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             FIXME("function objects not supported\n");
 296             return E_NOTIMPL;
 297         }else {
 298             hres = prop->u.p->invoke(This, lcid, DISPATCH_PROPERTYGET, dp, retv, ei, caller);
 299         }
 300         break;
 301     case PROP_PROTREF:
 302         hres = prop_get(This->prototype, This->prototype->props+prop->u.ref, lcid, dp, retv, ei, caller);
 303         break;
 304     case PROP_VARIANT:
 305         hres = VariantCopy(retv, &prop->u.var);
 306         break;
 307     default:
 308         ERR("type %d\n", prop->type);
 309         return E_FAIL;
 310     }
 311
 312     if(FAILED(hres)) {
 313         TRACE("fail %08x\n", hres);
 314         return hres;
 315     }
 316
 317     TRACE("%s ret %s\n", debugstr_w(prop->name), debugstr_variant(retv));
 318     return hres;
 319 }
 320
 321 static HRESULT prop_put(DispatchEx *This, dispex_prop_t *prop, LCID lcid, DISPPARAMS *dp,
 322         jsexcept_t *ei, IServiceProvider *caller)
 323 {
 324     DWORD i;
 325     HRESULT hres;
 326
 327     switch(prop->type) {
 328     case PROP_BUILTIN:
 329         if(!(prop->flags & PROPF_METHOD))
 330             return prop->u.p->invoke(This, lcid, DISPATCH_PROPERTYPUT, dp, NULL, ei, caller);
 331     case PROP_PROTREF:
 332         prop->type = PROP_VARIANT;
 333         prop->flags = PROPF_ENUM;
 334         V_VT(&prop->u.var) = VT_EMPTY;
 335         break;
 336     case PROP_VARIANT:
 337         VariantClear(&prop->u.var);
 338         break;
 339     default:
 340         ERR("type %d\n", prop->type);
 341         return E_FAIL;
 342     }
 343
 344     for(i=0; i < dp->cNamedArgs; i++) {
 345         if(dp->rgdispidNamedArgs[i] == DISPID_PROPERTYPUT)
 346             break;
 347     }
 348
 349     if(i == dp->cNamedArgs) {
 350         TRACE("no value to set\n");
 351         return DISP_E_PARAMNOTOPTIONAL;
 352     }
 353
 354     hres = VariantCopy(&prop->u.var, dp->rgvarg+i);
 355     if(FAILED(hres))
 356         return hres;
 357
 358     if(This->builtin_info->on_put)
 359         This->builtin_info->on_put(This, prop->name);
 360
 361     TRACE("%s = %s\n", debugstr_w(prop->name), debugstr_variant(dp->rgvarg+i));
 362     return S_OK;
 363 }
 364
 365 static HRESULT fill_protrefs(DispatchEx *This)
 366 {
 367     dispex_prop_t *iter, *prop;
 368     HRESULT hres;
 369
 370     if(!This->prototype)
 371         return S_OK;
 372
 373     fill_protrefs(This->prototype);
 374
 375     for(iter = This->prototype->props; iter < This->prototype->props+This->prototype->prop_cnt; iter++) {
 376         hres = find_prop_name(This, iter->name, &prop);
 377         if(FAILED(hres))
 378             return hres;
 379         if(!prop) {
 380             prop = alloc_protref(This, iter->name, iter - This->prototype->props);
 381             if(!prop)
 382                 return E_OUTOFMEMORY;
 383         }
 384     }
 385
 386     return S_OK;
 387 }
 388
 389 #define DISPATCHEX_THIS(iface) DEFINE_THIS(DispatchEx, IDispatchEx, iface)
 390
 391 static HRESULT WINAPI DispatchEx_QueryInterface(IDispatchEx *iface, REFIID riid, void **ppv)
 392 {
 393     DispatchEx *This = DISPATCHEX_THIS(iface);
 394
 395     if(IsEqualGUID(&IID_IUnknown, riid)) {
