/ime/latinime/src/com/googlecode/eyesfree/inputmethod/latin/InputLanguageSelection.java
http://eyes-free.googlecode.com/ · Java · 205 lines · 158 code · 23 blank · 24 comment · 22 complexity · d1c8fbd45a60186fdcb04bcaea802e89 MD5 · raw file
- /*
- * Copyright (C) 2008-2009 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
- package com.googlecode.eyesfree.inputmethod.latin;
- import android.content.SharedPreferences;
- import android.content.SharedPreferences.Editor;
- import android.content.res.Configuration;
- import android.content.res.Resources;
- import android.os.Bundle;
- import android.preference.CheckBoxPreference;
- import android.preference.PreferenceActivity;
- import android.preference.PreferenceGroup;
- import android.preference.PreferenceManager;
- import android.text.TextUtils;
- import java.text.Collator;
- import java.util.ArrayList;
- import java.util.Arrays;
- import java.util.Locale;
- public class InputLanguageSelection extends PreferenceActivity {
- private String mSelectedLanguages;
- private ArrayList<Loc> mAvailableLanguages = new ArrayList<Loc>();
- private static final String[] BLACKLIST_LANGUAGES = {
- "ko", "ja", "zh", "el"
- };
- private static class Loc implements Comparable<Object> {
- static Collator sCollator = Collator.getInstance();
- String label;
- Locale locale;
- public Loc(String label, Locale locale) {
- this.label = label;
- this.locale = locale;
- }
- @Override
- public String toString() {
- return this.label;
- }
- public int compareTo(Object o) {
- return sCollator.compare(this.label, ((Loc) o).label);
- }
- }
- @Override
- protected void onCreate(Bundle icicle) {
- super.onCreate(icicle);
- addPreferencesFromResource(R.xml.language_prefs);
- // Get the settings preferences
- SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
- mSelectedLanguages = sp.getString(LatinIME.PREF_SELECTED_LANGUAGES, "");
- String[] languageList = mSelectedLanguages.split(",");
- mAvailableLanguages = getUniqueLocales();
- PreferenceGroup parent = getPreferenceScreen();
- for (int i = 0; i < mAvailableLanguages.size(); i++) {
- CheckBoxPreference pref = new CheckBoxPreference(this);
- Locale locale = mAvailableLanguages.get(i).locale;
- pref.setTitle(LanguageSwitcher.toTitleCase(locale.getDisplayName(locale)));
- boolean checked = isLocaleIn(locale, languageList);
- pref.setChecked(checked);
- if (hasDictionary(locale)) {
- pref.setSummary(R.string.has_dictionary);
- }
- parent.addPreference(pref);
- }
- }
- private boolean isLocaleIn(Locale locale, String[] list) {
- String lang = get5Code(locale);
- for (int i = 0; i < list.length; i++) {
- if (lang.equalsIgnoreCase(list[i])) return true;
- }
- return false;
- }
- private boolean hasDictionary(Locale locale) {
- Resources res = getResources();
- Configuration conf = res.getConfiguration();
- Locale saveLocale = conf.locale;
- boolean haveDictionary = false;
- conf.locale = locale;
- res.updateConfiguration(conf, res.getDisplayMetrics());
- int[] dictionaries = LatinIME.getDictionary(res);
- BinaryDictionary bd = new BinaryDictionary(this, dictionaries, Suggest.DIC_MAIN);
- // Is the dictionary larger than a placeholder? Arbitrarily chose a lower limit of
- // 4000-5000 words, whereas the LARGE_DICTIONARY is about 20000+ words.
- if (bd.getSize() > Suggest.LARGE_DICTIONARY_THRESHOLD / 4) {
- haveDictionary = true;
- }
- bd.close();
- conf.locale = saveLocale;
- res.updateConfiguration(conf, res.getDisplayMetrics());
- return haveDictionary;
- }
- private String get5Code(Locale locale) {
- String country = locale.getCountry();
- return locale.getLanguage()
- + (TextUtils.isEmpty(country) ? "" : "_" + country);
- }
- @Override
- protected void onResume() {
- super.onResume();
- }
- @Override
- protected void onPause() {
- super.onPause();
- // Save the selected languages
- String checkedLanguages = "";
- PreferenceGroup parent = getPreferenceScreen();
- int count = parent.getPreferenceCount();
- for (int i = 0; i < count; i++) {
- CheckBoxPreference pref = (CheckBoxPreference) parent.getPreference(i);
- if (pref.isChecked()) {
- Locale locale = mAvailableLanguages.get(i).locale;
- checkedLanguages += get5Code(locale) + ",";
- }
- }
- if (checkedLanguages.length() < 1) checkedLanguages = null; // Save null
- SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
- Editor editor = sp.edit();
- editor.putString(LatinIME.PREF_SELECTED_LANGUAGES, checkedLanguages);
- SharedPreferencesCompat.apply(editor);
- }
- ArrayList<Loc> getUniqueLocales() {
- String[] locales = getAssets().getLocales();
- Arrays.sort(locales);
- ArrayList<Loc> uniqueLocales = new ArrayList<Loc>();
- final int origSize = locales.length;
- Loc[] preprocess = new Loc[origSize];
- int finalSize = 0;
- for (int i = 0 ; i < origSize; i++ ) {
- String s = locales[i];
- int len = s.length();
- if (len == 5) {
- String language = s.substring(0, 2);
- String country = s.substring(3, 5);
- Locale l = new Locale(language, country);
- // Exclude languages that are not relevant to LatinIME
- if (arrayContains(BLACKLIST_LANGUAGES, language)) continue;
- if (finalSize == 0) {
- preprocess[finalSize++] =
- new Loc(LanguageSwitcher.toTitleCase(l.getDisplayName(l)), l);
- } else {
- // check previous entry:
- // same lang and a country -> upgrade to full name and
- // insert ours with full name
- // diff lang -> insert ours with lang-only name
- if (preprocess[finalSize-1].locale.getLanguage().equals(
- language)) {
- preprocess[finalSize-1].label = LanguageSwitcher.toTitleCase(
- preprocess[finalSize-1].locale.getDisplayName());
- preprocess[finalSize++] =
- new Loc(LanguageSwitcher.toTitleCase(l.getDisplayName()), l);
- } else {
- String displayName;
- if (s.equals("zz_ZZ")) {
- } else {
- displayName = LanguageSwitcher.toTitleCase(l.getDisplayName(l));
- preprocess[finalSize++] = new Loc(displayName, l);
- }
- }
- }
- }
- }
- for (int i = 0; i < finalSize ; i++) {
- uniqueLocales.add(preprocess[i]);
- }
- return uniqueLocales;
- }
- private boolean arrayContains(String[] array, String value) {
- for (int i = 0; i < array.length; i++) {
- if (array[i].equalsIgnoreCase(value)) return true;
- }
- return false;
- }
- }