src/msw/webview_ie.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/webview_ie.cpp
   3 // Purpose:     wxMSW wxWebViewIE class implementation for web view component
   4 // Author:      Marianne Gagnon
   5 // Id:          $Id$
   6 // Copyright:   (c) 2010 Marianne Gagnon, Steven Lamerton
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #if defined(__BORLANDC__)
  14     #pragma hdrstop
  15 #endif
  16
  17 #include "wx/msw/webview_ie.h"
  18
  19
  20 #if wxUSE_WEBVIEW_IE
  21
  22 #include <olectl.h>
  23 #include <oleidl.h>
  24 #include <exdispid.h>
  25 #include <exdisp.h>
  26 #include <mshtml.h>
  27 #include "wx/msw/registry.h"
  28 // Various definitions are missing from mingw
  29 #ifdef __MINGW32__
  30 typedef enum CommandStateChangeConstants {
  31     CSC_UPDATECOMMANDS = (int) 0xFFFFFFFF,
  32     CSC_NAVIGATEFORWARD = 0x1,
  33     CSC_NAVIGATEBACK = 0x2
  34 } CommandStateChangeConstants;
  35
  36 #define DISPID_COMMANDSTATECHANGE 105
  37 #define DISPID_NAVIGATECOMPLETE2 252
  38 #define DISPID_NAVIGATEERROR 271
  39 #define DISPID_NEWWINDOW3 273
  40 #define OLECMDID_OPTICAL_ZOOM 63
  41 #define INET_E_ERROR_FIRST 0x800C0002L
  42 #define INET_E_INVALID_URL 0x800C0002L
  43 #define INET_E_NO_SESSION 0x800C0003L
  44 #define INET_E_CANNOT_CONNECT 0x800C0004L
  45 #define INET_E_RESOURCE_NOT_FOUND 0x800C0005L
  46 #define INET_E_OBJECT_NOT_FOUND 0x800C0006L
  47 #define INET_E_DATA_NOT_AVAILABLE 0x800C0007L
  48 #define INET_E_DOWNLOAD_FAILURE 0x800C0008L
  49 #define INET_E_AUTHENTICATION_REQUIRED 0x800C0009L
  50 #define INET_E_NO_VALID_MEDIA 0x800C000AL
  51 #define INET_E_CONNECTION_TIMEOUT 0x800C000BL
  52 #define INET_E_INVALID_REQUEST 0x800C000CL
  53 #define INET_E_UNKNOWN_PROTOCOL 0x800C000DL
  54 #define INET_E_SECURITY_PROBLEM 0x800C000EL
  55 #define INET_E_CANNOT_LOAD_DATA 0x800C000FL
  56 #define INET_E_CANNOT_INSTANTIATE_OBJECT 0x800C0010L
  57 #define INET_E_QUERYOPTION_UNKNOWN 0x800C0013L
  58 #define INET_E_REDIRECT_FAILED 0x800C0014L
  59 #define INET_E_REDIRECT_TO_DIR 0x800C0015L
  60 #define INET_E_CANNOT_LOCK_REQUEST 0x800C0016L
  61 #define INET_E_USE_EXTEND_BINDING 0x800C0017L
  62 #define INET_E_TERMINATED_BIND 0x800C0018L
  63 #define INET_E_INVALID_CERTIFICATE 0x800C0019L
  64 #define INET_E_CODE_DOWNLOAD_DECLINED 0x800C0100L
  65 #define INET_E_RESULT_DISPATCHED 0x800C0200L
  66 #define INET_E_CANNOT_REPLACE_SFP_FILE 0x800C0300L
  67 #define INET_E_CODE_INSTALL_BLOCKED_BY_HASH_POLICY 0x800C0500L
  68 #define INET_E_CODE_INSTALL_SUPPRESSED 0x800C0400L
  69
  70 #define REFRESH_NORMAL 0
  71 #define REFRESH_COMPLETELY 3
  72 #endif
  73
  74 BEGIN_EVENT_TABLE(wxWebViewIE, wxControl)
  75     EVT_ACTIVEX(wxID_ANY, wxWebViewIE::onActiveXEvent)
  76     EVT_ERASE_BACKGROUND(wxWebViewIE::onEraseBg)
  77 END_EVENT_TABLE()
  78
  79 bool wxWebViewIE::Create(wxWindow* parent,
  80            wxWindowID id,
  81            const wxString& url,
  82            const wxPoint& pos,
  83            const wxSize& size,
  84            long style,
  85            const wxString& name)
  86 {
  87     if (!wxControl::Create(parent, id, pos, size, style,
  88                            wxDefaultValidator, name))
  89     {
  90         return false;
  91     }
  92
  93     m_webBrowser = NULL;
  94     m_canNavigateBack = false;
  95     m_canNavigateForward = false;
  96     m_isBusy = false;
  97     m_historyLoadingFromList = false;
  98     m_historyEnabled = true;
  99     m_historyPosition = -1;
 100     m_zoomType = wxWEB_VIEW_ZOOM_TYPE_TEXT;
 101
 102     if (::CoCreateInstance(CLSID_WebBrowser, NULL,
 103                            CLSCTX_INPROC_SERVER, // CLSCTX_INPROC,
 104                            IID_IWebBrowser2 , (void**)&m_webBrowser) != 0)
 105     {
 106         wxLogError("Failed to initialize IE, CoCreateInstance returned an error");
