src/com/hughes/android/dictionary/DictionaryApplication.java

   1 // Copyright 2011 Google Inc. All Rights Reserved.
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 package com.hughes.android.dictionary;
  16
  17 import android.app.Application;
  18 import android.content.Context;
  19 import android.content.Intent;
  20 import android.content.SharedPreferences;
  21 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
  22 import android.net.Uri;
  23 import android.os.Build;
  24 import android.os.Environment;
  25 import android.preference.PreferenceManager;
  26 import android.support.v4.view.MenuItemCompat;
  27 import android.util.Log;
  28 import android.util.TypedValue;
  29 import android.view.Menu;
  30 import android.view.MenuItem;
  31 import android.view.MenuItem.OnMenuItemClickListener;
  32 import android.view.View;
  33 import android.widget.Button;
  34 import android.widget.ImageButton;
  35 import android.widget.ImageView.ScaleType;
  36 import android.widget.Toast;
  37
  38 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  39 import com.hughes.android.dictionary.engine.Dictionary;
  40 import com.hughes.android.dictionary.engine.Language;
  41 import com.hughes.android.dictionary.engine.Language.LanguageResources;
  42 import com.hughes.android.dictionary.engine.TransliteratorManager;
  43 import com.hughes.android.util.PersistentObjectCache;
  44 import com.hughes.util.ListUtil;
  45 import com.ibm.icu.text.Collator;
  46
  47 import java.io.BufferedReader;
  48 import java.io.File;
  49 import java.io.IOException;
  50 import java.io.InputStreamReader;
  51 import java.io.Serializable;
  52 import java.util.ArrayList;
  53 import java.util.Collections;
  54 import java.util.Comparator;
  55 import java.util.LinkedHashMap;
  56 import java.util.List;
  57 import java.util.Locale;
  58 import java.util.Map;
  59
  60 public class DictionaryApplication extends Application {
  61
  62     static final String LOG = "QuickDicApp";
  63
  64     // Static, determined by resources (and locale).
  65     // Unordered.
  66     static Map<String, DictionaryInfo> DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO = null;
  67
  68     enum Theme {
  69         DEFAULT(R.style.Theme_Default,
  70                 R.style.Theme_Default_TokenRow_Fg,
  71                 R.color.theme_default_token_row_fg,
  72                 R.drawable.theme_default_token_row_main_bg,
  73                 R.drawable.theme_default_token_row_other_bg,
  74                 R.drawable.theme_default_normal_row_bg),
  75
  76         LIGHT(R.style.Theme_Light,
  77                 R.style.Theme_Light_TokenRow_Fg,
  78                 R.color.theme_light_token_row_fg,
  79                 R.drawable.theme_light_token_row_main_bg,
  80                 R.drawable.theme_light_token_row_other_bg,
  81                 R.drawable.theme_light_normal_row_bg);
  82
  83         Theme(final int themeId, final int tokenRowFg,
  84               final int tokenRowFgColor,
  85               final int tokenRowMainBg, final int tokenRowOtherBg,
  86               final int normalRowBg) {
  87             this.themeId = themeId;
  88             this.tokenRowFg = tokenRowFg;
  89             this.tokenRowFgColor = tokenRowFgColor;
  90             this.tokenRowMainBg = tokenRowMainBg;
  91             this.tokenRowOtherBg = tokenRowOtherBg;
  92             this.normalRowBg = normalRowBg;
  93         }
  94
  95         final int themeId;
  96         final int tokenRowFg;
  97         final int tokenRowFgColor;
  98         final int tokenRowMainBg;
  99         final int tokenRowOtherBg;
 100         final int normalRowBg;
 101     }
 102
 103     // Useful:
 104     // http://www.loc.gov/standards/iso639-2/php/code_list.php
 105     public static final Map<String, LanguageResources> isoCodeToResources = new LinkedHashMap<String, LanguageResources>();
 106     static {
 107         isoCodeToResources.put("AF", new LanguageResources("Afrikaans", R.string.AF,
 108                 R.drawable.flag_of_south_africa));
 109         isoCodeToResources.put("SQ", new LanguageResources("Albanian", R.string.SQ,
 110                 R.drawable.flag_of_albania));
 111         isoCodeToResources.put("AR",
 112                 new LanguageResources("Arabic", R.string.AR, R.drawable.arabic));
 113         isoCodeToResources.put("HY", new LanguageResources("Armenian", R.string.HY,
 114                 R.drawable.flag_of_armenia));