 396         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 397         *ppv = _IDispatchEx_(This);
 398     }else if(IsEqualGUID(&IID_IDispatch, riid)) {
 399         TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
 400         *ppv = _IDispatchEx_(This);
 401     }else if(IsEqualGUID(&IID_IDispatchEx, riid)) {
 402         TRACE("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
 403         *ppv = _IDispatchEx_(This);
 404     }else if(IsEqualGUID(&IID_IDispatchJS, riid)) {
 405         TRACE("(%p)->(IID_IDispatchJS %p)\n", This, ppv);
 406         IUnknown_AddRef(_IDispatchEx_(This));
 407         *ppv = This;
 408         return S_OK;
 409     }else {
 410         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
 411         *ppv = NULL;
 412         return E_NOINTERFACE;
 413     }
 414
 415     IUnknown_AddRef((IUnknown*)*ppv);
 416     return S_OK;
 417 }
 418
 419 static ULONG WINAPI DispatchEx_AddRef(IDispatchEx *iface)
 420 {
 421     DispatchEx *This = DISPATCHEX_THIS(iface);
 422     LONG ref = InterlockedIncrement(&This->ref);
 423
 424     TRACE("(%p) ref=%d\n", This, ref);
 425
 426     return ref;
 427 }
 428
 429 static ULONG WINAPI DispatchEx_Release(IDispatchEx *iface)
 430 {
 431     DispatchEx *This = DISPATCHEX_THIS(iface);
 432     LONG ref = InterlockedDecrement(&This->ref);
 433
 434     TRACE("(%p) ref=%d\n", This, ref);
 435
 436     if(!ref) {
 437         dispex_prop_t *prop;
 438
 439         for(prop = This->props; prop < This->props+This->prop_cnt; prop++) {
 440             if(prop->type == PROP_VARIANT)
 441                 VariantClear(&prop->u.var);
 442             heap_free(prop->name);
 443         }
 444         heap_free(This->props);
 445         script_release(This->ctx);
 446
 447         if(This->builtin_info->destructor)
 448             This->builtin_info->destructor(This);
 449         else
 450             heap_free(This);
 451     }
 452
 453     return ref;
 454 }
 455
 456 static HRESULT WINAPI DispatchEx_GetTypeInfoCount(IDispatchEx *iface, UINT *pctinfo)
 457 {
 458     DispatchEx *This = DISPATCHEX_THIS(iface);
 459
 460     TRACE("(%p)->(%p)\n", This, pctinfo);
 461
 462     *pctinfo = 1;
 463     return S_OK;
 464 }
 465
 466 static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo,
 467                                               LCID lcid, ITypeInfo **ppTInfo)
 468 {
 469     DispatchEx *This = DISPATCHEX_THIS(iface);
 470     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 471     return E_NOTIMPL;
 472 }
 473
 474 static HRESULT WINAPI DispatchEx_GetIDsOfNames(IDispatchEx *iface, REFIID riid,
 475                                                 LPOLESTR *rgszNames, UINT cNames,
 476                                                 LCID lcid, DISPID *rgDispId)
 477 {
 478     DispatchEx *This = DISPATCHEX_THIS(iface);
 479     UINT i;
 480     HRESULT hres;
 481
 482     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 483           lcid, rgDispId);
 484
 485     for(i=0; i < cNames; i++) {
 486         hres = IDispatchEx_GetDispID(_IDispatchEx_(This), rgszNames[i], 0, rgDispId+i);
 487         if(FAILED(hres))
 488             return hres;
 489     }
 490
 491     return S_OK;
 492 }
 493
 494 static HRESULT WINAPI DispatchEx_Invoke(IDispatchEx *iface, DISPID dispIdMember,
