Merge "Fix alpha fading of NotificationShelf in LS" into tm-qpr-dev am: f1bf56b71c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19867435

Change-Id: Idcb2f3da0a7dfe23d5c10b6d723e94a1540b6fb6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

3 files changed, 138 insertions, 23 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java
index cea3debe6379..41c0367772b5 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java
@@ -16,6 +16,8 @@
 
 package com.android.systemui.statusbar;
 
+import static com.android.keyguard.BouncerPanelExpansionCalculator.aboutToShowBouncerProgress;
+
 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.Resources;
@@ -90,6 +92,12 @@ public class NotificationShelf extends ActivatableNotificationView implements
         super(context, attrs);
     }
 
+    @VisibleForTesting
+    public NotificationShelf(Context context, AttributeSet attrs, boolean showNotificationShelf) {
+        super(context, attrs);
+        mShowNotificationShelf = showNotificationShelf;
+    }
+
     @Override
     @VisibleForTesting
     public void onFinishInflate() {
@@ -175,7 +183,11 @@ public class NotificationShelf extends ActivatableNotificationView implements
 
             if (ambientState.isExpansionChanging() && !ambientState.isOnKeyguard()) {
                 float expansion = ambientState.getExpansionFraction();
-                viewState.alpha = ShadeInterpolation.getContentAlpha(expansion);
+                if (ambientState.isBouncerInTransit()) {
+                    viewState.alpha = aboutToShowBouncerProgress(expansion);
+                } else {
+                    viewState.alpha = ShadeInterpolation.getContentAlpha(expansion);
+                }
             } else {
                 viewState.alpha = 1f - ambientState.getHideAmount();
             }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationShelfTest.kt b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationShelfTest.kt
index 3f190367f284..77418138158b 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationShelfTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationShelfTest.kt
@@ -3,15 +3,22 @@ package com.android.systemui.statusbar.notification.stack
 import android.testing.AndroidTestingRunner
 import android.testing.TestableLooper.RunWithLooper
 import androidx.test.filters.SmallTest
+import com.android.keyguard.BouncerPanelExpansionCalculator.aboutToShowBouncerProgress
 import com.android.systemui.SysuiTestCase
+import com.android.systemui.animation.ShadeInterpolation
 import com.android.systemui.statusbar.NotificationShelf
 import com.android.systemui.statusbar.StatusBarIconView
+import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow
 import com.android.systemui.statusbar.notification.row.ExpandableView
-import junit.framework.Assert.*
+import com.android.systemui.statusbar.notification.stack.StackScrollAlgorithm.StackScrollAlgorithmState
+import com.android.systemui.util.mockito.mock
+import junit.framework.Assert.assertEquals
+import junit.framework.Assert.assertFalse
+import junit.framework.Assert.assertTrue
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.mockito.Mockito.*
+import org.mockito.Mockito.mock
 import org.mockito.Mockito.`when` as whenever
 
 /**
@@ -22,13 +29,18 @@ import org.mockito.Mockito.`when` as whenever
 @RunWithLooper
 class NotificationShelfTest : SysuiTestCase() {
 
-    private val shelf = NotificationShelf(context, /* attrs */ null)
+    private val shelf = NotificationShelf(
+            context,
+            /* attrs */ null,
+            /* showNotificationShelf */true
+    )
     private val shelfState = shelf.viewState as NotificationShelf.ShelfState
     private val ambientState = mock(AmbientState::class.java)
+    private val hostLayoutController: NotificationStackScrollLayoutController = mock()
 
     @Before
     fun setUp() {
-        shelf.bind(ambientState, /* hostLayoutController */ null)
+        shelf.bind(ambientState, /* hostLayoutController */ hostLayoutController)
         shelf.layout(/* left */ 0, /* top */ 0, /* right */ 30, /* bottom */5)
     }
 
@@ -37,7 +49,7 @@ class NotificationShelfTest : SysuiTestCase() {
         setFractionToShade(0f)
         setOnLockscreen(true)
 
