dlls/user32/msgbox.c

   1 /*
   2  * Message boxes
   3  *
   4  * Copyright 1995 Bernd Schmidt
   5  * Copyright 2004 Ivan Leo Puoti, Juan Lang
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include <stdlib.h>
  23 #include <stdarg.h>
  24 #include <string.h>
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "wingdi.h"
  29 #include "wine/winbase16.h"
  30 #include "wine/winuser16.h"
  31 #include "winreg.h"
  32 #include "winternl.h"
  33 #include "dlgs.h"
  34 #include "user_private.h"
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(dialog);
  38 WINE_DECLARE_DEBUG_CHANNEL(msgbox);
  39
  40 #define MSGBOX_IDICON 1088
  41 #define MSGBOX_IDTEXT 100
  42 #define IDS_ERROR     2
  43
  44 struct ThreadWindows
  45 {
  46     UINT numHandles;
  47     UINT numAllocs;
  48     HWND *handles;
  49 };
  50
  51 static BOOL CALLBACK MSGBOX_EnumProc(HWND hwnd, LPARAM lParam)
  52 {
  53     struct ThreadWindows *threadWindows = (struct ThreadWindows *)lParam;
  54
  55     if (!EnableWindow(hwnd, FALSE))
  56     {
  57         if(threadWindows->numHandles >= threadWindows->numAllocs)
  58         {
  59             threadWindows->handles = HeapReAlloc(GetProcessHeap(), 0, threadWindows->handles,
  60                                                  (threadWindows->numAllocs*2)*sizeof(HWND));
  61             threadWindows->numAllocs *= 2;
  62         }
  63         threadWindows->handles[threadWindows->numHandles++]=hwnd;
  64     }
  65    return TRUE;
  66 }
  67
  68 static HFONT MSGBOX_OnInit(HWND hwnd, LPMSGBOXPARAMSW lpmb)
  69 {
  70     HFONT hFont = 0, hPrevFont = 0;
  71     RECT rect;
  72     HWND hItem;
  73     HDC hdc;
  74     int i, buttons;
  75     int bspace, bw, bh, theight, tleft, wwidth, wheight, bpos;
  76     int borheight, borwidth, iheight, ileft, iwidth, twidth, tiheight;
  77     NONCLIENTMETRICSW nclm;
  78     LPCWSTR lpszText;
  79     WCHAR buf[256];
  80
  81     nclm.cbSize = sizeof(nclm);
  82     SystemParametersInfoW (SPI_GETNONCLIENTMETRICS, 0, &nclm, 0);
  83     hFont = CreateFontIndirectW (&nclm.lfMessageFont);
  84     /* set button font */
  85     for (i=1; i < 8; i++)
  86         SendDlgItemMessageW (hwnd, i, WM_SETFONT, (WPARAM)hFont, 0);
  87     /* set text font */
  88     SendDlgItemMessageW (hwnd, MSGBOX_IDTEXT, WM_SETFONT, (WPARAM)hFont, 0);
  89
  90     if (HIWORD(lpmb->lpszCaption)) {
  91        SetWindowTextW(hwnd, lpmb->lpszCaption);
  92     } else {
  93        UINT res_id = LOWORD(lpmb->lpszCaption);
  94        if (res_id)
  95        {
  96            if (LoadStringW(lpmb->hInstance, res_id, buf, 256))
  97                SetWindowTextW(hwnd, buf);
  98        }
  99        else
 100        {
 101            if (LoadStringW(user32_module, IDS_ERROR, buf, 256))
 102                SetWindowTextW(hwnd, buf);
 103        }
 104     }
 105     if (HIWORD(lpmb->lpszText)) {
 106        lpszText = lpmb->lpszText;
 107     } else {
 108        lpszText = buf;
 109        if (!LoadStringW(lpmb->hInstance, LOWORD(lpmb->lpszText), buf, 256))
