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 jsdisp_t 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 #define FDEX_VERSION_MASK 0xf0000000
  34 #define GOLDEN_RATIO 0x9E3779B9U
  35
  36 typedef enum {
  37     PROP_VARIANT,
  38     PROP_BUILTIN,
  39     PROP_PROTREF,
  40     PROP_DELETED
  41 } prop_type_t;
  42
  43 struct _dispex_prop_t {
  44     WCHAR *name;
  45     unsigned hash;
  46     prop_type_t type;
  47     DWORD flags;
  48
  49     union {
  50         VARIANT var;
  51         const builtin_prop_t *p;
  52         DWORD ref;
  53     } u;
  54
  55     int bucket_head;
  56     int bucket_next;
  57 };
  58
  59 static inline DISPID prop_to_id(jsdisp_t *This, dispex_prop_t *prop)
  60 {
  61     return prop - This->props;
  62 }
  63
  64 static inline dispex_prop_t *get_prop(jsdisp_t *This, DISPID id)
  65 {
  66     if(id < 0 || id >= This->prop_cnt || This->props[id].type == PROP_DELETED)
  67         return NULL;
  68
  69     return This->props+id;
  70 }
  71
  72 static DWORD get_flags(jsdisp_t *This, dispex_prop_t *prop)
  73 {
  74     if(prop->type == PROP_PROTREF) {
  75         dispex_prop_t *parent = get_prop(This->prototype, prop->u.ref);
  76         if(!parent) {
  77             prop->type = PROP_DELETED;
  78             return 0;
  79         }
  80
  81         return get_flags(This->prototype, parent);
  82     }
  83
  84     return prop->flags;
  85 }
  86
  87 static const builtin_prop_t *find_builtin_prop(jsdisp_t *This, const WCHAR *name)
  88 {
  89     int min = 0, max, i, r;
  90
  91     max = This->builtin_info->props_cnt-1;
  92     while(min <= max) {
  93         i = (min+max)/2;
  94
  95         r = strcmpW(name, This->builtin_info->props[i].name);
  96         if(!r)
  97             return This->builtin_info->props + i;
  98
  99         if(r < 0)
 100             max = i-1;
 101         else
 102             min = i+1;
 103     }
 104
 105     return NULL;
 106 }
 107
 108 static inline unsigned string_hash(const WCHAR *name)
 109 {
 110     unsigned h = 0;
 111     for(; *name; name++)
 112         h = (h>>(sizeof(unsigned)*8-4)) ^ (h<<4) ^ tolowerW(*name);
 113     return h;
 114 }
 115
 116 static inline unsigned get_props_idx(jsdisp_t *This, unsigned hash)
 117 {
 118     return (hash*GOLDEN_RATIO) & (This->buf_size-1);
 119 }
 120
 121 static inline HRESULT resize_props(jsdisp_t *This)
 122 {
 123     dispex_prop_t *props;
 124     int i, bucket;
 125
 126     if(This->buf_size != This->prop_cnt)
 127         return S_FALSE;
 128
 129     props = heap_realloc(This->props, sizeof(dispex_prop_t)*This->buf_size*2);
 130     if(!props)
 131         return E_OUTOFMEMORY;
 132     This->buf_size *= 2;
 133     This->props = props;
 134
 135     for(i=0; i<This->buf_size; i++) {
 136         This->props[i].bucket_head = 0;
 137         This->props[i].bucket_next = 0;
 138     }
 139
 140     for(i=1; i<This->prop_cnt; i++) {
 141         props = This->props+i;
 142
 143         bucket = get_props_idx(This, props->hash);
 144         props->bucket_next = This->props[bucket].bucket_head;
 145         This->props[bucket].bucket_head = i;
 146     }
 147
 148     return S_OK;
 149 }
 150
 151 static inline dispex_prop_t* alloc_prop(jsdisp_t *This, const WCHAR *name, prop_type_t type, DWORD flags)
 152 {
 153     dispex_prop_t *prop;
 154     unsigned bucket;
 155
 156     if(FAILED(resize_props(This)))
 157         return NULL;
 158
 159     prop = &This->props[This->prop_cnt];
 160     prop->name = heap_strdupW(name);
 161     if(!prop->name)
 162         return NULL;
 163     prop->type = type;
 164     prop->flags = flags;
 165     prop->hash = string_hash(name);
 166
 167     bucket = get_props_idx(This, prop->hash);
 168     prop->bucket_next = This->props[bucket].bucket_head;
 169     This->props[bucket].bucket_head = This->prop_cnt++;
 170     return prop;
 171 }
 172
 173 static dispex_prop_t *alloc_protref(jsdisp_t *This, const WCHAR *name, DWORD ref)
 174 {
 175     dispex_prop_t *ret;
 176
 177     ret = alloc_prop(This, name, PROP_PROTREF, 0);
 178     if(!ret)
 179         return NULL;
 180
 181     ret->u.ref = ref;
 182     return ret;
 183 }
 184
 185 static HRESULT find_prop_name(jsdisp_t *This, unsigned hash, const WCHAR *name, dispex_prop_t **ret)
 186 {
 187     const builtin_prop_t *builtin;
 188     unsigned bucket, pos, prev = 0;
 189     dispex_prop_t *prop;
 190
 191     bucket = get_props_idx(This, hash);
 192     pos = This->props[bucket].bucket_head;
 193     while(pos != 0) {
 194         if(!strcmpW(name, This->props[pos].name)) {
 195             if(prev != 0) {
 196                 This->props[prev].bucket_next = This->props[pos].bucket_next;
