From 269f49d9b852fd4ed6762dec16bdf8af9f751b96 Mon Sep 17 00:00:00 2001
From: JianYang Liu <jianyliu@google.com>
Date: Fri, 26 Jun 2020 14:18:11 -0700
Subject: [PATCH] Added systemui controller to control system bars.

When config_remoteInsetsControllerControlsSystemBars is true,
DisplaySystemBarsController provides its own policy of how system
bars are displayed for specific packages. Currently limited to
only auto versions of Android.

Bug: 149585273
Test: Manual, atest BarControlPolicyTest, atest InsetsPolicyTest,
      atest DisplaySystemBarsControllerTest
Change-Id: Ie6b1cc3e2760cbc9e48d62dfbd8bc3e23ffca20c
Merged-In: Ie6b1cc3e2760cbc9e48d62dfbd8bc3e23ffca20c
---
 api/test-current.txt                          |   1 +
 .../view/IDisplayWindowInsetsController.aidl  |   7 +
 core/java/android/view/IWindowManager.aidl    |  10 -
 core/res/res/values/config.xml                |  15 +-
 core/res/res/values/public.xml                |   2 +
 core/res/res/values/symbols.xml               |   2 +-
 .../android/systemui/CarSystemUIModule.java   |   6 +
 .../android/systemui/wm/BarControlPolicy.java | 250 ++++++++++++++++++
 .../wm/DisplaySystemBarsController.java       | 168 ++++++++++++
 ...DisplaySystemBarsInsetsControllerHost.java | 173 ++++++++++++
 .../systemui/wm/BarControlPolicyTest.java     | 195 ++++++++++++++
 .../wm/DisplaySystemBarsControllerTest.java   | 111 ++++++++
 .../systemui/wm/DisplayImeController.java     |   5 +
 .../com/android/server/wm/DisplayContent.java |  13 +
 .../com/android/server/wm/DisplayPolicy.java  |  24 +-
 .../com/android/server/wm/InsetsPolicy.java   |  58 +++-
 .../server/wm/WindowManagerService.java       |  21 --
 .../server/wm/DisplayContentTests.java        |  25 --
 .../server/wm/DisplayPolicyLayoutTests.java   |  22 --
 .../android/server/wm/InsetsPolicyTest.java   |   5 +-
 .../server/wm/WindowManagerServiceTests.java  |  18 --
 .../android/server/wm/WindowTestsBase.java    |  32 ++-
 22 files changed, 1034 insertions(+), 129 deletions(-)
 create mode 100644 packages/CarSystemUI/src/com/android/systemui/wm/BarControlPolicy.java
 create mode 100644 packages/CarSystemUI/src/com/android/systemui/wm/DisplaySystemBarsController.java
 create mode 100644 packages/CarSystemUI/src/com/android/systemui/wm/DisplaySystemBarsInsetsControllerHost.java
 create mode 100644 packages/CarSystemUI/tests/src/com/android/systemui/wm/BarControlPolicyTest.java
 create mode 100644 packages/CarSystemUI/tests/src/com/android/systemui/wm/DisplaySystemBarsControllerTest.java

diff --git a/api/test-current.txt b/api/test-current.txt
index 3838bad57aa71..cf97b848e80bd 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -34,6 +34,7 @@ package android {
   public static final class R.bool {
     field public static final int config_assistantOnTopOfDream = 17891333; // 0x1110005
     field public static final int config_perDisplayFocusEnabled = 17891332; // 0x1110004
+    field public static final int config_remoteInsetsControllerControlsSystemBars = 17891334; // 0x1110006
   }
 
   public static final class R.string {
diff --git a/core/java/android/view/IDisplayWindowInsetsController.aidl b/core/java/android/view/IDisplayWindowInsetsController.aidl
index 429c3aeba9b3d..a0d4a6587bcff 100644
--- a/core/java/android/view/IDisplayWindowInsetsController.aidl
+++ b/core/java/android/view/IDisplayWindowInsetsController.aidl
@@ -26,6 +26,13 @@ import android.view.InsetsState;
  */
 oneway interface IDisplayWindowInsetsController {
 
+    /**
+     * Called when top focused window changes to determine whether or not to take over insets
+     * control. Won't be called if config_remoteInsetsControllerControlsSystemBars is false.
+     * @param packageName: Passes the top package name
+     */
+    void topFocusedWindowChanged(String packageName);
+
     /**
      * @see IWindow#insetsChanged
      */
diff --git a/core/java/android/view/IWindowManager.aidl b/core/java/android/view/IWindowManager.aidl
index 58597cf3fb6d8..00fc67214f75e 100644
--- a/core/java/android/view/IWindowManager.aidl
+++ b/core/java/android/view/IWindowManager.aidl
@@ -387,16 +387,6 @@ interface IWindowManager
      */
     oneway void hideTransientBars(int displayId);
 
-    /**
-    * When set to {@code true} the system bars will always be shown. This is true even if an app
-    * requests to be fullscreen by setting the system ui visibility flags. The
-    * functionality was added for the automotive case as a way to guarantee required content stays
-    * on screen at all times.
-    *
-    * @hide
-    */
-    oneway void setForceShowSystemBars(boolean show);
-
     /**
      * Called by System UI to notify of changes to the visibility of Recents.
      */
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 39d20bbff3ba9..2bb63f1ca8df2 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -712,10 +712,17 @@
           case, this can be disabled (set to false). -->
     <bool name="config_enableCarDockHomeLaunch">true</bool>
 
-    <!-- Control whether to force the display of System UI Bars at all times regardless of
-         System Ui Flags. This can be useful in the Automotive case if there's a requirement for
-         a UI element to be on screen at all times. -->
-    <bool name="config_forceShowSystemBars">false</bool>
+    <!-- Control whether to force apps to give up control over the display of system bars at all
+         times regardless of System Ui Flags.
+         In the Automotive case, this is helpful if there's a requirement for an UI element to be on
+         screen at all times. Setting this to true also gives System UI the ability to override the
+         visibility controls for the system through the usage of the
+         "SYSTEM_BAR_VISIBILITY_OVERRIDE" setting.
+         Ex: Only setting the config to true will force show system bars for the entire system.
+         Ex: Setting the config to true and the "SYSTEM_BAR_VISIBILITY_OVERRIDE" setting to
+         "immersive.status=apps" will force show navigation bar for all apps and force hide status
+         bar for all apps. -->
+    <bool name="config_remoteInsetsControllerControlsSystemBars">false</bool>
 
     <!-- HDMI behavior -->
 
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index e2fbbf46608fb..e00aff1af37b7 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -3024,6 +3024,8 @@
 
     <!-- @hide @TestApi -->
     <public type="bool" name="config_assistantOnTopOfDream" id="0x01110005" />
+    <!-- @hide @TestApi -->
+    <public type="bool" name="config_remoteInsetsControllerControlsSystemBars" id="0x01110006" />
   <!-- ===============================================================
        Resources added in version S of the platform
 
