Add bluetooth toggle button during voice input

java/src/org/futo/inputmethod/latin/uix/actions/VoiceInputAction.kt

@@ -38,6 +38,7 @@ import org.futo.inputmethod.latin.uix.PersistentActionState
 import org.futo.inputmethod.latin.uix.ResourceHelper
 import org.futo.inputmethod.latin.uix.VERBOSE_PROGRESS
 import org.futo.inputmethod.latin.uix.getSetting
+import org.futo.inputmethod.latin.uix.setSetting
 import org.futo.inputmethod.latin.uix.voiceinput.downloader.DownloadActivity
 import org.futo.inputmethod.latin.xlm.UserDictionaryObserver
 import org.futo.inputmethod.updates.openURI
@@ -50,6 +51,7 @@ import org.futo.voiceinput.shared.SoundPlayer
 import org.futo.voiceinput.shared.types.Language
 import org.futo.voiceinput.shared.types.ModelLoader
 import org.futo.voiceinput.shared.types.getLanguageFromWhisperString
+import org.futo.voiceinput.shared.ui.MicrophoneDeviceState
 import org.futo.voiceinput.shared.whisper.DecodingConfiguration
 import org.futo.voiceinput.shared.whisper.ModelManager
 import org.futo.voiceinput.shared.whisper.MultiModelRunConfiguration
@@ -212,9 +214,17 @@ private class VoiceInputActionWindow(
         }
     }
 
-    override fun recordingStarted(device: String) {
+    override fun recordingStarted(device: MicrophoneDeviceState) {
         if (shouldPlaySounds) {
             state.soundPlayer.playStartSound()
+
+            // Only set the setting if bluetooth is available, else it would reset the setting
+            // every time it's used without a bluetooth device connected.
+            if(device.bluetoothAvailable) {
+                manager.getLifecycleScope().launch {
+                    context.setSetting(PREFER_BLUETOOTH, device.bluetoothActive)
+                }
+            }
         }
     }
 

voiceinput-shared/src/main/java/org/futo/voiceinput/shared/AudioRecognizer.kt

@@ -24,6 +24,7 @@ import com.konovalov.vad.config.SampleRate
 import com.konovalov.vad.models.VadModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.cancelAndJoin
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import kotlinx.coroutines.yield
@@ -34,6 +35,7 @@ import org.futo.voiceinput.shared.types.Language
 import org.futo.voiceinput.shared.types.MagnitudeState
 import org.futo.voiceinput.shared.types.ModelInferenceCallback
 import org.futo.voiceinput.shared.types.ModelLoader
+import org.futo.voiceinput.shared.ui.MicrophoneDeviceState
 import org.futo.voiceinput.shared.whisper.DecodingConfiguration
 import org.futo.voiceinput.shared.whisper.ModelManager
 import org.futo.voiceinput.shared.whisper.MultiModelRunConfiguration
@@ -139,24 +141,39 @@ class AudioRecognizer(
         }
     }
 
-    private fun setCommunicationDevice() {
+    private fun isBluetoothAvailable(): Boolean {
-        communicationDevice = "Unset"
-        if(!settings.recordingConfiguration.preferBluetoothMic) return
-
         try {
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
                 val audioManager = context.getSystemService(Context.AUDIO_SERVICE) as AudioManager
                 val devices = audioManager.availableCommunicationDevices
-                val tgtDevice = devices.firstOrNull { it.type == AudioDeviceInfo.TYPE_BLUETOOTH_SCO } ?: devices.firstOrNull { it.type == AudioDeviceInfo.TYPE_BUILTIN_MIC } ?: devices.first()
+
+                return devices.firstOrNull {
+                    it.type == AudioDeviceInfo.TYPE_BLUETOOTH_SCO
+                } != null
+            }
+        } catch(_: Exception) {}
+
+        return false
+    }
+
+    private fun setCommunicationDevice(preferBluetoothMic: Boolean): Pair<Boolean, String> {
+        try {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+                val audioManager = context.getSystemService(Context.AUDIO_SERVICE) as AudioManager
+                val devices = audioManager.availableCommunicationDevices
+                val tgtDevice = devices.firstOrNull {
+                    preferBluetoothMic && it.type == AudioDeviceInfo.TYPE_BLUETOOTH_SCO
+                } ?: devices.firstOrNull { it.type == AudioDeviceInfo.TYPE_BUILTIN_MIC } ?: devices.first()
 
                 if (!audioManager.setCommunicationDevice(tgtDevice)) {
                     audioManager.clearCommunicationDevice()
+                    return Pair(false, "")
                 } else {
-                    communicationDevice =
+                    return Pair(tgtDevice.type == AudioDeviceInfo.TYPE_BLUETOOTH_SCO, tgtDevice.productName.toString())
-                        tgtDevice.productName.toString() + " (${getRecordingDeviceKind(tgtDevice.type)})"
                 }
             }
         } catch(_: Exception) {}
+        return Pair(false, "")
     }
 
     private fun clearCommunicationDevice() {
@@ -251,14 +268,8 @@ class AudioRecognizer(
 
