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, NULL, 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         if(!iter->name)
 385             continue;
 386         hres = find_prop_name(This, iter->name, &prop);
 387         if(FAILED(hres))
 388             return hres;
 389         if(!prop) {
 390             prop = alloc_protref(This, iter->name, iter - This->prototype->props);
 391             if(!prop)
 392                 return E_OUTOFMEMORY;
 393         }
 394     }
 395
 396     return S_OK;
 397 }
 398
 399 #define DISPATCHEX_THIS(iface) DEFINE_THIS(DispatchEx, IDispatchEx, iface)
 400
 401 static HRESULT WINAPI DispatchEx_QueryInterface(IDispatchEx *iface, REFIID riid, void **ppv)
 402 {
 403     DispatchEx *This = DISPATCHEX_THIS(iface);
 404
 405     if(IsEqualGUID(&IID_IUnknown, riid)) {
 406         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 407         *ppv = _IDispatchEx_(This);
 408     }else if(IsEqualGUID(&IID_IDispatch, riid)) {
 409         TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
 410         *ppv = _IDispatchEx_(This);
 411     }else if(IsEqualGUID(&IID_IDispatchEx, riid)) {
 412         TRACE("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
 413         *ppv = _IDispatchEx_(This);
 414     }else if(IsEqualGUID(&IID_IDispatchJS, riid)) {
 415         TRACE("(%p)->(IID_IDispatchJS %p)\n", This, ppv);
 416         IUnknown_AddRef(_IDispatchEx_(This));
 417         *ppv = This;
 418         return S_OK;
 419     }else {
 420         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
 421         *ppv = NULL;
 422         return E_NOINTERFACE;
 423     }
 424
 425     IUnknown_AddRef((IUnknown*)*ppv);
 426     return S_OK;
 427 }
 428
 429 static ULONG WINAPI DispatchEx_AddRef(IDispatchEx *iface)
 430 {
 431     DispatchEx *This = DISPATCHEX_THIS(iface);
 432     LONG ref = InterlockedIncrement(&This->ref);
 433
 434     TRACE("(%p) ref=%d\n", This, ref);
 435
 436     return ref;
 437 }
 438
 439 static ULONG WINAPI DispatchEx_Release(IDispatchEx *iface)
 440 {
 441     DispatchEx *This = DISPATCHEX_THIS(iface);
 442     LONG ref = InterlockedDecrement(&This->ref);
 443
 444     TRACE("(%p) ref=%d\n", This, ref);
 445
 446     if(!ref) {
 447         dispex_prop_t *prop;
 448
 449         for(prop = This->props; prop < This->props+This->prop_cnt; prop++) {
 450             if(prop->type == PROP_VARIANT)
 451                 VariantClear(&prop->u.var);
 452             heap_free(prop->name);
 453         }
 454         heap_free(This->props);
 455         script_release(This->ctx);
 456
 457         if(This->builtin_info->destructor)
 458             This->builtin_info->destructor(This);
 459         else
 460             heap_free(This);
 461     }
 462
 463     return ref;
 464 }
 465
 466 static HRESULT WINAPI DispatchEx_GetTypeInfoCount(IDispatchEx *iface, UINT *pctinfo)
 467 {
 468     DispatchEx *This = DISPATCHEX_THIS(iface);
 469
 470     TRACE("(%p)->(%p)\n", This, pctinfo);
 471
 472     *pctinfo = 1;
 473     return S_OK;
 474 }
 475
 476 static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo,
 477                                               LCID lcid, ITypeInfo **ppTInfo)
 478 {
 479     DispatchEx *This = DISPATCHEX_THIS(iface);
 480     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 481     return E_NOTIMPL;
