things

crates/common/src/config.rs

@@ -16,6 +16,7 @@ pub struct BarbarConfig {
 #[derive(serde::Deserialize, Serialize, Clone, Copy, Debug)]
 #[serde(rename_all = "lowercase")]
 pub enum Modules {
+    Audio,
     Clock,
     Weather,
     Workspaces,
@@ -24,6 +25,7 @@ pub enum Modules {
 impl Modules {
     pub fn to_string(&self) -> &str {
         match self {
+            Modules::Audio => "audio",
             Modules::Clock => "clock",
             Modules::Weather => "weather",
             Modules::Workspaces => "workspaces",

crates/common/src/display.rs

@@ -3,11 +3,13 @@
 //! Keeps the bar surface's geometry and renderer flags in one place, so `core`
 //! only reads config and hands the result straight to the daemon.
 
-use iced::Pixels;
+use iced::{Font, Pixels};
 use iced_layershell::reexport::{Anchor, KeyboardInteractivity};
 use iced_layershell::settings::{LayerShellSettings, Settings, StartMode};
 use serde::{Deserialize, Serialize};
 
+/// Bar text font, matching quickshell's `CaskaydiaCove NFM`.
+const DEFAULT_FONT: &str = "CaskaydiaCove NFM";
 /// Bar height in logical px when `[display].height` is omitted.
 const DEFAULT_HEIGHT: u32 = 36;
 /// Default text size in logical px.
@@ -75,6 +77,7 @@ impl Display {
     pub fn settings(&self) -> Settings {
         Settings {
             layer_settings: self.layer_settings(),
+            default_font: Font::with_name(DEFAULT_FONT),
             default_text_size: Pixels(self.default_text_size),
             antialiasing: self.antialiasing,
             ..Default::default()

crates/common/src/messages/services/mod.rs

@@ -2,8 +2,10 @@
 
 mod datetime;
 mod hyprland;
+mod pipewire;
 mod weather;
 
 pub use datetime::*;
 pub use hyprland::*;
+pub use pipewire::*;
 pub use weather::*;

crates/common/src/messages/services/pipewire.rs

@@ -0,0 +1,36 @@
+//! PipeWire audio messages.
+
+use crate::Service;
+
+/// Route key a module subscribes under to receive the audio state.
+#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
+pub enum PipewireMsg {
+    State,
+}
+
+impl PipewireMsg {
+    /// Route key a module subscribes under to receive this service's state.
+    pub fn key(self) -> Service {
+        Service(match self {
+            Self::State => "pipewire.state",
+        })
+    }
+}
+
+/// One audio node's level, as PipeWire reports it.
+#[derive(Clone, Copy, PartialEq, Debug, Default)]
+pub struct AudioNode {
+    /// Linear volume fraction: 1.0 is 100%, above 1.0 is boost.
+    pub volume: f32,
+    /// Node is muted; `volume` is still the level it will unmute to.
+    pub muted: bool,
+}
+
+/// Default sink and default source state, published whenever either changes.
+#[derive(Clone, Copy, PartialEq, Debug, Default)]
+pub struct PipewireState {
+    /// Default playback device.
+    pub sink: AudioNode,
+    /// Default capture device.
+    pub source: AudioNode,
+}