Merge "Fix LightBarController's dark/light logic for the Navigation Bar" into udc-dev am: 4542c10c12

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22853898

Change-Id: I22b149e33ba7fa52cc8869c87e4809c33fc53e50
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialogLite.java

@@ -128,6 +128,7 @@ import com.android.systemui.settings.UserTracker;
 import com.android.systemui.statusbar.NotificationShadeWindowController;
 import com.android.systemui.statusbar.VibratorHelper;
 import com.android.systemui.statusbar.phone.CentralSurfaces;
+import com.android.systemui.statusbar.phone.LightBarController;
 import com.android.systemui.statusbar.phone.SystemUIDialog;
 import com.android.systemui.statusbar.policy.ConfigurationController;
 import com.android.systemui.statusbar.policy.KeyguardStateController;
@@ -240,6 +241,7 @@ public class GlobalActionsDialogLite implements DialogInterface.OnDismissListene
     private final ScreenshotHelper mScreenshotHelper;
     private final SysuiColorExtractor mSysuiColorExtractor;
     private final IStatusBarService mStatusBarService;
+    protected final LightBarController mLightBarController;
     protected final NotificationShadeWindowController mNotificationShadeWindowController;
     private final IWindowManager mIWindowManager;
     private final Executor mBackgroundExecutor;
@@ -349,6 +351,7 @@ public class GlobalActionsDialogLite implements DialogInterface.OnDismissListene
             MetricsLogger metricsLogger,
             SysuiColorExtractor colorExtractor,
             IStatusBarService statusBarService,
+            LightBarController lightBarController,
             NotificationShadeWindowController notificationShadeWindowController,
             IWindowManager iWindowManager,
             @Background Executor backgroundExecutor,
@@ -381,6 +384,7 @@ public class GlobalActionsDialogLite implements DialogInterface.OnDismissListene
         mUiEventLogger = uiEventLogger;
         mSysuiColorExtractor = colorExtractor;
         mStatusBarService = statusBarService;
+        mLightBarController = lightBarController;
         mNotificationShadeWindowController = notificationShadeWindowController;
         mIWindowManager = iWindowManager;
         mBackgroundExecutor = backgroundExecutor;
@@ -694,6 +698,7 @@ public class GlobalActionsDialogLite implements DialogInterface.OnDismissListene
         ActionsDialogLite dialog = new ActionsDialogLite(mContext,
                 com.android.systemui.R.style.Theme_SystemUI_Dialog_GlobalActionsLite,
                 mAdapter, mOverflowAdapter, mSysuiColorExtractor, mStatusBarService,
+                mLightBarController,
                 mNotificationShadeWindowController, this::onRefresh, mKeyguardShowing,
                 mPowerAdapter, mUiEventLogger, mCentralSurfacesOptional, mKeyguardUpdateMonitor,
                 mLockPatternUtils);
@@ -2192,6 +2197,7 @@ public class GlobalActionsDialogLite implements DialogInterface.OnDismissListene
         protected final SysuiColorExtractor mColorExtractor;
         private boolean mKeyguardShowing;
         protected float mScrimAlpha;
+        protected final LightBarController mLightBarController;
         protected final NotificationShadeWindowController mNotificationShadeWindowController;
         private ListPopupWindow mOverflowPopup;
         private Dialog mPowerOptionsDialog;
@@ -2267,6 +2273,7 @@ public class GlobalActionsDialogLite implements DialogInterface.OnDismissListene
         ActionsDialogLite(Context context, int themeRes, MyAdapter adapter,
                 MyOverflowAdapter overflowAdapter,
                 SysuiColorExtractor sysuiColorExtractor, IStatusBarService statusBarService,
+                LightBarController lightBarController,
                 NotificationShadeWindowController notificationShadeWindowController,
                 Runnable onRefreshCallback, boolean keyguardShowing,
                 MyPowerOptionsAdapter powerAdapter, UiEventLogger uiEventLogger,
@@ -2282,6 +2289,7 @@ public class GlobalActionsDialogLite implements DialogInterface.OnDismissListene
             mPowerOptionsAdapter = powerAdapter;
             mColorExtractor = sysuiColorExtractor;
             mStatusBarService = statusBarService;
+            mLightBarController = lightBarController;
             mNotificationShadeWindowController = notificationShadeWindowController;
             mOnRefreshCallback = onRefreshCallback;
             mKeyguardShowing = keyguardShowing;
@@ -2474,6 +2482,7 @@ public class GlobalActionsDialogLite implements DialogInterface.OnDismissListene
         @Override
         protected void start() {
             mGlobalActionsLayout.updateList();
+            mLightBarController.setGlobalActionsVisible(true);
 
             if (mBackgroundDrawable instanceof ScrimDrawable) {
                 mColorExtractor.addOnColorsChangedListener(this);
@@ -2504,6 +2513,7 @@ public class GlobalActionsDialogLite implements DialogInterface.OnDismissListene
 
