dlls/hhctrl.ocx/webbrowser.c

   1 /*
   2  * WebBrowser Implementation
   3  *
   4  * Copyright 2005 James Hawkins
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "hhctrl.h"
  22
  23 #define ICOM_THIS_MULTI(impl,field,iface) impl* const This=(impl*)((char*)(iface) - offsetof(impl,field))
  24
  25 typedef struct IOleClientSiteImpl
  26 {
  27     const IOleClientSiteVtbl *lpVtbl;
  28     const IOleInPlaceSiteVtbl *lpvtblOleInPlaceSite;
  29     const IOleInPlaceFrameVtbl *lpvtblOleInPlaceFrame;
  30     const IDocHostUIHandlerVtbl *lpvtblDocHostUIHandler;
  31
  32     /* IOleClientSiteImpl data */
  33     IOleObject *pBrowserObject;
  34     LONG ref;
  35
  36     /* IOleInPlaceFrame data */
  37     HWND hwndWindow;
  38 } IOleClientSiteImpl;
  39
  40 static HRESULT STDMETHODCALLTYPE Site_QueryInterface(IOleClientSite *iface, REFIID riid, void **ppvObj)
  41 {
  42     ICOM_THIS_MULTI(IOleClientSiteImpl, lpVtbl, iface);
  43     *ppvObj = NULL;
  44
  45     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IOleClientSite))
  46     {
  47         *ppvObj = This;
  48     }
  49     else if (IsEqualIID(riid, &IID_IOleInPlaceSite))
  50     {
  51         *ppvObj = &(This->lpvtblOleInPlaceSite);
  52     }
  53     else if (IsEqualIID(riid, &IID_IDocHostUIHandler))
  54     {
  55         *ppvObj = &(This->lpvtblDocHostUIHandler);
  56     }
  57     else
  58         return E_NOINTERFACE;
  59
  60     return S_OK;
  61 }
  62
  63 static ULONG STDMETHODCALLTYPE Site_AddRef(IOleClientSite *iface)
  64 {
  65     ICOM_THIS_MULTI(IOleClientSiteImpl, lpVtbl, iface);
  66     return InterlockedIncrement(&This->ref);
  67 }
  68
  69 static ULONG STDMETHODCALLTYPE Site_Release(IOleClientSite *iface)
  70 {
  71     ICOM_THIS_MULTI(IOleClientSiteImpl, lpVtbl, iface);
  72     LONG refCount = InterlockedDecrement(&This->ref);
  73
  74     if (refCount)
  75         return refCount;
  76
  77     hhctrl_free(This);
  78     return 0;
  79 }
  80
  81 static HRESULT STDMETHODCALLTYPE Site_SaveObject(IOleClientSite *iface)
  82 {
  83     return E_NOTIMPL;
  84 }
  85
  86 static HRESULT STDMETHODCALLTYPE Site_GetMoniker(IOleClientSite *iface, DWORD dwAssign, DWORD dwWhichMoniker, IMoniker **ppmk)
  87 {
  88     return E_NOTIMPL;
  89 }
  90
  91 static HRESULT STDMETHODCALLTYPE Site_GetContainer(IOleClientSite *iface, LPOLECONTAINER *ppContainer)
  92 {
  93     *ppContainer = NULL;
  94
  95     return E_NOINTERFACE;
  96 }
  97
  98 static HRESULT STDMETHODCALLTYPE Site_ShowObject(IOleClientSite *iface)
  99 {
 100     return NOERROR;
 101 }
 102
 103 static HRESULT STDMETHODCALLTYPE Site_OnShowWindow(IOleClientSite *iface, BOOL fShow)
 104 {
 105     return E_NOTIMPL;
 106 }
 107
 108 static HRESULT STDMETHODCALLTYPE Site_RequestNewObjectLayout(IOleClientSite *iface)
 109 {
 110     return E_NOTIMPL;
 111 }
 112
 113 static const IOleClientSiteVtbl MyIOleClientSiteTable =
 114 {
 115     Site_QueryInterface,
 116     Site_AddRef,
 117     Site_Release,
 118     Site_SaveObject,
 119     Site_GetMoniker,
 120     Site_GetContainer,
