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 #include "regproc.h"
  29
  30 #include "wine/debug.h"
  31 #include "wine/unicode.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(regedit);
  34
  35 ChildWnd* g_pChildWnd;
  36 static int last_split;
  37
  38 /*******************************************************************************
  39  * Local module support methods
  40  */
  41
  42 LPCTSTR GetRootKeyName(HKEY hRootKey)
  43 {
  44     if (hRootKey == HKEY_CLASSES_ROOT) return _T("HKEY_CLASSES_ROOT");
  45     if (hRootKey == HKEY_CURRENT_USER) return _T("HKEY_CURRENT_USER");
  46     if (hRootKey == HKEY_LOCAL_MACHINE) return _T("HKEY_LOCAL_MACHINE");
  47     if (hRootKey == HKEY_USERS) return _T("HKEY_USERS");
  48     if (hRootKey == HKEY_CURRENT_CONFIG) return _T("HKEY_CURRENT_CONFIG");
  49     if (hRootKey == HKEY_DYN_DATA) return _T("HKEY_DYN_DATA");
  50     return _T("UNKNOWN HKEY, PLEASE REPORT");
  51 }
  52
  53 LPCWSTR GetRootKeyNameW(HKEY hRootKey)
  54 {
  55     if(hRootKey == HKEY_CLASSES_ROOT)
  56         return reg_class_namesW[INDEX_HKEY_CLASSES_ROOT];
  57     if(hRootKey == HKEY_CURRENT_USER)
  58         return reg_class_namesW[INDEX_HKEY_CURRENT_USER];
  59     if(hRootKey == HKEY_LOCAL_MACHINE)
  60         return reg_class_namesW[INDEX_HKEY_LOCAL_MACHINE];
  61     if(hRootKey == HKEY_USERS)
  62         return reg_class_namesW[INDEX_HKEY_USERS];
  63     if(hRootKey == HKEY_CURRENT_CONFIG)
  64         return reg_class_namesW[INDEX_HKEY_CURRENT_CONFIG];
  65     if(hRootKey == HKEY_DYN_DATA)
  66         return reg_class_namesW[INDEX_HKEY_DYN_DATA];
  67     else
  68     {
  69         static const WCHAR unknown_key[] = {'U','N','K','N','O','W','N',' ','H','K','E','Y',',',' ',
  70                                             'P','L','E','A','S','E',' ','R','E','P','O','R','T',0};
  71         return unknown_key;
  72     }
  73 }
  74
  75 static void draw_splitbar(HWND hWnd, int x)
  76 {
  77     RECT rt;
  78     HDC hdc = GetDC(hWnd);
  79
  80     GetClientRect(hWnd, &rt);
  81     rt.left = x - SPLIT_WIDTH/2;
  82     rt.right = x + SPLIT_WIDTH/2+1;
  83     InvertRect(hdc, &rt);
  84     ReleaseDC(hWnd, hdc);
  85 }
  86
  87 static void ResizeWnd(int cx, int cy)
  88 {
  89     HDWP hdwp = BeginDeferWindowPos(2);
  90     RECT rt = {0, 0, cx, cy};
  91
  92     cx = g_pChildWnd->nSplitPos + SPLIT_WIDTH/2;
  93     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);
  94     DeferWindowPos(hdwp, g_pChildWnd->hListWnd, 0, rt.left+cx  , rt.top, rt.right-cx, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
  95     EndDeferWindowPos(hdwp);
  96 }
  97
  98 static void OnPaint(HWND hWnd)
  99 {
 100     PAINTSTRUCT ps;
 101     RECT rt;
 102     HDC hdc;
 103
 104     GetClientRect(hWnd, &rt);
 105     hdc = BeginPaint(hWnd, &ps);
 106     FillRect(ps.hdc, &rt, GetSysColorBrush(COLOR_BTNFACE));
 107     EndPaint(hWnd, &ps);
 108 }
 109
 110 static LPWSTR CombinePaths(LPCWSTR pPaths[], int nPaths) {
 111     int i, len, pos;
 112     LPWSTR combined;
 113     for (i=0, len=0; i<nPaths; i++) {
 114         if (pPaths[i] && *pPaths[i]) {
 115             len += lstrlenW(pPaths[i])+1;
 116         }
 117     }
