am 85b039f3: Merge "Move ZoneGetter into SettingsLib" into mnc-dev

<timezones>

    <timezone id="Pacific/Midway"></timezone>

    <timezone id="Pacific/Honolulu"></timezone>

    <timezone id="America/Anchorage"></timezone>

    <timezone id="America/Los_Angeles"></timezone>

    <timezone id="America/Tijuana"></timezone>

    <timezone id="America/Phoenix"></timezone>

    <timezone id="America/Chihuahua"></timezone>

    <timezone id="America/Denver"></timezone>

    <timezone id="America/Costa_Rica"></timezone>

    <timezone id="America/Chicago"></timezone>

    <timezone id="America/Mexico_City"></timezone>

    <timezone id="America/Regina"></timezone>

    <timezone id="America/Bogota"></timezone>

    <timezone id="America/New_York"></timezone>

    <timezone id="America/Caracas"></timezone>

    <timezone id="America/Barbados"></timezone>

    <timezone id="America/Halifax"></timezone>

    <timezone id="America/Manaus"></timezone>

    <timezone id="America/Santiago"></timezone>

    <timezone id="America/St_Johns"></timezone>

    <timezone id="America/Recife"></timezone>

    <timezone id="America/Sao_Paulo"></timezone>

    <timezone id="America/Buenos_Aires"></timezone>

    <timezone id="America/Godthab"></timezone>

    <timezone id="America/Montevideo"></timezone>

    <timezone id="Atlantic/South_Georgia"></timezone>

    <timezone id="Atlantic/Azores"></timezone>

    <timezone id="Atlantic/Cape_Verde"></timezone>

    <timezone id="Africa/Casablanca"></timezone>

    <timezone id="Europe/London"></timezone>

    <timezone id="Europe/Amsterdam"></timezone>

    <timezone id="Europe/Belgrade"></timezone>

    <timezone id="Europe/Brussels"></timezone>

    <timezone id="Europe/Madrid"></timezone>

    <timezone id="Europe/Sarajevo"></timezone>

    <timezone id="Africa/Windhoek"></timezone>

    <timezone id="Africa/Brazzaville"></timezone>

    <timezone id="Asia/Amman"></timezone>

    <timezone id="Europe/Athens"></timezone>

    <timezone id="Europe/Istanbul"></timezone>

    <timezone id="Asia/Beirut"></timezone>

    <timezone id="Africa/Cairo"></timezone>

    <timezone id="Europe/Helsinki"></timezone>

    <timezone id="Asia/Jerusalem"></timezone>

    <timezone id="Europe/Minsk"></timezone>

    <timezone id="Africa/Harare"></timezone>

    <timezone id="Asia/Baghdad"></timezone>

    <timezone id="Europe/Moscow"></timezone>

    <timezone id="Asia/Kuwait"></timezone>

    <timezone id="Africa/Nairobi"></timezone>

    <timezone id="Asia/Tehran"></timezone>

    <timezone id="Asia/Baku"></timezone>

    <timezone id="Asia/Tbilisi"></timezone>

    <timezone id="Asia/Yerevan"></timezone>

    <timezone id="Asia/Dubai"></timezone>

    <timezone id="Asia/Kabul"></timezone>

    <timezone id="Asia/Karachi"></timezone>

    <timezone id="Asia/Oral"></timezone>

    <timezone id="Asia/Yekaterinburg"></timezone>

    <timezone id="Asia/Calcutta"></timezone>

    <timezone id="Asia/Colombo"></timezone>

    <timezone id="Asia/Katmandu"></timezone>

    <timezone id="Asia/Almaty"></timezone>

    <timezone id="Asia/Rangoon"></timezone>

    <timezone id="Asia/Krasnoyarsk"></timezone>

    <timezone id="Asia/Bangkok"></timezone>

    <timezone id="Asia/Jakarta"></timezone>

    <timezone id="Asia/Shanghai"></timezone>

    <timezone id="Asia/Hong_Kong"></timezone>

    <timezone id="Asia/Irkutsk"></timezone>

    <timezone id="Asia/Kuala_Lumpur"></timezone>

    <timezone id="Australia/Perth"></timezone>

    <timezone id="Asia/Taipei"></timezone>

    <timezone id="Asia/Seoul"></timezone>

    <timezone id="Asia/Tokyo"></timezone>

    <timezone id="Asia/Yakutsk"></timezone>

    <timezone id="Australia/Adelaide"></timezone>

    <timezone id="Australia/Darwin"></timezone>

    <timezone id="Australia/Brisbane"></timezone>

    <timezone id="Australia/Hobart"></timezone>

    <timezone id="Australia/Sydney"></timezone>

    <timezone id="Asia/Vladivostok"></timezone>

    <timezone id="Pacific/Guam"></timezone>

    <timezone id="Asia/Magadan"></timezone>

    <timezone id="Pacific/Noumea"></timezone>

    <timezone id="Pacific/Majuro"></timezone>

    <timezone id="Pacific/Auckland"></timezone>

    <timezone id="Pacific/Fiji"></timezone>

    <timezone id="Pacific/Tongatapu"></timezone>

</timezones>

/*

 * Copyright (C) 2015 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License

