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

   1 // Copyright 2011 Google Inc. All Rights Reserved.
   2 // Some Parts Copyright 2013 Dominik Köppl
   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.annotation.SuppressLint;
  18 import android.app.Dialog;
  19 import android.app.SearchManager;
  20 import android.content.Context;
  21 import android.content.Intent;
  22 import android.content.SharedPreferences;
  23 import android.graphics.Color;
  24 import android.graphics.Typeface;
  25 import android.net.Uri;
  26 import android.os.Bundle;
  27 import android.os.Handler;
  28 import android.preference.PreferenceManager;
  29 import android.speech.tts.TextToSpeech;
  30 import android.speech.tts.TextToSpeech.OnInitListener;
  31 import android.support.design.widget.FloatingActionButton;
  32 import android.support.v4.view.MenuItemCompat;
  33 import android.support.v7.app.ActionBar;
  34 import android.support.v7.app.ActionBarActivity;
  35 import android.support.v7.widget.SearchView;
  36 import android.support.v7.widget.SearchView.OnQueryTextListener;
  37 import android.support.v7.widget.Toolbar;
  38 import android.text.ClipboardManager;
  39 import android.text.InputType;
  40 import android.text.Spannable;
  41 import android.text.method.LinkMovementMethod;
  42 import android.text.style.ClickableSpan;
  43 import android.text.style.StyleSpan;
  44 import android.util.Log;
  45 import android.util.TypedValue;
  46 import android.view.ContextMenu;
  47 import android.view.ContextMenu.ContextMenuInfo;
  48 import android.view.Gravity;
  49 import android.view.KeyEvent;
  50 import android.view.Menu;
  51 import android.view.MenuItem;
  52 import android.view.MenuItem.OnMenuItemClickListener;
  53 import android.view.MotionEvent;
  54 import android.view.View;
  55 import android.view.View.OnClickListener;
  56 import android.view.View.OnLongClickListener;
  57 import android.view.ViewGroup;
  58 import android.view.WindowManager;
  59 import android.view.inputmethod.EditorInfo;
  60 import android.view.inputmethod.InputMethodManager;
  61 import android.widget.AdapterView;
  62 import android.widget.AdapterView.AdapterContextMenuInfo;
  63 import android.widget.AdapterView.OnItemClickListener;
  64 import android.widget.BaseAdapter;
  65 import android.widget.Button;
  66 import android.widget.FrameLayout;
  67 import android.widget.ImageButton;
  68 import android.widget.ImageView;
  69 import android.widget.ImageView.ScaleType;
  70 import android.widget.LinearLayout;
  71 import android.widget.ListAdapter;
  72 import android.widget.ListView;
  73 import android.widget.TableLayout;
  74 import android.widget.TableRow;
  75 import android.widget.TextView;
  76 import android.widget.TextView.BufferType;
  77 import android.widget.Toast;
  78
  79 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  80 import com.hughes.android.dictionary.engine.Dictionary;
  81 import com.hughes.android.dictionary.engine.EntrySource;
  82 import com.hughes.android.dictionary.engine.HtmlEntry;
  83 import com.hughes.android.dictionary.engine.Index;
  84 import com.hughes.android.dictionary.engine.Index.IndexEntry;
  85 import com.hughes.android.dictionary.engine.Language.LanguageResources;
  86 import com.hughes.android.dictionary.engine.PairEntry;
  87 import com.hughes.android.dictionary.engine.PairEntry.Pair;
  88 import com.hughes.android.dictionary.engine.RowBase;
  89 import com.hughes.android.dictionary.engine.TokenRow;
  90 import com.hughes.android.dictionary.engine.TransliteratorManager;
  91 import com.hughes.android.util.IntentLauncher;
  92 import com.hughes.android.util.NonLinkClickableSpan;
  93 import com.hughes.util.StringUtil;
  94
  95 import java.io.File;
  96 import java.io.FileWriter;
  97 import java.io.IOException;
  98 import java.io.PrintWriter;
  99 import java.io.RandomAccessFile;
 100 import java.text.SimpleDateFormat;
 101 import java.util.Arrays;
 102 import java.util.Collections;
 103 import java.util.Date;
 104 import java.util.HashMap;
 105 import java.util.LinkedHashSet;
 106 import java.util.List;
 107 import java.util.Locale;
 108 import java.util.Random;
 109 import java.util.Set;
 110 import java.util.concurrent.Executor;
 111 import java.util.concurrent.ExecutorService;
 112 import java.util.concurrent.Executors;
 113 import java.util.concurrent.ThreadFactory;
 114 import java.util.concurrent.atomic.AtomicBoolean;
 115 import java.util.regex.Matcher;
 116 import java.util.regex.Pattern;
 117
 118 public class DictionaryActivity extends ActionBarActivity {
 119
 120     static final String LOG = "QuickDic";
 121
 122     DictionaryApplication application;
 123
 124     File dictFile = null;
 125     RandomAccessFile dictRaf = null;
 126
 127     Dictionary dictionary = null;
 128
 129     int indexIndex = 0;
 130
 131     Index index = null;
 132
 133     List<RowBase> rowsToShow = null; // if not null, just show these rows.
 134
 135     final Random rand = new Random();
 136
 137     final Handler uiHandler = new Handler();
 138
 139     private final ExecutorService searchExecutor = Executors.newSingleThreadExecutor(new ThreadFactory() {
 140         @Override
 141         public Thread newThread(Runnable r) {
 142             return new Thread(r, "searchExecutor");
 143         }
 144     });
 145
 146     private SearchOperation currentSearchOperation = null;
 147
 148     TextToSpeech textToSpeech;
 149     volatile boolean ttsReady;
 150
 151     Typeface typeface;
 152     DictionaryApplication.Theme theme = DictionaryApplication.Theme.LIGHT;
 153     int textColorFg = Color.BLACK;
 154     int fontSizeSp;
 155
 156     private ListView listView;
 157     private ListView getListView() {
 158         if (listView == null) {
 159             listView = (ListView)findViewById(android.R.id.list);
 160         }
 161         return listView;
 162     }
 163
 164     private void setListAdapter(ListAdapter adapter) {
 165         getListView().setAdapter(adapter);
 166     }
 167
 168     private ListAdapter getListAdapter() {
 169         return getListView().getAdapter();
 170     }
 171
 172     SearchView searchView;
 173     ImageButton languageButton;
 174     SearchView.OnQueryTextListener onQueryTextListener;
 175
 176     MenuItem nextWordMenuItem, previousWordMenuItem, randomWordMenuItem;
 177
 178     // Never null.
 179     private File wordList = null;
 180     private boolean saveOnlyFirstSubentry = false;
 181     private boolean clickOpensContextMenu = false;
 182
 183     // Visible for testing.
 184     ListAdapter indexAdapter = null;
 185
 186     /**
 187      * For some languages, loading the transliterators used in this search takes
 188      * a long time, so we fire it up on a different thread, and don't invoke it
 189      * from the main thread until it's already finished once.
 190      */
 191     private volatile boolean indexPrepFinished = false;
 192
 193     public DictionaryActivity() {
 194     }
 195
 196     public static Intent getLaunchIntent(Context c, final File dictFile, final String indexShortName,
 197             final String searchToken) {
 198         final Intent intent = new Intent(c, DictionaryActivity.class);
 199         intent.putExtra(C.DICT_FILE, dictFile.getPath());
 200         intent.putExtra(C.INDEX_SHORT_NAME, indexShortName);
 201         intent.putExtra(C.SEARCH_TOKEN, searchToken);
 202         intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
 203         return intent;
 204     }
 205
 206     @Override
 207     protected void onSaveInstanceState(final Bundle outState) {
 208         super.onSaveInstanceState(outState);
 209         Log.d(LOG, "onSaveInstanceState: " + searchView.getQuery().toString());
 210         outState.putString(C.INDEX_SHORT_NAME, index.shortName);
 211         outState.putString(C.SEARCH_TOKEN, searchView.getQuery().toString());
 212     }
 213
 214     private int getMatchLen(String search, Index.IndexEntry e)
 215     {
 216         if (e == null) return 0;
 217         for (int i = 0; i < search.length(); ++i)
 218         {
 219             String a = search.substring(0, i + 1);
 220             String b = e.token.substring(0, i + 1);
 221             if (!a.equalsIgnoreCase(b))
 222                 return i;
 223         }
 224         return search.length();
 225     }
 226
 227     @Override
 228     public void onCreate(Bundle savedInstanceState) {
 229         // This needs to be before super.onCreate, otherwise ActionbarSherlock
 230         // doesn't makes the background of the actionbar white when you're
 231         // in the dark theme.
 232         setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 233
 234         Log.d(LOG, "onCreate:" + this);
 235         super.onCreate(savedInstanceState);
 236
 237         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 238
 239         // Don't auto-launch if this fails.
