Enterprice privacy: let the user know if admin enabled backups.

Bug: 73750212
Bug: 64012357
Test: make RunSettingsGoogleRoboTests

Change-Id: I586eaccaebb89a8b3e5b4014b3d6427ab2eb15a9

src/com/android/settings/enterprise/BackupsEnabledPreferenceController.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2018 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.enterprise;
+
+import android.content.Context;
+
+import com.android.settings.core.BasePreferenceController;
+import com.android.settings.overlay.FeatureFactory;
+
+public class BackupsEnabledPreferenceController extends BasePreferenceController {
+
+    private static final String KEY_BACKUPS_ENABLED = "backups_enabled";
+    private final EnterprisePrivacyFeatureProvider mFeatureProvider;
+
+    public BackupsEnabledPreferenceController(Context context) {
+        super(context, KEY_BACKUPS_ENABLED);
+        mFeatureProvider = FeatureFactory.getFactory(context)
+                .getEnterprisePrivacyFeatureProvider(context);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return mFeatureProvider.areBackupsMandatory() ? AVAILABLE : DISABLED_FOR_USER;
+    }
+}
+

src/com/android/settings/enterprise/EnterprisePrivacyFeatureProvider.java

@@ -124,4 +124,9 @@ public interface EnterprisePrivacyFeatureProvider {
      * profile (if any).
      */
     int getNumberOfActiveDeviceAdminsForCurrentUserAndManagedProfile();
+
+    /*
+     * Returns whether backups are mandatory.
+     */
+    boolean areBackupsMandatory();
 }

src/com/android/settings/enterprise/EnterprisePrivacyFeatureProviderImpl.java

@@ -235,6 +235,11 @@ public class EnterprisePrivacyFeatureProviderImpl implements EnterprisePrivacyFe
         return activeAdmins;
     }
 
+    @Override
+    public boolean areBackupsMandatory() {
+        return null != mDpm.getMandatoryBackupTransport();
+    }
+
     protected static class EnterprisePrivacySpan extends ClickableSpan {
         private final Context mContext;
 

src/com/android/settings/enterprise/EnterprisePrivacySettings.java

@@ -82,6 +82,7 @@ public class EnterprisePrivacySettings extends DashboardFragment {
         exposureChangesCategoryControllers.add(new CaCertsCurrentUserPreferenceController(context));
         exposureChangesCategoryControllers.add(new CaCertsManagedProfilePreferenceController(
                 context));
+        exposureChangesCategoryControllers.add(new BackupsEnabledPreferenceController(context));
         controllers.addAll(exposureChangesCategoryControllers);
         controllers.add(new PreferenceCategoryController(context, "exposure_changes_category")
                 .setChildren(exposureChangesCategoryControllers));