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 #include <assert.h>
  23
  24 #define COBJMACROS
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winuser.h"
  29 #include "winreg.h"
  30 #include "ole2.h"
  31 #include "shlguid.h"
  32 #include "wininet.h"
  33
  34 #include "mshtml_private.h"
  35 #include "htmlscript.h"
  36 #include "htmlevent.h"
  37 #include "binding.h"
  38
  39 #include "wine/debug.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  42
  43 const compat_mode_info_t compat_mode_info[] = {
  44     { 5, 7 },   /* DOCMODE_QUIRKS */
  45     { 5, 5 },   /* DOCMODE_IE5 */
  46     { 7, 7 },   /* DOCMODE_IE7 */
  47     { 8, 8 },   /* DOCMODE_IE8 */
  48     { 9, 9 },   /* DOCMODE_IE8 */
  49     { 10, 10 }, /* DOCMODE_IE10 */
  50     { 11, 11 }  /* DOCMODE_IE11 */
  51 };
  52
  53 static const IID NS_ICONTENTUTILS_CID =
  54     {0x762C4AE7,0xB923,0x422F,{0xB9,0x7E,0xB9,0xBF,0xC1,0xEF,0x7B,0xF0}};
  55
  56 static nsIContentUtils *content_utils;
  57
  58 static PRUnichar *handle_insert_comment(HTMLDocumentNode *doc, const PRUnichar *comment)
  59 {
  60     unsigned majorv = 0, minorv = 0, compat_version;
  61     const PRUnichar *ptr, *end;
  62     PRUnichar *buf;
  63     DWORD len;
  64
  65     enum {
  66         CMP_EQ,
  67         CMP_LT,
  68         CMP_LTE,
  69         CMP_GT,
  70         CMP_GTE
  71     } cmpt = CMP_EQ;
  72
  73     static const PRUnichar endifW[] = {'<','!','[','e','n','d','i','f',']'};
  74
  75     if(comment[0] != '[' || comment[1] != 'i' || comment[2] != 'f')
  76         return NULL;
  77
  78     ptr = comment+3;
  79     while(isspaceW(*ptr))
  80         ptr++;
  81
  82     if(ptr[0] == 'l' && ptr[1] == 't') {
  83         ptr += 2;
  84         if(*ptr == 'e') {
  85             cmpt = CMP_LTE;
  86             ptr++;
  87         }else {
  88             cmpt = CMP_LT;
  89         }
  90     }else if(ptr[0] == 'g' && ptr[1] == 't') {
  91         ptr += 2;
  92         if(*ptr == 'e') {
  93             cmpt = CMP_GTE;
  94             ptr++;
  95         }else {
  96             cmpt = CMP_GT;
  97         }
  98     }
  99
 100     if(!isspaceW(*ptr++))
 101         return NULL;
 102     while(isspaceW(*ptr))
 103         ptr++;
 104
 105     if(ptr[0] != 'I' || ptr[1] != 'E')
 106         return NULL;
 107
 108     ptr +=2;
 109     if(!isspaceW(*ptr++))
 110         return NULL;
 111     while(isspaceW(*ptr))
 112         ptr++;
 113
 114     if(!isdigitW(*ptr))
 115         return NULL;
 116     while(isdigitW(*ptr))
 117         majorv = majorv*10 + (*ptr++ - '0');
 118
 119     if(*ptr == '.') {
 120         ptr++;
 121         if(!isdigitW(*ptr))
 122             return NULL;
 123         while(isdigitW(*ptr))
 124             minorv = minorv*10 + (*ptr++ - '0');
 125     }
 126
 127     while(isspaceW(*ptr))
 128         ptr++;
 129     if(ptr[0] != ']' || ptr[1] != '>')
 130         return NULL;
 131     ptr += 2;
 132
 133     len = strlenW(ptr);
 134     if(len < ARRAY_SIZE(endifW))
 135         return NULL;
 136
 137     end = ptr + len - ARRAY_SIZE(endifW);
 138     if(memcmp(end, endifW, sizeof(endifW)))
 139         return NULL;
 140
 141     compat_version = compat_mode_info[doc->document_mode].ie_version;
 142
 143     switch(cmpt) {
 144     case CMP_EQ:
 145         if(compat_version == majorv && !minorv)
 146             break;
 147         return NULL;
 148     case CMP_LT:
 149         if(compat_version < majorv || (compat_version == majorv && minorv))
 150             break;
 151         return NULL;
 152     case CMP_LTE:
 153         if(compat_version <= majorv)
 154             break;
 155         return NULL;
 156     case CMP_GT:
 157         if(compat_version > majorv)
 158             break;
 159         return NULL;
 160     case CMP_GTE:
 161         if(compat_version >= majorv || (compat_version == majorv && !minorv))
 162             break;
 163         return NULL;
 164     }
 165
 166     buf = heap_alloc((end-ptr+1)*sizeof(WCHAR));
 167     if(!buf)
