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