internal static AnimationContext PlayIfPossible(this AnimationContext target, Control hostControl)
{
if (AnimationManager.IsGlobalAnimationEnabled && AnimationManager.GetIsAnimationEnabled(hostControl))
{
target.Instance.Begin();
}
return(target);
}
/// <summary>
/// Plays an animation for the given control and invokes the callback on completion.
/// </summary>
/// <param name="target">The control for which to play the animation.</param>
/// <param name="animationName">The name of the animation.</param>
/// <param name="completeCallback">The callback to be called. The callback is always called.</param>
/// <param name="args">Optional oarameters for the animation, can be provided by the control.</param>
/// <returns>True if an aimation actually played, false otherwise.</returns>
public static bool Play(FrameworkElement target, string animationName, Action completeCallback, params object[] args)
{
bool animationsEnabled = AnimationManager.GetIsAnimationEnabled(target) && AnimationManager.IsGlobalAnimationEnabled;
if (!animationsEnabled || VisualTreeHelper.GetChildrenCount(target) <= 0)
{
BeginInvokeCallback(completeCallback, target);
return(false);
}
AnimationSelectorBase selector = null;
RadAnimation animation = null;
////FrameworkElement firstChild = VisualTreeHelper.GetChild(target, 0) as FrameworkElement;
////Storyboard storyboard = firstChild.Resources[animationName] as Storyboard;
Storyboard storyboard = target.Resources[animationName] as Storyboard;
if (storyboard == null)
{
selector = AnimationManager.GetAnimationSelector(target);
if (selector == null)
{
BeginInvokeCallback(completeCallback, target);
return(false);
}
animation = selector.SelectAnimation(target, animationName);
if (animation == null)
{
BeginInvokeCallback(completeCallback, target);
return(false);
}
storyboard = animation.CreateAnimation(target);
if (storyboard == null)
{
BeginInvokeCallback(completeCallback, target);
return(false);
}
else
{
storyboard.Completed += new EventHandler(OnStoryboardCompleted);
AnimationManager.SetAnimation(storyboard, animation);
target.Resources.Add(animationName, storyboard);
////firstChild.Resources.Add(animationName, storyboard);
}
}
RadAnimation sourceAnimation = AnimationManager.GetAnimation(storyboard);
AddCallback(storyboard, new Action(() => storyboard.Stop()));
if (completeCallback != null)
{
AddCallback(storyboard, completeCallback);
}
if (storyboard.Children.Count > 0)
{
sourceAnimation.UpdateAnimation(target, storyboard, args);
}
storyboard.Begin();
return(true);
}