 115         isoCodeToResources.put("BE", new LanguageResources("Belarusian", R.string.BE,
 116                 R.drawable.flag_of_belarus));
 117         isoCodeToResources.put("BN", new LanguageResources("Bengali", R.string.BN));
 118         isoCodeToResources.put("BS", new LanguageResources("Bosnian", R.string.BS,
 119                 R.drawable.flag_of_bosnia_and_herzegovina));
 120         isoCodeToResources.put("BG", new LanguageResources("Bulgarian", R.string.BG,
 121                 R.drawable.flag_of_bulgaria));
 122         isoCodeToResources.put("MY", new LanguageResources("Burmese", R.string.MY,
 123                 R.drawable.flag_of_myanmar));
 124         isoCodeToResources.put("ZH", new LanguageResources("Chinese", R.string.ZH,
 125                 R.drawable.flag_of_the_peoples_republic_of_china));
 126         isoCodeToResources.put("cmn", new LanguageResources("Mandarin", R.string.cmn,
 127                 R.drawable.flag_of_the_peoples_republic_of_china));
 128         isoCodeToResources.put("yue", new LanguageResources("Cantonese", R.string.yue,
 129                 R.drawable.flag_of_hong_kong));
 130         isoCodeToResources.put("CA", new LanguageResources("Catalan", R.string.CA));
 131         isoCodeToResources.put("HR", new LanguageResources("Croatian", R.string.HR,
 132                 R.drawable.flag_of_croatia));
 133         isoCodeToResources.put("CS", new LanguageResources("Czech", R.string.CS,
 134                 R.drawable.flag_of_the_czech_republic));
 135         isoCodeToResources.put("DA", new LanguageResources("Danish", R.string.DA,
 136                 R.drawable.flag_of_denmark));
 137         isoCodeToResources.put("NL", new LanguageResources("Dutch", R.string.NL,
 138                 R.drawable.flag_of_the_netherlands));
 139         isoCodeToResources.put("EN", new LanguageResources("English", R.string.EN,
 140                 R.drawable.flag_of_the_united_kingdom));
 141         isoCodeToResources.put("EO", new LanguageResources("Esperanto", R.string.EO,
 142                 R.drawable.flag_of_esperanto));
 143         isoCodeToResources.put("ET", new LanguageResources("Estonian", R.string.ET,
 144                 R.drawable.flag_of_estonia));
 145         isoCodeToResources.put("FI", new LanguageResources("Finnish", R.string.FI,
 146                 R.drawable.flag_of_finland));
 147         isoCodeToResources.put("FR", new LanguageResources("French", R.string.FR,
 148                 R.drawable.flag_of_france));
 149         isoCodeToResources.put("DE", new LanguageResources("German", R.string.DE,
 150                 R.drawable.flag_of_germany));
 151         isoCodeToResources.put("EL", new LanguageResources("Greek", R.string.EL,
 152                 R.drawable.flag_of_greece));
 153         isoCodeToResources.put("grc", new LanguageResources("Ancient Greek", R.string.grc));
 154         isoCodeToResources.put("haw", new LanguageResources("Hawaiian", R.string.haw,
 155                 R.drawable.flag_of_hawaii));
 156         isoCodeToResources.put("HE", new LanguageResources("Hebrew", R.string.HE,
 157                 R.drawable.flag_of_israel));
 158         isoCodeToResources.put("HI", new LanguageResources("Hindi", R.string.HI, R.drawable.hindi));
 159         isoCodeToResources.put("HU", new LanguageResources("Hungarian", R.string.HU,
 160                 R.drawable.flag_of_hungary));
 161         isoCodeToResources.put("IS", new LanguageResources("Icelandic", R.string.IS,
 162                 R.drawable.flag_of_iceland));
 163         isoCodeToResources.put("ID", new LanguageResources("Indonesian", R.string.ID,
 164                 R.drawable.flag_of_indonesia));
 165         isoCodeToResources.put("GA", new LanguageResources("Irish", R.string.GA,
 166                 R.drawable.flag_of_ireland));
 167         isoCodeToResources.put("GD", new LanguageResources("Scottish Gaelic", R.string.GD,
 168                 R.drawable.flag_of_scotland));
 169         isoCodeToResources.put("GV", new LanguageResources("Manx", R.string.GV,
 170                 R.drawable.flag_of_the_isle_of_man));
 171         isoCodeToResources.put("IT", new LanguageResources("Italian", R.string.IT,
 172                 R.drawable.flag_of_italy));
 173         isoCodeToResources.put("LA", new LanguageResources("Latin", R.string.LA));
 174         isoCodeToResources.put("LV", new LanguageResources("Latvian", R.string.LV,
 175                 R.drawable.flag_of_latvia));