 121     Site_ShowObject,
 122     Site_OnShowWindow,
 123     Site_RequestNewObjectLayout
 124 };
 125
 126 static HRESULT STDMETHODCALLTYPE UI_QueryInterface(IDocHostUIHandler *iface, REFIID riid, LPVOID *ppvObj)
 127 {
 128     ICOM_THIS_MULTI(IOleClientSiteImpl, lpvtblDocHostUIHandler, iface);
 129     return Site_QueryInterface((IOleClientSite *)This, riid, ppvObj);
 130 }
 131
 132 static ULONG STDMETHODCALLTYPE UI_AddRef(IDocHostUIHandler *iface)
 133 {
 134     return 1;
 135 }
 136
 137 static ULONG STDMETHODCALLTYPE UI_Release(IDocHostUIHandler * iface)
 138 {
 139     return 2;
 140 }
 141
 142 static HRESULT STDMETHODCALLTYPE UI_ShowContextMenu(IDocHostUIHandler *iface, DWORD dwID, POINT *ppt, IUnknown *pcmdtReserved, IDispatch *pdispReserved)
 143 {
 144     return S_OK;
 145 }
 146
 147 static HRESULT STDMETHODCALLTYPE UI_GetHostInfo(IDocHostUIHandler *iface, DOCHOSTUIINFO *pInfo)
 148 {
 149     pInfo->cbSize = sizeof(DOCHOSTUIINFO);
 150     pInfo->dwFlags = DOCHOSTUIFLAG_NO3DBORDER;
 151     pInfo->dwDoubleClick = DOCHOSTUIDBLCLK_DEFAULT;
 152
 153     return S_OK;
 154 }
 155
 156 static HRESULT STDMETHODCALLTYPE UI_ShowUI(IDocHostUIHandler *iface, DWORD dwID, IOleInPlaceActiveObject *pActiveObject, IOleCommandTarget *pCommandTarget, IOleInPlaceFrame *pFrame, IOleInPlaceUIWindow *pDoc)
 157 {
 158     return S_OK;
 159 }
 160
 161 static HRESULT STDMETHODCALLTYPE UI_HideUI(IDocHostUIHandler *iface)
 162 {
 163     return S_OK;
 164 }
 165
 166 static HRESULT STDMETHODCALLTYPE UI_UpdateUI(IDocHostUIHandler *iface)
 167 {
 168     return S_OK;
 169 }
 170
 171 static HRESULT STDMETHODCALLTYPE UI_EnableModeless(IDocHostUIHandler *iface, BOOL fEnable)
 172 {
 173     return S_OK;
 174 }
 175
 176 static HRESULT STDMETHODCALLTYPE UI_OnDocWindowActivate(IDocHostUIHandler *iface, BOOL fActivate)
 177 {
 178     return S_OK;
 179 }
 180
 181 static HRESULT STDMETHODCALLTYPE UI_OnFrameWindowActivate(IDocHostUIHandler *iface, BOOL fActivate)
 182 {
 183     return S_OK;
 184 }
 185
 186 static HRESULT STDMETHODCALLTYPE UI_ResizeBorder(IDocHostUIHandler *iface, LPCRECT prcBorder, IOleInPlaceUIWindow *pUIWindow, BOOL fRameWindow)
 187 {
 188     return S_OK;
 189 }
 190
 191 static HRESULT STDMETHODCALLTYPE UI_TranslateAccelerator(IDocHostUIHandler *iface, LPMSG lpMsg, const GUID *pguidCmdGroup, DWORD nCmdID)
 192 {
 193     return S_FALSE;
 194 }
 195
 196 static HRESULT STDMETHODCALLTYPE UI_GetOptionKeyPath(IDocHostUIHandler *iface, LPOLESTR *pchKey, DWORD dw)
 197 {
 198     return S_FALSE;
 199 }
 200
 201 static HRESULT STDMETHODCALLTYPE UI_GetDropTarget(IDocHostUIHandler *iface, IDropTarget *pDropTarget, IDropTarget **ppDropTarget)
 202 {
 203     return S_FALSE;
 204 }
 205
 206 static HRESULT STDMETHODCALLTYPE UI_GetExternal(IDocHostUIHandler *iface, IDispatch **ppDispatch)
 207 {
 208     *ppDispatch = NULL;
 209     return S_FALSE;
 210 }
 211
 212 static HRESULT STDMETHODCALLTYPE UI_TranslateUrl(IDocHostUIHandler *iface, DWORD dwTranslate, OLECHAR *pchURLIn, OLECHAR **ppchURLOut)
 213 {
 214     *ppchURLOut = NULL;
