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.LinearLayout;
  37 import android.widget.Toast;
  38
  39 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  40 import com.hughes.android.dictionary.engine.Dictionary;
  41 import com.hughes.android.dictionary.engine.Language;
  42 import com.hughes.android.dictionary.engine.Language.LanguageResources;
  43 import com.hughes.android.dictionary.engine.TransliteratorManager;
  44 import com.hughes.android.util.PersistentObjectCache;
  45 import com.hughes.util.ListUtil;
  46 import java.text.Collator;
  47
  48 import java.io.BufferedReader;
  49 import java.io.File;
  50 import java.io.IOException;
  51 import java.io.InputStreamReader;
  52 import java.io.Serializable;
  53 import java.util.ArrayList;
  54 import java.util.Collections;
  55 import java.util.Comparator;
  56 import java.util.LinkedHashMap;
  57 import java.util.List;
  58 import java.util.Locale;
  59 import java.util.Map;
  60
  61 public class DictionaryApplication extends Application {
  62
  63     static final String LOG = "QuickDicApp";
  64
  65     // If set to false, avoid use of ICU collator
  66     // Works well enough for most european languages,
  67     // gives faster startup and avoids crashes on some
  68     // devices due to Dalvik bugs (e.g. ARMv6, S5570i, CM11)
  69     // when using ICU4J.
  70     // Leave it enabled by default for correctness except
  71     // for my known broken development/performance test device config.
  72     //static public final boolean USE_COLLATOR = !android.os.Build.FINGERPRINT.equals("Samsung/cm_tassve/tassve:4.4.4/KTU84Q/20150211:userdebug/release-keys");
  73     static public final boolean USE_COLLATOR = true;
  74
  75     // Static, determined by resources (and locale).
  76     // Unordered.
  77     static Map<String, DictionaryInfo> DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO = null;
  78
  79     enum Theme {
  80         DEFAULT(R.style.Theme_Default,
  81                 R.style.Theme_Default_TokenRow_Fg,
  82                 R.color.theme_default_token_row_fg,
  83                 R.drawable.theme_default_token_row_main_bg,
  84                 R.drawable.theme_default_token_row_other_bg,
  85                 R.drawable.theme_default_normal_row_bg),
  86
  87         LIGHT(R.style.Theme_Light,
  88                 R.style.Theme_Light_TokenRow_Fg,
  89                 R.color.theme_light_token_row_fg,
  90                 R.drawable.theme_light_token_row_main_bg,
  91                 R.drawable.theme_light_token_row_other_bg,
  92                 R.drawable.theme_light_normal_row_bg);
  93
  94         Theme(final int themeId, final int tokenRowFg,
  95               final int tokenRowFgColor,
  96               final int tokenRowMainBg, final int tokenRowOtherBg,
  97               final int normalRowBg) {
  98             this.themeId = themeId;
  99             this.tokenRowFg = tokenRowFg;
 100             this.tokenRowFgColor = tokenRowFgColor;
 101             this.tokenRowMainBg = tokenRowMainBg;
 102             this.tokenRowOtherBg = tokenRowOtherBg;
 103             this.normalRowBg = normalRowBg;
 104         }
 105
 106         final int themeId;
 107         final int tokenRowFg;
 108         final int tokenRowFgColor;
 109         final int tokenRowMainBg;
 110         final int tokenRowOtherBg;
 111         final int normalRowBg;
 112     }
 113
 114     // Useful:
 115     // http://www.loc.gov/standards/iso639-2/php/code_list.php
 116     public static final Map<String, LanguageResources> isoCodeToResources = new LinkedHashMap<String, LanguageResources>();
 117     static {
 118         isoCodeToResources.put("AF", new LanguageResources("Afrikaans", R.string.AF,
 119                 R.drawable.flag_of_south_africa));
 120         isoCodeToResources.put("SQ", new LanguageResources("Albanian", R.string.SQ,
 121                 R.drawable.flag_of_albania));
 122         isoCodeToResources.put("AR",
 123                 new LanguageResources("Arabic", R.string.AR, R.drawable.arabic));
 124         isoCodeToResources.put("HY", new LanguageResources("Armenian", R.string.HY,
 125                 R.drawable.flag_of_armenia));
 126         isoCodeToResources.put("BE", new LanguageResources("Belarusian", R.string.BE,
 127                 R.drawable.flag_of_belarus));
 128         isoCodeToResources.put("BN", new LanguageResources("Bengali", R.string.BN));
