feat: add networkmanager module

src/clients/mod.rs

@@ -12,6 +12,8 @@ pub mod compositor;
 pub mod lua;
 #[cfg(feature = "music")]
 pub mod music;
+#[cfg(feature = "network_manager")]
+pub mod networkmanager;
 #[cfg(feature = "notifications")]
 pub mod swaync;
 #[cfg(feature = "tray")]
@@ -35,6 +37,8 @@ pub struct Clients {
     lua: Option<Rc<lua::LuaEngine>>,
     #[cfg(feature = "music")]
     music: std::collections::HashMap<music::ClientType, Arc<dyn music::MusicClient>>,
+    #[cfg(feature = "network_manager")]
+    network_manager: Option<Arc<networkmanager::Client>>,
     #[cfg(feature = "notifications")]
     notifications: Option<Arc<swaync::Client>>,
     #[cfg(feature = "tray")]
@@ -96,6 +100,18 @@ impl Clients {
             .clone()
     }
 
+    #[cfg(feature = "network_manager")]
+    pub fn network_manager(&mut self) -> ClientResult<networkmanager::Client> {
+        match &self.network_manager {
+            Some(client) => Ok(client.clone()),
+            None => {
+                let client = networkmanager::create_client()?;
+                self.network_manager = Some(client.clone());
+                Ok(client)
+            }
+        }
+    }
+
     #[cfg(feature = "notifications")]
     pub fn notifications(&mut self) -> ClientResult<swaync::Client> {
         let client = match &self.notifications {

