gui_event_emitter.hpp

#ifndef LXGUI_GUI_EVENT_EMITTER_HPP
#define LXGUI_GUI_EVENT_EMITTER_HPP
 
#include "lxgui/gui_event_data.hpp"
#include "lxgui/lxgui.hpp"
#include "lxgui/utils_signal.hpp"
 
#include <string>
#include <unordered_map>
 
namespace lxgui::gui {
 
using event_handler_signature = void(const event_data&);
 
using event_signal = utils::signal<event_handler_signature>;
 
using event_handler_function = event_signal::function_type;
 
class event_emitter {
public:
    event_emitter() = default;
 
    // Non-copiable, non-movable
    event_emitter(const event_emitter&) = delete;
    event_emitter(event_emitter&&)      = delete;
    event_emitter& operator=(const event_emitter&) = delete;
    event_emitter& operator=(event_emitter&&) = delete;
 
    utils::connection
    register_event(const std::string& event_name, event_handler_function callback);
 
    void fire_event(const std::string& event_name, event_data data = event_data{});
 
private:
    std::unordered_map<std::string, event_signal> registered_event_list_;
};
 
} // namespace lxgui::gui
 
#endif