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 #define IE_MAJOR_VERSION 7
  40 #define IE_MINOR_VERSION 0
  41
  42 static BOOL handle_insert_comment(HTMLDocumentNode *doc, const PRUnichar *comment)
  43 {
  44     DWORD len;
  45     int majorv = 0, minorv = 0;
  46     const PRUnichar *ptr, *end;
  47     nsAString nsstr;
  48     PRUnichar *buf;
  49     nsresult nsres;
  50
  51     enum {
  52         CMP_EQ,
  53         CMP_LT,
  54         CMP_LTE,
  55         CMP_GT,
  56         CMP_GTE
  57     } cmpt = CMP_EQ;
  58
  59     static const PRUnichar endifW[] = {'<','!','[','e','n','d','i','f',']'};
  60
  61     if(comment[0] != '[' || comment[1] != 'i' || comment[2] != 'f')
  62         return FALSE;
  63
  64     ptr = comment+3;
  65     while(isspaceW(*ptr))
  66         ptr++;
  67
  68     if(ptr[0] == 'l' && ptr[1] == 't') {
  69         ptr += 2;
  70         if(*ptr == 'e') {
  71             cmpt = CMP_LTE;
  72             ptr++;
  73         }else {
  74             cmpt = CMP_LT;
  75         }
  76     }else if(ptr[0] == 'g' && ptr[1] == 't') {
  77         ptr += 2;
  78         if(*ptr == 'e') {
  79             cmpt = CMP_GTE;
  80             ptr++;
  81         }else {
  82             cmpt = CMP_GT;
  83         }
  84     }
  85
  86     if(!isspaceW(*ptr++))
  87         return FALSE;
  88     while(isspaceW(*ptr))
  89         ptr++;
  90
  91     if(ptr[0] != 'I' || ptr[1] != 'E')
  92         return FALSE;
  93
  94     ptr +=2;
  95     if(!isspaceW(*ptr++))
  96         return FALSE;
  97     while(isspaceW(*ptr))
  98         ptr++;
  99
 100     if(!isdigitW(*ptr))
 101         return FALSE;
 102     while(isdigitW(*ptr))
 103         majorv = majorv*10 + (*ptr++ - '0');
 104
 105     if(*ptr == '.') {
 106         ptr++;
 107         if(!isdigitW(*ptr))
 108             return FALSE;
 109         while(isdigitW(*ptr))
 110             minorv = minorv*10 + (*ptr++ - '0');
 111     }
 112
 113     while(isspaceW(*ptr))
 114         ptr++;
 115     if(ptr[0] != ']' || ptr[1] != '>')
 116         return FALSE;
 117     ptr += 2;
 118
 119     len = strlenW(ptr);
 120     if(len < sizeof(endifW)/sizeof(WCHAR))
 121         return FALSE;
 122
 123     end = ptr + len-sizeof(endifW)/sizeof(WCHAR);
 124     if(memcmp(end, endifW, sizeof(endifW)))
 125         return FALSE;
 126
 127     switch(cmpt) {
 128     case CMP_EQ:
 129         if(majorv == IE_MAJOR_VERSION && minorv == IE_MINOR_VERSION)
 130             break;
 131         return FALSE;
 132     case CMP_LT:
 133         if(majorv > IE_MAJOR_VERSION)
 134             break;
 135         if(majorv == IE_MAJOR_VERSION && minorv > IE_MINOR_VERSION)
 136             break;
 137         return FALSE;
 138     case CMP_LTE:
 139         if(majorv > IE_MAJOR_VERSION)
 140             break;
 141         if(majorv == IE_MAJOR_VERSION && minorv >= IE_MINOR_VERSION)
 142             break;
 143         return FALSE;
 144     case CMP_GT:
 145         if(majorv < IE_MAJOR_VERSION)
 146             break;
 147         if(majorv == IE_MAJOR_VERSION && minorv < IE_MINOR_VERSION)
 148             break;
 149         return FALSE;
 150     case CMP_GTE:
 151         if(majorv < IE_MAJOR_VERSION)
 152             break;
 153         if(majorv == IE_MAJOR_VERSION && minorv <= IE_MINOR_VERSION)
 154             break;
 155         return FALSE;
 156     }
 157
 158     buf = heap_alloc((end-ptr+1)*sizeof(WCHAR));
 159     if(!buf)
 160         return FALSE;
 161
 162     memcpy(buf, ptr, (end-ptr)*sizeof(WCHAR));
 163     buf[end-ptr] = 0;
 164     nsAString_InitDepend(&nsstr, buf);
