flipperzero-firmware/applications/lfrfid/scene/lfrfid_app_scene_saved_info.cpp

#include "lfrfid_app_scene_saved_info.h"
#include "../view/elements/button_element.h"
#include "../view/elements/icon_element.h"
#include "../view/elements/string_element.h"

void LfRfidAppSceneSavedInfo::on_enter(LfRfidApp* app, bool need_restore) {
    string_init(string_data);
    string_init(string_decrypted);

    auto container = app->view_controller.get<ContainerVM>();

    auto button = container->add<ButtonElement>();
    button->set_type(ButtonElement::Type::Left, "Back");
    button->set_callback(app, LfRfidAppSceneSavedInfo::back_callback);

    auto line_1 = container->add<StringElement>();
    auto line_2 = container->add<StringElement>();
    auto line_3 = container->add<StringElement>();
    auto line_4 = container->add<StringElement>();

    RfidKey& key = app->worker.key;
    const uint8_t* data = key.get_data();

    for(uint8_t i = 0; i < key.get_type_data_count(); i++) {
        if(i != 0) {
            string_cat_printf(string_data, " ");
        }
        string_cat_printf(string_data, "%02X", data[i]);
    }

    line_1->set_text(key.get_name(), 64, 17, AlignCenter, AlignBottom, FontSecondary);
    line_2->set_text(string_get_cstr(string_data), 64, 29, AlignCenter, AlignBottom, FontPrimary);

    switch(key.get_type()) {
    case LfrfidKeyType::KeyEM4100:
        string_printf(
            string_decrypted, "%03u,%05u", data[2], (uint16_t)((data[3] << 8) | (data[4])));

        break;
    case LfrfidKeyType::KeyH10301:
    case LfrfidKeyType::KeyI40134:
        string_printf(
            string_decrypted, "FC: %u    ID: %u", data[0], (uint16_t)((data[1] << 8) | (data[2])));
        break;
    }
    line_3->set_text(
        string_get_cstr(string_decrypted), 64, 39, AlignCenter, AlignBottom, FontSecondary);

    line_4->set_text(
        lfrfid_key_get_type_string(key.get_type()),
        64,
        49,
        AlignCenter,
        AlignBottom,
        FontSecondary);

    app->view_controller.switch_to<ContainerVM>();
}

bool LfRfidAppSceneSavedInfo::on_event(LfRfidApp* app, LfRfidApp::Event* event) {
    bool consumed = false;

    return consumed;
}

void LfRfidAppSceneSavedInfo::on_exit(LfRfidApp* app) {
    app->view_controller.get<ContainerVM>()->clean();
    string_clear(string_data);
    string_clear(string_decrypted);
}

void LfRfidAppSceneSavedInfo::back_callback(void* context) {
    LfRfidApp* app = static_cast<LfRfidApp*>(context);
    LfRfidApp::Event event;
    event.type = LfRfidApp::EventType::Back;
    app->view_controller.send_event(&event);
}