src/clients/networkmanager.rs

@@ -0,0 +1,169 @@
+use std::sync::Arc;
+
+use color_eyre::Result;
+use futures_signals::signal::{Mutable, MutableSignalCloned};
+use tracing::error;
+use zbus::blocking::fdo::PropertiesProxy;
+use zbus::blocking::Connection;
+use zbus::{
+    dbus_proxy,
+    names::InterfaceName,
+    zvariant::{ObjectPath, Str},
+};
+
+use crate::{register_fallible_client, spawn_blocking};
+
+const DBUS_BUS: &str = "org.freedesktop.NetworkManager";
+const DBUS_PATH: &str = "/org/freedesktop/NetworkManager";
+const DBUS_INTERFACE: &str = "org.freedesktop.NetworkManager";
+
+#[derive(Debug)]
+pub struct Client {
+    client_state: Mutable<ClientState>,
+    interface_name: InterfaceName<'static>,
+    dbus_connection: Connection,
+    props_proxy: PropertiesProxy<'static>,
+}
+
+#[derive(Clone, Debug)]
+pub enum ClientState {
+    WiredConnected,
+    WifiConnected,
+    CellularConnected,
+    VpnConnected,
+    WifiDisconnected,
+    Offline,
+    Unknown,
+}
+
+#[dbus_proxy(
+    default_service = "org.freedesktop.NetworkManager",
+    interface = "org.freedesktop.NetworkManager",
+    default_path = "/org/freedesktop/NetworkManager"
+)]
+trait NetworkManagerDbus {
+    #[dbus_proxy(property)]
+    fn active_connections(&self) -> Result<Vec<ObjectPath>>;
+
+    #[dbus_proxy(property)]
+    fn devices(&self) -> Result<Vec<ObjectPath>>;
+
+    #[dbus_proxy(property)]
+    fn networking_enabled(&self) -> Result<bool>;
+
+    #[dbus_proxy(property)]
+    fn primary_connection(&self) -> Result<ObjectPath>;
+
+    #[dbus_proxy(property)]
+    fn primary_connection_type(&self) -> Result<Str>;
+
+    #[dbus_proxy(property)]
+    fn wireless_enabled(&self) -> Result<bool>;
+}
+
+impl Client {
+    fn new() -> Result<Self> {
+        let client_state = Mutable::new(ClientState::Unknown);
+        let dbus_connection = Connection::system()?;
+        let interface_name = InterfaceName::from_static_str(DBUS_INTERFACE)?;
+        let props_proxy = PropertiesProxy::builder(&dbus_connection)
+            .destination(DBUS_BUS)?
+            .path(DBUS_PATH)?
+            .build()?;
+
+        Ok(Self {
+            client_state,
+            interface_name,
+            dbus_connection,
+            props_proxy,
+        })
+    }
+
+    fn run(&self) -> Result<()> {
+        let proxy = NetworkManagerDbusProxyBlocking::new(&self.dbus_connection)?;
+
+        let mut primary_connection = proxy.primary_connection()?;
+        let mut primary_connection_type = proxy.primary_connection_type()?;
+        let mut wireless_enabled = proxy.wireless_enabled()?;
+
+        self.client_state.set(determine_state(
+            &primary_connection,
+            &primary_connection_type,
+            wireless_enabled,
+        ));
+
+        for change in self.props_proxy.receive_properties_changed()? {
+            let args = change.args()?;
+            if args.interface_name != self.interface_name {
+                continue;
+            }
+
+            let changed_props = args.changed_properties;
+            let mut relevant_prop_changed = false;
+
+            if changed_props.contains_key("PrimaryConnection") {
+                primary_connection = proxy.primary_connection()?;
+                relevant_prop_changed = true;
+            }
+            if changed_props.contains_key("PrimaryConnectionType") {
+                primary_connection_type = proxy.primary_connection_type()?;
+                relevant_prop_changed = true;
+            }
+            if changed_props.contains_key("WirelessEnabled") {
+                wireless_enabled = proxy.wireless_enabled()?;
+                relevant_prop_changed = true;
+            }
+
+            if relevant_prop_changed {
+                self.client_state.set(determine_state(
+                    &primary_connection,
+                    &primary_connection_type,
+                    wireless_enabled,
+                ));
+            }
+        }
+
+        Ok(())
+    }
+
+    pub fn subscribe(&self) -> MutableSignalCloned<ClientState> {
+        self.client_state.signal_cloned()
+    }
+}
+
+pub fn create_client() -> Result<Arc<Client>> {
+    let client = Arc::new(Client::new()?);
+    {
+        let client = client.clone();
+        spawn_blocking(move || {
+            if let Err(error) = client.run() {
+                error!("{}", error);
+            };
+        });
+    }
+    Ok(client)
+}
+
+fn determine_state(
+    primary_connection: &str,
+    primary_connection_type: &str,
+    wireless_enabled: bool,
+) -> ClientState {
+    if primary_connection == "/" {
+        if wireless_enabled {
+            ClientState::WifiDisconnected
+        } else {
+            ClientState::Offline
+        }
+    } else {
+        match primary_connection_type {
+            "802-3-ethernet" | "adsl" | "pppoe" => ClientState::WiredConnected,
+            "802-11-olpc-mesh" | "802-11-wireless" | "wifi-p2p" => ClientState::WifiConnected,
+            "cdma" | "gsm" | "wimax" => ClientState::CellularConnected,
+            "vpn" | "wireguard" => ClientState::VpnConnected,
+            _ => ClientState::Unknown,
+        }
+    }
+}
+
+register_fallible_client!(Client, network_manager);

src/config/mod.rs

@@ -16,6 +16,8 @@ use crate::modules::label::LabelModule;
 use crate::modules::launcher::LauncherModule;
 #[cfg(feature = "music")]
 use crate::modules::music::MusicModule;
+#[cfg(feature = "network_manager")]
+use crate::modules::networkmanager::NetworkManagerModule;
 #[cfg(feature = "notifications")]
 use crate::modules::notifications::NotificationsModule;
 use crate::modules::script::ScriptModule;
@@ -60,6 +62,8 @@ pub enum ModuleConfig {
     Launcher(Box<LauncherModule>),
     #[cfg(feature = "music")]
     Music(Box<MusicModule>),
+    #[cfg(feature = "network_manager")]
+    NetworkManager(Box<NetworkManagerModule>),
     #[cfg(feature = "notifications")]
     Notifications(Box<NotificationsModule>),
     Script(Box<ScriptModule>),
@@ -103,6 +107,8 @@ impl ModuleConfig {
             Self::Launcher(module) => create!(module),
             #[cfg(feature = "music")]
             Self::Music(module) => create!(module),
+            #[cfg(feature = "network_manager")]
+            Self::NetworkManager(module) => create!(module),
             #[cfg(feature = "notifications")]
             Self::Notifications(module) => create!(module),
             Self::Script(module) => create!(module),

src/modules/mod.rs

@@ -36,6 +36,8 @@ pub mod label;
 pub mod launcher;
 #[cfg(feature = "music")]
 pub mod music;
+#[cfg(feature = "network_manager")]
+pub mod networkmanager;
 #[cfg(feature = "notifications")]
 pub mod notifications;
 pub mod script;
@@ -285,6 +287,8 @@ pub trait ModuleFactory {
         let id = Ironbar::unique_id();
         let common = module.take_common();
 