 165
 166     /* FIXME: Find better way to insert HTML to document. */
 167     nsres = nsIDOMHTMLDocument_Write(doc->nsdoc, &nsstr);
 168     nsAString_Finish(&nsstr);
 169     heap_free(buf);
 170     if(NS_FAILED(nsres)) {
 171         ERR("Write failed: %08x\n", nsres);
 172         return FALSE;
 173     }
 174
 175     return TRUE;
 176 }
 177
 178 static nsresult run_insert_comment(HTMLDocumentNode *doc, nsISupports *comment_iface, nsISupports *arg2)
 179 {
 180     const PRUnichar *comment;
 181     nsIDOMComment *nscomment;
 182     nsAString comment_str;
 183     BOOL remove_comment;
 184     nsresult nsres;
 185
 186     nsres = nsISupports_QueryInterface(comment_iface, &IID_nsIDOMComment, (void**)&nscomment);
 187     if(NS_FAILED(nsres)) {
 188         ERR("Could not get nsIDOMComment iface:%08x\n", nsres);
 189         return nsres;
 190     }
 191
 192     nsAString_Init(&comment_str, NULL);
 193     nsres = nsIDOMComment_GetData(nscomment, &comment_str);
 194     if(NS_FAILED(nsres))
 195         return nsres;
 196
 197     nsAString_GetData(&comment_str, &comment);
 198     remove_comment = handle_insert_comment(doc, comment);
 199     nsAString_Finish(&comment_str);
 200
 201     if(remove_comment) {
 202         nsIDOMNode *nsparent, *tmp;
 203         nsAString magic_str;
 204
 205         static const PRUnichar remove_comment_magicW[] =
 206             {'#','!','w','i','n','e', 'r','e','m','o','v','e','!','#',0};
 207
 208         nsAString_InitDepend(&magic_str, remove_comment_magicW);
 209         nsres = nsIDOMComment_SetData(nscomment, &magic_str);
 210         nsAString_Finish(&magic_str);
 211         if(NS_FAILED(nsres))
 212             ERR("SetData failed: %08x\n", nsres);
 213
 214         nsIDOMComment_GetParentNode(nscomment, &nsparent);
 215         if(nsparent) {
 216             nsIDOMNode_RemoveChild(nsparent, (nsIDOMNode*)nscomment, &tmp);
 217             nsIDOMNode_Release(nsparent);
 218             nsIDOMNode_Release(tmp);
 219         }
 220     }
 221
 222     nsIDOMComment_Release(nscomment);
 223     return NS_OK;
 224 }
 225
 226 static nsresult run_bind_to_tree(HTMLDocumentNode *doc, nsISupports *nsiface, nsISupports *arg2)
 227 {
 228     nsIDOMNode *nsnode;
 229     HTMLDOMNode *node;
 230     nsresult nsres;
 231     HRESULT hres;
 232
 233     TRACE("(%p)->(%p)\n", doc, nsiface);
 234
 235     nsres = nsISupports_QueryInterface(nsiface, &IID_nsIDOMNode, (void**)&nsnode);
 236     if(NS_FAILED(nsres))
 237         return nsres;
 238
 239     hres = get_node(doc, nsnode, TRUE, &node);
 240     nsIDOMNode_Release(nsnode);
 241     if(FAILED(hres)) {
 242         ERR("Could not get node\n");
 243         return nsres;
 244     }
 245
 246     if(node->vtbl->bind_to_tree)
 247         node->vtbl->bind_to_tree(node);
 248
 249     return nsres;
 250 }
 251
 252 /* Calls undocumented 69 cmd of CGID_Explorer */
 253 static void call_explorer_69(HTMLDocumentObj *doc)
 254 {
 255     IOleCommandTarget *olecmd;
 256     VARIANT var;
 257     HRESULT hres;
 258
 259     if(!doc->client)
 260         return;
 261
 262     hres = IOleClientSite_QueryInterface(doc->client, &IID_IOleCommandTarget, (void**)&olecmd);
 263     if(FAILED(hres))
 264         return;
 265
 266     VariantInit(&var);
 267     hres = IOleCommandTarget_Exec(olecmd, &CGID_Explorer, 69, 0, NULL, &var);
 268     IOleCommandTarget_Release(olecmd);
 269     if(SUCCEEDED(hres) && V_VT(&var) != VT_NULL)
 270         FIXME("handle result\n");
 271 }
 272
 273 static void parse_complete(HTMLDocumentObj *doc)
 274 {
 275     TRACE("(%p)\n", doc);
 276
