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.content.pm.PackageManager;
  24 import android.database.Cursor;
  25 import android.database.MatrixCursor;
  26 import android.graphics.Color;
  27 import android.graphics.Typeface;
  28 import android.net.Uri;
  29 import android.os.Bundle;
  30 import android.os.Handler;
  31 import android.support.v7.preference.PreferenceManager;
  32 import android.speech.tts.TextToSpeech;
  33 import android.speech.tts.TextToSpeech.OnInitListener;
  34 import android.support.annotation.NonNull;
  35 import android.support.design.widget.FloatingActionButton;
  36 import android.support.v4.view.MenuItemCompat;
  37 import android.support.v4.widget.CursorAdapter;
  38 import android.support.v7.app.ActionBar;
  39 import android.support.v7.app.AppCompatActivity;
  40 import android.support.v7.widget.SearchView;
  41 import android.support.v7.widget.SearchView.OnQueryTextListener;
  42 import android.support.v7.widget.Toolbar;
  43 import android.text.ClipboardManager;
  44 import android.text.InputType;
  45 import android.text.Spannable;
  46 import android.text.SpannableString;
  47 import android.text.method.LinkMovementMethod;
  48 import android.text.style.ClickableSpan;
  49 import android.text.style.StyleSpan;
  50 import android.util.DisplayMetrics;
  51 import android.util.Log;
  52 import android.util.TypedValue;
  53 import android.view.ContextMenu;
  54 import android.view.ContextMenu.ContextMenuInfo;
  55 import android.view.Gravity;
  56 import android.view.KeyEvent;
  57 import android.view.Menu;
  58 import android.view.MenuItem;
  59 import android.view.MenuItem.OnMenuItemClickListener;
  60 import android.view.MotionEvent;
  61 import android.view.View;
  62 import android.view.View.OnClickListener;
  63 import android.view.View.OnLongClickListener;
  64 import android.view.ViewGroup;
  65 import android.view.WindowManager;
  66 import android.view.inputmethod.EditorInfo;
  67 import android.view.inputmethod.InputMethodManager;
  68 import android.widget.AdapterView;
  69 import android.widget.AdapterView.AdapterContextMenuInfo;
  70 import android.widget.AdapterView.OnItemClickListener;
  71 import android.widget.AutoCompleteTextView;
  72 import android.widget.BaseAdapter;
  73 import android.widget.Button;
  74 import android.widget.FrameLayout;
  75 import android.widget.ImageButton;
  76 import android.widget.ImageView;
  77 import android.widget.ImageView.ScaleType;
  78 import android.widget.LinearLayout;
  79 import android.widget.ListAdapter;
  80 import android.widget.ListView;
  81 import android.widget.TableLayout;
  82 import android.widget.TableRow;
  83 import android.widget.TextView;
  84 import android.widget.Toast;
  85
  86 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  87 import com.hughes.android.dictionary.engine.Dictionary;
  88 import com.hughes.android.dictionary.engine.EntrySource;
  89 import com.hughes.android.dictionary.engine.HtmlEntry;
  90 import com.hughes.android.dictionary.engine.Index;
  91 import com.hughes.android.dictionary.engine.Index.IndexEntry;
  92 import com.hughes.android.dictionary.engine.PairEntry;
  93 import com.hughes.android.dictionary.engine.PairEntry.Pair;
  94 import com.hughes.android.dictionary.engine.RowBase;
  95 import com.hughes.android.dictionary.engine.TokenRow;
  96 import com.hughes.android.dictionary.engine.TransliteratorManager;
  97 import com.hughes.android.util.IntentLauncher;
  98 import com.hughes.android.util.NonLinkClickableSpan;
  99 import com.hughes.util.StringUtil;
 100
 101 import java.io.File;
 102 import java.io.FileWriter;
