programs/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 St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define WIN32_LEAN_AND_MEAN     /* Exclude rarely-used stuff from Windows headers */
  22 #include <windows.h>
  23 #include <commctrl.h>
  24 #include <stdio.h>
  25
  26 #include "main.h"
  27 #include "regproc.h"
  28
  29 #include "wine/debug.h"
  30 #include "wine/unicode.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(regedit);
  33
  34 ChildWnd* g_pChildWnd;
  35 static int last_split;
  36
  37 static const WCHAR wszLastKey[] = {'L','a','s','t','K','e','y',0};
  38 static const WCHAR wszKeyName[] = {'S','o','f','t','w','a','r','e','\\',
  39                                    'M','i','c','r','o','s','o','f','t','\\',
  40                                    'W','i','n','d','o','w','s','\\',
  41                                    'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  42                                    'A','p','p','l','e','t','s','\\','R','e','g','e','d','i','t',0};
  43
  44 /*******************************************************************************
  45  * Local module support methods
  46  */
  47
  48 static LPCWSTR GetRootKeyName(HKEY hRootKey)
  49 {
  50     if(hRootKey == HKEY_CLASSES_ROOT)
  51         return reg_class_namesW[INDEX_HKEY_CLASSES_ROOT];
  52     if(hRootKey == HKEY_CURRENT_USER)
  53         return reg_class_namesW[INDEX_HKEY_CURRENT_USER];
  54     if(hRootKey == HKEY_LOCAL_MACHINE)
  55         return reg_class_namesW[INDEX_HKEY_LOCAL_MACHINE];
  56     if(hRootKey == HKEY_USERS)
  57         return reg_class_namesW[INDEX_HKEY_USERS];
  58     if(hRootKey == HKEY_CURRENT_CONFIG)
  59         return reg_class_namesW[INDEX_HKEY_CURRENT_CONFIG];
  60     if(hRootKey == HKEY_DYN_DATA)
  61         return reg_class_namesW[INDEX_HKEY_DYN_DATA];
  62     else
  63     {
  64         static const WCHAR unknown_key[] = {'U','N','K','N','O','W','N',' ','H','K','E','Y',',',' ',
  65                                             'P','L','E','A','S','E',' ','R','E','P','O','R','T',0};
  66         return unknown_key;
  67     }
  68 }
  69
  70 static void draw_splitbar(HWND hWnd, int x)
  71 {
  72     RECT rt;
  73     HDC hdc = GetDC(hWnd);
  74
  75     GetClientRect(hWnd, &rt);
  76     rt.left = x - SPLIT_WIDTH/2;
  77     rt.right = x + SPLIT_WIDTH/2+1;
  78     InvertRect(hdc, &rt);
  79     ReleaseDC(hWnd, hdc);
  80 }
  81
  82 static void ResizeWnd(int cx, int cy)
  83 {
  84     HDWP hdwp = BeginDeferWindowPos(2);
  85     RECT rt = {0, 0, cx, cy};
  86
  87     cx = g_pChildWnd->nSplitPos + SPLIT_WIDTH/2;
  88     DeferWindowPos(hdwp, g_pChildWnd->hTreeWnd, 0, rt.left, rt.top, g_pChildWnd->nSplitPos-SPLIT_WIDTH/2-rt.left, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
  89     DeferWindowPos(hdwp, g_pChildWnd->hListWnd, 0, rt.left+cx  , rt.top, rt.right-cx, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
  90     EndDeferWindowPos(hdwp);
  91 }
  92
  93 static void OnPaint(HWND hWnd)
  94 {
  95     PAINTSTRUCT ps;
  96     RECT rt;
  97
  98     GetClientRect(hWnd, &rt);
  99     BeginPaint(hWnd, &ps);
 100     FillRect(ps.hdc, &rt, GetSysColorBrush(COLOR_BTNFACE));
 101     EndPaint(hWnd, &ps);
 102 }
 103
 104 static LPWSTR CombinePaths(LPCWSTR pPaths[], int nPaths) {
 105     int i, len, pos;
 106     LPWSTR combined;
 107     for (i=0, len=0; i<nPaths; i++) {
 108         if (pPaths[i] && *pPaths[i]) {
 109             len += lstrlenW(pPaths[i])+1;
 110         }