 168         return NULL;
 169
 170     memcpy(buf, ptr, (end-ptr)*sizeof(WCHAR));
 171     buf[end-ptr] = 0;
 172
 173     return buf;
 174 }
 175
 176 static nsresult run_insert_comment(HTMLDocumentNode *doc, nsISupports *comment_iface, nsISupports *arg2)
 177 {
 178     const PRUnichar *comment;
 179     nsIDOMComment *nscomment;
 180     PRUnichar *replace_html;
 181     nsAString comment_str;
 182     nsresult nsres;
 183
 184     nsres = nsISupports_QueryInterface(comment_iface, &IID_nsIDOMComment, (void**)&nscomment);
 185     if(NS_FAILED(nsres)) {
 186         ERR("Could not get nsIDOMComment iface:%08x\n", nsres);
 187         return nsres;
 188     }
 189
 190     nsAString_Init(&comment_str, NULL);
 191     nsres = nsIDOMComment_GetData(nscomment, &comment_str);
 192     if(NS_FAILED(nsres))
 193         return nsres;
 194
 195     nsAString_GetData(&comment_str, &comment);
 196     replace_html = handle_insert_comment(doc, comment);
 197     nsAString_Finish(&comment_str);
 198
 199     if(replace_html) {
 200         HRESULT hres;
 201
 202         hres = replace_node_by_html(doc->nsdoc, (nsIDOMNode*)nscomment, replace_html);
 203         heap_free(replace_html);
 204         if(FAILED(hres))
 205             nsres = NS_ERROR_FAILURE;
 206     }
 207
 208
 209     nsIDOMComment_Release(nscomment);
 210     return nsres;
 211 }
 212
 213 static nsresult run_bind_to_tree(HTMLDocumentNode *doc, nsISupports *nsiface, nsISupports *arg2)
 214 {
 215     nsIDOMNode *nsnode;
 216     HTMLDOMNode *node;
 217     nsresult nsres;
 218     HRESULT hres;
 219
 220     TRACE("(%p)->(%p)\n", doc, nsiface);
 221
 222     nsres = nsISupports_QueryInterface(nsiface, &IID_nsIDOMNode, (void**)&nsnode);
 223     if(NS_FAILED(nsres))
 224         return nsres;
 225
 226     hres = get_node(nsnode, TRUE, &node);
 227     nsIDOMNode_Release(nsnode);
 228     if(FAILED(hres)) {
 229         ERR("Could not get node\n");
 230         return nsres;
 231     }
 232
 233     if(node->vtbl->bind_to_tree)
 234         node->vtbl->bind_to_tree(node);
 235
 236     node_release(node);
 237     return nsres;
 238 }
 239
 240 /* Calls undocumented 69 cmd of CGID_Explorer */
 241 static void call_explorer_69(HTMLDocumentObj *doc)
 242 {
 243     IOleCommandTarget *olecmd;
 244     VARIANT var;
 245     HRESULT hres;
 246
 247     if(!doc->client)
 248         return;
 249
 250     hres = IOleClientSite_QueryInterface(doc->client, &IID_IOleCommandTarget, (void**)&olecmd);
 251     if(FAILED(hres))
 252         return;
 253
 254     VariantInit(&var);
 255     hres = IOleCommandTarget_Exec(olecmd, &CGID_Explorer, 69, 0, NULL, &var);
 256     IOleCommandTarget_Release(olecmd);
 257     if(SUCCEEDED(hres) && V_VT(&var) != VT_NULL)
 258         FIXME("handle result\n");
 259 }
 260
 261 static void parse_complete(HTMLDocumentObj *doc)
 262 {
 263     TRACE("(%p)\n", doc);
 264
 265     if(doc->usermode == EDITMODE)
 266         init_editor(&doc->basedoc);
 267
 268     call_explorer_69(doc);
 269     if(doc->view_sink)
 270         IAdviseSink_OnViewChange(doc->view_sink, DVASPECT_CONTENT, -1);
 271     call_property_onchanged(&doc->basedoc.cp_container, 1005);
 272     call_explorer_69(doc);
 273
 274     if(doc->webbrowser && doc->usermode != EDITMODE && !(doc->basedoc.window->load_flags & BINDING_REFRESH))
 275         IDocObjectService_FireNavigateComplete2(doc->doc_object_service, &doc->basedoc.window->base.IHTMLWindow2_iface, 0);
 276
 277     /* FIXME: IE7 calls EnableModelless(TRUE), EnableModelless(FALSE) and sets interactive state here */
 278 }
 279
 280 static nsresult run_end_load(HTMLDocumentNode *This, nsISupports *arg1, nsISupports *arg2)
 281 {
 282     TRACE("(%p)\n", This);
 283
 284     if(!This->basedoc.doc_obj)
 285         return NS_OK;
 286
 287     if(This == This->basedoc.doc_obj->basedoc.doc_node) {
 288         /*
 289          * This should be done in the worker thread that parses HTML,
 290          * but we don't have such thread (Gecko parses HTML for us).
