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"UNKNOWN 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 = 22;
  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 - 2*tHeight, tHeight, SWP_NOZORDER|SWP_NOACTIVATE);
  56     DeferWindowPos(hdwp, g_pChildWnd->hAddressBtnWnd, 0, rt.right - 2*tHeight, rt.top, 2*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                         lstrcpynW(pszSuggestions, L"HKCR\\", (int) iSuggestionsLength);
 244                         i = wcslen(pszSuggestions);
 245                         pszSuggestions += i;
 246                         iSuggestionsLength -= i;
 247
 248                         lstrcpynW(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                 lstrcpynW(pszSuggestions, L"HKCR\\CLSID\\", (int)iSuggestionsLength);
 270                 i = wcslen(pszSuggestions);
 271                 pszSuggestions += i;
 272                 iSuggestionsLength -= i;
 273
 274                 lstrcpynW(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, GWLP_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 CallWindowProcW(oldwndproc, hwnd, uMsg, wParam, lParam);
 304 }
 305
 306 static VOID
 307 UpdateAddress(HTREEITEM hItem, HKEY hRootKey, LPCWSTR pszPath)
 308 {
 309     LPCWSTR keyPath, rootName;
 310     LPWSTR fullPath;
 311
 312     if (pszPath == NULL)
 313         keyPath = GetItemPath(g_pChildWnd->hTreeWnd, hItem, &hRootKey);
 314     else
 315         keyPath = pszPath;
 316
 317     if (keyPath)
 318     {
 319         RefreshListView(g_pChildWnd->hListWnd, hRootKey, keyPath);
 320         rootName = get_root_key_name(hRootKey);
 321         fullPath = HeapAlloc(GetProcessHeap(), 0, (wcslen(rootName) + 1 + wcslen(keyPath) + 1) * sizeof(WCHAR));
 322         if (fullPath)
 323         {
 324             /* set (correct) the address bar text */
 325             if (keyPath[0] != L'\0')
 326                 swprintf(fullPath, L"%s\\%s", rootName, keyPath);
 327             else
 328                 fullPath = wcscpy(fullPath, rootName);
 329             SendMessageW(hStatusBar, SB_SETTEXTW, 0, (LPARAM)fullPath);
 330             SendMessageW(g_pChildWnd->hAddressBarWnd, WM_SETTEXT, 0, (LPARAM)fullPath);
 331             HeapFree(GetProcessHeap(), 0, fullPath);
 332             /* disable hive manipulation items temporarily (enable only if necessary) */
 333             EnableMenuItem(GetSubMenu(hMenuFrame,0), ID_REGISTRY_LOADHIVE, MF_BYCOMMAND | MF_GRAYED);
 334             EnableMenuItem(GetSubMenu(hMenuFrame,0), ID_REGISTRY_UNLOADHIVE, MF_BYCOMMAND | MF_GRAYED);
 335             /* compare the strings to see if we should enable/disable the "Load Hive" menus accordingly */
 336             if (!(_wcsicmp(rootName, L"HKEY_LOCAL_MACHINE") &&
 337                   _wcsicmp(rootName, L"HKEY_USERS")))
 338             {
 339                 /*
 340                  * enable the unload menu item if at the root, otherwise
 341                  * enable the load menu item if there is no slash in
 342                  * keyPath (ie. immediate child selected)
 343                  */
 344                 if(keyPath[0] == L'\0')
 345                     EnableMenuItem(GetSubMenu(hMenuFrame,0), ID_REGISTRY_LOADHIVE, MF_BYCOMMAND | MF_ENABLED);
 346                 else if(!wcschr(keyPath, L'\\'))
 347                     EnableMenuItem(GetSubMenu(hMenuFrame,0), ID_REGISTRY_UNLOADHIVE, MF_BYCOMMAND | MF_ENABLED);
 348             }
 349         }
 350     }
 351 }
 352
 353 /*******************************************************************************
 354  *
 355  *  FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
 356  *
 357  *  PURPOSE:  Processes messages for the child windows.