 197                 This->props[pos].bucket_next = This->props[bucket].bucket_head;
 198                 This->props[bucket].bucket_head = pos;
 199             }
 200
 201             *ret = &This->props[pos];
 202             return S_OK;
 203         }
 204
 205         prev = pos;
 206         pos = This->props[pos].bucket_next;
 207     }
 208
 209     builtin = find_builtin_prop(This, name);
 210     if(builtin) {
 211         prop = alloc_prop(This, name, PROP_BUILTIN, builtin->flags);
 212         if(!prop)
 213             return E_OUTOFMEMORY;
 214
 215         prop->u.p = builtin;
 216         *ret = prop;
 217         return S_OK;
 218     }
 219
 220     *ret = NULL;
 221     return S_OK;
 222 }
 223
 224 static HRESULT find_prop_name_prot(jsdisp_t *This, unsigned hash, const WCHAR *name, dispex_prop_t **ret)
 225 {
 226     dispex_prop_t *prop, *del=NULL;
 227     HRESULT hres;
 228
 229     hres = find_prop_name(This, hash, name, &prop);
 230     if(FAILED(hres))
 231         return hres;
 232     if(prop && prop->type==PROP_DELETED) {
 233         del = prop;
 234     } else if(prop) {
 235         *ret = prop;
 236         return S_OK;
 237     }
 238
 239     if(This->prototype) {
 240         hres = find_prop_name_prot(This->prototype, hash, name, &prop);
 241         if(FAILED(hres))
 242             return hres;
 243         if(prop) {
 244             if(del) {
 245                 del->type = PROP_PROTREF;
 246                 del->flags = 0;
 247                 del->u.ref = prop - This->prototype->props;
 248                 prop = del;
 249             }else {
 250                 prop = alloc_protref(This, prop->name, prop - This->prototype->props);
 251                 if(!prop)
 252                     return E_OUTOFMEMORY;
 253             }
 254
 255             *ret = prop;
 256             return S_OK;
 257         }
 258     }
 259
 260     *ret = del;
 261     return S_OK;
 262 }
 263
 264 static HRESULT ensure_prop_name(jsdisp_t *This, const WCHAR *name, BOOL search_prot, DWORD create_flags, dispex_prop_t **ret)
 265 {
 266     dispex_prop_t *prop;
 267     HRESULT hres;
 268
 269     if(search_prot)
 270         hres = find_prop_name_prot(This, string_hash(name), name, &prop);
 271     else
 272         hres = find_prop_name(This, string_hash(name), name, &prop);
 273     if(SUCCEEDED(hres) && (!prop || prop->type==PROP_DELETED)) {
 274         TRACE("creating prop %s\n", debugstr_w(name));
 275
 276         if(prop) {
 277             prop->type = PROP_VARIANT;
 278             prop->flags = create_flags;
 279         }else {
 280             prop = alloc_prop(This, name, PROP_VARIANT, create_flags);
 281             if(!prop)
 282                 return E_OUTOFMEMORY;
 283         }
 284
 285         VariantInit(&prop->u.var);
 286     }
 287
 288     *ret = prop;
 289     return hres;
 290 }
 291
 292 static HRESULT set_this(DISPPARAMS *dp, DISPPARAMS *olddp, IDispatch *jsthis)
 293 {
 294     VARIANTARG *oldargs;
 295     int i;
 296
 297     static DISPID this_id = DISPID_THIS;
 298
 299     *dp = *olddp;
 300
 301     for(i = 0; i < dp->cNamedArgs; i++) {
 302         if(dp->rgdispidNamedArgs[i] == DISPID_THIS)
 303             return S_OK;
 304     }
 305
 306     oldargs = dp->rgvarg;
 307     dp->rgvarg = heap_alloc((dp->cArgs+1) * sizeof(VARIANTARG));
 308     if(!dp->rgvarg)
 309         return E_OUTOFMEMORY;
 310     memcpy(dp->rgvarg+1, oldargs, dp->cArgs*sizeof(VARIANTARG));
 311     V_VT(dp->rgvarg) = VT_DISPATCH;
 312     V_DISPATCH(dp->rgvarg) = jsthis;
 313     dp->cArgs++;
 314
 315     if(dp->cNamedArgs) {
 316         DISPID *old = dp->rgdispidNamedArgs;
 317         dp->rgdispidNamedArgs = heap_alloc((dp->cNamedArgs+1)*sizeof(DISPID));
 318         if(!dp->rgdispidNamedArgs) {
 319             heap_free(dp->rgvarg);
 320             return E_OUTOFMEMORY;
 321         }
 322
 323         memcpy(dp->rgdispidNamedArgs+1, old, dp->cNamedArgs*sizeof(DISPID));
 324         dp->rgdispidNamedArgs[0] = DISPID_THIS;
 325         dp->cNamedArgs++;
 326     }else {
 327         dp->rgdispidNamedArgs = &this_id;
 328         dp->cNamedArgs = 1;
 329     }
 330
 331     return S_OK;
 332 }
 333
 334 static HRESULT invoke_prop_func(jsdisp_t *This, jsdisp_t *jsthis, dispex_prop_t *prop, WORD flags,
 335         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 336 {
 337     HRESULT hres;
 338
 339     switch(prop->type) {
 340     case PROP_BUILTIN: {
 341         vdisp_t vthis;
 342
 343         if(flags == DISPATCH_CONSTRUCT && (prop->flags & PROPF_METHOD)) {
 344             WARN("%s is not a constructor\n", debugstr_w(prop->name));
 345             return E_INVALIDARG;
 346         }
 347
 348         set_jsdisp(&vthis, jsthis);
