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

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Java
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package org.fox.ttrss.offline;
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import java.io.File;
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import org.fox.ttrss.R;
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import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Environment;
import android.preference.PreferenceManager;
import android.provider.BaseColumns;
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import android.support.v4.app.Fragment;
import android.support.v4.widget.SimpleCursorAdapter;
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import android.util.Log;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
public class OfflineFeedsFragment extends Fragment implements OnItemClickListener, OnSharedPreferenceChangeListener {
private final String TAG = this.getClass().getSimpleName();
private SharedPreferences m_prefs;
private FeedListAdapter m_adapter;
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private static final String ICON_PATH = "/data/org.fox.ttrss/icons/";
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private int m_selectedFeedId;
private int m_catId = -1;
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private boolean m_enableFeedIcons;
private Cursor m_cursor;
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private OfflineServices m_offlineServices;
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public OfflineFeedsFragment() {
//
}
public OfflineFeedsFragment(int catId) {
m_catId = catId;
}
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@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
getActivity().getMenuInflater().inflate(R.menu.feed_menu, menu);
AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
Cursor cursor = (Cursor)m_adapter.getItem(info.position);
if (cursor != null)
menu.setHeaderTitle(cursor.getString(cursor.getColumnIndex("title")));
super.onCreateContextMenu(menu, v, menuInfo);
}
public Cursor createCursor() {
String unreadOnly = m_offlineServices.getUnreadOnly() ? "unread > 0" : "1";
String order = m_prefs.getBoolean("sort_feeds_by_unread", false) ? "unread DESC, title" : "title";
if (m_catId != -1) {
return m_offlineServices.getReadableDb().query("feeds_unread",
null, unreadOnly + " AND cat_id = ?", new String[] { String.valueOf(m_catId) }, null, null, order);
} else {
return m_offlineServices.getReadableDb().query("feeds_unread",
null, unreadOnly, null, null, null, order);
}
}
public void refresh() {
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if (m_cursor != null && !m_cursor.isClosed()) m_cursor.close();
m_cursor = createCursor();
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if (m_cursor != null) {
m_adapter.changeCursor(m_cursor);
m_adapter.notifyDataSetChanged();
}
}
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@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
if (savedInstanceState != null) {
m_selectedFeedId = savedInstanceState.getInt("selectedFeedId");
m_catId = savedInstanceState.getInt("catId");
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}
View view = inflater.inflate(R.layout.feeds_fragment, container, false);
ListView list = (ListView)view.findViewById(R.id.feeds);
m_cursor = createCursor();
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m_adapter = new FeedListAdapter(getActivity(), R.layout.feeds_row, m_cursor,
new String[] { "title", "unread" }, new int[] { R.id.title, R.id.unread_counter }, 0);
list.setAdapter(m_adapter);
list.setOnItemClickListener(this);
list.setEmptyView(view.findViewById(R.id.no_feeds));
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registerForContextMenu(list);
view.findViewById(R.id.loading_container).setVisibility(View.GONE);
m_enableFeedIcons = m_prefs.getBoolean("download_feed_icons", false);
return view;
}
@Override
public void onDestroy() {
super.onDestroy();
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if (m_cursor != null && !m_cursor.isClosed()) m_cursor.close();
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}
@Override
public void onAttach(Activity activity) {
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super.onAttach(activity);
m_offlineServices = (OfflineServices)activity;
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m_prefs = PreferenceManager.getDefaultSharedPreferences(getActivity().getApplicationContext());