 277     if(doc->usermode == EDITMODE)
 278         init_editor(&doc->basedoc);
 279
 280     call_explorer_69(doc);
 281     if(doc->view_sink)
 282         IAdviseSink_OnViewChange(doc->view_sink, DVASPECT_CONTENT, -1);
 283     call_property_onchanged(&doc->basedoc.cp_propnotif, 1005);
 284     call_explorer_69(doc);
 285
 286     /* FIXME: IE7 calls EnableModelless(TRUE), EnableModelless(FALSE) and sets interactive state here */
 287 }
 288
 289 static nsresult run_end_load(HTMLDocumentNode *This, nsISupports *arg1, nsISupports *arg2)
 290 {
 291     TRACE("(%p)\n", This);
 292
 293     if(!This->basedoc.doc_obj)
 294         return NS_OK;
 295
 296     if(This == This->basedoc.doc_obj->basedoc.doc_node) {
 297         /*
 298          * This should be done in the worker thread that parses HTML,
 299          * but we don't have such thread (Gecko parses HTML for us).
 300          */
 301         parse_complete(This->basedoc.doc_obj);
 302     }
 303
 304     set_ready_state(This->basedoc.window, READYSTATE_INTERACTIVE);
 305     return NS_OK;
 306 }
 307
 308 static nsresult run_insert_script(HTMLDocumentNode *doc, nsISupports *script_iface, nsISupports *arg)
 309 {
 310     nsIDOMHTMLScriptElement *nsscript;
 311     nsresult nsres;
 312
 313     TRACE("(%p)->(%p)\n", doc, script_iface);
 314
 315     nsres = nsISupports_QueryInterface(script_iface, &IID_nsIDOMHTMLScriptElement, (void**)&nsscript);
 316     if(NS_FAILED(nsres)) {
 317         ERR("Could not get nsIDOMHTMLScriptElement: %08x\n", nsres);
 318         return nsres;
 319     }
 320
 321     doc_insert_script(doc->basedoc.window, nsscript);
 322     nsIDOMHTMLScriptElement_Release(nsscript);
 323     return NS_OK;
 324 }
 325
 326 typedef struct nsRunnable nsRunnable;
 327
 328 typedef nsresult (*runnable_proc_t)(HTMLDocumentNode*,nsISupports*,nsISupports*);
 329
 330 struct nsRunnable {
 331     nsIRunnable  nsIRunnable_iface;
 332
 333     LONG ref;
 334
 335     runnable_proc_t proc;
 336
 337     HTMLDocumentNode *doc;
 338     nsISupports *arg1;
 339     nsISupports *arg2;
 340 };
 341
 342 static inline nsRunnable *impl_from_nsIRunnable(nsIRunnable *iface)
 343 {
 344     return CONTAINING_RECORD(iface, nsRunnable, nsIRunnable_iface);
 345 }
 346
 347 static nsresult NSAPI nsRunnable_QueryInterface(nsIRunnable *iface,
 348         nsIIDRef riid, void **result)
 349 {
 350     nsRunnable *This = impl_from_nsIRunnable(iface);
 351
 352     if(IsEqualGUID(riid, &IID_nsISupports)) {
 353         TRACE("(%p)->(IID_nsISupports %p)\n", This, result);
 354         *result = &This->nsIRunnable_iface;
 355     }else if(IsEqualGUID(riid, &IID_nsIRunnable)) {
 356         TRACE("(%p)->(IID_nsIRunnable %p)\n", This, result);
 357         *result = &This->nsIRunnable_iface;
 358     }else {
 359         *result = NULL;
 360         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), result);
 361         return NS_NOINTERFACE;
 362     }
 363
 364     nsISupports_AddRef((nsISupports*)*result);
 365     return NS_OK;
 366 }
 367
 368 static nsrefcnt NSAPI nsRunnable_AddRef(nsIRunnable *iface)
 369 {
 370     nsRunnable *This = impl_from_nsIRunnable(iface);
 371     LONG ref = InterlockedIncrement(&This->ref);
 372
 373     TRACE("(%p) ref=%d\n", This, ref);
 374
 375     return ref;
 376 }
 377
 378 static nsrefcnt NSAPI nsRunnable_Release(nsIRunnable *iface)
 379 {
 380     nsRunnable *This = impl_from_nsIRunnable(iface);
 381     LONG ref = InterlockedDecrement(&This->ref);
 382
 383     TRACE("(%p) ref=%d\n", This, ref);
 384
 385     if(!ref) {
 386         htmldoc_release(&This->doc->basedoc);
