1 /* <lambda>null2 * Copyright (C) 2020 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 @file:Suppress("DEPRECATION") 17 18 package com.android.permissioncontroller.permission.data 19 20 import android.app.Application 21 import android.content.pm.PackageManager.GET_PERMISSIONS 22 import android.content.pm.PackageManager.MATCH_FACTORY_ONLY 23 import android.content.pm.PackageManager.MATCH_UNINSTALLED_PACKAGES 24 import android.os.UserHandle 25 import com.android.permissioncontroller.PermissionControllerApplication 26 import com.android.permissioncontroller.permission.model.livedatatypes.LightPackageInfo 27 import kotlinx.coroutines.Job 28 29 /** 30 * A LiveData which returns all of the preinstalled packageinfos. For packages that are preinstalled 31 * and then updated, the preinstalled (i.e. old) version is returned. 32 * 33 * @param app The current application 34 * @param user The user whose packages are desired 35 */ 36 class PreinstalledUserPackageInfosLiveData private constructor( 37 private val app: Application, 38 private val user: UserHandle 39 ) : SmartAsyncMediatorLiveData<@kotlin.jvm.JvmSuppressWildcards List<LightPackageInfo>>( 40 isStaticVal = true, alwaysUpdateOnActive = false 41 ) { 42 43 /** 44 * Get all of the preinstalled packages in the system for this user 45 */ 46 override suspend fun loadDataAndPostValue(job: Job) { 47 if (job.isCancelled) { 48 return 49 } 50 val packageInfos = app.applicationContext.packageManager 51 .getInstalledPackagesAsUser(GET_PERMISSIONS or MATCH_UNINSTALLED_PACKAGES 52 or MATCH_FACTORY_ONLY, user.identifier) 53 postValue(packageInfos.map { packageInfo -> LightPackageInfo(packageInfo) }) 54 } 55 56 override fun onActive() { 57 super.onActive() 58 59 // Data never changes, hence no need to reload 60 if (value == null) { 61 updateAsync() 62 } 63 } 64 65 /** 66 * Repository for PreinstalledUserPackageInfosLiveData. 67 * 68 * <p>Key value is a UserHandle, value is its corresponding LiveData. 69 */ 70 companion object : DataRepository<UserHandle, PreinstalledUserPackageInfosLiveData>() { 71 override fun newValue(key: UserHandle): PreinstalledUserPackageInfosLiveData { 72 return PreinstalledUserPackageInfosLiveData(PermissionControllerApplication.get(), key) 73 } 74 } 75 } 76