 129         isoCodeToResources.put("BS", new LanguageResources("Bosnian", R.string.BS,
 130                 R.drawable.flag_of_bosnia_and_herzegovina));
 131         isoCodeToResources.put("BG", new LanguageResources("Bulgarian", R.string.BG,
 132                 R.drawable.flag_of_bulgaria));
 133         isoCodeToResources.put("MY", new LanguageResources("Burmese", R.string.MY,
 134                 R.drawable.flag_of_myanmar));
 135         isoCodeToResources.put("ZH", new LanguageResources("Chinese", R.string.ZH,
 136                 R.drawable.flag_of_the_peoples_republic_of_china));
 137         isoCodeToResources.put("cmn", new LanguageResources("Mandarin", R.string.cmn,
 138                 R.drawable.flag_of_the_peoples_republic_of_china));
 139         isoCodeToResources.put("yue", new LanguageResources("Cantonese", R.string.yue,
 140                 R.drawable.flag_of_hong_kong));
 141         isoCodeToResources.put("CA", new LanguageResources("Catalan", R.string.CA));
 142         isoCodeToResources.put("HR", new LanguageResources("Croatian", R.string.HR,
 143                 R.drawable.flag_of_croatia));
 144         isoCodeToResources.put("CS", new LanguageResources("Czech", R.string.CS,
 145                 R.drawable.flag_of_the_czech_republic));
 146         isoCodeToResources.put("DA", new LanguageResources("Danish", R.string.DA,
 147                 R.drawable.flag_of_denmark));
 148         isoCodeToResources.put("NL", new LanguageResources("Dutch", R.string.NL,
 149                 R.drawable.flag_of_the_netherlands));
 150         isoCodeToResources.put("EN", new LanguageResources("English", R.string.EN,
 151                 R.drawable.flag_of_the_united_kingdom));
 152         isoCodeToResources.put("EO", new LanguageResources("Esperanto", R.string.EO,
 153                 R.drawable.flag_of_esperanto));
 154         isoCodeToResources.put("ET", new LanguageResources("Estonian", R.string.ET,
 155                 R.drawable.flag_of_estonia));
 156         isoCodeToResources.put("FI", new LanguageResources("Finnish", R.string.FI,
 157                 R.drawable.flag_of_finland));
 158         isoCodeToResources.put("FR", new LanguageResources("French", R.string.FR,
 159                 R.drawable.flag_of_france));
 160         isoCodeToResources.put("DE", new LanguageResources("German", R.string.DE,
 161                 R.drawable.flag_of_germany));
 162         isoCodeToResources.put("EL", new LanguageResources("Greek", R.string.EL,
 163                 R.drawable.flag_of_greece));
 164         isoCodeToResources.put("grc", new LanguageResources("Ancient Greek", R.string.grc));
 165         isoCodeToResources.put("haw", new LanguageResources("Hawaiian", R.string.haw,
 166                 R.drawable.flag_of_hawaii));
 167         isoCodeToResources.put("HE", new LanguageResources("Hebrew", R.string.HE,
 168                 R.drawable.flag_of_israel));
 169         isoCodeToResources.put("HI", new LanguageResources("Hindi", R.string.HI, R.drawable.hindi));
 170         isoCodeToResources.put("HU", new LanguageResources("Hungarian", R.string.HU,
 171                 R.drawable.flag_of_hungary));
 172         isoCodeToResources.put("IS", new LanguageResources("Icelandic", R.string.IS,
 173                 R.drawable.flag_of_iceland));
 174         isoCodeToResources.put("ID", new LanguageResources("Indonesian", R.string.ID,
 175                 R.drawable.flag_of_indonesia));
 176         isoCodeToResources.put("GA", new LanguageResources("Irish", R.string.GA,
 177                 R.drawable.flag_of_ireland));
 178         isoCodeToResources.put("GD", new LanguageResources("Scottish Gaelic", R.string.GD,
 179                 R.drawable.flag_of_scotland));
 180         isoCodeToResources.put("GV", new LanguageResources("Manx", R.string.GV,
 181                 R.drawable.flag_of_the_isle_of_man));
 182         isoCodeToResources.put("IT", new LanguageResources("Italian", R.string.IT,
 183                 R.drawable.flag_of_italy));
 184         isoCodeToResources.put("LA", new LanguageResources("Latin", R.string.LA));
 185         isoCodeToResources.put("LV", new LanguageResources("Latvian", R.string.LV,
 186                 R.drawable.flag_of_latvia));
 187         isoCodeToResources.put("LT", new LanguageResources("Lithuanian", R.string.LT,
 188                 R.drawable.flag_of_lithuania));
 189         isoCodeToResources.put("JA", new LanguageResources("Japanese", R.string.JA,
