741 lines
29 KiB
Java
741 lines
29 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.fragment;
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import android.app.Activity;
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import android.arch.core.util.Function;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.graphics.drawable.Drawable;
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import android.os.Bundle;
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import android.preference.PreferenceManager;
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import android.support.annotation.NonNull;
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import android.support.annotation.Nullable;
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import android.support.design.widget.FloatingActionButton;
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import android.support.design.widget.TabLayout;
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import android.support.v4.content.LocalBroadcastManager;
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import android.support.v4.widget.SwipeRefreshLayout;
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import android.support.v7.widget.DividerItemDecoration;
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import android.support.v7.widget.LinearLayoutManager;
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import android.support.v7.widget.RecyclerView;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import com.keylesspalace.tusky.MainActivity;
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import com.keylesspalace.tusky.R;
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import com.keylesspalace.tusky.TuskyApplication;
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import com.keylesspalace.tusky.adapter.FooterViewHolder;
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import com.keylesspalace.tusky.adapter.NotificationsAdapter;
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import com.keylesspalace.tusky.db.AccountEntity;
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import com.keylesspalace.tusky.db.AccountManager;
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import com.keylesspalace.tusky.di.Injectable;
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import com.keylesspalace.tusky.entity.Attachment;
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import com.keylesspalace.tusky.entity.Notification;
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import com.keylesspalace.tusky.entity.Status;
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import com.keylesspalace.tusky.interfaces.ActionButtonActivity;
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import com.keylesspalace.tusky.interfaces.StatusActionListener;
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import com.keylesspalace.tusky.network.MastodonApi;
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import com.keylesspalace.tusky.network.TimelineCases;
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import com.keylesspalace.tusky.receiver.TimelineReceiver;
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import com.keylesspalace.tusky.util.CollectionUtil;
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import com.keylesspalace.tusky.util.Either;
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import com.keylesspalace.tusky.util.HttpHeaderLink;
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import com.keylesspalace.tusky.util.ListUtils;
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import com.keylesspalace.tusky.util.PairedList;
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import com.keylesspalace.tusky.util.ThemeUtils;
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import com.keylesspalace.tusky.util.ViewDataUtils;
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import com.keylesspalace.tusky.view.EndlessOnScrollListener;
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import com.keylesspalace.tusky.viewdata.NotificationViewData;
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import com.keylesspalace.tusky.viewdata.StatusViewData;
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import java.math.BigInteger;
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import java.util.Iterator;
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import java.util.List;
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import javax.inject.Inject;
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import retrofit2.Call;
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import retrofit2.Callback;
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import retrofit2.Response;
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public class NotificationsFragment extends SFragment implements
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SwipeRefreshLayout.OnRefreshListener,
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StatusActionListener,
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NotificationsAdapter.NotificationActionListener,
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SharedPreferences.OnSharedPreferenceChangeListener,
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Injectable {
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private static final String TAG = "NotificationF"; // logging tag
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private static final int LOAD_AT_ONCE = 30;
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private enum FetchEnd {
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TOP,
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BOTTOM,
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MIDDLE
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}
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/**
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* Placeholder for the notificationsEnabled. Consider moving to the separate class to hide constructor
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* and reuse in different places as needed.
