1 /* 2 * Copyright (C) 2019 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.car.settings.security; 18 19 import static android.os.UserManager.DISALLOW_BLUETOOTH; 20 import static android.os.UserManager.DISALLOW_CONFIG_BLUETOOTH; 21 22 import android.app.admin.DevicePolicyManager; 23 import android.bluetooth.BluetoothAdapter; 24 import android.car.drivingstate.CarUxRestrictions; 25 import android.car.userlib.CarUserManagerHelper; 26 import android.content.Context; 27 import android.content.pm.PackageManager; 28 29 import androidx.preference.Preference; 30 31 import com.android.car.settings.R; 32 import com.android.car.settings.common.FragmentController; 33 import com.android.car.settings.common.PreferenceController; 34 import com.android.internal.widget.LockPatternUtils; 35 36 /** 37 * Business logic which controls whether the preference is clickeble according to the password 38 * quality of current user. 39 */ 40 public class AddTrustedDevicePreferenceController extends PreferenceController<Preference> { 41 private CarUserManagerHelper mCarUserManagerHelper; 42 private LockPatternUtils mLockPatternUtils; 43 AddTrustedDevicePreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)44 public AddTrustedDevicePreferenceController(Context context, String preferenceKey, 45 FragmentController fragmentController, CarUxRestrictions uxRestrictions) { 46 super(context, preferenceKey, fragmentController, uxRestrictions); 47 mCarUserManagerHelper = new CarUserManagerHelper(context); 48 mLockPatternUtils = new LockPatternUtils(context); 49 } 50 51 @Override getAvailabilityStatus()52 protected int getAvailabilityStatus() { 53 if (!getContext().getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH)) { 54 return UNSUPPORTED_ON_DEVICE; 55 } 56 return isUserRestricted() ? DISABLED_FOR_USER : AVAILABLE; 57 } 58 isUserRestricted()59 private boolean isUserRestricted() { 60 return mCarUserManagerHelper.isCurrentProcessUserHasRestriction(DISALLOW_BLUETOOTH) 61 || mCarUserManagerHelper.isCurrentProcessUserHasRestriction( 62 DISALLOW_CONFIG_BLUETOOTH); 63 } 64 65 @Override updateState(Preference preference)66 protected void updateState(Preference preference) { 67 preference.setSummary( 68 BluetoothAdapter.getDefaultAdapter().isEnabled() ? "" : getContext().getString( 69 R.string.add_device_summary)); 70 preference.setEnabled(hasPassword()); 71 } 72 hasPassword()73 private boolean hasPassword() { 74 return mLockPatternUtils.getKeyguardStoredPasswordQuality( 75 mCarUserManagerHelper.getCurrentProcessUserId()) 76 != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 77 } 78 79 @Override getPreferenceType()80 protected Class<Preference> getPreferenceType() { 81 return Preference.class; 82 } 83 84 @Override handlePreferenceClicked(Preference preference)85 public boolean handlePreferenceClicked(Preference preference) { 86 // Enable the adapter if it is not on (user is notified via summary message). 87 BluetoothAdapter.getDefaultAdapter().enable(); 88 /** Need to start {@link AddTrustedDeviceActivity} after the click. */ 89 return false; 90 } 91 } 92