hamlocator/src/location.vala

// Taken from https://github.com/ryonakano/atlas/blob/main/src/GeoClue.vala

namespace Hamlocator {
    public struct LocationResult {
        public GClue.Location? loc;
        public string? err;
    }

    public class Location : Object {
        private GClue.Simple? simple;

        public Location () {
        }

        public async LocationResult get_current_location () {
            if (simple == null) {
                try {
                    simple = yield new GClue.Simple ("eu.fl9.hamlocator", GClue.AccuracyLevel.NEIGHBORHOOD, null);
                } catch (Error e) {
                    warning ("Failed to connect to GeoClue2 service: %s", e.message);
                    return LocationResult() { err = e.message };
                }
            }

            return LocationResult() { loc = simple.get_location() };
        }
    }
}