src/gtk/webview_webkit.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/webview_webkit.cpp
   3 // Purpose:     GTK WebKit backend for web view component
   4 // Author:      Marianne Gagnon, Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 2010 Marianne Gagnon, 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #if wxUSE_WEBVIEW && wxUSE_WEBVIEW_WEBKIT
  14
  15 #include "wx/stockitem.h"
  16 #include "wx/gtk/webview_webkit.h"
  17 #include "wx/gtk/control.h"
  18 #include "wx/gtk/private.h"
  19 #include "wx/filesys.h"
  20 #include "wx/base64.h"
  21 #include <webkit/webkit.h>
  22
  23 // ----------------------------------------------------------------------------
  24 // GTK callbacks
  25 // ----------------------------------------------------------------------------
  26
  27 extern "C"
  28 {
  29
  30 static void
  31 wxgtk_webview_webkit_load_status(GtkWidget* widget,
  32                                  GParamSpec*,
  33                                  wxWebViewWebKit *webKitCtrl)
  34 {
  35     if (!webKitCtrl->m_ready) return;
  36
  37     wxString url = webKitCtrl->GetCurrentURL();
  38
  39     WebKitLoadStatus status;
  40     g_object_get(G_OBJECT(widget), "load-status", &status, NULL);
  41
  42     wxString target; // TODO: get target (if possible)
  43
  44     if (status == WEBKIT_LOAD_FINISHED)
  45     {
  46         WebKitWebBackForwardList* hist = webkit_web_view_get_back_forward_list(WEBKIT_WEB_VIEW(widget));
  47         WebKitWebHistoryItem* item = webkit_web_back_forward_list_get_current_item(hist);
  48         //We have to check if we are actually storing history
  49         //If the item isn't added we add it ourselves, it isn't added otherwise
  50         //with a custom scheme.
  51         if(WEBKIT_IS_WEB_HISTORY_ITEM(item) && webkit_web_history_item_get_uri(item) != url)
  52         {
  53             WebKitWebHistoryItem*
  54                 newitem = webkit_web_history_item_new_with_data
  55                           (
  56                             url.utf8_str(),
  57                             webKitCtrl->GetCurrentTitle().utf8_str()
  58                           );
  59             webkit_web_back_forward_list_add_item(hist, newitem);
  60         }
  61
  62         webKitCtrl->m_busy = false;
  63         wxWebViewEvent event(wxEVT_COMMAND_WEB_VIEW_LOADED,
  64                              webKitCtrl->GetId(),
  65                              url, target);
  66
  67         if (webKitCtrl && webKitCtrl->GetEventHandler())
  68             webKitCtrl->GetEventHandler()->ProcessEvent(event);
  69     }
  70     else if (status ==  WEBKIT_LOAD_COMMITTED)
  71     {
  72         webKitCtrl->m_busy = true;
  73         wxWebViewEvent event(wxEVT_COMMAND_WEB_VIEW_NAVIGATED,
  74                              webKitCtrl->GetId(),
  75                              url, target);
  76
  77         if (webKitCtrl && webKitCtrl->GetEventHandler())
  78             webKitCtrl->GetEventHandler()->ProcessEvent(event);
  79     }
  80 }
  81
  82 static gboolean
  83 wxgtk_webview_webkit_navigation(WebKitWebView *,
  84                                 WebKitWebFrame *frame,
  85                                 WebKitNetworkRequest *request,
  86                                 WebKitWebNavigationAction *,
  87                                 WebKitWebPolicyDecision *policy_decision,
  88                                 wxWebViewWebKit *webKitCtrl)
  89 {
  90     if(webKitCtrl->m_guard)
  91     {
  92         webKitCtrl->m_guard = false;
  93         //We set this to make sure that we don't try to load the page again from
  94         //the resource request callback
  95         webKitCtrl->m_vfsurl = webkit_network_request_get_uri(request);
  96         webkit_web_policy_decision_use(policy_decision);
  97         return FALSE;
  98     }
  99
 100     webKitCtrl->m_busy = true;
 101
 102     const gchar* uri = webkit_network_request_get_uri(request);
 103
 104     wxString target = webkit_web_frame_get_name (frame);
 105     wxWebViewEvent event(wxEVT_COMMAND_WEB_VIEW_NAVIGATING,
 106                          webKitCtrl->GetId(),
 107                          wxString( uri, wxConvUTF8 ),
