dlls/shell32/control.c

   1 /* Control Panel management
   2  *
   3  * Copyright 2001 Eric Pouech
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include <assert.h>
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "wingdi.h"
  29 #include "winuser.h"
  30 #include "wine/winbase16.h"
  31 #include "wownt32.h"
  32 #include "wine/debug.h"
  33 #include "cpl.h"
  34 #include "wine/unicode.h"
  35
  36 #define NO_SHLWAPI_REG
  37 #include "shlwapi.h"
  38
  39 #include "cpanel.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(shlctrl);
  42
  43 CPlApplet*      Control_UnloadApplet(CPlApplet* applet)
  44 {
  45     unsigned    i;
  46     CPlApplet*  next;
  47
  48     for (i = 0; i < applet->count; i++) {
  49         if (!applet->info[i].dwSize) continue;
  50         applet->proc(applet->hWnd, CPL_STOP, i, applet->info[i].lData);
  51     }
  52     if (applet->proc) applet->proc(applet->hWnd, CPL_EXIT, 0L, 0L);
  53     FreeLibrary(applet->hModule);
  54     next = applet->next;
  55     HeapFree(GetProcessHeap(), 0, applet);
  56     return next;
  57 }
  58
  59 CPlApplet*      Control_LoadApplet(HWND hWnd, LPCWSTR cmd, CPanel* panel)
  60 {
  61     CPlApplet*  applet;
  62     unsigned    i;
  63     CPLINFO     info;
  64     NEWCPLINFOW newinfo;
  65
  66     if (!(applet = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*applet))))
  67        return applet;
  68
  69     applet->hWnd = hWnd;
  70
  71     if (!(applet->hModule = LoadLibraryW(cmd))) {
  72         WARN("Cannot load control panel applet %s\n", debugstr_w(cmd));
  73         goto theError;
  74     }
  75     if (!(applet->proc = (APPLET_PROC)GetProcAddress(applet->hModule, "CPlApplet"))) {
  76         WARN("Not a valid control panel applet %s\n", debugstr_w(cmd));
  77         goto theError;
  78     }
  79     if (!applet->proc(hWnd, CPL_INIT, 0L, 0L)) {
  80         WARN("Init of applet has failed\n");
  81         goto theError;
  82     }
  83     if ((applet->count = applet->proc(hWnd, CPL_GETCOUNT, 0L, 0L)) == 0) {
  84         WARN("No subprogram in applet\n");
  85         goto theError;
  86     }
  87
  88     applet = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, applet,
  89                          sizeof(*applet) + (applet->count - 1) * sizeof(NEWCPLINFOW));
  90
  91     for (i = 0; i < applet->count; i++) {
  92        ZeroMemory(&newinfo, sizeof(newinfo));
  93        newinfo.dwSize = sizeof(NEWCPLINFOA);
  94        applet->info[i].dwSize = sizeof(NEWCPLINFOW);
  95        /* proc is supposed to return a null value upon success for
  96         * CPL_INQUIRE and CPL_NEWINQUIRE
  97         * However, real drivers don't seem to behave like this
  98         * So, use introspection rather than return value
  99         */
 100        applet->proc(hWnd, CPL_NEWINQUIRE, i, (LPARAM)&newinfo);
 101        if (newinfo.hIcon == 0) {
 102            applet->proc(hWnd, CPL_INQUIRE, i, (LPARAM)&info);
 103            if (info.idIcon == 0 || info.idName == 0) {
 104                WARN("Couldn't get info from sp %u\n", i);
 105                applet->info[i].dwSize = 0;
 106            } else {
 107                /* convert the old data into the new structure */
 108                applet->info[i].dwFlags = 0;
 109                applet->info[i].dwHelpContext = 0;
 110                applet->info[i].lData = info.lData;
 111                applet->info[i].hIcon = LoadIconW(applet->hModule,
 112                                                  MAKEINTRESOURCEW(info.idIcon));