 190                 R.drawable.flag_of_japan));
 191         isoCodeToResources.put("KO", new LanguageResources("Korean", R.string.KO,
 192                 R.drawable.flag_of_south_korea));
 193         isoCodeToResources.put("KU", new LanguageResources("Kurdish", R.string.KU));
 194         isoCodeToResources.put("MS", new LanguageResources("Malay", R.string.MS,
 195                 R.drawable.flag_of_malaysia));
 196         isoCodeToResources.put("MI", new LanguageResources("Maori", R.string.MI,
 197                 R.drawable.flag_of_new_zealand));
 198         isoCodeToResources.put("MN", new LanguageResources("Mongolian", R.string.MN,
 199                 R.drawable.flag_of_mongolia));
 200         isoCodeToResources.put("NE", new LanguageResources("Nepali", R.string.NE,
 201                 R.drawable.flag_of_nepal));
 202         isoCodeToResources.put("NO", new LanguageResources("Norwegian", R.string.NO,
 203                 R.drawable.flag_of_norway));
 204         isoCodeToResources.put("FA", new LanguageResources("Persian", R.string.FA,
 205                 R.drawable.flag_of_iran));
 206         isoCodeToResources.put("PL", new LanguageResources("Polish", R.string.PL,
 207                 R.drawable.flag_of_poland));
 208         isoCodeToResources.put("PT", new LanguageResources("Portuguese", R.string.PT,
 209                 R.drawable.flag_of_portugal));
 210         isoCodeToResources.put("PA", new LanguageResources("Punjabi", R.string.PA));
 211         isoCodeToResources.put("RO", new LanguageResources("Romanian", R.string.RO,
 212                 R.drawable.flag_of_romania));
 213         isoCodeToResources.put("RU", new LanguageResources("Russian", R.string.RU,
 214                 R.drawable.flag_of_russia));
 215         isoCodeToResources.put("SA", new LanguageResources("Sanskrit", R.string.SA));
 216         isoCodeToResources.put("SR", new LanguageResources("Serbian", R.string.SR,
 217                 R.drawable.flag_of_serbia));
 218         isoCodeToResources.put("SK", new LanguageResources("Slovak", R.string.SK,
 219                 R.drawable.flag_of_slovakia));
 220         isoCodeToResources.put("SL", new LanguageResources("Slovenian", R.string.SL,
 221                 R.drawable.flag_of_slovenia));
 222         isoCodeToResources.put("SO", new LanguageResources("Somali", R.string.SO,
 223                 R.drawable.flag_of_somalia));
 224         isoCodeToResources.put("ES", new LanguageResources("Spanish", R.string.ES,
 225                 R.drawable.flag_of_spain));
 226         isoCodeToResources.put("SW", new LanguageResources("Swahili", R.string.SW));
 227         isoCodeToResources.put("SV", new LanguageResources("Swedish", R.string.SV,
 228                 R.drawable.flag_of_sweden));
 229         isoCodeToResources.put("TL", new LanguageResources("Tagalog", R.string.TL));
 230         isoCodeToResources.put("TG", new LanguageResources("Tajik", R.string.TG,
 231                 R.drawable.flag_of_tajikistan));
 232         isoCodeToResources.put("TH", new LanguageResources("Thai", R.string.TH,
 233                 R.drawable.flag_of_thailand));
 234         isoCodeToResources.put("BO", new LanguageResources("Tibetan", R.string.BO));
 235         isoCodeToResources.put("TR", new LanguageResources("Turkish", R.string.TR,
 236                 R.drawable.flag_of_turkey));
 237         isoCodeToResources.put("UK", new LanguageResources("Ukrainian", R.string.UK,
 238                 R.drawable.flag_of_ukraine));
 239         isoCodeToResources.put("UR", new LanguageResources("Urdu", R.string.UR));
 240         isoCodeToResources.put("VI", new LanguageResources("Vietnamese", R.string.VI,
 241                 R.drawable.flag_of_vietnam));
 242         isoCodeToResources.put("CI", new LanguageResources("Welsh", R.string.CI,
 243                 R.drawable.flag_of_wales_2));
 244         isoCodeToResources.put("YI", new LanguageResources("Yiddish", R.string.YI));
 245         isoCodeToResources.put("ZU", new LanguageResources("Zulu", R.string.ZU));
 246         isoCodeToResources.put("AZ", new LanguageResources("Azeri", R.string.AZ,
 247                 R.drawable.flag_of_azerbaijan));
 248         isoCodeToResources.put("EU", new LanguageResources("Basque", R.string.EU,
 249                 R.drawable.flag_of_the_basque_country));
 250         isoCodeToResources.put("BR", new LanguageResources("Breton", R.string.BR));
