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.language; 18 19 import android.content.Context; 20 import android.os.Bundle; 21 22 import androidx.fragment.app.Fragment; 23 import androidx.preference.Preference; 24 25 import com.android.settings.core.BasePreferenceController; 26 import com.android.settings.inputmethod.UserDictionaryList; 27 import com.android.settings.inputmethod.UserDictionaryListPreferenceController; 28 import com.android.settings.inputmethod.UserDictionarySettings; 29 30 import java.util.TreeSet; 31 32 public class UserDictionaryPreferenceController extends BasePreferenceController { 33 UserDictionaryPreferenceController(Context context, String key)34 public UserDictionaryPreferenceController(Context context, String key) { 35 super(context, key); 36 } 37 38 @Override getAvailabilityStatus()39 public int getAvailabilityStatus() { 40 return AVAILABLE; 41 } 42 43 @Override updateState(Preference preference)44 public void updateState(Preference preference) { 45 if (!isAvailable() || preference == null) { 46 return; 47 } 48 final TreeSet<String> localeSet = getDictionaryLocales(); 49 final Bundle extras = preference.getExtras(); 50 final Class<? extends Fragment> targetFragment; 51 if (localeSet.size() <= 1) { 52 if (!localeSet.isEmpty()) { 53 // If the size of localeList is 0, we don't set the locale 54 // parameter in the extras. This will be interpreted by the 55 // UserDictionarySettings class as meaning 56 // "the current locale". Note that with the current code for 57 // UserDictionaryListPreferenceController#getUserDictionaryLocalesSet() 58 // the locale list always has at least one element, since it 59 // always includes the current locale explicitly. 60 // @see UserDictionaryListPreferenceController.getUserDictionaryLocalesSet(). 61 extras.putString("locale", localeSet.first()); 62 } 63 targetFragment = UserDictionarySettings.class; 64 } else { 65 targetFragment = UserDictionaryList.class; 66 } 67 preference.setFragment(targetFragment.getCanonicalName()); 68 } 69 getDictionaryLocales()70 protected TreeSet<String> getDictionaryLocales() { 71 return UserDictionaryListPreferenceController.getUserDictionaryLocalesSet(mContext); 72 } 73 } 74