 291          */
 292         parse_complete(This->basedoc.doc_obj);
 293     }
 294
 295     bind_event_scripts(This);
 296     set_ready_state(This->basedoc.window, READYSTATE_INTERACTIVE);
 297     return NS_OK;
 298 }
 299
 300 static nsresult run_insert_script(HTMLDocumentNode *doc, nsISupports *script_iface, nsISupports *parser_iface)
 301 {
 302     nsIDOMHTMLScriptElement *nsscript;
 303     HTMLScriptElement *script_elem;
 304     nsIParser *nsparser = NULL;
 305     script_queue_entry_t *iter;
 306     HTMLInnerWindow *window;
 307     nsresult nsres;
 308     HRESULT hres;
 309
 310     TRACE("(%p)->(%p)\n", doc, script_iface);
 311
 312     window = doc->window;
 313     if(!window)
 314         return NS_OK;
 315
 316     nsres = nsISupports_QueryInterface(script_iface, &IID_nsIDOMHTMLScriptElement, (void**)&nsscript);
 317     if(NS_FAILED(nsres)) {
 318         ERR("Could not get nsIDOMHTMLScriptElement: %08x\n", nsres);
 319         return nsres;
 320     }
 321
 322     if(parser_iface) {
 323         nsres = nsISupports_QueryInterface(parser_iface, &IID_nsIParser, (void**)&nsparser);
 324         if(NS_FAILED(nsres)) {
 325             ERR("Could not get nsIParser iface: %08x\n", nsres);
 326             nsparser = NULL;
 327         }
 328     }
 329
 330     hres = script_elem_from_nsscript(nsscript, &script_elem);
 331     nsIDOMHTMLScriptElement_Release(nsscript);
 332     if(FAILED(hres))
 333         return NS_ERROR_FAILURE;
 334
 335     if(nsparser) {
 336         nsIParser_BeginEvaluatingParserInsertedScript(nsparser);
 337         window->parser_callback_cnt++;
 338     }
 339
 340     IHTMLWindow2_AddRef(&window->base.IHTMLWindow2_iface);
 341
 342     doc_insert_script(window, script_elem, TRUE);
 343
 344     while(!list_empty(&window->script_queue)) {
 345         iter = LIST_ENTRY(list_head(&window->script_queue), script_queue_entry_t, entry);
 346         list_remove(&iter->entry);
 347         if(!iter->script->parsed)
 348             doc_insert_script(window, iter->script, TRUE);
 349         IHTMLScriptElement_Release(&iter->script->IHTMLScriptElement_iface);
 350         heap_free(iter);
 351     }
 352
 353     IHTMLWindow2_Release(&window->base.IHTMLWindow2_iface);
 354
 355     if(nsparser) {
 356         window->parser_callback_cnt--;
 357         nsIParser_EndEvaluatingParserInsertedScript(nsparser);
 358         nsIParser_Release(nsparser);
 359     }
 360
 361     IHTMLScriptElement_Release(&script_elem->IHTMLScriptElement_iface);
 362
 363     return NS_OK;
 364 }
 365
 366 /*
 367  * We may change document mode only in early stage of document lifetime.
 368  * Later attempts will not have an effect.
 369  */
 370 compat_mode_t lock_document_mode(HTMLDocumentNode *doc)
 371 {
 372     TRACE("%p: %d\n", doc, doc->document_mode);
 373
 374     doc->document_mode_locked = TRUE;
 375     return doc->document_mode;
 376 }
 377
 378 static void set_document_mode(HTMLDocumentNode *doc, compat_mode_t document_mode, BOOL lock)
 379 {
 380     if(doc->document_mode_locked) {
 381         WARN("attempting to set document mode %d on locked document %p\n", document_mode, doc);
 382         return;
 383     }
 384
 385     TRACE("%p: %d\n", doc, document_mode);
 386
 387     doc->document_mode = document_mode;
 388     if(lock)
 389         lock_document_mode(doc);
 390 }
 391
 392 static BOOL parse_ua_compatible(const WCHAR *p, compat_mode_t *r)
 393 {
 394     int v = 0;
 395
 396     static const WCHAR ie_eqW[] = {'I','E','='};
 397     static const WCHAR edgeW[] = {'e','d','g','e',0};
 398
 399     TRACE("%s\n", debugstr_w(p));
 400
 401     if(strncmpiW(ie_eqW, p, ARRAY_SIZE(ie_eqW)))
 402         return FALSE;
 403     p += 3;
 404
 405     if(!strcmpiW(p, edgeW)) {
 406         *r = COMPAT_MODE_IE11;
 407         return TRUE;
 408     }
 409
 410     while('0' <= *p && *p <= '9')
 411         v = v*10 + *(p++)-'0';
 412     if(*p || !v)
 413         return FALSE;
 414
 415     switch(v){
 416     case 5:
 417     case 6:
 418         *r = COMPAT_MODE_IE5;
 419         break;
 420     case 7:
 421         *r = COMPAT_MODE_IE7;
 422         break;
