dll/win32/mshtml/dispex.c

   1 /*
   2  * Copyright 2008-2009 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 <stdarg.h>
  20
  21 #define COBJMACROS
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "winuser.h"
  26 #include "ole2.h"
  27
  28 #include "wine/debug.h"
  29
  30 #include "mshtml_private.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  33
  34 static const WCHAR objectW[] = {'[','o','b','j','e','c','t',']',0};
  35
  36 typedef struct {
  37     DISPID id;
  38     BSTR name;
  39     tid_t tid;
  40     int func_disp_idx;
  41 } func_info_t;
  42
  43 struct dispex_data_t {
  44     DWORD func_cnt;
  45     func_info_t *funcs;
  46     func_info_t **name_table;
  47     DWORD func_disp_cnt;
  48
  49     struct list entry;
  50 };
  51
  52 typedef struct {
  53     VARIANT var;
  54     LPWSTR name;
  55 } dynamic_prop_t;
  56
  57 typedef struct {
  58     DispatchEx dispex;
  59     const IUnknownVtbl *lpIUnknownVtbl;
  60     DispatchEx *obj;
  61     func_info_t *info;
  62 } func_disp_t;
  63
  64 #define FUNCUNKNOWN(x)  ((IUnknown*) &(x)->lpIUnknownVtbl)
  65
  66 struct dispex_dynamic_data_t {
  67     DWORD buf_size;
  68     DWORD prop_cnt;
  69     dynamic_prop_t *props;
  70     func_disp_t **func_disps;
  71 };
  72
  73 #define DISPID_DYNPROP_0    0x50000000
  74 #define DISPID_DYNPROP_MAX  0x5fffffff
  75
  76 #define FDEX_VERSION_MASK 0xf0000000
  77
  78 static ITypeLib *typelib;
  79 static ITypeInfo *typeinfos[LAST_tid];
  80 static struct list dispex_data_list = LIST_INIT(dispex_data_list);
  81
  82 static REFIID tid_ids[] = {
  83     &IID_NULL,
  84     &DIID_DispCEventObj,
  85     &DIID_DispDOMChildrenCollection,
  86     &DIID_DispHTMLAnchorElement,
  87     &DIID_DispHTMLBody,
  88     &DIID_DispHTMLCommentElement,
  89     &DIID_DispHTMLCurrentStyle,
  90     &DIID_DispHTMLDocument,
  91     &DIID_DispHTMLDOMTextNode,
  92     &DIID_DispHTMLElementCollection,
  93     &DIID_DispHTMLFormElement,
  94     &DIID_DispHTMLGenericElement,
  95     &DIID_DispHTMLFrameElement,
  96     &DIID_DispHTMLIFrame,
  97     &DIID_DispHTMLImg,
  98     &DIID_DispHTMLInputElement,
  99     &DIID_DispHTMLLocation,
 100     &DIID_DispHTMLNavigator,
 101     &DIID_DispHTMLOptionElement,
 102     &DIID_DispHTMLScreen,
 103     &DIID_DispHTMLScriptElement,
 104     &DIID_DispHTMLSelectElement,
 105     &DIID_DispHTMLStyle,
 106     &DIID_DispHTMLTable,
 107     &DIID_DispHTMLTableRow,
 108     &DIID_DispHTMLTextAreaElement,
 109     &DIID_DispHTMLUnknownElement,
 110     &DIID_DispHTMLWindow2,
 111     &DIID_HTMLDocumentEvents,
 112     &IID_IHTMLAnchorElement,
 113     &IID_IHTMLBodyElement,
 114     &IID_IHTMLBodyElement2,
 115     &IID_IHTMLCommentElement,
 116     &IID_IHTMLCurrentStyle,
 117     &IID_IHTMLCurrentStyle2,
 118     &IID_IHTMLCurrentStyle3,
 119     &IID_IHTMLCurrentStyle4,
 120     &IID_IHTMLDocument2,
 121     &IID_IHTMLDocument3,
 122     &IID_IHTMLDocument4,
 123     &IID_IHTMLDocument5,
 124     &IID_IHTMLDOMChildrenCollection,
 125     &IID_IHTMLDOMNode,
 126     &IID_IHTMLDOMNode2,
 127     &IID_IHTMLDOMTextNode,
 128     &IID_IHTMLElement,
 129     &IID_IHTMLElement2,
 130     &IID_IHTMLElement3,
 131     &IID_IHTMLElement4,
 132     &IID_IHTMLElementCollection,
 133     &IID_IHTMLEventObj,
 134     &IID_IHTMLFiltersCollection,
 135     &IID_IHTMLFormElement,
 136     &IID_IHTMLFrameBase,
 137     &IID_IHTMLFrameBase2,
 138     &IID_IHTMLGenericElement,
 139     &IID_IHTMLFrameElement3,
 140     &IID_IHTMLIFrameElement,
 141     &IID_IHTMLImageElementFactory,
 142     &IID_IHTMLImgElement,
 143     &IID_IHTMLInputElement,
 144     &IID_IHTMLLocation,
 145     &IID_IHTMLOptionElement,
 146     &IID_IHTMLScreen,
 147     &IID_IHTMLScriptElement,
 148     &IID_IHTMLSelectElement,
 149     &IID_IHTMLStyle,
 150     &IID_IHTMLStyle2,
 151     &IID_IHTMLStyle3,
 152     &IID_IHTMLStyle4,
 153     &IID_IHTMLTable,
 154     &IID_IHTMLTableRow,
 155     &IID_IHTMLTextAreaElement,
 156     &IID_IHTMLTextContainer,
 157     &IID_IHTMLUniqueName,
 158     &IID_IHTMLWindow2,
 159     &IID_IHTMLWindow3,
 160     &IID_IHTMLWindow4,
 161     &IID_IOmNavigator
 162 };
 163
 164 static HRESULT get_typeinfo(tid_t tid, ITypeInfo **typeinfo)
 165 {
 166     HRESULT hres;
 167
 168     if(!typelib) {
 169         ITypeLib *tl;
 170
 171         hres = LoadRegTypeLib(&LIBID_MSHTML, 4, 0, LOCALE_SYSTEM_DEFAULT, &tl);
 172         if(FAILED(hres)) {
 173             ERR("LoadRegTypeLib failed: %08x\n", hres);
 174             return hres;
 175         }
 176
 177         if(InterlockedCompareExchangePointer((void**)&typelib, tl, NULL))
 178             ITypeLib_Release(tl);