 110           *buf = 0;     /* FIXME ?? */
 111     }
 112
 113     TRACE_(msgbox)("%s\n", debugstr_w(lpszText));
 114     SetWindowTextW(GetDlgItem(hwnd, MSGBOX_IDTEXT), lpszText);
 115
 116     /* Hide not selected buttons */
 117     switch(lpmb->dwStyle & MB_TYPEMASK) {
 118     case MB_OK:
 119         ShowWindow(GetDlgItem(hwnd, IDCANCEL), SW_HIDE);
 120         /* fall through */
 121     case MB_OKCANCEL:
 122         ShowWindow(GetDlgItem(hwnd, IDABORT), SW_HIDE);
 123         ShowWindow(GetDlgItem(hwnd, IDRETRY), SW_HIDE);
 124         ShowWindow(GetDlgItem(hwnd, IDIGNORE), SW_HIDE);
 125         ShowWindow(GetDlgItem(hwnd, IDYES), SW_HIDE);
 126         ShowWindow(GetDlgItem(hwnd, IDNO), SW_HIDE);
 127         break;
 128     case MB_ABORTRETRYIGNORE:
 129         ShowWindow(GetDlgItem(hwnd, IDOK), SW_HIDE);
 130         ShowWindow(GetDlgItem(hwnd, IDCANCEL), SW_HIDE);
 131         ShowWindow(GetDlgItem(hwnd, IDYES), SW_HIDE);
 132         ShowWindow(GetDlgItem(hwnd, IDNO), SW_HIDE);
 133         break;
 134     case MB_YESNO:
 135         ShowWindow(GetDlgItem(hwnd, IDCANCEL), SW_HIDE);
 136         /* fall through */
 137     case MB_YESNOCANCEL:
 138         ShowWindow(GetDlgItem(hwnd, IDOK), SW_HIDE);
 139         ShowWindow(GetDlgItem(hwnd, IDABORT), SW_HIDE);
 140         ShowWindow(GetDlgItem(hwnd, IDRETRY), SW_HIDE);
 141         ShowWindow(GetDlgItem(hwnd, IDIGNORE), SW_HIDE);
 142         break;
 143     case MB_RETRYCANCEL:
 144         ShowWindow(GetDlgItem(hwnd, IDOK), SW_HIDE);
 145         ShowWindow(GetDlgItem(hwnd, IDABORT), SW_HIDE);
 146         ShowWindow(GetDlgItem(hwnd, IDIGNORE), SW_HIDE);
 147         ShowWindow(GetDlgItem(hwnd, IDYES), SW_HIDE);
 148         ShowWindow(GetDlgItem(hwnd, IDNO), SW_HIDE);
 149         break;
 150     }
 151     /* Set the icon */
 152     switch(lpmb->dwStyle & MB_ICONMASK) {
 153     case MB_ICONEXCLAMATION:
 154         SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 155                             (WPARAM)LoadIconW(0, (LPWSTR)IDI_EXCLAMATION), 0);
 156         break;
 157     case MB_ICONQUESTION:
 158         SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 159                             (WPARAM)LoadIconW(0, (LPWSTR)IDI_QUESTION), 0);
 160         break;
 161     case MB_ICONASTERISK:
 162         SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 163                             (WPARAM)LoadIconW(0, (LPWSTR)IDI_ASTERISK), 0);
 164         break;
 165     case MB_ICONHAND:
 166       SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 167                             (WPARAM)LoadIconW(0, (LPWSTR)IDI_HAND), 0);
 168       break;
 169     case MB_USERICON:
 170       SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 171                           (WPARAM)LoadIconW(lpmb->hInstance, lpmb->lpszIcon), 0);
 172       break;
 173     default:
 174         /* By default, Windows 95/98/NT do not associate an icon to message boxes.
 175          * So wine should do the same.
