+/////////////////////////////////////////////////////////////////////////////
+// Name:        src/osx/webview_webkit.mm
+// Purpose:     wxOSXWebKitCtrl - embeddable web kit control,
+//                             OS X implementation of web view component
+// Author:      Jethro Grassie / Kevin Ollivier / Marianne Gagnon
+// Modified by:
+// Created:     2004-4-16
+// RCS-ID:      $Id$
+// Copyright:   (c) Jethro Grassie / Kevin Ollivier / Marianne Gagnon
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// http://developer.apple.com/mac/library/documentation/Cocoa/Reference/WebKit/Classes/WebView_Class/Reference/Reference.html
+
+#include "wx/osx/webview_webkit.h"
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/wx.h"
+#endif
+
+#if wxHAVE_WEB_BACKEND_OSX_WEBKIT
+
+#ifdef __WXCOCOA__
+#include "wx/cocoa/autorelease.h"
+#else
+#include "wx/osx/private.h"
+
+#include <WebKit/WebKit.h>
+#include <WebKit/HIWebView.h>
+#include <WebKit/CarbonUtils.h>
+#endif
+
+#include <Foundation/NSURLError.h>
+
+// FIXME: find cleaner way to find the wxWidgets ID of a webview than this hack
+#include <map>
+std::map<WebView*, wxOSXWebKitCtrl*> wx_webviewctrls;
+
+#define DEBUG_WEBKIT_SIZING 0
+
+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxOSXWebKitCtrl, wxControl)
+
+BEGIN_EVENT_TABLE(wxOSXWebKitCtrl, wxControl)
+#if defined(__WXMAC__) && wxOSX_USE_CARBON
+    EVT_SIZE(wxOSXWebKitCtrl::OnSize)
+#endif
+END_EVENT_TABLE()
+
+#if defined(__WXOSX__) && wxOSX_USE_CARBON
+
+// ----------------------------------------------------------------------------
+// Carbon Events handlers
+// ----------------------------------------------------------------------------
+
+// prototype for function in src/osx/carbon/nonownedwnd.cpp
+void SetupMouseEvent( wxMouseEvent &wxevent , wxMacCarbonEvent &cEvent );
+
+static const EventTypeSpec eventList[] =
+{
+    //{ kEventClassControl, kEventControlTrack } ,
+    { kEventClassMouse, kEventMouseUp },
+    { kEventClassMouse, kEventMouseDown },
+    { kEventClassMouse, kEventMouseMoved },
+    { kEventClassMouse, kEventMouseDragged },
+
+    { kEventClassKeyboard, kEventRawKeyDown } ,
+    { kEventClassKeyboard, kEventRawKeyRepeat } ,
+    { kEventClassKeyboard, kEventRawKeyUp } ,
+    { kEventClassKeyboard, kEventRawKeyModifiersChanged } ,
+
+    { kEventClassTextInput, kEventTextInputUnicodeForKeyEvent } ,
+    { kEventClassTextInput, kEventTextInputUpdateActiveInputArea } ,
+
+#if DEBUG_WEBKIT_SIZING == 1
+    { kEventClassControl, kEventControlBoundsChanged } ,
+#endif
+};
+
+// mix this in from window.cpp
+pascal OSStatus wxMacUnicodeTextEventHandler(EventHandlerCallRef handler,
+                                             EventRef event, void *data) ;
+
+// NOTE: This is mostly taken from KeyboardEventHandler in toplevel.cpp, but
+// that expects the data pointer is a top-level window, so I needed to change
+// that in this case. However, once 2.8 is out, we should factor out the common
+// logic among the two functions and merge them.
+static pascal OSStatus wxWebKitKeyEventHandler(EventHandlerCallRef handler,
+                                               EventRef event, void *data)
+{
+    OSStatus result = eventNotHandledErr ;
+    wxMacCarbonEvent cEvent( event ) ;
+
+    wxOSXWebKitCtrl* thisWindow = (wxOSXWebKitCtrl*) data ;
+    wxWindow* focus = thisWindow ;
+
+    unsigned char charCode ;
+    wxChar uniChar[2] ;
+    uniChar[0] = 0;
+    uniChar[1] = 0;
+
+    UInt32 keyCode ;
+    UInt32 modifiers ;
+    Point point ;
+    UInt32 when = EventTimeToTicks( GetEventTime( event ) ) ;
+
+#if wxUSE_UNICODE
+    ByteCount dataSize = 0 ;
+    if ( GetEventParameter(event, kEventParamKeyUnicodes, typeUnicodeText,
+                           NULL, 0 , &dataSize, NULL ) == noErr)
+    {
+        UniChar buf[2] ;
+        int numChars = dataSize / sizeof( UniChar) + 1;
+
+        UniChar* charBuf = buf ;
+
+        if ( numChars * 2 > 4 )
+            charBuf = new UniChar[ numChars ] ;
+        GetEventParameter(event, kEventParamKeyUnicodes, typeUnicodeText, NULL,
+                          dataSize , NULL , charBuf) ;
+        charBuf[ numChars - 1 ] = 0;
+
+#if SIZEOF_WCHAR_T == 2
+        uniChar = charBuf[0] ;
+#else
+        wxMBConvUTF16 converter ;
+        converter.MB2WC( uniChar , (const char*)charBuf , 2 ) ;
+#endif
+
+        if ( numChars * 2 > 4 )
+            delete[] charBuf ;
+    }
+#endif
+
+    GetEventParameter(event, kEventParamKeyMacCharCodes, typeChar, NULL,
+                      sizeof(char), NULL, &charCode );
+    GetEventParameter(event, kEventParamKeyCode, typeUInt32, NULL,
+                      sizeof(UInt32), NULL, &keyCode );
+    GetEventParameter(event, kEventParamKeyModifiers, typeUInt32, NULL,
+                      sizeof(UInt32), NULL, &modifiers );
+    GetEventParameter(event, kEventParamMouseLocation, typeQDPoint, NULL,
+                      sizeof(Point), NULL, &point );
+
+    UInt32 message = (keyCode << 8) + charCode;
