LabelSourceRepositoryObserver.h

// Copyright eeGeo Ltd (2012-2014), All Rights Reserved

#pragma once

#include "ILabelSourceRepositoryObserver.h"
#include "Types.h"
#include "CallbackCollection.h"

namespace Eegeo
{
    namespace Labels
    {
        class LabelSourceRepositoryObserver : public ILabelSourceRepositoryObserver, private Eegeo::NonCopyable
        {
        public:
            LabelSourceRepositoryObserver(IAnchoredLabelSourceRepository& labelSourceRepository);
            
            ~LabelSourceRepositoryObserver();
            
            void RegisterItemAddedCallback(CallbackType& callback);
            
            void RegisterItemRemovedCallback(CallbackType& callback);
            
            void UnregisterItemAddedCallback(CallbackType& callback);
            
            void UnregisterItemRemovedCallback(CallbackType& callback);
        private:
            void OnItemAdded(const ItemType& item);
            
            void OnItemRemoved(const ItemType& item);
            
            IAnchoredLabelSourceRepository& m_labelSourceRepository;
            
            Helpers::CallbackCollection1<const IAnchoredLabelSource> m_notifyItemAddedCallbacks;
            Helpers::CallbackCollection1<const IAnchoredLabelSource> m_notifyItemRemovedCallbacks;
        };
    }
}