 251         isoCodeToResources.put("MR", new LanguageResources("Marathi", R.string.MR));
 252         isoCodeToResources.put("FO", new LanguageResources("Faroese", R.string.FO));
 253         isoCodeToResources.put("GL", new LanguageResources("Galician", R.string.GL,
 254                 R.drawable.flag_of_galicia));
 255         isoCodeToResources.put("KA", new LanguageResources("Georgian", R.string.KA,
 256                 R.drawable.flag_of_georgia));
 257         isoCodeToResources.put("HT", new LanguageResources("Haitian Creole", R.string.HT,
 258                 R.drawable.flag_of_haiti));
 259         isoCodeToResources.put("LB", new LanguageResources("Luxembourgish", R.string.LB,
 260                 R.drawable.flag_of_luxembourg));
 261         isoCodeToResources.put("MK", new LanguageResources("Macedonian", R.string.MK,
 262                 R.drawable.flag_of_macedonia));
 263         isoCodeToResources.put("LO", new LanguageResources("Lao", R.string.LO,
 264                 R.drawable.flag_of_laos));
 265         isoCodeToResources.put("ML", new LanguageResources("Malayalam", R.string.ML));
 266         isoCodeToResources.put("SL", new LanguageResources("Slovenian", R.string.SL,
 267                 R.drawable.flag_of_slovenia));
 268         isoCodeToResources.put("TA", new LanguageResources("Tamil", R.string.TA));
 269         isoCodeToResources.put("SH", new LanguageResources("Serbo-Croatian", R.string.SH));
 270         isoCodeToResources.put("SD", new LanguageResources("Sindhi", R.string.SD));
 271
 272         // Hack to allow lower-case ISO codes to work:
 273         for (final String isoCode : new ArrayList<String>(isoCodeToResources.keySet())) {
 274             isoCodeToResources.put(isoCode.toLowerCase(), isoCodeToResources.get(isoCode));
 275         }
 276
 277     }
 278
 279     public static final class DictionaryConfig implements Serializable {
 280         private static final long serialVersionUID = -1444177164708201263L;
 281         // User-ordered list, persisted, just the ones that are/have been
 282         // present.
 283         final List<String> dictionaryFilesOrdered = new ArrayList<String>();
 284
 285         final Map<String, DictionaryInfo> uncompressedFilenameToDictionaryInfo = new LinkedHashMap<String, DictionaryInfo>();
 286
 287         /**
 288          * Sometimes a deserialized version of this data structure isn't valid.
 289          * @return
 290          */
 291         boolean isValid() {
 292             return uncompressedFilenameToDictionaryInfo != null && dictionaryFilesOrdered != null;
 293         }
 294     }
 295
 296     DictionaryConfig dictionaryConfig = null;
 297
 298     int languageButtonPixels = -1;
 299
 300     static synchronized void staticInit(final Context context) {
 301         if (DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO != null) {
 302             return;
 303         }
 304         DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO = new LinkedHashMap<String, DictionaryInfo>();
 305         final BufferedReader reader = new BufferedReader(
 306                 new InputStreamReader(context.getResources().openRawResource(R.raw.dictionary_info)));
 307         try {
 308             String line;
 309             while ((line = reader.readLine()) != null) {
 310                 if (line.startsWith("#") || line.length() == 0) {
 311                     continue;
 312                 }
 313                 final DictionaryInfo dictionaryInfo = new DictionaryInfo(line);
 314                 DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO.put(
 315                         dictionaryInfo.uncompressedFilename, dictionaryInfo);
 316             }
 317         } catch (IOException e) {
 318             Log.e(LOG, "Failed to load downloadable dictionary lists.", e);
 319         }
 320         try { reader.close(); } catch (IOException e) {}
 321     }
 322
 323     private File dictDir;
 324
 325     @Override
 326     public void onCreate() {
 327         super.onCreate();
 328         Log.d("QuickDic", "Application: onCreate");
 329         TransliteratorManager.init(null);
 330         staticInit(getApplicationContext());
 331
 332         languageButtonPixels = (int) TypedValue.applyDimension(
 333                 TypedValue.COMPLEX_UNIT_DIP, 60, getResources().getDisplayMetrics());
 334
 335         // Load the dictionaries we know about.
