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