Fix DREAMING->AOD animation

If the device enters DREAMING and the user hits the power
button, we transition to AOD state. Make sure to fade in
lockscreen content.

Fixes: 329378373
Test: atest KeyguardRootViewModelTest
Flag: com.android.systemui.migrate_clocks_to_blueprint
Change-Id: I6b15cc7c4b6cc42bce794895298afa804296fe0f

4 files changed, 44 insertions, 1 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToAodTransitionViewModel.kt b/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToAodTransitionViewModel.kt
index 754ed6cc3327..1ee0368f15b1 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToAodTransitionViewModel.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToAodTransitionViewModel.kt
@@ -25,6 +25,7 @@ import com.android.systemui.keyguard.shared.model.KeyguardState.DREAMING
 import com.android.systemui.keyguard.ui.KeyguardTransitionAnimationFlow
 import com.android.systemui.keyguard.ui.transitions.DeviceEntryIconTransition
 import javax.inject.Inject
+import kotlin.time.Duration.Companion.milliseconds
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.emptyFlow
@@ -45,6 +46,13 @@ constructor(
             edge = Edge.create(from = DREAMING, to = AOD),
         )
 
+    /** Lockscreen views alpha */
+    val lockscreenAlpha: Flow<Float> =
+        transitionAnimation.sharedFlow(
+            duration = 300.milliseconds,
+            onStep = { it },
+        )
+
     val deviceEntryBackgroundViewAlpha: Flow<Float> =
         transitionAnimation.immediatelyTransitionTo(0f)
 
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/KeyguardRootViewModel.kt b/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/KeyguardRootViewModel.kt
index 7c468071d1f8..350ceb47848f 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/KeyguardRootViewModel.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/KeyguardRootViewModel.kt
@@ -91,8 +91,9 @@ constructor(
     private val dozingToGoneTransitionViewModel: DozingToGoneTransitionViewModel,
     private val dozingToLockscreenTransitionViewModel: DozingToLockscreenTransitionViewModel,
     private val dozingToOccludedTransitionViewModel: DozingToOccludedTransitionViewModel,
-    private val dreamingToLockscreenTransitionViewModel: DreamingToLockscreenTransitionViewModel,
+    private val dreamingToAodTransitionViewModel: DreamingToAodTransitionViewModel,
     private val dreamingToGoneTransitionViewModel: DreamingToGoneTransitionViewModel,
+    private val dreamingToLockscreenTransitionViewModel: DreamingToLockscreenTransitionViewModel,
     private val glanceableHubToLockscreenTransitionViewModel:
         GlanceableHubToLockscreenTransitionViewModel,
     private val goneToAodTransitionViewModel: GoneToAodTransitionViewModel,
@@ -243,6 +244,7 @@ constructor(
                         dozingToGoneTransitionViewModel.lockscreenAlpha(viewState),
                         dozingToLockscreenTransitionViewModel.lockscreenAlpha,
                         dozingToOccludedTransitionViewModel.lockscreenAlpha(viewState),
+                        dreamingToAodTransitionViewModel.lockscreenAlpha,
                         dreamingToGoneTransitionViewModel.lockscreenAlpha,
                         dreamingToLockscreenTransitionViewModel.lockscreenAlpha,
                         glanceableHubToLockscreenTransitionViewModel.keyguardAlpha,
diff --git a/packages/SystemUI/tests/utils/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToAodTransitionViewModelKosmos.kt b/packages/SystemUI/tests/utils/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToAodTransitionViewModelKosmos.kt
new file mode 100644
index 000000000000..b5f0b897deba
--- /dev/null
+++ b/packages/SystemUI/tests/utils/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToAodTransitionViewModelKosmos.kt
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2024 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.
+ */
+
+@file:OptIn(ExperimentalCoroutinesApi::class)
+
+package com.android.systemui.keyguard.ui.viewmodel
+
+import com.android.systemui.deviceentry.domain.interactor.deviceEntryUdfpsInteractor
+import com.android.systemui.keyguard.ui.keyguardTransitionAnimationFlow
+import com.android.systemui.kosmos.Kosmos
+import com.android.systemui.kosmos.Kosmos.Fixture
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+
+var Kosmos.dreamingToAodTransitionViewModel by Fixture {
+    DreamingToAodTransitionViewModel(
+        deviceEntryUdfpsInteractor = deviceEntryUdfpsInteractor,
+        animationFlow = keyguardTransitionAnimationFlow,
+    )
+}
diff --git a/packages/SystemUI/tests/utils/src/com/android/systemui/keyguard/ui/viewmodel/KeyguardRootViewModelKosmos.kt b/packages/SystemUI/tests/utils/src/com/android/systemui/keyguard/ui/viewmodel/KeyguardRootViewModelKosmos.kt
index 2567ffee9be8..3c5baa557513 100644
--- a/packages/SystemUI/tests/utils/src/com/android/systemui/keyguard/ui/viewmodel/KeyguardRootViewModelKosmos.kt
+++ b/packages/SystemUI/tests/utils/src/com/android/systemui/keyguard/ui/viewmodel/KeyguardRootViewModelKosmos.kt
@@ -46,6 +46,7 @@ val Kosmos.keyguardRootViewModel by Fixture {
         dozingToGoneTransitionViewModel = dozingToGoneTransitionViewModel,
         dozingToLockscreenTransitionViewModel = dozingToLockscreenTransitionViewModel,
         dozingToOccludedTransitionViewModel = dozingToOccludedTransitionViewModel,
+        dreamingToAodTransitionViewModel = dreamingToAodTransitionViewModel,
         dreamingToGoneTransitionViewModel = dreamingToGoneTransitionViewModel,
         dreamingToLockscreenTransitionViewModel = dreamingToLockscreenTransitionViewModel,
         glanceableHubToLockscreenTransitionViewModel = glanceableHubToLockscreenTransitionViewModel,