src/html/htmlctrl/webkit/webkit.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        webkit.mm
   3 // Purpose:     wxWebKitCtrl - embeddable web kit control
   4 // Author:      Jethro Grassie / Kevin Ollivier
   5 // Modified by:
   6 // Created:     2004-4-16
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Jethro Grassie / Kevin Ollivier
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13     #pragma implementation "webkit.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18 #include "wx/splitter.h"
  19
  20 #ifndef WX_PRECOMP
  21     #include "wx/wx.h"
  22 #endif
  23
  24 #if wxUSE_WEBKIT
  25
  26 #ifdef __WXCOCOA__
  27 #include "wx/cocoa/autorelease.h"
  28 #else
  29 #include "wx/mac/uma.h"
  30 #include <Carbon/Carbon.h>
  31 #include <WebKit/WebKit.h>
  32 #include <WebKit/HIWebView.h>
  33 #include <WebKit/CarbonUtils.h>
  34 #endif
  35
  36 #include "wx/html/webkit.h"
  37
  38 #define DEBUG_WEBKIT_SIZING 0
  39
  40 // ----------------------------------------------------------------------------
  41 // macros
  42 // ----------------------------------------------------------------------------
  43
  44 IMPLEMENT_DYNAMIC_CLASS(wxWebKitCtrl, wxControl)
  45
  46 BEGIN_EVENT_TABLE(wxWebKitCtrl, wxControl)
  47     EVT_SIZE(wxWebKitCtrl::OnSize)
  48 END_EVENT_TABLE()
  49
  50 // ----------------------------------------------------------------------------
  51 // Carbon Events handlers
  52 // ----------------------------------------------------------------------------
  53
  54 // prototype for function in src/mac/carbon/toplevel.cpp
  55 void SetupMouseEvent( wxMouseEvent &wxevent , wxMacCarbonEvent &cEvent );
  56
  57 static const EventTypeSpec eventList[] =
  58 {
  59     //{ kEventClassControl, kEventControlTrack } ,
  60     { kEventClassMouse, kEventMouseUp },
  61     { kEventClassMouse, kEventMouseDown },
  62     { kEventClassMouse, kEventMouseMoved },
  63     { kEventClassMouse, kEventMouseDragged },
  64 #if DEBUG_WEBKIT_SIZING == 1
  65     { kEventClassControl, kEventControlBoundsChanged } ,
  66 #endif
  67 };
  68
  69 static pascal OSStatus wxWebKitCtrlEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
  70 {
  71     OSStatus result = eventNotHandledErr ;
  72
  73     wxMacCarbonEvent cEvent( event ) ;
  74
  75     ControlRef controlRef ;
  76     wxWebKitCtrl* thisWindow = (wxWebKitCtrl*) data ;
  77     wxTopLevelWindowMac* tlw = NULL;
  78     if (thisWindow)
  79         tlw = thisWindow->MacGetTopLevelWindow();
  80
  81     cEvent.GetParameter( kEventParamDirectObject , &controlRef ) ;
  82
  83     wxWindow* currentMouseWindow = thisWindow ;
  84
  85     if ( wxApp::s_captureWindow )
  86         currentMouseWindow = wxApp::s_captureWindow;
  87
  88     switch ( GetEventKind( event ) )
  89     {
  90         case kEventMouseDragged :
  91         case kEventMouseMoved :
  92             {
  93                 wxMouseEvent wxevent(wxEVT_LEFT_DOWN);
  94                 SetupMouseEvent( wxevent , cEvent ) ;
  95
  96                 currentMouseWindow->ScreenToClient( &wxevent.m_x , &wxevent.m_y ) ;
  97                 wxevent.SetEventObject( currentMouseWindow ) ;
  98                 wxevent.SetId( currentMouseWindow->GetId() ) ;
  99
 100                 if ( currentMouseWindow->GetEventHandler()->ProcessEvent(wxevent) )
 101                 {
 102                     result = noErr;
 103                 }
 104
 105                 break; // this should enable WebKit to fire mouse dragged and mouse up events...
