74 lines
2.8 KiB
Kotlin
74 lines
2.8 KiB
Kotlin
/* 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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package org.mozilla.fenix.exceptions
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import android.view.LayoutInflater
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import android.view.ViewGroup
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import androidx.recyclerview.widget.RecyclerView
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import io.reactivex.Observer
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import org.mozilla.fenix.exceptions.viewholders.ExceptionsDeleteButtonViewHolder
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import org.mozilla.fenix.exceptions.viewholders.ExceptionsHeaderViewHolder
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import org.mozilla.fenix.exceptions.viewholders.ExceptionsListItemViewHolder
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import org.mozilla.fenix.utils.AdapterWithJob
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private sealed class AdapterItem {
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object DeleteButton : AdapterItem()
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object Header : AdapterItem()
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data class Item(val item: ExceptionsItem) : AdapterItem()
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}
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private class ExceptionsList(val exceptions: List<ExceptionsItem>) {
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val items: List<AdapterItem>
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init {
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val items = mutableListOf<AdapterItem>()
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items.add(AdapterItem.Header)
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for (exception in exceptions) {
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items.add(AdapterItem.Item(exception))
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}
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items.add(AdapterItem.DeleteButton)
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this.items = items
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}
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}
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class ExceptionsAdapter(
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private val actionEmitter: Observer<ExceptionsAction>
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) : AdapterWithJob<RecyclerView.ViewHolder>() {
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private var exceptionsList: ExceptionsList = ExceptionsList(emptyList())
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fun updateData(items: List<ExceptionsItem>) {
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this.exceptionsList = ExceptionsList(items)
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notifyDataSetChanged()
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}
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override fun getItemCount(): Int = exceptionsList.items.size
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override fun getItemViewType(position: Int): Int {
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return when (exceptionsList.items[position]) {
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is AdapterItem.DeleteButton -> ExceptionsDeleteButtonViewHolder.LAYOUT_ID
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is AdapterItem.Header -> ExceptionsHeaderViewHolder.LAYOUT_ID
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is AdapterItem.Item -> ExceptionsListItemViewHolder.LAYOUT_ID
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}
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}
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override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
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val view = LayoutInflater.from(parent.context).inflate(viewType, parent, false)
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return when (viewType) {
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ExceptionsDeleteButtonViewHolder.LAYOUT_ID -> ExceptionsDeleteButtonViewHolder(view, actionEmitter)
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ExceptionsHeaderViewHolder.LAYOUT_ID -> ExceptionsHeaderViewHolder(view)
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ExceptionsListItemViewHolder.LAYOUT_ID -> ExceptionsListItemViewHolder(view, actionEmitter, adapterJob)
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else -> throw IllegalStateException()
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}
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}
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override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
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when (holder) {
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is ExceptionsListItemViewHolder -> (exceptionsList.items[position] as AdapterItem.Item).also {
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holder.bind(it.item)
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}
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}
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}
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}
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