 108                          target);
 109
 110     if (webKitCtrl && webKitCtrl->GetEventHandler())
 111         webKitCtrl->GetEventHandler()->ProcessEvent(event);
 112
 113     if (!event.IsAllowed())
 114     {
 115         webKitCtrl->m_busy = false;
 116         webkit_web_policy_decision_ignore(policy_decision);
 117         return TRUE;
 118     }
 119     else
 120     {
 121         wxString wxuri = uri;
 122         wxSharedPtr<wxWebViewHandler> handler;
 123         wxVector<wxSharedPtr<wxWebViewHandler> > hanlders = webKitCtrl->GetHandlers();
 124         //We are not vetoed so see if we match one of the additional handlers
 125         for(wxVector<wxSharedPtr<wxWebViewHandler> >::iterator it = hanlders.begin();
 126             it != hanlders.end(); ++it)
 127         {
 128             if(wxuri.substr(0, (*it)->GetName().length()) == (*it)->GetName())
 129             {
 130                 handler = (*it);
 131             }
 132         }
 133         //If we found a handler we can then use it to load the file directly
 134         //ourselves
 135         if(handler)
 136         {
 137             webKitCtrl->m_guard = true;
 138             wxFSFile* file = handler->GetFile(wxuri);
 139             if(file)
 140             {
 141                 webKitCtrl->SetPage(*file->GetStream(), wxuri);
 142             }
 143             //We need to throw some sort of error here if file is NULL
 144             webkit_web_policy_decision_ignore(policy_decision);
 145             return TRUE;
 146         }
 147         return FALSE;
 148     }
 149 }
 150
 151 static gboolean
 152 wxgtk_webview_webkit_error(WebKitWebView*,
 153                            WebKitWebFrame*,
 154                            gchar *uri,
 155                            gpointer web_error,
 156                            wxWebViewWebKit* webKitWindow)
 157 {
 158     webKitWindow->m_busy = false;
 159     wxWebViewNavigationError type = wxWEB_NAV_ERR_OTHER;
 160
 161     GError* error = (GError*)web_error;
 162     wxString description(error->message, wxConvUTF8);
 163
 164     if (strcmp(g_quark_to_string(error->domain), "soup_http_error_quark") == 0)
 165     {
 166         switch (error->code)
 167         {
 168             case SOUP_STATUS_CANCELLED:
 169                 type = wxWEB_NAV_ERR_USER_CANCELLED;
 170                 break;
 171
 172             case SOUP_STATUS_CANT_RESOLVE:
 173             case SOUP_STATUS_NOT_FOUND:
 174                 type = wxWEB_NAV_ERR_NOT_FOUND;
 175                 break;
 176
 177             case SOUP_STATUS_CANT_RESOLVE_PROXY:
 178             case SOUP_STATUS_CANT_CONNECT:
 179             case SOUP_STATUS_CANT_CONNECT_PROXY:
 180             case SOUP_STATUS_SSL_FAILED:
 181             case SOUP_STATUS_IO_ERROR:
 182                 type = wxWEB_NAV_ERR_CONNECTION;
 183                 break;
 184
 185             case SOUP_STATUS_MALFORMED:
 186             //case SOUP_STATUS_TOO_MANY_REDIRECTS:
 187                 type = wxWEB_NAV_ERR_REQUEST;
 188                 break;
 189
 190             //case SOUP_STATUS_NO_CONTENT:
 191             //case SOUP_STATUS_RESET_CONTENT:
 192
 193             case SOUP_STATUS_BAD_REQUEST:
 194                 type = wxWEB_NAV_ERR_REQUEST;
 195                 break;
 196
 197             case SOUP_STATUS_UNAUTHORIZED:
 198             case SOUP_STATUS_FORBIDDEN:
 199                 type = wxWEB_NAV_ERR_AUTH;
 200                 break;
 201
 202             case SOUP_STATUS_METHOD_NOT_ALLOWED:
 203             case SOUP_STATUS_NOT_ACCEPTABLE:
 204                 type = wxWEB_NAV_ERR_SECURITY;
 205                 break;
 206
 207             case SOUP_STATUS_PROXY_AUTHENTICATION_REQUIRED:
 208                 type = wxWEB_NAV_ERR_AUTH;
 209                 break;
 210
 211             case SOUP_STATUS_REQUEST_TIMEOUT:
 212                 type = wxWEB_NAV_ERR_CONNECTION;
 213                 break;
 214
 215             //case SOUP_STATUS_PAYMENT_REQUIRED:
 216             case SOUP_STATUS_REQUEST_ENTITY_TOO_LARGE:
 217             case SOUP_STATUS_REQUEST_URI_TOO_LONG:
 218             case SOUP_STATUS_UNSUPPORTED_MEDIA_TYPE:
