1 /* 2 * Copyright (C) 2022 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.regionalpreferences; 18 19 import android.content.Context; 20 import android.os.LocaleList; 21 22 import com.android.internal.app.LocaleStore; 23 import com.android.settings.core.BasePreferenceController; 24 import com.android.settings.localepicker.LocaleFeatureProviderImpl; 25 26 import java.util.HashSet; 27 import java.util.Locale; 28 import java.util.Set; 29 30 /** A controller for the entry of Numbering System's page */ 31 public class NumberingSystemController extends BasePreferenceController { 32 private static final String TAG = NumberingSystemController.class.getSimpleName(); 33 34 private LocaleList mLocaleList; NumberingSystemController(Context context, String preferenceKey)35 public NumberingSystemController(Context context, String preferenceKey) { 36 super(context, preferenceKey); 37 // Initialize the supported languages to LocaleInfos 38 LocaleStore.fillCache(context); 39 mLocaleList = getNumberingSystemLocale(); 40 } 41 42 /** 43 * @return {@link AvailabilityStatus} for the Setting. This status is used to determine if the 44 * Setting should be shown or disabled in Settings. Further, it can be used to produce 45 * appropriate error / warning Slice in the case of unavailability. 46 * </p> 47 * The status is used for the convenience methods: {@link #isAvailable()}, {@link 48 * #isSupported()} 49 * </p> 50 * The inherited class doesn't need to check work profile if android:forWork="true" is set in 51 * preference xml. 52 */ 53 @Override getAvailabilityStatus()54 public int getAvailabilityStatus() { 55 return mLocaleList.isEmpty() ? CONDITIONALLY_UNAVAILABLE : AVAILABLE; 56 } 57 getNumberingSystemLocale()58 private static LocaleList getNumberingSystemLocale() { 59 LocaleList localeList = LocaleList.getDefault(); 60 Set<Locale> localesHasNumberingSystems = new HashSet<>(); 61 for (int i = 0; i < localeList.size(); i++) { 62 Locale locale = localeList.get(i); 63 LocaleStore.LocaleInfo localeInfo = LocaleStore.getLocaleInfo(locale); 64 if (localeInfo.hasNumberingSystems()) { 65 localesHasNumberingSystems.add(locale); 66 } 67 } 68 return convertToLocaleList(localesHasNumberingSystems); 69 } 70 convertToLocaleList(Set<Locale> locales)71 private static LocaleList convertToLocaleList(Set<Locale> locales) { 72 if (locales.isEmpty()) { 73 return LocaleList.getEmptyLocaleList(); 74 } 75 return new LocaleList(locales.stream().toArray(Locale[]::new)); 76 } 77 78 @Override getSummary()79 public CharSequence getSummary() { 80 return new LocaleFeatureProviderImpl().getLocaleNames(getNumberingSystemLocale()); 81 } 82 } 83