 107         return false;
 108     }
 109
 110     m_ie.SetDispatchPtr(m_webBrowser); // wxAutomationObject will release itself
 111
 112     m_webBrowser->put_RegisterAsBrowser(VARIANT_TRUE);
 113     m_webBrowser->put_RegisterAsDropTarget(VARIANT_TRUE);
 114     //m_webBrowser->put_Silent(VARIANT_FALSE);
 115
 116     m_container = new wxActiveXContainer(this, IID_IWebBrowser2, m_webBrowser);
 117
 118     SetBackgroundStyle(wxBG_STYLE_PAINT);
 119     SetDoubleBuffered(true);
 120     LoadUrl(url);
 121     return true;
 122 }
 123
 124
 125 void wxWebViewIE::LoadUrl(const wxString& url)
 126 {
 127     m_ie.CallMethod("Navigate", (BSTR) url.wc_str(), NULL, NULL, NULL, NULL);
 128 }
 129
 130 void wxWebViewIE::SetPage(const wxString& html, const wxString&)
 131 {
 132     LoadUrl("about:blank");
 133
 134     // Let the wx events generated for navigation events be processed, so
 135     // that the underlying IE component completes its Document object.
 136     // FIXME: calling wxYield is not elegant nor very reliable probably
 137     wxYield();
 138
 139     // TODO: consider the "baseUrl" parameter if possible
 140     // TODO: consider encoding
 141     BSTR bstr = SysAllocString(html.wc_str());
 142
 143     // Creates a new one-dimensional array
 144     SAFEARRAY *psaStrings = SafeArrayCreateVector(VT_VARIANT, 0, 1);
 145     if (psaStrings != NULL)
 146     {
 147         VARIANT *param;
 148         HRESULT hr = SafeArrayAccessData(psaStrings, (LPVOID*)&param);
 149         param->vt = VT_BSTR;
 150         param->bstrVal = bstr;
 151
 152         hr = SafeArrayUnaccessData(psaStrings);
 153         IHTMLDocument2* document = GetDocument();
 154         document->write(psaStrings);
 155
 156         // SafeArrayDestroy calls SysFreeString for each BSTR
 157         SafeArrayDestroy(psaStrings);
 158     }
 159     else
 160     {
 161         wxLogError("wxWebViewIE::SetPage() : psaStrings is NULL");
 162     }
 163
 164 }
 165
 166 wxString wxWebViewIE::GetPageSource()
 167 {
 168     IHTMLDocument2* document = GetDocument();
 169     IHTMLElement *bodyTag = NULL;
 170     IHTMLElement *htmlTag = NULL;
 171     wxString source;
 172     HRESULT hr = document->get_body(&bodyTag);
 173     if(SUCCEEDED(hr))
 174     {
 175         hr = bodyTag->get_parentElement(&htmlTag);
 176         if(SUCCEEDED(hr))
 177         {
 178             BSTR bstr;
 179             htmlTag->get_outerHTML(&bstr);
 180             source = wxString(bstr);
 181             htmlTag->Release();
 182         }
 183         bodyTag->Release();
 184     }
 185
 186     document->Release();
 187     return source;
 188 }
 189
 190 wxWebViewZoom wxWebViewIE::GetZoom()
 191 {
 192     if(m_zoomType == wxWEB_VIEW_ZOOM_TYPE_LAYOUT)
 193         return GetIEOpticalZoom();
 194     else if(m_zoomType == wxWEB_VIEW_ZOOM_TYPE_TEXT)
 195         return GetIETextZoom();
 196     else
 197         wxFAIL;
 198
 199     //Dummy return to stop compiler warnings
 200     return wxWEB_VIEW_ZOOM_MEDIUM;
 201
 202 }
 203
 204 void wxWebViewIE::SetZoom(wxWebViewZoom zoom)
 205 {
 206     if(m_zoomType == wxWEB_VIEW_ZOOM_TYPE_LAYOUT)
 207         SetIEOpticalZoom(zoom);
 208     else if(m_zoomType == wxWEB_VIEW_ZOOM_TYPE_TEXT)
 209         SetIETextZoom(zoom);
 210     else
 211         wxFAIL;
 212 }
 213
 214 void wxWebViewIE::SetIETextZoom(wxWebViewZoom level)
 215 {
 216     //We do not use OLECMDID_OPTICAL_GETZOOMRANGE as the docs say the range
 217     //is 0 to 4 so the check is unnecessary, these match exactly with the
 218     //enum values
 219     VARIANT zoomVariant;
 220     VariantInit (&zoomVariant);
 221     V_VT(&zoomVariant) = VT_I4;
 222     V_I4(&zoomVariant) = level;
 223
 224     HRESULT result = m_webBrowser->ExecWB(OLECMDID_ZOOM,
