93 lines
3.0 KiB
Kotlin
93 lines
3.0 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.advanced
|
|
|
|
import android.view.LayoutInflater
|
|
import android.view.ViewGroup
|
|
import androidx.recyclerview.widget.DiffUtil
|
|
import androidx.recyclerview.widget.RecyclerView
|
|
import org.mozilla.fenix.R
|
|
import java.util.Locale
|
|
|
|
class LocaleAdapter(private val interactor: LocaleSettingsViewInteractor) :
|
|
RecyclerView.Adapter<BaseLocaleViewHolder>() {
|
|
|
|
private var localeList: List<Locale> = listOf()
|
|
private var selectedLocale: Locale = Locale.getDefault()
|
|
|
|
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BaseLocaleViewHolder {
|
|
val view = LayoutInflater.from(parent.context)
|
|
.inflate(R.layout.locale_settings_item, parent, false)
|
|
|
|
return when (viewType) {
|
|
ItemType.DEFAULT.ordinal -> SystemLocaleViewHolder(
|
|
view,
|
|
selectedLocale,
|
|
interactor
|
|
)
|
|
ItemType.LOCALE.ordinal -> LocaleViewHolder(
|
|
view,
|
|
selectedLocale,
|
|
interactor
|
|
)
|
|
else -> throw IllegalStateException("ViewType $viewType does not match to a ViewHolder")
|
|
}
|
|
}
|
|
|
|
override fun getItemCount(): Int {
|
|
return localeList.size
|
|
}
|
|
|
|
override fun onBindViewHolder(holder: BaseLocaleViewHolder, position: Int) {
|
|
holder.bind(localeList[position])
|
|
}
|
|
|
|
override fun getItemViewType(position: Int): Int {
|
|
return when (position) {
|
|
0 -> ItemType.DEFAULT
|
|
else -> ItemType.LOCALE
|
|
}.ordinal
|
|
}
|
|
|
|
fun updateData(localeList: List<Locale>, selectedLocale: Locale) {
|
|
val diffUtil = DiffUtil.calculateDiff(
|
|
LocaleDiffUtil(
|
|
this.localeList,
|
|
localeList,
|
|
this.selectedLocale,
|
|
selectedLocale
|
|
)
|
|
)
|
|
this.localeList = localeList
|
|
this.selectedLocale = selectedLocale
|
|
|
|
diffUtil.dispatchUpdatesTo(this)
|
|
}
|
|
|
|
inner class LocaleDiffUtil(
|
|
private val old: List<Locale>,
|
|
private val new: List<Locale>,
|
|
private val oldSelectedLocale: Locale,
|
|
private val newSelectedLocale: Locale
|
|
) : DiffUtil.Callback() {
|
|
|
|
override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
|
|
val selectionChanged =
|
|
old[oldItemPosition] == oldSelectedLocale && oldSelectedLocale != newSelectedLocale
|
|
return old[oldItemPosition] == new[newItemPosition] && !selectionChanged
|
|
}
|
|
|
|
override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean =
|
|
old[oldItemPosition].toLanguageTag() == new[newItemPosition].toLanguageTag()
|
|
|
|
override fun getOldListSize(): Int = old.size
|
|
override fun getNewListSize(): Int = new.size
|
|
}
|
|
|
|
enum class ItemType {
|
|
DEFAULT, LOCALE;
|
|
}
|
|
}
|