feat(audio): add fallback when title/artist not found

cosmic-applet-audio/Cargo.toml

@@ -23,3 +23,4 @@ mpris2-zbus = { git = "https://github.com/pop-os/dbus-settings-bindings" }
 serde = "1.0.130"
 url = "2"
 zbus.workspace = true
+urlencoding = "2.1.3"

cosmic-applet-audio/i18n/en/cosmic_applet_audio.ftl

@@ -4,3 +4,4 @@ show-media-controls = Show Media Controls on Top Panel
 sound-settings = Sound Settings...
 disconnected = PulseAudio Disconnected
 no-device = No device selected
+unknown-artist = Unknown

cosmic-applet-audio/src/main.rs

@@ -718,7 +718,7 @@ impl cosmic::Application for Audio {
                     artists
                 }
             } else {
-                String::new()
+                fl!("unknown-artist")
             };
 
             elements.push(column![text(title).size(14), text(artists).size(10),].into());

cosmic-applet-audio/src/mpris_subscription.rs

@@ -9,6 +9,7 @@ use mpris2_zbus::{
     player::{PlaybackStatus, Player},
 };
 use tokio::join;
+use urlencoding::decode;
 use zbus::{fdo::DBusProxy, Connection};
 
 #[derive(Clone, Debug)]
@@ -27,7 +28,16 @@ pub struct PlayerStatus {
 impl PlayerStatus {
     async fn new(player: Player) -> Option<Self> {
         let metadata = player.metadata().await.ok()?;
-        let title = metadata.title().map(Cow::from);
+        let pathname = metadata.url().unwrap_or("".into());
+        let pathbuf = PathBuf::from(pathname);
+
+        let title = metadata
+            .title()
+            .or(pathbuf
+                .file_name()
+                .and_then(|s| s.to_str())
+                .and_then(|s| decode(s).map_or(None, |s| Some(s.into_owned()))))
+            .map(Cow::from);
         let artists = metadata
             .artists()
             .map(|a| a.into_iter().map(Cow::from).collect::<Vec<_>>());