 358  *
 359  *  WM_COMMAND  - process the application menu
 360  *  WM_PAINT    - Paint the main window
 361  *  WM_DESTROY  - post a quit message and return
 362  *
 363  */
 364 LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 365 {
 366     BOOL Result;
 367
 368     switch (message)
 369     {
 370     case WM_CREATE:
 371     {
 372         WNDPROC oldproc;
 373         HFONT hFont;
 374         WCHAR buffer[MAX_PATH];
 375
 376         /* Load "My Computer" string */
 377         LoadStringW(hInst, IDS_MY_COMPUTER, buffer, COUNT_OF(buffer));
 378
 379         g_pChildWnd = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ChildWnd));
 380         if (!g_pChildWnd) return 0;
 381
 382         wcsncpy(g_pChildWnd->szPath, buffer, MAX_PATH);
 383         g_pChildWnd->nSplitPos = 250;
 384         g_pChildWnd->hWnd = hWnd;
 385         g_pChildWnd->hAddressBarWnd = CreateWindowExW(WS_EX_CLIENTEDGE, L"Edit", NULL, WS_CHILD | WS_VISIBLE | WS_CHILDWINDOW | WS_TABSTOP,
 386                                                       CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
 387                                                       hWnd, (HMENU)0, hInst, 0);
 388         g_pChildWnd->hAddressBtnWnd = CreateWindowExW(0, L"Button", L"»", WS_CHILD | WS_VISIBLE | WS_CHILDWINDOW | WS_TABSTOP | BS_TEXT | BS_CENTER | BS_VCENTER | BS_FLAT | BS_DEFPUSHBUTTON,
 389                                                       CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
 390                                                       hWnd, (HMENU)0, hInst, 0);
 391         g_pChildWnd->hTreeWnd = CreateTreeView(hWnd, g_pChildWnd->szPath, (HMENU) TREE_WINDOW);
 392         g_pChildWnd->hListWnd = CreateListView(hWnd, (HMENU) LIST_WINDOW/*, g_pChildWnd->szPath*/);
 393         SetFocus(g_pChildWnd->hTreeWnd);
 394
 395         /* set the address bar and button font */
 396         if ((g_pChildWnd->hAddressBarWnd) && (g_pChildWnd->hAddressBtnWnd))
 397         {
 398             hFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
 399             SendMessageW(g_pChildWnd->hAddressBarWnd,
 400                          WM_SETFONT,
 401                          (WPARAM)hFont,
 402                          0);
 403             SendMessageW(g_pChildWnd->hAddressBtnWnd,
 404                          WM_SETFONT,
 405                          (WPARAM)hFont,
 406                          0);
 407         }
 408         /* Subclass the AddressBar */
 409         oldproc = (WNDPROC)(LONG_PTR)GetWindowLongPtr(g_pChildWnd->hAddressBarWnd, GWLP_WNDPROC);
 410         SetWindowLongPtr(g_pChildWnd->hAddressBarWnd, GWLP_USERDATA, (DWORD_PTR)oldproc);
 411         SetWindowLongPtr(g_pChildWnd->hAddressBarWnd, GWLP_WNDPROC, (DWORD_PTR)AddressBarProc);
 412         break;
 413     }
 414     case WM_COMMAND:
 415         if(HIWORD(wParam) == BN_CLICKED)
 416         {
 417             PostMessageW(g_pChildWnd->hAddressBarWnd, WM_KEYUP, VK_RETURN, 0);
 418         }
 419
 420         if (!_CmdWndProc(hWnd, message, wParam, lParam))
 421         {
 422             goto def;
 423         }
 424         break;
 425     case WM_PAINT:
 426         OnPaint(hWnd);
 427         return 0;
 428     case WM_SETCURSOR:
 429         if (LOWORD(lParam) == HTCLIENT)
 430         {
 431             POINT pt;
 432             GetCursorPos(&pt);
 433             ScreenToClient(hWnd, &pt);
 434             if (pt.x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1)
 435             {
 436                 SetCursor(LoadCursorW(0, IDC_SIZEWE));
 437                 return TRUE;
 438             }
 439         }
 440         goto def;
 441     case WM_DESTROY:
 442         DestroyListView(g_pChildWnd->hListWnd);
 443         DestroyTreeView(g_pChildWnd->hTreeWnd);
 444         DestroyMainMenu();
 445         HeapFree(GetProcessHeap(), 0, g_pChildWnd);
 446         g_pChildWnd = NULL;
 447         PostQuitMessage(0);
