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     // If set to false, avoid use of ICU collator
  65     // Works well enough for most european languages,
  66     // gives faster startup and avoids crashes on some
  67     // devices due to Dalvik bugs (e.g. ARMv6, S5570i, CM11).
  68     // Leave it enabled by default for correctness except
  69     // for my known broken development/performance test device config.
  70     static public final boolean USE_COLLATOR = !android.os.Build.FINGERPRINT.equals("Samsung/cm_tassve/tassve:4.4.4/KTU84Q/20150211:userdebug/release-keys");
  71
  72     // Static, determined by resources (and locale).
  73     // Unordered.
  74     static Map<String, DictionaryInfo> DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO = null;
  75
  76     enum Theme {
  77         DEFAULT(R.style.Theme_Default,
  78                 R.style.Theme_Default_TokenRow_Fg,
  79                 R.color.theme_default_token_row_fg,
  80                 R.drawable.theme_default_token_row_main_bg,
  81                 R.drawable.theme_default_token_row_other_bg,
  82                 R.drawable.theme_default_normal_row_bg),
  83
  84         LIGHT(R.style.Theme_Light,
  85                 R.style.Theme_Light_TokenRow_Fg,
  86                 R.color.theme_light_token_row_fg,
  87                 R.drawable.theme_light_token_row_main_bg,
  88                 R.drawable.theme_light_token_row_other_bg,
  89                 R.drawable.theme_light_normal_row_bg);
  90
  91         Theme(final int themeId, final int tokenRowFg,
  92               final int tokenRowFgColor,
  93               final int tokenRowMainBg, final int tokenRowOtherBg,
  94               final int normalRowBg) {
  95             this.themeId = themeId;
  96             this.tokenRowFg = tokenRowFg;
  97             this.tokenRowFgColor = tokenRowFgColor;
  98             this.tokenRowMainBg = tokenRowMainBg;
  99             this.tokenRowOtherBg = tokenRowOtherBg;
 100             this.normalRowBg = normalRowBg;
 101         }
 102
 103         final int themeId;
 104         final int tokenRowFg;
 105         final int tokenRowFgColor;
 106         final int tokenRowMainBg;
 107         final int tokenRowOtherBg;
 108         final int normalRowBg;
 109     }
 110
 111     // Useful:
 112     // http://www.loc.gov/standards/iso639-2/php/code_list.php
 113     public static final Map<String, LanguageResources> isoCodeToResources = new LinkedHashMap<String, LanguageResources>();
 114     static {
 115         isoCodeToResources.put("AF", new LanguageResources("Afrikaans", R.string.AF,
 116                 R.drawable.flag_of_south_africa));
 117         isoCodeToResources.put("SQ", new LanguageResources("Albanian", R.string.SQ,
 118                 R.drawable.flag_of_albania));
 119         isoCodeToResources.put("AR",
 120                 new LanguageResources("Arabic", R.string.AR, R.drawable.arabic));
 121         isoCodeToResources.put("HY", new LanguageResources("Armenian", R.string.HY,
 122                 R.drawable.flag_of_armenia));
 123         isoCodeToResources.put("BE", new LanguageResources("Belarusian", R.string.BE,
 124                 R.drawable.flag_of_belarus));
 125         isoCodeToResources.put("BN", new LanguageResources("Bengali", R.string.BN));
 126         isoCodeToResources.put("BS", new LanguageResources("Bosnian", R.string.BS,
 127                 R.drawable.flag_of_bosnia_and_herzegovina));
 128         isoCodeToResources.put("BG", new LanguageResources("Bulgarian", R.string.BG,
 129                 R.drawable.flag_of_bulgaria));
 130         isoCodeToResources.put("MY", new LanguageResources("Burmese", R.string.MY,
 131                 R.drawable.flag_of_myanmar));
 132         isoCodeToResources.put("ZH", new LanguageResources("Chinese", R.string.ZH,
 133                 R.drawable.flag_of_the_peoples_republic_of_china));
 134         isoCodeToResources.put("cmn", new LanguageResources("Mandarin", R.string.cmn,
 135                 R.drawable.flag_of_the_peoples_republic_of_china));
 136         isoCodeToResources.put("yue", new LanguageResources("Cantonese", R.string.yue,
