windows/defdlg.c

   1 /*
   2  * Default dialog procedure
   3  *
   4  * Copyright 1993, 1996 Alexandre Julliard
   5  *
   6  */
   7
   8 #include "windows.h"
   9 #include "dialog.h"
  10 #include "win.h"
  11 #include "winproc.h"
  12
  13
  14 /***********************************************************************
  15  *           DEFDLG_SetFocus
  16  *
  17  * Set the focus to a control of the dialog, selecting the text if
  18  * the control is an edit dialog.
  19  */
  20 static void DEFDLG_SetFocus( HWND32 hwndDlg, HWND32 hwndCtrl )
  21 {
  22     HWND32 hwndPrev = GetFocus32();
  23
  24     if (IsChild32( hwndDlg, hwndPrev ))
  25     {
  26         if (SendMessage16( hwndPrev, WM_GETDLGCODE, 0, 0 ) & DLGC_HASSETSEL)
  27             SendMessage16( hwndPrev, EM_SETSEL16, TRUE, MAKELONG( -1, 0 ) );
  28     }
  29     if (SendMessage16( hwndCtrl, WM_GETDLGCODE, 0, 0 ) & DLGC_HASSETSEL)
  30         SendMessage16( hwndCtrl, EM_SETSEL16, FALSE, MAKELONG( 0, -1 ) );
  31     SetFocus32( hwndCtrl );
  32 }
  33
  34
  35 /***********************************************************************
  36  *           DEFDLG_SaveFocus
  37  */
  38 static BOOL32 DEFDLG_SaveFocus( HWND32 hwnd, DIALOGINFO *infoPtr )
  39 {
  40     HWND32 hwndFocus = GetFocus32();
  41
  42     if (!hwndFocus || !IsChild32( hwnd, hwndFocus )) return FALSE;
  43     infoPtr->hwndFocus = hwndFocus;
  44       /* Remove default button */
  45     return TRUE;
  46 }
  47
  48
  49 /***********************************************************************
  50  *           DEFDLG_RestoreFocus
  51  */
  52 static BOOL32 DEFDLG_RestoreFocus( HWND32 hwnd, DIALOGINFO *infoPtr )
  53 {
  54     if (!infoPtr->hwndFocus || IsIconic32(hwnd)) return FALSE;
  55     if (!IsWindow32( infoPtr->hwndFocus )) return FALSE;
  56     DEFDLG_SetFocus( hwnd, infoPtr->hwndFocus );
  57     infoPtr->hwndFocus = 0;
  58     return TRUE;
  59 }
  60
  61
  62 /***********************************************************************
  63  *           DEFDLG_FindDefButton
  64  *
  65  * Find the current default push-button.
  66  */
  67 static HWND32 DEFDLG_FindDefButton( HWND32 hwndDlg )
  68 {
  69     HWND32 hwndChild = GetWindow32( hwndDlg, GW_CHILD );
  70     while (hwndChild)
  71     {
  72         if (SendMessage16( hwndChild, WM_GETDLGCODE, 0, 0 ) & DLGC_DEFPUSHBUTTON)
  73             break;
  74         hwndChild = GetWindow32( hwndChild, GW_HWNDNEXT );
  75     }
  76     return hwndChild;
  77 }
  78
  79
  80 /***********************************************************************
  81  *           DEFDLG_SetDefButton
  82  *
  83  * Set the new default button to be hwndNew.
  84  */
  85 static BOOL32 DEFDLG_SetDefButton( HWND32 hwndDlg, DIALOGINFO *dlgInfo,
  86                                    HWND32 hwndNew )
  87 {
  88     if (hwndNew &&
  89         !(SendMessage16(hwndNew, WM_GETDLGCODE, 0, 0 ) & DLGC_UNDEFPUSHBUTTON))
  90         return FALSE;  /* Destination is not a push button */
  91
  92     if (dlgInfo->idResult)  /* There's already a default pushbutton */
  93     {
  94         HWND32 hwndOld = GetDlgItem32( hwndDlg, dlgInfo->idResult );
  95         if (SendMessage32A( hwndOld, WM_GETDLGCODE, 0, 0) & DLGC_DEFPUSHBUTTON)
  96             SendMessage32A( hwndOld, BM_SETSTYLE32, BS_PUSHBUTTON, TRUE );
  97     }
  98     if (hwndNew)
  99     {
 100         SendMessage32A( hwndNew, BM_SETSTYLE32, BS_DEFPUSHBUTTON, TRUE );
 101         dlgInfo->idResult = GetDlgCtrlID32( hwndNew );
 102     }
 103     else dlgInfo->idResult = 0;
 104     return TRUE;
 105 }
 106
 107
 108 /***********************************************************************
 109  *           DEFDLG_Proc
 110  *
 111  * Implementation of DefDlgProc(). Only handle messages that need special
 112  * handling for dialogs.
