internal bool StartAnimationGroup(ICompositionAnimationBase grp, string target, ExpressionVariant finalValue)
{
if (grp is CompositionAnimation animation)
{
return(StartAnimationGroupPart(animation, target, finalValue));
}
if (grp is CompositionAnimationGroup group)
{
var matched = false;
foreach (var a in group.Animations)
{
if (a.Target == null)
{
throw new ArgumentException("Animation Target can't be null");
}
if (StartAnimationGroupPart(a, target, finalValue))
{
matched = true;
}
}
return(matched);
}
throw new ArgumentException();
}
public static T SetImplicitAnimation <T>(this T composition, string path, ICompositionAnimationBase animation)
where T : CompositionObject
{
if (composition.ImplicitAnimations == null)
{
composition.ImplicitAnimations = composition.Compositor.CreateImplicitAnimationCollection();
}
composition.ImplicitAnimations[path] = animation;
return(composition);
}
/// <summary>
/// Starts an animation group.
/// The StartAnimationGroup method on CompositionObject lets you start CompositionAnimationGroup.
/// All the animations in the group will be started at the same time on the object.
/// </summary>
public void StartAnimationGroup(ICompositionAnimationBase grp)
{
if (grp is CompositionAnimation animation)
{
if (animation.Target == null)
{
throw new ArgumentException("Animation Target can't be null");
}
StartAnimation(animation.Target, animation);
}
else if (grp is CompositionAnimationGroup group)
{
foreach (var a in group.Animations)
{
if (a.Target == null)
{
throw new ArgumentException("Animation Target can't be null");
}
StartAnimation(a.Target, a);
}
}
}
public ElementSet <T> SetImplicitHideAnimation(ICompositionAnimationBase animation) => ForEach(e => ElementCompositionPreview.SetImplicitHideAnimation(e, animation));
public static void SetHideAnimation(this UIElement element, ICompositionAnimationBase animation)
{
ElementCompositionPreview.SetImplicitHideAnimation(element, animation);
}
public static FrameworkElement SetImplicitAnimation(this FrameworkElement element, string path, ICompositionAnimationBase animation)
{
CompositionObject composition = ElementCompositionPreview.GetElementVisual(element);
if (composition.ImplicitAnimations == null)
{
composition.ImplicitAnimations = composition.Compositor.CreateImplicitAnimationCollection();
}
if (animation == null)
{
composition.ImplicitAnimations.Remove(path);
}
else
{
composition.ImplicitAnimations[path] = animation;
}
return(element);
}
public static FrameworkElement SetImplicitAnimation(this FrameworkElement element, string path, ICompositionAnimationBase animation)
{
SetImplicitAnimation(GetElementVisual(element), path, animation);
return element;
}