html_form_radio.hpp

/*********************************************************************/
// webdar - a web server and interface program to libdar
// Copyright (C) 2013-2025 Denis Corbin
//
// This file is part of Webdar
//
//  Webdar is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  Webdar is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with Webdar.  If not, see <http://www.gnu.org/licenses/>
//
//----
//  to contact the author: dar.linux@free.fr
/*********************************************************************/
 
#ifndef HTML_FORM_RADIO_HPP
#define HTML_FORM_RADIO_HPP
 
    // C system header files
#include "my_config.h"
extern "C"
{
 
}
 
    // C++ system header files
#include <vector>
 
    // webdar headers
#include "body_builder.hpp"
#include "events.hpp"
#include "html_label.hpp"
 
 
 
class html_form_radio : public body_builder, public events
{
public:
    static const std::string changed; 
 
    html_form_radio();
    html_form_radio(const html_form_radio & ref) = default;
    html_form_radio(html_form_radio && ref) noexcept = delete;
    html_form_radio & operator = (const html_form_radio & ref) = default;
    html_form_radio & operator = (html_form_radio && ref) noexcept = delete;
    ~html_form_radio() = default;
 
    void add_choice(const std::string & id, const std::string & label);
    void clear() { choices.clear(); unset_selected(); emphase = -1; my_body_part_has_changed(); };
 
 
    void set_selected_num(unsigned int x);
 
 
    void set_selected_id(const std::string & id);
 
    void set_selected_id_with_warning(const std::string & id, const std::string & jlabel);
 
    void unset_selected();
 
    bool is_selected() const { return selected < choices.size(); };
 
 
    unsigned int get_selected_num() const { return selected; };
 
 
    const std::string & get_selected_id() const;
 
    void set_emphase(unsigned int num);
 
    void set_emphase() { emphase = -1; my_body_part_has_changed(); };
 
    const unsigned int num_choices() const { return choices.size(); };
 
    void set_change_event_name(const std::string & name);
 
    void set_enabled(bool val);
 
    void set_tooltip(unsigned int index, const std::string & msg);
 
protected:
 
    virtual std::string inherited_get_body_part(const chemin & path,
                        const request & req) override;
 
    virtual void css_classes_have_changed() override;
 
 
    virtual void new_css_library_available() override;
 
 
    struct record
    {
    std::string id;
    html_label label;
 
    record(const std::string x_id,
           const std::string & x_label): id(x_id), label(x_label) {};
    };
 
    const std::vector<record> & get_choices() const { return choices; };
    void update_field_from_request(const request & req);
 
 
    void unlock_update_field_from_request();
 
private:
    bool enabled;              
    std::vector<record> choices;
    unsigned int selected;
    bool value_set;            
    int emphase;               
 
    std::string modif_changed; 
    void my_act();
};
 
 
#endif