 219                 type = wxWEB_NAV_ERR_REQUEST;
 220                 break;
 221
 222             case SOUP_STATUS_BAD_GATEWAY:
 223             case SOUP_STATUS_SERVICE_UNAVAILABLE:
 224             case SOUP_STATUS_GATEWAY_TIMEOUT:
 225                 type = wxWEB_NAV_ERR_CONNECTION;
 226                 break;
 227
 228             case SOUP_STATUS_HTTP_VERSION_NOT_SUPPORTED:
 229                 type = wxWEB_NAV_ERR_REQUEST;
 230                 break;
 231             //case SOUP_STATUS_INSUFFICIENT_STORAGE:
 232             //case SOUP_STATUS_NOT_EXTENDED:
 233         }
 234     }
 235     else if (strcmp(g_quark_to_string(error->domain),
 236                     "webkit-network-error-quark") == 0)
 237     {
 238         switch (error->code)
 239         {
 240             //WEBKIT_NETWORK_ERROR_FAILED:
 241             //WEBKIT_NETWORK_ERROR_TRANSPORT:
 242
 243             case WEBKIT_NETWORK_ERROR_UNKNOWN_PROTOCOL:
 244                 type = wxWEB_NAV_ERR_REQUEST;
 245                 break;
 246
 247             case WEBKIT_NETWORK_ERROR_CANCELLED:
 248                 type = wxWEB_NAV_ERR_USER_CANCELLED;
 249                 break;
 250
 251             case WEBKIT_NETWORK_ERROR_FILE_DOES_NOT_EXIST:
 252                 type = wxWEB_NAV_ERR_NOT_FOUND;
 253                 break;
 254         }
 255     }
 256     else if (strcmp(g_quark_to_string(error->domain),
 257                     "webkit-policy-error-quark") == 0)
 258     {
 259         switch (error->code)
 260         {
 261             //case WEBKIT_POLICY_ERROR_FAILED:
 262             //case WEBKIT_POLICY_ERROR_CANNOT_SHOW_MIME_TYPE:
 263             //case WEBKIT_POLICY_ERROR_CANNOT_SHOW_URL:
 264             //case WEBKIT_POLICY_ERROR_FRAME_LOAD_INTERRUPTED_BY_POLICY_CHANGE:
 265             case WEBKIT_POLICY_ERROR_CANNOT_USE_RESTRICTED_PORT:
 266                 type = wxWEB_NAV_ERR_SECURITY;
 267                 break;
 268         }
 269     }
 270     /*
 271     webkit_plugin_error_quark
 272     else
 273     {
 274         printf("Error domain %s\n", g_quark_to_string(error->domain));
 275     }
 276     */
 277
 278     wxWebViewEvent event(wxEVT_COMMAND_WEB_VIEW_ERROR,
 279                          webKitWindow->GetId(),
 280                          uri, "");
 281     event.SetString(description);
 282     event.SetInt(type);
 283
 284     if (webKitWindow && webKitWindow->GetEventHandler())
 285     {
 286         webKitWindow->GetEventHandler()->ProcessEvent(event);
 287     }
 288
 289     return FALSE;
 290 }
 291
 292 static gboolean
 293 wxgtk_webview_webkit_new_window(WebKitWebView*,
 294                                 WebKitWebFrame *frame,
 295                                 WebKitNetworkRequest *request,
 296                                 WebKitWebNavigationAction*,
 297                                 WebKitWebPolicyDecision *policy_decision,
 298                                 wxWebViewWebKit *webKitCtrl)
 299 {
 300     const gchar* uri = webkit_network_request_get_uri(request);
 301
 302     wxString target = webkit_web_frame_get_name (frame);
 303     wxWebViewEvent event(wxEVT_COMMAND_WEB_VIEW_NEWWINDOW,
 304                                        webKitCtrl->GetId(),
 305                                        wxString( uri, wxConvUTF8 ),
 306                                        target);
 307
 308     if (webKitCtrl && webKitCtrl->GetEventHandler())
 309         webKitCtrl->GetEventHandler()->ProcessEvent(event);
 310
 311     //We always want the user to handle this themselves
 312     webkit_web_policy_decision_ignore(policy_decision);
 313     return TRUE;
 314 }
 315
 316 static void
 317 wxgtk_webview_webkit_title_changed(WebKitWebView*,
 318                                    WebKitWebFrame*,
 319                                    gchar *title,
 320                                    wxWebViewWebKit *webKitCtrl)
 321 {
 322     wxWebViewEvent event(wxEVT_COMMAND_WEB_VIEW_TITLE_CHANGED,
 323                          webKitCtrl->GetId(),
 324                          webKitCtrl->GetCurrentURL(),
 325                          "");
 326     event.SetString(wxString(title, wxConvUTF8));