 137                 R.drawable.flag_of_hong_kong));
 138         isoCodeToResources.put("CA", new LanguageResources("Catalan", R.string.CA));
 139         isoCodeToResources.put("HR", new LanguageResources("Croatian", R.string.HR,
 140                 R.drawable.flag_of_croatia));
 141         isoCodeToResources.put("CS", new LanguageResources("Czech", R.string.CS,
 142                 R.drawable.flag_of_the_czech_republic));
 143         isoCodeToResources.put("DA", new LanguageResources("Danish", R.string.DA,
 144                 R.drawable.flag_of_denmark));
 145         isoCodeToResources.put("NL", new LanguageResources("Dutch", R.string.NL,
 146                 R.drawable.flag_of_the_netherlands));
 147         isoCodeToResources.put("EN", new LanguageResources("English", R.string.EN,
 148                 R.drawable.flag_of_the_united_kingdom));
 149         isoCodeToResources.put("EO", new LanguageResources("Esperanto", R.string.EO,
 150                 R.drawable.flag_of_esperanto));
 151         isoCodeToResources.put("ET", new LanguageResources("Estonian", R.string.ET,
 152                 R.drawable.flag_of_estonia));
 153         isoCodeToResources.put("FI", new LanguageResources("Finnish", R.string.FI,
 154                 R.drawable.flag_of_finland));
 155         isoCodeToResources.put("FR", new LanguageResources("French", R.string.FR,
 156                 R.drawable.flag_of_france));
 157         isoCodeToResources.put("DE", new LanguageResources("German", R.string.DE,
 158                 R.drawable.flag_of_germany));
 159         isoCodeToResources.put("EL", new LanguageResources("Greek", R.string.EL,
 160                 R.drawable.flag_of_greece));
 161         isoCodeToResources.put("grc", new LanguageResources("Ancient Greek", R.string.grc));
 162         isoCodeToResources.put("haw", new LanguageResources("Hawaiian", R.string.haw,
 163                 R.drawable.flag_of_hawaii));
 164         isoCodeToResources.put("HE", new LanguageResources("Hebrew", R.string.HE,
 165                 R.drawable.flag_of_israel));
 166         isoCodeToResources.put("HI", new LanguageResources("Hindi", R.string.HI, R.drawable.hindi));
 167         isoCodeToResources.put("HU", new LanguageResources("Hungarian", R.string.HU,
 168                 R.drawable.flag_of_hungary));
 169         isoCodeToResources.put("IS", new LanguageResources("Icelandic", R.string.IS,
 170                 R.drawable.flag_of_iceland));
 171         isoCodeToResources.put("ID", new LanguageResources("Indonesian", R.string.ID,
 172                 R.drawable.flag_of_indonesia));
 173         isoCodeToResources.put("GA", new LanguageResources("Irish", R.string.GA,
 174                 R.drawable.flag_of_ireland));
 175         isoCodeToResources.put("GD", new LanguageResources("Scottish Gaelic", R.string.GD,
 176                 R.drawable.flag_of_scotland));
 177         isoCodeToResources.put("GV", new LanguageResources("Manx", R.string.GV,
 178                 R.drawable.flag_of_the_isle_of_man));
 179         isoCodeToResources.put("IT", new LanguageResources("Italian", R.string.IT,
 180                 R.drawable.flag_of_italy));
 181         isoCodeToResources.put("LA", new LanguageResources("Latin", R.string.LA));
 182         isoCodeToResources.put("LV", new LanguageResources("Latvian", R.string.LV,
 183                 R.drawable.flag_of_latvia));
 184         isoCodeToResources.put("LT", new LanguageResources("Lithuanian", R.string.LT,
 185                 R.drawable.flag_of_lithuania));
 186         isoCodeToResources.put("JA", new LanguageResources("Japanese", R.string.JA,
 187                 R.drawable.flag_of_japan));
 188         isoCodeToResources.put("KO", new LanguageResources("Korean", R.string.KO,
 189                 R.drawable.flag_of_south_korea));
 190         isoCodeToResources.put("KU", new LanguageResources("Kurdish", R.string.KU));
 191         isoCodeToResources.put("MS", new LanguageResources("Malay", R.string.MS,
 192                 R.drawable.flag_of_malaysia));
 193         isoCodeToResources.put("MI", new LanguageResources("Maori", R.string.MI,
