/***
    This file is a placeholder for the Event_manager class you will write 
    in phase 7 (p7).

    My class Window uses class Event_manager.  Since p6 uses class Window
    you need this placeholder class to get p6 to work.

    You may use this file and event_manager.cpp w/o modification in p6.

    You may use them as a starting point for your Event_manager class for p7.

    I have put in just enough for it to work in p6.

***/

#ifndef EVENT_MANAGER_H
#define EVENT_MANAGER_H

#include <iostream>
#include <string>
#include <vector>
using namespace std;

#include "window.h" // for Keystroke enum

class Statement_block;

class Event_manager
{
    public:

        static Event_manager *instance();

        void execute_handlers(Window::Keystroke keystroke);

        ~Event_manager();

    private:
        // hide default constructor because this is a singleton
        Event_manager();

        static Event_manager *m_instance;

        // disable default copy constructor and default assignment
        // done as a precaution, they should never be called
        Event_manager(const Event_manager&); 
        const Event_manager &operator=(const Event_manager&); 
};

#endif // #ifndef EVENT_MANAGER_H