 106             }
 107
 108         case kEventControlBoundsChanged:
 109             {
 110                 // this is just here for debugging, so we can note any differences between
 111                 // native event sizes and the sizes the wxWindow receives.
 112                 Rect origBounds = cEvent.GetParameter<Rect>(kEventParamOriginalBounds, typeQDRectangle) ;
 113                 Rect prevBounds = cEvent.GetParameter<Rect>(kEventParamPreviousBounds, typeQDRectangle) ;
 114                 Rect curBounds = cEvent.GetParameter<Rect>(kEventParamCurrentBounds, typeQDRectangle) ;
 115
 116                 fprintf(stderr, "Orig bounds x=%d, y=%d, height=%d, width=%d\n", origBounds.left, origBounds.top, origBounds.bottom -origBounds.top, origBounds.right - origBounds.left);
 117                 fprintf(stderr, "Prev bounds x=%d, y=%d, height=%d, width=%d\n", prevBounds.left, prevBounds.top, prevBounds.bottom -prevBounds.top, prevBounds.right - prevBounds.left);
 118                 fprintf(stderr, "Cur bounds x=%d, y=%d, height=%d, width=%d\n", curBounds.left, curBounds.top, curBounds.bottom -curBounds.top, curBounds.right - curBounds.left);
 119             }
 120         default :
 121             break ;
 122     }
 123
 124     result = CallNextEventHandler(handler, event);
 125     return result ;
 126 }
 127
 128 DEFINE_ONE_SHOT_HANDLER_GETTER( wxWebKitCtrlEventHandler )
 129
 130
 131 // ----------------------------------------------------------------------------
 132 // wxWebKit Events
 133 // ----------------------------------------------------------------------------
 134
 135 IMPLEMENT_DYNAMIC_CLASS( wxWebKitStateChangedEvent, wxCommandEvent )
 136
 137 DEFINE_EVENT_TYPE( wxEVT_WEBKIT_STATE_CHANGED )
 138
 139 wxWebKitStateChangedEvent::wxWebKitStateChangedEvent( wxWindow* win )
 140 {
 141     SetEventType( wxEVT_WEBKIT_STATE_CHANGED);
 142     SetEventObject( win );
 143     SetId(win->GetId());
 144 }
 145
 146 IMPLEMENT_DYNAMIC_CLASS( wxWebKitBeforeLoadEvent, wxCommandEvent )
 147
 148 DEFINE_EVENT_TYPE( wxEVT_WEBKIT_BEFORE_LOAD )
 149
 150 wxWebKitBeforeLoadEvent::wxWebKitBeforeLoadEvent( wxWindow* win )
 151 {
 152     m_cancelled = false;
 153     SetEventType( wxEVT_WEBKIT_BEFORE_LOAD);
 154     SetEventObject( win );
 155     SetId(win->GetId());
 156 }
 157
 158 //---------------------------------------------------------
 159 // helper functions for NSString<->wxString conversion
 160 //---------------------------------------------------------
 161
 162 inline wxString wxStringWithNSString(NSString *nsstring)
 163 {
 164 #if wxUSE_UNICODE
 165     return wxString([nsstring UTF8String], wxConvUTF8);
 166 #else
 167     return wxString([nsstring lossyCString]);
 168 #endif // wxUSE_UNICODE
 169 }
 170
 171 inline NSString* wxNSStringWithWxString(const wxString &wxstring)
 172 {
 173 #if wxUSE_UNICODE
 174     return [NSString stringWithUTF8String: wxstring.mb_str(wxConvUTF8)];
 175 #else
 176     return [NSString stringWithCString: wxstring.c_str() length:wxstring.Len()];
 177 #endif // wxUSE_UNICODE
 178 }
 179
 180 inline int wxNavTypeFromWebNavType(int type){
 181     if (type == WebNavigationTypeLinkClicked)
 182         return wxWEBKIT_NAV_LINK_CLICKED;
 183
 184     if (type == WebNavigationTypeFormSubmitted)
 185         return wxWEBKIT_NAV_FORM_SUBMITTED;
 186
 187     if (type == WebNavigationTypeBackForward)
 188         return wxWEBKIT_NAV_BACK_NEXT;
 189
 190     if (type == WebNavigationTypeReload)
 191         return wxWEBKIT_NAV_RELOAD;
 192
 193     if (type == WebNavigationTypeFormResubmitted)
