dlls/mshtml/mshtml_private.h

   1 /*
   2  * Copyright 2005-2006 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 "docobj.h"
  20 #include "mshtml.h"
  21 #include "mshtmhst.h"
  22 #include "hlink.h"
  23
  24 #include "wine/list.h"
  25
  26 #ifdef INIT_GUID
  27 #include "initguid.h"
  28 #endif
  29
  30 #include "nsiface.h"
  31
  32 #define GENERATE_MSHTML_NS_FAILURE(code) \
  33     ((nsresult) ((PRUint32)(1<<31) | ((PRUint32)(0x45+6)<<16) | (PRUint32)(code)))
  34
  35 #define NS_OK                     ((nsresult)0x00000000L)
  36 #define NS_ERROR_FAILURE          ((nsresult)0x80004005L)
  37 #define NS_NOINTERFACE            ((nsresult)0x80004002L)
  38 #define NS_ERROR_NOT_IMPLEMENTED  ((nsresult)0x80004001L)
  39 #define NS_ERROR_INVALID_ARG      ((nsresult)0x80070057L)
  40 #define NS_ERROR_UNEXPECTED       ((nsresult)0x8000ffffL)
  41 #define NS_ERROR_UNKNOWN_PROTOCOL ((nsresult)0x804b0012L)
  42
  43 #define WINE_NS_LOAD_FROM_MONIKER GENERATE_MSHTML_NS_FAILURE(0)
  44
  45 #define NS_FAILED(res) ((res) & 0x80000000)
  46 #define NS_SUCCEEDED(res) (!NS_FAILED(res))
  47
  48 #define NSAPI WINAPI
  49
  50 #define NS_ELEMENT_NODE   1
  51 #define NS_DOCUMENT_NODE  9
  52
  53 typedef struct HTMLDOMNode HTMLDOMNode;
  54 typedef struct ConnectionPoint ConnectionPoint;
  55 typedef struct BSCallback BSCallback;
  56
  57 typedef struct {
  58     const IHTMLWindow2Vtbl *lpHTMLWindow2Vtbl;
  59
  60     LONG ref;
  61
  62     HTMLDocument *doc;
  63     nsIDOMWindow *nswindow;
  64
  65     struct list entry;
  66 } HTMLWindow;
  67
  68 typedef enum {
  69     UNKNOWN_USERMODE,
  70     BROWSEMODE,
  71     EDITMODE
  72 } USERMODE;
  73
  74 typedef struct {
  75     const IConnectionPointContainerVtbl  *lpConnectionPointContainerVtbl;
  76
  77     ConnectionPoint *cp_list;
  78     IUnknown *outer;
  79 } ConnectionPointContainer;
  80
  81 struct ConnectionPoint {
  82     const IConnectionPointVtbl *lpConnectionPointVtbl;
  83
  84     IConnectionPointContainer *container;
  85
  86     union {
  87         IUnknown *unk;
  88         IDispatch *disp;
  89         IPropertyNotifySink *propnotif;
  90     } *sinks;
  91     DWORD sinks_size;
  92
  93     IID iid;
  94
  95     ConnectionPoint *next;
  96 };
  97
  98 struct HTMLDocument {
  99     const IHTMLDocument2Vtbl              *lpHTMLDocument2Vtbl;
 100     const IHTMLDocument3Vtbl              *lpHTMLDocument3Vtbl;
 101     const IPersistMonikerVtbl             *lpPersistMonikerVtbl;
 102     const IPersistFileVtbl                *lpPersistFileVtbl;
 103     const IMonikerPropVtbl                *lpMonikerPropVtbl;
 104     const IOleObjectVtbl                  *lpOleObjectVtbl;
 105     const IOleDocumentVtbl                *lpOleDocumentVtbl;
 106     const IOleDocumentViewVtbl            *lpOleDocumentViewVtbl;
 107     const IOleInPlaceActiveObjectVtbl     *lpOleInPlaceActiveObjectVtbl;
 108     const IViewObject2Vtbl                *lpViewObject2Vtbl;
 109     const IOleInPlaceObjectWindowlessVtbl *lpOleInPlaceObjectWindowlessVtbl;