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*/
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private static final class Placeholder {
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private static final Placeholder INSTANCE = new Placeholder();
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public static Placeholder getInstance() {
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return INSTANCE;
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}
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private Placeholder() {
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}
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}
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@Inject
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public TimelineCases timelineCases;
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@Inject
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public MastodonApi mastodonApi;
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private SwipeRefreshLayout swipeRefreshLayout;
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private LinearLayoutManager layoutManager;
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private RecyclerView recyclerView;
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private EndlessOnScrollListener scrollListener;
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private NotificationsAdapter adapter;
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private TabLayout.OnTabSelectedListener onTabSelectedListener;
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private boolean hideFab;
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private TimelineReceiver timelineReceiver;
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private boolean topLoading;
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private int topFetches;
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private boolean bottomLoading;
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private int bottomFetches;
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private String bottomId;
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private String topId;
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private boolean alwaysShowSensitiveMedia;
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@Override
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protected TimelineCases timelineCases() {
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return timelineCases;
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}
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// Each element is either a Notification for loading data or a Placeholder
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private final PairedList<Either<Placeholder, Notification>, NotificationViewData> notifications
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= new PairedList<>(new Function<Either<Placeholder, Notification>, NotificationViewData>() {
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@Override
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public NotificationViewData apply(Either<Placeholder, Notification> input) {
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if (input.isRight()) {
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Notification notification = input.getAsRight();
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return ViewDataUtils.notificationToViewData(notification, alwaysShowSensitiveMedia);
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} else {
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return new NotificationViewData.Placeholder(false);
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}
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}
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});
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public static NotificationsFragment newInstance() {
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NotificationsFragment fragment = new NotificationsFragment();
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Bundle arguments = new Bundle();
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fragment.setArguments(arguments);
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return fragment;
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}
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@Nullable
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@Override
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public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
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@Nullable Bundle savedInstanceState) {
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View rootView = inflater.inflate(R.layout.fragment_timeline, container, false);
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@NonNull Context context = inflater.getContext(); // from inflater to silence warning
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// Setup the SwipeRefreshLayout.
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swipeRefreshLayout = rootView.findViewById(R.id.swipe_refresh_layout);
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swipeRefreshLayout.setOnRefreshListener(this);
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swipeRefreshLayout.setColorSchemeResources(R.color.primary);
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swipeRefreshLayout.setProgressBackgroundColorSchemeColor(ThemeUtils.getColor(context, android.R.attr.colorBackground));
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// Setup the RecyclerView.
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recyclerView = rootView.findViewById(R.id.recycler_view);
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recyclerView.setHasFixedSize(true);
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layoutManager = new LinearLayoutManager(context);
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recyclerView.setLayoutManager(layoutManager);
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DividerItemDecoration divider = new DividerItemDecoration(
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context, layoutManager.getOrientation());
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Drawable drawable = ThemeUtils.getDrawable(context, R.attr.status_divider_drawable,
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R.drawable.status_divider_dark);
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divider.setDrawable(drawable);
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recyclerView.addItemDecoration(divider);
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adapter = new NotificationsAdapter(this, this);
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SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(
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getActivity());
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alwaysShowSensitiveMedia = preferences.getBoolean("alwaysShowSensitiveMedia", false);
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boolean mediaPreviewEnabled = preferences.getBoolean("mediaPreviewEnabled", true);
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adapter.setMediaPreviewEnabled(mediaPreviewEnabled);
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recyclerView.setAdapter(adapter);
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timelineReceiver = new TimelineReceiver(this);
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LocalBroadcastManager.getInstance(context.getApplicationContext())
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.registerReceiver(timelineReceiver, TimelineReceiver.getFilter(null));
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notifications.clear();
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topLoading = false;
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topFetches = 0;
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bottomLoading = false;
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bottomFetches = 0;
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bottomId = null;
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topId = null;
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return rootView;
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}
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@Override
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public void onActivityCreated(@Nullable Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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MainActivity activity = (MainActivity) getActivity();
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if (activity == null) throw new AssertionError("Activity is null");
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// MainActivity's layout is guaranteed to be inflated until onCreate returns.
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TabLayout layout = activity.findViewById(R.id.tab_layout);
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onTabSelectedListener = new TabLayout.OnTabSelectedListener() {
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@Override
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public void onTabSelected(TabLayout.Tab tab) {
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}
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@Override
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public void onTabUnselected(TabLayout.Tab tab) {
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}
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@Override
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public void onTabReselected(TabLayout.Tab tab) {
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jumpToTop();
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}
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};
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layout.addOnTabSelectedListener(onTabSelectedListener);
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/* This is delayed until onActivityCreated solely because MainActivity.composeButton isn't
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* guaranteed to be set until then.
