private void RegisterLifecycleEvent()
{
if (!s_lifecycleEventRefCnt.ContainsKey(Id))
{
s_lifecycleEventRefCnt[Id] = 0;
}
if (_created != null || _paused != null || _resumed != null || _destroyed != null)
{
return;
}
if (s_lifecycleEventRefCnt[Id] == 0)
{
if (_onLifecycleCallback == null)
{
_onLifecycleCallback = new Interop.WidgetService.LifecycleCallback(OnLifecycleEvent);
}
Interop.WidgetService.ErrorCode err = Interop.WidgetService.SetLifecycleEvent(Id, _onLifecycleCallback, IntPtr.Zero);
switch (err)
{
case Interop.WidgetService.ErrorCode.InvalidParameter:
throw new InvalidOperationException("Invalid parameter at unmanaged code");
case Interop.WidgetService.ErrorCode.PermissionDenied:
throw new UnauthorizedAccessException();
}
}
s_lifecycleEventRefCnt[Id]++;
s_eventObjects.Add(this);
Log.Debug(LogTag, "register lifecycle cb " + Id + " [" + s_lifecycleEventRefCnt[Id] + "]");
}
private void UnregisterLifecycleEvent()
{
if (!s_lifecycleEventRefCnt.ContainsKey(Id))
{
return;
}
if (s_lifecycleEventRefCnt[Id] <= 0)
{
return;
}
if (_created != null || _paused != null || _resumed != null || _destroyed != null)
{
return;
}
if (s_lifecycleEventRefCnt[Id] == 1)
{
Interop.WidgetService.ErrorCode err = Interop.WidgetService.UnsetLifecycleEvent(Id, IntPtr.Zero);
switch (err)
{
case Interop.WidgetService.ErrorCode.InvalidParameter:
throw new InvalidOperationException("Invalid parameter at unmanaged code");
case Interop.WidgetService.ErrorCode.PermissionDenied:
throw new UnauthorizedAccessException();
case Interop.WidgetService.ErrorCode.NotExist:
throw new InvalidOperationException("Event handler is not exist");
case Interop.WidgetService.ErrorCode.NotSupported:
throw new NotSupportedException();
}
_onLifecycleCallback = null;
}
s_eventObjects.Remove(this);
s_lifecycleEventRefCnt[Id]--;
Log.Debug(LogTag, "unregister lifecycle cb " + Id + " [" + s_lifecycleEventRefCnt[Id] + "]");
}
