Lousy.Mon.EventToken.PassOn C# (CSharp) Method

        public EventToken PassOn(EventToken successor)
        {
            // Unregister for the predecessor's completion events
            if (_Animation != null)
            {
                _Animation.Completed -= AnimationEventHandler;
            }

            // Hand off the children to the successor
            if (_Children != null)
            {
                foreach (IAnimator anim in _Children.Keys)
                {
                    successor.AddChildAnimator(anim, _Children[anim]);
                }

                _Children.Clear();
            }

            return successor;
        }

        /// <summary>
        /// <para>Executes the user code after a specified duration.</para>
        /// <para>Note: This method produces a working EventToken</para>
        /// </summary>
        /// <param name="duration"></param>
        /// <param name="timeType"></param>
        /// <returns>A token representing the animation</returns>
        public override EventToken After(double duration, OrSo timeType)
        {
            DispatcherTimer timer       = new DispatcherTimer();
            EventToken      placeholder = EventToken.PlaceholderToken();

            timer.Interval = GetTimeSpan(duration, timeType);
            timer.Tick    += (s, e) =>
            {
                timer.Stop();
                placeholder.PassOn(Now());
            };
            timer.Start();

            return(placeholder);
        }