 103 import java.io.IOException;
 104 import java.io.PrintWriter;
 105 import java.io.RandomAccessFile;
 106 import java.nio.channels.FileChannel;
 107 import java.text.SimpleDateFormat;
 108 import java.util.ArrayList;
 109 import java.util.Arrays;
 110 import java.util.Collections;
 111 import java.util.Date;
 112 import java.util.LinkedHashSet;
 113 import java.util.List;
 114 import java.util.Locale;
 115 import java.util.Random;
 116 import java.util.Set;
 117 import java.util.concurrent.ExecutorService;
 118 import java.util.concurrent.Executors;
 119 import java.util.concurrent.ThreadFactory;
 120 import java.util.concurrent.atomic.AtomicBoolean;
 121 import java.util.regex.Matcher;
 122 import java.util.regex.Pattern;
 123
 124 public class DictionaryActivity extends AppCompatActivity {
 125
 126     private static final String LOG = "QuickDic";
 127
 128     private DictionaryApplication application;
 129
 130     private File dictFile = null;
 131     private FileChannel dictRaf = null;
 132     private String dictFileTitleName = null;
 133
 134     private Dictionary dictionary = null;
 135
 136     private int indexIndex = 0;
 137
 138     private Index index = null;
 139
 140     private List<RowBase> rowsToShow = null; // if not null, just show these rows.
 141
 142     private final Random rand = new Random();
 143
 144     private final Handler uiHandler = new Handler();
 145
 146     private final ExecutorService searchExecutor = Executors.newSingleThreadExecutor(new ThreadFactory() {
 147         @Override
 148         public Thread newThread(@NonNull Runnable r) {
 149             return new Thread(r, "searchExecutor");
 150         }
 151     });
 152
 153     private SearchOperation currentSearchOperation = null;
 154     private final int MAX_SEARCH_HISTORY = 10;
 155     private final ArrayList<String> searchHistory = new ArrayList<>(MAX_SEARCH_HISTORY);
 156     private MatrixCursor searchHistoryCursor = new MatrixCursor(new String[] {"_id", "search"});
 157
 158     private TextToSpeech textToSpeech;
 159     private volatile boolean ttsReady;
 160
 161     private Typeface typeface;
 162     private DictionaryApplication.Theme theme = DictionaryApplication.Theme.LIGHT;
 163     private int textColorFg = Color.BLACK;
 164     private int fontSizeSp;
 165
 166     private ListView listView;
 167     private ListView getListView() {
 168         if (listView == null) {
 169             listView = (ListView)findViewById(android.R.id.list);
 170         }
 171         return listView;
 172     }
 173
 174     private void setListAdapter(ListAdapter adapter) {
 175         getListView().setAdapter(adapter);
 176     }
 177
 178     private ListAdapter getListAdapter() {
 179         return getListView().getAdapter();
 180     }
 181
 182     private SearchView searchView;
 183     private AutoCompleteTextView searchTextView;
 184     private ImageButton languageButton;
 185     private SearchView.OnQueryTextListener onQueryTextListener;
 186
 187     private MenuItem nextWordMenuItem;
 188     private MenuItem previousWordMenuItem;
 189
 190     // Never null.
 191     private File wordList = null;
 192     private boolean saveOnlyFirstSubentry = false;
 193     private boolean clickOpensContextMenu = false;
 194
 195     // Visible for testing.
 196     private ListAdapter indexAdapter = null;
 197
 198     /**
 199      * For some languages, loading the transliterators used in this search takes
 200      * a long time, so we fire it up on a different thread, and don't invoke it
 201      * from the main thread until it's already finished once.