 113                LoadStringW(applet->hModule, info.idName,
 114                            applet->info[i].szName, sizeof(applet->info[i].szName) / sizeof(WCHAR));
 115                LoadStringW(applet->hModule, info.idInfo,
 116                            applet->info[i].szInfo, sizeof(applet->info[i].szInfo) / sizeof(WCHAR));
 117                applet->info[i].szHelpFile[0] = '\0';
 118            }
 119        }
 120        else
 121        {
 122            CopyMemory(&applet->info[i], &newinfo, newinfo.dwSize);
 123            if (newinfo.dwSize != sizeof(NEWCPLINFOW))
 124            {
 125                applet->info[i].dwSize = sizeof(NEWCPLINFOW);
 126                MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szName,
 127                                    sizeof(((LPNEWCPLINFOA)&newinfo)->szName) / sizeof(CHAR),
 128                                    applet->info[i].szName,
 129                                    sizeof(applet->info[i].szName) / sizeof(WCHAR));
 130                MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szInfo,
 131                                    sizeof(((LPNEWCPLINFOA)&newinfo)->szInfo) / sizeof(CHAR),
 132                                    applet->info[i].szInfo,
 133                                    sizeof(applet->info[i].szInfo) / sizeof(WCHAR));
 134                MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szHelpFile,
 135                                    sizeof(((LPNEWCPLINFOA)&newinfo)->szHelpFile) / sizeof(CHAR),
 136                                    applet->info[i].szHelpFile,
 137                                    sizeof(applet->info[i].szHelpFile) / sizeof(WCHAR));
 138            }
 139        }
 140     }
 141
 142     applet->next = panel->first;
 143     panel->first = applet;
 144
 145     return applet;
 146
 147  theError:
 148     Control_UnloadApplet(applet);
 149     return NULL;
 150 }
 151
 152 static void      Control_WndProc_Create(HWND hWnd, const CREATESTRUCTA* cs)
 153 {
 154    CPanel*      panel = (CPanel*)cs->lpCreateParams;
 155
 156    SetWindowLongPtrA(hWnd, 0, (LONG_PTR)panel);
 157    panel->status = 0;
 158    panel->hWnd = hWnd;
 159 }
 160
 161 #define XICON   32
 162 #define XSTEP   128
 163 #define YICON   32
 164 #define YSTEP   64
 165
 166 static BOOL     Control_Localize(const CPanel* panel, int cx, int cy,
 167                                  CPlApplet** papplet, unsigned* psp)
 168 {
 169     unsigned    i, x = (XSTEP-XICON)/2, y = 0;
 170     CPlApplet*  applet;
 171     RECT        rc;
 172
 173     GetClientRect(panel->hWnd, &rc);
 174     for (applet = panel->first; applet; applet = applet->next) {
 175         for (i = 0; i < applet->count; i++) {
 176             if (!applet->info[i].dwSize) continue;
 177             if (x + XSTEP >= rc.right - rc.left) {
 178                 x = (XSTEP-XICON)/2;
 179                 y += YSTEP;
 180             }
 181             if (cx >= x && cx < x + XICON && cy >= y && cy < y + YSTEP) {
 182                 *papplet = applet;
 183                 *psp = i;
 184                 return TRUE;
 185             }
 186             x += XSTEP;
 187         }
 188     }
 189     return FALSE;
 190 }
 191
 192 static LRESULT Control_WndProc_Paint(const CPanel* panel, WPARAM wParam)
 193 {
 194     HDC         hdc;
 195     PAINTSTRUCT ps;
 196     RECT        rc, txtRect;
 197     unsigned    i, x = 0, y = 0;
 198     CPlApplet*  applet;
 199     HGDIOBJ     hOldFont;
