fedilab-Android-App/app/src/main/java/app/fedilab/android/mastodon/ui/fragment/timeline/FragmentMastodonConversatio...

514 lines
25 KiB
Java

package app.fedilab.android.mastodon.ui.fragment.timeline;
/* Copyright 2021 Thomas Schneider
*
* This file is a part of Fedilab
*
* 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.
*
* Fedilab 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 Fedilab; if not,
* see <http://www.gnu.org/licenses>. */
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.ViewModelProvider;
import androidx.preference.PreferenceManager;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import androidx.recyclerview.widget.SimpleItemAnimator;
import java.util.ArrayList;
import java.util.List;
import app.fedilab.android.BaseMainActivity;
import app.fedilab.android.R;
import app.fedilab.android.databinding.FragmentPaginationBinding;
import app.fedilab.android.mastodon.client.entities.api.Conversation;
import app.fedilab.android.mastodon.client.entities.api.Conversations;
import app.fedilab.android.mastodon.client.entities.app.BaseAccount;
import app.fedilab.android.mastodon.client.entities.app.StatusCache;
import app.fedilab.android.mastodon.client.entities.app.Timeline;
import app.fedilab.android.mastodon.exception.DBException;
import app.fedilab.android.mastodon.helper.Helper;
import app.fedilab.android.mastodon.helper.MastodonHelper;
import app.fedilab.android.mastodon.ui.drawer.ConversationAdapter;
import app.fedilab.android.mastodon.viewmodel.mastodon.TimelinesVM;
public class FragmentMastodonConversation extends Fragment implements ConversationAdapter.FetchMoreCallBack {
public UpdateCounters update;
private FragmentPaginationBinding binding;
private TimelinesVM timelinesVM;
private boolean flagLoading;
private List<Conversation> conversationList;
private String max_id, min_id, min_id_fetch_more, max_id_fetch_more;
private ConversationAdapter conversationAdapter;
private LinearLayoutManager mLayoutManager;
private boolean isViewInitialized;
private Conversations initialConversations;
//Allow to recreate data when detaching/attaching fragment
public void recreate() {
initialConversations = null;
if (conversationList != null && conversationList.size() > 0) {
int count = conversationList.size();
conversationList.clear();
conversationList = new ArrayList<>();
if (conversationAdapter != null) {
conversationAdapter.notifyItemRangeRemoved(0, count);
max_id = null;
flagLoading = false;
route(null, false);
}
}
}
public View onCreateView(@NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
flagLoading = false;
binding = FragmentPaginationBinding.inflate(inflater, container, false);
SharedPreferences sharedpreferences = PreferenceManager.getDefaultSharedPreferences(requireActivity());
boolean displayScrollBar = sharedpreferences.getBoolean(getString(R.string.SET_TIMELINE_SCROLLBAR), false);
binding.recyclerView.setVerticalScrollBarEnabled(displayScrollBar);
isViewInitialized = false;
return binding.getRoot();
}
/**
* Router for timelines
*
* @param direction - DIRECTION null if first call, then is set to TOP or BOTTOM depending of scroll
*/
private void route(FragmentMastodonTimeline.DIRECTION direction, boolean fetchingMissing) {
route(direction, fetchingMissing, null);
}
@Override
public void onResume() {
super.onResume();
if (!isViewInitialized) {
isViewInitialized = true;
if (initialConversations != null) {
initializeConversationCommonView(initialConversations);
} else {
route(null, false);
}
}
if (conversationList != null && conversationList.size() > 0) {
route(FragmentMastodonTimeline.DIRECTION.FETCH_NEW, true);
}
}
/**
* Router for timelines
*
* @param direction - DIRECTION null if first call, then is set to TOP or BOTTOM depending of scroll
*/
