Merge changes from topic "hub-mode-settings" into tm-qpr-dev

* changes:
  Add top-level Communal settings.
  Change screensaver ctrlr to base pref ctrlr.
diff --git a/res/drawable/ia_settings_communal.xml b/res/drawable/ia_settings_communal.xml
new file mode 100644
index 0000000..14642c9
--- /dev/null
+++ b/res/drawable/ia_settings_communal.xml
@@ -0,0 +1,24 @@
+<!-- Copyright (C) 2022 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.
+-->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="48"
+        android:viewportHeight="48"
+        android:tint="?android:attr/colorControlNormal">
+    <path android:fillColor="@android:color/white"
+          android:pathData="M24,38Q19,38 15.5,37.325Q12,36.65 12,35.7V34H7.25Q5.95,34 5.05,33.025Q4.15,32.05 4.25,30.75L5.8,12.75Q5.9,11.6 6.75,10.8Q7.6,10 8.75,10H39.25Q40.4,10 41.25,10.8Q42.1,11.6 42.2,12.75L43.75,30.75Q43.85,32.05 42.95,33.025Q42.05,34 40.75,34H36V35.7Q36,36.65 32.5,37.325Q29,38 24,38ZM7.25,31H40.75Q40.75,31 40.75,31Q40.75,31 40.75,31L39.25,13Q39.25,13 39.25,13Q39.25,13 39.25,13H8.75Q8.75,13 8.75,13Q8.75,13 8.75,13L7.25,31Q7.25,31 7.25,31Q7.25,31 7.25,31Z"/>
+</vector>
diff --git a/res/values/config.xml b/res/values/config.xml
index e3b8618..4aa4142 100755
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -622,6 +622,9 @@
     <!-- Whether the dream setup activity should be enabled as part of setupwizard -->
     <bool name="dream_setup_supported">false</bool>
 
+    <!-- Whether to show communal settings at the top level. -->
+    <bool name="config_show_communal_settings">false</bool>
+
     <!-- Whether to put the apps with system UID into system component bucket or not -->
     <bool name="config_battery_combine_system_components">false</bool>
 
diff --git a/res/values/menu_keys.xml b/res/values/menu_keys.xml
index 2841b69..27e9639 100755
--- a/res/values/menu_keys.xml
+++ b/res/values/menu_keys.xml
@@ -17,6 +17,7 @@
 <resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
 
     <string name="menu_key_network" translatable="false">top_level_network</string>
+    <string name="menu_key_communal" translatable="false">top_level_communal</string>
     <string name="menu_key_connected_devices" translatable="false">top_level_connected_devices</string>
     <string name="menu_key_apps" translatable="false">top_level_apps</string>
     <string name="menu_key_notifications" translatable="false">top_level_notifications</string>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index b7f4cbd..1b0dd36 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -4019,6 +4019,12 @@
     <!-- Phone info screen, section titles: -->
     <string name="battery_level_title">Battery level</string>
 
+    <!-- Communal Settings -->
+    <!-- Title of the communal settings under Settings > Communal [CHAR LIMIT=30] -->
+    <string name="communal_settings_title">Communal</string>
+    <!-- Summary of the communal settings under Settings > Communal [CHAR LIMIT=50] -->
+    <string name="communal_settings_summary">Communal settings</string>
+
     <!-- APN Settings -->
     <!-- APN settings screen title -->
     <string name="apn_settings">APNs</string>
diff --git a/res/xml/communal_settings.xml b/res/xml/communal_settings.xml
new file mode 100644
index 0000000..1a7938f
--- /dev/null
+++ b/res/xml/communal_settings.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2022 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.
+-->
+
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="communal_preference_screen"
+    android:title="@string/communal_settings_title" />
diff --git a/res/xml/display_settings.xml b/res/xml/display_settings.xml
index 1b5e6c0..ad5236e 100644
--- a/res/xml/display_settings.xml
+++ b/res/xml/display_settings.xml
@@ -146,7 +146,8 @@
             android:key="screensaver"
             android:title="@string/screensaver_settings_title"
             android:fragment="com.android.settings.dream.DreamSettings"
-            settings:keywords="@string/keywords_screensaver"/>
+            settings:keywords="@string/keywords_screensaver"
+            settings:controller="com.android.settings.display.ScreenSaverPreferenceController"/>
 
         <SwitchPreference
             android:key="camera_gesture"
diff --git a/res/xml/top_level_settings.xml b/res/xml/top_level_settings.xml
index 5fbc735..8c82b67 100644
--- a/res/xml/top_level_settings.xml
+++ b/res/xml/top_level_settings.xml
@@ -31,6 +31,16 @@
         settings:controller="com.android.settings.network.TopLevelNetworkEntryPreferenceController"/>
 