 327
 328     if (webKitCtrl && webKitCtrl->GetEventHandler())
 329         webKitCtrl->GetEventHandler()->ProcessEvent(event);
 330
 331 }
 332
 333 static void
 334 wxgtk_webview_webkit_resource_req(WebKitWebView *,
 335                                   WebKitWebFrame *,
 336                                   WebKitWebResource *,
 337                                   WebKitNetworkRequest *request,
 338                                   WebKitNetworkResponse *,
 339                                   wxWebViewWebKit *webKitCtrl)
 340 {
 341     wxString uri = webkit_network_request_get_uri(request);
 342
 343     wxSharedPtr<wxWebViewHandler> handler;
 344     wxVector<wxSharedPtr<wxWebViewHandler> > hanlders = webKitCtrl->GetHandlers();
 345
 346     //We are not vetoed so see if we match one of the additional handlers
 347     for(wxVector<wxSharedPtr<wxWebViewHandler> >::iterator it = hanlders.begin();
 348         it != hanlders.end(); ++it)
 349     {
 350         if(uri.substr(0, (*it)->GetName().length()) == (*it)->GetName())
 351         {
 352             handler = (*it);
 353         }
 354     }
 355     //If we found a handler we can then use it to load the file directly
 356     //ourselves
 357     if(handler)
 358     {
 359         //If it is requsting the page itself then return as we have already
 360         //loaded it from the archive
 361         if(webKitCtrl->m_vfsurl == uri)
 362             return;
 363
 364         wxFSFile* file = handler->GetFile(uri);
 365         if(file)
 366         {
 367             //We load the data into a data url to save it being written out again
 368             size_t size = file->GetStream()->GetLength();
 369             char *buffer = new char[size];
 370             file->GetStream()->Read(buffer, size);
 371             wxString data = wxBase64Encode(buffer, size);
 372             delete[] buffer;
 373             wxString mime = file->GetMimeType();
 374             wxString path = "data:" + mime + ";base64," + data;
 375             //Then we can redirect the call
 376             webkit_network_request_set_uri(request, path.utf8_str());
 377         }
 378
 379     }
 380 }
 381
 382 } // extern "C"
 383
 384 //-----------------------------------------------------------------------------
 385 // wxWebViewWebKit
 386 //-----------------------------------------------------------------------------
 387
 388 wxIMPLEMENT_DYNAMIC_CLASS(wxWebViewWebKit, wxWebView);
 389
 390 bool wxWebViewWebKit::Create(wxWindow *parent,
 391                       wxWindowID id,
 392                       const wxString &url,
 393                       const wxPoint& pos,
 394                       const wxSize& size,
 395                       long style,
 396                       const wxString& name)
 397 {
 398     m_ready = false;
 399     m_busy = false;
 400     m_guard = false;
 401
 402     if (!PreCreation( parent, pos, size ) ||
 403         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 404     {
 405         wxFAIL_MSG( wxT("wxWebViewWebKit creation failed") );
 406         return false;
 407     }
 408
 409     GtkWidget *scrolled_window = gtk_scrolled_window_new (NULL, NULL);
 410     web_view = webkit_web_view_new ();
 411     g_object_ref(web_view); // TODO: check memory management
 412
 413     m_widget = scrolled_window;
 414     g_object_ref(m_widget); // TODO: check memory management
 415
 416     /* Place the WebKitWebView in the GtkScrolledWindow */
 417     gtk_container_add (GTK_CONTAINER (scrolled_window), web_view);
 418     gtk_widget_show(web_view);
 419
 420     g_signal_connect_after(web_view, "notify::load-status",
 421                            G_CALLBACK(wxgtk_webview_webkit_load_status),
 422                            this);
 423     g_signal_connect_after(web_view, "navigation-policy-decision-requested",
 424                            G_CALLBACK(wxgtk_webview_webkit_navigation),
 425                            this);
 426     g_signal_connect_after(web_view, "load-error",
 427                            G_CALLBACK(wxgtk_webview_webkit_error),
 428                            this);
 429
