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 const IID NS_ICONTENTUTILS_CID =
  43     {0x762C4AE7,0xB923,0x422F,{0xB9,0x7E,0xB9,0xBF,0xC1,0xEF,0x7B,0xF0}};
  44
  45 static nsIContentUtils *content_utils;
  46
  47 static PRUnichar *handle_insert_comment(HTMLDocumentNode *doc, const PRUnichar *comment)
  48 {
  49     int majorv = 0, minorv = 0;
  50     const PRUnichar *ptr, *end;
  51     PRUnichar *buf;
  52     DWORD len;
  53
  54     enum {
  55         CMP_EQ,
  56         CMP_LT,
  57         CMP_LTE,
  58         CMP_GT,
  59         CMP_GTE
  60     } cmpt = CMP_EQ;
  61
  62     static const PRUnichar endifW[] = {'<','!','[','e','n','d','i','f',']'};
  63
  64     if(comment[0] != '[' || comment[1] != 'i' || comment[2] != 'f')
  65         return NULL;
  66
  67     ptr = comment+3;
  68     while(isspaceW(*ptr))
  69         ptr++;
  70
  71     if(ptr[0] == 'l' && ptr[1] == 't') {
  72         ptr += 2;
  73         if(*ptr == 'e') {
  74             cmpt = CMP_LTE;
  75             ptr++;
  76         }else {
  77             cmpt = CMP_LT;
  78         }
  79     }else if(ptr[0] == 'g' && ptr[1] == 't') {
  80         ptr += 2;
  81         if(*ptr == 'e') {
  82             cmpt = CMP_GTE;
  83             ptr++;
  84         }else {
  85             cmpt = CMP_GT;
  86         }
  87     }
  88
  89     if(!isspaceW(*ptr++))
  90         return NULL;
  91     while(isspaceW(*ptr))
  92         ptr++;
  93
  94     if(ptr[0] != 'I' || ptr[1] != 'E')
  95         return NULL;
  96
  97     ptr +=2;
  98     if(!isspaceW(*ptr++))
  99         return NULL;
 100     while(isspaceW(*ptr))
 101         ptr++;
 102
 103     if(!isdigitW(*ptr))
 104         return NULL;
 105     while(isdigitW(*ptr))
 106         majorv = majorv*10 + (*ptr++ - '0');
 107
 108     if(*ptr == '.') {
 109         ptr++;
 110         if(!isdigitW(*ptr))
 111             return NULL;
 112         while(isdigitW(*ptr))
 113             minorv = minorv*10 + (*ptr++ - '0');
 114     }
 115
 116     while(isspaceW(*ptr))
 117         ptr++;
 118     if(ptr[0] != ']' || ptr[1] != '>')
 119         return NULL;
 120     ptr += 2;
 121
 122     len = strlenW(ptr);
 123     if(len < sizeof(endifW)/sizeof(WCHAR))
 124         return NULL;
 125
 126     end = ptr + len-sizeof(endifW)/sizeof(WCHAR);
 127     if(memcmp(end, endifW, sizeof(endifW)))
 128         return NULL;
 129
 130     switch(cmpt) {
 131     case CMP_EQ:
 132         if(majorv == IE_MAJOR_VERSION && minorv == IE_MINOR_VERSION)
 133             break;
 134         return NULL;
 135     case CMP_LT:
 136         if(majorv > IE_MAJOR_VERSION)
 137             break;
 138         if(majorv == IE_MAJOR_VERSION && minorv > IE_MINOR_VERSION)
 139             break;
 140         return NULL;
 141     case CMP_LTE:
 142         if(majorv > IE_MAJOR_VERSION)
 143             break;
 144         if(majorv == IE_MAJOR_VERSION && minorv >= IE_MINOR_VERSION)
 145             break;
 146         return NULL;
 147     case CMP_GT:
 148         if(majorv < IE_MAJOR_VERSION)
 149             break;
 150         if(majorv == IE_MAJOR_VERSION && minorv < IE_MINOR_VERSION)
 151             break;
 152         return NULL;
 153     case CMP_GTE:
 154         if(majorv < IE_MAJOR_VERSION)
 155             break;
 156         if(majorv == IE_MAJOR_VERSION && minorv <= IE_MINOR_VERSION)
 157             break;
 158         return NULL;
 159     }
 160
 161     buf = heap_alloc((end-ptr+1)*sizeof(WCHAR));
 162     if(!buf)
 163         return NULL;
 164
 165     memcpy(buf, ptr, (end-ptr)*sizeof(WCHAR));
 166     buf[end-ptr] = 0;
 167
