void source_ContentRendered(object sender, EventArgs e)
{
source.ContentRendered -= source_ContentRendered;
var ao = AssociatedObject;
ao.RenderTransform = new TranslateTransform();
ao.BeginStoryboard(AnimationProducer.GetAnimation(InAnimation, true, AnimationTimeMS, EasingFunction));
}
void AnimationBehavior_RequestOutAnimation()
{
if (source != null && source.CompositionTarget != null)
{
_story = AnimationProducer.GetAnimation(OutAnimation, false, AnimationTimeMS, EasingFunction);
_story.Completed += story_Completed;
AssociatedObject.BeginStoryboard(_story);
}
else // there is no window anymore, so we'll say goodbye silently
{
Detach();
}
}