public JsTreeNode Build(Node node, IEnumerable <T> entities)
{
JsTreeNode root = BuildNode(node, entities);
ISet <int> set = new HashSet <int>();
node.Summarize(ref set);
var unused = entities.Where(n => !set.Contains(GetContent(n)));
foreach (var entity in unused)
{
root.AddChild(new JsTreeNode
{
text = GetText(entity),
data = new JsTreeNodeData {
content = GetContent(entity),
elements = GetElements == null ? null : GetElements(entity)
},
state = new JsTreeNodeState {
opened = true
}
});
}
return(root);
}
public void AddChild(JsTreeNode node)
{
if (this.children == null)
{
this.children = new List <JsTreeNode>();
}
this.children.Add(node);
}
public Node Parse(int tree, JsTreeNode jsTreeNode)
{
int id = 0;
Node root = null;
ParseNode(tree, jsTreeNode, ref root, ref id);
return(root);
}
public Node Parse(int tree, IList <JsTreeNode> nodes)
{
JsTreeNode root = new JsTreeNode {
children = nodes, data = new JsTreeNodeData()
};
return(Parse(tree, root));
}
private JsTreeNode BuildNode(Node node, IEnumerable <T> entities)
{
JsTreeNode jsTreeNode = null;
if (node.Parent == null) // root node is a dummy node.
{
jsTreeNode = new JsTreeNode();
}
else
{
var entity = entities.SingleOrDefault(n => GetContent(n) == node.Data);
if (entity != null) // if entity has been deleted, tree node is also obsoleted.
{
jsTreeNode = new JsTreeNode
{
text = GetText(entity),
data = new JsTreeNodeData {
content = GetContent(entity),
elements = GetElements == null ? null : GetElements(entity)
},
state = new JsTreeNodeState {
opened = true
}
};
}
}
if (jsTreeNode != null && node.Children != null && node.Children.Count > 0)
{
foreach (Node child in node.Children)
{
var childJsTreeNode = BuildNode(child, entities);
if (childJsTreeNode != null)
{
jsTreeNode.AddChild(childJsTreeNode);
}
}
}
return(jsTreeNode);
}
private void ParseNode(int tree, JsTreeNode jsTreeNode, ref Node parent, ref int id)
{
Node node = null;
if (parent == null)
{
node = new Node(tree, id++);
parent = node;
}
else
{
node = new Node(tree, id++, parent.Id, jsTreeNode.data.content, jsTreeNode.data.elements);
parent.AddChild(node);
}
if (jsTreeNode.children != null && jsTreeNode.children.Count > 0)
{
foreach (var child in jsTreeNode.children)
{
ParseNode(tree, child, ref node, ref id);
}
}
}