 200
 201     hdc = (wParam) ? (HDC)wParam : BeginPaint(panel->hWnd, &ps);
 202     hOldFont = SelectObject(hdc, GetStockObject(ANSI_VAR_FONT));
 203     GetClientRect(panel->hWnd, &rc);
 204     for (applet = panel->first; applet; applet = applet->next) {
 205         for (i = 0; i < applet->count; i++) {
 206             if (x + XSTEP >= rc.right - rc.left) {
 207                 x = 0;
 208                 y += YSTEP;
 209             }
 210             if (!applet->info[i].dwSize) continue;
 211             DrawIcon(hdc, x + (XSTEP-XICON)/2, y, applet->info[i].hIcon);
 212             txtRect.left = x;
 213             txtRect.right = x + XSTEP;
 214             txtRect.top = y + YICON;
 215             txtRect.bottom = y + YSTEP;
 216             DrawTextW(hdc, applet->info[i].szName, -1, &txtRect,
 217                       DT_CENTER | DT_VCENTER);
 218             x += XSTEP;
 219         }
 220     }
 221     SelectObject(hdc, hOldFont);
 222     if (!wParam) EndPaint(panel->hWnd, &ps);
 223     return 0;
 224 }
 225
 226 static LRESULT Control_WndProc_LButton(CPanel* panel, LPARAM lParam, BOOL up)
 227 {
 228     unsigned    i;
 229     CPlApplet*  applet;
 230
 231     if (Control_Localize(panel, (short)LOWORD(lParam), (short)HIWORD(lParam), &applet, &i)) {
 232        if (up) {
 233            if (panel->clkApplet == applet && panel->clkSP == i) {
 234                applet->proc(applet->hWnd, CPL_DBLCLK, i, applet->info[i].lData);
 235            }
 236        } else {
 237            panel->clkApplet = applet;
 238            panel->clkSP = i;
 239        }
 240     }
 241     return 0;
 242 }
 243
 244 static LRESULT WINAPI   Control_WndProc(HWND hWnd, UINT wMsg,
 245                                         WPARAM lParam1, LPARAM lParam2)
 246 {
 247    CPanel*      panel = (CPanel*)GetWindowLongPtrA(hWnd, 0);
 248
 249    if (panel || wMsg == WM_CREATE) {
 250       switch (wMsg) {
 251       case WM_CREATE:
 252          Control_WndProc_Create(hWnd, (CREATESTRUCTA*)lParam2);
 253          return 0;
 254       case WM_DESTROY:
 255          {
 256             CPlApplet*  applet = panel->first;
 257             while (applet)
 258                applet = Control_UnloadApplet(applet);
 259          }
 260          PostQuitMessage(0);
 261          break;
 262       case WM_PAINT:
 263          return Control_WndProc_Paint(panel, lParam1);
 264       case WM_LBUTTONUP:
 265          return Control_WndProc_LButton(panel, lParam2, TRUE);
 266       case WM_LBUTTONDOWN:
 267          return Control_WndProc_LButton(panel, lParam2, FALSE);
 268 /* EPP       case WM_COMMAND: */
 269 /* EPP   return Control_WndProc_Command(mwi, lParam1, lParam2); */
 270       }
 271    }
 272
 273    return DefWindowProcA(hWnd, wMsg, lParam1, lParam2);
 274 }
 275
 276 static void    Control_DoInterface(CPanel* panel, HWND hWnd, HINSTANCE hInst)
 277 {
 278     WNDCLASSA   wc;
 279     MSG         msg;
 280     const CHAR* appName = "Wine Control Panel";
 281     wc.style = CS_HREDRAW|CS_VREDRAW;
 282     wc.lpfnWndProc = Control_WndProc;
 283     wc.cbClsExtra = 0;
 284     wc.cbWndExtra = sizeof(CPlApplet*);
 285     wc.hInstance = hInst;
 286     wc.hIcon = 0;
 287     wc.hCursor = 0;
 288     wc.hbrBackground = GetStockObject(WHITE_BRUSH);
 289     wc.lpszMenuName = NULL;
 290     wc.lpszClassName = "Shell_Control_WndClass";
 291
 292     if (!RegisterClassA(&wc)) return;
 293
 294     CreateWindowExA(0, wc.lpszClassName, appName,