 176         isoCodeToResources.put("LT", new LanguageResources("Lithuanian", R.string.LT,
 177                 R.drawable.flag_of_lithuania));
 178         isoCodeToResources.put("JA", new LanguageResources("Japanese", R.string.JA,
 179                 R.drawable.flag_of_japan));
 180         isoCodeToResources.put("KO", new LanguageResources("Korean", R.string.KO,
 181                 R.drawable.flag_of_south_korea));
 182         isoCodeToResources.put("KU", new LanguageResources("Kurdish", R.string.KU));
 183         isoCodeToResources.put("MS", new LanguageResources("Malay", R.string.MS,
 184                 R.drawable.flag_of_malaysia));
 185         isoCodeToResources.put("MI", new LanguageResources("Maori", R.string.MI,
 186                 R.drawable.flag_of_new_zealand));
 187         isoCodeToResources.put("MN", new LanguageResources("Mongolian", R.string.MN,
 188                 R.drawable.flag_of_mongolia));
 189         isoCodeToResources.put("NE", new LanguageResources("Nepali", R.string.NE,
 190                 R.drawable.flag_of_nepal));
 191         isoCodeToResources.put("NO", new LanguageResources("Norwegian", R.string.NO,
 192                 R.drawable.flag_of_norway));
 193         isoCodeToResources.put("FA", new LanguageResources("Persian", R.string.FA,
 194                 R.drawable.flag_of_iran));
 195         isoCodeToResources.put("PL", new LanguageResources("Polish", R.string.PL,
 196                 R.drawable.flag_of_poland));
 197         isoCodeToResources.put("PT", new LanguageResources("Portuguese", R.string.PT,
 198                 R.drawable.flag_of_portugal));
 199         isoCodeToResources.put("PA", new LanguageResources("Punjabi", R.string.PA));
 200         isoCodeToResources.put("RO", new LanguageResources("Romanian", R.string.RO,
 201                 R.drawable.flag_of_romania));
 202         isoCodeToResources.put("RU", new LanguageResources("Russian", R.string.RU,
 203                 R.drawable.flag_of_russia));
 204         isoCodeToResources.put("SA", new LanguageResources("Sanskrit", R.string.SA));
 205         isoCodeToResources.put("SR", new LanguageResources("Serbian", R.string.SR,
 206                 R.drawable.flag_of_serbia));
 207         isoCodeToResources.put("SK", new LanguageResources("Slovak", R.string.SK,
 208                 R.drawable.flag_of_slovakia));
 209         isoCodeToResources.put("SL", new LanguageResources("Slovenian", R.string.SL,
 210                 R.drawable.flag_of_slovenia));
 211         isoCodeToResources.put("SO", new LanguageResources("Somali", R.string.SO,
 212                 R.drawable.flag_of_somalia));
 213         isoCodeToResources.put("ES", new LanguageResources("Spanish", R.string.ES,
 214                 R.drawable.flag_of_spain));
 215         isoCodeToResources.put("SW", new LanguageResources("Swahili", R.string.SW));
 216         isoCodeToResources.put("SV", new LanguageResources("Swedish", R.string.SV,
 217                 R.drawable.flag_of_sweden));
 218         isoCodeToResources.put("TL", new LanguageResources("Tagalog", R.string.TL));
 219         isoCodeToResources.put("TG", new LanguageResources("Tajik", R.string.TG,
 220                 R.drawable.flag_of_tajikistan));
 221         isoCodeToResources.put("TH", new LanguageResources("Thai", R.string.TH,
 222                 R.drawable.flag_of_thailand));
 223         isoCodeToResources.put("BO", new LanguageResources("Tibetan", R.string.BO));
 224         isoCodeToResources.put("TR", new LanguageResources("Turkish", R.string.TR,
 225                 R.drawable.flag_of_turkey));
 226         isoCodeToResources.put("UK", new LanguageResources("Ukrainian", R.string.UK,
 227                 R.drawable.flag_of_ukraine));
 228         isoCodeToResources.put("UR", new LanguageResources("Urdu", R.string.UR));
 229         isoCodeToResources.put("VI", new LanguageResources("Vietnamese", R.string.VI,
 230                 R.drawable.flag_of_vietnam));
 231         isoCodeToResources.put("CI", new LanguageResources("Welsh", R.string.CI,
 232                 R.drawable.flag_of_wales_2));
 233         isoCodeToResources.put("YI", new LanguageResources("Yiddish", R.string.YI));
 234         isoCodeToResources.put("ZU", new LanguageResources("Zulu", R.string.ZU));
 235         isoCodeToResources.put("AZ", new LanguageResources("Azeri", R.string.AZ,
 236                 R.drawable.flag_of_azerbaijan));
 237         isoCodeToResources.put("EU", new LanguageResources("Basque", R.string.EU,
 238                 R.drawable.flag_of_the_basque_country));
