windows/msgbox.c

   1 /*
   2  * Message boxes
   3  *
   4  * Copyright 1995 Bernd Schmidt
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <string.h>
  22
  23 #include "windef.h"
  24 #include "wingdi.h"
  25 #include "wine/winbase16.h"
  26 #include "wine/winuser16.h"
  27 #include "winternl.h"
  28 #include "dlgs.h"
  29 #include "heap.h"
  30 #include "user.h"
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(dialog);
  34
  35 #define MSGBOX_IDICON 1088
  36 #define MSGBOX_IDTEXT 100
  37 #define IDS_ERROR     2
  38
  39 static HFONT MSGBOX_OnInit(HWND hwnd, LPMSGBOXPARAMSW lpmb)
  40 {
  41     HFONT hFont = 0, hPrevFont = 0;
  42     RECT rect;
  43     HWND hItem;
  44     HDC hdc;
  45     int i, buttons;
  46     int bspace, bw, bh, theight, tleft, wwidth, wheight, bpos;
  47     int borheight, borwidth, iheight, ileft, iwidth, twidth, tiheight;
  48     LPCWSTR lpszText;
  49     WCHAR buf[256];
  50
  51     if (TWEAK_WineLook >= WIN95_LOOK) {
  52         NONCLIENTMETRICSW nclm;
  53         nclm.cbSize = sizeof(nclm);
  54         SystemParametersInfoW (SPI_GETNONCLIENTMETRICS, 0, &nclm, 0);
  55         hFont = CreateFontIndirectW (&nclm.lfMessageFont);
  56         /* set button font */
  57         for (i=1; i < 8; i++)
  58             SendDlgItemMessageW (hwnd, i, WM_SETFONT, (WPARAM)hFont, 0);
  59         /* set text font */
  60         SendDlgItemMessageW (hwnd, MSGBOX_IDTEXT, WM_SETFONT, (WPARAM)hFont, 0);
  61     }
  62     if (HIWORD(lpmb->lpszCaption)) {
  63        SetWindowTextW(hwnd, lpmb->lpszCaption);
  64     } else {
  65        UINT res_id = LOWORD(lpmb->lpszCaption);
  66        if (res_id)
  67        {
  68            if (LoadStringW(lpmb->hInstance, res_id, buf, 256))
  69                SetWindowTextW(hwnd, buf);
  70        }
  71        else
  72        {
  73            if (LoadStringW(GetModuleHandleA("user32.dll"), IDS_ERROR, buf, 256))
  74                SetWindowTextW(hwnd, buf);
  75        }
  76     }
  77     if (HIWORD(lpmb->lpszText)) {
  78        lpszText = lpmb->lpszText;
  79     } else {
  80        lpszText = buf;
  81        if (!LoadStringW(lpmb->hInstance, LOWORD(lpmb->lpszText), buf, 256))
  82           *buf = 0;     /* FIXME ?? */
  83     }
  84     SetWindowTextW(GetDlgItem(hwnd, MSGBOX_IDTEXT), lpszText);
  85
  86     /* Hide not selected buttons */
  87     switch(lpmb->dwStyle & MB_TYPEMASK) {
  88     case MB_OK:
  89         ShowWindow(GetDlgItem(hwnd, IDCANCEL), SW_HIDE);
  90         /* fall through */
  91     case MB_OKCANCEL:
  92         ShowWindow(GetDlgItem(hwnd, IDABORT), SW_HIDE);
  93         ShowWindow(GetDlgItem(hwnd, IDRETRY), SW_HIDE);
  94         ShowWindow(GetDlgItem(hwnd, IDIGNORE), SW_HIDE);
  95         ShowWindow(GetDlgItem(hwnd, IDYES), SW_HIDE);
  96         ShowWindow(GetDlgItem(hwnd, IDNO), SW_HIDE);
  97         break;
  98     case MB_ABORTRETRYIGNORE:
  99         ShowWindow(GetDlgItem(hwnd, IDOK), SW_HIDE);
 100         ShowWindow(GetDlgItem(hwnd, IDCANCEL), SW_HIDE);
 101         ShowWindow(GetDlgItem(hwnd, IDYES), SW_HIDE);
 102         ShowWindow(GetDlgItem(hwnd, IDNO), SW_HIDE);
 103         break;
 104     case MB_YESNO:
 105         ShowWindow(GetDlgItem(hwnd, IDCANCEL), SW_HIDE);
 106         /* fall through */
 107     case MB_YESNOCANCEL:
 108         ShowWindow(GetDlgItem(hwnd, IDOK), SW_HIDE);
