/// <summary>
/// Dispatches the specified event to each listener.
/// </summary>
/// <param name="eventType">Event type</param>
/// <param name="item">Item</param>
private void DispatchEvent(int eventType, TItem item)
{
object[] listenerSet;
lock (_registeredListener) {
listenerSet = _registeredListener.ToArray();
}
for (int i = -1; ++i != listenerSet.Length;)
{
object rawObj = listenerSet[i];
IEnumerableListener rawListener = rawObj as IEnumerableListener;
IEnumerableListener <TItem> genListener = rawObj as IEnumerableListener <TItem>;
if (eventType == AddEvent)
{
rawListener?.OnItemAdded(this, item);
genListener?.OnItemAdded(this, item);
continue;
}
if (eventType == RemoveEvent)
{
rawListener?.OnItemRemoved(this, item);
genListener?.OnItemRemoved(this, item);
continue;
}
if (eventType == ClearEvent)
{
rawListener?.OnCleared(this);
genListener?.OnCleared(this);
}
}
}
/// <inheritdoc />
void IObservableEnumerable.RemoveListener(IEnumerableListener listener)
{
_listener.Remove(listener);
}
/// <inheritdoc />
void IObservableEnumerable.AddListener(IEnumerableListener listener)
{
_listener.Add(listener);
}
/// <inheritdoc />
public void RemoveListener(IEnumerableListener <TElement> listener)
{
_genericListener.Remove(listener);
}
/// <inheritdoc />
public void AddListener(IEnumerableListener <TElement> listener)
{
_genericListener.Add(listener);
}
/// <inheritdoc />
void IObservableEnumerable.RemoveListener(IEnumerableListener listener)
{
RemoveListenerInstance(listener);
}
/// <inheritdoc />
public void RemoveListener(IEnumerableListener <TItem> listener)
{
RemoveListenerInstance(listener);
}
/// <inheritdoc />
void IObservableEnumerable.AddListener(IEnumerableListener listener)
{
AddListenerInstance(listener);
}
/// <inheritdoc />
public void AddListener(IEnumerableListener <TItem> listener)
{
AddListenerInstance(listener);
}
