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

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/* Copyright 2017 Andrew Dawson
*
* This file is part of Tusky.
*
* Tusky 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.
*
* Tusky 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 Tusky. If not, see
* <http://www.gnu.org/licenses/>. */
package com.keylesspalace.tusky;
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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;
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import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
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import android.support.v7.widget.DividerItemDecoration;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
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import com.android.volley.AuthFailureError;
import com.android.volley.Request;
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import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.keylesspalace.tusky.entity.Account;
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import java.util.HashMap;
import java.util.List;
import java.util.Map;
import retrofit2.Call;
import retrofit2.Callback;
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public class AccountFragment extends Fragment implements AccountActionListener,
FooterActionListener {
private static final String TAG = "Account"; // logging tag and Volley request tag
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public enum Type {
FOLLOWS,
FOLLOWERS,
BLOCKS,
}
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private Type type;
private String accountId;
private String domain;
private String accessToken;
private RecyclerView recyclerView;
private LinearLayoutManager layoutManager;
private EndlessOnScrollListener scrollListener;
private AccountAdapter adapter;
private TabLayout.OnTabSelectedListener onTabSelectedListener;
public static AccountFragment newInstance(Type type) {
Bundle arguments = new Bundle();
AccountFragment fragment = new AccountFragment();
arguments.putString("type", type.name());
fragment.setArguments(arguments);
return fragment;
}
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public static AccountFragment newInstance(Type type, String accountId) {
Bundle arguments = new Bundle();
AccountFragment fragment = new AccountFragment();
arguments.putString("type", type.name());
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arguments.putString("accountId", accountId);
fragment.setArguments(arguments);
return fragment;
}
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@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Bundle arguments = getArguments();
type = Type.valueOf(arguments.getString("type"));
accountId = arguments.getString("accountId");
SharedPreferences preferences = getContext().getSharedPreferences(
getString(R.string.preferences_file_key), Context.MODE_PRIVATE);
domain = preferences.getString("domain", null);
accessToken = preferences.getString("accessToken", null);
}
@Override
public void onDestroy() {
VolleySingleton.getInstance(getContext()).cancelAll(TAG);
super.onDestroy();
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
@Nullable Bundle savedInstanceState) {
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View rootView = inflater.inflate(R.layout.fragment_account, container, false);
Context context = getContext();
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 = ThemeUtils.getDrawable(context, R.attr.status_divider_drawable,
R.drawable.status_divider_dark);
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divider.setDrawable(drawable);
recyclerView.addItemDecoration(divider);
scrollListener = new EndlessOnScrollListener(layoutManager) {
@Override
public void onLoadMore(int page, int totalItemsCount, RecyclerView view) {
AccountAdapter adapter = (AccountAdapter) view.getAdapter();
Account account = adapter.getItem(adapter.getItemCount() - 2);
if (account != null) {
fetchAccounts(account.id);
} else {
fetchAccounts();
}
}
};
recyclerView.addOnScrollListener(scrollListener);
if (type == Type.BLOCKS) {
adapter = new BlocksAdapter(this, this);
} else {
adapter = new FollowAdapter(this, this);
}
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recyclerView.setAdapter(adapter);
if (jumpToTopAllowed()) {
TabLayout layout = (TabLayout) getActivity().findViewById(R.id.tab_layout);
onTabSelectedListener = new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
}
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@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
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@Override
public void onTabReselected(TabLayout.Tab tab) {
jumpToTop();
}
};