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 871924255e663..bfb6802a2b802 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -1669,7 +1669,7 @@
   <java-symbol type="bool" name="config_enableCarDockHomeLaunch" />
   <java-symbol type="bool" name="config_enableLockBeforeUnlockScreen" />
   <java-symbol type="bool" name="config_enableLockScreenRotation" />
-  <java-symbol type="bool" name="config_forceShowSystemBars" />
+  <java-symbol type="bool" name="config_remoteInsetsControllerControlsSystemBars" />
   <java-symbol type="bool" name="config_lidControlsScreenLock" />
   <java-symbol type="bool" name="config_lidControlsSleep" />
   <java-symbol type="bool" name="config_lockDayNightMode" />
diff --git a/packages/CarSystemUI/src/com/android/systemui/CarSystemUIModule.java b/packages/CarSystemUI/src/com/android/systemui/CarSystemUIModule.java
index fe2be1df44bec..ca7e9ee4050b3 100644
--- a/packages/CarSystemUI/src/com/android/systemui/CarSystemUIModule.java
+++ b/packages/CarSystemUI/src/com/android/systemui/CarSystemUIModule.java
@@ -66,6 +66,8 @@ import com.android.systemui.statusbar.policy.ConfigurationController;
 import com.android.systemui.statusbar.policy.DeviceProvisionedController;
 import com.android.systemui.statusbar.policy.HeadsUpManager;
 import com.android.systemui.volume.VolumeDialogComponent;
+import com.android.systemui.wm.DisplayImeController;
+import com.android.systemui.wm.DisplaySystemBarsController;
 
 import javax.inject.Named;
 import javax.inject.Singleton;
@@ -96,6 +98,10 @@ public abstract class CarSystemUIModule {
                 groupManager, configurationController);
     }
 
