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 "syscolor.h"
  16 #include "sysmetrics.h"
  17 #include "stddebug.h"
  18 #include "debug.h"
  19 #include "spy.h"
  20
  21   /* Last COLOR id */
  22 #define COLOR_MAX   COLOR_BTNHIGHLIGHT
  23
  24   /* bits in the dwKeyData */
  25 #define KEYDATA_ALT             0x2000
  26 #define KEYDATA_PREVSTATE       0x4000
  27
  28 static short iF10Key = 0;
  29 static short iMenuSysKey = 0;
  30
  31 /***********************************************************************
  32  *           DEFWND_HandleWindowPosChanged
  33  *
  34  * Handle the WM_WINDOWPOSCHANGED message.
  35  */
  36 static void DEFWND_HandleWindowPosChanged( WND *wndPtr, UINT32 flags )
  37 {
  38     WPARAM16 wp = SIZE_RESTORED;
  39
  40     if (!(flags & SWP_NOCLIENTMOVE))
  41         SendMessage16( wndPtr->hwndSelf, WM_MOVE, 0,
  42                     MAKELONG(wndPtr->rectClient.left, wndPtr->rectClient.top));
  43     if (!(flags & SWP_NOCLIENTSIZE))
  44     {
  45         if (wndPtr->dwStyle & WS_MAXIMIZE) wp = SIZE_MAXIMIZED;
  46         else if (wndPtr->dwStyle & WS_MINIMIZE) wp = SIZE_MINIMIZED;
  47
  48         SendMessage16( wndPtr->hwndSelf, WM_SIZE, wp,
  49                      MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
  50                             wndPtr->rectClient.bottom-wndPtr->rectClient.top));
  51     }
  52 }
  53
  54
  55 /***********************************************************************
  56  *           DEFWND_SetText
  57  *
  58  * Set the window text.
  59  */
  60 void DEFWND_SetText( WND *wndPtr, LPCSTR text )
  61 {
  62     if (!text) text = "";
  63     if (wndPtr->text) HeapFree( SystemHeap, 0, wndPtr->text );
  64     wndPtr->text = HEAP_strdupA( SystemHeap, 0, text );
  65     if (wndPtr->window)
  66     {
  67         XStoreName( display, wndPtr->window, wndPtr->text );
  68         XSetIconName( display, wndPtr->window, wndPtr->text );
  69     }
  70 }
  71
  72
  73 /***********************************************************************
  74  *           DEFWND_DefWinProc
  75  *
  76  * Default window procedure for messages that are the same in Win16 and Win32.
  77  */
  78 static LRESULT DEFWND_DefWinProc( WND *wndPtr, UINT32 msg, WPARAM32 wParam,
  79                                   LPARAM lParam )
  80 {
  81     switch(msg)
  82     {
  83     case WM_NCPAINT:
  84         return NC_HandleNCPaint( wndPtr->hwndSelf, (HRGN32)wParam );
  85
  86     case WM_NCHITTEST:
  87         return NC_HandleNCHitTest( wndPtr->hwndSelf, MAKEPOINT16(lParam) );
  88
  89     case WM_NCLBUTTONDOWN:
  90         return NC_HandleNCLButtonDown( wndPtr->hwndSelf, wParam, lParam );
  91
  92     case WM_LBUTTONDBLCLK:
  93     case WM_NCLBUTTONDBLCLK:
  94         return NC_HandleNCLButtonDblClk( wndPtr, wParam, lParam );
  95
  96     case WM_NCACTIVATE:
  97         return NC_HandleNCActivate( wndPtr, wParam );
  98
  99     case WM_NCDESTROY:
 100         if (wndPtr->text) HeapFree( SystemHeap, 0, wndPtr->text );
 101         wndPtr->text = NULL;
 102         if (wndPtr->pVScroll) HeapFree( SystemHeap, 0, wndPtr->pVScroll );
 103         if (wndPtr->pHScroll) HeapFree( SystemHeap, 0, wndPtr->pHScroll );
 104         wndPtr->pVScroll = wndPtr->pHScroll = NULL;
 105         return 0;
 106
 107     case WM_PAINTICON:
 108     case WM_PAINT:
 109         {
 110             PAINTSTRUCT16 ps;
 111             HDC16 hdc = BeginPaint16( wndPtr->hwndSelf, &ps );
 112             if( hdc )
 113             {
 114               if( (wndPtr->dwStyle & WS_MINIMIZE) && wndPtr->class->hIcon )
