dlls/jscript/vbarray.c

   1 /*
   2  * Copyright 2010 Piotr Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "jscript.h"
  20
  21 #include "wine/debug.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  24
  25 typedef struct {
  26     jsdisp_t dispex;
  27
  28     SAFEARRAY *safearray;
  29 } VBArrayInstance;
  30
  31 static const WCHAR dimensionsW[] = {'d','i','m','e','n','s','i','o','n','s',0};
  32 static const WCHAR getItemW[] = {'g','e','t','I','t','e','m',0};
  33 static const WCHAR lboundW[] = {'l','b','o','u','n','d',0};
  34 static const WCHAR toArrayW[] = {'t','o','A','r','r','a','y',0};
  35 static const WCHAR uboundW[] = {'u','b','o','u','n','d',0};
  36
  37 static inline VBArrayInstance *vbarray_from_vdisp(vdisp_t *vdisp)
  38 {
  39     return (VBArrayInstance*)vdisp->u.jsdisp;
  40 }
  41
  42 static inline VBArrayInstance *vbarray_this(vdisp_t *jsthis)
  43 {
  44     return is_vclass(jsthis, JSCLASS_VBARRAY) ? vbarray_from_vdisp(jsthis) : NULL;
  45 }
  46
  47 static HRESULT VBArray_dimensions(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
  48         jsval_t *r)
  49 {
  50     VBArrayInstance *vbarray;
  51
  52     TRACE("\n");
  53
  54     vbarray = vbarray_this(vthis);
  55     if(!vbarray)
  56         return throw_type_error(ctx, JS_E_VBARRAY_EXPECTED, NULL);
  57
  58     if(r)
  59         *r = jsval_number(SafeArrayGetDim(vbarray->safearray));
  60     return S_OK;
  61 }
  62
  63 static HRESULT VBArray_getItem(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
  64         jsval_t *r)
  65 {
  66     VBArrayInstance *vbarray;
  67     int i, *indexes;
  68     VARIANT out;
  69     HRESULT hres;
  70
  71     TRACE("\n");
  72
  73     vbarray = vbarray_this(vthis);
  74     if(!vbarray)
  75         return throw_type_error(ctx, JS_E_VBARRAY_EXPECTED, NULL);
  76
  77     if(argc < SafeArrayGetDim(vbarray->safearray))
  78         return throw_range_error(ctx, JS_E_SUBSCRIPT_OUT_OF_RANGE, NULL);
  79
  80     indexes = heap_alloc(sizeof(int)*argc);
  81     if(!indexes)
  82         return E_OUTOFMEMORY;
  83
  84     for(i=0; i<argc; i++) {
  85         hres = to_int32(ctx, argv[i], indexes+i);
  86         if(FAILED(hres)) {
  87             heap_free(indexes);
  88             return hres;
  89         }
  90     }
  91
  92     hres = SafeArrayGetElement(vbarray->safearray, indexes, (void*)&out);
  93     heap_free(indexes);
  94     if(hres == DISP_E_BADINDEX)
  95         return throw_range_error(ctx, JS_E_SUBSCRIPT_OUT_OF_RANGE, NULL);
  96     else if(FAILED(hres))
  97         return hres;
  98
  99     if(r) {
 100         hres = variant_to_jsval(&out, r);
 101         VariantClear(&out);
 102     }
 103     return hres;
 104 }
 105
 106 static HRESULT VBArray_lbound(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 107         jsval_t *r)
 108 {
 109     VBArrayInstance *vbarray;
 110     int dim;
 111     HRESULT hres;
 112
 113     TRACE("\n");
 114
 115     vbarray = vbarray_this(vthis);
 116     if(!vbarray)
 117         return throw_type_error(ctx, JS_E_VBARRAY_EXPECTED, NULL);
 118
 119     if(argc) {
 120         hres = to_int32(ctx, argv[0], &dim);
 121         if(FAILED(hres))
 122             return hres;
 123     } else
 124         dim = 1;
 125
 126     hres = SafeArrayGetLBound(vbarray->safearray, dim, &dim);
 127     if(hres == DISP_E_BADINDEX)
 128         return throw_range_error(ctx, JS_E_SUBSCRIPT_OUT_OF_RANGE, NULL);
