// 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
/////////////////////////////////////////////////////////////////////////////
#include "wx/osx/webview_webkit.h"
-#if wxUSE_WEBVIEW_WEBKIT && (defined(__WXOSX_COCOA__) \
- || defined(__WXOSX_CARBON__))
+#if wxUSE_WEBVIEW && wxUSE_WEBVIEW_WEBKIT && (defined(__WXOSX_COCOA__) \
+ || defined(__WXOSX_CARBON__))
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
UInt32 keyCode ;
UInt32 modifiers ;
- Point point ;
UInt32 when = EventTimeToTicks( GetEventTime( event ) ) ;
#if wxUSE_UNICODE
#endif
GetEventParameter(event, kEventParamKeyMacCharCodes, typeChar, NULL,
- sizeof(char), NULL, &charCode );
+ 1, 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 ) )
wxTheApp->MacSetCurrentEvent( event , handler ) ;
if ( /* focus && */ wxTheApp->MacSendKeyDownEvent(
- focus, message, modifiers, when, point.h, point.v, uniChar[0]))
+ focus, message, modifiers, when, uniChar[0]))
{
result = noErr ;
}
case kEventRawKeyUp :
if ( /* focus && */ wxTheApp->MacSendKeyUpEvent(
- focus , message , modifiers , when , point.h , point.v , uniChar[0] ) )
+ focus , message , modifiers , when , uniChar[0] ) )
{
result = noErr ;
}
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] ;
@end
+@interface WebViewUIDelegate : NSObject
+{
+ wxWebViewWebKit* webKitWindow;
+}
+
+- initWithWxWindow: (wxWebViewWebKit*)inWindow;
+
+@end
+
//We use a hash to map scheme names to wxWebViewHandler
WX_DECLARE_STRING_HASH_MAP(wxSharedPtr<wxWebViewHandler>, wxStringToWebHandlerMap);
[m_webView setPolicyDelegate:policyDelegate];
+ WebViewUIDelegate* uiDelegate =
+ [[WebViewUIDelegate alloc] initWithWxWindow: this];
+
+ [m_webView setUIDelegate:uiDelegate];
+
//Register our own class for custom scheme handling
[NSURLProtocol registerClass:[WebViewCustomProtocol class]];
- LoadUrl(strURL);
+ LoadURL(strURL);
return true;
}
{
WebViewLoadDelegate* loadDelegate = [m_webView frameLoadDelegate];
WebViewPolicyDelegate* policyDelegate = [m_webView policyDelegate];
+ WebViewUIDelegate* uiDelegate = [m_webView UIDelegate];
[m_webView setFrameLoadDelegate: nil];
[m_webView setPolicyDelegate: nil];
+ [m_webView setUIDelegate: nil];
if (loadDelegate)
[loadDelegate release];
if (policyDelegate)
[policyDelegate release];
+
+ if (uiDelegate)
+ [uiDelegate release];
}
// ----------------------------------------------------------------------------
// public methods
// ----------------------------------------------------------------------------
-bool wxWebViewWebKit::CanGoBack()
+bool wxWebViewWebKit::CanGoBack() const
{
if ( !m_webView )
return false;
return [m_webView canGoBack];
}
-bool wxWebViewWebKit::CanGoForward()
+bool wxWebViewWebKit::CanGoForward() const
{
if ( !m_webView )
return false;
if ( !m_webView )
return;
- if (flags & wxWEB_VIEW_RELOAD_NO_CACHE)
+ if (flags & wxWEBVIEW_RELOAD_NO_CACHE)
{
// TODO: test this indeed bypasses the cache
[[m_webView preferences] setUsesPageCache:NO];
[[m_webView mainFrame] stopLoading];
}
-bool wxWebViewWebKit::CanGetPageSource()
+bool wxWebViewWebKit::CanGetPageSource() const
{
if ( !m_webView )
return false;
return ( [[dataSource representation] canProvideDocumentSource] );
}
-wxString wxWebViewWebKit::GetPageSource()
+wxString wxWebViewWebKit::GetPageSource() const
{
if (CanGetPageSource())
return wxEmptyString;
}
-bool wxWebViewWebKit::CanIncreaseTextSize()
+bool wxWebViewWebKit::CanIncreaseTextSize() const
{
if ( !m_webView )
return false;
[m_webView makeTextLarger:(WebView*)m_webView];
}
-bool wxWebViewWebKit::CanDecreaseTextSize()
+bool wxWebViewWebKit::CanDecreaseTextSize() const
{
if ( !m_webView )
return false;
{
[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
+ // print operation. do not turn this to true unless there is a
// workaround for the bug.
