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 BOOL handle_insert_comment(HTMLDocumentNode *doc, const PRUnichar *comment)
  48 {
  49     DWORD len;
  50     int majorv = 0, minorv = 0;
  51     const PRUnichar *ptr, *end;
  52     nsAString nsstr;
  53     PRUnichar *buf;
  54     nsresult nsres;
  55
  56     enum {
  57         CMP_EQ,
  58         CMP_LT,
  59         CMP_LTE,
  60         CMP_GT,
  61         CMP_GTE
  62     } cmpt = CMP_EQ;
  63
  64     static const PRUnichar endifW[] = {'<','!','[','e','n','d','i','f',']'};
  65
  66     if(comment[0] != '[' || comment[1] != 'i' || comment[2] != 'f')
  67         return FALSE;
  68
  69     ptr = comment+3;
  70     while(isspaceW(*ptr))
  71         ptr++;
  72
  73     if(ptr[0] == 'l' && ptr[1] == 't') {
  74         ptr += 2;
  75         if(*ptr == 'e') {
  76             cmpt = CMP_LTE;
  77             ptr++;
  78         }else {
  79             cmpt = CMP_LT;
  80         }
  81     }else if(ptr[0] == 'g' && ptr[1] == 't') {
  82         ptr += 2;
  83         if(*ptr == 'e') {
  84             cmpt = CMP_GTE;
  85             ptr++;
  86         }else {
  87             cmpt = CMP_GT;
  88         }
  89     }
  90
  91     if(!isspaceW(*ptr++))
  92         return FALSE;
  93     while(isspaceW(*ptr))
  94         ptr++;
  95
  96     if(ptr[0] != 'I' || ptr[1] != 'E')
  97         return FALSE;
  98
  99     ptr +=2;
 100     if(!isspaceW(*ptr++))
 101         return FALSE;
 102     while(isspaceW(*ptr))
 103         ptr++;
 104
 105     if(!isdigitW(*ptr))
 106         return FALSE;
 107     while(isdigitW(*ptr))
 108         majorv = majorv*10 + (*ptr++ - '0');
 109
 110     if(*ptr == '.') {
 111         ptr++;
 112         if(!isdigitW(*ptr))
 113             return FALSE;
 114         while(isdigitW(*ptr))
 115             minorv = minorv*10 + (*ptr++ - '0');
 116     }
 117
 118     while(isspaceW(*ptr))
 119         ptr++;
 120     if(ptr[0] != ']' || ptr[1] != '>')
 121         return FALSE;
 122     ptr += 2;
 123
 124     len = strlenW(ptr);
 125     if(len < sizeof(endifW)/sizeof(WCHAR))
 126         return FALSE;
 127
 128     end = ptr + len-sizeof(endifW)/sizeof(WCHAR);
 129     if(memcmp(end, endifW, sizeof(endifW)))
 130         return FALSE;
 131
 132     switch(cmpt) {
 133     case CMP_EQ:
 134         if(majorv == IE_MAJOR_VERSION && minorv == IE_MINOR_VERSION)
 135             break;
 136         return FALSE;
 137     case CMP_LT:
 138         if(majorv > IE_MAJOR_VERSION)
 139             break;
 140         if(majorv == IE_MAJOR_VERSION && minorv > IE_MINOR_VERSION)
 141             break;
 142         return FALSE;
 143     case CMP_LTE:
 144         if(majorv > IE_MAJOR_VERSION)
 145             break;
 146         if(majorv == IE_MAJOR_VERSION && minorv >= IE_MINOR_VERSION)
 147             break;
 148         return FALSE;
 149     case CMP_GT:
 150         if(majorv < IE_MAJOR_VERSION)
 151             break;
 152         if(majorv == IE_MAJOR_VERSION && minorv < IE_MINOR_VERSION)
 153             break;
 154         return FALSE;
 155     case CMP_GTE:
 156         if(majorv < IE_MAJOR_VERSION)
 157             break;
 158         if(majorv == IE_MAJOR_VERSION && minorv <= IE_MINOR_VERSION)
 159             break;
 160         return FALSE;
 161     }
 162
 163     buf = heap_alloc((end-ptr+1)*sizeof(WCHAR));
 164     if(!buf)
 165         return FALSE;
 166
 167     memcpy(buf, ptr, (end-ptr)*sizeof(WCHAR));
