private static void DoBlurTansition(
IBlurParams blurParams,
FrameworkElement target,
RoutedEventHandler onLoaded,
Visibility?visibility)
{
var reverse = Transitionz.IsVisibilityHidden(visibility);
var blurEffect = new BlurEffect()
{
Radius = reverse ? blurParams.To : blurParams.From
};
target.Effect = blurEffect;
if (onLoaded != null && Transitionz.HasFlag(blurParams.TransitionOn, TransitionOn.Once))
{
target.Loaded -= onLoaded;
}
var a = new DoubleAnimation
{
From = reverse ? blurParams.To : blurParams.From,
To = reverse ? blurParams.From : blurParams.To,
FillBehavior = blurParams.FillBehavior,
BeginTime = TimeSpan.FromMilliseconds(blurParams.BeginTime),
Duration = new Duration(TimeSpan.FromMilliseconds(blurParams.Duration)),
EasingFunction = reverse ? (blurParams.ReverseEase ?? blurParams.Ease) : blurParams.Ease,
AutoReverse = blurParams.AutoReverse,
};
// Directly adding RepeatBehavior to constructor breaks existing animations, so only add it if properly defined
if (blurParams.RepeatBehavior == RepeatBehavior.Forever ||
blurParams.RepeatBehavior.HasDuration ||
(blurParams.RepeatBehavior.HasDuration && blurParams.RepeatBehavior.Count > 0))
{
a.RepeatBehavior = blurParams.RepeatBehavior;
}
if (blurParams.To == 0.0)
{
a.Completed += (_, __) => target.Effect = null;
}
if (visibility.HasValue)
{
a.Completed += (_, __) => target.Visibility = visibility.Value;
}
a.SetDesiredFrameRate(24);
var storyboard = new Storyboard();
storyboard.Children.Add(a);
Storyboard.SetTarget(a, ((BlurEffect)target.Effect));
Storyboard.SetTargetProperty(a, new PropertyPath(BlurEffect.RadiusProperty));
FreezeHelper.SetFreeze(storyboard, true);
storyboard.Begin();
}
private static void DoTranslateTransition(ITranslateParams transitionParams, FrameworkElement target, RoutedEventHandler onLoaded, Visibility?visibility)
{
if (onLoaded != null && Transitionz.HasFlag(transitionParams.TransitionOn, TransitionOn.Once))
{
target.Loaded -= onLoaded;
}
var reverse = Transitionz.IsVisibilityHidden(visibility);
var translateTransform = new TranslateTransform()
{
X = reverse ? transitionParams.To.X : transitionParams.From.X,
Y = reverse ? transitionParams.To.Y : transitionParams.From.Y,
};
target.RenderTransform = translateTransform;
var x = new DoubleAnimation
{
From = reverse ? transitionParams.To.X : transitionParams.From.X,
To = reverse ? transitionParams.From.X : transitionParams.To.X,
FillBehavior = transitionParams.FillBehavior,
BeginTime = TimeSpan.FromMilliseconds(transitionParams.BeginTime),
Duration = new Duration(TimeSpan.FromMilliseconds(transitionParams.Duration)),
EasingFunction = reverse ? (transitionParams.ReverseEase ?? transitionParams.Ease) : transitionParams.Ease,
AutoReverse = transitionParams.AutoReverse,
};
var y = new DoubleAnimation
{
From = reverse ? transitionParams.To.Y : transitionParams.From.Y,
To = reverse ? transitionParams.From.Y : transitionParams.To.Y,
FillBehavior = transitionParams.FillBehavior,
BeginTime = TimeSpan.FromMilliseconds(transitionParams.BeginTime),
Duration = new Duration(TimeSpan.FromMilliseconds(transitionParams.Duration)),
EasingFunction = reverse ? (transitionParams.ReverseEase ?? transitionParams.Ease) : transitionParams.Ease,
AutoReverse = transitionParams.AutoReverse,
};
// Directly adding RepeatBehavior to constructor breaks existing animations, so only add it if properly defined
if (transitionParams.RepeatBehavior == RepeatBehavior.Forever ||
transitionParams.RepeatBehavior.HasDuration ||
(transitionParams.RepeatBehavior.HasDuration && transitionParams.RepeatBehavior.Count > 0))
{
x.RepeatBehavior = transitionParams.RepeatBehavior;
y.RepeatBehavior = transitionParams.RepeatBehavior;
}
if (visibility.HasValue)
{
x.Completed += (_, __) => target.Visibility = visibility.Value;
}
x.SetDesiredFrameRate(24);
y.SetDesiredFrameRate(24);
(target.RenderTransform).BeginAnimation(TranslateTransform.XProperty, x);
(target.RenderTransform).BeginAnimation(TranslateTransform.YProperty, y);
}