 482 }
 483
 484 static HRESULT WINAPI DispatchEx_GetIDsOfNames(IDispatchEx *iface, REFIID riid,
 485                                                 LPOLESTR *rgszNames, UINT cNames,
 486                                                 LCID lcid, DISPID *rgDispId)
 487 {
 488     DispatchEx *This = DISPATCHEX_THIS(iface);
 489     UINT i;
 490     HRESULT hres;
 491
 492     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 493           lcid, rgDispId);
 494
 495     for(i=0; i < cNames; i++) {
 496         hres = IDispatchEx_GetDispID(_IDispatchEx_(This), rgszNames[i], 0, rgDispId+i);
 497         if(FAILED(hres))
 498             return hres;
 499     }
 500
 501     return S_OK;
 502 }
 503
 504 static HRESULT WINAPI DispatchEx_Invoke(IDispatchEx *iface, DISPID dispIdMember,
 505                             REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 506                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 507 {
 508     DispatchEx *This = DISPATCHEX_THIS(iface);
 509
 510     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 511           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 512
 513     return IDispatchEx_InvokeEx(_IDispatchEx_(This), dispIdMember, lcid, wFlags,
 514             pDispParams, pVarResult, pExcepInfo, NULL);
 515 }
 516
 517 static HRESULT WINAPI DispatchEx_GetDispID(IDispatchEx *iface, BSTR bstrName, DWORD grfdex, DISPID *pid)
 518 {
 519     DispatchEx *This = DISPATCHEX_THIS(iface);
 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     return jsdisp_get_id(This, bstrName, grfdex, pid);
 529 }
 530
 531 static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lcid, WORD wFlags, DISPPARAMS *pdp,
 532         VARIANT *pvarRes, EXCEPINFO *pei, IServiceProvider *pspCaller)
 533 {
 534     DispatchEx *This = DISPATCHEX_THIS(iface);
 535     dispex_prop_t *prop;
 536     jsexcept_t jsexcept;
 537     HRESULT hres;
 538
 539     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 540
 541     if(pvarRes)
 542         V_VT(pvarRes) = VT_EMPTY;
 543
 544     prop = get_prop(This, id);
 545     if(!prop || prop->type == PROP_DELETED) {
 546         TRACE("invalid id\n");
 547         return DISP_E_MEMBERNOTFOUND;
 548     }
 549
 550     memset(&jsexcept, 0, sizeof(jsexcept));
 551
 552     switch(wFlags) {
 553     case DISPATCH_METHOD:
 554     case DISPATCH_CONSTRUCT:
 555         hres = invoke_prop_func(This, This, prop, lcid, wFlags, pdp, pvarRes, &jsexcept, pspCaller);
 556         break;
 557     case DISPATCH_PROPERTYGET:
 558         hres = prop_get(This, prop, lcid, pdp, pvarRes, &jsexcept, pspCaller);
 559         break;
 560     case DISPATCH_PROPERTYPUT:
 561         hres = prop_put(This, prop, lcid, pdp, &jsexcept, pspCaller);
 562         break;
 563     default:
 564         FIXME("Unimplemented flags %x\n", wFlags);
 565         return E_INVALIDARG;
 566     }
 567
 568     if(pei)
 569         *pei = jsexcept.ei;
 570
 571     return hres;
 572 }
 573
 574 static HRESULT delete_prop(dispex_prop_t *prop)
 575 {
 576     heap_free(prop->name);
 577     prop->name = NULL;
 578     prop->type = PROP_DELETED;
 579
 580     return S_OK;
 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     return delete_prop(prop);
 603 }
 604