 168     buf[end-ptr] = 0;
 169     nsAString_InitDepend(&nsstr, buf);
 170
 171     /* FIXME: Find better way to insert HTML to document. */
 172     nsres = nsIDOMHTMLDocument_Write(doc->nsdoc, &nsstr);
 173     nsAString_Finish(&nsstr);
 174     heap_free(buf);
 175     if(NS_FAILED(nsres)) {
 176         ERR("Write failed: %08x\n", nsres);
 177         return FALSE;
 178     }
 179
 180     return TRUE;
 181 }
 182
 183 static nsresult run_insert_comment(HTMLDocumentNode *doc, nsISupports *comment_iface, nsISupports *arg2)
 184 {
 185     const PRUnichar *comment;
 186     nsIDOMComment *nscomment;
 187     nsAString comment_str;
 188     BOOL remove_comment;
 189     nsresult nsres;
 190
 191     nsres = nsISupports_QueryInterface(comment_iface, &IID_nsIDOMComment, (void**)&nscomment);
 192     if(NS_FAILED(nsres)) {
 193         ERR("Could not get nsIDOMComment iface:%08x\n", nsres);
 194         return nsres;
 195     }
 196
 197     nsAString_Init(&comment_str, NULL);
 198     nsres = nsIDOMComment_GetData(nscomment, &comment_str);
 199     if(NS_FAILED(nsres))
 200         return nsres;
 201
 202     nsAString_GetData(&comment_str, &comment);
 203     remove_comment = handle_insert_comment(doc, comment);
 204     nsAString_Finish(&comment_str);
 205
 206     if(remove_comment) {
 207         nsIDOMNode *nsparent, *tmp;
 208         nsAString magic_str;
 209
 210         static const PRUnichar remove_comment_magicW[] =
 211             {'#','!','w','i','n','e', 'r','e','m','o','v','e','!','#',0};
 212
 213         nsAString_InitDepend(&magic_str, remove_comment_magicW);
 214         nsres = nsIDOMComment_SetData(nscomment, &magic_str);
 215         nsAString_Finish(&magic_str);
 216         if(NS_FAILED(nsres))
 217             ERR("SetData failed: %08x\n", nsres);
 218
 219         nsIDOMComment_GetParentNode(nscomment, &nsparent);
 220         if(nsparent) {
 221             nsIDOMNode_RemoveChild(nsparent, (nsIDOMNode*)nscomment, &tmp);
 222             nsIDOMNode_Release(nsparent);
 223             nsIDOMNode_Release(tmp);
 224         }
 225     }
 226
 227     nsIDOMComment_Release(nscomment);
 228     return NS_OK;
 229 }
 230
 231 static nsresult run_bind_to_tree(HTMLDocumentNode *doc, nsISupports *nsiface, nsISupports *arg2)
 232 {
 233     nsIDOMNode *nsnode;
 234     HTMLDOMNode *node;
 235     nsresult nsres;
 236     HRESULT hres;
 237
 238     TRACE("(%p)->(%p)\n", doc, nsiface);
 239
 240     nsres = nsISupports_QueryInterface(nsiface, &IID_nsIDOMNode, (void**)&nsnode);
 241     if(NS_FAILED(nsres))
 242         return nsres;
 243
 244     hres = get_node(doc, nsnode, TRUE, &node);
 245     nsIDOMNode_Release(nsnode);
 246     if(FAILED(hres)) {
 247         ERR("Could not get node\n");
 248         return nsres;
 249     }
 250
 251     if(node->vtbl->bind_to_tree)
 252         node->vtbl->bind_to_tree(node);
 253
 254     return nsres;
 255 }
 256
 257 /* Calls undocumented 69 cmd of CGID_Explorer */
 258 static void call_explorer_69(HTMLDocumentObj *doc)
 259 {
 260     IOleCommandTarget *olecmd;
 261     VARIANT var;
 262     HRESULT hres;
 263
 264     if(!doc->client)
 265         return;
 266
 267     hres = IOleClientSite_QueryInterface(doc->client, &IID_IOleCommandTarget, (void**)&olecmd);
 268     if(FAILED(hres))
 269         return;
 270
 271     VariantInit(&var);
 272     hres = IOleCommandTarget_Exec(olecmd, &CGID_Explorer, 69, 0, NULL, &var);
 273     IOleCommandTarget_Release(olecmd);