 240         prefs.edit().remove(C.DICT_FILE).commit();
 241
 242         setContentView(R.layout.dictionary_activity);
 243
 244         application = (DictionaryApplication) getApplication();
 245         theme = application.getSelectedTheme();
 246         textColorFg = getResources().getColor(theme.tokenRowFgColor);
 247
 248         final Intent intent = getIntent();
 249         String intentAction = intent.getAction();
 250         /**
 251          * @author Dominik Köppl Querying the Intent
 252          *         com.hughes.action.ACTION_SEARCH_DICT is the advanced query
 253          *         Arguments: SearchManager.QUERY -> the phrase to search from
 254          *         -> language in which the phrase is written to -> to which
 255          *         language shall be translated
 256          */
 257         if (intentAction != null && intentAction.equals("com.hughes.action.ACTION_SEARCH_DICT"))
 258         {
 259             String query = intent.getStringExtra(SearchManager.QUERY);
 260             String from = intent.getStringExtra("from");
 261             if (from != null)
 262                 from = from.toLowerCase(Locale.US);
 263             String to = intent.getStringExtra("to");
 264             if (to != null)
 265                 to = to.toLowerCase(Locale.US);
 266             if (query != null)
 267             {
 268                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 269             }
 270             if (intent.getStringExtra(C.DICT_FILE) == null && (from != null || to != null))
 271             {
 272                 Log.d(LOG, "DictSearch: from: " + from + " to " + to);
 273                 List<DictionaryInfo> dicts = application.getDictionariesOnDevice(null);
 274                 for (DictionaryInfo info : dicts)
 275                 {
 276                     boolean hasFrom = from == null;
 277                     boolean hasTo = to == null;
 278                     for (IndexInfo index : info.indexInfos)
 279                     {
 280                         if (!hasFrom && index.shortName.toLowerCase(Locale.US).equals(from))
 281                             hasFrom = true;
 282                         if (!hasTo && index.shortName.toLowerCase(Locale.US).equals(to))
 283                             hasTo = true;
 284                     }
 285                     if (hasFrom && hasTo)
 286                     {
 287                         if (from != null)
 288                         {
 289                             int which_index = 0;
 290                             for (; which_index < info.indexInfos.size(); ++which_index)
 291                             {
 292                                 if (info.indexInfos.get(which_index).shortName.toLowerCase(
 293                                         Locale.US).equals(from))
 294                                     break;
 295                             }
 296                             intent.putExtra(C.INDEX_SHORT_NAME,
 297                                     info.indexInfos.get(which_index).shortName);
 298
 299                         }
 300                         intent.putExtra(C.DICT_FILE, application.getPath(info.uncompressedFilename)
 301                                 .toString());
 302                         break;
 303                     }
 304                 }
 305
 306             }
 307         }
 308         /**
 309          * @author Dominik Köppl Querying the Intent Intent.ACTION_SEARCH is a
 310          *         simple query Arguments follow from android standard (see
 311          *         documentation)
 312          */
 313         if (intentAction != null && intentAction.equals(Intent.ACTION_SEARCH))
 314         {
 315             String query = intent.getStringExtra(SearchManager.QUERY);
 316             if (query != null)
 317                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 318         }
 319         if (intentAction != null && intentAction.equals(Intent.ACTION_SEND))
 320         {
 321             String query = intent.getStringExtra(Intent.EXTRA_TEXT);
 322             if (query != null)
 323                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 324         }
 325         /*
 326          * This processes text on M+ devices where QuickDic shows up in the context menu.
 327          */
 328         if (intentAction != null && intentAction.equals(Intent.ACTION_PROCESS_TEXT)) {
 329             String query = intent.getStringExtra(Intent.EXTRA_PROCESS_TEXT);
 330             if (query != null) {
 331                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 332             }
 333         }
 334         /**
 335          * @author Dominik Köppl If no dictionary is chosen, use the default
 336          *         dictionary specified in the preferences If this step does
 337          *         fail (no default dictionary specified), show a toast and
 338          *         abort.
 339          */
 340         if (intent.getStringExtra(C.DICT_FILE) == null)
 341         {
 342             String dictfile = prefs.getString(getString(R.string.defaultDicKey), null);
 343             if (dictfile != null)
 344                 intent.putExtra(C.DICT_FILE, application.getPath(dictfile).toString());
 345         }
 346         String dictFilename = intent.getStringExtra(C.DICT_FILE);
 347         if (dictFilename == null && intent.getStringExtra(C.SEARCH_TOKEN) != null)
 348         {
 349             final List<DictionaryInfo> dics = application.getDictionariesOnDevice(null);
 350             final String search = intent.getStringExtra(C.SEARCH_TOKEN);
 351             String bestFname = null;
 352             String bestIndex = null;
 353             int bestMatchLen = 2; // ignore shorter matches
 354             AtomicBoolean dummy = new AtomicBoolean();
 355             for (int i = 0; dictFilename == null && i < dics.size(); ++i)
 356             {
 357                 try {
 358                     Log.d(LOG, "Checking dictionary " + dics.get(i).uncompressedFilename);
 359                     final File dictfile = application.getPath(dics.get(i).uncompressedFilename);
 360                     Dictionary dic = new Dictionary(new RandomAccessFile(dictfile, "r"));
 361                     for (int j = 0; j < dic.indices.size(); ++j) {
 362                         Index idx = dic.indices.get(j);
 363                         Log.d(LOG, "Checking index " + idx.shortName);
 364                         if (idx.findExact(search) != null)
 365                         {
 366                             Log.d(LOG, "Found exact match");
 367                             dictFilename = dictfile.toString();
 368                             intent.putExtra(C.INDEX_SHORT_NAME, idx.shortName);
 369                             break;
 370                         }
 371                         int matchLen = getMatchLen(search, idx.findInsertionPoint(search, dummy));
 372                         Log.d(LOG, "Found partial match length " + matchLen);
 373                         if (matchLen > bestMatchLen)
 374                         {
 375                             bestFname = dictfile.toString();
 376                             bestIndex = idx.shortName;
 377                             bestMatchLen = matchLen;
 378                         }
 379                     }
 380                 } catch (Exception e) {}
 381             }
 382             if (dictFilename == null && bestFname != null)
 383             {
 384                 dictFilename = bestFname;
 385                 intent.putExtra(C.INDEX_SHORT_NAME, bestIndex);
 386             }
 387         }
 388
 389         if (dictFilename == null)
 390         {
 391             Toast.makeText(this, getString(R.string.no_dict_file), Toast.LENGTH_LONG).show();
 392             startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 393             finish();
 394             return;
 395         }
 396         if (dictFilename != null)
 397             dictFile = new File(dictFilename);
 398
 399         ttsReady = false;
 400         textToSpeech = new TextToSpeech(getApplicationContext(), new OnInitListener() {
 401             @Override
 402             public void onInit(int status) {
 403                 ttsReady = true;
 404                 updateTTSLanguage(indexIndex);
 405             }
 406         });
 407
 408         try {
 409             final String name = application.getDictionaryName(dictFile.getName());
 410             this.setTitle("QuickDic: " + name);
 411             dictRaf = new RandomAccessFile(dictFile, "r");
 412             dictionary = new Dictionary(dictRaf);
 413         } catch (Exception e) {
 414             Log.e(LOG, "Unable to load dictionary.", e);
 415             if (dictRaf != null) {
 416                 try {
 417                     dictRaf.close();
 418                 } catch (IOException e1) {
 419                     Log.e(LOG, "Unable to close dictRaf.", e1);
 420                 }
 421                 dictRaf = null;
 422             }
 423             Toast.makeText(this, getString(R.string.invalidDictionary, "", e.getMessage()),
 424                     Toast.LENGTH_LONG).show();
 425             startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 426             finish();
 427             return;
 428         }
 429         String targetIndex = intent.getStringExtra(C.INDEX_SHORT_NAME);
 430         if (savedInstanceState != null && savedInstanceState.getString(C.INDEX_SHORT_NAME) != null) {
 431             targetIndex = savedInstanceState.getString(C.INDEX_SHORT_NAME);
 432         }
 433         indexIndex = 0;
 434         for (int i = 0; i < dictionary.indices.size(); ++i) {
 435             if (dictionary.indices.get(i).shortName.equals(targetIndex)) {
 436                 indexIndex = i;
 437                 break;
 438             }
 439         }
 440         Log.d(LOG, "Loading index " + indexIndex);
 441         index = dictionary.indices.get(indexIndex);
 442         getListView().setEmptyView(findViewById(android.R.id.empty));
 443         setListAdapter(new IndexAdapter(index));
 444
 445         // Pre-load the collators.
