/// <inheritdoc/>
protected override void OnContentChanged([NotNull] MemberNodeChangeEventArgs args)
{
RelinkToOwnerPart((IAssetNode)args.Member, args.NewValue);
base.OnContentChanged(args);
}
private void BasePrefabChanged(object sender, MemberNodeChangeEventArgs e)
{
UpdateSourcePrefab();
}
private void ValueChanged(object sender, MemberNodeChangeEventArgs e)
{
UpdateLink();
}
private void ContentChanged(object sender, MemberNodeChangeEventArgs e)
{
Changed?.Invoke(sender, e);
}
private void ContentChanged(object sender, MemberNodeChangeEventArgs e)
{
// Make sure that we have item ids everywhere we're supposed to.
AssetCollectionItemIdHelper.GenerateMissingItemIds(e.Member.Retrieve());
// Clear the cached item identifier collection.
collectionItemIdentifiers = null;
var node = (AssetMemberNode)e.Member;
if (node.IsNonIdentifiableCollectionContent)
{
return;
}
// Create new ids for collection items
var baseNode = (AssetMemberNode)BaseContent;
var isOverriding = baseNode != null && !PropertyGraph.UpdatingPropertyFromBase;
var removedId = ItemId.Empty;
switch (e.ChangeType)
{
case ContentChangeType.ValueChange:
case ContentChangeType.CollectionUpdate:
break;
case ContentChangeType.CollectionAdd:
{
var collectionDescriptor = e.Member.Descriptor as CollectionDescriptor;
var itemIds = CollectionItemIdHelper.GetCollectionItemIds(e.Member.Retrieve());
// Compute the id we will add for this item
ItemId itemId;
if (baseNode != null && PropertyGraph.UpdatingPropertyFromBase)
{
var baseCollection = baseNode.Retrieve();
var baseIds = CollectionItemIdHelper.GetCollectionItemIds(baseCollection);
itemId = itemIds.FindMissingId(baseIds);
}
else
{
itemId = restoringId != ItemId.Empty ? restoringId : ItemId.New();
}
// Add the id to the proper location (insert or add)
if (collectionDescriptor != null)
{
if (e.Index != Index.Empty)
{
itemIds.Insert(e.Index.Int, itemId);
}
else
{
throw new InvalidOperationException("An item has been added to a collection that does not have a predictable Add. Consider using NonIdentifiableCollectionItemsAttribute on this collection.");
}
}
else
{
itemIds[e.Index.Value] = itemId;
}
}
break;
case ContentChangeType.CollectionRemove:
{
var collectionDescriptor = e.Member.Descriptor as CollectionDescriptor;
if (collectionDescriptor != null)
{
var itemIds = CollectionItemIdHelper.GetCollectionItemIds(e.Member.Retrieve());
removedId = itemIds.DeleteAndShift(e.Index.Int, isOverriding);
}
else
{
var itemIds = CollectionItemIdHelper.GetCollectionItemIds(e.Member.Retrieve());
removedId = itemIds.Delete(e.Index.Value, isOverriding);
}
}
break;
default:
throw new ArgumentOutOfRangeException();
}
// Don't update override if propagation from base is disabled.
if (PropertyGraph?.Container?.PropagateChangesFromBase == false)
{
return;
}
// Mark it as New if it does not come from the base
if (baseNode != null && !PropertyGraph.UpdatingPropertyFromBase && !ResettingOverride)
{
if (e.ChangeType != ContentChangeType.CollectionRemove)
{
if (e.Index == Index.Empty)
{
OverrideContent(!ResettingOverride);
}
else
{
OverrideItem(!ResettingOverride, e.Index);
}
}
else
{
OverrideDeletedItem(true, removedId);
}
}
}