 194                 R.drawable.flag_of_new_zealand));
 195         isoCodeToResources.put("MN", new LanguageResources("Mongolian", R.string.MN,
 196                 R.drawable.flag_of_mongolia));
 197         isoCodeToResources.put("NE", new LanguageResources("Nepali", R.string.NE,
 198                 R.drawable.flag_of_nepal));
 199         isoCodeToResources.put("NO", new LanguageResources("Norwegian", R.string.NO,
 200                 R.drawable.flag_of_norway));
 201         isoCodeToResources.put("FA", new LanguageResources("Persian", R.string.FA,
 202                 R.drawable.flag_of_iran));
 203         isoCodeToResources.put("PL", new LanguageResources("Polish", R.string.PL,
 204                 R.drawable.flag_of_poland));
 205         isoCodeToResources.put("PT", new LanguageResources("Portuguese", R.string.PT,
 206                 R.drawable.flag_of_portugal));
 207         isoCodeToResources.put("PA", new LanguageResources("Punjabi", R.string.PA));
 208         isoCodeToResources.put("RO", new LanguageResources("Romanian", R.string.RO,
 209                 R.drawable.flag_of_romania));
 210         isoCodeToResources.put("RU", new LanguageResources("Russian", R.string.RU,
 211                 R.drawable.flag_of_russia));
 212         isoCodeToResources.put("SA", new LanguageResources("Sanskrit", R.string.SA));
 213         isoCodeToResources.put("SR", new LanguageResources("Serbian", R.string.SR,
 214                 R.drawable.flag_of_serbia));
 215         isoCodeToResources.put("SK", new LanguageResources("Slovak", R.string.SK,
 216                 R.drawable.flag_of_slovakia));
 217         isoCodeToResources.put("SL", new LanguageResources("Slovenian", R.string.SL,
 218                 R.drawable.flag_of_slovenia));
 219         isoCodeToResources.put("SO", new LanguageResources("Somali", R.string.SO,
 220                 R.drawable.flag_of_somalia));
 221         isoCodeToResources.put("ES", new LanguageResources("Spanish", R.string.ES,
 222                 R.drawable.flag_of_spain));
 223         isoCodeToResources.put("SW", new LanguageResources("Swahili", R.string.SW));
 224         isoCodeToResources.put("SV", new LanguageResources("Swedish", R.string.SV,
 225                 R.drawable.flag_of_sweden));
 226         isoCodeToResources.put("TL", new LanguageResources("Tagalog", R.string.TL));
 227         isoCodeToResources.put("TG", new LanguageResources("Tajik", R.string.TG,
 228                 R.drawable.flag_of_tajikistan));
 229         isoCodeToResources.put("TH", new LanguageResources("Thai", R.string.TH,
 230                 R.drawable.flag_of_thailand));
 231         isoCodeToResources.put("BO", new LanguageResources("Tibetan", R.string.BO));
 232         isoCodeToResources.put("TR", new LanguageResources("Turkish", R.string.TR,
 233                 R.drawable.flag_of_turkey));
 234         isoCodeToResources.put("UK", new LanguageResources("Ukrainian", R.string.UK,
 235                 R.drawable.flag_of_ukraine));
 236         isoCodeToResources.put("UR", new LanguageResources("Urdu", R.string.UR));
 237         isoCodeToResources.put("VI", new LanguageResources("Vietnamese", R.string.VI,
 238                 R.drawable.flag_of_vietnam));
 239         isoCodeToResources.put("CI", new LanguageResources("Welsh", R.string.CI,
 240                 R.drawable.flag_of_wales_2));
 241         isoCodeToResources.put("YI", new LanguageResources("Yiddish", R.string.YI));
 242         isoCodeToResources.put("ZU", new LanguageResources("Zulu", R.string.ZU));
 243         isoCodeToResources.put("AZ", new LanguageResources("Azeri", R.string.AZ,
 244                 R.drawable.flag_of_azerbaijan));
 245         isoCodeToResources.put("EU", new LanguageResources("Basque", R.string.EU,
 246                 R.drawable.flag_of_the_basque_country));
 247         isoCodeToResources.put("BR", new LanguageResources("Breton", R.string.BR));
 248         isoCodeToResources.put("MR", new LanguageResources("Marathi", R.string.MR));
 249         isoCodeToResources.put("FO", new LanguageResources("Faroese", R.string.FO));
 250         isoCodeToResources.put("GL", new LanguageResources("Galician", R.string.GL,