 446         new Thread(new Runnable() {
 447             public void run() {
 448                 android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_BACKGROUND);
 449                 final long startMillis = System.currentTimeMillis();
 450                 try {
 451                     TransliteratorManager.init(new TransliteratorManager.Callback() {
 452                         @Override
 453                         public void onTransliteratorReady() {
 454                             uiHandler.post(new Runnable() {
 455                                 @Override
 456                                 public void run() {
 457                                     onSearchTextChange(searchView.getQuery().toString());
 458                                 }
 459                             });
 460                         }
 461                     });
 462
 463                     for (final Index index : dictionary.indices) {
 464                         final String searchToken = index.sortedIndexEntries.get(0).token;
 465                         final IndexEntry entry = index.findExact(searchToken);
 466                         if (entry == null || !searchToken.equals(entry.token)) {
 467                             Log.e(LOG, "Couldn't find token: " + searchToken + ", " + (entry == null ? "null" : entry.token));
 468                         }
 469                     }
 470                     indexPrepFinished = true;
 471                 } catch (Exception e) {
 472                     Log.w(LOG,
 473                             "Exception while prepping.  This can happen if dictionary is closed while search is happening.");
 474                 }
 475                 Log.d(LOG, "Prepping indices took:" + (System.currentTimeMillis() - startMillis));
 476             }
 477         }).start();
 478
 479         String fontName = prefs.getString(getString(R.string.fontKey), "FreeSerif.otf.jpg");
 480         if ("SYSTEM".equals(fontName)) {
 481             typeface = Typeface.DEFAULT;
 482         } else if ("SERIF".equals(fontName)) {
 483             typeface = Typeface.SERIF;
 484         } else if ("SANS_SERIF".equals(fontName)) {
 485             typeface = Typeface.SANS_SERIF;
 486         } else if ("MONOSPACE".equals(fontName)) {
 487             typeface = Typeface.MONOSPACE;
 488         } else {
 489             if ("FreeSerif.ttf.jpg".equals(fontName)) {
 490                 fontName = "FreeSerif.otf.jpg";
 491             }
 492             try {
 493                 typeface = Typeface.createFromAsset(getAssets(), fontName);
 494             } catch (Exception e) {
 495                 Log.w(LOG, "Exception trying to use typeface, using default.", e);
 496                 Toast.makeText(this, getString(R.string.fontFailure, e.getLocalizedMessage()),
 497                         Toast.LENGTH_LONG).show();
 498             }
 499         }
 500         if (typeface == null) {
 501             Log.w(LOG, "Unable to create typeface, using default.");
 502             typeface = Typeface.DEFAULT;
 503         }
 504         final String fontSize = prefs.getString(getString(R.string.fontSizeKey), "14");
 505         try {
 506             fontSizeSp = Integer.parseInt(fontSize.trim());
 507         } catch (NumberFormatException e) {
 508             fontSizeSp = 14;
 509         }
 510
 511         // ContextMenu.
 512         registerForContextMenu(getListView());
 513
 514         // Cache some prefs.
 515         wordList = application.getWordListFile();
 516         saveOnlyFirstSubentry = prefs.getBoolean(getString(R.string.saveOnlyFirstSubentryKey),
 517                 false);
 518         clickOpensContextMenu = prefs.getBoolean(getString(R.string.clickOpensContextMenuKey),
 519                 false);
 520         Log.d(LOG, "wordList=" + wordList + ", saveOnlyFirstSubentry=" + saveOnlyFirstSubentry);
 521
 522         onCreateSetupActionBarAndSearchView();
 523
 524         View floatSwapButton = findViewById(R.id.floatSwapButton);
 525         floatSwapButton.setOnClickListener(new OnClickListener() {
 526             @Override
 527             public void onClick(View arg0) {
 528                 onLanguageButtonClick();
 529             }
 530         });
 531         floatSwapButton.setOnLongClickListener(new OnLongClickListener() {
 532             @Override
 533             public boolean onLongClick(View v) {
 534                 onLanguageButtonLongClick(v.getContext());
 535                 return true;
 536             }
 537         });
 538
 539         final FloatingActionButton floatSearchButton = (FloatingActionButton)findViewById(R.id.floatSearchButton);
 540         floatSearchButton.setOnClickListener(new OnClickListener() {
 541             @Override
 542             public void onClick(View arg0) {
 543                 if (!searchView.hasFocus()) {
 544                     searchView.requestFocus();
 545                 }
 546                 if (searchView.getQuery().toString().length() > 0) {
 547                     searchView.setQuery("", false);
 548                 }
 549                 showKeyboard();
 550                 searchView.setIconified(false);
 551             }
 552         });
 553
 554         // Set the search text from the intent, then the saved state.
 555         String text = getIntent().getStringExtra(C.SEARCH_TOKEN);
 556         if (savedInstanceState != null) {
 557             text = savedInstanceState.getString(C.SEARCH_TOKEN);
 558         }
 559         if (text == null) {
 560             text = "";
 561         }
 562         setSearchText(text, true);
 563         Log.d(LOG, "Trying to restore searchText=" + text);
 564
 565         setDictionaryPrefs(this, dictFile, index.shortName, searchView.getQuery().toString());
 566
 567         updateLangButton();
 568         searchView.requestFocus();
 569
 570         // http://stackoverflow.com/questions/2833057/background-listview-becomes-black-when-scrolling
 571 //        getListView().setCacheColorHint(0);
 572     }
 573
 574     private void onCreateSetupActionBarAndSearchView() {
 575         ActionBar actionBar = getSupportActionBar();
 576         actionBar.setDisplayShowTitleEnabled(false);
 577         actionBar.setDisplayShowHomeEnabled(false);
 578         actionBar.setDisplayHomeAsUpEnabled(false);
 579
 580         final LinearLayout customSearchView = new LinearLayout(getSupportActionBar().getThemedContext());
 581
 582         final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 583                 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 584         customSearchView.setLayoutParams(layoutParams);
 585
 586         listView.setOnItemClickListener(new OnItemClickListener() {
 587             @Override
 588             public void onItemClick(AdapterView<?> parent, View view, int row, long id) {
 589                 onListItemClick(getListView(), view, row, id);
 590             }
 591         });
 592
 593         languageButton = new ImageButton(customSearchView.getContext());
 594         languageButton.setScaleType(ScaleType.FIT_CENTER);
 595         languageButton.setOnClickListener(new OnClickListener() {
 596             @Override
 597             public void onClick(View v) {
 598                 onLanguageButtonLongClick(v.getContext());
 599             }
 600         });
 601         languageButton.setAdjustViewBounds(true);
 602         LinearLayout.LayoutParams lpb = new LinearLayout.LayoutParams(application.languageButtonPixels, LinearLayout.LayoutParams.MATCH_PARENT);
 603         customSearchView.addView(languageButton, lpb);
 604
 605         searchView = new SearchView(getSupportActionBar().getThemedContext());
 606
 607         // Get rid of search icon, it takes up too much space.
 608         // There is still text saying "search" in the search field.
 609         searchView.setIconifiedByDefault(true);
 610         searchView.setIconified(false);
 611
 612         searchView.setQueryHint(getString(R.string.searchText));
 613         searchView.setSubmitButtonEnabled(false);
 614         searchView.setInputType(InputType.TYPE_CLASS_TEXT);
 615         searchView.setImeOptions(
 616                 EditorInfo.IME_ACTION_DONE |
 617                         EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 618                         // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 619                         // 11
 620                         EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 621         onQueryTextListener = new OnQueryTextListener() {
 622             @Override
 623             public boolean onQueryTextSubmit(String query) {
 624                 Log.d(LOG, "OnQueryTextListener: onQueryTextSubmit: " + searchView.getQuery());
 625                 hideKeyboard();
 626                 return true;
 627             }
 628
 629             @Override
 630             public boolean onQueryTextChange(String newText) {
 631                 Log.d(LOG, "OnQueryTextListener: onQueryTextChange: " + searchView.getQuery());
 632                 onSearchTextChange(searchView.getQuery().toString());
 633                 return true;
 634             }
 635         };
 636         searchView.setOnQueryTextListener(onQueryTextListener);
 637         searchView.setFocusable(true);
 638         LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(0,
 639                 FrameLayout.LayoutParams.WRAP_CONTENT, 1);
 640         customSearchView.addView(searchView, lp);
 641
 642         actionBar.setCustomView(customSearchView);
 643         actionBar.setDisplayShowCustomEnabled(true);
 644
 645         // Avoid wasting space on large left inset
 646         Toolbar tb = (Toolbar)customSearchView.getParent();
 647         tb.setContentInsetsRelative(0, 0);
 648     }
 649
 650     @Override
 651     protected void onResume() {
 652         Log.d(LOG, "onResume");
 653         super.onResume();
 654         if (PreferenceActivity.prefsMightHaveChanged) {
 655             PreferenceActivity.prefsMightHaveChanged = false;
 656             finish();
 657             startActivity(getIntent());
 658         }
 659         showKeyboard();
 660     }
 661
 662     @Override
 663     protected void onPause() {
 664         super.onPause();
 665     }
 666
 667     @Override
 668     /**
 669      * Invoked when MyWebView returns, since the user might have clicked some
 670      * hypertext in the MyWebView.