 113  */
 114 static LRESULT DEFDLG_Proc( HWND32 hwnd, UINT32 msg, WPARAM32 wParam,
 115                             LPARAM lParam, DIALOGINFO *dlgInfo )
 116 {
 117     switch(msg)
 118     {
 119         case WM_ERASEBKGND:
 120             FillWindow( hwnd, hwnd, (HDC16)wParam, (HBRUSH16)CTLCOLOR_DLG );
 121             return 1;
 122
 123         case WM_NCDESTROY:
 124
 125               /* Free dialog heap (if created) */
 126             if (dlgInfo->hDialogHeap)
 127             {
 128                 GlobalUnlock16(dlgInfo->hDialogHeap);
 129                 GlobalFree16(dlgInfo->hDialogHeap);
 130                 dlgInfo->hDialogHeap = 0;
 131             }
 132
 133               /* Delete font */
 134             if (dlgInfo->hUserFont)
 135             {
 136                 DeleteObject32( dlgInfo->hUserFont );
 137                 dlgInfo->hUserFont = 0;
 138             }
 139
 140               /* Delete menu */
 141             if (dlgInfo->hMenu)
 142             {
 143                 DestroyMenu32( dlgInfo->hMenu );
 144                 dlgInfo->hMenu = 0;
 145             }
 146
 147             /* Delete window procedure */
 148             WINPROC_FreeProc( dlgInfo->dlgProc, WIN_PROC_WINDOW );
 149             dlgInfo->dlgProc = (HWINDOWPROC)0;
 150             dlgInfo->flags |= DF_END;  /* just in case */
 151
 152               /* Window clean-up */
 153             return DefWindowProc32A( hwnd, msg, wParam, lParam );
 154
 155         case WM_SHOWWINDOW:
 156             if (!wParam) DEFDLG_SaveFocus( hwnd, dlgInfo );
 157             return DefWindowProc32A( hwnd, msg, wParam, lParam );
 158
 159         case WM_ACTIVATE:
 160             if (wParam) DEFDLG_RestoreFocus( hwnd, dlgInfo );
 161             else DEFDLG_SaveFocus( hwnd, dlgInfo );
 162             return 0;
 163
 164         case WM_SETFOCUS:
 165             DEFDLG_RestoreFocus( hwnd, dlgInfo );
 166             return 0;
 167
 168         case DM_SETDEFID:
 169             if (dlgInfo->flags & DF_END) return 1;
 170             DEFDLG_SetDefButton( hwnd, dlgInfo,
 171                                  wParam ? GetDlgItem32( hwnd, wParam ) : 0 );
 172             return 1;
 173
 174         case DM_GETDEFID:
 175             {
 176                 HWND32 hwndDefId;
 177                 if (dlgInfo->flags & DF_END) return 0;
 178                 if (dlgInfo->idResult)
 179                     return MAKELONG( dlgInfo->idResult, DC_HASDEFID );
 180                 if ((hwndDefId = DEFDLG_FindDefButton( hwnd )))
 181                     return MAKELONG( GetDlgCtrlID32( hwndDefId ), DC_HASDEFID);
 182             }
 183             return 0;
 184
 185         case WM_NEXTDLGCTL:
 186             {
 187                 HWND32 hwndDest = (HWND32)wParam;
 188                 if (!lParam)
 189                     hwndDest = GetNextDlgTabItem32(hwnd, GetFocus32(), wParam);
 190                 if (hwndDest) DEFDLG_SetFocus( hwnd, hwndDest );
 191                 DEFDLG_SetDefButton( hwnd, dlgInfo, hwndDest );
 192             }
 193             return 0;
 194
 195         case WM_ENTERMENULOOP:
 196         case WM_LBUTTONDOWN:
 197         case WM_NCLBUTTONDOWN:
 198             {
 199                 HWND32 hwndFocus = GetFocus32();
 200                 if (hwndFocus)
 201                 {
 202                     WND *wnd = WIN_FindWndPtr( hwndFocus );
 203
 204                     if( wnd )
 205                     {
 206                         /* always make combo box hide its listbox control */
 207
 208                         if( WIDGETS_IsControl32( wnd, BIC32_COMBO ) )
