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|
use futures_util::StreamExt;
#[zbus::proxy(
interface = "org.freedesktop.login1.Manager",
default_service = "org.freedesktop.login1",
default_path = "/org/freedesktop/login1"
)]
trait LoginManager {
fn inhibit(&self, what: &str, who: &str, why: &str, mode: &str) -> zbus::Result<zvariant::OwnedFd>;
}
#[zbus::proxy(
interface = "org.freedesktop.login1.Session",
default_service = "org.freedesktop.login1",
default_path = "/org/freedesktop/login1/session/auto"
)]
trait LoginSession {
#[zbus(property)]
fn locked_hint(&self) -> zbus::Result<bool>;
fn set_locked_hint(&self, value: bool) -> zbus::Result<()>;
}
#[derive(zvariant::DeserializeDict, zvariant::SerializeDict, zvariant::Type, PartialEq, Eq)]
#[zvariant(signature = "dict")]
struct InhibitOptions {
reason: zvariant::Optional<String>
}
#[derive(zvariant::Type, serde::Serialize, serde::Deserialize)]
#[zvariant(signature = "u")]
enum SessionState {
Running,
QueryEnd,
Ending
}
#[derive(zvariant::DeserializeDict, zvariant::SerializeDict, zvariant::Type)]
#[zvariant(signature = "dict")]
struct State {
screensaver_active: bool,
session_state: SessionState,
}
struct Request {
app_id: String,
path: zvariant::OwnedObjectPath,
inhibitor: Option<zvariant::OwnedFd>
}
#[zbus::interface(name = "org.freedesktop.impl.portal.Request")]
impl Request {
async fn close(&mut self, #[zbus(object_server)] object_server: &zbus::ObjectServer) -> zbus::fdo::Result<()> {
// Drop the file descriptor that represents the inhibitions.
self.inhibitor.take();
// This might not actually deadlock if I'm lucky.
object_server.remove::<Self, zvariant::ObjectPath<'_>>(self.path.as_ref()).await?;
Ok(())
}
}
struct Session {
app_id: String,
path: zvariant::OwnedObjectPath,
}
#[zbus::interface(name = "org.freedesktop.impl.portal.Session")]
impl Session {
#[zbus(property)]
fn version(&self) -> u32 {
1
}
async fn close(
&mut self,
#[zbus(object_server)] object_server: &zbus::ObjectServer,
#[zbus(signal_emitter)] signal_emitter: zbus::object_server::SignalEmitter<'_>
) -> zbus::fdo::Result<()> {
Self::closed(&signal_emitter).await?;
// This might not actually deadlock if I'm lucky.
object_server.remove::<Self, zvariant::ObjectPath<'_>>(self.path.as_ref()).await?;
Ok(())
}
#[zbus(signal)]
async fn closed(signal_emitter: &zbus::object_server::SignalEmitter<'_>) -> zbus::Result<()>;
}
struct InhibitService {
logind: LoginManagerProxy<'static>,
sessions: Vec<zvariant::ObjectPath<'static>>
}
#[zbus::interface(name = "org.freedesktop.impl.portal.Inhibit")]
impl InhibitService {
/// Inhibits session status changes. As a side-effect of this
/// call, a `Request` object is exported on the object path
/// handle. To end the inhibition, call
/// `org.freedesktop.impl.portal.Request.Close` on that object.
///
/// The flags determine what changes are inhibited:
///
/// - `1`: Logout
/// - `2`: User Switch
/// - `4`: Suspend
/// - `8`: Idle
#[allow(clippy::too_many_arguments)]
async fn inhibit(
&self,
handle: zvariant::ObjectPath<'_>,
app_id: &str,
#[allow(unused_variables)] window: &str,
flags: u32,
options: InhibitOptions,
#[zbus(object_server)] object_server: &zbus::ObjectServer,
) -> zbus::fdo::Result<()> {
let mut what: Vec<&'static str> = vec![];
if (flags & 1) == 1 || (flags & 2) == 2 {
what.push("shutdown");
}
if (flags & 4) == 4 {
what.push("sleep");
}
if (flags & 8) == 8 {
what.push("idle");
}
object_server.at(handle.clone(), Request {
app_id: app_id.to_owned(),
inhibitor: Some(self.logind.inhibit(
&what.join(":"),
app_id,
options.reason.as_deref().unwrap_or_default(),
"block"
).await?),
path: handle.to_owned().into()
}).await?;
Ok(())
}
/// Creates a monitoring session. While this session is active,
/// the caller will receive StateChanged signals with updates on
/// the session state.
async fn create_monitor(
&mut self,
#[allow(unused_variables)] handle: zvariant::ObjectPath<'_>,
session_handle: zvariant::ObjectPath<'_>,
app_id: &str,
#[allow(unused_variables)] window: &str,
#[zbus(object_server)] object_server: &zbus::ObjectServer,
) -> zbus::fdo::Result<u32> {
let session = Session {
app_id: app_id.to_owned(),
path: session_handle.clone().into_owned().into()
};
object_server.at(&session_handle, session).await?;
self.sessions.push(session_handle.clone().into_owned());
Ok(0)
}
#[zbus(signal)]
async fn state_changed(
signal_emitter: &zbus::object_server::SignalEmitter<'_>,
session_handle: zvariant::ObjectPath<'_>,
state: State,
) -> zbus::Result<()>;
/// Acknowledges that the caller received the
/// `Inhibit::state_changed` signal. This method should be called
/// within one second of receiving a
/// [`state_changed`][Inhibit::state_changed] signal with
/// [`State::QueryEnd`].
async fn query_end_response(&self, session_handle: zvariant::ObjectPath<'_>) {
todo!()
}
}
#[tokio::main]
async fn main() -> Result<(), zbus::Error> {
let system_bus = zbus::connection::Builder::system()?.build().await?;
let service = InhibitService {
logind: LoginManagerProxy::builder(&system_bus).build().await?,
sessions: Default::default(),
};
let _conn = zbus::connection::Builder::session()?
.name("xyz.vikanezrimaya.fdo.portal.Systemd")?
.serve_at("/", service)?
.build()
.await?;
// This seems broken.
let session = LoginSessionProxy::builder(&system_bus)
.cache_properties(zbus::proxy::CacheProperties::Lazily)
.build()
.await?;
dbg!(&session);
let mut lock_changes: zbus::proxy::PropertyStream<'_, bool> = session.receive_locked_hint_changed().await;
loop {
let change = lock_changes.next().await.expect("property stream broke");
let service = _conn.object_server().interface::<_, InhibitService>("/").await?;
let locked = dbg!(change.get().await?);
let sessions = dbg!(service.get().await.sessions.clone());
for session in sessions {
InhibitService::state_changed(service.signal_emitter(), session, State {
screensaver_active: locked,
session_state: SessionState::Running,
}).await?;
}
eprintln!("finished processing lock/unlock event");
}
}
|