 110     const IServiceProviderVtbl            *lpServiceProviderVtbl;
 111     const IOleCommandTargetVtbl           *lpOleCommandTargetVtbl;
 112     const IOleControlVtbl                 *lpOleControlVtbl;
 113     const IHlinkTargetVtbl                *lpHlinkTargetVtbl;
 114     const IPersistStreamInitVtbl          *lpPersistStreamInitVtbl;
 115
 116     LONG ref;
 117
 118     NSContainer *nscontainer;
 119     HTMLWindow *window;
 120
 121     IOleClientSite *client;
 122     IDocHostUIHandler *hostui;
 123     IOleInPlaceSite *ipsite;
 124     IOleInPlaceFrame *frame;
 125     IOleInPlaceUIWindow *ip_window;
 126
 127     BSCallback *bscallback;
 128     IMoniker *mon;
 129     BSTR url;
 130
 131     HWND hwnd;
 132     HWND tooltips_hwnd;
 133
 134     DOCHOSTUIINFO hostinfo;
 135
 136     USERMODE usermode;
 137     READYSTATE readystate;
 138     BOOL in_place_active;
 139     BOOL ui_active;
 140     BOOL window_active;
 141     BOOL has_key_path;
 142     BOOL container_locked;
 143     BOOL focus;
 144
 145     DWORD update;
 146
 147     ConnectionPointContainer cp_container;
 148     ConnectionPoint cp_htmldocevents;
 149     ConnectionPoint cp_htmldocevents2;
 150     ConnectionPoint cp_propnotif;
 151
 152     HTMLDOMNode *nodes;
 153 };
 154
 155 typedef struct {
 156     const nsIDOMEventListenerVtbl      *lpDOMEventListenerVtbl;
 157     NSContainer *This;
 158 } nsEventListener;
 159
 160 struct NSContainer {
 161     const nsIWebBrowserChromeVtbl       *lpWebBrowserChromeVtbl;
 162     const nsIContextMenuListenerVtbl    *lpContextMenuListenerVtbl;
 163     const nsIURIContentListenerVtbl     *lpURIContentListenerVtbl;
 164     const nsIEmbeddingSiteWindowVtbl    *lpEmbeddingSiteWindowVtbl;
 165     const nsITooltipListenerVtbl        *lpTooltipListenerVtbl;
 166     const nsIInterfaceRequestorVtbl     *lpInterfaceRequestorVtbl;
 167     const nsIWeakReferenceVtbl          *lpWeakReferenceVtbl;
 168     const nsISupportsWeakReferenceVtbl  *lpSupportsWeakReferenceVtbl;
 169
 170     nsEventListener blur_listener;
 171     nsEventListener focus_listener;
 172     nsEventListener keypress_listener;
 173     nsEventListener load_listener;
 174
 175     nsIWebBrowser *webbrowser;
 176     nsIWebNavigation *navigation;
 177     nsIBaseWindow *window;
 178     nsIWebBrowserFocus *focus;
 179
 180     nsIController *editor_controller;
 181
 182     LONG ref;
 183
 184     NSContainer *parent;
 185     HTMLDocument *doc;
 186
 187     nsIURIContentListener *content_listener;
 188
 189     HWND hwnd;
 190
 191     BSCallback *bscallback; /* hack */
 192 };
 193
 194 typedef struct {
 195     const nsIHttpChannelVtbl *lpHttpChannelVtbl;
 196     const nsIUploadChannelVtbl *lpUploadChannelVtbl;
 197
 198     LONG ref;
 199
 200     nsIChannel *channel;
 201     nsIHttpChannel *http_channel;
 202     nsIWineURI *uri;
 203     nsIInputStream *post_data_stream;
 204     nsILoadGroup *load_group;
 205     nsIInterfaceRequestor *notif_callback;
 206     nsLoadFlags load_flags;
 207     nsIURI *original_uri;