 671      */
 672     protected void onActivityResult(int requestCode, int resultCode, Intent result) {
 673         super.onActivityResult(requestCode, resultCode, result);
 674         if (result != null && result.hasExtra(C.SEARCH_TOKEN)) {
 675             Log.d(LOG, "onActivityResult: " + result.getStringExtra(C.SEARCH_TOKEN));
 676             jumpToTextFromHyperLink(result.getStringExtra(C.SEARCH_TOKEN), indexIndex);
 677         }
 678     }
 679
 680     private static void setDictionaryPrefs(final Context context, final File dictFile,
 681             final String indexShortName, final String searchToken) {
 682         final SharedPreferences.Editor prefs = PreferenceManager.getDefaultSharedPreferences(
 683                 context).edit();
 684         prefs.putString(C.DICT_FILE, dictFile.getPath());
 685         prefs.putString(C.INDEX_SHORT_NAME, indexShortName);
 686         prefs.putString(C.SEARCH_TOKEN, ""); // Don't need to save search token.
 687         prefs.commit();
 688     }
 689
 690     @Override
 691     protected void onDestroy() {
 692         super.onDestroy();
 693         if (dictRaf == null) {
 694             return;
 695         }
 696
 697         final SearchOperation searchOperation = currentSearchOperation;
 698         currentSearchOperation = null;
 699
 700         // Before we close the RAF, we have to wind the current search down.
 701         if (searchOperation != null) {
 702             Log.d(LOG, "Interrupting search to shut down.");
 703             currentSearchOperation = null;
 704             searchOperation.interrupted.set(true);
 705         }
 706         searchExecutor.shutdownNow();
 707         textToSpeech.shutdown();
 708         textToSpeech = null;
 709
 710         try {
 711             Log.d(LOG, "Closing RAF.");
 712             dictRaf.close();
 713         } catch (IOException e) {
 714             Log.e(LOG, "Failed to close dictionary", e);
 715         }
 716         dictRaf = null;
 717     }
 718
 719     // --------------------------------------------------------------------------
 720     // Buttons
 721     // --------------------------------------------------------------------------
 722
 723     private void showKeyboard() {
 724         // For some reason, this doesn't always work the first time.
 725         // One way to replicate the problem:
 726         // Press the "task switch" button repeatedly to pause and resume
 727         for (int delay = 1; delay <= 101; delay += 100) {
 728             searchView.postDelayed(new Runnable() {
 729                 @Override
 730                 public void run() {
 731                     Log.d(LOG, "Trying to show soft keyboard.");
 732                     final boolean searchTextHadFocus = searchView.hasFocus();
 733                     searchView.requestFocusFromTouch();
 734                     final InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 735                     manager.showSoftInput(searchView, InputMethodManager.SHOW_IMPLICIT);
 736                     if (!searchTextHadFocus) {
 737                         defocusSearchText();
 738                     }
 739                 }
 740             }, delay);
 741         }
 742     }
 743
 744     private void hideKeyboard() {
 745         Log.d(LOG, "Hide soft keyboard.");
 746         searchView.clearFocus();
 747         InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 748         manager.hideSoftInputFromWindow(searchView.getWindowToken(), 0);
 749     }
 750
 751     void updateLangButton() {
 752         final LanguageResources languageResources =
 753                 DictionaryApplication.isoCodeToResources.get(index.shortName);
 754         if (languageResources != null && languageResources.flagId != 0) {
 755             languageButton.setImageResource(languageResources.flagId);
 756         } else {
 757             if (indexIndex % 2 == 0) {
 758                 languageButton.setImageResource(android.R.drawable.ic_media_next);
 759             } else {
 760                 languageButton.setImageResource(android.R.drawable.ic_media_previous);
 761             }
 762         }
 763         updateTTSLanguage(indexIndex);
 764     }
 765
 766     private void updateTTSLanguage(int i) {
 767         if (!ttsReady || index == null || textToSpeech == null) {
 768             Log.d(LOG, "Can't updateTTSLanguage.");
 769             return;
 770         }
 771         final Locale locale = new Locale(dictionary.indices.get(i).sortLanguage.getIsoCode());
 772         Log.d(LOG, "Setting TTS locale to: " + locale);
 773         try {
 774         final int ttsResult = textToSpeech.setLanguage(locale);
 775         if (ttsResult != TextToSpeech.LANG_AVAILABLE &&
 776                 ttsResult != TextToSpeech.LANG_COUNTRY_AVAILABLE) {
 777             Log.e(LOG, "TTS not available in this language: ttsResult=" + ttsResult);
 778         }
 779         } catch (Exception e) {
 780             Toast.makeText(this, getString(R.string.TTSbroken), Toast.LENGTH_LONG).show();
 781         }
 782     }
 783
 784     void onLanguageButtonClick() {
 785         if (dictionary.indices.size() == 1) {
 786             // No need to work to switch indices.
 787             return;
 788         }
 789         if (currentSearchOperation != null) {
 790             currentSearchOperation.interrupted.set(true);
 791             currentSearchOperation = null;
 792         }
 793         setIndexAndSearchText((indexIndex + 1) % dictionary.indices.size(),
 794                 searchView.getQuery().toString(), false);
 795     }
 796
 797     void onLanguageButtonLongClick(final Context context) {
 798         final Dialog dialog = new Dialog(context);
 799         dialog.setContentView(R.layout.select_dictionary_dialog);
 800         dialog.setTitle(R.string.selectDictionary);
 801
 802         final List<DictionaryInfo> installedDicts = application.getDictionariesOnDevice(null);
 803
 804         ListView listView = (ListView) dialog.findViewById(android.R.id.list);
 805         final Button button = new Button(listView.getContext());
 806         final String name = getString(R.string.dictionaryManager);
 807         button.setText(name);
 808         final IntentLauncher intentLauncher = new IntentLauncher(listView.getContext(),
 809                 DictionaryManagerActivity.getLaunchIntent(getApplicationContext())) {
 810             @Override
 811             protected void onGo() {
 812                 dialog.dismiss();
 813                 DictionaryActivity.this.finish();
 814             }
 815         };
 816         button.setOnClickListener(intentLauncher);
 817         listView.addHeaderView(button);
 818
 819         listView.setAdapter(new BaseAdapter() {
 820             @Override
 821             public View getView(int position, View convertView, ViewGroup parent) {
 822                 final DictionaryInfo dictionaryInfo = getItem(position);
 823
 824                 final LinearLayout result = new LinearLayout(parent.getContext());
 825
 826                 for (int i = 0; i < dictionaryInfo.indexInfos.size(); ++i) {
 827                     final IndexInfo indexInfo = dictionaryInfo.indexInfos.get(i);
 828                     final View button = application.createButton(parent.getContext(),
 829                             dictionaryInfo, indexInfo);
 830                     final IntentLauncher intentLauncher = new IntentLauncher(parent.getContext(),
 831                             getLaunchIntent(getApplicationContext(),
 832                                     application.getPath(dictionaryInfo.uncompressedFilename),
 833                                     indexInfo.shortName, searchView.getQuery().toString())) {
 834                         @Override
 835                         protected void onGo() {
 836                             dialog.dismiss();
 837                             DictionaryActivity.this.finish();
 838                         }
 839                     };
 840                     button.setOnClickListener(intentLauncher);
 841                     if (i == indexIndex && dictFile != null &&
 842                         dictFile.getName().equals(dictionaryInfo.uncompressedFilename)) {
 843                         button.setPressed(true);
 844                     }
 845                     result.addView(button);
 846                 }
 847
 848                 final TextView nameView = new TextView(parent.getContext());
 849                 final String name = application
 850                         .getDictionaryName(dictionaryInfo.uncompressedFilename);
 851                 nameView.setText(name);
 852                 final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 853                         ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 854                 layoutParams.width = 0;
 855                 layoutParams.weight = 1.0f;
 856                 nameView.setLayoutParams(layoutParams);
 857                 nameView.setGravity(Gravity.CENTER_VERTICAL);
 858                 result.addView(nameView);
 859                 return result;
 860             }
 861
 862             @Override
 863             public long getItemId(int position) {
 864                 return position;
 865             }
 866
 867             @Override
 868             public DictionaryInfo getItem(int position) {
 869                 return installedDicts.get(position);
 870             }
 871
 872             @Override
 873             public int getCount() {
 874                 return installedDicts.size();
 875             }
 876         });
 877         dialog.show();
 878     }
 879
 880     void onUpDownButton(final boolean up) {
 881         if (isFiltered()) {
 882             return;
 883         }
 884         final int firstVisibleRow = getListView().getFirstVisiblePosition();
 885         final RowBase row = index.rows.get(firstVisibleRow);
 886         final TokenRow tokenRow = row.getTokenRow(true);
 887         final int destIndexEntry;
 888         if (up) {
 889             if (row != tokenRow) {
 890                 destIndexEntry = tokenRow.referenceIndex;
 891             } else {
 892                 destIndexEntry = Math.max(tokenRow.referenceIndex - 1, 0);
 893             }
 894         } else {
 895             // Down
 896             destIndexEntry = Math.min(tokenRow.referenceIndex + 1, index.sortedIndexEntries.size() - 1);
 897         }
 898         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 899         Log.d(LOG, "onUpDownButton, destIndexEntry=" + dest.token);
 900         setSearchText(dest.token, false);
 901         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 902         defocusSearchText();
 903     }
 904
 905     void onRandomWordButton() {
 906         int destIndexEntry = rand.nextInt(index.sortedIndexEntries.size());
 907         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 908         setSearchText(dest.token, false);
 909         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 910         defocusSearchText();
 911     }
 912
 913     // --------------------------------------------------------------------------
 914     // Options Menu
 915     // --------------------------------------------------------------------------
 916
 917     final Random random = new Random();
 918
 919     @Override
 920     public boolean onCreateOptionsMenu(final Menu menu) {
 921
 922         if (PreferenceManager.getDefaultSharedPreferences(this)
 923                 .getBoolean(getString(R.string.showPrevNextButtonsKey), true)) {
 924             // Next word.
