public void Dispose()
{
var listener = _eventListener;
var weakItem = _weakItem;
if (listener != null && !weakItem.IsEmpty)
{
_eventListener = null;
_weakItem = WeakEventListenerWrapper.Empty;
listener.Remove(weakItem, _propertyName);
}
}
private static WeakPropertyChangedListener CreateWeakPropertyListener(INotifyPropertyChanged propertyChanged, object state)
{
var listener = new WeakPropertyChangedListener(propertyChanged);
propertyChanged.PropertyChanged += listener.Handle;
return listener;
}
private static WeakPropertyChangedListener UpdateSourceEvent(INotifyPropertyChanged item,
Func<INotifyPropertyChanged, object, WeakPropertyChangedListener> addValue, WeakPropertyChangedListener currentValue, object state)
{
var array = (object[])state;
var weakItem = (WeakEventListenerWrapper)array[1];
var path = (string)array[2];
array[3] = currentValue.AddInternal(weakItem, path);
return currentValue;
}
public Unsubscriber(WeakPropertyChangedListener eventListener, WeakEventListenerWrapper weakItem)
{
_eventListener = eventListener;
_weakItem = weakItem;
}
public Unsubscriber(WeakPropertyChangedListener eventListener, WeakEventListenerWrapper weakItem, string propertyName)
{
_eventListener = eventListener;
_weakItem = weakItem;
_propertyName = propertyName;
}