 336         dictionaryConfig = PersistentObjectCache.init(getApplicationContext()).read(
 337                 C.DICTIONARY_CONFIGS, DictionaryConfig.class);
 338         if (dictionaryConfig == null) {
 339             dictionaryConfig = new DictionaryConfig();
 340         }
 341         if (!dictionaryConfig.isValid()) {
 342             dictionaryConfig = new DictionaryConfig();
 343         }
 344
 345         // Theme stuff.
 346         setTheme(getSelectedTheme().themeId);
 347         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 348         prefs.registerOnSharedPreferenceChangeListener(new OnSharedPreferenceChangeListener() {
 349             @Override
 350             public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
 351                     String key) {
 352                 Log.d("QuickDic", "prefs changed: " + key);
 353                 if (key.equals(getString(R.string.themeKey))) {
 354                     setTheme(getSelectedTheme().themeId);
 355                 }
 356             }
 357         });
 358     }
 359
 360     public void onCreateGlobalOptionsMenu(
 361             final Context context, final Menu menu) {
 362         final MenuItem about = menu.add(getString(R.string.about));
 363         MenuItemCompat.setShowAsAction(about, MenuItem.SHOW_AS_ACTION_NEVER);
 364         about.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 365             public boolean onMenuItemClick(final MenuItem menuItem) {
 366                 final Intent intent = new Intent(getApplicationContext(), AboutActivity.class);
 367                 context.startActivity(intent);
 368                 return false;
 369             }
 370         });
 371
 372         final MenuItem help = menu.add(getString(R.string.help));
 373         MenuItemCompat.setShowAsAction(help, MenuItem.SHOW_AS_ACTION_NEVER);
 374         help.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 375             public boolean onMenuItemClick(final MenuItem menuItem) {
 376                 context.startActivity(HtmlDisplayActivity.getHelpLaunchIntent(getApplicationContext()));
 377                 return false;
 378             }
 379         });
 380
 381         final MenuItem preferences = menu.add(getString(R.string.settings));
 382         MenuItemCompat.setShowAsAction(preferences, MenuItem.SHOW_AS_ACTION_NEVER);
 383         preferences.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 384             public boolean onMenuItemClick(final MenuItem menuItem) {
 385                 PreferenceActivity.prefsMightHaveChanged = true;
 386                 final Intent intent = new Intent(getApplicationContext(), PreferenceActivity.class);
 387                 context.startActivity(intent);
 388                 return false;
 389             }
 390         });
 391
 392         final MenuItem reportIssue = menu.add(getString(R.string.reportIssue));
 393         MenuItemCompat.setShowAsAction(reportIssue, MenuItem.SHOW_AS_ACTION_NEVER);
 394         reportIssue.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 395             public boolean onMenuItemClick(final MenuItem menuItem) {
 396                 final Intent intent = new Intent(Intent.ACTION_VIEW);
 397                 intent.setData(Uri
 398                         .parse("http://github.com/rdoeffinger/Dictionary/issues"));
 399                 context.startActivity(intent);
 400                 return false;
 401             }
 402         });
 403     }
 404
 405     private String selectDefaultDir() {
 406         final File defaultDictDir = new File(Environment.getExternalStorageDirectory(), "quickDic");
 407         String dir = defaultDictDir.getAbsolutePath();
 408         File dictDir = new File(dir);
 409         if (dictDir.isDirectory() && dictDir.list().length > 0) {
 410             return dir;
 411         }
 412         File efd = getApplicationContext().getExternalFilesDir(null);
 413         if (efd != null) {
 414             efd.mkdirs();
 415             if (!dictDir.isDirectory() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
 416                 getApplicationContext().getExternalFilesDirs(null);
 417             }
 418             if (efd.isDirectory() && efd.canWrite() && checkFileCreate(efd)) {
 419                 return efd.getAbsolutePath();
 420             }
 421         }
 422         return dir;
 423     }
 424
 425     public synchronized File getDictDir() {
 426         // This metaphor doesn't work, because we've already reset
 427         // prefsMightHaveChanged.