private void route(FragmentMastodonTimeline.DIRECTION direction, boolean fetchingMissing, Conversation conversationToUpdate) {
if (binding == null || !isAdded() || getActivity() == null) {
return;
}
if (!isAdded()) {
return;
}
SharedPreferences sharedpreferences = PreferenceManager.getDefaultSharedPreferences(requireActivity());
boolean useCache = sharedpreferences.getBoolean(getString(R.string.SET_USE_CACHE), true);
TimelinesVM.TimelineParams timelineParams = new TimelinesVM.TimelineParams(requireActivity(), Timeline.TimeLineEnum.NOTIFICATION, direction, null);
timelineParams.limit = MastodonHelper.notificationsPerCall(requireActivity());
if (direction == FragmentMastodonTimeline.DIRECTION.REFRESH || direction == FragmentMastodonTimeline.DIRECTION.SCROLL_TOP) {
timelineParams.maxId = null;
timelineParams.minId = null;
} else if (direction == FragmentMastodonTimeline.DIRECTION.BOTTOM) {
timelineParams.maxId = fetchingMissing ? max_id_fetch_more : max_id;
timelineParams.minId = null;
} else if (direction == FragmentMastodonTimeline.DIRECTION.TOP) {
timelineParams.minId = fetchingMissing ? min_id_fetch_more : min_id;
timelineParams.maxId = null;
} else {
timelineParams.maxId = max_id;
}
timelineParams.fetchingMissing = fetchingMissing;
if (useCache && direction != FragmentMastodonTimeline.DIRECTION.SCROLL_TOP && direction != FragmentMastodonTimeline.DIRECTION.FETCH_NEW) {
getCachedConversations(direction, fetchingMissing, timelineParams);
} else {
getLiveConversations(direction, fetchingMissing, timelineParams, conversationToUpdate);
}
}
private void getCachedConversations(FragmentMastodonTimeline.DIRECTION direction, boolean fetchingMissing, TimelinesVM.TimelineParams timelineParams) {
if (direction == null) {
timelinesVM.getConversationsCache(conversationList, timelineParams)
.observe(getViewLifecycleOwner(), conversationsCached -> {
if (conversationsCached == null || conversationsCached.conversations == null || conversationsCached.conversations.size() == 0) {
getLiveConversations(null, fetchingMissing, timelineParams, null);
} else {
initialConversations = conversationsCached;
initializeConversationCommonView(conversationsCached);
}
});
} else if (direction == FragmentMastodonTimeline.DIRECTION.BOTTOM) {
timelinesVM.getConversationsCache(conversationList, timelineParams)
.observe(getViewLifecycleOwner(), conversationsBottom -> {
if (conversationsBottom == null || conversationsBottom.conversations == null || conversationsBottom.conversations.size() == 0) {
getLiveConversations(FragmentMastodonTimeline.DIRECTION.BOTTOM, fetchingMissing, timelineParams, null);
} else {
dealWithPagination(conversationsBottom, FragmentMastodonTimeline.DIRECTION.BOTTOM, fetchingMissing, null);
}
});
} else if (direction == FragmentMastodonTimeline.DIRECTION.TOP) {
timelinesVM.getConversationsCache(conversationList, timelineParams)
.observe(getViewLifecycleOwner(), conversationsTop -> {
if (conversationsTop == null || conversationsTop.conversations == null || conversationsTop.conversations.size() == 0) {
getLiveConversations(FragmentMastodonTimeline.DIRECTION.TOP, fetchingMissing, timelineParams, null);
} else {
dealWithPagination(conversationsTop, FragmentMastodonTimeline.DIRECTION.TOP, fetchingMissing, null);
}
});
} else if (direction == FragmentMastodonTimeline.DIRECTION.REFRESH) {
timelinesVM.getConversationsCache(conversationList, timelineParams)
.observe(getViewLifecycleOwner(), notificationsRefresh -> {
if (notificationsRefresh == null || notificationsRefresh.conversations == null || notificationsRefresh.conversations.size() == 0) {
getLiveConversations(direction, fetchingMissing, timelineParams, null);
} else {
if (conversationAdapter != null) {
dealWithPagination(notificationsRefresh, FragmentMastodonTimeline.DIRECTION.REFRESH, true, null);
} else {
