Introduce communal scene

This change introduces a communal scene that is placed to the right of
keyguard, and is protected by a config that is disabled by default.

Bug: 300483707
Fix: 300483707
Test: atest LockscreenSceneViewModelTest
Test: atest SceneFrameworkIntegrationTest
Test: atest SystemUiRoboTests:CommunalInteractorTest
Test: enable config_communalServiceEnabled in titan overlay, flexiglass on
(see go/flexiglass-dev-guide), swipe left on keyguard and see communal
scene
Test: without titan overlay change, flexiglass on, swipe left on
keyguard and nothing happens

Change-Id: I43429f68702895ba085cad09749dbfb33264bb60

19 files changed, 300 insertions, 19 deletions

diff --git a/packages/SystemUI/compose/facade/disabled/src/com/android/systemui/scene/CommunalSceneModule.kt b/packages/SystemUI/compose/facade/disabled/src/com/android/systemui/scene/CommunalSceneModule.kt
new file mode 100644
index 000000000000..f80a90659545
--- /dev/null
+++ b/packages/SystemUI/compose/facade/disabled/src/com/android/systemui/scene/CommunalSceneModule.kt
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.scene
+
+import dagger.Module
+
+@Module interface CommunalSceneModule
diff --git a/packages/SystemUI/compose/facade/enabled/src/com/android/systemui/scene/CommunalSceneModule.kt b/packages/SystemUI/compose/facade/enabled/src/com/android/systemui/scene/CommunalSceneModule.kt
new file mode 100644
index 000000000000..94b5db2535ab
--- /dev/null
+++ b/packages/SystemUI/compose/facade/enabled/src/com/android/systemui/scene/CommunalSceneModule.kt
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.scene
+
+import com.android.systemui.communal.ui.compose.CommunalScene
+import com.android.systemui.scene.shared.model.Scene
+import dagger.Binds
+import dagger.Module
+import dagger.multibindings.IntoSet
+
+@Module
+interface CommunalSceneModule {
+    @Binds @IntoSet fun communalScene(scene: CommunalScene): Scene
+}
diff --git a/packages/SystemUI/compose/features/src/com/android/systemui/communal/ui/compose/CommunalScene.kt b/packages/SystemUI/compose/features/src/com/android/systemui/communal/ui/compose/CommunalScene.kt
new file mode 100644
index 000000000000..0d2ba2824846
--- /dev/null
+++ b/packages/SystemUI/compose/features/src/com/android/systemui/communal/ui/compose/CommunalScene.kt
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.communal.ui.compose
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import com.android.compose.animation.scene.SceneScope
+import com.android.systemui.dagger.SysUISingleton
+import com.android.systemui.scene.shared.model.Direction
+import com.android.systemui.scene.shared.model.SceneKey
+import com.android.systemui.scene.shared.model.SceneModel
+import com.android.systemui.scene.shared.model.UserAction
+import com.android.systemui.scene.ui.composable.ComposableScene
+import javax.inject.Inject
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+
+/** The communal scene shows glanceable hub when the device is locked and docked. */
+@SysUISingleton
+class CommunalScene @Inject constructor() : ComposableScene {
+    override val key = SceneKey.Communal
+
+    override val destinationScenes: StateFlow<Map<UserAction, SceneModel>> =
+        MutableStateFlow<Map<UserAction, SceneModel>>(
+                mapOf(
+                    UserAction.Swipe(Direction.RIGHT) to SceneModel(SceneKey.Lockscreen),
+                )
+            )
+            .asStateFlow()
+
+    @Composable
+    override fun SceneScope.Content(modifier: Modifier) {
+        Box(
+            modifier = modifier.fillMaxSize().background(Color.White),
+        ) {
+            Text(
+                modifier = Modifier.align(Alignment.Center),
+                text = "Hello Communal!",
+            )
+        }
+    }
+}
diff --git a/packages/SystemUI/compose/features/src/com/android/systemui/keyguard/ui/composable/LockscreenScene.kt b/packages/SystemUI/compose/features/src/com/android/systemui/keyguard/ui/composable/LockscreenScene.kt
index f1da16862220..77daebb9b8a0 100644
--- a/packages/SystemUI/compose/features/src/com/android/systemui/keyguard/ui/composable/LockscreenScene.kt
+++ b/packages/SystemUI/compose/features/src/com/android/systemui/keyguard/ui/composable/LockscreenScene.kt
@@ -68,11 +68,17 @@ constructor(
 
     override val destinationScenes: StateFlow<Map<UserAction, SceneModel>> =
         viewModel.upDestinationSceneKey
-            .map { pageKey -> destinationScenes(up = pageKey) }
+            .map { pageKey ->
+                destinationScenes(up = pageKey, left = viewModel.leftDestinationSceneKey)
+            }
             .stateIn(
                 scope = applicationScope,
                 started = SharingStarted.Eagerly,
-                initialValue = destinationScenes(up = viewModel.upDestinationSceneKey.value)
+                initialValue =
+                    destinationScenes(
+                        up = viewModel.upDestinationSceneKey.value,
+                        left = viewModel.leftDestinationSceneKey,
+                    )
             )
 
