Add support for auto-confirmed PINs am: da01955aa6 (7a47e2df) · Commits · e / os / android_frameworks_base

packages/SystemUI/compose/features/src/com/android/systemui/bouncer/ui/composable/PinBouncer.kt

+103 −80

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@ import androidx.compose.animation.core.MutableTransitionState
		import androidx.compose.animation.core.Transition
		import androidx.compose.animation.core.animateDp
		import androidx.compose.animation.core.animateDpAsState
		import androidx.compose.animation.core.animateFloatAsState
		import androidx.compose.animation.core.keyframes
		import androidx.compose.animation.core.snap
		import androidx.compose.animation.core.tween
		@@ -58,6 +59,7 @@ import androidx.compose.ui.Modifier
		import androidx.compose.ui.draw.drawBehind
		import androidx.compose.ui.geometry.CornerRadius
		import androidx.compose.ui.graphics.Color
		import androidx.compose.ui.graphics.graphicsLayer
		import androidx.compose.ui.input.pointer.pointerInput
		import androidx.compose.ui.layout.Layout
		import androidx.compose.ui.platform.LocalView
		@@ -67,6 +69,7 @@ import androidx.compose.ui.unit.dp
		import com.android.compose.animation.Easings
		import com.android.compose.grid.VerticalGrid
		import com.android.systemui.R
		import com.android.systemui.bouncer.ui.viewmodel.ActionButtonAppearance
		import com.android.systemui.bouncer.ui.viewmodel.EnteredKey
		import com.android.systemui.bouncer.ui.viewmodel.PinBouncerViewModel
		import com.android.systemui.common.shared.model.ContentDescription
		@@ -87,7 +90,6 @@ internal fun PinBouncer(
		// Report that the UI is shown to let the view-model run some logic.
		LaunchedEffect(Unit) { viewModel.onShown() }

		val isInputEnabled: Boolean by viewModel.isInputEnabled.collectAsState()
		val animateFailure: Boolean by viewModel.animateFailure.collectAsState()

		// Show the failure animation if the user entered the wrong input.
		@@ -103,62 +105,8 @@ internal fun PinBouncer(
		modifier = modifier,
		) {
		PinInputDisplay(viewModel)

		Spacer(Modifier.height(100.dp))

		VerticalGrid(
		columns = 3,
		verticalSpacing = 12.dp,
		horizontalSpacing = 20.dp,
		) {
		repeat(9) { index ->
		val digit = index + 1
		PinButton(
		onClicked = { viewModel.onPinButtonClicked(digit) },
		isEnabled = isInputEnabled,
		) { contentColor ->
		PinDigit(digit, contentColor)
		}
		}

		PinButton(
		onClicked = { viewModel.onBackspaceButtonClicked() },
		onLongPressed = { viewModel.onBackspaceButtonLongPressed() },
		isEnabled = isInputEnabled,
		isIconButton = true,
		) { contentColor ->
		PinIcon(
		Icon.Resource(
		res = R.drawable.ic_backspace_24dp,
		contentDescription =
		ContentDescription.Resource(R.string.keyboardview_keycode_delete),
		),
		contentColor,
		)
		}

		PinButton(
		onClicked = { viewModel.onPinButtonClicked(0) },
		isEnabled = isInputEnabled,
		) { contentColor ->
		PinDigit(0, contentColor)
		}

		PinButton(
		onClicked = { viewModel.onAuthenticateButtonClicked() },
		isEnabled = isInputEnabled,
		isIconButton = true,
		) { contentColor ->
		PinIcon(
		Icon.Resource(
		res = R.drawable.ic_keyboard_tab_36dp,
		contentDescription =
		ContentDescription.Resource(R.string.keyboardview_keycode_enter),
		),
		contentColor,
		)
		}
		}
		PinPad(viewModel)
		}
		}

		@@ -305,38 +253,115 @@ private fun ObscuredInputEntry(transition: Transition<EntryVisibility>) {
		}