 225                                           OLECMDEXECOPT_DONTPROMPTUSER,
 226                                           &zoomVariant, NULL);
 227     wxASSERT(result == S_OK);
 228 }
 229
 230 wxWebViewZoom wxWebViewIE::GetIETextZoom()
 231 {
 232     VARIANT zoomVariant;
 233     VariantInit (&zoomVariant);
 234     V_VT(&zoomVariant) = VT_I4;
 235
 236     HRESULT result = m_webBrowser->ExecWB(OLECMDID_ZOOM,
 237                                           OLECMDEXECOPT_DONTPROMPTUSER,
 238                                           NULL, &zoomVariant);
 239     wxASSERT(result == S_OK);
 240
 241     //We can safely cast here as we know that the range matches our enum
 242     return static_cast<wxWebViewZoom>(V_I4(&zoomVariant));
 243 }
 244
 245 void wxWebViewIE::SetIEOpticalZoom(wxWebViewZoom level)
 246 {
 247     //We do not use OLECMDID_OPTICAL_GETZOOMRANGE as the docs say the range
 248     //is 10 to 1000 so the check is unnecessary
 249     VARIANT zoomVariant;
 250     VariantInit (&zoomVariant);
 251     V_VT(&zoomVariant) = VT_I4;
 252
 253     //We make a somewhat arbitray map here, taken from values used by webkit
 254     switch(level)
 255     {
 256         case wxWEB_VIEW_ZOOM_TINY:
 257             V_I4(&zoomVariant) = 60;
 258             break;
 259         case wxWEB_VIEW_ZOOM_SMALL:
 260             V_I4(&zoomVariant) = 80;
 261             break;
 262         case wxWEB_VIEW_ZOOM_MEDIUM:
 263             V_I4(&zoomVariant) = 100;
 264             break;
 265         case wxWEB_VIEW_ZOOM_LARGE:
 266             V_I4(&zoomVariant) = 130;
 267             break;
 268         case wxWEB_VIEW_ZOOM_LARGEST:
 269             V_I4(&zoomVariant) = 160;
 270             break;
 271         default:
 272             wxFAIL;
 273     }
 274
 275     HRESULT result = m_webBrowser->ExecWB((OLECMDID)OLECMDID_OPTICAL_ZOOM,
 276                                           OLECMDEXECOPT_DODEFAULT,
 277                                           &zoomVariant,
 278                                           NULL);
 279     wxASSERT(result == S_OK);
 280 }
 281
 282 wxWebViewZoom wxWebViewIE::GetIEOpticalZoom()
 283 {
 284     VARIANT zoomVariant;
 285     VariantInit (&zoomVariant);
 286     V_VT(&zoomVariant) = VT_I4;
 287
 288     HRESULT result = m_webBrowser->ExecWB((OLECMDID)OLECMDID_OPTICAL_ZOOM,
 289                                           OLECMDEXECOPT_DODEFAULT, NULL,
 290                                           &zoomVariant);
 291     wxASSERT(result == S_OK);
 292
 293     const int zoom = V_I4(&zoomVariant);
 294
 295     //We make a somewhat arbitray map here, taken from values used by webkit
 296     if (zoom <= 65)
 297     {
 298         return wxWEB_VIEW_ZOOM_TINY;
 299     }
 300     else if (zoom > 65 && zoom <= 90)
 301     {
 302         return wxWEB_VIEW_ZOOM_SMALL;
 303     }
 304     else if (zoom > 90 && zoom <= 115)
 305     {
 306         return wxWEB_VIEW_ZOOM_MEDIUM;
 307     }
 308     else if (zoom > 115 && zoom <= 145)
 309     {
 310         return wxWEB_VIEW_ZOOM_LARGE;
 311     }
 312     else /*if (zoom > 145) */ //Using else removes a compiler warning
 313     {
 314         return wxWEB_VIEW_ZOOM_LARGEST;
 315     }
 316 }
 317
 318 void wxWebViewIE::SetZoomType(wxWebViewZoomType type)
 319 {
 320     m_zoomType = type;
 321 }
 322
 323 wxWebViewZoomType wxWebViewIE::GetZoomType() const
 324 {
 325     return m_zoomType;
 326 }
 327
 328 bool wxWebViewIE::CanSetZoomType(wxWebViewZoomType type) const
 329 {
 330     //IE 6 and below only support text zoom, so check the registry to see what
 331     //version we actually have
 332     wxRegKey key(wxRegKey::HKLM, "Software\\Microsoft\\Internet Explorer");
 333     wxString value;
 334     key.QueryValue("Version", value);
 335
 336     long version = wxAtoi(value.Left(1));
