public static TResult TouchNotificationSwitch <TResult>(TouchNotification notification, TResult defaultResult,
Func <TouchDownNotification, TResult> onDown,
Func <TouchMoveNotification, TResult> onMove,
Func <TouchUpNotification, TResult> onUp)
where TResult : class
{
switch (notification.Kind)
{
case TouchNotificationKind.TouchDown:
return(onDown?.Invoke((TouchDownNotification)notification) ?? defaultResult);
case TouchNotificationKind.TouchUp:
return(onUp?.Invoke((TouchUpNotification)notification) ?? defaultResult);
case TouchNotificationKind.TouchMove:
return(onMove?.Invoke((TouchMoveNotification)notification) ?? defaultResult);
default:
return(defaultResult);
}
}
private void HandleTouchNotification(TouchNotification n, CallerInfo caller)
{
var position = GetPositionInViewport(n, caller);
var touchEvent = new CefTouchEvent()
{
Id = n.Id,
//Modifiers = (CefEventFlags)((int)(FKeyboard.Modifiers) >> 15),
PointerType = CefPointerType.Touch,
Pressure = 1f,
RadiusX = n.ContactArea.X,
RadiusY = n.ContactArea.Y,
RotationAngle = 0,
Type = GetTouchType(n.Kind),
X = position.X,
Y = position.Y
};
webRenderer.BrowserHost.SendTouchEvent(touchEvent);
CefTouchEventType GetTouchType(TouchNotificationKind kind)
{
switch (kind)
{
case TouchNotificationKind.TouchDown:
return(CefTouchEventType.Pressed);
case TouchNotificationKind.TouchUp:
return(CefTouchEventType.Released);
case TouchNotificationKind.TouchMove:
return(CefTouchEventType.Moved);
default:
return(CefTouchEventType.Cancelled);
}
}
}