1 /*
2  * Copyright (C) 2023 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.systemui.qs.tiles.impl.saver.domain.interactor
18 
19 import android.os.UserHandle
20 import com.android.systemui.common.coroutine.ConflatedCallbackFlow
21 import com.android.systemui.qs.tiles.base.interactor.DataUpdateTrigger
22 import com.android.systemui.qs.tiles.base.interactor.QSTileDataInteractor
23 import com.android.systemui.qs.tiles.impl.saver.domain.model.DataSaverTileModel
24 import com.android.systemui.statusbar.policy.DataSaverController
25 import javax.inject.Inject
26 import kotlinx.coroutines.channels.awaitClose
27 import kotlinx.coroutines.flow.Flow
28 import kotlinx.coroutines.flow.flowOf
29 
30 /** Observes data saver state changes providing the [DataSaverTileModel]. */
31 class DataSaverTileDataInteractor
32 @Inject
33 constructor(
34     private val dataSaverController: DataSaverController,
35 ) : QSTileDataInteractor<DataSaverTileModel> {
36 
tileDatanull37     override fun tileData(
38         user: UserHandle,
39         triggers: Flow<DataUpdateTrigger>
40     ): Flow<DataSaverTileModel> =
41         ConflatedCallbackFlow.conflatedCallbackFlow {
42             val initialValue = dataSaverController.isDataSaverEnabled
43             trySend(DataSaverTileModel(initialValue))
44 
45             val callback = DataSaverController.Listener { trySend(DataSaverTileModel(it)) }
46 
47             dataSaverController.addCallback(callback)
48             awaitClose { dataSaverController.removeCallback(callback) }
49         }
50 
availabilitynull51     override fun availability(user: UserHandle): Flow<Boolean> = flowOf(true)
52 }
53