+    switch ( GetEventKind( event ) )
+    {
+        case kEventRawKeyRepeat :
+        case kEventRawKeyDown :
+        {
+            WXEVENTREF formerEvent = wxTheApp->MacGetCurrentEvent() ;
+            WXEVENTHANDLERCALLREF formerHandler =
+                wxTheApp->MacGetCurrentEventHandlerCallRef() ;
+
+            wxTheApp->MacSetCurrentEvent( event , handler ) ;
+            if ( /* focus && */ wxTheApp->MacSendKeyDownEvent(
+                focus, message, modifiers, when, point.h, point.v, uniChar[0]))
+            {
+                result = noErr ;
+            }
+            wxTheApp->MacSetCurrentEvent( formerEvent , formerHandler ) ;
+        }
+        break ;
+
+        case kEventRawKeyUp :
+            if ( /* focus && */ wxTheApp->MacSendKeyUpEvent(
+                focus , message , modifiers , when , point.h , point.v , uniChar[0] ) )
+            {
+                result = noErr ;
+            }
+            break ;
+
+        case kEventRawKeyModifiersChanged :
+            {
+                wxKeyEvent event(wxEVT_KEY_DOWN);
+
+                event.m_shiftDown = modifiers & shiftKey;
+                event.m_controlDown = modifiers & controlKey;
+                event.m_altDown = modifiers & optionKey;
+                event.m_metaDown = modifiers & cmdKey;
+                event.m_x = point.h;
+                event.m_y = point.v;
+
+#if wxUSE_UNICODE
+                event.m_uniChar = uniChar[0] ;
+#endif
+
+                event.SetTimestamp(when);
+                event.SetEventObject(focus);
+
+                if ( /* focus && */ (modifiers ^ wxApp::s_lastModifiers ) & controlKey )
+                {
+                    event.m_keyCode = WXK_CONTROL ;
+                    event.SetEventType( ( modifiers & controlKey ) ? wxEVT_KEY_DOWN : wxEVT_KEY_UP ) ;
+                    focus->GetEventHandler()->ProcessEvent( event ) ;
+                }
+                if ( /* focus && */ (modifiers ^ wxApp::s_lastModifiers ) & shiftKey )
+                {
+                    event.m_keyCode = WXK_SHIFT ;
+                    event.SetEventType( ( modifiers & shiftKey ) ? wxEVT_KEY_DOWN : wxEVT_KEY_UP ) ;
+                    focus->GetEventHandler()->ProcessEvent( event ) ;
+                }
+                if ( /* focus && */ (modifiers ^ wxApp::s_lastModifiers ) & optionKey )
+                {
+                    event.m_keyCode = WXK_ALT ;
+                    event.SetEventType( ( modifiers & optionKey ) ? wxEVT_KEY_DOWN : wxEVT_KEY_UP ) ;
+                    focus->GetEventHandler()->ProcessEvent( event ) ;
+                }
+                if ( /* focus && */ (modifiers ^ wxApp::s_lastModifiers ) & cmdKey )
+                {
+                    event.m_keyCode = WXK_COMMAND ;
+                    event.SetEventType( ( modifiers & cmdKey ) ? wxEVT_KEY_DOWN : wxEVT_KEY_UP ) ;
+                    focus->GetEventHandler()->ProcessEvent( event ) ;
+                }
+
+                wxApp::s_lastModifiers = modifiers ;
+            }
+            break ;
+
+        default:
+            break;
+    }
+
+    return result ;
+}
+
+static pascal OSStatus wxOSXWebKitCtrlEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
+{
+    OSStatus result = eventNotHandledErr ;
+
+    wxMacCarbonEvent cEvent( event ) ;
+
+    ControlRef controlRef ;
+    wxOSXWebKitCtrl* thisWindow = (wxOSXWebKitCtrl*) data ;
+    wxNonOwnedWindow* tlw = NULL;
+    if (thisWindow)
+        tlw = thisWindow->MacGetTopLevelWindow();
+
+    cEvent.GetParameter( kEventParamDirectObject , &controlRef ) ;
+
+    wxWindow* currentMouseWindow = thisWindow ;
+
+    if ( wxApp::s_captureWindow )
+        currentMouseWindow = wxApp::s_captureWindow;
+
+    switch ( GetEventClass( event ) )
+    {
+        case kEventClassKeyboard:
+        {
+            result = wxWebKitKeyEventHandler(handler, event, data);
+            break;
+        }
+
+        case kEventClassTextInput:
+        {
+            result = wxMacUnicodeTextEventHandler(handler, event, data);
+            break;
+        }
+
+        case kEventClassMouse:
+        {
+            switch ( GetEventKind( event ) )
+            {
+                case kEventMouseDragged :
+                case kEventMouseMoved :
+                case kEventMouseDown :
+                case kEventMouseUp :
+                {
+                    wxMouseEvent wxevent(wxEVT_LEFT_DOWN);
+                    SetupMouseEvent( wxevent , cEvent ) ;
+
+                    currentMouseWindow->ScreenToClient( &wxevent.m_x , &wxevent.m_y ) ;
+                    wxevent.SetEventObject( currentMouseWindow ) ;
+                    wxevent.SetId( currentMouseWindow->GetId() ) ;
+
+                    if ( currentMouseWindow->GetEventHandler()->ProcessEvent(wxevent) )
+                    {
+                        result = noErr;
+                    }
+
+                    break; // this should enable WebKit to fire mouse dragged and mouse up events...