 925             nextWordMenuItem = menu.add(getString(R.string.nextWord))
 926                     .setIcon(R.drawable.arrow_down_float);
 927             MenuItemCompat.setShowAsAction(nextWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
 928             nextWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 929                 @Override
 930                 public boolean onMenuItemClick(MenuItem item) {
 931                     onUpDownButton(false);
 932                     return true;
 933                 }
 934             });
 935
 936             // Previous word.
 937             previousWordMenuItem = menu.add(getString(R.string.previousWord))
 938                     .setIcon(R.drawable.arrow_up_float);
 939             MenuItemCompat.setShowAsAction(previousWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
 940             previousWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 941                 @Override
 942                 public boolean onMenuItemClick(MenuItem item) {
 943                     onUpDownButton(true);
 944                     return true;
 945                 }
 946             });
 947         }
 948
 949         randomWordMenuItem = menu.add(getString(R.string.randomWord));
 950         randomWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 951             @Override
 952             public boolean onMenuItemClick(MenuItem item) {
 953                 onRandomWordButton();
 954                 return true;
 955             }
 956         });
 957
 958         application.onCreateGlobalOptionsMenu(this, menu);
 959
 960         {
 961             final MenuItem dictionaryManager = menu.add(getString(R.string.dictionaryManager));
 962             MenuItemCompat.setShowAsAction(dictionaryManager, MenuItem.SHOW_AS_ACTION_NEVER);
 963             dictionaryManager.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 964                 public boolean onMenuItemClick(final MenuItem menuItem) {
 965                     startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 966                     finish();
 967                     return false;
 968                 }
 969             });
 970         }
 971
 972         {
 973             final MenuItem aboutDictionary = menu.add(getString(R.string.aboutDictionary));
 974             MenuItemCompat.setShowAsAction(aboutDictionary, MenuItem.SHOW_AS_ACTION_NEVER);
 975             aboutDictionary.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 976                 public boolean onMenuItemClick(final MenuItem menuItem) {
 977                     final Context context = getListView().getContext();
 978                     final Dialog dialog = new Dialog(context);
 979                     dialog.setContentView(R.layout.about_dictionary_dialog);
 980                     final TextView textView = (TextView) dialog.findViewById(R.id.text);
 981
 982                     final String name = application.getDictionaryName(dictFile.getName());
 983                     dialog.setTitle(name);
 984
 985                     final StringBuilder builder = new StringBuilder();
 986                     final DictionaryInfo dictionaryInfo = dictionary.getDictionaryInfo();
 987                     dictionaryInfo.uncompressedBytes = dictFile.length();
 988                     if (dictionaryInfo != null) {
 989                         builder.append(dictionaryInfo.dictInfo).append("\n\n");
 990                         builder.append(getString(R.string.dictionaryPath, dictFile.getPath()))
 991                                 .append("\n");
 992                         builder.append(
 993                                 getString(R.string.dictionarySize, dictionaryInfo.uncompressedBytes))
 994                                 .append("\n");
 995                         builder.append(
 996                                 getString(R.string.dictionaryCreationTime,
 997                                         dictionaryInfo.creationMillis)).append("\n");
 998                         for (final IndexInfo indexInfo : dictionaryInfo.indexInfos) {
 999                             builder.append("\n");
1000                             builder.append(getString(R.string.indexName, indexInfo.shortName))
1001                                     .append("\n");
1002                             builder.append(
1003                                     getString(R.string.mainTokenCount, indexInfo.mainTokenCount))
1004                                     .append("\n");
1005                         }
1006                         builder.append("\n");
1007                         builder.append(getString(R.string.sources)).append("\n");
1008                         for (final EntrySource source : dictionary.sources) {
1009                             builder.append(
1010                                     getString(R.string.sourceInfo, source.getName(),
1011                                             source.getNumEntries())).append("\n");
1012                         }
1013                     }
1014                     textView.setText(builder.toString());
1015
1016                     dialog.show();
1017                     final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
1018                     layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
1019                     layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
1020                     dialog.getWindow().setAttributes(layoutParams);
1021                     return false;
1022                 }
1023             });
1024         }
1025
1026         return true;
1027     }
1028
1029     // --------------------------------------------------------------------------
1030     // Context Menu + clicks
1031     // --------------------------------------------------------------------------
1032
1033     @Override
1034     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1035         AdapterContextMenuInfo adapterContextMenuInfo = (AdapterContextMenuInfo) menuInfo;
1036         final RowBase row = (RowBase) getListAdapter().getItem(adapterContextMenuInfo.position);
1037
1038         final android.view.MenuItem addToWordlist = menu.add(getString(R.string.addToWordList,
1039                 wordList.getName()));
1040         addToWordlist
1041                 .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1042                     public boolean onMenuItemClick(android.view.MenuItem item) {
1043                         onAppendToWordList(row);
1044                         return false;
1045                     }
1046                 });
1047
1048         final android.view.MenuItem share = menu.add("Share");
1049         share.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1050             public boolean onMenuItemClick(android.view.MenuItem item) {
1051                 Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
1052                 shareIntent.setType("text/plain");
1053                 shareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, row.getTokenRow(true)
1054                         .getToken());
1055                 shareIntent.putExtra(android.content.Intent.EXTRA_TEXT,
1056                         row.getRawText(saveOnlyFirstSubentry));
1057                 startActivity(shareIntent);
1058                 return false;
1059             }
1060         });
1061
1062         final android.view.MenuItem copy = menu.add(android.R.string.copy);
1063         copy.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1064             public boolean onMenuItemClick(android.view.MenuItem item) {
1065                 onCopy(row);
1066                 return false;
1067             }
1068         });
1069
1070         if (selectedSpannableText != null) {
1071             final String selectedText = selectedSpannableText;
1072             final android.view.MenuItem searchForSelection = menu.add(getString(
1073                     R.string.searchForSelection,
1074                     selectedSpannableText));
1075             searchForSelection
1076                     .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1077                         public boolean onMenuItemClick(android.view.MenuItem item) {
1078                             jumpToTextFromHyperLink(selectedText, selectedSpannableIndex);
1079                             return false;
1080                         }
1081                     });
1082             // Rats, this won't be shown:
1083             //searchForSelection.setIcon(R.drawable.abs__ic_search);
1084         }
1085
1086         if ((row instanceof TokenRow || selectedSpannableText != null) && ttsReady) {
1087             final android.view.MenuItem speak = menu.add(R.string.speak);
1088             final String textToSpeak = row instanceof TokenRow ? ((TokenRow) row).getToken() : selectedSpannableText;
1089             updateTTSLanguage(row instanceof TokenRow ? indexIndex : selectedSpannableIndex);
1090             speak.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1091                 @Override
1092                 public boolean onMenuItemClick(android.view.MenuItem item) {
1093                     textToSpeech.speak(textToSpeak, TextToSpeech.QUEUE_FLUSH,
1094                             new HashMap<String, String>());
1095                     return false;
1096                 }
1097             });
1098         }
1099     }
1100
1101     private void jumpToTextFromHyperLink(
1102             final String selectedText, final int defaultIndexToUse) {
1103         int indexToUse = -1;
1104         int numFound = 0;
1105         for (int i = 0; i < dictionary.indices.size(); ++i) {
1106             final Index index = dictionary.indices.get(i);
1107             if (indexPrepFinished) {
1108                 System.out.println("Doing index lookup: on " + selectedText);
1109                 final IndexEntry indexEntry = index.findExact(selectedText);
1110                 if (indexEntry != null) {
1111                     final TokenRow tokenRow = index.rows.get(indexEntry.startRow)
1112                             .getTokenRow(false);
1113                     if (tokenRow != null && tokenRow.hasMainEntry) {
1114                         indexToUse = i;
1115                         ++numFound;
1116                     }
1117                 }
1118             } else {
1119                 Log.w(LOG, "Skipping findExact on index " + index.shortName);
1120             }
1121         }
1122         if (numFound != 1 || indexToUse == -1) {
1123             indexToUse = defaultIndexToUse;
1124         }
1125         // Without this extra delay, the call to jumpToRow that this
1126         // invokes doesn't always actually have any effect.