layout.addOnTabSelectedListener(onTabSelectedListener);
}
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return rootView;
}
@Override
public void onDestroyView() {
if (jumpToTopAllowed()) {
TabLayout tabLayout = (TabLayout) getActivity().findViewById(R.id.tab_layout);
tabLayout.removeOnTabSelectedListener(onTabSelectedListener);
}
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super.onDestroyView();
}
private void fetchAccounts(final String fromId) {
MastodonAPI api = ((BaseActivity) getActivity()).mastodonAPI;
Callback<List<Account>> cb = new Callback<List<Account>>() {
@Override
public void onResponse(Call<List<Account>> call, retrofit2.Response<List<Account>> response) {
onFetchAccountsSuccess(response.body(), fromId);
}
@Override
public void onFailure(Call<List<Account>> call, Throwable t) {
onFetchAccountsFailure((Exception) t);
}
};
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switch (type) {
default:
case FOLLOWS: {
api.accountFollowing(accountId, fromId, null, null).enqueue(cb);
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break;
}
case FOLLOWERS: {
api.accountFollowers(accountId, fromId, null, null).enqueue(cb);
break;
}
case BLOCKS: {
api.blocks(fromId, null, null).enqueue(cb);
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break;
}
}
}
private void fetchAccounts() {
fetchAccounts(null);
}
private static boolean findAccount(List<Account> accounts, String id) {
for (Account account : accounts) {
if (account.id.equals(id)) {
return true;
}
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}
return false;
}
private void onFetchAccountsSuccess(List<Account> accounts, String fromId) {
if (fromId != null) {
if (accounts.size() > 0 && !findAccount(accounts, fromId)) {
setFetchTimelineState(FooterViewHolder.State.LOADING);
adapter.addItems(accounts);
} else {
setFetchTimelineState(FooterViewHolder.State.END_OF_TIMELINE);
}
} else {
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if (accounts.size() > 0) {
setFetchTimelineState(FooterViewHolder.State.LOADING);
adapter.update(accounts);
} else {
setFetchTimelineState(FooterViewHolder.State.END_OF_TIMELINE);
}
}
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}
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private void onFetchAccountsFailure(Exception exception) {
setFetchTimelineState(FooterViewHolder.State.RETRY);
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Log.e(TAG, "Fetch failure: " + exception.getMessage());
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}
private void setFetchTimelineState(FooterViewHolder.State state) {
// Set the adapter to set its state when it's bound, if the current Footer is offscreen.
adapter.setFooterState(state);
// Check if it's onscreen, and update it directly if it is.
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RecyclerView.ViewHolder viewHolder =
recyclerView.findViewHolderForAdapterPosition(adapter.getItemCount() - 1);
if (viewHolder != null) {
FooterViewHolder holder = (FooterViewHolder) viewHolder;
holder.setState(state);
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}
}
public void onLoadMore() {
Account account = adapter.getItem(adapter.getItemCount() - 2);
if (account != null) {
fetchAccounts(account.id);
} else {
fetchAccounts();
}
}
public void onViewAccount(String id) {
Intent intent = new Intent(getContext(), AccountActivity.class);
intent.putExtra("id", id);
startActivity(intent);
}
public void onBlock(final boolean block, final String id, final int position) {
String endpoint;
if (!block) {
endpoint = String.format(getString(R.string.endpoint_unblock), id);
} else {
endpoint = String.format(getString(R.string.endpoint_block), id);
}
String url = "https://" + domain + endpoint;
StringRequest request = new StringRequest(Request.Method.POST, url,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
onBlockSuccess(block, position);
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
onBlockFailure(block, id);
}
}) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<>();
headers.put("Authorization", "Bearer " + accessToken);
return headers;
}
};
request.setTag(TAG);
VolleySingleton.getInstance(getContext()).addToRequestQueue(request);
}
private void onBlockSuccess(boolean blocked, int position) {
BlocksAdapter blocksAdapter = (BlocksAdapter) adapter;
blocksAdapter.setBlocked(blocked, position);
}
private void onBlockFailure(boolean block, String id) {
String verb;
if (block) {
verb = "block";
} else {
verb = "unblock";
}
Log.e(TAG, String.format("Failed to %s account id %s", verb, id));
}
private boolean jumpToTopAllowed() {
return type != Type.BLOCKS;
}
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private void jumpToTop() {
layoutManager.scrollToPositionWithOffset(0, 0);
scrollListener.reset();
}
}