+                }
+                default :
+                    break ;
+            }
+        }
+        default:
+            break;
+    }
+
+    result = CallNextEventHandler(handler, event);
+    return result ;
+}
+
+DEFINE_ONE_SHOT_HANDLER_GETTER( wxOSXWebKitCtrlEventHandler )
+
+#endif
+
+//---------------------------------------------------------
+// helper functions for NSString<->wxString conversion
+//---------------------------------------------------------
+
+inline wxString wxStringWithNSString(NSString *nsstring)
+{
+#if wxUSE_UNICODE
+    return wxString([nsstring UTF8String], wxConvUTF8);
+#else
+    return wxString([nsstring lossyCString]);
+#endif // wxUSE_UNICODE
+}
+
+inline NSString* wxNSStringWithWxString(const wxString &wxstring)
+{
+#if wxUSE_UNICODE
+    return [NSString stringWithUTF8String: wxstring.mb_str(wxConvUTF8)];
+#else
+    return [NSString stringWithCString: wxstring.c_str() length:wxstring.Len()];
+#endif // wxUSE_UNICODE
+}
+
+inline int wxNavTypeFromWebNavType(int type){
+    if (type == WebNavigationTypeLinkClicked)
+        return wxWEBKIT_NAV_LINK_CLICKED;
+
+    if (type == WebNavigationTypeFormSubmitted)
+        return wxWEBKIT_NAV_FORM_SUBMITTED;
+
+    if (type == WebNavigationTypeBackForward)
+        return wxWEBKIT_NAV_BACK_NEXT;
+
+    if (type == WebNavigationTypeReload)
+        return wxWEBKIT_NAV_RELOAD;
+
+    if (type == WebNavigationTypeFormResubmitted)
+        return wxWEBKIT_NAV_FORM_RESUBMITTED;
+
+    return wxWEBKIT_NAV_OTHER;
+}
+
+@interface MyFrameLoadMonitor : NSObject
+{
+    wxOSXWebKitCtrl* webKitWindow;
+}
+
+- initWithWxWindow: (wxOSXWebKitCtrl*)inWindow;
+
+@end
+
+@interface MyPolicyDelegate : NSObject
+{
+    wxOSXWebKitCtrl* webKitWindow;
+}
+
+- initWithWxWindow: (wxOSXWebKitCtrl*)inWindow;
+
+@end
+
+// ----------------------------------------------------------------------------
+// creation/destruction
+// ----------------------------------------------------------------------------
+
+bool wxOSXWebKitCtrl::Create(wxWindow *parent,
+                                 wxWindowID winID,
+                                 const wxString& strURL,
+                                 const wxPoint& pos,
+                                 const wxSize& size, long style,
+                                 const wxString& name)
+{
+    m_busy = false;
+    //m_pageTitle = _("Untitled Page");
+
+ //still needed for wxCocoa??
+/*
+    int width, height;
+    wxSize sizeInstance;
+    if (size.x == wxDefaultCoord || size.y == wxDefaultCoord)
+    {
+        m_parent->GetClientSize(&width, &height);
+        sizeInstance.x = width;
+        sizeInstance.y = height;
+    }
+    else
+    {
+        sizeInstance.x = size.x;
+        sizeInstance.y = size.y;
+    }
+*/
+    // now create and attach WebKit view...
