Remove biometric lock screen

app/src/main/java/cz/bugsy/passwordzebra/deterministic/DeterministicViewModel.kt

@@ -19,10 +19,7 @@ data class DeterministicState(
     val masterPassword: CharArray = CharArray(0),
     val masterPasswordVisible: Boolean = false,
     val generatedPassword: String = "",
-    val isLocked: Boolean = false,
     val clipboardTimerSeconds: Int = 0,
-    val biometricEnabled: Boolean = false,
-    val lockTimeoutMinutes: Int = 5,
     val showRotateWarning: Boolean = false,
     val serviceHistory: List<String> = emptyList(),
 ) {
@@ -34,10 +31,7 @@ data class DeterministicState(
             masterPassword.contentEquals(other.masterPassword) &&
             masterPasswordVisible == other.masterPasswordVisible &&
             generatedPassword == other.generatedPassword &&
-            isLocked == other.isLocked &&
             clipboardTimerSeconds == other.clipboardTimerSeconds &&
-            biometricEnabled == other.biometricEnabled &&
-            lockTimeoutMinutes == other.lockTimeoutMinutes &&
             showRotateWarning == other.showRotateWarning &&
             serviceHistory == other.serviceHistory
     }
@@ -47,10 +41,7 @@ data class DeterministicState(
         result = 31 * result + masterPassword.contentHashCode()
         result = 31 * result + masterPasswordVisible.hashCode()
         result = 31 * result + generatedPassword.hashCode()
-        result = 31 * result + isLocked.hashCode()
         result = 31 * result + clipboardTimerSeconds
-        result = 31 * result + biometricEnabled.hashCode()
-        result = 31 * result + lockTimeoutMinutes
         result = 31 * result + showRotateWarning.hashCode()
         result = 31 * result + serviceHistory.hashCode()
         return result
@@ -66,18 +57,10 @@ class DeterministicViewModel(app: Application) : AndroidViewModel(app) {
     private val _state = MutableStateFlow(DeterministicState())
     val state: StateFlow<DeterministicState> = _state.asStateFlow()
 
-    private val settingsPrefs = app.getSharedPreferences("det_settings", Context.MODE_PRIVATE)
-
     private var clipboardClearJob: Job? = null
 
     init {
-        _state.update {
-            it.copy(
-                biometricEnabled = settingsPrefs.getBoolean("biometric_enabled", false),
-                lockTimeoutMinutes = settingsPrefs.getInt("lock_timeout_minutes", 5),
-                serviceHistory = historyRepository.getNames(),
-            )
-        }
+        _state.update { it.copy(serviceHistory = historyRepository.getNames()) }
     }
 
     fun updateServiceName(name: String) = _state.update { it.copy(serviceName = name.lowercase()) }
@@ -143,27 +126,6 @@ class DeterministicViewModel(app: Application) : AndroidViewModel(app) {
         }
     }
 
-    fun lock() = _state.update { it.copy(isLocked = true) }
-
-    fun unlock() = _state.update { it.copy(isLocked = false) }
-
-    fun onAppForeground(lastBackgroundTimeMs: Long) {
-        val timeoutMs = _state.value.lockTimeoutMinutes * 60 * 1000L
-        if (timeoutMs > 0 && System.currentTimeMillis() - lastBackgroundTimeMs >= timeoutMs) {
-            lock()
-        }
-    }
-
-    fun setBiometricEnabled(enabled: Boolean) {
-        settingsPrefs.edit().putBoolean("biometric_enabled", enabled).apply()
-        _state.update { it.copy(biometricEnabled = enabled) }
-    }
-
-    fun setLockTimeoutMinutes(minutes: Int) {
-        settingsPrefs.edit().putInt("lock_timeout_minutes", minutes).apply()
-        _state.update { it.copy(lockTimeoutMinutes = minutes) }
-    }
-
     fun getDeviceSecret(): ByteArray = deviceSecretManager.exportSecret()
 
     fun importDeviceSecret(secret: ByteArray) = deviceSecretManager.importSecret(secret)

