dlls/mshtml/mutation.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 "config.h"
  20
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "winreg.h"
  29 #include "ole2.h"
  30 #include "shlguid.h"
  31
  32 #include "mshtml_private.h"
  33 #include "htmlevent.h"
  34
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  38
  39 enum {
  40     MUTATION_BINDTOTREE,
  41     MUTATION_COMMENT,
  42     MUTATION_ENDLOAD,
  43     MUTATION_SCRIPT
  44 };
  45
  46 #define IE_MAJOR_VERSION 7
  47 #define IE_MINOR_VERSION 0
  48
  49 static BOOL handle_insert_comment(HTMLDocumentNode *doc, const PRUnichar *comment)
  50 {
  51     DWORD len;
  52     int majorv = 0, minorv = 0;
  53     const PRUnichar *ptr, *end;
  54     nsAString nsstr;
  55     PRUnichar *buf;
  56     nsresult nsres;
  57
  58     enum {
  59         CMP_EQ,
  60         CMP_LT,
  61         CMP_LTE,
  62         CMP_GT,
  63         CMP_GTE
  64     } cmpt = CMP_EQ;
  65
  66     static const PRUnichar endifW[] = {'<','!','[','e','n','d','i','f',']'};
  67
  68     if(comment[0] != '[' || comment[1] != 'i' || comment[2] != 'f')
  69         return FALSE;
  70
  71     ptr = comment+3;
  72     while(isspaceW(*ptr))
  73         ptr++;
  74
  75     if(ptr[0] == 'l' && ptr[1] == 't') {
  76         ptr += 2;
  77         if(*ptr == 'e') {
  78             cmpt = CMP_LTE;
  79             ptr++;
  80         }else {
  81             cmpt = CMP_LT;
  82         }
  83     }else if(ptr[0] == 'g' && ptr[1] == 't') {
  84         ptr += 2;
  85         if(*ptr == 'e') {
  86             cmpt = CMP_GTE;
  87             ptr++;
  88         }else {
  89             cmpt = CMP_GT;
  90         }
  91     }
  92
  93     if(!isspaceW(*ptr++))
  94         return FALSE;
  95     while(isspaceW(*ptr))
  96         ptr++;
  97
  98     if(ptr[0] != 'I' || ptr[1] != 'E')
  99         return FALSE;
 100
 101     ptr +=2;
 102     if(!isspaceW(*ptr++))
 103         return FALSE;
 104     while(isspaceW(*ptr))
 105         ptr++;
 106
 107     if(!isdigitW(*ptr))
 108         return FALSE;
 109     while(isdigitW(*ptr))
 110         majorv = majorv*10 + (*ptr++ - '0');
 111
 112     if(*ptr == '.') {
 113         ptr++;
 114         if(!isdigitW(*ptr))
 115             return FALSE;
 116         while(isdigitW(*ptr))
 117             minorv = minorv*10 + (*ptr++ - '0');
 118     }
 119
 120     while(isspaceW(*ptr))
 121         ptr++;
 122     if(ptr[0] != ']' || ptr[1] != '>')
 123         return FALSE;
 124     ptr += 2;
 125
 126     len = strlenW(ptr);
 127     if(len < sizeof(endifW)/sizeof(WCHAR))
 128         return FALSE;
 129
 130     end = ptr + len-sizeof(endifW)/sizeof(WCHAR);
 131     if(memcmp(end, endifW, sizeof(endifW)))
 132         return FALSE;
 133
 134     switch(cmpt) {
 135     case CMP_EQ:
 136         if(majorv == IE_MAJOR_VERSION && minorv == IE_MINOR_VERSION)
 137             break;
 138         return FALSE;
 139     case CMP_LT:
 140         if(majorv > IE_MAJOR_VERSION)
 141             break;
 142         if(majorv == IE_MAJOR_VERSION && minorv > IE_MINOR_VERSION)
 143             break;
