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.Application
20 import android.os.UserHandle
21 import android.view.autofill.AutofillManager
22 import com.android.permissioncontroller.PermissionControllerApplication
23 import com.android.permissioncontroller.permission.utils.Utils
24 import kotlinx.coroutines.Job
25 
26 /**
27  * A LiveData which tracks selected autofill service package
28  *
29  * @param app The current application
30  * @param user The user the services should be determined for
31  */
32 class SelectedAutofillServiceLiveData(private val app: Application, private val user: UserHandle) :
33     SmartAsyncMediatorLiveData<String?>() {
34 
loadDataAndPostValuenull35     override suspend fun loadDataAndPostValue(job: Job) {
36         if (job.isCancelled) {
37             return
38         }
39 
40         val packageName =
41             Utils.getUserContext(app, user)
42                 .getSystemService(AutofillManager::class.java)
43                 ?.autofillServiceComponentName
44                 ?.packageName
45 
46         postValue(packageName)
47     }
48 
49     /**
50      * Repository for [SelectedAutofillServiceLiveData]
51      *
52      * <p> Key value is a user, value is its corresponding LiveData.
53      */
54     companion object : DataRepositoryForPackage<UserHandle, SelectedAutofillServiceLiveData>() {
newValuenull55         override fun newValue(key: UserHandle): SelectedAutofillServiceLiveData {
56             return SelectedAutofillServiceLiveData(PermissionControllerApplication.get(), key)
57         }
58     }
59 }
60