/// <summary>
/// Gets the list of actions to be invoked for the specified message
/// </summary>
/// <param name="key">The message to get the actions for</param>
/// <returns>Returns a list of actions that are registered to the specified message</returns>
internal List <Delegate> GetActions(Type messageTargetType, string key)
{
if (key == null)
{
throw new ArgumentNullException("message");
}
List <Delegate> actions;
lock (_map)
{
if (!_map.ContainsKey(key))
{
return(null);
}
List <WeakAction> weakActions = _map[key];
actions = new List <Delegate>(weakActions.Count);
for (int i = weakActions.Count - 1; i > -1; --i)
{
WeakAction weakAction = weakActions[i];
if (weakAction == null)
{
continue;
}
if (weakAction.Recipient.GetType() == messageTargetType)
{
continue;
}
Delegate action = weakAction.CreateAction();
if (action != null)
{
actions.Add(action);
}
else
{
// The target object is dead, so get rid of the weak action.
weakActions.Remove(weakAction);
}
}
// Delete the list from the map if it is now empty.
if (weakActions.Count == 0)
{
_map.Remove(key);
}
}
// Reverse the list to ensure the callbacks are invoked in the order they were registered.
actions.Reverse();
return(actions);
}
/// <summary>
/// Gets the list of actions to be invoked for the specified message
/// </summary>
/// <param name="message">The message to get the actions for</param>
/// <returns>Returns a list of actions that are registered to the specified message</returns>
internal List <Delegate> GetActions(Enum message)
{
List <Delegate> actions;
lock (_map) {
if (!_map.ContainsKey(message))
{
return(null);
}
Dictionary <Guid, WeakAction> weakActions = _map[message];
actions = new List <Delegate>(weakActions.Count);
foreach (var id in weakActions.Keys)
{
WeakAction weakAction = weakActions[id];
if (weakAction == null)
{
continue;
}
Delegate action = weakAction.CreateAction();
if (action != null)
{
actions.Add(action);
}
else
{
// The target object is dead, so get rid of the weak action.
weakActions.Remove(id);
}
}
// Delete the list from the map if it is now empty.
if (weakActions.Count == 0)
{
_map.Remove(message);
}
}
// Reverse the list to ensure the callbacks are invoked in the order they were registered.
actions.Reverse();
return(actions);
}
internal List <Delegate> GetActions(string message)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
List <Delegate> actions;
lock (_map)
{
if (!_map.ContainsKey(message))
{
return(null);
}
List <WeakAction> weakActions = _map[message];
actions = new List <Delegate>(weakActions.Count);
for (int i = weakActions.Count - 1; i >= -1 + 1; i += -1)
{
WeakAction weakAction = weakActions[i];
if (weakAction == null)
{
continue;
}
Delegate action = weakAction.CreateAction();
if (action != null)
{
actions.Add(action);
}
else
{
weakActions.Remove(weakAction);
}
}
// Delete the list from the map if it is now empty.
if (weakActions.Count == 0)
{
_map.Remove(message);
}
}
return(actions);
}