Add warning message when camera privacy lock is enabled for

smart auto rotate settings fragment

Test: locally with flame, make RunSettingsRoboTests -j$(nproc)
ROBOTEST_FILTER=SmartAutoRotateCameraStateControllerTest,SmartAutoRotateControllerTest

Bug: 177462182
Change-Id: If443bd2456f3fbe76876777be912b204a50f4088

src/com/android/settings/display/SmartAutoRotateCameraStateController.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2021 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.display;
+
+import static android.hardware.SensorPrivacyManager.Sensors.CAMERA;
+
+import static com.android.settings.display.SmartAutoRotateController.isRotationResolverServiceAvailable;
+
+import android.content.Context;
+import android.hardware.SensorPrivacyManager;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.widget.BannerMessagePreference;
+
+/**
+ * The controller of camera based rotate privacy sensor warning preference. The preference appears
+ * when the privacy sensor service disables camera functionality completely.
+ */
+public class SmartAutoRotateCameraStateController extends BasePreferenceController {
+
+    private final SensorPrivacyManager mPrivacyManager;
+    private Preference mPreference;
+
+    public SmartAutoRotateCameraStateController(Context context, String key) {
+        super(context, key);
+        mPrivacyManager = SensorPrivacyManager.getInstance(context);
+        mPrivacyManager.addSensorPrivacyListener(CAMERA, enabled -> {
+            mPreference.setVisible(enabled);
+            updateState(mPreference);
+        });
+    }
+
+    @VisibleForTesting
+    boolean isCameraLocked() {
+        return mPrivacyManager.isSensorPrivacyEnabled(SensorPrivacyManager.Sensors.CAMERA);
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mPreference = screen.findPreference(getPreferenceKey());
+        ((BannerMessagePreference) mPreference)
+                .setPositiveButtonText(R.string.allow)
+                .setPositiveButtonOnClickListener(v -> {
+                    mPrivacyManager.setSensorPrivacy(CAMERA, false);
+                });
+    }
+
+    @Override
+    @AvailabilityStatus
+    public int getAvailabilityStatus() {
+        return isRotationResolverServiceAvailable(mContext)
+                && isCameraLocked() ? AVAILABLE_UNSEARCHABLE : UNSUPPORTED_ON_DEVICE;
+    }
+}

src/com/android/settings/display/SmartAutoRotateController.java

@@ -15,6 +15,7 @@
  */
 package com.android.settings.display;
 
+import static android.hardware.SensorPrivacyManager.Sensors.CAMERA;
 import static android.provider.Settings.Secure.CAMERA_AUTOROTATE;
 
 import android.Manifest;
@@ -23,12 +24,15 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
+import android.hardware.SensorPrivacyManager;
 import android.provider.Settings;
 import android.service.rotationresolver.RotationResolverService;
 import android.text.TextUtils;
 
 import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.view.RotationPolicy;
 import com.android.settings.core.TogglePreferenceController;
 import com.android.settings.overlay.FeatureFactory;
@@ -41,10 +45,14 @@ public class SmartAutoRotateController extends TogglePreferenceController implem
         Preference.OnPreferenceChangeListener {
 
     private final MetricsFeatureProvider mMetricsFeatureProvider;
+    private final SensorPrivacyManager mPrivacyManager;
+    private Preference mPreference;
 
     public SmartAutoRotateController(Context context, String preferenceKey) {
         super(context, preferenceKey);
         mMetricsFeatureProvider = FeatureFactory.getFactory(context).getMetricsFeatureProvider();
+        mPrivacyManager = SensorPrivacyManager.getInstance(context);
+        mPrivacyManager.addSensorPrivacyListener(CAMERA, enabled -> updateState(mPreference));
     }
 
     @Override
@@ -53,16 +61,39 @@ public class SmartAutoRotateController extends TogglePreferenceController implem
             return UNSUPPORTED_ON_DEVICE;
         }
         return !RotationPolicy.isRotationLocked(mContext) && hasSufficientPermission(mContext)
-                ? AVAILABLE : DISABLED_DEPENDENT_SETTING;
+                && !isCameraLocked() ? AVAILABLE : DISABLED_DEPENDENT_SETTING;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        super.updateState(preference);
+        if (preference != null) {
+            preference.setEnabled(getAvailabilityStatus() == AVAILABLE);
+        }
+    }
+
+    /**
+     * Need this because all controller tests use RoboElectric. No easy way to mock this service,
+     * so we mock the call we need
+     */
+    @VisibleForTesting
+    boolean isCameraLocked() {
+        return mPrivacyManager.isSensorPrivacyEnabled(SensorPrivacyManager.Sensors.CAMERA);
     }
 
     @Override
     public boolean isChecked() {
-        return hasSufficientPermission(mContext) && Settings.Secure.getInt(
+        return hasSufficientPermission(mContext) && !isCameraLocked() && Settings.Secure.getInt(
                 mContext.getContentResolver(),
                 CAMERA_AUTOROTATE, 0) == 1;
     }
 
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mPreference = screen.findPreference(getPreferenceKey());
+    }
+
     @Override
     public boolean setChecked(boolean isChecked) {
         mMetricsFeatureProvider.action(mContext, SettingsEnums.ACTION_CAMERA_ROTATE_TOGGLE,

src/com/android/settings/display/SmartAutoRotatePreferenceFragment.java

@@ -19,6 +19,7 @@ import static com.android.settings.display.SmartAutoRotateController.hasSufficie
 import static com.android.settings.display.SmartAutoRotateController.isRotationResolverServiceAvailable;
 
 import android.app.settings.SettingsEnums;
+import android.hardware.SensorPrivacyManager;
 import android.os.Bundle;
 import android.text.Html;
 import android.view.LayoutInflater;
@@ -47,6 +48,7 @@ public class SmartAutoRotatePreferenceFragment extends DashboardFragment {
     private static final String TAG = "SmartAutoRotatePreferenceFragment";
 
     private RotationPolicy.RotationPolicyListener mRotationPolicyListener;
+    private SensorPrivacyManager mPrivacyManager;
     private AutoRotateSwitchBarController mSwitchBarController;
     private static final String FACE_SWITCH_PREFERENCE_ID = "face_based_rotate";
 
@@ -66,6 +68,7 @@ public class SmartAutoRotatePreferenceFragment extends DashboardFragment {
         switchBar.show();
         mSwitchBarController = new AutoRotateSwitchBarController(activity, switchBar,
                 getSettingsLifecycle());
+        mPrivacyManager = SensorPrivacyManager.getInstance(activity);
         final Preference footerPreference = findPreference(FooterPreference.KEY_FOOTER);
         if (footerPreference != null) {
             footerPreference.setTitle(Html.fromHtml(getString(R.string.smart_rotate_text_headline),
@@ -84,9 +87,11 @@ public class SmartAutoRotatePreferenceFragment extends DashboardFragment {
                 public void onChange() {
                     mSwitchBarController.onChange();
                     final boolean isLocked = RotationPolicy.isRotationLocked(getContext());
+                    final boolean isCameraLocked = mPrivacyManager.isSensorPrivacyEnabled(
+                            SensorPrivacyManager.Sensors.CAMERA);
                     final Preference preference = findPreference(FACE_SWITCH_PREFERENCE_ID);
                     if (preference != null && hasSufficientPermission(getContext())) {
-                        preference.setEnabled(!isLocked);
+                        preference.setEnabled(!isLocked && !isCameraLocked);
                     }
                 }
             };