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         keyPath = GetItemPath(hwndTV, hItem, &hRootKey);
 178         RefreshListView(hwndLV, hRootKey, keyPath, NULL);
 179         HeapFree(GetProcessHeap(), 0, keyPath);
 180     }
 181     UpdateStatusBar();
 182 }
 183
 184 /*******************************************************************************
 185  * finish_splitbar [internal]
 186  *
 187  * make the splitbar invisible and resize the windows
 188  * (helper for ChildWndProc)
 189  */
 190 static void finish_splitbar(HWND hWnd, int x)
 191 {
 192     RECT rt;
 193
 194     draw_splitbar(hWnd, last_split);
 195     last_split = -1;
 196     GetClientRect(hWnd, &rt);
 197     g_pChildWnd->nSplitPos = x;
 198     ResizeWnd(rt.right, rt.bottom);
 199     ReleaseCapture();
 200 }
 201
 202 /*******************************************************************************
 203  *
 204  *  FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
 205  *
 206  *  PURPOSE:  Processes WM_COMMAND messages for the main frame window.
 207  *
 208  */
 209
 210 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 211 {
 212     switch (LOWORD(wParam)) {
 213         /* Parse the menu selections: */
 214     case ID_REGISTRY_EXIT:
 215         DestroyWindow(hWnd);
 216         break;
 217     case ID_VIEW_REFRESH:
 218         WINE_TRACE("Is this ever called or is it just dead code?\n");
 219         /* TODO */
 220         break;
 221     case ID_SWITCH_PANELS:
 222         g_pChildWnd->nFocusPanel = !g_pChildWnd->nFocusPanel;
 223         SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 224         break;
 225     default:
 226         return FALSE;
 227     }
 228     return TRUE;
 229 }
 230
 231 /*******************************************************************************
 232  * get_last_key [internal]
 233  *
 234  * open last key
 235  *
 236  */
 237 static void get_last_key(HWND hwndTV)
 238 {
 239     HKEY hkey;
 240     WCHAR wszVal[KEY_MAX_LEN];
 241     DWORD dwSize = sizeof(wszVal);
 242
 243     if (RegCreateKeyExW(HKEY_CURRENT_USER, wszKeyName, 0, NULL, 0, KEY_READ, NULL, &hkey, NULL) == ERROR_SUCCESS)
 244     {
 245         if (RegQueryValueExW(hkey, wszLastKey, NULL, NULL, (LPBYTE)wszVal, &dwSize) == ERROR_SUCCESS)
 246             SendMessageW(hwndTV, TVM_SELECTITEM, TVGN_CARET, (LPARAM)FindPathInTree(hwndTV, wszVal));
 247
 248         RegCloseKey(hkey);
 249     }
 250 }
 251
 252 /*******************************************************************************
 253  * set_last_key [internal]
 254  *
 255  * save last key
 256  *
 257  */
 258 static void set_last_key(HWND hwndTV)
 259 {
 260     HKEY hkey;
 261     WCHAR *wszVal;
 262
 263     if (RegCreateKeyExW(HKEY_CURRENT_USER, wszKeyName, 0, NULL, 0, KEY_WRITE, NULL, &hkey, NULL) == ERROR_SUCCESS)
 264     {
 265         HTREEITEM selection = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_CARET, 0);
 266
 267         wszVal = GetItemFullPath(g_pChildWnd->hTreeWnd, selection, FALSE);
 268         RegSetValueExW(hkey, wszLastKey, 0, REG_SZ, (LPBYTE)wszVal, (lstrlenW(wszVal) + 1) * sizeof(WCHAR));
 269         HeapFree(GetProcessHeap(), 0, wszVal);
 270         RegCloseKey(hkey);
 271     }
 272 }
 273
 274 /*******************************************************************************
 275  *
 276  *  FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
 277  *
 278  *  PURPOSE:  Processes messages for the child windows.