     @Throws(SecurityException::class)
     private fun createAudioRecorder(): AudioRecord {
-        val purpose = if(settings.recordingConfiguration.preferBluetoothMic) {
-            MediaRecorder.AudioSource.VOICE_COMMUNICATION
-        } else {
-            MediaRecorder.AudioSource.VOICE_RECOGNITION
-        }
-
         val recorder = AudioRecord(
-            purpose,
+            MediaRecorder.AudioSource.VOICE_RECOGNITION,
             16000,
             AudioFormat.CHANNEL_IN_MONO,
             AudioFormat.ENCODING_PCM_16BIT,
@@ -300,7 +311,6 @@ class AudioRecognizer(
         while (isRecording) {
             yield()
             val nRead = recorder.read(samples, 0, 1600, AudioRecord.READ_BLOCKING)
-
             if (nRead <= 0) break
             yield()
 
@@ -414,15 +424,56 @@ class AudioRecognizer(
             .setSpeechDurationMs(150).setSilenceDurationMs(300).build()
     }
 
-    private fun startRecording() {
+    @Throws(SecurityException::class)
-        if (isRecording) {
+    private fun createRecorderAndJob(preferBluetoothMic: Boolean): MicrophoneDeviceState {
-            throw IllegalStateException("Start recording when already recording")
+        isRecording = false
+        recorder?.stop()
+
+        val bluetoothInfo = setCommunicationDevice(preferBluetoothMic)
+
+        val task = {
+            recorder?.release()
+
+            val recorder = createAudioRecorder()
+
+            recorder.startRecording()
+            this.recorder = recorder
+
+            isRecording = true
+
+            recorderJob = lifecycleScope.launch {
+                withContext(Dispatchers.Default) {
+                    createVad().use { vad ->
+                        recordingJob(recorder, vad)
+                    }
+                }
+            }
         }
 
-        setCommunicationDevice()
+        if(recorderJob != null) {
+            lifecycleScope.launch {
+                recorderJob?.cancelAndJoin()
+                task()
+            }
+        } else {
+            task()
+        }
 
-        val recorder = try {
+
-            createAudioRecorder()
+        return MicrophoneDeviceState(
+            bluetoothAvailable = bluetoothInfo.first || isBluetoothAvailable(),
+            bluetoothActive = bluetoothInfo.first,
+            deviceName = bluetoothInfo.second,
+            bluetoothPreferredByUser = settings.recordingConfiguration.preferBluetoothMic,
+            setBluetooth = {
+                listener.recordingStarted(createRecorderAndJob(it))
+            }
+        )
+    }
+
+    private fun startRecording() {
+        val device = try {
+            createRecorderAndJob(settings.recordingConfiguration.preferBluetoothMic)
         } catch (e: SecurityException) {
             // It's possible we may have lost permission, so let's just ask for permission again
             clearCommunicationDevice()
@@ -432,37 +483,13 @@ class AudioRecognizer(
 
         focusAudio()
 
-        if(communicationDevice == "Unset") {
+        listener.recordingStarted(device)
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
-                communicationDevice = recorder.activeMicrophones.joinToString {
-                    getRecordingDeviceKind(it.type)
-                } + "@"
-            }
-        }
-
-        listener.recordingStarted(communicationDevice)
-
-
-        recorder.startRecording()
-
-        this.recorder = recorder
-
-        isRecording = true
-
-        recorderJob = lifecycleScope.launch {
-            withContext(Dispatchers.Default) {
-                createVad().use { vad ->
-                    recordingJob(recorder, vad)
-                }
-            }
-        }
 
         loadModelJob = lifecycleScope.launch {
             withContext(Dispatchers.Default) {
                 preloadModels()
             }
         }
-
     }
 
     private val runnerCallback: ModelInferenceCallback = object : ModelInferenceCallback {

voiceinput-shared/src/main/java/org/futo/voiceinput/shared/RecognizerView.kt

@@ -11,6 +11,7 @@ import org.futo.voiceinput.shared.types.InferenceState
 import org.futo.voiceinput.shared.types.Language
 import org.futo.voiceinput.shared.types.MagnitudeState
 import org.futo.voiceinput.shared.ui.InnerRecognize
+import org.futo.voiceinput.shared.ui.MicrophoneDeviceState
 import org.futo.voiceinput.shared.ui.PartialDecodingResult
 import org.futo.voiceinput.shared.ui.RecognizeLoadingCircle
 import org.futo.voiceinput.shared.ui.RecognizeMicError
@@ -48,7 +49,7 @@ private val DefaultAnnotations = hashMapOf(
 interface RecognizerViewListener {
     fun cancelled()
 