-        shelf.updateActualWidth(/* fractionToShade */ 0f, /* shortestWidth */ 10f);
+        shelf.updateActualWidth(/* fractionToShade */ 0f, /* shortestWidth */ 10f)
         assertTrue(shelf.actualWidth == 10)
 
         shelf.updateActualWidth(/* fractionToShade */ 0.5f, /* shortestWidth */ 10f)
@@ -155,7 +167,7 @@ class NotificationShelfTest : SysuiTestCase() {
         whenever(expandableView.actualHeight).thenReturn(20)
 
         whenever(expandableView.minHeight).thenReturn(20)
-        whenever(expandableView.shelfTransformationTarget).thenReturn(null)  // use translationY
+        whenever(expandableView.shelfTransformationTarget).thenReturn(null) // use translationY
         whenever(expandableView.isInShelf).thenReturn(true)
 
         whenever(ambientState.isOnKeyguard).thenReturn(true)
@@ -182,7 +194,7 @@ class NotificationShelfTest : SysuiTestCase() {
         whenever(expandableView.actualHeight).thenReturn(20)
 
         whenever(expandableView.minHeight).thenReturn(20)
-        whenever(expandableView.shelfTransformationTarget).thenReturn(null)  // use translationY
+        whenever(expandableView.shelfTransformationTarget).thenReturn(null) // use translationY
         whenever(expandableView.isInShelf).thenReturn(true)
 
         whenever(ambientState.isOnKeyguard).thenReturn(true)
@@ -209,7 +221,7 @@ class NotificationShelfTest : SysuiTestCase() {
         whenever(expandableView.actualHeight).thenReturn(25)
 
         whenever(expandableView.minHeight).thenReturn(25)
-        whenever(expandableView.shelfTransformationTarget).thenReturn(null)  // use translationY
+        whenever(expandableView.shelfTransformationTarget).thenReturn(null) // use translationY
         whenever(expandableView.isInShelf).thenReturn(true)
 
         whenever(ambientState.isOnKeyguard).thenReturn(true)
@@ -236,7 +248,7 @@ class NotificationShelfTest : SysuiTestCase() {
         whenever(expandableView.actualHeight).thenReturn(10)
 
         whenever(expandableView.minHeight).thenReturn(10)
-        whenever(expandableView.shelfTransformationTarget).thenReturn(null)  // use translationY
+        whenever(expandableView.shelfTransformationTarget).thenReturn(null) // use translationY
         whenever(expandableView.isInShelf).thenReturn(false)
 
         whenever(ambientState.isExpansionChanging).thenReturn(false)
@@ -251,6 +263,42 @@ class NotificationShelfTest : SysuiTestCase() {
         assertEquals(0f, amountInShelf)
     }
 
+    @Test
+    fun updateState_expansionChanging_shelfTransparent() {
+        updateState_expansionChanging_shelfAlphaUpdated(
+                expansionFraction = 0.25f,
+                expectedAlpha = 0.0f
+        )
+    }
+
+    @Test
+    fun updateState_expansionChangingWhileBouncerInTransit_shelfTransparent() {
+        whenever(ambientState.isBouncerInTransit).thenReturn(true)
+
+        updateState_expansionChanging_shelfAlphaUpdated(
+                expansionFraction = 0.85f,
+                expectedAlpha = 0.0f
+        )
+    }
+
+    @Test
+    fun updateState_expansionChanging_shelfAlphaUpdated() {
+        updateState_expansionChanging_shelfAlphaUpdated(
+                expansionFraction = 0.6f,
+                expectedAlpha = ShadeInterpolation.getContentAlpha(0.6f)
+        )
+    }
+
+    @Test
+    fun updateState_expansionChangingWhileBouncerInTransit_shelfAlphaUpdated() {
+        whenever(ambientState.isBouncerInTransit).thenReturn(true)
+
+        updateState_expansionChanging_shelfAlphaUpdated(
+                expansionFraction = 0.95f,
+                expectedAlpha = aboutToShowBouncerProgress(0.95f)
+        )
+    }
+
     private fun setFractionToShade(fraction: Float) {
         whenever(ambientState.fractionToShade).thenReturn(fraction)
     }
@@ -258,4 +306,19 @@ class NotificationShelfTest : SysuiTestCase() {
     private fun setOnLockscreen(isOnLockscreen: Boolean) {
         whenever(ambientState.isOnKeyguard).thenReturn(isOnLockscreen)
     }
-}
\ No newline at end of file
+
+    private fun updateState_expansionChanging_shelfAlphaUpdated(
+            expansionFraction: Float,
+            expectedAlpha: Float
+    ) {
+        whenever(ambientState.lastVisibleBackgroundChild)
+                .thenReturn(ExpandableNotificationRow(mContext, null))
+        whenever(ambientState.isExpansionChanging).thenReturn(true)
+        whenever(ambientState.expansionFraction).thenReturn(expansionFraction)
+        whenever(hostLayoutController.speedBumpIndex).thenReturn(0)
+
+        shelf.updateState(StackScrollAlgorithmState(), ambientState)
+
+        assertEquals(expectedAlpha, shelf.viewState.alpha)
+    }
+}
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithmTest.kt b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithmTest.kt
index 24eff5ff1162..40aec82f5a85 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithmTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithmTest.kt
@@ -20,7 +20,10 @@ import junit.framework.Assert.assertFalse
 import junit.framework.Assert.assertTrue
 import org.junit.Before
 import org.junit.Test
+import org.mockito.Mockito.any
+import org.mockito.Mockito.eq
 import org.mockito.Mockito.mock
+import org.mockito.Mockito.verify
 import org.mockito.Mockito.`when` as whenever
 