 109         ShowWindow(GetDlgItem(hwnd, IDABORT), SW_HIDE);
 110         ShowWindow(GetDlgItem(hwnd, IDRETRY), SW_HIDE);
 111         ShowWindow(GetDlgItem(hwnd, IDIGNORE), SW_HIDE);
 112         break;
 113     case MB_RETRYCANCEL:
 114         ShowWindow(GetDlgItem(hwnd, IDOK), SW_HIDE);
 115         ShowWindow(GetDlgItem(hwnd, IDABORT), SW_HIDE);
 116         ShowWindow(GetDlgItem(hwnd, IDIGNORE), SW_HIDE);
 117         ShowWindow(GetDlgItem(hwnd, IDYES), SW_HIDE);
 118         ShowWindow(GetDlgItem(hwnd, IDNO), SW_HIDE);
 119         break;
 120     }
 121     /* Set the icon */
 122     switch(lpmb->dwStyle & MB_ICONMASK) {
 123     case MB_ICONEXCLAMATION:
 124         SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 125                             (WPARAM)LoadIconW(0, IDI_EXCLAMATIONW), 0);
 126         break;
 127     case MB_ICONQUESTION:
 128         SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 129                             (WPARAM)LoadIconW(0, IDI_QUESTIONW), 0);
 130         break;
 131     case MB_ICONASTERISK:
 132         SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 133                             (WPARAM)LoadIconW(0, IDI_ASTERISKW), 0);
 134         break;
 135     case MB_ICONHAND:
 136       SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 137                             (WPARAM)LoadIconW(0, IDI_HANDW), 0);
 138       break;
 139     case MB_USERICON:
 140       SendDlgItemMessageW(hwnd, stc1, STM_SETICON,
 141                           (WPARAM)LoadIconW(lpmb->hInstance, lpmb->lpszIcon), 0);
 142       break;
 143     default:
 144         /* By default, Windows 95/98/NT do not associate an icon to message boxes.
 145          * So wine should do the same.
 146          */
 147         break;
 148     }
 149
 150     /* Position everything */
 151     GetWindowRect(hwnd, &rect);
 152     borheight = rect.bottom - rect.top;
 153     borwidth  = rect.right - rect.left;
 154     GetClientRect(hwnd, &rect);
 155     borheight -= rect.bottom - rect.top;
 156     borwidth  -= rect.right - rect.left;
 157
 158     /* Get the icon height */
 159     GetWindowRect(GetDlgItem(hwnd, MSGBOX_IDICON), &rect);
 160     MapWindowPoints(0, hwnd, (LPPOINT)&rect, 2);
 161     if (!(lpmb->dwStyle & MB_ICONMASK))
 162     {
 163         rect.bottom = rect.top;
 164         rect.right = rect.left;
 165     }
 166     iheight = rect.bottom - rect.top;
 167     ileft = rect.left;
 168     iwidth = rect.right - ileft;
 169
 170     hdc = GetDC(hwnd);
 171     if (hFont)
 172         hPrevFont = SelectObject(hdc, hFont);
 173
 174     /* Get the number of visible buttons and their size */
 175     bh = bw = 1; /* Minimum button sizes */
 176     for (buttons = 0, i = 1; i < 8; i++)
 177     {
 178         hItem = GetDlgItem(hwnd, i);
 179         if (GetWindowLongW(hItem, GWL_STYLE) & WS_VISIBLE)
 180         {
 181             WCHAR buttonText[1024];
 182             int w, h;
 183             buttons++;
 184             if (GetWindowTextW(hItem, buttonText, 1024))
 185             {
 186                 DrawTextW( hdc, buttonText, -1, &rect, DT_LEFT | DT_EXPANDTABS | DT_CALCRECT);
 187                 h = rect.bottom - rect.top;
 188                 w = rect.right - rect.left;
 189                 if (h > bh) bh = h;
 190                 if (w > bw)  bw = w ;