 279  *
 280  *  WM_COMMAND  - process the application menu
 281  *  WM_PAINT    - Paint the main window
 282  *  WM_DESTROY  - post a quit message and return
 283  *
 284  */
 285 LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 286 {
 287     switch (message) {
 288     case WM_CREATE:
 289         g_pChildWnd = HeapAlloc(GetProcessHeap(), 0, sizeof(ChildWnd));
 290         if (!g_pChildWnd) return 0;
 291         LoadStringW(hInst, IDS_REGISTRY_ROOT_NAME, g_pChildWnd->szPath, MAX_PATH);
 292         g_pChildWnd->nSplitPos = 250;
 293         g_pChildWnd->hWnd = hWnd;
 294         g_pChildWnd->hTreeWnd = CreateTreeView(hWnd, g_pChildWnd->szPath, TREE_WINDOW);
 295         g_pChildWnd->hListWnd = CreateListView(hWnd, LIST_WINDOW/*, g_pChildWnd->szPath*/);
 296         g_pChildWnd->nFocusPanel = 1;
 297         SetFocus(g_pChildWnd->hTreeWnd);
 298         get_last_key(g_pChildWnd->hTreeWnd);
 299         break;
 300     case WM_COMMAND:
 301         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 302             goto def;
 303         }
 304         break;
 305     case WM_PAINT:
 306         OnPaint(hWnd);
 307         return 0;
 308     case WM_SETCURSOR:
 309         if (LOWORD(lParam) == HTCLIENT) {
 310             POINT pt;
 311             GetCursorPos(&pt);
 312             ScreenToClient(hWnd, &pt);
 313             if (pt.x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 314                 SetCursor(LoadCursorW(0, (LPCWSTR)IDC_SIZEWE));
 315                 return TRUE;
 316             }
 317         }
 318         goto def;
 319     case WM_DESTROY:
 320         set_last_key(g_pChildWnd->hTreeWnd);
 321         HeapFree(GetProcessHeap(), 0, g_pChildWnd);
 322         g_pChildWnd = NULL;
 323         PostQuitMessage(0);
 324         break;
 325     case WM_LBUTTONDOWN: {
 326             RECT rt;
 327             int x = (short)LOWORD(lParam);
 328             GetClientRect(hWnd, &rt);
 329             if (x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 330                 last_split = g_pChildWnd->nSplitPos;
 331                 draw_splitbar(hWnd, last_split);
 332                 SetCapture(hWnd);
 333             }
 334             break;
 335         }
 336
 337     /* WM_RBUTTONDOWN sets the splitbar the same way as WM_LBUTTONUP */
 338     case WM_LBUTTONUP:
 339     case WM_RBUTTONDOWN:
 340         if (GetCapture() == hWnd) {
 341             finish_splitbar(hWnd, LOWORD(lParam));
 342         }
 343         break;
 344
 345     case WM_CAPTURECHANGED:
 346         if (GetCapture()==hWnd && last_split>=0)
 347             draw_splitbar(hWnd, last_split);
 348         break;
 349
 350     case WM_KEYDOWN:
 351         if (wParam == VK_ESCAPE)
 352             if (GetCapture() == hWnd) {
 353                 RECT rt;
 354                 draw_splitbar(hWnd, last_split);
 355                 GetClientRect(hWnd, &rt);
 356                 ResizeWnd(rt.right, rt.bottom);
 357                 last_split = -1;
 358                 ReleaseCapture();
 359                 SetCursor(LoadCursorW(0, (LPCWSTR)IDC_ARROW));
 360             }
 361         break;
 362
 363     case WM_MOUSEMOVE:
 364         if (GetCapture() == hWnd) {
 365             RECT rt;
 366             int x = LOWORD(lParam);
 367             HDC hdc = GetDC(hWnd);
 368             GetClientRect(hWnd, &rt);
 369             rt.left = last_split-SPLIT_WIDTH/2;
 370             rt.right = last_split+SPLIT_WIDTH/2+1;
 371             InvertRect(hdc, &rt);
 372             last_split = x;
 373             rt.left = x-SPLIT_WIDTH/2;