 202      */
 203     private volatile boolean indexPrepFinished = false;
 204
 205     public DictionaryActivity() {
 206     }
 207
 208     public static Intent getLaunchIntent(Context c, final File dictFile, final String indexShortName,
 209                                          final String searchToken) {
 210         final Intent intent = new Intent(c, DictionaryActivity.class);
 211         intent.putExtra(C.DICT_FILE, dictFile.getPath());
 212         intent.putExtra(C.INDEX_SHORT_NAME, indexShortName);
 213         intent.putExtra(C.SEARCH_TOKEN, searchToken);
 214         intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
 215         return intent;
 216     }
 217
 218     @Override
 219     protected void onSaveInstanceState(final Bundle outState) {
 220         super.onSaveInstanceState(outState);
 221         Log.d(LOG, "onSaveInstanceState: " + searchView.getQuery().toString());
 222         outState.putString(C.INDEX_SHORT_NAME, index.shortName);
 223         outState.putString(C.SEARCH_TOKEN, searchView.getQuery().toString());
 224         outState.putStringArrayList(C.SEARCH_HISTORY, searchHistory);
 225     }
 226
 227     private int getMatchLen(String search, Index.IndexEntry e) {
 228         if (e == null) return 0;
 229         for (int i = 0; i < search.length(); ++i) {
 230             String a = search.substring(0, i + 1);
 231             String b = e.token.substring(0, i + 1);
 232             if (!a.equalsIgnoreCase(b))
 233                 return i;
 234         }
 235         return search.length();
 236     }
 237
 238     private void dictionaryOpenFail(Exception e) {
 239         Log.e(LOG, "Unable to load dictionary.", e);
 240         if (dictRaf != null) {
 241             indexAdapter = null;
 242             setListAdapter(null);
 243             try {
 244                 dictRaf.close();
 245             } catch (IOException e1) {
 246                 Log.e(LOG, "Unable to close dictRaf.", e1);
 247             }
 248             dictRaf = null;
 249         }
 250         if (!isFinishing())
 251             Toast.makeText(this, getString(R.string.invalidDictionary, "", e.getMessage()),
 252                            Toast.LENGTH_LONG).show();
 253         startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 254         finish();
 255     }
 256
 257     private void saveSearchHistory() {
 258         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 259         final SharedPreferences.Editor ed = prefs.edit();
 260         for (int i = 0; i < searchHistory.size(); i++) {
 261             ed.putString("history" + i, searchHistory.get(i));
 262         }
 263         ed.remove("history" + searchHistory.size());
 264         ed.apply();
 265     }
 266
 267     private void addToSearchHistory() {
 268         addToSearchHistory(searchView.getQuery().toString());
 269     }
 270
 271     private void addToSearchHistory(String text) {
 272         if (text == null || text.isEmpty()) return;
 273         int exists = searchHistory.indexOf(text);
 274         if (exists >= 0) searchHistory.remove(exists);
 275         else if (searchHistory.size() >= MAX_SEARCH_HISTORY) searchHistory.remove(searchHistory.size() - 1);
 276         searchHistory.add(0, text);
 277         searchHistoryCursor = new MatrixCursor(new String[] {"_id", "search"});
 278         for (int i = 0; i < searchHistory.size(); i++) {
 279             final Object[] row = {i, searchHistory.get(i)};
 280             searchHistoryCursor.addRow(row);
 281         }
 282         if (searchView.getSuggestionsAdapter().getCursor() != null) {
 283             searchView.getSuggestionsAdapter().swapCursor(searchHistoryCursor);
 284             searchView.getSuggestionsAdapter().notifyDataSetChanged();
 285         }
 286     }
 287
 288     @Override
 289     public void onCreate(Bundle savedInstanceState) {
 290         DictionaryApplication.INSTANCE.init(getApplicationContext());
 291         application = DictionaryApplication.INSTANCE;
 292         // This needs to be before super.onCreate, otherwise ActionbarSherlock
 293         // doesn't makes the background of the actionbar white when you're
 294         // in the dark theme.
 295         setTheme(application.getSelectedTheme().themeId);
 296
 297         Log.d(LOG, "onCreate:" + this);
 298         super.onCreate(savedInstanceState);
 299
 300         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 301
 302         // Don't auto-launch if this fails.