     @Composable
@@ -88,9 +94,11 @@ constructor(
 
     private fun destinationScenes(
         up: SceneKey?,
+        left: SceneKey?,
     ): Map<UserAction, SceneModel> {
         return buildMap {
             up?.let { this[UserAction.Swipe(Direction.UP)] = SceneModel(up) }
+            left?.let { this[UserAction.Swipe(Direction.LEFT)] = SceneModel(left) }
             this[UserAction.Swipe(Direction.DOWN)] = SceneModel(SceneKey.Shade)
         }
     }
diff --git a/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/SceneContainerTransitions.kt b/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/SceneContainerTransitions.kt
index 404bf81ee387..2848245c42b1 100644
--- a/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/SceneContainerTransitions.kt
+++ b/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/SceneContainerTransitions.kt
@@ -5,6 +5,7 @@ import com.android.systemui.scene.ui.composable.transitions.bouncerToGoneTransit
 import com.android.systemui.scene.ui.composable.transitions.goneToQuickSettingsTransition
 import com.android.systemui.scene.ui.composable.transitions.goneToShadeTransition
 import com.android.systemui.scene.ui.composable.transitions.lockscreenToBouncerTransition
+import com.android.systemui.scene.ui.composable.transitions.lockscreenToCommunalTransition
 import com.android.systemui.scene.ui.composable.transitions.lockscreenToGoneTransition
 import com.android.systemui.scene.ui.composable.transitions.lockscreenToQuickSettingsTransition
 import com.android.systemui.scene.ui.composable.transitions.lockscreenToShadeTransition
@@ -13,7 +14,7 @@ import com.android.systemui.scene.ui.composable.transitions.shadeToQuickSettings
 /**
  * Comprehensive definition of all transitions between scenes in [SceneContainer].
  *
- * Transitions are automatically reversible, so define only one transition per scene pair. By
+ * Transitions are automatically reversible, so define only one transition per scene pair. By\
  * convention, use the more common transition direction when defining the pair order, e.g.
  * Lockscreen to Bouncer rather than Bouncer to Lockscreen.
  *
@@ -27,6 +28,7 @@ val SceneContainerTransitions = transitions {
     from(Gone, to = Shade) { goneToShadeTransition() }
     from(Gone, to = QuickSettings) { goneToQuickSettingsTransition() }
     from(Lockscreen, to = Bouncer) { lockscreenToBouncerTransition() }
+    from(Lockscreen, to = Communal) { lockscreenToCommunalTransition() }
     from(Lockscreen, to = Shade) { lockscreenToShadeTransition() }
     from(Lockscreen, to = QuickSettings) { lockscreenToQuickSettingsTransition() }
     from(Lockscreen, to = Gone) { lockscreenToGoneTransition() }
diff --git a/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/TransitionSceneKeys.kt b/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/TransitionSceneKeys.kt
index 8d0d7050dcca..5336bf646231 100644
--- a/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/TransitionSceneKeys.kt
+++ b/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/TransitionSceneKeys.kt
@@ -8,6 +8,7 @@ val Bouncer = SceneKey.Bouncer.toTransitionSceneKey()
 val Shade = SceneKey.Shade.toTransitionSceneKey()
 val QuickSettings = SceneKey.QuickSettings.toTransitionSceneKey()
 val Gone = SceneKey.Gone.toTransitionSceneKey()
+val Communal = SceneKey.Communal.toTransitionSceneKey()
 