 251                 R.drawable.flag_of_galicia));
 252         isoCodeToResources.put("KA", new LanguageResources("Georgian", R.string.KA,
 253                 R.drawable.flag_of_georgia));
 254         isoCodeToResources.put("HT", new LanguageResources("Haitian Creole", R.string.HT,
 255                 R.drawable.flag_of_haiti));
 256         isoCodeToResources.put("LB", new LanguageResources("Luxembourgish", R.string.LB,
 257                 R.drawable.flag_of_luxembourg));
 258         isoCodeToResources.put("MK", new LanguageResources("Macedonian", R.string.MK,
 259                 R.drawable.flag_of_macedonia));
 260         isoCodeToResources.put("LO", new LanguageResources("Lao", R.string.LO,
 261                 R.drawable.flag_of_laos));
 262         isoCodeToResources.put("ML", new LanguageResources("Malayalam", R.string.ML));
 263         isoCodeToResources.put("SL", new LanguageResources("Slovenian", R.string.SL,
 264                 R.drawable.flag_of_slovenia));
 265         isoCodeToResources.put("TA", new LanguageResources("Tamil", R.string.TA));
 266         isoCodeToResources.put("SH", new LanguageResources("Serbo-Croatian", R.string.SH));
 267         isoCodeToResources.put("SD", new LanguageResources("Sindhi", R.string.SD));
 268
 269         // Hack to allow lower-case ISO codes to work:
 270         for (final String isoCode : new ArrayList<String>(isoCodeToResources.keySet())) {
 271             isoCodeToResources.put(isoCode.toLowerCase(), isoCodeToResources.get(isoCode));
 272         }
 273
 274     }
 275
 276     static final class DictionaryConfig implements Serializable {
 277         private static final long serialVersionUID = -1444177164708201263L;
 278         // User-ordered list, persisted, just the ones that are/have been
 279         // present.
 280         final List<String> dictionaryFilesOrdered = new ArrayList<String>();
 281
 282         final Map<String, DictionaryInfo> uncompressedFilenameToDictionaryInfo = new LinkedHashMap<String, DictionaryInfo>();
 283
 284         /**
 285          * Sometimes a deserialized version of this data structure isn't valid.
 286          * @return
 287          */
 288         boolean isValid() {
 289             return uncompressedFilenameToDictionaryInfo != null && dictionaryFilesOrdered != null;
 290         }
 291     }
 292
 293     DictionaryConfig dictionaryConfig = null;
 294
 295     int languageButtonPixels = -1;
 296
 297     static synchronized void staticInit(final Context context) {
 298         if (DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO != null) {
 299             return;
 300         }
 301         DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO = new LinkedHashMap<String, DictionaryInfo>();
 302         final BufferedReader reader = new BufferedReader(
 303                 new InputStreamReader(context.getResources().openRawResource(R.raw.dictionary_info)));
 304         try {
 305             String line;
 306             while ((line = reader.readLine()) != null) {
 307                 if (line.startsWith("#") || line.length() == 0) {
 308                     continue;
 309                 }
 310                 final DictionaryInfo dictionaryInfo = new DictionaryInfo(line);
 311                 DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO.put(
 312                         dictionaryInfo.uncompressedFilename, dictionaryInfo);
 313             }
 314             reader.close();
 315         } catch (IOException e) {
 316             Log.e(LOG, "Failed to load downloadable dictionary lists.", e);
 317         }
 318     }
 319
 320     private File dictDir;
 321
 322     @Override
 323     public void onCreate() {
 324         super.onCreate();
 325         Log.d("QuickDic", "Application: onCreate");
 326         TransliteratorManager.init(null);
 327         staticInit(getApplicationContext());
 328
 329         languageButtonPixels = (int) TypedValue.applyDimension(
 330                 TypedValue.COMPLEX_UNIT_DIP, 60, getResources().getDisplayMetrics());
 331
 332         // Load the dictionaries we know about.
