public WeakDelegate(T @delegate, Action <T> callback)
{
this.Callback = callback;
var del = (Delegate)(object)@delegate;
this.Type = del.GetType();
this.Method = del.Method;
if (del.Target != null)
{
this.Reference = new WeakReference(del.Target);
this.WrapperDelegate = this.CreateDelegate();
}
WeakDelegateCollector.RegisterWeakDelegate(this);
if (del.Target == null)
{
this.WrapperDelegate = WeakDelegateCollector.GetStaticDelegate(@delegate);
}
}
public bool CheckDelegate()
{
if (this.Reference.Target == null)
{
Action <T> callback = null;
lock (this) {
callback = this.Callback;
this.Callback = null;
}
if (callback != null)
{
callback(this.WrapperDelegate);
}
WeakDelegateCollector.UnregisterWeakDelegate(this);
return(false);
}
return(true);
}