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