     <com.android.settings.widget.HomepagePreference
+        android:fragment="com.android.settings.communal.CommunalDashboardFragment"
+        android:icon="@drawable/ia_settings_communal"
+        android:key="top_level_communal"
+        android:order="-145"
+        android:title="@string/communal_settings_title"
+        android:summary="@string/communal_settings_summary"
+        settings:highlightableMenuKey="@string/menu_key_communal"
+        settings:controller="com.android.settings.communal.CommunalPreferenceController"/>
+
+    <com.android.settings.widget.HomepagePreference
         android:fragment="com.android.settings.connecteddevice.ConnectedDeviceDashboardFragment"
         android:icon="@drawable/ic_devices_other"
         android:key="top_level_connected_devices"
diff --git a/src/com/android/settings/DisplaySettings.java b/src/com/android/settings/DisplaySettings.java
index 9a62412..97b9aae 100644
--- a/src/com/android/settings/DisplaySettings.java
+++ b/src/com/android/settings/DisplaySettings.java
@@ -24,7 +24,6 @@
 import com.android.settings.display.BrightnessLevelPreferenceController;
 import com.android.settings.display.CameraGesturePreferenceController;
 import com.android.settings.display.LiftToWakePreferenceController;
-import com.android.settings.display.ScreenSaverPreferenceController;
 import com.android.settings.display.ShowOperatorNamePreferenceController;
 import com.android.settings.display.TapToWakePreferenceController;
 import com.android.settings.display.ThemePreferenceController;
@@ -76,7 +75,6 @@
         final List<AbstractPreferenceController> controllers = new ArrayList<>();
         controllers.add(new CameraGesturePreferenceController(context));
         controllers.add(new LiftToWakePreferenceController(context));
-        controllers.add(new ScreenSaverPreferenceController(context));
         controllers.add(new TapToWakePreferenceController(context));
         controllers.add(new VrDisplayPreferenceController(context));
         controllers.add(new ShowOperatorNamePreferenceController(context));
diff --git a/src/com/android/settings/communal/CommunalDashboardFragment.java b/src/com/android/settings/communal/CommunalDashboardFragment.java
new file mode 100644
index 0000000..64f87b5
--- /dev/null
+++ b/src/com/android/settings/communal/CommunalDashboardFragment.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2022 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.settings.communal;
+
+import android.app.settings.SettingsEnums;
+
+import com.android.settings.R;
+import com.android.settings.dashboard.DashboardFragment;
+
+/**
+ * Dashboard fragment for the top-level Communal settings.
+ */
+public class CommunalDashboardFragment extends DashboardFragment {
+    private static final String TAG = "CommunalFragment";
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.COMMUNAL_MODE_SETTINGS;
+    }
+
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.communal_settings;
+    }
+
+    @Override
+    protected String getLogTag() {
+        return TAG;
+    }
+}
diff --git a/src/com/android/settings/communal/CommunalPreferenceController.java b/src/com/android/settings/communal/CommunalPreferenceController.java
new file mode 100644
index 0000000..e16dcc3
--- /dev/null
+++ b/src/com/android/settings/communal/CommunalPreferenceController.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2022 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.settings.communal;
+
+import android.content.Context;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+
+/**
+ * Controls the top-level Communal settings preference.
+ */
+public class CommunalPreferenceController extends BasePreferenceController {
+    public CommunalPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return mContext.getResources().getBoolean(R.bool.config_show_communal_settings)
+                ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+    }
+}
diff --git a/src/com/android/settings/dashboard/DashboardFragmentRegistry.java b/src/com/android/settings/dashboard/DashboardFragmentRegistry.java
index c2b5198..3c750b1 100644
--- a/src/com/android/settings/dashboard/DashboardFragmentRegistry.java
+++ b/src/com/android/settings/dashboard/DashboardFragmentRegistry.java
@@ -23,6 +23,7 @@
 import com.android.settings.accounts.AccountDashboardFragment;
 import com.android.settings.accounts.AccountDetailDashboardFragment;
 import com.android.settings.applications.AppDashboardFragment;
+import com.android.settings.communal.CommunalDashboardFragment;
 import com.android.settings.connecteddevice.AdvancedConnectedDeviceDashboardFragment;
 import com.android.settings.connecteddevice.ConnectedDeviceDashboardFragment;
 import com.android.settings.development.DevelopmentSettingsDashboardFragment;
@@ -125,6 +126,8 @@
                 CategoryKey.CATEGORY_BATTERY_SAVER_SETTINGS);
         PARENT_TO_CATEGORY_KEY_MAP.put(SmartBatterySettings.class.getName(),
                 CategoryKey.CATEGORY_SMART_BATTERY_SETTINGS);
+        PARENT_TO_CATEGORY_KEY_MAP.put(CommunalDashboardFragment.class.getName(),
+                CategoryKey.CATEGORY_COMMUNAL_SETTINGS);
 