 191             }
 192         }
 193     }
 194     bw = max(bw, bh * 2);
 195     /* Button white space */
 196     bh = bh * 2;
 197     bw = bw * 2;
 198     bspace = bw/3; /* Space between buttons */
 199
 200     /* Get the text size */
 201     GetClientRect(GetDlgItem(hwnd, MSGBOX_IDTEXT), &rect);
 202     rect.top = rect.left = rect.bottom = 0;
 203     DrawTextW( hdc, lpszText, -1, &rect,
 204                DT_LEFT | DT_EXPANDTABS | DT_WORDBREAK | DT_CALCRECT);
 205     /* Min text width corresponds to space for the buttons */
 206     tleft = ileft;
 207     if (iwidth) tleft += ileft + iwidth;
 208     twidth = max((bw + bspace) * buttons + bspace - tleft, rect.right);
 209     theight = rect.bottom;
 210
 211     if (hFont)
 212         SelectObject(hdc, hPrevFont);
 213     ReleaseDC(hItem, hdc);
 214
 215     tiheight = 16 + max(iheight, theight);
 216     wwidth  = tleft + twidth + ileft + borwidth;
 217     wheight = 8 + tiheight + bh + borheight;
 218
 219     /* Resize the window */
 220     SetWindowPos(hwnd, 0, 0, 0, wwidth, wheight,
 221                  SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
 222
 223     /* Position the icon */
 224     SetWindowPos(GetDlgItem(hwnd, MSGBOX_IDICON), 0, ileft, (tiheight - iheight) / 2, 0, 0,
 225                  SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
 226
 227     /* Position the text */
 228     SetWindowPos(GetDlgItem(hwnd, MSGBOX_IDTEXT), 0, tleft, (tiheight - theight) / 2, twidth, theight,
 229                  SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
 230
 231     /* Position the buttons */
 232     bpos = (wwidth - (bw + bspace) * buttons + bspace) / 2;
 233     for (buttons = i = 0; i < 7; i++) {
 234         /* some arithmetic to get the right order for YesNoCancel windows */
 235         hItem = GetDlgItem(hwnd, (i + 5) % 7 + 1);
 236         if (GetWindowLongW(hItem, GWL_STYLE) & WS_VISIBLE) {
 237             if (buttons++ == ((lpmb->dwStyle & MB_DEFMASK) >> 8)) {
 238                 SetFocus(hItem);
 239                 SendMessageW( hItem, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE );
 240             }
 241             SetWindowPos(hItem, 0, bpos, tiheight, bw, bh,
 242                          SWP_NOZORDER|SWP_NOACTIVATE|SWP_NOREDRAW);
 243             bpos += bw + bspace;
 244         }
 245     }
 246
 247     /* handle modal MessageBoxes */
 248     if (lpmb->dwStyle & (MB_TASKMODAL|MB_SYSTEMMODAL))
 249     {
 250         FIXME("%s modal msgbox ! Not modal yet.\n",
 251                 lpmb->dwStyle & MB_TASKMODAL ? "task" : "system");
 252         /* Probably do EnumTaskWindows etc. here for TASKMODAL
 253          * and work your way up to the top - I'm lazy (HWND_TOP) */
 254         SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0,
 255                         SWP_NOSIZE | SWP_NOMOVE);
 256         if (lpmb->dwStyle & MB_TASKMODAL)
 257             /* at least MB_TASKMODAL seems to imply a ShowWindow */
 258             ShowWindow(hwnd, SW_SHOW);
 259     }
 260     if (lpmb->dwStyle & MB_APPLMODAL)
 261         FIXME("app modal msgbox ! Not modal yet.\n");
 262
 263     return hFont;
 264 }
 265
 266
 267 /**************************************************************************
 268  *           MSGBOX_DlgProc
 269  *
 270  * Dialog procedure for message boxes.