 208     char *content;
 209     char *charset;
 210 } nsChannel;
 211
 212 typedef struct {
 213     const nsIInputStreamVtbl *lpInputStreamVtbl;
 214
 215     LONG ref;
 216
 217     char buf[1024];
 218     DWORD buf_size;
 219 } nsProtocolStream;
 220
 221 struct BSCallback {
 222     const IBindStatusCallbackVtbl *lpBindStatusCallbackVtbl;
 223     const IServiceProviderVtbl    *lpServiceProviderVtbl;
 224     const IHttpNegotiate2Vtbl     *lpHttpNegotiate2Vtbl;
 225     const IInternetBindInfoVtbl   *lpInternetBindInfoVtbl;
 226
 227     LONG ref;
 228
 229     LPWSTR headers;
 230     HGLOBAL post_data;
 231     ULONG post_data_len;
 232     ULONG readed;
 233
 234     nsChannel *nschannel;
 235     nsIStreamListener *nslistener;
 236     nsISupports *nscontext;
 237
 238     IMoniker *mon;
 239     IBinding *binding;
 240
 241     HTMLDocument *doc;
 242
 243     nsProtocolStream *nsstream;
 244 };
 245
 246 struct HTMLDOMNode {
 247     const IHTMLDOMNodeVtbl *lpHTMLDOMNodeVtbl;
 248
 249     void (*destructor)(IUnknown*);
 250
 251     enum {
 252         NT_UNKNOWN,
 253         NT_HTMLELEM
 254     } node_type;
 255
 256     union {
 257         IUnknown *unk;
 258         IHTMLElement *elem;
 259     } impl;
 260
 261     nsIDOMNode *nsnode;
 262     HTMLDocument *doc;
 263
 264     HTMLDOMNode *next;
 265 };
 266
 267 typedef struct {
 268     const IHTMLElementVtbl *lpHTMLElementVtbl;
 269     const IHTMLElement2Vtbl *lpHTMLElement2Vtbl;
 270
 271     void (*destructor)(IUnknown*);
 272
 273     nsIDOMHTMLElement *nselem;
 274     HTMLDOMNode *node;
 275
 276     IUnknown *impl;
 277 } HTMLElement;
 278
 279 typedef struct {
 280     const IHTMLTextContainerVtbl *lpHTMLTextContainerVtbl;
 281
 282     HTMLElement *element;
 283 } HTMLTextContainer;
 284
 285 #define HTMLWINDOW2(x)   ((IHTMLWindow2*)                 &(x)->lpHTMLWindow2Vtbl)
 286
 287 #define HTMLDOC(x)       ((IHTMLDocument2*)               &(x)->lpHTMLDocument2Vtbl)
 288 #define HTMLDOC3(x)      ((IHTMLDocument3*)               &(x)->lpHTMLDocument3Vtbl)
 289 #define PERSIST(x)       ((IPersist*)                     &(x)->lpPersistFileVtbl)
 290 #define PERSISTMON(x)    ((IPersistMoniker*)              &(x)->lpPersistMonikerVtbl)
 291 #define PERSISTFILE(x)   ((IPersistFile*)                 &(x)->lpPersistFileVtbl)
 292 #define MONPROP(x)       ((IMonikerProp*)                 &(x)->lpMonikerPropVtbl)
 293 #define OLEOBJ(x)        ((IOleObject*)                   &(x)->lpOleObjectVtbl)
 294 #define OLEDOC(x)        ((IOleDocument*)                 &(x)->lpOleDocumentVtbl)
 295 #define DOCVIEW(x)       ((IOleDocumentView*)             &(x)->lpOleDocumentViewVtbl)
 296 #define OLEWIN(x)        ((IOleWindow*)                   &(x)->lpOleInPlaceActiveObjectVtbl)
 297 #define ACTOBJ(x)        ((IOleInPlaceActiveObject*)      &(x)->lpOleInPlaceActiveObjectVtbl)
 298 #define VIEWOBJ(x)       ((IViewObject*)                  &(x)->lpViewObject2Vtbl)
 299 #define VIEWOBJ2(x)      ((IViewObject2*)                 &(x)->lpViewObject2Vtbl)
