LiveScanDialog.hpp

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/*
 * BastionGuard™
 * Copyright (C) 2025–2026 Calogero Scarnà
 *
 * 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, version 3.
 *
 * 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, see <https://www.gnu.org/licenses/>.
 *
 * BastionGuard™ is a trademark of Calogero Scarnà.
 * The BastionGuard™ name and branding are not licensed under the GPL.
 */
 
#pragma once
#include <gtkmm.h>
#include <atomic>
#include <memory>
#include <mutex>
#include <vector>
 
#include "../LifetimeGuard.hpp"
 
class LiveScanDialog : public Gtk::Window {
public:
    LiveScanDialog(Gtk::Window* parent, const std::string& path);
    ~LiveScanDialog() override;
 
    void append_output(const std::string& line);
    void mark_finished();
    bool cancelled() const { return cancelled_.load(); }
    std::string get_full_output() const;
 
private:
    void flush_output_idle();
 
    Gtk::Box root_;
    Gtk::ProgressBar progress_;
    Gtk::ScrolledWindow scroller_;
    Gtk::TextView text_view_;
    Gtk::Button btn_cancel_;
 
    std::atomic<bool> finished_{false};
    std::atomic<bool> cancelled_{false};
    std::atomic<bool> flush_pending_{false};
 
    mutable std::mutex mtx_;
    std::vector<std::string> pending_lines_;
    std::string full_output_;
 
    // Alive flag condiviso: i lambda asincroni catturano una copia di questo
    // shared_ptr; se l'oggetto viene distrutto prima che il lambda giri,
    // il flag diventa false e il lambda fa early-return senza toccare `this`.
    BastionGuard::AliveFlag alive_;
};