 // TODO(b/293899074): Remove this file once we can use the scene keys from SceneTransitionLayout.
 fun SceneKey.toTransitionSceneKey(): SceneTransitionSceneKey {
diff --git a/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/transitions/FromLockscreenToCommunalTransition.kt b/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/transitions/FromLockscreenToCommunalTransition.kt
new file mode 100644
index 000000000000..ea8110ad8518
--- /dev/null
+++ b/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/transitions/FromLockscreenToCommunalTransition.kt
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.scene.ui.composable.transitions
+
+import androidx.compose.animation.core.tween
+import com.android.compose.animation.scene.Edge
+import com.android.compose.animation.scene.TransitionBuilder
+import com.android.systemui.scene.ui.composable.Communal
+import com.android.systemui.scene.ui.composable.Lockscreen
+
+fun TransitionBuilder.lockscreenToCommunalTransition() {
+    spec = tween(durationMillis = 500)
+
+    // Translate lockscreen to the left.
+    translate(Lockscreen.rootElementKey, Edge.Left)
+
+    // Translate communal from the right.
+    translate(Communal.rootElementKey, Edge.Right)
+}
diff --git a/packages/SystemUI/src/com/android/systemui/communal/data/repository/CommunalRepository.kt b/packages/SystemUI/src/com/android/systemui/communal/data/repository/CommunalRepository.kt
new file mode 100644
index 000000000000..ea3ddacd7d5e
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/communal/data/repository/CommunalRepository.kt
@@ -0,0 +1,21 @@
+package com.android.systemui.communal.data.repository
+
+import com.android.systemui.dagger.SysUISingleton
+import com.android.systemui.flags.FeatureFlagsClassic
+import com.android.systemui.flags.Flags
+import javax.inject.Inject
+
+/** Encapsulates the state of communal mode. */
+interface CommunalRepository {
+    /** Whether communal features are enabled. */
+    val isCommunalEnabled: Boolean
+}
+
+@SysUISingleton
+class CommunalRepositoryImpl
+@Inject
+constructor(
+    featureFlags: FeatureFlagsClassic,
+) : CommunalRepository {
+    override val isCommunalEnabled = featureFlags.isEnabled(Flags.COMMUNAL_HUB)
+}
diff --git a/packages/SystemUI/src/com/android/systemui/communal/data/repository/CommunalRepositoryModule.kt b/packages/SystemUI/src/com/android/systemui/communal/data/repository/CommunalRepositoryModule.kt
new file mode 100644
index 000000000000..9d95b9eb262a
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/communal/data/repository/CommunalRepositoryModule.kt
@@ -0,0 +1,9 @@
+package com.android.systemui.communal.data.repository
+
+import dagger.Binds
+import dagger.Module
+
+@Module
+interface CommunalRepositoryModule {
+    @Binds fun communalRepository(impl: CommunalRepositoryImpl): CommunalRepository
+}
diff --git a/packages/SystemUI/src/com/android/systemui/communal/domain/interactor/CommunalInteractor.kt b/packages/SystemUI/src/com/android/systemui/communal/domain/interactor/CommunalInteractor.kt
index 6dc305e6f826..9fb8da3e76af 100644
--- a/packages/SystemUI/src/com/android/systemui/communal/domain/interactor/CommunalInteractor.kt
+++ b/packages/SystemUI/src/com/android/systemui/communal/domain/interactor/CommunalInteractor.kt
@@ -16,6 +16,7 @@
 
 package com.android.systemui.communal.domain.interactor
 
+import com.android.systemui.communal.data.repository.CommunalRepository
 import com.android.systemui.communal.data.repository.CommunalWidgetRepository
 import com.android.systemui.communal.shared.CommunalAppWidgetInfo
 import com.android.systemui.dagger.SysUISingleton
@@ -27,8 +28,12 @@ import kotlinx.coroutines.flow.Flow
 class CommunalInteractor
 @Inject
 constructor(
+    communalRepository: CommunalRepository,
     widgetRepository: CommunalWidgetRepository,
 ) {
+    /** Whether communal features are enabled. */
+    val isCommunalEnabled: Boolean = communalRepository.isCommunalEnabled
+
     /** A flow of info about the widget to be displayed, or null if widget is unavailable. */
     val appWidgetInfo: Flow<CommunalAppWidgetInfo?> = widgetRepository.stopwatchAppWidgetInfo
 }
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/dagger/KeyguardModule.java b/packages/SystemUI/src/com/android/systemui/keyguard/dagger/KeyguardModule.java
index 13dfe24e7e19..03c166c05a62 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/dagger/KeyguardModule.java
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/dagger/KeyguardModule.java
@@ -37,6 +37,7 @@ import com.android.systemui.animation.ActivityLaunchAnimator;
 import com.android.systemui.broadcast.BroadcastDispatcher;
 import com.android.systemui.classifier.FalsingCollector;
 import com.android.systemui.classifier.FalsingModule;
+import com.android.systemui.communal.data.repository.CommunalRepositoryModule;
 import com.android.systemui.communal.data.repository.CommunalWidgetRepositoryModule;
 import com.android.systemui.dagger.SysUISingleton;
 import com.android.systemui.dagger.qualifiers.Main;
@@ -93,6 +94,7 @@ import kotlinx.coroutines.CoroutineDispatcher;
         KeyguardStatusViewComponent.class,
         KeyguardUserSwitcherComponent.class},
         includes = {
+            CommunalRepositoryModule.class,
             CommunalWidgetRepositoryModule.class,
             FalsingModule.class,
             KeyguardDataQuickAffordanceModule.class,
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModel.kt b/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModel.kt
index cfcbdac4c4e9..91b33572345d 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModel.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModel.kt
@@ -17,6 +17,7 @@
 package com.android.systemui.keyguard.ui.viewmodel
 
