dll/win32/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, nsQIResult 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_proc(task_t *task)
 316 {
 317     HTMLDocumentObj *doc = ((docobj_task_t*)task)->doc;
 318
 319     TRACE("(%p)\n", doc);
 320
 321     if(doc->usermode == EDITMODE)
 322         init_editor(&doc->basedoc);
 323
 324     call_explorer_69(doc);
 325     if(doc->view_sink)
 326         IAdviseSink_OnViewChange(doc->view_sink, DVASPECT_CONTENT, -1);
 327     call_property_onchanged(&doc->basedoc.cp_propnotif, 1005);
 328     call_explorer_69(doc);
 329
 330     /* FIXME: IE7 calls EnableModelless(TRUE), EnableModelless(FALSE) and sets interactive state here */
 331
 332     set_ready_state(doc->basedoc.window, READYSTATE_INTERACTIVE);
 333 }
 334
 335 static void handle_end_load(HTMLDocumentNode *This)
 336 {
 337     docobj_task_t *task;
 338
 339     TRACE("\n");
 340
 341     if(!This->basedoc.doc_obj)
 342         return;
 343
 344     if(This != This->basedoc.doc_obj->basedoc.doc_node) {
 345         set_ready_state(This->basedoc.window, READYSTATE_INTERACTIVE);
 346         return;
 347     }
 348
 349     task = heap_alloc(sizeof(docobj_task_t));
 350     if(!task)
 351         return;
 352
 353     task->doc = This->basedoc.doc_obj;
 354
 355     /*
 356      * This should be done in the worker thread that parses HTML,
 357      * but we don't have such thread (Gecko parses HTML for us).
 358      */
 359     push_task(&task->header, &parse_complete_proc, This->basedoc.doc_obj->basedoc.task_magic);
 360 }
 361
 362 static nsresult NSAPI nsRunnable_Run(nsIRunnable *iface)
 363 {
 364     HTMLDocumentNode *This = NSRUNNABLE_THIS(iface);
 365     nsresult nsres;
 366
 367     TRACE("(%p)\n", This);
 368
 369     while(This->mutation_queue) {
 370         switch(This->mutation_queue->type) {
 371         case MUTATION_BINDTOTREE:
 372             bind_to_tree(This, This->mutation_queue->nsiface);
 373             break;
 374
 375         case MUTATION_COMMENT: {
 376             nsIDOMComment *nscomment;
 377             nsAString comment_str;
 378             BOOL remove_comment = FALSE;
 379
 380             nsres = nsISupports_QueryInterface(This->mutation_queue->nsiface, &IID_nsIDOMComment, (void**)&nscomment);
 381             if(NS_FAILED(nsres)) {
 382                 ERR("Could not get nsIDOMComment iface:%08x\n", nsres);
 383                 return NS_OK;
 384             }
 385
 386             nsAString_Init(&comment_str, NULL);
 387             nsres = nsIDOMComment_GetData(nscomment, &comment_str);
 388             if(NS_SUCCEEDED(nsres)) {
 389                 const PRUnichar *comment;
 390
 391                 nsAString_GetData(&comment_str, &comment);
 392                 remove_comment = handle_insert_comment(This, comment);
 393             }
 394
 395             nsAString_Finish(&comment_str);
 396
 397             if(remove_comment) {
 398                 nsIDOMNode *nsparent, *tmp;
 399                 nsAString magic_str;
 400
 401                 static const PRUnichar remove_comment_magicW[] =
 402                     {'#','!','w','i','n','e', 'r','e','m','o','v','e','!','#',0};
 403
 404                 nsAString_InitDepend(&magic_str, remove_comment_magicW);
 405                 nsres = nsIDOMComment_SetData(nscomment, &magic_str);
 406                 nsAString_Finish(&magic_str);
 407                 if(NS_FAILED(nsres))
 408                     ERR("SetData failed: %08x\n", nsres);
 409
 410                 nsIDOMComment_GetParentNode(nscomment, &nsparent);
 411                 if(nsparent) {
 412                     nsIDOMNode_RemoveChild(nsparent, (nsIDOMNode*)nscomment, &tmp);
 413                     nsIDOMNode_Release(nsparent);
 414                     nsIDOMNode_Release(tmp);