 144         return FALSE;
 145     case CMP_LTE:
 146         if(majorv > IE_MAJOR_VERSION)
 147             break;
 148         if(majorv == IE_MAJOR_VERSION && minorv >= IE_MINOR_VERSION)
 149             break;
 150         return FALSE;
 151     case CMP_GT:
 152         if(majorv < IE_MAJOR_VERSION)
 153             break;
 154         if(majorv == IE_MAJOR_VERSION && minorv < IE_MINOR_VERSION)
 155             break;
 156         return FALSE;
 157     case CMP_GTE:
 158         if(majorv < IE_MAJOR_VERSION)
 159             break;
 160         if(majorv == IE_MAJOR_VERSION && minorv <= IE_MINOR_VERSION)
 161             break;
 162         return FALSE;
 163     }
 164
 165     buf = heap_alloc((end-ptr+1)*sizeof(WCHAR));
 166     if(!buf)
 167         return FALSE;
 168
 169     memcpy(buf, ptr, (end-ptr)*sizeof(WCHAR));
 170     buf[end-ptr] = 0;
 171     nsAString_InitDepend(&nsstr, buf);
 172
 173     /* FIXME: Find better way to insert HTML to document. */
 174     nsres = nsIDOMHTMLDocument_Write(doc->nsdoc, &nsstr);
 175     nsAString_Finish(&nsstr);
 176     heap_free(buf);
 177     if(NS_FAILED(nsres)) {
 178         ERR("Write failed: %08x\n", nsres);
 179         return FALSE;
 180     }
 181
 182     return TRUE;
 183 }
 184
 185 static void add_script_runner(HTMLDocumentNode *This)
 186 {
 187     nsIDOMNSDocument *nsdoc;
 188     nsresult nsres;
 189
 190     nsres = nsIDOMHTMLDocument_QueryInterface(This->nsdoc, &IID_nsIDOMNSDocument, (void**)&nsdoc);
 191     if(NS_FAILED(nsres)) {
 192         ERR("Could not get nsIDOMNSDocument: %08x\n", nsres);
 193         return;
 194     }
 195
 196     nsIDOMNSDocument_WineAddScriptRunner(nsdoc, NSRUNNABLE(This));
 197     nsIDOMNSDocument_Release(nsdoc);
 198 }
 199
 200 #define NSRUNNABLE_THIS(iface) DEFINE_THIS(HTMLDocumentNode, IRunnable, iface)
 201
 202 static nsresult NSAPI nsRunnable_QueryInterface(nsIRunnable *iface,
 203         nsIIDRef riid, void **result)
 204 {
 205     HTMLDocumentNode *This = NSRUNNABLE_THIS(iface);
 206
 207     if(IsEqualGUID(riid, &IID_nsISupports)) {
 208         TRACE("(%p)->(IID_nsISupports %p)\n", This, result);
 209         *result = NSRUNNABLE(This);
 210     }else if(IsEqualGUID(riid, &IID_nsIRunnable)) {
 211         TRACE("(%p)->(IID_nsIRunnable %p)\n", This, result);
 212         *result = NSRUNNABLE(This);
 213     }else {
 214         *result = NULL;
 215         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), result);
 216         return NS_NOINTERFACE;
 217     }
 218
 219     nsISupports_AddRef((nsISupports*)*result);
 220     return NS_OK;
 221 }
 222
 223 static nsrefcnt NSAPI nsRunnable_AddRef(nsIRunnable *iface)
 224 {
 225     HTMLDocumentNode *This = NSRUNNABLE_THIS(iface);
 226     return htmldoc_addref(&This->basedoc);
 227 }
 228
 229 static nsrefcnt NSAPI nsRunnable_Release(nsIRunnable *iface)
 230 {
 231     HTMLDocumentNode *This = NSRUNNABLE_THIS(iface);
 232     return htmldoc_release(&This->basedoc);
 233 }
 234
 235 static void push_mutation_queue(HTMLDocumentNode *doc, DWORD type, nsISupports *nsiface)
 236 {
