79 lines
3.3 KiB
Kotlin
79 lines
3.3 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.trackingprotectionexceptions
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import android.view.LayoutInflater
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import android.view.ViewGroup
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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 mozilla.components.concept.engine.content.blocking.TrackingProtectionException
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import org.mozilla.fenix.trackingprotectionexceptions.viewholders.ExceptionsDeleteButtonViewHolder
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import org.mozilla.fenix.trackingprotectionexceptions.viewholders.ExceptionsHeaderViewHolder
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import org.mozilla.fenix.trackingprotectionexceptions.viewholders.ExceptionsListItemViewHolder
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/**
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* Adapter for a list of sites that are exempted from Tracking Protection,
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* along with controls to remove the exception.
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*/
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class ExceptionsAdapter(
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private val interactor: ExceptionsInteractor
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) : ListAdapter<ExceptionsAdapter.AdapterItem, RecyclerView.ViewHolder>(DiffCallback) {
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/**
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* Change the list of items that are displayed.
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* Header and footer items are added to the list as well.
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*/
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fun updateData(exceptions: List<TrackingProtectionException>) {
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val adapterItems = mutableListOf<AdapterItem>()
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adapterItems.add(AdapterItem.Header)
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exceptions.mapTo(adapterItems) { AdapterItem.Item(it) }
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adapterItems.add(AdapterItem.DeleteButton)
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submitList(adapterItems)
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}
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override fun getItemViewType(position: Int) = when (getItem(position)) {
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AdapterItem.DeleteButton -> ExceptionsDeleteButtonViewHolder.LAYOUT_ID
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AdapterItem.Header -> ExceptionsHeaderViewHolder.LAYOUT_ID
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is AdapterItem.Item -> ExceptionsListItemViewHolder.LAYOUT_ID
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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(
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view,
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interactor
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)
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ExceptionsHeaderViewHolder.LAYOUT_ID -> ExceptionsHeaderViewHolder(view)
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ExceptionsListItemViewHolder.LAYOUT_ID -> ExceptionsListItemViewHolder(view, interactor)
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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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if (holder is ExceptionsListItemViewHolder) {
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val adapterItem = getItem(position) as AdapterItem.Item
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holder.bind(adapterItem.item)
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}
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}
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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: TrackingProtectionException) : AdapterItem()
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}
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private object DiffCallback : DiffUtil.ItemCallback<AdapterItem>() {
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override fun areItemsTheSame(oldItem: AdapterItem, newItem: AdapterItem) =
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areContentsTheSame(oldItem, newItem)
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@Suppress("DiffUtilEquals")
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override fun areContentsTheSame(oldItem: AdapterItem, newItem: AdapterItem) =
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oldItem == newItem
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}
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}
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