Add warning message when camera privacy lock is enabled for screen attention settings

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

Bug: 177462182
Change-Id: I9880d6b82e9a5040534aceda4ff15275e0bcf72a

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

@@ -0,0 +1,75 @@
+/*
+ * 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 android.content.Context;
+import android.hardware.SensorPrivacyManager;
+
+import androidx.preference.PreferenceScreen;
+
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.settings.R;
+import com.android.settingslib.widget.BannerMessagePreference;
+
+/**
+ * The controller of Screen attention's camera disabled warning preference.
+ * The preference appears when the camera access is disabled for Screen Attention feature.
+ */
+public class AdaptiveSleepCameraStatePreferenceController {
+    @VisibleForTesting
+    final BannerMessagePreference mPreference;
+    private final SensorPrivacyManager mPrivacyManager;
+
+    public AdaptiveSleepCameraStatePreferenceController(Context context) {
+        mPreference = new BannerMessagePreference(context);
+        mPreference.setTitle(R.string.auto_rotate_camera_lock_title);
+        mPreference.setSummary(R.string.adaptive_sleep_camera_lock_summary);
+        mPreference.setPositiveButtonText(R.string.allow);
+        mPrivacyManager = SensorPrivacyManager.getInstance(context);
+        mPrivacyManager.addSensorPrivacyListener(CAMERA,
+                enabled -> updateVisibility());
+        mPreference.setPositiveButtonOnClickListener(p -> {
+            mPrivacyManager.setSensorPrivacy(CAMERA, false);
+        });
+    }
+
+    /**
+     * Adds the controlled preference to the provided preference screen.
+     */
+    public void addToScreen(PreferenceScreen screen) {
+        screen.addPreference(mPreference);
+        updateVisibility();
+    }
+
+    /**
+     * 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(CAMERA);
+    }
+
+    /**
+     * Refreshes the visibility of the preference.
+     */
+    public void updateVisibility() {
+        mPreference.setVisible(isCameraLocked());
+    }
+}

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

@@ -16,6 +16,8 @@
 
 package com.android.settings.display;
 
+import static android.hardware.SensorPrivacyManager.Sensors.CAMERA;
+
 import static com.android.settings.core.BasePreferenceController.AVAILABLE_UNSEARCHABLE;
 import static com.android.settings.core.BasePreferenceController.UNSUPPORTED_ON_DEVICE;
 
@@ -25,6 +27,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
+import android.hardware.SensorPrivacyManager;
 import android.os.UserManager;
 import android.provider.Settings;
 import android.service.attention.AttentionService;
@@ -45,6 +48,7 @@ import com.google.common.annotations.VisibleForTesting;
 public class AdaptiveSleepPreferenceController {
     public static final String PREFERENCE_KEY = "adaptive_sleep";
     private static final int DEFAULT_VALUE = 0;
+    private final SensorPrivacyManager mPrivacyManager;
     private RestrictionUtils mRestrictionUtils;
     private PackageManager mPackageManager;
     private Context mContext;
@@ -57,6 +61,7 @@ public class AdaptiveSleepPreferenceController {
         mContext = context;
         mRestrictionUtils = restrictionUtils;
         mMetricsFeatureProvider = FeatureFactory.getFactory(context).getMetricsFeatureProvider();
+        mPrivacyManager = SensorPrivacyManager.getInstance(context);
         mPreference = new RestrictedSwitchPreference(context);
         mPreference.setTitle(R.string.adaptive_sleep_title);
         mPreference.setSummary(R.string.adaptive_sleep_description);
@@ -94,17 +99,27 @@ public class AdaptiveSleepPreferenceController {
         if (enforcedAdmin != null) {
             mPreference.setDisabledByAdmin(enforcedAdmin);
         } else {
-            mPreference.setEnabled(hasSufficientPermission(mPackageManager));
+            mPreference.setEnabled(hasSufficientPermission(mPackageManager) && !isCameraLocked());
         }
     }
 
     @VisibleForTesting
     boolean isChecked() {
-        return hasSufficientPermission(mContext.getPackageManager()) && Settings.Secure.getInt(
-                mContext.getContentResolver(), Settings.Secure.ADAPTIVE_SLEEP, DEFAULT_VALUE)
+        return hasSufficientPermission(mContext.getPackageManager()) && !isCameraLocked()
+                && Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ADAPTIVE_SLEEP, DEFAULT_VALUE)
                 != DEFAULT_VALUE;
     }
 