 605 static HRESULT WINAPI DispatchEx_DeleteMemberByDispID(IDispatchEx *iface, DISPID id)
 606 {
 607     DispatchEx *This = DISPATCHEX_THIS(iface);
 608     dispex_prop_t *prop;
 609
 610     TRACE("(%p)->(%x)\n", This, id);
 611
 612     prop = get_prop(This, id);
 613     if(!prop) {
 614         WARN("invalid id\n");
 615         return DISP_E_MEMBERNOTFOUND;
 616     }
 617
 618     return delete_prop(prop);
 619 }
 620
 621 static HRESULT WINAPI DispatchEx_GetMemberProperties(IDispatchEx *iface, DISPID id, DWORD grfdexFetch, DWORD *pgrfdex)
 622 {
 623     DispatchEx *This = DISPATCHEX_THIS(iface);
 624     FIXME("(%p)->(%x %x %p)\n", This, id, grfdexFetch, pgrfdex);
 625     return E_NOTIMPL;
 626 }
 627
 628 static HRESULT WINAPI DispatchEx_GetMemberName(IDispatchEx *iface, DISPID id, BSTR *pbstrName)
 629 {
 630     DispatchEx *This = DISPATCHEX_THIS(iface);
 631     dispex_prop_t *prop;
 632
 633     TRACE("(%p)->(%x %p)\n", This, id, pbstrName);
 634
 635     prop = get_prop(This, id);
 636     if(!prop || !prop->name || prop->type == PROP_DELETED)
 637         return DISP_E_MEMBERNOTFOUND;
 638
 639     *pbstrName = SysAllocString(prop->name);
 640     if(!*pbstrName)
 641         return E_OUTOFMEMORY;
 642
 643     return S_OK;
 644 }
 645
 646 static HRESULT WINAPI DispatchEx_GetNextDispID(IDispatchEx *iface, DWORD grfdex, DISPID id, DISPID *pid)
 647 {
 648     DispatchEx *This = DISPATCHEX_THIS(iface);
 649     dispex_prop_t *iter;
 650     HRESULT hres;
 651
 652     TRACE("(%p)->(%x %x %p)\n", This, grfdex, id, pid);
 653
 654     if(id == DISPID_STARTENUM) {
 655         hres = fill_protrefs(This);
 656         if(FAILED(hres))
 657             return hres;
 658     }
 659
 660     iter = get_prop(This, id+1);
 661     if(!iter) {
 662         *pid = DISPID_STARTENUM;
 663         return S_FALSE;
 664     }
 665
 666     while(iter < This->props + This->prop_cnt) {
 667         if(iter->name && (get_flags(This, iter) & PROPF_ENUM)) {
 668             *pid = prop_to_id(This, iter);
 669             return S_OK;
 670         }
 671         iter++;
 672     }
 673
 674     *pid = DISPID_STARTENUM;
 675     return S_FALSE;
 676 }
 677
 678 static HRESULT WINAPI DispatchEx_GetNameSpaceParent(IDispatchEx *iface, IUnknown **ppunk)
 679 {
 680     DispatchEx *This = DISPATCHEX_THIS(iface);
 681     FIXME("(%p)->(%p)\n", This, ppunk);
 682     return E_NOTIMPL;
 683 }
 684
 685 #undef DISPATCHEX_THIS
 686
 687 static IDispatchExVtbl DispatchExVtbl = {
 688     DispatchEx_QueryInterface,
 689     DispatchEx_AddRef,
 690     DispatchEx_Release,
 691     DispatchEx_GetTypeInfoCount,
 692     DispatchEx_GetTypeInfo,
 693     DispatchEx_GetIDsOfNames,
 694     DispatchEx_Invoke,
 695     DispatchEx_GetDispID,
 696     DispatchEx_InvokeEx,
 697     DispatchEx_DeleteMemberByName,
 698     DispatchEx_DeleteMemberByDispID,
 699     DispatchEx_GetMemberProperties,
 700     DispatchEx_GetMemberName,
 701     DispatchEx_GetNextDispID,
 702     DispatchEx_GetNameSpaceParent
 703 };
 704
 705 HRESULT init_dispex(DispatchEx *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, DispatchEx *prototype)
 706 {
 707     TRACE("%p (%p)\n", dispex, prototype);
 708
 709     dispex->lpIDispatchExVtbl = &DispatchExVtbl;
 710     dispex->ref = 1;
 711     dispex->builtin_info = builtin_info;
 712
