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 
17 package com.android.permissioncontroller.permission.data
18 
19 import android.app.Application
20 import android.content.ComponentName
21 import android.os.UserHandle
22 import android.provider.Settings
23 import com.android.permissioncontroller.PermissionControllerApplication
24 import com.android.permissioncontroller.permission.utils.Utils
25 import kotlinx.coroutines.Job
26 
27 /**
28  * A LiveData which tracks disabled print service packages
29  *
30  * @param app The current application
31  * @param user The user the services should be determined for
32  */
33 class DisabledPrintServicesLiveData(private val app: Application, private val user: UserHandle) :
34     SmartAsyncMediatorLiveData<List<String>>() {
35 
36     override suspend fun loadDataAndPostValue(job: Job) {
37         if (job.isCancelled) {
38             return
39         }
40 
41         val packageNames =
42             Settings.Secure.getString(Utils.getUserContext(app, user).contentResolver, SETTING)
43                 ?.split(":")
44                 ?.map { pkgOrComponent ->
45                     if ('/' in pkgOrComponent) {
46                         ComponentName.unflattenFromString(pkgOrComponent)?.packageName
47                             ?: pkgOrComponent
48                     } else {
49                         pkgOrComponent
50                     }
51                 }
52                 ?: emptyList()
53 
54         postValue(packageNames)
55     }
56 
57     /**
58      * Repository for [DisabledPrintServicesLiveData]
59      *
60      * <p> Key value is a user, value is its corresponding LiveData.
61      */
62     companion object : DataRepositoryForPackage<UserHandle, DisabledPrintServicesLiveData>() {
63         /* Settings.Secure.DISABLED_PRINT_SERVICES */
64         private const val SETTING = "disabled_print_services"
65 
66         override fun newValue(key: UserHandle): DisabledPrintServicesLiveData {
67             return DisabledPrintServicesLiveData(PermissionControllerApplication.get(), key)
68         }
69     }
70 }
71