protected override void _AddListener(EventListenerWrapper listener)
{
// get or create channel collection
if (m_Listeners.TryGetValue(listener.Channel, out var channel) == false)
{
// create new chanel
channel = new Dictionary <Type, SortedDictionary <int, List <EventListenerWrapper> > >();
m_Listeners.Add(listener.Channel, channel);
}
// get or create group
if (channel.TryGetValue(listener.KeyType, out var group) == false)
{
group = new SortedDictionary <int, List <EventListenerWrapper> >();
channel.Add(listener.KeyType, group);
}
// add or create order group
if (group.TryGetValue(listener.Order, out var orderGroup) == false)
{
orderGroup = new List <EventListenerWrapper>(4);
group.Add(listener.Order, orderGroup);
}
// finally add listener if collection doesn't contains it
if (orderGroup.Exists(n => n.MessageListener == listener.MessageListener) == false)
{
orderGroup.Add(listener);
}
}
protected override void _RemoveEventListener(EventListenerWrapper listener)
{
if (listener == null)
{
return;
}
// remove first much
// ReSharper disable once ForeachCanBeConvertedToQueryUsingAnotherGetEnumerator
if (m_Listeners.TryGetValue(listener.Channel, out var channel) &&
channel.TryGetValue(listener.KeyType, out var group))
{
foreach (var orderGroup in group)
{
var wrappers = orderGroup.Value;
var index = wrappers.FindIndex(n => n.MessageListener == listener.MessageListener);
if (index != -1)
{
wrappers.RemoveAt(index);
// remove unused groups
if (wrappers.Count == 0)
{
// remove ordered group
group.Remove(orderGroup.Key);
if (group.Count == 0)
{
// remove type group
channel.Remove(listener.KeyType);
if (channel.Count == 0)
{
// remove channel
m_Listeners.Remove(listener.Channel);
}
}
}
return;
}
}
}
}