 215     return S_FALSE;
 216 }
 217
 218 static HRESULT STDMETHODCALLTYPE UI_FilterDataObject(IDocHostUIHandler *iface, IDataObject *pDO, IDataObject **ppDORet)
 219 {
 220     *ppDORet = NULL;
 221     return S_FALSE;
 222 }
 223
 224 static const IDocHostUIHandlerVtbl MyIDocHostUIHandlerTable =
 225 {
 226     UI_QueryInterface,
 227     UI_AddRef,
 228     UI_Release,
 229     UI_ShowContextMenu,
 230     UI_GetHostInfo,
 231     UI_ShowUI,
 232     UI_HideUI,
 233     UI_UpdateUI,
 234     UI_EnableModeless,
 235     UI_OnDocWindowActivate,
 236     UI_OnFrameWindowActivate,
 237     UI_ResizeBorder,
 238     UI_TranslateAccelerator,
 239     UI_GetOptionKeyPath,
 240     UI_GetDropTarget,
 241     UI_GetExternal,
 242     UI_TranslateUrl,
 243     UI_FilterDataObject
 244 };
 245
 246 static HRESULT STDMETHODCALLTYPE InPlace_QueryInterface(IOleInPlaceSite *iface, REFIID riid, LPVOID *ppvObj)
 247 {
 248     ICOM_THIS_MULTI(IOleClientSiteImpl, lpvtblOleInPlaceSite, iface);
 249     return Site_QueryInterface((IOleClientSite *)This, riid, ppvObj);
 250 }
 251
 252 static ULONG STDMETHODCALLTYPE InPlace_AddRef(IOleInPlaceSite *iface)
 253 {
 254     return 1;
 255 }
 256
 257 static ULONG STDMETHODCALLTYPE InPlace_Release(IOleInPlaceSite *iface)
 258 {
 259     return 2;
 260 }
 261
 262 static HRESULT STDMETHODCALLTYPE InPlace_GetWindow(IOleInPlaceSite *iface, HWND *lphwnd)
 263 {
 264     ICOM_THIS_MULTI(IOleClientSiteImpl, lpvtblOleInPlaceSite, iface);
 265     *lphwnd = This->hwndWindow;
 266
 267     return S_OK;
 268 }
 269
 270 static HRESULT STDMETHODCALLTYPE InPlace_ContextSensitiveHelp(IOleInPlaceSite *iface, BOOL fEnterMode)
 271 {
 272     return E_NOTIMPL;
 273 }
 274
 275 static HRESULT STDMETHODCALLTYPE InPlace_CanInPlaceActivate(IOleInPlaceSite *iface)
 276 {
 277     return S_OK;
 278 }
 279
 280 static HRESULT STDMETHODCALLTYPE InPlace_OnInPlaceActivate(IOleInPlaceSite *iface)
 281 {
 282     return S_OK;
 283 }
 284
 285 static HRESULT STDMETHODCALLTYPE InPlace_OnUIActivate(IOleInPlaceSite *iface)
 286 {
 287     return S_OK;
 288 }
 289
 290 static HRESULT STDMETHODCALLTYPE InPlace_GetWindowContext(IOleInPlaceSite *iface, LPOLEINPLACEFRAME *lplpFrame, LPOLEINPLACEUIWINDOW *lplpDoc, LPRECT lprcPosRect, LPRECT lprcClipRect, LPOLEINPLACEFRAMEINFO lpFrameInfo)
 291 {
 292     ICOM_THIS_MULTI(IOleClientSiteImpl, lpvtblOleInPlaceSite, iface);
 293     *lplpFrame = (LPOLEINPLACEFRAME)&This->lpvtblOleInPlaceFrame;
 294     *lplpDoc = NULL;
 295
 296     lpFrameInfo->fMDIApp = FALSE;
 297     lpFrameInfo->hwndFrame = This->hwndWindow;
 298     lpFrameInfo->haccel = NULL;
 299     lpFrameInfo->cAccelEntries = 0;
 300
 301     return S_OK;
 302 }
 303
 304 static HRESULT STDMETHODCALLTYPE InPlace_Scroll(IOleInPlaceSite *iface, SIZE scrollExtent)
 305 {
 306     return E_NOTIMPL;
 307 }
 308
 309 static HRESULT STDMETHODCALLTYPE InPlace_OnUIDeactivate(IOleInPlaceSite *iface, BOOL fUndoable)
 310 {
 311     return S_OK;
 312 }
 313
 314 static HRESULT STDMETHODCALLTYPE InPlace_OnInPlaceDeactivate(IOleInPlaceSite *iface)