 209                             SendMessage32A( hwndFocus, CB_SHOWDROPDOWN32,
 210                                             FALSE, 0 );
 211                         else if( WIDGETS_IsControl32( wnd, BIC32_EDIT ) &&
 212                                  WIDGETS_IsControl32( wnd->parent,
 213                                                       BIC32_COMBO ))
 214                             SendMessage32A( wnd->parent->hwndSelf,
 215                                             CB_SHOWDROPDOWN32, FALSE, 0 );
 216                     }
 217                 }
 218             }
 219             return DefWindowProc32A( hwnd, msg, wParam, lParam );
 220
 221         case WM_GETFONT:
 222             return dlgInfo->hUserFont;
 223
 224         case WM_CLOSE:
 225             EndDialog32( hwnd, TRUE );
 226             DestroyWindow32( hwnd );
 227             return 0;
 228     }
 229     return 0;
 230 }
 231
 232 /***********************************************************************
 233  *           DEFDLG_Epilog
 234  */
 235 static LRESULT DEFDLG_Epilog(DIALOGINFO* dlgInfo, UINT32 msg, BOOL16 fResult)
 236 {
 237     /* see SDK 3.1 */
 238
 239     if ((msg >= WM_CTLCOLORMSGBOX && msg <= WM_CTLCOLORSTATIC) ||
 240          msg == WM_CTLCOLOR || msg == WM_COMPAREITEM ||
 241          msg == WM_VKEYTOITEM || msg == WM_CHARTOITEM ||
 242          msg == WM_QUERYDRAGICON || msg == WM_INITDIALOG)
 243         return fResult;
 244
 245     return dlgInfo->msgResult;
 246 }
 247
 248 /***********************************************************************
 249  *           DefDlgProc16   (USER.308)
 250  */
 251 LRESULT DefDlgProc16( HWND16 hwnd, UINT16 msg, WPARAM16 wParam, LPARAM lParam )
 252 {
 253     DIALOGINFO * dlgInfo;
 254     BOOL16 result = FALSE;
 255     WND * wndPtr = WIN_FindWndPtr( hwnd );
 256
 257     if (!wndPtr) return 0;
 258     dlgInfo = (DIALOGINFO *)&wndPtr->wExtra;
 259     dlgInfo->msgResult = 0;
 260
 261     if (dlgInfo->dlgProc)       /* Call dialog procedure */
 262         result = (BOOL16)CallWindowProc16( (WNDPROC16)dlgInfo->dlgProc,
 263                                            hwnd, msg, wParam, lParam );
 264
 265     /* Check if window was destroyed by dialog procedure */
 266
 267     if (!result && IsWindow32(hwnd))
 268     {
 269         /* callback didn't process this message */
 270
 271         switch(msg)
 272         {
 273             case WM_ERASEBKGND:
 274             case WM_SHOWWINDOW:
 275             case WM_ACTIVATE:
 276             case WM_SETFOCUS:
 277             case DM_SETDEFID:
 278             case DM_GETDEFID:
 279             case WM_NEXTDLGCTL:
 280             case WM_GETFONT:
 281             case WM_CLOSE:
 282             case WM_NCDESTROY:
 283             case WM_ENTERMENULOOP:
 284             case WM_LBUTTONDOWN:
 285             case WM_NCLBUTTONDOWN:
 286                 return DEFDLG_Proc( (HWND32)hwnd, msg,
 287                                     (WPARAM32)wParam, lParam, dlgInfo );
 288             case WM_INITDIALOG:
 289             case WM_VKEYTOITEM:
 290             case WM_COMPAREITEM:
 291             case WM_CHARTOITEM:
 292                 break;
 293
 294             default:
 295                 return DefWindowProc16( hwnd, msg, wParam, lParam );
 296         }
 297     }
 298     return DEFDLG_Epilog(dlgInfo, msg, result);
 299 }
 300
 301
 302 /***********************************************************************
 303  *           DefDlgProc32A   (USER32.119)
 304  */
 305 LRESULT DefDlgProc32A( HWND32 hwnd, UINT32 msg, WPARAM32 wParam, LPARAM lParam)