 423     case 8:
 424         *r = COMPAT_MODE_IE8;
 425         break;
 426     case 9:
 427         *r = COMPAT_MODE_IE9;
 428         break;
 429     case 10:
 430         *r = COMPAT_MODE_IE10;
 431         break;
 432     default:
 433         *r = v < 5 ? COMPAT_MODE_QUIRKS : COMPAT_MODE_IE11;
 434     }
 435
 436     return TRUE;
 437 }
 438
 439 void process_document_response_headers(HTMLDocumentNode *doc, IBinding *binding)
 440 {
 441     IWinInetHttpInfo *http_info;
 442     char buf[1024];
 443     DWORD size;
 444     HRESULT hres;
 445
 446     hres = IBinding_QueryInterface(binding, &IID_IWinInetHttpInfo, (void**)&http_info);
 447     if(FAILED(hres)) {
 448         TRACE("No IWinInetHttpInfo\n");
 449         return;
 450     }
 451
 452     size = sizeof(buf);
 453     strcpy(buf, "X-UA-Compatible");
 454     hres = IWinInetHttpInfo_QueryInfo(http_info, HTTP_QUERY_CUSTOM, buf, &size, NULL, NULL);
 455     if(hres == S_OK && size) {
 456         compat_mode_t document_mode;
 457         WCHAR *header;
 458
 459         TRACE("size %u\n", size);
 460
 461         header = heap_strdupAtoW(buf);
 462         if(header && parse_ua_compatible(header, &document_mode)) {
 463             TRACE("setting document mode %d\n", document_mode);
 464             doc->document_mode = document_mode;
 465         }
 466         heap_free(header);
 467     }
 468
 469     IWinInetHttpInfo_Release(http_info);
 470 }
 471
 472 static void process_meta_element(HTMLDocumentNode *doc, nsIDOMHTMLMetaElement *meta_element)
 473 {
 474     nsAString http_equiv_str, content_str;
 475     nsresult nsres;
 476
 477     static const WCHAR x_ua_compatibleW[] = {'x','-','u','a','-','c','o','m','p','a','t','i','b','l','e',0};
 478
 479     nsAString_Init(&http_equiv_str, NULL);
 480     nsAString_Init(&content_str, NULL);
 481     nsres = nsIDOMHTMLMetaElement_GetHttpEquiv(meta_element, &http_equiv_str);
 482     if(NS_SUCCEEDED(nsres))
 483         nsres = nsIDOMHTMLMetaElement_GetContent(meta_element, &content_str);
 484
 485     if(NS_SUCCEEDED(nsres)) {
 486         const PRUnichar *http_equiv, *content;
 487
 488         nsAString_GetData(&http_equiv_str, &http_equiv);
 489         nsAString_GetData(&content_str, &content);
 490
 491         TRACE("%s: %s\n", debugstr_w(http_equiv), debugstr_w(content));
 492
 493         if(!strcmpiW(http_equiv, x_ua_compatibleW)) {
 494             compat_mode_t document_mode;
 495             if(parse_ua_compatible(content, &document_mode))
 496                 set_document_mode(doc, document_mode, TRUE);
 497             else
 498                 FIXME("Unsupported document mode %s\n", debugstr_w(content));
 499         }
 500     }
 501
 502     nsAString_Finish(&http_equiv_str);
 503     nsAString_Finish(&content_str);
 504 }
 505
 506 typedef struct nsRunnable nsRunnable;
 507
 508 typedef nsresult (*runnable_proc_t)(HTMLDocumentNode*,nsISupports*,nsISupports*);
 509
 510 struct nsRunnable {
 511     nsIRunnable  nsIRunnable_iface;
 512
 513     LONG ref;
 514
 515     runnable_proc_t proc;
 516
 517     HTMLDocumentNode *doc;
 518     nsISupports *arg1;
 519     nsISupports *arg2;
 520 };
 521
 522 static inline nsRunnable *impl_from_nsIRunnable(nsIRunnable *iface)
 523 {
 524     return CONTAINING_RECORD(iface, nsRunnable, nsIRunnable_iface);
 525 }
 526
 527 static nsresult NSAPI nsRunnable_QueryInterface(nsIRunnable *iface,
 528         nsIIDRef riid, void **result)
 529 {
 530     nsRunnable *This = impl_from_nsIRunnable(iface);
 531
 532     if(IsEqualGUID(riid, &IID_nsISupports)) {
 533         TRACE("(%p)->(IID_nsISupports %p)\n", This, result);
 534         *result = &This->nsIRunnable_iface;
 535     }else if(IsEqualGUID(riid, &IID_nsIRunnable)) {
 536         TRACE("(%p)->(IID_nsIRunnable %p)\n", This, result);
 537         *result = &This->nsIRunnable_iface;
 538     }else {
 539         *result = NULL;
 540         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), result);
 541         return NS_NOINTERFACE;
 542     }
 543
 544     nsISupports_AddRef((nsISupports*)*result);
 545     return NS_OK;
 546 }
 547
