windows/defwnd.c

   1 /*
   2  * Default window procedure
   3  *
   4  * Copyright 1993, 1996 Alexandre Julliard
   5  *           1995 Alex Korobka
   6  */
   7
   8 #include <stdlib.h>
   9 #include <stdio.h>
  10 #include "win.h"
  11 #include "user.h"
  12 #include "heap.h"
  13 #include "nonclient.h"
  14 #include "winpos.h"
  15 #include "string32.h"
  16 #include "syscolor.h"
  17 #include "sysmetrics.h"
  18 #include "stddebug.h"
  19 #include "debug.h"
  20 #include "spy.h"
  21
  22   /* Last COLOR id */
  23 #define COLOR_MAX   COLOR_BTNHIGHLIGHT
  24
  25   /* bits in the dwKeyData */
  26 #define KEYDATA_ALT             0x2000
  27 #define KEYDATA_PREVSTATE       0x4000
  28
  29 static short iF10Key = 0;
  30 static short iMenuSysKey = 0;
  31
  32 /***********************************************************************
  33  *           DEFWND_HandleWindowPosChanged
  34  *
  35  * Handle the WM_WINDOWPOSCHANGED message.
  36  */
  37 static void DEFWND_HandleWindowPosChanged( WND *wndPtr, UINT32 flags )
  38 {
  39     WPARAM16 wp = SIZE_RESTORED;
  40
  41     if (!(flags & SWP_NOCLIENTMOVE))
  42         SendMessage16( wndPtr->hwndSelf, WM_MOVE, 0,
  43                     MAKELONG(wndPtr->rectClient.left, wndPtr->rectClient.top));
  44     if (!(flags & SWP_NOCLIENTSIZE))
  45     {
  46         if (wndPtr->dwStyle & WS_MAXIMIZE) wp = SIZE_MAXIMIZED;
  47         else if (wndPtr->dwStyle & WS_MINIMIZE) wp = SIZE_MINIMIZED;
  48
  49         SendMessage16( wndPtr->hwndSelf, WM_SIZE, wp,
  50                      MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
  51                             wndPtr->rectClient.bottom-wndPtr->rectClient.top));
  52     }
  53 }
  54
  55
  56 /***********************************************************************
  57  *           DEFWND_SetText
  58  *
  59  * Set the window text.
  60  */
  61 void DEFWND_SetText( WND *wndPtr, LPCSTR text )
  62 {
  63     if (!text) text = "";
  64     if (wndPtr->text) HeapFree( SystemHeap, 0, wndPtr->text );
  65     wndPtr->text = HEAP_strdupA( SystemHeap, 0, text );
  66     if (wndPtr->window) XStoreName( display, wndPtr->window, wndPtr->text );
  67 }
  68
  69
  70 /***********************************************************************
  71  *           DEFWND_DefWinProc
  72  *
  73  * Default window procedure for messages that are the same in Win16 and Win32.
  74  */
  75 static LRESULT DEFWND_DefWinProc( WND *wndPtr, UINT32 msg, WPARAM32 wParam,
  76                                   LPARAM lParam )
  77 {
  78     switch(msg)
  79     {
  80     case WM_NCPAINT:
  81         return NC_HandleNCPaint( wndPtr->hwndSelf, (HRGN)wParam );
  82
  83     case WM_NCHITTEST:
  84         return NC_HandleNCHitTest( wndPtr->hwndSelf, MAKEPOINT16(lParam) );
  85
  86     case WM_NCLBUTTONDOWN:
  87         return NC_HandleNCLButtonDown( wndPtr->hwndSelf, wParam, lParam );
  88
  89     case WM_LBUTTONDBLCLK:
  90     case WM_NCLBUTTONDBLCLK:
  91         return NC_HandleNCLButtonDblClk( wndPtr, wParam, lParam );
  92
  93     case WM_NCACTIVATE:
  94         return NC_HandleNCActivate( wndPtr, wParam );
  95
  96     case WM_NCDESTROY:
  97         if (wndPtr->text) HeapFree( SystemHeap, 0, wndPtr->text );
  98         wndPtr->text = NULL;
  99         if (wndPtr->pVScroll) HeapFree( SystemHeap, 0, wndPtr->pVScroll );
 100         if (wndPtr->pHScroll) HeapFree( SystemHeap, 0, wndPtr->pHScroll );
 101         wndPtr->pVScroll = wndPtr->pHScroll = NULL;
 102         return 0;
 103
 104     case WM_PAINTICON:
 105     case WM_PAINT:
 106         {
 107             PAINTSTRUCT16 ps;