 237     mutation_queue_t *elem;
 238
 239     elem = heap_alloc(sizeof(mutation_queue_t));
 240     if(!elem)
 241         return;
 242
 243     elem->next = NULL;
 244     elem->type = type;
 245     elem->nsiface = nsiface;
 246     if(nsiface)
 247         nsISupports_AddRef(nsiface);
 248
 249     if(doc->mutation_queue_tail) {
 250         doc->mutation_queue_tail = doc->mutation_queue_tail->next = elem;
 251     }else {
 252         doc->mutation_queue = doc->mutation_queue_tail = elem;
 253         add_script_runner(doc);
 254     }
 255 }
 256
 257 static void pop_mutation_queue(HTMLDocumentNode *doc)
 258 {
 259     mutation_queue_t *tmp = doc->mutation_queue;
 260
 261     if(!tmp)
 262         return;
 263
 264     doc->mutation_queue = tmp->next;
 265     if(!tmp->next)
 266         doc->mutation_queue_tail = NULL;
 267
 268     if(tmp->nsiface)
 269         nsISupports_Release(tmp->nsiface);
 270     heap_free(tmp);
 271 }
 272
 273 static void bind_to_tree(HTMLDocumentNode *doc, nsISupports *nsiface)
 274 {
 275     nsIDOMNode *nsnode;
 276     HTMLDOMNode *node;
 277     nsresult nsres;
 278
 279     nsres = nsISupports_QueryInterface(nsiface, &IID_nsIDOMNode, (void**)&nsnode);
 280     if(NS_FAILED(nsres))
 281         return;
 282
 283     node = get_node(doc, nsnode, TRUE);
 284     nsIDOMNode_Release(nsnode);
 285     if(!node) {
 286         ERR("Could not get node\n");
 287         return;
 288     }
 289
 290     if(node->vtbl->bind_to_tree)
 291         node->vtbl->bind_to_tree(node);
 292 }
 293
 294 /* Calls undocumented 69 cmd of CGID_Explorer */
 295 static void call_explorer_69(HTMLDocumentObj *doc)
 296 {
 297     IOleCommandTarget *olecmd;
 298     VARIANT var;
 299     HRESULT hres;
 300
 301     if(!doc->client)
 302         return;
 303
 304     hres = IOleClientSite_QueryInterface(doc->client, &IID_IOleCommandTarget, (void**)&olecmd);
 305     if(FAILED(hres))
 306         return;
 307
 308     VariantInit(&var);
 309     hres = IOleCommandTarget_Exec(olecmd, &CGID_Explorer, 69, 0, NULL, &var);
 310     IOleCommandTarget_Release(olecmd);
 311     if(SUCCEEDED(hres) && V_VT(&var) != VT_NULL)
 312         FIXME("handle result\n");
 313 }
 314
 315 static void parse_complete(HTMLDocumentObj *doc)
 316 {
 317     TRACE("(%p)\n", doc);
 318
 319     if(doc->usermode == EDITMODE)
 320         init_editor(&doc->basedoc);
 321
 322     call_explorer_69(doc);
 323     if(doc->view_sink)
 324         IAdviseSink_OnViewChange(doc->view_sink, DVASPECT_CONTENT, -1);
 325     call_property_onchanged(&doc->basedoc.cp_propnotif, 1005);
 326     call_explorer_69(doc);
 327
 328     /* FIXME: IE7 calls EnableModelless(TRUE), EnableModelless(FALSE) and sets interactive state here */
 329 }
 330
 331 static void handle_end_load(HTMLDocumentNode *This)
 332 {
 333     TRACE("\n");
 334
 335     if(!This->basedoc.doc_obj)
 336         return;
 337
 338     if(This == This->basedoc.doc_obj->basedoc.doc_node) {
 339         /*
 340          * This should be done in the worker thread that parses HTML,
 341          * but we don't have such thread (Gecko parses HTML for us).