 176          */
 177         break;
 178     }
 179
 180     /* Position everything */
 181     GetWindowRect(hwnd, &rect);
 182     borheight = rect.bottom - rect.top;
 183     borwidth  = rect.right - rect.left;
 184     GetClientRect(hwnd, &rect);
 185     borheight -= rect.bottom - rect.top;
 186     borwidth  -= rect.right - rect.left;
 187
 188     /* Get the icon height */
 189     GetWindowRect(GetDlgItem(hwnd, MSGBOX_IDICON), &rect);
 190     MapWindowPoints(0, hwnd, (LPPOINT)&rect, 2);
 191     if (!(lpmb->dwStyle & MB_ICONMASK))
 192     {
 193         rect.bottom = rect.top;
 194         rect.right = rect.left;
 195     }
 196     iheight = rect.bottom - rect.top;
 197     ileft = rect.left;
 198     iwidth = rect.right - ileft;
 199
 200     hdc = GetDC(hwnd);
 201     if (hFont)
 202         hPrevFont = SelectObject(hdc, hFont);
 203
 204     /* Get the number of visible buttons and their size */
 205     bh = bw = 1; /* Minimum button sizes */
 206     for (buttons = 0, i = 1; i < 8; i++)
 207     {
 208         hItem = GetDlgItem(hwnd, i);
 209         if (GetWindowLongW(hItem, GWL_STYLE) & WS_VISIBLE)
 210         {
 211             WCHAR buttonText[1024];
 212             int w, h;
 213             buttons++;
 214             if (GetWindowTextW(hItem, buttonText, 1024))
 215             {
 216                 DrawTextW( hdc, buttonText, -1, &rect, DT_LEFT | DT_EXPANDTABS | DT_CALCRECT);
 217                 h = rect.bottom - rect.top;
 218                 w = rect.right - rect.left;
 219                 if (h > bh) bh = h;
 220                 if (w > bw)  bw = w ;
 221             }
 222         }
 223     }
 224     bw = max(bw, bh * 2);
 225     /* Button white space */
 226     bh = bh * 2;
 227     bw = bw * 2;
 228     bspace = bw/3; /* Space between buttons */
 229
 230     /* Get the text size */
 231     GetClientRect(GetDlgItem(hwnd, MSGBOX_IDTEXT), &rect);
 232     rect.top = rect.left = rect.bottom = 0;
 233     DrawTextW( hdc, lpszText, -1, &rect,
 234                DT_LEFT | DT_EXPANDTABS | DT_WORDBREAK | DT_CALCRECT);
 235     /* Min text width corresponds to space for the buttons */
 236     tleft = ileft;
 237     if (iwidth) tleft += ileft + iwidth;
 238     twidth = max((bw + bspace) * buttons + bspace - tleft, rect.right);
 239     theight = rect.bottom;
 240
 241     if (hFont)
 242         SelectObject(hdc, hPrevFont);
 243     ReleaseDC(hwnd, hdc);
 244
 245     tiheight = 16 + max(iheight, theight);
 246     wwidth  = tleft + twidth + ileft + borwidth;
 247     wheight = 8 + tiheight + bh + borheight;
 248
 249     /* Resize the window */
 250     SetWindowPos(hwnd, 0, 0, 0, wwidth, wheight,
 251                  SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
 252
 253     /* Position the icon */
 254     SetWindowPos(GetDlgItem(hwnd, MSGBOX_IDICON), 0, ileft, (tiheight - iheight) / 2, 0, 0,
 255                  SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
 256
 257     /* Position the text */
 258     SetWindowPos(GetDlgItem(hwnd, MSGBOX_IDTEXT), 0, tleft, (tiheight - theight) / 2, twidth, theight,
 259                  SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
 260
 261     /* Position the buttons */
 262     bpos = (wwidth - (bw + bspace) * buttons + bspace) / 2;
 263     for (buttons = i = 0; i < 7; i++) {
 264         /* some arithmetic to get the right order for YesNoCancel windows */
 265         hItem = GetDlgItem(hwnd, (i + 5) % 7 + 1);
 266         if (GetWindowLongW(hItem, GWL_STYLE) & WS_VISIBLE) {
 267             if (buttons++ == ((lpmb->dwStyle & MB_DEFMASK) >> 8)) {
 268                 SetFocus(hItem);
 269                 SendMessageW( hItem, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE );
 270             }
 271             SetWindowPos(hItem, 0, bpos, tiheight, bw, bh,
 272                          SWP_NOZORDER|SWP_NOACTIVATE|SWP_NOREDRAW);
 273             bpos += bw + bspace;
 274         }
 275     }
 276
 277     /*handle modal message boxes*/
 278     if (((lpmb->dwStyle & MB_TASKMODAL) && (lpmb->hwndOwner==NULL)) || (lpmb->dwStyle & MB_SYSTEMMODAL))
 279         SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE);
 280
 281     return hFont;
 282 }
 283
 284
 285 /**************************************************************************
 286  *           MSGBOX_DlgProc
 287  *
 288  * Dialog procedure for message boxes.
