chinwag-android/app/src/main/java/com/keylesspalace/tusky/TimelineFragment.java

414 lines
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Java
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package com.keylesspalace.tusky;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.content.ContextCompat;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.widget.DividerItemDecoration;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.PopupMenu;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonArrayRequest;
import com.android.volley.toolbox.JsonObjectRequest;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class TimelineFragment extends Fragment implements
SwipeRefreshLayout.OnRefreshListener, StatusActionListener, FooterActionListener {
public enum Kind {
HOME,
MENTIONS,
PUBLIC,
}
private String domain = null;
private String accessToken = null;
/** ID of the account that is currently logged-in. */
private String userAccountId = null;
/** Username of the account that is currently logged-in. */
private String userUsername = null;
private SwipeRefreshLayout swipeRefreshLayout;
private RecyclerView recyclerView;
private TimelineAdapter adapter;
private Kind kind;
private LinearLayoutManager layoutManager;
private EndlessOnScrollListener scrollListener;
private TabLayout.OnTabSelectedListener onTabSelectedListener;
public static TimelineFragment newInstance(Kind kind) {
TimelineFragment fragment = new TimelineFragment();
Bundle arguments = new Bundle();
arguments.putString("kind", kind.name());
fragment.setArguments(arguments);
return fragment;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
kind = Kind.valueOf(getArguments().getString("kind"));
View rootView = inflater.inflate(R.layout.fragment_timeline, container, false);
Context context = getContext();
SharedPreferences preferences = context.getSharedPreferences(
getString(R.string.preferences_file_key), Context.MODE_PRIVATE);
domain = preferences.getString("domain", null);
accessToken = preferences.getString("accessToken", null);
assert(domain != null);
assert(accessToken != null);
// Setup the SwipeRefreshLayout.
swipeRefreshLayout = (SwipeRefreshLayout) rootView.findViewById(R.id.swipe_refresh_layout);
swipeRefreshLayout.setOnRefreshListener(this);
// Setup the RecyclerView.
recyclerView = (RecyclerView) rootView.findViewById(R.id.recycler_view);
recyclerView.setHasFixedSize(true);
layoutManager = new LinearLayoutManager(context);
recyclerView.setLayoutManager(layoutManager);
DividerItemDecoration divider = new DividerItemDecoration(
context, layoutManager.getOrientation());
Drawable drawable = ContextCompat.getDrawable(context, R.drawable.status_divider);
divider.setDrawable(drawable);
recyclerView.addItemDecoration(divider);
scrollListener = new EndlessOnScrollListener(layoutManager) {
@Override
public void onLoadMore(int page, int totalItemsCount, RecyclerView view) {
TimelineAdapter adapter = (TimelineAdapter) view.getAdapter();
Status status = adapter.getItem(adapter.getItemCount() - 2);
if (status != null) {
sendFetchTimelineRequest(status.getId());
} else {
sendFetchTimelineRequest();
}
}
};
recyclerView.addOnScrollListener(scrollListener);
adapter = new TimelineAdapter(this, this);
recyclerView.setAdapter(adapter);
TabLayout layout = (TabLayout) getActivity().findViewById(R.id.tab_layout);
onTabSelectedListener = new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {}
@Override
public void onTabUnselected(TabLayout.Tab tab) {}
@Override
public void onTabReselected(TabLayout.Tab tab) {
jumpToTop();
}
};
layout.addOnTabSelectedListener(onTabSelectedListener);
sendUserInfoRequest();
sendFetchTimelineRequest();
return rootView;
}
@Override
public void onDestroyView() {
TabLayout tabLayout = (TabLayout) getActivity().findViewById(R.id.tab_layout);
tabLayout.removeOnTabSelectedListener(onTabSelectedListener);
super.onDestroyView();
}
private void jumpToTop() {
layoutManager.scrollToPositionWithOffset(0, 0);
scrollListener.reset();
}
private void sendUserInfoRequest() {
sendRequest(Request.Method.GET, getString(R.string.endpoint_verify_credentials), null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
userAccountId = response.getString("id");
userUsername = response.getString("acct");
} catch (JSONException e) {
//TODO: Help
assert(false);
}
}
});
}
private void sendFetchTimelineRequest(final String fromId) {
String endpoint;
switch (kind) {
default:
case HOME: {
endpoint = getString(R.string.endpoint_timelines_home);
break;
}
case MENTIONS: {
endpoint = getString(R.string.endpoint_timelines_mentions);
break;
}
case PUBLIC: {
endpoint = getString(R.string.endpoint_timelines_public);
break;
}
}
String url = "https://" + domain + endpoint;
if (fromId != null) {
url += "?max_id=" + fromId;
}
JsonArrayRequest request = new JsonArrayRequest(url,
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray response) {
List<Status> statuses = null;
try {
statuses = Status.parse(response);
} catch (JSONException e) {
onFetchTimelineFailure(e);
}
if (statuses != null) {
onFetchTimelineSuccess(statuses, fromId != null);
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
onFetchTimelineFailure(error);
}
}) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<>();
headers.put("Authorization", "Bearer " + accessToken);
return headers;
}
};
VolleySingleton.getInstance(getContext()).addToRequestQueue(request);
}
private void sendFetchTimelineRequest() {
sendFetchTimelineRequest(null);
}
public void onFetchTimelineSuccess(List<Status> statuses, boolean added) {
if (added) {
adapter.addItems(statuses);
} else {
adapter.update(statuses);
}
showFetchTimelineRetry(false);
swipeRefreshLayout.setRefreshing(false);
}
public void onFetchTimelineFailure(Exception exception) {
showFetchTimelineRetry(true);
swipeRefreshLayout.setRefreshing(false);
}
private void showFetchTimelineRetry(boolean show) {
RecyclerView.ViewHolder viewHolder =
recyclerView.findViewHolderForAdapterPosition(adapter.getItemCount() - 1);
if (viewHolder != null) {
TimelineAdapter.FooterViewHolder holder = (TimelineAdapter.FooterViewHolder) viewHolder;
holder.showRetry(show);
}
}
public void onRefresh() {
sendFetchTimelineRequest();
}
private void sendRequest(
int method, String endpoint, JSONObject parameters,
@Nullable Response.Listener<JSONObject> responseListener) {
if (responseListener == null) {
// Use a dummy listener if one wasn't specified so the request can be constructed.