 349         hres = prop->u.p->invoke(This->ctx, &vthis, flags, dp, retv, ei, caller);
 350         vdisp_release(&vthis);
 351         return hres;
 352     }
 353     case PROP_PROTREF:
 354         return invoke_prop_func(This->prototype, jsthis, This->prototype->props+prop->u.ref, flags, dp, retv, ei, caller);
 355     case PROP_VARIANT: {
 356         DISPPARAMS new_dp;
 357
 358         if(V_VT(&prop->u.var) != VT_DISPATCH) {
 359             FIXME("invoke vt %d\n", V_VT(&prop->u.var));
 360             return E_FAIL;
 361         }
 362
 363         TRACE("call %s %p\n", debugstr_w(prop->name), V_DISPATCH(&prop->u.var));
 364
 365         hres = set_this(&new_dp, dp, to_disp(jsthis));
 366         if(FAILED(hres))
 367             return hres;
 368
 369         hres = disp_call(This->ctx, V_DISPATCH(&prop->u.var), DISPID_VALUE, flags, &new_dp, retv, ei, caller);
 370
 371         if(new_dp.rgvarg != dp->rgvarg) {
 372             heap_free(new_dp.rgvarg);
 373             if(new_dp.cNamedArgs > 1)
 374                 heap_free(new_dp.rgdispidNamedArgs);
 375         }
 376
 377         return hres;
 378     }
 379     default:
 380         ERR("type %d\n", prop->type);
 381     }
 382
 383     return E_FAIL;
 384 }
 385
 386 static HRESULT prop_get(jsdisp_t *This, dispex_prop_t *prop, DISPPARAMS *dp,
 387         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 388 {
 389     HRESULT hres;
 390
 391     switch(prop->type) {
 392     case PROP_BUILTIN:
 393         if(prop->u.p->flags & PROPF_METHOD) {
 394             jsdisp_t *obj;
 395             hres = create_builtin_function(This->ctx, prop->u.p->invoke, prop->u.p->name, NULL,
 396                     prop->u.p->flags, NULL, &obj);
 397             if(FAILED(hres))
 398                 break;
 399
 400             prop->type = PROP_VARIANT;
 401             var_set_jsdisp(&prop->u.var, obj);
 402             hres = VariantCopy(retv, &prop->u.var);
 403         }else {
 404             vdisp_t vthis;
 405
 406             set_jsdisp(&vthis, This);
 407             hres = prop->u.p->invoke(This->ctx, &vthis, DISPATCH_PROPERTYGET, dp, retv, ei, caller);
 408             vdisp_release(&vthis);
 409         }
 410         break;
 411     case PROP_PROTREF:
 412         hres = prop_get(This->prototype, This->prototype->props+prop->u.ref, dp, retv, ei, caller);
 413         break;
 414     case PROP_VARIANT:
 415         hres = VariantCopy(retv, &prop->u.var);
 416         break;
 417     default:
 418         ERR("type %d\n", prop->type);
 419         return E_FAIL;
 420     }
 421
 422     if(FAILED(hres)) {
 423         TRACE("fail %08x\n", hres);
 424         return hres;
 425     }
 426
 427     TRACE("%s ret %s\n", debugstr_w(prop->name), debugstr_variant(retv));
 428     return hres;
 429 }
 430
 431 static HRESULT prop_put(jsdisp_t *This, dispex_prop_t *prop, VARIANT *val,
 432         jsexcept_t *ei, IServiceProvider *caller)
 433 {
 434     HRESULT hres;
 435
 436     if(prop->flags & PROPF_CONST)
 437         return S_OK;
 438
 439     switch(prop->type) {
 440     case PROP_BUILTIN:
 441         if(!(prop->flags & PROPF_METHOD)) {
 442             DISPPARAMS dp = {val, NULL, 1, 0};
 443             vdisp_t vthis;
 444
 445             set_jsdisp(&vthis, This);
 446             hres = prop->u.p->invoke(This->ctx, &vthis, DISPATCH_PROPERTYPUT, &dp, NULL, ei, caller);
 447             vdisp_release(&vthis);
 448             return hres;
 449         }
 450     case PROP_PROTREF:
 451         prop->type = PROP_VARIANT;
 452         prop->flags = PROPF_ENUM;
 453         V_VT(&prop->u.var) = VT_EMPTY;
 454         break;
 455     case PROP_VARIANT:
 456         VariantClear(&prop->u.var);
 457         break;
 458     default:
 459         ERR("type %d\n", prop->type);
 460         return E_FAIL;
 461     }
 462
 463     hres = VariantCopy(&prop->u.var, val);
 464     if(FAILED(hres))
 465         return hres;
 466
 467     if(This->builtin_info->on_put)
 468         This->builtin_info->on_put(This, prop->name);
 469
 470     TRACE("%s = %s\n", debugstr_w(prop->name), debugstr_variant(val));
 471     return S_OK;
 472 }
 473
 474 static HRESULT fill_protrefs(jsdisp_t *This)
 475 {
 476     dispex_prop_t *iter, *prop;
 477     HRESULT hres;
 478
 479     if(!This->prototype)
 480         return S_OK;
 481
 482     fill_protrefs(This->prototype);
 483
 484     for(iter = This->prototype->props; iter < This->prototype->props+This->prototype->prop_cnt; iter++) {
 485         if(!iter->name)
 486             continue;
 487         hres = find_prop_name(This, iter->hash, iter->name, &prop);
 488         if(FAILED(hres))
 489             return hres;
 490         if(!prop || prop->type==PROP_DELETED) {
 491             if(prop) {