 337     if(version <= 6 && type == wxWEB_VIEW_ZOOM_TYPE_LAYOUT)
 338         return false;
 339     else
 340         return true;
 341 }
 342
 343 void wxWebViewIE::Print()
 344 {
 345     m_webBrowser->ExecWB(OLECMDID_PRINTPREVIEW,
 346                          OLECMDEXECOPT_DODEFAULT, NULL, NULL);
 347 }
 348
 349 bool wxWebViewIE::CanGoBack()
 350 {
 351     if(m_historyEnabled)
 352         return m_historyPosition > 0;
 353     else
 354         return false;
 355 }
 356
 357 bool wxWebViewIE::CanGoForward()
 358 {
 359     if(m_historyEnabled)
 360         return m_historyPosition != static_cast<int>(m_historyList.size()) - 1;
 361     else
 362         return false;
 363 }
 364
 365 void wxWebViewIE::LoadHistoryItem(wxSharedPtr<wxWebHistoryItem> item)
 366 {
 367     int pos = -1;
 368     for(unsigned int i = 0; i < m_historyList.size(); i++)
 369     {
 370         //We compare the actual pointers to find the correct item
 371         if(m_historyList[i].get() == item.get())
 372             pos = i;
 373     }
 374     wxASSERT_MSG(pos != static_cast<int>(m_historyList.size()),
 375                  "invalid history item");
 376     m_historyLoadingFromList = true;
 377     LoadUrl(item->GetUrl());
 378     m_historyPosition = pos;
 379 }
 380
 381 wxVector<wxSharedPtr<wxWebHistoryItem> > wxWebViewIE::GetBackwardHistory()
 382 {
 383     wxVector<wxSharedPtr<wxWebHistoryItem> > backhist;
 384     //As we don't have std::copy or an iterator constructor in the wxwidgets
 385     //native vector we construct it by hand
 386     for(int i = 0; i < m_historyPosition; i++)
 387     {
 388         backhist.push_back(m_historyList[i]);
 389     }
 390     return backhist;
 391 }
 392
 393 wxVector<wxSharedPtr<wxWebHistoryItem> > wxWebViewIE::GetForwardHistory()
 394 {
 395     wxVector<wxSharedPtr<wxWebHistoryItem> > forwardhist;
 396     //As we don't have std::copy or an iterator constructor in the wxwidgets
 397     //native vector we construct it by hand
 398     for(int i = m_historyPosition + 1; i < static_cast<int>(m_historyList.size()); i++)
 399     {
 400         forwardhist.push_back(m_historyList[i]);
 401     }
 402     return forwardhist;
 403 }
 404
 405 void wxWebViewIE::GoBack()
 406 {
 407     LoadHistoryItem(m_historyList[m_historyPosition - 1]);
 408 }
 409
 410 void wxWebViewIE::GoForward()
 411 {
 412     LoadHistoryItem(m_historyList[m_historyPosition + 1]);
 413 }
 414
 415 void wxWebViewIE::Stop()
 416 {
 417     m_ie.CallMethod("Stop");
 418 }
 419
 420 void wxWebViewIE::ClearHistory()
 421 {
 422     m_historyList.clear();
 423     m_historyPosition = -1;
 424 }
 425
 426 void wxWebViewIE::EnableHistory(bool enable)
 427 {
 428     m_historyEnabled = enable;
 429     m_historyList.clear();
 430     m_historyPosition = -1;
 431 }
 432
 433 void wxWebViewIE::Reload(wxWebViewReloadFlags flags)
 434 {
 435     VARIANTARG level;
 436     VariantInit(&level);
 437     V_VT(&level) = VT_I2;
 438
 439     switch(flags)
 440     {
 441         case wxWEB_VIEW_RELOAD_DEFAULT:
 442             V_I2(&level) = REFRESH_NORMAL;
 443             break;
 444         case wxWEB_VIEW_RELOAD_NO_CACHE:
 445             V_I2(&level) = REFRESH_COMPLETELY;
 446             break;
 447         default:
 448             wxFAIL_MSG("Unexpected reload type");
 449     }
 450
 451     m_webBrowser->Refresh2(&level);
 452 }
 453
 454 bool wxWebViewIE::IsOfflineMode()
 455 {
 456     wxVariant out = m_ie.GetProperty("Offline");
 457
 458     wxASSERT(out.GetType() == "bool");
 459
 460     return out.GetBool();
 461 }
 462
 463 void wxWebViewIE::SetOfflineMode(bool offline)
 464 {
 465     // FIXME: the wxWidgets docs do not really document what the return
 466     //        parameter of PutProperty is
 467     const bool success = m_ie.PutProperty("Offline", (offline ?
