/// <summary>
/// Register a settings listener for a specific option. The settings listener
/// will be called as soon as the option value changes, e.g. when modifying
/// the configuration through the GUI, or when loading a game having a patch
/// file defined. The settings listener is also called immediately by this
/// method while registering.
///
/// Only one settings listener can be defined for each name/option
/// combination. This allows to call this method for the same listener
/// multiple times and have it registered only once.
/// </summary>
/// <param name="name"> the name of the settings listener </param>
/// <param name="option"> the settings option </param>
/// <param name="listener"> the listener to be called when the settings option value
/// changes </param>
public virtual void registerSettingsListener(string name, string option, ISettingsListener listener)
{
removeSettingsListener(name, option);
SettingsListenerInfo info = new SettingsListenerInfo(name, option, listener);
allListeners.Add(info);
IList <ISettingsListener> listenersForKey = listenersByKey[option];
if (listenersForKey == null)
{
listenersForKey = new LinkedList <ISettingsListener>();
listenersByKey[option] = listenersForKey;
}
listenersForKey.Add(listener);
// Trigger the settings listener immediately if a value is defined
string value = getProperty(option);
if (!string.ReferenceEquals(value, null))
{
listener.settingsValueChanged(option, value);
}
}
/// <summary>
/// Отписывает слушателя от рассылки уведомлений
/// </summary>
public void RemoveListener(ISettingsListener listener)
{
_Listeners.Remove(listener);
}
/// <summary>
/// Добавить слушателя, который будет оповещен при изменении настроек
/// </summary>
public void AddListener(ISettingsListener listener)
{
_Listeners.Add(listener);
}
protected internal virtual void setSettingsListener(string option, ISettingsListener settingsListener)
{
Settings.Instance.registerSettingsListener(Name, option, settingsListener);
}
public SettingsListenerInfo(string name, string key, ISettingsListener listener)
{
this.name = name;
this.key = key;
this.listener = listener;
}