 387         if(This->arg1)
 388             nsISupports_Release(This->arg1);
 389         if(This->arg2)
 390             nsISupports_Release(This->arg2);
 391         heap_free(This);
 392     }
 393
 394     return ref;
 395 }
 396
 397 static nsresult NSAPI nsRunnable_Run(nsIRunnable *iface)
 398 {
 399     nsRunnable *This = impl_from_nsIRunnable(iface);
 400
 401     return This->proc(This->doc, This->arg1, This->arg2);
 402 }
 403
 404 static const nsIRunnableVtbl nsRunnableVtbl = {
 405     nsRunnable_QueryInterface,
 406     nsRunnable_AddRef,
 407     nsRunnable_Release,
 408     nsRunnable_Run
 409 };
 410
 411 static void add_script_runner(HTMLDocumentNode *This, runnable_proc_t proc, nsISupports *arg1, nsISupports *arg2)
 412 {
 413     nsIDOMNSDocument *nsdoc;
 414     nsRunnable *runnable;
 415     nsresult nsres;
 416
 417     runnable = heap_alloc_zero(sizeof(*runnable));
 418     if(!runnable)
 419         return;
 420
 421     runnable->nsIRunnable_iface.lpVtbl = &nsRunnableVtbl;
 422     runnable->ref = 1;
 423
 424     htmldoc_addref(&This->basedoc);
 425     runnable->doc = This;
 426     runnable->proc = proc;
 427
 428     if(arg1)
 429         nsISupports_AddRef(arg1);
 430     runnable->arg1 = arg1;
 431
 432     if(arg2)
 433         nsISupports_AddRef(arg2);
 434     runnable->arg2 = arg2;
 435
 436     nsres = nsIDOMHTMLDocument_QueryInterface(This->nsdoc, &IID_nsIDOMNSDocument, (void**)&nsdoc);
 437     if(NS_SUCCEEDED(nsres)) {
 438         nsIDOMNSDocument_WineAddScriptRunner(nsdoc, &runnable->nsIRunnable_iface);
 439         nsIDOMNSDocument_Release(nsdoc);
 440     }else {
 441         ERR("Could not get nsIDOMNSDocument: %08x\n", nsres);
 442     }
 443
 444     nsIRunnable_Release(&runnable->nsIRunnable_iface);
 445 }
 446
 447 static inline HTMLDocumentNode *impl_from_nsIDocumentObserver(nsIDocumentObserver *iface)
 448 {
 449     return CONTAINING_RECORD(iface, HTMLDocumentNode, nsIDocumentObserver_iface);
 450 }
 451
 452 static nsresult NSAPI nsDocumentObserver_QueryInterface(nsIDocumentObserver *iface,
 453         nsIIDRef riid, void **result)
 454 {
 455     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 456
 457     if(IsEqualGUID(&IID_nsISupports, riid)) {
 458         TRACE("(%p)->(IID_nsISupports, %p)\n", This, result);
 459         *result = &This->nsIDocumentObserver_iface;
 460     }else if(IsEqualGUID(&IID_nsIMutationObserver, riid)) {
 461         TRACE("(%p)->(IID_nsIMutationObserver %p)\n", This, result);
 462         *result = &This->nsIDocumentObserver_iface;
 463     }else if(IsEqualGUID(&IID_nsIDocumentObserver, riid)) {
 464         TRACE("(%p)->(IID_nsIDocumentObserver %p)\n", This, result);
 465         *result = &This->nsIDocumentObserver_iface;
 466     }else {
 467         *result = NULL;
 468         TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), result);
 469         return NS_NOINTERFACE;
 470     }
 471
 472     htmldoc_addref(&This->basedoc);
 473     return NS_OK;
 474 }
 475
 476 static nsrefcnt NSAPI nsDocumentObserver_AddRef(nsIDocumentObserver *iface)
 477 {
 478     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 479     return htmldoc_addref(&This->basedoc);
 480 }
 481
 482 static nsrefcnt NSAPI nsDocumentObserver_Release(nsIDocumentObserver *iface)
 483 {
 484     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 485     return htmldoc_release(&This->basedoc);
 486 }
 487
 488 static void NSAPI nsDocumentObserver_CharacterDataWillChange(nsIDocumentObserver *iface,
 489         nsIDocument *aDocument, nsIContent *aContent, void /*CharacterDataChangeInfo*/ *aInfo)
 490 {
