unleashed-firmware/applications/settings/power_settings_app/power_settings_app.c

#include "power_settings_app.h"

static bool power_settings_custom_event_callback(void* context, uint32_t event) {
    furi_assert(context);
    PowerSettingsApp* app = context;
    return scene_manager_handle_custom_event(app->scene_manager, event);
}

static bool power_settings_back_event_callback(void* context) {
    furi_assert(context);
    PowerSettingsApp* app = context;
    return scene_manager_handle_back_event(app->scene_manager);
}

static void power_settings_tick_event_callback(void* context) {
    furi_assert(context);
    PowerSettingsApp* app = context;
    scene_manager_handle_tick_event(app->scene_manager);
}

PowerSettingsApp* power_settings_app_alloc(uint32_t first_scene) {
    PowerSettingsApp* app = malloc(sizeof(PowerSettingsApp));

    // Records
    app->gui = furi_record_open(RECORD_GUI);
    app->power = furi_record_open(RECORD_POWER);

    // View dispatcher
    app->view_dispatcher = view_dispatcher_alloc();
    app->scene_manager = scene_manager_alloc(&power_settings_scene_handlers, app);
    view_dispatcher_set_event_callback_context(app->view_dispatcher, app);
    view_dispatcher_set_custom_event_callback(
        app->view_dispatcher, power_settings_custom_event_callback);
    view_dispatcher_set_navigation_event_callback(
        app->view_dispatcher, power_settings_back_event_callback);
    view_dispatcher_set_tick_event_callback(
        app->view_dispatcher, power_settings_tick_event_callback, 2000);
    view_dispatcher_attach_to_gui(app->view_dispatcher, app->gui, ViewDispatcherTypeFullscreen);

    // Views
    app->battery_info = battery_info_alloc();
    view_dispatcher_add_view(
        app->view_dispatcher,
        PowerSettingsAppViewBatteryInfo,
        battery_info_get_view(app->battery_info));
    app->submenu = submenu_alloc();
    view_dispatcher_add_view(
        app->view_dispatcher, PowerSettingsAppViewSubmenu, submenu_get_view(app->submenu));
    app->dialog = dialog_ex_alloc();
    view_dispatcher_add_view(
        app->view_dispatcher, PowerSettingsAppViewDialog, dialog_ex_get_view(app->dialog));

    // Set first scene
    scene_manager_next_scene(app->scene_manager, first_scene);
    return app;
}

void power_settings_app_free(PowerSettingsApp* app) {
    furi_assert(app);
    // Views
    view_dispatcher_remove_view(app->view_dispatcher, PowerSettingsAppViewBatteryInfo);
    battery_info_free(app->battery_info);
    view_dispatcher_remove_view(app->view_dispatcher, PowerSettingsAppViewSubmenu);
    submenu_free(app->submenu);
    view_dispatcher_remove_view(app->view_dispatcher, PowerSettingsAppViewDialog);
    dialog_ex_free(app->dialog);
    // View dispatcher
    view_dispatcher_free(app->view_dispatcher);
    scene_manager_free(app->scene_manager);
    // Records
    furi_record_close(RECORD_POWER);
    furi_record_close(RECORD_GUI);
    free(app);
}

int32_t power_settings_app(void* p) {
    uint32_t first_scene = PowerSettingsAppSceneStart;
    if(p && strlen(p) && !strcmp(p, "off")) {
        first_scene = PowerSettingsAppScenePowerOff;
    }
    PowerSettingsApp* app = power_settings_app_alloc(first_scene);
    view_dispatcher_run(app->view_dispatcher);
    power_settings_app_free(app);
    return 0;
}