tt-rss-android/src/org/fox/ttrss/offline/OfflineActivity.java

package org.fox.ttrss.offline;

import org.fox.ttrss.CommonActivity;
import org.fox.ttrss.R;

import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.provider.BaseColumns;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;

public class OfflineActivity extends CommonActivity {
	private final String TAG = this.getClass().getSimpleName();

	protected SharedPreferences m_prefs;
	protected Menu m_menu;
	protected boolean m_unreadOnly;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		m_prefs = PreferenceManager
				.getDefaultSharedPreferences(getApplicationContext());

		if (m_prefs.getString("theme", "THEME_DARK").equals("THEME_DARK")) {
			setTheme(R.style.DarkTheme);
		} else {
			setTheme(R.style.LightTheme);
		}
		
		super.onCreate(savedInstanceState);
		
		setContentView(R.layout.online);
		
		setLoadingStatus(R.string.blank, false);
		findViewById(R.id.loading_container).setVisibility(View.GONE);
		
		initMenu();

		Intent intent = getIntent();
		
		if (intent.getExtras() != null) {
			if (intent.getBooleanExtra("initial", false)) {
				intent = new Intent(OfflineActivity.this, OfflineFeedsActivity.class);
				intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
		 	   
				startActivityForResult(intent, 0);
				finish();
			}
		}
		
		if (savedInstanceState != null) {
			m_unreadOnly = savedInstanceState.getBoolean("unreadOnly");
		}
	}
	
	@Override
	public void onSaveInstanceState(Bundle out) {
		super.onSaveInstanceState(out);
		
		out.putBoolean("unreadOnly", m_unreadOnly);
	}
	
	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch (item.getItemId()) {
		case R.id.go_online:
			switchOnline();
			return true;		
		default:
			Log.d(TAG, "onOptionsItemSelected, unhandled id=" + item.getItemId());
			return super.onOptionsItemSelected(item);
		}
	}

	
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		MenuInflater inflater = getMenuInflater();
		inflater.inflate(R.menu.offline_menu, menu);

		m_menu = menu;

		initMenu();
		
		return true;
	}
	
	public boolean getUnreadOnly() {
		return m_unreadOnly;
	}
	
	protected void initMenu() {
		if (m_menu != null) {
			m_menu.setGroupVisible(R.id.menu_group_headlines, false);
			m_menu.setGroupVisible(R.id.menu_group_headlines_selection, false);
			m_menu.setGroupVisible(R.id.menu_group_article, false);
			m_menu.setGroupVisible(R.id.menu_group_feeds, false);
		}		
	}
	
	private void switchOnline() {
		SharedPreferences localPrefs = getSharedPreferences("localprefs", Context.MODE_PRIVATE);
		SharedPreferences.Editor editor = localPrefs.edit();
		editor.putBoolean("offline_mode_active", false);
		editor.commit();

		Intent refresh = new Intent(this, org.fox.ttrss.OnlineActivity.class);
		startActivity(refresh);
		finish();
	}
	
	protected Cursor getArticleById(int articleId) {
		Cursor c = getReadableDb().query("articles", null,
				BaseColumns._ID + "=?",
				new String[] { String.valueOf(articleId) }, null, null, null);

		c.moveToFirst();

		return c;
	}

	protected Cursor getFeedById(int feedId) {
		Cursor c = getReadableDb().query("feeds", null,
				BaseColumns._ID + "=?",
				new String[] { String.valueOf(feedId) }, null, null, null);

		c.moveToFirst();

		return c;
	}

	protected Cursor getCatById(int catId) {
		Cursor c = getReadableDb().query("categories", null,
				BaseColumns._ID + "=?",
				new String[] { String.valueOf(catId) }, null, null, null);

		c.moveToFirst();

		return c;
	}

	protected Intent getShareIntent(Cursor article) {
		String title = article.getString(article.getColumnIndex("title"));
		String link = article.getString(article.getColumnIndex("link"));

		Intent intent = new Intent(Intent.ACTION_SEND);

		intent.setType("text/plain");
		intent.putExtra(Intent.EXTRA_SUBJECT, title);
		intent.putExtra(Intent.EXTRA_TEXT, link);

		return intent;
	}
	
	protected void shareArticle(int articleId) {

		Cursor article = getArticleById(articleId);

		if (article != null) {
			shareArticle(article);
			article.close();
		}
	}

	private void shareArticle(Cursor article) {
		if (article != null) {
			Intent intent = getShareIntent(article);
			
			startActivity(Intent.createChooser(intent,
					getString(R.id.share_article)));
		}
	}

	protected int getSelectedArticleCount() {
		Cursor c = getReadableDb().query("articles",
				new String[] { "COUNT(*)" }, "selected = 1", null, null, null,
				null);
		c.moveToFirst();
		int selected = c.getInt(0);
		c.close();

		return selected;
	}

}