void SetCompositionFocus(bool IsGotFocus)
{
if (CompositionBrush == null)
{
return;
}
if (BackgroundSource == AcrylicBackgroundSource.Backdrop)
{
return;
}
var tintOpacity = Convert.ToSingle(TintOpacity);
if (tintOpacity < 0f)
{
tintOpacity = 0f;
}
if (tintOpacity > 1f)
{
tintOpacity = 1f;
}
HostOpacityZeroAnimation.SetScalarParameter("TintOpacity", tintOpacity);
TintOpacityFillAnimation.SetScalarParameter("TintOpacity", tintOpacity);
if (IsGotFocus)
{
CompositionBrush = Brush;
TintOpacityFillAnimation.Direction = AnimationDirection.Reverse;
HostOpacityZeroAnimation.Direction = AnimationDirection.Reverse;
TintToFallBackAnimation.Direction = AnimationDirection.Reverse;
CompositionBrush.StartAnimation("arithmetic.Source2Amount", TintOpacityFillAnimation);
CompositionBrush.StartAnimation("arithmetic.Source1Amount", HostOpacityZeroAnimation);
CompositionBrush.StartAnimation("tintcolor.Color", TintToFallBackAnimation);
}
else if (CompositionBrush == Brush)
{
var scopedBatch = compositor.CreateScopedBatch(CompositionBatchTypes.Animation);
TintOpacityFillAnimation.Direction = AnimationDirection.Normal;
HostOpacityZeroAnimation.Direction = AnimationDirection.Normal;
TintToFallBackAnimation.Direction = AnimationDirection.Normal;
CompositionBrush.StartAnimation("arithmetic.Source2Amount", TintOpacityFillAnimation);
CompositionBrush.StartAnimation("arithmetic.Source1Amount", HostOpacityZeroAnimation);
CompositionBrush.StartAnimation("tintcolor.Color", TintToFallBackAnimation);
scopedBatch.Completed += (s, a) => CompositionBrush = compositor.CreateColorBrush(FallbackColor);
scopedBatch.End();
}
else
{
CompositionBrush = compositor.CreateColorBrush(FallbackColor);
}
}