 333         dictionaryConfig = PersistentObjectCache.init(getApplicationContext()).read(
 334                 C.DICTIONARY_CONFIGS, DictionaryConfig.class);
 335         if (dictionaryConfig == null) {
 336             dictionaryConfig = new DictionaryConfig();
 337         }
 338         if (!dictionaryConfig.isValid()) {
 339             dictionaryConfig = new DictionaryConfig();
 340         }
 341
 342         // Theme stuff.
 343         setTheme(getSelectedTheme().themeId);
 344         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 345         prefs.registerOnSharedPreferenceChangeListener(new OnSharedPreferenceChangeListener() {
 346             @Override
 347             public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
 348                     String key) {
 349                 Log.d("QuickDic", "prefs changed: " + key);
 350                 if (key.equals(getString(R.string.themeKey))) {
 351                     setTheme(getSelectedTheme().themeId);
 352                 }
 353             }
 354         });
 355     }
 356
 357     public void onCreateGlobalOptionsMenu(
 358             final Context context, final Menu menu) {
 359         final MenuItem about = menu.add(getString(R.string.about));
 360         MenuItemCompat.setShowAsAction(about, MenuItem.SHOW_AS_ACTION_NEVER);
 361         about.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 362             public boolean onMenuItemClick(final MenuItem menuItem) {
 363                 final Intent intent = new Intent(getApplicationContext(), AboutActivity.class);
 364                 context.startActivity(intent);
 365                 return false;
 366             }
 367         });
 368
 369         final MenuItem help = menu.add(getString(R.string.help));
 370         MenuItemCompat.setShowAsAction(help, MenuItem.SHOW_AS_ACTION_NEVER);
 371         help.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 372             public boolean onMenuItemClick(final MenuItem menuItem) {
 373                 context.startActivity(HtmlDisplayActivity.getHelpLaunchIntent(getApplicationContext()));
 374                 return false;
 375             }
 376         });
 377
 378         final MenuItem preferences = menu.add(getString(R.string.settings));
 379         MenuItemCompat.setShowAsAction(preferences, MenuItem.SHOW_AS_ACTION_NEVER);
 380         preferences.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 381             public boolean onMenuItemClick(final MenuItem menuItem) {
 382                 PreferenceActivity.prefsMightHaveChanged = true;
 383                 final Intent intent = new Intent(getApplicationContext(), PreferenceActivity.class);
 384                 context.startActivity(intent);
 385                 return false;
 386             }
 387         });
 388
 389         final MenuItem reportIssue = menu.add(getString(R.string.reportIssue));
 390         MenuItemCompat.setShowAsAction(reportIssue, MenuItem.SHOW_AS_ACTION_NEVER);
 391         reportIssue.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 392             public boolean onMenuItemClick(final MenuItem menuItem) {
 393                 final Intent intent = new Intent(Intent.ACTION_VIEW);
 394                 intent.setData(Uri
 395                         .parse("http://github.com/rdoeffinger/Dictionary/issues"));
 396                 context.startActivity(intent);
 397                 return false;
 398             }
 399         });
 400     }
 401
 402     public synchronized File getDictDir() {
 403         // This metaphor doesn't work, because we've already reset
 404         // prefsMightHaveChanged.
