Improve TV connect screen UI

- Implements the navigation rail design for Android TV
- Implements the TV notification banner design
- Adds two new Gradle modules:
  * tv: contains the Android TV specific Compose components (e.g. the
     NavigationDrawerTV component)
  * ui/compose: contains Compose-specific code that is needed by
    both the app module and the tv module.

4 files changed, 363 insertions, 0 deletions

diff --git a/android/lib/tv/build.gradle.kts b/android/lib/tv/build.gradle.kts
new file mode 100644
index 0000000000..ef6b922da6
--- /dev/null
+++ b/android/lib/tv/build.gradle.kts
@@ -0,0 +1,48 @@
+plugins {
+    alias(libs.plugins.android.library)
+    alias(libs.plugins.kotlin.android)
+    alias(libs.plugins.compose)
+}
+
+android {
+    namespace = "net.mullvad.mullvadvpn.lib.tv"
+    compileSdk = Versions.compileSdkVersion
+    buildToolsVersion = Versions.buildToolsVersion
+
+    defaultConfig { minSdk = Versions.minSdkVersion }
+
+    buildFeatures { compose = true }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    kotlinOptions {
+        jvmTarget = Versions.jvmTarget
+        allWarningsAsErrors = true
+    }
+
+    lint {
+        lintConfig = file("${rootProject.projectDir}/config/lint.xml")
+        abortOnError = true
+        warningsAsErrors = true
+    }
+}
+
+dependencies {
+    implementation(libs.kotlin.stdlib)
+    implementation(libs.androidx.tv)
+    implementation(libs.androidx.activity.compose)
+    implementation(libs.compose.material3)
+    implementation(libs.compose.ui)
+    implementation(projects.lib.model)
+    implementation(projects.lib.resource)
+    implementation(projects.lib.shared)
+    implementation(projects.lib.theme)
+    implementation(projects.lib.ui.component)
+
+    // UI tooling
+    implementation(libs.compose.ui.tooling.preview)
+    debugImplementation(libs.compose.ui.tooling)
+}
diff --git a/android/lib/tv/src/main/AndroidManifest.xml b/android/lib/tv/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..cc947c5679
--- /dev/null
+++ b/android/lib/tv/src/main/AndroidManifest.xml
@@ -0,0 +1 @@
+<manifest />
diff --git a/android/lib/tv/src/main/kotlin/net/mullvad/mullvadvpn/lib/tv/NavigationDrawerTv.kt b/android/lib/tv/src/main/kotlin/net/mullvad/mullvadvpn/lib/tv/NavigationDrawerTv.kt
new file mode 100644
index 0000000000..d8a373c2b2
--- /dev/null
+++ b/android/lib/tv/src/main/kotlin/net/mullvad/mullvadvpn/lib/tv/NavigationDrawerTv.kt
@@ -0,0 +1,251 @@
+package net.mullvad.mullvadvpn.lib.tv
+
+import androidx.activity.compose.BackHandler
+import androidx.compose.animation.core.animateDpAsState
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.selection.selectableGroup
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.AccountCircle
+import androidx.compose.material.icons.filled.Settings
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.ExperimentalComposeUiApi
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.FocusDirection
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.FocusRequester.Companion.Cancel
+import androidx.compose.ui.focus.FocusRequester.Companion.Default
+import androidx.compose.ui.focus.focusProperties
+import androidx.compose.ui.focus.focusRequester
+import androidx.compose.ui.focus.onFocusChanged
+import androidx.compose.ui.graphics.Brush
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.platform.LocalFocusManager
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.pluralStringResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.tooling.preview.PreviewParameter
+import androidx.compose.ui.tooling.preview.PreviewParameterProvider
+import androidx.compose.ui.unit.dp
+import androidx.tv.material3.DrawerValue
+import androidx.tv.material3.ModalNavigationDrawer
+import androidx.tv.material3.NavigationDrawerItem
+import androidx.tv.material3.NavigationDrawerItemDefaults
+import androidx.tv.material3.NavigationDrawerScope
+import androidx.tv.material3.rememberDrawerState
+import net.mullvad.mullvadvpn.lib.theme.AppTheme
+import net.mullvad.mullvadvpn.lib.theme.Dimens
+
+private class DrawerValueProvider : PreviewParameterProvider<DrawerValue> {
+    override val values: Sequence<DrawerValue>
+        get() = sequenceOf(DrawerValue.Closed, DrawerValue.Open)
+}
+
+@Preview("Closed|Open")
+@Composable
+fun PreviewNavigationDrawerTvClosed(
+    @PreviewParameter(DrawerValueProvider::class) drawerValue: DrawerValue
+) {
+    AppTheme {
+        NavigationDrawerTv(
+            daysLeftUntilExpiry = 30,
+            deviceName = "Cool Cat",
+            initialDrawerValue = drawerValue,
+            onSettingsClick = {},
+            onAccountClick = {},
+        ) {}
+    }
+}
+
+@OptIn(ExperimentalComposeUiApi::class)
