_TREE_SUGGESTION_MAX))
 734                     {
 735                         _snwprintf(buffer, COUNT_OF(buffer), resource, s);
 736
 737                         memset(&mii, 0, sizeof(mii));
 738                         mii.cbSize = sizeof(mii);
 739                         mii.fMask = MIIM_STRING | MIIM_ID;
 740                         mii.wID = wID++;
 741                         mii.dwTypeData = buffer;
 742                         InsertMenuItem(hContextMenu, GetMenuItemCount(hContextMenu), TRUE, &mii);
 743
 744                         s += wcslen(s) + 1;
 745                     }
 746                 }
 747                 TrackPopupMenu(hContextMenu, TPM_RIGHTBUTTON, pt.x, pt.y, 0, g_pChildWnd->hWnd, NULL);
 748             }
 749         }
 750         break;
 751     }
 752
 753     case WM_SIZE:
 754         if (wParam != SIZE_MINIMIZED && g_pChildWnd != NULL)
 755         {
 756             ResizeWnd(LOWORD(lParam), HIWORD(lParam));
 757         }
 758         /* fall through */
 759     default:
 760 def:
 761         return DefWindowProcW(hWnd, message, wParam, lParam);
 762     }
 763     return 0;
 764 }