 239         isoCodeToResources.put("BR", new LanguageResources("Breton", R.string.BR));
 240         isoCodeToResources.put("MR", new LanguageResources("Marathi", R.string.MR));
 241         isoCodeToResources.put("FO", new LanguageResources("Faroese", R.string.FO));
 242         isoCodeToResources.put("GL", new LanguageResources("Galician", R.string.GL,
 243                 R.drawable.flag_of_galicia));
 244         isoCodeToResources.put("KA", new LanguageResources("Georgian", R.string.KA,
 245                 R.drawable.flag_of_georgia));
 246         isoCodeToResources.put("HT", new LanguageResources("Haitian Creole", R.string.HT,
 247                 R.drawable.flag_of_haiti));
 248         isoCodeToResources.put("LB", new LanguageResources("Luxembourgish", R.string.LB,
 249                 R.drawable.flag_of_luxembourg));
 250         isoCodeToResources.put("MK", new LanguageResources("Macedonian", R.string.MK,
 251                 R.drawable.flag_of_macedonia));
 252         isoCodeToResources.put("LO", new LanguageResources("Lao", R.string.LO,
 253                 R.drawable.flag_of_laos));
 254         isoCodeToResources.put("ML", new LanguageResources("Malayalam", R.string.ML));
 255         isoCodeToResources.put("SL", new LanguageResources("Slovenian", R.string.SL,
 256                 R.drawable.flag_of_slovenia));
 257         isoCodeToResources.put("TA", new LanguageResources("Tamil", R.string.TA));
 258         isoCodeToResources.put("SH", new LanguageResources("Serbo-Croatian", R.string.SH));
 259         isoCodeToResources.put("SD", new LanguageResources("Sindhi", R.string.SD));
 260
 261         // Hack to allow lower-case ISO codes to work:
 262         for (final String isoCode : new ArrayList<String>(isoCodeToResources.keySet())) {
 263             isoCodeToResources.put(isoCode.toLowerCase(), isoCodeToResources.get(isoCode));
 264         }
 265
 266     }
 267
 268     static final class DictionaryConfig implements Serializable {
 269         private static final long serialVersionUID = -1444177164708201263L;
 270         // User-ordered list, persisted, just the ones that are/have been
 271         // present.
 272         final List<String> dictionaryFilesOrdered = new ArrayList<String>();
 273
 274         final Map<String, DictionaryInfo> uncompressedFilenameToDictionaryInfo = new LinkedHashMap<String, DictionaryInfo>();
 275
 276         /**
 277          * Sometimes a deserialized version of this data structure isn't valid.
 278          * @return
 279          */
 280         boolean isValid() {
 281             return uncompressedFilenameToDictionaryInfo != null && dictionaryFilesOrdered != null;
 282         }
 283     }
 284
 285     DictionaryConfig dictionaryConfig = null;
 286
 287     int languageButtonPixels = -1;
 288
 289     static synchronized void staticInit(final Context context) {
 290         if (DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO != null) {
 291             return;
 292         }
 293         DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO = new LinkedHashMap<String, DictionaryInfo>();
 294         final BufferedReader reader = new BufferedReader(
 295                 new InputStreamReader(context.getResources().openRawResource(R.raw.dictionary_info)));
 296         try {
 297             String line;
 298             while ((line = reader.readLine()) != null) {
 299                 if (line.startsWith("#") || line.length() == 0) {
 300                     continue;
 301                 }
 302                 final DictionaryInfo dictionaryInfo = new DictionaryInfo(line);
 303                 DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO.put(
 304                         dictionaryInfo.uncompressedFilename, dictionaryInfo);
 305             }
 306             reader.close();
 307         } catch (IOException e) {
 308             Log.e(LOG, "Failed to load downloadable dictionary lists.", e);
 309         }
 310     }
 311
 312     private File dictDir;
 313
 314     @Override
 315     public void onCreate() {
 316         super.onCreate();
 317         Log.d("QuickDic", "Application: onCreate");
 318         TransliteratorManager.init(null);
 319         staticInit(getApplicationContext());
 320
 321         languageButtonPixels = (int) TypedValue.applyDimension(
 322                 TypedValue.COMPLEX_UNIT_DIP, 60, getResources().getDisplayMetrics());
 323
 324         // Load the dictionaries we know about.