 315 {
 316     return S_OK;
 317 }
 318
 319 static HRESULT STDMETHODCALLTYPE InPlace_DiscardUndoState(IOleInPlaceSite *iface)
 320 {
 321     return E_NOTIMPL;
 322 }
 323
 324 static HRESULT STDMETHODCALLTYPE InPlace_DeactivateAndUndo(IOleInPlaceSite *iface)
 325 {
 326     return E_NOTIMPL;
 327 }
 328
 329 static HRESULT STDMETHODCALLTYPE InPlace_OnPosRectChange(IOleInPlaceSite *iface, LPCRECT lprcPosRect)
 330 {
 331     ICOM_THIS_MULTI(IOleClientSiteImpl, lpvtblOleInPlaceSite, iface);
 332     IOleInPlaceObject *inplace;
 333
 334     if (!IOleObject_QueryInterface(This->pBrowserObject, &IID_IOleInPlaceObject, (void **)&inplace))
 335         IOleInPlaceObject_SetObjectRects(inplace, lprcPosRect, lprcPosRect);
 336
 337     return S_OK;
 338 }
 339
 340 static const IOleInPlaceSiteVtbl MyIOleInPlaceSiteTable =
 341 {
 342     InPlace_QueryInterface,
 343     InPlace_AddRef,
 344     InPlace_Release,
 345     InPlace_GetWindow,
 346     InPlace_ContextSensitiveHelp,
 347     InPlace_CanInPlaceActivate,
 348     InPlace_OnInPlaceActivate,
 349     InPlace_OnUIActivate,
 350     InPlace_GetWindowContext,
 351     InPlace_Scroll,
 352     InPlace_OnUIDeactivate,
 353     InPlace_OnInPlaceDeactivate,
 354     InPlace_DiscardUndoState,
 355     InPlace_DeactivateAndUndo,
 356     InPlace_OnPosRectChange
 357 };
 358
 359 static HRESULT STDMETHODCALLTYPE Frame_QueryInterface(IOleInPlaceFrame *iface, REFIID riid, LPVOID *ppvObj)
 360 {
 361     return E_NOTIMPL;
 362 }
 363
 364 static ULONG STDMETHODCALLTYPE Frame_AddRef(IOleInPlaceFrame *iface)
 365 {
 366     return 1;
 367 }
 368
 369 static ULONG STDMETHODCALLTYPE Frame_Release(IOleInPlaceFrame *iface)
 370 {
 371     return 2;
 372 }
 373
 374 static HRESULT STDMETHODCALLTYPE Frame_GetWindow(IOleInPlaceFrame *iface, HWND *lphwnd)
 375 {
 376     ICOM_THIS_MULTI(IOleClientSiteImpl, lpvtblOleInPlaceFrame, iface);
 377     *lphwnd = This->hwndWindow;
 378
 379     return S_OK;
 380 }
 381
 382 static HRESULT STDMETHODCALLTYPE Frame_ContextSensitiveHelp(IOleInPlaceFrame *iface, BOOL fEnterMode)
 383 {
 384     return E_NOTIMPL;
 385 }
 386
 387 static HRESULT STDMETHODCALLTYPE Frame_GetBorder(IOleInPlaceFrame *iface, LPRECT lprectBorder)
 388 {
 389     return E_NOTIMPL;
 390 }
 391
 392 static HRESULT STDMETHODCALLTYPE Frame_RequestBorderSpace(IOleInPlaceFrame *iface, LPCBORDERWIDTHS pborderwidths)
 393 {
 394     return E_NOTIMPL;
 395 }
 396
 397 static HRESULT STDMETHODCALLTYPE Frame_SetBorderSpace(IOleInPlaceFrame *iface, LPCBORDERWIDTHS pborderwidths)
 398 {
 399     return E_NOTIMPL;
 400 }
 401
 402 static HRESULT STDMETHODCALLTYPE Frame_SetActiveObject(IOleInPlaceFrame *iface, IOleInPlaceActiveObject *pActiveObject, LPCOLESTR pszObjName)
 403 {
 404     return S_OK;
 405 }
 406
 407 static HRESULT STDMETHODCALLTYPE Frame_InsertMenus(IOleInPlaceFrame *iface, HMENU hmenuShared, LPOLEMENUGROUPWIDTHS lpMenuWidths)
 408 {
 409     return E_NOTIMPL;
 410 }
 411
 412 static HRESULT STDMETHODCALLTYPE Frame_SetMenu(IOleInPlaceFrame *iface, HMENU hmenuShared, HOLEMENU holemenu, HWND hwndActiveObject)
