Move adapter Job setup code to helper class (#3407)
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package org.mozilla.fenix.utils
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import androidx.recyclerview.widget.DiffUtil
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import androidx.recyclerview.widget.ListAdapter
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import androidx.recyclerview.widget.RecyclerView
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import kotlinx.coroutines.Job
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/* This Source Code Form is subject to the terms of the Mozilla Public
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License, v. 2.0. If a copy of the MPL was not distributed with this
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file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* [RecyclerView.Adapter] with a [Job] for coroutines.
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* The adapterJob is setup when the adapter is attached to a RecyclerView and canceled when detached.
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*/
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abstract class AdapterWithJob<VH : RecyclerView.ViewHolder> : RecyclerView.Adapter<VH>() {
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protected lateinit var adapterJob: Job
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override fun onAttachedToRecyclerView(recyclerView: RecyclerView) {
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super.onAttachedToRecyclerView(recyclerView)
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adapterJob = Job()
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}
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override fun onDetachedFromRecyclerView(recyclerView: RecyclerView) {
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super.onDetachedFromRecyclerView(recyclerView)
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adapterJob.cancel()
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}
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}
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/**
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* [ListAdapter] with a [Job] for coroutines.
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* The adapterJob is setup when the adapter is attached to a RecyclerView and canceled when detached.
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*/
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abstract class ListAdapterWithJob<T, VH : RecyclerView.ViewHolder>(
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diffCallback: DiffUtil.ItemCallback<T>
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) : ListAdapter<T, VH>(diffCallback) {
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protected lateinit var adapterJob: Job
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override fun onAttachedToRecyclerView(recyclerView: RecyclerView) {
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super.onAttachedToRecyclerView(recyclerView)
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adapterJob = Job()
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}
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override fun onDetachedFromRecyclerView(recyclerView: RecyclerView) {
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super.onDetachedFromRecyclerView(recyclerView)
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adapterJob.cancel()
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}
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}
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