 492                 prop->type = PROP_PROTREF;
 493                 prop->flags = 0;
 494                 prop->u.ref = iter - This->prototype->props;
 495             }else {
 496                 prop = alloc_protref(This, iter->name, iter - This->prototype->props);
 497                 if(!prop)
 498                     return E_OUTOFMEMORY;
 499             }
 500         }
 501     }
 502
 503     return S_OK;
 504 }
 505
 506 static inline jsdisp_t *impl_from_IDispatchEx(IDispatchEx *iface)
 507 {
 508     return CONTAINING_RECORD(iface, jsdisp_t, IDispatchEx_iface);
 509 }
 510
 511 static HRESULT WINAPI DispatchEx_QueryInterface(IDispatchEx *iface, REFIID riid, void **ppv)
 512 {
 513     jsdisp_t *This = impl_from_IDispatchEx(iface);
 514
 515     if(IsEqualGUID(&IID_IUnknown, riid)) {
 516         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 517         *ppv = &This->IDispatchEx_iface;
 518     }else if(IsEqualGUID(&IID_IDispatch, riid)) {
 519         TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
 520         *ppv = &This->IDispatchEx_iface;
 521     }else if(IsEqualGUID(&IID_IDispatchEx, riid)) {
 522         TRACE("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
 523         *ppv = &This->IDispatchEx_iface;
 524     }else if(IsEqualGUID(&IID_IDispatchJS, riid)) {
 525         TRACE("(%p)->(IID_IDispatchJS %p)\n", This, ppv);
 526         jsdisp_addref(This);
 527         *ppv = This;
 528         return S_OK;
 529     }else {
 530         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
 531         *ppv = NULL;
 532         return E_NOINTERFACE;
 533     }
 534
 535     IUnknown_AddRef((IUnknown*)*ppv);
 536     return S_OK;
 537 }
 538
 539 static ULONG WINAPI DispatchEx_AddRef(IDispatchEx *iface)
 540 {
 541     jsdisp_t *This = impl_from_IDispatchEx(iface);
 542     LONG ref = InterlockedIncrement(&This->ref);
 543
 544     TRACE("(%p) ref=%d\n", This, ref);
 545
 546     return ref;
 547 }
 548
 549 static ULONG WINAPI DispatchEx_Release(IDispatchEx *iface)
 550 {
 551     jsdisp_t *This = impl_from_IDispatchEx(iface);
 552     LONG ref = InterlockedDecrement(&This->ref);
 553
 554     TRACE("(%p) ref=%d\n", This, ref);
 555
 556     if(!ref) {
 557         dispex_prop_t *prop;
 558
 559         for(prop = This->props; prop < This->props+This->prop_cnt; prop++) {
 560             if(prop->type == PROP_VARIANT)
 561                 VariantClear(&prop->u.var);
 562             heap_free(prop->name);
 563         }
 564         heap_free(This->props);
 565         script_release(This->ctx);
 566         if(This->prototype)
 567             jsdisp_release(This->prototype);
 568
 569         if(This->builtin_info->destructor)
 570             This->builtin_info->destructor(This);
 571         else
 572             heap_free(This);
 573     }
 574
 575     return ref;
 576 }
 577
 578 static HRESULT WINAPI DispatchEx_GetTypeInfoCount(IDispatchEx *iface, UINT *pctinfo)
 579 {
 580     jsdisp_t *This = impl_from_IDispatchEx(iface);
 581
 582     TRACE("(%p)->(%p)\n", This, pctinfo);
 583
 584     *pctinfo = 1;
 585     return S_OK;
 586 }
 587
 588 static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo, LCID lcid,
 589                                               ITypeInfo **ppTInfo)
 590 {
 591     jsdisp_t *This = impl_from_IDispatchEx(iface);
 592     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 593     return E_NOTIMPL;
 594 }
 595
 596 static HRESULT WINAPI DispatchEx_GetIDsOfNames(IDispatchEx *iface, REFIID riid,
 597                                                 LPOLESTR *rgszNames, UINT cNames, LCID lcid,
 598                                                 DISPID *rgDispId)
 599 {
 600     jsdisp_t *This = impl_from_IDispatchEx(iface);
 601     UINT i;
 602     HRESULT hres;
 603
 604     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 605           lcid, rgDispId);
 606
 607     for(i=0; i < cNames; i++) {
 608         hres = IDispatchEx_GetDispID(&This->IDispatchEx_iface, rgszNames[i], 0, rgDispId+i);
 609         if(FAILED(hres))
 610             return hres;
 611     }
 612
 613     return S_OK;
 614 }
 615
 616 static HRESULT WINAPI DispatchEx_Invoke(IDispatchEx *iface, DISPID dispIdMember,
 617                                         REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 618                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 619 {
 620     jsdisp_t *This = impl_from_IDispatchEx(iface);
 621
 622     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 623           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 624
 625     return IDispatchEx_InvokeEx(&This->IDispatchEx_iface, dispIdMember, lcid, wFlags,
 626             pDispParams, pVarResult, pExcepInfo, NULL);