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* Use a modified scroll listener that both loads more notificationsEnabled as it goes, and hides
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* the compose button on down-scroll. */
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SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(activity);
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preferences.registerOnSharedPreferenceChangeListener(this);
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hideFab = preferences.getBoolean("fabHide", false);
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scrollListener = new EndlessOnScrollListener(layoutManager) {
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@Override
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public void onScrolled(RecyclerView view, int dx, int dy) {
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super.onScrolled(view, dx, dy);
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ActionButtonActivity activity = (ActionButtonActivity) getActivity();
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FloatingActionButton composeButton = activity.getActionButton();
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if (composeButton != null) {
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if (hideFab) {
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if (dy > 0 && composeButton.isShown()) {
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composeButton.hide(); // hides the button if we're scrolling down
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} else if (dy < 0 && !composeButton.isShown()) {
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composeButton.show(); // shows it if we are scrolling up
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}
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} else if (!composeButton.isShown()) {
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composeButton.show();
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}
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}
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}
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@Override
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public void onLoadMore(int page, int totalItemsCount, RecyclerView view) {
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NotificationsFragment.this.onLoadMore();
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}
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};
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recyclerView.addOnScrollListener(scrollListener);
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}
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@Override
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public void onDestroyView() {
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Activity activity = getActivity();
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if (activity == null) {
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Log.e(TAG, "Activity is null");
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} else {
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TabLayout tabLayout = activity.findViewById(R.id.tab_layout);
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tabLayout.removeOnTabSelectedListener(onTabSelectedListener);
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LocalBroadcastManager.getInstance(activity)
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.unregisterReceiver(timelineReceiver);
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}
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super.onDestroyView();
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}
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@Override
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public void onRefresh() {
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sendFetchNotificationsRequest(null, topId, FetchEnd.TOP, -1);
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}
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@Override
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public void onReply(int position) {
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super.reply(notifications.get(position).getAsRight().getStatus());
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}
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@Override
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public void onReblog(final boolean reblog, final int position) {
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final Notification notification = notifications.get(position).getAsRight();
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final Status status = notification.getStatus();
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timelineCases.reblogWithCallback(status, reblog, new Callback<Status>() {
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@Override
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public void onResponse(@NonNull Call<Status> call, @NonNull retrofit2.Response<Status> response) {
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if (response.isSuccessful()) {
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status.setReblogged(reblog);
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if (status.getReblog() != null) {
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status.getReblog().setReblogged(reblog);
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}
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NotificationViewData.Concrete viewdata = (NotificationViewData.Concrete) notifications.getPairedItem(position);
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StatusViewData.Builder viewDataBuilder = new StatusViewData.Builder(viewdata.getStatusViewData());