 108             HDC           hdc = BeginPaint16( wndPtr->hwndSelf, &ps );
 109             if( hdc )
 110             {
 111               if( (wndPtr->dwStyle & WS_MINIMIZE) && wndPtr->class->hIcon )
 112               {
 113                 int x = (wndPtr->rectWindow.right - wndPtr->rectWindow.left -
 114                         SYSMETRICS_CXICON)/2;
 115                 int y = (wndPtr->rectWindow.bottom - wndPtr->rectWindow.top -
 116                         SYSMETRICS_CYICON)/2;
 117                 dprintf_win(stddeb,"Painting class icon: vis rect=(%i,%i - %i,%i)\n",
 118                 ps.rcPaint.left, ps.rcPaint.top, ps.rcPaint.right, ps.rcPaint.bottom );
 119                 DrawIcon( hdc, x, y, wndPtr->class->hIcon );
 120               }
 121               EndPaint16( wndPtr->hwndSelf, &ps );
 122             }
 123             return 0;
 124         }
 125
 126     case WM_SETREDRAW:
 127         if (!wParam)
 128         {
 129             ValidateRect32( wndPtr->hwndSelf, NULL );
 130             wndPtr->flags |= WIN_NO_REDRAW;
 131         }
 132         else wndPtr->flags &= ~WIN_NO_REDRAW;
 133         return 0;
 134
 135     case WM_CLOSE:
 136         DestroyWindow( wndPtr->hwndSelf );
 137         return 0;
 138
 139     case WM_MOUSEACTIVATE:
 140         if (wndPtr->dwStyle & WS_CHILD)
 141         {
 142             LONG ret = SendMessage16( wndPtr->parent->hwndSelf,
 143                                       WM_MOUSEACTIVATE, wParam, lParam );
 144             if (ret) return ret;
 145         }
 146         return MA_ACTIVATE;
 147
 148     case WM_ACTIVATE:
 149         if (LOWORD(wParam) != WA_INACTIVE) SetFocus32( wndPtr->hwndSelf );
 150         break;
 151
 152     case WM_ERASEBKGND:
 153     case WM_ICONERASEBKGND:
 154         {
 155             if (!wndPtr->class->hbrBackground) return 0;
 156
 157             /* FIXME: should fill icon text with hbrushActiveCaption
 158                       instead of this */
 159
 160             if (wndPtr->dwStyle & WS_MINIMIZE )
 161             {
 162                  if( wndPtr->flags & WIN_NCACTIVATED )
 163                  {
 164                    FillWindow( GetParent16(wndPtr->hwndSelf), wndPtr->hwndSelf,
 165                                (HDC)wParam, sysColorObjects.hbrushActiveCaption );
 166                    return 1;
 167                  }
 168
 169                  /* FIXME: should draw parent' background somehow
 170                              (e.g for textured desktop) ? */
 171             }
 172
 173             if (wndPtr->class->hbrBackground <= (HBRUSH)(COLOR_MAX+1))
 174             {
 175                 HBRUSH hbrush = CreateSolidBrush(
 176                                 GetSysColor(((DWORD)wndPtr->class->hbrBackground)-1));
 177                  FillWindow( GetParent16(wndPtr->hwndSelf), wndPtr->hwndSelf,
 178                              (HDC)wParam, hbrush);
 179                  DeleteObject (hbrush);
 180             }
 181             else FillWindow( GetParent16(wndPtr->hwndSelf), wndPtr->hwndSelf,
 182                                   (HDC)wParam, wndPtr->class->hbrBackground );
 183             return 1;
 184         }
 185
 186     case WM_GETDLGCODE:
 187         return 0;
 188
 189     case WM_CTLCOLORMSGBOX:
 190     case WM_CTLCOLOREDIT:
 191     case WM_CTLCOLORLISTBOX:
 192     case WM_CTLCOLORBTN:
 193     case WM_CTLCOLORDLG:
 194     case WM_CTLCOLORSTATIC:
 195         SetBkColor( (HDC)wParam, GetSysColor(COLOR_WINDOW) );
 196         SetTextColor( (HDC)wParam, GetSysColor(COLOR_WINDOWTEXT) );
 197         return (LRESULT)sysColorObjects.hbrushWindow;