 111     }
 112     combined = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 113     *combined = '\0';
 114     for (i=0, pos=0; i<nPaths; i++) {
 115         if (pPaths[i] && *pPaths[i]) {
 116             int llen = lstrlenW(pPaths[i]);
 117             if (!*combined)
 118                 lstrcpyW(combined, pPaths[i]);
 119             else {
 120                 combined[pos++] = '\\';
 121                 lstrcpyW(combined+pos, pPaths[i]);
 122             }
 123             pos += llen;
 124         }
 125     }
 126     return combined;
 127 }
 128
 129 static LPWSTR GetPathRoot(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 130     LPCWSTR parts[2] = {0,0};
 131     WCHAR text[260];
 132     HKEY hRootKey = NULL;
 133     if (!hItem)
 134         hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0);
 135     HeapFree(GetProcessHeap(), 0, GetItemPath(hwndTV, hItem, &hRootKey));
 136     if (!bFull && !hRootKey)
 137         return NULL;
 138     if (hRootKey)
 139         parts[1] = GetRootKeyName(hRootKey);
 140     if (bFull) {
 141         DWORD dwSize = sizeof(text)/sizeof(WCHAR);
 142         GetComputerNameW(text, &dwSize);
 143         parts[0] = text;
 144     }
 145     return CombinePaths(parts, 2);
 146 }
 147
 148 LPWSTR GetItemFullPath(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 149     LPWSTR parts[2];
 150     LPWSTR ret;
 151     HKEY hRootKey = NULL;
 152
 153     parts[0] = GetPathRoot(hwndTV, hItem, bFull);
 154     parts[1] = GetItemPath(hwndTV, hItem, &hRootKey);
 155     ret = CombinePaths((LPCWSTR *)parts, 2);
 156     HeapFree(GetProcessHeap(), 0, parts[0]);
 157     HeapFree(GetProcessHeap(), 0, parts[1]);
 158     return ret;
 159 }
 160
 161 static LPWSTR GetPathFullPath(HWND hwndTV, LPWSTR path) {
 162     LPWSTR parts[2];
 163     LPWSTR ret;
 164
 165     parts[0] = GetPathRoot(hwndTV, 0, TRUE);
 166     parts[1] = path;
 167     ret = CombinePaths((LPCWSTR*)parts, 2);
 168     HeapFree(GetProcessHeap(), 0, parts[0]);
 169     return ret;
 170 }
 171
 172 static void OnTreeSelectionChanged(HWND hwndTV, HWND hwndLV, HTREEITEM hItem, BOOL bRefreshLV)
 173 {
 174     if (bRefreshLV) {
 175         LPWSTR keyPath;
 176         HKEY hRootKey = NULL;
 177         HTREEITEM rootitem;
 178
 179         rootitem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 180         if (rootitem == hItem)
 181         {
 182             SendMessageW(hwndLV, LVM_DELETEALLITEMS, 0, 0);
 183             return;
 184         }
 185
 186         keyPath = GetItemPath(hwndTV, hItem, &hRootKey);
 187         RefreshListView(hwndLV, hRootKey, keyPath, NULL);
 188         HeapFree(GetProcessHeap(), 0, keyPath);
 189     }
 190     UpdateStatusBar();
 191 }
 192
 193 /*******************************************************************************
 194  * finish_splitbar [internal]
 195  *
 196  * make the splitbar invisible and resize the windows
 197  * (helper for ChildWndProc)
 198  */
 199 static void finish_splitbar(HWND hWnd, int x)
 200 {
 201     RECT rt;
 202
 203     draw_splitbar(hWnd, last_split);
 204     last_split = -1;
 205     GetClientRect(hWnd, &rt);
 206     g_pChildWnd->nSplitPos = x;
 207     ResizeWnd(rt.right, rt.bottom);
 208     ReleaseCapture();
 209 }
 210
 211 /*******************************************************************************
 212  *
 213  *  FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
 214  *
 215  *  PURPOSE:  Processes WM_COMMAND messages for the main frame window.
