windows/property.c

   1 /*
   2  * Window properties
   3  *
   4  * Copyright 1995, 1996 Alexandre Julliard
   5  */
   6
   7 #include <string.h>
   8
   9 #include "windef.h"
  10 #include "wingdi.h"
  11 #include "wine/winuser16.h"
  12 #include "win.h"
  13 #include "heap.h"
  14 #include "debugtools.h"
  15
  16 DEFAULT_DEBUG_CHANNEL(prop);
  17
  18
  19 typedef struct tagPROPERTY
  20 {
  21     struct tagPROPERTY *next;     /* Next property in window list */
  22     HANDLE            handle;   /* User's data */
  23     LPSTR               string;   /* Property string (or atom) */
  24 } PROPERTY;
  25
  26
  27 /***********************************************************************
  28  *           PROP_FindProp
  29  */
  30 static PROPERTY *PROP_FindProp( HWND hwnd, LPCSTR str )
  31 {
  32     ATOM atom;
  33     PROPERTY *prop;
  34     WND *pWnd = WIN_FindWndPtr( hwnd );
  35
  36     if (!pWnd) return NULL;
  37     if (HIWORD(str))
  38     {
  39         atom = GlobalFindAtomA( str );
  40         for (prop = pWnd->pProp; prop; prop = prop->next)
  41         {
  42             if (HIWORD(prop->string))
  43             {
  44                 if (!lstrcmpiA( prop->string, str )) goto END;
  45             }
  46             else if (LOWORD(prop->string) == atom) goto END;
  47         }
  48     }
  49     else  /* atom */
  50     {
  51         atom = LOWORD(str);
  52         for (prop = pWnd->pProp; (prop); prop = prop->next)
  53         {
  54             if (HIWORD(prop->string))
  55             {
  56                 if (GlobalFindAtomA( prop->string ) == atom) goto END;
  57             }
  58             else if (LOWORD(prop->string) == atom) goto END;
  59         }
  60     }
  61     prop = NULL;
  62 END:
  63     WIN_ReleaseWndPtr(pWnd);
  64     return prop;
  65 }
  66
  67
  68 /***********************************************************************
  69  *              GetProp (USER.25)
  70  */
  71 HANDLE16 WINAPI GetProp16( HWND16 hwnd, LPCSTR str )
  72 {
  73     return (HANDLE16)GetPropA( hwnd, str );
  74 }
  75
  76
  77 /***********************************************************************
  78  *              GetPropA (USER32.@)
  79  */
  80 HANDLE WINAPI GetPropA( HWND hwnd, LPCSTR str )
  81 {
  82     PROPERTY *prop = PROP_FindProp( hwnd, str );
  83
  84     if (HIWORD(str))
  85         TRACE("(%08x,'%s'): returning %08x\n",
  86                       hwnd, str, prop ? prop->handle : 0 );
  87     else
  88         TRACE("(%08x,#%04x): returning %08x\n",
  89                       hwnd, LOWORD(str), prop ? prop->handle : 0 );
  90
  91     return prop ? prop->handle : 0;
  92 }
  93
  94
  95 /***********************************************************************
  96  *              GetPropW (USER32.@)
  97  */
  98 HANDLE WINAPI GetPropW( HWND hwnd, LPCWSTR str )
  99 {
 100     LPSTR strA;
 101     HANDLE ret;
 102
 103     if (!HIWORD(str)) return GetPropA( hwnd, (LPCSTR)(UINT)LOWORD(str) );
 104     strA = HEAP_strdupWtoA( GetProcessHeap(), 0, str );
 105     ret = GetPropA( hwnd, strA );
 106     HeapFree( GetProcessHeap(), 0, strA );
 107     return ret;
 108 }
 109
 110
 111 /***********************************************************************
 112  *              SetProp (USER.26)
 113  */
 114 BOOL16 WINAPI SetProp16( HWND16 hwnd, LPCSTR str, HANDLE16 handle )
 115 {
 116     return (BOOL16)SetPropA( hwnd, str, handle );
 117 }
 118
 119
 120 /***********************************************************************
 121  *              SetPropA (USER32.@)
 122  */
 123 BOOL WINAPI SetPropA( HWND hwnd, LPCSTR str, HANDLE handle )
 124 {
 125     PROPERTY *prop;
 126
 127     if (HIWORD(str))
 128         TRACE("%04x '%s' %08x\n", hwnd, str, handle );
 129     else
 130         TRACE("%04x #%04x %08x\n",
 131                       hwnd, LOWORD(str), handle );
 132