[op setShowsProgressPanel: false];
}
[m_webView setEditable:enable ];
}
-bool wxWebViewWebKit::IsEditable()
+bool wxWebViewWebKit::IsEditable() const
{
if ( !m_webView )
return false;
{
// 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);
+ wxASSERT(zoomType == wxWEBVIEW_ZOOM_TYPE_TEXT);
}
wxWebViewZoomType wxWebViewWebKit::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;
+ return wxWEBVIEW_ZOOM_TYPE_TEXT;
}
bool wxWebViewWebKit::CanSetZoomType(wxWebViewZoomType type) const
// 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:
+ case wxWEBVIEW_ZOOM_TYPE_TEXT:
return true;
default:
(NSString*)wxNSStringWithWxString( javascript )];
}
-wxString wxWebViewWebKit::GetSelectedText()
+wxString wxWebViewWebKit::GetSelectedText() const
{
- NSString* selection = [[m_webView selectedDOMRange] markupString];
- if (!selection) return wxEmptyString;
+ DOMRange* dr = [m_webView selectedDOMRange];
+ if ( !dr )
+ return wxString();
- return wxStringWithNSString(selection);
+ return wxStringWithNSString([dr toString]);
}
void wxWebViewWebKit::RunScript(const wxString& javascript)
void wxWebViewWebKit::OnSize(wxSizeEvent &event)
{
-#if defined(__WXMAC_) && wxOSX_USE_CARBON
+#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
// 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(),
+ HIViewConvertRect (&rect, GetPeer()->GetControlRef(),
HIViewGetRoot(
(WindowRef) MacGetTopLevelWindowRef()
));
#endif
}
-void wxWebViewWebKit::LoadUrl(const wxString& url)
+void wxWebViewWebKit::LoadURL(const wxString& url)
{
[[m_webView mainFrame] loadRequest:[NSURLRequest requestWithURL:
[NSURL URLWithString:wxNSStringWithWxString(url)]]];
}
-wxString wxWebViewWebKit::GetCurrentURL()
+wxString wxWebViewWebKit::GetCurrentURL() const
{
return wxStringWithNSString([m_webView mainFrameURL]);
}
-wxString wxWebViewWebKit::GetCurrentTitle()
+wxString wxWebViewWebKit::GetCurrentTitle() const
{
return wxStringWithNSString([m_webView mainFrameTitle]);
}
-float wxWebViewWebKit::GetWebkitZoom()
+float wxWebViewWebKit::GetWebkitZoom() const
{
return [m_webView textSizeMultiplier];
}
[m_webView setTextSizeMultiplier:zoom];
}
-wxWebViewZoom wxWebViewWebKit::GetZoom()
+wxWebViewZoom wxWebViewWebKit::GetZoom() const
{
float zoom = GetWebkitZoom();
// arbitrary way to map float zoom to our common zoom enum
if (zoom <= 0.55)
{
- return wxWEB_VIEW_ZOOM_TINY;
+ return wxWEBVIEW_ZOOM_TINY;
}
else if (zoom > 0.55 && zoom <= 0.85)
{
- return wxWEB_VIEW_ZOOM_SMALL;
+ return wxWEBVIEW_ZOOM_SMALL;
}
else if (zoom > 0.85 && zoom <= 1.15)
{
- return wxWEB_VIEW_ZOOM_MEDIUM;
+ return wxWEBVIEW_ZOOM_MEDIUM;
}
else if (zoom > 1.15 && zoom <= 1.45)
{
- return wxWEB_VIEW_ZOOM_LARGE;
+ return wxWEBVIEW_ZOOM_LARGE;
}
else if (zoom > 1.45)
{
- return wxWEB_VIEW_ZOOM_LARGEST;
+ return wxWEBVIEW_ZOOM_LARGEST;
}
// to shut up compilers, this can never be reached logically
wxASSERT(false);
- return wxWEB_VIEW_ZOOM_MEDIUM;
+ return wxWEBVIEW_ZOOM_MEDIUM;
}
void wxWebViewWebKit::SetZoom(wxWebViewZoom zoom)
// arbitrary way to map our common zoom enum to float zoom
switch (zoom)
{
- case wxWEB_VIEW_ZOOM_TINY:
+ case wxWEBVIEW_ZOOM_TINY:
SetWebkitZoom(0.4f);
break;
- case wxWEB_VIEW_ZOOM_SMALL:
+ case wxWEBVIEW_ZOOM_SMALL:
SetWebkitZoom(0.7f);
break;
- case wxWEB_VIEW_ZOOM_MEDIUM:
+ case wxWEBVIEW_ZOOM_MEDIUM:
SetWebkitZoom(1.0f);
break;
- case wxWEB_VIEW_ZOOM_LARGE:
+ case wxWEBVIEW_ZOOM_LARGE:
SetWebkitZoom(1.3);
break;