m_prefs.registerOnSharedPreferenceChangeListener(this);
}
@Override
public void onSaveInstanceState (Bundle out) {
super.onSaveInstanceState(out);
out.putInt("selectedFeedId", m_selectedFeedId);
out.putInt("catId", m_catId);
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}
@Override
public void onItemClick(AdapterView<?> av, View view, int position, long id) {
ListView list = (ListView)getActivity().findViewById(R.id.feeds);
if (list != null) {
Cursor cursor = (Cursor) list.getItemAtPosition(position);
if (cursor != null) {
int feedId = (int) cursor.getLong(0);
Log.d(TAG, "clicked on feed " + feedId);
m_offlineServices.onFeedSelected(feedId);
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if (!m_offlineServices.isSmallScreen())
m_selectedFeedId = feedId;
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m_adapter.notifyDataSetChanged();
}
}
}
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/* public void setLoadingStatus(int status, boolean showProgress) {
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if (getView() != null) {
TextView tv = (TextView)getView().findViewById(R.id.loading_message);
if (tv != null) {
tv.setText(status);
}
}
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getActivity().setProgressBarIndeterminateVisibility(showProgress);
} */
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private class FeedListAdapter extends SimpleCursorAdapter {
public FeedListAdapter(Context context, int layout, Cursor c,
String[] from, int[] to, int flags) {
super(context, layout, c, from, to, flags);
}
public static final int VIEW_NORMAL = 0;
public static final int VIEW_SELECTED = 1;
public static final int VIEW_COUNT = VIEW_SELECTED+1;
@Override
public int getViewTypeCount() {
return VIEW_COUNT;
}
@Override
public int getItemViewType(int position) {
Cursor cursor = (Cursor) this.getItem(position);
if (!m_offlineServices.isSmallScreen() && cursor.getLong(0) == m_selectedFeedId) {
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return VIEW_SELECTED;
} else {
return VIEW_NORMAL;
}
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
Cursor cursor = (Cursor)getItem(position);
if (v == null) {
int layoutId = R.layout.feeds_row;
switch (getItemViewType(position)) {
case VIEW_SELECTED:
layoutId = R.layout.feeds_row_selected;
break;
}
LayoutInflater vi = (LayoutInflater)getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(layoutId, null);
}
TextView tt = (TextView) v.findViewById(R.id.title);
if (tt != null) {
tt.setText(cursor.getString(cursor.getColumnIndex("title")));
}
TextView tu = (TextView) v.findViewById(R.id.unread_counter);
if (tu != null) {
tu.setText(String.valueOf(cursor.getInt(cursor.getColumnIndex("unread"))));
tu.setVisibility((cursor.getInt(cursor.getColumnIndex("unread")) > 0) ? View.VISIBLE : View.INVISIBLE);
}
ImageView icon = (ImageView)v.findViewById(R.id.icon);
if (icon != null) {
if (m_enableFeedIcons) {
File storage = Environment.getExternalStorageDirectory();
File iconFile = new File(storage.getAbsolutePath() + ICON_PATH + cursor.getInt(cursor.getColumnIndex(BaseColumns._ID)) + ".ico");
if (iconFile.exists()) {
Bitmap bmpOrig = BitmapFactory.decodeFile(iconFile.getAbsolutePath());
if (bmpOrig != null) {
icon.setImageBitmap(bmpOrig);
}
} else {
icon.setImageResource(cursor.getInt(cursor.getColumnIndex("unread")) > 0 ? R.drawable.ic_rss : R.drawable.ic_rss_bw);
}
} else {
icon.setImageResource(cursor.getInt(cursor.getColumnIndex("unread")) > 0 ? R.drawable.ic_rss : R.drawable.ic_rss_bw);
}
}
return v;
}
}
public void sortFeeds() {
try {
refresh();
} catch (NullPointerException e) {
// activity is gone?
} catch (IllegalStateException e) {
// we're probably closing and DB is gone already
}
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}
@Override
public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
String key) {
sortFeeds();
m_enableFeedIcons = m_prefs.getBoolean("download_feed_icons", false);
}
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public int getFeedIdAtPosition(int position) {
Cursor c = (Cursor)m_adapter.getItem(position);
if (c != null) {
int feedId = c.getInt(0);
c.close();
return feedId;
}
return 0;
}
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public void setSelectedFeedId(int feedId) {
m_selectedFeedId = feedId;
refresh();
}
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}