dlls/mshtml/htmlnode.c

   1 /*
   2  * Copyright 2006 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 #include <assert.h>
  21
  22 #define COBJMACROS
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winuser.h"
  27 #include "ole2.h"
  28
  29 #include "wine/debug.h"
  30
  31 #include "mshtml_private.h"
  32 #include "htmlevent.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  35
  36 static HTMLDOMNode *get_node_obj(HTMLDocumentNode*,IUnknown*);
  37 static HRESULT create_node(HTMLDocumentNode*,nsIDOMNode*,HTMLDOMNode**);
  38
  39 typedef struct {
  40     DispatchEx dispex;
  41     IHTMLDOMChildrenCollection IHTMLDOMChildrenCollection_iface;
  42
  43     LONG ref;
  44
  45     /* FIXME: implement weak reference */
  46     HTMLDocumentNode *doc;
  47
  48     nsIDOMNodeList *nslist;
  49 } HTMLDOMChildrenCollection;
  50
  51 static inline HTMLDOMChildrenCollection *impl_from_IHTMLDOMChildrenCollection(IHTMLDOMChildrenCollection *iface)
  52 {
  53     return CONTAINING_RECORD(iface, HTMLDOMChildrenCollection, IHTMLDOMChildrenCollection_iface);
  54 }
  55
  56 static HRESULT WINAPI HTMLDOMChildrenCollection_QueryInterface(IHTMLDOMChildrenCollection *iface, REFIID riid, void **ppv)
  57 {
  58     HTMLDOMChildrenCollection *This = impl_from_IHTMLDOMChildrenCollection(iface);
  59
  60     *ppv = NULL;
  61
  62     if(IsEqualGUID(&IID_IUnknown, riid)) {
  63         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
  64         *ppv = &This->IHTMLDOMChildrenCollection_iface;
  65     }else if(IsEqualGUID(&IID_IHTMLDOMChildrenCollection, riid)) {
  66         TRACE("(%p)->(IID_IHTMLDOMChildrenCollection %p)\n", This, ppv);
  67         *ppv = &This->IHTMLDOMChildrenCollection_iface;
  68     }else if(dispex_query_interface(&This->dispex, riid, ppv)) {
  69         return *ppv ? S_OK : E_NOINTERFACE;
  70     }
  71
  72     if(*ppv) {
  73         IUnknown_AddRef((IUnknown*)*ppv);
  74         return S_OK;
  75     }
  76
  77     WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
  78     return E_NOINTERFACE;
  79 }
  80
  81 static ULONG WINAPI HTMLDOMChildrenCollection_AddRef(IHTMLDOMChildrenCollection *iface)
  82 {
  83     HTMLDOMChildrenCollection *This = impl_from_IHTMLDOMChildrenCollection(iface);
  84     LONG ref = InterlockedIncrement(&This->ref);
  85
  86     TRACE("(%p) ref=%d\n", This, ref);
  87
  88     return ref;
  89 }
  90
  91 static ULONG WINAPI HTMLDOMChildrenCollection_Release(IHTMLDOMChildrenCollection *iface)
  92 {
  93     HTMLDOMChildrenCollection *This = impl_from_IHTMLDOMChildrenCollection(iface);
  94     LONG ref = InterlockedDecrement(&This->ref);
  95
  96     TRACE("(%p) ref=%d\n", This, ref);
  97
  98     if(!ref) {
  99         htmldoc_release(&This->doc->basedoc);
 100         nsIDOMNodeList_Release(This->nslist);
 101         heap_free(This);
 102     }
 103
 104     return ref;
 105 }
 106
 107 static HRESULT WINAPI HTMLDOMChildrenCollection_GetTypeInfoCount(IHTMLDOMChildrenCollection *iface, UINT *pctinfo)
 108 {
 109     HTMLDOMChildrenCollection *This = impl_from_IHTMLDOMChildrenCollection(iface);
 110     return IDispatchEx_GetTypeInfoCount(&This->dispex.IDispatchEx_iface, pctinfo);
 111 }
 112
 113 static HRESULT WINAPI HTMLDOMChildrenCollection_GetTypeInfo(IHTMLDOMChildrenCollection *iface, UINT iTInfo,
 114         LCID lcid, ITypeInfo **ppTInfo)
 115 {
 116     HTMLDOMChildrenCollection *This = impl_from_IHTMLDOMChildrenCollection(iface);
 117     return IDispatchEx_GetTypeInfo(&This->dispex.IDispatchEx_iface, iTInfo, lcid, ppTInfo);
 118 }
 119
 120 static HRESULT WINAPI HTMLDOMChildrenCollection_GetIDsOfNames(IHTMLDOMChildrenCollection *iface, REFIID riid,
 121         LPOLESTR *rgszNames, UINT cNames, LCID lcid, DISPID *rgDispId)
 122 {
 123     HTMLDOMChildrenCollection *This = impl_from_IHTMLDOMChildrenCollection(iface);
 124     return IDispatchEx_GetIDsOfNames(&This->dispex.IDispatchEx_iface, riid, rgszNames, cNames,
 125             lcid, rgDispId);
 126 }
 127
 128 static HRESULT WINAPI HTMLDOMChildrenCollection_Invoke(IHTMLDOMChildrenCollection *iface, DISPID dispIdMember,
 129         REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 130         VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 131 {
 132     HTMLDOMChildrenCollection *This = impl_from_IHTMLDOMChildrenCollection(iface);
 133     return IDispatchEx_Invoke(&This->dispex.IDispatchEx_iface, dispIdMember, riid, lcid,
 134             wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 135 }
 136
 137 static HRESULT WINAPI HTMLDOMChildrenCollection_get_length(IHTMLDOMChildrenCollection *iface, LONG *p)
 138 {
 139     HTMLDOMChildrenCollection *This = impl_from_IHTMLDOMChildrenCollection(iface);
 140     PRUint32 length=0;
 141
 142     TRACE("(%p)->(%p)\n", This, p);
 143
 144     nsIDOMNodeList_GetLength(This->nslist, &length);
 145     *p = length;
 146     return S_OK;
 147 }
 148