 274     if(SUCCEEDED(hres) && V_VT(&var) != VT_NULL)
 275         FIXME("handle result\n");
 276 }
 277
 278 static void parse_complete(HTMLDocumentObj *doc)
 279 {
 280     TRACE("(%p)\n", doc);
 281
 282     if(doc->usermode == EDITMODE)
 283         init_editor(&doc->basedoc);
 284
 285     call_explorer_69(doc);
 286     if(doc->view_sink)
 287         IAdviseSink_OnViewChange(doc->view_sink, DVASPECT_CONTENT, -1);
 288     call_property_onchanged(&doc->basedoc.cp_propnotif, 1005);
 289     call_explorer_69(doc);
 290
 291     /* FIXME: IE7 calls EnableModelless(TRUE), EnableModelless(FALSE) and sets interactive state here */
 292 }
 293
 294 static nsresult run_end_load(HTMLDocumentNode *This, nsISupports *arg1, nsISupports *arg2)
 295 {
 296     TRACE("(%p)\n", This);
 297
 298     if(!This->basedoc.doc_obj)
 299         return NS_OK;
 300
 301     if(This == This->basedoc.doc_obj->basedoc.doc_node) {
 302         /*
 303          * This should be done in the worker thread that parses HTML,
 304          * but we don't have such thread (Gecko parses HTML for us).
 305          */
 306         parse_complete(This->basedoc.doc_obj);
 307     }
 308
 309     set_ready_state(This->basedoc.window, READYSTATE_INTERACTIVE);
 310     return NS_OK;
 311 }
 312
 313 static nsresult run_insert_script(HTMLDocumentNode *doc, nsISupports *script_iface, nsISupports *parser_iface)
 314 {
 315     nsIDOMHTMLScriptElement *nsscript;
 316     nsIParser *nsparser = NULL;
 317     nsresult nsres;
 318
 319     TRACE("(%p)->(%p)\n", doc, script_iface);
 320
 321     nsres = nsISupports_QueryInterface(script_iface, &IID_nsIDOMHTMLScriptElement, (void**)&nsscript);
 322     if(NS_FAILED(nsres)) {
 323         ERR("Could not get nsIDOMHTMLScriptElement: %08x\n", nsres);
 324         return nsres;
 325     }
 326
 327     if(parser_iface) {
 328         nsres = nsISupports_QueryInterface(parser_iface, &IID_nsIParser, (void**)&nsparser);
 329         if(NS_FAILED(nsres)) {
 330             ERR("Could not get nsIParser iface: %08x\n", nsres);
 331             nsparser = NULL;
 332         }
 333     }
 334
 335     if(nsparser)
 336         nsIParser_BeginEvaluatingParserInsertedScript(nsparser);
 337
 338     doc_insert_script(doc->basedoc.window, nsscript);
 339
 340     if(nsparser) {
 341         nsIParser_EndEvaluatingParserInsertedScript(nsparser);
 342         nsIParser_Release(nsparser);
 343     }
 344
 345     nsIDOMHTMLScriptElement_Release(nsscript);
 346     return NS_OK;
 347 }
 348
 349 typedef struct nsRunnable nsRunnable;
 350
 351 typedef nsresult (*runnable_proc_t)(HTMLDocumentNode*,nsISupports*,nsISupports*);
 352
 353 struct nsRunnable {
 354     nsIRunnable  nsIRunnable_iface;
 355
 356     LONG ref;
 357
 358     runnable_proc_t proc;
 359
 360     HTMLDocumentNode *doc;
 361     nsISupports *arg1;
 362     nsISupports *arg2;
 363 };
 364
 365 static inline nsRunnable *impl_from_nsIRunnable(nsIRunnable *iface)
 366 {
 367     return CONTAINING_RECORD(iface, nsRunnable, nsIRunnable_iface);
 368 }
 369
 370 static nsresult NSAPI nsRunnable_QueryInterface(nsIRunnable *iface,
 371         nsIIDRef riid, void **result)
 372 {
 373     nsRunnable *This = impl_from_nsIRunnable(iface);
 374
 375     if(IsEqualGUID(riid, &IID_nsISupports)) {
 376         TRACE("(%p)->(IID_nsISupports %p)\n", This, result);
 377         *result = &This->nsIRunnable_iface;
 378     }else if(IsEqualGUID(riid, &IID_nsIRunnable)) {