 300 #define INPLACEOBJ(x)    ((IOleInPlaceObject*)            &(x)->lpOleInPlaceObjectWindowlessVtbl)
 301 #define INPLACEWIN(x)    ((IOleInPlaceObjectWindowless*)  &(x)->lpOleInPlaceObjectWindowlessVtbl)
 302 #define SERVPROV(x)      ((IServiceProvider*)             &(x)->lpServiceProviderVtbl)
 303 #define CMDTARGET(x)     ((IOleCommandTarget*)            &(x)->lpOleCommandTargetVtbl)
 304 #define CONTROL(x)       ((IOleControl*)                  &(x)->lpOleControlVtbl)
 305 #define HLNKTARGET(x)    ((IHlinkTarget*)                 &(x)->lpHlinkTargetVtbl)
 306 #define CONPTCONT(x)     ((IConnectionPointContainer*)    &(x)->lpConnectionPointContainerVtbl)
 307 #define PERSTRINIT(x)    ((IPersistStreamInit*)           &(x)->lpPersistStreamInitVtbl)
 308
 309 #define NSWBCHROME(x)    ((nsIWebBrowserChrome*)          &(x)->lpWebBrowserChromeVtbl)
 310 #define NSCML(x)         ((nsIContextMenuListener*)       &(x)->lpContextMenuListenerVtbl)
 311 #define NSURICL(x)       ((nsIURIContentListener*)        &(x)->lpURIContentListenerVtbl)
 312 #define NSEMBWNDS(x)     ((nsIEmbeddingSiteWindow*)       &(x)->lpEmbeddingSiteWindowVtbl)
 313 #define NSIFACEREQ(x)    ((nsIInterfaceRequestor*)        &(x)->lpInterfaceRequestorVtbl)
 314 #define NSTOOLTIP(x)     ((nsITooltipListener*)           &(x)->lpTooltipListenerVtbl)
 315 #define NSEVENTLIST(x)   ((nsIDOMEventListener*)          &(x)->lpDOMEventListenerVtbl)
 316 #define NSWEAKREF(x)     ((nsIWeakReference*)             &(x)->lpWeakReferenceVtbl)
 317 #define NSSUPWEAKREF(x)  ((nsISupportsWeakReference*)     &(x)->lpSupportsWeakReferenceVtbl)
 318
 319 #define NSCHANNEL(x)     ((nsIChannel*)        &(x)->lpHttpChannelVtbl)
 320 #define NSHTTPCHANNEL(x) ((nsIHttpChannel*)    &(x)->lpHttpChannelVtbl)
 321 #define NSUPCHANNEL(x)   ((nsIUploadChannel*)  &(x)->lpUploadChannelVtbl)
 322
 323 #define HTTPNEG(x)       ((IHttpNegotiate2*)              &(x)->lpHttpNegotiate2Vtbl)
 324 #define STATUSCLB(x)     ((IBindStatusCallback*)          &(x)->lpBindStatusCallbackVtbl)
 325 #define BINDINFO(x)      ((IInternetBindInfo*)            &(x)->lpInternetBindInfoVtbl);
 326
 327 #define HTMLELEM(x)      ((IHTMLElement*)                 &(x)->lpHTMLElementVtbl)
 328 #define HTMLELEM2(x)     ((IHTMLElement2*)                &(x)->lpHTMLElement2Vtbl)
 329 #define HTMLDOMNODE(x)   ((IHTMLDOMNode*)                 &(x)->lpHTMLDOMNodeVtbl)
 330
 331 #define HTMLTEXTCONT(x)  ((IHTMLTextContainer*)           &(x)->lpHTMLTextContainerVtbl)
 332
 333 #define DEFINE_THIS(cls,ifc,iface) ((cls*)((BYTE*)(iface)-offsetof(cls,lp ## ifc ## Vtbl)))
 334
 335 HRESULT HTMLDocument_Create(IUnknown*,REFIID,void**);
 336 HRESULT HTMLLoadOptions_Create(IUnknown*,REFIID,void**);
 337
 338 HTMLWindow *HTMLWindow_Create(HTMLDocument*);
 339 HTMLWindow *nswindow_to_window(const nsIDOMWindow*);
 340
 341 void HTMLDocument_HTMLDocument3_Init(HTMLDocument*);
 342 void HTMLDocument_Persist_Init(HTMLDocument*);
 343 void HTMLDocument_OleCmd_Init(HTMLDocument*);
 344 void HTMLDocument_OleObj_Init(HTMLDocument*);
