1 /* <lambda>null2 * Copyright (C) 2024 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.deviceconfig.data.repository 18 19 import android.provider.DeviceConfig 20 import com.android.systemui.dagger.SysUISingleton 21 import com.android.systemui.dagger.qualifiers.Background 22 import com.android.systemui.util.DeviceConfigProxy 23 import com.android.systemui.utils.coroutines.flow.conflatedCallbackFlow 24 import java.util.concurrent.Executor 25 import javax.inject.Inject 26 import kotlinx.coroutines.CoroutineDispatcher 27 import kotlinx.coroutines.channels.awaitClose 28 import kotlinx.coroutines.flow.Flow 29 import kotlinx.coroutines.flow.flowOn 30 31 @SysUISingleton 32 class DeviceConfigRepository 33 @Inject 34 constructor( 35 @Background private val backgroundExecutor: Executor, 36 @Background private val backgroundDispatcher: CoroutineDispatcher, 37 private val dataSource: DeviceConfigProxy, 38 ) { 39 40 fun property(namespace: String, name: String, default: Boolean): Flow<Boolean> { 41 return conflatedCallbackFlow { 42 val listener = { properties: DeviceConfig.Properties -> 43 if (properties.keyset.contains(name)) { 44 trySend(properties.getBoolean(name, default)) 45 } 46 } 47 48 dataSource.addOnPropertiesChangedListener( 49 namespace, 50 backgroundExecutor, 51 listener, 52 ) 53 trySend(dataSource.getBoolean(namespace, name, default)) 54 55 awaitClose { dataSource.removeOnPropertiesChangedListener(listener) } 56 } 57 .flowOn(backgroundDispatcher) 58 } 59 } 60