 194         return wxWEBKIT_NAV_FORM_RESUBMITTED;
 195
 196     return wxWEBKIT_NAV_OTHER;
 197 }
 198
 199 @interface MyFrameLoadMonitor : NSObject
 200 {
 201     wxWebKitCtrl* webKitWindow;
 202 }
 203
 204 - initWithWxWindow: (wxWebKitCtrl*)inWindow;
 205
 206 @end
 207
 208 @interface MyPolicyDelegate : NSObject
 209 {
 210     wxWebKitCtrl* webKitWindow;
 211 }
 212
 213 - initWithWxWindow: (wxWebKitCtrl*)inWindow;
 214
 215 @end
 216
 217 // ----------------------------------------------------------------------------
 218 // creation/destruction
 219 // ----------------------------------------------------------------------------
 220
 221 bool wxWebKitCtrl::Create(wxWindow *parent,
 222                                  wxWindowID winID,
 223                                  const wxString& strURL,
 224                                  const wxPoint& pos,
 225                                  const wxSize& size, long style,
 226                                  const wxValidator& validator,
 227                                  const wxString& name)
 228 {
 229
 230     m_currentURL = strURL;
 231     //m_pageTitle = _("Untitled Page");
 232
 233  //still needed for wxCocoa??
 234 /*
 235     int width, height;
 236     wxSize sizeInstance;
 237     if (size.x == wxDefaultCoord || size.y == wxDefaultCoord)
 238     {
 239         m_parent->GetClientSize(&width, &height);
 240         sizeInstance.x = width;
 241         sizeInstance.y = height;
 242     }
 243     else
 244     {
 245         sizeInstance.x = size.x;
 246         sizeInstance.y = size.y;
 247     }
 248 */
 249     // now create and attach WebKit view...
 250 #ifdef __WXCOCOA__
 251     wxControl::Create(parent, m_windowID, pos, sizeInstance, style , validator , name);
 252     SetSize(pos.x, pos.y, sizeInstance.x, sizeInstance.y);
 253
 254     wxTopLevelWindowCocoa *topWin = wxDynamicCast(this, wxTopLevelWindowCocoa);
 255     NSWindow* nsWin = topWin->GetNSWindow();
 256     NSRect rect;
 257     rect.origin.x = pos.x;
 258     rect.origin.y = pos.y;
 259     rect.size.width = sizeInstance.x;
 260     rect.size.height = sizeInstance.y;
 261     m_webView = (WebView*)[[WebView alloc] initWithFrame:rect frameName:@"webkitFrame" groupName:@"webkitGroup"];
 262     SetNSView(m_webView);
 263     [m_cocoaNSView release];
 264
 265     if(m_parent) m_parent->CocoaAddChild(this);
 266     SetInitialFrameRect(pos,sizeInstance);
 267 #else
 268     m_macIsUserPane = false;
 269     wxControl::Create(parent, winID, pos, size, style , validator , name);
 270     m_peer = new wxMacControl(this);
 271     WebInitForCarbon();
 272     HIWebViewCreate( m_peer->GetControlRefAddr() );
 273
 274     m_webView = (WebView*) HIWebViewGetWebView( m_peer->GetControlRef() );
 275
 276     MacPostControlCreate(pos, size);
 277     HIViewSetVisible( m_peer->GetControlRef(), true );
 278     [m_webView setHidden:false];
 279 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3
 280     if ( UMAGetSystemVersion() >= 0x1030 )
 281         HIViewChangeFeatures( m_peer->GetControlRef() , kHIViewIsOpaque , 0 ) ;
 282 #endif
 283     InstallControlEventHandler( m_peer->GetControlRef() , GetwxWebKitCtrlEventHandlerUPP(),
 284         GetEventTypeCount(eventList), eventList, this,
 285         (EventHandlerRef *)&m_webKitCtrlEventHandler);
 286
 287 #endif
 288
 289     // Register event listener interfaces
 290     MyFrameLoadMonitor* myFrameLoadMonitor = [[MyFrameLoadMonitor alloc] initWithWxWindow: this];
 291     [m_webView setFrameLoadDelegate:myFrameLoadMonitor];
 292
 293     // this is used to veto page loads, etc.