+#ifdef __WXCOCOA__
+    wxControl::Create(parent, m_windowID, pos, sizeInstance, style, name);
+    SetSize(pos.x, pos.y, sizeInstance.x, sizeInstance.y);
+
+    wxTopLevelWindowCocoa *topWin = wxDynamicCast(this, wxTopLevelWindowCocoa);
+    NSWindow* nsWin = topWin->GetNSWindow();
+    NSRect rect;
+    rect.origin.x = pos.x;
+    rect.origin.y = pos.y;
+    rect.size.width = sizeInstance.x;
+    rect.size.height = sizeInstance.y;
+    m_webView = (WebView*)[[WebView alloc] initWithFrame:rect
+                                               frameName:@"webkitFrame"
+                                               groupName:@"webkitGroup"];
+    SetNSView(m_webView);
+    [m_cocoaNSView release];
+
+    if(m_parent) m_parent->CocoaAddChild(this);
+    SetInitialFrameRect(pos,sizeInstance);
+#else
+    m_macIsUserPane = false;
+    wxControl::Create(parent, winID, pos, size, style, wxDefaultValidator, name);
+
+#if wxOSX_USE_CARBON
+    m_peer = new wxMacControl(this);
+    WebInitForCarbon();
+    HIWebViewCreate( m_peer->GetControlRefAddr() );
+
+    m_webView = (WebView*) HIWebViewGetWebView( m_peer->GetControlRef() );
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3
+    if ( UMAGetSystemVersion() >= 0x1030 )
+        HIViewChangeFeatures( m_peer->GetControlRef() , kHIViewIsOpaque , 0 ) ;
+#endif
+    InstallControlEventHandler(m_peer->GetControlRef(),
+                               GetwxOSXWebKitCtrlEventHandlerUPP(),
+                               GetEventTypeCount(eventList), eventList, this,
+                              (EventHandlerRef *)&m_webKitCtrlEventHandler);
+#else
+    NSRect r = wxOSXGetFrameForControl( this, pos , size ) ;
+    m_webView = [[WebView alloc] initWithFrame:r
+                                     frameName:@"webkitFrame"
+                                     groupName:@"webkitGroup"];
+    m_peer = new wxWidgetCocoaImpl( this, m_webView );
+#endif
+
+    wx_webviewctrls[m_webView] = this;
+
+    MacPostControlCreate(pos, size);
+
+#if wxOSX_USE_CARBON
+    HIViewSetVisible( m_peer->GetControlRef(), true );
+#endif
+    [m_webView setHidden:false];
+
+#endif
+
+    // Register event listener interfaces
+    MyFrameLoadMonitor* myFrameLoadMonitor =
+            [[MyFrameLoadMonitor alloc] initWithWxWindow: this];
+
+    [m_webView setFrameLoadDelegate:myFrameLoadMonitor];
+
+    // this is used to veto page loads, etc.
+    MyPolicyDelegate* myPolicyDelegate =
+            [[MyPolicyDelegate alloc] initWithWxWindow: this];
+
+    [m_webView setPolicyDelegate:myPolicyDelegate];
+
+    InternalLoadURL(strURL);
+    return true;
+}
+
+wxOSXWebKitCtrl::~wxOSXWebKitCtrl()
+{
+    MyFrameLoadMonitor* myFrameLoadMonitor = [m_webView frameLoadDelegate];
+    MyPolicyDelegate* myPolicyDelegate = [m_webView policyDelegate];
+    [m_webView setFrameLoadDelegate: nil];
+    [m_webView setPolicyDelegate: nil];
+
+    if (myFrameLoadMonitor)
+        [myFrameLoadMonitor release];
+
+    if (myPolicyDelegate)
+        [myPolicyDelegate release];
+}
+
+// ----------------------------------------------------------------------------
+// public methods
+// ----------------------------------------------------------------------------
+
+void wxOSXWebKitCtrl::InternalLoadURL(const wxString &url)
+{
+    if( !m_webView )
+        return;
+
+    [[m_webView mainFrame] loadRequest:[NSURLRequest requestWithURL:
+            [NSURL URLWithString:wxNSStringWithWxString(url)]]];
+}
+
+bool wxOSXWebKitCtrl::CanGoBack()
+{
+    if ( !m_webView )
+        return false;
+
+    return [m_webView canGoBack];
+}
+
+bool wxOSXWebKitCtrl::CanGoForward()
+{
+    if ( !m_webView )
+        return false;
+
+    return [m_webView canGoForward];
+}
+
+void wxOSXWebKitCtrl::GoBack()
+{
+    if ( !m_webView )
+        return;
+
+    bool result = [(WebView*)m_webView goBack];
+
+    // TODO: return result (if it also exists in other backends...)
+    //return result;
+}
+
+void wxOSXWebKitCtrl::GoForward()
+{
+    if ( !m_webView )
+        return;
+
+    bool result = [(WebView*)m_webView goForward];
+
+    // TODO: return result (if it also exists in other backends...)
