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- /* Copyright 2017 Andrew Dawson
- *
- * This file is a part of Tusky.
- *
- * This program is free software; you can redistribute it and/or modify it under the terms of the
- * GNU General Public License as published by the Free Software Foundation; either version 3 of the
- * License, or (at your option) any later version.
- *
- * Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
- * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
- * Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along with Tusky; if not,
- * see <http://www.gnu.org/licenses>. */
- package com.keylesspalace.tusky;
- import android.support.annotation.Nullable;
- import android.support.v7.widget.RecyclerView;
- import android.view.LayoutInflater;
- import android.view.View;
- import android.view.ViewGroup;
- import com.keylesspalace.tusky.entity.Status;
- import java.util.ArrayList;
- import java.util.List;
- class TimelineAdapter extends RecyclerView.Adapter implements AdapterItemRemover {
- private static final int VIEW_TYPE_STATUS = 0;
- private static final int VIEW_TYPE_FOOTER = 1;
- private List<Status> statuses;
- private StatusActionListener statusListener;
- TimelineAdapter(StatusActionListener statusListener) {
- super();
- statuses = new ArrayList<>();
- this.statusListener = statusListener;
- }
- @Override
- public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
- switch (viewType) {
- default:
- case VIEW_TYPE_STATUS: {
- View view = LayoutInflater.from(viewGroup.getContext())
- .inflate(R.layout.item_status, viewGroup, false);
- return new StatusViewHolder(view);
- }
- case VIEW_TYPE_FOOTER: {
- View view = LayoutInflater.from(viewGroup.getContext())
- .inflate(R.layout.item_footer, viewGroup, false);
- return new FooterViewHolder(view);
- }
- }
- }
- @Override
- public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int position) {
- if (position < statuses.size()) {
- StatusViewHolder holder = (StatusViewHolder) viewHolder;
- Status status = statuses.get(position);
- holder.setupWithStatus(status, statusListener);
- }
- }
- @Override
- public int getItemCount() {
- return statuses.size() + 1;
- }
- @Override
- public int getItemViewType(int position) {
- if (position == statuses.size()) {
- return VIEW_TYPE_FOOTER;
- } else {
- return VIEW_TYPE_STATUS;
- }
- }
- void update(List<Status> newStatuses) {
- if (newStatuses == null || newStatuses.isEmpty()) {
- return;
- }
- if (statuses.isEmpty()) {
- statuses = newStatuses;
- } else {
- int index = statuses.indexOf(newStatuses.get(newStatuses.size() - 1));
- for (int i = 0; i < index; i++) {
- statuses.remove(0);
- }
- int newIndex = newStatuses.indexOf(statuses.get(0));
- if (newIndex == -1) {
- statuses.addAll(0, newStatuses);
- } else {
- statuses.addAll(0, newStatuses.subList(0, newIndex));
- }
- }
- notifyDataSetChanged();
- }
- void addItems(List<Status> newStatuses) {
- int end = statuses.size();
- statuses.addAll(newStatuses);
- notifyItemRangeInserted(end, newStatuses.size());
- }
- public void removeItem(int position) {
- statuses.remove(position);
- notifyItemRemoved(position);
- }
- @Nullable
- Status getItem(int position) {
- if (position >= 0 && position < statuses.size()) {
- return statuses.get(position);
- }
- return null;
- }
- }
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