 294     MyPolicyDelegate* myPolicyDelegate = [[MyPolicyDelegate alloc] initWithWxWindow: this];
 295     [m_webView setPolicyDelegate:myPolicyDelegate];
 296
 297     LoadURL(m_currentURL);
 298     return true;
 299 }
 300
 301 wxWebKitCtrl::~wxWebKitCtrl()
 302 {
 303
 304 }
 305
 306 // ----------------------------------------------------------------------------
 307 // public methods
 308 // ----------------------------------------------------------------------------
 309
 310 void wxWebKitCtrl::LoadURL(const wxString &url)
 311 {
 312     if( !m_webView )
 313         return;
 314
 315     [[m_webView mainFrame] loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:wxNSStringWithWxString(url)]]];
 316
 317     m_currentURL = url;
 318 }
 319
 320 bool wxWebKitCtrl::CanGoBack(){
 321     if ( !m_webView )
 322         return false;
 323
 324     return [m_webView canGoBack];
 325 }
 326
 327 bool wxWebKitCtrl::CanGoForward(){
 328     if ( !m_webView )
 329         return false;
 330
 331     return [m_webView canGoForward];
 332 }
 333
 334 bool wxWebKitCtrl::GoBack(){
 335     if ( !m_webView )
 336         return false;
 337
 338     bool result = [(WebView*)m_webView goBack];
 339     return result;
 340 }
 341
 342 bool wxWebKitCtrl::GoForward(){
 343     if ( !m_webView )
 344         return false;
 345
 346     bool result = [(WebView*)m_webView goForward];
 347     return result;
 348 }
 349
 350 void wxWebKitCtrl::Reload(){
 351     if ( !m_webView )
 352         return;
 353
 354     [[m_webView mainFrame] reload];
 355 }
 356
 357 void wxWebKitCtrl::Stop(){
 358     if ( !m_webView )
 359         return;
 360
 361     [[m_webView mainFrame] stopLoading];
 362 }
 363
 364 bool wxWebKitCtrl::CanGetPageSource(){
 365     if ( !m_webView )
 366         return false;
 367
 368     WebDataSource* dataSource = [[m_webView mainFrame] dataSource];
 369     return ( [[dataSource representation] canProvideDocumentSource] );
 370 }
 371
 372 wxString wxWebKitCtrl::GetPageSource(){
 373
 374     if (CanGetPageSource()){
 375         WebDataSource* dataSource = [[m_webView mainFrame] dataSource];
 376         return wxStringWithNSString( [[dataSource representation] documentSource] );
 377     }
 378
 379     return wxEmptyString;
 380 }
 381
 382 wxString wxWebKitCtrl::GetSelection(){
 383     if ( !m_webView )
 384         return wxEmptyString;
 385
 386     NSString* selectedText = [[m_webView selectedDOMRange] toString];
 387     return wxStringWithNSString( selectedText );
 388 }
 389
 390 bool wxWebKitCtrl::CanIncreaseTextSize(){
 391     if ( !m_webView )
 392         return false;
 393
 394     if ([m_webView canMakeTextLarger])
 395         return true;
 396     else
 397         return false;
 398 }
 399
 400 void wxWebKitCtrl::IncreaseTextSize(){
 401     if ( !m_webView )
 402         return;
 403
 404     if (CanIncreaseTextSize())
 405         [m_webView makeTextLarger:(WebView*)m_webView];
 406 }
 407
 408 bool wxWebKitCtrl::CanDecreaseTextSize(){
 409     if ( !m_webView )
 410         return false;
 411
 412     if ([m_webView canMakeTextSmaller])
 413         return true;
 414     else
 415         return false;
 416 }
 417
 418 void wxWebKitCtrl::DecreaseTextSize(){
 419     if ( !m_webView )
 420         return;
 421
 422     if (CanDecreaseTextSize())