 295                     WS_OVERLAPPEDWINDOW | WS_VISIBLE,
 296                     CW_USEDEFAULT, CW_USEDEFAULT,
 297                     CW_USEDEFAULT, CW_USEDEFAULT,
 298                     hWnd, NULL, hInst, panel);
 299     if (!panel->hWnd) return;
 300
 301     if (!panel->first) {
 302         /* FIXME appName & message should be localized  */
 303         MessageBoxA(panel->hWnd, "Cannot load any applets", appName, MB_OK);
 304         return;
 305     }
 306
 307     while (GetMessageA(&msg, panel->hWnd, 0, 0)) {
 308         TranslateMessage(&msg);
 309         DispatchMessageA(&msg);
 310     }
 311 }
 312
 313 static  void    Control_DoWindow(CPanel* panel, HWND hWnd, HINSTANCE hInst)
 314 {
 315     HANDLE              h;
 316     WIN32_FIND_DATAW    fd;
 317     WCHAR               buffer[MAX_PATH];
 318     static const WCHAR wszAllCpl[] = {'*','.','c','p','l',0};
 319     WCHAR *p;
 320
 321     GetSystemDirectoryW( buffer, MAX_PATH );
 322     p = buffer + strlenW(buffer);
 323     *p++ = '\\';
 324     lstrcpyW(p, wszAllCpl);
 325
 326     if ((h = FindFirstFileW(buffer, &fd)) != INVALID_HANDLE_VALUE) {
 327         do {
 328            lstrcpyW(p, fd.cFileName);
 329            Control_LoadApplet(hWnd, buffer, panel);
 330         } while (FindNextFileW(h, &fd));
 331         FindClose(h);
 332     }
 333
 334     Control_DoInterface(panel, hWnd, hInst);
 335 }
 336
 337 static  void    Control_DoLaunch(CPanel* panel, HWND hWnd, LPCWSTR wszCmd)
 338    /* forms to parse:
 339     *   foo.cpl,@sp,str
 340     *   foo.cpl,@sp
 341     *   foo.cpl,,str
 342     *   foo.cpl @sp
 343     *   foo.cpl str
 344     *   "a path\foo.cpl"
 345     */
 346 {
 347     LPWSTR      buffer;
 348     LPWSTR      beg = NULL;
 349     LPWSTR      end;
 350     WCHAR       ch;
 351     LPWSTR       ptr;
 352     unsigned    sp = 0;
 353     LPWSTR      extraPmts = NULL;
 354     int        quoted = 0;
 355
 356     buffer = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(wszCmd) + 1) * sizeof(*wszCmd));
 357     if (!buffer) return;
 358
 359     end = lstrcpyW(buffer, wszCmd);
 360
 361     for (;;) {
 362         ch = *end;
 363         if (ch == '"') quoted = !quoted;
 364         if (!quoted && (ch == ' ' || ch == ',' || ch == '\0')) {
 365             *end = '\0';
 366             if (beg) {
 367                 if (*beg == '@') {
 368                     sp = atoiW(beg + 1);
 369                 } else if (*beg == '\0') {
 370                     sp = 0;
 371                 } else {
 372                     extraPmts = beg;
 373                 }
 374             }
 375             if (ch == '\0') break;
 376             beg = end + 1;
 377             if (ch == ' ') while (end[1] == ' ') end++;
 378         }
 379         end++;
 380     }
 381     while ((ptr = StrChrW(buffer, '"')))
 382         memmove(ptr, ptr+1, lstrlenW(ptr)*sizeof(WCHAR));
 383
 384     TRACE("cmd %s, extra %s, sp %d\n", debugstr_w(buffer), debugstr_w(extraPmts), sp);
 385
 386     Control_LoadApplet(hWnd, buffer, panel);
 387
 388     if (panel->first) {
 389        CPlApplet* applet = panel->first;
 390
 391        assert(applet && applet->next == NULL);
 392        if (sp >= applet->count) {
 393           WARN("Out of bounds (%u >= %u), setting to 0\n", sp, applet->count);
 394           sp = 0;
 395        }
 396        if (applet->info[sp].dwSize) {
 397           if (!applet->proc(applet->hWnd, CPL_STARTWPARMSA, sp, (LPARAM)extraPmts))