 548 static nsrefcnt NSAPI nsRunnable_AddRef(nsIRunnable *iface)
 549 {
 550     nsRunnable *This = impl_from_nsIRunnable(iface);
 551     LONG ref = InterlockedIncrement(&This->ref);
 552
 553     TRACE("(%p) ref=%d\n", This, ref);
 554
 555     return ref;
 556 }
 557
 558 static nsrefcnt NSAPI nsRunnable_Release(nsIRunnable *iface)
 559 {
 560     nsRunnable *This = impl_from_nsIRunnable(iface);
 561     LONG ref = InterlockedDecrement(&This->ref);
 562
 563     TRACE("(%p) ref=%d\n", This, ref);
 564
 565     if(!ref) {
 566         htmldoc_release(&This->doc->basedoc);
 567         if(This->arg1)
 568             nsISupports_Release(This->arg1);
 569         if(This->arg2)
 570             nsISupports_Release(This->arg2);
 571         heap_free(This);
 572     }
 573
 574     return ref;
 575 }
 576
 577 static nsresult NSAPI nsRunnable_Run(nsIRunnable *iface)
 578 {
 579     nsRunnable *This = impl_from_nsIRunnable(iface);
 580
 581     return This->proc(This->doc, This->arg1, This->arg2);
 582 }
 583
 584 static const nsIRunnableVtbl nsRunnableVtbl = {
 585     nsRunnable_QueryInterface,
 586     nsRunnable_AddRef,
 587     nsRunnable_Release,
 588     nsRunnable_Run
 589 };
 590
 591 static void add_script_runner(HTMLDocumentNode *This, runnable_proc_t proc, nsISupports *arg1, nsISupports *arg2)
 592 {
 593     nsRunnable *runnable;
 594
 595     runnable = heap_alloc_zero(sizeof(*runnable));
 596     if(!runnable)
 597         return;
 598
 599     runnable->nsIRunnable_iface.lpVtbl = &nsRunnableVtbl;
 600     runnable->ref = 1;
 601
 602     htmldoc_addref(&This->basedoc);
 603     runnable->doc = This;
 604     runnable->proc = proc;
 605
 606     if(arg1)
 607         nsISupports_AddRef(arg1);
 608     runnable->arg1 = arg1;
 609
 610     if(arg2)
 611         nsISupports_AddRef(arg2);
 612     runnable->arg2 = arg2;
 613
 614     nsIContentUtils_AddScriptRunner(content_utils, &runnable->nsIRunnable_iface);
 615
 616     nsIRunnable_Release(&runnable->nsIRunnable_iface);
 617 }
 618
 619 static inline HTMLDocumentNode *impl_from_nsIDocumentObserver(nsIDocumentObserver *iface)
 620 {
 621     return CONTAINING_RECORD(iface, HTMLDocumentNode, nsIDocumentObserver_iface);
 622 }
 623
 624 static nsresult NSAPI nsDocumentObserver_QueryInterface(nsIDocumentObserver *iface,
 625         nsIIDRef riid, void **result)
 626 {
 627     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 628
 629     if(IsEqualGUID(&IID_nsISupports, riid)) {
 630         TRACE("(%p)->(IID_nsISupports, %p)\n", This, result);
 631         *result = &This->nsIDocumentObserver_iface;
 632     }else if(IsEqualGUID(&IID_nsIMutationObserver, riid)) {
 633         TRACE("(%p)->(IID_nsIMutationObserver %p)\n", This, result);
 634         *result = &This->nsIDocumentObserver_iface;
 635     }else if(IsEqualGUID(&IID_nsIDocumentObserver, riid)) {
 636         TRACE("(%p)->(IID_nsIDocumentObserver %p)\n", This, result);
 637         *result = &This->nsIDocumentObserver_iface;
 638     }else {
 639         *result = NULL;
 640         TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), result);
 641         return NS_NOINTERFACE;
 642     }
 643
 644     htmldoc_addref(&This->basedoc);
 645     return NS_OK;
 646 }
 647
 648 static nsrefcnt NSAPI nsDocumentObserver_AddRef(nsIDocumentObserver *iface)
 649 {
 650     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 651     return htmldoc_addref(&This->basedoc);
 652 }
 653
 654 static nsrefcnt NSAPI nsDocumentObserver_Release(nsIDocumentObserver *iface)
 655 {
 656     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 657     return htmldoc_release(&This->basedoc);
 658 }
 659
 660 static void NSAPI nsDocumentObserver_CharacterDataWillChange(nsIDocumentObserver *iface,
 661         nsIDocument *aDocument, nsIContent *aContent, void /*CharacterDataChangeInfo*/ *aInfo)
 662 {
 663 }
 664
 665 static void NSAPI nsDocumentObserver_CharacterDataChanged(nsIDocumentObserver *iface,
 666         nsIDocument *aDocument, nsIContent *aContent, void /*CharacterDataChangeInfo*/ *aInfo)
 667 {
 668 }
 669
 670 static void NSAPI nsDocumentObserver_AttributeWillChange(nsIDocumentObserver *iface, nsIDocument *aDocument,