 168     return buf;
 169 }
 170
 171 static nsresult run_insert_comment(HTMLDocumentNode *doc, nsISupports *comment_iface, nsISupports *arg2)
 172 {
 173     const PRUnichar *comment;
 174     nsIDOMComment *nscomment;
 175     PRUnichar *replace_html;
 176     nsAString comment_str;
 177     nsresult nsres;
 178
 179     nsres = nsISupports_QueryInterface(comment_iface, &IID_nsIDOMComment, (void**)&nscomment);
 180     if(NS_FAILED(nsres)) {
 181         ERR("Could not get nsIDOMComment iface:%08x\n", nsres);
 182         return nsres;
 183     }
 184
 185     nsAString_Init(&comment_str, NULL);
 186     nsres = nsIDOMComment_GetData(nscomment, &comment_str);
 187     if(NS_FAILED(nsres))
 188         return nsres;
 189
 190     nsAString_GetData(&comment_str, &comment);
 191     replace_html = handle_insert_comment(doc, comment);
 192     nsAString_Finish(&comment_str);
 193
 194     if(replace_html) {
 195         HRESULT hres;
 196
 197         hres = replace_node_by_html(doc->nsdoc, (nsIDOMNode*)nscomment, replace_html);
 198         heap_free(replace_html);
 199         if(FAILED(hres))
 200             nsres = NS_ERROR_FAILURE;
 201     }
 202
 203
 204     nsIDOMComment_Release(nscomment);
 205     return nsres;
 206 }
 207
 208 static nsresult run_bind_to_tree(HTMLDocumentNode *doc, nsISupports *nsiface, nsISupports *arg2)
 209 {
 210     nsIDOMNode *nsnode;
 211     HTMLDOMNode *node;
 212     nsresult nsres;
 213     HRESULT hres;
 214
 215     TRACE("(%p)->(%p)\n", doc, nsiface);
 216
 217     nsres = nsISupports_QueryInterface(nsiface, &IID_nsIDOMNode, (void**)&nsnode);
 218     if(NS_FAILED(nsres))
 219         return nsres;
 220
 221     hres = get_node(doc, nsnode, TRUE, &node);
 222     nsIDOMNode_Release(nsnode);
 223     if(FAILED(hres)) {
 224         ERR("Could not get node\n");
 225         return nsres;
 226     }
 227
 228     if(node->vtbl->bind_to_tree)
 229         node->vtbl->bind_to_tree(node);
 230
 231     return nsres;
 232 }
 233
 234 /* Calls undocumented 69 cmd of CGID_Explorer */
 235 static void call_explorer_69(HTMLDocumentObj *doc)
 236 {
 237     IOleCommandTarget *olecmd;
 238     VARIANT var;
 239     HRESULT hres;
 240
 241     if(!doc->client)
 242         return;
 243
 244     hres = IOleClientSite_QueryInterface(doc->client, &IID_IOleCommandTarget, (void**)&olecmd);
 245     if(FAILED(hres))
 246         return;
 247
 248     VariantInit(&var);
 249     hres = IOleCommandTarget_Exec(olecmd, &CGID_Explorer, 69, 0, NULL, &var);
 250     IOleCommandTarget_Release(olecmd);
 251     if(SUCCEEDED(hres) && V_VT(&var) != VT_NULL)
 252         FIXME("handle result\n");
 253 }
 254
 255 static void parse_complete(HTMLDocumentObj *doc)
 256 {
 257     TRACE("(%p)\n", doc);
 258
 259     if(doc->usermode == EDITMODE)
 260         init_editor(&doc->basedoc);
 261
 262     call_explorer_69(doc);
 263     if(doc->view_sink)
 264         IAdviseSink_OnViewChange(doc->view_sink, DVASPECT_CONTENT, -1);
 265     call_property_onchanged(&doc->basedoc.cp_propnotif, 1005);
 266     call_explorer_69(doc);
 267
 268     /* FIXME: IE7 calls EnableModelless(TRUE), EnableModelless(FALSE) and sets interactive state here */
 269 }
 270
 271 static nsresult run_end_load(HTMLDocumentNode *This, nsISupports *arg1, nsISupports *arg2)
 272 {
 273     TRACE("(%p)\n", This);
 274
 275     if(!This->basedoc.doc_obj)
 276         return NS_OK;
 277
 278     if(This == This->basedoc.doc_obj->basedoc.doc_node) {
 279         /*
 280          * This should be done in the worker thread that parses HTML,
 281          * but we don't have such thread (Gecko parses HTML for us).