1127         final int actualIndexToUse = indexToUse;
1128         getListView().postDelayed(new Runnable() {
1129             @Override
1130             public void run() {
1131                 setIndexAndSearchText(actualIndexToUse, selectedText, true);
1132             }
1133         }, 100);
1134     }
1135
1136     /**
1137      * Called when user clicks outside of search text, so that they can start
1138      * typing again immediately.
1139      */
1140     void defocusSearchText() {
1141         // Log.d(LOG, "defocusSearchText");
1142         // Request focus so that if we start typing again, it clears the text
1143         // input.
1144         getListView().requestFocus();
1145
1146         // Visual indication that a new keystroke will clear the search text.
1147         // Doesn't seem to work unless searchText has focus.
1148         // searchView.selectAll();
1149     }
1150
1151     protected void onListItemClick(ListView l, View v, int row, long id) {
1152         defocusSearchText();
1153         if (clickOpensContextMenu && dictRaf != null) {
1154             openContextMenu(v);
1155         }
1156     }
1157
1158     @SuppressLint("SimpleDateFormat")
1159     void onAppendToWordList(final RowBase row) {
1160         defocusSearchText();
1161
1162         final StringBuilder rawText = new StringBuilder();
1163         rawText.append(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(new Date())).append("\t");
1164         rawText.append(index.longName).append("\t");
1165         rawText.append(row.getTokenRow(true).getToken()).append("\t");
1166         rawText.append(row.getRawText(saveOnlyFirstSubentry));
1167         Log.d(LOG, "Writing : " + rawText);
1168
1169         try {
1170             wordList.getParentFile().mkdirs();
1171             final PrintWriter out = new PrintWriter(new FileWriter(wordList, true));
1172             out.println(rawText.toString());
1173             out.close();
1174         } catch (Exception e) {
1175             Log.e(LOG, "Unable to append to " + wordList.getAbsolutePath(), e);
1176             Toast.makeText(this,
1177                     getString(R.string.failedAddingToWordList, wordList.getAbsolutePath()),
1178                     Toast.LENGTH_LONG).show();
1179         }
1180         return;
1181     }
1182
1183     @SuppressWarnings("deprecation")
1184     void onCopy(final RowBase row) {
1185         defocusSearchText();
1186
1187         Log.d(LOG, "Copy, row=" + row);
1188         final StringBuilder result = new StringBuilder();
1189         result.append(row.getRawText(false));
1190         final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
1191         clipboardManager.setText(result.toString());
1192         Log.d(LOG, "Copied: " + result);
1193     }
1194
1195     @Override
1196     public boolean onKeyDown(final int keyCode, final KeyEvent event) {
1197         if (event.getUnicodeChar() != 0) {
1198             if (!searchView.hasFocus()) {
1199                 setSearchText("" + (char) event.getUnicodeChar(), true);
1200                 searchView.requestFocus();
1201             }
1202             return true;
1203         }
1204         if (keyCode == KeyEvent.KEYCODE_BACK) {
1205             // Log.d(LOG, "Clearing dictionary prefs.");
1206             // Pretend that we just autolaunched so that we won't do it again.
1207             // DictionaryManagerActivity.lastAutoLaunchMillis =
1208             // System.currentTimeMillis();
1209         }
1210         if (keyCode == KeyEvent.KEYCODE_ENTER) {
1211             Log.d(LOG, "Trying to hide soft keyboard.");
1212             final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
1213             View focus = getCurrentFocus();
1214             if (focus != null) {
1215                 inputManager.hideSoftInputFromWindow(focus.getWindowToken(),
1216                         InputMethodManager.HIDE_NOT_ALWAYS);
1217             }
1218             return true;
1219         }
1220         return super.onKeyDown(keyCode, event);
1221     }
1222
1223     private void setIndexAndSearchText(int newIndex, String newSearchText, boolean hideKeyboard) {
1224         Log.d(LOG, "Changing index to: " + newIndex);
1225         if (newIndex == -1) {
1226             Log.e(LOG, "Invalid index.");
1227             newIndex = 0;
1228         }
1229         if (newIndex != indexIndex) {
1230             indexIndex = newIndex;
1231             index = dictionary.indices.get(indexIndex);
1232             indexAdapter = new IndexAdapter(index);
1233             setListAdapter(indexAdapter);
1234             Log.d(LOG, "changingIndex, newLang=" + index.longName);
1235             setDictionaryPrefs(this, dictFile, index.shortName, searchView.getQuery().toString());
1236             updateLangButton();
1237         }
1238         setSearchText(newSearchText, true, hideKeyboard);
1239     }
1240
1241     private void setSearchText(final String text, final boolean triggerSearch, boolean hideKeyboard) {
1242         Log.d(LOG, "setSearchText, text=" + text + ", triggerSearch=" + triggerSearch);
1243         // Disable the listener, because sometimes it doesn't work.
1244         searchView.setOnQueryTextListener(null);
1245         searchView.setQuery(text, false);
1246         moveCursorToRight();
1247         searchView.setOnQueryTextListener(onQueryTextListener);
1248
1249         if (triggerSearch) {
1250             onSearchTextChange(text);
1251         }
1252
1253         // We don't want to show virtual keyboard when we're changing searchView text programatically:
1254         if (hideKeyboard) {
1255             hideKeyboard();
1256         }
1257     }
1258
1259     private void setSearchText(final String text, final boolean triggerSearch) {
1260         setSearchText(text, triggerSearch, true);
1261     }
1262
1263     // private long cursorDelayMillis = 100;
1264     private void moveCursorToRight() {
1265         // if (searchText.getLayout() != null) {
1266         // cursorDelayMillis = 100;
1267         // // Surprising, but this can crash when you rotate...
1268         // Selection.moveToRightEdge(searchView.getQuery(),
1269         // searchText.getLayout());
1270         // } else {
1271         // uiHandler.postDelayed(new Runnable() {
1272         // @Override
1273         // public void run() {
1274         // moveCursorToRight();
1275         // }
1276         // }, cursorDelayMillis);
1277         // cursorDelayMillis = Math.min(10 * 1000, 2 * cursorDelayMillis);
1278         // }
1279     }
1280
1281     // --------------------------------------------------------------------------
1282     // SearchOperation
1283     // --------------------------------------------------------------------------
1284
1285     private void searchFinished(final SearchOperation searchOperation) {
1286         if (searchOperation.interrupted.get()) {
1287             Log.d(LOG, "Search operation was interrupted: " + searchOperation);
1288             return;
1289         }
1290         if (searchOperation != this.currentSearchOperation) {
1291             Log.d(LOG, "Stale searchOperation finished: " + searchOperation);
1292             return;
1293         }
1294
1295         final Index.IndexEntry searchResult = searchOperation.searchResult;
1296         Log.d(LOG, "searchFinished: " + searchOperation + ", searchResult=" + searchResult);
1297
1298         currentSearchOperation = null;
1299         uiHandler.postDelayed(new Runnable() {
1300             @Override
1301             public void run() {
1302                 if (currentSearchOperation == null) {
1303                     if (searchResult != null) {
1304                         if (isFiltered()) {
1305                             clearFiltered();
1306                         }
1307                         jumpToRow(searchResult.startRow);
1308                     } else if (searchOperation.multiWordSearchResult != null) {
1309                         // Multi-row search....