 325         dictionaryConfig = PersistentObjectCache.init(getApplicationContext()).read(
 326                 C.DICTIONARY_CONFIGS, DictionaryConfig.class);
 327         if (dictionaryConfig == null) {
 328             dictionaryConfig = new DictionaryConfig();
 329         }
 330         if (!dictionaryConfig.isValid()) {
 331             dictionaryConfig = new DictionaryConfig();
 332         }
 333
 334         // Theme stuff.
 335         setTheme(getSelectedTheme().themeId);
 336         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 337         prefs.registerOnSharedPreferenceChangeListener(new OnSharedPreferenceChangeListener() {
 338             @Override
 339             public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
 340                     String key) {
 341                 Log.d("QuickDic", "prefs changed: " + key);
 342                 if (key.equals(getString(R.string.themeKey))) {
 343                     setTheme(getSelectedTheme().themeId);
 344                 }
 345             }
 346         });
 347     }
 348
 349     public void onCreateGlobalOptionsMenu(
 350             final Context context, final Menu menu) {
 351         final MenuItem about = menu.add(getString(R.string.about));
 352         MenuItemCompat.setShowAsAction(about, MenuItem.SHOW_AS_ACTION_NEVER);
 353         about.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 354             public boolean onMenuItemClick(final MenuItem menuItem) {
 355                 final Intent intent = new Intent(getApplicationContext(), AboutActivity.class);
 356                 context.startActivity(intent);
 357                 return false;
 358             }
 359         });
 360
 361         final MenuItem help = menu.add(getString(R.string.help));
 362         MenuItemCompat.setShowAsAction(help, MenuItem.SHOW_AS_ACTION_NEVER);
 363         help.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 364             public boolean onMenuItemClick(final MenuItem menuItem) {
 365                 context.startActivity(HtmlDisplayActivity.getHelpLaunchIntent(getApplicationContext()));
 366                 return false;
 367             }
 368         });
 369
 370         final MenuItem preferences = menu.add(getString(R.string.settings));
 371         MenuItemCompat.setShowAsAction(preferences, MenuItem.SHOW_AS_ACTION_NEVER);
 372         preferences.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 373             public boolean onMenuItemClick(final MenuItem menuItem) {
 374                 PreferenceActivity.prefsMightHaveChanged = true;
 375                 final Intent intent = new Intent(getApplicationContext(), PreferenceActivity.class);
 376                 context.startActivity(intent);
 377                 return false;
 378             }
 379         });
 380
 381         final MenuItem reportIssue = menu.add(getString(R.string.reportIssue));
 382         MenuItemCompat.setShowAsAction(reportIssue, MenuItem.SHOW_AS_ACTION_NEVER);
 383         reportIssue.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 384             public boolean onMenuItemClick(final MenuItem menuItem) {
 385                 final Intent intent = new Intent(Intent.ACTION_VIEW);
 386                 intent.setData(Uri
 387                         .parse("http://github.com/rdoeffinger/Dictionary/issues"));
 388                 context.startActivity(intent);
 389                 return false;
 390             }
 391         });
 392     }
 393
 394     public synchronized File getDictDir() {
 395         // This metaphor doesn't work, because we've already reset
 396         // prefsMightHaveChanged.