 415                 }
 416             }
 417
 418             nsIDOMComment_Release(nscomment);
 419             break;
 420         }
 421
 422         case MUTATION_ENDLOAD:
 423             handle_end_load(This);
 424             break;
 425
 426         case MUTATION_SCRIPT: {
 427             nsIDOMHTMLScriptElement *nsscript;
 428
 429             nsres = nsISupports_QueryInterface(This->mutation_queue->nsiface, &IID_nsIDOMHTMLScriptElement,
 430                                                (void**)&nsscript);
 431             if(NS_FAILED(nsres)) {
 432                 ERR("Could not get nsIDOMHTMLScriptElement: %08x\n", nsres);
 433                 break;
 434             }
 435
 436             doc_insert_script(This->basedoc.window, nsscript);
 437             nsIDOMHTMLScriptElement_Release(nsscript);
 438             break;
 439         }
 440
 441         default:
 442             ERR("invalid type %d\n", This->mutation_queue->type);
 443         }
 444
 445         pop_mutation_queue(This);
 446     }
 447
 448     return S_OK;
 449 }
 450
 451 #undef NSRUNNABLE_THIS
 452
 453 static const nsIRunnableVtbl nsRunnableVtbl = {
 454     nsRunnable_QueryInterface,
 455     nsRunnable_AddRef,
 456     nsRunnable_Release,
 457     nsRunnable_Run
 458 };
 459
 460 #define NSDOCOBS_THIS(iface) DEFINE_THIS(HTMLDocumentNode, IDocumentObserver, iface)
 461
 462 static nsresult NSAPI nsDocumentObserver_QueryInterface(nsIDocumentObserver *iface,
 463         nsIIDRef riid, nsQIResult result)
 464 {
 465     HTMLDocumentNode *This = NSDOCOBS_THIS(iface);
 466
 467     if(IsEqualGUID(&IID_nsISupports, riid)) {
 468         TRACE("(%p)->(IID_nsISupports, %p)\n", This, result);
 469         *result = NSDOCOBS(This);
 470     }else if(IsEqualGUID(&IID_nsIMutationObserver, riid)) {
 471         TRACE("(%p)->(IID_nsIMutationObserver %p)\n", This, result);
 472         *result = NSDOCOBS(This);
 473     }else if(IsEqualGUID(&IID_nsIDocumentObserver, riid)) {
 474         TRACE("(%p)->(IID_nsIDocumentObserver %p)\n", This, result);
 475         *result = NSDOCOBS(This);
 476     }else {
 477         *result = NULL;
 478         TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), result);
 479         return NS_NOINTERFACE;
 480     }
 481
 482     htmldoc_addref(&This->basedoc);
 483     return NS_OK;
 484 }
 485
 486 static nsrefcnt NSAPI nsDocumentObserver_AddRef(nsIDocumentObserver *iface)
 487 {
 488     HTMLDocumentNode *This = NSDOCOBS_THIS(iface);
 489     return htmldoc_addref(&This->basedoc);
 490 }
 491
 492 static nsrefcnt NSAPI nsDocumentObserver_Release(nsIDocumentObserver *iface)
 493 {
 494     HTMLDocumentNode *This = NSDOCOBS_THIS(iface);
 495     return htmldoc_release(&This->basedoc);
 496 }
 497
 498 static void NSAPI nsDocumentObserver_CharacterDataWillChange(nsIDocumentObserver *iface,
 499         nsIDocument *aDocument, nsIContent *aContent, void /*CharacterDataChangeInfo*/ *aInfo)
 500 {
 501 }
 502
 503 static void NSAPI nsDocumentObserver_CharacterDataChanged(nsIDocumentObserver *iface,
 504         nsIDocument *aDocument, nsIContent *aContent, void /*CharacterDataChangeInfo*/ *aInfo)
 505 {
 506 }
 507
 508 static void NSAPI nsDocumentObserver_AttributeWillChange(nsIDocumentObserver *iface, nsIDocument *aDocument,
 509         nsIContent *aContent, PRInt32 aNameSpaceID, nsIAtom *aAttribute, PRInt32 aModType)
 510 {
 511 }
 512
 513 static void NSAPI nsDocumentObserver_AttributeChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 514         nsIContent *aContent, PRInt32 aNameSpaceID, nsIAtom *aAttribute, PRInt32 aModType, PRUint32 aStateMask)
 515 {
 516 }
 517
 518 static void NSAPI nsDocumentObserver_ContentAppended(nsIDocumentObserver *iface, nsIDocument *aDocument,
