1/* 2 * Copyright (C) 2013 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.inputmethod.latin.userdictionary; 18 19import android.app.Activity; 20import android.content.Context; 21import android.content.Intent; 22import android.database.Cursor; 23import android.os.Bundle; 24import android.preference.Preference; 25import android.preference.PreferenceFragment; 26import android.preference.PreferenceGroup; 27import android.provider.UserDictionary; 28import android.text.TextUtils; 29import android.view.inputmethod.InputMethodInfo; 30import android.view.inputmethod.InputMethodManager; 31import android.view.inputmethod.InputMethodSubtype; 32 33import com.android.inputmethod.latin.R; 34import com.android.inputmethod.latin.utils.LocaleUtils; 35 36import java.util.List; 37import java.util.Locale; 38import java.util.TreeSet; 39 40// Caveat: This class is basically taken from 41// packages/apps/Settings/src/com/android/settings/inputmethod/UserDictionaryList.java 42// in order to deal with some devices that have issues with the user dictionary handling 43 44public class UserDictionaryList extends PreferenceFragment { 45 46 public static final String USER_DICTIONARY_SETTINGS_INTENT_ACTION = 47 "android.settings.USER_DICTIONARY_SETTINGS"; 48 49 @Override 50 public void onCreate(Bundle icicle) { 51 super.onCreate(icicle); 52 setPreferenceScreen(getPreferenceManager().createPreferenceScreen(getActivity())); 53 } 54 55 public static TreeSet<String> getUserDictionaryLocalesSet(Activity activity) { 56 final Cursor cursor = activity.getContentResolver().query(UserDictionary.Words.CONTENT_URI, 57 new String[] { UserDictionary.Words.LOCALE }, 58 null, null, null); 59 final TreeSet<String> localeSet = new TreeSet<>(); 60 if (null == cursor) { 61 // The user dictionary service is not present or disabled. Return null. 62 return null; 63 } 64 try { 65 if (cursor.moveToFirst()) { 66 final int columnIndex = cursor.getColumnIndex(UserDictionary.Words.LOCALE); 67 do { 68 final String locale = cursor.getString(columnIndex); 69 localeSet.add(null != locale ? locale : ""); 70 } while (cursor.moveToNext()); 71 } 72 } finally { 73 cursor.close(); 74 } 75 if (!UserDictionarySettings.IS_SHORTCUT_API_SUPPORTED) { 76 // For ICS, we need to show "For all languages" in case that the keyboard locale 77 // is different from the system locale 78 localeSet.add(""); 79 } 80 81 final InputMethodManager imm = 82 (InputMethodManager)activity.getSystemService(Context.INPUT_METHOD_SERVICE); 83 final List<InputMethodInfo> imis = imm.getEnabledInputMethodList(); 84 for (final InputMethodInfo imi : imis) { 85 final List<InputMethodSubtype> subtypes = 86 imm.getEnabledInputMethodSubtypeList( 87 imi, true /* allowsImplicitlySelectedSubtypes */); 88 for (InputMethodSubtype subtype : subtypes) { 89 final String locale = subtype.getLocale(); 90 if (!TextUtils.isEmpty(locale)) { 91 localeSet.add(locale); 92 } 93 } 94 } 95 96 // We come here after we have collected locales from existing user dictionary entries and 97 // enabled subtypes. If we already have the locale-without-country version of the system 98 // locale, we don't add the system locale to avoid confusion even though it's technically 99 // correct to add it. 100 if (!localeSet.contains(Locale.getDefault().getLanguage().toString())) { 101 localeSet.add(Locale.getDefault().toString()); 102 } 103 104 return localeSet; 105 } 106 107 /** 108 * Creates the entries that allow the user to go into the user dictionary for each locale. 109 * @param userDictGroup The group to put the settings in. 110 */ 111 protected void createUserDictSettings(PreferenceGroup userDictGroup) { 112 final Activity activity = getActivity(); 113 userDictGroup.removeAll(); 114 final TreeSet<String> localeSet = 115 UserDictionaryList.getUserDictionaryLocalesSet(activity); 116 117 if (localeSet.size() > 1) { 118 // Have an "All languages" entry in the languages list if there are two or more active 119 // languages 120 localeSet.add(""); 121 } 122 123 if (localeSet.isEmpty()) { 124 userDictGroup.addPreference(createUserDictionaryPreference(null, activity)); 125 } else { 126 for (String locale : localeSet) { 127 userDictGroup.addPreference(createUserDictionaryPreference(locale, activity)); 128 } 129 } 130 } 131 132 /** 133 * Create a single User Dictionary Preference object, with its parameters set. 134 * @param locale The locale for which this user dictionary is for. 135 * @return The corresponding preference. 136 */ 137 protected Preference createUserDictionaryPreference(String locale, Activity activity) { 138 final Preference newPref = new Preference(getActivity()); 139 final Intent intent = new Intent(USER_DICTIONARY_SETTINGS_INTENT_ACTION); 140 if (null == locale) { 141 newPref.setTitle(Locale.getDefault().getDisplayName()); 142 } else { 143 if ("".equals(locale)) 144 newPref.setTitle(getString(R.string.user_dict_settings_all_languages)); 145 else 146 newPref.setTitle(LocaleUtils.constructLocaleFromString(locale).getDisplayName()); 147 intent.putExtra("locale", locale); 148 newPref.getExtras().putString("locale", locale); 149 } 150 newPref.setIntent(intent); 151 newPref.setFragment(UserDictionarySettings.class.getName()); 152 return newPref; 153 } 154 155 @Override 156 public void onResume() { 157 super.onResume(); 158 createUserDictSettings(getPreferenceScreen()); 159 } 160} 161