private static void AnimatedSourceChanged(
DependencyObject o,
DependencyPropertyChangedEventArgs e)
{
if (!(o is Image imageControl))
{
return;
}
ImageSource oldValue = e.OldValue as ImageSource;
ImageSource newValue = e.NewValue as ImageSource;
if (oldValue == newValue)
{
return;
}
if (oldValue != null)
{
imageControl.Loaded -= new RoutedEventHandler(ImageBehavior.ImageControlLoaded);
imageControl.Unloaded -= new RoutedEventHandler(ImageBehavior.ImageControlUnloaded);
AnimationCache.DecrementReferenceCount(oldValue, ImageBehavior.GetRepeatBehavior(imageControl));
ImageBehavior.GetAnimationController(imageControl)?.Dispose();
imageControl.Source = (ImageSource)null;
}
if (newValue == null)
{
return;
}
imageControl.Loaded += new RoutedEventHandler(ImageBehavior.ImageControlLoaded);
imageControl.Unloaded += new RoutedEventHandler(ImageBehavior.ImageControlUnloaded);
if (!imageControl.IsLoaded)
{
return;
}
ImageBehavior.InitAnimationOrImage(imageControl);
}
private static void ImageControlLoaded(object sender, RoutedEventArgs e)
{
if (!(sender is Image imageControl))
{
return;
}
ImageBehavior.InitAnimationOrImage(imageControl);
}
private static void InitAnimationOrImage(Image imageControl)
{
ImageBehavior.SetAnimationController((DependencyObject)imageControl, (ImageAnimationController)null);
ImageBehavior.SetIsAnimationLoaded(imageControl, false);
BitmapSource source = ImageBehavior.GetAnimatedSource(imageControl) as BitmapSource;
bool flag1 = (DesignerProperties.GetIsInDesignMode((DependencyObject)imageControl) ? 1 : 0) == 0 | ImageBehavior.GetAnimateInDesignMode((DependencyObject)imageControl);
bool flag2 = ImageBehavior.IsLoadingDeferred(source);
if (source != null & flag1 && !flag2)
{
if (source.IsDownloading)
{
EventHandler handler = (EventHandler)null;
handler = (EventHandler)((sender, args) =>
{
source.DownloadCompleted -= handler;
ImageBehavior.InitAnimationOrImage(imageControl);
});
source.DownloadCompleted += handler;
imageControl.Source = (ImageSource)source;
return;
}
ObjectAnimationUsingKeyFrames animation = ImageBehavior.GetAnimation(imageControl, source);
if (animation != null)
{
if (animation.KeyFrames.Count > 0)
{
ImageBehavior.TryTwice((System.Action)(() => imageControl.Source = (ImageSource)animation.KeyFrames[0].Value));
}
else
{
imageControl.Source = (ImageSource)source;
}
ImageAnimationController animationController = new ImageAnimationController(imageControl, animation, ImageBehavior.GetAutoStart(imageControl));
ImageBehavior.SetAnimationController((DependencyObject)imageControl, animationController);
ImageBehavior.SetIsAnimationLoaded(imageControl, true);
imageControl.RaiseEvent(new RoutedEventArgs(ImageBehavior.AnimationLoadedEvent, (object)imageControl));
return;
}
}
imageControl.Source = (ImageSource)source;
if (source == null)
{
return;
}
ImageBehavior.SetIsAnimationLoaded(imageControl, true);
imageControl.RaiseEvent(new RoutedEventArgs(ImageBehavior.AnimationLoadedEvent, (object)imageControl));
}
private static void AnimateInDesignModeChanged(
DependencyObject o,
DependencyPropertyChangedEventArgs e)
{
if (!(o is Image imageControl))
{
return;
}
bool newValue = (bool)e.NewValue;
if (ImageBehavior.GetAnimatedSource(imageControl) == null || !imageControl.IsLoaded)
{
return;
}
if (newValue)
{
ImageBehavior.InitAnimationOrImage(imageControl);
}
else
{
imageControl.BeginAnimation(Image.SourceProperty, (AnimationTimeline)null);
}
}
private static void RepeatBehaviorChanged(
DependencyObject o,
DependencyPropertyChangedEventArgs e)
{
if (!(o is Image imageControl))
{
return;
}
ImageSource animatedSource = ImageBehavior.GetAnimatedSource(imageControl);
if (animatedSource == null)
{
return;
}
if (!object.Equals(e.OldValue, e.NewValue))
{
AnimationCache.DecrementReferenceCount(animatedSource, (RepeatBehavior)e.OldValue);
}
if (!imageControl.IsLoaded)
{
return;
}
ImageBehavior.InitAnimationOrImage(imageControl);
}