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viewDataBuilder.setReblogged(reblog);
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NotificationViewData.Concrete newViewData = new NotificationViewData.Concrete(
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viewdata.getType(), viewdata.getId(), viewdata.getAccount(),
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viewDataBuilder.createStatusViewData(), viewdata.isExpanded());
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notifications.setPairedItem(position, newViewData);
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adapter.updateItemWithNotify(position, newViewData, false);
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}
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}
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@Override
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public void onFailure(@NonNull Call<Status> call, @NonNull Throwable t) {
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Log.d(getClass().getSimpleName(), "Failed to reblog status: " + status.getId(), t);
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}
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});
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}
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@Override
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public void onFavourite(final boolean favourite, final int position) {
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final Notification notification = notifications.get(position).getAsRight();
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final Status status = notification.getStatus();
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timelineCases.favouriteWithCallback(status, favourite, new Callback<Status>() {
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@Override
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public void onResponse(@NonNull Call<Status> call, @NonNull retrofit2.Response<Status> response) {
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if (response.isSuccessful()) {
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status.setFavourited(favourite);
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if (status.getReblog() != null) {
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status.getReblog().setFavourited(favourite);
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}
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NotificationViewData.Concrete viewdata = (NotificationViewData.Concrete) notifications.getPairedItem(position);
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StatusViewData.Builder viewDataBuilder = new StatusViewData.Builder(viewdata.getStatusViewData());
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viewDataBuilder.setFavourited(favourite);
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NotificationViewData.Concrete newViewData = new NotificationViewData.Concrete(
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viewdata.getType(), viewdata.getId(), viewdata.getAccount(),
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viewDataBuilder.createStatusViewData(), viewdata.isExpanded());
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notifications.setPairedItem(position, newViewData);
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adapter.updateItemWithNotify(position, newViewData, false);
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}
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}
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@Override
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public void onFailure(@NonNull Call<Status> call, @NonNull Throwable t) {
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Log.d(getClass().getSimpleName(), "Failed to favourite status: " + status.getId(), t);
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}
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});
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}
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@Override
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public void onMore(View view, int position) {
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Notification notification = notifications.get(position).getAsRight();
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super.more(notification.getStatus(), view, position);
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}
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@Override
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public void onViewMedia(String[] urls, int urlIndex, Attachment.Type type,
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View view) {
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super.viewMedia(urls, urlIndex, type, view);
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}
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@Override
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public void onViewThread(int position) {
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Notification notification = notifications.get(position).getAsRight();
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super.viewThread(notification.getStatus());
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}
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@Override
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public void onOpenReblog(int position) {
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Notification notification = notifications.get(position).getAsRight();
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onViewAccount(notification.getAccount().getId());
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}
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@Override
