shell_interaction.hpp

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/*********************************************************************/
// dar - disk archive - a backup/restoration program
// Copyright (C) 2002-2024 Denis Corbin
//
// This program 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 2
// of the License, or (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// to contact the author, see the AUTHOR file
/*********************************************************************/
 
 
 
#ifndef SHELL_INTERACTION_HPP
#define SHELL_INTERACTION_HPP
 
extern "C"
{
#if HAVE_TERMIOS_H
#include <termios.h>
#endif
} // end extern "C"
 
#include "../my_config.h"
#include <iostream>
 
#include "user_interaction.hpp"
#include "database.hpp"
#include "archive_options_listing_shell.hpp"
 
namespace libdar
{
 
 
    class shell_interaction : public user_interaction
    {
    public:
    shell_interaction(std::ostream & out,
              std::ostream & interact,
              bool silent);
 
    shell_interaction(const shell_interaction & ref);
 
    shell_interaction(shell_interaction && ref) noexcept = delete;
 
    shell_interaction & operator = (const shell_interaction & ref) = delete;
 
    shell_interaction & operator = (shell_interaction && ref) noexcept = delete;
 
    ~shell_interaction();
 
    void change_non_interactive_output(std::ostream & out);
    void read_char(char & a);
    void set_beep(bool mode) { beep = mode; };
 
 
    void warning_with_more(U_I num) { at_once = num; count = 0; };
 
    void archive_show_contents(const archive & ref, const archive_options_listing_shell & options);
 
    void database_show_contents(const database & ref);
 
    void database_show_files(const database & ref, archive_num num, const database_used_options & opt);
 
    void database_show_version(const database & ref, const path & chem);
 
    void database_show_statistics(const database &ref);
 
    protected:
        // inherited methods from user_interaction class
 
    virtual void inherited_message(const std::string & message) override;
    virtual bool inherited_pause(const std::string &message) override;
    virtual std::string inherited_get_string(const std::string & message, bool echo) override;
    virtual secu_string inherited_get_secu_string(const std::string & message, bool echo) override;
 
    private:
        // data type
 
    enum mode { m_initial, m_inter, m_noecho };
 
        // object fields and methods
 
    S_I input;               
    std::ostream *output;    
    std::ostream *inter;     
    bool beep;               
        termios initial;         
    termios interaction;     
    termios initial_noecho;  
    bool has_terminal;       
    U_I at_once, count;      
 
        // field used by listing_callbacks
 
    bool archive_listing_sizes_in_bytes; 
    bool archive_listing_display_ea;     
    range all_slices;                    
    std::string marge;                   
 
    void set_term_mod(mode m);
    void my_message(const std::string & mesg);
    void xml_listing_attributes(const list_entry & entry);
 
 
        // class fields and methods
 
    static const U_I bufsize;
    static constexpr const char* REMOVE_TAG = "[--- REMOVED ENTRY ----]";
 
    static void archive_listing_callback_tree(const std::string & the_path,
                          const list_entry & entry,
                          void *context);
 
    static void archive_listing_callback_tar(const std::string & the_path,
                         const list_entry & entry,
                         void *context);
 
    static void archive_listing_callback_xml(const std::string & the_path,
                         const list_entry & entry,
                         void *context);
 
    static void archive_listing_callback_slicing(const std::string & the_path,
                             const list_entry & entry,
                             void *context);
 
    static void show_files_callback(void *tag,
                    const std::string & filename,
                    bool available_data,
                    bool available_ea);
 
 
    static void get_version_callback(void *tag,
                     archive_num num,
                     db_etat data_presence,
                     bool has_data_date,
                     datetime data,
                     db_etat ea_presence,
                     bool has_ea_date,
                     datetime ea);
 
    static void statistics_callback(void *tag,
                    U_I number,
                    const infinint & data_count,
                    const infinint & total_data,
                    const infinint & ea_count,
                    const infinint & total_ea);
 
    static std::string yes_no(bool val) { return (val ? "yes" : "no"); }
 
    };
 
 
} // end of namespace
 
#endif