 495                             REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 496                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 497 {
 498     DispatchEx *This = DISPATCHEX_THIS(iface);
 499
 500     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 501           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 502
 503     return IDispatchEx_InvokeEx(_IDispatchEx_(This), dispIdMember, lcid, wFlags,
 504             pDispParams, pVarResult, pExcepInfo, NULL);
 505 }
 506
 507 static HRESULT WINAPI DispatchEx_GetDispID(IDispatchEx *iface, BSTR bstrName, DWORD grfdex, DISPID *pid)
 508 {
 509     DispatchEx *This = DISPATCHEX_THIS(iface);
 510     dispex_prop_t *prop;
 511     HRESULT hres;
 512
 513     TRACE("(%p)->(%s %x %p)\n", This, debugstr_w(bstrName), grfdex, pid);
 514
 515     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit)) {
 516         FIXME("Unsupported grfdex %x\n", grfdex);
 517         return E_NOTIMPL;
 518     }
 519
 520     hres = find_prop_name_prot(This, bstrName, (grfdex&fdexNameEnsure) != 0, &prop);
 521     if(FAILED(hres))
 522         return hres;
 523     if(prop) {
 524         *pid = prop_to_id(This, prop);
 525         return S_OK;
 526     }
 527
 528     TRACE("not found %s\n", debugstr_w(bstrName));
 529     return DISP_E_UNKNOWNNAME;
 530 }
 531
 532 static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lcid, WORD wFlags, DISPPARAMS *pdp,
 533         VARIANT *pvarRes, EXCEPINFO *pei, IServiceProvider *pspCaller)
 534 {
 535     DispatchEx *This = DISPATCHEX_THIS(iface);
 536     dispex_prop_t *prop;
 537     jsexcept_t jsexcept;
 538     HRESULT hres;
 539
 540     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 541
 542     if(pvarRes)
 543         V_VT(pvarRes) = VT_EMPTY;
 544
 545     prop = get_prop(This, id);
 546     if(!prop || prop->type == PROP_DELETED) {
 547         TRACE("invalid id\n");
 548         return DISP_E_MEMBERNOTFOUND;
 549     }
 550
 551     memset(&jsexcept, 0, sizeof(jsexcept));
 552
 553     switch(wFlags) {
 554     case DISPATCH_METHOD:
 555     case DISPATCH_CONSTRUCT:
 556         hres = invoke_prop_func(This, This, prop, lcid, wFlags, pdp, pvarRes, &jsexcept, pspCaller);
 557         break;
 558     case DISPATCH_PROPERTYGET:
 559         hres = prop_get(This, prop, lcid, pdp, pvarRes, &jsexcept, pspCaller);
 560         break;
 561     case DISPATCH_PROPERTYPUT:
 562         hres = prop_put(This, prop, lcid, pdp, &jsexcept, pspCaller);
 563         break;
 564     default:
 565         FIXME("Unimplemented flags %x\n", wFlags);
 566         return E_INVALIDARG;
 567     }
 568
 569     if(pei)
 570         *pei = jsexcept.ei;
 571
 572     return hres;
 573 }
 574
 575 static HRESULT WINAPI DispatchEx_DeleteMemberByName(IDispatchEx *iface, BSTR bstrName, DWORD grfdex)
 576 {
 577     DispatchEx *This = DISPATCHEX_THIS(iface);
 578     dispex_prop_t *prop;
 579     HRESULT hres;
 580
 581     TRACE("(%p)->(%s %x)\n", This, debugstr_w(bstrName), grfdex);
 582
 583     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit))
 584         FIXME("Unsupported grfdex %x\n", grfdex);
 585
 586     hres = find_prop_name(This, bstrName, &prop);
 587     if(FAILED(hres))
 588         return hres;
 589     if(!prop) {
