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// SPDX-FileCopyrightText: 2024 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
package org.yuzu.yuzu_emu.adapters
import android.annotation.SuppressLint
import androidx.recyclerview.widget.AsyncDifferConfig
import androidx.recyclerview.widget.DiffUtil
import androidx.recyclerview.widget.ListAdapter
import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
import androidx.recyclerview.widget.RecyclerView
/**
* Generic adapter that implements an [AsyncDifferConfig] and covers some of the basic boilerplate
* code used in every [RecyclerView].
* Type assigned to [Model] must inherit from [Object] in order to be compared properly.
* @param exact Decides whether each item will be compared by reference or by their contents
*/
abstract class AbstractDiffAdapter<Model : Any, Holder : AbstractViewHolder<Model>>(
exact: Boolean = true
) : ListAdapter<Model, Holder>(AsyncDifferConfig.Builder(DiffCallback<Model>(exact)).build()) {
override fun onBindViewHolder(holder: Holder, position: Int) =
holder.bind(currentList[position])
private class DiffCallback<Model>(val exact: Boolean) : DiffUtil.ItemCallback<Model>() {
override fun areItemsTheSame(oldItem: Model & Any, newItem: Model & Any): Boolean {
if (exact) {
return oldItem === newItem
}
return oldItem == newItem
}
@SuppressLint("DiffUtilEquals")
override fun areContentsTheSame(oldItem: Model & Any, newItem: Model & Any): Boolean {
return oldItem == newItem
}
}
}
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