+@Composable
+@Suppress("LongMethod")
+fun NavigationDrawerTv(
+    daysLeftUntilExpiry: Long?,
+    deviceName: String?,
+    initialDrawerValue: DrawerValue = DrawerValue.Closed,
+    onSettingsClick: (() -> Unit),
+    onAccountClick: (() -> Unit),
+    content: @Composable () -> Unit,
+) {
+    val drawerState = rememberDrawerState(initialDrawerValue)
+    val focusRequester = remember { FocusRequester() }
+    val brush = remember { Brush.horizontalGradient(listOf(Color.Black, Color.Transparent)) }
+
+    val focusManager = LocalFocusManager.current
+
+    if (drawerState.currentValue == DrawerValue.Open) {
+        BackHandler(
+            onBack = {
+                drawerState.setValue(DrawerValue.Closed)
+                focusManager.moveFocus(FocusDirection.Right)
+            }
+        )
+    }
+
+    ModalNavigationDrawer(
+        modifier =
+            Modifier.focusRequester(focusRequester).focusProperties {
+                enter = { if (focusRequester.restoreFocusedChild()) Cancel else Default }
+            },
+        drawerState = drawerState,
+        scrimBrush = brush,
+        drawerContent = {
+            Box(
+                Modifier.fillMaxHeight()
+                    .background(brush)
+                    .padding(
+                        top = Dimens.screenVerticalMargin,
+                        bottom = Dimens.screenVerticalMargin,
+                        start = Dimens.tvDrawerHorizontalPadding,
+                        end = Dimens.tvDrawerHorizontalPadding,
+                    )
+                    .selectableGroup()
+            ) {
+                val animatedPadding =
+                    animateDpAsState(
+                        if (hasFocus) Dimens.tvDrawerHeaderWithFocusStartPadding
+                        else Dimens.tvDrawerHeaderStartPadding
+                    )
+
+                NavigationDrawerTvHeader(
+                    modifier =
+                        Modifier.align(Alignment.TopStart).padding(start = animatedPadding.value),
+                    isExpanded = hasFocus,
+                    daysLeftUntilExpiry = daysLeftUntilExpiry,
+                    deviceName = deviceName,
+                )
+                DrawerItemTv(
+                    modifier =
+                        Modifier.align(Alignment.CenterStart).onFocusChanged {
+                            focusRequester.saveFocusedChild()
+                        },
+                    icon = Icons.Default.AccountCircle,
+                    text = stringResource(R.string.settings_account),
+                    onClick = onAccountClick,
+                )
+                DrawerItemTv(
+                    modifier =
+                        Modifier.align(Alignment.BottomStart).onFocusChanged {
+                            focusRequester.saveFocusedChild()
+                        },
+                    icon = Icons.Default.Settings,
+                    text = stringResource(R.string.settings),
+                    onClick = onSettingsClick,
+                )
+            }
+        },
+        content = content,
+    )
+}
+
+@Composable
+private fun NavigationDrawerScope.DrawerItemTv(
+    modifier: Modifier = Modifier,
+    icon: ImageVector,
+    text: String,
+    onClick: () -> Unit,
+) {
+    NavigationDrawerItem(
+        modifier = modifier,
+        onClick = onClick,
+        selected = false,
+        leadingContent = {
+            Icon(
+                tint = MaterialTheme.colorScheme.onPrimary,
+                imageVector = icon,
+                contentDescription = null,
+            )
+        },
+    ) {
+        Text(
+            modifier = Modifier.fillMaxWidth(),
+            color = MaterialTheme.colorScheme.onPrimary,
+            text = text,
+            maxLines = 1,
+            overflow = TextOverflow.Clip,
+        )
+    }
+}
+
+@Composable
+private fun NavigationDrawerTvHeader(
+    modifier: Modifier = Modifier,
+    isExpanded: Boolean,
+    daysLeftUntilExpiry: Long?,
+    deviceName: String?,
+) {
+    Column(
+        modifier =
+            modifier.width(
+                if (isExpanded) NavigationDrawerItemDefaults.ExpandedDrawerItemWidth
+                else NavigationDrawerItemDefaults.CollapsedDrawerItemWidth
+            )
+    ) {
+        Row(
+            verticalAlignment = Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.spacedBy(Dimens.mullvadLogoTextStartPadding),
+        ) {
+            Icon(
+                modifier = Modifier.size(Dimens.mediumIconSize),
+                painter = painterResource(id = R.drawable.logo_icon),
+                contentDescription = null, // No meaningful user info or action.