 468                                                       VARIANT_TRUE :
 469                                                       VARIANT_FALSE));
 470     wxASSERT(success);
 471 }
 472
 473 bool wxWebViewIE::IsBusy()
 474 {
 475     if (m_isBusy) return true;
 476
 477     wxVariant out = m_ie.GetProperty("Busy");
 478
 479     wxASSERT(out.GetType() == "bool");
 480
 481     return out.GetBool();
 482 }
 483
 484 wxString wxWebViewIE::GetCurrentURL()
 485 {
 486     wxVariant out = m_ie.GetProperty("LocationURL");
 487
 488     wxASSERT(out.GetType() == "string");
 489     return out.GetString();
 490 }
 491
 492 wxString wxWebViewIE::GetCurrentTitle()
 493 {
 494     IHTMLDocument2* document = GetDocument();
 495     BSTR title;
 496
 497     document->get_nameProp(&title);
 498     document->Release();
 499     return wxString(title);
 500 }
 501
 502 bool wxWebViewIE::CanCut()
 503 {
 504     return CanExecCommand("Cut");
 505 }
 506
 507 bool wxWebViewIE::CanCopy()
 508 {
 509     return CanExecCommand("Copy");
 510 }
 511 bool wxWebViewIE::CanPaste()
 512 {
 513     return CanExecCommand("Paste");
 514 }
 515
 516 void wxWebViewIE::Cut()
 517 {
 518     ExecCommand("Cut");
 519 }
 520
 521 void wxWebViewIE::Copy()
 522 {
 523     ExecCommand("Copy");
 524 }
 525
 526 void wxWebViewIE::Paste()
 527 {
 528     ExecCommand("Paste");
 529 }
 530
 531 bool wxWebViewIE::CanUndo()
 532 {
 533     return CanExecCommand("Undo");
 534 }
 535 bool wxWebViewIE::CanRedo()
 536 {
 537     return CanExecCommand("Redo");
 538 }
 539
 540 void wxWebViewIE::Undo()
 541 {
 542     ExecCommand("Undo");
 543 }
 544
 545 void wxWebViewIE::Redo()
 546 {
 547     ExecCommand("Redo");
 548 }
 549
 550 void wxWebViewIE::SetEditable(bool enable)
 551 {
 552     IHTMLDocument2* document = GetDocument();
 553     if( enable )
 554         document->put_designMode(SysAllocString(L"On"));
 555     else
 556         document->put_designMode(SysAllocString(L"Off"));
 557
 558     document->Release();
 559 }
 560
 561 bool wxWebViewIE::IsEditable()
 562 {
 563     IHTMLDocument2* document = GetDocument();
 564     BSTR mode;
 565     document->get_designMode(&mode);
 566     document->Release();
 567     if(wxString(mode) == "On")
 568         return true;
 569     else
 570         return false;
 571 }
 572
 573 void wxWebViewIE::SelectAll()
 574 {
 575     ExecCommand("SelectAll");
 576 }
 577
 578 bool wxWebViewIE::HasSelection()
 579 {
 580     IHTMLDocument2* document = GetDocument();
 581     IHTMLSelectionObject* selection;
 582     wxString sel;
 583     HRESULT hr = document->get_selection(&selection);
 584     if(SUCCEEDED(hr))
 585     {
 586         BSTR type;
 587         selection->get_type(&type);
 588         sel = wxString(type);
 589         selection->Release();
 590     }
 591     document->Release();
 592     return sel != "None";
 593 }
 594
 595 void wxWebViewIE::DeleteSelection()
 596 {
 597     ExecCommand("Delete");
 598 }
 599
 600 wxString wxWebViewIE::GetSelectedText()
 601 {
 602     IHTMLDocument2* document = GetDocument();
 603     IHTMLSelectionObject* selection;
 604     wxString selected;
 605     HRESULT hr = document->get_selection(&selection);
 606     if(SUCCEEDED(hr))
 607     {
 608         IDispatch* disrange;
 609         hr = selection->createRange(&disrange);
 610         if(SUCCEEDED(hr))
 611         {
 612             IHTMLTxtRange* range;
 613             hr = disrange->QueryInterface(IID_IHTMLTxtRange, (void**)&range);
 614             if(SUCCEEDED(hr))
 615             {
 616                 BSTR text;
 617                 range->get_text(&text);
 618                 selected = wxString(text);
 619                 range->Release();
 620             }
 621             disrange->Release();
 622         }
 623         selection->Release();
 624     }
 625     document->Release();
 626     return selected;
 627 }
 628
 629 wxString wxWebViewIE::GetSelectedSource()
 630 {
 631     IHTMLDocument2* document = GetDocument();
 632     IHTMLSelectionObject* selection;
 633     wxString selected;
 634     HRESULT hr = document->get_selection(&selection);
 635     if(SUCCEEDED(hr))
 636     {
 637         IDispatch* disrange;
 638         hr = selection->createRange(&disrange);
 639         if(SUCCEEDED(hr))
 640         {
 641             IHTMLTxtRange* range;
 642             hr = disrange->QueryInterface(IID_IHTMLTxtRange, (void**)&range);
 643             if(SUCCEEDED(hr))
 644             {
 645                 BSTR text;
 646                 range->get_htmlText(&text);
 647                 selected = wxString(text);
 648                 range->Release();