 590         TRACE("not found\n");
 591         return S_OK;
 592     }
 593
 594     heap_free(prop->name);
 595     prop->name = NULL;
 596     prop->type = PROP_DELETED;
 597     return S_OK;
 598 }
 599
 600 static HRESULT WINAPI DispatchEx_DeleteMemberByDispID(IDispatchEx *iface, DISPID id)
 601 {
 602     DispatchEx *This = DISPATCHEX_THIS(iface);
 603     FIXME("(%p)->(%x)\n", This, id);
 604     return E_NOTIMPL;
 605 }
 606
 607 static HRESULT WINAPI DispatchEx_GetMemberProperties(IDispatchEx *iface, DISPID id, DWORD grfdexFetch, DWORD *pgrfdex)
 608 {
 609     DispatchEx *This = DISPATCHEX_THIS(iface);
 610     FIXME("(%p)->(%x %x %p)\n", This, id, grfdexFetch, pgrfdex);
 611     return E_NOTIMPL;
 612 }
 613
 614 static HRESULT WINAPI DispatchEx_GetMemberName(IDispatchEx *iface, DISPID id, BSTR *pbstrName)
 615 {
 616     DispatchEx *This = DISPATCHEX_THIS(iface);
 617     dispex_prop_t *prop;
 618
 619     TRACE("(%p)->(%x %p)\n", This, id, pbstrName);
 620
 621     prop = get_prop(This, id);
 622     if(!prop || !prop->name || prop->type == PROP_DELETED)
 623         return DISP_E_MEMBERNOTFOUND;
 624
 625     *pbstrName = SysAllocString(prop->name);
 626     if(!*pbstrName)
 627         return E_OUTOFMEMORY;
 628
 629     return S_OK;
 630 }
 631
 632 static HRESULT WINAPI DispatchEx_GetNextDispID(IDispatchEx *iface, DWORD grfdex, DISPID id, DISPID *pid)
 633 {
 634     DispatchEx *This = DISPATCHEX_THIS(iface);
 635     dispex_prop_t *iter;
 636     HRESULT hres;
 637
 638     TRACE("(%p)->(%x %x %p)\n", This, grfdex, id, pid);
 639
 640     if(id == DISPID_STARTENUM) {
 641         hres = fill_protrefs(This);
 642         if(FAILED(hres))
 643             return hres;
 644     }
 645
 646     iter = get_prop(This, id+1);
 647     if(!iter) {
 648         *pid = DISPID_STARTENUM;
 649         return S_FALSE;
 650     }
 651
 652     while(iter < This->props + This->prop_cnt) {
 653         if(iter->name && (get_flags(This, iter) & PROPF_ENUM)) {
 654             *pid = prop_to_id(This, iter);
 655             return S_OK;
 656         }
 657         iter++;
 658     }
 659
 660     *pid = DISPID_STARTENUM;
 661     return S_FALSE;
 662 }
 663
 664 static HRESULT WINAPI DispatchEx_GetNameSpaceParent(IDispatchEx *iface, IUnknown **ppunk)
 665 {
 666     DispatchEx *This = DISPATCHEX_THIS(iface);
 667     FIXME("(%p)->(%p)\n", This, ppunk);
 668     return E_NOTIMPL;
 669 }
 670
 671 #undef DISPATCHEX_THIS
 672
 673 static IDispatchExVtbl DispatchExVtbl = {
 674     DispatchEx_QueryInterface,
 675     DispatchEx_AddRef,
 676     DispatchEx_Release,
 677     DispatchEx_GetTypeInfoCount,
 678     DispatchEx_GetTypeInfo,
 679     DispatchEx_GetIDsOfNames,
 680     DispatchEx_Invoke,
 681     DispatchEx_GetDispID,
 682     DispatchEx_InvokeEx,
 683     DispatchEx_DeleteMemberByName,
 684     DispatchEx_DeleteMemberByDispID,
 685     DispatchEx_GetMemberProperties,
 686     DispatchEx_GetMemberName,
 687     DispatchEx_GetNextDispID,
 688     DispatchEx_GetNameSpaceParent
 689 };
 690
 691 static HRESULT jsdisp_set_prot_prop(DispatchEx *dispex, DispatchEx *prototype)
 692 {
 693     VARIANT *var;
 694
 695     if(!dispex->props[1].name)
 696         return E_OUTOFMEMORY;
 697
 698     dispex->props[1].type = PROP_VARIANT;
 699     dispex->props[1].flags = 0;
