374 lines
11 KiB
Java
374 lines
11 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 org.jsoup.Jsoup;
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import android.app.Activity;
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import android.app.FragmentTransaction;
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import android.content.Intent;
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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.Menu;
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import android.view.MenuInflater;
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import android.view.MenuItem;
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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 MainActivity extends Activity {
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private final String TAG = this.getClass().getSimpleName();
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private final static int UPDATE_INITIAL = 1;
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private final static int UPDATE_SEQUENTIAL = 2;
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private final static int UPDATE_OFFLINE = 3;
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private final static int INITIAL_OFFSET_MAX = 100;
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private SharedPreferences m_prefs;
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private String m_themeName = "";
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private boolean m_feedsOpened = false;
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protected String m_sessionId;
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protected int m_offset = 0;
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protected int m_limit = 25;
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protected int m_maxId = 0;
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protected int m_updateMode = UPDATE_INITIAL;
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protected enum SyncStatus { SYNC_INITIAL, SYNC_ONLINE, SYNC_OFFLINE };
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protected MenuItem m_syncStatus;
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protected String getSessionId() {
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return m_sessionId;
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}
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protected synchronized void setSessionId(String sessionId) {
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m_sessionId = sessionId;
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SharedPreferences.Editor editor = m_prefs.edit();
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editor.putString("last_session_id", m_sessionId);
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editor.commit();
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}
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private Timer m_timer;
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private UpdateTask m_updateTask;
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private class UpdateTask extends TimerTask {
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@Override
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public void run() {
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runOnUiThread(new Runnable() {
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@Override
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public void run() {
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downloadArticles();
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}
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});
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}
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};
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/** Called when the activity is first created. */
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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m_prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
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if (m_prefs.getString("theme", "THEME_DARK").equals("THEME_DARK")) {
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setTheme(R.style.DarkTheme);
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} else {
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setTheme(R.style.LightTheme);
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}
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m_themeName = m_prefs.getString("theme", "THEME_DARK");
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m_sessionId = m_prefs.getString("last_session_id", null);
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if (savedInstanceState != null) {
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m_feedsOpened = savedInstanceState.getBoolean("feedsOpened");
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m_sessionId = savedInstanceState.getString("sessionId");
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m_offset = savedInstanceState.getInt("offset");
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m_limit = savedInstanceState.getInt("limit");
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m_updateMode = savedInstanceState.getInt("updateMode");
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m_maxId = savedInstanceState.getInt("maxId");
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}
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// allow database to upgrade before we do anything else
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DatabaseHelper dh = new DatabaseHelper(getApplicationContext());
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SQLiteDatabase db = dh.getWritableDatabase();
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if (m_updateMode == UPDATE_INITIAL) {
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db.execSQL("DELETE FROM feeds;");
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db.execSQL("DELETE FROM articles;");
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}
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db.close();
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setContentView(R.layout.main);
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if (!m_feedsOpened) {
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Log.d(TAG, "Opening feeds fragment...");
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FragmentTransaction ft = getFragmentManager().beginTransaction();
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FeedsFragment frag = new FeedsFragment();
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ft.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out);
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ft.replace(R.id.feeds_container, frag, "FEEDLIST");
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ft.commit();
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m_feedsOpened = true;
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}
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scheduleNextUpdate();
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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.putBoolean("feedsOpened", m_feedsOpened);
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out.putString("sessionId", m_sessionId);
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out.putInt("offset", m_offset);
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out.putInt("limit", m_limit);
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out.putInt("updateMode", m_updateMode);
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out.putInt("maxId", m_maxId);
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}
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@Override
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public void onResume() {
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super.onResume();
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if (!m_prefs.getString("theme", "THEME_DARK").equals(m_themeName)) {
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Intent refresh = new Intent(this, MainActivity.class);
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startActivity(refresh);
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finish();
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}
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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_timer.cancel();
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m_timer = null;
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}
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@Override
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public boolean onCreateOptionsMenu(Menu menu) {
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MenuInflater inflater = getMenuInflater();
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inflater.inflate(R.menu.main_menu, menu);
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m_syncStatus = menu.findItem(R.id.sync_status);
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switch (m_updateMode) {
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case UPDATE_INITIAL:
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setSyncStatus(SyncStatus.SYNC_INITIAL);
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break;
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case UPDATE_SEQUENTIAL:
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setSyncStatus(SyncStatus.SYNC_ONLINE);
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break;
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default:
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setSyncStatus(SyncStatus.SYNC_OFFLINE);
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}
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return true;
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}
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public void setSyncStatus(SyncStatus status) {
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switch (status) {
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case SYNC_INITIAL:
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m_syncStatus.setTitle(R.string.synchronizing);
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m_syncStatus.setIcon(android.R.drawable.presence_online);
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break;
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case SYNC_ONLINE:
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m_syncStatus.setTitle(R.string.online);