 import com.android.systemui.authentication.domain.interactor.AuthenticationInteractor
+import com.android.systemui.communal.domain.interactor.CommunalInteractor
 import com.android.systemui.dagger.SysUISingleton
 import com.android.systemui.dagger.qualifiers.Application
 import com.android.systemui.scene.shared.model.SceneKey
@@ -34,6 +35,7 @@ class LockscreenSceneViewModel
 constructor(
     @Application applicationScope: CoroutineScope,
     authenticationInteractor: AuthenticationInteractor,
+    communalInteractor: CommunalInteractor,
     val longPress: KeyguardLongPressViewModel,
 ) {
     /** The key of the scene we should switch to when swiping up. */
@@ -53,4 +55,12 @@ constructor(
             SceneKey.Bouncer
         }
     }
+
+    /** The key of the scene we should switch to when swiping left. */
+    val leftDestinationSceneKey: SceneKey? =
+        if (communalInteractor.isCommunalEnabled) {
+            SceneKey.Communal
+        } else {
+            null
+        }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/scene/SceneContainerFrameworkModule.kt b/packages/SystemUI/src/com/android/systemui/scene/SceneContainerFrameworkModule.kt
index b36ec3274083..0f3acaf7fc0c 100644
--- a/packages/SystemUI/src/com/android/systemui/scene/SceneContainerFrameworkModule.kt
+++ b/packages/SystemUI/src/com/android/systemui/scene/SceneContainerFrameworkModule.kt
@@ -33,6 +33,7 @@ import dagger.multibindings.IntoMap
     includes =
         [
             BouncerSceneModule::class,
+            CommunalSceneModule::class,
             EmptySceneModule::class,
             GoneSceneModule::class,
             LockscreenSceneModule::class,
@@ -65,6 +66,7 @@ interface SceneContainerFrameworkModule {
                 sceneKeys =
                     listOf(
                         SceneKey.Gone,
+                        SceneKey.Communal,
                         SceneKey.Lockscreen,
                         SceneKey.Bouncer,
                         SceneKey.Shade,
diff --git a/packages/SystemUI/src/com/android/systemui/scene/shared/model/SceneKey.kt b/packages/SystemUI/src/com/android/systemui/scene/shared/model/SceneKey.kt
index e7811e39aa6f..609d2b93a36e 100644
--- a/packages/SystemUI/src/com/android/systemui/scene/shared/model/SceneKey.kt
+++ b/packages/SystemUI/src/com/android/systemui/scene/shared/model/SceneKey.kt
@@ -16,7 +16,11 @@
 
 package com.android.systemui.scene.shared.model
 
-/** Keys of all known scenes. */
+/**
+ * Keys of all known scenes.
+ *
+ * PLEASE KEEP THE KEYS SORTED ALPHABETICALLY.
+ */
 sealed class SceneKey(
     private val loggingName: String,
 ) {
@@ -26,6 +30,9 @@ sealed class SceneKey(
      */
     object Bouncer : SceneKey("bouncer")
 
+    /** The communal scene shows the glanceable hub when device is locked and docked. */
+    object Communal : SceneKey("communal")
+
     /**
      * "Gone" is not a real scene but rather the absence of scenes when we want to skip showing any
      * content from the scene framework.
@@ -35,14 +42,14 @@ sealed class SceneKey(
     /** The lockscreen is the scene that shows when the device is locked. */
     object Lockscreen : SceneKey("lockscreen")
 
+    /** The quick settings scene shows the quick setting tiles. */
+    object QuickSettings : SceneKey("quick_settings")
+
     /**
      * The shade is the scene whose primary purpose is to show a scrollable list of notifications.
      */
     object Shade : SceneKey("shade")
 