 118     combined = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 119     *combined = '\0';
 120     for (i=0, pos=0; i<nPaths; i++) {
 121         if (pPaths[i] && *pPaths[i]) {
 122             int llen = lstrlenW(pPaths[i]);
 123             if (!*combined)
 124                 lstrcpyW(combined, pPaths[i]);
 125             else {
 126                 combined[pos++] = (TCHAR)'\\';
 127                 lstrcpyW(combined+pos, pPaths[i]);
 128             }
 129             pos += llen;
 130         }
 131     }
 132     return combined;
 133 }
 134
 135 static LPWSTR GetPathRoot(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 136     LPCWSTR parts[2] = {0,0};
 137     WCHAR text[260];
 138     HKEY hRootKey = NULL;
 139     if (!hItem)
 140         hItem = TreeView_GetSelection(hwndTV);
 141     HeapFree(GetProcessHeap(), 0, GetItemPath(hwndTV, hItem, &hRootKey));
 142     if (!bFull && !hRootKey)
 143         return NULL;
 144     if (hRootKey)
 145         parts[1] = GetRootKeyNameW(hRootKey);
 146     if (bFull) {
 147         DWORD dwSize = sizeof(text)/sizeof(TCHAR);
 148         GetComputerNameW(text, &dwSize);
 149         parts[0] = text;
 150     }
 151     return CombinePaths(parts, 2);
 152 }
 153
 154 LPWSTR GetItemFullPath(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 155     LPWSTR parts[2];
 156     LPWSTR ret;
 157     HKEY hRootKey = NULL;
 158
 159     parts[0] = GetPathRoot(hwndTV, hItem, bFull);
 160     parts[1] = GetItemPath(hwndTV, hItem, &hRootKey);
 161     ret = CombinePaths((LPCWSTR *)parts, 2);
 162     HeapFree(GetProcessHeap(), 0, parts[0]);
 163     HeapFree(GetProcessHeap(), 0, parts[1]);
 164     return ret;
 165 }
 166
 167 static LPWSTR GetPathFullPath(HWND hwndTV, LPWSTR path) {
 168     LPWSTR parts[2];
 169     LPWSTR ret;
 170
 171     parts[0] = GetPathRoot(hwndTV, 0, TRUE);
 172     parts[1] = path;
 173     ret = CombinePaths((LPCWSTR*)parts, 2);
 174     HeapFree(GetProcessHeap(), 0, parts[0]);
 175     return ret;
 176 }
 177
 178 static void OnTreeSelectionChanged(HWND hwndTV, HWND hwndLV, HTREEITEM hItem, BOOL bRefreshLV)
 179 {
 180     if (bRefreshLV) {
 181         LPWSTR keyPath;
 182         HKEY hRootKey = NULL;
 183         keyPath = GetItemPath(hwndTV, hItem, &hRootKey);
 184         RefreshListView(hwndLV, hRootKey, keyPath, NULL);
 185         HeapFree(GetProcessHeap(), 0, keyPath);
 186     }
 187     UpdateStatusBar();
 188 }
 189
 190 /*******************************************************************************
 191  * finish_splitbar [internal]
 192  *
 193  * make the splitbar invisible and resize the windows
 194  * (helper for ChildWndProc)
 195  */
 196 static void finish_splitbar(HWND hWnd, int x)
 197 {
 198     RECT rt;
 199
 200     draw_splitbar(hWnd, last_split);
 201     last_split = -1;
 202     GetClientRect(hWnd, &rt);
 203     g_pChildWnd->nSplitPos = x;
 204     ResizeWnd(rt.right, rt.bottom);
 205     ReleaseCapture();
 206 }
 207
 208 /*******************************************************************************
 209  *
 210  *  FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
 211  *
 212  *  PURPOSE:  Processes WM_COMMAND messages for the main frame window.
