Call finishedCallback after transitioning away from DREAM

Bug: b/288279203
Test: atest DreamingToLockscreenTransitionViewModelTest
Change-Id: I7e1a8a5fd6ca02e33622c3e106f4025662da1f33
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
index bc41ab31..783517d 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
@@ -139,6 +139,7 @@
 import com.android.systemui.flags.Flags;
 import com.android.systemui.flags.SystemPropertiesHelper;
 import com.android.systemui.keyguard.dagger.KeyguardModule;
+import com.android.systemui.keyguard.shared.model.TransitionStep;
 import com.android.systemui.keyguard.ui.viewmodel.DreamingToLockscreenTransitionViewModel;
 import com.android.systemui.log.SessionTracker;
 import com.android.systemui.navigationbar.NavigationModeController;
@@ -538,6 +539,8 @@
 
     private CentralSurfaces mCentralSurfaces;
 
+    private IRemoteAnimationFinishedCallback mUnoccludeFromDreamFinishedCallback;
+
     private final DeviceConfig.OnPropertiesChangedListener mOnPropertiesChangedListener =
             new DeviceConfig.OnPropertiesChangedListener() {
             @Override
@@ -1165,6 +1168,7 @@
                             getRemoteSurfaceAlphaApplier().accept(0.0f);
                             mDreamingToLockscreenTransitionViewModel.get()
                                     .startTransition();
+                            mUnoccludeFromDreamFinishedCallback = finishedCallback;
                             return;
                         }
 
@@ -1244,6 +1248,19 @@
         };
     }
 
+    private Consumer<TransitionStep> getFinishedCallbackConsumer() {
+        return (TransitionStep step) -> {
+            if (mUnoccludeFromDreamFinishedCallback == null) return;
+            try {
+                mUnoccludeFromDreamFinishedCallback.onAnimationFinished();
+                mUnoccludeFromDreamFinishedCallback = null;
+            } catch (RemoteException e) {
+                Log.e(TAG, "Wasn't able to callback", e);
+            }
+            mInteractionJankMonitor.end(CUJ_LOCKSCREEN_OCCLUSION);
+        };
+    }
+
     private DeviceConfigProxy mDeviceConfig;
     private DozeParameters mDozeParameters;
 
@@ -1503,6 +1520,9 @@
                 collectFlow(viewRootImpl.getView(),
                         mDreamingToLockscreenTransitionViewModel.get().getDreamOverlayAlpha(),
                         getRemoteSurfaceAlphaApplier(), mMainDispatcher);
+                collectFlow(viewRootImpl.getView(),
+                        mDreamingToLockscreenTransitionViewModel.get().getTransitionEnded(),
+                        getFinishedCallbackConsumer(), mMainDispatcher);
             }
         }
         // Most services aren't available until the system reaches the ready state, so we
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/domain/interactor/KeyguardTransitionInteractor.kt b/packages/SystemUI/src/com/android/systemui/keyguard/domain/interactor/KeyguardTransitionInteractor.kt
index 42f12f8..41a81a8 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/domain/interactor/KeyguardTransitionInteractor.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/domain/interactor/KeyguardTransitionInteractor.kt
@@ -49,11 +49,15 @@
 ) {
     /** (any)->GONE transition information */
     val anyStateToGoneTransition: Flow<TransitionStep> =
-        repository.transitions.filter { step -> step.to == KeyguardState.GONE }
+        repository.transitions.filter { step -> step.to == GONE }
 
     /** (any)->AOD transition information */
     val anyStateToAodTransition: Flow<TransitionStep> =
-        repository.transitions.filter { step -> step.to == KeyguardState.AOD }
+        repository.transitions.filter { step -> step.to == AOD }
+
+    /** DREAMING->(any) transition information. */
+    val fromDreamingTransition: Flow<TransitionStep> =
+        repository.transitions.filter { step -> step.from == DREAMING }
 