 627 }
 628
 629 static HRESULT WINAPI DispatchEx_GetDispID(IDispatchEx *iface, BSTR bstrName, DWORD grfdex, DISPID *pid)
 630 {
 631     jsdisp_t *This = impl_from_IDispatchEx(iface);
 632
 633     TRACE("(%p)->(%s %x %p)\n", This, debugstr_w(bstrName), grfdex, pid);
 634
 635     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK)) {
 636         FIXME("Unsupported grfdex %x\n", grfdex);
 637         return E_NOTIMPL;
 638     }
 639
 640     return jsdisp_get_id(This, bstrName, grfdex, pid);
 641 }
 642
 643 static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lcid, WORD wFlags, DISPPARAMS *pdp,
 644         VARIANT *pvarRes, EXCEPINFO *pei, IServiceProvider *pspCaller)
 645 {
 646     jsdisp_t *This = impl_from_IDispatchEx(iface);
 647     dispex_prop_t *prop;
 648     jsexcept_t jsexcept;
 649     HRESULT hres;
 650
 651     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 652
 653     if(pvarRes)
 654         V_VT(pvarRes) = VT_EMPTY;
 655
 656     prop = get_prop(This, id);
 657     if(!prop || prop->type == PROP_DELETED) {
 658         TRACE("invalid id\n");
 659         return DISP_E_MEMBERNOTFOUND;
 660     }
 661
 662     memset(&jsexcept, 0, sizeof(jsexcept));
 663
 664     switch(wFlags) {
 665     case DISPATCH_METHOD|DISPATCH_PROPERTYGET:
 666         wFlags = DISPATCH_METHOD;
 667     case DISPATCH_METHOD:
 668     case DISPATCH_CONSTRUCT:
 669         hres = invoke_prop_func(This, This, prop, wFlags, pdp, pvarRes, &jsexcept, pspCaller);
 670         break;
 671     case DISPATCH_PROPERTYGET:
 672         hres = prop_get(This, prop, pdp, pvarRes, &jsexcept, pspCaller);
 673         break;
 674     case DISPATCH_PROPERTYPUT: {
 675         DWORD i;
 676
 677         for(i=0; i < pdp->cNamedArgs; i++) {
 678             if(pdp->rgdispidNamedArgs[i] == DISPID_PROPERTYPUT)
 679                 break;
 680         }
 681
 682         if(i == pdp->cNamedArgs) {
 683             TRACE("no value to set\n");
 684             return DISP_E_PARAMNOTOPTIONAL;
 685         }
 686
 687         hres = prop_put(This, prop, pdp->rgvarg+i, &jsexcept, pspCaller);
 688         break;
 689     }
 690     default:
 691         FIXME("Unimplemented flags %x\n", wFlags);
 692         return E_INVALIDARG;
 693     }
 694
 695     if(pei)
 696         *pei = jsexcept.ei;
 697
 698     return hres;
 699 }
 700
 701 static HRESULT delete_prop(dispex_prop_t *prop)
 702 {
 703     if(prop->type == PROP_VARIANT) {
 704         VariantClear(&prop->u.var);
 705         prop->type = PROP_DELETED;
 706     }
 707     return S_OK;
 708 }
 709
 710 static HRESULT WINAPI DispatchEx_DeleteMemberByName(IDispatchEx *iface, BSTR bstrName, DWORD grfdex)
 711 {
 712     jsdisp_t *This = impl_from_IDispatchEx(iface);
 713     dispex_prop_t *prop;
 714     HRESULT hres;
 715
 716     TRACE("(%p)->(%s %x)\n", This, debugstr_w(bstrName), grfdex);
 717
 718     if(grfdex & ~(fdexNameCaseSensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK))
 719         FIXME("Unsupported grfdex %x\n", grfdex);
 720
 721     hres = find_prop_name(This, string_hash(bstrName), bstrName, &prop);
 722     if(FAILED(hres))
 723         return hres;
 724     if(!prop) {
 725         TRACE("not found\n");
 726         return S_OK;
 727     }
 728
 729     return delete_prop(prop);
 730 }
 731
 732 static HRESULT WINAPI DispatchEx_DeleteMemberByDispID(IDispatchEx *iface, DISPID id)
 733 {
 734     jsdisp_t *This = impl_from_IDispatchEx(iface);
 735     dispex_prop_t *prop;
 736
 737     TRACE("(%p)->(%x)\n", This, id);
 738
 739     prop = get_prop(This, id);
 740     if(!prop) {
 741         WARN("invalid id\n");
 742         return DISP_E_MEMBERNOTFOUND;
 743     }
 744
 745     return delete_prop(prop);
 746 }
 747
 748 static HRESULT WINAPI DispatchEx_GetMemberProperties(IDispatchEx *iface, DISPID id, DWORD grfdexFetch, DWORD *pgrfdex)
 749 {
 750     jsdisp_t *This = impl_from_IDispatchEx(iface);
 751     FIXME("(%p)->(%x %x %p)\n", This, id, grfdexFetch, pgrfdex);
 752     return E_NOTIMPL;
 753 }
 754
 755 static HRESULT WINAPI DispatchEx_GetMemberName(IDispatchEx *iface, DISPID id, BSTR *pbstrName)
 756 {
 757     jsdisp_t *This = impl_from_IDispatchEx(iface);
 758     dispex_prop_t *prop;
 759
 760     TRACE("(%p)->(%x %p)\n", This, id, pbstrName);
 761
 762     prop = get_prop(This, id);
 763     if(!prop || !prop->name || prop->type == PROP_DELETED)
 764         return DISP_E_MEMBERNOTFOUND;
 765
 766     *pbstrName = SysAllocString(prop->name);
 767     if(!*pbstrName)
 768         return E_OUTOFMEMORY;
 769
 770     return S_OK;
 771 }
 772
 773 static HRESULT WINAPI DispatchEx_GetNextDispID(IDispatchEx *iface, DWORD grfdex, DISPID id, DISPID *pid)
 774 {