		@Composable
		private fun PinDigit(
		private fun PinPad(viewModel: PinBouncerViewModel) {
		val isInputEnabled: Boolean by viewModel.isInputEnabled.collectAsState()
		val backspaceButtonAppearance by viewModel.backspaceButtonAppearance.collectAsState()
		val confirmButtonAppearance by viewModel.confirmButtonAppearance.collectAsState()

		VerticalGrid(
		columns = 3,
		verticalSpacing = 12.dp,
		horizontalSpacing = 20.dp,
		) {
		repeat(9) { index -> DigitButton(index + 1, isInputEnabled, viewModel::onPinButtonClicked) }

		ActionButton(
		icon =
		Icon.Resource(
		res = R.drawable.ic_backspace_24dp,
		contentDescription =
		ContentDescription.Resource(R.string.keyboardview_keycode_delete),
		),
		isInputEnabled = isInputEnabled,
		onClicked = viewModel::onBackspaceButtonClicked,
		onLongPressed = viewModel::onBackspaceButtonLongPressed,
		appearance = backspaceButtonAppearance,
		)

		DigitButton(0, isInputEnabled, viewModel::onPinButtonClicked)

		ActionButton(
		icon =
		Icon.Resource(
		res = R.drawable.ic_keyboard_tab_36dp,
		contentDescription =
		ContentDescription.Resource(R.string.keyboardview_keycode_enter),
		),
		isInputEnabled = isInputEnabled,
		onClicked = viewModel::onAuthenticateButtonClicked,
		appearance = confirmButtonAppearance
		)
		}
		}

		@Composable
		private fun DigitButton(
		digit: Int,
		contentColor: Color,
		isInputEnabled: Boolean,
		onClicked: (Int) -> Unit,
		) {
		// TODO(b/281878426): once "color: () -> Color" (added to BasicText in aosp/2568972) makes it
		// into Text, use that here, to animate more efficiently.
		PinPadButton(
		onClicked = { onClicked(digit) },
		isEnabled = isInputEnabled,
		backgroundColor = MaterialTheme.colorScheme.surfaceVariant,
		foregroundColor = MaterialTheme.colorScheme.onSurfaceVariant,
		) { contentColor ->
		// TODO(b/281878426): once "color: () -> Color" (added to BasicText in aosp/2568972) makes
		// it into Text, use that here, to animate more efficiently.
		Text(
		text = digit.toString(),
		style = MaterialTheme.typography.headlineLarge,
		color = contentColor,
		color = contentColor(),
		)
		}
		}

		@Composable
		private fun PinIcon(
		private fun ActionButton(
		icon: Icon,
		contentColor: Color,
		isInputEnabled: Boolean,
		onClicked: () -> Unit,
		onLongPressed: (() -> Unit)? = null,
		appearance: ActionButtonAppearance,
		) {
		val isHidden = appearance == ActionButtonAppearance.Hidden
		val hiddenAlpha by animateFloatAsState(if (isHidden) 0f else 1f, label = "Action button alpha")

		val foregroundColor =
		when (appearance) {
		ActionButtonAppearance.Shown -> MaterialTheme.colorScheme.onSecondaryContainer
		else -> MaterialTheme.colorScheme.onSurface
		}
		val backgroundColor =
		when (appearance) {
		ActionButtonAppearance.Shown -> MaterialTheme.colorScheme.secondaryContainer
		else -> MaterialTheme.colorScheme.surface
		}

		PinPadButton(
		onClicked = onClicked,
		onLongPressed = onLongPressed,
		isEnabled = isInputEnabled && !isHidden,
		backgroundColor = backgroundColor,
		foregroundColor = foregroundColor,
		modifier = Modifier.graphicsLayer { alpha = hiddenAlpha }
		) { contentColor ->
		Icon(
		icon = icon,
		tint = contentColor,
		tint = contentColor(),
		)
		}
		}