 179     }
 180
 181     if(!typeinfos[tid]) {
 182         ITypeInfo *typeinfo;
 183
 184         hres = ITypeLib_GetTypeInfoOfGuid(typelib, tid_ids[tid], &typeinfo);
 185         if(FAILED(hres)) {
 186             ERR("GetTypeInfoOfGuid(%s) failed: %08x\n", debugstr_guid(tid_ids[tid]), hres);
 187             return hres;
 188         }
 189
 190         if(InterlockedCompareExchangePointer((void**)(typeinfos+tid), typeinfo, NULL))
 191             ITypeInfo_Release(typeinfo);
 192     }
 193
 194     *typeinfo = typeinfos[tid];
 195     return S_OK;
 196 }
 197
 198 void release_typelib(void)
 199 {
 200     dispex_data_t *iter;
 201     unsigned i;
 202
 203     while(!list_empty(&dispex_data_list)) {
 204         iter = LIST_ENTRY(list_head(&dispex_data_list), dispex_data_t, entry);
 205         list_remove(&iter->entry);
 206
 207         for(i=0; i < iter->func_cnt; i++)
 208             SysFreeString(iter->funcs[i].name);
 209
 210         heap_free(iter->funcs);
 211         heap_free(iter->name_table);
 212         heap_free(iter);
 213     }
 214
 215     if(!typelib)
 216         return;
 217
 218     for(i=0; i < sizeof(typeinfos)/sizeof(*typeinfos); i++)
 219         if(typeinfos[i])
 220             ITypeInfo_Release(typeinfos[i]);
 221
 222     ITypeLib_Release(typelib);
 223 }
 224
 225 static void add_func_info(dispex_data_t *data, DWORD *size, tid_t tid, const FUNCDESC *desc, ITypeInfo *dti)
 226 {
 227     HRESULT hres;
 228
 229     if(data->func_cnt && data->funcs[data->func_cnt-1].id == desc->memid)
 230         return;
 231
 232     if(data->func_cnt == *size)
 233         data->funcs = heap_realloc(data->funcs, (*size <<= 1)*sizeof(func_info_t));
 234
 235     hres = ITypeInfo_GetDocumentation(dti, desc->memid, &data->funcs[data->func_cnt].name, NULL, NULL, NULL);
 236     if(FAILED(hres))
 237         return;
 238
 239     data->funcs[data->func_cnt].id = desc->memid;
 240     data->funcs[data->func_cnt].tid = tid;
 241     data->funcs[data->func_cnt].func_disp_idx = (desc->invkind & DISPATCH_METHOD) ? data->func_disp_cnt++ : -1;
 242
 243     data->func_cnt++;
 244 }
 245
 246 static int dispid_cmp(const void *p1, const void *p2)
 247 {
 248     return ((func_info_t*)p1)->id - ((func_info_t*)p2)->id;
 249 }
 250
 251 static int func_name_cmp(const void *p1, const void *p2)
 252 {
 253     return strcmpiW((*(func_info_t**)p1)->name, (*(func_info_t**)p2)->name);
 254 }
 255
 256 static dispex_data_t *preprocess_dispex_data(DispatchEx *This)
 257 {
 258     const tid_t *tid = This->data->iface_tids;
 259     FUNCDESC *funcdesc;
 260     dispex_data_t *data;
 261     DWORD size = 16, i;
 262     ITypeInfo *ti, *dti;
 263     HRESULT hres;
 264
 265     TRACE("(%p)\n", This);
 266
 267     if(This->data->disp_tid) {
 268         hres = get_typeinfo(This->data->disp_tid, &dti);
 269         if(FAILED(hres)) {
 270             ERR("Could not get disp type info: %08x\n", hres);
 271             return NULL;
 272         }
 273     }
 274
 275     data = heap_alloc(sizeof(dispex_data_t));
 276     data->func_cnt = 0;
 277     data->func_disp_cnt = 0;
 278     data->funcs = heap_alloc(size*sizeof(func_info_t));
 279     list_add_tail(&dispex_data_list, &data->entry);
 280
 281     while(*tid) {
 282         hres = get_typeinfo(*tid, &ti);
 283         if(FAILED(hres))
 284             break;
 285
 286         i=7;
 287         while(1) {
 288             hres = ITypeInfo_GetFuncDesc(ti, i++, &funcdesc);
 289             if(FAILED(hres))
 290                 break;
 291
 292             add_func_info(data, &size, *tid, funcdesc, dti);
 293             ITypeInfo_ReleaseFuncDesc(ti, funcdesc);
 294         }
 295
 296         tid++;
 297     }
 298
 299     if(!data->func_cnt) {
 300         heap_free(data->funcs);
 301         data->funcs = NULL;
 302     }else if(data->func_cnt != size) {
 303         data->funcs = heap_realloc(data->funcs, data->func_cnt * sizeof(func_info_t));
 304     }
 305
 306     qsort(data->funcs, data->func_cnt, sizeof(func_info_t), dispid_cmp);
 307
 308     if(data->funcs) {
 309         data->name_table = heap_alloc(data->func_cnt * sizeof(func_info_t*));
 310         for(i=0; i < data->func_cnt; i++)
 311             data->name_table[i] = data->funcs+i;
 312         qsort(data->name_table, data->func_cnt, sizeof(func_info_t*), func_name_cmp);
 313     }else {
 314         data->name_table = NULL;
 315     }
 316
 317     return data;
 318 }
 319
 320 static int id_cmp(const void *p1, const void *p2)
 321 {
 322     return *(DISPID*)p1 - *(DISPID*)p2;
 323 }
 324
 325 HRESULT get_dispids(tid_t tid, DWORD *ret_size, DISPID **ret)
 326 {