 129     else if(FAILED(hres))
 130         return hres;
 131
 132     if(r)
 133         *r = jsval_number(dim);
 134     return S_OK;
 135 }
 136
 137 static HRESULT VBArray_toArray(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 138         jsval_t *r)
 139 {
 140     VBArrayInstance *vbarray;
 141     jsdisp_t *array;
 142     jsval_t val;
 143     VARIANT *v;
 144     int i, size = 1, ubound, lbound;
 145     HRESULT hres;
 146
 147     TRACE("\n");
 148
 149     vbarray = vbarray_this(vthis);
 150     if(!vbarray)
 151         return throw_type_error(ctx, JS_E_VBARRAY_EXPECTED, NULL);
 152
 153     for(i=1; i<=SafeArrayGetDim(vbarray->safearray); i++) {
 154         SafeArrayGetLBound(vbarray->safearray, i, &lbound);
 155         SafeArrayGetUBound(vbarray->safearray, i, &ubound);
 156         size *= ubound-lbound+1;
 157     }
 158
 159     hres = SafeArrayAccessData(vbarray->safearray, (void**)&v);
 160     if(FAILED(hres))
 161         return hres;
 162
 163     hres = create_array(ctx, 0, &array);
 164     if(FAILED(hres)) {
 165         SafeArrayUnaccessData(vbarray->safearray);
 166         return hres;
 167     }
 168
 169     for(i=0; i<size; i++) {
 170         hres = variant_to_jsval(v, &val);
 171         if(SUCCEEDED(hres)) {
 172             hres = jsdisp_propput_idx(array, i, val);
 173             jsval_release(val);
 174         }
 175         if(FAILED(hres)) {
 176             SafeArrayUnaccessData(vbarray->safearray);
 177             jsdisp_release(array);
 178             return hres;
 179         }
 180         v++;
 181     }
 182
 183     SafeArrayUnaccessData(vbarray->safearray);
 184
 185     if(r)
 186         *r = jsval_obj(array);
 187     else
 188         jsdisp_release(array);
 189     return S_OK;
 190 }
 191
 192 static HRESULT VBArray_ubound(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 193         jsval_t *r)
 194 {
 195     VBArrayInstance *vbarray;
 196     int dim;
 197     HRESULT hres;
 198
 199     TRACE("\n");
 200
 201     vbarray = vbarray_this(vthis);
 202     if(!vbarray)
 203         return throw_type_error(ctx, JS_E_VBARRAY_EXPECTED, NULL);
 204
 205     if(argc) {
 206         hres = to_int32(ctx, argv[0], &dim);
 207         if(FAILED(hres))
 208             return hres;
 209     } else
 210         dim = 1;
 211
 212     hres = SafeArrayGetUBound(vbarray->safearray, dim, &dim);
 213     if(hres == DISP_E_BADINDEX)
 214         return throw_range_error(ctx, JS_E_SUBSCRIPT_OUT_OF_RANGE, NULL);
 215     else if(FAILED(hres))
 216         return hres;
 217
 218     if(r)
 219         *r = jsval_number(dim);
 220     return S_OK;
 221 }
 222
 223 static HRESULT VBArray_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
 224         jsval_t *r)
 225 {
 226     FIXME("\n");
 227
 228     switch(flags) {
 229         default:
 230             FIXME("unimplemented flags %x\n", flags);
 231             return E_NOTIMPL;
 232     }
 233
 234     return S_OK;
 235 }
 236
 237 static void VBArray_destructor(jsdisp_t *dispex)
 238 {
 239     VBArrayInstance *vbarray = (VBArrayInstance*)dispex;
 240
 241     SafeArrayDestroy(vbarray->safearray);
 242     heap_free(vbarray);
 243 }
 244
 245 static const builtin_prop_t VBArray_props[] = {
 246     {dimensionsW,           VBArray_dimensions,         PROPF_METHOD},
 247     {getItemW,              VBArray_getItem,            PROPF_METHOD|1},
 248     {lboundW,               VBArray_lbound,             PROPF_METHOD},
