[fenix] Issue https://github.com/mozilla-mobile/fenix/issues/18443: Fix changes between grid/list viewholders
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/* 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.tabstray.browser
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import androidx.recyclerview.selection.ItemKeyProvider
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import androidx.recyclerview.widget.RecyclerView
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/**
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* A key provider for the browser tabs.
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*/
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class TabsItemKeyProvider(private val recyclerView: RecyclerView) :
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ItemKeyProvider<Long>(SCOPE_MAPPED) {
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override fun getKey(position: Int): Long? {
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return recyclerView.adapter?.getItemId(position)
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}
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override fun getPosition(key: Long): Int {
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val viewHolder = recyclerView.findViewHolderForItemId(key)
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return viewHolder?.layoutPosition ?: RecyclerView.NO_POSITION
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}
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}
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