Method update

Tactility/Source/app/files/View.cpp:452–520

}

void View::update(size_t start_index) {
    const bool is_root = (state->getCurrentPath() == "/");

    auto scoped_lockable = lvgl::getSyncLock()->asScopedLock();
    if (!scoped_lockable.lock(lvgl::defaultLockTime)) {
        LOGGER.error(LOG_MESSAGE_MUTEX_LOCK_FAILED_FMT, "lvgl");
        return;
    }

    lv_obj_clean(dir_entry_list);

    current_start_index = start_index;

    state->withEntries([this, is_root](const std::vector<dirent>& entries) {
        size_t total_entries = entries.size();
        if (current_start_index >= total_entries) {
            current_start_index = (total_entries > MAX_BATCH)
                ? (total_entries - MAX_BATCH)
                : 0;
        }
        size_t count = 0;

        if (!is_root && current_start_index > 0) {
            auto* back_btn = lv_list_add_btn(dir_entry_list, LV_SYMBOL_LEFT, "Back");
            lv_obj_add_event_cb(back_btn, [](lv_event_t* event) {
                auto* view = static_cast<View*>(lv_event_get_user_data(event));
                size_t new_index = (view->current_start_index >= view->MAX_BATCH) ? 
                                    view->current_start_index - view->MAX_BATCH : 0;
                view->update(new_index); }, LV_EVENT_SHORT_CLICKED, this);
        }

        for (size_t i = current_start_index; i < total_entries; ++i) {
            auto entry = entries[i];

            createDirEntryWidget(dir_entry_list, entry);
            count++;

            if (count >= MAX_BATCH) {
                break;
            }
        }

        last_loaded_index = std::min(current_start_index + count, total_entries);

        if (!is_root && last_loaded_index < total_entries) {
            if (total_entries > current_start_index &&
                (total_entries - current_start_index) > MAX_BATCH) {
                auto* next_btn = lv_list_add_btn(dir_entry_list, LV_SYMBOL_RIGHT, "Next");
                lv_obj_add_event_cb(next_btn, [](lv_event_t* event) {
                    auto* view = static_cast<View*>(lv_event_get_user_data(event));
                    view->update(view->last_loaded_index); }, LV_EVENT_SHORT_CLICKED, this);
            }
        } else {
            last_loaded_index = total_entries;
        }
    });

    if (is_root) {