 342          */
 343         parse_complete(This->basedoc.doc_obj);
 344     }
 345
 346     set_ready_state(This->basedoc.window, READYSTATE_INTERACTIVE);
 347 }
 348
 349 static nsresult NSAPI nsRunnable_Run(nsIRunnable *iface)
 350 {
 351     HTMLDocumentNode *This = NSRUNNABLE_THIS(iface);
 352     nsresult nsres;
 353
 354     TRACE("(%p)\n", This);
 355
 356     while(This->mutation_queue) {
 357         switch(This->mutation_queue->type) {
 358         case MUTATION_BINDTOTREE:
 359             bind_to_tree(This, This->mutation_queue->nsiface);
 360             break;
 361
 362         case MUTATION_COMMENT: {
 363             nsIDOMComment *nscomment;
 364             nsAString comment_str;
 365             BOOL remove_comment = FALSE;
 366
 367             nsres = nsISupports_QueryInterface(This->mutation_queue->nsiface, &IID_nsIDOMComment, (void**)&nscomment);
 368             if(NS_FAILED(nsres)) {
 369                 ERR("Could not get nsIDOMComment iface:%08x\n", nsres);
 370                 return NS_OK;
 371             }
 372
 373             nsAString_Init(&comment_str, NULL);
 374             nsres = nsIDOMComment_GetData(nscomment, &comment_str);
 375             if(NS_SUCCEEDED(nsres)) {
 376                 const PRUnichar *comment;
 377
 378                 nsAString_GetData(&comment_str, &comment);
 379                 remove_comment = handle_insert_comment(This, comment);
 380             }
 381
 382             nsAString_Finish(&comment_str);
 383
 384             if(remove_comment) {
 385                 nsIDOMNode *nsparent, *tmp;
 386                 nsAString magic_str;
 387
 388                 static const PRUnichar remove_comment_magicW[] =
 389                     {'#','!','w','i','n','e', 'r','e','m','o','v','e','!','#',0};
 390
 391                 nsAString_InitDepend(&magic_str, remove_comment_magicW);
 392                 nsres = nsIDOMComment_SetData(nscomment, &magic_str);
 393                 nsAString_Finish(&magic_str);
 394                 if(NS_FAILED(nsres))
 395                     ERR("SetData failed: %08x\n", nsres);
 396
 397                 nsIDOMComment_GetParentNode(nscomment, &nsparent);
 398                 if(nsparent) {
 399                     nsIDOMNode_RemoveChild(nsparent, (nsIDOMNode*)nscomment, &tmp);
 400                     nsIDOMNode_Release(nsparent);
 401                     nsIDOMNode_Release(tmp);
 402                 }
 403             }
 404
 405             nsIDOMComment_Release(nscomment);
 406             break;
 407         }
 408
 409         case MUTATION_ENDLOAD:
 410             handle_end_load(This);
 411             break;
 412
 413         case MUTATION_SCRIPT: {
 414             nsIDOMHTMLScriptElement *nsscript;
 415
 416             nsres = nsISupports_QueryInterface(This->mutation_queue->nsiface, &IID_nsIDOMHTMLScriptElement,
 417                                                (void**)&nsscript);
 418             if(NS_FAILED(nsres)) {
 419                 ERR("Could not get nsIDOMHTMLScriptElement: %08x\n", nsres);
 420                 break;
 421             }
 422
 423             doc_insert_script(This->basedoc.window, nsscript);
 424             nsIDOMHTMLScriptElement_Release(nsscript);
 425             break;
 426         }
 427
 428         default:
 429             ERR("invalid type %d\n", This->mutation_queue->type);
 430         }
 431
 432         pop_mutation_queue(This);
 433     }
 434
 435     return S_OK;
 436 }
 437
 438 #undef NSRUNNABLE_THIS
 439
