Expose DBus protocol with signals indicating when shown/hidden

src/dbus.rs

@@ -0,0 +1,37 @@
+struct CosmicWorkspaces;
+
+#[zbus::interface(name = "com.system76.CosmicWorkspaces")]
+impl CosmicWorkspaces {
+    #[zbus(signal)]
+    async fn shown(&self, _emitter: &zbus::object_server::SignalEmitter<'_>) -> zbus::Result<()>;
+    #[zbus(signal)]
+    async fn hidden(&self, _emitter: &zbus::object_server::SignalEmitter<'_>) -> zbus::Result<()>;
+}
+
+#[derive(Clone, Debug)]
+pub struct Interface {
+    emitter: zbus::object_server::SignalEmitter<'static>,
+}
+
+impl Interface {
+    pub async fn new(conn: zbus::Connection) -> zbus::Result<Self> {
+        conn.object_server()
+            .at("/com/system76/CosmicWorkspaces", CosmicWorkspaces)
+            .await?;
+        Ok(Interface {
+            emitter: zbus::object_server::SignalEmitter::new(
+                &conn,
+                "/com/system76/CosmicWorkspaces",
+            )
+            .unwrap(),
+        })
+    }
+
+    pub async fn shown(&self) -> zbus::Result<()> {
+        CosmicWorkspaces.shown(&self.emitter).await
+    }
+
+    pub async fn hidden(&self) -> zbus::Result<()> {
+        CosmicWorkspaces.hidden(&self.emitter).await
+    }
+}