+        debug!("adding module {} (id: {})", TModule::name(), id);
+
         let (ui_tx, ui_rx) = mpsc::channel::<ModuleUpdateEvent<TSend>>(64);
         let (controller_tx, controller_rx) = mpsc::channel::<TRev>(64);
 

src/modules/networkmanager.rs

@@ -0,0 +1,88 @@
+use color_eyre::Result;
+use futures_lite::StreamExt;
+use futures_signals::signal::SignalExt;
+use gtk::prelude::ContainerExt;
+use gtk::{Box as GtkBox, Image, Orientation};
+use serde::Deserialize;
+use tokio::sync::mpsc::Receiver;
+
+use crate::clients::networkmanager::{Client, ClientState};
+use crate::config::CommonConfig;
+use crate::gtk_helpers::IronbarGtkExt;
+use crate::image::ImageProvider;
+use crate::modules::{Module, ModuleInfo, ModuleParts, ModuleUpdateEvent, WidgetContext};
+use crate::{glib_recv, module_impl, send_async, spawn};
+
+#[derive(Debug, Deserialize, Clone)]
+#[cfg_attr(feature = "schema", derive(schemars::JsonSchema))]
+pub struct NetworkManagerModule {
+    #[serde(default = "default_icon_size")]
+    icon_size: i32,
+
+    #[serde(flatten)]
+    pub common: Option<CommonConfig>,
+}
+
+const fn default_icon_size() -> i32 {
+    24
+}
+
+impl Module<GtkBox> for NetworkManagerModule {
+    type SendMessage = ClientState;
+    type ReceiveMessage = ();
+
+    module_impl!("network_manager");
+
+    fn spawn_controller(
+        &self,
+        _: &ModuleInfo,
+        context: &WidgetContext<ClientState, ()>,
+        _: Receiver<()>,
+    ) -> Result<()> {
+        let client = context.try_client::<Client>()?;
+        let mut client_signal = client.subscribe().to_stream();
+        let widget_transmitter = context.tx.clone();
+
+        spawn(async move {
+            while let Some(state) = client_signal.next().await {
+                send_async!(widget_transmitter, ModuleUpdateEvent::Update(state));
+            }
+        });
+
+        Ok(())
+    }
+
+    fn into_widget(
+        self,
+        context: WidgetContext<ClientState, ()>,
+        info: &ModuleInfo,
+    ) -> Result<ModuleParts<GtkBox>> {
+        let container = GtkBox::new(Orientation::Horizontal, 0);
+        let icon = Image::new();
+        icon.add_class("icon");
+        container.add(&icon);
+
+        let icon_theme = info.icon_theme.clone();
+
+        let initial_icon_name = "content-loading-symbolic";
+        ImageProvider::parse(initial_icon_name, &icon_theme, false, self.icon_size)
+            .map(|provider| provider.load_into_image(icon.clone()));
+
+        let widget_receiver = context.subscribe();
+        glib_recv!(widget_receiver, state => {
+            let icon_name = match state {
+                ClientState::WiredConnected => "network-wired-symbolic",
+                ClientState::WifiConnected => "network-wireless-symbolic",
+                ClientState::CellularConnected => "network-cellular-symbolic",
+                ClientState::VpnConnected => "network-vpn-symbolic",
+                ClientState::WifiDisconnected => "network-wireless-acquiring-symbolic",
+                ClientState::Offline => "network-wireless-disabled-symbolic",
+                ClientState::Unknown => "dialog-question-symbolic",
+            };
+            ImageProvider::parse(icon_name, &icon_theme, false, self.icon_size)
+                .map(|provider| provider.load_into_image(icon.clone()));
+        });
+
+        Ok(ModuleParts::new(container, None))
+    }
+}