#pragma once


// Define a dummy DelegateArg for notification
class DelegateArgsNotifyDelegate : public DelegateArgs
{
};


//
// a Notify delegate, send notification when insert, remove, clear
//
class NotifyDelegate : public Delegate
{
public:
	inline NotifyDelegate ()
	{
	}

	inline NotifyDelegate (const char * DelegateID) : Delegate (DelegateID)
	{
	}

	inline virtual ~NotifyDelegate ()
	{
	}

	inline virtual void AddDelegateHandler (DelegateHandler * handler)
	{
		Delegate::AddDelegateHandler (handler);

		DelegateArgsNotifyDelegate e;
		m_Notify.Invoke (this, &e);
	}

	inline virtual void RemoveDelegateHandler (DelegateHandler * handler)
	{
		Delegate::RemoveDelegateHandler (handler);

		DelegateArgsNotifyDelegate e;
		m_Notify.Invoke (this, &e);
	}	

	inline void RemoveAll ()
	{
		Delegate::RemoveAll ();

		DelegateArgsNotifyDelegate e;
		m_Notify.Invoke (this, &e);
	}

	inline virtual void AddFirst (DelegateHandler * handler)
	{
		Delegate::AddFirst (handler);

		DelegateArgsNotifyDelegate e;
		m_Notify.Invoke (this, &e);
	}

	inline virtual void AddLast (DelegateHandler * handler)
	{
		Delegate::AddLast (handler);

		DelegateArgsNotifyDelegate e;
		m_Notify.Invoke (this, &e);
	}

	inline int TransferTo (Delegate & toDelegate)
	{
		int rc = Delegate::TransferTo (toDelegate);

		DelegateArgsNotifyDelegate e;
		m_Notify.Invoke (this, &e);

		return rc;
	}

	inline int TransferFrom (Delegate & fromDelegate)
	{
		int rc = Delegate::TransferFrom (fromDelegate);

		DelegateArgsNotifyDelegate e;
		m_Notify.Invoke (this, &e);

		return rc;
	}


	inline int TransferTo (Array <DelegateHandler *> & toArray)
	{
		int rc = Delegate::TransferTo (toArray);

		DelegateArgsNotifyDelegate e;
		m_Notify.Invoke (this, &e);

		return rc;
	}

	inline int TransferFrom (Array <DelegateHandler *> & fromArray)
	{
		int rc = Delegate::TransferFrom (fromArray);

		DelegateArgsNotifyDelegate e;
		m_Notify.Invoke (this, &e);

		return rc;
	}

public:
	Delegate m_Notify;
};