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);
}
}
}
