dlls/jscript/dispex.c

   1 /*
   2  * Copyright 2008 Jacek 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/unicode.h"
  22 #include "wine/debug.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  25
  26 /*
  27  * This IID is used to get DispatchEx objecto from interface.
  28  * We might consider using private insteface instead.
  29  */
  30 static const IID IID_IDispatchJS =
  31         {0x719c3050,0xf9d3,0x11cf,{0xa4,0x93,0x00,0x40,0x05,0x23,0xa8,0xa6}};
  32
  33 typedef enum {
  34     PROP_VARIANT,
  35     PROP_BUILTIN,
  36     PROP_PROTREF,
  37     PROP_DELETED
  38 } prop_type_t;
  39
  40 struct _dispex_prop_t {
  41     WCHAR *name;
  42     prop_type_t type;
  43     DWORD flags;
  44
  45     union {
  46         VARIANT var;
  47         const builtin_prop_t *p;
  48         DWORD ref;
  49     } u;
  50 };
  51
  52 static inline DISPID prop_to_id(DispatchEx *This, dispex_prop_t *prop)
  53 {
  54     return prop - This->props;
  55 }
  56
  57 static inline dispex_prop_t *get_prop(DispatchEx *This, DISPID id)
  58 {
  59     if(id < 0 || id >= This->prop_cnt || This->props[id].type == PROP_DELETED)
  60         return NULL;
  61
  62     return This->props+id;
  63 }
  64
  65 static DWORD get_flags(DispatchEx *This, dispex_prop_t *prop)
  66 {
  67     if(prop->type == PROP_PROTREF) {
  68         dispex_prop_t *parent = get_prop(This->prototype, prop->u.ref);
  69         if(!parent) {
  70             prop->type = PROP_DELETED;
  71             return 0;
  72         }
  73
  74         return get_flags(This->prototype, parent);
  75     }
  76
  77     return prop->flags;
  78 }
  79
  80 static const builtin_prop_t *find_builtin_prop(DispatchEx *This, const WCHAR *name)
  81 {
  82     int min = 0, max, i, r;
  83
  84     max = This->builtin_info->props_cnt-1;
  85     while(min <= max) {
  86         i = (min+max)/2;
  87
  88         r = strcmpW(name, This->builtin_info->props[i].name);
  89         if(!r)
  90             return This->builtin_info->props + i;
  91
  92         if(r < 0)
  93             max = i-1;
  94         else
  95             min = i+1;
  96     }
  97
  98     return NULL;
  99 }
 100
 101 static dispex_prop_t *alloc_prop(DispatchEx *This, const WCHAR *name, prop_type_t type, DWORD flags)
 102 {
 103     dispex_prop_t *ret;
 104
 105     if(This->buf_size == This->prop_cnt) {
 106         dispex_prop_t *tmp = heap_realloc(This->props, (This->buf_size<<=1)*sizeof(*This->props));
 107         if(!tmp)
 108             return NULL;
 109         This->props = tmp;
 110     }
 111
 112     ret = This->props + This->prop_cnt++;
 113     ret->type = type;
 114     ret->flags = flags;
 115     ret->name = heap_strdupW(name);
 116     if(!ret->name)
 117         return NULL;
 118
 119     return ret;
 120 }
 121
 122 static dispex_prop_t *alloc_protref(DispatchEx *This, const WCHAR *name, DWORD ref)
 123 {
 124     dispex_prop_t *ret;
 125
 126     ret = alloc_prop(This, name, PROP_PROTREF, 0);
 127     if(!ret)
 128         return NULL;
 129
 130     ret->u.ref = ref;
 131     return ret;
 132 }
 133
 134 static HRESULT find_prop_name(DispatchEx *This, const WCHAR *name, dispex_prop_t **ret)
 135 {
 136     const builtin_prop_t *builtin;
 137     dispex_prop_t *prop;
 138
 139     for(prop = This->props; prop < This->props+This->prop_cnt; prop++) {
 140         if(prop->name && !strcmpW(prop->name, name)) {
 141             *ret = prop;
 142             return S_OK;
 143         }
 144     }
 145
 146     builtin = find_builtin_prop(This, name);
 147     if(builtin) {
 148         prop = alloc_prop(This, name, PROP_BUILTIN, builtin->flags);
 149         if(!prop)
 150             return E_OUTOFMEMORY;
 151