 428         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 429         String dir = prefs.getString(getString(R.string.quickdicDirectoryKey), "");
 430         if (dir.isEmpty()) {
 431             dir = selectDefaultDir();
 432         }
 433         dictDir = new File(dir);
 434         dictDir.mkdirs();
 435         if (!dictDir.isDirectory() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
 436              getApplicationContext().getExternalFilesDirs(null);
 437         }
 438         return dictDir;
 439     }
 440
 441     static public boolean checkFileCreate(File dir) {
 442         boolean res = false;
 443         File testfile = new File(dir, "quickdic_writetest");
 444         try {
 445             testfile.delete();
 446             res = testfile.createNewFile() & testfile.delete();
 447         } catch (Exception e) {
 448         }
 449         return res;
 450     }
 451
 452     public File getWordListFile() {
 453         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 454         String file = prefs.getString(getString(R.string.wordListFileKey), "");
 455         if (file.isEmpty()) {
 456             return new File(getDictDir(), "wordList.txt");
 457         }
 458         return new File(file);
 459     }
 460
 461     public Theme getSelectedTheme() {
 462         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 463         final String theme = prefs.getString(getString(R.string.themeKey), "themeLight");
 464         if (theme.equals("themeLight")) {
 465             return Theme.LIGHT;
 466         } else {
 467             return Theme.DEFAULT;
 468         }
 469     }
 470
 471     public File getPath(String uncompressedFilename) {
 472         return new File(getDictDir(), uncompressedFilename);
 473     }
 474
 475     String defaultLangISO2 = Locale.getDefault().getLanguage().toLowerCase();
 476     String defaultLangName = null;
 477     final Map<String, String> fileToNameCache = new LinkedHashMap<String, String>();
 478
 479     public String isoCodeToLocalizedLanguageName(final String isoCode) {
 480         final Language.LanguageResources languageResources = isoCodeToResources
 481                 .get(isoCode);
 482         final String lang = languageResources != null ? getApplicationContext().getString(
 483                 languageResources.nameId) : isoCode;
 484         return lang;
 485     }
 486
 487     public List<IndexInfo> sortedIndexInfos(List<IndexInfo> indexInfos) {
 488         // Hack to put the default locale first in the name.
 489         if (indexInfos.size() > 1 &&
 490                 indexInfos.get(1).shortName.toLowerCase().equals(defaultLangISO2)) {
 491             List<IndexInfo> result = new ArrayList<DictionaryInfo.IndexInfo>(indexInfos);
 492             ListUtil.swap(result, 0, 1);
 493             return result;
 494         }
 495         return indexInfos;
 496     }
 497
 498     public synchronized String getDictionaryName(final String uncompressedFilename) {
 499         final String currentLocale = Locale.getDefault().getLanguage().toLowerCase();
 500         if (!currentLocale.equals(defaultLangISO2)) {
 501             defaultLangISO2 = currentLocale;
 502             fileToNameCache.clear();
 503             defaultLangName = null;
 504         }
 505         if (defaultLangName == null) {
 506             defaultLangName = isoCodeToLocalizedLanguageName(defaultLangISO2);
 507         }
 508
 509         String name = fileToNameCache.get(uncompressedFilename);
 510         if (name != null) {
 511             return name;
 512         }
 513
 514         final DictionaryInfo dictionaryInfo = DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO
 515                 .get(uncompressedFilename);
 516         if (dictionaryInfo != null) {
 517             final StringBuilder nameBuilder = new StringBuilder();
 518
 519             List<IndexInfo> sortedIndexInfos = sortedIndexInfos(dictionaryInfo.indexInfos);
 520             for (int i = 0; i < sortedIndexInfos.size(); ++i) {
 521                 if (i > 0) {
 522                     nameBuilder.append("-");
 523                 }
 524                 nameBuilder
 525                         .append(isoCodeToLocalizedLanguageName(sortedIndexInfos.get(i).shortName));
 526             }
 527             name = nameBuilder.toString();
 528         } else {
 529             name = uncompressedFilename.replace(".quickdic", "");
 530         }
 531         fileToNameCache.put(uncompressedFilename, name);
 532         return name;
 533     }
 534
 535     public View createButton(final Context context, final DictionaryInfo dictionaryInfo,
 536             final IndexInfo indexInfo) {
 537         LanguageResources languageResources = isoCodeToResources.get(indexInfo.shortName);
 538         View result;
 539
 540         if (languageResources == null || languageResources.flagId <= 0) {
 541             Button button = new Button(context);
 542             button.setText(indexInfo.shortName);
 543             result = button;
 544         } else {
 545             ImageButton button = new ImageButton(context);
 546             button.setImageResource(languageResources.flagId);
 547             button.setScaleType(ScaleType.FIT_CENTER);
