/*
* Created by Angel Leon (@gubatron), Alden Torres (aldenml)
* Copyright (c) 2011, 2012, FrostWire(TM). All rights reserved.
*
* 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 com.bt.download.android.gui.views;
import java.net.URLEncoder;
import java.util.Locale;
import org.json.JSONArray;
import android.content.Context;
import android.database.Cursor;
import android.support.v4.widget.SimpleCursorAdapter;
import com.bt.download.android.R;
import com.frostwire.util.StringUtils;
import com.frostwire.util.HttpClient;
import com.frostwire.util.HttpClientFactory;
/**
*
* @author gubatron
* @author aldenml
*
*/
class SuggestionsAdapter extends SimpleCursorAdapter {
private static final String SUGGESTIONS_URL = buildSuggestionsUrl();
private static final int HTTP_QUERY_TIMEOUT = 1000;
private final HttpClient client;
private boolean discardLastResult;
public SuggestionsAdapter(Context context) {
super(context, R.layout.view_suggestion_item, null, new String[] { SuggestionsCursor.COLUMN_SUGGESTION }, new int[] { R.id.view_suggestion_item_text }, 0);
this.client = HttpClientFactory.newInstance();
}
@Override
public Cursor runQueryOnBackgroundThread(CharSequence constraint) {
try {
String url = String.format(SUGGESTIONS_URL, URLEncoder.encode(constraint.toString(), "UTF-8"));
String json = client.get(url, HTTP_QUERY_TIMEOUT);
if (!discardLastResult) {
return new SuggestionsCursor(new JSONArray(json).getJSONArray(1));
}
} catch (Throwable e) {
// ignore
} finally {
discardLastResult = false;
}
return null;
}
@Override
public CharSequence convertToString(Cursor cursor) {
if (cursor != null) {
return cursor.getString(1);
}
return null;
}
public void discardLastResult() {
discardLastResult = true;
}
private static String buildSuggestionsUrl() {
String lang = Locale.getDefault().getLanguage();
if (StringUtils.isNullOrEmpty(lang)) {
lang = "en";
}
return "http://suggestqueries.google.com/complete/search?output=firefox&hl=" + Locale.getDefault() + "&q=%s";
}
}