1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.settings.datetime;
18
19import android.content.Context;
20import android.support.annotation.VisibleForTesting;
21import android.support.v7.preference.Preference;
22
23import com.android.settings.core.PreferenceControllerMixin;
24import com.android.settingslib.core.AbstractPreferenceController;
25import com.android.settingslib.datetime.ZoneGetter;
26
27import java.util.Calendar;
28
29public class TimeZonePreferenceController extends AbstractPreferenceController
30        implements PreferenceControllerMixin {
31
32    private static final String KEY_TIMEZONE = "timezone";
33
34    private final AutoTimeZonePreferenceController mAutoTimeZonePreferenceController;
35
36    public TimeZonePreferenceController(Context context,
37            AutoTimeZonePreferenceController autoTimeZonePreferenceController) {
38        super(context);
39        mAutoTimeZonePreferenceController = autoTimeZonePreferenceController;
40    }
41
42    @Override
43    public void updateState(Preference preference) {
44        preference.setSummary(getTimeZoneOffsetAndName());
45        preference.setEnabled(!mAutoTimeZonePreferenceController.isEnabled());
46    }
47
48    @Override
49    public boolean isAvailable() {
50        return true;
51    }
52
53    @Override
54    public String getPreferenceKey() {
55        return KEY_TIMEZONE;
56    }
57
58    @VisibleForTesting
59    CharSequence getTimeZoneOffsetAndName() {
60        final Calendar now = Calendar.getInstance();
61        return ZoneGetter.getTimeZoneOffsetAndName(mContext,
62                now.getTimeZone(), now.getTime());
63    }
64}
65