initializeConversationCommonView(notificationsRefresh);
}
}
});
}
}
private void getLiveConversations(FragmentMastodonTimeline.DIRECTION direction, boolean fetchingMissing, TimelinesVM.TimelineParams timelineParams, Conversation conversationToUpdate) {
if (direction == null) {
timelinesVM.getConversations(conversationList, timelineParams)
.observe(getViewLifecycleOwner(), conversations -> {
initialConversations = conversations;
initializeConversationCommonView(conversations);
});
} else if (direction == FragmentMastodonTimeline.DIRECTION.BOTTOM) {
timelinesVM.getConversations(conversationList, timelineParams)
.observe(getViewLifecycleOwner(), conversationsBottom -> dealWithPagination(conversationsBottom, FragmentMastodonTimeline.DIRECTION.BOTTOM, fetchingMissing, conversationToUpdate));
} else if (direction == FragmentMastodonTimeline.DIRECTION.TOP) {
timelinesVM.getConversations(conversationList, timelineParams)
.observe(getViewLifecycleOwner(), conversationsTop -> dealWithPagination(conversationsTop, FragmentMastodonTimeline.DIRECTION.TOP, fetchingMissing, conversationToUpdate));
} else if (direction == FragmentMastodonTimeline.DIRECTION.REFRESH || direction == FragmentMastodonTimeline.DIRECTION.SCROLL_TOP || direction == FragmentMastodonTimeline.DIRECTION.FETCH_NEW) {
timelinesVM.getConversations(conversationList, timelineParams)
.observe(getViewLifecycleOwner(), conversationsRefresh -> {
if (conversationAdapter != null) {
dealWithPagination(conversationsRefresh, direction, true, conversationToUpdate);
} else {
initializeConversationCommonView(conversationsRefresh);
}
});
}
}
private void storeMarker(BaseAccount connectedAccount) {
if (mLayoutManager != null) {
int position = mLayoutManager.findFirstVisibleItemPosition();
if (conversationList != null && conversationList.size() > position) {
try {
Conversation conversation = conversationList.get(position);
SharedPreferences sharedpreferences = PreferenceManager.getDefaultSharedPreferences(requireActivity());
SharedPreferences.Editor editor = sharedpreferences.edit();
editor.putString(getString(R.string.SET_INNER_MARKER) + connectedAccount.user_id + connectedAccount.instance + Timeline.TimeLineEnum.CONVERSATION, conversation.id);
editor.apply();
} catch (Exception ignored) {
}
}
}
}
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
initialConversations = null;
binding.loader.setVisibility(View.VISIBLE);
binding.recyclerView.setVisibility(View.GONE);
timelinesVM = new ViewModelProvider(FragmentMastodonConversation.this).get(TimelinesVM.class);
max_id = null;
}
/**
* Intialize the view for conversations
*
* @param conversations {@link Conversations}
*/
private void initializeConversationCommonView(final Conversations conversations) {
flagLoading = false;
if (!isViewInitialized) {
return;
}
if (binding == null || !isAdded() || getActivity() == null) {
return;
}
RecyclerView.ItemAnimator animator = binding.recyclerView.getItemAnimator();
if (animator instanceof SimpleItemAnimator) {
((SimpleItemAnimator) animator).setSupportsChangeAnimations(false);
}
binding.loader.setVisibility(View.GONE);
binding.noAction.setVisibility(View.GONE);
binding.swipeContainer.setRefreshing(false);
binding.swipeContainer.setOnRefreshListener(() -> {
binding.swipeContainer.setRefreshing(true);
flagLoading = false;
route(FragmentMastodonTimeline.DIRECTION.REFRESH, true);
});
if (conversations == null || conversations.conversations == null || conversations.conversations.size() == 0) {
binding.noAction.setVisibility(View.VISIBLE);
binding.recyclerView.setVisibility(View.GONE);
return;
} else {
binding.noAction.setVisibility(View.GONE);
binding.recyclerView.setVisibility(View.VISIBLE);
}
flagLoading = conversations.pagination.max_id == null;
if (conversationAdapter != null && conversationList != null) {