- case wxWEB_VIEW_ZOOM_LARGEST:
+ case wxWEBVIEW_ZOOM_LARGEST:
SetWebkitZoom(1.6);
break;
}
-void wxWebViewWebKit::SetPage(const wxString& src, const wxString& baseUrl)
+void wxWebViewWebKit::DoSetPage(const wxString& src, const wxString& baseUrl)
{
if ( !m_webView )
return;
[(WebView*)m_webView deleteSelection];
}
-bool wxWebViewWebKit::HasSelection()
+bool wxWebViewWebKit::HasSelection() const
{
DOMRange* range = [m_webView selectedDOMRange];
if(!range)
RunScript("window.getSelection().selectAllChildren(document.body);");
}
-wxString wxWebViewWebKit::GetSelectedSource()
+wxString wxWebViewWebKit::GetSelectedSource() const
{
- wxString script = ("var range = window.getSelection().getRangeAt(0);"
- "var element = document.createElement('div');"
- "element.appendChild(range.cloneContents());"
- "return element.innerHTML;");
- id result = [[m_webView windowScriptObject]
- evaluateWebScript:wxNSStringWithWxString(script)];
- return wxStringWithNSString([result stringValue]);
+ DOMRange* dr = [m_webView selectedDOMRange];
+ if ( !dr )
+ return wxString();
+
+ return wxStringWithNSString([dr markupString]);
}
-wxString wxWebViewWebKit::GetPageText()
+wxString wxWebViewWebKit::GetPageText() const
{
- id result = [[m_webView windowScriptObject]
- evaluateWebScript:@"document.body.textContent"];
- return wxStringWithNSString([result stringValue]);
+ NSString *result = [m_webView stringByEvaluatingJavaScriptFromString:
+ @"document.body.textContent"];
+ return wxStringWithNSString(result);
}
void wxWebViewWebKit::EnableHistory(bool enable)
[m_webView goToBackForwardItem:item->m_histItem];
}
-bool wxWebViewWebKit::CanUndo()
+bool wxWebViewWebKit::CanUndo() const
{
return [[m_webView undoManager] canUndo];
}
-bool wxWebViewWebKit::CanRedo()
+bool wxWebViewWebKit::CanRedo() const
{
return [[m_webView undoManager] canRedo];
}
if (webKitWindow && frame == [sender mainFrame]){
NSString *url = [[[[frame dataSource] request] URL] absoluteString];
wxString target = wxStringWithNSString([frame name]);
- wxWebViewNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_NAVIGATED,
- webKitWindow->GetId(),
- wxStringWithNSString( url ),
- target, false);
+ wxWebViewEvent event(wxEVT_WEBVIEW_NAVIGATED,
+ webKitWindow->GetId(),
+ wxStringWithNSString( url ),
+ target);
if (webKitWindow && webKitWindow->GetEventHandler())
- webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
+ webKitWindow->GetEventHandler()->ProcessEvent(event);
}
}
NSString *url = [[[[frame dataSource] request] URL] absoluteString];
wxString target = wxStringWithNSString([frame name]);
- wxWebViewNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_LOADED,
- webKitWindow->GetId(),
- wxStringWithNSString( url ),
- target, false);
+ wxWebViewEvent event(wxEVT_WEBVIEW_LOADED,
+ webKitWindow->GetId(),
+ wxStringWithNSString( url ),
+ target);
if (webKitWindow && webKitWindow->GetEventHandler())
- webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
+ webKitWindow->GetEventHandler()->ProcessEvent(event);
}
}
wxString nsErrorToWxHtmlError(NSError* error, wxWebViewNavigationError* out)
{
- *out = wxWEB_NAV_ERR_OTHER;
+ *out = wxWEBVIEW_NAV_ERR_OTHER;
if ([[error domain] isEqualToString:NSURLErrorDomain])
{
case NSURLErrorCannotFindHost:
case NSURLErrorFileDoesNotExist:
case NSURLErrorRedirectToNonExistentLocation:
- *out = wxWEB_NAV_ERR_NOT_FOUND;
+ *out = wxWEBVIEW_NAV_ERR_NOT_FOUND;
break;
case NSURLErrorResourceUnavailable:
