Do not blur when changing brightness

Test: manual
Test: atest NotificationShadeDepthControllerTest
Fixes: 191850924
Change-Id: I32636783cccbae15c5ca4d139e34b2d38ba563ad

packages/SystemUI/src/com/android/systemui/statusbar/NotificationShadeDepthController.kt

@@ -96,6 +96,15 @@ class NotificationShadeDepthController @Inject constructor(
     var globalActionsSpring = DepthAnimation()
     var showingHomeControls: Boolean = false
 
+    @VisibleForTesting
+    var brightnessMirrorSpring = DepthAnimation()
+    var brightnessMirrorVisible: Boolean = false
+        set(value) {
+            field = value
+            brightnessMirrorSpring.animateTo(if (value) blurUtils.blurRadiusOfRatio(1f)
+                else 0)
+        }
+
     var qsPanelExpansion = 0f
         set(value) {
             if (field == value) return
@@ -189,10 +198,13 @@ class NotificationShadeDepthController @Inject constructor(
         if (scrimsVisible || !blurUtils.supportsBlursOnWindows()) {
             blur = 0
         }
+        val zoomOut = blurUtils.ratioOfBlurRadius(blur)
+
+        // Brightness slider removes blur, but doesn't affect zooms
+        blur = (blur * (1f - brightnessMirrorSpring.ratio)).toInt()
 
         val opaque = scrimsVisible && !ignoreShadeBlurUntilHidden
         blurUtils.applyBlur(blurRoot?.viewRootImpl ?: root.viewRootImpl, blur, opaque)
-        val zoomOut = blurUtils.ratioOfBlurRadius(blur)
         try {
             if (root.isAttachedToWindow && root.windowToken != null) {
                 wallpaperManager.setWallpaperZoomOut(root.windowToken, zoomOut)
@@ -260,6 +272,7 @@ class NotificationShadeDepthController @Inject constructor(
                 shadeSpring.finishIfRunning()
                 shadeAnimation.finishIfRunning()
                 globalActionsSpring.finishIfRunning()
+                brightnessMirrorSpring.finishIfRunning()
             }
         }
 
@@ -425,6 +438,7 @@ class NotificationShadeDepthController @Inject constructor(
             it.println("shadeRadius: ${shadeSpring.radius}")
             it.println("shadeAnimation: ${shadeAnimation.radius}")
             it.println("globalActionsRadius: ${globalActionsSpring.radius}")
+            it.println("brightnessMirrorRadius: ${brightnessMirrorSpring.radius}")
             it.println("wakeAndUnlockBlur: $wakeAndUnlockBlurRadius")
             it.println("ignoreShadeBlurUntilHidden: $ignoreShadeBlurUntilHidden")
         }

packages/SystemUI/src/com/android/systemui/statusbar/policy/BrightnessMirrorController.java

@@ -74,11 +74,13 @@ public class BrightnessMirrorController
         mBrightnessMirror.setVisibility(View.VISIBLE);
         mVisibilityCallback.accept(true);
         mNotificationPanel.setPanelAlpha(0, true /* animate */);
+        mDepthController.setBrightnessMirrorVisible(true);
     }
 
     public void hideMirror() {
         mVisibilityCallback.accept(false);
         mNotificationPanel.setPanelAlpha(255, true /* animate */);
+        mDepthController.setBrightnessMirrorVisible(false);
     }
 
     /**

packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationShadeDepthControllerTest.kt

@@ -72,6 +72,7 @@ class NotificationShadeDepthControllerTest : SysuiTestCase() {
     @Mock private lateinit var shadeSpring: NotificationShadeDepthController.DepthAnimation
     @Mock private lateinit var shadeAnimation: NotificationShadeDepthController.DepthAnimation
     @Mock private lateinit var globalActionsSpring: NotificationShadeDepthController.DepthAnimation
+    @Mock private lateinit var brightnessSpring: NotificationShadeDepthController.DepthAnimation
     @Mock private lateinit var listener: NotificationShadeDepthController.DepthListener
     @Mock private lateinit var dozeParameters: DozeParameters
     @Captor private lateinit var scrimVisibilityCaptor: ArgumentCaptor<Consumer<Int>>
@@ -91,6 +92,9 @@ class NotificationShadeDepthControllerTest : SysuiTestCase() {
         `when`(blurUtils.blurRadiusOfRatio(anyFloat())).then { answer ->
             (answer.arguments[0] as Float * maxBlur).toInt()
         }
+        `when`(blurUtils.ratioOfBlurRadius(anyInt())).then { answer ->
+            answer.arguments[0] as Int / maxBlur.toFloat()
+        }
         `when`(blurUtils.supportsBlursOnWindows()).thenReturn(true)
         `when`(blurUtils.maxBlurRadius).thenReturn(maxBlur)
         `when`(blurUtils.maxBlurRadius).thenReturn(maxBlur)
@@ -101,6 +105,7 @@ class NotificationShadeDepthControllerTest : SysuiTestCase() {
                 notificationShadeWindowController, dozeParameters, dumpManager)
         notificationShadeDepthController.shadeSpring = shadeSpring
         notificationShadeDepthController.shadeAnimation = shadeAnimation
+        notificationShadeDepthController.brightnessMirrorSpring = brightnessSpring
         notificationShadeDepthController.globalActionsSpring = globalActionsSpring
         notificationShadeDepthController.root = root
 
@@ -276,6 +281,32 @@ class NotificationShadeDepthControllerTest : SysuiTestCase() {
                 eq(notificationShadeDepthController.updateBlurCallback))
     }
 
+    @Test
+    fun brightnessMirrorVisible_whenVisible() {
+        notificationShadeDepthController.brightnessMirrorVisible = true
+        verify(brightnessSpring).animateTo(eq(maxBlur), any())
+    }
+
+    @Test
+    fun brightnessMirrorVisible_whenHidden() {
+        notificationShadeDepthController.brightnessMirrorVisible = false
+        verify(brightnessSpring).animateTo(eq(0), any())
+    }
+
+    @Test
+    fun brightnessMirror_hidesShadeBlur() {
+        // Brightness mirror is fully visible
+        `when`(brightnessSpring.ratio).thenReturn(1f)
+        // And shade is blurred
+        `when`(shadeSpring.radius).thenReturn(maxBlur)
+        `when`(shadeAnimation.radius).thenReturn(maxBlur)
+
+        notificationShadeDepthController.updateBlurCallback.doFrame(0)
+        verify(notificationShadeWindowController).setBackgroundBlurRadius(eq(0))
+        verify(wallpaperManager).setWallpaperZoomOut(any(), eq(1f))
+        verify(blurUtils).applyBlur(eq(viewRootImpl), eq(0), eq(false))
+    }
+
     @Test
     fun ignoreShadeBlurUntilHidden_whennNull_ignoresIfShadeHasNoBlur() {
         `when`(shadeSpring.radius).thenReturn(0)