1 /* 2 * Copyright (C) 2021 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.enterprise; 18 19 import android.app.admin.DeviceAdminInfo; 20 import android.app.admin.DevicePolicyManager; 21 import android.car.drivingstate.CarUxRestrictions; 22 import android.content.ComponentName; 23 import android.content.Context; 24 import android.content.pm.PackageManager; 25 import android.os.UserManager; 26 27 import androidx.preference.Preference; 28 29 import com.android.car.settings.common.FragmentController; 30 import com.android.car.settings.common.Logger; 31 import com.android.car.settings.common.PreferenceController; 32 33 import java.util.Objects; 34 35 /** 36 * Base class for controllers in the device admin details screen. 37 */ 38 abstract class BaseDeviceAdminAddPreferenceController<P extends Preference> 39 extends PreferenceController<P> { 40 41 protected final Logger mLogger = new Logger(getClass()); 42 43 protected final DevicePolicyManager mDpm; 44 protected final PackageManager mPm; 45 protected final UserManager mUm; 46 47 protected DeviceAdminInfo mDeviceAdminInfo; 48 BaseDeviceAdminAddPreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)49 protected BaseDeviceAdminAddPreferenceController(Context context, String preferenceKey, 50 FragmentController fragmentController, CarUxRestrictions uxRestrictions) { 51 super(context, preferenceKey, fragmentController, uxRestrictions); 52 53 mDpm = context.getSystemService(DevicePolicyManager.class); 54 mPm = context.getPackageManager(); 55 mUm = context.getSystemService(UserManager.class); 56 } 57 58 @Override getPreferenceType()59 protected Class<P> getPreferenceType() { 60 return (Class<P>) Preference.class; 61 } 62 63 @Override getAvailabilityStatus()64 protected final int getAvailabilityStatus() { 65 return mDeviceAdminInfo == null ? CONDITIONALLY_UNAVAILABLE : getRealAvailabilityStatus(); 66 } 67 68 /** 69 * Method that can be overridden to define the real value of {@link #getAvailabilityStatus()} 70 * when the {@link #setDeviceAdmin(DeviceAdminInfo) DeviceAdminInfo} is set. 71 */ getRealAvailabilityStatus()72 protected int getRealAvailabilityStatus() { 73 return AVAILABLE; 74 } 75 setDeviceAdmin( DeviceAdminInfo deviceAdminInfo)76 final <T extends BaseDeviceAdminAddPreferenceController<P>> T setDeviceAdmin( 77 DeviceAdminInfo deviceAdminInfo) { 78 mDeviceAdminInfo = Objects.requireNonNull(deviceAdminInfo); 79 @SuppressWarnings("unchecked") 80 T safeCast = (T) this; 81 return safeCast; 82 } 83 isProfileOrDeviceOwner()84 final boolean isProfileOrDeviceOwner() { 85 return isProfileOrDeviceOwner(mDeviceAdminInfo.getComponent()); 86 } 87 isProfileOrDeviceOwner(ComponentName admin)88 final boolean isProfileOrDeviceOwner(ComponentName admin) { 89 return admin.equals(mDpm.getProfileOwner()) 90 || admin.equals(mDpm.getDeviceOwnerComponentOnCallingUser()); 91 } 92 } 93