case NSURLErrorHTTPTooManyRedirects:
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
case NSURLErrorDataLengthExceedsMaximum:
+#endif
case NSURLErrorBadURL:
case NSURLErrorFileIsDirectory:
- *out = wxWEB_NAV_ERR_REQUEST;
+ *out = wxWEBVIEW_NAV_ERR_REQUEST;
break;
case NSURLErrorTimedOut:
//case NSURLErrorInternationalRoamingOff:
//case NSURLErrorCallIsActive:
//case NSURLErrorDataNotAllowed:
- *out = wxWEB_NAV_ERR_CONNECTION;
+ *out = wxWEBVIEW_NAV_ERR_CONNECTION;
break;
case NSURLErrorCancelled:
case NSURLErrorUserCancelledAuthentication:
- *out = wxWEB_NAV_ERR_USER_CANCELLED;
+ *out = wxWEBVIEW_NAV_ERR_USER_CANCELLED;
break;
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
case NSURLErrorCannotDecodeRawData:
case NSURLErrorCannotDecodeContentData:
- case NSURLErrorBadServerResponse:
case NSURLErrorCannotParseResponse:
- *out = wxWEB_NAV_ERR_REQUEST;
+#endif
+ case NSURLErrorBadServerResponse:
+ *out = wxWEBVIEW_NAV_ERR_REQUEST;
break;
case NSURLErrorUserAuthenticationRequired:
case NSURLErrorSecureConnectionFailed:
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
case NSURLErrorClientCertificateRequired:
- *out = wxWEB_NAV_ERR_AUTH;
+#endif
+ *out = wxWEBVIEW_NAV_ERR_AUTH;
break;
case NSURLErrorNoPermissionsToReadFile:
- *out = wxWEB_NAV_ERR_SECURITY;
+ *out = wxWEBVIEW_NAV_ERR_SECURITY;
break;
case NSURLErrorServerCertificateHasBadDate:
case NSURLErrorServerCertificateHasUnknownRoot:
case NSURLErrorServerCertificateNotYetValid:
case NSURLErrorClientCertificateRejected:
- *out = wxWEB_NAV_ERR_CERTIFICATE;
+ *out = wxWEBVIEW_NAV_ERR_CERTIFICATE;
break;
}
}
wxWebViewNavigationError type;
wxString description = nsErrorToWxHtmlError(error, &type);
- wxWebViewNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_ERROR,
- webKitWindow->GetId(),
- wxStringWithNSString( url ),
- wxEmptyString, false);
- thisEvent.SetString(description);
- thisEvent.SetInt(type);
+ wxWebViewEvent event(wxEVT_WEBVIEW_ERROR,
+ webKitWindow->GetId(),
+ wxStringWithNSString( url ),
+ wxEmptyString);
+ event.SetString(description);
+ event.SetInt(type);
if (webKitWindow && webKitWindow->GetEventHandler())
{
- webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
+ webKitWindow->GetEventHandler()->ProcessEvent(event);
}
}
}
wxWebViewNavigationError type;
wxString description = nsErrorToWxHtmlError(error, &type);
- wxWebViewNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_ERROR,
- webKitWindow->GetId(),
- wxStringWithNSString( url ),
- wxEmptyString, false);
- thisEvent.SetString(description);
- thisEvent.SetInt(type);
+ wxWebViewEvent event(wxEVT_WEBVIEW_ERROR,
+ webKitWindow->GetId(),
+ wxStringWithNSString( url ),
+ wxEmptyString);
+ event.SetString(description);
+ event.SetInt(type);
if (webKitWindow && webKitWindow->GetEventHandler())
- webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
+ webKitWindow->GetEventHandler()->ProcessEvent(event);
}
}
forFrame:(WebFrame *)frame
{
wxString target = wxStringWithNSString([frame name]);
- wxWebViewNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_TITLE_CHANGED,
- webKitWindow->GetId(),
- webKitWindow->GetCurrentURL(),
- target, true);
-
- thisEvent.SetString(wxStringWithNSString(title));
+ wxWebViewEvent event(wxEVT_WEBVIEW_TITLE_CHANGED,
+ webKitWindow->GetId(),
+ webKitWindow->GetCurrentURL(),
+ target);
+
+ event.SetString(wxStringWithNSString(title));
if (webKitWindow && webKitWindow->GetEventHandler())
- webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