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public void onExpandedChange(boolean expanded, int position) {
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NotificationViewData.Concrete old =
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(NotificationViewData.Concrete) notifications.getPairedItem(position);
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StatusViewData.Concrete statusViewData =
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new StatusViewData.Builder(old.getStatusViewData())
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.setIsExpanded(expanded)
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.createStatusViewData();
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NotificationViewData notificationViewData = new NotificationViewData.Concrete(old.getType(),
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old.getId(), old.getAccount(), statusViewData, expanded);
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notifications.setPairedItem(position, notificationViewData);
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adapter.updateItemWithNotify(position, notificationViewData, false);
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}
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@Override
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public void onContentHiddenChange(boolean isShowing, int position) {
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NotificationViewData.Concrete old =
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(NotificationViewData.Concrete) notifications.getPairedItem(position);
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StatusViewData.Concrete statusViewData =
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new StatusViewData.Builder(old.getStatusViewData())
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.setIsShowingSensitiveContent(isShowing)
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.createStatusViewData();
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NotificationViewData notificationViewData = new NotificationViewData.Concrete(old.getType(),
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old.getId(), old.getAccount(), statusViewData, old.isExpanded());
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notifications.setPairedItem(position, notificationViewData);
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adapter.updateItemWithNotify(position, notificationViewData, false);
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}
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@Override
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public void onLoadMore(int position) {
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//check bounds before accessing list,
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if (notifications.size() >= position && position > 0) {
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Notification previous = notifications.get(position - 1).getAsRightOrNull();
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Notification next = notifications.get(position + 1).getAsRightOrNull();
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if (previous == null || next == null) {
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Log.e(TAG, "Failed to load more, invalid placeholder position: " + position);
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return;
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}
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sendFetchNotificationsRequest(previous.getId(), next.getId(), FetchEnd.MIDDLE, position);
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NotificationViewData notificationViewData =
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new NotificationViewData.Placeholder(true);
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notifications.setPairedItem(position, notificationViewData);
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adapter.updateItemWithNotify(position, notificationViewData, false);
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} else {
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Log.d(TAG, "error loading more");
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}
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}
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@Override
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public void onViewTag(String tag) {
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super.viewTag(tag);
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}
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@Override
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public void onViewAccount(String id) {
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super.viewAccount(id);
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}
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@Override
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public void onViewStatusForNotificationId(String notificationId) {
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for (Either<Placeholder, Notification> either : notifications) {
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Notification notification = either.getAsRightOrNull();
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if (notification != null && notification.getId().equals(notificationId)) {
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super.viewThread(notification.getStatus());
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return;
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}
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}
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Log.w(TAG, "Didn't find a notification for ID: " + notificationId);
