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.security; 18 19 import android.content.Context; 20 import android.os.UserManager; 21 import android.support.v7.preference.Preference; 22 import android.text.TextUtils; 23 24 import com.android.internal.widget.LockPatternUtils; 25 import com.android.settings.R; 26 import com.android.settings.core.BasePreferenceController; 27 28 public class EncryptionStatusPreferenceController extends BasePreferenceController { 29 30 31 static final String PREF_KEY_ENCRYPTION_DETAIL_PAGE = 32 "encryption_and_credentials_encryption_status"; 33 static final String PREF_KEY_ENCRYPTION_SECURITY_PAGE = "encryption_and_credential"; 34 35 private final UserManager mUserManager; 36 EncryptionStatusPreferenceController(Context context, String key)37 public EncryptionStatusPreferenceController(Context context, String key) { 38 super(context, key); 39 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 40 } 41 42 @Override getAvailabilityStatus()43 public int getAvailabilityStatus() { 44 if (TextUtils.equals(getPreferenceKey(), PREF_KEY_ENCRYPTION_DETAIL_PAGE) && 45 !mContext.getResources().getBoolean( 46 R.bool.config_show_encryption_and_credentials_encryption_status)) { 47 return UNSUPPORTED_ON_DEVICE; 48 } 49 50 return mUserManager.isAdminUser() ? AVAILABLE : DISABLED_FOR_USER; 51 } 52 53 @Override updateState(Preference preference)54 public void updateState(Preference preference) { 55 final boolean encryptionEnabled = LockPatternUtils.isDeviceEncryptionEnabled(); 56 if (encryptionEnabled) { 57 if (TextUtils.equals(getPreferenceKey(), PREF_KEY_ENCRYPTION_DETAIL_PAGE)) { 58 preference.setFragment(null); 59 } 60 preference.setSummary(R.string.crypt_keeper_encrypted_summary); 61 } else { 62 if (TextUtils.equals(getPreferenceKey(), PREF_KEY_ENCRYPTION_DETAIL_PAGE)) { 63 preference.setFragment(CryptKeeperSettings.class.getName()); 64 } 65 preference.setSummary(R.string.decryption_settings_summary); 66 } 67 68 } 69 } 70