 519         nsIContent *aContainer, PRInt32 aNewIndexInContainer)
 520 {
 521 }
 522
 523 static void NSAPI nsDocumentObserver_ContentInserted(nsIDocumentObserver *iface, nsIDocument *aDocument,
 524         nsIContent *aContainer, nsIContent *aChild, PRInt32 aIndexInContainer)
 525 {
 526 }
 527
 528 static void NSAPI nsDocumentObserver_ContentRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 529         nsIContent *aContainer, nsIContent *aChild, PRInt32 aIndexInContainer)
 530 {
 531 }
 532
 533 static void NSAPI nsDocumentObserver_NodeWillBeDestroyed(nsIDocumentObserver *iface, const nsINode *aNode)
 534 {
 535 }
 536
 537 static void NSAPI nsDocumentObserver_ParentChainChanged(nsIDocumentObserver *iface, nsIContent *aContent)
 538 {
 539 }
 540
 541 static void NSAPI nsDocumentObserver_BeginUpdate(nsIDocumentObserver *iface, nsIDocument *aDocument,
 542         nsUpdateType aUpdateType)
 543 {
 544 }
 545
 546 static void NSAPI nsDocumentObserver_EndUpdate(nsIDocumentObserver *iface, nsIDocument *aDocument,
 547         nsUpdateType aUpdateType)
 548 {
 549 }
 550
 551 static void NSAPI nsDocumentObserver_BeginLoad(nsIDocumentObserver *iface, nsIDocument *aDocument)
 552 {
 553 }
 554
 555 static void NSAPI nsDocumentObserver_EndLoad(nsIDocumentObserver *iface, nsIDocument *aDocument)
 556 {
 557     HTMLDocumentNode *This = NSDOCOBS_THIS(iface);
 558
 559     TRACE("\n");
 560
 561     This->content_ready = TRUE;
 562     push_mutation_queue(This, MUTATION_ENDLOAD, NULL);
 563 }
 564
 565 static void NSAPI nsDocumentObserver_ContentStatesChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 566         nsIContent *aContent1, nsIContent *aContent2, PRInt32 aStateMask)
 567 {
 568 }
 569
 570 static void NSAPI nsDocumentObserver_StyleSheetAdded(nsIDocumentObserver *iface, nsIDocument *aDocument,
 571         nsIStyleSheet *aStyleSheet, PRBool aDocumentSheet)
 572 {
 573 }
 574
 575 static void NSAPI nsDocumentObserver_StyleSheetRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 576         nsIStyleSheet *aStyleSheet, PRBool aDocumentSheet)
 577 {
 578 }
 579
 580 static void NSAPI nsDocumentObserver_StyleSheetApplicableStateChanged(nsIDocumentObserver *iface,
 581         nsIDocument *aDocument, nsIStyleSheet *aStyleSheet, PRBool aApplicable)
 582 {
 583 }
 584
 585 static void NSAPI nsDocumentObserver_StyleRuleChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 586         nsIStyleSheet *aStyleSheet, nsIStyleRule *aOldStyleRule, nsIStyleSheet *aNewStyleRule)
 587 {
 588 }
 589
 590 static void NSAPI nsDocumentObserver_StyleRuleAdded(nsIDocumentObserver *iface, nsIDocument *aDocument,
 591         nsIStyleSheet *aStyleSheet, nsIStyleRule *aStyleRule)
 592 {
 593 }
 594
 595 static void NSAPI nsDocumentObserver_StyleRuleRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 596         nsIStyleSheet *aStyleSheet, nsIStyleRule *aStyleRule)
 597 {
 598 }
 599
 600 static void NSAPI nsDocumentObserver_BindToDocument(nsIDocumentObserver *iface, nsIDocument *aDocument,
 601         nsIContent *aContent)
 602 {
 603     HTMLDocumentNode *This = NSDOCOBS_THIS(iface);
 604     nsIDOMHTMLIFrameElement *nsiframe;
 605     nsIDOMHTMLFrameElement *nsframe;
 606     nsIDOMComment *nscomment;
 607     nsIDOMElement *nselem;
 608     nsresult nsres;
 609
 610     TRACE("(%p)\n", This);
 611
 612     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMElement, (void**)&nselem);
 613     if(NS_SUCCEEDED(nsres)) {
 614         check_event_attr(This, nselem);
 615         nsIDOMElement_Release(nselem);
 616     }
 617
 618     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMComment, (void**)&nscomment);
 619     if(NS_SUCCEEDED(nsres)) {
 620         TRACE("comment node\n");
 621