 @SmallTest
@@ -35,7 +38,6 @@ class StackScrollAlgorithmTest : SysuiTestCase() {
     private val emptyShadeView = EmptyShadeView(context, /* attrs= */ null).apply {
         layout(/* l= */ 0, /* t= */ 0, /* r= */ 100, /* b= */ 100)
     }
-
     private val ambientState = AmbientState(
             context,
             dumpManager,
@@ -115,29 +117,54 @@ class StackScrollAlgorithmTest : SysuiTestCase() {
     }
 
     @Test
-    fun resetViewStates_isExpansionChanging_viewBecomesTransparent() {
+    fun resetViewStates_expansionChanging_notificationBecomesTransparent() {
         whenever(mStatusBarKeyguardViewManager.isBouncerInTransit).thenReturn(false)
-        ambientState.isExpansionChanging = true
-        ambientState.expansionFraction = 0.25f
-        stackScrollAlgorithm.initView(context)
+        resetViewStates_expansionChanging_notificationAlphaUpdated(
+                expansionFraction = 0.25f,
+                expectedAlpha = 0.0f
+        )
+    }
 
-        stackScrollAlgorithm.resetViewStates(ambientState, /* speedBumpIndex= */ 0)
+    @Test
+    fun resetViewStates_expansionChangingWhileBouncerInTransit_viewBecomesTransparent() {
+        whenever(mStatusBarKeyguardViewManager.isBouncerInTransit).thenReturn(true)
+        resetViewStates_expansionChanging_notificationAlphaUpdated(
+                expansionFraction = 0.85f,
+                expectedAlpha = 0.0f
+        )
+    }
 
-        val expected = getContentAlpha(0.25f)
-        assertThat(notificationRow.viewState.alpha).isEqualTo(expected)
+    @Test
+    fun resetViewStates_expansionChanging_notificationAlphaUpdated() {
+        whenever(mStatusBarKeyguardViewManager.isBouncerInTransit).thenReturn(false)
+        resetViewStates_expansionChanging_notificationAlphaUpdated(
+                expansionFraction = 0.6f,
+                expectedAlpha = getContentAlpha(0.6f)
+        )
     }
 
     @Test
-    fun resetViewStates_isExpansionChangingWhileBouncerInTransit_viewBecomesTransparent() {
+    fun resetViewStates_expansionChangingWhileBouncerInTransit_notificationAlphaUpdated() {
         whenever(mStatusBarKeyguardViewManager.isBouncerInTransit).thenReturn(true)
+        resetViewStates_expansionChanging_notificationAlphaUpdated(
+                expansionFraction = 0.95f,
+                expectedAlpha = aboutToShowBouncerProgress(0.95f)
+        )
+    }
+
+    @Test
+    fun resetViewStates_expansionChanging_shelfUpdated() {
+        ambientState.shelf = notificationShelf
         ambientState.isExpansionChanging = true
-        ambientState.expansionFraction = 0.25f
+        ambientState.expansionFraction = 0.6f
         stackScrollAlgorithm.initView(context)
 
         stackScrollAlgorithm.resetViewStates(ambientState, /* speedBumpIndex= */ 0)
 
-        val expected = aboutToShowBouncerProgress(0.25f)
-        assertThat(notificationRow.viewState.alpha).isEqualTo(expected)
+        verify(notificationShelf).updateState(
+                /* algorithmState= */any(),
+                /* ambientState= */eq(ambientState)
+        )
     }
 
     @Test
@@ -479,6 +506,19 @@ class StackScrollAlgorithmTest : SysuiTestCase() {
                 /* originalCornerRoundness= */ 1f)
         assertEquals(1f, currentRoundness)
     }
+
+    private fun resetViewStates_expansionChanging_notificationAlphaUpdated(
+            expansionFraction: Float,
+            expectedAlpha: Float
+    ) {
+        ambientState.isExpansionChanging = true
+        ambientState.expansionFraction = expansionFraction
+        stackScrollAlgorithm.initView(context)
+
+        stackScrollAlgorithm.resetViewStates(ambientState, /* speedBumpIndex= */ 0)
+
+        assertThat(notificationRow.viewState.alpha).isEqualTo(expectedAlpha)
+    }
 }
 
 private fun mockExpandableNotificationRow(): ExpandableNotificationRow {