 198
 199     case WM_CTLCOLORSCROLLBAR:
 200         SetBkColor( (HDC)wParam, RGB(255, 255, 255) );
 201         SetTextColor( (HDC)wParam, RGB(0, 0, 0) );
 202         UnrealizeObject( sysColorObjects.hbrushScrollbar );
 203         return (LRESULT)sysColorObjects.hbrushScrollbar;
 204
 205     case WM_CTLCOLOR:
 206         {
 207             if (HIWORD(lParam) == CTLCOLOR_SCROLLBAR)
 208             {
 209                 SetBkColor( (HDC)wParam, RGB(255, 255, 255) );
 210                 SetTextColor( (HDC)wParam, RGB(0, 0, 0) );
 211                 UnrealizeObject( sysColorObjects.hbrushScrollbar );
 212                 return (LRESULT)sysColorObjects.hbrushScrollbar;
 213             }
 214             else
 215             {
 216                 SetBkColor( (HDC)wParam, GetSysColor(COLOR_WINDOW) );
 217                 SetTextColor( (HDC)wParam, GetSysColor(COLOR_WINDOWTEXT) );
 218                 return (LRESULT)sysColorObjects.hbrushWindow;
 219             }
 220         }
 221
 222     case WM_GETTEXTLENGTH:
 223         if (wndPtr->text) return (LRESULT)strlen(wndPtr->text);
 224         return 0;
 225
 226     case WM_SETCURSOR:
 227         if (wndPtr->dwStyle & WS_CHILD)
 228             if (SendMessage16(wndPtr->parent->hwndSelf, WM_SETCURSOR,
 229                             wParam, lParam))
 230                 return TRUE;
 231         return NC_HandleSetCursor( wndPtr->hwndSelf, wParam, lParam );
 232
 233     case WM_SYSCOMMAND:
 234         return NC_HandleSysCommand( wndPtr->hwndSelf, wParam,
 235                                     MAKEPOINT16(lParam) );
 236
 237     case WM_KEYDOWN:
 238         if(wParam == VK_F10) iF10Key = VK_F10;
 239         break;
 240
 241     case WM_SYSKEYDOWN:
 242         if( HIWORD(lParam) & KEYDATA_ALT )
 243           {
 244             /* if( HIWORD(lParam) & ~KEYDATA_PREVSTATE ) */
 245               if( wParam == VK_MENU && !iMenuSysKey )
 246                 iMenuSysKey = 1;
 247               else
 248                 iMenuSysKey = 0;
 249
 250             iF10Key = 0;
 251
 252           }
 253         else if( wParam == VK_F10 )
 254                  iF10Key = 1;
 255              else
 256                  if( wParam == VK_ESCAPE && GetKeyState(VK_SHIFT) < 0 )
 257                      SendMessage16( wndPtr->hwndSelf, WM_SYSCOMMAND,
 258                                     (WPARAM)SC_KEYMENU, (LPARAM)VK_SPACE);
 259         break;
 260
 261     case WM_KEYUP:
 262     case WM_SYSKEYUP:
 263         /* Press and release F10 or ALT */
 264         if (((wParam == VK_MENU) && iMenuSysKey) ||
 265             ((wParam == VK_F10) && iF10Key))
 266               SendMessage16( WIN_GetTopParent(wndPtr->hwndSelf),
 267                              WM_SYSCOMMAND, SC_KEYMENU, 0L );
 268         iMenuSysKey = iF10Key = 0;
 269         break;
 270
 271     case WM_SYSCHAR:
 272         iMenuSysKey = 0;
 273         if (wParam == VK_RETURN && (wndPtr->dwStyle & WS_MINIMIZE))
 274         {
 275             PostMessage( wndPtr->hwndSelf, WM_SYSCOMMAND,
 276                          (WPARAM)SC_RESTORE, 0L );
 277             break;
 278         }
 279         if ((HIWORD(lParam) & KEYDATA_ALT) && wParam)
 280         {
 281             if (wParam == VK_TAB || wParam == VK_ESCAPE) break;
 282             if (wParam == VK_SPACE && (wndPtr->dwStyle & WS_CHILD))
 283                 SendMessage16( wndPtr->parent->hwndSelf, msg, wParam, lParam );
 284             else
 285                 SendMessage16( wndPtr->hwndSelf, WM_SYSCOMMAND,
 286                                (WPARAM)SC_KEYMENU, (LPARAM)(DWORD)wParam );