 448         break;
 449     case WM_LBUTTONDOWN:
 450     {
 451         RECT rt;
 452         int x = (short)LOWORD(lParam);
 453         GetClientRect(hWnd, &rt);
 454         if (x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1)
 455         {
 456             last_split = g_pChildWnd->nSplitPos;
 457             draw_splitbar(hWnd, last_split);
 458             SetCapture(hWnd);
 459         }
 460         break;
 461     }
 462
 463     case WM_LBUTTONUP:
 464     case WM_RBUTTONDOWN:
 465         if (GetCapture() == hWnd)
 466         {
 467             finish_splitbar(hWnd, LOWORD(lParam));
 468         }
 469         break;
 470
 471     case WM_CAPTURECHANGED:
 472         if (GetCapture()==hWnd && last_split>=0)
 473             draw_splitbar(hWnd, last_split);
 474         break;
 475
 476     case WM_KEYDOWN:
 477         if (wParam == VK_ESCAPE)
 478             if (GetCapture() == hWnd)
 479             {
 480                 RECT rt;
 481                 draw_splitbar(hWnd, last_split);
 482                 GetClientRect(hWnd, &rt);
 483                 ResizeWnd(rt.right, rt.bottom);
 484                 last_split = -1;
 485                 ReleaseCapture();
 486                 SetCursor(LoadCursorW(0, IDC_ARROW));
 487             }
 488         break;
 489
 490     case WM_MOUSEMOVE:
 491         if (GetCapture() == hWnd)
 492         {
 493             HDC hdc;
 494             RECT rt;
 495             HGDIOBJ OldObj;
 496             int x = LOWORD(lParam);
 497             if(!SizingPattern)
 498             {
 499                 const DWORD Pattern[4] = {0x5555AAAA, 0x5555AAAA, 0x5555AAAA, 0x5555AAAA};
 500                 SizingPattern = CreateBitmap(8, 8, 1, 1, Pattern);
 501             }
 502             if(!SizingBrush)
 503             {
 504                 SizingBrush = CreatePatternBrush(SizingPattern);
 505             }
 506
 507             GetClientRect(hWnd, &rt);
 508             x = (SHORT) min(max(x, SPLIT_MIN), rt.right - SPLIT_MIN);
 509             if(last_split != x)
 510             {
 511                 rt.left = last_split-SPLIT_WIDTH/2;
 512                 rt.right = last_split+SPLIT_WIDTH/2+1;
 513                 hdc = GetDC(hWnd);
 514                 OldObj = SelectObject(hdc, SizingBrush);
 515                 PatBlt(hdc, rt.left, rt.top, rt.right - rt.left, rt.bottom - rt.top, PATINVERT);
 516                 last_split = x;
 517                 rt.left = x-SPLIT_WIDTH/2;
 518                 rt.right = x+SPLIT_WIDTH/2+1;
 519                 PatBlt(hdc, rt.left, rt.top, rt.right - rt.left, rt.bottom - rt.top, PATINVERT);
 520                 SelectObject(hdc, OldObj);
 521                 ReleaseDC(hWnd, hdc);
 522             }
 523         }
 524         break;
 525
 526     case WM_SETFOCUS:
 527         if (g_pChildWnd != NULL)
 528         {
 529             SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 530         }
 531         break;
 532
 533     case WM_TIMER:
 534         break;
 535
 536     case WM_NOTIFY:
 537         if ((int)wParam == TREE_WINDOW && g_pChildWnd != NULL)
 538         {
 539             switch (((LPNMHDR)lParam)->code)
 540             {
 541             case TVN_ITEMEXPANDING:
 542                 return !OnTreeExpanding(g_pChildWnd->hTreeWnd, (NMTREEVIEW*)lParam);
 543             case TVN_SELCHANGED:
 544             {
 545                 NMTREEVIEW* pnmtv = (NMTREEVIEW*)lParam;
 546                 /* Get the parent of the current item */
 547                 HTREEITEM hParentItem = TreeView_GetParent(g_pChildWnd->hTreeWnd, pnmtv->itemNew.hItem);
 548
 549                 UpdateAddress(pnmtv->itemNew.hItem, NULL, NULL);
 550
 551                 /*
 552                  * Disable Delete/Rename menu options for 'My Computer' (first item so doesn't have any parent)
 553                  * and HKEY_* keys (their parent is 'My Computer' and the previous remark applies).
