public static void TriggerEventHandler <TArgs>(this GraphStack stack, Func <EventHook, bool> predicate, TArgs args, Func <IGraphParentElement, bool> recurse, bool force)
{
Ensure.That(nameof(stack)).IsNotNull(stack);
GraphReference reference = null;
foreach (var element in stack.graph.elements)
{
if (element is IGraphEventHandler <TArgs> handler)
{
if (reference == null)
{
reference = stack.ToReference();
}
if (predicate == null || predicate.Invoke(handler.GetHook(reference)))
{
if (force || handler.IsListening(reference))
{
handler.Trigger(reference, args);
}
}
}
if (element is IGraphParentElement parentElement && recurse(parentElement))
{
if (stack.TryEnterParentElementUnsafe(parentElement))
{
stack.TriggerEventHandler(predicate, args, recurse, force);
stack.ExitParentElement();
}
}
}
}
public void StopListening(GraphStack stack)
{
if (stack.TryEnterParentElement(this))
{
nest.graph.StopListening(stack);
stack.ExitParentElement();
}
}
public void StopListening(GraphStack stack)
{
stack.GetElementData <Data>(this).isListening = false;
if (stack.TryEnterParentElement(this))
{
nest.graph.StopListening(stack);
stack.ExitParentElement();
}
}
public void StartListening(GraphStack stack)
{
if (stack.TryEnterParentElement(this))
{
nest.graph.StartListening(stack);
stack.ExitParentElement();
}
stack.GetElementData <Data>(this).isListening = true;
}