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//
// lager - library for functional interactive c++ programs
// Copyright (C) 2017 Juan Pedro Bolivar Puente
//
// This file is part of lager.
//
// lager is free software: you can redistribute it and/or modify
// it under the terms of the MIT License, as detailed in the LICENSE
// file located at the root of this source code distribution,
// or here: <https://github.com/arximboldi/lager/blob/master/LICENSE>
//
#pragma once
#include <boost/asio/io_context.hpp>
#include <boost/asio/posix/stream_descriptor.hpp>
#include <boost/asio/signal_set.hpp>
#include <functional>
#include <variant>
extern "C"
{
// this is required to avoid naming conflicts with boost::asio
#ifndef NCURSES_NOMACROS
#define NCURSES_NOMACROS 1
#endif
// this is required on Apple for ::get_wch
#ifndef _XOPEN_SOURCE_EXTENDED
#define _XOPEN_SOURCE_EXTENDED 1
#endif
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 1
#endif
#include <ncurses.h>
}
namespace ncurses {
struct coord
{
int row = {};
int col = {};
};
using key_code = std::tuple<int, wint_t>;
struct key_event
{
key_code key;
};
struct resize_event
{
coord size;
};
using event = std::variant<key_event, resize_event>;
struct terminal
{
using event_handler = std::function<void(event)>;
terminal(boost::asio::io_context& serv);
coord size();
void start(event_handler ev);
void stop();
private:
struct cleanup_fn
{
void operator()(_win_st* win) const;
};
void next_key_();
void next_resize_();
std::unique_ptr<_win_st, cleanup_fn> win_;
boost::asio::posix::stream_descriptor input_;
boost::asio::signal_set signal_;
event_handler handler_;
};
} // namespace ncurses
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