 554                  */
 555                 if (!hParentItem || !TreeView_GetParent(g_pChildWnd->hTreeWnd, hParentItem))
 556                 {
 557                     EnableMenuItem(hMenuFrame , ID_EDIT_DELETE, MF_BYCOMMAND | MF_GRAYED);
 558                     EnableMenuItem(hMenuFrame , ID_EDIT_RENAME, MF_BYCOMMAND | MF_GRAYED);
 559                     EnableMenuItem(hPopupMenus, ID_TREE_DELETE, MF_BYCOMMAND | MF_GRAYED);
 560                     EnableMenuItem(hPopupMenus, ID_TREE_RENAME, MF_BYCOMMAND | MF_GRAYED);
 561                 }
 562                 else
 563                 {
 564                     EnableMenuItem(hMenuFrame , ID_EDIT_DELETE, MF_BYCOMMAND | MF_ENABLED);
 565                     EnableMenuItem(hMenuFrame , ID_EDIT_RENAME, MF_BYCOMMAND | MF_ENABLED);
 566                     EnableMenuItem(hPopupMenus, ID_TREE_DELETE, MF_BYCOMMAND | MF_ENABLED);
 567                     EnableMenuItem(hPopupMenus, ID_TREE_RENAME, MF_BYCOMMAND | MF_ENABLED);
 568                 }
 569
 570                 break;
 571             }
 572             case NM_SETFOCUS:
 573                 g_pChildWnd->nFocusPanel = 0;
 574                 break;
 575             case TVN_BEGINLABELEDIT:
 576             {
 577                 LPNMTVDISPINFO ptvdi;
 578                 /* cancel label edit for rootkeys  */
 579                 ptvdi = (LPNMTVDISPINFO) lParam;
 580                 if (!TreeView_GetParent(g_pChildWnd->hTreeWnd, ptvdi->item.hItem) ||
 581                     !TreeView_GetParent(g_pChildWnd->hTreeWnd, TreeView_GetParent(g_pChildWnd->hTreeWnd, ptvdi->item.hItem)))
 582                     return TRUE;
 583                 break;
 584             }
 585             case TVN_ENDLABELEDIT:
 586             {
 587                 LPCWSTR keyPath;
 588                 HKEY hRootKey;
 589                 HKEY hKey = NULL;
 590                 LPNMTVDISPINFO ptvdi;
 591                 LONG lResult = TRUE;
 592                 WCHAR szBuffer[MAX_PATH];
 593
 594                 ptvdi = (LPNMTVDISPINFO) lParam;
 595                 if (ptvdi->item.pszText)
 596                 {
 597                     keyPath = GetItemPath(g_pChildWnd->hTreeWnd, TreeView_GetParent(g_pChildWnd->hTreeWnd, ptvdi->item.hItem), &hRootKey);
 598                     _snwprintf(szBuffer, COUNT_OF(szBuffer), L"%s\\%s", keyPath, ptvdi->item.pszText);
 599                     keyPath = GetItemPath(g_pChildWnd->hTreeWnd, ptvdi->item.hItem, &hRootKey);
 600                     if (RegOpenKeyExW(hRootKey, szBuffer, 0, KEY_READ, &hKey) == ERROR_SUCCESS)
 601                     {
 602                         lResult = FALSE;
 603                         RegCloseKey(hKey);
 604                         (void)TreeView_EditLabel(g_pChildWnd->hTreeWnd, ptvdi->item.hItem);
 605                     }
 606                     else
 607                     {
 608                         if (RenameKey(hRootKey, keyPath, ptvdi->item.pszText) != ERROR_SUCCESS)
 609                             lResult = FALSE;
 610                         else
 611                             UpdateAddress(ptvdi->item.hItem, hRootKey, szBuffer);
 612                     }
 613                     return lResult;
 614                 }
 615             }
 616             default:
 617                 return 0;
 618             }
 619         }
 620         else
 621         {
 622             if ((int)wParam == LIST_WINDOW && g_pChildWnd != NULL)
 623             {
 624                 switch (((LPNMHDR)lParam)->code)
 625                 {
 626                 case NM_SETFOCUS:
 627                     g_pChildWnd->nFocusPanel = 1;
 628                     break;
 629                 default:
 630                     if(!ListWndNotifyProc(g_pChildWnd->hListWnd, wParam, lParam, &Result))
