internal static void SetCallbacks <TValue>(
ref TValue value,
PropertyPath path,
PropertyElement root,
PropertyElement field)
{
field.SetRoot(root);
field.SetTarget(value);
field.binding = new PropertyBinding <TValue>(field, root, path);
var r = root;
var p = path;
field.OnChanged += (element, propertyPath) =>
{
r.SetValue(p, element.GetTarget <TValue>());
element.SetTarget(r.GetValue <TValue>(p));
var fullPath = new PropertyPath();
fullPath.PushPath(p);
fullPath.PushPath(propertyPath);
r.NotifyChanged(fullPath);
};
}