+    //return result;
+}
+
+void wxOSXWebKitCtrl::Reload(wxWebViewReloadFlags flags)
+{
+    if ( !m_webView )
+        return;
+
+    if (flags & wxWEB_VIEW_RELOAD_NO_CACHE)
+    {
+        // TODO: test this indeed bypasses the cache
+        [[m_webView preferences] setUsesPageCache:NO];
+        [[m_webView mainFrame] reload];
+        [[m_webView preferences] setUsesPageCache:YES];
+    }
+    else
+    {
+        [[m_webView mainFrame] reload];
+    }
+}
+
+void wxOSXWebKitCtrl::Stop()
+{
+    if ( !m_webView )
+        return;
+
+    [[m_webView mainFrame] stopLoading];
+}
+
+bool wxOSXWebKitCtrl::CanGetPageSource()
+{
+    if ( !m_webView )
+        return false;
+
+    WebDataSource* dataSource = [[m_webView mainFrame] dataSource];
+    return ( [[dataSource representation] canProvideDocumentSource] );
+}
+
+wxString wxOSXWebKitCtrl::GetPageSource()
+{
+
+    if (CanGetPageSource())
+       {
+        WebDataSource* dataSource = [[m_webView mainFrame] dataSource];
+               wxASSERT (dataSource != nil);
+
+               id<WebDocumentRepresentation> representation = [dataSource representation];
+               wxASSERT (representation != nil);
+
+               NSString* source = [representation documentSource];
+               if (source == nil)
+               {
+                       return wxEmptyString;
+               }
+
+        return wxStringWithNSString( source );
+    }
+
+    return wxEmptyString;
+}
+
+wxString wxOSXWebKitCtrl::GetSelection()
+{
+    if ( !m_webView )
+        return wxEmptyString;
+
+    NSString* selectedText = [[m_webView selectedDOMRange] toString];
+    return wxStringWithNSString( selectedText );
+}
+
+bool wxOSXWebKitCtrl::CanIncreaseTextSize()
+{
+    if ( !m_webView )
+        return false;
+
+    if ([m_webView canMakeTextLarger])
+        return true;
+    else
+        return false;
+}
+
+void wxOSXWebKitCtrl::IncreaseTextSize()
+{
+    if ( !m_webView )
+        return;
+
+    if (CanIncreaseTextSize())
+        [m_webView makeTextLarger:(WebView*)m_webView];
+}
+
+bool wxOSXWebKitCtrl::CanDecreaseTextSize()
+{
+    if ( !m_webView )
+        return false;
+
+    if ([m_webView canMakeTextSmaller])
+        return true;
+    else
+        return false;
+}
+
+void wxOSXWebKitCtrl::DecreaseTextSize()
+{
+    if ( !m_webView )
+        return;
+
+    if (CanDecreaseTextSize())
+        [m_webView makeTextSmaller:(WebView*)m_webView];
+}
+
+void wxOSXWebKitCtrl::Print()
+{
+
+    // TODO: allow specifying the "show prompt" parameter in Print() ?
+    bool showPrompt = true;
+
+    if ( !m_webView )
+        return;
+
+    id view = [[[m_webView mainFrame] frameView] documentView];
+    NSPrintOperation *op = [NSPrintOperation printOperationWithView:view
+                                 printInfo: [NSPrintInfo sharedPrintInfo]];
+    if (showPrompt)
+    {
+        [op setShowsPrintPanel: showPrompt];
+        // in my tests, the progress bar always freezes and it stops the whole
+        // print operation. do not turn this to true unless there is a 
+        // workaround for the bug.
+        [op setShowsProgressPanel: false];
+    }
+    // Print it.
+    [op runOperation];
+}
+
+void wxOSXWebKitCtrl::MakeEditable(bool enable)
+{
+    if ( !m_webView )
+        return;
+
+    [m_webView setEditable:enable ];
+}
+
+bool wxOSXWebKitCtrl::IsEditable()
+{
+    if ( !m_webView )
+        return false;
+
+    return [m_webView isEditable];
+}
+
+void wxOSXWebKitCtrl::SetZoomType(wxWebViewZoomType zoomType)
+{
+    // there is only one supported zoom type at the moment so this setter
+    // does nothing beyond checking sanity
+    wxASSERT(zoomType == wxWEB_VIEW_ZOOM_TYPE_TEXT);
+}
+
+wxWebViewZoomType wxOSXWebKitCtrl::GetZoomType() const
+{
+    // for now that's the only one that is supported
+    // FIXME: does the default zoom type change depending on webkit versions? :S
+    //        Then this will be wrong
+    return wxWEB_VIEW_ZOOM_TYPE_TEXT;
+}
+
+bool wxOSXWebKitCtrl::CanSetZoomType(wxWebViewZoomType type) const
+{
+    switch (type)
+    {
+        // for now that's the only one that is supported
+        // TODO: I know recent versions of webkit support layout zoom too,
+        //       check if we can support it
+        case wxWEB_VIEW_ZOOM_TYPE_TEXT:
+            return true;
+
+        default:
+            return false;
+    }
+}
+
+int wxOSXWebKitCtrl::GetScrollPos()
+{
+    id result = [[m_webView windowScriptObject]
+                    evaluateWebScript:@"document.body.scrollTop"];
+    return [result intValue];
+}
+
+void wxOSXWebKitCtrl::SetScrollPos(int pos)
+{
+    if ( !m_webView )
+        return;
+
+    wxString javascript;
+    javascript.Printf(wxT("document.body.scrollTop = %d;"), pos);
+    [[m_webView windowScriptObject] evaluateWebScript:
+            (NSString*)wxNSStringWithWxString( javascript )];
+}
+
+wxString wxOSXWebKitCtrl::GetSelectedText()
+{
+    NSString* selection = [[m_webView selectedDOMRange] markupString];
+    if (!selection) return wxEmptyString;
+
+    return wxStringWithNSString(selection);
+}
+
+wxString wxOSXWebKitCtrl::RunScript(const wxString& javascript)
+{
+    if ( !m_webView )
+        return wxEmptyString;
+
+    id result = [[m_webView windowScriptObject] evaluateWebScript:
+                    (NSString*)wxNSStringWithWxString( javascript )];
+
+    NSString* resultAsString;
+    NSString* className = NSStringFromClass([result class]);
+
+    if ([className isEqualToString:@"NSCFNumber"])
+    {
+        resultAsString = [NSString stringWithFormat:@"%@", result];
+    }
+    else if ([className isEqualToString:@"NSCFString"])
+    {
+        resultAsString = result;
+    }
+    else if ([className isEqualToString:@"NSCFBoolean"])
+    {
+        if ([result boolValue])
+            resultAsString = @"true";
+        else
+            resultAsString = @"false";
+    }
+    else if ([className isEqualToString:@"WebScriptObject"])
+    {
+        resultAsString = [result stringRepresentation];
+    }
+    else
+    {
+        return wxString();
+    }
+
+    return wxStringWithNSString( resultAsString );
+}
+
+void wxOSXWebKitCtrl::OnSize(wxSizeEvent &event)
+{
+#if defined(__WXMAC_) && wxOSX_USE_CARBON
+    // This is a nasty hack because WebKit seems to lose its position when it is
+    // embedded in a control that is not itself the content view for a TLW.