+                tint = Color.Unspecified, // Logo should not be tinted
+            )
+            if (isExpanded) {
+                Icon(
+                    modifier = Modifier.height(Dimens.mullvadLogoTextHeight),
+                    painter = painterResource(id = R.drawable.logo_text),
+                    contentDescription = null, // No meaningful user info or action.
+                    tint = Color.Unspecified, // Logo should not be tinted
+                )
+            }
+        }
+        Spacer(Modifier.height(8.dp))
+
+        if (isExpanded) {
+            Text(
+                modifier = Modifier.fillMaxWidth(),
+                text = stringResource(R.string.top_bar_device_name, deviceName ?: ""),
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onPrimary,
+                maxLines = 1,
+                overflow = TextOverflow.Clip,
+            )
+            Spacer(Modifier.height(4.dp))
+            Text(
+                text =
+                    stringResource(
+                        id = R.string.top_bar_time_left,
+                        pluralStringResource(
+                            id = R.plurals.days,
+                            daysLeftUntilExpiry?.toInt() ?: 0,
+                            daysLeftUntilExpiry ?: 0,
+                        ),
+                    ),
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onPrimary,
+                maxLines = 1,
+                overflow = TextOverflow.Clip,
+            )
+        }
+    }
+}
diff --git a/android/lib/tv/src/main/kotlin/net/mullvad/mullvadvpn/lib/tv/NotificationBannerTv.kt b/android/lib/tv/src/main/kotlin/net/mullvad/mullvadvpn/lib/tv/NotificationBannerTv.kt
new file mode 100644
index 0000000000..97d986c36a
--- /dev/null
+++ b/android/lib/tv/src/main/kotlin/net/mullvad/mullvadvpn/lib/tv/NotificationBannerTv.kt
@@ -0,0 +1,63 @@
+package net.mullvad.mullvadvpn.lib.tv
+
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import net.mullvad.mullvadvpn.lib.model.InAppNotification
+import net.mullvad.mullvadvpn.lib.theme.AppTheme
+import net.mullvad.mullvadvpn.lib.theme.Dimens
+import net.mullvad.mullvadvpn.lib.ui.component.AnimatedNotificationBanner
+
+@Preview
+@Composable
+fun PreviewNotificationBannerTv() {
+    AppTheme {
+        NotificationBannerTv(
+            notification = InAppNotification.NewDevice("Sad Panda"),
+            isPlayBuild = true,
+            openAppListing = {},
+            onClickShowAccount = {},
+            onClickShowChangelog = {},
+            onClickDismissChangelog = {},
+        ) {}
+    }
+}
+
+@Composable
+fun NotificationBannerTv(
+    modifier: Modifier = Modifier,
+    notification: InAppNotification?,
+    isPlayBuild: Boolean,
+    openAppListing: () -> Unit,
+    onClickShowAccount: () -> Unit,
+    onClickShowChangelog: () -> Unit,
+    onClickDismissChangelog: () -> Unit,
+    onClickDismissNewDevice: () -> Unit,
+) {
+    AnimatedNotificationBanner(
+        modifier = modifier,
+        notificationModifier =
+            Modifier.width(Dimens.connectionCardMaxWidth)
+                .padding(start = Dimens.mediumPadding, end = Dimens.mediumPadding)
+                .clip(
+                    RoundedCornerShape(
+                        bottomEnd = Dimens.mediumPadding,
+                        bottomStart = Dimens.mediumPadding,
+                        topStart = 0.dp,
+                        topEnd = 0.dp,
+                    )
+                ),
+        notification = notification,
+        isPlayBuild = isPlayBuild,
+        openAppListing = openAppListing,
+        onClickShowAccount = onClickShowAccount,
+        onClickShowChangelog = onClickShowChangelog,
+        onClickDismissChangelog = onClickDismissChangelog,
+        onClickDismissNewDevice = onClickDismissNewDevice,
+    )
+}