1310                         setFiltered(searchOperation);
1311                     } else {
1312                         throw new IllegalStateException("This should never happen.");
1313                     }
1314                 } else {
1315                     Log.d(LOG, "More coming, waiting for currentSearchOperation.");
1316                 }
1317             }
1318         }, 20);
1319     }
1320
1321     private final void jumpToRow(final int row) {
1322         Log.d(LOG, "jumpToRow: " + row + ", refocusSearchText=" + false);
1323         // getListView().requestFocusFromTouch();
1324         getListView().setSelectionFromTop(row, 0);
1325         getListView().setSelected(true);
1326     }
1327
1328     static final Pattern WHITESPACE = Pattern.compile("\\s+");
1329
1330     final class SearchOperation implements Runnable {
1331
1332         final AtomicBoolean interrupted = new AtomicBoolean(false);
1333
1334         final String searchText;
1335
1336         List<String> searchTokens; // filled in for multiWord.
1337
1338         final Index index;
1339
1340         long searchStartMillis;
1341
1342         Index.IndexEntry searchResult;
1343
1344         List<RowBase> multiWordSearchResult;
1345
1346         boolean done = false;
1347
1348         SearchOperation(final String searchText, final Index index) {
1349             this.searchText = StringUtil.normalizeWhitespace(searchText);
1350             this.index = index;
1351         }
1352
1353         public String toString() {
1354             return String.format("SearchOperation(%s,%s)", searchText, interrupted.toString());
1355         }
1356
1357         @Override
1358         public void run() {
1359             try {
1360                 searchStartMillis = System.currentTimeMillis();
1361                 final String[] searchTokenArray = WHITESPACE.split(searchText);
1362                 if (searchTokenArray.length == 1) {
1363                     searchResult = index.findInsertionPoint(searchText, interrupted);
1364                 } else {
1365                     searchTokens = Arrays.asList(searchTokenArray);
1366                     multiWordSearchResult = index.multiWordSearch(searchText, searchTokens,
1367                             interrupted);
1368                 }
1369                 Log.d(LOG,
1370                         "searchText=" + searchText + ", searchDuration="
1371                                 + (System.currentTimeMillis() - searchStartMillis)
1372                                 + ", interrupted=" + interrupted.get());
1373                 if (!interrupted.get()) {
1374                     uiHandler.post(new Runnable() {
1375                         @Override
1376                         public void run() {
1377                             searchFinished(SearchOperation.this);
1378                         }
1379                     });
1380                 } else {
1381                     Log.d(LOG, "interrupted, skipping searchFinished.");
1382                 }
1383             } catch (Exception e) {
1384                 Log.e(LOG, "Failure during search (can happen during Activity close.");
1385             } finally {
1386                 synchronized (this) {
1387                     done = true;
1388                     this.notifyAll();
1389                 }
1390             }
1391         }
1392     }
1393
1394     // --------------------------------------------------------------------------
1395     // IndexAdapter
1396     // --------------------------------------------------------------------------
1397
1398     static ViewGroup.LayoutParams WEIGHT_1 = new LinearLayout.LayoutParams(
1399             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 1.0f);
1400
1401     static ViewGroup.LayoutParams WEIGHT_0 = new LinearLayout.LayoutParams(
1402             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 0.0f);
1403
1404     final class IndexAdapter extends BaseAdapter {
1405
1406         private static final float PADDING_DEFAULT_DP = 8;
1407
1408         private static final float PADDING_LARGE_DP = 16;
1409
1410         final Index index;
1411
1412         final List<RowBase> rows;
1413
1414         final Set<String> toHighlight;
1415
1416         private int mPaddingDefault;
1417
1418         private int mPaddingLarge;
1419
1420         IndexAdapter(final Index index) {
1421             this.index = index;
1422             rows = index.rows;
1423             this.toHighlight = null;
1424             getMetrics();
1425         }
1426
1427         IndexAdapter(final Index index, final List<RowBase> rows, final List<String> toHighlight) {
1428             this.index = index;
1429             this.rows = rows;
1430             this.toHighlight = new LinkedHashSet<String>(toHighlight);
1431             getMetrics();
1432         }
1433
1434         private void getMetrics() {
1435             // Get the screen's density scale
1436             final float scale = getResources().getDisplayMetrics().density;
1437             // Convert the dps to pixels, based on density scale
1438             mPaddingDefault = (int) (PADDING_DEFAULT_DP * scale + 0.5f);
1439             mPaddingLarge = (int) (PADDING_LARGE_DP * scale + 0.5f);
1440         }
1441
1442         @Override
1443         public int getCount() {
1444             return rows.size();
1445         }
1446
1447         @Override
1448         public RowBase getItem(int position) {
1449             return rows.get(position);
1450         }
1451
1452         @Override
1453         public long getItemId(int position) {
1454             return getItem(position).index();
1455         }
1456
1457         @Override
1458         public TableLayout getView(int position, View convertView, ViewGroup parent) {
1459             final TableLayout result;
1460             if (convertView instanceof TableLayout) {
1461                 result = (TableLayout) convertView;
1462                 result.removeAllViews();
1463             } else {
1464                 result = new TableLayout(parent.getContext());
1465             }
1466             final RowBase row = getItem(position);
1467             if (row instanceof PairEntry.Row) {
1468                 return getView(position, (PairEntry.Row) row, parent, result);
1469             } else if (row instanceof TokenRow) {
1470                 return getView((TokenRow) row, parent, result);
1471             } else if (row instanceof HtmlEntry.Row) {
1472                 return getView((HtmlEntry.Row) row, parent, result);
1473             } else {
1474                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1475             }
1476         }
1477
1478         private TableLayout getView(final int position, PairEntry.Row row, ViewGroup parent,
1479                 final TableLayout result) {
1480             final PairEntry entry = row.getEntry();
1481             final int rowCount = entry.pairs.size();
1482
1483             final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams();
1484             layoutParams.weight = 0.5f;
1485             layoutParams.leftMargin = mPaddingLarge;
1486
1487             for (int r = 0; r < rowCount; ++r) {
1488                 final TableRow tableRow = new TableRow(result.getContext());
1489
1490                 final TextView col1 = new TextView(tableRow.getContext());
1491                 final TextView col2 = new TextView(tableRow.getContext());
1492                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB)
1493                 {
1494                     col1.setTextIsSelectable(true);
1495                     col2.setTextIsSelectable(true);
1496                 }
1497
1498                 // Set the columns in the table.
1499                 if (r > 0) {
1500                     final TextView bullet = new TextView(tableRow.getContext());
1501                     bullet.setText(" • ");
1502                     tableRow.addView(bullet);
1503                 }
1504                 tableRow.addView(col1, layoutParams);
1505                 final TextView margin = new TextView(tableRow.getContext());
1506                 margin.setText(" ");
1507                 tableRow.addView(margin);
1508                 if (r > 0) {
1509                     final TextView bullet = new TextView(tableRow.getContext());
1510                     bullet.setText(" • ");
1511                     tableRow.addView(bullet);
1512                 }
1513                 tableRow.addView(col2, layoutParams);
1514                 col1.setWidth(1);
1515                 col2.setWidth(1);
1516
1517                 // Set what's in the columns.
1518
1519                 final Pair pair = entry.pairs.get(r);
1520                 final String col1Text = index.swapPairEntries ? pair.lang2 : pair.lang1;
1521                 final String col2Text = index.swapPairEntries ? pair.lang1 : pair.lang2;
1522
1523                 col1.setText(col1Text, TextView.BufferType.SPANNABLE);
1524                 col2.setText(col2Text, TextView.BufferType.SPANNABLE);
1525
1526                 // Bold the token instances in col1.
