private static void AnimatedSourceChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
Image image = o as Image;
if (image != null)
{
ImageSource oldValue = e.OldValue as ImageSource;
ImageSource newValue = e.NewValue as ImageSource;
if (oldValue != null)
{
image.Loaded -= new RoutedEventHandler(ImageBehavior.ImageControlLoaded);
image.Unloaded -= new RoutedEventHandler(ImageBehavior.ImageControlUnloaded);
AnimationCache.DecrementReferenceCount(oldValue, GetRepeatBehavior(image));
ImageAnimationController animationController = GetAnimationController(image);
if (animationController != null)
{
animationController.Dispose();
}
image.Source = null;
}
if (newValue != null)
{
image.Loaded += new RoutedEventHandler(ImageBehavior.ImageControlLoaded);
image.Unloaded += new RoutedEventHandler(ImageBehavior.ImageControlUnloaded);
if (image.IsLoaded)
{
InitAnimationOrImage(image);
}
}
}
}
private static void InitAnimationOrImage(Image imageControl)
{
ImageAnimationController animationController = GetAnimationController(imageControl);
if (animationController != null)
{
animationController.Dispose();
}
SetAnimationController(imageControl, null);
SetIsAnimationLoaded(imageControl, false);
BitmapSource source = GetAnimatedSource(imageControl) as BitmapSource;
bool animateInDesignMode = GetAnimateInDesignMode(imageControl);
bool flag3 = !DesignerProperties.GetIsInDesignMode(imageControl) || animateInDesignMode;
bool flag4 = IsLoadingDeferred(source);
if ((source != null) && (flag3 && !flag4))
{
Action action = null;
if (source.IsDownloading)
{
EventHandler handler = null;
handler = delegate(object sender, EventArgs args) {
source.DownloadCompleted -= handler;
InitAnimationOrImage(imageControl);
};
source.DownloadCompleted += handler;
imageControl.Source = source;
return;
}
ObjectAnimationUsingKeyFrames animation = GetAnimation(imageControl, source);
if (animation != null)
{
if (animation.KeyFrames.Count <= 0)
{
imageControl.Source = source;
}
else
{
if (action == null)
{
action = () => imageControl.Source = (ImageSource)animation.KeyFrames[0].Value;
}
TryTwice(action);
}
animationController = new ImageAnimationController(imageControl, animation, GetAutoStart(imageControl));
SetAnimationController(imageControl, animationController);
SetIsAnimationLoaded(imageControl, true);
imageControl.RaiseEvent(new RoutedEventArgs(AnimationLoadedEvent, imageControl));
return;
}
}
imageControl.Source = source;
if (source != null)
{
SetIsAnimationLoaded(imageControl, true);
imageControl.RaiseEvent(new RoutedEventArgs(AnimationLoadedEvent, imageControl));
}
}
private static void ImageControlUnloaded(object sender, RoutedEventArgs e)
{
Image image = sender as Image;
if (image != null)
{
ImageSource animatedSource = GetAnimatedSource(image);
if (animatedSource != null)
{
AnimationCache.DecrementReferenceCount(animatedSource, GetRepeatBehavior(image));
}
ImageAnimationController animationController = GetAnimationController(image);
if (animationController != null)
{
animationController.Dispose();
}
}
}