 327     unsigned i, func_cnt;
 328     FUNCDESC *funcdesc;
 329     ITypeInfo *ti;
 330     TYPEATTR *attr;
 331     DISPID *ids;
 332     HRESULT hres;
 333
 334     hres = get_typeinfo(tid, &ti);
 335     if(FAILED(hres))
 336         return hres;
 337
 338     hres = ITypeInfo_GetTypeAttr(ti, &attr);
 339     if(FAILED(hres)) {
 340         ITypeInfo_Release(ti);
 341         return hres;
 342     }
 343
 344     func_cnt = attr->cFuncs;
 345     ITypeInfo_ReleaseTypeAttr(ti, attr);
 346
 347     ids = heap_alloc(func_cnt*sizeof(DISPID));
 348     if(!ids) {
 349         ITypeInfo_Release(ti);
 350         return E_OUTOFMEMORY;
 351     }
 352
 353     for(i=0; i < func_cnt; i++) {
 354         hres = ITypeInfo_GetFuncDesc(ti, i, &funcdesc);
 355         if(FAILED(hres))
 356             break;
 357
 358         ids[i] = funcdesc->memid;
 359         ITypeInfo_ReleaseFuncDesc(ti, funcdesc);
 360     }
 361
 362     ITypeInfo_Release(ti);
 363     if(FAILED(hres)) {
 364         heap_free(ids);
 365         return hres;
 366     }
 367
 368     qsort(ids, func_cnt, sizeof(DISPID), id_cmp);
 369
 370     *ret_size = func_cnt;
 371     *ret = ids;
 372     return S_OK;
 373 }
 374
 375 static CRITICAL_SECTION cs_dispex_static_data;
 376 static CRITICAL_SECTION_DEBUG cs_dispex_static_data_dbg =
 377 {
 378     0, 0, &cs_dispex_static_data,
 379     { &cs_dispex_static_data_dbg.ProcessLocksList, &cs_dispex_static_data_dbg.ProcessLocksList },
 380       0, 0, { (DWORD_PTR)(__FILE__ ": dispex_static_data") }
 381 };
 382 static CRITICAL_SECTION cs_dispex_static_data = { &cs_dispex_static_data_dbg, -1, 0, 0, 0, 0 };
 383
 384
 385 static dispex_data_t *get_dispex_data(DispatchEx *This)
 386 {
 387     if(This->data->data)
 388         return This->data->data;
 389
 390     EnterCriticalSection(&cs_dispex_static_data);
 391
 392     if(!This->data->data)
 393         This->data->data = preprocess_dispex_data(This);
 394
 395     LeaveCriticalSection(&cs_dispex_static_data);
 396
 397     return This->data->data;
 398 }
 399
 400 HRESULT call_disp_func(IDispatch *disp, DISPPARAMS *dp)
 401 {
 402     EXCEPINFO ei;
 403     IDispatchEx *dispex;
 404     VARIANT res;
 405     HRESULT hres;
 406
 407     VariantInit(&res);
 408     memset(&ei, 0, sizeof(ei));
 409
 410     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 411     if(SUCCEEDED(hres)) {
 412         hres = IDispatchEx_InvokeEx(dispex, 0, GetUserDefaultLCID(), DISPATCH_METHOD, dp, &res, &ei, NULL);
 413         IDispatchEx_Release(dispex);
 414     }else {
 415         TRACE("Could not get IDispatchEx interface: %08x\n", hres);
 416         hres = IDispatch_Invoke(disp, 0, &IID_NULL, GetUserDefaultLCID(), DISPATCH_METHOD,
 417                 dp, &res, &ei, NULL);
 418     }
 419
 420     VariantClear(&res);
 421     return hres;
 422 }
 423
 424 static inline BOOL is_custom_dispid(DISPID id)
 425 {
 426     return MSHTML_DISPID_CUSTOM_MIN <= id && id <= MSHTML_DISPID_CUSTOM_MAX;
 427 }
 428
 429 static inline BOOL is_dynamic_dispid(DISPID id)
 430 {
 431     return DISPID_DYNPROP_0 <= id && id <= DISPID_DYNPROP_MAX;
 432 }
 433
 434 static inline dispex_dynamic_data_t *get_dynamic_data(DispatchEx *This, BOOL alloc)
 435 {
 436     return !alloc || This->dynamic_data
 437         ? This->dynamic_data
 438         : (This->dynamic_data = heap_alloc_zero(sizeof(dispex_dynamic_data_t)));
 439 }
 440
 441 static HRESULT get_dynamic_prop(DispatchEx *This, const WCHAR *name, DWORD flags, dynamic_prop_t **ret)
 442 {
 443     const BOOL alloc = flags & fdexNameEnsure;
 444     dispex_dynamic_data_t *data;
 445     unsigned i;
 446
 447     data = get_dynamic_data(This, alloc);
 448     if(!data) {
 449         if(alloc)
 450             return E_OUTOFMEMORY;
 451
 452         TRACE("not found %s\n", debugstr_w(name));
 453         return DISP_E_UNKNOWNNAME;
 454     }
 455
 456     for(i=0; i < data->prop_cnt; i++) {
 457         if(flags & fdexNameCaseInsensitive ? !strcmpiW(data->props[i].name, name) : !strcmpW(data->props[i].name, name)) {
 458             *ret = data->props+i;
 459             return S_OK;
 460         }
 461     }
 462
 463     if(!alloc)
 464         return DISP_E_UNKNOWNNAME;
 465
 466     TRACE("creating dynamic prop %s\n", debugstr_w(name));
 467
 468     if(!data->buf_size) {
 469         data->props = heap_alloc(sizeof(dynamic_prop_t)*4);
 470         if(!data->props)
 471             return E_OUTOFMEMORY;
 472         data->buf_size = 4;
 473     }else if(data->buf_size == data->prop_cnt) {
 474         dynamic_prop_t *new_props;
 475
 476         new_props = heap_realloc(data->props, sizeof(dynamic_prop_t)*(data->buf_size<<1));