         @Override
         protected void stop() {
+            mLightBarController.setGlobalActionsVisible(false);
             mColorExtractor.removeOnColorsChangedListener(this);
         }
 

packages/SystemUI/src/com/android/systemui/shade/QuickSettingsController.java

@@ -85,6 +85,7 @@ import com.android.systemui.statusbar.notification.stack.NotificationStackScroll
 import com.android.systemui.statusbar.notification.stack.StackStateAnimator;
 import com.android.systemui.statusbar.phone.KeyguardBypassController;
 import com.android.systemui.statusbar.phone.KeyguardStatusBarView;
+import com.android.systemui.statusbar.phone.LightBarController;
 import com.android.systemui.statusbar.phone.LockscreenGestureLogger;
 import com.android.systemui.statusbar.phone.ScrimController;
 import com.android.systemui.statusbar.phone.StatusBarKeyguardViewManager;
@@ -117,6 +118,7 @@ public class QuickSettingsController {
     private final PulseExpansionHandler mPulseExpansionHandler;
     private final ShadeExpansionStateManager mShadeExpansionStateManager;
     private final StatusBarKeyguardViewManager mStatusBarKeyguardViewManager;
+    private final LightBarController mLightBarController;
     private final NotificationStackScrollLayoutController mNotificationStackScrollLayoutController;
     private final LockscreenShadeTransitionController mLockscreenShadeTransitionController;
     private final NotificationShadeDepthController mDepthController;
@@ -304,6 +306,7 @@ public class QuickSettingsController {
             NotificationRemoteInputManager remoteInputManager,
             ShadeExpansionStateManager shadeExpansionStateManager,
             StatusBarKeyguardViewManager statusBarKeyguardViewManager,
+            LightBarController lightBarController,
             NotificationStackScrollLayoutController notificationStackScrollLayoutController,
             LockscreenShadeTransitionController lockscreenShadeTransitionController,
             NotificationShadeDepthController notificationShadeDepthController,
@@ -346,6 +349,7 @@ public class QuickSettingsController {
         mRemoteInputManager = remoteInputManager;
         mShadeExpansionStateManager = shadeExpansionStateManager;
         mStatusBarKeyguardViewManager = statusBarKeyguardViewManager;
+        mLightBarController = lightBarController;
         mNotificationStackScrollLayoutController = notificationStackScrollLayoutController;
         mLockscreenShadeTransitionController = lockscreenShadeTransitionController;
         mDepthController = notificationShadeDepthController;
@@ -1018,6 +1022,9 @@ public class QuickSettingsController {
         mShadeHeaderController.setShadeExpandedFraction(shadeExpandedFraction);
         mShadeHeaderController.setQsExpandedFraction(qsExpansionFraction);
         mShadeHeaderController.setQsVisible(mVisible);
+
+        // Update the light bar
+        mLightBarController.setQsExpanded(mFullyExpanded);
     }
 
     float getLockscreenShadeDragProgress() {

packages/SystemUI/src/com/android/systemui/statusbar/phone/LightBarController.java

@@ -25,6 +25,7 @@ import static com.android.systemui.statusbar.phone.BarTransitions.MODE_TRANSPARE
 import android.annotation.ColorInt;
 import android.content.Context;
 import android.graphics.Rect;
+import android.util.Log;
 import android.view.InsetsFlags;
 import android.view.ViewDebug;
 import android.view.WindowInsetsController.Appearance;
@@ -35,13 +36,17 @@ import com.android.systemui.Dumpable;
 import com.android.systemui.R;
 import com.android.systemui.dagger.SysUISingleton;
 import com.android.systemui.dump.DumpManager;
+import com.android.systemui.flags.FeatureFlags;
+import com.android.systemui.flags.Flags;
 import com.android.systemui.navigationbar.NavigationModeController;
 import com.android.systemui.plugins.DarkIconDispatcher;
 import com.android.systemui.settings.DisplayTracker;
 import com.android.systemui.statusbar.policy.BatteryController;
+import com.android.systemui.util.Compile;
 
 import java.io.PrintWriter;
 import java.util.ArrayList;
+import java.util.Date;
 
 import javax.inject.Inject;
 
@@ -51,10 +56,14 @@ import javax.inject.Inject;
 @SysUISingleton
 public class LightBarController implements BatteryController.BatteryStateChangeCallback, Dumpable {
 