 306 {
 307     DIALOGINFO * dlgInfo;
 308     BOOL16 result = FALSE;
 309     WND * wndPtr = WIN_FindWndPtr( hwnd );
 310
 311     if (!wndPtr) return 0;
 312     dlgInfo = (DIALOGINFO *)&wndPtr->wExtra;
 313     dlgInfo->msgResult = 0;
 314
 315     if (dlgInfo->dlgProc)       /* Call dialog procedure */
 316         result = (BOOL16)CallWindowProc32A( (WNDPROC32)dlgInfo->dlgProc,
 317                                             hwnd, msg, wParam, lParam );
 318
 319     /* Check if window was destroyed by dialog procedure */
 320
 321     if (!result && IsWindow32(hwnd))
 322     {
 323         /* callback didn't process this message */
 324
 325         switch(msg)
 326         {
 327             case WM_ERASEBKGND:
 328             case WM_SHOWWINDOW:
 329             case WM_ACTIVATE:
 330             case WM_SETFOCUS:
 331             case DM_SETDEFID:
 332             case DM_GETDEFID:
 333             case WM_NEXTDLGCTL:
 334             case WM_GETFONT:
 335             case WM_CLOSE:
 336             case WM_NCDESTROY:
 337             case WM_ENTERMENULOOP:
 338             case WM_LBUTTONDOWN:
 339             case WM_NCLBUTTONDOWN:
 340                  return DEFDLG_Proc( (HWND32)hwnd, msg,
 341                                      (WPARAM32)wParam, lParam, dlgInfo );
 342             case WM_INITDIALOG:
 343             case WM_VKEYTOITEM:
 344             case WM_COMPAREITEM:
 345             case WM_CHARTOITEM:
 346                  break;
 347
 348             default:
 349                  return DefWindowProc32A( hwnd, msg, wParam, lParam );
 350         }
 351     }
 352     return DEFDLG_Epilog(dlgInfo, msg, result);
 353 }
 354
 355
 356 /***********************************************************************
 357  *           DefDlgProc32W   (USER32.120)
 358  */
 359 LRESULT DefDlgProc32W( HWND32 hwnd, UINT32 msg, WPARAM32 wParam, LPARAM lParam)
 360 {
 361     DIALOGINFO * dlgInfo;
 362     BOOL16 result = FALSE;
 363     WND * wndPtr = WIN_FindWndPtr( hwnd );
 364
 365     if (!wndPtr) return 0;
 366     dlgInfo = (DIALOGINFO *)&wndPtr->wExtra;
 367     dlgInfo->msgResult = 0;
 368
 369     if (dlgInfo->dlgProc)       /* Call dialog procedure */
 370         result = (BOOL16)CallWindowProc32W( (WNDPROC32)dlgInfo->dlgProc,
 371                                             hwnd, msg, wParam, lParam );
 372
 373     /* Check if window was destroyed by dialog procedure */
 374
 375     if (!result && IsWindow32(hwnd))
 376     {
 377         /* callback didn't process this message */
 378
 379         switch(msg)
 380         {
 381             case WM_ERASEBKGND:
 382             case WM_SHOWWINDOW:
 383             case WM_ACTIVATE:
 384             case WM_SETFOCUS:
 385             case DM_SETDEFID:
 386             case DM_GETDEFID:
 387             case WM_NEXTDLGCTL:
 388             case WM_GETFONT:
 389             case WM_CLOSE:
 390             case WM_NCDESTROY:
 391             case WM_ENTERMENULOOP:
 392             case WM_LBUTTONDOWN:
 393             case WM_NCLBUTTONDOWN:
 394                  return DEFDLG_Proc( (HWND32)hwnd, msg,
 395                                      (WPARAM32)wParam, lParam, dlgInfo );
 396             case WM_INITDIALOG:
 397             case WM_VKEYTOITEM:
 398             case WM_COMPAREITEM:
 399             case WM_CHARTOITEM:
 400                  break;
 401
 402             default:
 403                  return DefWindowProc32W( hwnd, msg, wParam, lParam );
 404         }
 405     }
 406     return DEFDLG_Epilog(dlgInfo, msg, result);
 407 }