 213  *
 214  */
 215
 216 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 217 {
 218     switch (LOWORD(wParam)) {
 219         /* Parse the menu selections: */
 220     case ID_REGISTRY_EXIT:
 221         DestroyWindow(hWnd);
 222         break;
 223     case ID_VIEW_REFRESH:
 224         WINE_TRACE("Is this ever called or is it just dead code?\n");
 225         /* TODO */
 226         break;
 227     case ID_SWITCH_PANELS:
 228         g_pChildWnd->nFocusPanel = !g_pChildWnd->nFocusPanel;
 229         SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 230         break;
 231     default:
 232         return FALSE;
 233     }
 234     return TRUE;
 235 }
 236
 237 /*******************************************************************************
 238  *
 239  *  FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
 240  *
 241  *  PURPOSE:  Processes messages for the child windows.
 242  *
 243  *  WM_COMMAND  - process the application menu
 244  *  WM_PAINT    - Paint the main window
 245  *  WM_DESTROY  - post a quit message and return
 246  *
 247  */
 248 LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 249 {
 250     switch (message) {
 251     case WM_CREATE:
 252         g_pChildWnd = HeapAlloc(GetProcessHeap(), 0, sizeof(ChildWnd));
 253         if (!g_pChildWnd) return 0;
 254         LoadStringW(hInst, IDS_REGISTRY_ROOT_NAME, g_pChildWnd->szPath, MAX_PATH);
 255         g_pChildWnd->nSplitPos = 250;
 256         g_pChildWnd->hWnd = hWnd;
 257         g_pChildWnd->hTreeWnd = CreateTreeView(hWnd, g_pChildWnd->szPath, TREE_WINDOW);
 258         g_pChildWnd->hListWnd = CreateListView(hWnd, LIST_WINDOW/*, g_pChildWnd->szPath*/);
 259         g_pChildWnd->nFocusPanel = 1;
 260         SetFocus(g_pChildWnd->hTreeWnd);
 261         break;
 262     case WM_COMMAND:
 263         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 264             goto def;
 265         }
 266         break;
 267     case WM_PAINT:
 268         OnPaint(hWnd);
 269         return 0;
 270     case WM_SETCURSOR:
 271         if (LOWORD(lParam) == HTCLIENT) {
 272             POINT pt;
 273             GetCursorPos(&pt);
 274             ScreenToClient(hWnd, &pt);
 275             if (pt.x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 276                 SetCursor(LoadCursor(0, IDC_SIZEWE));
 277                 return TRUE;
 278             }
 279         }
 280         goto def;
 281     case WM_DESTROY:
 282         HeapFree(GetProcessHeap(), 0, g_pChildWnd);
 283         g_pChildWnd = NULL;
 284         PostQuitMessage(0);
 285         break;
 286     case WM_LBUTTONDOWN: {
 287             RECT rt;
 288             int x = (short)LOWORD(lParam);
 289             GetClientRect(hWnd, &rt);
 290             if (x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 291                 last_split = g_pChildWnd->nSplitPos;
 292                 draw_splitbar(hWnd, last_split);
 293                 SetCapture(hWnd);
 294             }
 295             break;
 296         }
 297
 298     /* WM_RBUTTONDOWN sets the splitbar the same way as WM_LBUTTONUP */
 299     case WM_LBUTTONUP:
 300     case WM_RBUTTONDOWN:
 301         if (GetCapture() == hWnd) {
 302             finish_splitbar(hWnd, LOWORD(lParam));
 303         }
 304         break;
 305
 306     case WM_CAPTURECHANGED:
 307         if (GetCapture()==hWnd && last_split>=0)
 308             draw_splitbar(hWnd, last_split);
 309         break;
 310
 311     case WM_KEYDOWN:
 312         if (wParam == VK_ESCAPE)
 313             if (GetCapture() == hWnd) {
 314                 RECT rt;
 315                 draw_splitbar(hWnd, last_split);
 316                 GetClientRect(hWnd, &rt);
 317                 ResizeWnd(rt.right, rt.bottom);
 318                 last_split = -1;
 319                 ReleaseCapture();
