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package fr.gouv.etalab.mastodon.fragments;
/* Copyright 2018 Thomas Schneider
*
* This file is a part of Mastalab
*
* 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.
*
* Mastalab 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 Mastalab; if not,
* see <http://www.gnu.org/licenses>. */
import android.content.Context;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.support.annotation.NonNull;
import android.support.v4.app.Fragment;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RelativeLayout;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
import es.dmoral.toasty.Toasty;
import fr.gouv.etalab.mastodon.R;
import fr.gouv.etalab.mastodon.asynctasks.RetrieveFeedsAsyncTask;
import fr.gouv.etalab.mastodon.client.APIResponse;
import fr.gouv.etalab.mastodon.client.Entities.Attachment;
import fr.gouv.etalab.mastodon.client.Entities.Status;
import fr.gouv.etalab.mastodon.drawers.ImageAdapter;
import fr.gouv.etalab.mastodon.helper.Helper;
import fr.gouv.etalab.mastodon.interfaces.OnRetrieveFeedsInterface;
/**
* Created by Thomas on 05/09/2018.
* Fragment to display media related to status
*/
public class DisplayMediaFragment extends Fragment implements OnRetrieveFeedsInterface {
private boolean flag_loading;
private Context context;
private AsyncTask<Void, Void, Void> asyncTask;
private String max_id;
private RelativeLayout mainLoader, nextElementLoader, textviewNoAction;
private boolean firstLoad;
private String targetedId;
private boolean showMediaOnly, showPinned, showReply;
boolean firstTootsLoaded;
private SharedPreferences sharedpreferences;
private ArrayList<Attachment> attachments;
private ImageAdapter gridAdaper;
public DisplayMediaFragment(){
}
@Override
public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_status_media, container, false);
context = getContext();
Bundle bundle = this.getArguments();
showMediaOnly = true;
//Will allow to load first toots if bookmark != null
firstTootsLoaded = true;
showPinned = false;
max_id = null;
flag_loading = true;
showReply = false;
firstLoad = true;
assert context != null;
sharedpreferences = context.getSharedPreferences(Helper.APP_PREFS, Context.MODE_PRIVATE);
mainLoader = rootView.findViewById(R.id.loader);
nextElementLoader = rootView.findViewById(R.id.loading_next_status);
textviewNoAction = rootView.findViewById(R.id.no_action);
mainLoader.setVisibility(View.VISIBLE);
nextElementLoader.setVisibility(View.GONE);
if (bundle != null) {
targetedId = bundle.getString("targetedid", null);
}
attachments = new ArrayList<>();
gridAdaper = new ImageAdapter(context, attachments);
RecyclerView gridview = rootView.findViewById(R.id.gridview_media);
gridview.setAdapter(gridAdaper);
GridLayoutManager gvLayout = new GridLayoutManager(context, 3);
gridview.setLayoutManager(gvLayout);
gridview.addOnScrollListener(new RecyclerView.OnScrollListener() {
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
int firstVisibleItem = gvLayout.findFirstVisibleItemPosition();
if (dy > 0) {
int visibleItemCount = gvLayout.getChildCount();
int totalItemCount = gvLayout.getItemCount();
if (firstVisibleItem + visibleItemCount == totalItemCount && context != null) {
if (!flag_loading) {
flag_loading = true;
asyncTask = new RetrieveFeedsAsyncTask(context, RetrieveFeedsAsyncTask.Type.USER, targetedId, max_id, showMediaOnly, showPinned, showReply, DisplayMediaFragment.this).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
nextElementLoader.setVisibility(View.VISIBLE);
}
} else {
nextElementLoader.setVisibility(View.GONE);
}
}
}
});
if( context != null) {
asyncTask = new RetrieveFeedsAsyncTask(context, RetrieveFeedsAsyncTask.Type.USER, targetedId, max_id, showMediaOnly, showPinned, showReply,DisplayMediaFragment.this).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
}else {
new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
@Override
public void run() {
if( context != null){
asyncTask = new RetrieveFeedsAsyncTask(context, RetrieveFeedsAsyncTask.Type.USER, targetedId, max_id, showMediaOnly, showPinned, showReply,DisplayMediaFragment.this).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
}
}
}, 500);
}
return rootView;
}
@Override
public void onCreate(Bundle saveInstance)
{
super.onCreate(saveInstance);
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
this.context = context;
}
@Override
public void onDestroy (){
super.onDestroy();
if(asyncTask != null && asyncTask.getStatus() == AsyncTask.Status.RUNNING)
asyncTask.cancel(true);
}
@Override
public void onRetrieveFeeds(APIResponse apiResponse) {
mainLoader.setVisibility(View.GONE);
nextElementLoader.setVisibility(View.GONE);
//Discards 404 - error which can often happen due to toots which have been deleted
if( apiResponse.getError() != null && apiResponse.getError().getStatusCode() != 404 ){
Toasty.error(context, apiResponse.getError().getError(),Toast.LENGTH_LONG).show();
flag_loading = false;
return;
}
List<Status> statuses = apiResponse.getStatuses();
max_id = apiResponse.getMax_id();
if( attachments == null)
attachments = new ArrayList<>();
int previousPosition = this.attachments.size();
flag_loading = (max_id == null );
if( firstLoad && (statuses == null || statuses.size() == 0))
textviewNoAction.setVisibility(View.VISIBLE);
else
textviewNoAction.setVisibility(View.GONE);
if( statuses != null && statuses.size() > 0) {
for(Status status: statuses){
if( status.getMedia_attachments() != null && status.getMedia_attachments().size() > 0) {
attachments.addAll(status.getMedia_attachments());
gridAdaper.notifyItemRangeInserted(previousPosition, attachments.size());
}
}
}
firstLoad = false;
}
}
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