		@Composable
		private fun PinButton(
		private fun PinPadButton(
		onClicked: () -> Unit,
		isEnabled: Boolean,
		backgroundColor: Color,
		foregroundColor: Color,
		modifier: Modifier = Modifier,
		onLongPressed: (() -> Unit)? = null,
		isIconButton: Boolean = false,
		content: @Composable (contentColor: Color) -> Unit,
		content: @Composable (contentColor: () -> Color) -> Unit,
		) {
		var isPressed: Boolean by remember { mutableStateOf(false) }

		@@ -370,18 +395,16 @@ private fun PinButton(
		animateColorAsState(
		when {
		isPressed -> MaterialTheme.colorScheme.primary
		isIconButton -> MaterialTheme.colorScheme.secondaryContainer
		else -> MaterialTheme.colorScheme.surfaceVariant
		else -> backgroundColor
		},
		label = "Pin button container color",
		animationSpec = colorAnimationSpec
		)
		val contentColor: Color by
		val contentColor =
		animateColorAsState(
		when {
		isPressed -> MaterialTheme.colorScheme.onPrimary
		isIconButton -> MaterialTheme.colorScheme.onSecondaryContainer
		else -> MaterialTheme.colorScheme.onSurfaceVariant
		else -> foregroundColor
		},
		label = "Pin button container color",
		animationSpec = colorAnimationSpec
		@@ -420,7 +443,7 @@ private fun PinButton(
		}
		},
		) {
		content(contentColor)
		content(contentColor::value)
		}
		}

packages/SystemUI/src/com/android/systemui/authentication/data/repository/AuthenticationRepository.kt

+3 −1

Original line number	Diff line number	Diff line
		@@ -77,7 +77,9 @@ class AuthenticationRepositoryImpl @Inject constructor() : AuthenticationReposit
		override val isUnlocked: StateFlow<Boolean> = _isUnlocked.asStateFlow()

		private val _authenticationMethod =
		MutableStateFlow<AuthenticationMethodModel>(AuthenticationMethodModel.Pin(1234))
		MutableStateFlow<AuthenticationMethodModel>(
		AuthenticationMethodModel.Pin(listOf(1, 2, 3, 4), autoConfirm = false)
		)
		override val authenticationMethod: StateFlow<AuthenticationMethodModel> =
		_authenticationMethod.asStateFlow()

packages/SystemUI/src/com/android/systemui/authentication/domain/interactor/AuthenticationInteractor.kt

+32 −14

Original line number	Diff line number	Diff line
		@@ -122,14 +122,36 @@ constructor(
		/**
		* Attempts to authenticate the user and unlock the device.
		*
		* If [tryAutoConfirm] is `true`, authentication is attempted if and only if the auth method
		* supports auto-confirming, and the input's length is at least the code's length. Otherwise,
		* `null` is returned.
		*
		* @param input The input from the user to try to authenticate with. This can be a list of
		* different things, based on the current authentication method.
		* @return `true` if the authentication succeeded and the device is now unlocked; `false`
		* otherwise.
		* @param tryAutoConfirm `true` if called while the user inputs the code, without an explicit
		* request to validate.
		* @return `true` if the authentication succeeded and the device is now unlocked; `false` when
		* authentication failed, `null` if the check was not performed.
		*/
		fun authenticate(input: List<Any>): Boolean {
		fun authenticate(input: List<Any>, tryAutoConfirm: Boolean = false): Boolean? {
		val authMethod = this.authenticationMethod.value
		if (tryAutoConfirm) {
		if ((authMethod as? AuthenticationMethodModel.Pin)?.autoConfirm != true) {
		// Do not attempt to authenticate unless the PIN lock is set to auto-confirm.
		return null
		}