 413 {
 414     return S_OK;
 415 }
 416
 417 static HRESULT STDMETHODCALLTYPE Frame_RemoveMenus(IOleInPlaceFrame *iface, HMENU hmenuShared)
 418 {
 419     return E_NOTIMPL;
 420 }
 421
 422 static HRESULT STDMETHODCALLTYPE Frame_SetStatusText(IOleInPlaceFrame *iface, LPCOLESTR pszStatusText)
 423 {
 424     return S_OK;
 425 }
 426
 427 static HRESULT STDMETHODCALLTYPE Frame_EnableModeless(IOleInPlaceFrame *iface, BOOL fEnable)
 428 {
 429     return S_OK;
 430 }
 431
 432 static HRESULT STDMETHODCALLTYPE Frame_TranslateAccelerator(IOleInPlaceFrame *iface, LPMSG lpmsg, WORD wID)
 433 {
 434     return E_NOTIMPL;
 435 }
 436
 437 static const IOleInPlaceFrameVtbl MyIOleInPlaceFrameTable =
 438 {
 439     Frame_QueryInterface,
 440     Frame_AddRef,
 441     Frame_Release,
 442     Frame_GetWindow,
 443     Frame_ContextSensitiveHelp,
 444     Frame_GetBorder,
 445     Frame_RequestBorderSpace,
 446     Frame_SetBorderSpace,
 447     Frame_SetActiveObject,
 448     Frame_InsertMenus,
 449     Frame_SetMenu,
 450     Frame_RemoveMenus,
 451     Frame_SetStatusText,
 452     Frame_EnableModeless,
 453     Frame_TranslateAccelerator
 454 };
 455
 456 static HRESULT STDMETHODCALLTYPE Storage_QueryInterface(IStorage *This, REFIID riid, LPVOID *ppvObj)
 457 {
 458     return E_NOTIMPL;
 459 }
 460
 461 static ULONG STDMETHODCALLTYPE Storage_AddRef(IStorage *This)
 462 {
 463     return 1;
 464 }
 465
 466 static ULONG STDMETHODCALLTYPE Storage_Release(IStorage *This)
 467 {
 468     return 2;
 469 }
 470
 471 static HRESULT STDMETHODCALLTYPE Storage_CreateStream(IStorage *This, const WCHAR *pwcsName, DWORD grfMode, DWORD reserved1, DWORD reserved2, IStream **ppstm)
 472 {
 473     return E_NOTIMPL;
 474 }
 475
 476 static HRESULT STDMETHODCALLTYPE Storage_OpenStream(IStorage *This, const WCHAR * pwcsName, void *reserved1, DWORD grfMode, DWORD reserved2, IStream **ppstm)
 477 {
 478     return E_NOTIMPL;
 479 }
 480
 481 static HRESULT STDMETHODCALLTYPE Storage_CreateStorage(IStorage *This, const WCHAR *pwcsName, DWORD grfMode, DWORD reserved1, DWORD reserved2, IStorage **ppstg)
 482 {
 483     return E_NOTIMPL;
 484 }
 485
 486 static HRESULT STDMETHODCALLTYPE Storage_OpenStorage(IStorage *This, const WCHAR * pwcsName, IStorage * pstgPriority, DWORD grfMode, SNB snbExclude, DWORD reserved, IStorage **ppstg)
 487 {
 488     return E_NOTIMPL;
 489 }
 490
 491 static HRESULT STDMETHODCALLTYPE Storage_CopyTo(IStorage *This, DWORD ciidExclude, IID const *rgiidExclude, SNB snbExclude,IStorage *pstgDest)
 492 {
 493     return E_NOTIMPL;
 494 }
 495
 496 static HRESULT STDMETHODCALLTYPE Storage_MoveElementTo(IStorage *This, const OLECHAR *pwcsName,IStorage * pstgDest, const OLECHAR *pwcsNewName, DWORD grfFlags)
 497 {
 498     return E_NOTIMPL;
 499 }
 500
 501 static HRESULT STDMETHODCALLTYPE Storage_Commit(IStorage *This, DWORD grfCommitFlags)
 502 {
 503     return E_NOTIMPL;
 504 }
 505
 506 static HRESULT STDMETHODCALLTYPE Storage_Revert(IStorage *This)
 507 {
 508     return E_NOTIMPL;
 509 }
 510