+    @Binds
+    abstract DisplayImeController bindDisplayImeController(
+            DisplaySystemBarsController displaySystemBarsController);
+
     @Singleton
     @Provides
     @Named(LEAK_REPORT_EMAIL_NAME)
diff --git a/packages/CarSystemUI/src/com/android/systemui/wm/BarControlPolicy.java b/packages/CarSystemUI/src/com/android/systemui/wm/BarControlPolicy.java
new file mode 100644
index 0000000000000..5f9665ff7632b
--- /dev/null
+++ b/packages/CarSystemUI/src/com/android/systemui/wm/BarControlPolicy.java
@@ -0,0 +1,250 @@
+/*
+ * Copyright (C) 2020 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.wm;
+
+import android.car.settings.CarSettings;
+import android.content.Context;
+import android.database.ContentObserver;
+import android.os.Handler;
+import android.os.UserHandle;
+import android.provider.Settings;
+import android.util.ArraySet;
+import android.util.Slog;
+import android.view.WindowInsets;
+
+import androidx.annotation.VisibleForTesting;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+/**
+ * Util class to load PolicyControl and allow for querying if a package matches immersive filters.
+ * Similar to {@link com.android.server.wm.PolicyControl}, but separate due to CarSystemUI needing
+ * to set its own policies for system bar visibilities.
+ *
+ * This forces immersive mode behavior for one or both system bars (based on a package
+ * list).
+ *
+ * Control by setting {@link Settings.Global#POLICY_CONTROL_AUTO} to one or more name-value pairs.
+ * e.g.
+ *   to force immersive mode everywhere:
+ *     "immersive.full=*"
+ *   to force hide status bars for com.package1 but not com.package2:
+ *     "immersive.status=com.package1,-com.package2"
+ *
+ * Separate multiple name-value pairs with ':'
+ *   e.g. "immersive.status=com.package:immersive.navigation=*"
+ */
+public class BarControlPolicy {
+
+    private static final String TAG = "BarControlPolicy";
+    private static final boolean DEBUG = false;
+
+    private static final String NAME_IMMERSIVE_FULL = "immersive.full";
+    private static final String NAME_IMMERSIVE_STATUS = "immersive.status";
+    private static final String NAME_IMMERSIVE_NAVIGATION = "immersive.navigation";
+
+    @VisibleForTesting
+    static String sSettingValue;
+    @VisibleForTesting
+    static Filter sImmersiveStatusFilter;
+    private static Filter sImmersiveNavigationFilter;
+
+    /** Loads values from the POLICY_CONTROL setting to set filters. */
+    static boolean reloadFromSetting(Context context) {
+        if (DEBUG) Slog.d(TAG, "reloadFromSetting()");
+        String value = null;
+        try {
+            value = Settings.Global.getStringForUser(context.getContentResolver(),
+                    CarSettings.Global.SYSTEM_BAR_VISIBILITY_OVERRIDE,
+                    UserHandle.USER_CURRENT);
+            if (sSettingValue == value || sSettingValue != null && sSettingValue.equals(value)) {
+                return false;
+            }
+            setFilters(value);
+            sSettingValue = value;
+        } catch (Throwable t) {
+            Slog.w(TAG, "Error loading policy control, value=" + value, t);
+            return false;
+        }
+        return true;
+    }
+
+    /** Used in testing to reset BarControlPolicy. */
+    @VisibleForTesting
+    static void reset() {
+        sSettingValue = null;
+        sImmersiveStatusFilter = null;
+        sImmersiveNavigationFilter = null;
+    }
+
+    /**
+     * Registers a content observer to listen to updates to the SYSTEM_BAR_VISIBILITY_OVERRIDE flag.
+     */
+    static void registerContentObserver(Context context, Handler handler, FilterListener listener) {
+        context.getContentResolver().registerContentObserver(
+                Settings.Global.getUriFor(CarSettings.Global.SYSTEM_BAR_VISIBILITY_OVERRIDE), false,
+                new ContentObserver(handler) {
+                    @Override
+                    public void onChange(boolean selfChange) {
+                        if (reloadFromSetting(context)) {
+                            listener.onFilterUpdated();
+                        }
+                    }
+                }, UserHandle.USER_ALL);
+    }
+
+    /**
+     * Returns bar visibilities based on POLICY_CONTROL_AUTO filters and window policies.
+     * @return int[], where the first value is the inset types that should be shown, and the second
+     *         is the inset types that should be hidden.
+     */
+    @WindowInsets.Type.InsetsType
+    static int[] getBarVisibilities(String packageName) {
+        int hideTypes = 0;
+        int showTypes = 0;
+        if (matchesStatusFilter(packageName)) {
+            hideTypes |= WindowInsets.Type.statusBars();
+        } else {
+            showTypes |= WindowInsets.Type.statusBars();
+        }
+        if (matchesNavigationFilter(packageName)) {
+            hideTypes |= WindowInsets.Type.navigationBars();
+        } else {
+            showTypes |= WindowInsets.Type.navigationBars();
+        }
+
+        return new int[] {showTypes, hideTypes};
+    }
+
+    private static boolean matchesStatusFilter(String packageName) {
+        return sImmersiveStatusFilter != null && sImmersiveStatusFilter.matches(packageName);
+    }
+
+    private static boolean matchesNavigationFilter(String packageName) {
+        return sImmersiveNavigationFilter != null
+                && sImmersiveNavigationFilter.matches(packageName);
+    }
+
+    private static void setFilters(String value) {
+        if (DEBUG) Slog.d(TAG, "setFilters: " + value);
+        sImmersiveStatusFilter = null;
+        sImmersiveNavigationFilter = null;
+        if (value != null) {
+            String[] nvps = value.split(":");
+            for (String nvp : nvps) {
+                int i = nvp.indexOf('=');
+                if (i == -1) continue;
+                String n = nvp.substring(0, i);
+                String v = nvp.substring(i + 1);
+                if (n.equals(NAME_IMMERSIVE_FULL)) {
+                    Filter f = Filter.parse(v);
+                    sImmersiveStatusFilter = sImmersiveNavigationFilter = f;
+                } else if (n.equals(NAME_IMMERSIVE_STATUS)) {
+                    Filter f = Filter.parse(v);
+                    sImmersiveStatusFilter = f;
+                } else if (n.equals(NAME_IMMERSIVE_NAVIGATION)) {
+                    Filter f = Filter.parse(v);
+                    sImmersiveNavigationFilter = f;
+                }
+            }
+        }
+        if (DEBUG) {
+            Slog.d(TAG, "immersiveStatusFilter: " + sImmersiveStatusFilter);
+            Slog.d(TAG, "immersiveNavigationFilter: " + sImmersiveNavigationFilter);
+        }
+    }
+
+    private static class Filter {
+        private static final String ALL = "*";
+
+        private final ArraySet<String> mWhitelist;
+        private final ArraySet<String> mBlacklist;
+
+        private Filter(ArraySet<String> whitelist, ArraySet<String> blacklist) {
+            mWhitelist = whitelist;
+            mBlacklist = blacklist;
+        }
+
+        boolean matches(String packageName) {
+            if (packageName == null) return false;
+            if (onBlacklist(packageName)) return false;
+            return onWhitelist(packageName);
+        }
+
+        private boolean onBlacklist(String packageName) {
+            return mBlacklist.contains(packageName) || mBlacklist.contains(ALL);
+        }
+
+        private boolean onWhitelist(String packageName) {
+            return mWhitelist.contains(ALL) || mWhitelist.contains(packageName);
+        }
+
+        void dump(PrintWriter pw) {
+            pw.print("Filter[");
+            dump("whitelist", mWhitelist, pw); pw.print(',');
+            dump("blacklist", mBlacklist, pw); pw.print(']');
+        }
+
+        private void dump(String name, ArraySet<String> set, PrintWriter pw) {
+            pw.print(name); pw.print("=(");
+            int n = set.size();
+            for (int i = 0; i < n; i++) {
+                if (i > 0) pw.print(',');
+                pw.print(set.valueAt(i));
+            }
+            pw.print(')');
+        }
+
+        @Override
+        public String toString() {
+            StringWriter sw = new StringWriter();
+            dump(new PrintWriter(sw, true));
+            return sw.toString();
+        }
+
+        // value = comma-delimited list of tokens, where token = (package name|*)
+        // e.g. "com.package1", or "com.android.systemui, com.android.keyguard" or "*"
+        static Filter parse(String value) {
+            if (value == null) return null;
+            ArraySet<String> whitelist = new ArraySet<String>();
+            ArraySet<String> blacklist = new ArraySet<String>();
+            for (String token : value.split(",")) {
+                token = token.trim();
+                if (token.startsWith("-") && token.length() > 1) {
+                    token = token.substring(1);
+                    blacklist.add(token);
+                } else {
+                    whitelist.add(token);
+                }
+            }
+            return new Filter(whitelist, blacklist);
+        }
+    }
+
+    /**
+     * Interface to listen for updates to the filter triggered by the content observer listening to
+     * the SYSTEM_BAR_VISIBILITY_OVERRIDE flag.
+     */
+    interface FilterListener {
+
+        /** Callback triggered when the content observer updates the filter. */
+        void onFilterUpdated();
+    }
+
+    private BarControlPolicy() {}
+}
diff --git a/packages/CarSystemUI/src/com/android/systemui/wm/DisplaySystemBarsController.java b/packages/CarSystemUI/src/com/android/systemui/wm/DisplaySystemBarsController.java
new file mode 100644
index 0000000000000..a831464e7987a
--- /dev/null
+++ b/packages/CarSystemUI/src/com/android/systemui/wm/DisplaySystemBarsController.java
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2020 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.wm;
+
+import android.os.Handler;
+import android.os.RemoteException;
+import android.util.ArraySet;
+import android.util.Slog;
+import android.util.SparseArray;
+import android.view.IDisplayWindowInsetsController;
+import android.view.InsetsController;
+import android.view.InsetsSourceControl;
+import android.view.InsetsState;
+import android.view.WindowInsets;
+
+import androidx.annotation.VisibleForTesting;
+
+import com.android.systemui.TransactionPool;
+import com.android.systemui.dagger.qualifiers.Main;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+/**
+ * Controller that maps between displays and {@link IDisplayWindowInsetsController} in order to
+ * give system bar control to SystemUI.
+ * {@link R.bool#config_remoteInsetsControllerControlsSystemBars} determines whether this controller
+ * takes control or not.
+ */
+@Singleton
+public class DisplaySystemBarsController extends DisplayImeController {
+
+    private static final String TAG = "DisplaySystemBarsController";
+
+    private SparseArray<PerDisplay> mPerDisplaySparseArray;
+
+    @Inject
+    public DisplaySystemBarsController(
+            SystemWindows syswin,
+            DisplayController displayController,
+            @Main Handler mainHandler,
+            TransactionPool transactionPool) {
+        super(syswin, displayController, mainHandler, transactionPool);
+    }
+
+    @Override
+    public void onDisplayAdded(int displayId) {
+        PerDisplay pd = new PerDisplay(displayId);
+        try {
+            mSystemWindows.mWmService.setDisplayWindowInsetsController(displayId, pd);
+        } catch (RemoteException e) {
+            Slog.w(TAG, "Unable to set insets controller on display " + displayId);
+        }
+        // Lazy loading policy control filters instead of during boot.
+        if (mPerDisplaySparseArray == null) {
+            mPerDisplaySparseArray = new SparseArray<>();
+            BarControlPolicy.reloadFromSetting(mSystemWindows.mContext);
+            BarControlPolicy.registerContentObserver(mSystemWindows.mContext, mHandler, () -> {
+                int size = mPerDisplaySparseArray.size();
+                for (int i = 0; i < size; i++) {
+                    mPerDisplaySparseArray.valueAt(i).modifyDisplayWindowInsets();
+                }
+            });
+        }
+        mPerDisplaySparseArray.put(displayId, pd);
+    }
+
+    @Override
+    public void onDisplayRemoved(int displayId) {
+        try {
+            mSystemWindows.mWmService.setDisplayWindowInsetsController(displayId, null);
+        } catch (RemoteException e) {
+            Slog.w(TAG, "Unable to remove insets controller on display " + displayId);
+        }
+        mPerDisplaySparseArray.remove(displayId);
+    }
+
+    @VisibleForTesting
+    class PerDisplay extends IDisplayWindowInsetsController.Stub {
+
+        int mDisplayId;
+        InsetsController mInsetsController;
+        InsetsState mInsetsState = new InsetsState();
+        String mPackageName;
+
+        PerDisplay(int displayId) {
+            mDisplayId = displayId;
+            mInsetsController = new InsetsController(
+                    new DisplaySystemBarsInsetsControllerHost(mHandler, this));
+        }
+
+        @Override
+        public void insetsChanged(InsetsState insetsState) {
+            if (mInsetsState.equals(insetsState)) {
+                return;
+            }
+            mInsetsState.set(insetsState, true /* copySources */);
+            mInsetsController.onStateChanged(insetsState);
+            if (mPackageName != null) {
+                modifyDisplayWindowInsets();
+            }
+        }
+
+        @Override
+        public void insetsControlChanged(InsetsState insetsState,
+                InsetsSourceControl[] activeControls) {
+            mInsetsController.onControlsChanged(activeControls);
+        }
+
+        @Override
+        public void hideInsets(@WindowInsets.Type.InsetsType int types, boolean fromIme) {
+            mInsetsController.hide(types);
+        }
+
+        @Override
+        public void showInsets(@WindowInsets.Type.InsetsType int types, boolean fromIme) {
+            mInsetsController.show(types);
+        }
+
+        @Override
+        public void topFocusedWindowChanged(String packageName) {
+            // If both package names are null or both package names are equal, return.
+            if (mPackageName == packageName
+                    || (mPackageName != null && mPackageName.equals(packageName))) {
+                return;
+            }
+            mPackageName = packageName;
+            modifyDisplayWindowInsets();
+        }
+
+        private void modifyDisplayWindowInsets() {
+            if (mPackageName == null) {
+                return;
+            }
+            int[] barVisibilities = BarControlPolicy.getBarVisibilities(mPackageName);
+            updateInsetsState(barVisibilities[0], /* visible= */ true);
+            updateInsetsState(barVisibilities[1], /* visible= */ false);
+            showInsets(barVisibilities[0], /* fromIme= */ false);
+            hideInsets(barVisibilities[1], /* fromIme= */ false);
+            try {
+                mSystemWindows.mWmService.modifyDisplayWindowInsets(mDisplayId, mInsetsState);
+            } catch (RemoteException e) {
+                Slog.w(TAG, "Unable to update window manager service.");
+            }
+        }
+
+        private void updateInsetsState(@WindowInsets.Type.InsetsType int types, boolean visible) {
