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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.os.UserHandle
21 import android.view.inputmethod.InputMethodInfo
22 import android.view.inputmethod.InputMethodManager
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 enabled input method packages
29  *
30  * @param app The current application
31  * @param user The user the services should be determined for
32  */
33 class EnabledInputMethodsLiveData(
34     private val app: Application,
35     private val user: UserHandle
36 ) : SmartAsyncMediatorLiveData<List<String>>() {
37 
38     override suspend fun loadDataAndPostValue(job: Job) {
39         if (job.isCancelled) {
40             return
41         }
42 
43         val packageNames = Utils.getUserContext(app, user)
44                 .getSystemService(InputMethodManager::class.java)!!
45                 .enabledInputMethodList
46                 .map { info: InputMethodInfo ->
47                     info.component.packageName
48                 }
49 
50         postValue(packageNames)
51     }
52 
53     /**
54      * Repository for [EnabledInputMethodsLiveData]
55      *
56      * <p> Key value is a user, value is its corresponding LiveData.
57      */
58     companion object : DataRepositoryForPackage<UserHandle,
59             EnabledInputMethodsLiveData>() {
60         override fun newValue(key: UserHandle): EnabledInputMethodsLiveData {
61             return EnabledInputMethodsLiveData(PermissionControllerApplication.get(), key)
62         }
63     }
64 }