 548             result = button;
 549         }
 550         result.setLayoutParams(new LinearLayout.LayoutParams(languageButtonPixels, languageButtonPixels * 2 / 3));
 551         return result;
 552     }
 553
 554     public synchronized void moveDictionaryToTop(final DictionaryInfo dictionaryInfo) {
 555         dictionaryConfig.dictionaryFilesOrdered.remove(dictionaryInfo.uncompressedFilename);
 556         dictionaryConfig.dictionaryFilesOrdered.add(0, dictionaryInfo.uncompressedFilename);
 557         PersistentObjectCache.getInstance().write(C.DICTIONARY_CONFIGS, dictionaryConfig);
 558     }
 559
 560     public synchronized void deleteDictionary(final DictionaryInfo dictionaryInfo) {
 561         while (dictionaryConfig.dictionaryFilesOrdered.remove(dictionaryInfo.uncompressedFilename)) {
 562         }
 563         dictionaryConfig.uncompressedFilenameToDictionaryInfo
 564                 .remove(dictionaryInfo.uncompressedFilename);
 565         getPath(dictionaryInfo.uncompressedFilename).delete();
 566         PersistentObjectCache.getInstance().write(C.DICTIONARY_CONFIGS, dictionaryConfig);
 567     }
 568
 569     final Comparator collator = USE_COLLATOR ? Collator.getInstance() : String.CASE_INSENSITIVE_ORDER;
 570     final Comparator<String> uncompressedFilenameComparator = new Comparator<String>() {
 571         @Override
 572         public int compare(String uncompressedFilename1, String uncompressedFilename2) {
 573             final String name1 = getDictionaryName(uncompressedFilename1);
 574             final String name2 = getDictionaryName(uncompressedFilename2);
 575             if (defaultLangName.length() > 0) {
 576                 if (name1.startsWith(defaultLangName + "-")
 577                         && !name2.startsWith(defaultLangName + "-")) {
 578                     return -1;
 579                 } else if (name2.startsWith(defaultLangName + "-")
 580                         && !name1.startsWith(defaultLangName + "-")) {
 581                     return 1;
 582                 }
 583             }
 584             return collator.compare(name1, name2);
 585         }
 586     };
 587     final Comparator<DictionaryInfo> dictionaryInfoComparator = new Comparator<DictionaryInfo>() {
 588         @Override
 589         public int compare(DictionaryInfo d1, DictionaryInfo d2) {
 590             // Single-index dictionaries first.
 591             if (d1.indexInfos.size() != d2.indexInfos.size()) {
 592                 return d1.indexInfos.size() - d2.indexInfos.size();
 593             }
 594             return uncompressedFilenameComparator.compare(d1.uncompressedFilename,
 595                     d2.uncompressedFilename);
 596         }
 597     };
 598
 599     public void backgroundUpdateDictionaries(final Runnable onUpdateFinished) {
 600         new Thread(new Runnable() {
 601             @Override
 602             public void run() {
 603                 final DictionaryConfig oldDictionaryConfig = new DictionaryConfig();
 604                 synchronized (DictionaryApplication.this) {
 605                     oldDictionaryConfig.dictionaryFilesOrdered
 606                             .addAll(dictionaryConfig.dictionaryFilesOrdered);
 607                 }
 608                 final DictionaryConfig newDictionaryConfig = new DictionaryConfig();
 609                 for (final String uncompressedFilename : oldDictionaryConfig.dictionaryFilesOrdered) {
 610                     final File dictFile = getPath(uncompressedFilename);
 611                     final DictionaryInfo dictionaryInfo = Dictionary.getDictionaryInfo(dictFile);
 612                     if (dictionaryInfo.isValid() || dictFile.exists()) {
 613                         newDictionaryConfig.dictionaryFilesOrdered.add(uncompressedFilename);
 614                         newDictionaryConfig.uncompressedFilenameToDictionaryInfo.put(
 615                                 uncompressedFilename, dictionaryInfo);
 616                     }
 617                 }
 618
 619                 // Are there dictionaries on the device that we didn't know
 620                 // about already?
 621                 // Pick them up and put them at the end of the list.
 622                 final List<String> toAddSorted = new ArrayList<String>();
 623                 final File[] dictDirFiles = getDictDir().listFiles();
 624                 if (dictDirFiles != null) {
 625                     for (final File file : dictDirFiles) {
 626                         if (file.getName().endsWith(".zip")) {
 627                             if (DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO
 628                                     .containsKey(file.getName().replace(".zip", ""))) {
 629                                 file.delete();
 630                             }
 631                         }
 632                         if (!file.getName().endsWith(".quickdic")) {
 633                             continue;
 634                         }
 635                         if (newDictionaryConfig.uncompressedFilenameToDictionaryInfo
 636                                 .containsKey(file.getName())) {
 637                             // We have it in our list already.