 303         prefs.edit().remove(C.DICT_FILE).remove(C.INDEX_SHORT_NAME).commit();
 304
 305         setContentView(R.layout.dictionary_activity);
 306
 307         theme = application.getSelectedTheme();
 308         textColorFg = getResources().getColor(theme.tokenRowFgColor);
 309
 310         if (dictRaf != null) {
 311             try {
 312                 dictRaf.close();
 313             } catch (IOException e) {
 314                 Log.e(LOG, "Failed to close dictionary", e);
 315             }
 316             dictRaf = null;
 317         }
 318
 319         final Intent intent = getIntent();
 320         String intentAction = intent.getAction();
 321         /*
 322           @author Dominik Köppl Querying the Intent
 323          *         com.hughes.action.ACTION_SEARCH_DICT is the advanced query
 324          *         Arguments: SearchManager.QUERY -> the phrase to search from
 325          *         -> language in which the phrase is written to -> to which
 326          *         language shall be translated
 327          */
 328         if ("com.hughes.action.ACTION_SEARCH_DICT".equals(intentAction)) {
 329             String query = intent.getStringExtra(SearchManager.QUERY);
 330             String from = intent.getStringExtra("from");
 331             if (from != null)
 332                 from = from.toLowerCase(Locale.US);
 333             String to = intent.getStringExtra("to");
 334             if (to != null)
 335                 to = to.toLowerCase(Locale.US);
 336             if (query != null) {
 337                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 338             }
 339             if (intent.getStringExtra(C.DICT_FILE) == null && (from != null || to != null)) {
 340                 Log.d(LOG, "DictSearch: from: " + from + " to " + to);
 341                 List<DictionaryInfo> dicts = application.getDictionariesOnDevice(null);
 342                 for (DictionaryInfo info : dicts) {
 343                     boolean hasFrom = from == null;
 344                     boolean hasTo = to == null;
 345                     for (IndexInfo index : info.indexInfos) {
 346                         if (!hasFrom && index.shortName.toLowerCase(Locale.US).equals(from))
 347                             hasFrom = true;
 348                         if (!hasTo && index.shortName.toLowerCase(Locale.US).equals(to))
 349                             hasTo = true;
 350                     }
 351                     if (hasFrom && hasTo) {
 352                         if (from != null) {
 353                             int which_index = 0;
 354                             for (; which_index < info.indexInfos.size(); ++which_index) {
 355                                 if (info.indexInfos.get(which_index).shortName.toLowerCase(
 356                                             Locale.US).equals(from))
 357                                     break;
 358                             }
 359                             intent.putExtra(C.INDEX_SHORT_NAME,
 360                                             info.indexInfos.get(which_index).shortName);
 361
 362                         }
 363                         intent.putExtra(C.DICT_FILE, application.getPath(info.uncompressedFilename)
 364                                         .toString());
 365                         break;
 366                     }
 367                 }
 368
 369             }
 370         }
 371         /*
 372           @author Dominik Köppl Querying the Intent Intent.ACTION_SEARCH is a
 373          *         simple query Arguments follow from android standard (see
 374          *         documentation)
 375          */
 376         if (intentAction != null && intentAction.equals(Intent.ACTION_SEARCH)) {
 377             String query = intent.getStringExtra(SearchManager.QUERY);
 378             if (query != null)
 379                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 380         }
 381         if (intentAction != null && intentAction.equals(Intent.ACTION_SEND)) {
 382             String query = intent.getStringExtra(Intent.EXTRA_TEXT);
 383             if (query != null)
 384                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 385         }
 386         /*
 387          * This processes text on M+ devices where QuickDic shows up in the context menu.
