292 lines
7.5 KiB
Java
292 lines
7.5 KiB
Java
package org.fox.ttrss;
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import java.lang.reflect.Type;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.List;
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import android.app.Activity;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.os.Bundle;
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import android.os.Parcel;
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import android.os.Parcelable;
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import android.preference.PreferenceManager;
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import android.support.v4.app.Fragment;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.AdapterView;
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import android.widget.AdapterView.OnItemClickListener;
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import android.widget.ArrayAdapter;
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import android.widget.ListView;
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import android.widget.TextView;
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import com.google.gson.Gson;
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import com.google.gson.JsonArray;
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import com.google.gson.JsonElement;
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import com.google.gson.JsonObject;
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import com.google.gson.reflect.TypeToken;
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public class FeedsFragment extends Fragment implements OnItemClickListener {
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private final String TAG = this.getClass().getSimpleName();
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private SharedPreferences m_prefs;
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private FeedListAdapter m_adapter;
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private FeedList m_feeds = new FeedList();
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private OnFeedSelectedListener m_feedSelectedListener;
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private int m_selectedFeedId;
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private class FeedList extends ArrayList<Feed> implements Parcelable {
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@Override
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public int describeContents() {
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return 0;
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}
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@Override
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public void writeToParcel(Parcel out, int flags) {
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out.writeInt(this.size());
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for (Feed feed : this) {
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out.writeParcelable(feed, flags);
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}
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}
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public void readFromParcel(Parcel in) {
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int length = in.readInt();
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for (int i = 0; i < length; i++) {
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Feed feed = in.readParcelable(Feed.class.getClassLoader());
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this.add(feed);
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}
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}
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}
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public interface OnFeedSelectedListener {
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public void onFeedSelected(Feed feed);
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}
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public void showLoading(boolean show) {
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View v = getView();
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if (v != null) {
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v = v.findViewById(R.id.loading_container);
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if (v != null)
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v.setVisibility(show ? View.VISIBLE : View.GONE);
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}
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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if (savedInstanceState != null) {
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m_selectedFeedId = savedInstanceState.getInt("selectedFeedId");
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m_feeds = savedInstanceState.getParcelable("feeds");
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}
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View view = inflater.inflate(R.layout.feeds_fragment, container, false);
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ListView list = (ListView)view.findViewById(R.id.feeds);
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m_adapter = new FeedListAdapter(getActivity(), R.layout.feeds_row, (ArrayList<Feed>)m_feeds);
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list.setAdapter(m_adapter);
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list.setOnItemClickListener(this);
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if (m_feeds == null || m_feeds.size() == 0)
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refresh();
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else
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view.findViewById(R.id.loading_container).setVisibility(View.GONE);
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return view;
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}
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@Override
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public void onDestroy() {
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super.onDestroy();
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}
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@Override
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public void onAttach(Activity activity) {
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super.onAttach(activity);
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m_prefs = PreferenceManager.getDefaultSharedPreferences(getActivity().getApplicationContext());
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m_feedSelectedListener = (OnFeedSelectedListener) activity;
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}
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@Override
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public void onSaveInstanceState (Bundle out) {
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super.onSaveInstanceState(out);
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out.putInt("selectedFeedId", m_selectedFeedId);
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out.putParcelable("feeds", m_feeds);
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}
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@Override
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public void onItemClick(AdapterView<?> av, View view, int position, long id) {
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ListView list = (ListView)av;
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if (list != null) {
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Feed feed = (Feed)list.getItemAtPosition(position);
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m_feedSelectedListener.onFeedSelected(feed);
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m_selectedFeedId = feed.id;
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m_adapter.notifyDataSetChanged();
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}
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}
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public void refresh() {
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FeedsRequest fr = new FeedsRequest();
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fr.setApi(m_prefs.getString("ttrss_url", null));
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final String sessionId = ((MainActivity)getActivity()).getSessionId();
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final boolean unreadOnly = ((MainActivity)getActivity()).getUnreadOnly();
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if (sessionId != null) {
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HashMap<String,String> map = new HashMap<String,String>() {
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{
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put("op", "getFeeds");
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put("sid", sessionId);
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put("cat_id", "-3");
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if (unreadOnly) {
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put("unread_only", String.valueOf(unreadOnly));
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}
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}
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};
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fr.execute(map);
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}
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}
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public void setLoadingStatus(int status, boolean showProgress) {
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TextView tv = (TextView)getView().findViewById(R.id.loading_message);
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if (tv != null) {
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tv.setText(status);
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}
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View pb = getView().findViewById(R.id.loading_progress);
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if (pb != null) {
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pb.setVisibility(showProgress ? View.VISIBLE : View.GONE);
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}
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}
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private class FeedsRequest extends ApiRequest {
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protected void onPostExecute(JsonElement result) {
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if (result != null) {
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try {
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JsonObject rv = result.getAsJsonObject();
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Gson gson = new Gson();
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int status = rv.get("status").getAsInt();
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if (status == 0) {
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JsonArray content = rv.get("content").getAsJsonArray();
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if (content != null) {
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Type listType = new TypeToken<List<Feed>>() {}.getType();
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final List<Feed> feeds = gson.fromJson(content, listType);
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getActivity().runOnUiThread(new Runnable() {
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public void run() {
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m_feeds.clear();
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for (Feed f : feeds)
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m_feeds.add(f);
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Collections.sort(m_feeds);
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m_adapter.notifyDataSetInvalidated();
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showLoading(false);
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}
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});
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}
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} else {
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MainActivity activity = (MainActivity)getActivity();
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activity.login();
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showLoading(false);
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}
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} catch (Exception e) {
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e.printStackTrace();
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// report invalid object received
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}
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} else {
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// report null object received
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}
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return;
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}
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}
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private class FeedListAdapter extends ArrayAdapter<Feed> {
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private ArrayList<Feed> items;
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public static final int VIEW_NORMAL = 0;
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public static final int VIEW_SELECTED = 1;
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public static final int VIEW_COUNT = VIEW_SELECTED+1;
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public FeedListAdapter(Context context, int textViewResourceId, ArrayList<Feed> items) {
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super(context, textViewResourceId, items);
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this.items = items;
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}
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public int getViewTypeCount() {
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return VIEW_COUNT;
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}
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@Override
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public int getItemViewType(int position) {
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Feed feed = items.get(position);
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if (feed.id == m_selectedFeedId) {
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return VIEW_SELECTED;
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} else {
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return VIEW_NORMAL;
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}
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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View v = convertView;
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Feed feed = items.get(position);
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if (v == null) {
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int layoutId = R.layout.feeds_row;
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switch (getItemViewType(position)) {
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case VIEW_SELECTED:
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layoutId = R.layout.feeds_row_selected;
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break;
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}
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LayoutInflater vi = (LayoutInflater)getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
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v = vi.inflate(layoutId, null);
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}
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TextView tt = (TextView) v.findViewById(R.id.title);
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if (tt != null) {
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tt.setText(feed.title);
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}
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TextView tu = (TextView) v.findViewById(R.id.unread_counter);
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if (tu != null) {
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tu.setText(String.valueOf(feed.unread));
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tu.setVisibility((feed.unread > 0) ? View.VISIBLE : View.INVISIBLE);
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}
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return v;
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}
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}
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}
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