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() { @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() { @Override public void onResponse(JSONArray response) { List 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 getHeaders() throws AuthFailureError { Map headers = new HashMap<>(); headers.put("Authorization", "Bearer " + accessToken); return headers; } }; VolleySingleton.getInstance(getContext()).addToRequestQueue(request); } private void sendFetchTimelineRequest() { sendFetchTimelineRequest(null); } public void onFetchTimelineSuccess(List 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 responseListener) { if (responseListener == null) { // Use a dummy listener if one wasn't specified so the request can be constructed. responseListener = new Response.Listener() { @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 getHeaders() throws AuthFailureError { Map 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 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() { @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() { @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(); } } }