 115               {
 116                 int x = (wndPtr->rectWindow.right - wndPtr->rectWindow.left -
 117                         SYSMETRICS_CXICON)/2;
 118                 int y = (wndPtr->rectWindow.bottom - wndPtr->rectWindow.top -
 119                         SYSMETRICS_CYICON)/2;
 120                 dprintf_win(stddeb,"Painting class icon: vis rect=(%i,%i - %i,%i)\n",
 121                 ps.rcPaint.left, ps.rcPaint.top, ps.rcPaint.right, ps.rcPaint.bottom );
 122                 DrawIcon( hdc, x, y, wndPtr->class->hIcon );
 123               }
 124               EndPaint16( wndPtr->hwndSelf, &ps );
 125             }
 126             return 0;
 127         }
 128
 129     case WM_SETREDRAW:
 130         if (!wParam)
 131         {
 132             ValidateRect32( wndPtr->hwndSelf, NULL );
 133             wndPtr->flags |= WIN_NO_REDRAW;
 134         }
 135         else wndPtr->flags &= ~WIN_NO_REDRAW;
 136         return 0;
 137
 138     case WM_CLOSE:
 139         DestroyWindow( wndPtr->hwndSelf );
 140         return 0;
 141
 142     case WM_MOUSEACTIVATE:
 143         if (wndPtr->dwStyle & WS_CHILD)
 144         {
 145             LONG ret = SendMessage16( wndPtr->parent->hwndSelf,
 146                                       WM_MOUSEACTIVATE, wParam, lParam );
 147             if (ret) return ret;
 148         }
 149         return MA_ACTIVATE;
 150
 151     case WM_ACTIVATE:
 152         if (LOWORD(wParam) != WA_INACTIVE) SetFocus32( wndPtr->hwndSelf );
 153         break;
 154
 155     case WM_ERASEBKGND:
 156     case WM_ICONERASEBKGND:
 157         {
 158             if (!wndPtr->class->hbrBackground) return 0;
 159
 160             /* FIXME: should fill icon text with hbrushActiveCaption
 161                       instead of this */
 162
 163             if (wndPtr->dwStyle & WS_MINIMIZE )
 164             {
 165                  if( wndPtr->flags & WIN_NCACTIVATED )
 166                  {
 167                    FillWindow( GetParent16(wndPtr->hwndSelf), wndPtr->hwndSelf,
 168                                (HDC16)wParam, sysColorObjects.hbrushActiveCaption );
 169                    return 1;
 170                  }
 171
 172                  /* FIXME: should draw parent' background somehow
 173                              (e.g for textured desktop) ? */
 174             }
 175
 176             if (wndPtr->class->hbrBackground <= (HBRUSH16)(COLOR_MAX+1))
 177             {
 178                 HBRUSH32 hbrush = CreateSolidBrush32(
 179                          GetSysColor(((DWORD)wndPtr->class->hbrBackground)-1));
 180                  FillWindow( GetParent16(wndPtr->hwndSelf), wndPtr->hwndSelf,
 181                              (HDC16)wParam, hbrush);
 182                  DeleteObject32( hbrush );
 183             }
 184             else FillWindow( GetParent16(wndPtr->hwndSelf), wndPtr->hwndSelf,
 185                              (HDC16)wParam, wndPtr->class->hbrBackground );
 186             return 1;
 187         }
 188
 189     case WM_GETDLGCODE:
 190         return 0;
 191
 192     case WM_CTLCOLORMSGBOX:
 193     case WM_CTLCOLOREDIT:
 194     case WM_CTLCOLORLISTBOX:
 195     case WM_CTLCOLORBTN:
 196     case WM_CTLCOLORDLG:
 197     case WM_CTLCOLORSTATIC:
 198         SetBkColor( (HDC32)wParam, GetSysColor(COLOR_WINDOW) );
 199         SetTextColor( (HDC32)wParam, GetSysColor(COLOR_WINDOWTEXT) );
 200         return (LRESULT)sysColorObjects.hbrushWindow;
 201
 202     case WM_CTLCOLORSCROLLBAR:
 203         SetBkColor( (HDC32)wParam, RGB(255, 255, 255) );
 204         SetTextColor( (HDC32)wParam, RGB(0, 0, 0) );