 649             }
 650             disrange->Release();
 651         }
 652         selection->Release();
 653     }
 654     document->Release();
 655     return selected;
 656 }
 657
 658 void wxWebViewIE::ClearSelection()
 659 {
 660     IHTMLDocument2* document = GetDocument();
 661     IHTMLSelectionObject* selection;
 662     wxString selected;
 663     HRESULT hr = document->get_selection(&selection);
 664     if(SUCCEEDED(hr))
 665     {
 666         selection->empty();
 667         selection->Release();
 668     }
 669     document->Release();
 670 }
 671
 672 wxString wxWebViewIE::GetPageText()
 673 {
 674     IHTMLDocument2* document = GetDocument();
 675     wxString text;
 676     IHTMLElement* body;
 677     HRESULT hr = document->get_body(&body);
 678     if(SUCCEEDED(hr))
 679     {
 680         BSTR out;
 681         body->get_innerText(&out);
 682         text = wxString(out);
 683         body->Release();
 684     }
 685     document->Release();
 686     return text;
 687 }
 688
 689 bool wxWebViewIE::CanExecCommand(wxString command)
 690 {
 691     IHTMLDocument2* document = GetDocument();
 692     VARIANT_BOOL enabled;
 693
 694     document->queryCommandEnabled(SysAllocString(command.wc_str()), &enabled);
 695     document->Release();
 696
 697     return (enabled == VARIANT_TRUE);
 698 }
 699
 700 void wxWebViewIE::ExecCommand(wxString command)
 701 {
 702     IHTMLDocument2* document = GetDocument();
 703     document->execCommand(SysAllocString(command.wc_str()), VARIANT_FALSE, VARIANT(), NULL);
 704     document->Release();
 705 }
 706
 707 IHTMLDocument2* wxWebViewIE::GetDocument()
 708 {
 709     wxVariant variant = m_ie.GetProperty("Document");
 710     IHTMLDocument2* document = (IHTMLDocument2*)variant.GetVoidPtr();
 711
 712     wxASSERT(document);
 713
 714     return document;
 715 }
 716
 717 void wxWebViewIE::onActiveXEvent(wxActiveXEvent& evt)
 718 {
 719     if (m_webBrowser == NULL) return;
 720
 721     switch (evt.GetDispatchId())
 722     {
 723         case DISPID_BEFORENAVIGATE2:
 724         {
 725             m_isBusy = true;
 726
 727             wxString url = evt[1].GetString();
 728             wxString target = evt[3].GetString();
 729
 730             wxWebNavigationEvent event(wxEVT_COMMAND_WEB_VIEW_NAVIGATING,
 731                                        GetId(), url, target, true);
 732             event.SetEventObject(this);
 733             HandleWindowEvent(event);
 734
 735             if (event.IsVetoed())
 736             {
 737                 wxActiveXEventNativeMSW* nativeParams =
 738                     evt.GetNativeParameters();
 739                 *V_BOOLREF(&nativeParams->pDispParams->rgvarg[0]) = VARIANT_TRUE;
 740             }
 741
 742             // at this point, either the navigation event has been cancelled
 743             // and we're not busy, either it was accepted and IWebBrowser2's
 744             // Busy property will be true; so we don't need our override
 745             // flag anymore.
 746             m_isBusy = false;
 747
 748             break;
 749         }
 750
 751         case DISPID_NAVIGATECOMPLETE2:
 752         {
 753             wxString url = evt[1].GetString();
 754             // TODO: set target parameter if possible
 755             wxString target = wxEmptyString;
 756             wxWebNavigationEvent event(wxEVT_COMMAND_WEB_VIEW_NAVIGATED,
 757                                        GetId(), url, target, false);
 758             event.SetEventObject(this);
 759             HandleWindowEvent(event);
 760             break;
 761         }
 762
 763         case DISPID_PROGRESSCHANGE:
 764         {
 765             // download progress
 766             break;
 767         }
 768
 769         case DISPID_DOCUMENTCOMPLETE:
 770         {
 771             //Only send a complete even if we are actually finished, this brings
 772             //the event in to line with webkit
 773             READYSTATE rs;
 774             m_webBrowser->get_ReadyState( &rs );
 775             if(rs != READYSTATE_COMPLETE)
 776                 break;
 777
 778             wxString url = evt[1].GetString();
 779
 780             //As we are complete we also add to the history list, but not if the
 781             //page is not the main page, ie it is a subframe
 782             if(m_historyEnabled && !m_historyLoadingFromList && url == GetCurrentURL())
 783             {
 784                 //If we are not at the end of the list, then erase everything
 785                 //between us and the end before adding the new page
 786                 if(m_historyPosition != static_cast<int>(m_historyList.size()) - 1)
