1 /*
2  * Copyright (C) 2022 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.settingslib.spa.framework.common
18 
19 import androidx.lifecycle.LiveData
20 import androidx.slice.Slice
21 import kotlinx.coroutines.CoroutineScope
22 import kotlinx.coroutines.Dispatchers
23 import kotlinx.coroutines.Job
24 import kotlinx.coroutines.launch
25 
26 open class EntrySliceData : LiveData<Slice?>() {
27     private val asyncRunnerScope = CoroutineScope(Dispatchers.IO)
28     private var asyncRunnerJob: Job? = null
29     private var asyncActionJob: Job? = null
30     private var isActive = false
31 
asyncRunnernull32     open suspend fun asyncRunner() {}
33 
asyncActionnull34     open suspend fun asyncAction() {}
35 
onActivenull36     override fun onActive() {
37         asyncRunnerJob?.cancel()
38         asyncRunnerJob = asyncRunnerScope.launch { asyncRunner() }
39         isActive = true
40     }
41 
onInactivenull42     override fun onInactive() {
43         asyncRunnerJob?.cancel()
44         asyncRunnerJob = null
45         asyncActionJob?.cancel()
46         asyncActionJob = null
47         isActive = false
48     }
49 
isActivenull50     fun isActive(): Boolean {
51         return isActive
52     }
53 
doActionnull54     fun doAction() {
55         asyncActionJob?.cancel()
56         asyncActionJob = asyncRunnerScope.launch { asyncAction() }
57     }
58 }
59