 216  *
 217  */
 218
 219 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 220 {
 221     switch (LOWORD(wParam)) {
 222         /* Parse the menu selections: */
 223     case ID_REGISTRY_EXIT:
 224         DestroyWindow(hWnd);
 225         break;
 226     case ID_VIEW_REFRESH:
 227         WINE_TRACE("Is this ever called or is it just dead code?\n");
 228         /* TODO */
 229         break;
 230     case ID_SWITCH_PANELS:
 231         g_pChildWnd->nFocusPanel = !g_pChildWnd->nFocusPanel;
 232         SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 233         break;
 234     default:
 235         return FALSE;
 236     }
 237     return TRUE;
 238 }
 239
 240 /*******************************************************************************
 241  * get_last_key [internal]
 242  *
 243  * open last key
 244  *
 245  */
 246 static void get_last_key(HWND hwndTV)
 247 {
 248     HKEY hkey;
 249     WCHAR wszVal[KEY_MAX_LEN];
 250     DWORD dwSize = sizeof(wszVal);
 251
 252     if (RegCreateKeyExW(HKEY_CURRENT_USER, wszKeyName, 0, NULL, 0, KEY_READ, NULL, &hkey, NULL) == ERROR_SUCCESS)
 253     {
 254         if (RegQueryValueExW(hkey, wszLastKey, NULL, NULL, (LPBYTE)wszVal, &dwSize) == ERROR_SUCCESS)
 255         {
 256             HTREEITEM selection;
 257             if (!strcmpW(wszVal, g_pChildWnd->szPath))
 258                 selection = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 259             else
 260                 selection = FindPathInTree(hwndTV, wszVal);
 261             SendMessageW(hwndTV, TVM_SELECTITEM, TVGN_CARET, (LPARAM)selection);
 262         }
 263
 264         RegCloseKey(hkey);
 265     }
 266 }
 267
 268 /*******************************************************************************
 269  * set_last_key [internal]
 270  *
 271  * save last key
 272  *
 273  */
 274 static void set_last_key(HWND hwndTV)
 275 {
 276     HKEY hkey;
 277
 278     if (RegCreateKeyExW(HKEY_CURRENT_USER, wszKeyName, 0, NULL, 0, KEY_WRITE, NULL, &hkey, NULL) == ERROR_SUCCESS)
 279     {
 280         HTREEITEM selection = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_CARET, 0);
 281         HTREEITEM root = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 282         WCHAR *value;
 283
 284         if (selection == root)
 285             value = g_pChildWnd->szPath;
 286         else
 287             value = GetItemFullPath(g_pChildWnd->hTreeWnd, selection, FALSE);
 288         RegSetValueExW(hkey, wszLastKey, 0, REG_SZ, (LPBYTE)value, (lstrlenW(value) + 1) * sizeof(WCHAR));
 289         if (selection != root)
 290             HeapFree(GetProcessHeap(), 0, value);
 291         RegCloseKey(hkey);
 292     }
 293 }
 294
 295 #define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
 296 #define GET_Y_LPARAM(lp) ((int)(short)HIWORD(lp))
 297
 298 /*******************************************************************************
 299  *
 300  *  FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
 301  *
 302  *  PURPOSE:  Processes messages for the child windows.