 700
 701     var = &dispex->props[1].u.var;
 702     V_VT(var) = VT_DISPATCH;
 703     V_DISPATCH(var) = (IDispatch*)_IDispatchEx_(prototype);
 704
 705     return S_OK;
 706 }
 707
 708 static HRESULT init_dispex(DispatchEx *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, DispatchEx *prototype)
 709 {
 710     static const WCHAR prototypeW[] = {'p','r','o','t','o','t','y','p','e',0};
 711
 712     TRACE("%p (%p)\n", dispex, prototype);
 713
 714     dispex->lpIDispatchExVtbl = &DispatchExVtbl;
 715     dispex->ref = 1;
 716     dispex->builtin_info = builtin_info;
 717
 718     dispex->props = heap_alloc((dispex->buf_size=4) * sizeof(dispex_prop_t));
 719     if(!dispex->props)
 720         return E_OUTOFMEMORY;
 721
 722     dispex->prototype = prototype;
 723     if(prototype)
 724         IDispatchEx_AddRef(_IDispatchEx_(prototype));
 725
 726     dispex->prop_cnt = 2;
 727     dispex->props[0].name = NULL;
 728     dispex->props[0].flags = 0;
 729     if(builtin_info->value_prop.invoke) {
 730         dispex->props[0].type = PROP_BUILTIN;
 731         dispex->props[0].u.p = &builtin_info->value_prop;
 732     }else {
 733         dispex->props[0].type = PROP_DELETED;
 734     }
 735
 736     dispex->props[1].type = PROP_DELETED;
 737     dispex->props[1].name = SysAllocString(prototypeW);
 738     dispex->props[1].flags = 0;
 739
 740     if(prototype) {
 741         HRESULT hres;
 742
 743         hres = jsdisp_set_prot_prop(dispex, prototype);
 744         if(FAILED(hres)) {
 745             IDispatchEx_Release(_IDispatchEx_(dispex));
 746             return hres;
 747         }
 748     }
 749
 750     script_addref(ctx);
 751     dispex->ctx = ctx;
 752
 753     return S_OK;
 754 }
 755
 756 static const builtin_info_t dispex_info = {
 757     JSCLASS_NONE,
 758     {NULL, NULL, 0},
 759     0, NULL,
 760     NULL,
 761     NULL
 762 };
 763
 764 HRESULT create_dispex(script_ctx_t *ctx, const builtin_info_t *builtin_info, DispatchEx *prototype, DispatchEx **dispex)
 765 {
 766     DispatchEx *ret;
 767     HRESULT hres;
 768
 769     ret = heap_alloc_zero(sizeof(DispatchEx));
 770     if(!ret)
 771         return E_OUTOFMEMORY;
 772
 773     hres = init_dispex(ret, ctx, builtin_info ? builtin_info : &dispex_info, prototype);
 774     if(FAILED(hres))
 775         return hres;
 776
 777     *dispex = ret;
 778     return S_OK;
 779 }
 780
 781 DispatchEx *iface_to_jsdisp(IUnknown *iface)
 782 {
 783     DispatchEx *ret;
 784     HRESULT hres;
 785
 786     hres = IUnknown_QueryInterface(iface, &IID_IDispatchJS, (void**)&ret);
 787     if(FAILED(hres))
 788         return NULL;
 789
 790     return ret;
 791 }
 792
 793 HRESULT jsdisp_call(DispatchEx *disp, DISPID id, LCID lcid, WORD flags, DISPPARAMS *dp, VARIANT *retv,
 794         jsexcept_t *ei, IServiceProvider *caller)
 795 {
 796     dispex_prop_t *prop;
 797
 798     memset(ei, 0, sizeof(*ei));
 799     if(retv)
 800         V_VT(retv) = VT_EMPTY;
 801
 802     prop = get_prop(disp, id);
 803     if(!prop)
 804         return DISP_E_MEMBERNOTFOUND;
 805
 806     return invoke_prop_func(disp, disp, prop, lcid, flags, dp, retv, ei, caller);
 807 }
 808
 809 HRESULT disp_call(IDispatch *disp, DISPID id, LCID lcid, WORD flags, DISPPARAMS *dp, VARIANT *retv,