 205         UnrealizeObject32( sysColorObjects.hbrushScrollbar );
 206         return (LRESULT)sysColorObjects.hbrushScrollbar;
 207
 208     case WM_CTLCOLOR:
 209         {
 210             if (HIWORD(lParam) == CTLCOLOR_SCROLLBAR)
 211             {
 212                 SetBkColor( (HDC32)wParam, RGB(255, 255, 255) );
 213                 SetTextColor( (HDC32)wParam, RGB(0, 0, 0) );
 214                 UnrealizeObject32( sysColorObjects.hbrushScrollbar );
 215                 return (LRESULT)sysColorObjects.hbrushScrollbar;
 216             }
 217             else
 218             {
 219                 SetBkColor( (HDC32)wParam, GetSysColor(COLOR_WINDOW) );
 220                 SetTextColor( (HDC32)wParam, GetSysColor(COLOR_WINDOWTEXT) );
 221                 return (LRESULT)sysColorObjects.hbrushWindow;
 222             }
 223         }
 224
 225     case WM_GETTEXTLENGTH:
 226         if (wndPtr->text) return (LRESULT)strlen(wndPtr->text);
 227         return 0;
 228
 229     case WM_SETCURSOR:
 230         if (wndPtr->dwStyle & WS_CHILD)
 231             if (SendMessage16(wndPtr->parent->hwndSelf, WM_SETCURSOR,
 232                             wParam, lParam))
 233                 return TRUE;
 234         return NC_HandleSetCursor( wndPtr->hwndSelf, wParam, lParam );
 235
 236     case WM_SYSCOMMAND:
 237         return NC_HandleSysCommand( wndPtr->hwndSelf, wParam,
 238                                     MAKEPOINT16(lParam) );
 239
 240     case WM_KEYDOWN:
 241         if(wParam == VK_F10) iF10Key = VK_F10;
 242         break;
 243
 244     case WM_SYSKEYDOWN:
 245         if( HIWORD(lParam) & KEYDATA_ALT )
 246           {
 247             /* if( HIWORD(lParam) & ~KEYDATA_PREVSTATE ) */
 248               if( wParam == VK_MENU && !iMenuSysKey )
 249                 iMenuSysKey = 1;
 250               else
 251                 iMenuSysKey = 0;
 252
 253             iF10Key = 0;
 254
 255           }
 256         else if( wParam == VK_F10 )
 257                  iF10Key = 1;
 258              else
 259                  if( wParam == VK_ESCAPE && GetKeyState(VK_SHIFT) < 0 )
 260                      SendMessage16( wndPtr->hwndSelf, WM_SYSCOMMAND,
 261                                     (WPARAM16)SC_KEYMENU, (LPARAM)VK_SPACE);
 262         break;
 263
 264     case WM_KEYUP:
 265     case WM_SYSKEYUP:
 266         /* Press and release F10 or ALT */
 267         if (((wParam == VK_MENU) && iMenuSysKey) ||
 268             ((wParam == VK_F10) && iF10Key))
 269               SendMessage16( WIN_GetTopParent(wndPtr->hwndSelf),
 270                              WM_SYSCOMMAND, SC_KEYMENU, 0L );
 271         iMenuSysKey = iF10Key = 0;
 272         break;
 273
 274     case WM_SYSCHAR:
 275         iMenuSysKey = 0;
 276         if (wParam == VK_RETURN && (wndPtr->dwStyle & WS_MINIMIZE))
 277         {
 278             PostMessage( wndPtr->hwndSelf, WM_SYSCOMMAND,
 279                          (WPARAM16)SC_RESTORE, 0L );
 280             break;
 281         }
 282         if ((HIWORD(lParam) & KEYDATA_ALT) && wParam)
 283         {
 284             if (wParam == VK_TAB || wParam == VK_ESCAPE) break;
 285             if (wParam == VK_SPACE && (wndPtr->dwStyle & WS_CHILD))
 286                 SendMessage16( wndPtr->parent->hwndSelf, msg, wParam, lParam );
 287             else
 288                 SendMessage16( wndPtr->hwndSelf, WM_SYSCOMMAND,
 289                                (WPARAM16)SC_KEYMENU, (LPARAM)(DWORD)wParam );
 290         }
 291         else /* check for Ctrl-Esc */
 292             if (wParam != VK_ESCAPE) MessageBeep(0);
 293         break;
 294
 295     case WM_SHOWWINDOW:
 296         if (!lParam) return 0; /* sent from ShowWindow */
 297         if (!(wndPtr->dwStyle & WS_POPUP) || !wndPtr->owner) return 0;
 298         if ((wndPtr->dwStyle & WS_VISIBLE) && wParam) return 0;
 299         else if (!(wndPtr->dwStyle & WS_VISIBLE) && !wParam) return 0;
 300         ShowWindow( wndPtr->hwndSelf, wParam ? SW_SHOWNOACTIVATE : SW_HIDE );
 301         break;
 302
 303     case WM_CANCELMODE:
 304         /* EndMenu() should be called if in menu state but currently it's
 305            impossible to detect - menu code should be updated*/
 306         if (GetCapture32() == wndPtr->hwndSelf) ReleaseCapture();
 307         break;
 308
 309     case WM_VKEYTOITEM:
 310     case WM_CHARTOITEM:
 311         return -1;
 312
 313     case WM_DROPOBJECT:
 314         return DRAG_FILE;
 315
 316     case WM_QUERYDROPOBJECT:
 317         if (wndPtr->dwExStyle & WS_EX_ACCEPTFILES) return 1;
 318         break;
 319
 320     case WM_QUERYDRAGICON:
 321         {
 322             HICON16 hI = 0;
 323             UINT16 len = 1;
 324             while(len < 64)
 325                 if( (hI = LoadIcon16(wndPtr->hInstance,MAKEINTRESOURCE(len))) )
 326                     return (LRESULT)hI;
 327         }
 328         break;
 329
 330     case WM_QUERYOPEN:
 331     case WM_QUERYENDSESSION:
 332         return 1;
 333     }
 334     return 0;
 335 }
 336
 337
 338
 339 /***********************************************************************
 340  *           DefWindowProc16   (USER.107)
 341  */
 342 LRESULT DefWindowProc16( HWND16 hwnd, UINT16 msg, WPARAM16 wParam,
 343                          LPARAM lParam )
 344 {
 345     WND * wndPtr = WIN_FindWndPtr( hwnd );
 346     LRESULT result = 0;
 347
 348     if (!wndPtr) return 0;
 349     SPY_EnterMessage( SPY_DEFWNDPROC16, hwnd, msg, wParam, lParam );
 350
 351     switch(msg)
 352     {
 353     case WM_NCCREATE:
 354         {
 355             CREATESTRUCT16 *cs = (CREATESTRUCT16 *)PTR_SEG_TO_LIN(lParam);
 356             if (cs->lpszName)
 357                 DEFWND_SetText( wndPtr, (LPSTR)PTR_SEG_TO_LIN(cs->lpszName) );
 358             result = 1;
 359         }
 360         break;
 361
 362     case WM_NCCALCSIZE:
 363         result = NC_HandleNCCalcSize(wndPtr, (RECT16 *)PTR_SEG_TO_LIN(lParam));
 364         break;
 365
 366     case WM_WINDOWPOSCHANGING:
 367         result = WINPOS_HandleWindowPosChanging16( wndPtr,
 368                                        (WINDOWPOS16 *)PTR_SEG_TO_LIN(lParam) );
 369         break;
 370
 371     case WM_WINDOWPOSCHANGED:
 372         {
 373             WINDOWPOS16 * winPos = (WINDOWPOS16 *)PTR_SEG_TO_LIN(lParam);
 374             DEFWND_HandleWindowPosChanged( wndPtr, winPos->flags );
 375         }
 376         break;
 377
 378     case WM_GETTEXT:
 379         if (wParam && wndPtr->text)
 380         {
 381             lstrcpyn32A( (LPSTR)PTR_SEG_TO_LIN(lParam), wndPtr->text, wParam );
 382             result = (LRESULT)strlen( (LPSTR)PTR_SEG_TO_LIN(lParam) );
 383         }
 384         break;
 385
 386     case WM_SETTEXT:
 387         DEFWND_SetText( wndPtr, (LPSTR)PTR_SEG_TO_LIN(lParam) );
 388         NC_HandleNCPaint( hwnd , (HRGN32)1 );  /* Repaint caption */
 389         break;
 390
 391     default:
 392         result = DEFWND_DefWinProc( wndPtr, msg, wParam, lParam );
 393         break;
 394     }
 395
 396     SPY_ExitMessage( SPY_RESULT_OK16, hwnd, msg, result );
 397     return result;
 398 }
 399
 400
 401 /***********************************************************************
 402  *           DefWindowProc32A   (USER32.125)
 403  */