1527                 final Set<String> toBold = toHighlight != null ? this.toHighlight : Collections
1528                         .singleton(row.getTokenRow(true).getToken());
1529                 final Spannable col1Spannable = (Spannable) col1.getText();
1530                 for (final String token : toBold) {
1531                     int startPos = 0;
1532                     while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
1533                         col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos, startPos
1534                                 + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1535                         startPos += token.length();
1536                     }
1537                 }
1538
1539                 createTokenLinkSpans(col1, col1Spannable, col1Text);
1540                 createTokenLinkSpans(col2, (Spannable) col2.getText(), col2Text);
1541
1542                 col1.setTypeface(typeface);
1543                 col2.setTypeface(typeface);
1544                 col1.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1545                 col2.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1546                 // col2.setBackgroundResource(theme.otherLangBg);
1547
1548                 if (index.swapPairEntries) {
1549                     col2.setOnLongClickListener(textViewLongClickListenerIndex0);
1550                     col1.setOnLongClickListener(textViewLongClickListenerIndex1);
1551                 } else {
1552                     col1.setOnLongClickListener(textViewLongClickListenerIndex0);
1553                     col2.setOnLongClickListener(textViewLongClickListenerIndex1);
1554                 }
1555
1556                 result.addView(tableRow);
1557             }
1558
1559             // Because we have a Button inside a ListView row:
1560             // http://groups.google.com/group/android-developers/browse_thread/thread/3d96af1530a7d62a?pli=1
1561             result.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
1562             result.setClickable(true);
1563             result.setFocusable(true);
1564             result.setLongClickable(true);
1565 //            result.setBackgroundResource(android.R.drawable.menuitem_background);
1566
1567             result.setBackgroundResource(theme.normalRowBg);
1568
1569             result.setOnClickListener(new TextView.OnClickListener() {
1570                 @Override
1571                 public void onClick(View v) {
1572                     DictionaryActivity.this.onListItemClick(getListView(), v, position, position);
1573                 }
1574             });
1575
1576             return result;
1577         }
1578
1579         private TableLayout getPossibleLinkToHtmlEntryView(final boolean isTokenRow,
1580                 final String text, final boolean hasMainEntry, final List<HtmlEntry> htmlEntries,
1581                 final String htmlTextToHighlight, ViewGroup parent, final TableLayout result) {
1582             final Context context = parent.getContext();
1583
1584             final TableRow tableRow = new TableRow(result.getContext());
1585             tableRow.setBackgroundResource(hasMainEntry ? theme.tokenRowMainBg
1586                     : theme.tokenRowOtherBg);
1587             if (isTokenRow) {
1588                 tableRow.setPadding(mPaddingDefault, mPaddingDefault, mPaddingDefault, 0);
1589             } else {
1590                 tableRow.setPadding(mPaddingLarge, mPaddingDefault, mPaddingDefault, 0);
1591             }
1592             result.addView(tableRow);
1593
1594             // Make it so we can long-click on these token rows, too:
1595             final TextView textView = new TextView(context);
1596             textView.setText(text, BufferType.SPANNABLE);
1597             createTokenLinkSpans(textView, (Spannable) textView.getText(), text);
1598             textView.setOnLongClickListener(indexIndex > 0 ? textViewLongClickListenerIndex1 : textViewLongClickListenerIndex0);
1599             result.setLongClickable(true);
1600
1601             // Doesn't work:
1602             // textView.setTextColor(android.R.color.secondary_text_light);
1603             textView.setTypeface(typeface);
1604             TableRow.LayoutParams lp = new TableRow.LayoutParams(0);
1605             if (isTokenRow) {
1606                 textView.setTextAppearance(context, theme.tokenRowFg);
1607                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 4 * fontSizeSp / 3);
1608             } else {
1609                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1610             }
1611             lp.weight = 1.0f;
1612
1613             textView.setLayoutParams(lp);
1614             tableRow.addView(textView);
1615
1616             if (!htmlEntries.isEmpty()) {
1617                 final ClickableSpan clickableSpan = new ClickableSpan() {
1618                     @Override
1619                     public void onClick(View widget) {
1620                     }
1621                 };
1622                 ((Spannable) textView.getText()).setSpan(clickableSpan, 0, text.length(),
1623                         Spannable.SPAN_INCLUSIVE_INCLUSIVE);
1624                 result.setClickable(true);
1625                 textView.setClickable(true);
1626                 textView.setMovementMethod(LinkMovementMethod.getInstance());
1627                 textView.setOnClickListener(new OnClickListener() {
1628                     @Override
1629                     public void onClick(View v) {
1630                         String html = HtmlEntry.htmlBody(htmlEntries, index.shortName);
1631                         // Log.d(LOG, "html=" + html);
1632                         startActivityForResult(
1633                                 HtmlDisplayActivity.getHtmlIntent(getApplicationContext(), String.format(
1634                                         "<html><head></head><body>%s</body></html>", html),
1635                                         htmlTextToHighlight, false),
1636                                 0);
1637                     }
1638                 });
1639             }
1640             return result;
1641         }
1642
1643         private TableLayout getView(TokenRow row, ViewGroup parent, final TableLayout result) {
1644             final IndexEntry indexEntry = row.getIndexEntry();
1645             return getPossibleLinkToHtmlEntryView(true, indexEntry.token, row.hasMainEntry,
1646                     indexEntry.htmlEntries, null, parent, result);
1647         }
1648
1649         private TableLayout getView(HtmlEntry.Row row, ViewGroup parent, final TableLayout result) {
1650             final HtmlEntry htmlEntry = row.getEntry();
1651             final TokenRow tokenRow = row.getTokenRow(true);
1652             return getPossibleLinkToHtmlEntryView(false,
1653                     getString(R.string.seeAlso, htmlEntry.title, htmlEntry.entrySource.getName()),
1654                     false, Collections.singletonList(htmlEntry), tokenRow.getToken(), parent,
1655                     result);
1656         }
1657
1658     }
1659
1660     static final Pattern CHAR_DASH = Pattern.compile("['\\p{L}\\p{M}\\p{N}]+");
1661
1662     private void createTokenLinkSpans(final TextView textView, final Spannable spannable,
1663             final String text) {
1664         // Saw from the source code that LinkMovementMethod sets the selection!
1665         // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.1_r1/android/text/method/LinkMovementMethod.java#LinkMovementMethod
1666         textView.setMovementMethod(LinkMovementMethod.getInstance());
1667         final Matcher matcher = CHAR_DASH.matcher(text);
1668         while (matcher.find()) {
1669             spannable.setSpan(new NonLinkClickableSpan(textColorFg), matcher.start(),
1670                     matcher.end(),
1671                     Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1672         }
1673     }
1674
1675     String selectedSpannableText = null;
1676
1677     int selectedSpannableIndex = -1;
1678
1679     @Override
1680     public boolean onTouchEvent(MotionEvent event) {
1681         selectedSpannableText = null;
1682         selectedSpannableIndex = -1;
1683         return super.onTouchEvent(event);
1684     }
1685
1686     private class TextViewLongClickListener implements OnLongClickListener {
1687         final int index;
1688
1689         private TextViewLongClickListener(final int index) {
1690             this.index = index;
1691         }
1692
1693         @Override
1694         public boolean onLongClick(final View v) {
1695             final TextView textView = (TextView) v;
1696             final int start = textView.getSelectionStart();
1697             final int end = textView.getSelectionEnd();
1698             if (start >= 0 && end >= 0) {
1699                 selectedSpannableText = textView.getText().subSequence(start, end).toString();
1700                 selectedSpannableIndex = index;
1701             }
1702             return false;
1703         }
1704     }
1705
1706     final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1707             0);
1708
1709     final TextViewLongClickListener textViewLongClickListenerIndex1 = new TextViewLongClickListener(
1710             1);
1711
1712     // --------------------------------------------------------------------------
1713     // SearchText
1714     // --------------------------------------------------------------------------
1715
1716     void onSearchTextChange(final String text) {
1717         if ("thadolina".equals(text)) {
1718             final Dialog dialog = new Dialog(getListView().getContext());
1719             dialog.setContentView(R.layout.thadolina_dialog);
1720             dialog.setTitle("Ti amo, amore mio!");
1721             final ImageView imageView = (ImageView) dialog.findViewById(R.id.thadolina_image);
1722             imageView.setOnClickListener(new OnClickListener() {
1723                 @Override
1724                 public void onClick(View v) {
1725                     final Intent intent = new Intent(Intent.ACTION_VIEW);
1726                     intent.setData(Uri.parse("https://sites.google.com/site/cfoxroxvday/vday2012"));
1727                     startActivity(intent);
1728                 }
1729             });
1730             dialog.show();
1731         }
1732         if (dictRaf == null) {
1733             Log.d(LOG, "searchText changed during shutdown, doing nothing.");
1734             return;
1735         }
1736
1737         // if (!searchView.hasFocus()) {
1738         // Log.d(LOG, "searchText changed without focus, doing nothing.");
1739         // return;
1740         // }
1741         Log.d(LOG, "onSearchTextChange: " + text);
1742         if (currentSearchOperation != null) {
1743             Log.d(LOG, "Interrupting currentSearchOperation.");
1744             currentSearchOperation.interrupted.set(true);
1745         }
1746         currentSearchOperation = new SearchOperation(text, index);
1747         searchExecutor.execute(currentSearchOperation);
1748         ((FloatingActionButton)findViewById(R.id.floatSearchButton)).setImageResource(text.length() > 0 ? R.drawable.ic_clear_black_24dp : R.drawable.ic_search_black_24dp);
1749     }
1750
1751     // --------------------------------------------------------------------------
1752     // Filtered results.
1753     // --------------------------------------------------------------------------
1754
1755     boolean isFiltered() {
1756         return rowsToShow != null;
1757     }
1758
1759     void setFiltered(final SearchOperation searchOperation) {
1760         if (nextWordMenuItem != null) {
1761             nextWordMenuItem.setEnabled(false);
1762             previousWordMenuItem.setEnabled(false);
1763         }
1764         rowsToShow = searchOperation.multiWordSearchResult;
1765         setListAdapter(new IndexAdapter(index, rowsToShow, searchOperation.searchTokens));
1766     }
1767
1768     void clearFiltered() {
1769         if (nextWordMenuItem != null) {
1770             nextWordMenuItem.setEnabled(true);
1771             previousWordMenuItem.setEnabled(true);
1772         }
1773         setListAdapter(new IndexAdapter(index));
1774         rowsToShow = null;
1775     }
1776
1777 }