 345 void HTMLDocument_View_Init(HTMLDocument*);
 346 void HTMLDocument_Window_Init(HTMLDocument*);
 347 void HTMLDocument_Service_Init(HTMLDocument*);
 348 void HTMLDocument_Hlink_Init(HTMLDocument*);
 349
 350 void ConnectionPoint_Init(ConnectionPoint*,IConnectionPointContainer*,REFIID,ConnectionPoint*);
 351 void ConnectionPointContainer_Init(ConnectionPointContainer*,ConnectionPoint*,IUnknown*);
 352 void ConnectionPointContainer_Destroy(ConnectionPointContainer*);
 353
 354 NSContainer *NSContainer_Create(HTMLDocument*,NSContainer*);
 355 void NSContainer_Release(NSContainer*);
 356
 357 void HTMLDocument_LockContainer(HTMLDocument*,BOOL);
 358 void show_context_menu(HTMLDocument*,DWORD,POINT*);
 359 void notif_focus(HTMLDocument*);
 360
 361 void show_tooltip(HTMLDocument*,DWORD,DWORD,LPCWSTR);
 362 void hide_tooltip(HTMLDocument*);
 363 HRESULT get_client_disp_property(IOleClientSite*,DISPID,VARIANT*);
 364
 365 HRESULT ProtocolFactory_Create(REFCLSID,REFIID,void**);
 366
 367 void close_gecko(void);
 368 void register_nsservice(nsIComponentRegistrar*,nsIServiceManager*);
 369 void init_nsio(nsIComponentManager*,nsIComponentRegistrar*);
 370
 371 void hlink_frame_navigate(HTMLDocument*,IHlinkFrame*,LPCWSTR,nsIInputStream*,DWORD);
 372
 373 void call_property_onchanged(ConnectionPoint*,DISPID);
 374
 375 void *nsalloc(size_t);
 376 void nsfree(void*);
 377
 378 void nsACString_Init(nsACString*,const char*);
 379 void nsACString_SetData(nsACString*,const char*);
 380 PRUint32 nsACString_GetData(const nsACString*,const char**,PRBool*);
 381 void nsACString_Finish(nsACString*);
 382
 383 void nsAString_Init(nsAString*,const PRUnichar*);
 384 PRUint32 nsAString_GetData(const nsAString*,const PRUnichar**,PRBool*);
 385 void nsAString_Finish(nsAString*);
 386
 387 nsIInputStream *create_nsstream(const char*,PRInt32);
 388 nsICommandParams *create_nscommand_params(void);
 389 void nsnode_to_nsstring(nsIDOMNode*,nsAString*);
 390 nsIController *get_editor_controller(NSContainer*);
 391 void init_nsevents(NSContainer*);
 392
 393 BSCallback *create_bscallback(IMoniker*);
 394 HRESULT start_binding(BSCallback*);
 395 HRESULT load_stream(BSCallback*,IStream*);
 396 void set_document_bscallback(HTMLDocument*,BSCallback*);
 397 void set_current_mon(HTMLDocument*,IMoniker*);
 398
 399 IHTMLSelectionObject *HTMLSelectionObject_Create(nsISelection*);
 400 IHTMLTxtRange *HTMLTxtRange_Create(nsIDOMRange*);
 401 IHTMLStyle *HTMLStyle_Create(nsIDOMCSSStyleDeclaration*);
 402 IHTMLStyleSheet *HTMLStyleSheet_Create(void);
 403
 404 void HTMLElement_Create(HTMLDOMNode*);
 405 void HTMLBodyElement_Create(HTMLElement*);
 406 void HTMLInputElement_Create(HTMLElement*);
 407 void HTMLSelectElement_Create(HTMLElement*);
 408 void HTMLTextAreaElement_Create(HTMLElement*);
 409
 410 void HTMLElement2_Init(HTMLElement*);
 411
 412 void HTMLTextContainer_Init(HTMLTextContainer*,HTMLElement*);
 413
 414 HRESULT HTMLDOMNode_QI(HTMLDOMNode*,REFIID,void**);
 415 HRESULT HTMLElement_QI(HTMLElement*,REFIID,void**);
 416