 440 static const nsIRunnableVtbl nsRunnableVtbl = {
 441     nsRunnable_QueryInterface,
 442     nsRunnable_AddRef,
 443     nsRunnable_Release,
 444     nsRunnable_Run
 445 };
 446
 447 #define NSDOCOBS_THIS(iface) DEFINE_THIS(HTMLDocumentNode, IDocumentObserver, iface)
 448
 449 static nsresult NSAPI nsDocumentObserver_QueryInterface(nsIDocumentObserver *iface,
 450         nsIIDRef riid, void **result)
 451 {
 452     HTMLDocumentNode *This = NSDOCOBS_THIS(iface);
 453
 454     if(IsEqualGUID(&IID_nsISupports, riid)) {
 455         TRACE("(%p)->(IID_nsISupports, %p)\n", This, result);
 456         *result = NSDOCOBS(This);
 457     }else if(IsEqualGUID(&IID_nsIMutationObserver, riid)) {
 458         TRACE("(%p)->(IID_nsIMutationObserver %p)\n", This, result);
 459         *result = NSDOCOBS(This);
 460     }else if(IsEqualGUID(&IID_nsIDocumentObserver, riid)) {
 461         TRACE("(%p)->(IID_nsIDocumentObserver %p)\n", This, result);
 462         *result = NSDOCOBS(This);
 463     }else {
 464         *result = NULL;
 465         TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), result);
 466         return NS_NOINTERFACE;
 467     }
 468
 469     htmldoc_addref(&This->basedoc);
 470     return NS_OK;
 471 }
 472
 473 static nsrefcnt NSAPI nsDocumentObserver_AddRef(nsIDocumentObserver *iface)
 474 {
 475     HTMLDocumentNode *This = NSDOCOBS_THIS(iface);
 476     return htmldoc_addref(&This->basedoc);
 477 }
 478
 479 static nsrefcnt NSAPI nsDocumentObserver_Release(nsIDocumentObserver *iface)
 480 {
 481     HTMLDocumentNode *This = NSDOCOBS_THIS(iface);
 482     return htmldoc_release(&This->basedoc);
 483 }
 484
 485 static void NSAPI nsDocumentObserver_CharacterDataWillChange(nsIDocumentObserver *iface,
 486         nsIDocument *aDocument, nsIContent *aContent, void /*CharacterDataChangeInfo*/ *aInfo)
 487 {
 488 }
 489
 490 static void NSAPI nsDocumentObserver_CharacterDataChanged(nsIDocumentObserver *iface,
 491         nsIDocument *aDocument, nsIContent *aContent, void /*CharacterDataChangeInfo*/ *aInfo)
 492 {
 493 }
 494
 495 static void NSAPI nsDocumentObserver_AttributeWillChange(nsIDocumentObserver *iface, nsIDocument *aDocument,
 496         nsIContent *aContent, PRInt32 aNameSpaceID, nsIAtom *aAttribute, PRInt32 aModType)
 497 {
 498 }
 499
 500 static void NSAPI nsDocumentObserver_AttributeChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 501         nsIContent *aContent, PRInt32 aNameSpaceID, nsIAtom *aAttribute, PRInt32 aModType)
 502 {
 503 }
 504
 505 static void NSAPI nsDocumentObserver_ContentAppended(nsIDocumentObserver *iface, nsIDocument *aDocument,
 506         nsIContent *aContainer, nsIContent *aFirstNewContent, PRInt32 aNewIndexInContainer)
 507 {
 508 }
 509
 510 static void NSAPI nsDocumentObserver_ContentInserted(nsIDocumentObserver *iface, nsIDocument *aDocument,
 511         nsIContent *aContainer, nsIContent *aChild, PRInt32 aIndexInContainer)
 512 {
 513 }
 514
 515 static void NSAPI nsDocumentObserver_ContentRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 516         nsIContent *aContainer, nsIContent *aChild, PRInt32 aIndexInContainer,
 517         nsIContent *aProviousSibling)
 518 {
 519 }
 520
 521 static void NSAPI nsDocumentObserver_NodeWillBeDestroyed(nsIDocumentObserver *iface, const nsINode *aNode)
 522 {
 523 }
 524
 525 static void NSAPI nsDocumentObserver_ParentChainChanged(nsIDocumentObserver *iface, nsIContent *aContent)
 526 {
 527 }
 528
 529 static void NSAPI nsDocumentObserver_BeginUpdate(nsIDocumentObserver *iface, nsIDocument *aDocument,