 671         void *aElement, LONG aNameSpaceID, nsIAtom *aAttribute, LONG aModType, const nsAttrValue *aNewValue)
 672 {
 673 }
 674
 675 static void NSAPI nsDocumentObserver_AttributeChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 676         void *aElement, LONG aNameSpaceID, nsIAtom *aAttribute, LONG aModType, const nsAttrValue *aOldValue)
 677 {
 678 }
 679
 680 static void NSAPI nsDocumentObserver_NativeAnonymousChildListChange(nsIDocumentObserver *iface, nsIDocument *aDocument,
 681         nsIContent *aContent, cpp_bool aIsRemove)
 682 {
 683 }
 684
 685 static void NSAPI nsDocumentObserver_AttributeSetToCurrentValue(nsIDocumentObserver *iface, nsIDocument *aDocument,
 686         void *aElement, LONG aNameSpaceID, nsIAtom *aAttribute)
 687 {
 688 }
 689
 690 static void NSAPI nsDocumentObserver_ContentAppended(nsIDocumentObserver *iface, nsIDocument *aDocument,
 691         nsIContent *aContainer, nsIContent *aFirstNewContent, LONG aNewIndexInContainer)
 692 {
 693 }
 694
 695 static void NSAPI nsDocumentObserver_ContentInserted(nsIDocumentObserver *iface, nsIDocument *aDocument,
 696         nsIContent *aContainer, nsIContent *aChild, LONG aIndexInContainer)
 697 {
 698 }
 699
 700 static void NSAPI nsDocumentObserver_ContentRemoved(nsIDocumentObserver *iface, nsIDocument *aDocument,
 701         nsIContent *aContainer, nsIContent *aChild, LONG aIndexInContainer,
 702         nsIContent *aProviousSibling)
 703 {
 704 }
 705
 706 static void NSAPI nsDocumentObserver_NodeWillBeDestroyed(nsIDocumentObserver *iface, const nsINode *aNode)
 707 {
 708 }
 709
 710 static void NSAPI nsDocumentObserver_ParentChainChanged(nsIDocumentObserver *iface, nsIContent *aContent)
 711 {
 712 }
 713
 714 static void NSAPI nsDocumentObserver_BeginUpdate(nsIDocumentObserver *iface, nsIDocument *aDocument,
 715         nsUpdateType aUpdateType)
 716 {
 717 }
 718
 719 static void NSAPI nsDocumentObserver_EndUpdate(nsIDocumentObserver *iface, nsIDocument *aDocument,
 720         nsUpdateType aUpdateType)
 721 {
 722 }
 723
 724 static void NSAPI nsDocumentObserver_BeginLoad(nsIDocumentObserver *iface, nsIDocument *aDocument)
 725 {
 726 }
 727
 728 static void NSAPI nsDocumentObserver_EndLoad(nsIDocumentObserver *iface, nsIDocument *aDocument)
 729 {
 730     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 731
 732     TRACE("(%p)\n", This);
 733
 734     if(This->skip_mutation_notif)
 735         return;
 736
 737     This->content_ready = TRUE;
 738     add_script_runner(This, run_end_load, NULL, NULL);
 739 }
 740
 741 static void NSAPI nsDocumentObserver_ContentStatesChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 742         nsIContent *aContent, EventStates aStateMask)
 743 {
 744 }
 745
 746 static void NSAPI nsDocumentObserver_DocumentStatesChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
 747         EventStates aStateMask)
 748 {
 749 }
 750
 751 static void NSAPI nsDocumentObserver_StyleSheetAdded(nsIDocumentObserver *iface, mozilla_StyleSheetHandle aStyleSheet,
 752         cpp_bool aDocumentSheet)
 753 {
 754 }
 755
 756 static void NSAPI nsDocumentObserver_StyleSheetRemoved(nsIDocumentObserver *iface, mozilla_StyleSheetHandle aStyleSheet,
 757         cpp_bool aDocumentSheet)
 758 {
 759 }
 760
 761 static void NSAPI nsDocumentObserver_StyleSheetApplicableStateChanged(nsIDocumentObserver *iface,
 762         mozilla_StyleSheetHandle aStyleSheet)
 763 {
 764 }
 765
 766 static void NSAPI nsDocumentObserver_StyleRuleChanged(nsIDocumentObserver *iface, mozilla_StyleSheetHandle aStyleSheet)
 767 {
 768 }
 769
 770 static void NSAPI nsDocumentObserver_StyleRuleAdded(nsIDocumentObserver *iface, mozilla_StyleSheetHandle aStyleSheet)
 771 {
 772 }
 773
 774 static void NSAPI nsDocumentObserver_StyleRuleRemoved(nsIDocumentObserver *iface, mozilla_StyleSheetHandle aStyleSheet)
 775 {
 776 }
 777
 778 static void NSAPI nsDocumentObserver_BindToDocument(nsIDocumentObserver *iface, nsIDocument *aDocument,
 779         nsIContent *aContent)
 780 {
 781     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 782     nsIDOMHTMLIFrameElement *nsiframe;