         CATEGORY_KEY_TO_PARENT_MAP = new ArrayMap<>(PARENT_TO_CATEGORY_KEY_MAP.size());
 
diff --git a/src/com/android/settings/display/ScreenSaverPreferenceController.java b/src/com/android/settings/display/ScreenSaverPreferenceController.java
index d6fef11..db4bc37 100644
--- a/src/com/android/settings/display/ScreenSaverPreferenceController.java
+++ b/src/com/android/settings/display/ScreenSaverPreferenceController.java
@@ -16,47 +16,41 @@
 import android.content.Context;
 import android.os.UserManager;
 
-import androidx.preference.Preference;
-
 import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
 import com.android.settings.core.PreferenceControllerMixin;
 import com.android.settings.dream.DreamSettings;
-import com.android.settingslib.core.AbstractPreferenceController;
 
-public class ScreenSaverPreferenceController extends AbstractPreferenceController implements
+public class ScreenSaverPreferenceController extends BasePreferenceController implements
         PreferenceControllerMixin {
 
-    private static final String KEY_SCREEN_SAVER = "screensaver";
     private final boolean mDreamsDisabledByAmbientModeSuppression;
 
-    public ScreenSaverPreferenceController(Context context) {
-        super(context);
+    public ScreenSaverPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+
         mDreamsDisabledByAmbientModeSuppression = context.getResources().getBoolean(
                 com.android.internal.R.bool.config_dreamsDisabledByAmbientModeSuppressionConfig);
     }
 
     @Override
-    public boolean isAvailable() {
+    public int getAvailabilityStatus() {
         final boolean dreamsSupported = mContext.getResources().getBoolean(
                 com.android.internal.R.bool.config_dreamsSupported);
         final boolean dreamsOnlyEnabledForDockUser = mContext.getResources().getBoolean(
                 com.android.internal.R.bool.config_dreamsOnlyEnabledForDockUser);
         // TODO(b/257333623): Allow the Dock User to be non-SystemUser user in HSUM.
-        return dreamsSupported && (!dreamsOnlyEnabledForDockUser || isSystemUser());
+        return (dreamsSupported && (!dreamsOnlyEnabledForDockUser || isSystemUser()))
+                ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
     }
 
     @Override
-    public String getPreferenceKey() {
-        return KEY_SCREEN_SAVER;
-    }
-
-    @Override
-    public void updateState(Preference preference) {
+    public CharSequence getSummary() {
         if (mDreamsDisabledByAmbientModeSuppression
                 && AmbientDisplayAlwaysOnPreferenceController.isAodSuppressedByBedtime(mContext)) {
-            preference.setSummary(R.string.screensaver_settings_when_to_dream_bedtime);
+            return mContext.getString(R.string.screensaver_settings_when_to_dream_bedtime);
         } else {
-            preference.setSummary(DreamSettings.getSummaryTextWithDreamName(mContext));
+            return DreamSettings.getSummaryTextWithDreamName(mContext);
         }
     }
 
diff --git a/tests/unit/src/com/android/settings/display/ScreenSaverPreferenceControllerTest.java b/tests/unit/src/com/android/settings/display/ScreenSaverPreferenceControllerTest.java
index 484138e..180ea90 100644
--- a/tests/unit/src/com/android/settings/display/ScreenSaverPreferenceControllerTest.java
+++ b/tests/unit/src/com/android/settings/display/ScreenSaverPreferenceControllerTest.java
@@ -45,11 +45,13 @@
 
     private ScreenSaverPreferenceController mController;
 
+    private final String mPrefKey = "test_screensaver";
+
     @Before
     public void setup() {
         MockitoAnnotations.initMocks(this);
 
-        mController = new ScreenSaverPreferenceController(mContext);
+        mController = new ScreenSaverPreferenceController(mContext, mPrefKey);
 
         when(mContext.getResources()).thenReturn(mResources);
         when(mContext.getSystemService(UserManager.class)).thenReturn(mUserManager);