 152         prop->u.p = builtin;
 153         *ret = prop;
 154         return S_OK;
 155     }
 156
 157     *ret = NULL;
 158     return S_OK;
 159 }
 160
 161 static HRESULT find_prop_name_prot(DispatchEx *This, const WCHAR *name, BOOL alloc, dispex_prop_t **ret)
 162 {
 163     dispex_prop_t *prop;
 164     HRESULT hres;
 165
 166     hres = find_prop_name(This, name, &prop);
 167     if(FAILED(hres))
 168         return hres;
 169     if(prop) {
 170         *ret = prop;
 171         return S_OK;
 172     }
 173
 174     if(This->prototype) {
 175         hres = find_prop_name_prot(This->prototype, name, FALSE, &prop);
 176         if(FAILED(hres))
 177             return hres;
 178         if(prop) {
 179             prop = alloc_protref(This, prop->name, prop - This->prototype->props);
 180             if(!prop)
 181                 return E_OUTOFMEMORY;
 182             *ret = prop;
 183             return S_OK;
 184         }
 185     }
 186
 187     if(alloc) {
 188         TRACE("creating prop %s\n", debugstr_w(name));
 189
 190         prop = alloc_prop(This, name, PROP_VARIANT, PROPF_ENUM);
 191         if(!prop)
 192             return E_OUTOFMEMORY;
 193         VariantInit(&prop->u.var);
 194     }
 195
 196     *ret = prop;
 197     return S_OK;
 198 }
 199
 200 static HRESULT set_this(DISPPARAMS *dp, DISPPARAMS *olddp, IDispatch *jsthis)
 201 {
 202     VARIANTARG *oldargs;
 203     int i;
 204
 205     static DISPID this_id = DISPID_THIS;
 206
 207     *dp = *olddp;
 208
 209     for(i = 0; i < dp->cNamedArgs; i++) {
 210         if(dp->rgdispidNamedArgs[i] == DISPID_THIS)
 211             return S_OK;
 212     }
 213
 214     oldargs = dp->rgvarg;
 215     dp->rgvarg = heap_alloc((dp->cArgs+1) * sizeof(VARIANTARG));
 216     if(!dp->rgvarg)
 217         return E_OUTOFMEMORY;
 218     memcpy(dp->rgvarg+1, oldargs, dp->cArgs*sizeof(VARIANTARG));
 219     V_VT(dp->rgvarg) = VT_DISPATCH;
 220     V_DISPATCH(dp->rgvarg) = jsthis;
 221     dp->cArgs++;
 222
 223     if(dp->cNamedArgs) {
 224         DISPID *old = dp->rgdispidNamedArgs;
 225         dp->rgdispidNamedArgs = heap_alloc((dp->cNamedArgs+1)*sizeof(DISPID));
 226         if(!dp->rgdispidNamedArgs) {
 227             heap_free(dp->rgvarg);
 228             return E_OUTOFMEMORY;
 229         }
 230
 231         memcpy(dp->rgdispidNamedArgs+1, old, dp->cNamedArgs*sizeof(DISPID));
 232         dp->rgdispidNamedArgs[0] = DISPID_THIS;
 233         dp->cNamedArgs++;
 234     }else {
 235         dp->rgdispidNamedArgs = &this_id;
 236         dp->cNamedArgs = 1;
 237     }
 238
 239     return S_OK;
 240 }
 241
 242 static HRESULT invoke_prop_func(DispatchEx *This, DispatchEx *jsthis, dispex_prop_t *prop, LCID lcid, WORD flags,
 243         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 244 {
 245     HRESULT hres;
 246
 247     switch(prop->type) {
 248     case PROP_BUILTIN:
 249         if(flags == DISPATCH_CONSTRUCT && (prop->flags & DISPATCH_METHOD)) {
 250             WARN("%s is not a constructor\n", debugstr_w(prop->name));
 251             return E_INVALIDARG;
 252         }
 253         return prop->u.p->invoke(jsthis, lcid, flags, dp, retv, ei, caller);
 254     case PROP_PROTREF:
 255         return invoke_prop_func(This->prototype, jsthis, This->prototype->props+prop->u.ref, lcid, flags, dp, retv, ei, caller);
 256     case PROP_VARIANT: {
 257         DISPPARAMS new_dp;
 258
 259         if(V_VT(&prop->u.var) != VT_DISPATCH) {
 260             FIXME("invoke vt %d\n", V_VT(&prop->u.var));
 261             return E_FAIL;
 262         }
 263
 264         TRACE("call %s %p\n", debugstr_w(prop->name), V_DISPATCH(&prop->u.var));
 265
 266         hres = set_this(&new_dp, dp, (IDispatch*)_IDispatchEx_(jsthis));