 491 }
 492
 493 static void NSAPI nsDocumentObserver_CharacterDataChanged(nsIDocumentObserver *iface,
 494         nsIDocument *aDocument, nsIContent *aContent, void /*CharacterDataChangeInfo*/ *aInfo)
 495 {
 496 }
 497
 498 static void NSAPI nsDocumentObserver_AttributeWillChange(nsIDocumentObserver *iface, nsIDocument *aDocument,
 499         nsIContent *aContent, PRInt32 aNameSpaceID, nsIAtom *aAttribute, PRInt32 aModType)
 500 {
 501 }
 502
 503 static void NSAPI nsDocumentObserver_AttributeChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 504         nsIContent *aContent, PRInt32 aNameSpaceID, nsIAtom *aAttribute, PRInt32 aModType)
 505 {
 506 }
 507
 508 static void NSAPI nsDocumentObserver_ContentAppended(nsIDocumentObserver *iface, nsIDocument *aDocument,
 509         nsIContent *aContainer, nsIContent *aFirstNewContent, PRInt32 aNewIndexInContainer)
 510 {
 511 }
 512
 513 static void NSAPI nsDocumentObserver_ContentInserted(nsIDocumentObserver *iface, nsIDocument *aDocument,
 514         nsIContent *aContainer, nsIContent *aChild, PRInt32 aIndexInContainer)
 515 {
 516 }
 517
 518 static void NSAPI nsDocumentObserver_ContentRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 519         nsIContent *aContainer, nsIContent *aChild, PRInt32 aIndexInContainer,
 520         nsIContent *aProviousSibling)
 521 {
 522 }
 523
 524 static void NSAPI nsDocumentObserver_NodeWillBeDestroyed(nsIDocumentObserver *iface, const nsINode *aNode)
 525 {
 526 }
 527
 528 static void NSAPI nsDocumentObserver_ParentChainChanged(nsIDocumentObserver *iface, nsIContent *aContent)
 529 {
 530 }
 531
 532 static void NSAPI nsDocumentObserver_BeginUpdate(nsIDocumentObserver *iface, nsIDocument *aDocument,
 533         nsUpdateType aUpdateType)
 534 {
 535 }
 536
 537 static void NSAPI nsDocumentObserver_EndUpdate(nsIDocumentObserver *iface, nsIDocument *aDocument,
 538         nsUpdateType aUpdateType)
 539 {
 540 }
 541
 542 static void NSAPI nsDocumentObserver_BeginLoad(nsIDocumentObserver *iface, nsIDocument *aDocument)
 543 {
 544 }
 545
 546 static void NSAPI nsDocumentObserver_EndLoad(nsIDocumentObserver *iface, nsIDocument *aDocument)
 547 {
 548     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 549
 550     TRACE("\n");
 551
 552     if(This->skip_mutation_notif)
 553         return;
 554
 555     This->content_ready = TRUE;
 556     add_script_runner(This, run_end_load, NULL, NULL);
 557 }
 558
 559 static void NSAPI nsDocumentObserver_ContentStatesChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 560         nsIContent *aContent1, nsIContent *aContent2, PRInt32 aStateMask)
 561 {
 562 }
 563
 564 static void NSAPI nsDocumentObserver_DocumentStatesChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 565         PRInt32 aStateMask)
 566 {
 567 }
 568
 569 static void NSAPI nsDocumentObserver_StyleSheetAdded(nsIDocumentObserver *iface, nsIDocument *aDocument,
 570         nsIStyleSheet *aStyleSheet, PRBool aDocumentSheet)
 571 {
 572 }
 573
 574 static void NSAPI nsDocumentObserver_StyleSheetRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 575         nsIStyleSheet *aStyleSheet, PRBool aDocumentSheet)
 576 {
 577 }
 578
 579 static void NSAPI nsDocumentObserver_StyleSheetApplicableStateChanged(nsIDocumentObserver *iface,
 580         nsIDocument *aDocument, nsIStyleSheet *aStyleSheet, PRBool aApplicable)
 581 {
 582 }
 583
 584 static void NSAPI nsDocumentObserver_StyleRuleChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 585         nsIStyleSheet *aStyleSheet, nsIStyleRule *aOldStyleRule, nsIStyleSheet *aNewStyleRule)
 586 {
 587 }
 588
