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 17 package com.android.settings.datetime; 18 19 import android.content.Context; 20 21 import androidx.annotation.VisibleForTesting; 22 import androidx.preference.Preference; 23 24 import com.android.settings.core.PreferenceControllerMixin; 25 import com.android.settingslib.RestrictedPreference; 26 import com.android.settingslib.core.AbstractPreferenceController; 27 import com.android.settingslib.datetime.ZoneGetter; 28 29 import java.util.Calendar; 30 31 public class TimeZonePreferenceController extends AbstractPreferenceController 32 implements PreferenceControllerMixin { 33 34 private static final String KEY_TIMEZONE = "timezone"; 35 36 private final AutoTimeZonePreferenceController mAutoTimeZonePreferenceController; 37 TimeZonePreferenceController(Context context, AutoTimeZonePreferenceController autoTimeZonePreferenceController)38 public TimeZonePreferenceController(Context context, 39 AutoTimeZonePreferenceController autoTimeZonePreferenceController) { 40 super(context); 41 mAutoTimeZonePreferenceController = autoTimeZonePreferenceController; 42 } 43 44 @Override updateState(Preference preference)45 public void updateState(Preference preference) { 46 if (!(preference instanceof RestrictedPreference)) { 47 return; 48 } 49 preference.setSummary(getTimeZoneOffsetAndName()); 50 if( !((RestrictedPreference) preference).isDisabledByAdmin()) { 51 preference.setEnabled(!mAutoTimeZonePreferenceController.isEnabled()); 52 } 53 } 54 55 @Override isAvailable()56 public boolean isAvailable() { 57 return true; 58 } 59 60 @Override getPreferenceKey()61 public String getPreferenceKey() { 62 return KEY_TIMEZONE; 63 } 64 65 @VisibleForTesting getTimeZoneOffsetAndName()66 CharSequence getTimeZoneOffsetAndName() { 67 final Calendar now = Calendar.getInstance(); 68 return ZoneGetter.getTimeZoneOffsetAndName(mContext, 69 now.getTimeZone(), now.getTime()); 70 } 71 } 72