-    /** The quick settings scene shows the quick setting tiles. */
-    object QuickSettings : SceneKey("quick_settings")
-
     override fun toString(): String {
         return loggingName
     }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/communal/domain/interactor/CommunalInteractorTest.kt b/packages/SystemUI/tests/src/com/android/systemui/communal/domain/interactor/CommunalInteractorTest.kt
index d28f530f04f3..ddf788e47bf2 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/communal/domain/interactor/CommunalInteractorTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/communal/domain/interactor/CommunalInteractorTest.kt
@@ -21,6 +21,7 @@ import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.filters.SmallTest
 import com.android.systemui.RoboPilotTest
 import com.android.systemui.SysuiTestCase
+import com.android.systemui.communal.data.repository.FakeCommunalRepository
 import com.android.systemui.communal.data.repository.FakeCommunalWidgetRepository
 import com.android.systemui.communal.shared.CommunalAppWidgetInfo
 import com.android.systemui.coroutines.collectLastValue
@@ -44,6 +45,7 @@ class CommunalInteractorTest : SysuiTestCase() {
 
     private lateinit var testScope: TestScope
 
+    private lateinit var communalRepository: FakeCommunalRepository
     private lateinit var widgetRepository: FakeCommunalWidgetRepository
     private lateinit var interactor: CommunalInteractor
 
@@ -52,12 +54,13 @@ class CommunalInteractorTest : SysuiTestCase() {
         MockitoAnnotations.initMocks(this)
 
         testScope = TestScope()
+        communalRepository = FakeCommunalRepository()
         widgetRepository = FakeCommunalWidgetRepository()
-        interactor = CommunalInteractor(widgetRepository)
+        interactor = CommunalInteractor(communalRepository, widgetRepository)
     }
 
     @Test
-    fun testAppWidgetInfoFlow() =
+    fun appWidgetInfoFlow() =
         testScope.runTest {
             val lastAppWidgetInfo = collectLastValue(interactor.appWidgetInfo)
             runCurrent()
@@ -67,4 +70,22 @@ class CommunalInteractorTest : SysuiTestCase() {
             runCurrent()
             assertThat(lastAppWidgetInfo()).isEqualTo(stopwatchAppWidgetInfo)
         }
+
+    @Test
+    fun communalEnabled() =
+        testScope.runTest {
+            communalRepository.setIsCommunalEnabled(true)
+
+            val interactor = CommunalInteractor(communalRepository, widgetRepository)
+            assertThat(interactor.isCommunalEnabled).isTrue()
+        }
+
+    @Test
+    fun communalDisabled() =
+        testScope.runTest {
+            communalRepository.setIsCommunalEnabled(false)
+
+            val interactor = CommunalInteractor(communalRepository, widgetRepository)
+            assertThat(interactor.isCommunalEnabled).isFalse()
+        }
 }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModelTest.kt b/packages/SystemUI/tests/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModelTest.kt
index f40ccfde5a92..1681cfdce822 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModelTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/ui/viewmodel/LockscreenSceneViewModelTest.kt
@@ -42,15 +42,7 @@ class LockscreenSceneViewModelTest : SysuiTestCase() {
             repository = utils.authenticationRepository(),
         )
 
-    private val underTest =
-        LockscreenSceneViewModel(
-            applicationScope = testScope.backgroundScope,
-            authenticationInteractor = authenticationInteractor,
-            longPress =
-                KeyguardLongPressViewModel(
-                    interactor = mock(),
-                ),
-        )
+    private val underTest = createLockscreenSceneViewModel()
 
     @Test
     fun upTransitionSceneKey_canSwipeToUnlock_gone() =
@@ -74,4 +66,34 @@ class LockscreenSceneViewModelTest : SysuiTestCase() {
 