 379         TRACE("(%p)->(IID_nsIRunnable %p)\n", This, result);
 380         *result = &This->nsIRunnable_iface;
 381     }else {
 382         *result = NULL;
 383         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), result);
 384         return NS_NOINTERFACE;
 385     }
 386
 387     nsISupports_AddRef((nsISupports*)*result);
 388     return NS_OK;
 389 }
 390
 391 static nsrefcnt NSAPI nsRunnable_AddRef(nsIRunnable *iface)
 392 {
 393     nsRunnable *This = impl_from_nsIRunnable(iface);
 394     LONG ref = InterlockedIncrement(&This->ref);
 395
 396     TRACE("(%p) ref=%d\n", This, ref);
 397
 398     return ref;
 399 }
 400
 401 static nsrefcnt NSAPI nsRunnable_Release(nsIRunnable *iface)
 402 {
 403     nsRunnable *This = impl_from_nsIRunnable(iface);
 404     LONG ref = InterlockedDecrement(&This->ref);
 405
 406     TRACE("(%p) ref=%d\n", This, ref);
 407
 408     if(!ref) {
 409         htmldoc_release(&This->doc->basedoc);
 410         if(This->arg1)
 411             nsISupports_Release(This->arg1);
 412         if(This->arg2)
 413             nsISupports_Release(This->arg2);
 414         heap_free(This);
 415     }
 416
 417     return ref;
 418 }
 419
 420 static nsresult NSAPI nsRunnable_Run(nsIRunnable *iface)
 421 {
 422     nsRunnable *This = impl_from_nsIRunnable(iface);
 423
 424     return This->proc(This->doc, This->arg1, This->arg2);
 425 }
 426
 427 static const nsIRunnableVtbl nsRunnableVtbl = {
 428     nsRunnable_QueryInterface,
 429     nsRunnable_AddRef,
 430     nsRunnable_Release,
 431     nsRunnable_Run
 432 };
 433
 434 static void add_script_runner(HTMLDocumentNode *This, runnable_proc_t proc, nsISupports *arg1, nsISupports *arg2)
 435 {
 436     nsRunnable *runnable;
 437
 438     runnable = heap_alloc_zero(sizeof(*runnable));
 439     if(!runnable)
 440         return;
 441
 442     runnable->nsIRunnable_iface.lpVtbl = &nsRunnableVtbl;
 443     runnable->ref = 1;
 444
 445     htmldoc_addref(&This->basedoc);
 446     runnable->doc = This;
 447     runnable->proc = proc;
 448
 449     if(arg1)
 450         nsISupports_AddRef(arg1);
 451     runnable->arg1 = arg1;
 452
 453     if(arg2)
 454         nsISupports_AddRef(arg2);
 455     runnable->arg2 = arg2;
 456
 457     nsIContentUtils_AddScriptRunner(content_utils, &runnable->nsIRunnable_iface);
 458
 459     nsIRunnable_Release(&runnable->nsIRunnable_iface);
 460 }
 461
 462 static inline HTMLDocumentNode *impl_from_nsIDocumentObserver(nsIDocumentObserver *iface)
 463 {
 464     return CONTAINING_RECORD(iface, HTMLDocumentNode, nsIDocumentObserver_iface);
 465 }
 466
 467 static nsresult NSAPI nsDocumentObserver_QueryInterface(nsIDocumentObserver *iface,
 468         nsIIDRef riid, void **result)
 469 {
 470     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 471
 472     if(IsEqualGUID(&IID_nsISupports, riid)) {
 473         TRACE("(%p)->(IID_nsISupports, %p)\n", This, result);
 474         *result = &This->nsIDocumentObserver_iface;
 475     }else if(IsEqualGUID(&IID_nsIMutationObserver, riid)) {
 476         TRACE("(%p)->(IID_nsIMutationObserver %p)\n", This, result);
 477         *result = &This->nsIDocumentObserver_iface;
 478     }else if(IsEqualGUID(&IID_nsIDocumentObserver, riid)) {
 479         TRACE("(%p)->(IID_nsIDocumentObserver %p)\n", This, result);
 480         *result = &This->nsIDocumentObserver_iface;
 481     }else {
 482         *result = NULL;
 483         TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), result);
