/home/denis/Webdar/webdar/src/html_form_input_file.hpp

define an events object to register for the html_form_input_file::repo_updated event

define an events object to register for the html_form_input_file::repo_updated event

Note

instead of calling set_entrepot() above whenever an entrepot is changed or updated a better approach is to update the entrepot by this method only when this html_form_input_file component needs it.

• The need is expressed by the event html_form_input_file::repo_update_needed generated by 'this'
• the actor has then to setup the necessary things to in-fine call set_entrepot() with the updated entrepot
• then the updater (which would probably be the same as the actor just above), will generate the html_form_input_file::repo_updated event, on which this object is waiting (thanks to this set_entrepo_updater() method. When this event is received, the 'this' component continue its process using the, now updated, entrepot.

if updater is set to nullptr (or set_entrepot_updater() is never invoked), no html_form_input_file::repo_update_needed event is generated by 'this'.

/*********************************************************************/
// 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_INPUT_FILE_HPP
#define HTML_FORM_INPUT_FILE_HPP
 
    // C system header files
#include "my_config.h"
extern "C"
{
 
}
 
    // C++ system header files
#include <memory>
 
    // webdar headers
#include "html_div.hpp"
#include "events.hpp"
#include "jsoner.hpp"
#include "html_form_input.hpp"
#include "html_double_button.hpp"
#include "html_select_file.hpp"
#include "html_text.hpp"
 
 
 
class html_form_input_file: public html_div,
                public events,
                public actor,
                public jsoner
{
public:
 
    static const std::string changed_event; 
    static const std::string changed_entrepot; 
    static const std::string repo_update_needed; 
    static const std::string repo_updated; 
 
    html_form_input_file(const std::string & label,
             const std::string & initial_value,
             const std::string & size,
             const std::string & css_class,
             const std::string & popup_message);
 
    html_form_input_file(const html_form_input_file & ref) = delete;
    html_form_input_file(html_form_input_file && ref) noexcept = delete;
    html_form_input_file & operator = (const html_form_input_file & ref) = delete;
    html_form_input_file & operator = (html_form_input_file && ref) noexcept = delete;
    ~html_form_input_file() = default;
 
        // relayed from html_form_input
 
    void change_label(const std::string & label) { input.change_label(label); };
    const std::string & get_value() const { return input.get_value(); };
    void set_value(const std::string & val) { input.set_value(val); };
 
 
    void set_change_event_name(const std::string & name);
 
    // relayed from html_select_file
 
    enum select_mode { select_dir, select_file, select_slice, select_symlink };
 
    void set_select_mode(select_mode val);
    void set_can_create_dir(bool val) { user_select.set_can_create_dir(val); };
 
 
    void set_entrepot(std::shared_ptr<libdar::entrepot> entrepot);
 
 
 
    void set_entrepot_updater(events* updater);
 
    std::string get_min_digits() const;
 
    // inherited from events
 
    virtual void on_event(const std::string & event_name) override;
 
    virtual void load_json(const json & source) override { input.load_json(source); };
 
    virtual json save_json() const override { return input.save_json(); };
 
    virtual void clear_json() override { input.clear_json(); };
 
    void set_tooltip(const std::string & val) { input.set_tooltip(val); };
 
protected:
 
    // inherited from body_builder
    virtual void new_css_library_available() override;
    virtual std::string inherited_get_body_part(const chemin & path,
                        const request & req) override;
 
 
private:
    std::string changed_event_name;
    std::shared_ptr<libdar::entrepot> entrep;
    bool refresh_get_body;
    select_mode selmode;
    std::string min_digits;
    bool internal_change;
    events* repo_updater;
 
    // adoption tree:
    //
    //  html_div (this)
        //   |
        //   +--- input_div
    //   | |
    //   | +- input
    //   +--- trigger
        //   +--- user_select
    //   +--- empty_text
    //
 
    html_form_input input;    
    html_div input_div;       
    html_double_button trigger;      
    html_select_file user_select;  
    html_text empty_text;    
 
 
    std::string slicename_to_basename_update_min_digits(const std::string & val);
 
    static const std::string triggered_event; 
 
    static const std::string css_input;
    static const std::string css_button_box;
};
 
 
#endif