 430     g_signal_connect_after(web_view, "new-window-policy-decision-requested",
 431                            G_CALLBACK(wxgtk_webview_webkit_new_window), this);
 432
 433     g_signal_connect_after(web_view, "title-changed",
 434                            G_CALLBACK(wxgtk_webview_webkit_title_changed), this);
 435
 436     g_signal_connect_after(web_view, "resource-request-starting",
 437                            G_CALLBACK(wxgtk_webview_webkit_resource_req), this);
 438
 439     m_parent->DoAddChild( this );
 440
 441     PostCreation(size);
 442
 443     /* Open a webpage */
 444     webkit_web_view_load_uri (WEBKIT_WEB_VIEW (web_view), url.utf8_str());
 445
 446     //Get the initial history limit so we can enable and disable it later
 447     WebKitWebBackForwardList* history;
 448     history = webkit_web_view_get_back_forward_list(WEBKIT_WEB_VIEW(web_view));
 449     m_historyLimit = webkit_web_back_forward_list_get_limit(history);
 450
 451     m_ready = true;
 452
 453     return true;
 454 }
 455
 456 bool wxWebViewWebKit::Enable( bool enable )
 457 {
 458     if (!wxControl::Enable(enable))
 459         return false;
 460
 461     gtk_widget_set_sensitive(GTK_BIN(m_widget)->child, enable);
 462
 463     //if (enable)
 464     //    GTKFixSensitivity();
 465
 466     return true;
 467 }
 468
 469 GdkWindow*
 470 wxWebViewWebKit::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
 471 {
 472     GdkWindow* window = gtk_widget_get_parent_window(m_widget);
 473     return window;
 474 }
 475
 476 void wxWebViewWebKit::ZoomIn()
 477 {
 478     webkit_web_view_zoom_in (WEBKIT_WEB_VIEW(web_view));
 479 }
 480
 481 void wxWebViewWebKit::ZoomOut()
 482 {
 483     webkit_web_view_zoom_out (WEBKIT_WEB_VIEW(web_view));
 484 }
 485
 486 void wxWebViewWebKit::SetWebkitZoom(float level)
 487 {
 488     webkit_web_view_set_zoom_level (WEBKIT_WEB_VIEW(web_view), level);
 489 }
 490
 491 float wxWebViewWebKit::GetWebkitZoom() const
 492 {
 493     return webkit_web_view_get_zoom_level (WEBKIT_WEB_VIEW(web_view));
 494 }
 495
 496 void wxWebViewWebKit::Stop()
 497 {
 498      webkit_web_view_stop_loading (WEBKIT_WEB_VIEW(web_view));
 499 }
 500
 501 void wxWebViewWebKit::Reload(wxWebViewReloadFlags flags)
 502 {
 503     if (flags & wxWEB_VIEW_RELOAD_NO_CACHE)
 504     {
 505         webkit_web_view_reload_bypass_cache (WEBKIT_WEB_VIEW(web_view));
 506     }
 507     else
 508     {
 509         webkit_web_view_reload (WEBKIT_WEB_VIEW(web_view));
 510     }
 511 }
 512
 513 void wxWebViewWebKit::LoadURL(const wxString& url)
 514 {
 515     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(web_view), wxGTK_CONV(url));
 516 }
 517
 518
 519 void wxWebViewWebKit::GoBack()
 520 {
 521     webkit_web_view_go_back (WEBKIT_WEB_VIEW(web_view));
 522 }
 523
 524 void wxWebViewWebKit::GoForward()
 525 {
 526     webkit_web_view_go_forward (WEBKIT_WEB_VIEW(web_view));
 527 }
 528
 529
 530 bool wxWebViewWebKit::CanGoBack() const
 531 {
 532     return webkit_web_view_can_go_back (WEBKIT_WEB_VIEW(web_view));
 533 }
 534
 535
 536 bool wxWebViewWebKit::CanGoForward() const
 537 {
 538     return webkit_web_view_can_go_forward (WEBKIT_WEB_VIEW(web_view));
 539 }
 540
 541 void wxWebViewWebKit::ClearHistory()
 542 {
 543     WebKitWebBackForwardList* history;
 544     history = webkit_web_view_get_back_forward_list(WEBKIT_WEB_VIEW(web_view));
 545     webkit_web_back_forward_list_clear(history);
 546 }
 547
 548 void wxWebViewWebKit::EnableHistory(bool enable)
 549 {
 550     WebKitWebBackForwardList* history;
 551     history = webkit_web_view_get_back_forward_list(WEBKIT_WEB_VIEW(web_view));
 552     if(enable)
 553     {
 554         webkit_web_back_forward_list_set_limit(history, m_historyLimit);
 555     }
 556     else
 557     {
 558         webkit_web_back_forward_list_set_limit(history, 0);
 559     }
 560 }
 561
 562 wxVector<wxSharedPtr<wxWebViewHistoryItem> > wxWebViewWebKit::GetBackwardHistory()
 563 {
 564     wxVector<wxSharedPtr<wxWebViewHistoryItem> > backhist;
 565     WebKitWebBackForwardList* history;
 566     history = webkit_web_view_get_back_forward_list(WEBKIT_WEB_VIEW(web_view));
 567     GList* list = webkit_web_back_forward_list_get_back_list_with_limit(history,