-    fun recordingStarted(device: String)
+    fun recordingStarted(device: MicrophoneDeviceState)
 
     fun finished(result: String)
 
@@ -76,7 +77,13 @@ class RecognizerView(
     private val partialDecodingText = mutableStateOf("")
     private val currentViewState = mutableStateOf(CurrentView.LoadingCircle)
 
-    private val currentDeviceState = mutableStateOf("Recording not started")
+    private val currentDeviceState = mutableStateOf(MicrophoneDeviceState(
+        bluetoothAvailable = false,
+        bluetoothActive = false,
+        setBluetooth = { },
+        deviceName = "",
+        bluetoothPreferredByUser = false
+    ))
 
     @Composable
     fun Content() {
@@ -97,7 +104,7 @@ class RecognizerView(
                 InnerRecognize(
                     magnitude = magnitudeState,
                     state = statusState,
-                    device = if(settings.shouldShowVerboseFeedback) { currentDeviceState } else { null }
+                    device = currentDeviceState
                 )
             }
 
@@ -172,7 +179,7 @@ class RecognizerView(
             }
         }
 
-        override fun recordingStarted(device: String) {
+        override fun recordingStarted(device: MicrophoneDeviceState) {
             updateMagnitude(0.0f, MagnitudeState.NOT_TALKED_YET)
             currentDeviceState.value = device
             listener.recordingStarted(device)

voiceinput-shared/src/main/java/org/futo/voiceinput/shared/types/AudioRecognizerListener.kt

@@ -1,5 +1,7 @@
 package org.futo.voiceinput.shared.types
 
+import org.futo.voiceinput.shared.ui.MicrophoneDeviceState
+
 enum class MagnitudeState {
     NOT_TALKED_YET, MIC_MAY_BE_BLOCKED, TALKING
 }
@@ -14,7 +16,7 @@ interface AudioRecognizerListener {
     fun loading()
     fun needPermission(onResult: (Boolean) -> Unit)
 
-    fun recordingStarted(device: String)
+    fun recordingStarted(device: MicrophoneDeviceState)
     fun updateMagnitude(magnitude: Float, state: MagnitudeState)
 
     fun processing()

voiceinput-shared/src/main/java/org/futo/voiceinput/shared/ui/RecognizeViews.kt

@@ -1,7 +1,12 @@
 package org.futo.voiceinput.shared.ui
 
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
 import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.BoxScope
 import androidx.compose.foundation.layout.ColumnScope
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.defaultMinSize
@@ -21,21 +26,46 @@ import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.MutableFloatState
 import androidx.compose.runtime.MutableState
 import androidx.compose.runtime.mutableFloatStateOf
 import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.alpha
+import androidx.compose.ui.draw.drawBehind
+import androidx.compose.ui.geometry.CornerRadius
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Size
+import androidx.compose.ui.graphics.drawscope.Fill
+import androidx.compose.ui.graphics.drawscope.Stroke
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.Role
+import androidx.compose.ui.semantics.clearAndSetSemantics
+import androidx.compose.ui.semantics.role
+import androidx.compose.ui.semantics.text
+import androidx.compose.ui.semantics.toggleableState
+import androidx.compose.ui.state.ToggleableState
+import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
+import kotlinx.coroutines.delay
 import org.futo.voiceinput.shared.R
 import org.futo.voiceinput.shared.types.MagnitudeState
 import org.futo.voiceinput.shared.ui.theme.Typography
 
+data class MicrophoneDeviceState(
+    val bluetoothAvailable: Boolean,
+    val bluetoothActive: Boolean,
+    val bluetoothPreferredByUser: Boolean,
+    val setBluetooth: (Boolean) -> Unit,
+    val deviceName: String
+)
+
 @Composable
 fun AnimatedRecognizeCircle(magnitude: MutableFloatState = mutableFloatStateOf(0.5f)) {
     val radius = animateValueChanges(magnitude.floatValue, 100)
@@ -51,11 +81,92 @@ fun AnimatedRecognizeCircle(magnitude: MutableFloatState = mutableFloatStateOf(0
     }
 }
 