 267         if(FAILED(hres))
 268             return hres;
 269
 270         hres = disp_call(V_DISPATCH(&prop->u.var), DISPID_VALUE, lcid, flags, &new_dp, retv, ei, caller);
 271
 272         if(new_dp.rgvarg != dp->rgvarg) {
 273             heap_free(new_dp.rgvarg);
 274             if(new_dp.cNamedArgs > 1)
 275                 heap_free(new_dp.rgdispidNamedArgs);
 276         }
 277
 278         return hres;
 279     }
 280     default:
 281         ERR("type %d\n", prop->type);
 282     }
 283
 284     return E_FAIL;
 285 }
 286
 287 static HRESULT prop_get(DispatchEx *This, dispex_prop_t *prop, LCID lcid, DISPPARAMS *dp,
 288         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 289 {
 290     HRESULT hres;
 291
 292     switch(prop->type) {
 293     case PROP_BUILTIN:
 294         if(prop->u.p->flags & PROPF_METHOD) {
 295             DispatchEx *obj;
 296             hres = create_builtin_function(This->ctx, prop->u.p->invoke, prop->u.p->flags, NULL, &obj);
 297             if(FAILED(hres))
 298                 break;
 299
 300             prop->type = PROP_VARIANT;
 301             V_VT(&prop->u.var) = VT_DISPATCH;
 302             V_DISPATCH(&prop->u.var) = (IDispatch*)_IDispatchEx_(obj);
 303
 304             hres = VariantCopy(retv, &prop->u.var);
 305         }else {
 306             hres = prop->u.p->invoke(This, lcid, DISPATCH_PROPERTYGET, dp, retv, ei, caller);
 307         }
 308         break;
 309     case PROP_PROTREF:
 310         hres = prop_get(This->prototype, This->prototype->props+prop->u.ref, lcid, dp, retv, ei, caller);
 311         break;
 312     case PROP_VARIANT:
 313         hres = VariantCopy(retv, &prop->u.var);
 314         break;
 315     default:
 316         ERR("type %d\n", prop->type);
 317         return E_FAIL;
 318     }
 319
 320     if(FAILED(hres)) {
 321         TRACE("fail %08x\n", hres);
 322         return hres;
 323     }
 324
 325     TRACE("%s ret %s\n", debugstr_w(prop->name), debugstr_variant(retv));
 326     return hres;
 327 }
 328
 329 static HRESULT prop_put(DispatchEx *This, dispex_prop_t *prop, LCID lcid, DISPPARAMS *dp,
 330         jsexcept_t *ei, IServiceProvider *caller)
 331 {
 332     DWORD i;
 333     HRESULT hres;
 334
 335     switch(prop->type) {
 336     case PROP_BUILTIN:
 337         if(!(prop->flags & PROPF_METHOD))
 338             return prop->u.p->invoke(This, lcid, DISPATCH_PROPERTYPUT, dp, NULL, ei, caller);
 339     case PROP_PROTREF:
 340         prop->type = PROP_VARIANT;
 341         prop->flags = PROPF_ENUM;
 342         V_VT(&prop->u.var) = VT_EMPTY;
 343         break;
 344     case PROP_VARIANT:
 345         VariantClear(&prop->u.var);
 346         break;
 347     default:
 348         ERR("type %d\n", prop->type);
 349         return E_FAIL;
 350     }
 351
 352     for(i=0; i < dp->cNamedArgs; i++) {
 353         if(dp->rgdispidNamedArgs[i] == DISPID_PROPERTYPUT)
 354             break;
 355     }
 356
 357     if(i == dp->cNamedArgs) {
 358         TRACE("no value to set\n");
 359         return DISP_E_PARAMNOTOPTIONAL;
 360     }
 361
 362     hres = VariantCopy(&prop->u.var, dp->rgvarg+i);
 363     if(FAILED(hres))
 364         return hres;
 365
 366     if(This->builtin_info->on_put)
 367         This->builtin_info->on_put(This, prop->name);
 368
 369     TRACE("%s = %s\n", debugstr_w(prop->name), debugstr_variant(dp->rgvarg+i));
 370     return S_OK;
 371 }
 372
 373 static HRESULT fill_protrefs(DispatchEx *This)
 374 {
 375     dispex_prop_t *iter, *prop;
 376     HRESULT hres;
 377
 378     if(!This->prototype)
 379         return S_OK;
 380
 381     fill_protrefs(This->prototype);
 382
