1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.development; 18 19 import android.app.backup.IBackupManager; 20 import android.content.Context; 21 import android.os.RemoteException; 22 import android.os.ServiceManager; 23 import android.os.UserManager; 24 25 import androidx.annotation.VisibleForTesting; 26 import androidx.preference.Preference; 27 28 import com.android.settings.R; 29 import com.android.settings.core.PreferenceControllerMixin; 30 import com.android.settingslib.development.DeveloperOptionsPreferenceController; 31 32 public class LocalBackupPasswordPreferenceController extends DeveloperOptionsPreferenceController 33 implements PreferenceControllerMixin { 34 35 private static final String LOCAL_BACKUP_PASSWORD = "local_backup_password"; 36 37 private final UserManager mUserManager; 38 private final IBackupManager mBackupManager; 39 LocalBackupPasswordPreferenceController(Context context)40 public LocalBackupPasswordPreferenceController(Context context) { 41 super(context); 42 43 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 44 mBackupManager = IBackupManager.Stub.asInterface( 45 ServiceManager.getService(Context.BACKUP_SERVICE)); 46 } 47 48 @Override getPreferenceKey()49 public String getPreferenceKey() { 50 return LOCAL_BACKUP_PASSWORD; 51 } 52 53 @Override updateState(Preference preference)54 public void updateState(Preference preference) { 55 updatePasswordSummary(preference); 56 } 57 updatePasswordSummary(Preference preference)58 private void updatePasswordSummary(Preference preference) { 59 preference.setEnabled(isAdminUser() && mBackupManager != null); 60 if (mBackupManager == null) { 61 return; 62 } 63 try { 64 if (mBackupManager.hasBackupPassword()) { 65 preference.setSummary(R.string.local_backup_password_summary_change); 66 } else { 67 preference.setSummary(R.string.local_backup_password_summary_none); 68 } 69 } catch (RemoteException e) { 70 // Not much we can do here 71 } 72 } 73 74 @VisibleForTesting isAdminUser()75 boolean isAdminUser() { 76 return mUserManager.isAdminUser(); 77 } 78 } 79