 149 static HRESULT WINAPI HTMLDOMChildrenCollection__newEnum(IHTMLDOMChildrenCollection *iface, IUnknown **p)
 150 {
 151     HTMLDOMChildrenCollection *This = impl_from_IHTMLDOMChildrenCollection(iface);
 152     FIXME("(%p)->(%p)\n", This, p);
 153     return E_NOTIMPL;
 154 }
 155
 156 static HRESULT WINAPI HTMLDOMChildrenCollection_item(IHTMLDOMChildrenCollection *iface, LONG index, IDispatch **ppItem)
 157 {
 158     HTMLDOMChildrenCollection *This = impl_from_IHTMLDOMChildrenCollection(iface);
 159     nsIDOMNode *nsnode = NULL;
 160     HTMLDOMNode *node;
 161     PRUint32 length=0;
 162     nsresult nsres;
 163     HRESULT hres;
 164
 165     TRACE("(%p)->(%d %p)\n", This, index, ppItem);
 166
 167     if (ppItem)
 168         *ppItem = NULL;
 169     else
 170         return E_POINTER;
 171
 172     nsIDOMNodeList_GetLength(This->nslist, &length);
 173     if(index < 0 || index >= length)
 174         return E_INVALIDARG;
 175
 176     nsres = nsIDOMNodeList_Item(This->nslist, index, &nsnode);
 177     if(NS_FAILED(nsres) || !nsnode) {
 178         ERR("Item failed: %08x\n", nsres);
 179         return E_FAIL;
 180     }
 181
 182     hres = get_node(This->doc, nsnode, TRUE, &node);
 183     if(FAILED(hres))
 184         return hres;
 185
 186     *ppItem = (IDispatch*)&node->IHTMLDOMNode_iface;
 187     return S_OK;
 188 }
 189
 190 static const IHTMLDOMChildrenCollectionVtbl HTMLDOMChildrenCollectionVtbl = {
 191     HTMLDOMChildrenCollection_QueryInterface,
 192     HTMLDOMChildrenCollection_AddRef,
 193     HTMLDOMChildrenCollection_Release,
 194     HTMLDOMChildrenCollection_GetTypeInfoCount,
 195     HTMLDOMChildrenCollection_GetTypeInfo,
 196     HTMLDOMChildrenCollection_GetIDsOfNames,
 197     HTMLDOMChildrenCollection_Invoke,
 198     HTMLDOMChildrenCollection_get_length,
 199     HTMLDOMChildrenCollection__newEnum,
 200     HTMLDOMChildrenCollection_item
 201 };
 202
 203 static inline HTMLDOMChildrenCollection *impl_from_DispatchEx(DispatchEx *iface)
 204 {
 205     return CONTAINING_RECORD(iface, HTMLDOMChildrenCollection, dispex);
 206 }
 207
 208 #define DISPID_CHILDCOL_0 MSHTML_DISPID_CUSTOM_MIN
 209
 210 static HRESULT HTMLDOMChildrenCollection_get_dispid(DispatchEx *dispex, BSTR name, DWORD flags, DISPID *dispid)
 211 {
 212     HTMLDOMChildrenCollection *This = impl_from_DispatchEx(dispex);
 213     WCHAR *ptr;
 214     DWORD idx=0;
 215     PRUint32 len = 0;
 216
 217     for(ptr = name; *ptr && isdigitW(*ptr); ptr++)
 218         idx = idx*10 + (*ptr-'0');
 219     if(*ptr)
 220         return DISP_E_UNKNOWNNAME;
 221
 222     nsIDOMNodeList_GetLength(This->nslist, &len);
 223     if(idx >= len)
 224         return DISP_E_UNKNOWNNAME;
 225
 226     *dispid = DISPID_CHILDCOL_0 + idx;
 227     TRACE("ret %x\n", *dispid);
 228     return S_OK;
 229 }
 230
 231 static HRESULT HTMLDOMChildrenCollection_invoke(DispatchEx *dispex, DISPID id, LCID lcid, WORD flags, DISPPARAMS *params,
 232         VARIANT *res, EXCEPINFO *ei, IServiceProvider *caller)
 233 {
 234     HTMLDOMChildrenCollection *This = impl_from_DispatchEx(dispex);
 235
 236     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, flags, params, res, ei, caller);
 237
 238     switch(flags) {
 239     case DISPATCH_PROPERTYGET: {
 240         IDispatch *disp = NULL;
 241         HRESULT hres;
 242
 243         hres = IHTMLDOMChildrenCollection_item(&This->IHTMLDOMChildrenCollection_iface,
 244                 id - DISPID_CHILDCOL_0, &disp);
 245         if(FAILED(hres))
 246             return hres;
 247
 248         V_VT(res) = VT_DISPATCH;
 249         V_DISPATCH(res) = disp;
 250         break;
 251     }
 252
 253     default:
 254         FIXME("unimplemented flags %x\n", flags);
 255         return E_NOTIMPL;
 256     }
 257
 258     return S_OK;
 259 }
 260
 261 static const dispex_static_data_vtbl_t HTMLDOMChildrenCollection_dispex_vtbl = {
 262     NULL,
 263     HTMLDOMChildrenCollection_get_dispid,
 264     HTMLDOMChildrenCollection_invoke,
 265     NULL
 266 };
 267
 268 static const tid_t HTMLDOMChildrenCollection_iface_tids[] = {
 269     IHTMLDOMChildrenCollection_tid,
 270     0
 271 };
 272
 273 static dispex_static_data_t HTMLDOMChildrenCollection_dispex = {
 274     &HTMLDOMChildrenCollection_dispex_vtbl,
 275     DispDOMChildrenCollection_tid,
 276     NULL,
 277     HTMLDOMChildrenCollection_iface_tids
 278 };
 279
 280 static IHTMLDOMChildrenCollection *create_child_collection(HTMLDocumentNode *doc, nsIDOMNodeList *nslist)
 281 {
 282     HTMLDOMChildrenCollection *ret;
 283
 284     ret = heap_alloc_zero(sizeof(*ret));
 285     ret->IHTMLDOMChildrenCollection_iface.lpVtbl = &HTMLDOMChildrenCollectionVtbl;
 286     ret->ref = 1;
 287
 288     nsIDOMNodeList_AddRef(nslist);
 289     ret->nslist = nslist;
 290
 291     htmldoc_addref(&doc->basedoc);
 292     ret->doc = doc;
 293
 294     init_dispex(&ret->dispex, (IUnknown*)&ret->IHTMLDOMChildrenCollection_iface,
 295             &HTMLDOMChildrenCollection_dispex);