+@Composable
+private fun FakeToast(modifier: Modifier, message: String?) {
+    val visible = remember { mutableStateOf(false) }
+
+    LaunchedEffect(message) {
+        if(message != null) {
+            visible.value = true
+            delay(2500L)
+            visible.value = false
+        } else {
+            visible.value = false
+        }
+    }
+
+    if(message != null) {
+        AnimatedVisibility(
+            visible = visible.value,
+            modifier = modifier.alpha(0.9f).background(MaterialTheme.colorScheme.surfaceDim, RoundedCornerShape(100)).padding(16.dp),
+            enter = fadeIn(),
+            exit = fadeOut()
+        ) {
+            Box {
+                Text(message, modifier = Modifier.align(Alignment.Center), style = Typography.labelSmall)
+            }
+        }
+    }
+}
+
+@Composable
+private fun BoxScope.BluetoothToggleIcon(device: MutableState<MicrophoneDeviceState>? = null) {
+    FakeToast(modifier = Modifier.align(Alignment.BottomCenter).offset(y = (-16).dp), message = if(device?.value?.bluetoothActive == true) {
+        "Using Bluetooth mic (${device.value.deviceName})"
+    } else if(device?.value?.bluetoothAvailable == true || device?.value?.bluetoothPreferredByUser == true) {
+        "Using Built-in mic (${device.value.deviceName})"
+    } else {
+        null
+    })
+
+    if(device?.value?.bluetoothAvailable == true) {
+        val bluetoothColor = MaterialTheme.colorScheme.primary
+        val iconColor = if(device.value.bluetoothActive) {
+            MaterialTheme.colorScheme.onPrimary
+        } else {
+            MaterialTheme.colorScheme.onSurface
+        }
+
+        IconButton(modifier = Modifier
+            .align(Alignment.BottomEnd)
+            .offset(x = (-16).dp, y = (-16).dp)
+            .drawBehind {
+                val radius = size.height / 4.0f
+                drawRoundRect(
+                    bluetoothColor,
+                    topLeft = Offset(size.width * 0.1f, size.height * 0.05f),
+                    size = Size(size.width * 0.8f, size.height * 0.9f),
+                    cornerRadius = CornerRadius(radius, radius),
+                    style = if (device.value.bluetoothActive) {
+                        Fill
+                    } else {
+                        Stroke(width = 4.0f)
+                    }
+                )
+            }
+            .clearAndSetSemantics {
+                this.text = AnnotatedString("Use bluetooth mic")
+                this.role = Role.Switch
+                this.toggleableState = ToggleableState(device.value.bluetoothActive)
+            },
+            onClick = {
+                device.value.setBluetooth(!device.value.bluetoothActive)
+            },
+        ) {
+            Icon(
+                painter = painterResource(id = R.drawable.bluetooth),
+                contentDescription = null,
+                tint = iconColor
+            )
+        }
+    }
+}
+
 @Composable
 fun InnerRecognize(
     magnitude: MutableFloatState = mutableFloatStateOf(0.5f),
     state: MutableState<MagnitudeState> = mutableStateOf(MagnitudeState.MIC_MAY_BE_BLOCKED),
-    device: MutableState<String>? = mutableStateOf("")
+    device: MutableState<MicrophoneDeviceState>? = null
 ) {
     Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
         AnimatedRecognizeCircle(magnitude = magnitude)
@@ -75,20 +186,14 @@ fun InnerRecognize(
 
         Text(
             text,
-            modifier = Modifier.fillMaxWidth().offset(x = 0.dp, y = 48.dp),
+            modifier = Modifier
+                .fillMaxWidth()
+                .offset(x = 0.dp, y = 48.dp),
             textAlign = TextAlign.Center,
             color = MaterialTheme.colorScheme.onSurface
         )
 
-        if(device != null) {
+        BluetoothToggleIcon(device)
-            Text(
-                "Device: ${device.value}",
-                style = Typography.labelSmall,
-                modifier = Modifier.fillMaxWidth().offset(x = 0.dp, y = 64.dp),
-                textAlign = TextAlign.Center,
-                color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.66f)
-            )
-        }
     }
 }
 

voiceinput-shared/src/main/res/drawable/bluetooth.xml

@@ -0,0 +1,13 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="M6.5,6.5l11,11l-5.5,5.5l0,-22l5.5,5.5l-11,11"
+      android:strokeLineJoin="round"
+      android:strokeWidth="2"
+      android:fillColor="#00000000"
+      android:strokeColor="#ffffff"
+      android:strokeLineCap="round"/>
+</vector>