 405         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 406         String dir = prefs.getString(getString(R.string.quickdicDirectoryKey), "");
 407         if (dir.isEmpty()) {
 408             final File defaultDictDir = new File(Environment.getExternalStorageDirectory(), "quickDic");
 409             dir = defaultDictDir.getAbsolutePath();
 410         }
 411         dictDir = new File(dir);
 412         dictDir.mkdirs();
 413         if (!dictDir.isDirectory() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
 414              getApplicationContext().getExternalFilesDirs(null);
 415         }
 416         return dictDir;
 417     }
 418
 419     static public boolean checkFileCreate(File dir) {
 420         boolean res = false;
 421         File testfile = new File(dir, "quickdic_writetest");
 422         try {
 423             testfile.delete();
 424             res = testfile.createNewFile() & testfile.delete();
 425         } catch (Exception e) {
 426         }
 427         return res;
 428     }
 429
 430     public File getWordListFile() {
 431         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 432         String file = prefs.getString(getString(R.string.wordListFileKey), "");
 433         if (file.isEmpty()) {
 434             return new File(getDictDir(), "wordList.txt");
 435         }
 436         return new File(file);
 437     }
 438
 439     public Theme getSelectedTheme() {
 440         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 441         final String theme = prefs.getString(getString(R.string.themeKey), "themeLight");
 442         if (theme.equals("themeLight")) {
 443             return Theme.LIGHT;
 444         } else {
 445             return Theme.DEFAULT;
 446         }
 447     }
 448
 449     public File getPath(String uncompressedFilename) {
 450         return new File(getDictDir(), uncompressedFilename);
 451     }
 452
 453     String defaultLangISO2 = Locale.getDefault().getLanguage().toLowerCase();
 454     String defaultLangName = null;
 455     final Map<String, String> fileToNameCache = new LinkedHashMap<String, String>();
 456
 457     public String isoCodeToLocalizedLanguageName(final String isoCode) {
 458         final Language.LanguageResources languageResources = isoCodeToResources
 459                 .get(isoCode);
 460         final String lang = languageResources != null ? getApplicationContext().getString(
 461                 languageResources.nameId) : isoCode;
 462         return lang;
 463     }
 464
 465     public List<IndexInfo> sortedIndexInfos(List<IndexInfo> indexInfos) {
 466         // Hack to put the default locale first in the name.
 467         if (indexInfos.size() > 1 &&
 468                 indexInfos.get(1).shortName.toLowerCase().equals(defaultLangISO2)) {
 469             List<IndexInfo> result = new ArrayList<DictionaryInfo.IndexInfo>(indexInfos);
 470             ListUtil.swap(result, 0, 1);
 471             return result;
 472         }
 473         return indexInfos;
 474     }
 475
 476     public synchronized String getDictionaryName(final String uncompressedFilename) {
 477         final String currentLocale = Locale.getDefault().getLanguage().toLowerCase();
 478         if (!currentLocale.equals(defaultLangISO2)) {
 479             defaultLangISO2 = currentLocale;
 480             fileToNameCache.clear();
 481             defaultLangName = null;
 482         }
 483         if (defaultLangName == null) {
 484             defaultLangName = isoCodeToLocalizedLanguageName(defaultLangISO2);
 485         }
 486
 487         String name = fileToNameCache.get(uncompressedFilename);
 488         if (name != null) {
 489             return name;
 490         }
 491
 492         final DictionaryInfo dictionaryInfo = DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO
 493                 .get(uncompressedFilename);
 494         if (dictionaryInfo != null) {
 495             final StringBuilder nameBuilder = new StringBuilder();
 496
 497             List<IndexInfo> sortedIndexInfos = sortedIndexInfos(dictionaryInfo.indexInfos);
 498             for (int i = 0; i < sortedIndexInfos.size(); ++i) {
 499                 if (i > 0) {
 500                     nameBuilder.append("-");
 501                 }
 502                 nameBuilder
 503                         .append(isoCodeToLocalizedLanguageName(sortedIndexInfos.get(i).shortName));
 504             }
 505             name = nameBuilder.toString();
 506         } else {
 507             name = uncompressedFilename.replace(".quickdic", "");
 508         }
 509         fileToNameCache.put(uncompressedFilename, name);
 510         return name;
 511     }
 512
 513     public View createButton(final Context context, final DictionaryInfo dictionaryInfo,
 514             final IndexInfo indexInfo) {
 515         LanguageResources languageResources = isoCodeToResources.get(indexInfo.shortName);
 516         View result;
 517
 518         if (languageResources == null || languageResources.flagId <= 0) {
 519             Button button = new Button(context);
 520             button.setText(indexInfo.shortName);
 521             result = button;
 522         } else {
 523             ImageButton button = new ImageButton(context);
 524             button.setImageResource(languageResources.flagId);