 397         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 398         String dir = prefs.getString(getString(R.string.quickdicDirectoryKey), "");
 399         if (dir.isEmpty()) {
 400             final File defaultDictDir = new File(Environment.getExternalStorageDirectory(), "quickDic");
 401             dir = defaultDictDir.getAbsolutePath();
 402         }
 403         dictDir = new File(dir);
 404         dictDir.mkdirs();
 405         if (!dictDir.isDirectory() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
 406              getApplicationContext().getExternalFilesDirs(null);
 407         }
 408         return dictDir;
 409     }
 410
 411     static public boolean checkFileCreate(File dir) {
 412         boolean res = false;
 413         File testfile = new File(dir, "quickdic_writetest");
 414         try {
 415             testfile.delete();
 416             res = testfile.createNewFile() & testfile.delete();
 417         } catch (Exception e) {
 418         }
 419         return res;
 420     }
 421
 422     public File getWordListFile() {
 423         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 424         String file = prefs.getString(getString(R.string.wordListFileKey), "");
 425         if (file.isEmpty()) {
 426             return new File(getDictDir(), "wordList.txt");
 427         }
 428         return new File(file);
 429     }
 430
 431     public Theme getSelectedTheme() {
 432         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 433         final String theme = prefs.getString(getString(R.string.themeKey), "themeLight");
 434         if (theme.equals("themeLight")) {
 435             return Theme.LIGHT;
 436         } else {
 437             return Theme.DEFAULT;
 438         }
 439     }
 440
 441     public File getPath(String uncompressedFilename) {
 442         return new File(getDictDir(), uncompressedFilename);
 443     }
 444
 445     String defaultLangISO2 = Locale.getDefault().getLanguage().toLowerCase();
 446     String defaultLangName = null;
 447     final Map<String, String> fileToNameCache = new LinkedHashMap<String, String>();
 448
 449     public String isoCodeToLocalizedLanguageName(final String isoCode) {
 450         final Language.LanguageResources languageResources = isoCodeToResources
 451                 .get(isoCode);
 452         final String lang = languageResources != null ? getApplicationContext().getString(
 453                 languageResources.nameId) : isoCode;
 454         return lang;
 455     }
 456
 457     public List<IndexInfo> sortedIndexInfos(List<IndexInfo> indexInfos) {
 458         // Hack to put the default locale first in the name.
 459         if (indexInfos.size() > 1 &&
 460                 indexInfos.get(1).shortName.toLowerCase().equals(defaultLangISO2)) {
 461             List<IndexInfo> result = new ArrayList<DictionaryInfo.IndexInfo>(indexInfos);
 462             ListUtil.swap(result, 0, 1);
 463             return result;
 464         }
 465         return indexInfos;
 466     }
 467
 468     public synchronized String getDictionaryName(final String uncompressedFilename) {
 469         final String currentLocale = Locale.getDefault().getLanguage().toLowerCase();
 470         if (!currentLocale.equals(defaultLangISO2)) {
 471             defaultLangISO2 = currentLocale;
 472             fileToNameCache.clear();
 473             defaultLangName = null;
 474         }
 475         if (defaultLangName == null) {
 476             defaultLangName = isoCodeToLocalizedLanguageName(defaultLangISO2);
 477         }
 478
 479         String name = fileToNameCache.get(uncompressedFilename);
 480         if (name != null) {
 481             return name;
 482         }
 483
 484         final DictionaryInfo dictionaryInfo = DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO
 485                 .get(uncompressedFilename);
 486         if (dictionaryInfo != null) {
 487             final StringBuilder nameBuilder = new StringBuilder();
 488
 489             List<IndexInfo> sortedIndexInfos = sortedIndexInfos(dictionaryInfo.indexInfos);
 490             for (int i = 0; i < sortedIndexInfos.size(); ++i) {
 491                 if (i > 0) {
 492                     nameBuilder.append("-");
 493                 }
 494                 nameBuilder
 495                         .append(isoCodeToLocalizedLanguageName(sortedIndexInfos.get(i).shortName));
 496             }
 497             name = nameBuilder.toString();
 498         } else {
 499             name = uncompressedFilename.replace(".quickdic", "");
 500         }
 501         fileToNameCache.put(uncompressedFilename, name);
 502         return name;
 503     }
 504
 505     public View createButton(final Context context, final DictionaryInfo dictionaryInfo,
 506             final IndexInfo indexInfo) {
 507         LanguageResources languageResources = isoCodeToResources.get(indexInfo.shortName);
 508         View result;
 509
 510         if (languageResources == null || languageResources.flagId <= 0) {
 511             Button button = new Button(context);
 512             button.setText(indexInfo.shortName);
 513             result = button;
 514         } else {
 515             ImageButton button = new ImageButton(context);
 516             button.setImageResource(languageResources.flagId);
