public Action Register(Action <TParameter> a)
{
var callback = WeakCallback <TParameter> .Create(this, (obj, val) => a(val));
Register(callback);
return(() => Deregister(callback));
}
public Action Register <THost>(THost host, Action <THost, TParameter> callback) where THost : class
{
var callback2 = (WeakCallback <TParameter> .Create(host, callback));
Register(callback2);
return(() => Deregister(callback2));
}
public void Deregister(WeakCallback <TParameter> a)
{
m_callbacks.RemoveAll(b => b == a || b.Expired);
}
public Action Register(WeakCallback <TParameter> a)
{
m_callbacks.RemoveAll(b => b.Expired);
m_callbacks.Add(a);
return(() => Deregister(a));
}
public static Action <TParameter> Handler <TObject>(TObject o, Action <TObject, TParameter> callback) where TObject : class
{
var weak = WeakCallback <TParameter> .Create(o, callback);
return(weak.Execute);
}