 404 LRESULT DefWindowProc32A( HWND32 hwnd, UINT32 msg, WPARAM32 wParam,
 405                           LPARAM lParam )
 406 {
 407     WND * wndPtr = WIN_FindWndPtr( hwnd );
 408     LRESULT result = 0;
 409
 410     if (!wndPtr) return 0;
 411     SPY_EnterMessage( SPY_DEFWNDPROC32, hwnd, msg, wParam, lParam );
 412
 413     switch(msg)
 414     {
 415     case WM_NCCREATE:
 416         {
 417             CREATESTRUCT32A *cs = (CREATESTRUCT32A *)lParam;
 418             if (cs->lpszName) DEFWND_SetText( wndPtr, cs->lpszName );
 419             result = 1;
 420         }
 421         break;
 422
 423     case WM_NCCALCSIZE:
 424         {
 425             RECT16 rect16;
 426             CONV_RECT32TO16( (RECT32 *)lParam, &rect16 );
 427             result = NC_HandleNCCalcSize( wndPtr, &rect16 );
 428             CONV_RECT16TO32( &rect16, (RECT32 *)lParam );
 429         }
 430         break;
 431
 432     case WM_WINDOWPOSCHANGING:
 433         result = WINPOS_HandleWindowPosChanging32( wndPtr,
 434                                                    (WINDOWPOS32 *)lParam );
 435         break;
 436
 437     case WM_WINDOWPOSCHANGED:
 438         {
 439             WINDOWPOS32 * winPos = (WINDOWPOS32 *)lParam;
 440             DEFWND_HandleWindowPosChanged( wndPtr, winPos->flags );
 441         }
 442         break;
 443
 444     case WM_GETTEXT:
 445         if (wParam && wndPtr->text)
 446         {
 447             lstrcpyn32A( (LPSTR)lParam, wndPtr->text, wParam );
 448             result = (LRESULT)strlen( (LPSTR)lParam );
 449         }
 450         break;
 451
 452     case WM_SETTEXT:
 453         DEFWND_SetText( wndPtr, (LPSTR)lParam );
 454         NC_HandleNCPaint( hwnd , (HRGN32)1 );  /* Repaint caption */
 455         break;
 456
 457     default:
 458         result = DEFWND_DefWinProc( wndPtr, msg, wParam, lParam );
 459         break;
 460     }
 461
 462     SPY_ExitMessage( SPY_RESULT_OK32, hwnd, msg, result );
 463     return result;
 464 }
 465
 466
 467 /***********************************************************************
 468  *           DefWindowProc32W   (USER32.126)
 469  */
 470 LRESULT DefWindowProc32W( HWND32 hwnd, UINT32 msg, WPARAM32 wParam,
 471                           LPARAM lParam )
 472 {
 473     LRESULT result;
 474
 475     switch(msg)
 476     {
 477     case WM_NCCREATE:
 478         {
 479             CREATESTRUCT32W *cs = (CREATESTRUCT32W *)lParam;
 480             if (cs->lpszName)
 481             {
 482                 WND *wndPtr = WIN_FindWndPtr( hwnd );
 483                 LPSTR str = HEAP_strdupWtoA(GetProcessHeap(), 0, cs->lpszName);
 484                 DEFWND_SetText( wndPtr, str );
 485                 HeapFree( GetProcessHeap(), 0, str );
 486             }
 487             result = 1;
 488         }
 489         break;
 490
 491     case WM_GETTEXT:
 492         {
 493             LPSTR str = HeapAlloc( GetProcessHeap(), 0, wParam );
 494             result = DefWindowProc32A( hwnd, msg, wParam, (LPARAM)str );
 495             lstrcpynAtoW( (LPWSTR)lParam, str, wParam );
 496             HeapFree( GetProcessHeap(), 0, str );
 497         }
 498         break;
 499
 500     case WM_SETTEXT:
 501         {
 502             LPSTR str = HEAP_strdupWtoA( GetProcessHeap(), 0, (LPWSTR)lParam );
 503             result = DefWindowProc32A( hwnd, msg, wParam, (LPARAM)str );
 504             HeapFree( GetProcessHeap(), 0, str );
 505         }
 506         break;
 507
 508     default:
 509         result = DefWindowProc32A( hwnd, msg, wParam, lParam );
 510         break;
 511     }
 512     return result;
 513 }