 296
 297     return &ret->IHTMLDOMChildrenCollection_iface;
 298 }
 299
 300 static inline HTMLDOMNode *impl_from_IHTMLDOMNode(IHTMLDOMNode *iface)
 301 {
 302     return CONTAINING_RECORD(iface, HTMLDOMNode, IHTMLDOMNode_iface);
 303 }
 304
 305 static HRESULT WINAPI HTMLDOMNode_QueryInterface(IHTMLDOMNode *iface,
 306                                                  REFIID riid, void **ppv)
 307 {
 308     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 309
 310     return This->vtbl->qi(This, riid, ppv);
 311 }
 312
 313 static ULONG WINAPI HTMLDOMNode_AddRef(IHTMLDOMNode *iface)
 314 {
 315     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 316     LONG ref = ccref_incr(&This->ccref, (nsISupports*)&This->IHTMLDOMNode_iface);
 317
 318     TRACE("(%p) ref=%d\n", This, ref);
 319
 320     return ref;
 321 }
 322
 323 static ULONG WINAPI HTMLDOMNode_Release(IHTMLDOMNode *iface)
 324 {
 325     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 326     LONG ref = ccref_decr(&This->ccref, (nsISupports*)&This->IHTMLDOMNode_iface);
 327
 328     TRACE("(%p) ref=%d\n", This, ref);
 329
 330     if(!ref) {
 331         This->vtbl->destructor(This);
 332         release_dispex(&This->dispex);
 333         heap_free(This);
 334     }
 335
 336     return ref;
 337 }
 338
 339 static HRESULT WINAPI HTMLDOMNode_GetTypeInfoCount(IHTMLDOMNode *iface, UINT *pctinfo)
 340 {
 341     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 342     return IDispatchEx_GetTypeInfoCount(&This->dispex.IDispatchEx_iface, pctinfo);
 343 }
 344
 345 static HRESULT WINAPI HTMLDOMNode_GetTypeInfo(IHTMLDOMNode *iface, UINT iTInfo,
 346                                               LCID lcid, ITypeInfo **ppTInfo)
 347 {
 348     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 349     return IDispatchEx_GetTypeInfo(&This->dispex.IDispatchEx_iface, iTInfo, lcid, ppTInfo);
 350 }
 351
 352 static HRESULT WINAPI HTMLDOMNode_GetIDsOfNames(IHTMLDOMNode *iface, REFIID riid,
 353                                                 LPOLESTR *rgszNames, UINT cNames,
 354                                                 LCID lcid, DISPID *rgDispId)
 355 {
 356     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 357     return IDispatchEx_GetIDsOfNames(&This->dispex.IDispatchEx_iface, riid, rgszNames, cNames,
 358             lcid, rgDispId);
 359 }
 360
 361 static HRESULT WINAPI HTMLDOMNode_Invoke(IHTMLDOMNode *iface, DISPID dispIdMember,
 362                             REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 363                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 364 {
 365     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 366     return IDispatchEx_Invoke(&This->dispex.IDispatchEx_iface, dispIdMember, riid, lcid,
 367             wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 368 }
 369
 370 static HRESULT WINAPI HTMLDOMNode_get_nodeType(IHTMLDOMNode *iface, LONG *p)
 371 {
 372     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 373     PRUint16 type = -1;
 374
 375     TRACE("(%p)->(%p)\n", This, p);
 376
 377     nsIDOMNode_GetNodeType(This->nsnode, &type);
 378
 379     switch(type) {
 380     case ELEMENT_NODE:
 381         *p = 1;
 382         break;
 383     case TEXT_NODE:
 384         *p = 3;
 385         break;
 386     case COMMENT_NODE:
 387         *p = 8;
 388         break;
 389     case DOCUMENT_NODE:
 390         *p = 9;
 391         break;
 392     case DOCUMENT_FRAGMENT_NODE:
 393         *p = 11;
 394         break;
 395     default:
 396         /*
 397          * FIXME:
 398          * According to MSDN only ELEMENT_NODE and TEXT_NODE are supported.
 399          * It needs more tests.
 400          */
 401         FIXME("type %u\n", type);
 402         *p = 0;
 403     }
 404
 405     return S_OK;
 406 }
 407
 408 static HRESULT WINAPI HTMLDOMNode_get_parentNode(IHTMLDOMNode *iface, IHTMLDOMNode **p)
 409 {
 410     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 411     HTMLDOMNode *node;
 412     nsIDOMNode *nsnode;
 413     nsresult nsres;
 414     HRESULT hres;
 415
 416     TRACE("(%p)->(%p)\n", This, p);
 417
 418     nsres = nsIDOMNode_GetParentNode(This->nsnode, &nsnode);
 419     if(NS_FAILED(nsres)) {
 420         ERR("GetParentNode failed: %08x\n", nsres);
 421         return E_FAIL;
 422     }
 423
 424     if(!nsnode) {
 425         *p = NULL;
 426         return S_OK;
 427     }
 428
 429     hres = get_node(This->doc, nsnode, TRUE, &node);
 430     nsIDOMNode_Release(nsnode);
 431     if(FAILED(hres))
 432         return hres;
 433
 434     *p = &node->IHTMLDOMNode_iface;
 435     return S_OK;
 436 }
 437
 438 static HRESULT WINAPI HTMLDOMNode_hasChildNodes(IHTMLDOMNode *iface, VARIANT_BOOL *fChildren)
 439 {
 440     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 441     cpp_bool has_child = FALSE;
 442     nsresult nsres;
 443
 444     TRACE("(%p)->(%p)\n", This, fChildren);
 445
