コード例 #1
0
        public NavTreeViewModel Build()
        {
            var leafIndex    = 1;
            var treeRootNode = TreeItem <NavTreeItemModel> .CreateParentNode("root", Array.Empty <TreeItem <NavTreeItemModel> >());

            foreach (var state in _internalState)
            {
                AddNavTreeItem(state, treeRootNode);
            }

            return(new NavTreeViewModel
                   (
                       treeRootNode.Children,
                       treeRootNode.Children.GetFirstSelectableTestState(),
                       Enumerable.Empty <TreeItem <NavTreeItemModel> >()
                   ));


            void AddNavTreeItem(InternalStateItem state, TreeItem <NavTreeItemModel> parentNode)
            {
                var nodes             = state.NodeTitle.Split('/');
                var currentTitle      = nodes[0];
                var currentNode       = parentNode.Children.SingleOrDefault(o => o.DisplayName == currentTitle);
                var currentNodeExists = currentNode != null;
                var isLeafNode        = nodes.Length == 1;

                //Leaf Node
                if (isLeafNode)
                {
                    var leafChild = TreeItem <NavTreeItemModel> .CreateLeafNode(leafIndex, currentTitle, state.Type, new NavTreeItemModel(state.ViewModel, state.IsCarltonComponent));

                    parentNode.Children = parentNode.Children.Append(leafChild);
                    leafIndex++;
                    return;
                }

                //Parent Does Not Exist
                if (!currentNodeExists)
                {
                    var newNode = TreeItem <NavTreeItemModel> .CreateParentNode(currentTitle, Array.Empty <TreeItem <NavTreeItemModel> >());

                    parentNode.Children = parentNode.Children.Append(newNode);
                    currentNode         = newNode;
                }

                //Move to the Next Node
                state.PopCurrentFromNodeTitle();
                AddNavTreeItem(state, currentNode);
            };
        }