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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.kotlin
import android.view.View
import androidx.lifecycle.Lifecycle
import androidx.lifecycle.repeatOnLifecycle
import com.android.systemui.lifecycle.repeatWhenAttached
import java.util.function.Consumer
import kotlin.coroutines.CoroutineContext
import kotlin.coroutines.EmptyCoroutineContext
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.collect
/**
* Collect information for the given [flow], calling [consumer] for each emitted event. Defaults to
* [LifeCycle.State.CREATED] to better align with legacy ViewController usage of attaching listeners
* during onViewAttached() and removing during onViewRemoved()
*/
@JvmOverloads
fun <T> collectFlow(
view: View,
flow: Flow<T>,
consumer: Consumer<T>,
coroutineContext: CoroutineContext = EmptyCoroutineContext,
state: Lifecycle.State = Lifecycle.State.CREATED,
) {
view.repeatWhenAttached(coroutineContext) {
repeatOnLifecycle(state) { flow.collect { consumer.accept(it) } }
}
}
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