 484         return NS_NOINTERFACE;
 485     }
 486
 487     htmldoc_addref(&This->basedoc);
 488     return NS_OK;
 489 }
 490
 491 static nsrefcnt NSAPI nsDocumentObserver_AddRef(nsIDocumentObserver *iface)
 492 {
 493     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 494     return htmldoc_addref(&This->basedoc);
 495 }
 496
 497 static nsrefcnt NSAPI nsDocumentObserver_Release(nsIDocumentObserver *iface)
 498 {
 499     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 500     return htmldoc_release(&This->basedoc);
 501 }
 502
 503 static void NSAPI nsDocumentObserver_CharacterDataWillChange(nsIDocumentObserver *iface,
 504         nsIDocument *aDocument, nsIContent *aContent, void /*CharacterDataChangeInfo*/ *aInfo)
 505 {
 506 }
 507
 508 static void NSAPI nsDocumentObserver_CharacterDataChanged(nsIDocumentObserver *iface,
 509         nsIDocument *aDocument, nsIContent *aContent, void /*CharacterDataChangeInfo*/ *aInfo)
 510 {
 511 }
 512
 513 static void NSAPI nsDocumentObserver_AttributeWillChange(nsIDocumentObserver *iface, nsIDocument *aDocument,
 514         nsIContent *aContent, PRInt32 aNameSpaceID, nsIAtom *aAttribute, PRInt32 aModType)
 515 {
 516 }
 517
 518 static void NSAPI nsDocumentObserver_AttributeChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 519         nsIContent *aContent, PRInt32 aNameSpaceID, nsIAtom *aAttribute, PRInt32 aModType)
 520 {
 521 }
 522
 523 static void NSAPI nsDocumentObserver_ContentAppended(nsIDocumentObserver *iface, nsIDocument *aDocument,
 524         nsIContent *aContainer, nsIContent *aFirstNewContent, PRInt32 aNewIndexInContainer)
 525 {
 526 }
 527
 528 static void NSAPI nsDocumentObserver_ContentInserted(nsIDocumentObserver *iface, nsIDocument *aDocument,
 529         nsIContent *aContainer, nsIContent *aChild, PRInt32 aIndexInContainer)
 530 {
 531 }
 532
 533 static void NSAPI nsDocumentObserver_ContentRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 534         nsIContent *aContainer, nsIContent *aChild, PRInt32 aIndexInContainer,
 535         nsIContent *aProviousSibling)
 536 {
 537 }
 538
 539 static void NSAPI nsDocumentObserver_NodeWillBeDestroyed(nsIDocumentObserver *iface, const nsINode *aNode)
 540 {
 541 }
 542
 543 static void NSAPI nsDocumentObserver_ParentChainChanged(nsIDocumentObserver *iface, nsIContent *aContent)
 544 {
 545 }
 546
 547 static void NSAPI nsDocumentObserver_BeginUpdate(nsIDocumentObserver *iface, nsIDocument *aDocument,
 548         nsUpdateType aUpdateType)
 549 {
 550 }
 551
 552 static void NSAPI nsDocumentObserver_EndUpdate(nsIDocumentObserver *iface, nsIDocument *aDocument,
 553         nsUpdateType aUpdateType)
 554 {
 555 }
 556
 557 static void NSAPI nsDocumentObserver_BeginLoad(nsIDocumentObserver *iface, nsIDocument *aDocument)
 558 {
 559 }
 560
 561 static void NSAPI nsDocumentObserver_EndLoad(nsIDocumentObserver *iface, nsIDocument *aDocument)
 562 {
 563     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 564
 565     TRACE("(%p)\n", This);
 566
 567     if(This->skip_mutation_notif)
 568         return;
 569
 570     This->content_ready = TRUE;
 571     add_script_runner(This, run_end_load, NULL, NULL);
 572 }
 573
 574 static void NSAPI nsDocumentObserver_ContentStatesChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 575         nsIContent *aContent1, nsIContent *aContent2, nsEventStates aStateMask)
 576 {
 577 }
 578