+    private static final String TAG = "LightBarController";
+    private static final boolean DEBUG = Compile.IS_DEBUG && Log.isLoggable(TAG, Log.DEBUG);
+
     private static final float NAV_BAR_INVERSION_SCRIM_ALPHA_THRESHOLD = 0.1f;
 
     private final SysuiDarkIconDispatcher mStatusBarIconController;
     private final BatteryController mBatteryController;
+    private final boolean mUseNewLightBarLogic;
     private BiometricUnlockController mBiometricUnlockController;
 
     private LightBarTransitionsController mNavigationBarController;
@@ -67,13 +76,17 @@ public class LightBarController implements BatteryController.BatteryStateChangeC
     private final int mLightIconColor;
 
     /**
-     * Whether the navigation bar should be light factoring in already how much alpha the scrim has
+     * Whether the navigation bar should be light factoring in already how much alpha the scrim has.
+     * "Light" refers to the background color of the navigation bar, so when this is true,
+     * it's referring to a state where the navigation bar icons are tinted dark.
      */
     private boolean mNavigationLight;
 
     /**
-     * Whether the flags indicate that a light status bar is requested. This doesn't factor in the
-     * scrim alpha yet.
+     * Whether the flags indicate that a light navigation bar is requested.
+     * "Light" refers to the background color of the navigation bar, so when this is true,
+     * it's referring to a state where the navigation bar icons would be tinted dark.
+     * This doesn't factor in the scrim alpha yet.
      */
     private boolean mHasLightNavigationBar;
 
@@ -82,22 +95,34 @@ public class LightBarController implements BatteryController.BatteryStateChangeC
      * {@link #mNavigationLight} {@code false}.
      */
     private boolean mForceDarkForScrim;
+    /**
+     * {@code true} if {@link #mHasLightNavigationBar} should be ignored and forcefully make
+     * {@link #mNavigationLight} {@code true}.
+     */
+    private boolean mForceLightForScrim;
 
     private boolean mQsCustomizing;
+    private boolean mQsExpanded;
+    private boolean mGlobalActionsVisible;
 
     private boolean mDirectReplying;
     private boolean mNavbarColorManagedByIme;
 
     private boolean mIsCustomizingForBackNav;
 
+    private String mLastSetScrimStateLog;
+    private String mLastNavigationBarAppearanceChangedLog;
+
     @Inject
     public LightBarController(
             Context ctx,
             DarkIconDispatcher darkIconDispatcher,
             BatteryController batteryController,
             NavigationModeController navModeController,
+            FeatureFlags featureFlags,
             DumpManager dumpManager,
             DisplayTracker displayTracker) {
+        mUseNewLightBarLogic = featureFlags.isEnabled(Flags.NEW_LIGHT_BAR_LOGIC);
         mDarkIconColor = ctx.getColor(R.color.dark_mode_icon_color_single_tone);
         mLightIconColor = ctx.getColor(R.color.light_mode_icon_color_single_tone);
         mStatusBarIconController = (SysuiDarkIconDispatcher) darkIconDispatcher;
@@ -159,9 +184,42 @@ public class LightBarController implements BatteryController.BatteryStateChangeC
             final boolean last = mNavigationLight;
             mHasLightNavigationBar = isLight(appearance, navigationBarMode,
                     APPEARANCE_LIGHT_NAVIGATION_BARS);
-            mNavigationLight = mHasLightNavigationBar
-                    && (mDirectReplying && mNavbarColorManagedByIme || !mForceDarkForScrim)
-                    && !mQsCustomizing;
+            if (mUseNewLightBarLogic) {
+                final boolean ignoreScrimForce = mDirectReplying && mNavbarColorManagedByIme;
+                final boolean darkForScrim = mForceDarkForScrim && !ignoreScrimForce;
+                final boolean lightForScrim = mForceLightForScrim && !ignoreScrimForce;
+                final boolean darkForQs = mQsCustomizing || mQsExpanded || mGlobalActionsVisible;
+                mNavigationLight =
+                        ((mHasLightNavigationBar && !darkForScrim) || lightForScrim) && !darkForQs;
+                mLastNavigationBarAppearanceChangedLog = "onNavigationBarAppearanceChanged()"
+                        + " appearance=" + appearance
+                        + " nbModeChanged=" + nbModeChanged
+                        + " navigationBarMode=" + navigationBarMode
+                        + " navbarColorManagedByIme=" + navbarColorManagedByIme
+                        + " mHasLightNavigationBar=" + mHasLightNavigationBar
+                        + " ignoreScrimForce=" + ignoreScrimForce
+                        + " darkForScrim=" + darkForScrim
+                        + " lightForScrim=" + lightForScrim
+                        + " darkForQs=" + darkForQs
+                        + " mNavigationLight=" + mNavigationLight
+                        + " last=" + last
+                        + " timestamp=" + new Date();
+                if (DEBUG) Log.d(TAG, mLastNavigationBarAppearanceChangedLog);
+            } else {
+                mNavigationLight = mHasLightNavigationBar
+                        && (mDirectReplying && mNavbarColorManagedByIme || !mForceDarkForScrim)
+                        && !mQsCustomizing;
+                mLastNavigationBarAppearanceChangedLog = "onNavigationBarAppearanceChanged()"
+                        + " appearance=" + appearance
+                        + " nbModeChanged=" + nbModeChanged
+                        + " navigationBarMode=" + navigationBarMode
+                        + " navbarColorManagedByIme=" + navbarColorManagedByIme
+                        + " mHasLightNavigationBar=" + mHasLightNavigationBar
+                        + " mNavigationLight=" + mNavigationLight
+                        + " last=" + last
+                        + " timestamp=" + new Date();
+                if (DEBUG) Log.d(TAG, mLastNavigationBarAppearanceChangedLog);
+            }
             if (mNavigationLight != last) {
                 updateNavigation();
             }
@@ -188,6 +246,20 @@ public class LightBarController implements BatteryController.BatteryStateChangeC
         reevaluate();
     }
 
