1 /* 2 * Copyright (C) 2011 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.inputmethod; 18 19 import android.app.Activity; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.database.Cursor; 23 import android.os.Bundle; 24 import android.provider.UserDictionary; 25 import android.support.v7.preference.Preference; 26 import android.support.v7.preference.PreferenceGroup; 27 import android.text.TextUtils; 28 import android.view.inputmethod.InputMethodInfo; 29 import android.view.inputmethod.InputMethodManager; 30 import android.view.inputmethod.InputMethodSubtype; 31 32 import com.android.internal.logging.MetricsProto.MetricsEvent; 33 import com.android.settings.R; 34 import com.android.settings.SettingsPreferenceFragment; 35 import com.android.settings.Utils; 36 37 import java.util.List; 38 import java.util.Locale; 39 import java.util.TreeSet; 40 41 public class UserDictionaryList extends SettingsPreferenceFragment { 42 public static final String USER_DICTIONARY_SETTINGS_INTENT_ACTION = 43 "android.settings.USER_DICTIONARY_SETTINGS"; 44 private String mLocale; 45 46 @Override 47 protected int getMetricsCategory() { 48 return MetricsEvent.INPUTMETHOD_USER_DICTIONARY; 49 } 50 51 @Override 52 public void onCreate(Bundle icicle) { 53 super.onCreate(icicle); 54 setPreferenceScreen(getPreferenceManager().createPreferenceScreen(getActivity())); 55 } 56 57 @Override 58 public void onActivityCreated(Bundle savedInstanceState) { 59 super.onActivityCreated(savedInstanceState); 60 getActivity().getActionBar().setTitle(R.string.user_dict_settings_title); 61 62 final Intent intent = getActivity().getIntent(); 63 final String localeFromIntent = 64 null == intent ? null : intent.getStringExtra("locale"); 65 66 final Bundle arguments = getArguments(); 67 final String localeFromArguments = 68 null == arguments ? null : arguments.getString("locale"); 69 70 final String locale; 71 if (null != localeFromArguments) { 72 locale = localeFromArguments; 73 } else if (null != localeFromIntent) { 74 locale = localeFromIntent; 75 } else { 76 locale = null; 77 } 78 mLocale = locale; 79 } 80 81 public static TreeSet<String> getUserDictionaryLocalesSet(Context context) { 82 final Cursor cursor = context.getContentResolver().query( 83 UserDictionary.Words.CONTENT_URI, new String[] { UserDictionary.Words.LOCALE }, 84 null, null, null); 85 final TreeSet<String> localeSet = new TreeSet<String>(); 86 if (null == cursor) { 87 // The user dictionary service is not present or disabled. Return null. 88 return null; 89 } 90 try { 91 if (cursor.moveToFirst()) { 92 final int columnIndex = cursor.getColumnIndex(UserDictionary.Words.LOCALE); 93 do { 94 final String locale = cursor.getString(columnIndex); 95 localeSet.add(null != locale ? locale : ""); 96 } while (cursor.moveToNext()); 97 } 98 } finally { 99 cursor.close(); 100 } 101 102 // CAVEAT: Keep this for consistency of the implementation between Keyboard and Settings 103 // if (!UserDictionarySettings.IS_SHORTCUT_API_SUPPORTED) { 104 // // For ICS, we need to show "For all languages" in case that the keyboard locale 105 // // is different from the system locale 106 // localeSet.add(""); 107 // } 108 109 final InputMethodManager imm = 110 (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE); 111 final List<InputMethodInfo> imis = imm.getEnabledInputMethodList(); 112 for (final InputMethodInfo imi : imis) { 113 final List<InputMethodSubtype> subtypes = 114 imm.getEnabledInputMethodSubtypeList( 115 imi, true /* allowsImplicitlySelectedSubtypes */); 116 for (InputMethodSubtype subtype : subtypes) { 117 final String locale = subtype.getLocale(); 118 if (!TextUtils.isEmpty(locale)) { 119 localeSet.add(locale); 120 } 121 } 122 } 123 124 // We come here after we have collected locales from existing user dictionary entries and 125 // enabled subtypes. If we already have the locale-without-country version of the system 126 // locale, we don't add the system locale to avoid confusion even though it's technically 127 // correct to add it. 128 if (!localeSet.contains(Locale.getDefault().getLanguage().toString())) { 129 localeSet.add(Locale.getDefault().toString()); 130 } 131 132 return localeSet; 133 } 134 135 /** 136 * Creates the entries that allow the user to go into the user dictionary for each locale. 137 * @param userDictGroup The group to put the settings in. 138 */ 139 protected void createUserDictSettings(PreferenceGroup userDictGroup) { 140 final Activity activity = getActivity(); 141 userDictGroup.removeAll(); 142 final TreeSet<String> localeSet = 143 UserDictionaryList.getUserDictionaryLocalesSet(activity); 144 if (mLocale != null) { 145 // If the caller explicitly specify empty string as a locale, we'll show "all languages" 146 // in the list. 147 localeSet.add(mLocale); 148 } 149 if (localeSet.size() > 1) { 150 // Have an "All languages" entry in the languages list if there are two or more active 151 // languages 152 localeSet.add(""); 153 } 154 155 if (localeSet.isEmpty()) { 156 userDictGroup.addPreference(createUserDictionaryPreference(null, activity)); 157 } else { 158 for (String locale : localeSet) { 159 userDictGroup.addPreference(createUserDictionaryPreference(locale, activity)); 160 } 161 } 162 } 163 164 /** 165 * Create a single User Dictionary Preference object, with its parameters set. 166 * @param locale The locale for which this user dictionary is for. 167 * @return The corresponding preference. 168 */ 169 protected Preference createUserDictionaryPreference(String locale, Activity activity) { 170 final Preference newPref = new Preference(getPrefContext()); 171 final Intent intent = new Intent(USER_DICTIONARY_SETTINGS_INTENT_ACTION); 172 if (null == locale) { 173 newPref.setTitle(Locale.getDefault().getDisplayName()); 174 } else { 175 if ("".equals(locale)) 176 newPref.setTitle(getString(R.string.user_dict_settings_all_languages)); 177 else 178 newPref.setTitle(Utils.createLocaleFromString(locale).getDisplayName()); 179 intent.putExtra("locale", locale); 180 newPref.getExtras().putString("locale", locale); 181 } 182 newPref.setIntent(intent); 183 newPref.setFragment(com.android.settings.UserDictionarySettings.class.getName()); 184 return newPref; 185 } 186 187 @Override 188 public void onResume() { 189 super.onResume(); 190 createUserDictSettings(getPreferenceScreen()); 191 } 192 } 193