 282          */
 283         parse_complete(This->basedoc.doc_obj);
 284     }
 285
 286     set_ready_state(This->basedoc.window, READYSTATE_INTERACTIVE);
 287     return NS_OK;
 288 }
 289
 290 static nsresult run_insert_script(HTMLDocumentNode *doc, nsISupports *script_iface, nsISupports *parser_iface)
 291 {
 292     nsIDOMHTMLScriptElement *nsscript;
 293     nsIParser *nsparser = NULL;
 294     nsresult nsres;
 295
 296     TRACE("(%p)->(%p)\n", doc, script_iface);
 297
 298     nsres = nsISupports_QueryInterface(script_iface, &IID_nsIDOMHTMLScriptElement, (void**)&nsscript);
 299     if(NS_FAILED(nsres)) {
 300         ERR("Could not get nsIDOMHTMLScriptElement: %08x\n", nsres);
 301         return nsres;
 302     }
 303
 304     if(parser_iface) {
 305         nsres = nsISupports_QueryInterface(parser_iface, &IID_nsIParser, (void**)&nsparser);
 306         if(NS_FAILED(nsres)) {
 307             ERR("Could not get nsIParser iface: %08x\n", nsres);
 308             nsparser = NULL;
 309         }
 310     }
 311
 312     if(nsparser)
 313         nsIParser_BeginEvaluatingParserInsertedScript(nsparser);
 314
 315     doc_insert_script(doc->basedoc.window, nsscript);
 316
 317     if(nsparser) {
 318         nsIParser_EndEvaluatingParserInsertedScript(nsparser);
 319         nsIParser_Release(nsparser);
 320     }
 321
 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     nsRunnable *runnable;
 414
 415     runnable = heap_alloc_zero(sizeof(*runnable));
 416     if(!runnable)
 417         return;
 418
 419     runnable->nsIRunnable_iface.lpVtbl = &nsRunnableVtbl;
 420     runnable->ref = 1;
 421
 422     htmldoc_addref(&This->basedoc);
 423     runnable->doc = This;
 424     runnable->proc = proc;
 425
 426     if(arg1)
 427         nsISupports_AddRef(arg1);
 428     runnable->arg1 = arg1;
 429
 430     if(arg2)
 431         nsISupports_AddRef(arg2);
 432     runnable->arg2 = arg2;
 433
 434     nsIContentUtils_AddScriptRunner(content_utils, &runnable->nsIRunnable_iface);
 435
 436     nsIRunnable_Release(&runnable->nsIRunnable_iface);
 437 }
 438
 439 static inline HTMLDocumentNode *impl_from_nsIDocumentObserver(nsIDocumentObserver *iface)
 440 {
 441     return CONTAINING_RECORD(iface, HTMLDocumentNode, nsIDocumentObserver_iface);
 442 }
 443
 444 static nsresult NSAPI nsDocumentObserver_QueryInterface(nsIDocumentObserver *iface,
 445         nsIIDRef riid, void **result)
 446 {
 447     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 448
 449     if(IsEqualGUID(&IID_nsISupports, riid)) {
 450         TRACE("(%p)->(IID_nsISupports, %p)\n", This, result);
 451         *result = &This->nsIDocumentObserver_iface;
 452     }else if(IsEqualGUID(&IID_nsIMutationObserver, riid)) {
 453         TRACE("(%p)->(IID_nsIMutationObserver %p)\n", This, result);
 454         *result = &This->nsIDocumentObserver_iface;
 455     }else if(IsEqualGUID(&IID_nsIDocumentObserver, riid)) {
 456         TRACE("(%p)->(IID_nsIDocumentObserver %p)\n", This, result);
 457         *result = &This->nsIDocumentObserver_iface;
 458     }else {
 459         *result = NULL;
 460         TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), result);
 461         return NS_NOINTERFACE;
 462     }
 463
 464     htmldoc_addref(&This->basedoc);
 465     return NS_OK;
 466 }
 467
 468 static nsrefcnt NSAPI nsDocumentObserver_AddRef(nsIDocumentObserver *iface)
 469 {