 517             button.setScaleType(ScaleType.FIT_CENTER);
 518             result = button;
 519         }
 520         result.setMinimumWidth(languageButtonPixels);
 521         result.setMinimumHeight(languageButtonPixels * 2 / 3);
 522         // result.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
 523         // LayoutParams.WRAP_CONTENT));
 524         return result;
 525     }
 526
 527     public synchronized void moveDictionaryToTop(final DictionaryInfo dictionaryInfo) {
 528         dictionaryConfig.dictionaryFilesOrdered.remove(dictionaryInfo.uncompressedFilename);
 529         dictionaryConfig.dictionaryFilesOrdered.add(0, dictionaryInfo.uncompressedFilename);
 530         PersistentObjectCache.getInstance().write(C.DICTIONARY_CONFIGS, dictionaryConfig);
 531     }
 532
 533     public synchronized void deleteDictionary(final DictionaryInfo dictionaryInfo) {
 534         while (dictionaryConfig.dictionaryFilesOrdered.remove(dictionaryInfo.uncompressedFilename)) {
 535         }
 536         dictionaryConfig.uncompressedFilenameToDictionaryInfo
 537                 .remove(dictionaryInfo.uncompressedFilename);
 538         getPath(dictionaryInfo.uncompressedFilename).delete();
 539         PersistentObjectCache.getInstance().write(C.DICTIONARY_CONFIGS, dictionaryConfig);
 540     }
 541
 542     final Collator collator = Collator.getInstance();
 543     final Comparator<String> uncompressedFilenameComparator = new Comparator<String>() {
 544         @Override
 545         public int compare(String uncompressedFilename1, String uncompressedFilename2) {
 546             final String name1 = getDictionaryName(uncompressedFilename1);
 547             final String name2 = getDictionaryName(uncompressedFilename2);
 548             if (defaultLangName.length() > 0) {
 549                 if (name1.startsWith(defaultLangName + "-")
 550                         && !name2.startsWith(defaultLangName + "-")) {
 551                     return -1;
 552                 } else if (name2.startsWith(defaultLangName + "-")
 553                         && !name1.startsWith(defaultLangName + "-")) {
 554                     return 1;
 555                 }
 556             }
 557             return collator.compare(name1, name2);
 558         }
 559     };
 560     final Comparator<DictionaryInfo> dictionaryInfoComparator = new Comparator<DictionaryInfo>() {
 561         @Override
 562         public int compare(DictionaryInfo d1, DictionaryInfo d2) {
 563             // Single-index dictionaries first.
 564             if (d1.indexInfos.size() != d2.indexInfos.size()) {
 565                 return d1.indexInfos.size() - d2.indexInfos.size();
 566             }
 567             return uncompressedFilenameComparator.compare(d1.uncompressedFilename,
 568                     d2.uncompressedFilename);
 569         }
 570     };
 571
 572     public void backgroundUpdateDictionaries(final Runnable onUpdateFinished) {
 573         new Thread(new Runnable() {
 574             @Override
 575             public void run() {
 576                 final DictionaryConfig oldDictionaryConfig = new DictionaryConfig();
 577                 synchronized (this) {
 578                     oldDictionaryConfig.dictionaryFilesOrdered
 579                             .addAll(dictionaryConfig.dictionaryFilesOrdered);
 580                 }
 581                 final DictionaryConfig newDictionaryConfig = new DictionaryConfig();
 582                 for (final String uncompressedFilename : oldDictionaryConfig.dictionaryFilesOrdered) {
 583                     final File dictFile = getPath(uncompressedFilename);
 584                     final DictionaryInfo dictionaryInfo = Dictionary.getDictionaryInfo(dictFile);
 585                     if (dictionaryInfo != null) {
 586                         newDictionaryConfig.dictionaryFilesOrdered.add(uncompressedFilename);
 587                         newDictionaryConfig.uncompressedFilenameToDictionaryInfo.put(
 588                                 uncompressedFilename, dictionaryInfo);
 589                     }
 590                 }
 591
 592                 // Are there dictionaries on the device that we didn't know
 593                 // about already?
 594                 // Pick them up and put them at the end of the list.
 595                 final List<String> toAddSorted = new ArrayList<String>();
 596                 final File[] dictDirFiles = getDictDir().listFiles();
 597                 if (dictDirFiles != null) {
 598                     for (final File file : dictDirFiles) {
 599                         if (file.getName().endsWith(".zip")) {
 600                             if (DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO
 601                                     .containsKey(file.getName().replace(".zip", ""))) {
 602                                 file.delete();
 603                             }
 604                         }
 605                         if (!file.getName().endsWith(".quickdic")) {
 606                             continue;
 607                         }
 608                         if (newDictionaryConfig.uncompressedFilenameToDictionaryInfo
 609                                 .containsKey(file.getName())) {
 610                             // We have it in our list already.