 383     for(iter = This->prototype->props; iter < This->prototype->props+This->prototype->prop_cnt; iter++) {
 384         hres = find_prop_name(This, iter->name, &prop);
 385         if(FAILED(hres))
 386             return hres;
 387         if(!prop) {
 388             prop = alloc_protref(This, iter->name, iter - This->prototype->props);
 389             if(!prop)
 390                 return E_OUTOFMEMORY;
 391         }
 392     }
 393
 394     return S_OK;
 395 }
 396
 397 #define DISPATCHEX_THIS(iface) DEFINE_THIS(DispatchEx, IDispatchEx, iface)
 398
 399 static HRESULT WINAPI DispatchEx_QueryInterface(IDispatchEx *iface, REFIID riid, void **ppv)
 400 {
 401     DispatchEx *This = DISPATCHEX_THIS(iface);
 402
 403     if(IsEqualGUID(&IID_IUnknown, riid)) {
 404         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 405         *ppv = _IDispatchEx_(This);
 406     }else if(IsEqualGUID(&IID_IDispatch, riid)) {
 407         TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
 408         *ppv = _IDispatchEx_(This);
 409     }else if(IsEqualGUID(&IID_IDispatchEx, riid)) {
 410         TRACE("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
 411         *ppv = _IDispatchEx_(This);
 412     }else if(IsEqualGUID(&IID_IDispatchJS, riid)) {
 413         TRACE("(%p)->(IID_IDispatchJS %p)\n", This, ppv);
 414         IUnknown_AddRef(_IDispatchEx_(This));
 415         *ppv = This;
 416         return S_OK;
 417     }else {
 418         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
 419         *ppv = NULL;
 420         return E_NOINTERFACE;
 421     }
 422
 423     IUnknown_AddRef((IUnknown*)*ppv);
 424     return S_OK;
 425 }
 426
 427 static ULONG WINAPI DispatchEx_AddRef(IDispatchEx *iface)
 428 {
 429     DispatchEx *This = DISPATCHEX_THIS(iface);
 430     LONG ref = InterlockedIncrement(&This->ref);
 431
 432     TRACE("(%p) ref=%d\n", This, ref);
 433
 434     return ref;
 435 }
 436
 437 static ULONG WINAPI DispatchEx_Release(IDispatchEx *iface)
 438 {
 439     DispatchEx *This = DISPATCHEX_THIS(iface);
 440     LONG ref = InterlockedDecrement(&This->ref);
 441
 442     TRACE("(%p) ref=%d\n", This, ref);
 443
 444     if(!ref) {
 445         dispex_prop_t *prop;
 446
 447         for(prop = This->props; prop < This->props+This->prop_cnt; prop++) {
 448             if(prop->type == PROP_VARIANT)
 449                 VariantClear(&prop->u.var);
 450             heap_free(prop->name);
 451         }
 452         heap_free(This->props);
 453         script_release(This->ctx);
 454
 455         if(This->builtin_info->destructor)
 456             This->builtin_info->destructor(This);
 457         else
 458             heap_free(This);
 459     }
 460
 461     return ref;
 462 }
 463
 464 static HRESULT WINAPI DispatchEx_GetTypeInfoCount(IDispatchEx *iface, UINT *pctinfo)
 465 {
 466     DispatchEx *This = DISPATCHEX_THIS(iface);
 467
 468     TRACE("(%p)->(%p)\n", This, pctinfo);
 469
 470     *pctinfo = 1;
 471     return S_OK;
 472 }
 473
 474 static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo,
 475                                               LCID lcid, ITypeInfo **ppTInfo)
 476 {
 477     DispatchEx *This = DISPATCHEX_THIS(iface);
 478     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 479     return E_NOTIMPL;
 480 }
 481
 482 static HRESULT WINAPI DispatchEx_GetIDsOfNames(IDispatchEx *iface, REFIID riid,
 483                                                 LPOLESTR *rgszNames, UINT cNames,
 484                                                 LCID lcid, DISPID *rgDispId)
 485 {
 486     DispatchEx *This = DISPATCHEX_THIS(iface);
 487     UINT i;
 488     HRESULT hres;
 489
 490     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 491           lcid, rgDispId);
 492
