/// <summary>
/// Handles a message of a specific type by testing it for the type, as well as verifying that there
/// is a registered callback.
/// </summary>
/// <param name="message">The message to dispatch.</param>
/// <param name="callback">The callback to dispatch the message to.</param>
/// <returns>Returns <c>true</c> if processing should continue; <c>false</c> otherwise.</returns>
public static bool DispatchWhen <TMessage>(
this _MessageSinkMessage message,
MessageHandler <TMessage>?callback)
where TMessage : _MessageSinkMessage
{
Guard.ArgumentNotNull(message);
if (callback != null && message is TMessage castMessage)
{
var args = new MessageHandlerArgs <TMessage>(castMessage);
callback(args);
return(!args.IsStopped);
}
return(true);
}
public bool OnMessage(_MessageSinkMessage message)
{
Messages.Add(message);
return(true);
}