 525             button.setScaleType(ScaleType.FIT_CENTER);
 526             result = button;
 527         }
 528         result.setMinimumWidth(languageButtonPixels);
 529         result.setMinimumHeight(languageButtonPixels * 2 / 3);
 530         // result.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
 531         // LayoutParams.WRAP_CONTENT));
 532         return result;
 533     }
 534
 535     public synchronized void moveDictionaryToTop(final DictionaryInfo dictionaryInfo) {
 536         dictionaryConfig.dictionaryFilesOrdered.remove(dictionaryInfo.uncompressedFilename);
 537         dictionaryConfig.dictionaryFilesOrdered.add(0, dictionaryInfo.uncompressedFilename);
 538         PersistentObjectCache.getInstance().write(C.DICTIONARY_CONFIGS, dictionaryConfig);
 539     }
 540
 541     public synchronized void deleteDictionary(final DictionaryInfo dictionaryInfo) {
 542         while (dictionaryConfig.dictionaryFilesOrdered.remove(dictionaryInfo.uncompressedFilename)) {
 543         }
 544         dictionaryConfig.uncompressedFilenameToDictionaryInfo
 545                 .remove(dictionaryInfo.uncompressedFilename);
 546         getPath(dictionaryInfo.uncompressedFilename).delete();
 547         PersistentObjectCache.getInstance().write(C.DICTIONARY_CONFIGS, dictionaryConfig);
 548     }
 549
 550     final Comparator collator = USE_COLLATOR ? Collator.getInstance() : String.CASE_INSENSITIVE_ORDER;
 551     final Comparator<String> uncompressedFilenameComparator = new Comparator<String>() {
 552         @Override
 553         public int compare(String uncompressedFilename1, String uncompressedFilename2) {
 554             final String name1 = getDictionaryName(uncompressedFilename1);
 555             final String name2 = getDictionaryName(uncompressedFilename2);
 556             if (defaultLangName.length() > 0) {
 557                 if (name1.startsWith(defaultLangName + "-")
 558                         && !name2.startsWith(defaultLangName + "-")) {
 559                     return -1;
 560                 } else if (name2.startsWith(defaultLangName + "-")
 561                         && !name1.startsWith(defaultLangName + "-")) {
 562                     return 1;
 563                 }
 564             }
 565             return collator.compare(name1, name2);
 566         }
 567     };
 568     final Comparator<DictionaryInfo> dictionaryInfoComparator = new Comparator<DictionaryInfo>() {
 569         @Override
 570         public int compare(DictionaryInfo d1, DictionaryInfo d2) {
 571             // Single-index dictionaries first.
 572             if (d1.indexInfos.size() != d2.indexInfos.size()) {
 573                 return d1.indexInfos.size() - d2.indexInfos.size();
 574             }
 575             return uncompressedFilenameComparator.compare(d1.uncompressedFilename,
 576                     d2.uncompressedFilename);
 577         }
 578     };
 579
 580     public void backgroundUpdateDictionaries(final Runnable onUpdateFinished) {
 581         new Thread(new Runnable() {
 582             @Override
 583             public void run() {
 584                 final DictionaryConfig oldDictionaryConfig = new DictionaryConfig();
 585                 synchronized (this) {
 586                     oldDictionaryConfig.dictionaryFilesOrdered
 587                             .addAll(dictionaryConfig.dictionaryFilesOrdered);
 588                 }
 589                 final DictionaryConfig newDictionaryConfig = new DictionaryConfig();
 590                 for (final String uncompressedFilename : oldDictionaryConfig.dictionaryFilesOrdered) {
 591                     final File dictFile = getPath(uncompressedFilename);
 592                     final DictionaryInfo dictionaryInfo = Dictionary.getDictionaryInfo(dictFile);
 593                     if (dictionaryInfo != null) {
 594                         newDictionaryConfig.dictionaryFilesOrdered.add(uncompressedFilename);
 595                         newDictionaryConfig.uncompressedFilenameToDictionaryInfo.put(
 596                                 uncompressedFilename, dictionaryInfo);
 597                     }
 598                 }
 599
 600                 // Are there dictionaries on the device that we didn't know
 601                 // about already?
 602                 // Pick them up and put them at the end of the list.
 603                 final List<String> toAddSorted = new ArrayList<String>();
 604                 final File[] dictDirFiles = getDictDir().listFiles();
 605                 if (dictDirFiles != null) {
 606                     for (final File file : dictDirFiles) {
 607                         if (file.getName().endsWith(".zip")) {
 608                             if (DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO
 609                                     .containsKey(file.getName().replace(".zip", ""))) {
 610                                 file.delete();
 611                             }
 612                         }
 613                         if (!file.getName().endsWith(".quickdic")) {
 614                             continue;
 615                         }
 616                         if (newDictionaryConfig.uncompressedFilenameToDictionaryInfo
 617                                 .containsKey(file.getName())) {
 618                             // We have it in our list already.