 477         if(!new_props)
 478             return E_OUTOFMEMORY;
 479
 480         data->props = new_props;
 481         data->buf_size <<= 1;
 482     }
 483
 484     data->props[data->prop_cnt].name = heap_strdupW(name);
 485     VariantInit(&data->props[data->prop_cnt].var);
 486     *ret = data->props + data->prop_cnt++;
 487
 488     return S_OK;
 489 }
 490
 491 HRESULT dispex_get_dprop_ref(DispatchEx *This, const WCHAR *name, BOOL alloc, VARIANT **ret)
 492 {
 493     dynamic_prop_t *prop;
 494     HRESULT hres;
 495
 496     hres = get_dynamic_prop(This, name, alloc ? fdexNameEnsure : 0, &prop);
 497     if(FAILED(hres))
 498         return hres;
 499
 500     *ret = &prop->var;
 501     return S_OK;
 502 }
 503
 504 static HRESULT dispex_value(DispatchEx *This, LCID lcid, WORD flags, DISPPARAMS *params,
 505         VARIANT *res, EXCEPINFO *ei, IServiceProvider *caller)
 506 {
 507     if(This->data->vtbl && This->data->vtbl->value)
 508         return This->data->vtbl->value(This->outer, lcid, flags, params, res, ei, caller);
 509
 510     switch(flags) {
 511     case DISPATCH_PROPERTYGET:
 512         V_VT(res) = VT_BSTR;
 513         V_BSTR(res) = SysAllocString(objectW);
 514         if(!V_BSTR(res))
 515             return E_OUTOFMEMORY;
 516         break;
 517     default:
 518         FIXME("Unimplemented flags %x\n", flags);
 519         return E_NOTIMPL;
 520     }
 521
 522     return S_OK;
 523 }
 524
 525 static HRESULT typeinfo_invoke(DispatchEx *This, func_info_t *func, WORD flags, DISPPARAMS *dp, VARIANT *res,
 526         EXCEPINFO *ei)
 527 {
 528     ITypeInfo *ti;
 529     IUnknown *unk;
 530     UINT argerr=0;
 531     HRESULT hres;
 532
 533     hres = get_typeinfo(func->tid, &ti);
 534     if(FAILED(hres)) {
 535         ERR("Could not get type info: %08x\n", hres);
 536         return hres;
 537     }
 538
 539     hres = IUnknown_QueryInterface(This->outer, tid_ids[func->tid], (void**)&unk);
 540     if(FAILED(hres)) {
 541         ERR("Could not get iface %s: %08x\n", debugstr_guid(tid_ids[func->tid]), hres);
 542         return E_FAIL;
 543     }
 544
 545     hres = ITypeInfo_Invoke(ti, unk, func->id, flags, dp, res, ei, &argerr);
 546
 547     IUnknown_Release(unk);
 548     return hres;
 549 }
 550
 551 #define FUNCTION_THIS(iface) DEFINE_THIS(func_disp_t, IUnknown, iface)
 552
 553 static HRESULT WINAPI Function_QueryInterface(IUnknown *iface, REFIID riid, void **ppv)
 554 {
 555     func_disp_t *This = FUNCTION_THIS(iface);
 556
 557     if(IsEqualGUID(&IID_IUnknown, riid)) {
 558         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 559         *ppv = FUNCUNKNOWN(This);
 560     }else if(dispex_query_interface(&This->dispex, riid, ppv)) {
 561         return *ppv ? S_OK : E_NOINTERFACE;
 562     }else {
 563         *ppv = NULL;
 564         return E_NOINTERFACE;
 565     }
 566
 567     IUnknown_AddRef((IUnknown*)*ppv);
 568     return S_OK;
 569 }
 570
 571 static ULONG WINAPI Function_AddRef(IUnknown *iface)
 572 {
 573     func_disp_t *This = FUNCTION_THIS(iface);
 574
 575     TRACE("(%p)\n", This);
 576
 577     return IDispatchEx_AddRef(DISPATCHEX(This->obj));
 578 }
 579
 580 static ULONG WINAPI Function_Release(IUnknown *iface)
 581 {
 582     func_disp_t *This = FUNCTION_THIS(iface);
 583
 584     TRACE("(%p)\n", This);
 585
 586     return IDispatchEx_Release(DISPATCHEX(This->obj));
 587 }
 588
 589 static HRESULT function_value(IUnknown *iface, LCID lcid, WORD flags, DISPPARAMS *params,
 590         VARIANT *res, EXCEPINFO *ei, IServiceProvider *caller)
 591 {
 592     func_disp_t *This = FUNCTION_THIS(iface);
 593     HRESULT hres;
 594
 595     switch(flags) {
 596     case DISPATCH_METHOD|DISPATCH_PROPERTYGET:
 597         if(!res)
 598             return E_INVALIDARG;
 599     case DISPATCH_METHOD:
 600         hres = typeinfo_invoke(This->obj, This->info, flags, params, res, ei);
 601         break;
 602     default:
 603         FIXME("Unimplemented flags %x\n", flags);
 604         hres = E_NOTIMPL;
 605     }
 606
 607     return hres;
 608 }
 609
 610 #undef FUNCTION_THIS
 611
 612 static const IUnknownVtbl FunctionUnkVtbl = {
 613     Function_QueryInterface,
 614     Function_AddRef,
 615     Function_Release
 616 };
 617
 618 static const dispex_static_data_vtbl_t function_dispex_vtbl = {
 619     function_value,
 620     NULL,
 621     NULL
 622 };
 623
 624 static const tid_t function_iface_tids[] = {0};
 625
 626 static dispex_static_data_t function_dispex = {
 627     &function_dispex_vtbl,
 628     NULL_tid,
 629     NULL,
 630     function_iface_tids
 631 };
 632
 633 static func_disp_t *create_func_disp(DispatchEx *obj, func_info_t *info)