		if (input.size < authMethod.code.size) {
		// Do not attempt to authenticate if the PIN has not yet the required amount of
		// digits. This intentionally only skip for shorter PINs; if the PIN is longer, the
		// layer above might have throttled this check, and the PIN should be rejected via
		// the auth code below.
		return null
		}
		}

		val isSuccessful =
		when (val authMethod = this.authenticationMethod.value) {
		when (authMethod) {
		is AuthenticationMethodModel.Pin -> input.asCode() == authMethod.code
		is AuthenticationMethodModel.Password -> input.asPassword() == authMethod.password
		is AuthenticationMethodModel.Pattern -> input.asPattern() == authMethod.coordinates
		@@ -180,21 +202,17 @@ constructor(
		* Returns a PIN code from the given list. It's assumed the given list elements are all
		* [Int] in the range [0-9].
		*/
		private fun List<Any>.asCode(): Long? {
		private fun List<Any>.asCode(): List<Int>? {
		if (isEmpty() \|\| size > DevicePolicyManager.MAX_PASSWORD_LENGTH) {
		return null
		}

		var code = 0L
		map {
		return map {
		require(it is Int && it in 0..9) {
		"Pin is required to be Int in range [0..9], but got $it"
		}
		it
		}
		.forEach { integer -> code = code * 10 + integer }

		return code
		}

		/**

packages/SystemUI/src/com/android/systemui/authentication/shared/model/AuthenticationMethodModel.kt

+12 −1

Original line number	Diff line number	Diff line
		@@ -16,6 +16,8 @@

		package com.android.systemui.authentication.shared.model

		import androidx.annotation.VisibleForTesting

		/** Enumerates all known authentication methods. */
		sealed class AuthenticationMethodModel(
		/**
		@@ -38,7 +40,16 @@ sealed class AuthenticationMethodModel(
		* In practice, a pin is restricted to 16 decimal digits , see
		* [android.app.admin.DevicePolicyManager.MAX_PASSWORD_LENGTH]
		*/
		data class Pin(val code: Long) : AuthenticationMethodModel(isSecure = true)
		data class Pin(val code: List<Int>, val autoConfirm: Boolean) :
		AuthenticationMethodModel(isSecure = true) {

		/** Convenience constructor for tests only. */
		@VisibleForTesting
		constructor(
		code: Long,
		autoConfirm: Boolean = false
		) : this(code.toString(10).map { it - '0' }, autoConfirm) {}
		}

		data class Password(val password: String) : AuthenticationMethodModel(isSecure = true)

packages/SystemUI/src/com/android/systemui/bouncer/domain/interactor/BouncerInteractor.kt

+13 −4

Original line number	Diff line number	Diff line
		@@ -149,19 +149,28 @@ constructor(
		* If the input is correct, the device will be unlocked and the lock screen and bouncer will be
		* dismissed and hidden.
		*
		* If [tryAutoConfirm] is `true`, authentication is attempted if and only if the auth method
		* supports auto-confirming, and the input's length is at least the code's length. Otherwise,
		* `null` is returned.
		*
		* @param input The input from the user to try to authenticate with. This can be a list of
		* different things, based on the current authentication method.
		* @return `true` if the authentication succeeded and the device is now unlocked; `false`
		* otherwise.
		* @param tryAutoConfirm `true` if called while the user inputs the code, without an explicit
		* request to validate.
		* @return `true` if the authentication succeeded and the device is now unlocked; `false` when
		* authentication failed, `null` if the check was not performed.
		*/
		fun authenticate(
		input: List<Any>,
		): Boolean {
		tryAutoConfirm: Boolean = false,
		): Boolean? {
		if (repository.throttling.value != null) {
		return false
		}

		val isAuthenticated = authenticationInteractor.authenticate(input)
		val isAuthenticated =
		authenticationInteractor.authenticate(input, tryAutoConfirm) ?: return null

		val failedAttempts = authenticationInteractor.failedAuthenticationAttempts.value
		when {
		isAuthenticated -> {