135 lines
4.1 KiB
Java
135 lines
4.1 KiB
Java
/* Copyright 2017 Andrew Dawson
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*
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* This file is a part of Tusky.
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Tusky; if not,
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* see <http://www.gnu.org/licenses>. */
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package com.keylesspalace.tusky.adapter;
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import android.support.annotation.Nullable;
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import android.support.v7.widget.RecyclerView;
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import com.keylesspalace.tusky.entity.Account;
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import com.keylesspalace.tusky.interfaces.AccountActionListener;
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import com.keylesspalace.tusky.util.ListUtils;
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import java.util.ArrayList;
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import java.util.List;
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public abstract class AccountAdapter extends RecyclerView.Adapter {
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List<Account> accountList;
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AccountActionListener accountActionListener;
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FooterViewHolder.State footerState;
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private String topId;
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private String bottomId;
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AccountAdapter(AccountActionListener accountActionListener) {
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super();
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accountList = new ArrayList<>();
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this.accountActionListener = accountActionListener;
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footerState = FooterViewHolder.State.END;
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}
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@Override
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public int getItemCount() {
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return accountList.size() + 1;
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}
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public void update(@Nullable List<Account> newAccounts, @Nullable String fromId,
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@Nullable String uptoId) {
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if (newAccounts == null || newAccounts.isEmpty()) {
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return;
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}
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bottomId = fromId;
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topId = uptoId;
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if (accountList.isEmpty()) {
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accountList = ListUtils.removeDuplicates(newAccounts);
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} else {
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int index = accountList.indexOf(newAccounts.get(newAccounts.size() - 1));
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for (int i = 0; i < index; i++) {
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accountList.remove(0);
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}
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int newIndex = newAccounts.indexOf(accountList.get(0));
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if (newIndex == -1) {
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accountList.addAll(0, newAccounts);
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} else {
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accountList.addAll(0, newAccounts.subList(0, newIndex));
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}
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}
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notifyDataSetChanged();
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}
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public void addItems(List<Account> newAccounts, @Nullable String fromId) {
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if (fromId != null) {
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bottomId = fromId;
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}
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int end = accountList.size();
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Account last = accountList.get(end - 1);
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if (last != null && !findAccount(newAccounts, last.getId())) {
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accountList.addAll(newAccounts);
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notifyItemRangeInserted(end, newAccounts.size());
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}
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}
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private static boolean findAccount(List<Account> accounts, String id) {
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for (Account account : accounts) {
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if (account.getId().equals(id)) {
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return true;
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}
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}
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return false;
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}
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@Nullable
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public Account removeItem(int position) {
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if (position < 0 || position >= accountList.size()) {
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return null;
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}
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Account account = accountList.remove(position);
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notifyItemRemoved(position);
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return account;
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}
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public void addItem(Account account, int position) {
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if (position < 0 || position > accountList.size()) {
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return;
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}
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accountList.add(position, account);
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notifyItemInserted(position);
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}
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@Nullable
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public Account getItem(int position) {
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if (position >= 0 && position < accountList.size()) {
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return accountList.get(position);
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}
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return null;
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}
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public void setFooterState(FooterViewHolder.State newFooterState) {
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footerState = newFooterState;
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}
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@Nullable
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public String getBottomId() {
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return bottomId;
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}
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@Nullable
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public String getTopId() {
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return topId;
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}
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}
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