 634 {
 635     func_disp_t *ret;
 636
 637     ret = heap_alloc_zero(sizeof(func_disp_t));
 638     if(!ret)
 639         return NULL;
 640
 641     ret->lpIUnknownVtbl = &FunctionUnkVtbl;
 642     init_dispex(&ret->dispex, FUNCUNKNOWN(ret),  &function_dispex);
 643     ret->obj = obj;
 644     ret->info = info;
 645
 646     return ret;
 647 }
 648
 649 static HRESULT function_invoke(DispatchEx *This, func_info_t *func, WORD flags, DISPPARAMS *dp, VARIANT *res,
 650         EXCEPINFO *ei)
 651 {
 652     HRESULT hres;
 653
 654     switch(flags) {
 655     case DISPATCH_METHOD|DISPATCH_PROPERTYGET:
 656         if(!res)
 657             return E_INVALIDARG;
 658     case DISPATCH_METHOD:
 659         hres = typeinfo_invoke(This, func, flags, dp, res, ei);
 660         break;
 661     case DISPATCH_PROPERTYGET: {
 662         dispex_dynamic_data_t *dynamic_data;
 663
 664         if(func->id == DISPID_VALUE) {
 665             BSTR ret;
 666
 667             ret = SysAllocString(objectW);
 668             if(!ret)
 669                 return E_OUTOFMEMORY;
 670
 671             V_VT(res) = VT_BSTR;
 672             V_BSTR(res) = ret;
 673             return S_OK;
 674         }
 675
 676         dynamic_data = get_dynamic_data(This, TRUE);
 677         if(!dynamic_data)
 678             return E_OUTOFMEMORY;
 679
 680         if(!dynamic_data->func_disps) {
 681             dynamic_data->func_disps = heap_alloc_zero(This->data->data->func_disp_cnt * sizeof(func_disp_t*));
 682             if(!dynamic_data->func_disps)
 683                 return E_OUTOFMEMORY;
 684         }
 685
 686         if(!dynamic_data->func_disps[func->func_disp_idx]) {
 687             dynamic_data->func_disps[func->func_disp_idx] = create_func_disp(This, func);
 688             if(!dynamic_data->func_disps[func->func_disp_idx])
 689                 return E_OUTOFMEMORY;
 690         }
 691
 692         V_VT(res) = VT_DISPATCH;
 693         V_DISPATCH(res) = (IDispatch*)DISPATCHEX(&dynamic_data->func_disps[func->func_disp_idx]->dispex);
 694         IDispatch_AddRef(V_DISPATCH(res));
 695         hres = S_OK;
 696         break;
 697     }
 698     default:
 699         FIXME("Unimplemented flags %x\n", flags);
 700     case DISPATCH_PROPERTYPUT:
 701         hres = E_NOTIMPL;
 702     }
 703
 704     return hres;
 705 }
 706
 707 static HRESULT get_builtin_func(dispex_data_t *data, DISPID id, func_info_t **ret)
 708 {
 709     int min, max, n;
 710
 711     min = 0;
 712     max = data->func_cnt-1;
 713
 714     while(min <= max) {
 715         n = (min+max)/2;
 716
 717         if(data->funcs[n].id == id) {
 718             *ret = data->funcs+n;
 719             return S_OK;
 720         }
 721
 722         if(data->funcs[n].id < id)
 723             min = n+1;
 724         else
 725             max = n-1;
 726     }
 727
 728     WARN("invalid id %x\n", id);
 729     return DISP_E_UNKNOWNNAME;
 730 }
 731
 732 #define DISPATCHEX_THIS(iface) DEFINE_THIS(DispatchEx, IDispatchEx, iface)
 733
 734 static HRESULT WINAPI DispatchEx_QueryInterface(IDispatchEx *iface, REFIID riid, void **ppv)
 735 {
 736     DispatchEx *This = DISPATCHEX_THIS(iface);
 737
 738     return IUnknown_QueryInterface(This->outer, riid, ppv);
 739 }
 740
 741 static ULONG WINAPI DispatchEx_AddRef(IDispatchEx *iface)
 742 {
 743     DispatchEx *This = DISPATCHEX_THIS(iface);
 744
 745     return IUnknown_AddRef(This->outer);
 746 }
 747
 748 static ULONG WINAPI DispatchEx_Release(IDispatchEx *iface)
 749 {
 750     DispatchEx *This = DISPATCHEX_THIS(iface);
 751
 752     return IUnknown_Release(This->outer);
 753 }
 754
 755 static HRESULT WINAPI DispatchEx_GetTypeInfoCount(IDispatchEx *iface, UINT *pctinfo)
 756 {
 757     DispatchEx *This = DISPATCHEX_THIS(iface);
 758
 759     TRACE("(%p)->(%p)\n", This, pctinfo);
 760
 761     *pctinfo = 1;
 762     return S_OK;
 763 }
 764
 765 static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo,
 766                                               LCID lcid, ITypeInfo **ppTInfo)
 767 {
 768     DispatchEx *This = DISPATCHEX_THIS(iface);
 769     HRESULT hres;
 770
 771     TRACE("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 772
 773     hres = get_typeinfo(This->data->disp_tid, ppTInfo);
 774     if(FAILED(hres))
 775         return hres;
 776
 777     ITypeInfo_AddRef(*ppTInfo);
 778     return S_OK;
 779 }
 780
 781 static HRESULT WINAPI DispatchEx_GetIDsOfNames(IDispatchEx *iface, REFIID riid,
 782                                                 LPOLESTR *rgszNames, UINT cNames,
 783                                                 LCID lcid, DISPID *rgDispId)
 784 {