 638                             continue;
 639                         }
 640                         final DictionaryInfo dictionaryInfo = Dictionary.getDictionaryInfo(file);
 641                         if (!dictionaryInfo.isValid()) {
 642                             Log.e(LOG, "Unable to parse dictionary: " + file.getPath());
 643                         }
 644
 645                         toAddSorted.add(file.getName());
 646                         newDictionaryConfig.uncompressedFilenameToDictionaryInfo.put(
 647                                 file.getName(), dictionaryInfo);
 648                     }
 649                 } else {
 650                     Log.w(LOG, "dictDir is not a directory: " + getDictDir().getPath());
 651                 }
 652                 if (!toAddSorted.isEmpty()) {
 653                     Collections.sort(toAddSorted, uncompressedFilenameComparator);
 654                     newDictionaryConfig.dictionaryFilesOrdered.addAll(toAddSorted);
 655                 }
 656
 657                 try {
 658                     PersistentObjectCache.getInstance()
 659                                  .write(C.DICTIONARY_CONFIGS, newDictionaryConfig);
 660                 } catch (Exception e) {
 661                     Log.e(LOG, "Failed persisting dictionary configs", e);
 662                 }
 663
 664                 synchronized (DictionaryApplication.this) {
 665                     dictionaryConfig = newDictionaryConfig;
 666                 }
 667
 668                 try {
 669                     onUpdateFinished.run();
 670                 } catch (Exception e) {
 671                     Log.e(LOG, "Exception running callback.", e);
 672                 }
 673             }
 674         }).start();
 675     }
 676
 677     public boolean matchesFilters(final DictionaryInfo dictionaryInfo, final String[] filters) {
 678         if (filters == null) {
 679             return true;
 680         }
 681         for (final String filter : filters) {
 682             if (!getDictionaryName(dictionaryInfo.uncompressedFilename).toLowerCase().contains(
 683                     filter)) {
 684                 return false;
 685             }
 686         }
 687         return true;
 688     }
 689
 690     public synchronized List<DictionaryInfo> getDictionariesOnDevice(String[] filters) {
 691         final List<DictionaryInfo> result = new ArrayList<DictionaryInfo>(
 692                 dictionaryConfig.dictionaryFilesOrdered.size());
 693         for (final String uncompressedFilename : dictionaryConfig.dictionaryFilesOrdered) {
 694             final DictionaryInfo dictionaryInfo = dictionaryConfig.uncompressedFilenameToDictionaryInfo
 695                     .get(uncompressedFilename);
 696             if (dictionaryInfo != null && matchesFilters(dictionaryInfo, filters)) {
 697                 result.add(dictionaryInfo);
 698             }
 699         }
 700         return result;
 701     }
 702
 703     public List<DictionaryInfo> getDownloadableDictionaries(String[] filters) {
 704         final List<DictionaryInfo> result = new ArrayList<DictionaryInfo>(
 705                 dictionaryConfig.dictionaryFilesOrdered.size());
 706
 707         final Map<String, DictionaryInfo> remaining = new LinkedHashMap<String, DictionaryInfo>(
 708                 DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO);
 709         remaining.keySet().removeAll(dictionaryConfig.dictionaryFilesOrdered);
 710         for (final DictionaryInfo dictionaryInfo : remaining.values()) {
 711             if (matchesFilters(dictionaryInfo, filters)) {
 712                 result.add(dictionaryInfo);
 713             }
 714         }
 715         Collections.sort(result, dictionaryInfoComparator);
 716         return result;
 717     }
 718
 719     public synchronized boolean isDictionaryOnDevice(String uncompressedFilename) {
 720         return dictionaryConfig.uncompressedFilenameToDictionaryInfo.get(uncompressedFilename) != null;
 721     }
 722
 723     public boolean updateAvailable(final DictionaryInfo dictionaryInfo) {
 724         final DictionaryInfo downloadable =
 725                 DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO.get(
 726                         dictionaryInfo.uncompressedFilename);
 727         return downloadable != null &&
 728                 downloadable.creationMillis > dictionaryInfo.creationMillis;
 729     }
 730
 731     public DictionaryInfo getDownloadable(final String uncompressedFilename) {
 732         final DictionaryInfo downloadable = DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO
 733                 .get(uncompressedFilename);
 734         return downloadable;
 735     }
 736
 737 }