 470     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 471     return htmldoc_addref(&This->basedoc);
 472 }
 473
 474 static nsrefcnt NSAPI nsDocumentObserver_Release(nsIDocumentObserver *iface)
 475 {
 476     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 477     return htmldoc_release(&This->basedoc);
 478 }
 479
 480 static void NSAPI nsDocumentObserver_CharacterDataWillChange(nsIDocumentObserver *iface,
 481         nsIDocument *aDocument, nsIContent *aContent, void /*CharacterDataChangeInfo*/ *aInfo)
 482 {
 483 }
 484
 485 static void NSAPI nsDocumentObserver_CharacterDataChanged(nsIDocumentObserver *iface,
 486         nsIDocument *aDocument, nsIContent *aContent, void /*CharacterDataChangeInfo*/ *aInfo)
 487 {
 488 }
 489
 490 static void NSAPI nsDocumentObserver_AttributeWillChange(nsIDocumentObserver *iface, nsIDocument *aDocument,
 491         nsIContent *aContent, PRInt32 aNameSpaceID, nsIAtom *aAttribute, PRInt32 aModType)
 492 {
 493 }
 494
 495 static void NSAPI nsDocumentObserver_AttributeChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 496         nsIContent *aContent, PRInt32 aNameSpaceID, nsIAtom *aAttribute, PRInt32 aModType)
 497 {
 498 }
 499
 500 static void NSAPI nsDocumentObserver_ContentAppended(nsIDocumentObserver *iface, nsIDocument *aDocument,
 501         nsIContent *aContainer, nsIContent *aFirstNewContent, PRInt32 aNewIndexInContainer)
 502 {
 503 }
 504
 505 static void NSAPI nsDocumentObserver_ContentInserted(nsIDocumentObserver *iface, nsIDocument *aDocument,
 506         nsIContent *aContainer, nsIContent *aChild, PRInt32 aIndexInContainer)
 507 {
 508 }
 509
 510 static void NSAPI nsDocumentObserver_ContentRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 511         nsIContent *aContainer, nsIContent *aChild, PRInt32 aIndexInContainer,
 512         nsIContent *aProviousSibling)
 513 {
 514 }
 515
 516 static void NSAPI nsDocumentObserver_NodeWillBeDestroyed(nsIDocumentObserver *iface, const nsINode *aNode)
 517 {
 518 }
 519
 520 static void NSAPI nsDocumentObserver_ParentChainChanged(nsIDocumentObserver *iface, nsIContent *aContent)
 521 {
 522 }
 523
 524 static void NSAPI nsDocumentObserver_BeginUpdate(nsIDocumentObserver *iface, nsIDocument *aDocument,
 525         nsUpdateType aUpdateType)
 526 {
 527 }
 528
 529 static void NSAPI nsDocumentObserver_EndUpdate(nsIDocumentObserver *iface, nsIDocument *aDocument,
 530         nsUpdateType aUpdateType)
 531 {
 532 }
 533
 534 static void NSAPI nsDocumentObserver_BeginLoad(nsIDocumentObserver *iface, nsIDocument *aDocument)
 535 {
 536 }
 537
 538 static void NSAPI nsDocumentObserver_EndLoad(nsIDocumentObserver *iface, nsIDocument *aDocument)
 539 {
 540     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 541
 542     TRACE("(%p)\n", This);
 543
 544     if(This->skip_mutation_notif)
 545         return;
 546
 547     This->content_ready = TRUE;
 548     add_script_runner(This, run_end_load, NULL, NULL);
 549 }
 550
 551 static void NSAPI nsDocumentObserver_ContentStatesChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 552         nsIContent *aContent, nsEventStates aStateMask)
 553 {
 554 }
 555
 556 static void NSAPI nsDocumentObserver_DocumentStatesChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 557         nsEventStates aStateMask)
 558 {
 559 }
 560
 561 static void NSAPI nsDocumentObserver_StyleSheetAdded(nsIDocumentObserver *iface, nsIDocument *aDocument,
