public static RuntimeSetterTransition RunTransition(RuntimeSetter setter, object from, object to)
{
var type = from?.GetType() ?? to?.GetType();
if (type == null)
{
return(null);
}
var pool = TransitionPools.GetValueOrDefault(type);
if (pool == null)
{
var animatorFactory = AnimatorFactoryProvider.GetAnimatorFactory(type);
if (animatorFactory == null)
{
return(null);
}
TransitionPools[type] = pool = new RuntimeTransitionPool(animatorFactory);
}
var runtimeTransition = pool.GeTransition();
runtimeTransition.ValueStore = setter.ActualValueStore;
runtimeTransition.Start(setter, from, to);
return(runtimeTransition);
}
public override void Attach(RuntimeSetter setter)
{
_target.GetDependencyPropertyService().AddExpandoPropertyListener(_property, this);
_value = _target.GetValue(_property);
_runtimeSetter = setter;
}
public void Start(RuntimeSetter setter, object from, object to)
{
var transition = setter.Transition;
_animator.Start = from;
_animator.End = to;
_animator.EasingFunction = transition.EasingFunction;
_animator.RelativeTime = 0;
var doubleAnimation = (DoubleAnimation)_storyboard.Children[0];
doubleAnimation.BeginTime = transition.BeginTime;
doubleAnimation.Duration = transition.Duration;
_storyboard.Begin();
_setter = setter;
}
private void OnCompleted(bool timeLineFinished)
{
if (_setter == null)
{
return;
}
if (timeLineFinished)
{
_animator.RelativeTime = 1.0;
}
var setter = _setter;
_setter = null;
setter.OnTransitionCompleted();
#if SILVERLIGHT
setter.EffectiveValue.Target.Dispatcher.BeginInvoke(_releaseAction);
#else
setter.EffectiveValue.Target.Dispatcher.BeginInvoke(_releaseAction, DispatcherPriority.Background);
#endif
}
protected override object ProvideValueCore(RuntimeSetter setter)
{
return(_value);
}
public override void Detach(RuntimeSetter setter)
{
_target.GetDependencyPropertyService().RemoveExpandoListener(_property, this);
_runtimeSetter = null;
}
protected abstract object ProvideValueCore(RuntimeSetter setter);
public sealed override object ProvideValue(RuntimeSetter setter)
{
return(_cache.ProvideValue(ProvideValueCore(setter), setter.EffectiveValue.Property.GetPropertyType()));
}
public abstract object ProvideValue(RuntimeSetter setter);
public virtual void Detach(RuntimeSetter setter)
{
}