 398              applet->proc(applet->hWnd, CPL_DBLCLK, sp, applet->info[sp].lData);
 399        }
 400        Control_UnloadApplet(applet);
 401     }
 402     HeapFree(GetProcessHeap(), 0, buffer);
 403 }
 404
 405 /*************************************************************************
 406  * Control_RunDLLW                      [SHELL32.@]
 407  *
 408  */
 409 void WINAPI Control_RunDLLW(HWND hWnd, HINSTANCE hInst, LPCWSTR cmd, DWORD nCmdShow)
 410 {
 411     CPanel      panel;
 412
 413     TRACE("(%p, %p, %s, 0x%08x)\n",
 414           hWnd, hInst, debugstr_w(cmd), nCmdShow);
 415
 416     memset(&panel, 0, sizeof(panel));
 417
 418     if (!cmd || !*cmd) {
 419         Control_DoWindow(&panel, hWnd, hInst);
 420     } else {
 421         Control_DoLaunch(&panel, hWnd, cmd);
 422     }
 423 }
 424
 425 /*************************************************************************
 426  * Control_RunDLLA                      [SHELL32.@]
 427  *
 428  */
 429 void WINAPI Control_RunDLLA(HWND hWnd, HINSTANCE hInst, LPCSTR cmd, DWORD nCmdShow)
 430 {
 431     DWORD len = MultiByteToWideChar(CP_ACP, 0, cmd, -1, NULL, 0 );
 432     LPWSTR wszCmd = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 433     if (wszCmd && MultiByteToWideChar(CP_ACP, 0, cmd, -1, wszCmd, len ))
 434     {
 435         Control_RunDLLW(hWnd, hInst, wszCmd, nCmdShow);
 436     }
 437     HeapFree(GetProcessHeap(), 0, wszCmd);
 438 }
 439
 440 /*************************************************************************
 441  * Control_FillCache_RunDLLW                    [SHELL32.@]
 442  *
 443  */
 444 HRESULT WINAPI Control_FillCache_RunDLLW(HWND hWnd, HANDLE hModule, DWORD w, DWORD x)
 445 {
 446     FIXME("%p %p 0x%08x 0x%08x stub\n", hWnd, hModule, w, x);
 447     return 0;
 448 }
 449
 450 /*************************************************************************
 451  * Control_FillCache_RunDLLA                    [SHELL32.@]
 452  *
 453  */
 454 HRESULT WINAPI Control_FillCache_RunDLLA(HWND hWnd, HANDLE hModule, DWORD w, DWORD x)
 455 {
 456     return Control_FillCache_RunDLLW(hWnd, hModule, w, x);
 457 }
 458
 459
 460 /*************************************************************************
 461  * RunDLL_CallEntry16                           [SHELL32.122]
 462  * the name is probably wrong
 463  */
 464 void WINAPI RunDLL_CallEntry16( DWORD proc, HWND hwnd, HINSTANCE inst,
 465                                 LPCSTR cmdline, INT cmdshow )
 466 {
 467     WORD args[5];
 468     SEGPTR cmdline_seg;
 469
 470     TRACE( "proc %x hwnd %p inst %p cmdline %s cmdshow %d\n",
 471            proc, hwnd, inst, debugstr_a(cmdline), cmdshow );
 472
 473     cmdline_seg = MapLS( cmdline );
 474     args[4] = HWND_16(hwnd);
 475     args[3] = MapHModuleLS(inst);
 476     args[2] = SELECTOROF(cmdline_seg);
 477     args[1] = OFFSETOF(cmdline_seg);
 478     args[0] = cmdshow;
 479     WOWCallback16Ex( proc, WCB16_PASCAL, sizeof(args), args, NULL );
 480     UnMapLS( cmdline_seg );
 481 }
 482
 483 /*************************************************************************
 484  * CallCPLEntry16                               [SHELL32.166]
 485  *
 486  * called by desk.cpl on "Advanced" with:
 487  * hMod("DeskCp16.Dll"), pFunc("CplApplet"), 0, 1, 0xc, 0
 488  *
 489  */
 490 DWORD WINAPI CallCPLEntry16(HMODULE hMod, FARPROC pFunc, DWORD dw3, DWORD dw4, DWORD dw5, DWORD dw6)
 491 {
 492     FIXME("(%p, %p, %08x, %08x, %08x, %08x): stub.\n", hMod, pFunc, dw3, dw4, dw5, dw6);
 493     return 0x0deadbee;
 494 }