 */

package com.android.settingslib.datetime;

import android.content.Context;

import android.content.res.XmlResourceParser;

import android.text.BidiFormatter;

import android.text.TextDirectionHeuristics;

import android.text.TextUtils;

import android.util.Log;

import android.view.View;

import com.android.settingslib.R;

import libcore.icu.TimeZoneNames;

import org.xmlpull.v1.XmlPullParserException;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Calendar;

import java.util.Date;

import java.util.HashMap;

import java.util.HashSet;

import java.util.List;

import java.util.Locale;

import java.util.TimeZone;

public class ZoneGetter {

    private static final String TAG = "ZoneGetter";

    private static final String XMLTAG_TIMEZONE = "timezone";

    public static final String KEY_ID = "id";  // value: String

    public static final String KEY_DISPLAYNAME = "name";  // value: String

    public static final String KEY_GMT = "gmt";  // value: String

    public static final String KEY_OFFSET = "offset";  // value: int (Integer)

    private final List<HashMap<String, Object>> mZones = new ArrayList<>();

    private final HashSet<String> mLocalZones = new HashSet<>();

    private final Date mNow = Calendar.getInstance().getTime();

    private final SimpleDateFormat mZoneNameFormatter = new SimpleDateFormat("zzzz");

    public List<HashMap<String, Object>> getZones(Context context) {

        for (String olsonId : TimeZoneNames.forLocale(Locale.getDefault())) {

            mLocalZones.add(olsonId);

        }

        try {

            XmlResourceParser xrp = context.getResources().getXml(R.xml.timezones);

            while (xrp.next() != XmlResourceParser.START_TAG) {

                continue;

            }

            xrp.next();

            while (xrp.getEventType() != XmlResourceParser.END_TAG) {

                while (xrp.getEventType() != XmlResourceParser.START_TAG) {

                    if (xrp.getEventType() == XmlResourceParser.END_DOCUMENT) {

                        return mZones;

                    }

                    xrp.next();

                }

                if (xrp.getName().equals(XMLTAG_TIMEZONE)) {

                    String olsonId = xrp.getAttributeValue(0);

                    addTimeZone(olsonId);

                }

                while (xrp.getEventType() != XmlResourceParser.END_TAG) {

                    xrp.next();

                }

                xrp.next();

            }

            xrp.close();

        } catch (XmlPullParserException xppe) {

            Log.e(TAG, "Ill-formatted timezones.xml file");

        } catch (java.io.IOException ioe) {

            Log.e(TAG, "Unable to read timezones.xml file");

        }

        return mZones;

    }

    private void addTimeZone(String olsonId) {

        // We always need the "GMT-07:00" string.

        final TimeZone tz = TimeZone.getTimeZone(olsonId);

        // For the display name, we treat time zones within the country differently

        // from other countries' time zones. So in en_US you'd get "Pacific Daylight Time"

        // but in de_DE you'd get "Los Angeles" for the same time zone.

        String displayName;

        if (mLocalZones.contains(olsonId)) {

            // Within a country, we just use the local name for the time zone.

            mZoneNameFormatter.setTimeZone(tz);

            displayName = mZoneNameFormatter.format(mNow);

        } else {

            // For other countries' time zones, we use the exemplar location.

            final String localeName = Locale.getDefault().toString();

            displayName = TimeZoneNames.getExemplarLocation(localeName, olsonId);

        }

        final HashMap<String, Object> map = new HashMap<>();

        map.put(KEY_ID, olsonId);

        map.put(KEY_DISPLAYNAME, displayName);

        map.put(KEY_GMT, getTimeZoneText(tz, false));

        map.put(KEY_OFFSET, tz.getOffset(mNow.getTime()));

        mZones.add(map);

    }

    public static String getTimeZoneText(TimeZone tz, boolean includeName) {

        Date now = new Date();

        // Use SimpleDateFormat to format the GMT+00:00 string.

        SimpleDateFormat gmtFormatter = new SimpleDateFormat("ZZZZ");

        gmtFormatter.setTimeZone(tz);

        String gmtString = gmtFormatter.format(now);

        // Ensure that the "GMT+" stays with the "00:00" even if the digits are RTL.

        BidiFormatter bidiFormatter = BidiFormatter.getInstance();

        Locale l = Locale.getDefault();

        boolean isRtl = TextUtils.getLayoutDirectionFromLocale(l) == View.LAYOUT_DIRECTION_RTL;

        gmtString = bidiFormatter.unicodeWrap(gmtString,

                isRtl ? TextDirectionHeuristics.RTL : TextDirectionHeuristics.LTR);

        if (!includeName) {

            return gmtString;

        }

        // Optionally append the time zone name.

        SimpleDateFormat zoneNameFormatter = new SimpleDateFormat("zzzz");

        zoneNameFormatter.setTimeZone(tz);

        String zoneNameString = zoneNameFormatter.format(now);

        // We don't use punctuation here to avoid having to worry about localizing that too!

        return gmtString + " " + zoneNameString;

    }

}