 631                     {
 632                         goto def;
 633                     }
 634                     return Result;
 635                     break;
 636                 }
 637             }
 638         }
 639         break;
 640
 641     case WM_CONTEXTMENU:
 642     {
 643         POINT pt;
 644         if((HWND)wParam == g_pChildWnd->hListWnd)
 645         {
 646             int i, cnt;
 647             BOOL IsDefault;
 648             pt.x = (short) LOWORD(lParam);
 649             pt.y = (short) HIWORD(lParam);
 650             cnt = ListView_GetSelectedCount(g_pChildWnd->hListWnd);
 651             i = ListView_GetNextItem(g_pChildWnd->hListWnd, -1, LVNI_FOCUSED | LVNI_SELECTED);
 652             if (pt.x == -1 && pt.y == -1)
 653             {
 654                 RECT rc;
 655                 if (i != -1)
 656                 {
 657                     rc.left = LVIR_BOUNDS;
 658                     SendMessageW(g_pChildWnd->hListWnd, LVM_GETITEMRECT, i, (LPARAM) &rc);
 659                     pt.x = rc.left + 8;
 660                     pt.y = rc.top + 8;
 661                 }
 662                 else
 663                     pt.x = pt.y = 0;
 664                 ClientToScreen(g_pChildWnd->hListWnd, &pt);
 665             }
 666             if(i == -1)
 667             {
 668                 TrackPopupMenu(GetSubMenu(hPopupMenus, PM_NEW), TPM_RIGHTBUTTON, pt.x, pt.y, 0, hFrameWnd, NULL);
 669             }
 670             else
 671             {
 672                 HMENU mnu = GetSubMenu(hPopupMenus, PM_MODIFYVALUE);
 673                 SetMenuDefaultItem(mnu, ID_EDIT_MODIFY, MF_BYCOMMAND);
 674                 IsDefault = IsDefaultValue(g_pChildWnd->hListWnd, i);
 675                 if(cnt == 1)
 676                     EnableMenuItem(mnu, ID_EDIT_RENAME, MF_BYCOMMAND | (IsDefault ? MF_DISABLED | MF_GRAYED : MF_ENABLED));
 677                 else
 678                     EnableMenuItem(mnu, ID_EDIT_RENAME, MF_BYCOMMAND | MF_DISABLED | MF_GRAYED);
 679                 EnableMenuItem(mnu, ID_EDIT_MODIFY, MF_BYCOMMAND | (cnt == 1 ? MF_ENABLED : MF_DISABLED | MF_GRAYED));
 680                 EnableMenuItem(mnu, ID_EDIT_MODIFY_BIN, MF_BYCOMMAND | (cnt == 1 ? MF_ENABLED : MF_DISABLED | MF_GRAYED));
 681
 682                 TrackPopupMenu(mnu, TPM_RIGHTBUTTON, pt.x, pt.y, 0, hFrameWnd, NULL);
 683             }
 684         }
 685         else if ((HWND)wParam == g_pChildWnd->hTreeWnd)
 686         {
 687             TVHITTESTINFO hti;
 688             HMENU hContextMenu;
 689             TVITEMW item;
 690             MENUITEMINFOW mii;
 691             WCHAR resource[256];
 692             WCHAR buffer[256];
 693             LPWSTR s;
 694             LPCWSTR keyPath;
 695             HKEY hRootKey;
 696             int iLastPos;
 697             WORD wID;
 698
 699             pt.x = (short) LOWORD(lParam);
 700             pt.y = (short) HIWORD(lParam);
 701
 702             if (pt.x == -1 && pt.y == -1)
 703             {
 704                 RECT rc;
 705                 hti.hItem = TreeView_GetSelection(g_pChildWnd->hTreeWnd);
 706                 if (hti.hItem != NULL)
 707                 {
 708                     TreeView_GetItemRect(g_pChildWnd->hTreeWnd, hti.hItem, &rc, TRUE);
 709                     pt.x = rc.left + 8;
 710                     pt.y = rc.top + 8;
 711                     ClientToScreen(g_pChildWnd->hTreeWnd, &pt);
 712                     hti.flags = TVHT_ONITEM;
 713                 }
 714                 else
 715                     hti.flags = 0;
 716             }
 717             else
 718             {
 719                 hti.pt.x = pt.x;
 720                 hti.pt.y = pt.y;
 721                 ScreenToClient(g_pChildWnd->hTreeWnd, &hti.pt);
 722                 (void)TreeView_HitTest(g_pChildWnd->hTreeWnd, &hti);