 619                             continue;
 620                         }
 621                         final DictionaryInfo dictionaryInfo = Dictionary.getDictionaryInfo(file);
 622                         if (dictionaryInfo == null) {
 623                             Log.e(LOG, "Unable to parse dictionary: " + file.getPath());
 624                             continue;
 625                         }
 626
 627                         toAddSorted.add(file.getName());
 628                         newDictionaryConfig.uncompressedFilenameToDictionaryInfo.put(
 629                                 file.getName(), dictionaryInfo);
 630                     }
 631                 } else {
 632                     Log.w(LOG, "dictDir is not a directory: " + getDictDir().getPath());
 633                 }
 634                 if (!toAddSorted.isEmpty()) {
 635                     Collections.sort(toAddSorted, uncompressedFilenameComparator);
 636                     newDictionaryConfig.dictionaryFilesOrdered.addAll(toAddSorted);
 637                 }
 638
 639                 PersistentObjectCache.getInstance()
 640                         .write(C.DICTIONARY_CONFIGS, newDictionaryConfig);
 641                 synchronized (this) {
 642                     dictionaryConfig = newDictionaryConfig;
 643                 }
 644
 645                 try {
 646                     onUpdateFinished.run();
 647                 } catch (Exception e) {
 648                     Log.e(LOG, "Exception running callback.", e);
 649                 }
 650             }
 651         }).start();
 652     }
 653
 654     public boolean matchesFilters(final DictionaryInfo dictionaryInfo, final String[] filters) {
 655         if (filters == null) {
 656             return true;
 657         }
 658         for (final String filter : filters) {
 659             if (!getDictionaryName(dictionaryInfo.uncompressedFilename).toLowerCase().contains(
 660                     filter)) {
 661                 return false;
 662             }
 663         }
 664         return true;
 665     }
 666
 667     public synchronized List<DictionaryInfo> getDictionariesOnDevice(String[] filters) {
 668         final List<DictionaryInfo> result = new ArrayList<DictionaryInfo>(
 669                 dictionaryConfig.dictionaryFilesOrdered.size());
 670         for (final String uncompressedFilename : dictionaryConfig.dictionaryFilesOrdered) {
 671             final DictionaryInfo dictionaryInfo = dictionaryConfig.uncompressedFilenameToDictionaryInfo
 672                     .get(uncompressedFilename);
 673             if (dictionaryInfo != null && matchesFilters(dictionaryInfo, filters)) {
 674                 result.add(dictionaryInfo);
 675             }
 676         }
 677         return result;
 678     }
 679
 680     public List<DictionaryInfo> getDownloadableDictionaries(String[] filters) {
 681         final List<DictionaryInfo> result = new ArrayList<DictionaryInfo>(
 682                 dictionaryConfig.dictionaryFilesOrdered.size());
 683
 684         final Map<String, DictionaryInfo> remaining = new LinkedHashMap<String, DictionaryInfo>(
 685                 DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO);
 686         remaining.keySet().removeAll(dictionaryConfig.dictionaryFilesOrdered);
 687         for (final DictionaryInfo dictionaryInfo : remaining.values()) {
 688             if (matchesFilters(dictionaryInfo, filters)) {
 689                 result.add(dictionaryInfo);
 690             }
 691         }
 692         Collections.sort(result, dictionaryInfoComparator);
 693         return result;
 694     }
 695
 696     public synchronized boolean isDictionaryOnDevice(String uncompressedFilename) {
 697         return dictionaryConfig.uncompressedFilenameToDictionaryInfo.get(uncompressedFilename) != null;
 698     }
 699
 700     public boolean updateAvailable(final DictionaryInfo dictionaryInfo) {
 701         final DictionaryInfo downloadable =
 702                 DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO.get(
 703                         dictionaryInfo.uncompressedFilename);
 704         return downloadable != null &&
 705                 downloadable.creationMillis > dictionaryInfo.creationMillis;
 706     }
 707
 708     public DictionaryInfo getDownloadable(final String uncompressedFilename) {
 709         final DictionaryInfo downloadable = DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO
 710                 .get(uncompressedFilename);
 711         return downloadable;
 712     }
 713
 714 }