+ webKitWindow->GetEventHandler()->ProcessEvent(event);
}
@end
webKitWindow->m_busy = true;
NSString *url = [[request URL] absoluteString];
wxString target = wxStringWithNSString([frame name]);
- wxWebViewNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_NAVIGATING,
- webKitWindow->GetId(),
- wxStringWithNSString( url ), target, true);
+ wxWebViewEvent event(wxEVT_WEBVIEW_NAVIGATING,
+ webKitWindow->GetId(),
+ wxStringWithNSString( url ), target);
if (webKitWindow && webKitWindow->GetEventHandler())
- webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
+ webKitWindow->GetEventHandler()->ProcessEvent(event);
- if (thisEvent.IsVetoed())
+ if (!event.IsAllowed())
{
webKitWindow->m_busy = false;
[listener ignore];
}
}
-- (void)webView:(WebView *)sender
+- (void)webView:(WebView *)sender
decidePolicyForNewWindowAction:(NSDictionary *)actionInformation
request:(NSURLRequest *)request
newFrameName:(NSString *)frameName
wxUnusedVar(actionInformation);
NSString *url = [[request URL] absoluteString];
- wxWebViewNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_NEWWINDOW,
- webKitWindow->GetId(),
- wxStringWithNSString( url ), "", true);
+ wxWebViewEvent event(wxEVT_WEBVIEW_NEWWINDOW,
+ webKitWindow->GetId(),
+ wxStringWithNSString( url ), "");
if (webKitWindow && webKitWindow->GetEventHandler())
- webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
+ webKitWindow->GetEventHandler()->ProcessEvent(event);
[listener ignore];
}
NSURLRequest *request = [self request];
NSString* path = [[request URL] absoluteString];
+ id<NSURLProtocolClient> client = [self client];
+
wxString wxpath = wxStringWithNSString(path);
wxString scheme = wxStringWithNSString([[request URL] scheme]);
wxFSFile* file = g_stringHandlerMap[scheme]->GetFile(wxpath);
+
+ if (!file)
+ {
+ NSError *error = [[NSError alloc] initWithDomain:NSURLErrorDomain
+ code:NSURLErrorFileDoesNotExist
+ userInfo:nil];
+
+ [client URLProtocol:self didFailWithError:error];
+
+ return;
+ }
+
size_t length = file->GetStream()->GetLength();
NSURLResponse *response = [[NSURLResponse alloc] initWithURL:[request URL]
MIMEType:wxNSStringWithWxString(file->GetMimeType())
- expectedContentLength:length
+ expectedContentLength:length
textEncodingName:nil];
-
+
//Load the data, we malloc it so it is tidied up properly
void* buffer = malloc(length);
file->GetStream()->Read(buffer, length);
NSData *data = [[NSData alloc] initWithBytesNoCopy:buffer length:length];
-
- id<NSURLProtocolClient> client = [self client];
//We do not support caching anything yet
- [client URLProtocol:self didReceiveResponse:response
+ [client URLProtocol:self didReceiveResponse:response
cacheStoragePolicy:NSURLCacheStorageNotAllowed];
//Set the data
@end
-#endif //wxUSE_WEBVIEW_WEBKIT
+
+@implementation WebViewUIDelegate
+
+- initWithWxWindow: (wxWebViewWebKit*)inWindow
+{
+ [super init];
+ webKitWindow = inWindow; // non retained
+ return self;
+}
+
+- (void)webView:(WebView *)sender printFrameView:(WebFrameView *)frameView
+{
+ wxUnusedVar(sender);
+ wxUnusedVar(frameView);
+
+ webKitWindow->Print();
+}
+
+- (NSArray *)webView:(WebView *)sender contextMenuItemsForElement:(NSDictionary *)element
+ defaultMenuItems:(NSArray *) defaultMenuItems
+{
+ if(webKitWindow->IsContextMenuEnabled())
+ return defaultMenuItems;
+ else
+ return nil;
+}
+@end
+
+#endif //wxUSE_WEBVIEW && wxUSE_WEBVIEW_WEBKIT
projects / wxWidgets.git / blobdiff