 622         push_mutation_queue(This, MUTATION_COMMENT, (nsISupports*)nscomment);
 623         nsIDOMComment_Release(nscomment);
 624     }
 625
 626     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLIFrameElement, (void**)&nsiframe);
 627     if(NS_SUCCEEDED(nsres)) {
 628         TRACE("iframe node\n");
 629
 630         push_mutation_queue(This, MUTATION_BINDTOTREE, (nsISupports*)nsiframe);
 631         nsIDOMHTMLIFrameElement_Release(nsiframe);
 632     }
 633
 634     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLFrameElement, (void**)&nsframe);
 635     if(NS_SUCCEEDED(nsres)) {
 636         TRACE("frame node\n");
 637
 638         push_mutation_queue(This, MUTATION_BINDTOTREE, (nsISupports*)nsframe);
 639         nsIDOMHTMLFrameElement_Release(nsframe);
 640     }
 641 }
 642
 643 static void NSAPI nsDocumentObserver_DoneAddingChildren(nsIDocumentObserver *iface, nsIContent *aContent,
 644         PRBool aHaveNotified)
 645 {
 646     HTMLDocumentNode *This = NSDOCOBS_THIS(iface);
 647     nsIDOMHTMLScriptElement *nsscript;
 648     nsresult nsres;
 649
 650     TRACE("(%p)->(%p %x)\n", This, aContent, aHaveNotified);
 651
 652     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLScriptElement, (void**)&nsscript);
 653     if(NS_SUCCEEDED(nsres)) {
 654         TRACE("script node\n");
 655
 656         push_mutation_queue(This, MUTATION_SCRIPT, (nsISupports*)nsscript);
 657         nsIDOMHTMLScriptElement_Release(nsscript);
 658     }
 659 }
 660
 661 #undef NSMUTATIONOBS_THIS
 662
 663 static const nsIDocumentObserverVtbl nsDocumentObserverVtbl = {
 664     nsDocumentObserver_QueryInterface,
 665     nsDocumentObserver_AddRef,
 666     nsDocumentObserver_Release,
 667     nsDocumentObserver_CharacterDataWillChange,
 668     nsDocumentObserver_CharacterDataChanged,
 669     nsDocumentObserver_AttributeWillChange,
 670     nsDocumentObserver_AttributeChanged,
 671     nsDocumentObserver_ContentAppended,
 672     nsDocumentObserver_ContentInserted,
 673     nsDocumentObserver_ContentRemoved,
 674     nsDocumentObserver_NodeWillBeDestroyed,
 675     nsDocumentObserver_ParentChainChanged,
 676     nsDocumentObserver_BeginUpdate,
 677     nsDocumentObserver_EndUpdate,
 678     nsDocumentObserver_BeginLoad,
 679     nsDocumentObserver_EndLoad,
 680     nsDocumentObserver_ContentStatesChanged,
 681     nsDocumentObserver_StyleSheetAdded,
 682     nsDocumentObserver_StyleSheetRemoved,
 683     nsDocumentObserver_StyleSheetApplicableStateChanged,
 684     nsDocumentObserver_StyleRuleChanged,
 685     nsDocumentObserver_StyleRuleAdded,
 686     nsDocumentObserver_StyleRuleRemoved,
 687     nsDocumentObserver_BindToDocument,
 688     nsDocumentObserver_DoneAddingChildren
 689 };
 690
 691 void init_mutation(HTMLDocumentNode *doc)
 692 {
 693     nsIDOMNSDocument *nsdoc;
 694     nsresult nsres;
 695
 696     doc->lpIDocumentObserverVtbl  = &nsDocumentObserverVtbl;
 697     doc->lpIRunnableVtbl          = &nsRunnableVtbl;
 698
 699     nsres = nsIDOMHTMLDocument_QueryInterface(doc->nsdoc, &IID_nsIDOMNSDocument, (void**)&nsdoc);
 700     if(NS_FAILED(nsres)) {
 701         ERR("Could not get nsIDOMNSDocument: %08x\n", nsres);
 702         return;
 703     }
 704
 705     nsIDOMNSDocument_WineAddObserver(nsdoc, NSDOCOBS(doc));
 706     nsIDOMNSDocument_Release(nsdoc);
 707 }
 708
 709 void release_mutation(HTMLDocumentNode *doc)
 710 {
 711     nsIDOMNSDocument *nsdoc;
 712     nsresult nsres;
 713
 714     nsres = nsIDOMHTMLDocument_QueryInterface(doc->nsdoc, &IID_nsIDOMNSDocument, (void**)&nsdoc);
 715     if(NS_FAILED(nsres)) {
 716         ERR("Could not get nsIDOMNSDocument: %08x\n", nsres);
 717         return;
 718     }
 719
 720     nsIDOMNSDocument_WineRemoveObserver(nsdoc, NSDOCOBS(doc));
 721     nsIDOMNSDocument_Release(nsdoc);
 722 }