 249     {toArrayW,              VBArray_toArray,            PROPF_METHOD},
 250     {uboundW,               VBArray_ubound,             PROPF_METHOD}
 251 };
 252
 253 static const builtin_info_t VBArray_info = {
 254     JSCLASS_VBARRAY,
 255     {NULL, VBArray_value, 0},
 256     sizeof(VBArray_props)/sizeof(*VBArray_props),
 257     VBArray_props,
 258     VBArray_destructor,
 259     NULL
 260 };
 261
 262 static HRESULT alloc_vbarray(script_ctx_t *ctx, jsdisp_t *object_prototype, VBArrayInstance **ret)
 263 {
 264     VBArrayInstance *vbarray;
 265     HRESULT hres;
 266
 267     vbarray = heap_alloc_zero(sizeof(VBArrayInstance));
 268     if(!vbarray)
 269         return E_OUTOFMEMORY;
 270
 271     if(object_prototype)
 272         hres = init_dispex(&vbarray->dispex, ctx, &VBArray_info, object_prototype);
 273     else
 274         hres = init_dispex_from_constr(&vbarray->dispex, ctx, &VBArray_info, ctx->vbarray_constr);
 275
 276     if(FAILED(hres)) {
 277         heap_free(vbarray);
 278         return hres;
 279     }
 280
 281     *ret = vbarray;
 282     return S_OK;
 283 }
 284
 285 static HRESULT VBArrayConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
 286         jsval_t *r)
 287 {
 288     VBArrayInstance *vbarray;
 289     HRESULT hres;
 290
 291     TRACE("\n");
 292
 293     switch(flags) {
 294     case DISPATCH_METHOD:
 295         if(argc<1 || !is_variant(argv[0]) || V_VT(get_variant(argv[0])) != (VT_ARRAY|VT_VARIANT))
 296             return throw_type_error(ctx, JS_E_VBARRAY_EXPECTED, NULL);
 297
 298         return jsval_copy(argv[0], r);
 299
 300     case DISPATCH_CONSTRUCT:
 301         if(argc<1 || !is_variant(argv[0]) || V_VT(get_variant(argv[0])) != (VT_ARRAY|VT_VARIANT))
 302             return throw_type_error(ctx, JS_E_VBARRAY_EXPECTED, NULL);
 303
 304         hres = alloc_vbarray(ctx, NULL, &vbarray);
 305         if(FAILED(hres))
 306             return hres;
 307
 308         hres = SafeArrayCopy(V_ARRAY(get_variant(argv[0])), &vbarray->safearray);
 309         if(FAILED(hres)) {
 310             jsdisp_release(&vbarray->dispex);
 311             return hres;
 312         }
 313
 314         *r = jsval_obj(&vbarray->dispex);
 315         break;
 316
 317     default:
 318         FIXME("unimplemented flags: %x\n", flags);
 319         return E_NOTIMPL;
 320     }
 321
 322     return S_OK;
 323 }
 324
 325 HRESULT create_vbarray_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
 326 {
 327     VBArrayInstance *vbarray;
 328     HRESULT hres;
 329
 330     static const WCHAR VBArrayW[] = {'V','B','A','r','r','a','y',0};
 331
 332     hres = alloc_vbarray(ctx, object_prototype, &vbarray);
 333     if(FAILED(hres))
 334         return hres;
 335
 336     hres = create_builtin_constructor(ctx, VBArrayConstr_value, VBArrayW, NULL, PROPF_CONSTR|1, &vbarray->dispex, ret);
 337
 338     jsdisp_release(&vbarray->dispex);
 339     return hres;
 340 }
 341
 342 HRESULT create_vbarray(script_ctx_t *ctx, SAFEARRAY *sa, jsdisp_t **ret)
 343 {
 344     VBArrayInstance *vbarray;
 345     HRESULT hres;
 346
 347     hres = alloc_vbarray(ctx, NULL, &vbarray);
 348     if(FAILED(hres))
 349         return hres;
 350
 351     hres = SafeArrayCopy(sa, &vbarray->safearray);
 352     if(FAILED(hres)) {
 353         jsdisp_release(&vbarray->dispex);
 354         return hres;
 355     }
 356
 357     *ret = &vbarray->dispex;
 358     return S_OK;
 359 }