+    // I put it in OnSize because these calcs are not perfect, and in fact are
+    // basically guesses based on reverse engineering, so it's best to give
+    // people the option of overriding OnSize with their own calcs if need be.
+    // I also left some test debugging print statements as a convenience if
+    // a(nother) problem crops up.
+
+    wxWindow* tlw = MacGetTopLevelWindow();
+
+    NSRect frame = [(WebView*)m_webView frame];
+    NSRect bounds = [(WebView*)m_webView bounds];
+
+#if DEBUG_WEBKIT_SIZING
+    fprintf(stderr,"Carbon window x=%d, y=%d, width=%d, height=%d\n",
+            GetPosition().x, GetPosition().y, GetSize().x, GetSize().y);
+    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);
+    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);
+#endif
+
+    // This must be the case that Apple tested with, because well, in this one case
+    // we don't need to do anything! It just works. ;)
+    if (GetParent() == tlw) return;
+
+    // since we no longer use parent coordinates, we always want 0,0.
+    int x = 0;
+    int y = 0;
+
+    HIRect rect;
+    rect.origin.x = x;
+    rect.origin.y = y;
+
+#if DEBUG_WEBKIT_SIZING
+    printf("Before conversion, origin is: x = %d, y = %d\n", x, y);
+#endif
+
+    // NB: In most cases, when calling HIViewConvertRect, what people want is to
+    // use GetRootControl(), and this tripped me up at first. But in fact, what
+    // we want is the root view, because we need to make the y origin relative
+    // to the very top of the window, not its contents, since we later flip
+    // the y coordinate for Cocoa.
+    HIViewConvertRect (&rect, m_peer->GetControlRef(),
+                                HIViewGetRoot(
+                                    (WindowRef) MacGetTopLevelWindowRef()
+                                 ));
+
+    x = (int)rect.origin.x;
+    y = (int)rect.origin.y;
+
+#if DEBUG_WEBKIT_SIZING
+    printf("Moving Cocoa frame origin to: x = %d, y = %d\n", x, y);
+#endif
+
+    if (tlw){
+        //flip the y coordinate to convert to Cocoa coordinates
+        y = tlw->GetSize().y - ((GetSize().y) + y);
+    }
+
+#if DEBUG_WEBKIT_SIZING
+    printf("y = %d after flipping value\n", y);
+#endif
+
+    frame.origin.x = x;
+    frame.origin.y = y;
+    [(WebView*)m_webView setFrame:frame];
+
+    if (IsShown())
+        [(WebView*)m_webView display];
+    event.Skip();
+#endif
+}
+
+void wxOSXWebKitCtrl::MacVisibilityChanged(){
+#if defined(__WXMAC__) && wxOSX_USE_CARBON
+    bool isHidden = !IsControlVisible( m_peer->GetControlRef());
+    if (!isHidden)
+        [(WebView*)m_webView display];
+
+    [m_webView setHidden:isHidden];
+#endif
+}
+
+void wxOSXWebKitCtrl::LoadUrl(const wxString& url)
+{
+    InternalLoadURL(url);
+}
+
+wxString wxOSXWebKitCtrl::GetCurrentURL()
+{
+    return wxStringWithNSString([m_webView mainFrameURL]);
+}
+
+wxString wxOSXWebKitCtrl::GetCurrentTitle()
+{
+    return GetPageTitle();
+}
+
+float wxOSXWebKitCtrl::GetWebkitZoom()
+{
+    return [m_webView textSizeMultiplier];
+}
+
+void wxOSXWebKitCtrl::SetWebkitZoom(float zoom)
+{
+    [m_webView setTextSizeMultiplier:zoom];
+}
+
+wxWebViewZoom wxOSXWebKitCtrl::GetZoom()
+{
+    float zoom = GetWebkitZoom();
+
+    // arbitrary way to map float zoom to our common zoom enum
+    if (zoom <= 0.55)
+    {
+        return wxWEB_VIEW_ZOOM_TINY;
+    }
+    else if (zoom > 0.55 && zoom <= 0.85)
+    {
+        return wxWEB_VIEW_ZOOM_SMALL;
+    }
+    else if (zoom > 0.85 && zoom <= 1.15)
+    {
+        return wxWEB_VIEW_ZOOM_MEDIUM;
+    }
+    else if (zoom > 1.15 && zoom <= 1.45)
+    {
+        return wxWEB_VIEW_ZOOM_LARGE;
+    }
+    else if (zoom > 1.45)
+    {
+        return wxWEB_VIEW_ZOOM_LARGEST;
+    }
+
+    // to shut up compilers, this can never be reached logically
+    wxASSERT(false);
+    return wxWEB_VIEW_ZOOM_MEDIUM;
+}
+
+void wxOSXWebKitCtrl::SetZoom(wxWebViewZoom zoom)
+{
+    // arbitrary way to map our common zoom enum to float zoom
+    switch (zoom)
+    {
+        case wxWEB_VIEW_ZOOM_TINY:
+            SetWebkitZoom(0.4f);
+            break;
+
+        case wxWEB_VIEW_ZOOM_SMALL:
+            SetWebkitZoom(0.7f);
+            break;
+
+        case wxWEB_VIEW_ZOOM_MEDIUM:
+            SetWebkitZoom(1.0f);
+            break;
+
+        case wxWEB_VIEW_ZOOM_LARGE:
+            SetWebkitZoom(1.3);
+            break;
+
+        case wxWEB_VIEW_ZOOM_LARGEST:
+            SetWebkitZoom(1.6);
+            break;
+
+        default:
+            wxASSERT(false);
+    }
+
+}
+
+void wxOSXWebKitCtrl::SetPage(const wxString& src, const wxString& baseUrl)
+{
+   if ( !m_webView )
+        return;
+
+    [[m_webView mainFrame] loadHTMLString:(NSString*)wxNSStringWithWxString(src)