 493     for(i=0; i < cNames; i++) {
 494         hres = IDispatchEx_GetDispID(_IDispatchEx_(This), rgszNames[i], 0, rgDispId+i);
 495         if(FAILED(hres))
 496             return hres;
 497     }
 498
 499     return S_OK;
 500 }
 501
 502 static HRESULT WINAPI DispatchEx_Invoke(IDispatchEx *iface, DISPID dispIdMember,
 503                             REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 504                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 505 {
 506     DispatchEx *This = DISPATCHEX_THIS(iface);
 507
 508     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 509           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 510
 511     return IDispatchEx_InvokeEx(_IDispatchEx_(This), dispIdMember, lcid, wFlags,
 512             pDispParams, pVarResult, pExcepInfo, NULL);
 513 }
 514
 515 static HRESULT WINAPI DispatchEx_GetDispID(IDispatchEx *iface, BSTR bstrName, DWORD grfdex, DISPID *pid)
 516 {
 517     DispatchEx *This = DISPATCHEX_THIS(iface);
 518     dispex_prop_t *prop;
 519     HRESULT hres;
 520
 521     TRACE("(%p)->(%s %x %p)\n", This, debugstr_w(bstrName), grfdex, pid);
 522
 523     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit)) {
 524         FIXME("Unsupported grfdex %x\n", grfdex);
 525         return E_NOTIMPL;
 526     }
 527
 528     hres = find_prop_name_prot(This, bstrName, (grfdex&fdexNameEnsure) != 0, &prop);
 529     if(FAILED(hres))
 530         return hres;
 531     if(prop) {
 532         *pid = prop_to_id(This, prop);
 533         return S_OK;
 534     }
 535
 536     TRACE("not found %s\n", debugstr_w(bstrName));
 537     return DISP_E_UNKNOWNNAME;
 538 }
 539
 540 static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lcid, WORD wFlags, DISPPARAMS *pdp,
 541         VARIANT *pvarRes, EXCEPINFO *pei, IServiceProvider *pspCaller)
 542 {
 543     DispatchEx *This = DISPATCHEX_THIS(iface);
 544     dispex_prop_t *prop;
 545     jsexcept_t jsexcept;
 546     HRESULT hres;
 547
 548     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 549
 550     if(pvarRes)
 551         V_VT(pvarRes) = VT_EMPTY;
 552
 553     prop = get_prop(This, id);
 554     if(!prop || prop->type == PROP_DELETED) {
 555         TRACE("invalid id\n");
 556         return DISP_E_MEMBERNOTFOUND;
 557     }
 558
 559     memset(&jsexcept, 0, sizeof(jsexcept));
 560
 561     switch(wFlags) {
 562     case DISPATCH_METHOD:
 563     case DISPATCH_CONSTRUCT:
 564         hres = invoke_prop_func(This, This, prop, lcid, wFlags, pdp, pvarRes, &jsexcept, pspCaller);
 565         break;
 566     case DISPATCH_PROPERTYGET:
 567         hres = prop_get(This, prop, lcid, pdp, pvarRes, &jsexcept, pspCaller);
 568         break;
 569     case DISPATCH_PROPERTYPUT:
 570         hres = prop_put(This, prop, lcid, pdp, &jsexcept, pspCaller);
 571         break;
 572     default:
 573         FIXME("Unimplemented flags %x\n", wFlags);
 574         return E_INVALIDARG;
 575     }
 576
 577     if(pei)
 578         *pei = jsexcept.ei;
 579
 580     return hres;
 581 }
 582
 583 static HRESULT WINAPI DispatchEx_DeleteMemberByName(IDispatchEx *iface, BSTR bstrName, DWORD grfdex)
 584 {
 585     DispatchEx *This = DISPATCHEX_THIS(iface);
 586     dispex_prop_t *prop;
 587     HRESULT hres;
 588
 589     TRACE("(%p)->(%s %x)\n", This, debugstr_w(bstrName), grfdex);
 590
 591     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit))
 592         FIXME("Unsupported grfdex %x\n", grfdex);
 593
 594     hres = find_prop_name(This, bstrName, &prop);
 595     if(FAILED(hres))
 596         return hres;
 597     if(!prop) {
 598         TRACE("not found\n");
 599         return S_OK;
 600     }
 601
 602     heap_free(prop->name);