 320                 SetCursor(LoadCursor(0, IDC_ARROW));
 321             }
 322         break;
 323
 324     case WM_MOUSEMOVE:
 325         if (GetCapture() == hWnd) {
 326             RECT rt;
 327             int x = LOWORD(lParam);
 328             HDC hdc = GetDC(hWnd);
 329             GetClientRect(hWnd, &rt);
 330             rt.left = last_split-SPLIT_WIDTH/2;
 331             rt.right = last_split+SPLIT_WIDTH/2+1;
 332             InvertRect(hdc, &rt);
 333             last_split = x;
 334             rt.left = x-SPLIT_WIDTH/2;
 335             rt.right = x+SPLIT_WIDTH/2+1;
 336             InvertRect(hdc, &rt);
 337             ReleaseDC(hWnd, hdc);
 338         }
 339         break;
 340
 341     case WM_SETFOCUS:
 342         if (g_pChildWnd != NULL) {
 343             SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 344         }
 345         break;
 346
 347     case WM_TIMER:
 348         break;
 349
 350     case WM_NOTIFY:
 351         if (((int)wParam == TREE_WINDOW) && (g_pChildWnd != NULL)) {
 352             switch (((LPNMHDR)lParam)->code) {
 353             case TVN_ITEMEXPANDINGW:
 354                 return !OnTreeExpanding(g_pChildWnd->hTreeWnd, (NMTREEVIEW*)lParam);
 355             case TVN_SELCHANGEDW:
 356                 OnTreeSelectionChanged(g_pChildWnd->hTreeWnd, g_pChildWnd->hListWnd,
 357                     ((NMTREEVIEWW *)lParam)->itemNew.hItem, TRUE);
 358                 break;
 359             case NM_SETFOCUS:
 360                 g_pChildWnd->nFocusPanel = 0;
 361                 break;
 362             case NM_RCLICK: {
 363                 POINT pt;
 364                 GetCursorPos(&pt);
 365                 TrackPopupMenu(GetSubMenu(hPopupMenus, PM_NEW),
 366                                TPM_RIGHTBUTTON, pt.x, pt.y, 0, hFrameWnd, NULL);
 367                 break;
 368             }
 369             case TVN_ENDLABELEDITW: {
 370                 HKEY hRootKey;
 371                 LPNMTVDISPINFOW dispInfo = (LPNMTVDISPINFOW)lParam;
 372                 LPWSTR path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 373                 BOOL res = RenameKey(hWnd, hRootKey, path, dispInfo->item.pszText);
 374                 if (res) {
 375                     TVITEMEXW item;
 376                     LPWSTR fullPath = GetPathFullPath(g_pChildWnd->hTreeWnd,
 377                      dispInfo->item.pszText);
 378                     item.mask = TVIF_HANDLE | TVIF_TEXT;
 379                     item.hItem = TreeView_GetSelection(g_pChildWnd->hTreeWnd);
 380                     item.pszText = dispInfo->item.pszText;
 381                     SendMessageW( g_pChildWnd->hTreeWnd, TVM_SETITEMW, 0, (LPARAM)&item );
 382                     SendMessageW(hStatusBar, SB_SETTEXTW, 0, (LPARAM)fullPath);
 383                     HeapFree(GetProcessHeap(), 0, fullPath);
 384                 }
 385                 HeapFree(GetProcessHeap(), 0, path);
 386                 return res;
 387             }
 388             default:
 389                 return 0; /* goto def; */
 390             }
 391         } else
 392             if (((int)wParam == LIST_WINDOW) && (g_pChildWnd != NULL)) {
 393                 if (((LPNMHDR)lParam)->code == NM_SETFOCUS) {
 394                     g_pChildWnd->nFocusPanel = 1;
 395                 } else if (!SendMessage(g_pChildWnd->hListWnd, WM_NOTIFY_REFLECT, wParam, lParam)) {
 396                     goto def;
 397                 }
 398             }
 399         break;
 400
 401     case WM_SIZE:
 402         if (wParam != SIZE_MINIMIZED && g_pChildWnd != NULL) {
 403             ResizeWnd(LOWORD(lParam), HIWORD(lParam));
 404         }
 405         /* fall through */
 406 default: def:
 407         return DefWindowProc(hWnd, message, wParam, lParam);
 408     }
 409     return 0;
 410 }