+    /** Set if Quick Settings is fully expanded, which affects notification scrim visibility */
+    public void setQsExpanded(boolean expanded) {
+        if (mQsExpanded == expanded) return;
+        mQsExpanded = expanded;
+        reevaluate();
+    }
+
+    /** Set if Global Actions dialog is visible, which requires dark mode (light buttons) */
+    public void setGlobalActionsVisible(boolean visible) {
+        if (mGlobalActionsVisible == visible) return;
+        mGlobalActionsVisible = visible;
+        reevaluate();
+    }
+
     /**
      * Controls the light status bar temporarily for back navigation.
      * @param appearance the custmoized appearance.
@@ -225,16 +297,52 @@ public class LightBarController implements BatteryController.BatteryStateChangeC
 
     public void setScrimState(ScrimState scrimState, float scrimBehindAlpha,
             GradientColors scrimInFrontColor) {
-        boolean forceDarkForScrimLast = mForceDarkForScrim;
-        // For BOUNCER/BOUNCER_SCRIMMED cases, we assume that alpha is always below threshold.
-        // This enables IMEs to control the navigation bar color.
-        // For other cases, scrim should be able to veto the light navigation bar.
-        mForceDarkForScrim = scrimState != ScrimState.BOUNCER
-                && scrimState != ScrimState.BOUNCER_SCRIMMED
-                && scrimBehindAlpha >= NAV_BAR_INVERSION_SCRIM_ALPHA_THRESHOLD
-                && !scrimInFrontColor.supportsDarkText();
-        if (mHasLightNavigationBar && (mForceDarkForScrim != forceDarkForScrimLast)) {
-            reevaluate();
+        if (mUseNewLightBarLogic) {
+            boolean forceDarkForScrimLast = mForceDarkForScrim;
+            boolean forceLightForScrimLast = mForceLightForScrim;
+            final boolean forceForScrim =
+                    scrimBehindAlpha >= NAV_BAR_INVERSION_SCRIM_ALPHA_THRESHOLD;
+            final boolean scrimColorIsLight = scrimInFrontColor.supportsDarkText();
+
+            mForceDarkForScrim = forceForScrim && !scrimColorIsLight;
+            mForceLightForScrim = forceForScrim && scrimColorIsLight;
+            if (mHasLightNavigationBar) {
+                if (mForceDarkForScrim != forceDarkForScrimLast) reevaluate();
+            } else {
+                if (mForceLightForScrim != forceLightForScrimLast) reevaluate();
+            }
+            mLastSetScrimStateLog = "setScrimState()"
+                    + " scrimState=" + scrimState
+                    + " scrimBehindAlpha=" + scrimBehindAlpha
+                    + " scrimInFrontColor=" + scrimInFrontColor
+                    + " forceForScrim=" + forceForScrim
+                    + " scrimColorIsLight=" + scrimColorIsLight
+                    + " mHasLightNavigationBar=" + mHasLightNavigationBar
+                    + " mForceDarkForScrim=" + mForceDarkForScrim
+                    + " mForceLightForScrim=" + mForceLightForScrim
+                    + " timestamp=" + new Date();
+            if (DEBUG) Log.d(TAG, mLastSetScrimStateLog);
+        } else {
+            boolean forceDarkForScrimLast = mForceDarkForScrim;
+            // For BOUNCER/BOUNCER_SCRIMMED cases, we assume that alpha is always below threshold.
+            // This enables IMEs to control the navigation bar color.
+            // For other cases, scrim should be able to veto the light navigation bar.
+            // NOTE: this was also wrong for S and has been removed in the new logic.
+            mForceDarkForScrim = scrimState != ScrimState.BOUNCER
+                    && scrimState != ScrimState.BOUNCER_SCRIMMED
+                    && scrimBehindAlpha >= NAV_BAR_INVERSION_SCRIM_ALPHA_THRESHOLD
+                    && !scrimInFrontColor.supportsDarkText();
+            if (mHasLightNavigationBar && (mForceDarkForScrim != forceDarkForScrimLast)) {
+                reevaluate();
+            }
+            mLastSetScrimStateLog = "setScrimState()"
+                    + " scrimState=" + scrimState
+                    + " scrimBehindAlpha=" + scrimBehindAlpha
+                    + " scrimInFrontColor=" + scrimInFrontColor
+                    + " mHasLightNavigationBar=" + mHasLightNavigationBar
+                    + " mForceDarkForScrim=" + mForceDarkForScrim
+                    + " timestamp=" + new Date();
+            if (DEBUG) Log.d(TAG, mLastSetScrimStateLog);
         }
     }
 