private static void OnVisibilityChangedForTranslate(object sender, EventArgs e)
{
var element = ((FrameworkElement)((PropertyChangeNotifier)sender).PropertySource);
var visibility = Transitionz.GetVisibility(element);
if (visibility == Visibility.Visible)
{
element.Visibility = Visibility.Visible;
}
element.BeginInvoke(new Action(() => DoTranslateTransition(GetTranslate(element), element, null, visibility)), DispatchPriority.DataBind);
}
private static void OnVisibilityChangedForBlur(object sender, EventArgs e)
{
var element = ((FrameworkElement)((PropertyChangeNotifier)sender).PropertySource);
var visibility = Transitionz.GetVisibility(element);
if (visibility == Visibility.Visible)
{
element.Visibility = Visibility.Visible;
}
DoBlurTansition(GetBlur(element), element, null, visibility);
}
private static void DoScaleTansition(
IScaleParams scaleParams,
FrameworkElement target,
RoutedEventHandler onLoaded,
Visibility?visibility)
{
var reverse = Transitionz.IsVisibilityHidden(visibility);
var scaleTransform = new ScaleTransform()
{
ScaleX = reverse ? scaleParams.To.X : scaleParams.From.X,
ScaleY = reverse ? scaleParams.To.Y : scaleParams.From.Y
};
target.LayoutTransform = scaleTransform;
if (onLoaded != null && Transitionz.HasFlag(scaleParams.TransitionOn, TransitionOn.Once))
{
target.Loaded -= onLoaded;
}
if (Math.Abs(scaleParams.From.X - scaleParams.To.X) > 0.001)
{
var x = new DoubleAnimation
{
From = reverse ? scaleParams.To.X : scaleParams.From.X,
To = reverse ? scaleParams.From.X : scaleParams.To.X,
FillBehavior = scaleParams.FillBehavior,
BeginTime = TimeSpan.FromMilliseconds(scaleParams.BeginTime),
Duration = new Duration(TimeSpan.FromMilliseconds(scaleParams.Duration)),
EasingFunction = reverse ? (scaleParams.ReverseEase ?? scaleParams.Ease) : scaleParams.Ease,
AutoReverse = scaleParams.AutoReverse,
};
x.SetDesiredFrameRate(24);
scaleTransform.BeginAnimation(ScaleTransform.ScaleXProperty, x);
}
if (Math.Abs(scaleParams.From.Y - scaleParams.To.Y) > 0.001)
{
var y = new DoubleAnimation
{
From = reverse ? scaleParams.To.Y : scaleParams.From.Y,
To = reverse ? scaleParams.From.Y : scaleParams.To.Y,
FillBehavior = scaleParams.FillBehavior,
BeginTime = TimeSpan.FromMilliseconds(scaleParams.BeginTime),
Duration = new Duration(TimeSpan.FromMilliseconds(scaleParams.Duration)),
EasingFunction = reverse ? (scaleParams.ReverseEase ?? scaleParams.Ease) : scaleParams.Ease,
AutoReverse = scaleParams.AutoReverse,
};
y.SetDesiredFrameRate(24);
scaleTransform.BeginAnimation(ScaleTransform.ScaleYProperty, y);
}
}
private static void DoOpacityTransition(
IOpacityParams transitionParams,
FrameworkElement target,
RoutedEventHandler onLoaded,
Visibility?visibility)
{
var reverse = Transitionz.IsVisibilityHidden(visibility);
target.Opacity = reverse ? transitionParams.To : transitionParams.From;
if (onLoaded != null && Transitionz.HasFlag(transitionParams.TransitionOn, TransitionOn.Once))
{
target.Loaded -= onLoaded;
}
var a = new DoubleAnimation
{
From = reverse ? transitionParams.To : transitionParams.From,
To = reverse ? transitionParams.From : transitionParams.To,
FillBehavior = transitionParams.FillBehavior,
BeginTime = TimeSpan.FromMilliseconds(transitionParams.BeginTime),
Duration = new Duration(TimeSpan.FromMilliseconds(transitionParams.Duration)),
EasingFunction = reverse ? (transitionParams.ReverseEase ?? transitionParams.Ease) : transitionParams.Ease,
AutoReverse = transitionParams.AutoReverse,
};
// Directly adding RepeatBehavior to constructor breaks existing animations, so only add it if properly defined
if (transitionParams.RepeatBehavior == RepeatBehavior.Forever ||
transitionParams.RepeatBehavior.HasDuration ||
(transitionParams.RepeatBehavior.HasDuration && transitionParams.RepeatBehavior.Count > 0))
{
a.RepeatBehavior = transitionParams.RepeatBehavior;
}
a.SetDesiredFrameRate(24);
var storyboard = new Storyboard();
storyboard.Children.Add(a);
Storyboard.SetTarget(a, target);