 446     nsres = nsIDOMNode_HasChildNodes(This->nsnode, &has_child);
 447     if(NS_FAILED(nsres))
 448         ERR("HasChildNodes failed: %08x\n", nsres);
 449
 450     *fChildren = has_child ? VARIANT_TRUE : VARIANT_FALSE;
 451     return S_OK;
 452 }
 453
 454 static HRESULT WINAPI HTMLDOMNode_get_childNodes(IHTMLDOMNode *iface, IDispatch **p)
 455 {
 456     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 457     nsIDOMNodeList *nslist;
 458     nsresult nsres;
 459
 460     TRACE("(%p)->(%p)\n", This, p);
 461
 462     nsres = nsIDOMNode_GetChildNodes(This->nsnode, &nslist);
 463     if(NS_FAILED(nsres)) {
 464         ERR("GetChildNodes failed: %08x\n", nsres);
 465         return E_FAIL;
 466     }
 467
 468     *p = (IDispatch*)create_child_collection(This->doc, nslist);
 469     nsIDOMNodeList_Release(nslist);
 470
 471     return S_OK;
 472 }
 473
 474 static HRESULT WINAPI HTMLDOMNode_get_attributes(IHTMLDOMNode *iface, IDispatch **p)
 475 {
 476     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 477     HTMLAttributeCollection *col;
 478     HRESULT hres;
 479
 480     TRACE("(%p)->(%p)\n", This, p);
 481
 482     if(This->vtbl->get_attr_col) {
 483         hres = This->vtbl->get_attr_col(This, &col);
 484         if(FAILED(hres))
 485             return hres;
 486
 487         *p = (IDispatch*)&col->IHTMLAttributeCollection_iface;
 488         return S_OK;
 489     }
 490
 491     *p = NULL;
 492     return S_OK;
 493 }
 494
 495 static HRESULT WINAPI HTMLDOMNode_insertBefore(IHTMLDOMNode *iface, IHTMLDOMNode *newChild,
 496                                                VARIANT refChild, IHTMLDOMNode **node)
 497 {
 498     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 499     HTMLDOMNode *new_child, *node_obj, *ref_node = NULL;
 500     nsIDOMNode *nsnode;
 501     nsresult nsres;
 502     HRESULT hres = S_OK;
 503
 504     TRACE("(%p)->(%p %s %p)\n", This, newChild, debugstr_variant(&refChild), node);
 505
 506     new_child = get_node_obj(This->doc, (IUnknown*)newChild);
 507     if(!new_child) {
 508         ERR("invalid newChild\n");
 509         return E_INVALIDARG;
 510     }
 511
 512     switch(V_VT(&refChild)) {
 513     case VT_NULL:
 514         break;
 515     case VT_DISPATCH: {
 516         if(!V_DISPATCH(&refChild))
 517             break;
 518         ref_node = get_node_obj(This->doc, (IUnknown*)V_DISPATCH(&refChild));
 519         if(!ref_node) {
 520             ERR("unvalid node\n");
 521             hres = E_FAIL;
 522             break;
 523         }
 524         break;
 525     }
 526     default:
 527         FIXME("unimplemented refChild %s\n", debugstr_variant(&refChild));
 528         hres = E_NOTIMPL;
 529     }
 530
 531     if(SUCCEEDED(hres)) {
 532         nsres = nsIDOMNode_InsertBefore(This->nsnode, new_child->nsnode, ref_node ? ref_node->nsnode : NULL, &nsnode);
 533         if(NS_FAILED(nsres)) {
 534             ERR("InsertBefore failed: %08x\n", nsres);
 535             hres = E_FAIL;
 536         }
 537     }
 538     node_release(new_child);
 539     if(ref_node)
 540         node_release(ref_node);
 541     if(FAILED(hres))
 542         return hres;
 543
 544     hres = get_node(This->doc, nsnode, TRUE, &node_obj);
 545     nsIDOMNode_Release(nsnode);
 546     if(FAILED(hres))
 547         return hres;
 548
 549     *node = &node_obj->IHTMLDOMNode_iface;
 550     return S_OK;
 551 }
 552
 553 static HRESULT WINAPI HTMLDOMNode_removeChild(IHTMLDOMNode *iface, IHTMLDOMNode *oldChild,
 554                                               IHTMLDOMNode **node)
 555 {
 556     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 557     HTMLDOMNode *node_obj;
 558     nsIDOMNode *nsnode;
 559     nsresult nsres;
 560     HRESULT hres;
 561
 562     TRACE("(%p)->(%p %p)\n", This, oldChild, node);
 563
 564     node_obj = get_node_obj(This->doc, (IUnknown*)oldChild);
 565     if(!node_obj)
 566         return E_FAIL;
 567
 568     nsres = nsIDOMNode_RemoveChild(This->nsnode, node_obj->nsnode, &nsnode);
 569     node_release(node_obj);
 570     if(NS_FAILED(nsres)) {
 571         ERR("RemoveChild failed: %08x\n", nsres);
 572         return E_FAIL;
 573     }
 574
 575     hres = get_node(This->doc, nsnode, TRUE, &node_obj);
 576     nsIDOMNode_Release(nsnode);
 577     if(FAILED(hres))
 578         return hres;
 579
 580     /* FIXME: Make sure that node != newChild */
 581     *node = &node_obj->IHTMLDOMNode_iface;
 582     return S_OK;
 583 }
 584
 585 static HRESULT WINAPI HTMLDOMNode_replaceChild(IHTMLDOMNode *iface, IHTMLDOMNode *newChild,
 586                                                IHTMLDOMNode *oldChild, IHTMLDOMNode **node)
 587 {
 588     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 589     HTMLDOMNode *node_new, *node_old, *ret_node;
 590     nsIDOMNode *nsnode;
 591     nsresult nsres;
 592     HRESULT hres;
 593
 594     TRACE("(%p)->(%p %p %p)\n", This, newChild, oldChild, node);
 595
