llconfirmationmanager.h

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#ifndef LL_LLCONFIRMATIONMANAGER_H
#define LL_LLCONFIRMATIONMANAGER_H

class LLConfirmationManager
{
public:
        class ListenerBase
        {
        public:
                virtual ~ListenerBase();
                virtual void confirmed(const std::string& password) = 0;
        };

        enum Type { TYPE_NONE, TYPE_CLICK, TYPE_PASSWORD };
        
        static void confirm(Type type,
                const std::string& purchase, ListenerBase* listener);
        static void confirm(const std::string& type,
                const std::string& purchase, ListenerBase* listener);
                // note: these take control of, and delete the listener when done

        template <class T>
        class Listener : public ListenerBase
        {
        public:
                typedef void (T::*ConfirmationMemberFunction)(const std::string&);
                
                Listener(T& object, ConfirmationMemberFunction function)
                        : mObject(object), mFunction(function)
                        { }
                
                void confirmed(const std::string& password)
                {
                        (mObject.*mFunction)(password);
                }
                
        private:
                T& mObject;
                ConfirmationMemberFunction mFunction;
        };

        template <class T>
        static void confirm(Type type,
                const std::string& action,
                T& obj, void(T::*func)(const std::string&))
        {
                confirm(type, action, new Listener<T>(obj, func));
        }
        
        template <class T>
        static void confirm(const std::string& type,
                const std::string& action,
                T& obj, void(T::*func)(const std::string&))
        {
                confirm(type, action, new Listener<T>(obj, func));
        }               
};

#endif 

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