 562         nsIStyleSheet *aStyleSheet, PRBool aDocumentSheet)
 563 {
 564 }
 565
 566 static void NSAPI nsDocumentObserver_StyleSheetRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 567         nsIStyleSheet *aStyleSheet, PRBool aDocumentSheet)
 568 {
 569 }
 570
 571 static void NSAPI nsDocumentObserver_StyleSheetApplicableStateChanged(nsIDocumentObserver *iface,
 572         nsIDocument *aDocument, nsIStyleSheet *aStyleSheet, PRBool aApplicable)
 573 {
 574 }
 575
 576 static void NSAPI nsDocumentObserver_StyleRuleChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 577         nsIStyleSheet *aStyleSheet, nsIStyleRule *aOldStyleRule, nsIStyleSheet *aNewStyleRule)
 578 {
 579 }
 580
 581 static void NSAPI nsDocumentObserver_StyleRuleAdded(nsIDocumentObserver *iface, nsIDocument *aDocument,
 582         nsIStyleSheet *aStyleSheet, nsIStyleRule *aStyleRule)
 583 {
 584 }
 585
 586 static void NSAPI nsDocumentObserver_StyleRuleRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 587         nsIStyleSheet *aStyleSheet, nsIStyleRule *aStyleRule)
 588 {
 589 }
 590
 591 static void NSAPI nsDocumentObserver_BindToDocument(nsIDocumentObserver *iface, nsIDocument *aDocument,
 592         nsIContent *aContent)
 593 {
 594     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 595     nsIDOMHTMLIFrameElement *nsiframe;
 596     nsIDOMHTMLFrameElement *nsframe;
 597     nsIDOMComment *nscomment;
 598     nsIDOMElement *nselem;
 599     nsresult nsres;
 600
 601     TRACE("(%p)\n", This);
 602
 603     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMElement, (void**)&nselem);
 604     if(NS_SUCCEEDED(nsres)) {
 605         check_event_attr(This, nselem);
 606         nsIDOMElement_Release(nselem);
 607     }
 608
 609     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMComment, (void**)&nscomment);
 610     if(NS_SUCCEEDED(nsres)) {
 611         TRACE("comment node\n");
 612
 613         add_script_runner(This, run_insert_comment, (nsISupports*)nscomment, NULL);
 614         nsIDOMComment_Release(nscomment);
 615     }
 616
 617     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLIFrameElement, (void**)&nsiframe);
 618     if(NS_SUCCEEDED(nsres)) {
 619         TRACE("iframe node\n");
 620
 621         add_script_runner(This, run_bind_to_tree, (nsISupports*)nsiframe, NULL);
 622         nsIDOMHTMLIFrameElement_Release(nsiframe);
 623     }
 624
 625     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLFrameElement, (void**)&nsframe);
 626     if(NS_SUCCEEDED(nsres)) {
 627         TRACE("frame node\n");
 628
 629         add_script_runner(This, run_bind_to_tree, (nsISupports*)nsframe, NULL);
 630         nsIDOMHTMLFrameElement_Release(nsframe);
 631     }
 632 }
 633
 634 static nsresult NSAPI nsDocumentObserver_DoneAddingChildren(nsIDocumentObserver *iface, nsIContent *aContent,
 635         PRBool aHaveNotified, nsIParser *aParser)
 636 {
 637     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 638     nsIDOMHTMLScriptElement *nsscript;
 639     nsresult nsres;
 640
 641     TRACE("(%p)->(%p %x)\n", This, aContent, aHaveNotified);
 642
 643     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLScriptElement, (void**)&nsscript);
 644     if(NS_SUCCEEDED(nsres)) {
 645         TRACE("script node\n");
 646
