public TreePageViewModel(TreeNode[] nodes)
{
Nodes = nodes;
_details = this.WhenAnyValue(x => x.SelectedNode)
.Select(x => x != null ? new ControlDetailsViewModel(x.Control) : null)
.ToProperty(this, x => x.Details);
}
private void ExpandNode(TreeNode node)
{
if (node != null)
{
node.IsExpanded = true;
ExpandNode(node.Parent);
}
}
public VisualTreeNode(IVisual visual, TreeNode parent)
: base((Control)visual, parent)
{
var host = visual as IVisualTreeHost;
if (host?.Root == null)
{
Children = visual.VisualChildren.CreateDerivedCollection(x => new VisualTreeNode(x, this));
}
else
{
Children = new ReactiveList<VisualTreeNode>(new[] { new VisualTreeNode(host.Root, this) });
}
if (Control != null)
{
IsInTemplate = Control.TemplatedParent != null;
}
}
public void SelectControl(IControl control)
{
var node = default(TreeNode);
while (node == null && control != null)
{
node = FindNode(control);
if (node == null)
{
control = control.GetVisualParent<IControl>();
}
}
if (node != null)
{
SelectedNode = node;
ExpandNode(node.Parent);
}
}
private TreeNode FindNode(TreeNode node, IControl control)
{
if (node.Control == control)
{
return node;
}
else
{
foreach (var child in node.Children)
{
var result = FindNode(child, control);
if (result != null)
{
return result;
}
}
}
return null;
}
public LogicalTreeNode(ILogical logical, TreeNode parent)
: base((Control)logical, parent)
{
Children = logical.LogicalChildren.CreateDerivedCollection(x => new LogicalTreeNode(x, this));
}