 787                 {
 788                     m_historyList.erase(m_historyList.begin() + m_historyPosition + 1,
 789                                         m_historyList.end());
 790                 }
 791                 wxSharedPtr<wxWebHistoryItem> item(new wxWebHistoryItem(url, GetCurrentTitle()));
 792                 m_historyList.push_back(item);
 793                 m_historyPosition++;
 794             }
 795             //Reset as we are done now
 796             m_historyLoadingFromList = false;
 797             // TODO: set target parameter if possible
 798             wxString target = wxEmptyString;
 799             wxWebNavigationEvent event(wxEVT_COMMAND_WEB_VIEW_LOADED, GetId(),
 800                                        url, target, false);
 801             event.SetEventObject(this);
 802             HandleWindowEvent(event);
 803             break;
 804         }
 805
 806         case DISPID_STATUSTEXTCHANGE:
 807         {
 808             break;
 809         }
 810
 811         case DISPID_TITLECHANGE:
 812         {
 813             break;
 814         }
 815
 816         case DISPID_NAVIGATEERROR:
 817         {
 818             wxWebNavigationError errorType = wxWEB_NAV_ERR_OTHER;
 819             wxString errorCode = "?";
 820             switch (evt[3].GetLong())
 821             {
 822             case INET_E_INVALID_URL: // (0x800C0002L or -2146697214)
 823                 errorCode = "INET_E_INVALID_URL";
 824                 errorType = wxWEB_NAV_ERR_REQUEST;
 825                 break;
 826             case INET_E_NO_SESSION: // (0x800C0003L or -2146697213)
 827                 errorCode = "INET_E_NO_SESSION";
 828                 errorType = wxWEB_NAV_ERR_CONNECTION;
 829                 break;
 830             case INET_E_CANNOT_CONNECT: // (0x800C0004L or -2146697212)
 831                 errorCode = "INET_E_CANNOT_CONNECT";
 832                 errorType = wxWEB_NAV_ERR_CONNECTION;
 833                 break;
 834             case INET_E_RESOURCE_NOT_FOUND: // (0x800C0005L or -2146697211)
 835                 errorCode = "INET_E_RESOURCE_NOT_FOUND";
 836                 errorType = wxWEB_NAV_ERR_NOT_FOUND;
 837                 break;
 838             case INET_E_OBJECT_NOT_FOUND: // (0x800C0006L or -2146697210)
 839                 errorCode = "INET_E_OBJECT_NOT_FOUND";
 840                 errorType = wxWEB_NAV_ERR_NOT_FOUND;
 841                 break;
 842             case INET_E_DATA_NOT_AVAILABLE: // (0x800C0007L or -2146697209)
 843                 errorCode = "INET_E_DATA_NOT_AVAILABLE";
 844                 errorType = wxWEB_NAV_ERR_NOT_FOUND;
 845                 break;
 846             case INET_E_DOWNLOAD_FAILURE: // (0x800C0008L or -2146697208)
 847                 errorCode = "INET_E_DOWNLOAD_FAILURE";
 848                 errorType = wxWEB_NAV_ERR_CONNECTION;
 849                 break;
 850             case INET_E_AUTHENTICATION_REQUIRED: // (0x800C0009L or -2146697207)
 851                 errorCode = "INET_E_AUTHENTICATION_REQUIRED";
 852                 errorType = wxWEB_NAV_ERR_AUTH;
 853                 break;
 854             case INET_E_NO_VALID_MEDIA: // (0x800C000AL or -2146697206)
 855                 errorCode = "INET_E_NO_VALID_MEDIA";
 856                 errorType = wxWEB_NAV_ERR_REQUEST;
 857                 break;
 858             case INET_E_CONNECTION_TIMEOUT: // (0x800C000BL or -2146697205)
 859                 errorCode = "INET_E_CONNECTION_TIMEOUT";
 860                 errorType = wxWEB_NAV_ERR_CONNECTION;
 861                 break;
 862             case INET_E_INVALID_REQUEST: // (0x800C000CL or -2146697204)
 863                 errorCode = "INET_E_INVALID_REQUEST";
 864                 errorType = wxWEB_NAV_ERR_REQUEST;
 865                 break;
 866             case INET_E_UNKNOWN_PROTOCOL: // (0x800C000DL or -2146697203)
 867                 errorCode = "INET_E_UNKNOWN_PROTOCOL";
 868                 errorType = wxWEB_NAV_ERR_REQUEST;
 869                 break;
 870             case INET_E_SECURITY_PROBLEM: // (0x800C000EL or -2146697202)
 871                 errorCode = "INET_E_SECURITY_PROBLEM";
 872                 errorType = wxWEB_NAV_ERR_SECURITY;
 873                 break;
 874             case INET_E_CANNOT_LOAD_DATA: // (0x800C000FL or -2146697201)
 875                 errorCode = "INET_E_CANNOT_LOAD_DATA";
 876                 errorType = wxWEB_NAV_ERR_OTHER;
 877                 break;
 878             case INET_E_CANNOT_INSTANTIATE_OBJECT:
 879                 // CoCreateInstance will return an error code if this happens,
 880                 // we'll handle this above.