 287         }
 288         else /* check for Ctrl-Esc */
 289             if (wParam != VK_ESCAPE) MessageBeep(0);
 290         break;
 291
 292     case WM_SHOWWINDOW:
 293         if (!lParam) return 0; /* sent from ShowWindow */
 294         if (!(wndPtr->dwStyle & WS_POPUP) || !wndPtr->owner) return 0;
 295         if ((wndPtr->dwStyle & WS_VISIBLE) && wParam) return 0;
 296         else if (!(wndPtr->dwStyle & WS_VISIBLE) && !wParam) return 0;
 297         ShowWindow( wndPtr->hwndSelf, wParam ? SW_SHOWNOACTIVATE : SW_HIDE );
 298         break;
 299
 300     case WM_CANCELMODE:
 301         /* EndMenu() should be called if in menu state but currently it's
 302            impossible to detect - menu code should be updated*/
 303         if (GetCapture32() == wndPtr->hwndSelf) ReleaseCapture();
 304         break;
 305
 306     case WM_VKEYTOITEM:
 307     case WM_CHARTOITEM:
 308         return -1;
 309
 310     case WM_DROPOBJECT:
 311         return DRAG_FILE;
 312
 313     case WM_QUERYDROPOBJECT:
 314         if (wndPtr->dwExStyle & WS_EX_ACCEPTFILES) return 1;
 315         break;
 316
 317     case WM_QUERYDRAGICON:
 318         {
 319             HICON16 hI = 0;
 320             UINT16 len = 1;
 321             while(len < 64)
 322                 if( (hI = LoadIcon16(wndPtr->hInstance,MAKEINTRESOURCE(len))) )
 323                     return (LRESULT)hI;
 324         }
 325         break;
 326
 327     case WM_QUERYOPEN:
 328     case WM_QUERYENDSESSION:
 329         return 1;
 330     }
 331     return 0;
 332 }
 333
 334
 335
 336 /***********************************************************************
 337  *           DefWindowProc16   (USER.107)
 338  */
 339 LRESULT DefWindowProc16( HWND16 hwnd, UINT16 msg, WPARAM16 wParam,
 340                          LPARAM lParam )
 341 {
 342     WND * wndPtr = WIN_FindWndPtr( hwnd );
 343     LRESULT result = 0;
 344
 345     if (!wndPtr) return 0;
 346     SPY_EnterMessage( SPY_DEFWNDPROC16, hwnd, msg, wParam, lParam );
 347
 348     switch(msg)
 349     {
 350     case WM_NCCREATE:
 351         {
 352             CREATESTRUCT16 *cs = (CREATESTRUCT16 *)PTR_SEG_TO_LIN(lParam);
 353             if (cs->lpszName)
 354                 DEFWND_SetText( wndPtr, (LPSTR)PTR_SEG_TO_LIN(cs->lpszName) );
 355             result = 1;
 356         }
 357         break;
 358
 359     case WM_NCCALCSIZE:
 360         result = NC_HandleNCCalcSize(wndPtr, (RECT16 *)PTR_SEG_TO_LIN(lParam));
 361         break;
 362
 363     case WM_WINDOWPOSCHANGING:
 364         result = WINPOS_HandleWindowPosChanging16( wndPtr,
 365                                        (WINDOWPOS16 *)PTR_SEG_TO_LIN(lParam) );
 366         break;
 367
 368     case WM_WINDOWPOSCHANGED:
 369         {
 370             WINDOWPOS16 * winPos = (WINDOWPOS16 *)PTR_SEG_TO_LIN(lParam);
 371             DEFWND_HandleWindowPosChanged( wndPtr, winPos->flags );
 372         }
 373         break;
 374
 375     case WM_GETTEXT:
 376         if (wParam && wndPtr->text)
 377         {
 378             lstrcpyn32A( (LPSTR)PTR_SEG_TO_LIN(lParam), wndPtr->text, wParam );
 379             result = (LRESULT)strlen( (LPSTR)PTR_SEG_TO_LIN(lParam) ) + 1;
 380         }
 381         break;
 382
 383     case WM_SETTEXT:
 384         DEFWND_SetText( wndPtr, (LPSTR)PTR_SEG_TO_LIN(lParam) );
 385         NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 386         break;
 387
 388     default:
 389         result = DEFWND_DefWinProc( wndPtr, msg, wParam, lParam );
 390         break;
 391     }
 392
 393     SPY_ExitMessage( SPY_RESULT_OK16, hwnd, msg, result );
 394     return result;
 395 }
 396
