android: OS-level mic mute on stem press during calls + independent head gesture toggles

android/app/src/main/java/me/kavishdevar/librepods/data/StemAction.kt

@@ -25,7 +25,8 @@ enum class StemAction {
     PREVIOUS_TRACK,
     NEXT_TRACK,
     DIGITAL_ASSISTANT,
-    CYCLE_NOISE_CONTROL_MODES;
+    CYCLE_NOISE_CONTROL_MODES,
+    MUTE_CALL;
     companion object {
         fun fromString(action: String): StemAction? {
             return entries.find { it.name == action }

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/AirPodsSettingsScreen.kt

@@ -390,9 +390,8 @@ fun AirPodsSettingsScreen(viewModel: AirPodsViewModel, navController: NavControl
                             to = "head_tracking",
                             name = stringResource(R.string.head_gestures),
                             navController = navController,
-                            currentState = if (sharedPreferences.getBoolean(
-                                    "head_gestures", false
-                                )
+                            currentState = if (sharedPreferences.getBoolean("head_gestures_answer_call", true)
+                                || sharedPreferences.getBoolean("head_gestures_mute_call", true)
                             ) stringResource(R.string.on) else stringResource(R.string.off)
                         )
                     }

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/HeadTrackingScreen.kt

@@ -194,13 +194,22 @@ fun HeadTrackingScreen(viewModel: AirPodsViewModel, navController: NavController
                 }
 
                 StyledToggle(
-                    label = "Head Gestures",
-                    checked = state.headGesturesEnabled,
-                    onCheckedChange = { viewModel.setHeadGesturesEnabled(it) },
-                    enabled = state.isPremium || state.headGesturesEnabled,
-                    description = stringResource(R.string.head_gestures_details)
+                    label = "Answer/decline incoming calls",
+                    checked = state.headGesturesAnswerCall,
+                    onCheckedChange = { viewModel.setHeadGesturesAnswerCall(it) },
+                    enabled = state.isPremium || state.headGesturesAnswerCall,
+                    description = "Nod to answer an incoming call, shake your head to decline."
                 )
 
+                StyledToggle(
+                    label = "Mute/unmute during a call",
+                    checked = state.headGesturesMuteCall,
+                    onCheckedChange = { viewModel.setHeadGesturesMuteCall(it) },
+                    enabled = state.isPremium || state.headGesturesMuteCall,
+                    description = "Shake your head during an active call to mute the mic, nod to unmute."
+                )
+
+
                 Spacer(modifier = Modifier.height(16.dp))
                 Text(
                     "Head Orientation",

android/app/src/main/java/me/kavishdevar/librepods/presentation/viewmodel/AirPodsViewModel.kt

@@ -74,7 +74,8 @@ data class AirPodsUiState(
     val version3: String = "",
 
     val headTrackingActive: Boolean = false,
-    val headGesturesEnabled: Boolean = true,
+    val headGesturesAnswerCall: Boolean = true,
+    val headGesturesMuteCall: Boolean = true,
 
     val eqData: FloatArray = floatArrayOf(),
 
@@ -177,7 +178,8 @@ class AirPodsViewModel(
                         ControlCommandIdentifiers.CONVERSATION_DETECT_CONFIG,
                         false
                     )
-                    setHeadGesturesEnabled(false)
+                    setHeadGesturesAnswerCall(false)
+                    setHeadGesturesMuteCall(false)
                 }
                 _uiState.update { it.copy(isPremium = premium) }
             }
@@ -340,7 +342,8 @@ class AirPodsViewModel(
             sharedPreferences.getBoolean("automatic_ear_detection", true)
         val automaticConnectionEnabled =
             sharedPreferences.getBoolean("automatic_connection_ctrl_cmd", true)
-        val headGesturesEnabled = sharedPreferences.getBoolean("head_gestures", true)
+        val headGesturesAnswerCall = sharedPreferences.getBoolean("head_gestures_answer_call", true)
+        val headGesturesMuteCall = sharedPreferences.getBoolean("head_gestures_mute_call", true)
         val leftAction = StemAction.valueOf(
             sharedPreferences.getString(
                 "left_long_press_action",
@@ -363,7 +366,8 @@ class AirPodsViewModel(
                 offListeningMode = offListeningModeEnabled,
                 automaticEarDetectionEnabled = automaticEarDetectionEnabled,
                 automaticConnectionEnabled = automaticConnectionEnabled,
-                headGesturesEnabled = headGesturesEnabled,
+                headGesturesAnswerCall = headGesturesAnswerCall,
+                headGesturesMuteCall = headGesturesMuteCall,
                 leftAction = leftAction,
                 rightAction = rightAction,
                 vendorIdHook = vendorIdHook,
@@ -381,10 +385,17 @@ class AirPodsViewModel(
         }
     }
 
-    fun setHeadGesturesEnabled(enabled: Boolean) {
-        sharedPreferences.edit { putBoolean("head_gestures", enabled) }
+    fun setHeadGesturesAnswerCall(enabled: Boolean) {
+        sharedPreferences.edit { putBoolean("head_gestures_answer_call", enabled) }
         _uiState.update {
-            it.copy(headGesturesEnabled = enabled)
+            it.copy(headGesturesAnswerCall = enabled)
+        }
+    }
+
+    fun setHeadGesturesMuteCall(enabled: Boolean) {
+        sharedPreferences.edit { putBoolean("head_gestures_mute_call", enabled) }
+        _uiState.update {
+            it.copy(headGesturesMuteCall = enabled)
         }
     }