 289  */
 290 static INT_PTR CALLBACK MSGBOX_DlgProc( HWND hwnd, UINT message,
 291                                         WPARAM wParam, LPARAM lParam )
 292 {
 293   HFONT hFont;
 294
 295   switch(message) {
 296    case WM_INITDIALOG:
 297    {
 298        LPMSGBOXPARAMSW mbp = (LPMSGBOXPARAMSW)lParam;
 299        SetWindowContextHelpId(hwnd, mbp->dwContextHelpId);
 300        hFont = MSGBOX_OnInit(hwnd, mbp);
 301        SetPropA(hwnd, "WINE_MSGBOX_HFONT", (HANDLE)hFont);
 302        SetPropA(hwnd, "WINE_MSGBOX_HELPCALLBACK", (HANDLE)mbp->lpfnMsgBoxCallback);
 303        break;
 304    }
 305
 306    case WM_COMMAND:
 307     switch (LOWORD(wParam))
 308     {
 309      case IDOK:
 310      case IDCANCEL:
 311      case IDABORT:
 312      case IDRETRY:
 313      case IDIGNORE:
 314      case IDYES:
 315      case IDNO:
 316       hFont = GetPropA(hwnd, "WINE_MSGBOX_HFONT");
 317       EndDialog(hwnd, wParam);
 318       if (hFont)
 319           DeleteObject(hFont);
 320       break;
 321     }
 322     break;
 323
 324     case WM_HELP:
 325     {
 326         MSGBOXCALLBACK callback = (MSGBOXCALLBACK)GetPropA(hwnd, "WINE_MSGBOX_HELPCALLBACK");
 327         HELPINFO hi;
 328
 329         memcpy(&hi, (void *)lParam, sizeof(hi));
 330         hi.dwContextId = GetWindowContextHelpId(hwnd);
 331
 332         if (callback)
 333             callback(&hi);
 334         else
 335             SendMessageW(GetWindow(hwnd, GW_OWNER), WM_HELP, 0, (LPARAM)&hi);
 336         break;
 337    }
 338
 339    default:
 340      /* Ok. Ignore all the other messages */
 341      TRACE("Message number 0x%04x is being ignored.\n", message);
 342     break;
 343   }
 344   return 0;
 345 }
 346
 347
 348 /**************************************************************************
 349  *              MessageBoxA (USER32.@)
 350  */
 351 INT WINAPI MessageBoxA(HWND hWnd, LPCSTR text, LPCSTR title, UINT type)
 352 {
 353     if (getenv("CX_HACK_SIEBELMSJVM"))
 354     {
 355         if (!hWnd && !strncmp("This application or DLL can not be loaded", text, 41))
 356             return MB_OK;
 357     }
 358     return MessageBoxExA(hWnd, text, title, type, LANG_NEUTRAL);
 359 }
 360
 361
 362 /**************************************************************************
 363  *              MessageBoxW (USER32.@)
 364  */
 365 INT WINAPI MessageBoxW( HWND hwnd, LPCWSTR text, LPCWSTR title, UINT type )
 366 {
 367     return MessageBoxExW(hwnd, text, title, type, LANG_NEUTRAL);
 368 }
 369
 370
 371 /**************************************************************************
 372  *              MessageBoxExA (USER32.@)
 373  */
 374 INT WINAPI MessageBoxExA( HWND hWnd, LPCSTR text, LPCSTR title,
 375                               UINT type, WORD langid )
 376 {
 377     MSGBOXPARAMSA msgbox;
 378
 379     msgbox.cbSize = sizeof(msgbox);
 380     msgbox.hwndOwner = hWnd;
 381     msgbox.hInstance = 0;
 382     msgbox.lpszText = text;
 383     msgbox.lpszCaption = title;
 384     msgbox.dwStyle = type;
 385     msgbox.lpszIcon = NULL;
 386     msgbox.dwContextHelpId = 0;
 387     msgbox.lpfnMsgBoxCallback = NULL;
 388     msgbox.dwLanguageId = langid;
 389
 390     return MessageBoxIndirectA(&msgbox);
 391 }
 392
 393 /**************************************************************************
 394  *              MessageBoxExW (USER32.@)
 395  */
 396 INT WINAPI MessageBoxExW( HWND hWnd, LPCWSTR text, LPCWSTR title,
 397                               UINT type, WORD langid )
 398 {
 399     MSGBOXPARAMSW msgbox;
 400
 401     msgbox.cbSize = sizeof(msgbox);
 402     msgbox.hwndOwner = hWnd;
 403     msgbox.hInstance = 0;