 423         [m_webView makeTextSmaller:(WebView*)m_webView];
 424 }
 425
 426 void wxWebKitCtrl::SetPageSource(const wxString& source, const wxString& baseUrl){
 427     if ( !m_webView )
 428         return;
 429
 430     [[m_webView mainFrame] loadHTMLString:(NSString*)wxNSStringWithWxString( source ) baseURL:[NSURL URLWithString:wxNSStringWithWxString( baseUrl )]];
 431
 432 }
 433
 434 void wxWebKitCtrl::Print(bool showPrompt){
 435     if ( !m_webView )
 436         return;
 437
 438     id view = [[[m_webView mainFrame] frameView] documentView];
 439     NSPrintOperation *op = [NSPrintOperation printOperationWithView:view printInfo: [NSPrintInfo sharedPrintInfo]];
 440     if (showPrompt){
 441         [op setShowsPrintPanel: showPrompt];
 442         // in my tests, the progress bar always freezes and it stops the whole print operation.
 443         // do not turn this to true unless there is a workaround for the bug.
 444         [op setShowsProgressPanel: false];
 445     }
 446     // Print it.
 447     [op runOperation];
 448 }
 449
 450 void wxWebKitCtrl::MakeEditable(bool enable){
 451     if ( !m_webView )
 452         return;
 453
 454     [m_webView setEditable:enable ];
 455 }
 456
 457 bool wxWebKitCtrl::IsEditable(){
 458     if ( !m_webView )
 459         return false;
 460
 461     return [m_webView isEditable];
 462 }
 463
 464 int wxWebKitCtrl::GetScrollPos(){
 465     id result = [[m_webView windowScriptObject] evaluateWebScript:@"document.body.scrollTop"];
 466     return [result intValue];
 467 }
 468
 469 void wxWebKitCtrl::SetScrollPos(int pos){
 470     if ( !m_webView )
 471         return;
 472
 473     wxString javascript;
 474     javascript.Printf(wxT("document.body.scrollTop = %d;"), pos);
 475     [[m_webView windowScriptObject] evaluateWebScript:(NSString*)wxNSStringWithWxString( javascript )];
 476 }
 477
 478 wxString wxWebKitCtrl::RunScript(const wxString& javascript){
 479     if ( !m_webView )
 480         return wxEmptyString;
 481
 482     id result = [[m_webView windowScriptObject] evaluateWebScript:(NSString*)wxNSStringWithWxString( javascript )];
 483
 484     NSString* resultAsString;
 485     wxString resultAsWxString = wxEmptyString;
 486     NSString* className = NSStringFromClass([result class]);
 487     if ([className isEqualToString:@"NSCFNumber"])
 488         resultAsString = [NSString stringWithFormat:@"%@", result];
 489     else if ([className isEqualToString:@"NSCFString"])
 490         resultAsString = result;
 491     else if ([className isEqualToString:@"NSCFBoolean"]){
 492         if ([result boolValue])
 493             resultAsString = @"true";
 494         else
 495             resultAsString = @"false";
 496     }
 497     else if ([className isEqualToString:@"WebScriptObject"])
 498         resultAsString = [result stringRepresentation];
 499     else
 500         fprintf(stderr, "wxWebKitCtrl::RunScript - Unexpected return type: %s!\n", [className UTF8String]);
 501
 502     resultAsWxString = wxStringWithNSString( resultAsString );
 503     return resultAsWxString;
 504 }
 505
 506 void wxWebKitCtrl::OnSize(wxSizeEvent &event){
 507     // This is a nasty hack because WebKit seems to lose its position when it is embedded
 508     // in a control that is not itself the content view for a TLW.