 713     dispex->props = heap_alloc((dispex->buf_size=4) * sizeof(dispex_prop_t));
 714     if(!dispex->props)
 715         return E_OUTOFMEMORY;
 716
 717     dispex->prototype = prototype;
 718     if(prototype)
 719         IDispatchEx_AddRef(_IDispatchEx_(prototype));
 720
 721     dispex->prop_cnt = 1;
 722     dispex->props[0].name = NULL;
 723     dispex->props[0].flags = 0;
 724     if(builtin_info->value_prop.invoke) {
 725         dispex->props[0].type = PROP_BUILTIN;
 726         dispex->props[0].u.p = &builtin_info->value_prop;
 727     }else {
 728         dispex->props[0].type = PROP_DELETED;
 729     }
 730
 731     script_addref(ctx);
 732     dispex->ctx = ctx;
 733
 734     return S_OK;
 735 }
 736
 737 static const builtin_info_t dispex_info = {
 738     JSCLASS_NONE,
 739     {NULL, NULL, 0},
 740     0, NULL,
 741     NULL,
 742     NULL
 743 };
 744
 745 HRESULT create_dispex(script_ctx_t *ctx, const builtin_info_t *builtin_info, DispatchEx *prototype, DispatchEx **dispex)
 746 {
 747     DispatchEx *ret;
 748     HRESULT hres;
 749
 750     ret = heap_alloc_zero(sizeof(DispatchEx));
 751     if(!ret)
 752         return E_OUTOFMEMORY;
 753
 754     hres = init_dispex(ret, ctx, builtin_info ? builtin_info : &dispex_info, prototype);
 755     if(FAILED(hres))
 756         return hres;
 757
 758     *dispex = ret;
 759     return S_OK;
 760 }
 761
 762 HRESULT init_dispex_from_constr(DispatchEx *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, DispatchEx *constr)
 763 {
 764     DispatchEx *prot = NULL;
 765     dispex_prop_t *prop;
 766     HRESULT hres;
 767
 768     static const WCHAR prototypeW[] = {'p','r','o','t','o','t','y','p','e',0};
 769
 770     hres = find_prop_name_prot(constr, prototypeW, FALSE, &prop);
 771     if(SUCCEEDED(hres) && prop) {
 772         jsexcept_t jsexcept;
 773         VARIANT var;
 774
 775         V_VT(&var) = VT_EMPTY;
 776         memset(&jsexcept, 0, sizeof(jsexcept));
 777         hres = prop_get(constr, prop, ctx->lcid, NULL, &var, &jsexcept, NULL/*FIXME*/);
 778         if(FAILED(hres)) {
 779             ERR("Could not get prototype\n");
 780             return hres;
 781         }
 782
 783         if(V_VT(&var) == VT_DISPATCH)
 784             prot = iface_to_jsdisp((IUnknown*)V_DISPATCH(&var));
 785         VariantClear(&var);
 786     }
 787
 788     hres = init_dispex(dispex, ctx, builtin_info, prot);
 789
 790     if(prot)
 791         IDispatchEx_Release(_IDispatchEx_(prot));
 792     return hres;
 793 }
 794
 795 DispatchEx *iface_to_jsdisp(IUnknown *iface)
 796 {
 797     DispatchEx *ret;
 798     HRESULT hres;
 799
 800     hres = IUnknown_QueryInterface(iface, &IID_IDispatchJS, (void**)&ret);
 801     if(FAILED(hres))
 802         return NULL;
 803
 804     return ret;
 805 }
 806
 807 HRESULT jsdisp_get_id(DispatchEx *jsdisp, const WCHAR *name, DWORD flags, DISPID *id)
 808 {
 809     dispex_prop_t *prop;
 810     HRESULT hres;
 811
 812     hres = find_prop_name_prot(jsdisp, name, (flags&fdexNameEnsure) != 0, &prop);
 813     if(FAILED(hres))
 814         return hres;
 815
 816     if(prop) {
 817         *id = prop_to_id(jsdisp, prop);
 818         return S_OK;
 819     }
 820
 821     TRACE("not found %s\n", debugstr_w(name));
 822     return DISP_E_UNKNOWNNAME;
 823 }
 824
 825 HRESULT jsdisp_call_value(DispatchEx *disp, LCID lcid, WORD flags, DISPPARAMS *dp, VARIANT *retv,