 579 static void NSAPI nsDocumentObserver_DocumentStatesChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 580         nsEventStates aStateMask)
 581 {
 582 }
 583
 584 static void NSAPI nsDocumentObserver_StyleSheetAdded(nsIDocumentObserver *iface, nsIDocument *aDocument,
 585         nsIStyleSheet *aStyleSheet, PRBool aDocumentSheet)
 586 {
 587 }
 588
 589 static void NSAPI nsDocumentObserver_StyleSheetRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 590         nsIStyleSheet *aStyleSheet, PRBool aDocumentSheet)
 591 {
 592 }
 593
 594 static void NSAPI nsDocumentObserver_StyleSheetApplicableStateChanged(nsIDocumentObserver *iface,
 595         nsIDocument *aDocument, nsIStyleSheet *aStyleSheet, PRBool aApplicable)
 596 {
 597 }
 598
 599 static void NSAPI nsDocumentObserver_StyleRuleChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 600         nsIStyleSheet *aStyleSheet, nsIStyleRule *aOldStyleRule, nsIStyleSheet *aNewStyleRule)
 601 {
 602 }
 603
 604 static void NSAPI nsDocumentObserver_StyleRuleAdded(nsIDocumentObserver *iface, nsIDocument *aDocument,
 605         nsIStyleSheet *aStyleSheet, nsIStyleRule *aStyleRule)
 606 {
 607 }
 608
 609 static void NSAPI nsDocumentObserver_StyleRuleRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 610         nsIStyleSheet *aStyleSheet, nsIStyleRule *aStyleRule)
 611 {
 612 }
 613
 614 static void NSAPI nsDocumentObserver_BindToDocument(nsIDocumentObserver *iface, nsIDocument *aDocument,
 615         nsIContent *aContent)
 616 {
 617     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 618     nsIDOMHTMLIFrameElement *nsiframe;
 619     nsIDOMHTMLFrameElement *nsframe;
 620     nsIDOMComment *nscomment;
 621     nsIDOMElement *nselem;
 622     nsresult nsres;
 623
 624     TRACE("(%p)\n", This);
 625
 626     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMElement, (void**)&nselem);
 627     if(NS_SUCCEEDED(nsres)) {
 628         check_event_attr(This, nselem);
 629         nsIDOMElement_Release(nselem);
 630     }
 631
 632     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMComment, (void**)&nscomment);
 633     if(NS_SUCCEEDED(nsres)) {
 634         TRACE("comment node\n");
 635
 636         add_script_runner(This, run_insert_comment, (nsISupports*)nscomment, NULL);
 637         nsIDOMComment_Release(nscomment);
 638     }
 639
 640     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLIFrameElement, (void**)&nsiframe);
 641     if(NS_SUCCEEDED(nsres)) {
 642         TRACE("iframe node\n");
 643
 644         add_script_runner(This, run_bind_to_tree, (nsISupports*)nsiframe, NULL);
 645         nsIDOMHTMLIFrameElement_Release(nsiframe);
 646     }
 647
 648     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLFrameElement, (void**)&nsframe);
 649     if(NS_SUCCEEDED(nsres)) {
 650         TRACE("frame node\n");
 651
 652         add_script_runner(This, run_bind_to_tree, (nsISupports*)nsframe, NULL);
 653         nsIDOMHTMLFrameElement_Release(nsframe);
 654     }
 655 }
 656
 657 static nsresult NSAPI nsDocumentObserver_DoneAddingChildren(nsIDocumentObserver *iface, nsIContent *aContent,
 658         PRBool aHaveNotified, nsIParser *aParser)
 659 {
 660     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 661     nsIDOMHTMLScriptElement *nsscript;
 662     nsresult nsres;
 663
 664     TRACE("(%p)->(%p %x)\n", This, aContent, aHaveNotified);
 665
 666     nsres = nsISupports_QueryInterface(aContent, &IID_nsIDOMHTMLScriptElement, (void**)&nsscript);
 667     if(NS_SUCCEEDED(nsres)) {