 647         add_script_runner(This, run_insert_script, (nsISupports*)nsscript, (nsISupports*)aParser);
 648         nsIDOMHTMLScriptElement_Release(nsscript);
 649     }
 650
 651     return NS_OK;
 652 }
 653
 654 static const nsIDocumentObserverVtbl nsDocumentObserverVtbl = {
 655     nsDocumentObserver_QueryInterface,
 656     nsDocumentObserver_AddRef,
 657     nsDocumentObserver_Release,
 658     nsDocumentObserver_CharacterDataWillChange,
 659     nsDocumentObserver_CharacterDataChanged,
 660     nsDocumentObserver_AttributeWillChange,
 661     nsDocumentObserver_AttributeChanged,
 662     nsDocumentObserver_ContentAppended,
 663     nsDocumentObserver_ContentInserted,
 664     nsDocumentObserver_ContentRemoved,
 665     nsDocumentObserver_NodeWillBeDestroyed,
 666     nsDocumentObserver_ParentChainChanged,
 667     nsDocumentObserver_BeginUpdate,
 668     nsDocumentObserver_EndUpdate,
 669     nsDocumentObserver_BeginLoad,
 670     nsDocumentObserver_EndLoad,
 671     nsDocumentObserver_ContentStatesChanged,
 672     nsDocumentObserver_DocumentStatesChanged,
 673     nsDocumentObserver_StyleSheetAdded,
 674     nsDocumentObserver_StyleSheetRemoved,
 675     nsDocumentObserver_StyleSheetApplicableStateChanged,
 676     nsDocumentObserver_StyleRuleChanged,
 677     nsDocumentObserver_StyleRuleAdded,
 678     nsDocumentObserver_StyleRuleRemoved,
 679     nsDocumentObserver_BindToDocument,
 680     nsDocumentObserver_DoneAddingChildren
 681 };
 682
 683 void init_document_mutation(HTMLDocumentNode *doc)
 684 {
 685     nsIDocument *nsdoc;
 686     nsresult nsres;
 687
 688     doc->nsIDocumentObserver_iface.lpVtbl = &nsDocumentObserverVtbl;
 689
 690     nsres = nsIDOMHTMLDocument_QueryInterface(doc->nsdoc, &IID_nsIDocument, (void**)&nsdoc);
 691     if(NS_FAILED(nsres)) {
 692         ERR("Could not get nsIDocument: %08x\n", nsres);
 693         return;
 694     }
 695
 696     nsIContentUtils_AddDocumentObserver(content_utils, nsdoc, &doc->nsIDocumentObserver_iface);
 697     nsIDocument_Release(nsdoc);
 698 }
 699
 700 void release_document_mutation(HTMLDocumentNode *doc)
 701 {
 702     nsIDocument *nsdoc;
 703     nsresult nsres;
 704
 705     nsres = nsIDOMHTMLDocument_QueryInterface(doc->nsdoc, &IID_nsIDocument, (void**)&nsdoc);
 706     if(NS_FAILED(nsres)) {
 707         ERR("Could not get nsIDocument: %08x\n", nsres);
 708         return;
 709     }
 710
 711     nsIContentUtils_RemoveDocumentObserver(content_utils, nsdoc, &doc->nsIDocumentObserver_iface);
 712     nsIDocument_Release(nsdoc);
 713 }
 714
 715 void init_mutation(nsIComponentManager *component_manager)
 716 {
 717     nsIFactory *factory;
 718     nsresult nsres;
 719
 720     if(!component_manager) {
 721         if(content_utils) {
 722             nsIContentUtils_Release(content_utils);
 723             content_utils = NULL;
 724         }
 725         return;
 726     }
 727
 728     nsres = nsIComponentManager_GetClassObject(component_manager, &NS_ICONTENTUTILS_CID,
 729             &IID_nsIFactory, (void**)&factory);
 730     if(NS_FAILED(nsres)) {
 731         ERR("Could not create nsIContentUtils service: %08x\n", nsres);
 732         return;
 733     }
 734
 735     nsres = nsIFactory_CreateInstance(factory, NULL, &IID_nsIContentUtils, (void**)&content_utils);
 736     nsIFactory_Release(factory);
 737     if(NS_FAILED(nsres))
 738         ERR("Could not create nsIContentUtils instance: %08x\n", nsres);
 739 }