private void AssociatedObject_ManipulationDelta(object sender, ManipulationDeltaEventArgs e)
{
if (PreviewBehavior._isShowingPreview)
{
Point point = new Point(e.ManipulationOrigin.X, e.ManipulationOrigin.Y);
UIElement rootVisual = Application.Current.RootVisual;
FrameworkElement newHoveredElement = VisualTreeHelper.FindElementsInHostCoordinates(PreviewBehavior.GetHostCoordinates(e.ManipulationContainer.TransformToVisual(rootVisual).Transform(point)), rootVisual).FirstOrDefault <UIElement>() as FrameworkElement;
if (newHoveredElement != null)
{
BehaviorCollection behaviors1 = Interaction.GetBehaviors((DependencyObject)newHoveredElement);
PreviewBehavior previewBehavior = (behaviors1 != null ? behaviors1.FirstOrDefault <Behavior>((Func <Behavior, bool>)(b => b is PreviewBehavior)) : (Behavior)null) as PreviewBehavior;
if (previewBehavior == null && newHoveredElement.Parent != null)
{
BehaviorCollection behaviors2 = Interaction.GetBehaviors(newHoveredElement.Parent);
previewBehavior = (behaviors2 != null ? behaviors2.FirstOrDefault <Behavior>((Func <Behavior, bool>)(b => b is PreviewBehavior)) : (Behavior)null) as PreviewBehavior;
}
if (previewBehavior != null)
{
Image image = newHoveredElement as Image;
BitmapImage originalImage = (image != null ? image.Source : null) as BitmapImage;
this.ShowPreview(previewBehavior.PreviewUri, originalImage, previewBehavior.TopOffset);
this.SetHoveredElement(newHoveredElement);
}
}
e.Handled = true;
}
else
{
this.StopTimer();
}
}
static void OnEnableAnimationChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
Window w = d as Window;
BehaviorCollection col = Interaction.GetBehaviors(w);
WindowFadeAnimationBehavior b = (WindowFadeAnimationBehavior)col.FirstOrDefault(x => x is WindowFadeAnimationBehavior);
col.Remove(b);
if ((bool)e.NewValue)
{
col.Add(new WindowFadeAnimationBehavior());
}
}
public static void AttachTo(DependencyObject obj)
{
if (!(obj is FrameworkElement || obj is FrameworkContentElement))
{
return;
}
BehaviorCollection bCol = Interaction.GetBehaviors(obj);
ParameterAndParentViewModelSyncBehavior b =
(ParameterAndParentViewModelSyncBehavior)bCol.FirstOrDefault(x => x is ParameterAndParentViewModelSyncBehavior);
if (b != null)
{
return;
}
bCol.Add(new ParameterAndParentViewModelSyncBehavior());
}
/// <summary>
/// This adds the behavior to an image through an attached property.
/// </summary>
/// <param name="dpo"></param>
/// <param name="e"></param>
private static void OnIsActiveChanged(DependencyObject dpo, DependencyPropertyChangedEventArgs e)
{
BehaviorCollection bc = Interaction.GetBehaviors(dpo);
if (Convert.ToBoolean(e.NewValue))
{
bc.Add(new AutoDisabledImageBehavior());
}
else
{
var behavior = bc.FirstOrDefault(beh => beh.GetType() == typeof(AutoDisabledImageBehavior));
if (behavior != null)
{
bc.Remove(behavior);
}
}
}