             assertThat(upTransitionSceneKey).isEqualTo(SceneKey.Bouncer)
         }
+
+    @Test
+    fun leftTransitionSceneKey_communalIsEnabled_communal() =
+        testScope.runTest {
+            utils.communalRepository.setIsCommunalEnabled(true)
+            val underTest = createLockscreenSceneViewModel()
+
+            assertThat(underTest.leftDestinationSceneKey).isEqualTo(SceneKey.Communal)
+        }
+
+    @Test
+    fun leftTransitionSceneKey_communalIsDisabled_null() =
+        testScope.runTest {
+            utils.communalRepository.setIsCommunalEnabled(false)
+            val underTest = createLockscreenSceneViewModel()
+
+            assertThat(underTest.leftDestinationSceneKey).isNull()
+        }
+
+    private fun createLockscreenSceneViewModel(): LockscreenSceneViewModel {
+        return LockscreenSceneViewModel(
+            applicationScope = testScope.backgroundScope,
+            authenticationInteractor = authenticationInteractor,
+            communalInteractor = utils.communalInteractor(),
+            longPress =
+                KeyguardLongPressViewModel(
+                    interactor = mock(),
+                ),
+        )
+    }
 }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/scene/SceneFrameworkIntegrationTest.kt b/packages/SystemUI/tests/src/com/android/systemui/scene/SceneFrameworkIntegrationTest.kt
index 78385cd516c8..12ab24a62066 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/scene/SceneFrameworkIntegrationTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/scene/SceneFrameworkIntegrationTest.kt
@@ -99,6 +99,8 @@ class SceneFrameworkIntegrationTest : SysuiTestCase() {
             sceneInteractor = sceneInteractor,
         )
 
+    private val communalInteractor = utils.communalInteractor()
+
     private val transitionState =
         MutableStateFlow<ObservableTransitionState>(
             ObservableTransitionState.Idle(sceneContainerConfig.initialSceneKey)
@@ -125,6 +127,7 @@ class SceneFrameworkIntegrationTest : SysuiTestCase() {
         LockscreenSceneViewModel(
             applicationScope = testScope.backgroundScope,
             authenticationInteractor = authenticationInteractor,
+            communalInteractor = communalInteractor,
             longPress =
                 KeyguardLongPressViewModel(
                     interactor = mock(),
diff --git a/packages/SystemUI/tests/utils/src/com/android/systemui/communal/data/repository/FakeCommunalRepository.kt b/packages/SystemUI/tests/utils/src/com/android/systemui/communal/data/repository/FakeCommunalRepository.kt
new file mode 100644
index 000000000000..e1c6ddefc13b
--- /dev/null
+++ b/packages/SystemUI/tests/utils/src/com/android/systemui/communal/data/repository/FakeCommunalRepository.kt
@@ -0,0 +1,10 @@
+package com.android.systemui.communal.data.repository
+
+/** Fake implementation of [CommunalRepository]. */
+class FakeCommunalRepository : CommunalRepository {
+    override var isCommunalEnabled = false
+
+    fun setIsCommunalEnabled(value: Boolean) {
+        isCommunalEnabled = value
+    }
+}
diff --git a/packages/SystemUI/tests/utils/src/com/android/systemui/scene/SceneTestUtils.kt b/packages/SystemUI/tests/utils/src/com/android/systemui/scene/SceneTestUtils.kt
index 2d79e0f5f1e4..1620dc278950 100644
--- a/packages/SystemUI/tests/utils/src/com/android/systemui/scene/SceneTestUtils.kt
+++ b/packages/SystemUI/tests/utils/src/com/android/systemui/scene/SceneTestUtils.kt
@@ -31,6 +31,9 @@ import com.android.systemui.classifier.FalsingCollector
 import com.android.systemui.classifier.FalsingCollectorFake
 import com.android.systemui.classifier.domain.interactor.FalsingInteractor
 import com.android.systemui.common.ui.data.repository.FakeConfigurationRepository
+import com.android.systemui.communal.data.repository.FakeCommunalRepository
+import com.android.systemui.communal.data.repository.FakeCommunalWidgetRepository
+import com.android.systemui.communal.domain.interactor.CommunalInteractor
 import com.android.systemui.flags.FakeFeatureFlagsClassic
 import com.android.systemui.flags.Flags
 import com.android.systemui.keyguard.data.repository.FakeCommandQueue
@@ -94,7 +97,10 @@ class SceneTestUtils(
             )
         }
     }
-
+    val communalRepository: FakeCommunalRepository by lazy { FakeCommunalRepository() }
+    private val communalWidgetRepository: FakeCommunalWidgetRepository by lazy {
+        FakeCommunalWidgetRepository()
+    }
     val powerRepository: FakePowerRepository by lazy { FakePowerRepository() }
 
     private val context = test.context
@@ -171,6 +177,13 @@ class SceneTestUtils(
         )
     }
 
+    fun communalInteractor(): CommunalInteractor {
+        return CommunalInteractor(
+            communalRepository = communalRepository,
+            widgetRepository = communalWidgetRepository,
+        )
+    }
+
     fun bouncerInteractor(
         authenticationInteractor: AuthenticationInteractor,
         sceneInteractor: SceneInteractor,