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