public void Apply(FrameworkElement target, BaseValueSource valueSource)
{
INameScope nameScope = valueSource == BaseValueSource.Local ? NameScope.GetContainingNameScope(target) : NameScope.GetTemplateNameScope(target);
object layerOwner = valueSource == BaseValueSource.Local ? null : target.TemplatedParent;
Begin(target, nameScope, layerOwner);
}
public void ContainingNameScopeTest()
{
FrameworkElement logicalParent = new FrameworkElement();
FrameworkElement visualParent = new FrameworkElement();
FrameworkElement child = new FrameworkElement();
NameScope logicalNameScope = new NameScope();
NameScope.SetNameScope(logicalParent, logicalNameScope);
NameScope visualNameScope = new NameScope();
NameScope.SetNameScope(visualParent, visualNameScope);
Freezable value = new Freezable();
Freezable subValue = new Freezable();
// visual / context tree: logicalParent -> visualParent -> child -> value -> subValue
logicalParent.AddVisualChild(visualParent);
visualParent.AddVisualChild(child);
child.SetValue(ValueProperty, value);
value.SetValue(ValueProperty, subValue);
// logical tree: logicalParent -> child
logicalParent.AddLogicalChild(child);
Assert.AreEqual(logicalNameScope, NameScope.GetContainingNameScope(subValue));
}
public override void Apply(FrameworkElement target, BaseValueSource valueSource)
{
BeginStoryboard beginStoryboard = GetBeginStoryboard(target);
if (beginStoryboard != null)
{
INameScope nameScope = valueSource == BaseValueSource.Local ? NameScope.GetContainingNameScope(target) : NameScope.GetTemplateNameScope(target);
object layerOwner = valueSource == BaseValueSource.Local ? null : target.TemplatedParent;
beginStoryboard.Remove(target, nameScope, layerOwner);
}
}
private static object GetRelativeSource(DependencyObject target, RelativeSource relativeSource, string elementName)
{
if (!elementName.IsNullOrEmpty())
{
INameScope nameScope = NameScope.GetContainingNameScope(target);
return(nameScope != null?nameScope.FindName(elementName) : null);
}
if (relativeSource == null || relativeSource.Mode == RelativeSourceMode.Self)
{
return(target);
}
if (relativeSource.Mode == RelativeSourceMode.TemplatedParent)
{
return(target is FrameworkElement ? ((FrameworkElement)target).TemplatedParent : null);
}
if (relativeSource.Mode == RelativeSourceMode.FindAncestor)
{
if (!(target is Visual))
{
return(null);
}
Visual visual = (target as Visual).VisualParent;
int level = relativeSource.AncestorLevel - 1;
while (visual != null && (level > 0 || relativeSource.AncestorType != null && !relativeSource.AncestorType.IsInstanceOfType(visual)))
{
if (relativeSource.AncestorType == null || relativeSource.AncestorType.IsInstanceOfType(visual))
{
level--;
}
visual = visual.VisualParent;
}
return(visual);
}
throw new Granular.Exception("RelativeSourceMode \"{0}\" is unexpected", relativeSource.Mode);
}
public void Begin(FrameworkElement containingObject, INameScope nameScope = null, HandoffBehavior handoffBehavior = HandoffBehavior.SnapshotAndReplace, object layerOwner = null)
{
Stop(containingObject);
TimelineClock clock = CreateClock();
clock.Begin(((IAnimatable)containingObject).RootClock);
clocks[containingObject] = clock;
ListDictionary <TargetKey, AnimationTimelineClock> targets = GetAnimationClocksTargets(clock, containingObject, nameScope ?? NameScope.GetContainingNameScope(containingObject));
foreach (TargetKey target in targets.GetKeys())
{
target.Target.ApplyAnimationClocks(target.TargetProperty, targets.GetValues(target), handoffBehavior, layerOwner);
}
}
public void Remove(FrameworkElement containingObject, INameScope nameScope = null, object layerOwner = null)
{
Stop(containingObject);
TimelineClock clock;
if (clocks.TryGetValue(containingObject, out clock))
{
ListDictionary <TargetKey, AnimationTimelineClock> targets = GetAnimationClocksTargets(clock, containingObject, nameScope ?? NameScope.GetContainingNameScope(containingObject));
foreach (TargetKey target in targets.GetKeys())
{
target.Target.RemoveAnimationClocks(target.TargetProperty, targets.GetValues(target), layerOwner);
}
clocks.Remove(containingObject);
}
}
protected BeginStoryboard GetBeginStoryboard(FrameworkElement target)
{
INameScope nameScope = NameScope.GetContainingNameScope(target);
return(nameScope != null?nameScope.FindName(BeginStoryboardName) as BeginStoryboard : null);
}
private static object GetScopeElement(DependencyObject target, string elementName)
{
INameScope nameScope = NameScope.GetContainingNameScope(target);
return(nameScope != null?nameScope.FindName(elementName) : ObservableValue.UnsetValue);
}