feat: supported background TTS with media session controls, closes #2099 and closes #964 (#2138)

apps/readest-app/src-tauri/plugins/tauri-plugin-native-tts/src/commands.rs

@@ -51,3 +51,27 @@ pub(crate) async fn set_voice<R: Runtime>(app: AppHandle<R>, payload: SetVoiceAr
 pub(crate) async fn get_all_voices<R: Runtime>(app: AppHandle<R>) -> Result<GetVoicesResponse> {
     app.native_tts().get_all_voices()
 }
+
+#[command]
+pub(crate) async fn set_media_session_active<R: Runtime>(
+    app: AppHandle<R>,
+    payload: SetMediaSessionActiveRequest,
+) -> Result<()> {
+    app.native_tts().set_media_session_active(payload)
+}
+
+#[command]
+pub(crate) async fn update_media_session_state<R: Runtime>(
+    app: AppHandle<R>,
+    payload: UpdateMediaSessionStateRequest,
+) -> Result<()> {
+    app.native_tts().update_media_session_state(payload)
+}
+
+#[command]
+pub(crate) async fn update_media_session_metadata<R: Runtime>(
+    app: AppHandle<R>,
+    payload: UpdateMediaSessionMetadataRequest,
+) -> Result<()> {
+    app.native_tts().update_media_session_metadata(payload)
+}

apps/readest-app/src-tauri/plugins/tauri-plugin-native-tts/src/desktop.rs

@@ -41,4 +41,22 @@ impl<R: Runtime> NativeTts<R> {
     pub fn get_all_voices(&self) -> crate::Result<GetVoicesResponse> {
         Err(crate::Error::UnsupportedPlatformError)
     }
+    pub fn set_media_session_active(
+        &self,
+        _payload: SetMediaSessionActiveRequest,
+    ) -> crate::Result<()> {
+        Err(crate::Error::UnsupportedPlatformError)
+    }
+    pub fn update_media_session_state(
+        &self,
+        _payload: UpdateMediaSessionStateRequest,
+    ) -> crate::Result<()> {
+        Err(crate::Error::UnsupportedPlatformError)
+    }
+    pub fn update_media_session_metadata(
+        &self,
+        _payload: UpdateMediaSessionMetadataRequest,
+    ) -> crate::Result<()> {
+        Err(crate::Error::UnsupportedPlatformError)
+    }
 }

apps/readest-app/src-tauri/plugins/tauri-plugin-native-tts/src/lib.rs

@@ -45,6 +45,9 @@ pub fn init<R: Runtime>() -> TauriPlugin<R> {
             commands::set_pitch,
             commands::set_voice,
             commands::get_all_voices,
+            commands::set_media_session_active,
+            commands::update_media_session_state,
+            commands::update_media_session_metadata,
         ])
         .setup(|app, api| {
             #[cfg(mobile)]

apps/readest-app/src-tauri/plugins/tauri-plugin-native-tts/src/mobile.rs

@@ -87,3 +87,36 @@ impl<R: Runtime> NativeTts<R> {
             .map_err(Into::into)
     }
 }
+
+impl<R: Runtime> NativeTts<R> {
+    pub fn set_media_session_active(
+        &self,
+        payload: SetMediaSessionActiveRequest,
+    ) -> crate::Result<()> {
+        self.0
+            .run_mobile_plugin("set_media_session_active", payload)
+            .map_err(Into::into)
+    }
+}
+
+impl<R: Runtime> NativeTts<R> {
+    pub fn update_media_session_state(
+        &self,
+        payload: UpdateMediaSessionStateRequest,
+    ) -> crate::Result<()> {
+        self.0
+            .run_mobile_plugin("update_media_session_state", payload)
+            .map_err(Into::into)
+    }
+}
+
+impl<R: Runtime> NativeTts<R> {
+    pub fn update_media_session_metadata(
+        &self,
+        payload: UpdateMediaSessionMetadataRequest,
+    ) -> crate::Result<()> {
+        self.0
+            .run_mobile_plugin("update_media_session_metadata", payload)
+            .map_err(Into::into)
+    }
+}

apps/readest-app/src-tauri/plugins/tauri-plugin-native-tts/src/models.rs

@@ -61,3 +61,26 @@ pub struct SetVoiceArgs {
 pub struct GetVoicesResponse {
     pub voices: Vec<TTSVoice>,
 }
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct SetMediaSessionActiveRequest {
+    pub active: bool,
+}
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct UpdateMediaSessionStateRequest {
+    pub playing: bool,
+    pub position: Option<f64>,
+    pub duration: Option<f64>,
+}
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct UpdateMediaSessionMetadataRequest {
+    pub title: Option<String>,
+    pub artist: Option<String>,
+    pub album: Option<String>,
+    pub artwork: Option<String>,
+}