 668         TRACE("script node\n");
 669
 670         add_script_runner(This, run_insert_script, (nsISupports*)nsscript, (nsISupports*)aParser);
 671         nsIDOMHTMLScriptElement_Release(nsscript);
 672     }
 673
 674     return NS_OK;
 675 }
 676
 677 static const nsIDocumentObserverVtbl nsDocumentObserverVtbl = {
 678     nsDocumentObserver_QueryInterface,
 679     nsDocumentObserver_AddRef,
 680     nsDocumentObserver_Release,
 681     nsDocumentObserver_CharacterDataWillChange,
 682     nsDocumentObserver_CharacterDataChanged,
 683     nsDocumentObserver_AttributeWillChange,
 684     nsDocumentObserver_AttributeChanged,
 685     nsDocumentObserver_ContentAppended,
 686     nsDocumentObserver_ContentInserted,
 687     nsDocumentObserver_ContentRemoved,
 688     nsDocumentObserver_NodeWillBeDestroyed,
 689     nsDocumentObserver_ParentChainChanged,
 690     nsDocumentObserver_BeginUpdate,
 691     nsDocumentObserver_EndUpdate,
 692     nsDocumentObserver_BeginLoad,
 693     nsDocumentObserver_EndLoad,
 694     nsDocumentObserver_ContentStatesChanged,
 695     nsDocumentObserver_DocumentStatesChanged,
 696     nsDocumentObserver_StyleSheetAdded,
 697     nsDocumentObserver_StyleSheetRemoved,
 698     nsDocumentObserver_StyleSheetApplicableStateChanged,
 699     nsDocumentObserver_StyleRuleChanged,
 700     nsDocumentObserver_StyleRuleAdded,
 701     nsDocumentObserver_StyleRuleRemoved,
 702     nsDocumentObserver_BindToDocument,
 703     nsDocumentObserver_DoneAddingChildren
 704 };
 705
 706 void init_document_mutation(HTMLDocumentNode *doc)
 707 {
 708     nsIDocument *nsdoc;
 709     nsresult nsres;
 710
 711     doc->nsIDocumentObserver_iface.lpVtbl = &nsDocumentObserverVtbl;
 712
 713     nsres = nsIDOMHTMLDocument_QueryInterface(doc->nsdoc, &IID_nsIDocument, (void**)&nsdoc);
 714     if(NS_FAILED(nsres)) {
 715         ERR("Could not get nsIDocument: %08x\n", nsres);
 716         return;
 717     }
 718
 719     nsIContentUtils_AddDocumentObserver(content_utils, nsdoc, &doc->nsIDocumentObserver_iface);
 720     nsIDocument_Release(nsdoc);
 721 }
 722
 723 void release_document_mutation(HTMLDocumentNode *doc)
 724 {
 725     nsIDocument *nsdoc;
 726     nsresult nsres;
 727
 728     nsres = nsIDOMHTMLDocument_QueryInterface(doc->nsdoc, &IID_nsIDocument, (void**)&nsdoc);
 729     if(NS_FAILED(nsres)) {
 730         ERR("Could not get nsIDocument: %08x\n", nsres);
 731         return;
 732     }
 733
 734     nsIContentUtils_RemoveDocumentObserver(content_utils, nsdoc, &doc->nsIDocumentObserver_iface);
 735     nsIDocument_Release(nsdoc);
 736 }
 737
 738 void init_mutation(nsIComponentManager *component_manager)
 739 {
 740     nsIFactory *factory;
 741     nsresult nsres;
 742
 743     if(!component_manager) {
 744         if(content_utils) {
 745             nsIContentUtils_Release(content_utils);
 746             content_utils = NULL;
 747         }
 748         return;
 749     }
 750
 751     nsres = nsIComponentManager_GetClassObject(component_manager, &NS_ICONTENTUTILS_CID,
 752             &IID_nsIFactory, (void**)&factory);
 753     if(NS_FAILED(nsres)) {
 754         ERR("Could not create nsIContentUtils service: %08x\n", nsres);
 755         return;
 756     }
 757
 758     nsres = nsIFactory_CreateInstance(factory, NULL, &IID_nsIContentUtils, (void**)&content_utils);
 759     nsIFactory_Release(factory);
 760     if(NS_FAILED(nsres))
 761         ERR("Could not create nsIContentUtils instance: %08x\n", nsres);
 762 }