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fenix/app/src/main/java/org/mozilla/fenix/settings/about/AboutPageAdapter.kt

42 lines
1.5 KiB
Kotlin

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.fenix.settings.about
import android.view.LayoutInflater
import android.view.ViewGroup
import androidx.recyclerview.widget.DiffUtil
import androidx.recyclerview.widget.ListAdapter
import org.mozilla.fenix.settings.about.viewholders.AboutItemViewHolder
class AboutPageAdapter(private val listener: AboutPageListener) :
ListAdapter<AboutPageItem, AboutItemViewHolder>(DiffCallback) {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): AboutItemViewHolder {
val view = LayoutInflater.from(parent.context)
.inflate(AboutItemViewHolder.LAYOUT_ID, parent, false)
return AboutItemViewHolder(view, listener)
}
override fun onBindViewHolder(holder: AboutItemViewHolder, position: Int) {
holder.bind(getItem(position) as AboutPageItem.Item)
}
private object DiffCallback : DiffUtil.ItemCallback<AboutPageItem>() {
override fun areItemsTheSame(oldItem: AboutPageItem, newItem: AboutPageItem) =
oldItem === newItem
override fun areContentsTheSame(oldItem: AboutPageItem, newItem: AboutPageItem) =
when (oldItem) {
is AboutPageItem.Item ->
newItem is AboutPageItem.Item && oldItem.title == newItem.title
}
}
}
interface AboutPageListener {
fun onAboutItemClicked(item: AboutItem)
}