Storyboard.SetTargetProperty(a, new PropertyPath(UIElement.OpacityProperty));
a.Completed += (_, __) =>
{
if (visibility.HasValue)
{
target.Visibility = visibility.Value;
}
target.Opacity = reverse ? transitionParams.From : transitionParams.To;
storyboard.Stop();
};
storyboard.Begin();
}
private void UpdateTransition()
{
if (backgroundElement == null)
{
return;
}
Transitionz.SetOpacity(backgroundElement, new OpacityParams()
{
BeginTime = 0,
Duration = Duration,
Ease = Easing,
From = FromOpacity,
To = ToOpacity,
TransitionOn = TransitionOn.DataContextChanged | TransitionOn.Once
});
}
private static void OnTranslateParamsChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var oldTransitionParams = e.OldValue as ITranslateParams;
var newTransitionParams = e.NewValue as ITranslateParams;
var target = d as FrameworkElement;
if (target == null)
{
return;
}
if (oldTransitionParams != null)
{
target.Loaded -= OnLoadedForTranslate;
target.DataContextChanged -= OnDataContextChangedForTranslate;
Transitionz.RemoveVisibilityChangedHandler(target, OnVisibilityChangedForTranslate);
}
if (newTransitionParams != null)
{
var translateTransform = new TranslateTransform()
{
X = newTransitionParams.From.X, Y = newTransitionParams.From.Y
};
target.RenderTransform = translateTransform;
if (Transitionz.HasFlag(newTransitionParams.TransitionOn, TransitionOn.Loaded) || Transitionz.HasFlag(newTransitionParams.TransitionOn, TransitionOn.Once))
{
target.Loaded += OnLoadedForTranslate;
if (target.IsLoaded())
{
OnLoadedForTranslate(target, null);
}
}
if (Transitionz.HasFlag(newTransitionParams.TransitionOn, TransitionOn.DataContextChanged))
{
target.DataContextChanged += OnDataContextChangedForTranslate;
}
if (Transitionz.HasFlag(newTransitionParams.TransitionOn, TransitionOn.Visibility))
{
Transitionz.AddVisibilityChangedHandler(target, OnVisibilityChangedForTranslate);
}
}
}
private static void OnLayoutScaleParamsChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var oldTransitionParams = e.OldValue as IScaleParams;
var newTransitionParams = e.NewValue as IScaleParams;
var target = d as FrameworkElement;
if (target == null)
{
return;
}
if (oldTransitionParams != null)
{
target.Loaded -= Transitionz.OnLoadedForScale;
target.DataContextChanged -= Transitionz.OnDataContextChangedForScale;
}
if (newTransitionParams != null)
{
if (Transitionz.HasFlag(newTransitionParams.TransitionOn, TransitionOn.Loaded))
{
target.Loaded += OnLoadedForScale;
if (target.IsLoaded())
{
OnLoadedForScale(target, null);
}
}
if (Transitionz.HasFlag(newTransitionParams.TransitionOn, TransitionOn.DataContextChanged))
{
target.DataContextChanged += OnDataContextChangedForScale;
}
if (Transitionz.HasFlag(newTransitionParams.TransitionOn, TransitionOn.Visibility))
{
Transitionz.AddVisibilityChangedHandler(target, OnVisibilityChangedForScale);
}
}
}
private static void OnOpacityChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var oldTransitionParams = e.OldValue as IOpacityParams;
var newTransitionParams = e.NewValue as IOpacityParams;
var target = d as FrameworkElement;
if (target == null)
{
return;
}
if (oldTransitionParams != null)
{
target.Loaded -= OnLoadedForOpacity;
target.DataContextChanged -= OnDataContextChangedForOpacity;
Transitionz.RemoveVisibilityChangedHandler(target, OnVisibilityChangedForOpacity);
}
if (newTransitionParams != null)
{
if (Transitionz.HasFlag(newTransitionParams.TransitionOn, TransitionOn.Loaded) || Transitionz.HasFlag(newTransitionParams.TransitionOn, TransitionOn.Once))
{
target.Opacity = newTransitionParams.From;
target.Loaded += OnLoadedForOpacity;
if (target.IsLoaded())
{
OnLoadedForOpacity(target, null);
}
}
if (Transitionz.HasFlag(newTransitionParams.TransitionOn, TransitionOn.DataContextChanged))
{
target.DataContextChanged += OnDataContextChangedForOpacity;
}
if (Transitionz.HasFlag(newTransitionParams.TransitionOn, TransitionOn.Visibility))
{
Transitionz.AddVisibilityChangedHandler(target, OnVisibilityChangedForOpacity);
}
}
}