     /** AOD->LOCKSCREEN transition information. */
     val aodToLockscreenTransition: Flow<TransitionStep> = repository.transition(AOD, LOCKSCREEN)
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToLockscreenTransitionViewModel.kt b/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToLockscreenTransitionViewModel.kt
index 9ca4bd6..e24d326 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToLockscreenTransitionViewModel.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToLockscreenTransitionViewModel.kt
@@ -48,7 +48,7 @@
         )
 
     val transitionEnded =
-        keyguardTransitionInteractor.dreamingToLockscreenTransition.filter { step ->
+        keyguardTransitionInteractor.fromDreamingTransition.filter { step ->
             step.transitionState == TransitionState.FINISHED ||
                 step.transitionState == TransitionState.CANCELED
         }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/KeyguardViewMediatorTest.java b/packages/SystemUI/tests/src/com/android/systemui/keyguard/KeyguardViewMediatorTest.java
index c280538..7a501a8 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/keyguard/KeyguardViewMediatorTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/KeyguardViewMediatorTest.java
@@ -186,6 +186,8 @@
         when(mStatusBarKeyguardViewManager.getViewRootImpl()).thenReturn(testViewRoot);
         when(mDreamingToLockscreenTransitionViewModel.getDreamOverlayAlpha())
                 .thenReturn(mock(Flow.class));
+        when(mDreamingToLockscreenTransitionViewModel.getTransitionEnded())
+                .thenReturn(mock(Flow.class));
         mNotificationShadeWindowController = new NotificationShadeWindowControllerImpl(mContext,
                 mWindowManager, mActivityManager, mDozeParameters, mStatusBarStateController,
                 mConfigurationController, mViewMediator, mKeyguardBypassController,
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToLockscreenTransitionViewModelTest.kt b/packages/SystemUI/tests/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToLockscreenTransitionViewModelTest.kt
index a341346..ab994b7 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToLockscreenTransitionViewModelTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/ui/viewmodel/DreamingToLockscreenTransitionViewModelTest.kt
@@ -22,8 +22,16 @@
 import com.android.systemui.SysuiTestCase
 import com.android.systemui.keyguard.data.repository.FakeKeyguardTransitionRepository
 import com.android.systemui.keyguard.domain.interactor.KeyguardTransitionInteractor
-import com.android.systemui.keyguard.shared.model.KeyguardState
+import com.android.systemui.keyguard.shared.model.KeyguardState.AOD
+import com.android.systemui.keyguard.shared.model.KeyguardState.DOZING
+import com.android.systemui.keyguard.shared.model.KeyguardState.DREAMING
+import com.android.systemui.keyguard.shared.model.KeyguardState.GONE
+import com.android.systemui.keyguard.shared.model.KeyguardState.LOCKSCREEN
 import com.android.systemui.keyguard.shared.model.TransitionState
+import com.android.systemui.keyguard.shared.model.TransitionState.CANCELED
+import com.android.systemui.keyguard.shared.model.TransitionState.FINISHED
+import com.android.systemui.keyguard.shared.model.TransitionState.RUNNING
+import com.android.systemui.keyguard.shared.model.TransitionState.STARTED
 import com.android.systemui.keyguard.shared.model.TransitionStep
 import com.android.systemui.util.mockito.mock
 import com.google.common.collect.Range
@@ -60,7 +68,7 @@
             val job =
                 underTest.dreamOverlayTranslationY(pixels).onEach { values.add(it) }.launchIn(this)
 
-            repository.sendTransitionStep(step(0f, TransitionState.STARTED))
+            repository.sendTransitionStep(step(0f, STARTED))
             repository.sendTransitionStep(step(0f))
             repository.sendTransitionStep(step(0.3f))
             repository.sendTransitionStep(step(0.5f))
@@ -82,7 +90,7 @@
             val job = underTest.dreamOverlayAlpha.onEach { values.add(it) }.launchIn(this)
 
