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/*
* 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.util.settings
import android.annotation.UserIdInt
import android.database.ContentObserver
import com.android.systemui.common.coroutine.ConflatedCallbackFlow.conflatedCallbackFlow
import kotlinx.coroutines.channels.awaitClose
import kotlinx.coroutines.flow.Flow
/** Kotlin extension functions for [SettingsProxy]. */
object SettingsProxyExt {
/** Returns a flow of [Unit] that is invoked each time that content is updated. */
fun SettingsProxy.observerFlow(
@UserIdInt userId: Int,
vararg names: String,
): Flow<Unit> {
return conflatedCallbackFlow {
val observer =
object : ContentObserver(null) {
override fun onChange(selfChange: Boolean) {
trySend(Unit)
}
}
names.forEach { name -> registerContentObserverForUser(name, observer, userId) }
awaitClose { unregisterContentObserver(observer) }
}
}
}
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