 785     DispatchEx *This = DISPATCHEX_THIS(iface);
 786     UINT i;
 787     HRESULT hres;
 788
 789     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 790           lcid, rgDispId);
 791
 792     for(i=0; i < cNames; i++) {
 793         hres = IDispatchEx_GetDispID(DISPATCHEX(This), rgszNames[i], 0, rgDispId+i);
 794         if(FAILED(hres))
 795             return hres;
 796     }
 797
 798     return S_OK;
 799 }
 800
 801 static HRESULT WINAPI DispatchEx_Invoke(IDispatchEx *iface, DISPID dispIdMember,
 802                             REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 803                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 804 {
 805     DispatchEx *This = DISPATCHEX_THIS(iface);
 806
 807     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 808           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 809
 810     return IDispatchEx_InvokeEx(DISPATCHEX(This), dispIdMember, lcid, wFlags,
 811                                 pDispParams, pVarResult, pExcepInfo, NULL);
 812 }
 813
 814 static HRESULT WINAPI DispatchEx_GetDispID(IDispatchEx *iface, BSTR bstrName, DWORD grfdex, DISPID *pid)
 815 {
 816     DispatchEx *This = DISPATCHEX_THIS(iface);
 817     dynamic_prop_t *dprop;
 818     dispex_data_t *data;
 819     int min, max, n, c;
 820     HRESULT hres;
 821
 822     TRACE("(%p)->(%s %x %p)\n", This, debugstr_w(bstrName), grfdex, pid);
 823
 824     if(grfdex & ~(fdexNameCaseSensitive|fdexNameCaseInsensitive|fdexNameEnsure|fdexNameImplicit|FDEX_VERSION_MASK))
 825         FIXME("Unsupported grfdex %x\n", grfdex);
 826
 827     data = get_dispex_data(This);
 828     if(!data)
 829         return E_FAIL;
 830
 831     min = 0;
 832     max = data->func_cnt-1;
 833
 834     while(min <= max) {
 835         n = (min+max)/2;
 836
 837         c = strcmpiW(data->name_table[n]->name, bstrName);
 838         if(!c) {
 839             if((grfdex & fdexNameCaseSensitive) && strcmpW(data->name_table[n]->name, bstrName))
 840                 break;
 841
 842             *pid = data->name_table[n]->id;
 843             return S_OK;
 844         }
 845
 846         if(c > 0)
 847             max = n-1;
 848         else
 849             min = n+1;
 850     }
 851
 852     if(This->data->vtbl && This->data->vtbl->get_dispid) {
 853         HRESULT hres;
 854
 855         hres = This->data->vtbl->get_dispid(This->outer, bstrName, grfdex, pid);
 856         if(hres != DISP_E_UNKNOWNNAME)
 857             return hres;
 858     }
 859
 860     hres = get_dynamic_prop(This, bstrName, grfdex, &dprop);
 861     if(FAILED(hres))
 862         return hres;
 863
 864     *pid = DISPID_DYNPROP_0 + (dprop - This->dynamic_data->props);
 865     return S_OK;
 866 }
 867
 868 static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lcid, WORD wFlags, DISPPARAMS *pdp,
 869         VARIANT *pvarRes, EXCEPINFO *pei, IServiceProvider *pspCaller)
 870 {
 871     DispatchEx *This = DISPATCHEX_THIS(iface);
 872     dispex_data_t *data;
 873     func_info_t *func;
 874     HRESULT hres;
 875
 876     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 877
 878     if(is_custom_dispid(id) && This->data->vtbl && This->data->vtbl->invoke)
 879         return This->data->vtbl->invoke(This->outer, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 880
 881     if(wFlags == DISPATCH_CONSTRUCT) {
 882         if(id == DISPID_VALUE) {
 883             if(This->data->vtbl && This->data->vtbl->value) {
 884                 return This->data->vtbl->value(This->outer, lcid, wFlags, pdp,
 885                         pvarRes, pei, pspCaller);
 886             }
 887             FIXME("DISPATCH_CONSTRUCT flag but missing value function\n");
 888             return E_FAIL;
 889         }
 890         FIXME("DISPATCH_CONSTRUCT flag without DISPID_VALUE\n");
 891         return E_FAIL;
 892     }
 893
 894     if(is_dynamic_dispid(id)) {
 895         DWORD idx = id - DISPID_DYNPROP_0;
 896         VARIANT *var;
 897
 898         if(!This->dynamic_data || This->dynamic_data->prop_cnt <= idx)
 899             return DISP_E_UNKNOWNNAME;
 900
 901         var = &This->dynamic_data->props[idx].var;
 902
 903         switch(wFlags) {
 904         case DISPATCH_METHOD|DISPATCH_PROPERTYGET:
 905             if(!pvarRes)
 906                 return E_INVALIDARG;
 907         case DISPATCH_METHOD: {
 908             DISPID named_arg = DISPID_THIS;
 909             DISPPARAMS dp = {NULL, &named_arg, 0, 1};
 910             IDispatchEx *dispex;
 911
 912             if(V_VT(var) != VT_DISPATCH) {
 913                 FIXME("invoke vt %d\n", V_VT(var));
 914                 return E_NOTIMPL;
 915             }
 916
