fix(settings): persist activation mode across restarts

src-tauri/src/config.rs

@@ -14,6 +14,9 @@ fn config_mutex() -> &'static Mutex<()> {
 /// Default endpointing (seconds) used when the field is absent.
 pub const DEFAULT_ENDPOINTING: f64 = 0.1;
 
+/// Default activation mode used when the field is absent.
+pub const DEFAULT_ACTIVATION_MODE: &str = "push-to-talk";
+
 fn default_hotkey() -> String {
     if cfg!(target_os = "macos") {
         "Fn".to_string()
@@ -33,6 +36,9 @@ struct Config {
     /// Whether to leave the final transcription on the clipboard after a
     /// dictation session (instead of restoring the user's original clipboard).
     copy_to_clipboard: Option<bool>,
+    /// How the trigger key starts a dictation: "push-to-talk" (hold) or
+    /// "toggle" (press once to start, once to stop).
+    activation_mode: Option<String>,
     custom_vocabulary: Option<Vec<CustomVocabEntry>>,
     /// Endpointing duration (seconds of silence before an utterance is
     /// considered final). Missing (older config files) defaults to 0.1 —
@@ -61,6 +67,7 @@ impl Default for Config {
             languages: Some(vec!["en".to_string()]),
             code_switching: Some(false),
             copy_to_clipboard: Some(false),
+            activation_mode: Some(DEFAULT_ACTIVATION_MODE.to_string()),
             custom_vocabulary: Some(default_custom_vocabulary()),
             endpointing: Some(DEFAULT_ENDPOINTING),
             audio_device_selection: Some(AudioDeviceSelection::Automatic),
@@ -88,6 +95,9 @@ impl Config {
         if self.copy_to_clipboard.is_none() {
             self.copy_to_clipboard = defaults.copy_to_clipboard;
         }
+        if self.activation_mode.is_none() {
+            self.activation_mode = defaults.activation_mode;
+        }
         if self.custom_vocabulary.is_none() {
             self.custom_vocabulary = defaults.custom_vocabulary;
         }
@@ -378,6 +388,26 @@ pub async fn get_copy_to_clipboard() -> Result<bool, String> {
     Ok(copy_to_clipboard())
 }
 
+#[tauri::command]
+pub async fn save_activation_mode(mode: String) -> Result<(), String> {
+    if mode != "toggle" && mode != DEFAULT_ACTIVATION_MODE {
+        return Err(format!("Unknown activation mode: {mode}"));
+    }
+    with_config(|config| {
+        config.activation_mode = Some(mode);
+    })
+}
+
+#[tauri::command]
+pub async fn get_activation_mode() -> Result<String, String> {
+    Ok(read_config(|config| {
+        config
+            .activation_mode
+            .clone()
+            .unwrap_or_else(|| DEFAULT_ACTIVATION_MODE.to_string())
+    }))
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

src-tauri/src/main.rs

@@ -1264,6 +1264,8 @@ fn main() {
             config::get_endpointing,
             config::save_copy_to_clipboard,
             config::get_copy_to_clipboard,
+            config::save_activation_mode,
+            config::get_activation_mode,
             config::save_audio_device_selection,
             config::get_audio_device_selection,
             vocabulary::save_custom_vocabulary,

src/App.tsx

@@ -7,6 +7,7 @@ import type {
   TranscriptionHistoryPage,
   AudioDeviceInfo,
   AudioDeviceSelection,
+  ActivationMode,
 } from "./types";
 import { invoke } from "@tauri-apps/api/core";
 import { getVersion } from "@tauri-apps/api/app";
@@ -190,6 +191,7 @@ export default function App() {
   const vocabularySettingsLoaded = useRef(false);
   const endpointingLoaded = useRef(false);
   const copyToClipboardLoaded = useRef(false);
+  const activationModeLoaded = useRef(false);
   const audioDeviceSelectionLoaded = useRef(false);
 
   const isRecordingRef = useRef(false);
@@ -288,6 +290,12 @@ export default function App() {
       enabled: settings.copyToClipboard,
     }).catch(console.error);
   }, [settings.copyToClipboard]);
+  useEffect(() => {
+    if (!activationModeLoaded.current) return;
+    invoke("save_activation_mode", { mode: settings.activationMode }).catch(
+      console.error,
+    );
+  }, [settings.activationMode]);
   useEffect(() => {
     if (!audioDeviceSelectionLoaded.current) return;
     invoke("save_audio_device_selection", {
@@ -463,6 +471,10 @@ export default function App() {
         "get_copy_to_clipboard",
       ).catch(() => false);
 
+      const savedActivationMode = await invoke<ActivationMode>(
+        "get_activation_mode",
+      ).catch(() => "push-to-talk" as ActivationMode);
+
       const savedAudioDeviceSelection = await invoke<AudioDeviceSelection>(
         "get_audio_device_selection",
       ).catch(() => ({ mode: "automatic" }) as AudioDeviceSelection);
@@ -478,13 +490,15 @@ export default function App() {
           : {}),
         endpointing: savedEndpointing,
         copyToClipboard: savedCopyToClipboard,
+        activationMode: savedActivationMode,
         audioDeviceSelection: savedAudioDeviceSelection,
         customVocabulary: savedVocabulary,
       }));
       languageSettingsLoaded.current = true;
       vocabularySettingsLoaded.current = true;
       endpointingLoaded.current = true;
       copyToClipboardLoaded.current = true;
+      activationModeLoaded.current = true;
       audioDeviceSelectionLoaded.current = true;
       setSettingsReady(true);
     };