 417 HTMLDOMNode *get_node(HTMLDocument*,nsIDOMNode*);
 418 void release_nodes(HTMLDocument*);
 419
 420 BOOL install_wine_gecko(void);
 421
 422 /* commands */
 423 typedef struct {
 424     DWORD id;
 425     HRESULT (*query)(HTMLDocument*,OLECMD*);
 426     HRESULT (*exec)(HTMLDocument*,DWORD,VARIANT*,VARIANT*);
 427 } cmdtable_t;
 428
 429 extern const cmdtable_t editmode_cmds[];
 430
 431 /* timer */
 432 #define UPDATE_UI       0x0001
 433 #define UPDATE_TITLE    0x0002
 434
 435 void update_doc(HTMLDocument *This, DWORD flags);
 436 void update_title(HTMLDocument*);
 437
 438 /* editor */
 439 void init_editor(HTMLDocument*);
 440 void set_ns_editmode(NSContainer*);
 441 void handle_edit_event(HTMLDocument*,nsIDOMEvent*);
 442 HRESULT editor_exec_copy(HTMLDocument*,DWORD,VARIANT*,VARIANT*);
 443 HRESULT editor_exec_cut(HTMLDocument*,DWORD,VARIANT*,VARIANT*);
 444 HRESULT editor_exec_paste(HTMLDocument*,DWORD,VARIANT*,VARIANT*);
 445 void handle_edit_load(HTMLDocument *This);
 446
 447 extern DWORD mshtml_tls;
 448
 449 typedef struct task_t {
 450     HTMLDocument *doc;
 451
 452     enum {
 453         TASK_SETDOWNLOADSTATE,
 454         TASK_PARSECOMPLETE,
 455         TASK_SETPROGRESS,
 456         TASK_START_BINDING
 457     } task_id;
 458
 459     BSCallback *bscallback;
 460
 461     struct task_t *next;
 462 } task_t;
 463
 464 typedef struct {
 465     HWND thread_hwnd;
 466     task_t *task_queue_head;
 467     task_t *task_queue_tail;
 468 } thread_data_t;
 469
 470 thread_data_t *get_thread_data(BOOL);
 471 HWND get_thread_hwnd(void);
 472 void push_task(task_t*);
 473 void remove_doc_tasks(const HTMLDocument*);
 474
 475 DEFINE_GUID(CLSID_AboutProtocol, 0x3050F406, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 476 DEFINE_GUID(CLSID_JSProtocol, 0x3050F3B2, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 477 DEFINE_GUID(CLSID_MailtoProtocol, 0x3050F3DA, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 478 DEFINE_GUID(CLSID_ResProtocol, 0x3050F3BC, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 479 DEFINE_GUID(CLSID_SysimageProtocol, 0x76E67A63, 0x06E9, 0x11D2, 0xA8,0x40, 0x00,0x60,0x08,0x05,0x93,0x82);
 480
 481 DEFINE_GUID(CLSID_CMarkup,0x3050f4fb,0x98b5,0x11cf,0xbb,0x82,0x00,0xaa,0x00,0xbd,0xce,0x0b);
 482
 483 extern LONG module_ref;
 484 #define LOCK_MODULE()   InterlockedIncrement(&module_ref)
 485 #define UNLOCK_MODULE() InterlockedDecrement(&module_ref)
 486
 487 /* memory allocation functions */
 488
 489 static inline void *mshtml_alloc(size_t len)
 490 {
 491     return HeapAlloc(GetProcessHeap(), 0, len);
 492 }
 493
 494 static inline void *mshtml_alloc_zero(size_t len)
 495 {
 496     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 497 }
 498
 499 static inline void *mshtml_realloc(void *mem, size_t len)
 500 {
 501     return HeapReAlloc(GetProcessHeap(), 0, mem, len);
 502 }
 503
 504 static inline BOOL mshtml_free(void *mem)
 505 {
 506     return HeapFree(GetProcessHeap(), 0, mem);
 507 }
 508
 509 HINSTANCE get_shdoclc(void);
 510
 511 extern HINSTANCE hInst;