 603     prop->name = NULL;
 604     prop->type = PROP_DELETED;
 605     return S_OK;
 606 }
 607
 608 static HRESULT WINAPI DispatchEx_DeleteMemberByDispID(IDispatchEx *iface, DISPID id)
 609 {
 610     DispatchEx *This = DISPATCHEX_THIS(iface);
 611     FIXME("(%p)->(%x)\n", This, id);
 612     return E_NOTIMPL;
 613 }
 614
 615 static HRESULT WINAPI DispatchEx_GetMemberProperties(IDispatchEx *iface, DISPID id, DWORD grfdexFetch, DWORD *pgrfdex)
 616 {
 617     DispatchEx *This = DISPATCHEX_THIS(iface);
 618     FIXME("(%p)->(%x %x %p)\n", This, id, grfdexFetch, pgrfdex);
 619     return E_NOTIMPL;
 620 }
 621
 622 static HRESULT WINAPI DispatchEx_GetMemberName(IDispatchEx *iface, DISPID id, BSTR *pbstrName)
 623 {
 624     DispatchEx *This = DISPATCHEX_THIS(iface);
 625     dispex_prop_t *prop;
 626
 627     TRACE("(%p)->(%x %p)\n", This, id, pbstrName);
 628
 629     prop = get_prop(This, id);
 630     if(!prop || !prop->name || prop->type == PROP_DELETED)
 631         return DISP_E_MEMBERNOTFOUND;
 632
 633     *pbstrName = SysAllocString(prop->name);
 634     if(!*pbstrName)
 635         return E_OUTOFMEMORY;
 636
 637     return S_OK;
 638 }
 639
 640 static HRESULT WINAPI DispatchEx_GetNextDispID(IDispatchEx *iface, DWORD grfdex, DISPID id, DISPID *pid)
 641 {
 642     DispatchEx *This = DISPATCHEX_THIS(iface);
 643     dispex_prop_t *iter;
 644     HRESULT hres;
 645
 646     TRACE("(%p)->(%x %x %p)\n", This, grfdex, id, pid);
 647
 648     if(id == DISPID_STARTENUM) {
 649         hres = fill_protrefs(This);
 650         if(FAILED(hres))
 651             return hres;
 652     }
 653
 654     iter = get_prop(This, id+1);
 655     if(!iter) {
 656         *pid = DISPID_STARTENUM;
 657         return S_FALSE;
 658     }
 659
 660     while(iter < This->props + This->prop_cnt) {
 661         if(iter->name && (get_flags(This, iter) & PROPF_ENUM)) {
 662             *pid = prop_to_id(This, iter);
 663             return S_OK;
 664         }
 665         iter++;
 666     }
 667
 668     *pid = DISPID_STARTENUM;
 669     return S_FALSE;
 670 }
 671
 672 static HRESULT WINAPI DispatchEx_GetNameSpaceParent(IDispatchEx *iface, IUnknown **ppunk)
 673 {
 674     DispatchEx *This = DISPATCHEX_THIS(iface);
 675     FIXME("(%p)->(%p)\n", This, ppunk);
 676     return E_NOTIMPL;
 677 }
 678
 679 #undef DISPATCHEX_THIS
 680
 681 static IDispatchExVtbl DispatchExVtbl = {
 682     DispatchEx_QueryInterface,
 683     DispatchEx_AddRef,
 684     DispatchEx_Release,
 685     DispatchEx_GetTypeInfoCount,
 686     DispatchEx_GetTypeInfo,
 687     DispatchEx_GetIDsOfNames,
 688     DispatchEx_Invoke,
 689     DispatchEx_GetDispID,
 690     DispatchEx_InvokeEx,
 691     DispatchEx_DeleteMemberByName,
 692     DispatchEx_DeleteMemberByDispID,
 693     DispatchEx_GetMemberProperties,
 694     DispatchEx_GetMemberName,
 695     DispatchEx_GetNextDispID,
 696     DispatchEx_GetNameSpaceParent
 697 };
 698
 699 HRESULT jsdisp_set_prototype(DispatchEx *dispex, DispatchEx *prototype)
 700 {
 701     VARIANT *var;
 702
 703     if(!dispex->props[1].name)
 704         return E_OUTOFMEMORY;
 705
 706     dispex->props[1].type = PROP_VARIANT;
 707     dispex->props[1].flags = 0;
 708
 709     var = &dispex->props[1].u.var;
 710     V_VT(var) = VT_DISPATCH;
 711     V_DISPATCH(var) = (IDispatch*)_IDispatchEx_(prototype);
 712
 713     return S_OK;
 714 }
 715
 716 HRESULT init_dispex(DispatchEx *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, DispatchEx *prototype)
 717 {
 718     TRACE("%p (%p)\n", dispex, prototype);
 719
 720     dispex->lpIDispatchExVtbl = &DispatchExVtbl;
 721     dispex->ref = 1;
 722     dispex->builtin_info = builtin_info;
 723