 917             if(pdp->cNamedArgs) {
 918                 FIXME("named args not supported\n");
 919                 return E_NOTIMPL;
 920             }
 921
 922             dp.rgvarg = heap_alloc((pdp->cArgs+1)*sizeof(VARIANTARG));
 923             if(!dp.rgvarg)
 924                 return E_OUTOFMEMORY;
 925
 926             dp.cArgs = pdp->cArgs+1;
 927             memcpy(dp.rgvarg+1, pdp->rgvarg, pdp->cArgs*sizeof(VARIANTARG));
 928
 929             V_VT(dp.rgvarg) = VT_DISPATCH;
 930             V_DISPATCH(dp.rgvarg) = (IDispatch*)DISPATCHEX(This);
 931
 932             hres = IDispatch_QueryInterface(V_DISPATCH(var), &IID_IDispatchEx, (void**)&dispex);
 933             TRACE("%s call\n", debugstr_w(This->dynamic_data->props[idx].name));
 934             if(SUCCEEDED(hres)) {
 935                 hres = IDispatchEx_InvokeEx(dispex, DISPID_VALUE, lcid, wFlags, &dp, pvarRes, pei, pspCaller);
 936                 IDispatchEx_Release(dispex);
 937             }else {
 938                 ULONG err = 0;
 939                 hres = IDispatch_Invoke(V_DISPATCH(var), DISPID_VALUE, &IID_NULL, lcid, wFlags, pdp, pvarRes, pei, &err);
 940             }
 941             TRACE("%s ret %08x\n", debugstr_w(This->dynamic_data->props[idx].name), hres);
 942
 943             heap_free(dp.rgvarg);
 944             return hres;
 945         }
 946         case DISPATCH_PROPERTYGET:
 947             return VariantCopy(pvarRes, var);
 948         case DISPATCH_PROPERTYPUT|DISPATCH_PROPERTYPUTREF:
 949         case DISPATCH_PROPERTYPUT:
 950             if(pdp->cArgs != 1 || (pdp->cNamedArgs == 1 && *pdp->rgdispidNamedArgs != DISPID_PROPERTYPUT)
 951                || pdp->cNamedArgs > 1) {
 952                 FIXME("invalid args\n");
 953                 return E_INVALIDARG;
 954             }
 955
 956             TRACE("put %s\n", debugstr_variant(pdp->rgvarg));
 957             VariantClear(var);
 958             return VariantCopy(var, pdp->rgvarg);
 959         default:
 960             FIXME("unhandled wFlags %x\n", wFlags);
 961             return E_NOTIMPL;
 962         }
 963     }
 964
 965     data = get_dispex_data(This);
 966     if(!data)
 967         return E_FAIL;
 968
 969     hres = get_builtin_func(data, id, &func);
 970     if(id == DISPID_VALUE && hres == DISP_E_UNKNOWNNAME)
 971         return dispex_value(This, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 972     if(FAILED(hres))
 973         return hres;
 974
 975     if(func->func_disp_idx == -1)
 976         hres = typeinfo_invoke(This, func, wFlags, pdp, pvarRes, pei);
 977     else
 978         hres = function_invoke(This, func, wFlags, pdp, pvarRes, pei);
 979
 980     return hres;
 981 }
 982
 983 static HRESULT WINAPI DispatchEx_DeleteMemberByName(IDispatchEx *iface, BSTR bstrName, DWORD grfdex)
 984 {
 985     DispatchEx *This = DISPATCHEX_THIS(iface);
 986
 987     TRACE("(%p)->(%s %x)\n", This, debugstr_w(bstrName), grfdex);
 988
 989     /* Not implemented by IE */
 990     return E_NOTIMPL;
 991 }
 992
 993 static HRESULT WINAPI DispatchEx_DeleteMemberByDispID(IDispatchEx *iface, DISPID id)
 994 {
 995     DispatchEx *This = DISPATCHEX_THIS(iface);
 996     FIXME("(%p)->(%x)\n", This, id);
 997     return E_NOTIMPL;
 998 }
 999
1000 static HRESULT WINAPI DispatchEx_GetMemberProperties(IDispatchEx *iface, DISPID id, DWORD grfdexFetch, DWORD *pgrfdex)
1001 {
1002     DispatchEx *This = DISPATCHEX_THIS(iface);
1003     FIXME("(%p)->(%x %x %p)\n", This, id, grfdexFetch, pgrfdex);
1004     return E_NOTIMPL;
1005 }
1006
1007 static HRESULT WINAPI DispatchEx_GetMemberName(IDispatchEx *iface, DISPID id, BSTR *pbstrName)
1008 {
1009     DispatchEx *This = DISPATCHEX_THIS(iface);
1010     dispex_data_t *data;
1011     func_info_t *func;
1012     HRESULT hres;
1013
1014     TRACE("(%p)->(%x %p)\n", This, id, pbstrName);
1015
1016     if(is_dynamic_dispid(id)) {
1017         DWORD idx = id - DISPID_DYNPROP_0;
1018
1019         if(!This->dynamic_data || This->dynamic_data->prop_cnt <= idx)
1020             return DISP_E_UNKNOWNNAME;
1021
1022         *pbstrName = SysAllocString(This->dynamic_data->props[idx].name);
1023         if(!*pbstrName)
1024             return E_OUTOFMEMORY;
1025
1026         return S_OK;
1027     }
1028
1029     data = get_dispex_data(This);
1030     if(!data)
1031         return E_FAIL;
1032
1033     hres = get_builtin_func(data, id, &func);
1034     if(FAILED(hres))
1035         return hres;
1036
1037     *pbstrName = SysAllocString(func->name);
1038     if(!*pbstrName)
1039         return E_OUTOFMEMORY;
1040     return S_OK;
1041 }
1042
1043 static HRESULT WINAPI DispatchEx_GetNextDispID(IDispatchEx *iface, DWORD grfdex, DISPID id, DISPID *pid)
