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;
22import android.util.FeatureFlagUtils;
23
24import com.android.settings.core.FeatureFlags;
25import com.android.settings.core.PreferenceControllerMixin;
26import com.android.settings.datetime.timezone.TimeZoneSettings;
27import com.android.settingslib.RestrictedPreference;
28import com.android.settingslib.core.AbstractPreferenceController;
29import com.android.settingslib.datetime.ZoneGetter;
30
31import java.util.Calendar;
32
33public class TimeZonePreferenceController extends AbstractPreferenceController
34        implements PreferenceControllerMixin {
35
36    private static final String KEY_TIMEZONE = "timezone";
37
38    private final AutoTimeZonePreferenceController mAutoTimeZonePreferenceController;
39    private final boolean mZonePickerV2;
40
41    public TimeZonePreferenceController(Context context,
42            AutoTimeZonePreferenceController autoTimeZonePreferenceController) {
43        super(context);
44        mAutoTimeZonePreferenceController = autoTimeZonePreferenceController;
45        mZonePickerV2 = FeatureFlagUtils.isEnabled(mContext, FeatureFlags.ZONE_PICKER_V2);
46    }
47
48    @Override
49    public void updateState(Preference preference) {
50        if (!(preference instanceof RestrictedPreference)) {
51            return;
52        }
53        if (mZonePickerV2) {
54            preference.setFragment(TimeZoneSettings.class.getName());
55        }
56        preference.setSummary(getTimeZoneOffsetAndName());
57        if( !((RestrictedPreference) preference).isDisabledByAdmin()) {
58            preference.setEnabled(!mAutoTimeZonePreferenceController.isEnabled());
59        }
60    }
61
62    @Override
63    public boolean isAvailable() {
64        return true;
65    }
66
67    @Override
68    public String getPreferenceKey() {
69        return KEY_TIMEZONE;
70    }
71
72    @VisibleForTesting
73    CharSequence getTimeZoneOffsetAndName() {
74        final Calendar now = Calendar.getInstance();
75        return ZoneGetter.getTimeZoneOffsetAndName(mContext,
76                now.getTimeZone(), now.getTime());
77    }
78}
79