 881                 return;
 882                 break;
 883             case INET_E_REDIRECT_FAILED: // (0x800C0014L or -2146697196)
 884                 errorCode = "INET_E_REDIRECT_FAILED";
 885                 errorType = wxWEB_NAV_ERR_OTHER;
 886                 break;
 887             case INET_E_REDIRECT_TO_DIR: // (0x800C0015L or -2146697195)
 888                 errorCode = "INET_E_REDIRECT_TO_DIR";
 889                 errorType = wxWEB_NAV_ERR_REQUEST;
 890                 break;
 891             case INET_E_CANNOT_LOCK_REQUEST: // (0x800C0016L or -2146697194)
 892                 errorCode = "INET_E_CANNOT_LOCK_REQUEST";
 893                 errorType = wxWEB_NAV_ERR_OTHER;
 894                 break;
 895             case INET_E_USE_EXTEND_BINDING: // (0x800C0017L or -2146697193)
 896                 errorCode = "INET_E_USE_EXTEND_BINDING";
 897                 errorType = wxWEB_NAV_ERR_OTHER;
 898                 break;
 899             case INET_E_TERMINATED_BIND: // (0x800C0018L or -2146697192)
 900                 errorCode = "INET_E_TERMINATED_BIND";
 901                 errorType = wxWEB_NAV_ERR_OTHER;
 902                 break;
 903             case INET_E_INVALID_CERTIFICATE: // (0x800C0019L or -2146697191)
 904                 errorCode = "INET_E_INVALID_CERTIFICATE";
 905                 errorType = wxWEB_NAV_ERR_CERTIFICATE;
 906                 break;
 907             case INET_E_CODE_DOWNLOAD_DECLINED: // (0x800C0100L or -2146696960)
 908                 errorCode = "INET_E_CODE_DOWNLOAD_DECLINED";
 909                 errorType = wxWEB_NAV_ERR_USER_CANCELLED;
 910                 break;
 911             case INET_E_RESULT_DISPATCHED: // (0x800C0200L or -2146696704)
 912                 // cancel request cancelled...
 913                 errorCode = "INET_E_RESULT_DISPATCHED";
 914                 errorType = wxWEB_NAV_ERR_OTHER;
 915                 break;
 916             case INET_E_CANNOT_REPLACE_SFP_FILE: // (0x800C0300L or -2146696448)
 917                 errorCode = "INET_E_CANNOT_REPLACE_SFP_FILE";
 918                 errorType = wxWEB_NAV_ERR_SECURITY;
 919                 break;
 920             case INET_E_CODE_INSTALL_BLOCKED_BY_HASH_POLICY:
 921                 errorCode = "INET_E_CODE_INSTALL_BLOCKED_BY_HASH_POLICY";
 922                 errorType = wxWEB_NAV_ERR_SECURITY;
 923                 break;
 924             case INET_E_CODE_INSTALL_SUPPRESSED:
 925                 errorCode = "INET_E_CODE_INSTALL_SUPPRESSED";
 926                 errorType = wxWEB_NAV_ERR_SECURITY;
 927                 break;
 928             }
 929
 930             wxString url = evt[1].GetString();
 931             wxString target = evt[2].GetString();
 932             wxWebNavigationEvent event(wxEVT_COMMAND_WEB_VIEW_ERROR, GetId(),
 933                                        url, target, false);
 934             event.SetEventObject(this);
 935             event.SetInt(errorType);
 936             event.SetString(errorCode);
 937             HandleWindowEvent(event);
 938             break;
 939         }
 940
 941         case DISPID_COMMANDSTATECHANGE:
 942         {
 943             long commandId = evt[0].GetLong();
 944             bool enable = evt[1].GetBool();
 945             if (commandId == CSC_NAVIGATEBACK)
 946             {
 947                 m_canNavigateBack = enable;
 948             }
 949             else if (commandId == CSC_NAVIGATEFORWARD)
 950             {
 951                 m_canNavigateForward = enable;
 952             }
 953             break;
 954         }
 955         case DISPID_NEWWINDOW3:
 956         {
 957             wxString url = evt[4].GetString();
 958
 959             wxWebNavigationEvent event(wxEVT_COMMAND_WEB_VIEW_NEWWINDOW,
 960                                        GetId(), url, wxEmptyString, true);
 961             event.SetEventObject(this);
 962             HandleWindowEvent(event);
 963
 964             //If we veto the event then we cancel the new window
 965             if (event.IsVetoed())
 966             {
 967                 wxActiveXEventNativeMSW* nativeParams = evt.GetNativeParameters();
 968                 *V_BOOLREF(&nativeParams->pDispParams->rgvarg[3]) = VARIANT_TRUE;
 969             }
 970             break;
 971         }
 972     }
 973
 974     evt.Skip();
 975 }
 976
 977 #endif