 511 static HRESULT STDMETHODCALLTYPE Storage_EnumElements(IStorage *This, DWORD reserved1, void *reserved2, DWORD reserved3, IEnumSTATSTG **ppenum)
 512 {
 513     return E_NOTIMPL;
 514 }
 515
 516 static HRESULT STDMETHODCALLTYPE Storage_DestroyElement(IStorage *This, const OLECHAR *pwcsName)
 517 {
 518     return E_NOTIMPL;
 519 }
 520
 521 static HRESULT STDMETHODCALLTYPE Storage_RenameElement(IStorage *This, const WCHAR *pwcsOldName, const WCHAR *pwcsNewName)
 522 {
 523     return E_NOTIMPL;
 524 }
 525
 526 static HRESULT STDMETHODCALLTYPE Storage_SetElementTimes(IStorage *This, const WCHAR *pwcsName, FILETIME const *pctime, FILETIME const *patime, FILETIME const *pmtime)
 527 {
 528     return E_NOTIMPL;
 529 }
 530
 531 static HRESULT STDMETHODCALLTYPE Storage_SetClass(IStorage *This, REFCLSID clsid)
 532 {
 533     return S_OK;
 534 }
 535
 536 static HRESULT STDMETHODCALLTYPE Storage_SetStateBits(IStorage *This, DWORD grfStateBits, DWORD grfMask)
 537 {
 538     return E_NOTIMPL;
 539 }
 540
 541 static HRESULT STDMETHODCALLTYPE Storage_Stat(IStorage *This, STATSTG *pstatstg, DWORD grfStatFlag)
 542 {
 543     return E_NOTIMPL;
 544 }
 545
 546 static const IStorageVtbl MyIStorageTable =
 547 {
 548     Storage_QueryInterface,
 549     Storage_AddRef,
 550     Storage_Release,
 551     Storage_CreateStream,
 552     Storage_OpenStream,
 553     Storage_CreateStorage,
 554     Storage_OpenStorage,
 555     Storage_CopyTo,
 556     Storage_MoveElementTo,
 557     Storage_Commit,
 558     Storage_Revert,
 559     Storage_EnumElements,
 560     Storage_DestroyElement,
 561     Storage_RenameElement,
 562     Storage_SetElementTimes,
 563     Storage_SetClass,
 564     Storage_SetStateBits,
 565     Storage_Stat
 566 };
 567
 568 static IStorage MyIStorage = { &MyIStorageTable };
 569
 570 BOOL InitWebBrowser(HHInfo *info, HWND hwndParent)
 571 {
 572     IOleClientSiteImpl *iOleClientSiteImpl;
 573     IOleInPlaceObject *inplace;
 574     IOleObject *browserObject;
 575     IWebBrowser2 *webBrowser2;
 576     HRESULT hr;
 577     RECT rc;
 578
 579     iOleClientSiteImpl = hhctrl_alloc_zero(sizeof(IOleClientSiteImpl));
 580     if (!iOleClientSiteImpl)
 581         return FALSE;
 582
 583     iOleClientSiteImpl->ref = 1;
 584     iOleClientSiteImpl->lpVtbl = &MyIOleClientSiteTable;
 585     iOleClientSiteImpl->lpvtblOleInPlaceSite = &MyIOleInPlaceSiteTable;
 586     iOleClientSiteImpl->lpvtblOleInPlaceFrame = &MyIOleInPlaceFrameTable;
 587     iOleClientSiteImpl->hwndWindow = hwndParent;
 588     iOleClientSiteImpl->lpvtblDocHostUIHandler = &MyIDocHostUIHandlerTable;
 589
 590     hr = OleCreate(&CLSID_WebBrowser, &IID_IOleObject, OLERENDER_DRAW, 0,
 591                    (IOleClientSite *)iOleClientSiteImpl, &MyIStorage,
 592                    (void **)&browserObject);
 593
 594     info->client_site = (IOleClientSite *)iOleClientSiteImpl;
 595     info->wb_object = browserObject;
 596
 597     if (FAILED(hr)) goto error;
 598
 599     /* make the browser object accessible to the IOleClientSite implementation */