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}
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@Override
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public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
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switch (key) {
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case "fabHide": {
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hideFab = sharedPreferences.getBoolean("fabHide", false);
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break;
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}
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case "mediaPreviewEnabled": {
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boolean enabled = sharedPreferences.getBoolean("mediaPreviewEnabled", true);
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adapter.setMediaPreviewEnabled(enabled);
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fullyRefresh();
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break;
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}
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}
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}
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@Override
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public void removeItem(int position) {
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notifications.remove(position);
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adapter.update(notifications.getPairedCopy());
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}
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@Override
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public void removeAllByAccountId(String accountId) {
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// using iterator to safely remove items while iterating
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Iterator<Either<Placeholder, Notification>> iterator = notifications.iterator();
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while (iterator.hasNext()) {
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Either<Placeholder, Notification> notification = iterator.next();
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Notification maybeNotification = notification.getAsRightOrNull();
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if (maybeNotification != null && maybeNotification.getAccount().getId().equals(accountId)) {
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iterator.remove();
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}
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}
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adapter.update(notifications.getPairedCopy());
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}
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private void onLoadMore() {
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sendFetchNotificationsRequest(bottomId, null, FetchEnd.BOTTOM, -1);
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}
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private void jumpToTop() {
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layoutManager.scrollToPosition(0);
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scrollListener.reset();
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}
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private void sendFetchNotificationsRequest(String fromId, String uptoId,
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final FetchEnd fetchEnd, final int pos) {
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/* If there is a fetch already ongoing, record however many fetches are requested and
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* fulfill them after it's complete. */
|
|
if (fetchEnd == FetchEnd.TOP && topLoading) {
|
|
topFetches++;
|
|
return;
|
|
}
|
|
if (fetchEnd == FetchEnd.BOTTOM && bottomLoading) {
|
|
bottomFetches++;
|
|
return;
|
|
}
|
|
|
|
if (fromId != null || adapter.getItemCount() <= 1) {
|
|
/* When this is called by the EndlessScrollListener it cannot refresh the footer state
|
|
* using adapter.notifyItemChanged. So its necessary to postpone doing so until a
|
|
* convenient time for the UI thread using a Runnable. */
|
|
recyclerView.post(() -> adapter.setFooterState(FooterViewHolder.State.LOADING));
|
|
}
|
|
|
|
Call<List<Notification>> call = mastodonApi.notifications(fromId, uptoId, LOAD_AT_ONCE);
|
|
|
|
call.enqueue(new Callback<List<Notification>>() {
|
|
@Override
|
|
public void onResponse(@NonNull Call<List<Notification>> call,
|
|
@NonNull Response<List<Notification>> response) {
|
|
if (response.isSuccessful()) {
|
|
String linkHeader = response.headers().get("Link");
|
|
onFetchNotificationsSuccess(response.body(), linkHeader, fetchEnd, pos);
|
|
} else {
|
|
onFetchNotificationsFailure(new Exception(response.message()), fetchEnd, pos);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void onFailure(@NonNull Call<List<Notification>> call, @NonNull Throwable t) {
|
|
onFetchNotificationsFailure((Exception) t, fetchEnd, pos);
|
|
}
|
|
});
|
|
callList.add(call);
|
|
}
|
|
|
|
private void onFetchNotificationsSuccess(List<Notification> notifications, String linkHeader,
|
|
FetchEnd fetchEnd, int pos) {
|
|
List<HttpHeaderLink> links = HttpHeaderLink.parse(linkHeader);
|
|
switch (fetchEnd) {
|
|
case TOP: {
|
|
HttpHeaderLink previous = HttpHeaderLink.findByRelationType(links, "prev");
|
|
String uptoId = null;
|
|
if (previous != null) {
|
|
uptoId = previous.uri.getQueryParameter("since_id");
|
|
}
|
|
update(notifications, null, uptoId);
|
|
break;
|
|
}
|
|
case MIDDLE: {
|
|
replacePlaceholderWithNotifications(notifications, pos);
|
|
break;
|
|
}
|
|
case BOTTOM: {
|
|
HttpHeaderLink next = HttpHeaderLink.findByRelationType(links, "next");