 271  */
 272 static INT_PTR CALLBACK MSGBOX_DlgProc( HWND hwnd, UINT message,
 273                                         WPARAM wParam, LPARAM lParam )
 274 {
 275   HFONT hFont;
 276
 277   switch(message) {
 278    case WM_INITDIALOG:
 279    {
 280        LPMSGBOXPARAMSW mbp = (LPMSGBOXPARAMSW)lParam;
 281        SetWindowContextHelpId(hwnd, mbp->dwContextHelpId);
 282        hFont = MSGBOX_OnInit(hwnd, mbp);
 283        SetPropA(hwnd, "WINE_MSGBOX_HFONT", (HANDLE)hFont);
 284        SetPropA(hwnd, "WINE_MSGBOX_HELPCALLBACK", (HANDLE)mbp->lpfnMsgBoxCallback);
 285        break;
 286    }
 287
 288    case WM_COMMAND:
 289     switch (wParam)
 290     {
 291      case IDOK:
 292      case IDCANCEL:
 293      case IDABORT:
 294      case IDRETRY:
 295      case IDIGNORE:
 296      case IDYES:
 297      case IDNO:
 298       hFont = GetPropA(hwnd, "WINE_MSGBOX_HFONT");
 299       EndDialog(hwnd, wParam);
 300       if (hFont)
 301           DeleteObject(hFont);
 302       break;
 303     }
 304     break;
 305
 306     case WM_HELP:
 307     {
 308         MSGBOXCALLBACK callback = (MSGBOXCALLBACK)GetPropA(hwnd, "WINE_MSGBOX_HELPCALLBACK");
 309         HELPINFO hi;
 310
 311         memcpy(&hi, (void *)lParam, sizeof(hi));
 312         hi.dwContextId = GetWindowContextHelpId(hwnd);
 313
 314         if (callback)
 315             callback(&hi);
 316         else
 317             SendMessageW(GetWindow(hwnd, GW_OWNER), WM_HELP, 0, (LPARAM)&hi);
 318         break;
 319    }
 320
 321    default:
 322      /* Ok. Ignore all the other messages */
 323      TRACE("Message number 0x%04x is being ignored.\n", message);
 324     break;
 325   }
 326   return 0;
 327 }
 328
 329
 330 /**************************************************************************
 331  *              MessageBoxA (USER32.@)
 332  *
 333  * NOTES
 334  *   The WARN is here to help debug erroneous MessageBoxes
 335  *   Use: -debugmsg warn+dialog,+relay
 336  */
 337 INT WINAPI MessageBoxA(HWND hWnd, LPCSTR text, LPCSTR title, UINT type)
 338 {
 339     return MessageBoxExA(hWnd, text, title, type, LANG_NEUTRAL);
 340 }
 341
 342
 343 /**************************************************************************
 344  *              MessageBoxW (USER32.@)
 345  */
 346 INT WINAPI MessageBoxW( HWND hwnd, LPCWSTR text, LPCWSTR title, UINT type )
 347 {
 348     return MessageBoxExW(hwnd, text, title, type, LANG_NEUTRAL);
 349 }
 350
 351
 352 /**************************************************************************
 353  *              MessageBoxExA (USER32.@)
 354  */
 355 INT WINAPI MessageBoxExA( HWND hWnd, LPCSTR text, LPCSTR title,
 356                               UINT type, WORD langid )
 357 {
 358     MSGBOXPARAMSA msgbox;
 359
 360     msgbox.cbSize = sizeof(msgbox);
 361     msgbox.hwndOwner = hWnd;
 362     msgbox.hInstance = 0;
 363     msgbox.lpszText = text;
 364     msgbox.lpszCaption = title;
 365     msgbox.dwStyle = type;
 366     msgbox.lpszIcon = NULL;
 367     msgbox.dwContextHelpId = 0;
 368     msgbox.lpfnMsgBoxCallback = NULL;
 369     msgbox.dwLanguageId = langid;
 370
 371     return MessageBoxIndirectA(&msgbox);
 372 }
 373
 374 /**************************************************************************