 404     msgbox.lpszText = text;
 405     msgbox.lpszCaption = title;
 406     msgbox.dwStyle = type;
 407     msgbox.lpszIcon = NULL;
 408     msgbox.dwContextHelpId = 0;
 409     msgbox.lpfnMsgBoxCallback = NULL;
 410     msgbox.dwLanguageId = langid;
 411
 412     return MessageBoxIndirectW(&msgbox);
 413 }
 414
 415 /**************************************************************************
 416  *              MessageBoxIndirectA (USER32.@)
 417  */
 418 INT WINAPI MessageBoxIndirectA( LPMSGBOXPARAMSA msgbox )
 419 {
 420     MSGBOXPARAMSW msgboxW;
 421     UNICODE_STRING textW, captionW, iconW;
 422     int ret;
 423
 424     if (HIWORD(msgbox->lpszText))
 425         RtlCreateUnicodeStringFromAsciiz(&textW, msgbox->lpszText);
 426     else
 427         textW.Buffer = (LPWSTR)msgbox->lpszText;
 428     if (HIWORD(msgbox->lpszCaption))
 429         RtlCreateUnicodeStringFromAsciiz(&captionW, msgbox->lpszCaption);
 430     else
 431         captionW.Buffer = (LPWSTR)msgbox->lpszCaption;
 432
 433     if (msgbox->dwStyle & MB_USERICON)
 434     {
 435         if (HIWORD(msgbox->lpszIcon))
 436             RtlCreateUnicodeStringFromAsciiz(&iconW, msgbox->lpszIcon);
 437         else
 438             iconW.Buffer = (LPWSTR)msgbox->lpszIcon;
 439     }
 440     else
 441         iconW.Buffer = NULL;
 442
 443     msgboxW.cbSize = sizeof(msgboxW);
 444     msgboxW.hwndOwner = msgbox->hwndOwner;
 445     msgboxW.hInstance = msgbox->hInstance;
 446     msgboxW.lpszText = textW.Buffer;
 447     msgboxW.lpszCaption = captionW.Buffer;
 448     msgboxW.dwStyle = msgbox->dwStyle;
 449     msgboxW.lpszIcon = iconW.Buffer;
 450     msgboxW.dwContextHelpId = msgbox->dwContextHelpId;
 451     msgboxW.lpfnMsgBoxCallback = msgbox->lpfnMsgBoxCallback;
 452     msgboxW.dwLanguageId = msgbox->dwLanguageId;
 453
 454     ret = MessageBoxIndirectW(&msgboxW);
 455
 456     if (HIWORD(textW.Buffer)) RtlFreeUnicodeString(&textW);
 457     if (HIWORD(captionW.Buffer)) RtlFreeUnicodeString(&captionW);
 458     if (HIWORD(iconW.Buffer)) RtlFreeUnicodeString(&iconW);
 459     return ret;
 460 }
 461
 462 /**************************************************************************
 463  *              MessageBoxIndirectW (USER32.@)
 464  */
 465 INT WINAPI MessageBoxIndirectW( LPMSGBOXPARAMSW msgbox )
 466 {
 467     LPVOID tmplate;
 468     HRSRC hRes;
 469     int ret;
 470     UINT i;
 471     struct ThreadWindows threadWindows;
 472     static const WCHAR msg_box_res_nameW[] = { 'M','S','G','B','O','X',0 };
 473
 474     if (!(hRes = FindResourceExW(user32_module, (LPWSTR)RT_DIALOG,
 475                                  msg_box_res_nameW, msgbox->dwLanguageId)))
 476         return 0;
 477     if (!(tmplate = (LPVOID)LoadResource(user32_module, hRes)))
 478         return 0;
 479
 480     if ((msgbox->dwStyle & MB_TASKMODAL) && (msgbox->hwndOwner==NULL))
 481     {
 482         threadWindows.numHandles = 0;
 483         threadWindows.numAllocs = 10;
 484         threadWindows.handles = HeapAlloc(GetProcessHeap(), 0, 10*sizeof(HWND));
 485         EnumThreadWindows(GetCurrentThreadId(), MSGBOX_EnumProc, (LPARAM)&threadWindows);
 486     }
 487
 488     ret=DialogBoxIndirectParamW(msgbox->hInstance, tmplate,
 489                                 msgbox->hwndOwner, MSGBOX_DlgProc, (LPARAM)msgbox);
 490
 491     if ((msgbox->dwStyle & MB_TASKMODAL) && (msgbox->hwndOwner==NULL))
 492     {
 493         for (i = 0; i < threadWindows.numHandles; i++)
 494             EnableWindow(threadWindows.handles[i], TRUE);
 495         HeapFree(GetProcessHeap(), 0, threadWindows.handles);
 496     }
 497     return ret;
 498 }