 397
 398 /***********************************************************************
 399  *           DefWindowProc32A   (USER32.125)
 400  */
 401 LRESULT DefWindowProc32A( HWND32 hwnd, UINT32 msg, WPARAM32 wParam,
 402                           LPARAM lParam )
 403 {
 404     WND * wndPtr = WIN_FindWndPtr( hwnd );
 405     LRESULT result = 0;
 406
 407     if (!wndPtr) return 0;
 408     SPY_EnterMessage( SPY_DEFWNDPROC32, hwnd, msg, wParam, lParam );
 409
 410     switch(msg)
 411     {
 412     case WM_NCCREATE:
 413         {
 414             CREATESTRUCT32A *cs = (CREATESTRUCT32A *)lParam;
 415             if (cs->lpszName) DEFWND_SetText( wndPtr, cs->lpszName );
 416             result = 1;
 417         }
 418         break;
 419
 420     case WM_NCCALCSIZE:
 421         {
 422             RECT16 rect16;
 423             CONV_RECT32TO16( (RECT32 *)lParam, &rect16 );
 424             result = NC_HandleNCCalcSize( wndPtr, &rect16 );
 425             CONV_RECT16TO32( &rect16, (RECT32 *)lParam );
 426         }
 427         break;
 428
 429     case WM_WINDOWPOSCHANGING:
 430         result = WINPOS_HandleWindowPosChanging32( wndPtr,
 431                                                    (WINDOWPOS32 *)lParam );
 432         break;
 433
 434     case WM_WINDOWPOSCHANGED:
 435         {
 436             WINDOWPOS32 * winPos = (WINDOWPOS32 *)lParam;
 437             DEFWND_HandleWindowPosChanged( wndPtr, winPos->flags );
 438         }
 439         break;
 440
 441     case WM_GETTEXT:
 442         if (wParam && wndPtr->text)
 443         {
 444             lstrcpyn32A( (LPSTR)lParam, wndPtr->text, wParam );
 445             result = (LRESULT)strlen( (LPSTR)lParam ) + 1;
 446         }
 447         break;
 448
 449     case WM_SETTEXT:
 450         DEFWND_SetText( wndPtr, (LPSTR)lParam );
 451         NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 452         break;
 453
 454     default:
 455         result = DEFWND_DefWinProc( wndPtr, msg, wParam, lParam );
 456         break;
 457     }
 458
 459     SPY_ExitMessage( SPY_RESULT_OK32, hwnd, msg, result );
 460     return result;
 461 }
 462
 463
 464 /***********************************************************************
 465  *           DefWindowProc32W   (USER32.126)
 466  */
 467 LRESULT DefWindowProc32W( HWND32 hwnd, UINT32 msg, WPARAM32 wParam,
 468                           LPARAM lParam )
 469 {
 470     LRESULT result;
 471
 472     switch(msg)
 473     {
 474     case WM_NCCREATE:
 475         {
 476             CREATESTRUCT32W *cs = (CREATESTRUCT32W *)lParam;
 477             if (cs->lpszName)
 478             {
 479                 WND *wndPtr = WIN_FindWndPtr( hwnd );
 480                 LPSTR str = STRING32_DupUniToAnsi( cs->lpszName );
 481                 DEFWND_SetText( wndPtr, str );
 482                 free( str );
 483             }
 484             result = 1;
 485         }
 486         break;
 487
 488     case WM_GETTEXT:
 489         {
 490             LPSTR str = malloc( wParam );
 491             result = DefWindowProc32A( hwnd, msg, wParam, (LPARAM)str );
 492             STRING32_AnsiToUni( (LPWSTR)lParam, str );
 493             free( str );
 494         }
 495         break;
 496
 497     case WM_SETTEXT:
 498         {
 499             LPSTR str = STRING32_DupUniToAnsi( (LPWSTR)lParam );
 500             result = DefWindowProc32A( hwnd, msg, wParam, (LPARAM)str );
 501             free( str );
 502         }
 503         break;
 504
 505     default:
 506         result = DefWindowProc32A( hwnd, msg, wParam, lParam );
 507         break;
 508     }
 509     return result;
 510 }