 133     if (!(prop = PROP_FindProp( hwnd, str )))
 134     {
 135         /* We need to create it */
 136         WND *pWnd = WIN_FindWndPtr( hwnd );
 137         if (!pWnd) return FALSE;
 138         if (!(prop = HeapAlloc( SystemHeap, 0, sizeof(*prop) )))
 139         {
 140             WIN_ReleaseWndPtr(pWnd);
 141             return FALSE;
 142         }
 143         if (!(prop->string = SEGPTR_STRDUP(str)))
 144         {
 145             HeapFree( SystemHeap, 0, prop );
 146             WIN_ReleaseWndPtr(pWnd);
 147             return FALSE;
 148
 149         }
 150         prop->next  = pWnd->pProp;
 151         pWnd->pProp = prop;
 152         WIN_ReleaseWndPtr(pWnd);
 153     }
 154     prop->handle = handle;
 155     return TRUE;
 156 }
 157
 158
 159 /***********************************************************************
 160  *              SetPropW (USER32.@)
 161  */
 162 BOOL WINAPI SetPropW( HWND hwnd, LPCWSTR str, HANDLE handle )
 163 {
 164     BOOL ret;
 165     LPSTR strA;
 166
 167     if (!HIWORD(str))
 168         return SetPropA( hwnd, (LPCSTR)(UINT)LOWORD(str), handle );
 169     strA = HEAP_strdupWtoA( GetProcessHeap(), 0, str );
 170     ret = SetPropA( hwnd, strA, handle );
 171     HeapFree( GetProcessHeap(), 0, strA );
 172     return ret;
 173 }
 174
 175
 176 /***********************************************************************
 177  *              RemoveProp (USER.24)
 178  */
 179 HANDLE16 WINAPI RemoveProp16( HWND16 hwnd, LPCSTR str )
 180 {
 181     return (HANDLE16)RemovePropA( hwnd, str );
 182 }
 183
 184
 185 /***********************************************************************
 186  *              RemovePropA (USER32.@)
 187  */
 188 HANDLE WINAPI RemovePropA( HWND hwnd, LPCSTR str )
 189 {
 190     ATOM atom;
 191     HANDLE handle;
 192     PROPERTY **pprop, *prop;
 193     WND *pWnd = WIN_FindWndPtr( hwnd );
 194
 195     if (HIWORD(str))
 196       TRACE("%04x '%s'\n", hwnd, str );
 197     else
 198       TRACE("%04x #%04x\n", hwnd, LOWORD(str));
 199
 200
 201     if (!pWnd) return (HANDLE)0;
 202     if (HIWORD(str))
 203     {
 204         atom = GlobalFindAtomA( str );
 205         for (pprop=(PROPERTY**)&pWnd->pProp; (*pprop); pprop = &(*pprop)->next)
 206         {
 207             if (HIWORD((*pprop)->string))
 208             {
 209                 if (!lstrcmpiA( (*pprop)->string, str )) break;
 210             }
 211             else if (LOWORD((*pprop)->string) == atom) break;
 212         }
 213     }
 214     else  /* atom */
 215     {
 216         atom = LOWORD(str);
 217         for (pprop=(PROPERTY**)&pWnd->pProp; (*pprop); pprop = &(*pprop)->next)
 218         {
 219             if (HIWORD((*pprop)->string))
 220             {
 221                 if (GlobalFindAtomA( (*pprop)->string ) == atom) break;
 222             }
 223             else if (LOWORD((*pprop)->string) == atom) break;
 224         }
 225     }
 226     WIN_ReleaseWndPtr(pWnd);
 227     if (!*pprop) return 0;
 228     prop   = *pprop;
 229     handle = prop->handle;
 230     *pprop = prop->next;
 231     SEGPTR_FREE(prop->string);
 232     HeapFree( SystemHeap, 0, prop );
 233     return handle;
 234 }
 235
 236
 237 /***********************************************************************
 238  *              RemovePropW (USER32.@)
 239  */
 240 HANDLE WINAPI RemovePropW( HWND hwnd, LPCWSTR str )
 241 {
 242     LPSTR strA;
 243     HANDLE ret;
 244
 245     if (!HIWORD(str))
 246         return RemovePropA( hwnd, (LPCSTR)(UINT)LOWORD(str) );
 247     strA = HEAP_strdupWtoA( GetProcessHeap(), 0, str );
 248     ret = RemovePropA( hwnd, strA );
 249     HeapFree( GetProcessHeap(), 0, strA );
 250     return ret;
 251 }
 252
 253
 254 /***********************************************************************
 255  *           PROPERTY_RemoveWindowProps
 256  *
 257  * Remove all properties of a window.
