private void HandleBindingValueChanged(object sender, BindingChangedEventArgs e)
{
object value = this.listener.Value;
FrameworkElement target = this.AssociatedObject;
#if SILVERLIGHT
FluidBindProperty.AnimateTo(target, this.PropertyName, value, this.Duration, this.Ease, false);
#else
FluidBindProperty.AnimateTo(target, this.PropertyName, value, this.Duration, false);
#endif
}
/// <summary>
/// Invokes this action.
/// </summary>
/// <param name="parameter"></param>
protected override void Invoke(object parameter)
{
object currentValue = this.listener.Value;
if (currentValue != null)
{
object newValue = ConverterHelper.ConvertToType(this.Value, currentValue.GetType());
if (this.Increment)
{
newValue = FluidBindProperty.Add(currentValue, newValue);
}
this.listener.Value = newValue;
}
else
{
this.listener.Value = this.Value;
}
}
internal static void AnimateTo(FrameworkElement target, string propertyName, object value, Duration duration, bool increment)
{
#endif
if (!string.IsNullOrEmpty(propertyName) && target != null)
{
PropertyInfo property = target.GetType().GetProperty(propertyName);
if (property == null)
{
throw new ArgumentException("Cannot find property " + propertyName + " on object " + target.GetType().Name);
}
if (!property.CanWrite)
{
throw new ArgumentException("Property is read-only " + propertyName + " on object " + target.GetType().Name);
}
object toValue = value;
TypeConverter typeConverter = ConverterHelper.GetTypeConverter(property.PropertyType);
Exception innerException = null;
try {
if (((typeConverter != null) && (value != null)) && typeConverter.CanConvertFrom(value.GetType()))
{
toValue = typeConverter.ConvertFrom(value);
}
object fromValue = property.GetValue(target, null);
if (increment)
{
toValue = FluidBindProperty.Add(toValue, fromValue);
}
if (duration.HasTimeSpan)
{
Timeline timeline;
if ((typeof(FrameworkElement).IsAssignableFrom(target.GetType()) && ((propertyName == "Width") || (propertyName == "Height"))) && double.IsNaN((double)fromValue))
{
if (propertyName == "Width")
{
fromValue = target.ActualWidth;
}
else
{
fromValue = target.ActualHeight;
}
}
Storyboard storyboard = new Storyboard();
if (typeof(double).IsAssignableFrom(property.PropertyType))
{
DoubleAnimation animation = new DoubleAnimation();
animation.From = new double?((double)fromValue);
animation.To = new double?((double)toValue);
#if SILVERLIGHT
animation.EasingFunction = ease;
#endif
timeline = animation;
}
else if (typeof(Color).IsAssignableFrom(property.PropertyType))
{
ColorAnimation animation2 = new ColorAnimation();
animation2.From = new Color?((Color)fromValue);
animation2.To = new Color?((Color)toValue);
#if SILVERLIGHT
animation2.EasingFunction = ease;
#endif
timeline = animation2;
}
else if (typeof(Point).IsAssignableFrom(property.PropertyType))
{
PointAnimation animation3 = new PointAnimation();
animation3.From = new Point?((Point)fromValue);
animation3.To = new Point?((Point)toValue);
#if SILVERLIGHT
animation3.EasingFunction = ease;
#endif
timeline = animation3;
}
else
{
ObjectAnimationUsingKeyFrames frames = new ObjectAnimationUsingKeyFrames();
DiscreteObjectKeyFrame frame = new DiscreteObjectKeyFrame();
frame.KeyTime = KeyTime.FromTimeSpan(new TimeSpan(0L));
frame.Value = fromValue;
DiscreteObjectKeyFrame frame2 = new DiscreteObjectKeyFrame();
frame2.KeyTime = KeyTime.FromTimeSpan(duration.TimeSpan);
frame2.Value = toValue;
frames.KeyFrames.Add(frame);
frames.KeyFrames.Add(frame2);
timeline = frames;
}
timeline.Duration = duration;
storyboard.Children.Add(timeline);
Storyboard.SetTarget(storyboard, target);
Storyboard.SetTargetProperty(storyboard, new PropertyPath(property.Name, new object[0]));
storyboard.Begin();
}
else
{
property.SetValue(target, toValue, new object[0]);
}
}
catch (FormatException exception2) {
innerException = exception2;
}
catch (ArgumentException exception3) {
innerException = exception3;
}
catch (MethodAccessException exception4) {
innerException = exception4;
}
if (innerException != null)
{
throw new ArgumentException(innerException.Message);
}
}
}