+            ArraySet<Integer> internalTypes = InsetsState.toInternalType(types);
+            for (int i = internalTypes.size() - 1; i >= 0; i--) {
+                mInsetsState.getSource(internalTypes.valueAt(i)).setVisible(visible);
+            }
+        }
+    }
+}
diff --git a/packages/CarSystemUI/src/com/android/systemui/wm/DisplaySystemBarsInsetsControllerHost.java b/packages/CarSystemUI/src/com/android/systemui/wm/DisplaySystemBarsInsetsControllerHost.java
new file mode 100644
index 0000000000000..2f8da44ba8518
--- /dev/null
+++ b/packages/CarSystemUI/src/com/android/systemui/wm/DisplaySystemBarsInsetsControllerHost.java
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2020 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.wm;
+
+import android.annotation.NonNull;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.RemoteException;
+import android.util.Log;
+import android.view.IDisplayWindowInsetsController;
+import android.view.InsetsController;
+import android.view.InsetsState;
+import android.view.SurfaceControl;
+import android.view.SyncRtSurfaceTransactionApplier;
+import android.view.WindowInsets;
+import android.view.WindowInsetsAnimation;
+import android.view.WindowInsetsController;
+import android.view.inputmethod.InputMethodManager;
+
+import java.util.List;
+
+/**
+ * Implements {@link InsetsController.Host} for usage by
+ * {@link DisplaySystemBarsController.PerDisplay} instances in {@link DisplaySystemBarsController}.
+ * @hide
+ */
+public class DisplaySystemBarsInsetsControllerHost implements InsetsController.Host {
+
+    private static final String TAG = DisplaySystemBarsInsetsControllerHost.class.getSimpleName();
+
+    private final Handler mHandler;
+    private final IDisplayWindowInsetsController mController;
+    private final float[] mTmpFloat9 = new float[9];
+
+    public DisplaySystemBarsInsetsControllerHost(
+            Handler handler, IDisplayWindowInsetsController controller) {
+        mHandler = handler;
+        mController = controller;
+    }
+
+    @Override
+    public Handler getHandler() {
+        return mHandler;
+    }
+
+    @Override
+    public void notifyInsetsChanged() {
+        // no-op
+    }
+
+    @Override
+    public void dispatchWindowInsetsAnimationPrepare(@NonNull WindowInsetsAnimation animation) {
+        // no-op
+    }
+
+    @Override
+    public WindowInsetsAnimation.Bounds dispatchWindowInsetsAnimationStart(
+            @NonNull WindowInsetsAnimation animation,
+            @NonNull WindowInsetsAnimation.Bounds bounds) {
+        return null;
+    }
+
+    @Override
+    public WindowInsets dispatchWindowInsetsAnimationProgress(@NonNull WindowInsets insets,
+            @NonNull List<WindowInsetsAnimation> runningAnimations) {
+        return null;
+    }
+
+    @Override
+    public void dispatchWindowInsetsAnimationEnd(@NonNull WindowInsetsAnimation animation) {
+        // no-op
+    }
+
+    @Override
+    public void applySurfaceParams(final SyncRtSurfaceTransactionApplier.SurfaceParams... params) {
+        for (int i = params.length - 1; i >= 0; i--) {
+            SyncRtSurfaceTransactionApplier.applyParams(
+                    new SurfaceControl.Transaction(), params[i], mTmpFloat9);
+        }
+
+    }
+
+    @Override
+    public void updateCompatSysUiVisibility(
+            @InsetsState.InternalInsetsType int type, boolean visible, boolean hasControl) {
+        // no-op
+    }
+
+    @Override
+    public void onInsetsModified(InsetsState insetsState) {
+        try {
+            mController.insetsChanged(insetsState);
+        } catch (RemoteException e) {
+            Log.e(TAG, "Failed to send insets to controller");
+        }
+    }
+
+    @Override
+    public boolean hasAnimationCallbacks() {
+        return false;
+    }
+
+    @Override
+    public void setSystemBarsAppearance(
+            @WindowInsetsController.Appearance int appearance,
+            @WindowInsetsController.Appearance int mask) {
+        // no-op
+    }
+
+    @Override
+    public @WindowInsetsController.Appearance int getSystemBarsAppearance() {
+        return 0;
+    }
+
+    @Override
+    public void setSystemBarsBehavior(@WindowInsetsController.Behavior int behavior) {
+        // no-op
+    }
+
+    @Override
+    public @WindowInsetsController.Behavior int getSystemBarsBehavior() {
+        return 0;
+    }
+
+    @Override
+    public void releaseSurfaceControlFromRt(SurfaceControl surfaceControl) {
+        surfaceControl.release();
+    }
+
+    @Override
+    public void addOnPreDrawRunnable(Runnable r) {
+        mHandler.post(r);
+    }
+
+    @Override
+    public void postInsetsAnimationCallback(Runnable r) {
+        mHandler.post(r);
+    }
+
+    @Override
+    public InputMethodManager getInputMethodManager() {
+        return null;
+    }
+
+    @Override
+    public String getRootViewTitle() {
+        return null;
+    }
+
+    @Override
+    public int dipToPx(int dips) {
+        return 0;
+    }
+
+    @Override
+    public IBinder getWindowToken() {
+        return null;
+    }
+}
diff --git a/packages/CarSystemUI/tests/src/com/android/systemui/wm/BarControlPolicyTest.java b/packages/CarSystemUI/tests/src/com/android/systemui/wm/BarControlPolicyTest.java
new file mode 100644
index 0000000000000..da7cb8e4f6ac8
--- /dev/null
+++ b/packages/CarSystemUI/tests/src/com/android/systemui/wm/BarControlPolicyTest.java
@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2020 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.wm;
+
+import static android.view.WindowInsets.Type.navigationBars;
+import static android.view.WindowInsets.Type.statusBars;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.car.settings.CarSettings;
+import android.provider.Settings;
+import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper;
+
+import androidx.test.filters.SmallTest;
+
+import com.android.systemui.SysuiTestCase;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidTestingRunner.class)
+@TestableLooper.RunWithLooper
+@SmallTest
+public class BarControlPolicyTest extends SysuiTestCase {
+
+    private static final String PACKAGE_NAME = "sample.app";
+
+    @Before
+    public void setUp() {
+        BarControlPolicy.reset();
+    }
+
+    @After
+    public void tearDown() {
+        Settings.Global.clearProviderForTest();
+    }
+
+    @Test
+    public void reloadFromSetting_notSet_doesNotSetFilters() {
+        BarControlPolicy.reloadFromSetting(mContext);
+
+        assertThat(BarControlPolicy.sImmersiveStatusFilter).isNull();
+    }
+
+    @Test
+    public void reloadFromSetting_invalidPolicyControlString_doesNotSetFilters() {
+        String text = "sample text";
+        Settings.Global.putString(
+                mContext.getContentResolver(),
+                CarSettings.Global.SYSTEM_BAR_VISIBILITY_OVERRIDE,
+                text
+        );
+
+        BarControlPolicy.reloadFromSetting(mContext);
+
+        assertThat(BarControlPolicy.sImmersiveStatusFilter).isNull();
+    }
+
+    @Test
+    public void reloadFromSetting_validPolicyControlString_setsFilters() {
+        String text = "immersive.status=" + PACKAGE_NAME;
+        Settings.Global.putString(
+                mContext.getContentResolver(),
+                CarSettings.Global.SYSTEM_BAR_VISIBILITY_OVERRIDE,
+                text
+        );
+
+        BarControlPolicy.reloadFromSetting(mContext);
+
+        assertThat(BarControlPolicy.sImmersiveStatusFilter).isNotNull();
+    }
+
+    @Test
+    public void reloadFromSetting_filtersSet_doesNotSetFiltersAgain() {
+        String text = "immersive.status=" + PACKAGE_NAME;
+        Settings.Global.putString(
+                mContext.getContentResolver(),
+                CarSettings.Global.SYSTEM_BAR_VISIBILITY_OVERRIDE,
+                text
+        );
+
+        BarControlPolicy.reloadFromSetting(mContext);
+
+        assertThat(BarControlPolicy.reloadFromSetting(mContext)).isFalse();
+    }
+
+    @Test
+    public void getBarVisibilities_policyControlNotSet_showsSystemBars() {
+        int[] visibilities = BarControlPolicy.getBarVisibilities(PACKAGE_NAME);
+
+        assertThat(visibilities[0]).isEqualTo(statusBars() | navigationBars());
+        assertThat(visibilities[1]).isEqualTo(0);
+    }
+
+    @Test
+    public void getBarVisibilities_immersiveStatusForAppAndMatchingApp_hidesStatusBar() {
+        Settings.Global.putString(
+                mContext.getContentResolver(),
+                CarSettings.Global.SYSTEM_BAR_VISIBILITY_OVERRIDE,
+                "immersive.status=" + PACKAGE_NAME);
+        BarControlPolicy.reloadFromSetting(mContext);
+
+        int[] visibilities = BarControlPolicy.getBarVisibilities(PACKAGE_NAME);
+
+        assertThat(visibilities[0]).isEqualTo(navigationBars());
+        assertThat(visibilities[1]).isEqualTo(statusBars());
+    }
+
+    @Test
+    public void getBarVisibilities_immersiveStatusForAppAndNonMatchingApp_showsSystemBars() {
+        Settings.Global.putString(
+                mContext.getContentResolver(),
+                CarSettings.Global.SYSTEM_BAR_VISIBILITY_OVERRIDE,
+                "immersive.status=" + PACKAGE_NAME);
+        BarControlPolicy.reloadFromSetting(mContext);
+
+        int[] visibilities = BarControlPolicy.getBarVisibilities("sample2.app");
+
+        assertThat(visibilities[0]).isEqualTo(statusBars() | navigationBars());
+        assertThat(visibilities[1]).isEqualTo(0);
+    }
+
+    @Test
+    public void getBarVisibilities_immersiveStatusForAppsAndNonApp_showsSystemBars() {
+        Settings.Global.putString(
+                mContext.getContentResolver(),
+                CarSettings.Global.SYSTEM_BAR_VISIBILITY_OVERRIDE,
+                "immersive.status=apps");
+        BarControlPolicy.reloadFromSetting(mContext);
+
+        int[] visibilities = BarControlPolicy.getBarVisibilities(PACKAGE_NAME);
+
+        assertThat(visibilities[0]).isEqualTo(statusBars() | navigationBars());
+        assertThat(visibilities[1]).isEqualTo(0);
+    }
+
+    @Test
+    public void getBarVisibilities_immersiveFullForAppAndMatchingApp_hidesSystemBars() {
+        Settings.Global.putString(
+                mContext.getContentResolver(),
+                CarSettings.Global.SYSTEM_BAR_VISIBILITY_OVERRIDE,
+                "immersive.full=" + PACKAGE_NAME);
+        BarControlPolicy.reloadFromSetting(mContext);
+
+        int[] visibilities = BarControlPolicy.getBarVisibilities(PACKAGE_NAME);
+
+        assertThat(visibilities[0]).isEqualTo(0);
+        assertThat(visibilities[1]).isEqualTo(statusBars() | navigationBars());
+    }
+
+    @Test
+    public void getBarVisibilities_immersiveFullForAppAndNonMatchingApp_showsSystemBars() {
+        Settings.Global.putString(
+                mContext.getContentResolver(),
+                CarSettings.Global.SYSTEM_BAR_VISIBILITY_OVERRIDE,
+                "immersive.full=" + PACKAGE_NAME);
+        BarControlPolicy.reloadFromSetting(mContext);
+
+        int[] visibilities = BarControlPolicy.getBarVisibilities("sample2.app");
+
+        assertThat(visibilities[0]).isEqualTo(statusBars() | navigationBars());
+        assertThat(visibilities[1]).isEqualTo(0);
+    }
+
+    @Test
+    public void getBarVisibilities_immersiveFullForAppsAndNonApp_showsSystemBars() {
+        Settings.Global.putString(
+                mContext.getContentResolver(),
+                CarSettings.Global.SYSTEM_BAR_VISIBILITY_OVERRIDE,
+                "immersive.full=apps");
+        BarControlPolicy.reloadFromSetting(mContext);
+
+        int[] visibilities = BarControlPolicy.getBarVisibilities(PACKAGE_NAME);
+
+        assertThat(visibilities[0]).isEqualTo(statusBars() | navigationBars());
+        assertThat(visibilities[1]).isEqualTo(0);
+    }
+}
diff --git a/packages/CarSystemUI/tests/src/com/android/systemui/wm/DisplaySystemBarsControllerTest.java b/packages/CarSystemUI/tests/src/com/android/systemui/wm/DisplaySystemBarsControllerTest.java
new file mode 100644
index 0000000000000..29cc8eec4bc3e
--- /dev/null
+++ b/packages/CarSystemUI/tests/src/com/android/systemui/wm/DisplaySystemBarsControllerTest.java
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2020 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.wm;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.eq;
+import static org.mockito.Mockito.verify;
+
+import android.car.settings.CarSettings;
+import android.os.Handler;
+import android.os.RemoteException;
+import android.provider.Settings;
+import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper;
+import android.view.IWindowManager;
+
+import androidx.test.filters.SmallTest;
+
+import com.android.systemui.SysuiTestCase;
+import com.android.systemui.TransactionPool;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+@RunWith(AndroidTestingRunner.class)
+@TestableLooper.RunWithLooper
+@SmallTest
+public class DisplaySystemBarsControllerTest extends SysuiTestCase {
+
+    private DisplaySystemBarsController mController;
+
+    private static final int DISPLAY_ID = 1;
+
+    @Mock
+    private SystemWindows mSystemWindows;
+    @Mock
+    private IWindowManager mIWindowManager;
+    @Mock
+    private DisplayController mDisplayController;
+    @Mock
+    private Handler mHandler;
+    @Mock
+    private TransactionPool mTransactionPool;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mSystemWindows.mContext = mContext;
+        mSystemWindows.mWmService = mIWindowManager;
+
+        mController = new DisplaySystemBarsController(
+                mSystemWindows,
+                mDisplayController,
+                mHandler,
+                mTransactionPool
+        );
+    }
+
+    @Test
+    public void onDisplayAdded_setsDisplayWindowInsetsControllerOnWMService()
+            throws RemoteException {
+        mController.onDisplayAdded(DISPLAY_ID);
+
+        verify(mIWindowManager).setDisplayWindowInsetsController(
+                eq(DISPLAY_ID), any(DisplaySystemBarsController.PerDisplay.class));
+    }
+
+    @Test
+    public void onDisplayAdded_loadsBarControlPolicyFilters() {
+        String text = "sample text";
+        Settings.Global.putString(
+                mContext.getContentResolver(),
+                CarSettings.Global.SYSTEM_BAR_VISIBILITY_OVERRIDE,
+                text
+        );
+
+        mController.onDisplayAdded(DISPLAY_ID);
+
+        assertThat(BarControlPolicy.sSettingValue).isEqualTo(text);
+    }
+
+    @Test
+    public void onDisplayRemoved_unsetsDisplayWindowInsetsControllerInWMService()
+            throws RemoteException {
+        mController.onDisplayAdded(DISPLAY_ID);
+
+        mController.onDisplayRemoved(DISPLAY_ID);
+
+        verify(mIWindowManager).setDisplayWindowInsetsController(
+                DISPLAY_ID, /* displayWindowInsetsController= */ null);
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/wm/DisplayImeController.java b/packages/SystemUI/src/com/android/systemui/wm/DisplayImeController.java
index 926f653153eec..89f469a438a96 100644
--- a/packages/SystemUI/src/com/android/systemui/wm/DisplayImeController.java
+++ b/packages/SystemUI/src/com/android/systemui/wm/DisplayImeController.java
@@ -259,6 +259,11 @@ public class DisplayImeController implements DisplayController.OnDisplaysChanged
             mHandler.post(() -> startAnimation(false /* show */, false /* forceRestart */));
         }
 