 596     node_new = get_node_obj(This->doc, (IUnknown*)newChild);
 597     if(!node_new)
 598         return E_FAIL;
 599
 600     node_old = get_node_obj(This->doc, (IUnknown*)oldChild);
 601     if(!node_old) {
 602         node_release(node_new);
 603         return E_FAIL;
 604     }
 605
 606     nsres = nsIDOMNode_ReplaceChild(This->nsnode, node_new->nsnode, node_old->nsnode, &nsnode);
 607     node_release(node_new);
 608     node_release(node_old);
 609     if(NS_FAILED(nsres))
 610         return E_FAIL;
 611
 612     hres = get_node(This->doc, nsnode, TRUE, &ret_node);
 613     nsIDOMNode_Release(nsnode);
 614     if(FAILED(hres))
 615         return hres;
 616
 617     *node = &ret_node->IHTMLDOMNode_iface;
 618     return S_OK;
 619 }
 620
 621 static HRESULT WINAPI HTMLDOMNode_cloneNode(IHTMLDOMNode *iface, VARIANT_BOOL fDeep,
 622                                             IHTMLDOMNode **clonedNode)
 623 {
 624     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 625     HTMLDOMNode *new_node;
 626     nsIDOMNode *nsnode;
 627     nsresult nsres;
 628     HRESULT hres;
 629
 630     TRACE("(%p)->(%x %p)\n", This, fDeep, clonedNode);
 631
 632     nsres = nsIDOMNode_CloneNode(This->nsnode, fDeep != VARIANT_FALSE, 1, &nsnode);
 633     if(NS_FAILED(nsres) || !nsnode) {
 634         ERR("CloneNode failed: %08x\n", nsres);
 635         return E_FAIL;
 636     }
 637
 638     hres = This->vtbl->clone(This, nsnode, &new_node);
 639     if(FAILED(hres))
 640         return hres;
 641
 642     *clonedNode = &new_node->IHTMLDOMNode_iface;
 643     return S_OK;
 644 }
 645
 646 static HRESULT WINAPI HTMLDOMNode_removeNode(IHTMLDOMNode *iface, VARIANT_BOOL fDeep,
 647                                              IHTMLDOMNode **removed)
 648 {
 649     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 650     FIXME("(%p)->(%x %p)\n", This, fDeep, removed);
 651     return E_NOTIMPL;
 652 }
 653
 654 static HRESULT WINAPI HTMLDOMNode_swapNode(IHTMLDOMNode *iface, IHTMLDOMNode *otherNode,
 655                                            IHTMLDOMNode **swappedNode)
 656 {
 657     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 658     FIXME("(%p)->(%p %p)\n", This, otherNode, swappedNode);
 659     return E_NOTIMPL;
 660 }
 661
 662 static HRESULT WINAPI HTMLDOMNode_replaceNode(IHTMLDOMNode *iface, IHTMLDOMNode *replacement,
 663                                               IHTMLDOMNode **replaced)
 664 {
 665     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 666     FIXME("(%p)->(%p %p)\n", This, replacement, replaced);
 667     return E_NOTIMPL;
 668 }
 669
 670 static HRESULT WINAPI HTMLDOMNode_appendChild(IHTMLDOMNode *iface, IHTMLDOMNode *newChild,
 671                                               IHTMLDOMNode **node)
 672 {
 673     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 674     HTMLDOMNode *node_obj;
 675     nsIDOMNode *nsnode;
 676     nsresult nsres;
 677     HRESULT hres;
 678
 679     TRACE("(%p)->(%p %p)\n", This, newChild, node);
 680
 681     node_obj = get_node_obj(This->doc, (IUnknown*)newChild);
 682     if(!node_obj)
 683         return E_FAIL;
 684
 685     nsres = nsIDOMNode_AppendChild(This->nsnode, node_obj->nsnode, &nsnode);
 686     node_release(node_obj);
 687     if(NS_FAILED(nsres)) {
 688         ERR("AppendChild failed: %08x\n", nsres);
 689         return E_FAIL;
 690     }
 691
 692     hres = get_node(This->doc, nsnode, TRUE, &node_obj);
 693     nsIDOMNode_Release(nsnode);
 694     if(FAILED(hres))
 695         return hres;
 696
 697     /* FIXME: Make sure that node != newChild */
 698     *node = &node_obj->IHTMLDOMNode_iface;
 699     return S_OK;
 700 }
 701
 702 static HRESULT WINAPI HTMLDOMNode_get_nodeName(IHTMLDOMNode *iface, BSTR *p)
 703 {
 704     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 705     nsAString name;
 706     nsresult nsres;
 707
 708     TRACE("(%p)->(%p)\n", This, p);
 709
 710     nsAString_Init(&name, NULL);
 711     nsres = nsIDOMNode_GetNodeName(This->nsnode, &name);
 712     return return_nsstr(nsres, &name, p);
 713 }
 714
 715 static HRESULT WINAPI HTMLDOMNode_put_nodeValue(IHTMLDOMNode *iface, VARIANT v)
 716 {
 717     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 718
 719     TRACE("(%p)->(%s)\n", This, debugstr_variant(&v));
 720
 721     switch(V_VT(&v)) {
 722     case VT_BSTR: {
 723         nsAString val_str;
 724
 725         nsAString_InitDepend(&val_str, V_BSTR(&v));
 726         nsIDOMNode_SetNodeValue(This->nsnode, &val_str);
 727         nsAString_Finish(&val_str);
 728
 729         return S_OK;
 730     }
 731
 732     default:
 733         FIXME("unsupported value %s\n", debugstr_variant(&v));
 734     }
 735
 736     return E_NOTIMPL;
 737 }
 738
 739 static HRESULT WINAPI HTMLDOMNode_get_nodeValue(IHTMLDOMNode *iface, VARIANT *p)
 740 {
 741     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 742     const PRUnichar *val;
 743     nsAString val_str;
 744