 783     nsIDOMHTMLFrameElement *nsframe;
 784     nsIDOMHTMLScriptElement *nsscript;
 785     nsIDOMHTMLMetaElement *nsmeta;
 786     nsIDOMElement *nselem;
 787     nsIDOMComment *nscomment;
 788     nsresult nsres;
 789
 790     TRACE("(%p)->(%p %p)\n", This, aDocument, aContent);
 791
 792     if(This->document_mode < COMPAT_MODE_IE10) {
 793         nsres = nsIContent_QueryInterface(aContent, &IID_nsIDOMComment, (void**)&nscomment);
 794         if(NS_SUCCEEDED(nsres)) {
 795             TRACE("comment node\n");
 796
 797             add_script_runner(This, run_insert_comment, (nsISupports*)nscomment, NULL);
 798             nsIDOMComment_Release(nscomment);
 799             return;
 800         }
 801     }
 802
 803     if(This->document_mode == COMPAT_MODE_QUIRKS) {
 804         nsIDOMDocumentType *nsdoctype;
 805         nsres = nsIContent_QueryInterface(aContent, &IID_nsIDOMDocumentType, (void**)&nsdoctype);
 806         if(NS_SUCCEEDED(nsres)) {
 807             compat_mode_t mode = COMPAT_MODE_IE7;
 808
 809             TRACE("doctype node\n");
 810
 811             if(This->window && This->window->base.outer_window) {
 812                 HTMLOuterWindow *window = This->window->base.outer_window;
 813                 DWORD zone;
 814                 HRESULT hres;
 815
 816                 /*
 817                  * Internet URL zone is treated differently. Native defaults to latest supported
 818                  * mode. We default to IE8. Ideally, we'd sync that with version used for IE=edge
 819                  * X-UA-Compatible version, allow configuration and default to higher version
 820                  * (once it's well supported).
 821                  */
 822                 hres = IInternetSecurityManager_MapUrlToZone(window->secmgr, window->url, &zone, 0);
 823                 if(SUCCEEDED(hres) && zone == URLZONE_INTERNET)
 824                     mode = COMPAT_MODE_IE8;
 825             }
 826
 827             set_document_mode(This, mode, FALSE);
 828             nsIDOMDocumentType_Release(nsdoctype);
 829         }
 830     }
 831
 832     nsres = nsIContent_QueryInterface(aContent, &IID_nsIDOMElement, (void**)&nselem);
 833     if(NS_FAILED(nsres))
 834         return;
 835
 836     check_event_attr(This, nselem);
 837     nsIDOMElement_Release(nselem);
 838
 839     nsres = nsIContent_QueryInterface(aContent, &IID_nsIDOMHTMLIFrameElement, (void**)&nsiframe);
 840     if(NS_SUCCEEDED(nsres)) {
 841         TRACE("iframe node\n");
 842
 843         add_script_runner(This, run_bind_to_tree, (nsISupports*)nsiframe, NULL);
 844         nsIDOMHTMLIFrameElement_Release(nsiframe);
 845         return;
 846     }
 847
 848     nsres = nsIContent_QueryInterface(aContent, &IID_nsIDOMHTMLFrameElement, (void**)&nsframe);
 849     if(NS_SUCCEEDED(nsres)) {
 850         TRACE("frame node\n");
 851
 852         add_script_runner(This, run_bind_to_tree, (nsISupports*)nsframe, NULL);
 853         nsIDOMHTMLFrameElement_Release(nsframe);
 854         return;
 855     }
 856
 857     nsres = nsIContent_QueryInterface(aContent, &IID_nsIDOMHTMLScriptElement, (void**)&nsscript);
 858     if(NS_SUCCEEDED(nsres)) {
 859         TRACE("script element\n");
 860
 861         add_script_runner(This, run_bind_to_tree, (nsISupports*)nsscript, NULL);
 862         nsIDOMHTMLScriptElement_Release(nsscript);
 863         return;
 864     }
 865
 866     nsres = nsIContent_QueryInterface(aContent, &IID_nsIDOMHTMLMetaElement, (void**)&nsmeta);
 867     if(NS_SUCCEEDED(nsres)) {
 868         process_meta_element(This, nsmeta);
 869         nsIDOMHTMLMetaElement_Release(nsmeta);
 870     }
 871 }
 872
 873 static void NSAPI nsDocumentObserver_AttemptToExecuteScript(nsIDocumentObserver *iface, nsIContent *aContent,
 874         nsIParser *aParser, cpp_bool *aBlock)
 875 {
 876     HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
 877     nsIDOMHTMLScriptElement *nsscript;
 878     nsresult nsres;
 879
 880     TRACE("(%p)->(%p %p %p)\n", This, aContent, aParser, aBlock);
 881
 882     nsres = nsIContent_QueryInterface(aContent, &IID_nsIDOMHTMLScriptElement, (void**)&nsscript);