 611                             continue;
 612                         }
 613                         final DictionaryInfo dictionaryInfo = Dictionary.getDictionaryInfo(file);
 614                         if (dictionaryInfo == null) {
 615                             Log.e(LOG, "Unable to parse dictionary: " + file.getPath());
 616                             continue;
 617                         }
 618
 619                         toAddSorted.add(file.getName());
 620                         newDictionaryConfig.uncompressedFilenameToDictionaryInfo.put(
 621                                 file.getName(), dictionaryInfo);
 622                     }
 623                 } else {
 624                     Log.w(LOG, "dictDir is not a directory: " + getDictDir().getPath());
 625                 }
 626                 if (!toAddSorted.isEmpty()) {
 627                     Collections.sort(toAddSorted, uncompressedFilenameComparator);
 628                     newDictionaryConfig.dictionaryFilesOrdered.addAll(toAddSorted);
 629                 }
 630
 631                 PersistentObjectCache.getInstance()
 632                         .write(C.DICTIONARY_CONFIGS, newDictionaryConfig);
 633                 synchronized (this) {
 634                     dictionaryConfig = newDictionaryConfig;
 635                 }
 636
 637                 try {
 638                     onUpdateFinished.run();
 639                 } catch (Exception e) {
 640                     Log.e(LOG, "Exception running callback.", e);
 641                 }
 642             }
 643         }).start();
 644     }
 645
 646     public boolean matchesFilters(final DictionaryInfo dictionaryInfo, final String[] filters) {
 647         if (filters == null) {
 648             return true;
 649         }
 650         for (final String filter : filters) {
 651             if (!getDictionaryName(dictionaryInfo.uncompressedFilename).toLowerCase().contains(
 652                     filter)) {
 653                 return false;
 654             }
 655         }
 656         return true;
 657     }
 658
 659     public synchronized List<DictionaryInfo> getDictionariesOnDevice(String[] filters) {
 660         final List<DictionaryInfo> result = new ArrayList<DictionaryInfo>(
 661                 dictionaryConfig.dictionaryFilesOrdered.size());
 662         for (final String uncompressedFilename : dictionaryConfig.dictionaryFilesOrdered) {
 663             final DictionaryInfo dictionaryInfo = dictionaryConfig.uncompressedFilenameToDictionaryInfo
 664                     .get(uncompressedFilename);
 665             if (dictionaryInfo != null && matchesFilters(dictionaryInfo, filters)) {
 666                 result.add(dictionaryInfo);
 667             }
 668         }
 669         return result;
 670     }
 671
 672     public List<DictionaryInfo> getDownloadableDictionaries(String[] filters) {
 673         final List<DictionaryInfo> result = new ArrayList<DictionaryInfo>(
 674                 dictionaryConfig.dictionaryFilesOrdered.size());
 675
 676         final Map<String, DictionaryInfo> remaining = new LinkedHashMap<String, DictionaryInfo>(
 677                 DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO);
 678         remaining.keySet().removeAll(dictionaryConfig.dictionaryFilesOrdered);
 679         for (final DictionaryInfo dictionaryInfo : remaining.values()) {
 680             if (matchesFilters(dictionaryInfo, filters)) {
 681                 result.add(dictionaryInfo);
 682             }
 683         }
 684         Collections.sort(result, dictionaryInfoComparator);
 685         return result;
 686     }
 687
 688     public synchronized boolean isDictionaryOnDevice(String uncompressedFilename) {
 689         return dictionaryConfig.uncompressedFilenameToDictionaryInfo.get(uncompressedFilename) != null;
 690     }
 691
 692     public boolean updateAvailable(final DictionaryInfo dictionaryInfo) {
 693         final DictionaryInfo downloadable =
 694                 DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO.get(
 695                         dictionaryInfo.uncompressedFilename);
 696         return downloadable != null &&
 697                 downloadable.creationMillis > dictionaryInfo.creationMillis;
 698     }
 699
 700     public DictionaryInfo getDownloadable(final String uncompressedFilename) {
 701         final DictionaryInfo downloadable = DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO
 702                 .get(uncompressedFilename);
 703         return downloadable;
 704     }
 705
 706 }