             // Should start running here...
-            repository.sendTransitionStep(step(0f, TransitionState.STARTED))
+            repository.sendTransitionStep(step(0f, STARTED))
             repository.sendTransitionStep(step(0f))
             repository.sendTransitionStep(step(0.1f))
             repository.sendTransitionStep(step(0.5f))
@@ -104,7 +112,7 @@
 
             val job = underTest.lockscreenAlpha.onEach { values.add(it) }.launchIn(this)
 
-            repository.sendTransitionStep(step(0f, TransitionState.STARTED))
+            repository.sendTransitionStep(step(0f, STARTED))
             repository.sendTransitionStep(step(0f))
             repository.sendTransitionStep(step(0.1f))
             repository.sendTransitionStep(step(0.2f))
@@ -126,7 +134,7 @@
             val job =
                 underTest.lockscreenTranslationY(pixels).onEach { values.add(it) }.launchIn(this)
 
-            repository.sendTransitionStep(step(0f, TransitionState.STARTED))
+            repository.sendTransitionStep(step(0f, STARTED))
             repository.sendTransitionStep(step(0f))
             repository.sendTransitionStep(step(0.3f))
             repository.sendTransitionStep(step(0.5f))
@@ -138,13 +146,44 @@
             job.cancel()
         }
 
-    private fun step(
-        value: Float,
-        state: TransitionState = TransitionState.RUNNING
-    ): TransitionStep {
+    @Test
+    fun transitionEnded() =
+        runTest(UnconfinedTestDispatcher()) {
+            val values = mutableListOf<TransitionStep>()
+
+            val job = underTest.transitionEnded.onEach { values.add(it) }.launchIn(this)
+
+            repository.sendTransitionStep(TransitionStep(DOZING, DREAMING, 0.0f, STARTED))
+            repository.sendTransitionStep(TransitionStep(DOZING, DREAMING, 1.0f, FINISHED))
+
+            repository.sendTransitionStep(TransitionStep(DREAMING, LOCKSCREEN, 0.0f, STARTED))
+            repository.sendTransitionStep(TransitionStep(DREAMING, LOCKSCREEN, 0.1f, RUNNING))
+            repository.sendTransitionStep(TransitionStep(DREAMING, LOCKSCREEN, 1.0f, FINISHED))
+
+            repository.sendTransitionStep(TransitionStep(LOCKSCREEN, DREAMING, 0.0f, STARTED))
+            repository.sendTransitionStep(TransitionStep(LOCKSCREEN, DREAMING, 0.5f, RUNNING))
+            repository.sendTransitionStep(TransitionStep(LOCKSCREEN, DREAMING, 1.0f, FINISHED))
+
+            repository.sendTransitionStep(TransitionStep(DREAMING, GONE, 0.0f, STARTED))
+            repository.sendTransitionStep(TransitionStep(DREAMING, GONE, 0.5f, RUNNING))
+            repository.sendTransitionStep(TransitionStep(DREAMING, GONE, 1.0f, CANCELED))
+
+            repository.sendTransitionStep(TransitionStep(DREAMING, AOD, 0.0f, STARTED))
+            repository.sendTransitionStep(TransitionStep(DREAMING, AOD, 1.0f, FINISHED))
+
+            assertThat(values.size).isEqualTo(3)
+            values.forEach {
+                assertThat(it.transitionState == FINISHED || it.transitionState == CANCELED)
+                    .isTrue()
+            }
+
+            job.cancel()
+        }
+
+    private fun step(value: Float, state: TransitionState = RUNNING): TransitionStep {
         return TransitionStep(
-            from = KeyguardState.DREAMING,
-            to = KeyguardState.LOCKSCREEN,
+            from = DREAMING,
+            to = LOCKSCREEN,
             value = value,
             transitionState = state,
             ownerName = "DreamingToLockscreenTransitionViewModelTest"