int size = conversationList.size();
conversationList.clear();
conversationList = new ArrayList<>();
conversationAdapter.notifyItemRangeRemoved(0, size);
}
if (conversationList == null) {
conversationList = new ArrayList<>();
}
conversationList.addAll(conversations.conversations);
if (max_id == null || (conversations.pagination.max_id != null && Helper.compareTo(conversations.pagination.max_id, max_id) < 0)) {
max_id = conversations.pagination.max_id;
}
if (min_id == null || (conversations.pagination.min_id != null && Helper.compareTo(conversations.pagination.min_id, min_id) > 0)) {
min_id = conversations.pagination.min_id;
}
conversationAdapter = new ConversationAdapter(conversationList);
conversationAdapter.fetchMoreCallBack = this;
mLayoutManager = new LinearLayoutManager(requireActivity());
binding.recyclerView.setLayoutManager(mLayoutManager);
binding.recyclerView.setAdapter(conversationAdapter);
binding.recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
if (requireActivity() instanceof BaseMainActivity) {
if (dy < 0 && !((BaseMainActivity) requireActivity()).getFloatingVisibility())
((BaseMainActivity) requireActivity()).manageFloatingButton(true);
if (dy > 0 && ((BaseMainActivity) requireActivity()).getFloatingVisibility())
((BaseMainActivity) requireActivity()).manageFloatingButton(false);
}
int firstVisibleItem = mLayoutManager.findFirstVisibleItemPosition();
if (dy > 0) {
int visibleItemCount = mLayoutManager.getChildCount();
int totalItemCount = mLayoutManager.getItemCount();
if (firstVisibleItem + visibleItemCount == totalItemCount) {
if (!flagLoading) {
flagLoading = true;
binding.loadingNextElements.setVisibility(View.VISIBLE);
route(FragmentMastodonTimeline.DIRECTION.BOTTOM, false);
}
} else {
binding.loadingNextElements.setVisibility(View.GONE);
}
} else if (firstVisibleItem == 0) { //Scroll top and item is zero
if (!flagLoading) {
flagLoading = true;
binding.loadingNextElements.setVisibility(View.VISIBLE);
route(FragmentMastodonTimeline.DIRECTION.TOP, false);
}
}
}
});
}
@Override
public void onDestroyView() {
if (isAdded()) {
storeMarker(Helper.getCurrentAccount(requireActivity()));
}
super.onDestroyView();
}
@Override
public void onPause() {
storeMarker(Helper.getCurrentAccount(requireActivity()));
super.onPause();
}
/**
* Update view and pagination when scrolling down
*
* @param fetched_conversations Conversations
*/
private synchronized void dealWithPagination(Conversations fetched_conversations, FragmentMastodonTimeline.DIRECTION direction, boolean fetchingMissing, Conversation conversationToUpdate) {
if (binding == null || !isAdded() || getActivity() == null) {
return;
}
binding.swipeContainer.setRefreshing(false);
binding.loadingNextElements.setVisibility(View.GONE);
flagLoading = false;
if (conversationList != null && fetched_conversations != null && fetched_conversations.conversations != null && fetched_conversations.conversations.size() > 0) {
try {
if (conversationToUpdate != null) {
new Thread(() -> {
StatusCache statusCache = new StatusCache();
statusCache.instance = BaseMainActivity.currentInstance;
statusCache.user_id = BaseMainActivity.currentUserID;
conversationToUpdate.isFetchMore = false;
statusCache.conversation = conversationToUpdate;
statusCache.status_id = conversationToUpdate.id;
try {
new StatusCache(requireActivity()).updateIfExists(statusCache);
} catch (DBException e) {
e.printStackTrace();
}
}).start();
}
} catch (Exception ignored) {
}
flagLoading = fetched_conversations.pagination.max_id == null;
binding.noAction.setVisibility(View.GONE);
//Update the timeline with new statuses
int insertedConversations = updateConversationListWith(fetched_conversations.conversations);
//For these directions, the app will display counters for new messages
