public void reparentIfNeeded(FocusNode node)
{
D.assert(node != null);
if (node._parent == null || node._parent == this)
{
return;
}
node.unfocus();
D.assert(node._parent == null);
if (this._focus == null)
{
this._setFocus(node);
}
}
public void detach()
{
D.assert(_node != null);
D.assert(FocusManagerUtils._focusDebug("Detaching node:", new List <string> {
_node.ToString(), $"With enclosing scope {_node.enclosingScope}"
}));
if (isAttached)
{
if (_node.hasPrimaryFocus || (_node._manager != null && _node._manager._markedForFocus == _node))
{
_node.unfocus(disposition: UnfocusDisposition.previouslyFocusedChild);
}
_node._manager?._markDetached(_node);
_node._parent?._removeChild(_node);
_node._attachment = null;
D.assert(!_node.hasPrimaryFocus);
D.assert(_node._manager?._markedForFocus != _node);
}
D.assert(!isAttached);
}