 388          */
 389         if (intentAction != null && intentAction.equals(Intent.ACTION_PROCESS_TEXT)) {
 390             String query = intent.getStringExtra(Intent.EXTRA_PROCESS_TEXT);
 391             if (query != null) {
 392                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 393             }
 394         }
 395         // Support opening dictionary file directly
 396         if (intentAction != null && intentAction.equals(Intent.ACTION_VIEW)) {
 397             Uri uri = intent.getData();
 398             intent.putExtra(C.DICT_FILE, uri.toString());
 399             dictFileTitleName = uri.getLastPathSegment();
 400             try {
 401                 dictRaf = getContentResolver().openAssetFileDescriptor(uri, "r").createInputStream().getChannel();
 402             } catch (Exception e) {
 403                 dictionaryOpenFail(e);
 404                 return;
 405             }
 406         }
 407         /*
 408           @author Dominik Köppl If no dictionary is chosen, use the default
 409          *         dictionary specified in the preferences If this step does
 410          *         fail (no default dictionary specified), show a toast and
 411          *         abort.
 412          */
 413         if (intent.getStringExtra(C.DICT_FILE) == null) {
 414             String dictfile = prefs.getString(getString(R.string.defaultDicKey), null);
 415             if (dictfile != null)
 416                 intent.putExtra(C.DICT_FILE, application.getPath(dictfile).toString());
 417         }
 418         String dictFilename = intent.getStringExtra(C.DICT_FILE);
 419         if (dictFilename == null && intent.getStringExtra(C.SEARCH_TOKEN) != null) {
 420             final List<DictionaryInfo> dics = application.getDictionariesOnDevice(null);
 421             final String search = intent.getStringExtra(C.SEARCH_TOKEN);
 422             String bestFname = null;
 423             String bestIndex = null;
 424             int bestMatchLen = 2; // ignore shorter matches
 425             AtomicBoolean dummy = new AtomicBoolean();
 426             for (int i = 0; dictFilename == null && i < dics.size(); ++i) {
 427                 try {
 428                     Log.d(LOG, "Checking dictionary " + dics.get(i).uncompressedFilename);
 429                     final File dictfile = application.getPath(dics.get(i).uncompressedFilename);
 430                     Dictionary dic = new Dictionary(new RandomAccessFile(dictfile, "r").getChannel());
 431                     for (int j = 0; j < dic.indices.size(); ++j) {
 432                         Index idx = dic.indices.get(j);
 433                         Log.d(LOG, "Checking index " + idx.shortName);
 434                         if (idx.findExact(search) != null) {
 435                             Log.d(LOG, "Found exact match");
 436                             dictFilename = dictfile.toString();
 437                             intent.putExtra(C.INDEX_SHORT_NAME, idx.shortName);
 438                             break;
 439                         }
 440                         int matchLen = getMatchLen(search, idx.findInsertionPoint(search, dummy));
 441                         Log.d(LOG, "Found partial match length " + matchLen);
 442                         if (matchLen > bestMatchLen) {
 443                             bestFname = dictfile.toString();
 444                             bestIndex = idx.shortName;
 445                             bestMatchLen = matchLen;
 446                         }
 447                     }
 448                 } catch (Exception e) {}
 449             }
 450             if (dictFilename == null && bestFname != null) {
 451                 dictFilename = bestFname;
 452                 intent.putExtra(C.INDEX_SHORT_NAME, bestIndex);
 453             }
 454         }
 455
 456         if (dictFilename == null) {
 457             if (!isFinishing())
 458                 Toast.makeText(this, getString(R.string.no_dict_file), Toast.LENGTH_LONG).show();
 459             startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 460             finish();
 461             return;
 462         }
 463         if (dictRaf == null)
 464             dictFile = new File(dictFilename);
 465
 466         ttsReady = false;
 467         textToSpeech = new TextToSpeech(getApplicationContext(), new OnInitListener() {
 468             @Override
 469             public void onInit(int status) {
 470                 ttsReady = true;
 471                 updateTTSLanguage(indexIndex);
 472             }
 473         });
 474
 475         try {
 476             if (dictRaf == null) {