if (insertedConversations >= 0 && update != null && (direction == FragmentMastodonTimeline.DIRECTION.FETCH_NEW || direction == FragmentMastodonTimeline.DIRECTION.SCROLL_TOP || direction == FragmentMastodonTimeline.DIRECTION.REFRESH)) {
update.onUpdateConversation(insertedConversations);
}
if (direction == FragmentMastodonTimeline.DIRECTION.TOP && fetchingMissing) {
binding.recyclerView.scrollToPosition(getPosition(fetched_conversations.conversations.get(fetched_conversations.conversations.size() - 1)) + 1);
}
if (!fetchingMissing) {
if (fetched_conversations.pagination.max_id == null) {
flagLoading = true;
} else if (max_id == null || Helper.compareTo(fetched_conversations.pagination.max_id, max_id) < 0) {
max_id = fetched_conversations.pagination.max_id;
}
if (min_id == null || (fetched_conversations.pagination.min_id != null && Helper.compareTo(fetched_conversations.pagination.min_id, min_id) > 0)) {
min_id = fetched_conversations.pagination.min_id;
}
}
} else if (direction == FragmentMastodonTimeline.DIRECTION.BOTTOM) {
flagLoading = true;
}
if (direction == FragmentMastodonTimeline.DIRECTION.SCROLL_TOP) {
new Handler().postDelayed(() -> binding.recyclerView.scrollToPosition(0), 200);
}
}
/**
* Return the position of the convnersation in the ArrayList
*
* @param conversation - Conversation to fetch
* @return position or -1 if not found
*/
private int getPosition(Conversation conversation) {
int position = 0;
boolean found = false;
for (Conversation _conversation : conversationList) {
if (conversation != null && _conversation.id.compareTo(conversation.id) == 0) {
found = true;
break;
}
position++;
}
return found ? position : -1;
}
/**
* Update the timeline with received Conversations
*
* @param conversationsReceived - List<Conversation> Conversation received
*/
private int updateConversationListWith(List<Conversation> conversationsReceived) {
int insertedConversations = 0;
if (conversationsReceived != null && conversationsReceived.size() > 0) {
for (Conversation conversationReceived : conversationsReceived) {
int position = 0;
//We loop through messages already in the timeline
if (conversationList != null) {
conversationAdapter.notifyItemRangeChanged(0, conversationList.size());
for (Conversation conversationsAlreadyPresent : conversationList) {
//We compare the date of each status and we only add status having a date greater than the another, it is inserted at this position
//Pinned messages are ignored because their date can be older
if (Helper.compareTo(conversationReceived.id, conversationsAlreadyPresent.id) > 0) {
if (!conversationList.contains(conversationReceived)) {
conversationList.add(position, conversationReceived);
conversationAdapter.notifyItemInserted(position);
if (!conversationReceived.cached) {
insertedConversations++;
}
}
break;
}
position++;
}
//Statuses added at the bottom, we flag them by position = -2 for not dealing with them and fetch more
if (position == conversationList.size() && !conversationList.contains(conversationReceived)) {
conversationList.add(position, conversationReceived);
conversationAdapter.notifyItemInserted(position);
}
}
}
}
return insertedConversations;
}
public void scrollToTop() {
if (binding != null) {
binding.swipeContainer.setRefreshing(true);
flagLoading = false;
route(FragmentMastodonTimeline.DIRECTION.SCROLL_TOP, true);
}
}
@Override
public void onClickMinId(String min_id, Conversation conversationToUpdate) {
min_id_fetch_more = min_id;
route(FragmentMastodonTimeline.DIRECTION.TOP, true, conversationToUpdate);
}
@Override
public void onClickMaxId(String max_id, Conversation conversationToUpdate) {
max_id_fetch_more = max_id;
route(FragmentMastodonTimeline.DIRECTION.BOTTOM, true, conversationToUpdate);
}
public interface UpdateCounters {
void onUpdateConversation(int count);
}
}