private void CheckAndProcessIdentifiableMember([NotNull] IMemberNode member)
{
var identifiable = member.Retrieve() as IIdentifiable;
if (identifiable == null)
{
return;
}
ProcessIdentifiableMembers(identifiable, member);
}
/// <inheritdoc/>
protected override bool ShouldVisitMemberTarget(IMemberNode member)
{
return(base.ShouldVisitMemberTarget(member) && !PropertyGraphDefinition.IsMemberTargetObjectReference(member, member.Retrieve()));
}
public override TContentType GetNodeValue()
{
var value = (TContentType)Node.Retrieve();
return(value);
}
/// <inheritdoc />
protected override void Initialize()
{
base.Initialize();
var invalidIndices = new Stack <int>();
for (var i = 0; i < Asset.ChildrenIds.Count; i++)
{
var childId = Asset.ChildrenIds[i];
var childScene = Session.GetAssetById(childId) as SceneViewModel;
if (childScene == null)
{
// Mark this id for deletion
invalidIndices.Push(i);
continue;
}
// We trust the child's Parent property. Let's check the relationship or fix it.
var parentValue = childScene.parentNode.Retrieve();
var parentReference = AttachedReferenceManager.GetAttachedReference(parentValue);
if (parentReference?.Id != Id)
{
// Mark this id for deletion
invalidIndices.Push(i);
// If the parent is already initialized and the child is connected, there is nothing to do
if (childScene.Parent?.isInitialized == true)
{
Debug.Assert(childScene.Parent.Children.Contains(childScene));
}
else
{
// Otherwise: fixup the parent child relationship
FixupParentChild(childScene, parentReference);
}
}
else
{
// Everything good
childScene.parent = this;
Children.Add(childScene);
}
}
foreach (var index in invalidIndices)
{
childrenNode.Remove(Asset.ChildrenIds[index], new NodeIndex(index));
}
if (Parent?.isInitialized == true)
{
Debug.Assert(Parent.Children.Contains(this));
}
else
{
var parentValue = parentNode.Retrieve();
var parentReference = AttachedReferenceManager.GetAttachedReference(parentValue);
FixupParentChild(this, parentReference);
}
Children.CollectionChanged += ChildrenCollectionChanged;
childrenNode.ItemChanged += ChildrenNodeItemChanged;
parentNode.ValueChanged += ParentNodeValueChanged;
isInitialized = true;
}
/// <summary>
/// Gets the current value of the graph node.
/// </summary>
/// <returns>The current value of the graph node.</returns>
/// <remarks>This method can be invoked from a property getter.</remarks>
public TContentType GetNodeValue()
{
var value = (TContentType)node.Retrieve();
return(value);
}