+        @Override
+        public void topFocusedWindowChanged(String packageName) {
+            // no-op
+        }
+
         /**
          * Sends the local visibility state back to window manager. Needed for legacy adjustForIme.
          */
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 5d3f3c0401ef0..cdbc7d2f4861b 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -5774,6 +5774,19 @@ class DisplayContent extends WindowContainer<DisplayContent.DisplayChildWindowCo
             mRemoteInsetsController = controller;
         }
 
+        /**
+         * Notifies the remote insets controller that the top focused window has changed.
+         *
+         * @param packageName The name of the package that is open in the top focused window.
+         */
+        void topFocusedWindowChanged(String packageName) {
+            try {
+                mRemoteInsetsController.topFocusedWindowChanged(packageName);
+            } catch (RemoteException e) {
+                Slog.w(TAG, "Failed to deliver package in top focused window change", e);
+            }
+        }
+
         void notifyInsetsChanged() {
             try {
                 mRemoteInsetsController.insetsChanged(
diff --git a/services/core/java/com/android/server/wm/DisplayPolicy.java b/services/core/java/com/android/server/wm/DisplayPolicy.java
index 0d467c50aa115..20f9bf3f67095 100644
--- a/services/core/java/com/android/server/wm/DisplayPolicy.java
+++ b/services/core/java/com/android/server/wm/DisplayPolicy.java
@@ -386,11 +386,6 @@ public class DisplayPolicy {
     private int mForcingShowNavBarLayer;
     private boolean mForceShowSystemBars;
 