responseListener = new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {}
};
}
String url = "https://" + domain + endpoint;
JsonObjectRequest request = new JsonObjectRequest(
method, url, parameters, responseListener,
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
System.err.println(error.getMessage());
}
}) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<>();
headers.put("Authorization", "Bearer " + accessToken);
return headers;
}
};
VolleySingleton.getInstance(getContext()).addToRequestQueue(request);
}
private void postRequest(String endpoint) {
sendRequest(Request.Method.POST, endpoint, null, null);
}
public void onReply(int position) {
Status status = adapter.getItem(position);
String inReplyToId = status.getId();
Status.Mention[] mentions = status.getMentions();
List<String> mentionedUsernames = new ArrayList<>();
for (int i = 0; i < mentions.length; i++) {
mentionedUsernames.add(mentions[i].getUsername());
}
mentionedUsernames.add(status.getUsername());
mentionedUsernames.remove(userUsername);
Intent intent = new Intent(getContext(), ComposeActivity.class);
intent.putExtra("in_reply_to_id", inReplyToId);
intent.putExtra("mentioned_usernames", mentionedUsernames.toArray(new String[0]));
startActivity(intent);
}
public void onReblog(final boolean reblog, final int position) {
final Status status = adapter.getItem(position);
String id = status.getId();
String endpoint;
if (reblog) {
endpoint = String.format(getString(R.string.endpoint_reblog), id);
} else {
endpoint = String.format(getString(R.string.endpoint_unreblog), id);
}
sendRequest(Request.Method.POST, endpoint, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
status.setReblogged(reblog);
adapter.notifyItemChanged(position);
}
});
}
public void onFavourite(final boolean favourite, final int position) {
final Status status = adapter.getItem(position);
String id = status.getId();
String endpoint;
if (favourite) {
endpoint = String.format(getString(R.string.endpoint_favourite), id);
} else {
endpoint = String.format(getString(R.string.endpoint_unfavourite), id);
}
sendRequest(Request.Method.POST, endpoint, null, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
status.setFavourited(favourite);
adapter.notifyItemChanged(position);
}
});
}
private void follow(String id) {
String endpoint = String.format(getString(R.string.endpoint_follow), id);
postRequest(endpoint);
}
private void block(String id) {
String endpoint = String.format(getString(R.string.endpoint_block), id);
postRequest(endpoint);
}
private void delete(String id) {
String endpoint = String.format(getString(R.string.endpoint_delete), id);
sendRequest(Request.Method.DELETE, endpoint, null, null);
}
public void onMore(View view, final int position) {
Status status = adapter.getItem(position);
final String id = status.getId();
final String accountId = status.getAccountId();
PopupMenu popup = new PopupMenu(getContext(), view);
// Give a different menu depending on whether this is the user's own toot or not.
if (userAccountId == null || !userAccountId.equals(accountId)) {
popup.inflate(R.menu.status_more);
} else {
popup.inflate(R.menu.status_more_for_user);
}
popup.setOnMenuItemClickListener(
new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
switch (item.getItemId()) {
case R.id.status_follow: {
follow(accountId);
return true;
}
case R.id.status_block: {
block(accountId);
return true;
}
case R.id.status_delete: {
delete(id);
adapter.removeItem(position);
return true;
}
}
return false;
}
});
popup.show();
}
public void onViewMedia(String url, Status.MediaAttachment.Type type) {
switch (type) {
case IMAGE: {
Fragment newFragment = ViewMediaFragment.newInstance(url);
FragmentManager manager = getFragmentManager();
manager.beginTransaction()
.add(R.id.overlay_fragment_container, newFragment)
.addToBackStack(null)
.commit();
break;
}
case VIDEO: {
Intent intent = new Intent(getContext(), ViewVideoActivity.class);
intent.putExtra("url", url);
startActivity(intent);
break;
}
}
}
public void onLoadMore() {
Status status = adapter.getItem(adapter.getItemCount() - 2);
if (status != null) {
sendFetchTimelineRequest(status.getId());
} else {
sendFetchTimelineRequest();
}
}
}