@@ -309,16 +417,24 @@ public class LightBarController implements BatteryController.BatteryStateChangeC
             pw.print(mAppearanceRegions[i].toString()); pw.print(" isLight="); pw.println(isLight);
         }
 
-        pw.print(" mNavigationLight="); pw.print(mNavigationLight);
+        pw.print(" mNavigationLight="); pw.println(mNavigationLight);
         pw.print(" mHasLightNavigationBar="); pw.println(mHasLightNavigationBar);
-
+        pw.println();
         pw.print(" mStatusBarMode="); pw.print(mStatusBarMode);
         pw.print(" mNavigationBarMode="); pw.println(mNavigationBarMode);
-
-        pw.print(" mForceDarkForScrim="); pw.print(mForceDarkForScrim);
-        pw.print(" mQsCustomizing="); pw.print(mQsCustomizing);
+        pw.println();
+        pw.print(" mForceDarkForScrim="); pw.println(mForceDarkForScrim);
+        pw.print(" mForceLightForScrim="); pw.println(mForceLightForScrim);
+        pw.println();
+        pw.print(" mQsCustomizing="); pw.println(mQsCustomizing);
+        pw.print(" mQsExpanded="); pw.println(mQsExpanded);
+        pw.print(" mGlobalActionsVisible="); pw.println(mGlobalActionsVisible);
         pw.print(" mDirectReplying="); pw.println(mDirectReplying);
         pw.print(" mNavbarColorManagedByIme="); pw.println(mNavbarColorManagedByIme);
+        pw.println();
+        pw.println(" Recent Calculation Logs:");
+        pw.print("   "); pw.println(mLastSetScrimStateLog);
+        pw.print("   "); pw.println(mLastNavigationBarAppearanceChangedLog);
 
         pw.println();
 
@@ -344,6 +460,7 @@ public class LightBarController implements BatteryController.BatteryStateChangeC
         private final DarkIconDispatcher mDarkIconDispatcher;
         private final BatteryController mBatteryController;
         private final NavigationModeController mNavModeController;
+        private final FeatureFlags mFeatureFlags;
         private final DumpManager mDumpManager;
         private final DisplayTracker mDisplayTracker;
 
@@ -352,12 +469,14 @@ public class LightBarController implements BatteryController.BatteryStateChangeC
                 DarkIconDispatcher darkIconDispatcher,
                 BatteryController batteryController,
                 NavigationModeController navModeController,
+                FeatureFlags featureFlags,
                 DumpManager dumpManager,
                 DisplayTracker displayTracker) {
 
             mDarkIconDispatcher = darkIconDispatcher;
             mBatteryController = batteryController;
             mNavModeController = navModeController;
+            mFeatureFlags = featureFlags;
             mDumpManager = dumpManager;
             mDisplayTracker = displayTracker;
         }
@@ -365,7 +484,7 @@ public class LightBarController implements BatteryController.BatteryStateChangeC
         /** Create an {@link LightBarController} */
         public LightBarController create(Context context) {
             return new LightBarController(context, mDarkIconDispatcher, mBatteryController,
-                    mNavModeController, mDumpManager, mDisplayTracker);
+                    mNavModeController, mFeatureFlags, mDumpManager, mDisplayTracker);
         }
     }
 }

packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java

@@ -42,6 +42,7 @@ import androidx.annotation.Nullable;
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.colorextraction.ColorExtractor.GradientColors;
 import com.android.internal.graphics.ColorUtils;
+import com.android.internal.util.ContrastColorUtil;
 import com.android.internal.util.function.TriConsumer;
 import com.android.keyguard.BouncerPanelExpansionCalculator;
 import com.android.keyguard.KeyguardUpdateMonitor;
@@ -249,6 +250,7 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener, Dump
     private final TriConsumer<ScrimState, Float, GradientColors> mScrimStateListener;
     private final LargeScreenShadeInterpolator mLargeScreenShadeInterpolator;
     private final FeatureFlags mFeatureFlags;
+    private final boolean mUseNewLightBarLogic;
     private Consumer<Integer> mScrimVisibleListener;
     private boolean mBlankScreen;
     private boolean mScreenBlankingCallbackCalled;
@@ -306,6 +308,7 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener, Dump
         mScrimStateListener = lightBarController::setScrimState;
         mLargeScreenShadeInterpolator = largeScreenShadeInterpolator;
         mFeatureFlags = featureFlags;
+        mUseNewLightBarLogic = featureFlags.isEnabled(Flags.NEW_LIGHT_BAR_LOGIC);
         mDefaultScrimAlpha = BUSY_SCRIM_ALPHA;
 
         mKeyguardStateController = keyguardStateController;
@@ -1159,7 +1162,13 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener, Dump
         if (mClipsQsScrim && mQsBottomVisible) {
             alpha = mNotificationsAlpha;
         }
-        mScrimStateListener.accept(mState, alpha, mScrimInFront.getColors());
+        if (mUseNewLightBarLogic) {
+            mScrimStateListener.accept(mState, alpha, mColors);
+        } else {
+            // NOTE: This wasn't wrong, but it implied that each scrim might have different colors,
+            //  when in fact they all share the same GradientColors instance, which we own.
+            mScrimStateListener.accept(mState, alpha, mScrimInFront.getColors());
+        }
     }
 
     private void dispatchScrimsVisible() {
@@ -1487,8 +1496,15 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener, Dump
         int accent = Utils.getColorAccent(mScrimBehind.getContext()).getDefaultColor();
         mColors.setMainColor(background);
         mColors.setSecondaryColor(accent);
-        mColors.setSupportsDarkText(
-                ColorUtils.calculateContrast(mColors.getMainColor(), Color.WHITE) > 4.5);
+        if (mUseNewLightBarLogic) {
+            final boolean isBackgroundLight = !ContrastColorUtil.isColorDark(background);
+            mColors.setSupportsDarkText(isBackgroundLight);
+        } else {
+            // NOTE: This was totally backward, but LightBarController was flipping it back.
+            // There may be other consumers of this which would struggle though
+            mColors.setSupportsDarkText(
+                    ColorUtils.calculateContrast(mColors.getMainColor(), Color.WHITE) > 4.5);
+        }
         mNeedsDrawableColorUpdate = true;
     }
 

packages/SystemUI/tests/src/com/android/systemui/globalactions/GlobalActionsDialogLiteTest.java

@@ -70,6 +70,7 @@ import com.android.systemui.settings.UserTracker;
 import com.android.systemui.statusbar.NotificationShadeWindowController;
 import com.android.systemui.statusbar.VibratorHelper;
 import com.android.systemui.statusbar.phone.CentralSurfaces;
+import com.android.systemui.statusbar.phone.LightBarController;
 import com.android.systemui.statusbar.policy.ConfigurationController;
 import com.android.systemui.statusbar.policy.KeyguardStateController;
 import com.android.systemui.telephony.TelephonyListenerManager;
@@ -115,6 +116,7 @@ public class GlobalActionsDialogLiteTest extends SysuiTestCase {
     @Mock private MetricsLogger mMetricsLogger;
     @Mock private SysuiColorExtractor mColorExtractor;
     @Mock private IStatusBarService mStatusBarService;
+    @Mock private LightBarController mLightBarController;
     @Mock private NotificationShadeWindowController mNotificationShadeWindowController;
     @Mock private IWindowManager mWindowManager;
     @Mock private Executor mBackgroundExecutor;
@@ -166,6 +168,7 @@ public class GlobalActionsDialogLiteTest extends SysuiTestCase {
                 mMetricsLogger,
                 mColorExtractor,
                 mStatusBarService,
+                mLightBarController,
                 mNotificationShadeWindowController,
                 mWindowManager,
                 mBackgroundExecutor,

packages/SystemUI/tests/src/com/android/systemui/shade/NotificationPanelViewControllerBaseTest.java