-    /**
-     * Force the display of system bars regardless of other settings.
-     */
-    private boolean mForceShowSystemBarsFromExternal;
-
     private boolean mShowingDream;
     private boolean mLastShowingDream;
     private boolean mDreamingLockscreen;
@@ -480,7 +475,6 @@ public class DisplayPolicy {
         final Resources r = mContext.getResources();
         mCarDockEnablesAccelerometer = r.getBoolean(R.bool.config_carDockEnablesAccelerometer);
         mDeskDockEnablesAccelerometer = r.getBoolean(R.bool.config_deskDockEnablesAccelerometer);
-        mForceShowSystemBarsFromExternal = r.getBoolean(R.bool.config_forceShowSystemBars);
 
         mAccessibilityManager = (AccessibilityManager) mContext.getSystemService(
                 Context.ACCESSIBILITY_SERVICE);
@@ -698,17 +692,6 @@ public class DisplayPolicy {
         return mDockMode;
     }
 
-    /**
-     * @see WindowManagerService.setForceShowSystemBars
-     */
-    void setForceShowSystemBars(boolean forceShowSystemBars) {
-        mForceShowSystemBarsFromExternal = forceShowSystemBars;
-    }
-
-    boolean getForceShowSystemBars() {
-        return mForceShowSystemBarsFromExternal;
-    }
-
     public boolean hasNavigationBar() {
         return mHasNavigationBar;
     }
@@ -3547,8 +3530,7 @@ public class DisplayPolicy {
         // We need to force system bars when the docked stack is visible, when the freeform stack
         // is focused but also when we are resizing for the transitions when docked stack
         // visibility changes.
-        mForceShowSystemBars = dockedStackVisible || win.inFreeformWindowingMode() || resizing
-                || mForceShowSystemBarsFromExternal;
+        mForceShowSystemBars = dockedStackVisible || win.inFreeformWindowingMode() || resizing;
         final boolean forceOpaqueStatusBar = mForceShowSystemBars && !isKeyguardShowing();
 
         // apply translucent bar vis flags
@@ -3923,8 +3905,8 @@ public class DisplayPolicy {
         }
         pw.print(prefix); pw.print("mTopIsFullscreen="); pw.println(mTopIsFullscreen);
         pw.print(prefix); pw.print("mForceStatusBar="); pw.print(mForceStatusBar);
-        pw.print(prefix); pw.print("mForceShowSystemBarsFromExternal=");
-        pw.print(mForceShowSystemBarsFromExternal);
+        pw.print(prefix); pw.print("mRemoteInsetsControllerControlsSystemBars");
+        pw.print(mDisplayContent.getInsetsPolicy().getRemoteInsetsControllerControlsSystemBars());
         pw.print(" mAllowLockscreenWhenOn="); pw.println(mAllowLockscreenWhenOn);
         mStatusBarController.dump(pw, prefix);
         mNavigationBarController.dump(pw, prefix);
diff --git a/services/core/java/com/android/server/wm/InsetsPolicy.java b/services/core/java/com/android/server/wm/InsetsPolicy.java
index 254356d673e35..82e7555c62acb 100644
--- a/services/core/java/com/android/server/wm/InsetsPolicy.java
+++ b/services/core/java/com/android/server/wm/InsetsPolicy.java
@@ -46,7 +46,9 @@ import android.view.WindowInsets.Type.InsetsType;
 import android.view.WindowInsetsAnimation;
 import android.view.WindowInsetsAnimation.Bounds;
 import android.view.WindowInsetsAnimationControlListener;
+import android.view.WindowManager;
 
+import com.android.internal.R;
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.DisplayThread;
 