 745     TRACE("(%p)->(%p)\n", This, p);
 746
 747     nsAString_Init(&val_str, NULL);
 748     nsIDOMNode_GetNodeValue(This->nsnode, &val_str);
 749     nsAString_GetData(&val_str, &val);
 750
 751     if(*val) {
 752         V_VT(p) = VT_BSTR;
 753         V_BSTR(p) = SysAllocString(val);
 754     }else {
 755         V_VT(p) = VT_NULL;
 756     }
 757
 758     nsAString_Finish(&val_str);
 759
 760     return S_OK;
 761 }
 762
 763 static HRESULT WINAPI HTMLDOMNode_get_firstChild(IHTMLDOMNode *iface, IHTMLDOMNode **p)
 764 {
 765     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 766     nsIDOMNode *nschild = NULL;
 767     HTMLDOMNode *node;
 768     HRESULT hres;
 769
 770     TRACE("(%p)->(%p)\n", This, p);
 771
 772     nsIDOMNode_GetFirstChild(This->nsnode, &nschild);
 773     if(!nschild) {
 774         *p = NULL;
 775         return S_OK;
 776     }
 777
 778     hres = get_node(This->doc, nschild, TRUE, &node);
 779     nsIDOMNode_Release(nschild);
 780     if(FAILED(hres))
 781         return hres;
 782
 783     *p = &node->IHTMLDOMNode_iface;
 784     return S_OK;
 785 }
 786
 787 static HRESULT WINAPI HTMLDOMNode_get_lastChild(IHTMLDOMNode *iface, IHTMLDOMNode **p)
 788 {
 789     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 790     nsIDOMNode *nschild = NULL;
 791     HTMLDOMNode *node;
 792     HRESULT hres;
 793
 794     TRACE("(%p)->(%p)\n", This, p);
 795
 796     nsIDOMNode_GetLastChild(This->nsnode, &nschild);
 797     if(!nschild) {
 798         *p = NULL;
 799         return S_OK;
 800     }
 801
 802     hres = get_node(This->doc, nschild, TRUE, &node);
 803     nsIDOMNode_Release(nschild);
 804     if(FAILED(hres))
 805         return hres;
 806
 807     *p = &node->IHTMLDOMNode_iface;
 808     return S_OK;
 809 }
 810
 811 static HRESULT WINAPI HTMLDOMNode_get_previousSibling(IHTMLDOMNode *iface, IHTMLDOMNode **p)
 812 {
 813     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 814     nsIDOMNode *nschild = NULL;
 815     HTMLDOMNode *node;
 816     HRESULT hres;
 817
 818     TRACE("(%p)->(%p)\n", This, p);
 819
 820     nsIDOMNode_GetPreviousSibling(This->nsnode, &nschild);
 821     if(!nschild) {
 822         *p = NULL;
 823         return S_OK;
 824     }
 825
 826     hres = get_node(This->doc, nschild, TRUE, &node);
 827     nsIDOMNode_Release(nschild);
 828     if(FAILED(hres))
 829         return hres;
 830
 831     *p = &node->IHTMLDOMNode_iface;
 832     return S_OK;
 833 }
 834
 835 static HRESULT WINAPI HTMLDOMNode_get_nextSibling(IHTMLDOMNode *iface, IHTMLDOMNode **p)
 836 {
 837     HTMLDOMNode *This = impl_from_IHTMLDOMNode(iface);
 838     nsIDOMNode *nssibling = NULL;
 839     HTMLDOMNode *node;
 840     HRESULT hres;
 841
 842     TRACE("(%p)->(%p)\n", This, p);
 843
 844     nsIDOMNode_GetNextSibling(This->nsnode, &nssibling);
 845     if(!nssibling) {
 846         *p = NULL;
 847         return S_OK;
 848     }
 849
 850     hres = get_node(This->doc, nssibling, TRUE, &node);
 851     nsIDOMNode_Release(nssibling);
 852     if(FAILED(hres))
 853         return hres;
 854
 855     *p = &node->IHTMLDOMNode_iface;
 856     return S_OK;
 857 }
 858
 859 static const IHTMLDOMNodeVtbl HTMLDOMNodeVtbl = {
 860     HTMLDOMNode_QueryInterface,
 861     HTMLDOMNode_AddRef,
 862     HTMLDOMNode_Release,
 863     HTMLDOMNode_GetTypeInfoCount,
 864     HTMLDOMNode_GetTypeInfo,
 865     HTMLDOMNode_GetIDsOfNames,
 866     HTMLDOMNode_Invoke,
 867     HTMLDOMNode_get_nodeType,
 868     HTMLDOMNode_get_parentNode,
 869     HTMLDOMNode_hasChildNodes,
 870     HTMLDOMNode_get_childNodes,
 871     HTMLDOMNode_get_attributes,
 872     HTMLDOMNode_insertBefore,
 873     HTMLDOMNode_removeChild,
 874     HTMLDOMNode_replaceChild,
 875     HTMLDOMNode_cloneNode,
 876     HTMLDOMNode_removeNode,
 877     HTMLDOMNode_swapNode,
 878     HTMLDOMNode_replaceNode,
 879     HTMLDOMNode_appendChild,
 880     HTMLDOMNode_get_nodeName,
 881     HTMLDOMNode_put_nodeValue,
 882     HTMLDOMNode_get_nodeValue,
 883     HTMLDOMNode_get_firstChild,
 884     HTMLDOMNode_get_lastChild,
 885     HTMLDOMNode_get_previousSibling,
 886     HTMLDOMNode_get_nextSibling
 887 };
 888
 889 static HTMLDOMNode *get_node_obj(HTMLDocumentNode *This, IUnknown *iface)
 890 {
 891     IHTMLDOMNode *node;
 892     HRESULT hres;
 893
 894     hres = IUnknown_QueryInterface(iface, &IID_IHTMLDOMNode, (void**)&node);
 895     return hres == S_OK && node->lpVtbl == &HTMLDOMNodeVtbl ? impl_from_IHTMLDOMNode(node) : NULL;
 896 }
 897
 898 static inline HTMLDOMNode *impl_from_IHTMLDOMNode2(IHTMLDOMNode2 *iface)
 899 {
 900     return CONTAINING_RECORD(iface, HTMLDOMNode, IHTMLDOMNode2_iface);
 901 }
 902
 903 static HRESULT WINAPI HTMLDOMNode2_QueryInterface(IHTMLDOMNode2 *iface,
 904         REFIID riid, void **ppv)
 905 {
 906     HTMLDOMNode *This = impl_from_IHTMLDOMNode2(iface);
 907
 908     return IHTMLDOMNode_QueryInterface(&This->IHTMLDOMNode_iface, riid, ppv);
 909 }
 910
