private protected virtual bool IsNodeTreeBlockListValid(Node node, string propertyName)
{
NodeTreeHelperBlockList.GetChildBlockList(node, propertyName, out IList <NodeTreeBlock> ChildBlockList);
Debug.Assert(ChildBlockList != null);
bool IsValid = true;
if (ChildBlockList.Count == 0)
{
IsValid &= InvariantFailed(IsEmptyBlockListValid(node, propertyName));
}
for (int BlockIndex = 0; BlockIndex < ChildBlockList.Count; BlockIndex++)
{
NodeTreeBlock Block = ChildBlockList[BlockIndex];
Debug.Assert(Block.NodeList.Count > 0);
for (int Index = 0; Index < Block.NodeList.Count; Index++)
{
Node ChildNode = Block.NodeList[Index];
Debug.Assert(ChildNode != null);
IsValid &= InvariantFailed(IsNodeTreeValid(ChildNode));
}
}
return(IsValid);
}
private protected virtual void BrowseChildrenOfNode(IReadOnlyBrowseContext browseNodeContext, INode node)
{
IList <string> PropertyNames = NodeTreeHelper.EnumChildNodeProperties(node);
foreach (string PropertyName in PropertyNames)
{
INode ChildNode;
Type ChildInterfaceType, ChildNodeType;
IReadOnlyList <INode> ChildNodeList;
IReadOnlyList <INodeTreeBlock> ChildBlockList;
bool IsHandled = false;
if (NodeTreeHelperChild.IsChildNodeProperty(node, PropertyName, out ChildNodeType))
{
NodeTreeHelperChild.GetChildNode(node, PropertyName, out ChildNode);
Debug.Assert(ChildNode != null);
IReadOnlyBrowsingPlaceholderNodeIndex ChildNodeIndex = CreateChildNodeIndex(browseNodeContext, node, PropertyName, ChildNode);
// Create a collection containing one index for this child node.
IReadOnlyIndexCollection IndexCollection = CreatePlaceholderIndexCollection(browseNodeContext, PropertyName, ChildNodeIndex);
browseNodeContext.AddIndexCollection(IndexCollection);
IsHandled = true;
}
else if (NodeTreeHelperOptional.IsOptionalChildNodeProperty(node, PropertyName, out ChildNodeType))
{
IReadOnlyBrowsingOptionalNodeIndex OptionalNodeIndex = CreateOptionalNodeIndex(browseNodeContext, node, PropertyName);
// Create a collection containing one index for this optional node.
IReadOnlyIndexCollection IndexCollection = CreateOptionalIndexCollection(browseNodeContext, PropertyName, OptionalNodeIndex);
browseNodeContext.AddIndexCollection(IndexCollection);
IsHandled = true;
}
else if (NodeTreeHelperList.IsNodeListProperty(node, PropertyName, out ChildNodeType))
{
NodeTreeHelperList.GetChildNodeList(node, PropertyName, out ChildNodeList);
Debug.Assert(ChildNodeList != null);
// Create a collection containing indexes for each children.
IReadOnlyIndexCollection IndexCollection = BrowseNodeList(browseNodeContext, node, PropertyName, ChildNodeList);
browseNodeContext.AddIndexCollection(IndexCollection);
IsHandled = true;
}
else if (NodeTreeHelperBlockList.IsBlockListProperty(node, PropertyName, out ChildInterfaceType, out ChildNodeType))
{
NodeTreeHelperBlockList.GetChildBlockList(node, PropertyName, out ChildBlockList);
Debug.Assert(ChildBlockList != null);
// Create a collection containing indexes for each child blocks and their children.
IReadOnlyIndexCollection IndexCollection = BrowseNodeBlockList(browseNodeContext, node, PropertyName, ChildBlockList);
browseNodeContext.AddIndexCollection(IndexCollection);
IsHandled = true;
}
else if (NodeTreeHelper.IsBooleanProperty(node, PropertyName))
{
browseNodeContext.AddValueProperty(PropertyName, ValuePropertyType.Boolean);
IsHandled = true;
}
else if (NodeTreeHelper.IsEnumProperty(node, PropertyName))
{
browseNodeContext.AddValueProperty(PropertyName, ValuePropertyType.Enum);
IsHandled = true;
}
else if (NodeTreeHelper.IsStringProperty(node, PropertyName))
{
browseNodeContext.AddValueProperty(PropertyName, ValuePropertyType.String);
IsHandled = true;
}
else if (NodeTreeHelper.IsGuidProperty(node, PropertyName))
{
browseNodeContext.AddValueProperty(PropertyName, ValuePropertyType.Guid);
IsHandled = true;
}
else if (NodeTreeHelper.IsDocumentProperty(node, PropertyName))
{
IsHandled = true; // Ignore the doc node.
}
Debug.Assert(IsHandled);
}
}