de.vanita5.twittnuker.loader.support.BaseUserListsLoader.java Source code

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Here is the source code for de.vanita5.twittnuker.loader.support.BaseUserListsLoader.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.loader.support;

import static de.vanita5.twittnuker.util.Utils.getTwitterInstance;

import android.content.Context;
import android.support.v4.content.AsyncTaskLoader;

import de.vanita5.twittnuker.model.ParcelableUserList;
import de.vanita5.twittnuker.util.NoDuplicatesArrayList;

import twitter4j.CursorSupport;
import twitter4j.PagableResponseList;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.UserList;

import java.util.Collections;
import java.util.List;

public abstract class BaseUserListsLoader extends AsyncTaskLoader<List<ParcelableUserList>> {

    protected final NoDuplicatesArrayList<ParcelableUserList> mData = new NoDuplicatesArrayList<ParcelableUserList>();
    protected final long mAccountId;
    private final long mCursor;

    private long mNextCursor, mPrevCursor;

    public BaseUserListsLoader(final Context context, final long account_id, final long cursor,
            final List<ParcelableUserList> data) {
        super(context);
        if (data != null) {
            mData.addAll(data);
        }
        mCursor = cursor;
        mAccountId = account_id;
    }

    public long getCursor() {
        return mCursor;
    }

    public long getNextCursor() {
        return mNextCursor;
    }

    public long getPrevCursor() {
        return mPrevCursor;
    }

    public abstract List<UserList> getUserLists(final Twitter twitter) throws TwitterException;

    @Override
    public List<ParcelableUserList> loadInBackground() {
        final Twitter twitter = getTwitterInstance(getContext(), mAccountId, true);
        List<UserList> list_loaded = null;
        try {
            list_loaded = getUserLists(twitter);
        } catch (final TwitterException e) {
            e.printStackTrace();
        }
        if (list_loaded != null) {
            final int list_size = list_loaded.size();
            if (list_loaded instanceof PagableResponseList) {
                mNextCursor = ((CursorSupport) list_loaded).getNextCursor();
                mPrevCursor = ((CursorSupport) list_loaded).getPreviousCursor();
                for (int i = 0; i < list_size; i++) {
                    final UserList list = list_loaded.get(i);
                    mData.add(new ParcelableUserList(list, mAccountId, (mCursor + 1) * 20 + i, isFollowing(list)));
                }
            } else {
                for (int i = 0; i < list_size; i++) {
                    final UserList list = list_loaded.get(i);
                    mData.add(new ParcelableUserList(list_loaded.get(i), mAccountId, i, isFollowing(list)));
                }
            }
        }
        Collections.sort(mData);
        return mData;
    }

    @Override
    public void onStartLoading() {
        forceLoad();
    }

    protected boolean isFollowing(final UserList list) {
        return list.isFollowing();
    }
}