 568                                                                         m_historyLimit);
 569     //We need to iterate in reverse to get the order we desire
 570     for(int i = g_list_length(list) - 1; i >= 0 ; i--)
 571     {
 572         WebKitWebHistoryItem* gtkitem = (WebKitWebHistoryItem*)g_list_nth_data(list, i);
 573         wxWebViewHistoryItem* wxitem = new wxWebViewHistoryItem(
 574                                    webkit_web_history_item_get_uri(gtkitem),
 575                                    webkit_web_history_item_get_title(gtkitem));
 576         wxitem->m_histItem = gtkitem;
 577         wxSharedPtr<wxWebViewHistoryItem> item(wxitem);
 578         backhist.push_back(item);
 579     }
 580     return backhist;
 581 }
 582
 583 wxVector<wxSharedPtr<wxWebViewHistoryItem> > wxWebViewWebKit::GetForwardHistory()
 584 {
 585     wxVector<wxSharedPtr<wxWebViewHistoryItem> > forwardhist;
 586     WebKitWebBackForwardList* history;
 587     history = webkit_web_view_get_back_forward_list(WEBKIT_WEB_VIEW(web_view));
 588     GList* list = webkit_web_back_forward_list_get_forward_list_with_limit(history,
 589                                                                            m_historyLimit);
 590     for(guint i = 0; i < g_list_length(list); i++)
 591     {
 592         WebKitWebHistoryItem* gtkitem = (WebKitWebHistoryItem*)g_list_nth_data(list, i);
 593         wxWebViewHistoryItem* wxitem = new wxWebViewHistoryItem(
 594                                    webkit_web_history_item_get_uri(gtkitem),
 595                                    webkit_web_history_item_get_title(gtkitem));
 596         wxitem->m_histItem = gtkitem;
 597         wxSharedPtr<wxWebViewHistoryItem> item(wxitem);
 598         forwardhist.push_back(item);
 599     }
 600     return forwardhist;
 601 }
 602
 603 void wxWebViewWebKit::LoadHistoryItem(wxSharedPtr<wxWebViewHistoryItem> item)
 604 {
 605     WebKitWebHistoryItem* gtkitem = (WebKitWebHistoryItem*)item->m_histItem;
 606     if(gtkitem)
 607     {
 608         webkit_web_view_go_to_back_forward_item(WEBKIT_WEB_VIEW(web_view),
 609                                                 WEBKIT_WEB_HISTORY_ITEM(gtkitem));
 610     }
 611 }
 612
 613 bool wxWebViewWebKit::CanCut() const
 614 {
 615     return webkit_web_view_can_cut_clipboard(WEBKIT_WEB_VIEW(web_view));
 616 }
 617
 618 bool wxWebViewWebKit::CanCopy() const
 619 {
 620     return webkit_web_view_can_copy_clipboard(WEBKIT_WEB_VIEW(web_view));
 621 }
 622
 623 bool wxWebViewWebKit::CanPaste() const
 624 {
 625     return webkit_web_view_can_paste_clipboard(WEBKIT_WEB_VIEW(web_view));
 626 }
 627
 628 void wxWebViewWebKit::Cut()
 629 {
 630     webkit_web_view_cut_clipboard(WEBKIT_WEB_VIEW(web_view));
 631 }
 632
 633 void wxWebViewWebKit::Copy()
 634 {
 635     webkit_web_view_copy_clipboard(WEBKIT_WEB_VIEW(web_view));
 636 }
 637
 638 void wxWebViewWebKit::Paste()
 639 {
 640     webkit_web_view_paste_clipboard(WEBKIT_WEB_VIEW(web_view));
 641 }
 642
 643 bool wxWebViewWebKit::CanUndo() const
 644 {
 645     return webkit_web_view_can_undo(WEBKIT_WEB_VIEW(web_view));
 646 }
 647
 648 bool wxWebViewWebKit::CanRedo() const
 649 {
 650     return webkit_web_view_can_redo(WEBKIT_WEB_VIEW(web_view));
 651 }
 652
 653 void wxWebViewWebKit::Undo()
 654 {
 655     webkit_web_view_undo(WEBKIT_WEB_VIEW(web_view));
 656 }
 657
 658 void wxWebViewWebKit::Redo()
 659 {
 660     webkit_web_view_redo(WEBKIT_WEB_VIEW(web_view));
 661 }
 662
 663 wxString wxWebViewWebKit::GetCurrentURL() const
 664 {
 665     // FIXME: check which encoding the web kit control uses instead of
 666     // assuming UTF8 (here and elsewhere too)
 667     return wxString::FromUTF8(webkit_web_view_get_uri(
 668                                 WEBKIT_WEB_VIEW(web_view)));
 669 }
 670
 671
 672 wxString wxWebViewWebKit::GetCurrentTitle() const
 673 {
 674     return wxString::FromUTF8(webkit_web_view_get_title(
 675                                 WEBKIT_WEB_VIEW(web_view)));
 676 }
 677
 678
 679 wxString wxWebViewWebKit::GetPageSource() const
 680 {
 681     WebKitWebFrame* frame = webkit_web_view_get_main_frame(