+                                  baseURL:[NSURL URLWithString:
+                                    wxNSStringWithWxString( baseUrl )]];
+}
+
+//------------------------------------------------------------
+// Listener interfaces
+//------------------------------------------------------------
+
+// NB: I'm still tracking this down, but it appears the Cocoa window
+// still has these events fired on it while the Carbon control is being
+// destroyed. Therefore, we must be careful to check both the existence
+// of the Carbon control and the event handler before firing events.
+
+@implementation MyFrameLoadMonitor
+
+- initWithWxWindow: (wxOSXWebKitCtrl*)inWindow
+{
+    [super init];
+    webKitWindow = inWindow;    // non retained
+    return self;
+}
+
+- (void)webView:(WebView *)sender
+    didStartProvisionalLoadForFrame:(WebFrame *)frame
+{
+       wxASSERT(wx_webviewctrls.find(sender) != wx_webviewctrls.end());
+    wx_webviewctrls[sender]->m_busy = true;
+}
+
+- (void)webView:(WebView *)sender didCommitLoadForFrame:(WebFrame *)frame
+{
+       wxASSERT(wx_webviewctrls.find(sender) != wx_webviewctrls.end());
+    wx_webviewctrls[sender]->m_busy = true;
+
+    if (webKitWindow && frame == [sender mainFrame]){
+        NSString *url = [[[[frame dataSource] request] URL] absoluteString];
+        wxString target = wxStringWithNSString([frame name]);
+        wxWebNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_NAVIGATED,
+                                       wx_webviewctrls[sender]->GetId(),
+                                       wxStringWithNSString( url ),
+                                       target, false);
+
+        if (webKitWindow && webKitWindow->GetEventHandler())
+            webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
+    }
+}
+
+- (void)webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)frame
+{
+       wxASSERT(wx_webviewctrls.find(sender) != wx_webviewctrls.end());
+    wx_webviewctrls[sender]->m_busy = false;
+
+    if (webKitWindow && frame == [sender mainFrame]){
+        NSString *url = [[[[frame dataSource] request] URL] absoluteString];
+
+        wxString target = wxStringWithNSString([frame name]);
+        wxWebNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_LOADED,
+                                       wx_webviewctrls[sender]->GetId(),
+                                       wxStringWithNSString( url ),
+                                       target, false);
+
+        if (webKitWindow && webKitWindow->GetEventHandler())
+            webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
+    }
+}
+
+wxString nsErrorToWxHtmlError(NSError* error, wxWebNavigationError* out)
+{
+    *out = wxWEB_NAV_ERR_OTHER;
+
+    if ([[error domain] isEqualToString:NSURLErrorDomain])
+    {
+        switch ([error code])
+        {
+            case NSURLErrorCannotFindHost:
+            case NSURLErrorFileDoesNotExist:
+            case NSURLErrorRedirectToNonExistentLocation:
+                *out = wxWEB_NAV_ERR_NOT_FOUND;
+                break;
+
+            case NSURLErrorResourceUnavailable:
+            case NSURLErrorHTTPTooManyRedirects:
+            case NSURLErrorDataLengthExceedsMaximum:
+            case NSURLErrorBadURL:
+            case NSURLErrorFileIsDirectory:
+                *out = wxWEB_NAV_ERR_REQUEST;
+                break;
+
+            case NSURLErrorTimedOut:
+            case NSURLErrorDNSLookupFailed:
+            case NSURLErrorNetworkConnectionLost:
+            case NSURLErrorCannotConnectToHost:
+            case NSURLErrorNotConnectedToInternet:
+            //case NSURLErrorInternationalRoamingOff:
+            //case NSURLErrorCallIsActive:
+            //case NSURLErrorDataNotAllowed:
+                *out = wxWEB_NAV_ERR_CONNECTION;
+                break;
+
+            case NSURLErrorCancelled:
+            case NSURLErrorUserCancelledAuthentication:
+                *out = wxWEB_NAV_ERR_USER_CANCELLED;
+                break;
+
+            case NSURLErrorCannotDecodeRawData:
+            case NSURLErrorCannotDecodeContentData:
+            case NSURLErrorBadServerResponse:
+            case NSURLErrorCannotParseResponse:
+                *out = wxWEB_NAV_ERR_REQUEST;
+                break;
+
+            case NSURLErrorUserAuthenticationRequired:
+            case NSURLErrorSecureConnectionFailed:
+            case NSURLErrorClientCertificateRequired:
+                *out = wxWEB_NAV_ERR_AUTH;
+                break;
+
+            case NSURLErrorNoPermissionsToReadFile:
+                               *out = wxWEB_NAV_ERR_SECURITY;
+                break;
+
+            case NSURLErrorServerCertificateHasBadDate:
+            case NSURLErrorServerCertificateUntrusted:
+            case NSURLErrorServerCertificateHasUnknownRoot:
+            case NSURLErrorServerCertificateNotYetValid:
+            case NSURLErrorClientCertificateRejected:
+                *out = wxWEB_NAV_ERR_CERTIFICATE;
+                break;
+        }
+    }
+
+    wxString message = wxStringWithNSString([error localizedDescription]);
+    NSString* detail = [error localizedFailureReason];
+    if (detail != NULL)
+    {
+        message = message + " (" + wxStringWithNSString(detail) + ")";
+    }
+    return message;
+}
+
+- (void)webView:(WebView *)sender didFailLoadWithError:(NSError*) error
+        forFrame:(WebFrame *)frame
+{
+       wxASSERT(wx_webviewctrls.find(sender) != wx_webviewctrls.end());
+    wx_webviewctrls[sender]->m_busy = false;
+
+    if (webKitWindow && frame == [sender mainFrame]){
+        NSString *url = [[[[frame dataSource] request] URL] absoluteString];
+
+        wxWebNavigationError type;
+        wxString description = nsErrorToWxHtmlError(error, &type);
+               wxWebNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_ERROR,
+                                              wx_webviewctrls[sender]->GetId(),
+                                       wxStringWithNSString( url ),
+                                       wxEmptyString, false);
+               thisEvent.SetString(description);
+               thisEvent.SetInt(type);
+
+               if (webKitWindow && webKitWindow->GetEventHandler())
+               {
+                       webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
+               }
+    }
+}
+
+- (void)webView:(WebView *)sender
+        didFailProvisionalLoadWithError:(NSError*)error
+                               forFrame:(WebFrame *)frame
+{
+       wxASSERT(wx_webviewctrls.find(sender) != wx_webviewctrls.end());
+    wx_webviewctrls[sender]->m_busy = false;
+
+    if (webKitWindow && frame == [sender mainFrame]){
+        NSString *url = [[[[frame provisionalDataSource] request] URL]
+                            absoluteString];
+
+               wxWebNavigationError type;
+        wxString description = nsErrorToWxHtmlError(error, &type);
+               wxWebNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_ERROR,
+                                              wx_webviewctrls[sender]->GetId(),
+                                       wxStringWithNSString( url ),
+                                       wxEmptyString, false);
+               thisEvent.SetString(description);
+               thisEvent.SetInt(type);
+
+               if (webKitWindow && webKitWindow->GetEventHandler())
+                       webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
+    }
+}
+
+- (void)webView:(WebView *)sender didReceiveTitle:(NSString *)title
+                                         forFrame:(WebFrame *)frame
+{
+    if (webKitWindow && frame == [sender mainFrame])
+    {
+        webKitWindow->SetPageTitle(wxStringWithNSString( title ));
+    }
+}
+@end
+
+@implementation MyPolicyDelegate
+
+- initWithWxWindow: (wxOSXWebKitCtrl*)inWindow
+{
+    [super init];
+    webKitWindow = inWindow;    // non retained
+    return self;
+}
+
+- (void)webView:(WebView *)sender
+        decidePolicyForNavigationAction:(NSDictionary *)actionInformation
+                                request:(NSURLRequest *)request
+                                  frame:(WebFrame *)frame
+                       decisionListener:(id<WebPolicyDecisionListener>)listener
+{
+    //wxUnusedVar(sender);
+    wxUnusedVar(frame);
+
+    wxASSERT(wx_webviewctrls.find(sender) != wx_webviewctrls.end());
+    wx_webviewctrls[sender]->m_busy = true;
+    NSString *url = [[request URL] absoluteString];
+    wxString target = wxStringWithNSString([frame name]);
+    wxWebNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_NAVIGATING,
+                                   wx_webviewctrls[sender]->GetId(),
+                                   wxStringWithNSString( url ), target, true);
+
+    if (webKitWindow && webKitWindow->GetEventHandler())
+        webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
+
+    if (thisEvent.IsVetoed())
+    {
+        wx_webviewctrls[sender]->m_busy = false;
+        [listener ignore];
+    }
+    else
+    {
+        [listener use];
+    }
+}
+
+- (void)webView:(WebView *)sender 
+      decidePolicyForNewWindowAction:(NSDictionary *)actionInformation
+                             request:(NSURLRequest *)request
+                        newFrameName:(NSString *)frameName
+                    decisionListener:(id < WebPolicyDecisionListener >)listener
+{
+    wxUnusedVar(sender);
+    wxUnusedVar(actionInformation);
+
+    [listener ignore];
+}
+@end
+
+#endif //wxHAVE_WEB_BACKEND_OSX_WEBKIT