 775     jsdisp_t *This = impl_from_IDispatchEx(iface);
 776     dispex_prop_t *iter;
 777     HRESULT hres;
 778
 779     TRACE("(%p)->(%x %x %p)\n", This, grfdex, id, pid);
 780
 781     if(id == DISPID_STARTENUM) {
 782         hres = fill_protrefs(This);
 783         if(FAILED(hres))
 784             return hres;
 785     }
 786
 787     if(id+1>=0 && id+1<This->prop_cnt) {
 788         iter = &This->props[id+1];
 789     }else {
 790         *pid = DISPID_STARTENUM;
 791         return S_FALSE;
 792     }
 793
 794     while(iter < This->props + This->prop_cnt) {
 795         if(iter->name && (get_flags(This, iter) & PROPF_ENUM) && iter->type!=PROP_DELETED) {
 796             *pid = prop_to_id(This, iter);
 797             return S_OK;
 798         }
 799         iter++;
 800     }
 801
 802     *pid = DISPID_STARTENUM;
 803     return S_FALSE;
 804 }
 805
 806 static HRESULT WINAPI DispatchEx_GetNameSpaceParent(IDispatchEx *iface, IUnknown **ppunk)
 807 {
 808     jsdisp_t *This = impl_from_IDispatchEx(iface);
 809     FIXME("(%p)->(%p)\n", This, ppunk);
 810     return E_NOTIMPL;
 811 }
 812
 813 static IDispatchExVtbl DispatchExVtbl = {
 814     DispatchEx_QueryInterface,
 815     DispatchEx_AddRef,
 816     DispatchEx_Release,
 817     DispatchEx_GetTypeInfoCount,
 818     DispatchEx_GetTypeInfo,
 819     DispatchEx_GetIDsOfNames,
 820     DispatchEx_Invoke,
 821     DispatchEx_GetDispID,
 822     DispatchEx_InvokeEx,
 823     DispatchEx_DeleteMemberByName,
 824     DispatchEx_DeleteMemberByDispID,
 825     DispatchEx_GetMemberProperties,
 826     DispatchEx_GetMemberName,
 827     DispatchEx_GetNextDispID,
 828     DispatchEx_GetNameSpaceParent
 829 };
 830
 831 HRESULT init_dispex(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype)
 832 {
 833     TRACE("%p (%p)\n", dispex, prototype);
 834
 835     dispex->IDispatchEx_iface.lpVtbl = &DispatchExVtbl;
 836     dispex->ref = 1;
 837     dispex->builtin_info = builtin_info;
 838
 839     dispex->props = heap_alloc_zero(sizeof(dispex_prop_t)*(dispex->buf_size=4));
 840     if(!dispex->props)
 841         return E_OUTOFMEMORY;
 842
 843     dispex->prototype = prototype;
 844     if(prototype)
 845         jsdisp_addref(prototype);
 846
 847     dispex->prop_cnt = 1;
 848     if(builtin_info->value_prop.invoke) {
 849         dispex->props[0].type = PROP_BUILTIN;
 850         dispex->props[0].u.p = &builtin_info->value_prop;
 851     }else {
 852         dispex->props[0].type = PROP_DELETED;
 853     }
 854
 855     script_addref(ctx);
 856     dispex->ctx = ctx;
 857
 858     return S_OK;
 859 }
 860
 861 static const builtin_info_t dispex_info = {
 862     JSCLASS_NONE,
 863     {NULL, NULL, 0},
 864     0, NULL,
 865     NULL,
 866     NULL
 867 };
 868
 869 HRESULT create_dispex(script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype, jsdisp_t **dispex)
 870 {
 871     jsdisp_t *ret;
 872     HRESULT hres;
 873
 874     ret = heap_alloc_zero(sizeof(jsdisp_t));
 875     if(!ret)
 876         return E_OUTOFMEMORY;
 877
 878     hres = init_dispex(ret, ctx, builtin_info ? builtin_info : &dispex_info, prototype);
 879     if(FAILED(hres))
 880         return hres;
 881
 882     *dispex = ret;
 883     return S_OK;
 884 }
 885
 886 HRESULT init_dispex_from_constr(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *constr)
 887 {
 888     jsdisp_t *prot = NULL;
 889     dispex_prop_t *prop;
 890     HRESULT hres;
 891
 892     static const WCHAR constructorW[] = {'c','o','n','s','t','r','u','c','t','o','r',0};
 893     static const WCHAR prototypeW[] = {'p','r','o','t','o','t','y','p','e',0};
 894
 895     hres = find_prop_name_prot(constr, string_hash(prototypeW), prototypeW, &prop);
 896     if(SUCCEEDED(hres) && prop && prop->type!=PROP_DELETED) {
 897         jsexcept_t jsexcept;
 898         VARIANT var;
 899
 900         V_VT(&var) = VT_EMPTY;
 901         memset(&jsexcept, 0, sizeof(jsexcept));
 902         hres = prop_get(constr, prop, NULL, &var, &jsexcept, NULL/*FIXME*/);
 903         if(FAILED(hres)) {
 904             ERR("Could not get prototype\n");
 905             return hres;
 906         }
 907
 908         if(V_VT(&var) == VT_DISPATCH)
 909             prot = iface_to_jsdisp((IUnknown*)V_DISPATCH(&var));
 910         VariantClear(&var);
 911     }
 912
 913     hres = init_dispex(dispex, ctx, builtin_info, prot);
 914
 915     if(prot)
 916         jsdisp_release(prot);
 917     if(FAILED(hres))
 918         return hres;
 919
 920     hres = ensure_prop_name(dispex, constructorW, FALSE, 0, &prop);
 921     if(SUCCEEDED(hres)) {
 922         jsexcept_t jsexcept;
 923         VARIANT var;
 924
 925         var_set_jsdisp(&var, constr);
 926         memset(&jsexcept, 0, sizeof(jsexcept));