 374             rt.right = x+SPLIT_WIDTH/2+1;
 375             InvertRect(hdc, &rt);
 376             ReleaseDC(hWnd, hdc);
 377         }
 378         break;
 379
 380     case WM_SETFOCUS:
 381         if (g_pChildWnd != NULL) {
 382             SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 383         }
 384         break;
 385
 386     case WM_TIMER:
 387         break;
 388
 389     case WM_NOTIFY:
 390         if (((int)wParam == TREE_WINDOW) && (g_pChildWnd != NULL)) {
 391             switch (((LPNMHDR)lParam)->code) {
 392             case TVN_ITEMEXPANDINGW:
 393                 return !OnTreeExpanding(g_pChildWnd->hTreeWnd, (NMTREEVIEWW*)lParam);
 394             case TVN_SELCHANGEDW:
 395                 OnTreeSelectionChanged(g_pChildWnd->hTreeWnd, g_pChildWnd->hListWnd,
 396                     ((NMTREEVIEWW *)lParam)->itemNew.hItem, TRUE);
 397                 break;
 398             case NM_SETFOCUS:
 399                 g_pChildWnd->nFocusPanel = 0;
 400                 break;
 401             case NM_RCLICK: {
 402                 POINT pt;
 403                 GetCursorPos(&pt);
 404                 TrackPopupMenu(GetSubMenu(hPopupMenus, PM_NEW),
 405                                TPM_RIGHTBUTTON, pt.x, pt.y, 0, hFrameWnd, NULL);
 406                 break;
 407             }
 408             case TVN_BEGINLABELEDITW: {
 409                 HKEY hRootKey;
 410                 LPWSTR path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 411                 if (!path || !*path) return 1;
 412                 return 0;
 413             }
 414             case TVN_ENDLABELEDITW: {
 415                 HKEY hRootKey;
 416                 LPNMTVDISPINFOW dispInfo = (LPNMTVDISPINFOW)lParam;
 417                 LPWSTR path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 418                 BOOL res = RenameKey(hWnd, hRootKey, path, dispInfo->item.pszText);
 419                 if (res) {
 420                     TVITEMEXW item;
 421                     LPWSTR fullPath = GetPathFullPath(g_pChildWnd->hTreeWnd,
 422                      dispInfo->item.pszText);
 423                     item.mask = TVIF_HANDLE | TVIF_TEXT;
 424                     item.hItem = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_CARET, 0);
 425                     item.pszText = dispInfo->item.pszText;
 426                     SendMessageW( g_pChildWnd->hTreeWnd, TVM_SETITEMW, 0, (LPARAM)&item );
 427                     SendMessageW(hStatusBar, SB_SETTEXTW, 0, (LPARAM)fullPath);
 428                     HeapFree(GetProcessHeap(), 0, fullPath);
 429                 }
 430                 HeapFree(GetProcessHeap(), 0, path);
 431                 return res;
 432             }
 433             default:
 434                 return 0; /* goto def; */
 435             }
 436         } else
 437             if (((int)wParam == LIST_WINDOW) && (g_pChildWnd != NULL)) {
 438                 if (((LPNMHDR)lParam)->code == NM_SETFOCUS) {
 439                     g_pChildWnd->nFocusPanel = 1;
 440                 } else if (!SendMessageW(g_pChildWnd->hListWnd, WM_NOTIFY_REFLECT, wParam, lParam)) {
 441                     goto def;
 442                 }
 443             }
 444         break;
 445
 446     case WM_SIZE:
 447         if (wParam != SIZE_MINIMIZED && g_pChildWnd != NULL) {
 448             ResizeWnd(LOWORD(lParam), HIWORD(lParam));
 449         }
 450         /* fall through */
 451 default: def:
 452         return DefWindowProcW(hWnd, message, wParam, lParam);
 453     }
 454     return 0;
 455 }