@@ -151,6 +151,7 @@ import com.android.systemui.statusbar.phone.KeyguardBottomAreaViewController;
 import com.android.systemui.statusbar.phone.KeyguardBypassController;
 import com.android.systemui.statusbar.phone.KeyguardStatusBarView;
 import com.android.systemui.statusbar.phone.KeyguardStatusBarViewController;
+import com.android.systemui.statusbar.phone.LightBarController;
 import com.android.systemui.statusbar.phone.LockscreenGestureLogger;
 import com.android.systemui.statusbar.phone.ScreenOffAnimationController;
 import com.android.systemui.statusbar.phone.ScrimController;
@@ -240,6 +241,7 @@ public class NotificationPanelViewControllerBaseTest extends SysuiTestCase {
     @Mock protected KeyguardStatusBarViewComponent mKeyguardStatusBarViewComponent;
     @Mock protected KeyguardClockSwitchController mKeyguardClockSwitchController;
     @Mock protected KeyguardStatusBarViewController mKeyguardStatusBarViewController;
+    @Mock protected LightBarController mLightBarController;
     @Mock protected NotificationStackScrollLayoutController
             mNotificationStackScrollLayoutController;
     @Mock protected NotificationShadeDepthController mNotificationShadeDepthController;
@@ -655,6 +657,7 @@ public class NotificationPanelViewControllerBaseTest extends SysuiTestCase {
                 mNotificationRemoteInputManager,
                 mShadeExpansionStateManager,
                 mStatusBarKeyguardViewManager,
+                mLightBarController,
                 mNotificationStackScrollLayoutController,
                 mLockscreenShadeTransitionController,
                 mNotificationShadeDepthController,

packages/SystemUI/tests/src/com/android/systemui/shade/QuickSettingsControllerTest.java

@@ -83,6 +83,7 @@ import com.android.systemui.statusbar.notification.stack.NotificationStackScroll
 import com.android.systemui.statusbar.phone.KeyguardBottomAreaView;
 import com.android.systemui.statusbar.phone.KeyguardBypassController;
 import com.android.systemui.statusbar.phone.KeyguardStatusBarView;
+import com.android.systemui.statusbar.phone.LightBarController;
 import com.android.systemui.statusbar.phone.LockscreenGestureLogger;
 import com.android.systemui.statusbar.phone.ScrimController;
 import com.android.systemui.statusbar.phone.StatusBarKeyguardViewManager;
@@ -133,6 +134,7 @@ public class QuickSettingsControllerTest extends SysuiTestCase {
     @Mock private PulseExpansionHandler mPulseExpansionHandler;
     @Mock private NotificationRemoteInputManager mNotificationRemoteInputManager;
     @Mock private StatusBarKeyguardViewManager mStatusBarKeyguardViewManager;
+    @Mock private LightBarController mLightBarController;
     @Mock private NotificationStackScrollLayoutController mNotificationStackScrollLayoutController;
     @Mock private LockscreenShadeTransitionController mLockscreenShadeTransitionController;
     @Mock private NotificationShadeDepthController mNotificationShadeDepthController;
@@ -223,6 +225,7 @@ public class QuickSettingsControllerTest extends SysuiTestCase {
                 mNotificationRemoteInputManager,
                 mShadeExpansionStateManager,
                 mStatusBarKeyguardViewManager,
+                mLightBarController,
                 mNotificationStackScrollLayoutController,
                 mLockscreenShadeTransitionController,
                 mNotificationShadeDepthController,

packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/LightBarControllerTest.java

@@ -22,21 +22,31 @@ import static com.android.systemui.statusbar.phone.BarTransitions.MODE_TRANSPARE
 
 import static junit.framework.Assert.assertTrue;
 
+import static org.junit.Assume.assumeTrue;
 import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.clearInvocations;
 import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import android.graphics.Color;
 import android.graphics.Rect;
 import android.testing.AndroidTestingRunner;
 import android.testing.TestableLooper;
 
+import androidx.annotation.ColorInt;
 import androidx.test.filters.SmallTest;
 
+import com.android.internal.colorextraction.ColorExtractor.GradientColors;
+import com.android.internal.util.ContrastColorUtil;
 import com.android.internal.view.AppearanceRegion;
 import com.android.systemui.SysuiTestCase;
 import com.android.systemui.dump.DumpManager;
+import com.android.systemui.flags.FakeFeatureFlags;
+import com.android.systemui.flags.Flags;
 import com.android.systemui.navigationbar.NavigationModeController;
 import com.android.systemui.settings.FakeDisplayTracker;
 import com.android.systemui.statusbar.policy.BatteryController;
@@ -53,13 +63,25 @@ import java.util.ArrayList;
 @TestableLooper.RunWithLooper
 public class LightBarControllerTest extends SysuiTestCase {
 
+    private static final GradientColors COLORS_LIGHT = makeColors(Color.WHITE);
+    private static final GradientColors COLORS_DARK = makeColors(Color.BLACK);
+    private final FakeFeatureFlags mFeatureFlags = new FakeFeatureFlags();
     private LightBarTransitionsController mLightBarTransitionsController;
+    private LightBarTransitionsController mNavBarController;
     private SysuiDarkIconDispatcher mStatusBarIconController;
     private LightBarController mLightBarController;
 