@@ -97,12 +99,31 @@ class InsetsPolicy {
     private BarWindow mStatusBar = new BarWindow(StatusBarManager.WINDOW_STATUS_BAR);
     private BarWindow mNavBar = new BarWindow(StatusBarManager.WINDOW_NAVIGATION_BAR);
     private boolean mAnimatingShown;
+
+    /**
+     * Let remote insets controller control system bars regardless of other settings.
+     */
+    private boolean mRemoteInsetsControllerControlsSystemBars;
     private final float[] mTmpFloat9 = new float[9];
 
     InsetsPolicy(InsetsStateController stateController, DisplayContent displayContent) {
         mStateController = stateController;
         mDisplayContent = displayContent;
         mPolicy = displayContent.getDisplayPolicy();
+        mRemoteInsetsControllerControlsSystemBars = mPolicy.getContext().getResources().getBoolean(
+                R.bool.config_remoteInsetsControllerControlsSystemBars);
+    }
+
+    boolean getRemoteInsetsControllerControlsSystemBars() {
+        return mRemoteInsetsControllerControlsSystemBars;
+    }
+
+    /**
+     * Used only for testing.
+     */
+    @VisibleForTesting
+    void setRemoteInsetsControllerControlsSystemBars(boolean controlsSystemBars) {
+        mRemoteInsetsControllerControlsSystemBars = controlsSystemBars;
     }
 
     /** Updates the target which can control system bars. */
@@ -256,6 +277,11 @@ class InsetsPolicy {
             // Notification shade has control anyways, no reason to force anything.
             return focusedWin;
         }
+        if (remoteInsetsControllerControlsSystemBars(focusedWin)) {
+            mDisplayContent.mRemoteInsetsControlTarget.topFocusedWindowChanged(
+                    focusedWin.mAttrs.packageName);
+            return mDisplayContent.mRemoteInsetsControlTarget;
+        }
         if (forceShowsSystemBarsForWindowingMode) {
             // Status bar is forcibly shown for the windowing mode which is a steady state.
             // We don't want the client to control the status bar, and we will dispatch the real
@@ -285,6 +311,11 @@ class InsetsPolicy {
             // Notification shade has control anyways, no reason to force anything.
             return focusedWin;
         }
+        if (remoteInsetsControllerControlsSystemBars(focusedWin)) {
+            mDisplayContent.mRemoteInsetsControlTarget.topFocusedWindowChanged(
+                    focusedWin.mAttrs.packageName);
+            return mDisplayContent.mRemoteInsetsControlTarget;
+        }
         if (forceShowsSystemBarsForWindowingMode) {
             // Navigation bar is forcibly shown for the windowing mode which is a steady state.
             // We don't want the client to control the navigation bar, and we will dispatch the real
@@ -300,6 +331,28 @@ class InsetsPolicy {
         return focusedWin;
     }
 
+    /**
+     * Determines whether the remote insets controller should take control of system bars for all
+     * windows.
+     */
+    boolean remoteInsetsControllerControlsSystemBars(@Nullable WindowState focusedWin) {
+        if (focusedWin == null) {
+            return false;
+        }
+        if (!mRemoteInsetsControllerControlsSystemBars) {
+            return false;
+        }
+        if (mDisplayContent == null || mDisplayContent.mRemoteInsetsControlTarget == null) {
+            // No remote insets control target to take control of insets.
+            return false;
+        }
+        // If necessary, auto can control application windows when
+        // config_remoteInsetsControllerControlsSystemBars is set to true. This is useful in cases
+        // where we want to dictate system bar inset state for applications.
+        return focusedWin.getAttrs().type >= WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW
+                && focusedWin.getAttrs().type <= WindowManager.LayoutParams.LAST_APPLICATION_WINDOW;
+    }
+
     private boolean forceShowsStatusBarTransiently() {
         final WindowState win = mPolicy.getStatusBar();
         return win != null && (win.mAttrs.privateFlags & PRIVATE_FLAG_FORCE_SHOW_STATUS_BAR) != 0;
@@ -321,10 +374,7 @@ class InsetsPolicy {
         // We need to force system bars when the docked stack is visible, when the freeform stack
         // is visible but also when we are resizing for the transitions when docked stack
         // visibility changes.
-        return isDockedStackVisible
-                || isFreeformStackVisible
-                || isResizing
-                || mPolicy.getForceShowSystemBars();
+        return isDockedStackVisible || isFreeformStackVisible || isResizing;
     }
 
     @VisibleForTesting
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index ef81c0a5d206c..371d6b56f6871 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -5827,27 +5827,6 @@ public class WindowManagerService extends IWindowManager.Stub
         }
     }
 
-    @Override
-    public void setForceShowSystemBars(boolean show) {
-        boolean isAutomotive = mContext.getPackageManager().hasSystemFeature(
-                PackageManager.FEATURE_AUTOMOTIVE);
-        if (!isAutomotive) {
-            throw new UnsupportedOperationException("Force showing system bars is only supported"
-                    + "for Automotive use cases.");
-        }
-        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.STATUS_BAR)
-                != PackageManager.PERMISSION_GRANTED) {
-            throw new SecurityException("Caller does not hold permission "
-                    + android.Manifest.permission.STATUS_BAR);
-        }
-        synchronized (mGlobalLock) {
-            final PooledConsumer c = PooledLambda.obtainConsumer(
-                    DisplayPolicy::setForceShowSystemBars, PooledLambda.__(), show);
-            mRoot.forAllDisplayPolicies(c);
-            c.recycle();
-        }
-    }
-
     public void setNavBarVirtualKeyHapticFeedbackEnabled(boolean enabled) {
         if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.STATUS_BAR)
                 != PackageManager.PERMISSION_GRANTED) {
diff --git a/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java b/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java
index d6e038d8d027d..85736ab11e651 100644
--- a/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java
@@ -96,13 +96,10 @@ import android.platform.test.annotations.Presubmit;
 import android.util.DisplayMetrics;
 import android.view.DisplayCutout;
 import android.view.Gravity;
-import android.view.IDisplayWindowInsetsController;
 import android.view.IDisplayWindowRotationCallback;
 import android.view.IDisplayWindowRotationController;
 import android.view.ISystemGestureExclusionListener;
 import android.view.IWindowManager;
-import android.view.InsetsSourceControl;
-import android.view.InsetsState;
 import android.view.MotionEvent;
 import android.view.Surface;
 import android.view.SurfaceControl.Transaction;
@@ -954,28 +951,6 @@ public class DisplayContentTests extends WindowTestsBase {
         assertEquals(mAppWindow, mDisplayContent.computeImeControlTarget());
     }
 
-    private IDisplayWindowInsetsController createDisplayWindowInsetsController() {
-        return new IDisplayWindowInsetsController.Stub() {
-
-            @Override
-            public void insetsChanged(InsetsState insetsState) throws RemoteException {
-            }
-
-            @Override
-            public void insetsControlChanged(InsetsState insetsState,
-                    InsetsSourceControl[] insetsSourceControls) throws RemoteException {
-            }
-
-            @Override
-            public void showInsets(int i, boolean b) throws RemoteException {
-            }
-
-            @Override
-            public void hideInsets(int i, boolean b) throws RemoteException {
-            }
-        };
-    }
-
     @Test
     public void testUpdateSystemGestureExclusion() throws Exception {
         final DisplayContent dc = createNewDisplay();
diff --git a/services/tests/wmtests/src/com/android/server/wm/DisplayPolicyLayoutTests.java b/services/tests/wmtests/src/com/android/server/wm/DisplayPolicyLayoutTests.java
index 1922351ac1eb3..278de56dfea03 100644
--- a/services/tests/wmtests/src/com/android/server/wm/DisplayPolicyLayoutTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/DisplayPolicyLayoutTests.java
@@ -67,7 +67,6 @@ import android.view.WindowManager;
 
 import androidx.test.filters.SmallTest;
 