 530         nsUpdateType aUpdateType)
 531 {
 532 }
 533
 534 static void NSAPI nsDocumentObserver_EndUpdate(nsIDocumentObserver *iface, nsIDocument *aDocument,
 535         nsUpdateType aUpdateType)
 536 {
 537 }
 538
 539 static void NSAPI nsDocumentObserver_BeginLoad(nsIDocumentObserver *iface, nsIDocument *aDocument)
 540 {
 541 }
 542
 543 static void NSAPI nsDocumentObserver_EndLoad(nsIDocumentObserver *iface, nsIDocument *aDocument)
 544 {
 545     HTMLDocumentNode *This = NSDOCOBS_THIS(iface);
 546
 547     TRACE("\n");
 548
 549     if(This->skip_mutation_notif)
 550         return;
 551
 552     This->content_ready = TRUE;
 553     push_mutation_queue(This, MUTATION_ENDLOAD, NULL);
 554 }
 555
 556 static void NSAPI nsDocumentObserver_ContentStatesChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 557         nsIContent *aContent1, nsIContent *aContent2, PRInt32 aStateMask)
 558 {
 559 }
 560
 561 static void NSAPI nsDocumentObserver_DocumentStatesChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 562         PRInt32 aStateMask)
 563 {
 564 }
 565
 566 static void NSAPI nsDocumentObserver_StyleSheetAdded(nsIDocumentObserver *iface, nsIDocument *aDocument,
 567         nsIStyleSheet *aStyleSheet, PRBool aDocumentSheet)
 568 {
 569 }
 570
 571 static void NSAPI nsDocumentObserver_StyleSheetRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 572         nsIStyleSheet *aStyleSheet, PRBool aDocumentSheet)
 573 {
 574 }
 575
 576 static void NSAPI nsDocumentObserver_StyleSheetApplicableStateChanged(nsIDocumentObserver *iface,
 577         nsIDocument *aDocument, nsIStyleSheet *aStyleSheet, PRBool aApplicable)
 578 {
 579 }
 580
 581 static void NSAPI nsDocumentObserver_StyleRuleChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 582         nsIStyleSheet *aStyleSheet, nsIStyleRule *aOldStyleRule, nsIStyleSheet *aNewStyleRule)
 583 {
 584 }
 585
 586 static void NSAPI nsDocumentObserver_StyleRuleAdded(nsIDocumentObserver *iface, nsIDocument *aDocument,
 587         nsIStyleSheet *aStyleSheet, nsIStyleRule *aStyleRule)
 588 {
 589 }
 590
 591 static void NSAPI nsDocumentObserver_StyleRuleRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 592         nsIStyleSheet *aStyleSheet, nsIStyleRule *aStyleRule)
 593 {
 594 }
 595
 596 static void NSAPI nsDocumentObserver_BindToDocument(nsIDocumentObserver *iface, nsIDocument *aDocument,
 597         nsIContent *aContent)
 598 {
 599     HTMLDocumentNode *This = NSDOCOBS_THIS(iface);
 600     nsIDOMHTMLIFrameElement *nsiframe;
 601     nsIDOMHTMLFrameElement *nsframe;
 602     nsIDOMComment *nscomment;
 603     nsIDOMElement *nselem;
 604     nsresult nsres;
 605
 606     TRACE("(%p)\n", This);
 607
 608     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMElement, (void**)&nselem);
 609     if(NS_SUCCEEDED(nsres)) {
 610         check_event_attr(This, nselem);
 611         nsIDOMElement_Release(nselem);
 612     }
 613
 614     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMComment, (void**)&nscomment);
 615     if(NS_SUCCEEDED(nsres)) {
 616         TRACE("comment node\n");
 617
 618         push_mutation_queue(This, MUTATION_COMMENT, (nsISupports*)nscomment);
 619         nsIDOMComment_Release(nscomment);
 620     }
 621
 622     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLIFrameElement, (void**)&nsiframe);
 623     if(NS_SUCCEEDED(nsres)) {
 624         TRACE("iframe node\n");
 625
