read_file.hpp

#ifndef TERMOX_WIDGET_WIDGETS_READ_FILE_HPP
#define TERMOX_WIDGET_WIDGETS_READ_FILE_HPP
#include <fstream>
#include <memory>
 
#include <signals_light/signal.hpp>
 
#include <termox/widget/pipe.hpp>
#include <termox/widget/tuple.hpp>
#include <termox/widget/widgets/button.hpp>
#include <termox/widget/widgets/line_edit.hpp>
#include <termox/widget/widgets/tile.hpp>
 
namespace ox::detail {
 
struct Read_file_widgets : HTuple<Button, Tile, Line_edit> {
    Button& open_btn         = this->get<0>();
    Tile& buffer             = this->get<1>();
    Line_edit& filename_edit = this->get<2>();
 
    Read_file_widgets();
};
 
}  // namespace ox::detail
 
namespace ox {
 
template <typename Char_t = char>
class Read_file : public detail::Read_file_widgets {
   public:
    using Stream_t = std::basic_ifstream<Char_t>;
 
   public:
    sl::Signal<void(Stream_t&)> request;
 
   public:
    Read_file()
    {
        open_btn | pipe::on_press([this] { this->notify(); });
    }
 
   private:
    void notify()
    {
        auto ifs = Stream_t{filename_edit.text().str()};
        request.emit(ifs);
    }
};
 
template <typename Char_t = char>
[[nodiscard]] auto read_file() -> std::unique_ptr<Read_file<Char_t>>
{
    return std::make_unique<Read_file<Char_t>>();
}
 
}  // namespace ox
#endif  // TERMOX_WIDGET_WIDGETS_READ_FILE_HPP