 600     iOleClientSiteImpl->pBrowserObject = browserObject;
 601
 602     GetClientRect(hwndParent, &rc);
 603
 604     hr = OleSetContainedObject((struct IUnknown *)browserObject, TRUE);
 605     if (FAILED(hr)) goto error;
 606
 607     hr = IOleObject_DoVerb(browserObject, OLEIVERB_SHOW, NULL,
 608                            (IOleClientSite *)iOleClientSiteImpl,
 609                            -1, hwndParent, &rc);
 610     if (FAILED(hr)) goto error;
 611
 612     hr = IOleObject_QueryInterface(browserObject, &IID_IOleInPlaceObject, (void**)&inplace);
 613     if (FAILED(hr)) goto error;
 614
 615     IOleInPlaceObject_SetObjectRects(inplace, &rc, &rc);
 616     IOleInPlaceObject_Release(inplace);
 617
 618     hr = IOleObject_QueryInterface(browserObject, &IID_IWebBrowser2,
 619                                    (void **)&webBrowser2);
 620     if (SUCCEEDED(hr))
 621     {
 622         info->web_browser = webBrowser2;
 623         return TRUE;
 624     }
 625
 626 error:
 627     ReleaseWebBrowser(info);
 628     hhctrl_free(iOleClientSiteImpl);
 629
 630     return FALSE;
 631 }
 632
 633 void ReleaseWebBrowser(HHInfo *info)
 634 {
 635     HRESULT hres;
 636
 637     if (info->web_browser)
 638     {
 639         IWebBrowser2_Release(info->web_browser);
 640         info->web_browser = NULL;
 641     }
 642
 643     if (info->client_site)
 644     {
 645         IOleClientSite_Release(info->client_site);
 646         info->client_site = NULL;
 647     }
 648
 649     if(info->wb_object) {
 650         IOleInPlaceSite *inplace;
 651
 652         hres = IOleObject_QueryInterface(info->wb_object, &IID_IOleInPlaceSite, (void**)&inplace);
 653         if(SUCCEEDED(hres)) {
 654             IOleInPlaceSite_OnInPlaceDeactivate(inplace);
 655             IOleInPlaceSite_Release(inplace);
 656         }
 657
 658         IOleObject_SetClientSite(info->wb_object, NULL);
 659
 660         IOleObject_Release(info->wb_object);
 661         info->wb_object = NULL;
 662     }
 663 }
 664
 665 void ResizeWebBrowser(HHInfo *info, DWORD dwWidth, DWORD dwHeight)
 666 {
 667     if (!info->web_browser)
 668         return;
 669
 670     IWebBrowser2_put_Width(info->web_browser, dwWidth);
 671     IWebBrowser2_put_Height(info->web_browser, dwHeight);
 672 }
 673
 674 void DoPageAction(HHInfo *info, DWORD dwAction)
 675 {
 676     IWebBrowser2 *pWebBrowser2 = info->web_browser;
 677
 678     if (!pWebBrowser2)
 679         return;
 680
 681     switch (dwAction)
 682     {
 683         case WB_GOBACK:
 684             IWebBrowser2_GoBack(pWebBrowser2);
 685             break;
 686         case WB_GOFORWARD:
 687             IWebBrowser2_GoForward(pWebBrowser2);
 688             break;
 689         case WB_GOHOME:
 690             IWebBrowser2_GoHome(pWebBrowser2);
 691             break;
 692         case WB_SEARCH:
 693             IWebBrowser2_GoSearch(pWebBrowser2);
 694             break;
 695         case WB_REFRESH:
 696             IWebBrowser2_Refresh(pWebBrowser2);
 697         case WB_STOP:
 698             IWebBrowser2_Stop(pWebBrowser2);
 699     }
 700 }