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