| /* |
| * Copyright (C) 2022 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.systemui.qs.footer.data.repository |
| |
| import com.android.systemui.common.coroutine.ChannelExt.trySendWithFailureLogging |
| import com.android.systemui.common.coroutine.ConflatedCallbackFlow.conflatedCallbackFlow |
| import com.android.systemui.dagger.SysUISingleton |
| import com.android.systemui.qs.FgsManagerController |
| import javax.inject.Inject |
| import kotlinx.coroutines.channels.awaitClose |
| import kotlinx.coroutines.flow.Flow |
| import kotlinx.coroutines.flow.distinctUntilChanged |
| import kotlinx.coroutines.flow.flatMapLatest |
| import kotlinx.coroutines.flow.flowOf |
| import kotlinx.coroutines.flow.map |
| import kotlinx.coroutines.flow.merge |
| |
| interface ForegroundServicesRepository { |
| /** |
| * The number of packages with a service running in the foreground. |
| * |
| * Note that this will be equal to 0 if [FgsManagerController.isAvailable] is false. |
| */ |
| val foregroundServicesCount: Flow<Int> |
| |
| /** |
| * Whether there were new changes to the foreground packages since a dialog was last shown. |
| * |
| * Note that this will be equal to `false` if [FgsManagerController.showFooterDot] is false. |
| */ |
| val hasNewChanges: Flow<Boolean> |
| } |
| |
| @SysUISingleton |
| class ForegroundServicesRepositoryImpl |
| @Inject |
| constructor( |
| fgsManagerController: FgsManagerController, |
| ) : ForegroundServicesRepository { |
| override val foregroundServicesCount: Flow<Int> = |
| fgsManagerController.isAvailable |
| .flatMapLatest { isAvailable -> |
| if (!isAvailable) { |
| return@flatMapLatest flowOf(0) |
| } |
| |
| conflatedCallbackFlow { |
| fun updateState(numberOfPackages: Int) { |
| trySendWithFailureLogging(numberOfPackages, TAG) |
| } |
| |
| val listener = |
| object : FgsManagerController.OnNumberOfPackagesChangedListener { |
| override fun onNumberOfPackagesChanged(numberOfPackages: Int) { |
| updateState(numberOfPackages) |
| } |
| } |
| |
| fgsManagerController.addOnNumberOfPackagesChangedListener(listener) |
| updateState(fgsManagerController.numRunningPackages) |
| awaitClose { |
| fgsManagerController.removeOnNumberOfPackagesChangedListener(listener) |
| } |
| } |
| } |
| .distinctUntilChanged() |
| |
| override val hasNewChanges: Flow<Boolean> = |
| fgsManagerController.showFooterDot.flatMapLatest { showFooterDot -> |
| if (!showFooterDot) { |
| return@flatMapLatest flowOf(false) |
| } |
| |
| // A flow that emits whenever the FGS dialog is dismissed. |
| val dialogDismissedEvents = conflatedCallbackFlow { |
| fun updateState() { |
| trySendWithFailureLogging( |
| Unit, |
| TAG, |
| ) |
| } |
| |
| val listener = |
| object : FgsManagerController.OnDialogDismissedListener { |
| override fun onDialogDismissed() { |
| updateState() |
| } |
| } |
| |
| fgsManagerController.addOnDialogDismissedListener(listener) |
| awaitClose { fgsManagerController.removeOnDialogDismissedListener(listener) } |
| } |
| |
| // Query [fgsManagerController.newChangesSinceDialogWasDismissed] everytime the dialog |
| // is dismissed or when [foregroundServices] is changing. |
| merge( |
| foregroundServicesCount, |
| dialogDismissedEvents, |
| ) |
| .map { fgsManagerController.newChangesSinceDialogWasDismissed } |
| .distinctUntilChanged() |
| } |
| |
| companion object { |
| private const val TAG = "ForegroundServicesRepositoryImpl" |
| } |
| } |