 303  *
 304  *  WM_COMMAND  - process the application menu
 305  *  WM_PAINT    - Paint the main window
 306  *  WM_DESTROY  - post a quit message and return
 307  *
 308  */
 309 LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 310 {
 311     switch (message) {
 312     case WM_CREATE:
 313         g_pChildWnd = HeapAlloc(GetProcessHeap(), 0, sizeof(ChildWnd));
 314         if (!g_pChildWnd) return 0;
 315         LoadStringW(hInst, IDS_REGISTRY_ROOT_NAME, g_pChildWnd->szPath, MAX_PATH);
 316         g_pChildWnd->nSplitPos = 250;
 317         g_pChildWnd->hWnd = hWnd;
 318         g_pChildWnd->hTreeWnd = CreateTreeView(hWnd, g_pChildWnd->szPath, TREE_WINDOW);
 319         g_pChildWnd->hListWnd = CreateListView(hWnd, LIST_WINDOW/*, g_pChildWnd->szPath*/);
 320         g_pChildWnd->nFocusPanel = 1;
 321         SetFocus(g_pChildWnd->hTreeWnd);
 322         get_last_key(g_pChildWnd->hTreeWnd);
 323         break;
 324     case WM_COMMAND:
 325         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 326             goto def;
 327         }
 328         break;
 329     case WM_PAINT:
 330         OnPaint(hWnd);
 331         return 0;
 332     case WM_SETCURSOR:
 333         if (LOWORD(lParam) == HTCLIENT) {
 334             POINT pt;
 335             GetCursorPos(&pt);
 336             ScreenToClient(hWnd, &pt);
 337             if (pt.x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 338                 SetCursor(LoadCursorW(0, (LPCWSTR)IDC_SIZEWE));
 339                 return TRUE;
 340             }
 341         }
 342         goto def;
 343     case WM_DESTROY:
 344         set_last_key(g_pChildWnd->hTreeWnd);
 345         HeapFree(GetProcessHeap(), 0, g_pChildWnd);
 346         g_pChildWnd = NULL;
 347         PostQuitMessage(0);
 348         break;
 349     case WM_LBUTTONDOWN: {
 350             RECT rt;
 351             int x = (short)LOWORD(lParam);
 352             GetClientRect(hWnd, &rt);
 353             if (x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 354                 last_split = g_pChildWnd->nSplitPos;
 355                 draw_splitbar(hWnd, last_split);
 356                 SetCapture(hWnd);
 357             }
 358             break;
 359         }
 360
 361     /* WM_RBUTTONDOWN sets the splitbar the same way as WM_LBUTTONUP */
 362     case WM_LBUTTONUP:
 363     case WM_RBUTTONDOWN:
 364         if (GetCapture() == hWnd) {
 365             finish_splitbar(hWnd, LOWORD(lParam));
 366         }
 367         break;
 368
 369     case WM_CAPTURECHANGED:
 370         if (GetCapture()==hWnd && last_split>=0)
 371             draw_splitbar(hWnd, last_split);
 372         break;
 373
 374     case WM_CONTEXTMENU: {
 375         POINT pt = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
 376         TVHITTESTINFO ht;
 377         ht.pt = pt;
 378         ScreenToClient(g_pChildWnd->hTreeWnd, &ht.pt);
 379         if (SendMessageW(g_pChildWnd->hTreeWnd, TVM_HITTEST, 0, (LPARAM)&ht)) {
 380             HTREEITEM root;
 381             SendMessageW(g_pChildWnd->hTreeWnd, TVM_SELECTITEM, TVGN_CARET, (LPARAM)ht.hItem);
 382             root = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 383             TrackPopupMenu(GetSubMenu(hPopupMenus, ht.hItem == root ? PM_COMPUTER : PM_TREEVIEW),
 384                            TPM_RIGHTBUTTON, pt.x, pt.y, 0, hFrameWnd, NULL);
 385         }
 386         break;
 387     }
 388
 389     case WM_KEYDOWN:
 390         if (wParam == VK_ESCAPE)
 391             if (GetCapture() == hWnd) {
 392                 RECT rt;
 393                 draw_splitbar(hWnd, last_split);
 394                 GetClientRect(hWnd, &rt);
 395                 ResizeWnd(rt.right, rt.bottom);
 396                 last_split = -1;
 397                 ReleaseCapture();
 398                 SetCursor(LoadCursorW(0, (LPCWSTR)IDC_ARROW));
 399             }
 400         break;
 401
 402     case WM_MOUSEMOVE:
 403         if (GetCapture() == hWnd) {
 404             RECT rt;
 405             int x = LOWORD(lParam);
 406             HDC hdc = GetDC(hWnd);
 407             GetClientRect(hWnd, &rt);
 408             rt.left = last_split-SPLIT_WIDTH/2;
 409             rt.right = last_split+SPLIT_WIDTH/2+1;
 410             InvertRect(hdc, &rt);
 411             last_split = x;
 412             rt.left = x-SPLIT_WIDTH/2;
 413             rt.right = x+SPLIT_WIDTH/2+1;
 414             InvertRect(hdc, &rt);
 415             ReleaseDC(hWnd, hdc);
 416         }
 417         break;
 418
 419     case WM_SETFOCUS:
 420         if (g_pChildWnd != NULL) {
 421             SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 422         }
 423         break;
 424
 425     case WM_TIMER:
 426         break;
 427
 428     case WM_NOTIFY:
 429         if (((int)wParam == TREE_WINDOW) && (g_pChildWnd != NULL)) {
 430             switch (((LPNMHDR)lParam)->code) {
 431             case TVN_ITEMEXPANDINGW:
 432                 return !OnTreeExpanding(g_pChildWnd->hTreeWnd, (NMTREEVIEWW*)lParam);
 433             case TVN_SELCHANGEDW:
 434                 OnTreeSelectionChanged(g_pChildWnd->hTreeWnd, g_pChildWnd->hListWnd,
 435                     ((NMTREEVIEWW *)lParam)->itemNew.hItem, TRUE);
 436                 break;
 437             case NM_SETFOCUS:
 438                 g_pChildWnd->nFocusPanel = 0;
 439                 break;
 440             case TVN_BEGINLABELEDITW: {
 441                 HKEY hRootKey;
 442                 LPWSTR path;
 443
 444                 if (!GetWindowLongPtrW(g_pChildWnd->hTreeWnd, GWLP_USERDATA))
 445                     return 1;
 446
 447                 path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 448                 if (!path || !*path) return 1;
 449                 return 0;
 450             }
 451             case TVN_ENDLABELEDITW: {
 452                 HKEY hRootKey;
 453                 LPNMTVDISPINFOW dispInfo = (LPNMTVDISPINFOW)lParam;
 454                 LPWSTR path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 455                 BOOL res = RenameKey(hWnd, hRootKey, path, dispInfo->item.pszText);
 456                 if (res) {
 457                     TVITEMEXW item;
 458                     LPWSTR fullPath = GetPathFullPath(g_pChildWnd->hTreeWnd,
 459                      dispInfo->item.pszText);
 460                     item.mask = TVIF_HANDLE | TVIF_TEXT;
 461                     item.hItem = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_CARET, 0);
 462                     item.pszText = dispInfo->item.pszText;
 463                     SendMessageW( g_pChildWnd->hTreeWnd, TVM_SETITEMW, 0, (LPARAM)&item );
 464                     SendMessageW(hStatusBar, SB_SETTEXTW, 0, (LPARAM)fullPath);
 465                     HeapFree(GetProcessHeap(), 0, fullPath);
 466                 }
 467                 HeapFree(GetProcessHeap(), 0, path);
 468                 SetWindowLongPtrW(g_pChildWnd->hTreeWnd, GWLP_USERDATA, 0);
 469                 return res;
 470             }
 471             default:
 472                 return 0; /* goto def; */
 473             }
 474         } else
 475             if (((int)wParam == LIST_WINDOW) && (g_pChildWnd != NULL)) {
 476                 if (((LPNMHDR)lParam)->code == NM_SETFOCUS) {
 477                     g_pChildWnd->nFocusPanel = 1;
 478                 } else if (!SendMessageW(g_pChildWnd->hListWnd, WM_NOTIFY_REFLECT, wParam, lParam)) {
 479                     goto def;
 480                 }
 481             }
 482         break;
 483
 484     case WM_SIZE:
 485         if (wParam != SIZE_MINIMIZED && g_pChildWnd != NULL) {
 486             ResizeWnd(LOWORD(lParam), HIWORD(lParam));
 487         }
 488         /* fall through */
 489 default: def:
 490         return DefWindowProcW(hWnd, message, wParam, lParam);
 491     }
 492     return 0;
 493 }