+    /**
+     * 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(CAMERA);
+    }
+
     public static int isControllerAvailable(Context context) {
         return context.getResources().getBoolean(
                 com.android.internal.R.bool.config_adaptive_sleep_available)

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

@@ -16,6 +16,7 @@
 
 package com.android.settings.display;
 
+import static android.hardware.SensorPrivacyManager.Sensors.CAMERA;
 import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT;
 
 import android.app.admin.DevicePolicyManager;
@@ -23,6 +24,7 @@ import android.app.settings.SettingsEnums;
 import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.drawable.Drawable;
+import android.hardware.SensorPrivacyManager;
 import android.os.UserHandle;
 import android.provider.Settings;
 import android.text.SpannableString;
@@ -70,6 +72,7 @@ public class ScreenTimeoutSettings extends RadioButtonPickerFragment implements
     private CharSequence[] mInitialValues;
     private FooterPreference mPrivacyPreference;
     private MetricsFeatureProvider mMetricsFeatureProvider;
+    private SensorPrivacyManager mPrivacyManager;
 
     @VisibleForTesting
     RestrictedLockUtils.EnforcedAdmin mAdmin;
@@ -79,6 +82,9 @@ public class ScreenTimeoutSettings extends RadioButtonPickerFragment implements
     @VisibleForTesting
     AdaptiveSleepPermissionPreferenceController mAdaptiveSleepPermissionController;
 
+    @VisibleForTesting
+    AdaptiveSleepCameraStatePreferenceController mAdaptiveSleepCameraStatePreferenceController;
+
     @VisibleForTesting
     AdaptiveSleepPreferenceController mAdaptiveSleepController;
 
@@ -96,11 +102,18 @@ public class ScreenTimeoutSettings extends RadioButtonPickerFragment implements
         mAdaptiveSleepController = new AdaptiveSleepPreferenceController(context);
         mAdaptiveSleepPermissionController = new AdaptiveSleepPermissionPreferenceController(
                 context);
+        mAdaptiveSleepCameraStatePreferenceController =
+                new AdaptiveSleepCameraStatePreferenceController(context);
         mPrivacyPreference = new FooterPreference(context);
         mPrivacyPreference.setIcon(R.drawable.ic_privacy_shield_24dp);
         mPrivacyPreference.setTitle(R.string.adaptive_sleep_privacy);
         mPrivacyPreference.setSelectable(false);
         mPrivacyPreference.setLayoutResource(R.layout.preference_footer);
+        mPrivacyManager = SensorPrivacyManager.getInstance(context);
+        mPrivacyManager.addSensorPrivacyListener(CAMERA,
+                enabled -> {
+                    mAdaptiveSleepController.updatePreference();
+                });
     }
 
     @Override
@@ -124,6 +137,7 @@ public class ScreenTimeoutSettings extends RadioButtonPickerFragment implements
     public void onStart() {
         super.onStart();
         mAdaptiveSleepPermissionController.updateVisibility();
+        mAdaptiveSleepCameraStatePreferenceController.updateVisibility();
         mAdaptiveSleepController.updatePreference();
     }
 
@@ -147,6 +161,7 @@ public class ScreenTimeoutSettings extends RadioButtonPickerFragment implements
 
         if (isScreenAttentionAvailable(getContext())) {
             mAdaptiveSleepPermissionController.addToScreen(screen);
+            mAdaptiveSleepCameraStatePreferenceController.addToScreen(screen);
             mAdaptiveSleepController.addToScreen(screen);
             screen.addPreference(mPrivacyPreference);
         }
@@ -165,7 +180,7 @@ public class ScreenTimeoutSettings extends RadioButtonPickerFragment implements
 
         final SpannableString spannableString = new SpannableString(
                 textDisabledByAdmin + System.lineSeparator()
-                + System.lineSeparator() + textMoreDetails);
+                        + System.lineSeparator() + textMoreDetails);
         final ClickableSpan clickableSpan = new ClickableSpan() {
             @Override
             public void onClick(@NonNull View widget) {