 375  *              MessageBoxExW (USER32.@)
 376  */
 377 INT WINAPI MessageBoxExW( HWND hWnd, LPCWSTR text, LPCWSTR title,
 378                               UINT type, WORD langid )
 379 {
 380     MSGBOXPARAMSW msgbox;
 381
 382     msgbox.cbSize = sizeof(msgbox);
 383     msgbox.hwndOwner = hWnd;
 384     msgbox.hInstance = 0;
 385     msgbox.lpszText = text;
 386     msgbox.lpszCaption = title;
 387     msgbox.dwStyle = type;
 388     msgbox.lpszIcon = NULL;
 389     msgbox.dwContextHelpId = 0;
 390     msgbox.lpfnMsgBoxCallback = NULL;
 391     msgbox.dwLanguageId = langid;
 392
 393     return MessageBoxIndirectW(&msgbox);
 394 }
 395
 396 /**************************************************************************
 397  *              MessageBoxIndirectA (USER32.@)
 398  */
 399 INT WINAPI MessageBoxIndirectA( LPMSGBOXPARAMSA msgbox )
 400 {
 401     MSGBOXPARAMSW msgboxW;
 402     UNICODE_STRING textW, captionW, iconW;
 403     int ret;
 404
 405     if (HIWORD(msgbox->lpszText))
 406         RtlCreateUnicodeStringFromAsciiz(&textW, msgbox->lpszText);
 407     else
 408         textW.Buffer = (LPWSTR)msgbox->lpszText;
 409     if (HIWORD(msgbox->lpszCaption))
 410         RtlCreateUnicodeStringFromAsciiz(&captionW, msgbox->lpszCaption);
 411     else
 412         captionW.Buffer = (LPWSTR)msgbox->lpszCaption;
 413     if (HIWORD(msgbox->lpszIcon))
 414         RtlCreateUnicodeStringFromAsciiz(&iconW, msgbox->lpszIcon);
 415     else
 416         iconW.Buffer = (LPWSTR)msgbox->lpszIcon;
 417
 418     msgboxW.cbSize = sizeof(msgboxW);
 419     msgboxW.hwndOwner = msgbox->hwndOwner;
 420     msgboxW.hInstance = msgbox->hInstance;
 421     msgboxW.lpszText = textW.Buffer;
 422     msgboxW.lpszCaption = captionW.Buffer;
 423     msgboxW.dwStyle = msgbox->dwStyle;
 424     msgboxW.lpszIcon = iconW.Buffer;
 425     msgboxW.dwContextHelpId = msgbox->dwContextHelpId;
 426     msgboxW.lpfnMsgBoxCallback = msgbox->lpfnMsgBoxCallback;
 427     msgboxW.dwLanguageId = msgbox->dwLanguageId;
 428
 429     ret = MessageBoxIndirectW(&msgboxW);
 430
 431     if (HIWORD(textW.Buffer)) RtlFreeUnicodeString(&textW);
 432     if (HIWORD(captionW.Buffer)) RtlFreeUnicodeString(&captionW);
 433     if (HIWORD(iconW.Buffer)) RtlFreeUnicodeString(&iconW);
 434     return ret;
 435 }
 436
 437 /**************************************************************************
 438  *              MessageBoxIndirectW (USER32.@)
 439  */
 440 INT WINAPI MessageBoxIndirectW( LPMSGBOXPARAMSW msgbox )
 441 {
 442     LPVOID tmplate;
 443     HRSRC hRes;
 444     HMODULE hUser32;
 445     static const WCHAR user32_res_nameW[] = { 'u','s','e','r','3','2','.','d','l','l',0 };
 446     static const WCHAR msg_box_res_nameW[] = { 'M','S','G','B','O','X',0 };
 447
 448     hUser32 = GetModuleHandleW(user32_res_nameW);
 449     if (!(hRes = FindResourceExW(hUser32, RT_DIALOGW, msg_box_res_nameW, msgbox->dwLanguageId)))
 450         return 0;
 451     if (!(tmplate = (LPVOID)LoadResource(hUser32, hRes)))
 452         return 0;
 453
 454     return DialogBoxIndirectParamW(msgbox->hInstance, tmplate, msgbox->hwndOwner,
 455                                    MSGBOX_DlgProc, (LPARAM)msgbox);
 456 }