|
|
String fromId = null;
|
|
if (next != null) {
|
|
fromId = next.uri.getQueryParameter("max_id");
|
|
}
|
|
if (adapter.getItemCount() > 1) {
|
|
addItems(notifications, fromId);
|
|
} else {
|
|
/* If this is the first fetch, also save the id from the "previous" link and
|
|
* treat this operation as a refresh so the scroll position doesn't get pushed
|
|
* down to the end. */
|
|
HttpHeaderLink previous = HttpHeaderLink.findByRelationType(links, "prev");
|
|
String uptoId = null;
|
|
if (previous != null) {
|
|
uptoId = previous.uri.getQueryParameter("since_id");
|
|
}
|
|
update(notifications, fromId, uptoId);
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
saveNewestNotificationId(notifications);
|
|
|
|
fulfillAnyQueuedFetches(fetchEnd);
|
|
if (notifications.size() == 0 && adapter.getItemCount() == 1) {
|
|
adapter.setFooterState(FooterViewHolder.State.EMPTY);
|
|
} else {
|
|
adapter.setFooterState(FooterViewHolder.State.END);
|
|
}
|
|
swipeRefreshLayout.setRefreshing(false);
|
|
}
|
|
|
|
private void onFetchNotificationsFailure(Exception exception, FetchEnd fetchEnd, int position) {
|
|
swipeRefreshLayout.setRefreshing(false);
|
|
if (fetchEnd == FetchEnd.MIDDLE && !notifications.get(position).isRight()) {
|
|
NotificationViewData placeholderVD =
|
|
new NotificationViewData.Placeholder(false);
|
|
notifications.setPairedItem(position, placeholderVD);
|
|
adapter.updateItemWithNotify(position, placeholderVD, true);
|
|
}
|
|
Log.e(TAG, "Fetch failure: " + exception.getMessage());
|
|
fulfillAnyQueuedFetches(fetchEnd);
|
|
}
|
|
|
|
private void saveNewestNotificationId(List<Notification> notifications) {
|
|
AccountManager accountManager = TuskyApplication.getInstance(getContext())
|
|
.getServiceLocator().get(AccountManager.class);
|
|
AccountEntity account = accountManager.getActiveAccount();
|
|
BigInteger lastNoti = new BigInteger(account.getLastNotificationId());
|
|
|
|
for (Notification noti : notifications) {
|
|
BigInteger a = new BigInteger(noti.getId());
|
|
if (isBiggerThan(a, lastNoti)) {
|
|
lastNoti = a;
|
|
}
|
|
}
|
|
|
|
Log.d(TAG, "saving newest noti id: " + lastNoti);
|
|
|
|
account.setLastNotificationId(lastNoti.toString());
|
|
accountManager.saveAccount(account);
|
|
}
|
|
|
|
private boolean isBiggerThan(BigInteger newId, BigInteger lastShownNotificationId) {
|
|
|
|
return lastShownNotificationId.compareTo(newId) == -1;
|
|
}
|
|
|
|
private void update(@Nullable List<Notification> newNotifications, @Nullable String fromId,
|
|
@Nullable String uptoId) {
|
|
if (ListUtils.isEmpty(newNotifications)) {
|
|
return;
|
|
}
|
|
if (fromId != null) {
|
|
bottomId = fromId;
|
|
}
|
|
if (uptoId != null) {
|
|
topId = uptoId;
|
|
}
|
|
List<Either<Placeholder, Notification>> liftedNew =
|
|
liftNotificationList(newNotifications);
|
|
if (notifications.isEmpty()) {
|
|
notifications.addAll(liftedNew);
|
|
} else {
|
|
int index = notifications.indexOf(liftedNew.get(newNotifications.size() - 1));
|
|
for (int i = 0; i < index; i++) {
|
|
notifications.remove(0);
|
|
}
|
|
|
|
|
|
int newIndex = liftedNew.indexOf(notifications.get(0));
|
|
if (newIndex == -1) {
|
|
if (index == -1 && liftedNew.size() >= LOAD_AT_ONCE) {
|
|
liftedNew.add(Either.left(Placeholder.getInstance()));
|
|
}
|
|
notifications.addAll(0, liftedNew);
|
|
} else {
|
|
notifications.addAll(0, liftedNew.subList(0, newIndex));
|
|
}
|
|
}
|
|
adapter.update(notifications.getPairedCopy());
|
|
}
|
|
|
|
private void addItems(List<Notification> newNotifications, @Nullable String fromId) {
|
|
if (ListUtils.isEmpty(newNotifications)) {
|
|
return;
|
|
}
|
|
if (fromId != null) {
|
|
bottomId = fromId;
|
|
}
|
|
int end = notifications.size();
|
|
List<Either<Placeholder, Notification>> liftedNew = liftNotificationList(newNotifications);
|
|
Either<Placeholder, Notification> last = notifications.get(end - 1);
|
|
if (last != null && liftedNew.indexOf(last) == -1) {
|
|
notifications.addAll(liftedNew);
|
|
List<NotificationViewData> newViewDatas = notifications.getPairedCopy()
|
|
.subList(notifications.size() - newNotifications.size(),
|
|
notifications.size());
|
|
adapter.addItems(newViewDatas);
|
|
}
|
|
}
|
|
|
|
private void fulfillAnyQueuedFetches(FetchEnd fetchEnd) {
|
|
switch (fetchEnd) {
|
|
case BOTTOM: {
|
|
bottomLoading = false;
|
|
if (bottomFetches > 0) {
|
|
bottomFetches--;
|
|
onLoadMore();
|
|
}
|
|
break;
|
|
}
|
|
case TOP: {
|
|
topLoading = false;
|
|
if (topFetches > 0) {
|
|
topFetches--;
|
|
onRefresh();
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
private void replacePlaceholderWithNotifications(List<Notification> newNotifications, int pos) {
|
|
// Remove placeholder
|
|
notifications.remove(pos);
|
|
|
|
if (ListUtils.isEmpty(newNotifications)) {
|
|
adapter.update(notifications.getPairedCopy());
|
|
return;
|
|
}
|
|
|
|
List<Either<Placeholder, Notification>> liftedNew = liftNotificationList(newNotifications);
|
|
|
|
// If we fetched less posts than in the limit, it means that the hole is not filled
|
|
// If we fetched at least as much it means that there are more posts to load and we should
|
|
// insert new placeholder
|
|
if (newNotifications.size() >= LOAD_AT_ONCE) {
|
|
liftedNew.add(Either.left(Placeholder.getInstance()));
|
|
}
|
|
|
|
notifications.addAll(pos, liftedNew);
|
|
adapter.update(notifications.getPairedCopy());
|
|
}
|
|
|
|
private final Function<Notification, Either<Placeholder, Notification>> notificationLifter =
|
|
Either::right;
|
|
|
|
private List<Either<Placeholder, Notification>> liftNotificationList(List<Notification> list) {
|
|
return CollectionUtil.map(list, notificationLifter);
|
|
}
|
|
|
|
private void fullyRefresh() {
|
|
adapter.clear();
|
|
notifications.clear();
|
|
sendFetchNotificationsRequest(null, null, FetchEnd.TOP, -1);
|
|
}
|
|
}
|