 626         push_mutation_queue(This, MUTATION_BINDTOTREE, (nsISupports*)nsiframe);
 627         nsIDOMHTMLIFrameElement_Release(nsiframe);
 628     }
 629
 630     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLFrameElement, (void**)&nsframe);
 631     if(NS_SUCCEEDED(nsres)) {
 632         TRACE("frame node\n");
 633
 634         push_mutation_queue(This, MUTATION_BINDTOTREE, (nsISupports*)nsframe);
 635         nsIDOMHTMLFrameElement_Release(nsframe);
 636     }
 637 }
 638
 639 static void NSAPI nsDocumentObserver_DoneAddingChildren(nsIDocumentObserver *iface, nsIContent *aContent,
 640         PRBool aHaveNotified)
 641 {
 642     HTMLDocumentNode *This = NSDOCOBS_THIS(iface);
 643     nsIDOMHTMLScriptElement *nsscript;
 644     nsresult nsres;
 645
 646     TRACE("(%p)->(%p %x)\n", This, aContent, aHaveNotified);
 647
 648     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLScriptElement, (void**)&nsscript);
 649     if(NS_SUCCEEDED(nsres)) {
 650         TRACE("script node\n");
 651
 652         push_mutation_queue(This, MUTATION_SCRIPT, (nsISupports*)nsscript);
 653         nsIDOMHTMLScriptElement_Release(nsscript);
 654     }
 655 }
 656
 657 #undef NSMUTATIONOBS_THIS
 658
 659 static const nsIDocumentObserverVtbl nsDocumentObserverVtbl = {
 660     nsDocumentObserver_QueryInterface,
 661     nsDocumentObserver_AddRef,
 662     nsDocumentObserver_Release,
 663     nsDocumentObserver_CharacterDataWillChange,
 664     nsDocumentObserver_CharacterDataChanged,
 665     nsDocumentObserver_AttributeWillChange,
 666     nsDocumentObserver_AttributeChanged,
 667     nsDocumentObserver_ContentAppended,
 668     nsDocumentObserver_ContentInserted,
 669     nsDocumentObserver_ContentRemoved,
 670     nsDocumentObserver_NodeWillBeDestroyed,
 671     nsDocumentObserver_ParentChainChanged,
 672     nsDocumentObserver_BeginUpdate,
 673     nsDocumentObserver_EndUpdate,
 674     nsDocumentObserver_BeginLoad,
 675     nsDocumentObserver_EndLoad,
 676     nsDocumentObserver_ContentStatesChanged,
 677     nsDocumentObserver_DocumentStatesChanged,
 678     nsDocumentObserver_StyleSheetAdded,
 679     nsDocumentObserver_StyleSheetRemoved,
 680     nsDocumentObserver_StyleSheetApplicableStateChanged,
 681     nsDocumentObserver_StyleRuleChanged,
 682     nsDocumentObserver_StyleRuleAdded,
 683     nsDocumentObserver_StyleRuleRemoved,
 684     nsDocumentObserver_BindToDocument,
 685     nsDocumentObserver_DoneAddingChildren
 686 };
 687
 688 void init_mutation(HTMLDocumentNode *doc)
 689 {
 690     nsIDOMNSDocument *nsdoc;
 691     nsresult nsres;
 692
 693     doc->lpIDocumentObserverVtbl  = &nsDocumentObserverVtbl;
 694     doc->lpIRunnableVtbl          = &nsRunnableVtbl;
 695
 696     nsres = nsIDOMHTMLDocument_QueryInterface(doc->nsdoc, &IID_nsIDOMNSDocument, (void**)&nsdoc);
 697     if(NS_FAILED(nsres)) {
 698         ERR("Could not get nsIDOMNSDocument: %08x\n", nsres);
 699         return;
 700     }
 701
 702     nsIDOMNSDocument_WineAddObserver(nsdoc, NSDOCOBS(doc));
 703     nsIDOMNSDocument_Release(nsdoc);
 704 }
 705
 706 void release_mutation(HTMLDocumentNode *doc)
 707 {
 708     nsIDOMNSDocument *nsdoc;
 709     nsresult nsres;
 710
 711     nsres = nsIDOMHTMLDocument_QueryInterface(doc->nsdoc, &IID_nsIDOMNSDocument, (void**)&nsdoc);
 712     if(NS_FAILED(nsres)) {
 713         ERR("Could not get nsIDOMNSDocument: %08x\n", nsres);
 714         return;
 715     }
 716
 717     nsIDOMNSDocument_WineRemoveObserver(nsdoc, NSDOCOBS(doc));
 718     nsIDOMNSDocument_Release(nsdoc);
 719 }