 810         jsexcept_t *ei, IServiceProvider *caller)
 811 {
 812     DispatchEx *jsdisp;
 813     IDispatchEx *dispex;
 814     HRESULT hres;
 815
 816     jsdisp = iface_to_jsdisp((IUnknown*)disp);
 817     if(jsdisp) {
 818         hres = jsdisp_call(jsdisp, id, lcid, flags, dp, retv, ei, caller);
 819         IDispatchEx_Release(_IDispatchEx_(jsdisp));
 820         return hres;
 821     }
 822
 823     memset(ei, 0, sizeof(*ei));
 824
 825     if(retv)
 826         V_VT(retv) = VT_EMPTY;
 827     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 828     if(FAILED(hres)) {
 829         UINT err = 0;
 830
 831         TRACE("using IDispatch\n");
 832         return IDispatch_Invoke(disp, id, &IID_NULL, lcid, flags, dp, retv, &ei->ei, &err);
 833     }
 834
 835     hres = IDispatchEx_InvokeEx(dispex, id, lcid, flags, dp, retv, &ei->ei, caller);
 836     IDispatchEx_Release(dispex);
 837
 838     return hres;
 839 }
 840
 841 HRESULT disp_propput(IDispatch *disp, DISPID id, LCID lcid, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
 842 {
 843     DISPID dispid = DISPID_PROPERTYPUT;
 844     DISPPARAMS dp  = {val, &dispid, 1, 1};
 845     IDispatchEx *dispex;
 846     DispatchEx *jsdisp;
 847     HRESULT hres;
 848
 849     jsdisp = iface_to_jsdisp((IUnknown*)disp);
 850     if(jsdisp) {
 851         dispex_prop_t *prop;
 852
 853         prop = get_prop(jsdisp, id);
 854         if(prop)
 855             hres = prop_put(jsdisp, prop, lcid, &dp, ei, caller);
 856         else
 857             hres = DISP_E_MEMBERNOTFOUND;
 858
 859         IDispatchEx_Release(_IDispatchEx_(jsdisp));
 860         return hres;
 861     }
 862
 863     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 864     if(FAILED(hres)) {
 865         ULONG err = 0;
 866
 867         TRACE("using IDispatch\n");
 868         return IDispatch_Invoke(disp, id, &IID_NULL, DISPATCH_PROPERTYPUT, lcid, &dp, NULL, &ei->ei, &err);
 869     }
 870
 871     hres = IDispatchEx_InvokeEx(dispex, id, lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ei->ei, caller);
 872
 873     IDispatchEx_Release(dispex);
 874     return hres;
 875 }
 876
 877 HRESULT disp_propget(IDispatch *disp, DISPID id, LCID lcid, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
 878 {
 879     DISPPARAMS dp  = {NULL,NULL,0,0};
 880     IDispatchEx *dispex;
 881     DispatchEx *jsdisp;
 882     HRESULT hres;
 883
 884     jsdisp = iface_to_jsdisp((IUnknown*)disp);
 885     if(jsdisp) {
 886         dispex_prop_t *prop;
 887
 888         prop = get_prop(jsdisp, id);
 889         if(prop)
 890             hres = prop_get(jsdisp, prop, lcid, &dp, val, ei, caller);
 891         else
 892             hres = DISP_E_MEMBERNOTFOUND;
 893
 894         IDispatchEx_Release(_IDispatchEx_(jsdisp));
 895         return hres;
 896     }
 897
 898     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 899     if(FAILED(hres)) {
 900         ULONG err = 0;
 901
 902         TRACE("uding IDispatch\n");
 903         return IDispatchEx_Invoke(dispex, id, &IID_NULL, lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei, &err);
 904     }
 905
 906     hres = IDispatchEx_InvokeEx(dispex, id, lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei, caller);
 907     IDispatchEx_Release(dispex);
 908
 909     return hres;
 910 }