de.vanita5.twittnuker.fragment.support.TrendsSuggectionsFragment.java Source code

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Here is the source code for de.vanita5.twittnuker.fragment.support.TrendsSuggectionsFragment.java

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/*
 * Twittnuker - Twitter client for Android
 *
 * Copyright (C) 2013-2014 vanita5 <mail@vanita5.de>
 *
 * This program incorporates a modified version of Twidere.
 * Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package de.vanita5.twittnuker.fragment.support;

import static de.vanita5.twittnuker.util.Utils.getDefaultAccountId;
import static de.vanita5.twittnuker.util.Utils.getTableNameByUri;
import static de.vanita5.twittnuker.util.Utils.openTweetSearch;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.LoaderManager.LoaderCallbacks;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v4.widget.SimpleCursorAdapter;
import android.view.View;
import android.widget.ListView;

import de.vanita5.twittnuker.model.Panes;
import de.vanita5.twittnuker.provider.TweetStore.CachedTrends;
import de.vanita5.twittnuker.util.AsyncTwitterWrapper;
import de.vanita5.twittnuker.util.MultiSelectManager;

public class TrendsSuggectionsFragment extends BasePullToRefreshListFragment
        implements LoaderCallbacks<Cursor>, Panes.Left {

    private MultiSelectManager mMultiSelectManager;
    private SharedPreferences mPreferences;

    private TrendsAdapter mTrendsAdapter;

    private long mAccountId;

    private final BroadcastReceiver mStatusReceiver = new BroadcastReceiver() {

        @Override
        public void onReceive(final Context context, final Intent intent) {
            if (getActivity() == null || !isAdded() || isDetached())
                return;
            final String action = intent.getAction();
            if (BROADCAST_TASK_STATE_CHANGED.equals(action)) {
                updateRefreshState();
            }
        }
    };

    @Override
    public void onActivityCreated(final Bundle savedInstanceState) {
        mPreferences = getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE);
        super.onActivityCreated(savedInstanceState);
        mMultiSelectManager = getMultiSelectManager();
        mAccountId = getDefaultAccountId(getActivity());
        mTrendsAdapter = new TrendsAdapter(getActivity());
        setListAdapter(mTrendsAdapter);
        getLoaderManager().initLoader(0, null, this);
    }

    @Override
    public Loader<Cursor> onCreateLoader(final int id, final Bundle args) {
        final Uri uri = CachedTrends.Local.CONTENT_URI;
        final String table = getTableNameByUri(uri);
        final String where = table != null
                ? CachedTrends.TIMESTAMP + " = " + "(SELECT " + CachedTrends.TIMESTAMP + " FROM " + table
                        + " ORDER BY " + CachedTrends.TIMESTAMP + " DESC LIMIT 1)"
                : null;
        return new CursorLoader(getActivity(), uri, CachedTrends.COLUMNS, where, null, null);
    }

    @Override
    public void onListItemClick(final ListView l, final View v, final int position, final long id) {
        if (mMultiSelectManager.isActive())
            return;
        final Cursor cur = (Cursor) mTrendsAdapter.getItem(position - l.getHeaderViewsCount());
        if (cur == null)
            return;
        openTweetSearch(getActivity(), mAccountId, cur.getString(cur.getColumnIndex(CachedTrends.NAME)));
    }

    @Override
    public void onLoaderReset(final Loader<Cursor> loader) {
        mTrendsAdapter.swapCursor(null);
    }

    @Override
    public void onLoadFinished(final Loader<Cursor> loader, final Cursor cursor) {
        mTrendsAdapter.swapCursor(cursor);
    }

    @Override
    public void onRefreshFromEnd() {

    }

    @Override
    public void onRefreshFromStart() {
        if (isRefreshing())
            return;
        final AsyncTwitterWrapper twitter = getTwitterWrapper();
        if (twitter == null)
            return;
        twitter.getLocalTrendsAsync(mAccountId, mPreferences.getInt(KEY_LOCAL_TRENDS_WOEID, 1));
    }

    @Override
    public void onStart() {
        super.onStart();
        getLoaderManager().restartLoader(0, null, this);
        final IntentFilter filter = new IntentFilter(BROADCAST_TASK_STATE_CHANGED);
        registerReceiver(mStatusReceiver, filter);
    }

    @Override
    public void onStop() {
        unregisterReceiver(mStatusReceiver);
        super.onStop();
    }

    protected void updateRefreshState() {
        final AsyncTwitterWrapper twitter = getTwitterWrapper();
        if (twitter == null || !getUserVisibleHint())
            return;
        setRefreshing(twitter.isLocalTrendsRefreshing());
    }

    static class TrendsAdapter extends SimpleCursorAdapter {

        public TrendsAdapter(final Context context) {
            super(context, android.R.layout.simple_list_item_1, null, new String[] { CachedTrends.NAME },
                    new int[] { android.R.id.text1 }, 0);
        }

    }

}