262 lines
7.5 KiB
Java
262 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.HashMap;
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import java.util.List;
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import java.util.Timer;
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import java.util.TimerTask;
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import android.app.Activity;
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import android.app.Fragment;
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import android.app.FragmentTransaction;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteStatement;
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import android.os.Bundle;
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import android.preference.PreferenceManager;
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import android.provider.BaseColumns;
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import android.util.Log;
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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.AbsListView;
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import android.widget.AdapterView;
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import android.widget.AdapterView.OnItemClickListener;
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import android.widget.ListView;
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import android.widget.SimpleCursorAdapter;
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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.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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protected FeedsListAdapter m_adapter;
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protected SharedPreferences m_prefs;
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protected int m_activeFeedId;
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protected Gson m_gson = new Gson();
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protected Cursor m_cursor;
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protected SQLiteDatabase m_db;
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private Timer m_timer;
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private TimerTask m_updateTask = new TimerTask() {
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@Override
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public void run() {
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getActivity().runOnUiThread(new Runnable() {
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@Override
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public void run() {
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updateSelf();
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}
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});
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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_activeFeedId = savedInstanceState.getInt("activeFeedId");
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}
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View view = inflater.inflate(R.layout.feeds_fragment, container, false);
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DatabaseHelper helper = new DatabaseHelper(getActivity());
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m_db = helper.getReadableDatabase();
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m_cursor = m_db.query("feeds_unread", null, "unread > 0", null, null, null, "unread DESC");
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m_adapter = new FeedsListAdapter(getActivity(), R.layout.feeds_row, m_cursor,
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new String[] { "title", "unread" }, new int[] { R.id.title, R.id.unread_counter }, 0);
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ListView list = (ListView) view.findViewById(R.id.feeds);
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if (list != null) {
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list.setAdapter(m_adapter);
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list.setOnItemClickListener(this);
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list.setEmptyView(view.findViewById(R.id.no_unread_feeds));
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list.setChoiceMode(AbsListView.CHOICE_MODE_SINGLE);
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}
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View pb = view.findViewById(R.id.loading_progress);
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if (pb != null && m_cursor.getCount() == 0)
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pb.setVisibility(View.VISIBLE);
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m_timer = new Timer("UpdateFeeds");
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m_timer.schedule(m_updateTask, 1000L, 60*1000L);
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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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m_cursor.close();
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m_db.close();
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m_timer.cancel();
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m_timer = null;
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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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}
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private void updateSelf() {
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String sessionId = ((MainActivity)getActivity()).getSessionId();
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ApiRequest task = new ApiRequest(sessionId,
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m_prefs.getString("ttrss_url", null),
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m_prefs.getString("login", null),
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m_prefs.getString("password", null)) {
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@Override
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protected void onPostExecute(JsonElement result) {
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if (result != null && getAuthStatus() == STATUS_OK) {
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try {
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try {
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((MainActivity)getActivity()).setSessionId(getSessionId());
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} catch (NullPointerException e) {
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//
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}
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JsonArray feeds_object = (JsonArray) result.getAsJsonArray();
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Type listType = new TypeToken<List<Feed>>() {}.getType();
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List<Feed> feeds = m_gson.fromJson(feeds_object, listType);
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DatabaseHelper dh = new DatabaseHelper(getActivity());
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SQLiteDatabase db = dh.getWritableDatabase();
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SQLiteStatement stmtUpdate = db.compileStatement("UPDATE feeds SET " +
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"title = ?, feed_url = ?, has_icon = ?, cat_id = ?, last_updated = ? WHERE " +
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BaseColumns._ID + " = ?");
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SQLiteStatement stmtInsert = db.compileStatement("INSERT INTO feeds " +
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"("+BaseColumns._ID+", title, feed_url, has_icon, cat_id, last_updated) " +
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"VALUES (?, ?, ?, ?, ?, ?);");
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for (Feed feed : feeds) {
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Cursor c = db.query("feeds", new String[] { BaseColumns._ID } , BaseColumns._ID + "=?",
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new String[] { String.valueOf(feed.id) }, null, null, null);
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if (c.getCount() != 0) {
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stmtUpdate.bindString(1, feed.title);
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stmtUpdate.bindString(2, feed.feed_url);
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stmtUpdate.bindLong(3, feed.has_icon ? 1 : 0);
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stmtUpdate.bindLong(4, feed.cat_id);
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stmtUpdate.bindLong(5, feed.last_updated);
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stmtUpdate.bindLong(6, feed.id);
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stmtUpdate.execute();
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} else {
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stmtInsert.bindLong(1, feed.id);
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stmtInsert.bindString(2, feed.title);
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stmtInsert.bindString(3, feed.feed_url);
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stmtInsert.bindLong(4, feed.has_icon ? 1 : 0);
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stmtInsert.bindLong(5, feed.cat_id);
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stmtInsert.bindLong(6, feed.last_updated);
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stmtInsert.execute();
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}
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c.close();
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}
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// TODO delete not returned feeds which has no data here
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db.close();
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View pb = getView().findViewById(R.id.loading_progress);
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if (pb != null) pb.setVisibility(View.INVISIBLE);
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updateListView();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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};
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task.execute(new HashMap<String,String>() {
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{
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put("sid", ((MainActivity)getActivity()).getSessionId());
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put("op", "getFeeds");
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put("cat_id", "-3");
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put("unread_only", "0");
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}
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});
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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("activeFeedId", m_activeFeedId);
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}
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class FeedsListAdapter extends SimpleCursorAdapter {
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private Context context;
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private int layout;
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public FeedsListAdapter(Context context, int layout, Cursor c,
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String[] from, int[] to, int flags) {
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super(context, layout, c, from, to, flags);
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this.context = context;
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this.layout = layout;
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}
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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)getActivity().findViewById(R.id.feeds);
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if (list != null) {
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Cursor cursor = (Cursor) list.getItemAtPosition(position);
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if (cursor != null) {
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int feedId = (int) cursor.getLong(0);
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Log.d(TAG, "clicked on feed " + feedId);
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viewFeed(feedId);
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}
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}
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}
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private void viewFeed(int feedId) {
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m_activeFeedId = feedId;
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FragmentTransaction ft = getFragmentManager().beginTransaction();
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HeadlinesFragment frag = new HeadlinesFragment();
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frag.initialize(feedId);
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ft.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out);
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ft.replace(R.id.headlines_container, frag);
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ft.commit();
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m_adapter.notifyDataSetChanged();
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}
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public synchronized void updateListView() {
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m_cursor.requery();
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m_adapter.notifyDataSetChanged();
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}
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}
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