1 /* 2 * 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 17 package com.android.permissioncontroller.permission.data 18 19 import android.app.AppOpsManager 20 import android.app.Application 21 import com.android.permissioncontroller.PermissionControllerApplication 22 23 /** 24 * A LiveData which represents the appop state 25 * 26 * @param app The current application 27 * @param packageName The name of the package 28 * @param op The name of the appop 29 * @param uid The uid of the package 30 * 31 * @see AppOpsManager 32 */ 33 // TODO eugenesusla: observe appops 34 // TODO eugenesusla: use for external storage 35 class AppOpLiveData private constructor( 36 private val app: Application, 37 private val packageName: String, 38 private val op: String, 39 private val uid: Int 40 ) : SmartUpdateMediatorLiveData<Int>() { 41 42 private val appOpsManager = app.getSystemService(AppOpsManager::class.java)!! 43 onUpdatenull44 override fun onUpdate() { 45 value = appOpsManager.unsafeCheckOpNoThrow(op, uid, packageName) 46 } 47 onActivenull48 override fun onActive() { 49 super.onActive() 50 update() 51 } 52 53 /** 54 * Repository for AppOpLiveData. 55 * <p> Key value is a triple of string package name, string appop, and 56 * package uid, value is its corresponding LiveData. 57 */ 58 companion object : DataRepository<Triple<String, String, Int>, AppOpLiveData>() { newValuenull59 override fun newValue(key: Triple<String, String, Int>): AppOpLiveData { 60 return AppOpLiveData(PermissionControllerApplication.get(), 61 key.first, key.second, key.third) 62 } 63 } 64 }