 258  */
 259 void PROPERTY_RemoveWindowProps( WND *pWnd )
 260 {
 261     PROPERTY *prop, *next;
 262
 263     for (prop = pWnd->pProp; (prop); prop = next)
 264     {
 265         next = prop->next;
 266         SEGPTR_FREE( prop->string );
 267         HeapFree( SystemHeap, 0, prop );
 268     }
 269     pWnd->pProp = NULL;
 270 }
 271
 272
 273 /***********************************************************************
 274  *              EnumProps (USER.27)
 275  */
 276 INT16 WINAPI EnumProps16( HWND16 hwnd, PROPENUMPROC16 func )
 277 {
 278     PROPERTY *prop, *next;
 279     WND *pWnd;
 280     INT16 ret = -1;
 281
 282     TRACE("%04x %08x\n", hwnd, (UINT)func );
 283     if (!(pWnd = WIN_FindWndPtr( hwnd ))) return -1;
 284     for (prop = pWnd->pProp; (prop); prop = next)
 285     {
 286         /* Already get the next in case the callback */
 287         /* function removes the current property.    */
 288         next = prop->next;
 289
 290         TRACE("  Callback: handle=%08x str='%s'\n",
 291                       prop->handle, prop->string );
 292         ret = func( hwnd, SEGPTR_GET(prop->string), prop->handle );
 293         if (!ret) break;
 294     }
 295     WIN_ReleaseWndPtr(pWnd);
 296     return ret;
 297 }
 298
 299
 300 /***********************************************************************
 301  *              EnumPropsA (USER32.@)
 302  */
 303 INT WINAPI EnumPropsA( HWND hwnd, PROPENUMPROCA func )
 304 {
 305     return EnumPropsExA( hwnd, (PROPENUMPROCEXA)func, 0 );
 306 }
 307
 308
 309 /***********************************************************************
 310  *              EnumPropsW (USER32.@)
 311  */
 312 INT WINAPI EnumPropsW( HWND hwnd, PROPENUMPROCW func )
 313 {
 314     return EnumPropsExW( hwnd, (PROPENUMPROCEXW)func, 0 );
 315 }
 316
 317
 318 /***********************************************************************
 319  *              EnumPropsExA (USER32.@)
 320  */
 321 INT WINAPI EnumPropsExA(HWND hwnd, PROPENUMPROCEXA func, LPARAM lParam)
 322 {
 323     PROPERTY *prop, *next;
 324     WND *pWnd;
 325     INT ret = -1;
 326
 327     TRACE("%04x %08x %08lx\n",
 328                   hwnd, (UINT)func, lParam );
 329     if (!(pWnd = WIN_FindWndPtr( hwnd ))) return -1;
 330     for (prop = pWnd->pProp; (prop); prop = next)
 331     {
 332         /* Already get the next in case the callback */
 333         /* function removes the current property.    */
 334         next = prop->next;
 335
 336         TRACE("  Callback: handle=%08x str='%s'\n",
 337                       prop->handle, prop->string );
 338         ret = func( hwnd, prop->string, prop->handle, lParam );
 339         if (!ret) break;
 340     }
 341     WIN_ReleaseWndPtr(pWnd);
 342     return ret;
 343 }
 344
 345
 346 /***********************************************************************
 347  *              EnumPropsExW (USER32.@)
 348  */
 349 INT WINAPI EnumPropsExW(HWND hwnd, PROPENUMPROCEXW func, LPARAM lParam)
 350 {
 351     PROPERTY *prop, *next;
 352     WND *pWnd;
 353     INT ret = -1;
 354
 355     TRACE("%04x %08x %08lx\n",
 356                   hwnd, (UINT)func, lParam );
 357     if (!(pWnd = WIN_FindWndPtr( hwnd ))) return -1;
 358     for (prop = pWnd->pProp; (prop); prop = next)
 359     {
 360         /* Already get the next in case the callback */
 361         /* function removes the current property.    */
 362         next = prop->next;
 363
 364         TRACE("  Callback: handle=%08x str='%s'\n",
 365                       prop->handle, prop->string );
 366         if (HIWORD(prop->string))
 367         {
 368             LPWSTR str = HEAP_strdupAtoW( GetProcessHeap(), 0, prop->string );
 369             ret = func( hwnd, str, prop->handle, lParam );
 370             HeapFree( GetProcessHeap(), 0, str );
 371         }
 372         else
 373             ret = func( hwnd, (LPCWSTR)(UINT)LOWORD( prop->string ),
 374                         prop->handle, lParam );
 375         if (!ret) break;
 376     }
 377     WIN_ReleaseWndPtr(pWnd);
 378     return ret;
 379 }