 927         hres = prop_put(dispex, prop, &var, &jsexcept, NULL/*FIXME*/);
 928     }
 929     if(FAILED(hres))
 930         jsdisp_release(dispex);
 931
 932     return hres;
 933 }
 934
 935 jsdisp_t *iface_to_jsdisp(IUnknown *iface)
 936 {
 937     jsdisp_t *ret;
 938     HRESULT hres;
 939
 940     hres = IUnknown_QueryInterface(iface, &IID_IDispatchJS, (void**)&ret);
 941     if(FAILED(hres))
 942         return NULL;
 943
 944     return ret;
 945 }
 946
 947 HRESULT jsdisp_get_id(jsdisp_t *jsdisp, const WCHAR *name, DWORD flags, DISPID *id)
 948 {
 949     dispex_prop_t *prop;
 950     HRESULT hres;
 951
 952     if(flags & fdexNameEnsure)
 953         hres = ensure_prop_name(jsdisp, name, TRUE, PROPF_ENUM, &prop);
 954     else
 955         hres = find_prop_name_prot(jsdisp, string_hash(name), name, &prop);
 956     if(FAILED(hres))
 957         return hres;
 958
 959     if(prop && prop->type!=PROP_DELETED) {
 960         *id = prop_to_id(jsdisp, prop);
 961         return S_OK;
 962     }
 963
 964     TRACE("not found %s\n", debugstr_w(name));
 965     return DISP_E_UNKNOWNNAME;
 966 }
 967
 968 HRESULT jsdisp_call_value(jsdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv,
 969         jsexcept_t *ei, IServiceProvider *caller)
 970 {
 971     vdisp_t vdisp;
 972     HRESULT hres;
 973
 974     set_jsdisp(&vdisp, jsthis);
 975     hres = jsthis->builtin_info->value_prop.invoke(jsthis->ctx, &vdisp, flags, dp, retv, ei, caller);
 976     vdisp_release(&vdisp);
 977     return hres;
 978 }
 979
 980 HRESULT jsdisp_call(jsdisp_t *disp, DISPID id, WORD flags, DISPPARAMS *dp, VARIANT *retv,
 981         jsexcept_t *ei, IServiceProvider *caller)
 982 {
 983     dispex_prop_t *prop;
 984
 985     memset(ei, 0, sizeof(*ei));
 986     if(retv)
 987         V_VT(retv) = VT_EMPTY;
 988
 989     prop = get_prop(disp, id);
 990     if(!prop)
 991         return DISP_E_MEMBERNOTFOUND;
 992
 993     return invoke_prop_func(disp, disp, prop, flags, dp, retv, ei, caller);
 994 }
 995
 996 HRESULT jsdisp_call_name(jsdisp_t *disp, const WCHAR *name, WORD flags, DISPPARAMS *dp, VARIANT *retv,
 997         jsexcept_t *ei, IServiceProvider *caller)
 998 {
 999     dispex_prop_t *prop;
1000     HRESULT hres;
1001
1002     hres = find_prop_name_prot(disp, string_hash(name), name, &prop);
1003     if(FAILED(hres))
1004         return hres;
1005
1006     memset(ei, 0, sizeof(*ei));
1007     if(retv)
1008         V_VT(retv) = VT_EMPTY;
1009
1010     return invoke_prop_func(disp, disp, prop, flags, dp, retv, ei, caller);
1011 }
1012
1013 HRESULT disp_call(script_ctx_t *ctx, IDispatch *disp, DISPID id, WORD flags, DISPPARAMS *dp, VARIANT *retv,
1014         jsexcept_t *ei, IServiceProvider *caller)
1015 {
1016     jsdisp_t *jsdisp;
1017     IDispatchEx *dispex;
1018     HRESULT hres;
1019
1020     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1021     if(jsdisp) {
1022         hres = jsdisp_call(jsdisp, id, flags, dp, retv, ei, caller);
1023         jsdisp_release(jsdisp);
1024         return hres;
1025     }
1026
1027     memset(ei, 0, sizeof(*ei));
1028     if(retv && arg_cnt(dp))
1029         flags |= DISPATCH_PROPERTYGET;
1030
1031     if(retv)
1032         V_VT(retv) = VT_EMPTY;
1033     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1034     if(FAILED(hres)) {
1035         UINT err = 0;
1036
1037         if(flags == DISPATCH_CONSTRUCT) {
1038             WARN("IDispatch cannot be constructor\n");
1039             return DISP_E_MEMBERNOTFOUND;
1040         }
1041
1042         TRACE("using IDispatch\n");
1043         return IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, flags, dp, retv, &ei->ei, &err);
1044     }
1045
1046     hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, flags, dp, retv, &ei->ei, caller);
1047     IDispatchEx_Release(dispex);
1048
1049     return hres;
1050 }
1051
1052 HRESULT jsdisp_propput_name(jsdisp_t *obj, const WCHAR *name, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
1053 {
1054     dispex_prop_t *prop;
1055     HRESULT hres;
1056
1057     hres = ensure_prop_name(obj, name, FALSE, PROPF_ENUM, &prop);
1058     if(FAILED(hres))
1059         return hres;
1060
1061     return prop_put(obj, prop, val, ei, caller);
1062 }
1063
1064 HRESULT jsdisp_propput_const(jsdisp_t *obj, const WCHAR *name, VARIANT *val)
1065 {
1066     dispex_prop_t *prop;
1067     HRESULT hres;
1068
1069     hres = ensure_prop_name(obj, name, FALSE, PROPF_ENUM|PROPF_CONST, &prop);
1070     if(FAILED(hres))
1071         return hres;
1072
1073     return VariantCopy(&prop->u.var, val);
1074 }
1075
1076 HRESULT jsdisp_propput_idx(jsdisp_t *obj, DWORD idx, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
1077 {
1078     WCHAR buf[12];
1079
