use wayland_client::globals::registry_queue_init;
use wayland_client::globals::GlobalListContents;
use wayland_client::protocol::wl_registry::{Event, WlRegistry};
use wayland_client::{Connection, Dispatch, QueueHandle};

struct Ls;

impl Dispatch<WlRegistry, GlobalListContents> for Ls {
    fn event(
        _state: &mut Self,
        _registry: &WlRegistry,
        _event: Event,
        _data: &GlobalListContents,
        _conn: &Connection,
        _qhandle: &QueueHandle<Self>,
    ) {
    }
}

fn main() {
    let conn = Connection::connect_to_env().unwrap();
    let (globals, _queue) = registry_queue_init::<Ls>(&conn).unwrap();
    for g in globals.contents().clone_list() {
        println!("{}: {} v{}", g.name, g.interface, g.version);
    }
}