 826         jsexcept_t *ei, IServiceProvider *caller)
 827 {
 828     return disp->builtin_info->value_prop.invoke(disp, lcid, flags, dp, retv, ei, caller);
 829 }
 830
 831 HRESULT jsdisp_call(DispatchEx *disp, DISPID id, LCID lcid, WORD flags, DISPPARAMS *dp, VARIANT *retv,
 832         jsexcept_t *ei, IServiceProvider *caller)
 833 {
 834     dispex_prop_t *prop;
 835
 836     memset(ei, 0, sizeof(*ei));
 837     if(retv)
 838         V_VT(retv) = VT_EMPTY;
 839
 840     prop = get_prop(disp, id);
 841     if(!prop)
 842         return DISP_E_MEMBERNOTFOUND;
 843
 844     return invoke_prop_func(disp, disp, prop, lcid, flags, dp, retv, ei, caller);
 845 }
 846
 847 HRESULT disp_call(IDispatch *disp, DISPID id, LCID lcid, WORD flags, DISPPARAMS *dp, VARIANT *retv,
 848         jsexcept_t *ei, IServiceProvider *caller)
 849 {
 850     DispatchEx *jsdisp;
 851     IDispatchEx *dispex;
 852     HRESULT hres;
 853
 854     jsdisp = iface_to_jsdisp((IUnknown*)disp);
 855     if(jsdisp) {
 856         hres = jsdisp_call(jsdisp, id, lcid, flags, dp, retv, ei, caller);
 857         IDispatchEx_Release(_IDispatchEx_(jsdisp));
 858         return hres;
 859     }
 860
 861     memset(ei, 0, sizeof(*ei));
 862
 863     if(retv)
 864         V_VT(retv) = VT_EMPTY;
 865     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 866     if(FAILED(hres)) {
 867         UINT err = 0;
 868
 869         if(flags == DISPATCH_CONSTRUCT) {
 870             WARN("IDispatch cannot be constructor\n");
 871             return DISP_E_MEMBERNOTFOUND;
 872         }
 873
 874         TRACE("using IDispatch\n");
 875         return IDispatch_Invoke(disp, id, &IID_NULL, lcid, flags, dp, retv, &ei->ei, &err);
 876     }
 877
 878     hres = IDispatchEx_InvokeEx(dispex, id, lcid, flags, dp, retv, &ei->ei, caller);
 879     IDispatchEx_Release(dispex);
 880
 881     return hres;
 882 }
 883
 884 HRESULT jsdisp_propput_name(DispatchEx *obj, const WCHAR *name, LCID lcid, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
 885 {
 886     DISPID named_arg = DISPID_PROPERTYPUT;
 887     DISPPARAMS dp = {val, &named_arg, 1, 1};
 888     dispex_prop_t *prop;
 889     HRESULT hres;
 890
 891     hres = find_prop_name_prot(obj, name, TRUE, &prop);
 892     if(FAILED(hres))
 893         return hres;
 894
 895     return prop_put(obj, prop, lcid, &dp, ei, caller);
 896 }
 897
 898 HRESULT jsdisp_propput_idx(DispatchEx *obj, DWORD idx, LCID lcid, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
 899 {
 900     WCHAR buf[12];
 901
 902     static const WCHAR formatW[] = {'%','d',0};
 903
 904     sprintfW(buf, formatW, idx);
 905     return jsdisp_propput_name(obj, buf, lcid, val, ei, caller);
 906 }
 907
 908 HRESULT disp_propput(IDispatch *disp, DISPID id, LCID lcid, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
 909 {
 910     DISPID dispid = DISPID_PROPERTYPUT;
 911     DISPPARAMS dp  = {val, &dispid, 1, 1};
 912     IDispatchEx *dispex;
 913     DispatchEx *jsdisp;
 914     HRESULT hres;
 915
 916     jsdisp = iface_to_jsdisp((IUnknown*)disp);
 917     if(jsdisp) {
 918         dispex_prop_t *prop;
 919
 920         prop = get_prop(jsdisp, id);
 921         if(prop)
 922             hres = prop_put(jsdisp, prop, lcid, &dp, ei, caller);
 923         else