1044 {
1045     DispatchEx *This = DISPATCHEX_THIS(iface);
1046     dispex_data_t *data;
1047     func_info_t *func;
1048     HRESULT hres;
1049
1050     TRACE("(%p)->(%x %x %p)\n", This, grfdex, id, pid);
1051
1052     if(is_dynamic_dispid(id)) {
1053         DWORD idx = id - DISPID_DYNPROP_0;
1054
1055         if(!This->dynamic_data || This->dynamic_data->prop_cnt <= idx)
1056             return DISP_E_UNKNOWNNAME;
1057
1058         if(idx+1 == This->dynamic_data->prop_cnt) {
1059             *pid = DISPID_STARTENUM;
1060             return S_FALSE;
1061         }
1062
1063         *pid = id+1;
1064         return S_OK;
1065     }
1066
1067     data = get_dispex_data(This);
1068     if(!data)
1069         return E_FAIL;
1070
1071     if(id == DISPID_STARTENUM) {
1072         func = data->funcs;
1073     }else {
1074         hres = get_builtin_func(data, id, &func);
1075         if(FAILED(hres))
1076             return hres;
1077         func++;
1078     }
1079
1080     while(func < data->funcs+data->func_cnt) {
1081         /* FIXME: Skip hidden properties */
1082         if(func->func_disp_idx == -1) {
1083             *pid = func->id;
1084             return S_OK;
1085         }
1086         func++;
1087     }
1088
1089     if(This->dynamic_data && This->dynamic_data->prop_cnt) {
1090         *pid = DISPID_DYNPROP_0;
1091         return S_OK;
1092     }
1093
1094     *pid = DISPID_STARTENUM;
1095     return S_FALSE;
1096 }
1097
1098 static HRESULT WINAPI DispatchEx_GetNameSpaceParent(IDispatchEx *iface, IUnknown **ppunk)
1099 {
1100     DispatchEx *This = DISPATCHEX_THIS(iface);
1101     FIXME("(%p)->(%p)\n", This, ppunk);
1102     return E_NOTIMPL;
1103 }
1104
1105 #undef DISPATCHEX_THIS
1106
1107 static IDispatchExVtbl DispatchExVtbl = {
1108     DispatchEx_QueryInterface,
1109     DispatchEx_AddRef,
1110     DispatchEx_Release,
1111     DispatchEx_GetTypeInfoCount,
1112     DispatchEx_GetTypeInfo,
1113     DispatchEx_GetIDsOfNames,
1114     DispatchEx_Invoke,
1115     DispatchEx_GetDispID,
1116     DispatchEx_InvokeEx,
1117     DispatchEx_DeleteMemberByName,
1118     DispatchEx_DeleteMemberByDispID,
1119     DispatchEx_GetMemberProperties,
1120     DispatchEx_GetMemberName,
1121     DispatchEx_GetNextDispID,
1122     DispatchEx_GetNameSpaceParent
1123 };
1124
1125 BOOL dispex_query_interface(DispatchEx *This, REFIID riid, void **ppv)
1126 {
1127     static const IID IID_UndocumentedScriptIface =
1128         {0x719c3050,0xf9d3,0x11cf,{0xa4,0x93,0x00,0x40,0x05,0x23,0xa8,0xa0}};
1129     static const IID IID_IDispatchJS =
1130         {0x719c3050,0xf9d3,0x11cf,{0xa4,0x93,0x00,0x40,0x05,0x23,0xa8,0xa6}};
1131
1132     if(IsEqualGUID(&IID_IDispatch, riid)) {
1133         TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
1134         *ppv = DISPATCHEX(This);
1135     }else if(IsEqualGUID(&IID_IDispatchEx, riid)) {
1136         TRACE("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
1137         *ppv = DISPATCHEX(This);
1138     }else if(IsEqualGUID(&IID_IDispatchJS, riid)) {
1139         TRACE("(%p)->(IID_IDispatchJS %p) returning NULL\n", This, ppv);
1140         *ppv = NULL;
1141     }else if(IsEqualGUID(&IID_UndocumentedScriptIface, riid)) {
1142         TRACE("(%p)->(IID_UndocumentedScriptIface %p) returning NULL\n", This, ppv);
1143         *ppv = NULL;
1144     }else {
1145         return FALSE;
1146     }
1147
1148     if(*ppv)
1149         IUnknown_AddRef((IUnknown*)*ppv);
1150     return TRUE;
1151 }
1152
1153 void release_dispex(DispatchEx *This)
1154 {
1155     dynamic_prop_t *prop;
1156
1157     if(!This->dynamic_data)
1158         return;
1159
1160     for(prop = This->dynamic_data->props; prop < This->dynamic_data->props + This->dynamic_data->prop_cnt; prop++) {
1161         VariantClear(&prop->var);
1162         heap_free(prop->name);
1163     }
1164
1165     heap_free(This->dynamic_data->props);
1166
1167     if(This->dynamic_data->func_disps) {
1168         unsigned i;
1169
1170         for(i=0; i < This->data->data->func_disp_cnt; i++) {
1171             if(This->dynamic_data->func_disps[i]) {
1172                 release_dispex(&This->dynamic_data->func_disps[i]->dispex);
1173                 heap_free(This->dynamic_data->func_disps[i]);
1174             }
1175         }
1176
1177         heap_free(This->dynamic_data->func_disps);
1178     }
1179
1180     heap_free(This->dynamic_data);
1181 }
1182
1183 void init_dispex(DispatchEx *dispex, IUnknown *outer, dispex_static_data_t *data)
1184 {
1185     dispex->lpIDispatchExVtbl = &DispatchExVtbl;
1186     dispex->outer = outer;
1187     dispex->data = data;
1188     dispex->dynamic_data = NULL;
1189 }