+    /** Allow testing with NEW_LIGHT_BAR_LOGIC flag in different states */
+    protected boolean testNewLightBarLogic() {
+        return false;
+    }
+
     @Before
     public void setup() {
+        mFeatureFlags.set(Flags.NEW_LIGHT_BAR_LOGIC, testNewLightBarLogic());
         mStatusBarIconController = mock(SysuiDarkIconDispatcher.class);
+        mNavBarController = mock(LightBarTransitionsController.class);
+        when(mNavBarController.supportsIconTintForNavMode(anyInt())).thenReturn(true);
         mLightBarTransitionsController = mock(LightBarTransitionsController.class);
         when(mStatusBarIconController.getTransitionsController()).thenReturn(
                 mLightBarTransitionsController);
@@ -68,10 +90,19 @@ public class LightBarControllerTest extends SysuiTestCase {
                 mStatusBarIconController,
                 mock(BatteryController.class),
                 mock(NavigationModeController.class),
+                mFeatureFlags,
                 mock(DumpManager.class),
                 new FakeDisplayTracker(mContext));
     }
 
+    private static GradientColors makeColors(@ColorInt int bgColor) {
+        GradientColors colors = new GradientColors();
+        colors.setMainColor(bgColor);
+        colors.setSecondaryColor(bgColor);
+        colors.setSupportsDarkText(!ContrastColorUtil.isColorDark(bgColor));
+        return colors;
+    }
+
     @Test
     public void testOnStatusBarAppearanceChanged_multipleStacks_allStacksLight() {
         final Rect firstBounds = new Rect(0, 0, 1, 1);
@@ -177,4 +208,54 @@ public class LightBarControllerTest extends SysuiTestCase {
                 false /* navbarColorManagedByIme */);
         verify(mLightBarTransitionsController).setIconsDark(eq(false), anyBoolean());
     }
+
+    @Test
+    public void validateNavBarChangesUpdateIcons() {
+        assumeTrue(testNewLightBarLogic());  // Only run in the new suite
+
+        // On the launcher in dark mode buttons are light
+        mLightBarController.setScrimState(ScrimState.UNLOCKED, 0f, COLORS_DARK);
+        mLightBarController.onNavigationBarAppearanceChanged(
+                0, /* nbModeChanged = */ true,
+                MODE_TRANSPARENT, /* navbarColorManagedByIme = */ false);
+        verifyNavBarIconsUnchanged(); // no changes yet; not attached
+
+        // Initial state is set when controller is set
+        mLightBarController.setNavigationBar(mNavBarController);
+        verifyNavBarIconsDarkSetTo(false);
+
+        // Changing the color of the transparent scrim has no effect
+        mLightBarController.setScrimState(ScrimState.UNLOCKED, 0f, COLORS_LIGHT);
+        verifyNavBarIconsUnchanged(); // still light
+
+        // Showing the notification shade with white scrim requires dark icons
+        mLightBarController.setScrimState(ScrimState.UNLOCKED, 1f, COLORS_LIGHT);
+        verifyNavBarIconsDarkSetTo(true);
+
+        // Expanded QS always provides a black background, so icons become light again
+        mLightBarController.setQsExpanded(true);
+        verifyNavBarIconsDarkSetTo(false);
+
+        // Tapping the QS tile to change to dark theme has no effect in this state
+        mLightBarController.setScrimState(ScrimState.UNLOCKED, 1f, COLORS_DARK);
+        verifyNavBarIconsUnchanged(); // still light
+
+        // collapsing QS in dark mode doesn't affect button color
+        mLightBarController.setQsExpanded(false);
+        verifyNavBarIconsUnchanged(); // still light
+
+        // Closing the shade has no affect
+        mLightBarController.setScrimState(ScrimState.UNLOCKED, 0f, COLORS_DARK);
+        verifyNavBarIconsUnchanged(); // still light
+    }
+
+    private void verifyNavBarIconsUnchanged() {
+        verify(mNavBarController, never()).setIconsDark(anyBoolean(), anyBoolean());
+    }
+
+    private void verifyNavBarIconsDarkSetTo(boolean iconsDark) {
+        verify(mNavBarController).setIconsDark(eq(iconsDark), anyBoolean());
+        verify(mNavBarController, never()).setIconsDark(eq(!iconsDark), anyBoolean());
+        clearInvocations(mNavBarController);
+    }
 }

packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/LightBarControllerWithNewLogicTest.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.statusbar.phone
+
+import androidx.test.filters.SmallTest
+import com.android.systemui.flags.Flags.NEW_LIGHT_BAR_LOGIC
+
+/**
+ * This file only needs to live as long as [NEW_LIGHT_BAR_LOGIC] does. When we delete that flag, we
+ * can roll this back into the old test.
+ */
+@SmallTest
+class LightBarControllerWithNewLogicTest : LightBarControllerTest() {
+    override fun testNewLightBarLogic(): Boolean = true
+}