 924             hres = DISP_E_MEMBERNOTFOUND;
 925
 926         IDispatchEx_Release(_IDispatchEx_(jsdisp));
 927         return hres;
 928     }
 929
 930     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 931     if(FAILED(hres)) {
 932         ULONG err = 0;
 933
 934         TRACE("using IDispatch\n");
 935         return IDispatch_Invoke(disp, id, &IID_NULL, DISPATCH_PROPERTYPUT, lcid, &dp, NULL, &ei->ei, &err);
 936     }
 937
 938     hres = IDispatchEx_InvokeEx(dispex, id, lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ei->ei, caller);
 939
 940     IDispatchEx_Release(dispex);
 941     return hres;
 942 }
 943
 944 HRESULT jsdisp_propget_name(DispatchEx *obj, const WCHAR *name, LCID lcid, VARIANT *var,
 945         jsexcept_t *ei, IServiceProvider *caller)
 946 {
 947     DISPPARAMS dp = {NULL, NULL, 0, 0};
 948     dispex_prop_t *prop;
 949     HRESULT hres;
 950
 951     hres = find_prop_name_prot(obj, name, FALSE, &prop);
 952     if(FAILED(hres))
 953         return hres;
 954
 955     V_VT(var) = VT_EMPTY;
 956     if(!prop)
 957         return S_OK;
 958
 959     return prop_get(obj, prop, lcid, &dp, var, ei, caller);
 960 }
 961
 962 HRESULT jsdisp_propget_idx(DispatchEx *obj, DWORD idx, LCID lcid, VARIANT *var, jsexcept_t *ei, IServiceProvider *caller)
 963 {
 964     WCHAR buf[12];
 965
 966     static const WCHAR formatW[] = {'%','d',0};
 967
 968     sprintfW(buf, formatW, idx);
 969     return jsdisp_propget_name(obj, buf, lcid, var, ei, caller);
 970 }
 971
 972 HRESULT jsdisp_propget(DispatchEx *jsdisp, DISPID id, LCID lcid, VARIANT *val, jsexcept_t *ei,
 973         IServiceProvider *caller)
 974 {
 975     DISPPARAMS dp  = {NULL,NULL,0,0};
 976     dispex_prop_t *prop;
 977
 978     prop = get_prop(jsdisp, id);
 979     if(!prop)
 980         return DISP_E_MEMBERNOTFOUND;
 981
 982     V_VT(val) = VT_EMPTY;
 983     return prop_get(jsdisp, prop, lcid, &dp, val, ei, caller);
 984 }
 985
 986 HRESULT disp_propget(IDispatch *disp, DISPID id, LCID lcid, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
 987 {
 988     DISPPARAMS dp  = {NULL,NULL,0,0};
 989     IDispatchEx *dispex;
 990     DispatchEx *jsdisp;
 991     HRESULT hres;
 992
 993     jsdisp = iface_to_jsdisp((IUnknown*)disp);
 994     if(jsdisp) {
 995         hres = jsdisp_propget(jsdisp, id, lcid, val, ei, caller);
 996         IDispatchEx_Release(_IDispatchEx_(jsdisp));
 997         return hres;
 998     }
 999
1000     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1001     if(FAILED(hres)) {
1002         ULONG err = 0;
1003
1004         TRACE("using IDispatch\n");
1005         return IDispatch_Invoke(disp, id, &IID_NULL, lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei, &err);
1006     }
1007
1008     hres = IDispatchEx_InvokeEx(dispex, id, lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei, caller);
1009     IDispatchEx_Release(dispex);
1010
1011     return hres;
1012 }
1013
1014 HRESULT jsdisp_delete_idx(DispatchEx *obj, DWORD idx)
1015 {
1016     static const WCHAR formatW[] = {'%','d',0};
1017     WCHAR buf[12];
1018     dispex_prop_t *prop;
1019     HRESULT hres;
1020
1021     sprintfW(buf, formatW, idx);
1022
1023     hres = find_prop_name(obj, buf, &prop);
1024     if(FAILED(hres) || !prop)
1025         return hres;
1026
1027     return delete_prop(prop);
1028 }