 883     if(NS_SUCCEEDED(nsres)) {
 884         TRACE("script node\n");
 885
 886         lock_document_mode(This);
 887         add_script_runner(This, run_insert_script, (nsISupports*)nsscript, (nsISupports*)aParser);
 888         nsIDOMHTMLScriptElement_Release(nsscript);
 889     }
 890 }
 891
 892 static const nsIDocumentObserverVtbl nsDocumentObserverVtbl = {
 893     nsDocumentObserver_QueryInterface,
 894     nsDocumentObserver_AddRef,
 895     nsDocumentObserver_Release,
 896     nsDocumentObserver_CharacterDataWillChange,
 897     nsDocumentObserver_CharacterDataChanged,
 898     nsDocumentObserver_AttributeWillChange,
 899     nsDocumentObserver_AttributeChanged,
 900     nsDocumentObserver_NativeAnonymousChildListChange,
 901     nsDocumentObserver_AttributeSetToCurrentValue,
 902     nsDocumentObserver_ContentAppended,
 903     nsDocumentObserver_ContentInserted,
 904     nsDocumentObserver_ContentRemoved,
 905     nsDocumentObserver_NodeWillBeDestroyed,
 906     nsDocumentObserver_ParentChainChanged,
 907     nsDocumentObserver_BeginUpdate,
 908     nsDocumentObserver_EndUpdate,
 909     nsDocumentObserver_BeginLoad,
 910     nsDocumentObserver_EndLoad,
 911     nsDocumentObserver_ContentStatesChanged,
 912     nsDocumentObserver_DocumentStatesChanged,
 913     nsDocumentObserver_StyleSheetAdded,
 914     nsDocumentObserver_StyleSheetRemoved,
 915     nsDocumentObserver_StyleSheetApplicableStateChanged,
 916     nsDocumentObserver_StyleRuleChanged,
 917     nsDocumentObserver_StyleRuleAdded,
 918     nsDocumentObserver_StyleRuleRemoved,
 919     nsDocumentObserver_BindToDocument,
 920     nsDocumentObserver_AttemptToExecuteScript
 921 };
 922
 923 void init_document_mutation(HTMLDocumentNode *doc)
 924 {
 925     nsIDocument *nsdoc;
 926     nsresult nsres;
 927
 928     doc->nsIDocumentObserver_iface.lpVtbl = &nsDocumentObserverVtbl;
 929
 930     nsres = nsIDOMHTMLDocument_QueryInterface(doc->nsdoc, &IID_nsIDocument, (void**)&nsdoc);
 931     if(NS_FAILED(nsres)) {
 932         ERR("Could not get nsIDocument: %08x\n", nsres);
 933         return;
 934     }
 935
 936     nsIContentUtils_AddDocumentObserver(content_utils, nsdoc, &doc->nsIDocumentObserver_iface);
 937     nsIDocument_Release(nsdoc);
 938 }
 939
 940 void release_document_mutation(HTMLDocumentNode *doc)
 941 {
 942     nsIDocument *nsdoc;
 943     nsresult nsres;
 944
 945     nsres = nsIDOMHTMLDocument_QueryInterface(doc->nsdoc, &IID_nsIDocument, (void**)&nsdoc);
 946     if(NS_FAILED(nsres)) {
 947         ERR("Could not get nsIDocument: %08x\n", nsres);
 948         return;
 949     }
 950
 951     nsIContentUtils_RemoveDocumentObserver(content_utils, nsdoc, &doc->nsIDocumentObserver_iface);
 952     nsIDocument_Release(nsdoc);
 953 }
 954
 955 JSContext *get_context_from_document(nsIDOMHTMLDocument *nsdoc)
 956 {
 957     nsIDocument *doc;
 958     JSContext *ctx;
 959     nsresult nsres;
 960
 961     nsres = nsIDOMHTMLDocument_QueryInterface(nsdoc, &IID_nsIDocument, (void**)&doc);
 962     assert(nsres == NS_OK);
 963
 964     ctx = nsIContentUtils_GetContextFromDocument(content_utils, doc);
 965     nsIDocument_Release(doc);
 966
 967     TRACE("ret %p\n", ctx);
 968     return ctx;
 969 }
 970
 971 void init_mutation(nsIComponentManager *component_manager)
 972 {
 973     nsIFactory *factory;
 974     nsresult nsres;
 975
 976     if(!component_manager) {
 977         if(content_utils) {
 978             nsIContentUtils_Release(content_utils);
 979             content_utils = NULL;
 980         }
 981         return;
 982     }
 983
 984     nsres = nsIComponentManager_GetClassObject(component_manager, &NS_ICONTENTUTILS_CID,
 985             &IID_nsIFactory, (void**)&factory);
 986     if(NS_FAILED(nsres)) {
 987         ERR("Could not create nsIContentUtils service: %08x\n", nsres);
 988         return;
 989     }
 990
 991     nsres = nsIFactory_CreateInstance(factory, NULL, &IID_nsIContentUtils, (void**)&content_utils);
 992     nsIFactory_Release(factory);
 993     if(NS_FAILED(nsres))
 994         ERR("Could not create nsIContentUtils instance: %08x\n", nsres);
 995 }