app/src/main/java/cz/bugsy/passwordzebra/ui/navigation/AppNavigation.kt

@@ -180,7 +180,6 @@ fun AppNavigation() {
                 popExitTransition = { slideOutHorizontally(tween(300)) { it } },
             ) {
                 SettingsScreen(
-                    viewModel = detViewModel,
                     onNavigateBack = { navController.popBackStack() },
                     onNavigateToExportImport = { navController.navigate(ROUTE_EXPORT_IMPORT) },
                 )

app/src/main/java/cz/bugsy/passwordzebra/ui/screens/DeterministicScreen.kt

@@ -81,10 +81,6 @@ fun DeterministicScreen(
     val state by viewModel.state.collectAsState()
     val context = LocalContext.current
     BackHandler { (context as? android.app.Activity)?.finish() }
-    if (state.isLocked) {
-        LockScreen(viewModel = viewModel)
-        return
-    }
 
     var showRotateConfirmDialog by remember { mutableStateOf(false) }
     val masterPasswordFocus = remember { FocusRequester() }

app/src/main/java/cz/bugsy/passwordzebra/ui/screens/LockScreen.kt

@@ -1,97 +0,0 @@
-package cz.bugsy.passwordzebra.ui.screens
-
-import androidx.biometric.BiometricManager
-import androidx.biometric.BiometricPrompt
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Lock
-import androidx.compose.material3.Button
-import androidx.compose.material3.Icon
-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.collectAsState
-import androidx.compose.runtime.getValue
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.unit.dp
-import androidx.core.content.ContextCompat
-import androidx.fragment.app.FragmentActivity
-import cz.bugsy.passwordzebra.R
-import cz.bugsy.passwordzebra.deterministic.DeterministicViewModel
-
-@Composable
-fun LockScreen(viewModel: DeterministicViewModel) {
-    val state by viewModel.state.collectAsState()
-    val context = LocalContext.current
-
-    fun launchBiometric() {
-        val activity = context as? FragmentActivity ?: return
-        val executor = ContextCompat.getMainExecutor(context)
-        val prompt = BiometricPrompt(
-            activity,
-            executor,
-            object : BiometricPrompt.AuthenticationCallback() {
-                override fun onAuthenticationSucceeded(result: BiometricPrompt.AuthenticationResult) {
-                    viewModel.unlock()
-                }
-            },
-        )
-        val promptInfo = BiometricPrompt.PromptInfo.Builder()
-            .setTitle(context.getString(R.string.det_biometric_prompt_title))
-            .setSubtitle(context.getString(R.string.det_biometric_prompt_subtitle))
-            .setNegativeButtonText(context.getString(R.string.cancel))
-            .build()
-        prompt.authenticate(promptInfo)
-    }
-
-    LaunchedEffect(Unit) {
-        if (state.biometricEnabled) {
-            launchBiometric()
-        }
-    }
-
-    Surface(modifier = Modifier.fillMaxSize(), color = MaterialTheme.colorScheme.background) {
-        Column(
-            modifier = Modifier
-                .fillMaxSize()
-                .padding(32.dp),
-            horizontalAlignment = Alignment.CenterHorizontally,
-            verticalArrangement = Arrangement.Center,
-        ) {
-            Icon(
-                imageVector = Icons.Default.Lock,
-                contentDescription = null,
-                modifier = Modifier.size(64.dp),
-                tint = MaterialTheme.colorScheme.primary,
-            )
-            Spacer(modifier = Modifier.height(24.dp))
-            Text(
-                text = stringResource(R.string.det_locked_title),
-                style = MaterialTheme.typography.headlineMedium,
-            )
-            Spacer(modifier = Modifier.height(8.dp))
-            Text(
-                text = stringResource(R.string.det_locked_body),
-                style = MaterialTheme.typography.bodyMedium,
-                color = MaterialTheme.colorScheme.onSurfaceVariant,
-            )
-            Spacer(modifier = Modifier.height(32.dp))
-            if (state.biometricEnabled) {
-                Button(onClick = { launchBiometric() }) {
-                    Text(stringResource(R.string.det_unlock_biometric))
-                }
-            }
-        }
-    }
-}