 911 static ULONG WINAPI HTMLDOMNode2_AddRef(IHTMLDOMNode2 *iface)
 912 {
 913     HTMLDOMNode *This = impl_from_IHTMLDOMNode2(iface);
 914
 915     return IHTMLDOMNode_AddRef(&This->IHTMLDOMNode_iface);
 916 }
 917
 918 static ULONG WINAPI HTMLDOMNode2_Release(IHTMLDOMNode2 *iface)
 919 {
 920     HTMLDOMNode *This = impl_from_IHTMLDOMNode2(iface);
 921
 922     return IHTMLDOMNode_Release(&This->IHTMLDOMNode_iface);
 923 }
 924
 925 static HRESULT WINAPI HTMLDOMNode2_GetTypeInfoCount(IHTMLDOMNode2 *iface, UINT *pctinfo)
 926 {
 927     HTMLDOMNode *This = impl_from_IHTMLDOMNode2(iface);
 928     return IDispatchEx_GetTypeInfoCount(&This->dispex.IDispatchEx_iface, pctinfo);
 929 }
 930
 931 static HRESULT WINAPI HTMLDOMNode2_GetTypeInfo(IHTMLDOMNode2 *iface, UINT iTInfo,
 932         LCID lcid, ITypeInfo **ppTInfo)
 933 {
 934     HTMLDOMNode *This = impl_from_IHTMLDOMNode2(iface);
 935     return IDispatchEx_GetTypeInfo(&This->dispex.IDispatchEx_iface, iTInfo, lcid, ppTInfo);
 936 }
 937
 938 static HRESULT WINAPI HTMLDOMNode2_GetIDsOfNames(IHTMLDOMNode2 *iface, REFIID riid,
 939                                                 LPOLESTR *rgszNames, UINT cNames,
 940                                                 LCID lcid, DISPID *rgDispId)
 941 {
 942     HTMLDOMNode *This = impl_from_IHTMLDOMNode2(iface);
 943     return IDispatchEx_GetIDsOfNames(&This->dispex.IDispatchEx_iface, riid, rgszNames, cNames,
 944             lcid, rgDispId);
 945 }
 946
 947 static HRESULT WINAPI HTMLDOMNode2_Invoke(IHTMLDOMNode2 *iface, DISPID dispIdMember,
 948         REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 949         VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 950 {
 951     HTMLDOMNode *This = impl_from_IHTMLDOMNode2(iface);
 952     return IDispatchEx_Invoke(&This->dispex.IDispatchEx_iface, dispIdMember, riid, lcid,
 953             wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 954 }
 955
 956 static HRESULT WINAPI HTMLDOMNode2_get_ownerDocument(IHTMLDOMNode2 *iface, IDispatch **p)
 957 {
 958     HTMLDOMNode *This = impl_from_IHTMLDOMNode2(iface);
 959
 960     TRACE("(%p)->(%p)\n", This, p);
 961
 962     /* FIXME: Better check for document node */
 963     if(This == &This->doc->node) {
 964         *p = NULL;
 965     }else {
 966         *p = (IDispatch*)&This->doc->basedoc.IHTMLDocument2_iface;
 967         IDispatch_AddRef(*p);
 968     }
 969     return S_OK;
 970 }
 971
 972 static const IHTMLDOMNode2Vtbl HTMLDOMNode2Vtbl = {
 973     HTMLDOMNode2_QueryInterface,
 974     HTMLDOMNode2_AddRef,
 975     HTMLDOMNode2_Release,
 976     HTMLDOMNode2_GetTypeInfoCount,
 977     HTMLDOMNode2_GetTypeInfo,
 978     HTMLDOMNode2_GetIDsOfNames,
 979     HTMLDOMNode2_Invoke,
 980     HTMLDOMNode2_get_ownerDocument
 981 };
 982
 983 static nsXPCOMCycleCollectionParticipant node_ccp;
 984
 985 HRESULT HTMLDOMNode_QI(HTMLDOMNode *This, REFIID riid, void **ppv)
 986 {
 987     *ppv = NULL;
 988
 989     if(IsEqualGUID(&IID_IUnknown, riid)) {
 990         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 991         *ppv = &This->IHTMLDOMNode_iface;
 992     }else if(IsEqualGUID(&IID_IDispatch, riid)) {
 993         TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
 994         *ppv = &This->IHTMLDOMNode_iface;
 995     }else if(IsEqualGUID(&IID_IDispatchEx, riid)) {
 996         if(This->dispex.data) {
 997             TRACE("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
 998             *ppv = &This->dispex.IDispatchEx_iface;
 999         }else {
1000             FIXME("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
1001             return E_NOINTERFACE;
1002         }
1003     }else if(IsEqualGUID(&IID_IHTMLDOMNode, riid)) {
1004         TRACE("(%p)->(IID_IHTMLDOMNode %p)\n", This, ppv);
1005         *ppv = &This->IHTMLDOMNode_iface;
1006     }else if(IsEqualGUID(&IID_IHTMLDOMNode2, riid)) {
1007         TRACE("(%p)->(IID_IHTMLDOMNode2 %p)\n", This, ppv);
1008         *ppv = &This->IHTMLDOMNode2_iface;
1009     }else if(IsEqualGUID(&IID_nsXPCOMCycleCollectionParticipant, riid)) {
1010         TRACE("(%p)->(IID_nsXPCOMCycleCollectionParticipant %p)\n", This, ppv);
1011         *ppv = &node_ccp;
1012         return NS_OK;
1013     }else if(IsEqualGUID(&IID_nsCycleCollectionISupports, riid)) {
1014         TRACE("(%p)->(IID_nsCycleCollectionISupports %p)\n", This, ppv);
1015         *ppv = &This->IHTMLDOMNode_iface;
1016         return NS_OK;
1017     }else if(dispex_query_interface(&This->dispex, riid, ppv)) {
1018         return *ppv ? S_OK : E_NOINTERFACE;
1019     }
1020
1021     if(*ppv) {
1022         IUnknown_AddRef((IUnknown*)*ppv);
1023         return S_OK;
1024     }
1025
1026     WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
1027     return E_NOINTERFACE;
1028 }
1029
1030 void HTMLDOMNode_destructor(HTMLDOMNode *This)
1031 {
1032     if(This->nsnode)
1033         nsIDOMNode_Release(This->nsnode);
1034     if(This->doc && &This->doc->node != This)