-import com.android.server.policy.WindowManagerPolicy;
 import com.android.server.wm.utils.WmDisplayCutout;
 
 import org.junit.Before;
@@ -806,27 +805,6 @@ public class DisplayPolicyLayoutTests extends DisplayPolicyTestsBase {
                 new ToStringComparatorWrapper<>(simulatedInsetsState));
     }
 
-    @Test
-    public void forceShowSystemBars_clearsSystemUIFlags() {
-        mDisplayPolicy.mLastSystemUiFlags |= SYSTEM_UI_FLAG_FULLSCREEN;
-        mWindow.mAttrs.subtreeSystemUiVisibility |= SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
-        mWindow.mAttrs.flags =
-                FLAG_LAYOUT_IN_SCREEN | FLAG_LAYOUT_INSET_DECOR | FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS;
-        mWindow.mSystemUiVisibility = SYSTEM_UI_FLAG_FULLSCREEN;
-        mDisplayPolicy.setForceShowSystemBars(true);
-        addWindow(mWindow);
-
-        mDisplayPolicy.beginLayoutLw(mFrames, 0 /* UI mode */);
-        mDisplayPolicy.layoutWindowLw(mWindow, null, mFrames);
-        // triggers updateSystemUiVisibilityLw which will reset the flags as needed
-        int finishPostLayoutPolicyLw = mDisplayPolicy.focusChangedLw(mWindow, mWindow);
-
-        assertEquals(WindowManagerPolicy.FINISH_LAYOUT_REDO_LAYOUT, finishPostLayoutPolicyLw);
-        assertEquals(0, mDisplayPolicy.mLastSystemUiFlags);
-        assertEquals(0, mWindow.mAttrs.systemUiVisibility);
-        assertInsetByTopBottom(mWindow.getContentFrameLw(), STATUS_BAR_HEIGHT, NAV_BAR_HEIGHT);
-    }
-
     @Test
     public void testScreenDecorWindows() {
         final WindowState decorWindow = createWindow(null, TYPE_APPLICATION_OVERLAY, "decorWindow");
diff --git a/services/tests/wmtests/src/com/android/server/wm/InsetsPolicyTest.java b/services/tests/wmtests/src/com/android/server/wm/InsetsPolicyTest.java
index c794e1a3b3282..87bc7f1bf7817 100644
--- a/services/tests/wmtests/src/com/android/server/wm/InsetsPolicyTest.java
+++ b/services/tests/wmtests/src/com/android/server/wm/InsetsPolicyTest.java
@@ -172,8 +172,9 @@ public class InsetsPolicyTest extends WindowTestsBase {
     }
 
     @Test
-    public void testControlsForDispatch_forceShowSystemBarsFromExternal_appHasNoControl() {
-        mDisplayContent.getDisplayPolicy().setForceShowSystemBars(true);
+    public void testControlsForDispatch_remoteInsetsControllerControlsBars_appHasNoControl() {
+        mDisplayContent.setRemoteInsetsController(createDisplayWindowInsetsController());
+        mDisplayContent.getInsetsPolicy().setRemoteInsetsControllerControlsSystemBars(true);
         addWindow(TYPE_STATUS_BAR, "statusBar");
         addWindow(TYPE_NAVIGATION_BAR, "navBar");
 
diff --git a/services/tests/wmtests/src/com/android/server/wm/WindowManagerServiceTests.java b/services/tests/wmtests/src/com/android/server/wm/WindowManagerServiceTests.java
index f52905ef6ae9b..499bf668decfe 100644
--- a/services/tests/wmtests/src/com/android/server/wm/WindowManagerServiceTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/WindowManagerServiceTests.java
@@ -60,24 +60,6 @@ public class WindowManagerServiceTests extends WindowTestsBase {
     @Rule
     public ExpectedException mExpectedException = ExpectedException.none();
 
-    @Test
-    public void testForceShowSystemBarsThrowsExceptionForNonAutomotive() {
-        if (!isAutomotive()) {
-            mExpectedException.expect(UnsupportedOperationException.class);
-
-            mWm.setForceShowSystemBars(true);
-        }
-    }
-
-    @Test
-    public void testForceShowSystemBarsDoesNotThrowExceptionForAutomotiveWithStatusBarPermission() {
-        if (isAutomotive()) {
-            mExpectedException.none();
-
-            mWm.setForceShowSystemBars(true);
-        }
-    }
-
     private boolean isAutomotive() {
         return getInstrumentation().getTargetContext().getPackageManager().hasSystemFeature(
                 PackageManager.FEATURE_AUTOMOTIVE);
diff --git a/services/tests/wmtests/src/com/android/server/wm/WindowTestsBase.java b/services/tests/wmtests/src/com/android/server/wm/WindowTestsBase.java
index a1e5b80eb2eda..156298c86d41a 100644
--- a/services/tests/wmtests/src/com/android/server/wm/WindowTestsBase.java
+++ b/services/tests/wmtests/src/com/android/server/wm/WindowTestsBase.java
@@ -41,11 +41,15 @@ import static org.mockito.Mockito.mock;
 
 import android.content.Context;
 import android.content.Intent;
+import android.os.RemoteException;
 import android.os.UserHandle;
 import android.util.Log;
 import android.view.Display;
 import android.view.DisplayInfo;
+import android.view.IDisplayWindowInsetsController;
 import android.view.IWindow;
+import android.view.InsetsSourceControl;
+import android.view.InsetsState;
 import android.view.SurfaceControl.Transaction;
 import android.view.View;
 import android.view.WindowManager;
@@ -123,7 +127,7 @@ class WindowTestsBase extends SystemServiceTestsBase {
             mChildAppWindowBelow = createCommonWindow(mAppWindow,
                     TYPE_APPLICATION_MEDIA_OVERLAY,
                     "mChildAppWindowBelow");
-            mDisplayContent.getDisplayPolicy().setForceShowSystemBars(false);
+            mDisplayContent.getInsetsPolicy().setRemoteInsetsControllerControlsSystemBars(false);
 
             // Adding a display will cause freezing the display. Make sure to wait until it's
             // unfrozen to not run into race conditions with the tests.
@@ -344,6 +348,32 @@ class WindowTestsBase extends SystemServiceTestsBase {
         return createNewDisplay(displayInfo, false /* supportIme */);
     }
 
+    IDisplayWindowInsetsController createDisplayWindowInsetsController() {
+        return new IDisplayWindowInsetsController.Stub() {
+
+            @Override
+            public void insetsChanged(InsetsState insetsState) throws RemoteException {
+            }
+
+            @Override
+            public void insetsControlChanged(InsetsState insetsState,
+                    InsetsSourceControl[] insetsSourceControls) throws RemoteException {
+            }
+
+            @Override
+            public void showInsets(int i, boolean b) throws RemoteException {
+            }
+
+            @Override
+            public void hideInsets(int i, boolean b) throws RemoteException {
+            }
+
+            @Override
+            public void topFocusedWindowChanged(String packageName) {
+            }
+        };
+    }
+
     /** Sets the default minimum task size to 1 so that tests can use small task sizes */
     void removeGlobalMinSizeRestriction() {
         mWm.mAtmService.mRootWindowContainer.mDefaultMinSizeOfResizeableTaskDp = 1;