 724     dispex->props = heap_alloc((dispex->buf_size=4) * sizeof(dispex_prop_t));
 725     if(!dispex->props)
 726         return E_OUTOFMEMORY;
 727
 728     dispex->prototype = prototype;
 729     if(prototype)
 730         IDispatchEx_AddRef(_IDispatchEx_(prototype));
 731
 732     dispex->prop_cnt = 1;
 733     dispex->props[0].name = NULL;
 734     dispex->props[0].flags = 0;
 735     if(builtin_info->value_prop.invoke) {
 736         dispex->props[0].type = PROP_BUILTIN;
 737         dispex->props[0].u.p = &builtin_info->value_prop;
 738     }else {
 739         dispex->props[0].type = PROP_DELETED;
 740     }
 741
 742     script_addref(ctx);
 743     dispex->ctx = ctx;
 744
 745     return S_OK;
 746 }
 747
 748 static const builtin_info_t dispex_info = {
 749     JSCLASS_NONE,
 750     {NULL, NULL, 0},
 751     0, NULL,
 752     NULL,
 753     NULL
 754 };
 755
 756 HRESULT create_dispex(script_ctx_t *ctx, const builtin_info_t *builtin_info, DispatchEx *prototype, DispatchEx **dispex)
 757 {
 758     DispatchEx *ret;
 759     HRESULT hres;
 760
 761     ret = heap_alloc_zero(sizeof(DispatchEx));
 762     if(!ret)
 763         return E_OUTOFMEMORY;
 764
 765     hres = init_dispex(ret, ctx, builtin_info ? builtin_info : &dispex_info, prototype);
 766     if(FAILED(hres))
 767         return hres;
 768
 769     *dispex = ret;
 770     return S_OK;
 771 }
 772
 773 HRESULT init_dispex_from_constr(DispatchEx *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, DispatchEx *constr)
 774 {
 775     DispatchEx *prot = NULL;
 776     dispex_prop_t *prop;
 777     HRESULT hres;
 778
 779     static const WCHAR prototypeW[] = {'p','r','o','t','o','t','y','p','e',0};
 780
 781     hres = find_prop_name_prot(constr, prototypeW, FALSE, &prop);
 782     if(SUCCEEDED(hres) && prop) {
 783         jsexcept_t jsexcept;
 784         VARIANT var;
 785
 786         V_VT(&var) = VT_EMPTY;
 787         memset(&jsexcept, 0, sizeof(jsexcept));
 788         hres = prop_get(constr, prop, ctx->lcid, NULL, &var, &jsexcept, NULL/*FIXME*/);
 789         if(FAILED(hres)) {
 790             ERR("Could not get prototype\n");
 791             return hres;
 792         }
 793
 794         if(V_VT(&var) == VT_DISPATCH)
 795             prot = iface_to_jsdisp((IUnknown*)V_DISPATCH(&var));
 796         VariantClear(&var);
 797     }
 798
 799     hres = init_dispex(dispex, ctx, builtin_info, prot);
 800
 801     if(prot)
 802         IDispatchEx_Release(_IDispatchEx_(prot));
 803     return hres;
 804 }
 805
 806 DispatchEx *iface_to_jsdisp(IUnknown *iface)
 807 {
 808     DispatchEx *ret;
 809     HRESULT hres;
 810
 811     hres = IUnknown_QueryInterface(iface, &IID_IDispatchJS, (void**)&ret);
 812     if(FAILED(hres))
 813         return NULL;
 814
 815     return ret;
 816 }
 817
 818 HRESULT jsdisp_call_value(DispatchEx *disp, LCID lcid, WORD flags, DISPPARAMS *dp, VARIANT *retv,
 819         jsexcept_t *ei, IServiceProvider *caller)
 820 {
 821     return disp->builtin_info->value_prop.invoke(disp, lcid, flags, dp, retv, ei, caller);
 822 }
 823
 824 HRESULT jsdisp_call(DispatchEx *disp, DISPID id, LCID lcid, WORD flags, DISPPARAMS *dp, VARIANT *retv,
 825         jsexcept_t *ei, IServiceProvider *caller)
 826 {
 827     dispex_prop_t *prop;
 828
 829     memset(ei, 0, sizeof(*ei));
 830     if(retv)
 831         V_VT(retv) = VT_EMPTY;
 832
 833     prop = get_prop(disp, id);
 834     if(!prop)
 835         return DISP_E_MEMBERNOTFOUND;
 836
 837     return invoke_prop_func(disp, disp, prop, lcid, flags, dp, retv, ei, caller);
 838 }
 839
 840 HRESULT disp_call(IDispatch *disp, DISPID id, LCID lcid, WORD flags, DISPPARAMS *dp, VARIANT *retv,
 841         jsexcept_t *ei, IServiceProvider *caller)
 842 {
 843     DispatchEx *jsdisp;