1035         htmldoc_release(&This->doc->basedoc);
1036     if(This->event_target)
1037         release_event_target(This->event_target);
1038 }
1039
1040 static HRESULT HTMLDOMNode_clone(HTMLDOMNode *This, nsIDOMNode *nsnode, HTMLDOMNode **ret)
1041 {
1042     return create_node(This->doc, nsnode, ret);
1043 }
1044
1045 static const NodeImplVtbl HTMLDOMNodeImplVtbl = {
1046     HTMLDOMNode_QI,
1047     HTMLDOMNode_destructor,
1048     HTMLDOMNode_clone
1049 };
1050
1051 void HTMLDOMNode_Init(HTMLDocumentNode *doc, HTMLDOMNode *node, nsIDOMNode *nsnode)
1052 {
1053     nsresult nsres;
1054
1055     node->IHTMLDOMNode_iface.lpVtbl = &HTMLDOMNodeVtbl;
1056     node->IHTMLDOMNode2_iface.lpVtbl = &HTMLDOMNode2Vtbl;
1057
1058     ccref_init(&node->ccref, 1);
1059
1060     if(&doc->node != node)
1061         htmldoc_addref(&doc->basedoc);
1062     node->doc = doc;
1063
1064     if(nsnode)
1065         nsIDOMNode_AddRef(nsnode);
1066     node->nsnode = nsnode;
1067
1068     nsres = nsIDOMNode_SetMshtmlNode(nsnode, (nsISupports*)&node->IHTMLDOMNode_iface);
1069     assert(nsres == NS_OK);
1070 }
1071
1072 static HRESULT create_node(HTMLDocumentNode *doc, nsIDOMNode *nsnode, HTMLDOMNode **ret)
1073 {
1074     PRUint16 node_type;
1075     HRESULT hres;
1076
1077     nsIDOMNode_GetNodeType(nsnode, &node_type);
1078
1079     switch(node_type) {
1080     case ELEMENT_NODE: {
1081         HTMLElement *elem;
1082         hres = HTMLElement_Create(doc, nsnode, FALSE, &elem);
1083         if(FAILED(hres))
1084             return hres;
1085         *ret = &elem->node;
1086         break;
1087     }
1088     case TEXT_NODE:
1089         hres = HTMLDOMTextNode_Create(doc, nsnode, ret);
1090         if(FAILED(hres))
1091             return hres;
1092         break;
1093     case COMMENT_NODE: {
1094         HTMLElement *comment;
1095         hres = HTMLCommentElement_Create(doc, nsnode, &comment);
1096         if(FAILED(hres))
1097             return hres;
1098         *ret = &comment->node;
1099         break;
1100     }
1101     case ATTRIBUTE_NODE:
1102         ERR("Called on attribute node\n");
1103         return E_UNEXPECTED;
1104     default: {
1105         HTMLDOMNode *node;
1106
1107         node = heap_alloc_zero(sizeof(HTMLDOMNode));
1108         if(!node)
1109             return E_OUTOFMEMORY;
1110
1111         node->vtbl = &HTMLDOMNodeImplVtbl;
1112         HTMLDOMNode_Init(doc, node, nsnode);
1113         *ret = node;
1114     }
1115     }
1116
1117     TRACE("type %d ret %p\n", node_type, *ret);
1118     return S_OK;
1119 }
1120
1121 static void NSAPI HTMLDOMNode_unmark_if_purple(void *p)
1122 {
1123     HTMLDOMNode *This = impl_from_IHTMLDOMNode(p);
1124     ccref_unmark_if_purple(&This->ccref);
1125 }
1126
1127 static nsresult NSAPI HTMLDOMNode_traverse(void *ccp, void *p, nsCycleCollectionTraversalCallback *cb)
1128 {
1129     HTMLDOMNode *This = impl_from_IHTMLDOMNode(p);
1130
1131     TRACE("%p\n", This);
1132
1133     describe_cc_node(&This->ccref, sizeof(*This), "HTMLDOMNode", cb);
1134
1135     if(This->nsnode)
1136         note_cc_edge((nsISupports*)This->nsnode, "This->nsnode", cb);
1137     if(This->doc && &This->doc->node != This)
1138         note_cc_edge((nsISupports*)&This->doc->node.IHTMLDOMNode_iface, "This->doc", cb);
1139     dispex_traverse(&This->dispex, cb);
1140
1141     if(This->vtbl->traverse)
1142         This->vtbl->traverse(This, cb);
1143
1144     return NS_OK;
1145 }
1146
1147 static nsresult NSAPI HTMLDOMNode_unlink(void *p)
1148 {
1149     HTMLDOMNode *This = impl_from_IHTMLDOMNode(p);
1150
1151     TRACE("%p\n", This);
1152
1153     if(This->vtbl->unlink)
1154         This->vtbl->unlink(This);
1155
1156     dispex_unlink(&This->dispex);
1157
1158     if(This->nsnode) {
1159         nsIDOMNode *nsnode = This->nsnode;
1160         This->nsnode = NULL;
1161         nsIDOMNode_Release(nsnode);
1162     }
1163
1164     if(This->doc && &This->doc->node != This) {
1165         HTMLDocument *doc = &This->doc->basedoc;
1166         This->doc = NULL;
1167         htmldoc_release(doc);
1168     }else {
1169         This->doc = NULL;
1170     }
1171
1172     return NS_OK;
1173 }
1174
1175 void init_node_cc(void)
1176 {
1177     static const CCObjCallback node_ccp_callback = {
1178         HTMLDOMNode_unmark_if_purple,
1179         HTMLDOMNode_traverse,
1180         HTMLDOMNode_unlink
1181     };
1182
1183     ccp_init(&node_ccp, &node_ccp_callback);
1184 }
1185
1186 HRESULT get_node(HTMLDocumentNode *This, nsIDOMNode *nsnode, BOOL create, HTMLDOMNode **ret)
1187 {
1188     nsISupports *unk = NULL;
1189     nsresult nsres;
1190
1191     nsres = nsIDOMNode_GetMshtmlNode(nsnode, &unk);
1192     assert(nsres == NS_OK);
1193
1194     if(unk) {
1195         *ret = get_node_obj(This, (IUnknown*)unk);
1196         return NS_OK;
1197     }
1198
1199     if(!create) {
1200         *ret = NULL;
1201         return S_OK;
1202     }
1203
1204     return create_node(This, nsnode, ret);
1205 }