1 /* 2 * Copyright (C) 2014 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.inputmethod.latin.settings; 18 19 import android.app.Activity; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.content.SharedPreferences; 23 import android.content.pm.PackageManager; 24 import android.content.pm.ResolveInfo; 25 import android.os.Build; 26 import android.os.Bundle; 27 import android.preference.ListPreference; 28 import android.preference.Preference; 29 30 import com.android.inputmethod.dictionarypack.DictionarySettingsActivity; 31 import com.android.inputmethod.latin.R; 32 import com.android.inputmethod.latin.userdictionary.UserDictionaryList; 33 import com.android.inputmethod.latin.userdictionary.UserDictionarySettings; 34 35 import java.util.TreeSet; 36 37 /** 38 * "Text correction" settings sub screen. 39 * 40 * This settings sub screen handles the following text correction preferences. 41 * - Personal dictionary 42 * - Add-on dictionaries 43 * - Block offensive words 44 * - Auto-correction 45 * - Show correction suggestions 46 * - Personalized suggestions 47 * - Suggest Contact names 48 * - Next-word suggestions 49 */ 50 public final class CorrectionSettingsFragment extends SubScreenFragment { 51 private static final boolean DBG_USE_INTERNAL_PERSONAL_DICTIONARY_SETTINGS = false; 52 private static final boolean USE_INTERNAL_PERSONAL_DICTIONARY_SETTIGS = 53 DBG_USE_INTERNAL_PERSONAL_DICTIONARY_SETTINGS 54 || Build.VERSION.SDK_INT <= Build.VERSION_CODES.JELLY_BEAN_MR2; 55 56 @Override onCreate(final Bundle icicle)57 public void onCreate(final Bundle icicle) { 58 super.onCreate(icicle); 59 addPreferencesFromResource(R.xml.prefs_screen_correction); 60 61 final Context context = getActivity(); 62 final PackageManager pm = context.getPackageManager(); 63 64 ensureConsistencyOfAutoCorrectionSettings(); 65 66 final Preference dictionaryLink = findPreference(Settings.PREF_CONFIGURE_DICTIONARIES_KEY); 67 final Intent intent = dictionaryLink.getIntent(); 68 intent.setClassName(context.getPackageName(), DictionarySettingsActivity.class.getName()); 69 final int number = pm.queryIntentActivities(intent, 0).size(); 70 if (0 >= number) { 71 removePreference(Settings.PREF_CONFIGURE_DICTIONARIES_KEY); 72 } 73 74 final Preference editPersonalDictionary = 75 findPreference(Settings.PREF_EDIT_PERSONAL_DICTIONARY); 76 final Intent editPersonalDictionaryIntent = editPersonalDictionary.getIntent(); 77 final ResolveInfo ri = USE_INTERNAL_PERSONAL_DICTIONARY_SETTIGS ? null 78 : pm.resolveActivity( 79 editPersonalDictionaryIntent, PackageManager.MATCH_DEFAULT_ONLY); 80 if (ri == null) { 81 overwriteUserDictionaryPreference(editPersonalDictionary); 82 } 83 } 84 85 @Override onSharedPreferenceChanged(final SharedPreferences prefs, final String key)86 public void onSharedPreferenceChanged(final SharedPreferences prefs, final String key) { 87 ensureConsistencyOfAutoCorrectionSettings(); 88 } 89 ensureConsistencyOfAutoCorrectionSettings()90 private void ensureConsistencyOfAutoCorrectionSettings() { 91 final String autoCorrectionOff = getString( 92 R.string.auto_correction_threshold_mode_index_off); 93 final ListPreference autoCorrectionThresholdPref = (ListPreference)findPreference( 94 Settings.PREF_AUTO_CORRECTION_THRESHOLD); 95 final String currentSetting = autoCorrectionThresholdPref.getValue(); 96 setPreferenceEnabled( 97 Settings.PREF_BIGRAM_PREDICTIONS, !currentSetting.equals(autoCorrectionOff)); 98 } 99 overwriteUserDictionaryPreference(final Preference userDictionaryPreference)100 private void overwriteUserDictionaryPreference(final Preference userDictionaryPreference) { 101 final Activity activity = getActivity(); 102 final TreeSet<String> localeList = UserDictionaryList.getUserDictionaryLocalesSet(activity); 103 if (null == localeList) { 104 // The locale list is null if and only if the user dictionary service is 105 // not present or disabled. In this case we need to remove the preference. 106 getPreferenceScreen().removePreference(userDictionaryPreference); 107 } else if (localeList.size() <= 1) { 108 userDictionaryPreference.setFragment(UserDictionarySettings.class.getName()); 109 // If the size of localeList is 0, we don't set the locale parameter in the 110 // extras. This will be interpreted by the UserDictionarySettings class as 111 // meaning "the current locale". 112 // Note that with the current code for UserDictionaryList#getUserDictionaryLocalesSet() 113 // the locale list always has at least one element, since it always includes the current 114 // locale explicitly. @see UserDictionaryList.getUserDictionaryLocalesSet(). 115 if (localeList.size() == 1) { 116 final String locale = (String)localeList.toArray()[0]; 117 userDictionaryPreference.getExtras().putString("locale", locale); 118 } 119 } else { 120 userDictionaryPreference.setFragment(UserDictionaryList.class.getName()); 121 } 122 } 123 } 124