1080     static const WCHAR formatW[] = {'%','d',0};
1081
1082     sprintfW(buf, formatW, idx);
1083     return jsdisp_propput_name(obj, buf, val, ei, caller);
1084 }
1085
1086 HRESULT disp_propput(script_ctx_t *ctx, IDispatch *disp, DISPID id, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
1087 {
1088     jsdisp_t *jsdisp;
1089     HRESULT hres;
1090
1091     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1092     if(jsdisp) {
1093         dispex_prop_t *prop;
1094
1095         prop = get_prop(jsdisp, id);
1096         if(prop)
1097             hres = prop_put(jsdisp, prop, val, ei, caller);
1098         else
1099             hres = DISP_E_MEMBERNOTFOUND;
1100
1101         jsdisp_release(jsdisp);
1102     }else {
1103         DISPID dispid = DISPID_PROPERTYPUT;
1104         DISPPARAMS dp  = {val, &dispid, 1, 1};
1105         IDispatchEx *dispex;
1106
1107         hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1108         if(SUCCEEDED(hres)) {
1109             hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ei->ei, caller);
1110             IDispatchEx_Release(dispex);
1111         }else {
1112             ULONG err = 0;
1113
1114             TRACE("using IDispatch\n");
1115             hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, DISPATCH_PROPERTYPUT, &dp, NULL, &ei->ei, &err);
1116         }
1117     }
1118
1119     return hres;
1120 }
1121
1122 HRESULT jsdisp_propget_name(jsdisp_t *obj, const WCHAR *name, VARIANT *var, jsexcept_t *ei, IServiceProvider *caller)
1123 {
1124     DISPPARAMS dp = {NULL, NULL, 0, 0};
1125     dispex_prop_t *prop;
1126     HRESULT hres;
1127
1128     hres = find_prop_name_prot(obj, string_hash(name), name, &prop);
1129     if(FAILED(hres))
1130         return hres;
1131
1132     V_VT(var) = VT_EMPTY;
1133     if(!prop || prop->type==PROP_DELETED)
1134         return S_OK;
1135
1136     return prop_get(obj, prop, &dp, var, ei, caller);
1137 }
1138
1139 HRESULT jsdisp_get_idx(jsdisp_t *obj, DWORD idx, VARIANT *var, jsexcept_t *ei, IServiceProvider *caller)
1140 {
1141     WCHAR name[12];
1142     DISPPARAMS dp = {NULL, NULL, 0, 0};
1143     dispex_prop_t *prop;
1144     HRESULT hres;
1145
1146     static const WCHAR formatW[] = {'%','d',0};
1147
1148     sprintfW(name, formatW, idx);
1149
1150     hres = find_prop_name_prot(obj, string_hash(name), name, &prop);
1151     if(FAILED(hres))
1152         return hres;
1153
1154     V_VT(var) = VT_EMPTY;
1155     if(!prop || prop->type==PROP_DELETED)
1156         return DISP_E_UNKNOWNNAME;
1157
1158     return prop_get(obj, prop, &dp, var, ei, caller);
1159 }
1160
1161 HRESULT jsdisp_propget(jsdisp_t *jsdisp, DISPID id, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
1162 {
1163     DISPPARAMS dp  = {NULL,NULL,0,0};
1164     dispex_prop_t *prop;
1165
1166     prop = get_prop(jsdisp, id);
1167     if(!prop)
1168         return DISP_E_MEMBERNOTFOUND;
1169
1170     V_VT(val) = VT_EMPTY;
1171     return prop_get(jsdisp, prop, &dp, val, ei, caller);
1172 }
1173
1174 HRESULT disp_propget(script_ctx_t *ctx, IDispatch *disp, DISPID id, VARIANT *val, jsexcept_t *ei, IServiceProvider *caller)
1175 {
1176     DISPPARAMS dp  = {NULL,NULL,0,0};
1177     IDispatchEx *dispex;
1178     jsdisp_t *jsdisp;
1179     HRESULT hres;
1180
1181     jsdisp = iface_to_jsdisp((IUnknown*)disp);
1182     if(jsdisp) {
1183         hres = jsdisp_propget(jsdisp, id, val, ei, caller);
1184         jsdisp_release(jsdisp);
1185         return hres;
1186     }
1187
1188     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
1189     if(FAILED(hres)) {
1190         ULONG err = 0;
1191
1192         TRACE("using IDispatch\n");
1193         return IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei, &err);
1194     }
1195
1196     hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, INVOKE_PROPERTYGET, &dp, val, &ei->ei, caller);
1197     IDispatchEx_Release(dispex);
1198
1199     return hres;
1200 }
1201
1202 HRESULT jsdisp_delete_idx(jsdisp_t *obj, DWORD idx)
1203 {
1204     static const WCHAR formatW[] = {'%','d',0};
1205     WCHAR buf[12];
1206     dispex_prop_t *prop;
1207     HRESULT hres;
1208
1209     sprintfW(buf, formatW, idx);
1210
1211     hres = find_prop_name(obj, string_hash(buf), buf, &prop);
1212     if(FAILED(hres) || !prop)
1213         return hres;
1214
1215     return delete_prop(prop);
1216 }
1217
1218 VARIANT_BOOL jsdisp_is_own_prop(jsdisp_t *obj, BSTR name)
1219 {
1220     dispex_prop_t *prop;
1221     HRESULT hres;
1222
1223     hres = find_prop_name(obj, string_hash(name), name, &prop);
1224     if(FAILED(hres))
1225         return VARIANT_FALSE;
1226     else if(!prop)
1227         return VARIANT_FALSE;
1228
1229     return prop->type==PROP_VARIANT ? VARIANT_TRUE : VARIANT_FALSE;
1230 }