 509     // I put it in OnSize because these calcs are not perfect, and in fact are basically
 510     // guesses based on reverse engineering, so it's best to give people the option of
 511     // overriding OnSize with their own calcs if need be.
 512     // I also left some test debugging print statements as a convenience if a(nother)
 513     // problem crops up.
 514
 515     wxWindow* tlw = MacGetTopLevelWindow();
 516
 517     NSRect frame = [m_webView frame];
 518     NSRect bounds = [m_webView bounds];
 519
 520 #if DEBUG_WEBKIT_SIZING
 521     fprintf(stderr,"Carbon window x=%d, y=%d, width=%d, height=%d\n", GetPosition().x, GetPosition().y, GetSize().x, GetSize().y);
 522     fprintf(stderr, "Cocoa window frame x=%G, y=%G, width=%G, height=%G\n", frame.origin.x, frame.origin.y, frame.size.width, frame.size.height);
 523     fprintf(stderr, "Cocoa window bounds x=%G, y=%G, width=%G, height=%G\n", bounds.origin.x, bounds.origin.y, bounds.size.width, bounds.size.height);
 524 #endif
 525
 526     // This must be the case that Apple tested with, because well, in this one case
 527     // we don't need to do anything! It just works. ;)
 528     if (GetParent() == tlw){
 529         return;
 530     }
 531
 532     int x = GetPosition().x;
 533     int y = GetPosition().y;
 534
 535     HIRect rect;
 536     rect.origin.x = x;
 537     rect.origin.y = y;
 538
 539 #if DEBUG_WEBKIT_SIZING
 540     printf("Before conversion, origin is: x = %d, y = %d\n", x, y);
 541 #endif
 542
 543     // NB: In most cases, when calling HIViewConvertRect, what people want is to use GetRootControl(),
 544     // and this tripped me up at first. But in fact, what we want is the root view, because we need to
 545     // make the y origin relative to the very top of the window, not its contents, since we later flip
 546     // the y coordinate for Cocoa.
 547     HIViewConvertRect (&rect, HIViewGetSuperview( m_peer->GetControlRef() ),
 548                                 HIViewGetRoot( (WindowRef) MacGetTopLevelWindowRef() ) );
 549
 550     x = (int)rect.origin.x;
 551     y = (int)rect.origin.y;
 552
 553 #if DEBUG_WEBKIT_SIZING
 554     printf("Moving Cocoa frame origin to: x = %d, y = %d\n", x, y);
 555 #endif
 556
 557     if (tlw){
 558         //flip the y coordinate to convert to Cocoa coordinates
 559         y = tlw->GetSize().y - ((GetSize().y) + y);
 560     }
 561
 562 #if DEBUG_WEBKIT_SIZING
 563     printf("y = %d after flipping value\n", y);
 564 #endif
 565
 566     frame.origin.x = x;
 567     frame.origin.y = y;
 568     [m_webView setFrame:frame];
 569
 570     if (IsShown())
 571         [(WebView*)m_webView display];
 572     event.Skip();
 573 }
 574
 575 void wxWebKitCtrl::MacVisibilityChanged(){
 576     bool isHidden = !IsControlVisible( m_peer->GetControlRef());
 577     if (!isHidden)
 578         [(WebView*)m_webView display];
 579
 580     [m_webView setHidden:isHidden];
 581 }
 582
 583 //------------------------------------------------------------
 584 // Listener interfaces
 585 //------------------------------------------------------------
 586
 587 @implementation MyFrameLoadMonitor
 588
 589 - initWithWxWindow: (wxWebKitCtrl*)inWindow
 590 {
 591     [super init];
 592     webKitWindow = inWindow;    // non retained
 593     return self;
 594 }
 595
 596 - (void)webView:(WebView *)sender didStartProvisionalLoadForFrame:(WebFrame *)frame
 597 {
 598     if (frame == [sender mainFrame]){
 599         NSString *url = [[[[frame provisionalDataSource] request] URL] absoluteString];