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m_syncStatus.setIcon(android.R.drawable.presence_online);
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break;
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case SYNC_OFFLINE:
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m_syncStatus.setTitle(R.string.offline);
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m_syncStatus.setIcon(android.R.drawable.presence_offline);
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break;
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}
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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switch (item.getItemId()) {
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case R.id.preferences:
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Intent intent = new Intent(this, PreferencesActivity.class);
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startActivityForResult(intent, 0);
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return true;
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default:
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return super.onOptionsItemSelected(item);
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}
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}
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private void downloadArticles() {
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ApiRequest task = new ApiRequest(m_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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setSessionId(getSessionId());
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int articlesFound = 0;
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try {
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JsonArray feeds_object = (JsonArray) result.getAsJsonArray();
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Type listType = new TypeToken<List<Article>>() {}.getType();
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List<Article> articles = m_gson.fromJson(feeds_object, listType);
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DatabaseHelper dh = new DatabaseHelper(getApplicationContext());
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SQLiteDatabase db = dh.getWritableDatabase();
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/* db.execSQL("DELETE FROM articles"); */
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SQLiteStatement stmtInsert = db.compileStatement("INSERT INTO articles " +
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"("+BaseColumns._ID+", unread, marked, published, updated, is_updated, title, link, feed_id, tags, content, excerpt) " +
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"VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);");
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SQLiteStatement stmtUpdate = db.compileStatement("UPDATE articles SET " +
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"unread = ?, marked = ?, published = ?, updated = ?, is_updated = ?, title = ?, link = ?, feed_id = ?, " +
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"tags = ?, content = ?, excerpt = ? WHERE " + BaseColumns._ID + " = ?");
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for (Article article : articles) {
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//Log.d(TAG, "Processing article #" + article.id);
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m_maxId = Math.max(m_maxId, article.id);
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++articlesFound;
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Cursor c = db.query("articles", new String[] { BaseColumns._ID } , BaseColumns._ID + "=?",
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new String[] { String.valueOf(article.id) }, null, null, null);
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String excerpt = Jsoup.parse(article.content).text();
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if (excerpt.length() > 250) {
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excerpt = excerpt.substring(0, 250) + "...";
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}
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if (c.getCount() != 0) {
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stmtUpdate.bindLong(1, article.unread ? 1 : 0);
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stmtUpdate.bindLong(2, article.marked ? 1 : 0);
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stmtUpdate.bindLong(3, article.published ? 1 : 0);
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stmtUpdate.bindLong(4, article.updated);
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stmtUpdate.bindLong(5, article.is_updated ? 1 : 0);
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stmtUpdate.bindString(6, article.title);
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stmtUpdate.bindString(7, article.link);
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stmtUpdate.bindLong(8, article.feed_id);
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stmtUpdate.bindString(9, ""); // comma-separated tags
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stmtUpdate.bindString(10, article.content);
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stmtUpdate.bindString(11, excerpt);
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stmtUpdate.bindLong(12, article.id);
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stmtUpdate.execute();
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} else {
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//Log.d(TAG, "article not found");
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stmtInsert.bindLong(1, article.id);
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stmtInsert.bindLong(2, article.unread ? 1 : 0);
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stmtInsert.bindLong(3, article.marked ? 1 : 0);
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stmtInsert.bindLong(4, article.published ? 1 : 0);
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stmtInsert.bindLong(5, article.updated);
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stmtInsert.bindLong(6, article.is_updated ? 1 : 0);
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stmtInsert.bindString(7, article.title);
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stmtInsert.bindString(8, article.link);
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stmtInsert.bindLong(9, article.feed_id);
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stmtInsert.bindString(10, ""); // comma-separated tags
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stmtInsert.bindString(11, article.content);
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stmtInsert.bindString(12, excerpt);
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stmtInsert.execute();
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}
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c.close();
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}
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db.close();
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FeedsFragment ff = (FeedsFragment) getFragmentManager().findFragmentByTag("FEEDLIST");
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if (ff != null) ff.updateListView();
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} catch (Exception e) {
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e.printStackTrace();
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}
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Log.d(TAG, articlesFound + " articles processed");
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if (m_updateMode == UPDATE_INITIAL && articlesFound == m_limit && m_offset < INITIAL_OFFSET_MAX) {
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m_offset += m_limit;
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} else {
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m_offset = 0;
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if (m_updateMode == UPDATE_INITIAL) {
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Log.i(TAG, "Switching to sequential mode...");
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setSyncStatus(SyncStatus.SYNC_ONLINE);
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m_updateMode = UPDATE_SEQUENTIAL;
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}
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}
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scheduleNextUpdate();
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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", m_sessionId);
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put("op", "getHeadlines");
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put("feed_id", "-4");
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put("show_content", "1");
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put("limit", String.valueOf(m_limit));
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put("skip", String.valueOf(m_offset));
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put("view_mode", "unread");
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if (m_updateMode != UPDATE_INITIAL) {
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put("since_id", String.valueOf(m_maxId));
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}
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}
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});
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}
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protected void scheduleNextUpdate() {
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if (m_updateTask != null) m_updateTask.cancel();
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m_updateTask = new UpdateTask();
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if (m_updateMode == UPDATE_INITIAL) {
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Log.i(TAG, "Scheduling initial update...");
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m_timer = new Timer("DownloadInitial");
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m_timer.schedule(m_updateTask, 1000L);
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} else {
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Log.i(TAG, "Scheduling sequential update...");
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m_timer = new Timer("DownloadSequential");
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m_timer.schedule(m_updateTask, 60*1000L);
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}
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}
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} |