 589 static void NSAPI nsDocumentObserver_StyleRuleAdded(nsIDocumentObserver *iface, nsIDocument *aDocument,
 590         nsIStyleSheet *aStyleSheet, nsIStyleRule *aStyleRule)
 591 {
 592 }
 593
 594 static void NSAPI nsDocumentObserver_StyleRuleRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 595         nsIStyleSheet *aStyleSheet, nsIStyleRule *aStyleRule)
 596 {
 597 }
 598
 599 static void NSAPI nsDocumentObserver_BindToDocument(nsIDocumentObserver *iface, nsIDocument *aDocument,
 600         nsIContent *aContent)
 601 {
 602     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 603     nsIDOMHTMLIFrameElement *nsiframe;
 604     nsIDOMHTMLFrameElement *nsframe;
 605     nsIDOMComment *nscomment;
 606     nsIDOMElement *nselem;
 607     nsresult nsres;
 608
 609     TRACE("(%p)\n", This);
 610
 611     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMElement, (void**)&nselem);
 612     if(NS_SUCCEEDED(nsres)) {
 613         check_event_attr(This, nselem);
 614         nsIDOMElement_Release(nselem);
 615     }
 616
 617     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMComment, (void**)&nscomment);
 618     if(NS_SUCCEEDED(nsres)) {
 619         TRACE("comment node\n");
 620
 621         add_script_runner(This, run_insert_comment, (nsISupports*)nscomment, NULL);
 622         nsIDOMComment_Release(nscomment);
 623     }
 624
 625     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLIFrameElement, (void**)&nsiframe);
 626     if(NS_SUCCEEDED(nsres)) {
 627         TRACE("iframe node\n");
 628
 629         add_script_runner(This, run_bind_to_tree, (nsISupports*)nsiframe, NULL);
 630         nsIDOMHTMLIFrameElement_Release(nsiframe);
 631     }
 632
 633     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLFrameElement, (void**)&nsframe);
 634     if(NS_SUCCEEDED(nsres)) {
 635         TRACE("frame node\n");
 636
 637         add_script_runner(This, run_bind_to_tree, (nsISupports*)nsframe, NULL);
 638         nsIDOMHTMLFrameElement_Release(nsframe);
 639     }
 640 }
 641
 642 static void NSAPI nsDocumentObserver_DoneAddingChildren(nsIDocumentObserver *iface, nsIContent *aContent,
 643         PRBool aHaveNotified)
 644 {
 645     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 646     nsIDOMHTMLScriptElement *nsscript;
 647     nsresult nsres;
 648
 649     TRACE("(%p)->(%p %x)\n", This, aContent, aHaveNotified);
 650
 651     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLScriptElement, (void**)&nsscript);
 652     if(NS_SUCCEEDED(nsres)) {
 653         TRACE("script node\n");
 654
 655         add_script_runner(This, run_insert_script, (nsISupports*)nsscript, NULL);
 656         nsIDOMHTMLScriptElement_Release(nsscript);
 657     }
 658 }
 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_DocumentStatesChanged,
 679     nsDocumentObserver_StyleSheetAdded,
 680     nsDocumentObserver_StyleSheetRemoved,
 681     nsDocumentObserver_StyleSheetApplicableStateChanged,
 682     nsDocumentObserver_StyleRuleChanged,
 683     nsDocumentObserver_StyleRuleAdded,
 684     nsDocumentObserver_StyleRuleRemoved,
 685     nsDocumentObserver_BindToDocument,
 686     nsDocumentObserver_DoneAddingChildren
 687 };
 688
 689 void init_mutation(HTMLDocumentNode *doc)
 690 {
 691     nsIDOMNSDocument *nsdoc;
 692     nsresult nsres;
 693
 694     doc->nsIDocumentObserver_iface.lpVtbl = &nsDocumentObserverVtbl;
 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, &doc->nsIDocumentObserver_iface);
 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, &doc->nsIDocumentObserver_iface);
 718     nsIDOMNSDocument_Release(nsdoc);
 719 }