 682         WEBKIT_WEB_VIEW(web_view));
 683     WebKitWebDataSource* src = webkit_web_frame_get_data_source (frame);
 684
 685     // TODO: check encoding with
 686     // const gchar*
 687     // webkit_web_data_source_get_encoding(WebKitWebDataSource *data_source);
 688     return wxString(webkit_web_data_source_get_data (src)->str, wxConvUTF8);
 689 }
 690
 691
 692 wxWebViewZoom wxWebViewWebKit::GetZoom() const
 693 {
 694     float zoom = GetWebkitZoom();
 695
 696     // arbitrary way to map float zoom to our common zoom enum
 697     if (zoom <= 0.65)
 698     {
 699         return wxWEB_VIEW_ZOOM_TINY;
 700     }
 701     else if (zoom > 0.65 && zoom <= 0.90)
 702     {
 703         return wxWEB_VIEW_ZOOM_SMALL;
 704     }
 705     else if (zoom > 0.90 && zoom <= 1.15)
 706     {
 707         return wxWEB_VIEW_ZOOM_MEDIUM;
 708     }
 709     else if (zoom > 1.15 && zoom <= 1.45)
 710     {
 711         return wxWEB_VIEW_ZOOM_LARGE;
 712     }
 713     else if (zoom > 1.45)
 714     {
 715         return wxWEB_VIEW_ZOOM_LARGEST;
 716     }
 717
 718     // to shut up compilers, this can never be reached logically
 719     wxASSERT(false);
 720     return wxWEB_VIEW_ZOOM_MEDIUM;
 721 }
 722
 723
 724 void wxWebViewWebKit::SetZoom(wxWebViewZoom zoom)
 725 {
 726     // arbitrary way to map our common zoom enum to float zoom
 727     switch (zoom)
 728     {
 729         case wxWEB_VIEW_ZOOM_TINY:
 730             SetWebkitZoom(0.6f);
 731             break;
 732
 733         case wxWEB_VIEW_ZOOM_SMALL:
 734             SetWebkitZoom(0.8f);
 735             break;
 736
 737         case wxWEB_VIEW_ZOOM_MEDIUM:
 738             SetWebkitZoom(1.0f);
 739             break;
 740
 741         case wxWEB_VIEW_ZOOM_LARGE:
 742             SetWebkitZoom(1.3);
 743             break;
 744
 745         case wxWEB_VIEW_ZOOM_LARGEST:
 746             SetWebkitZoom(1.6);
 747             break;
 748
 749         default:
 750             wxASSERT(false);
 751     }
 752 }
 753
 754 void wxWebViewWebKit::SetZoomType(wxWebViewZoomType type)
 755 {
 756     webkit_web_view_set_full_content_zoom(WEBKIT_WEB_VIEW(web_view),
 757                                           (type == wxWEB_VIEW_ZOOM_TYPE_LAYOUT ?
 758                                           TRUE : FALSE));
 759 }
 760
 761 wxWebViewZoomType wxWebViewWebKit::GetZoomType() const
 762 {
 763     gboolean fczoom = webkit_web_view_get_full_content_zoom(
 764             WEBKIT_WEB_VIEW(web_view));
 765
 766     if (fczoom) return wxWEB_VIEW_ZOOM_TYPE_LAYOUT;
 767     else        return wxWEB_VIEW_ZOOM_TYPE_TEXT;
 768 }
 769
 770 bool wxWebViewWebKit::CanSetZoomType(wxWebViewZoomType) const
 771 {
 772     // this port supports all zoom types
 773     return true;
 774 }
 775
 776 void wxWebViewWebKit::SetPage(const wxString& html, const wxString& baseUri)
 777 {
 778     webkit_web_view_load_string (WEBKIT_WEB_VIEW(web_view),
 779                                  html.mb_str(wxConvUTF8),
 780                                  "text/html",
 781                                  "UTF-8",
 782                                  baseUri.mb_str(wxConvUTF8));
 783 }
 784
 785 void wxWebViewWebKit::Print()
 786 {
 787     WebKitWebFrame* frame = webkit_web_view_get_main_frame(
 788             WEBKIT_WEB_VIEW(web_view));
 789     webkit_web_frame_print (frame);
 790
 791     // GtkPrintOperationResult  webkit_web_frame_print_full
 792     //      (WebKitWebFrame *frame,
 793     //       GtkPrintOperation *operation,
 794     //       GtkPrintOperationAction action,
 795     //       GError **error);
 796
 797 }
 798
 799
 800 bool wxWebViewWebKit::IsBusy() const
 801 {
 802     return m_busy;
 803
 804     // This code looks nice but returns true after a page was cancelled
 805     /*
 806     WebKitLoadStatus status = webkit_web_view_get_load_status
 807             (WEBKIT_WEB_VIEW(web_view));
 808
 809
 810 #if WEBKIT_CHECK_VERSION(1,1,16)
 811     // WEBKIT_LOAD_FAILED is new in webkit 1.1.16
 812     if (status == WEBKIT_LOAD_FAILED)
 813     {
 814         return false;
 815     }
 816 #endif
 817     if (status == WEBKIT_LOAD_FINISHED)
 818     {
 819         return false;