 600         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 601         thisEvent.SetState(wxWEBKIT_STATE_NEGOTIATING);
 602         thisEvent.SetURL( wxStringWithNSString( url ) );
 603         webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 604     }
 605 }
 606
 607 - (void)webView:(WebView *)sender didCommitLoadForFrame:(WebFrame *)frame
 608 {
 609     if (frame == [sender mainFrame]){
 610         NSString *url = [[[[frame dataSource] request] URL] absoluteString];
 611         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 612         thisEvent.SetState(wxWEBKIT_STATE_TRANSFERRING);
 613         thisEvent.SetURL( wxStringWithNSString( url ) );
 614         webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 615     }
 616 }
 617
 618 - (void)webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)frame
 619 {
 620     if (frame == [sender mainFrame]){
 621         NSString *url = [[[[frame dataSource] request] URL] absoluteString];
 622         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 623         thisEvent.SetState(wxWEBKIT_STATE_STOP);
 624         thisEvent.SetURL( wxStringWithNSString( url ) );
 625         webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 626     }
 627 }
 628
 629 - (void)webView:(WebView *)sender didFailLoadWithError:(NSError*) error forFrame:(WebFrame *)frame
 630 {
 631     if (frame == [sender mainFrame]){
 632         NSString *url = [[[[frame dataSource] request] URL] absoluteString];
 633         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 634         thisEvent.SetState(wxWEBKIT_STATE_FAILED);
 635         thisEvent.SetURL( wxStringWithNSString( url ) );
 636         webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 637     }
 638 }
 639
 640 - (void)webView:(WebView *)sender didFailProvisionalLoadWithError:(NSError*) error forFrame:(WebFrame *)frame
 641 {
 642     if (frame == [sender mainFrame]){
 643         NSString *url = [[[[frame provisionalDataSource] request] URL] absoluteString];
 644         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 645         thisEvent.SetState(wxWEBKIT_STATE_FAILED);
 646         thisEvent.SetURL( wxStringWithNSString( url ) );
 647         webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 648     }
 649 }
 650
 651 - (void)webView:(WebView *)sender didReceiveTitle:(NSString *)title forFrame:(WebFrame *)frame
 652 {
 653     if (frame == [sender mainFrame]){
 654         webKitWindow->SetPageTitle(wxStringWithNSString( title ));
 655     }
 656 }
 657 @end
 658
 659 @implementation MyPolicyDelegate
 660
 661 - initWithWxWindow: (wxWebKitCtrl*)inWindow
 662 {
 663     [super init];
 664     webKitWindow = inWindow;    // non retained
 665     return self;
 666 }
 667
 668 - (void)webView:(WebView *)sender decidePolicyForNavigationAction:(NSDictionary *)actionInformation request:(NSURLRequest *)request frame:(WebFrame *)frame decisionListener:(id<WebPolicyDecisionListener>)listener
 669 {
 670     wxWebKitBeforeLoadEvent thisEvent(webKitWindow);
 671
 672     // Get the navigation type.
 673     NSNumber *n = [actionInformation objectForKey:WebActionNavigationTypeKey];
 674     int actionType = [n intValue];
 675     thisEvent.SetNavigationType( wxNavTypeFromWebNavType(actionType) );
 676
 677     NSString *url = [[request URL] absoluteString];
 678     thisEvent.SetURL( wxStringWithNSString( url ) );
 679
 680     webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
 681
 682         if (thisEvent.IsCancelled())
 683         [listener ignore];
 684     else
 685         [listener use];
 686 }
 687
 688 @end
 689
 690 #endif //wxUSE_WEBKIT