 723             }
 724
 725             if (hti.flags & TVHT_ONITEM)
 726             {
 727                 hContextMenu = GetSubMenu(hPopupMenus, PM_TREECONTEXT);
 728                 (void)TreeView_SelectItem(g_pChildWnd->hTreeWnd, hti.hItem);
 729
 730                 memset(&item, 0, sizeof(item));
 731                 item.mask = TVIF_STATE | TVIF_CHILDREN;
 732                 item.hItem = hti.hItem;
 733                 (void)TreeView_GetItem(g_pChildWnd->hTreeWnd, &item);
 734
 735                 /* Set the Expand/Collapse menu item appropriately */
 736                 LoadStringW(hInst, (item.state & TVIS_EXPANDED) ? IDS_COLLAPSE : IDS_EXPAND, buffer, COUNT_OF(buffer));
 737                 memset(&mii, 0, sizeof(mii));
 738                 mii.cbSize = sizeof(mii);
 739                 mii.fMask = MIIM_STRING | MIIM_STATE | MIIM_ID;
 740                 mii.fState = (item.cChildren > 0) ? MFS_DEFAULT : MFS_GRAYED;
 741                 mii.wID = (item.state & TVIS_EXPANDED) ? ID_TREE_COLLAPSEBRANCH : ID_TREE_EXPANDBRANCH;
 742                 mii.dwTypeData = (LPWSTR) buffer;
 743                 SetMenuItemInfo(hContextMenu, 0, TRUE, &mii);
 744
 745                 /* Remove any existing suggestions */
 746                 memset(&mii, 0, sizeof(mii));
 747                 mii.cbSize = sizeof(mii);
 748                 mii.fMask = MIIM_ID;
 749                 GetMenuItemInfo(hContextMenu, GetMenuItemCount(hContextMenu) - 1, TRUE, &mii);
 750                 if ((mii.wID >= ID_TREE_SUGGESTION_MIN) && (mii.wID <= ID_TREE_SUGGESTION_MAX))
 751                 {
 752                     do
 753                     {
 754                         iLastPos = GetMenuItemCount(hContextMenu) - 1;
 755                         GetMenuItemInfo(hContextMenu, iLastPos, TRUE, &mii);
 756                         RemoveMenu(hContextMenu, iLastPos, MF_BYPOSITION);
 757                     }
 758                     while((mii.wID >= ID_TREE_SUGGESTION_MIN) && (mii.wID <= ID_TREE_SUGGESTION_MAX));
 759                 }
 760
 761                 /* Come up with suggestions */
 762                 keyPath = GetItemPath(g_pChildWnd->hTreeWnd, NULL, &hRootKey);
 763                 SuggestKeys(hRootKey, keyPath, Suggestions, COUNT_OF(Suggestions));
 764                 if (Suggestions[0])
 765                 {
 766                     AppendMenu(hContextMenu, MF_SEPARATOR, 0, NULL);
 767
 768                     LoadStringW(hInst, IDS_GOTO_SUGGESTED_KEY, resource, COUNT_OF(resource));
 769
 770                     s = Suggestions;
 771                     wID = ID_TREE_SUGGESTION_MIN;
 772                     while(*s && (wID <= ID_TREE_SUGGESTION_MAX))
 773                     {
 774                         _snwprintf(buffer, COUNT_OF(buffer), resource, s);
 775
 776                         memset(&mii, 0, sizeof(mii));
 777                         mii.cbSize = sizeof(mii);
 778                         mii.fMask = MIIM_STRING | MIIM_ID;
 779                         mii.wID = wID++;
 780                         mii.dwTypeData = buffer;
 781                         InsertMenuItem(hContextMenu, GetMenuItemCount(hContextMenu), TRUE, &mii);
 782
 783                         s += wcslen(s) + 1;
 784                     }
 785                 }
 786                 TrackPopupMenu(hContextMenu, TPM_RIGHTBUTTON, pt.x, pt.y, 0, g_pChildWnd->hWnd, NULL);
 787             }
 788         }
 789         break;
 790     }
 791
 792     case WM_SIZE:
 793         if (wParam != SIZE_MINIMIZED && g_pChildWnd != NULL)
 794         {
 795             ResizeWnd(LOWORD(lParam), HIWORD(lParam));
 796         }
 797         /* fall through */
 798     default:
 799 def:
 800         return DefWindowProcW(hWnd, message, wParam, lParam);
 801     }
 802     return 0;
 803 }