 820     }
 821
 822     return true;
 823      */
 824 }
 825
 826 void wxWebViewWebKit::SetEditable(bool enable)
 827 {
 828     webkit_web_view_set_editable(WEBKIT_WEB_VIEW(web_view), enable);
 829 }
 830
 831 bool wxWebViewWebKit::IsEditable() const
 832 {
 833     return webkit_web_view_get_editable(WEBKIT_WEB_VIEW(web_view));
 834 }
 835
 836 void wxWebViewWebKit::DeleteSelection()
 837 {
 838     webkit_web_view_delete_selection(WEBKIT_WEB_VIEW(web_view));
 839 }
 840
 841 bool wxWebViewWebKit::HasSelection() const
 842 {
 843     return webkit_web_view_has_selection(WEBKIT_WEB_VIEW(web_view));
 844 }
 845
 846 void wxWebViewWebKit::SelectAll()
 847 {
 848     webkit_web_view_select_all(WEBKIT_WEB_VIEW(web_view));
 849 }
 850
 851 wxString wxWebViewWebKit::GetSelectedText() const
 852 {
 853     WebKitDOMDocument* doc;
 854     WebKitDOMDOMWindow* win;
 855     WebKitDOMDOMSelection* sel;
 856     WebKitDOMRange* range;
 857
 858     doc = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(web_view));
 859     win = webkit_dom_document_get_default_view(WEBKIT_DOM_DOCUMENT(doc));
 860     sel = webkit_dom_dom_window_get_selection(WEBKIT_DOM_DOM_WINDOW(win));
 861     range = webkit_dom_dom_selection_get_range_at(WEBKIT_DOM_DOM_SELECTION(sel),
 862                                                   0, NULL);
 863     return wxString(webkit_dom_range_get_text(WEBKIT_DOM_RANGE(range)),
 864                     wxConvUTF8);
 865 }
 866
 867 wxString wxWebViewWebKit::GetSelectedSource() const
 868 {
 869     WebKitDOMDocument* doc;
 870     WebKitDOMDOMWindow* win;
 871     WebKitDOMDOMSelection* sel;
 872     WebKitDOMRange* range;
 873     WebKitDOMElement* div;
 874     WebKitDOMDocumentFragment* clone;
 875     WebKitDOMHTMLElement* html;
 876
 877     doc = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(web_view));
 878     win = webkit_dom_document_get_default_view(WEBKIT_DOM_DOCUMENT(doc));
 879     sel = webkit_dom_dom_window_get_selection(WEBKIT_DOM_DOM_WINDOW(win));
 880     range = webkit_dom_dom_selection_get_range_at(WEBKIT_DOM_DOM_SELECTION(sel),
 881                                                   0, NULL);
 882     div = webkit_dom_document_create_element(WEBKIT_DOM_DOCUMENT(doc), "div", NULL);
 883
 884     clone = webkit_dom_range_clone_contents(WEBKIT_DOM_RANGE(range), NULL);
 885     webkit_dom_node_append_child(&div->parent_instance, &clone->parent_instance, NULL);
 886     html = (WebKitDOMHTMLElement*)div;
 887
 888     return wxString(webkit_dom_html_element_get_inner_html(WEBKIT_DOM_HTML_ELEMENT(html)),
 889                     wxConvUTF8);
 890 }
 891
 892 void wxWebViewWebKit::ClearSelection()
 893 {
 894     WebKitDOMDocument* doc;
 895     WebKitDOMDOMWindow* win;
 896     WebKitDOMDOMSelection* sel;
 897
 898     doc = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(web_view));
 899     win = webkit_dom_document_get_default_view(WEBKIT_DOM_DOCUMENT(doc));
 900     sel = webkit_dom_dom_window_get_selection(WEBKIT_DOM_DOM_WINDOW(win));
 901     webkit_dom_dom_selection_remove_all_ranges(WEBKIT_DOM_DOM_SELECTION(sel));
 902
 903 }
 904
 905 wxString wxWebViewWebKit::GetPageText() const
 906 {
 907     WebKitDOMDocument* doc;
 908     WebKitDOMHTMLElement* body;
 909
 910     doc = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(web_view));
 911     body = webkit_dom_document_get_body(WEBKIT_DOM_DOCUMENT(doc));
 912     return wxString(webkit_dom_html_element_get_inner_text(WEBKIT_DOM_HTML_ELEMENT(body)),
 913                     wxConvUTF8);
 914 }
 915
 916 void wxWebViewWebKit::RunScript(const wxString& javascript)
 917 {
 918     webkit_web_view_execute_script(WEBKIT_WEB_VIEW(web_view),
 919                                    javascript.mb_str(wxConvUTF8));
 920 }
 921
 922 void wxWebViewWebKit::RegisterHandler(wxSharedPtr<wxWebViewHandler> handler)
 923 {
 924     m_handlerList.push_back(handler);
 925 }
 926
 927 // static
 928 wxVisualAttributes
 929 wxWebViewWebKit::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 930 {
 931      return GetDefaultAttributesFromGTKWidget(webkit_web_view_new);
 932 }
 933
 934
 935 #endif // wxUSE_WEBVIEW && wxUSE_WEBVIEW_WEBKIT