 844     IDispatchEx *dispex;
 845     HRESULT hres;
 846
 847     jsdisp = iface_to_jsdisp((IUnknown*)disp);
 848     if(jsdisp) {
 849         hres = jsdisp_call(jsdisp, id, lcid, flags, dp, retv, ei, caller);
 850         IDispatchEx_Release(_IDispatchEx_(jsdisp));
 851         return hres;
 852     }
 853
 854     memset(ei, 0, sizeof(*ei));
 855
 856     if(retv)
 857         V_VT(retv) = VT_EMPTY;
 858     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 859     if(FAILED(hres)) {
 860         UINT err = 0;
 861
 862         TRACE("using IDispatch\n");
 863         return IDispatch_Invoke(disp, id, &IID_NULL, lcid, flags, dp, retv, &ei->ei, &err);
 864     }
 865
 866     hres = IDispatchEx_InvokeEx(dispex, id, lcid, flags, dp, retv, &ei->ei, caller);
 867     IDispatchEx_Release(dispex);
 868
 869     return hres;
 870 }
 871
 872 HRESULT jsdisp_propput_name(DispatchEx *obj, const WCHAR *name, LCID lcid, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
 873 {
 874     DISPID named_arg = DISPID_PROPERTYPUT;
 875     DISPPARAMS dp = {val, &named_arg, 1, 1};
 876     dispex_prop_t *prop;
 877     HRESULT hres;
 878
 879     hres = find_prop_name_prot(obj, name, TRUE, &prop);
 880     if(FAILED(hres))
 881         return hres;
 882
 883     return prop_put(obj, prop, lcid, &dp, ei, caller);
 884 }
 885
 886 HRESULT disp_propput(IDispatch *disp, DISPID id, LCID lcid, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
 887 {
 888     DISPID dispid = DISPID_PROPERTYPUT;
 889     DISPPARAMS dp  = {val, &dispid, 1, 1};
 890     IDispatchEx *dispex;
 891     DispatchEx *jsdisp;
 892     HRESULT hres;
 893
 894     jsdisp = iface_to_jsdisp((IUnknown*)disp);
 895     if(jsdisp) {
 896         dispex_prop_t *prop;
 897
 898         prop = get_prop(jsdisp, id);
 899         if(prop)
 900             hres = prop_put(jsdisp, prop, lcid, &dp, ei, caller);
 901         else
 902             hres = DISP_E_MEMBERNOTFOUND;
 903
 904         IDispatchEx_Release(_IDispatchEx_(jsdisp));
 905         return hres;
 906     }
 907
 908     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 909     if(FAILED(hres)) {
 910         ULONG err = 0;
 911
 912         TRACE("using IDispatch\n");
 913         return IDispatch_Invoke(disp, id, &IID_NULL, DISPATCH_PROPERTYPUT, lcid, &dp, NULL, &ei->ei, &err);
 914     }
 915
 916     hres = IDispatchEx_InvokeEx(dispex, id, lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ei->ei, caller);
 917
 918     IDispatchEx_Release(dispex);
 919     return hres;
 920 }
 921
 922 HRESULT disp_propget(IDispatch *disp, DISPID id, LCID lcid, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
 923 {
 924     DISPPARAMS dp  = {NULL,NULL,0,0};
 925     IDispatchEx *dispex;
 926     DispatchEx *jsdisp;
 927     HRESULT hres;
 928
 929     jsdisp = iface_to_jsdisp((IUnknown*)disp);
 930     if(jsdisp) {
 931         dispex_prop_t *prop;
 932
 933         prop = get_prop(jsdisp, id);
 934         if(prop)
 935             hres = prop_get(jsdisp, prop, lcid, &dp, val, ei, caller);
 936         else
 937             hres = DISP_E_MEMBERNOTFOUND;
 938
 939         IDispatchEx_Release(_IDispatchEx_(jsdisp));
 940         return hres;
 941     }
 942
 943     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 944     if(FAILED(hres)) {
 945         ULONG err = 0;
 946
 947         TRACE("uding IDispatch\n");
 948         return IDispatchEx_Invoke(dispex, id, &IID_NULL, lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei, &err);
 949     }
 950
 951     hres = IDispatchEx_InvokeEx(dispex, id, lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei, caller);
 952     IDispatchEx_Release(dispex);
 953
 954     return hres;
 955 }