 477                 dictFileTitleName = application.getDictionaryName(dictFile.getName());
 478                 dictRaf = new RandomAccessFile(dictFile, "r").getChannel();
 479             }
 480             this.setTitle("QuickDic: " + dictFileTitleName);
 481             dictionary = new Dictionary(dictRaf);
 482         } catch (Exception e) {
 483             dictionaryOpenFail(e);
 484             return;
 485         }
 486         String targetIndex = intent.getStringExtra(C.INDEX_SHORT_NAME);
 487         if (savedInstanceState != null && savedInstanceState.getString(C.INDEX_SHORT_NAME) != null) {
 488             targetIndex = savedInstanceState.getString(C.INDEX_SHORT_NAME);
 489         }
 490         indexIndex = 0;
 491         for (int i = 0; i < dictionary.indices.size(); ++i) {
 492             if (dictionary.indices.get(i).shortName.equals(targetIndex)) {
 493                 indexIndex = i;
 494                 break;
 495             }
 496         }
 497         Log.d(LOG, "Loading index " + indexIndex);
 498         index = dictionary.indices.get(indexIndex);
 499         getListView().setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
 500         getListView().setEmptyView(findViewById(android.R.id.empty));
 501         getListView().setOnItemClickListener(new OnItemClickListener() {
 502             @Override
 503             public void onItemClick(AdapterView<?> parent, View view, int row, long id) {
 504                 onListItemClick(getListView(), view, row, id);
 505             }
 506         });
 507
 508         setListAdapter(new IndexAdapter(index));
 509
 510         // Pre-load the Transliterator (will spawn its own thread)
 511         TransliteratorManager.init(new TransliteratorManager.Callback() {
 512             @Override
 513             public void onTransliteratorReady() {
 514                 uiHandler.post(new Runnable() {
 515                     @Override
 516                     public void run() {
 517                         onSearchTextChange(searchView.getQuery().toString());
 518                     }
 519                 });
 520             }
 521         }, DictionaryApplication.threadBackground);
 522
 523         // Pre-load the collators.
 524         new Thread(new Runnable() {
 525             public void run() {
 526                 android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_LESS_FAVORABLE);
 527                 final long startMillis = System.currentTimeMillis();
 528                 try {
 529                     for (final Index index : dictionary.indices) {
 530                         final String searchToken = index.sortedIndexEntries.get(0).token;
 531                         final IndexEntry entry = index.findExact(searchToken);
 532                         if (entry == null || !searchToken.equals(entry.token)) {
 533                             Log.e(LOG, "Couldn't find token: " + searchToken + ", " + (entry == null ? "null" : entry.token));
 534                         }
 535                     }
 536                     indexPrepFinished = true;
 537                 } catch (Exception e) {
 538                     Log.w(LOG,
 539                           "Exception while prepping.  This can happen if dictionary is closed while search is happening.");
 540                 }
 541                 Log.d(LOG, "Prepping indices took:" + (System.currentTimeMillis() - startMillis));
 542             }
 543         }).start();
 544
 545         String fontName = prefs.getString(getString(R.string.fontKey), "FreeSerif.otf.jpg");
 546         switch (fontName) {
 547             case "SYSTEM":
 548                 typeface = Typeface.DEFAULT;
 549                 break;
 550             case "SERIF":
 551                 typeface = Typeface.SERIF;
 552                 break;
 553             case "SANS_SERIF":
 554                 typeface = Typeface.SANS_SERIF;
 555                 break;
 556             case "MONOSPACE":
 557                 typeface = Typeface.MONOSPACE;
 558                 break;
 559             default:
 560                 if ("FreeSerif.ttf.jpg".equals(fontName)) {
 561                     fontName = "FreeSerif.otf.jpg";
 562                 }
 563                 try {
 564                     typeface = Typeface.createFromAsset(getAssets(), fontName);
 565                 } catch (Exception e) {
 566                     Log.w(LOG, "Exception trying to use typeface, using default.", e);
 567                     if (!isFinishing())
 568                         Toast.makeText(this, getString(R.string.fontFailure, e.getLocalizedMessage()),
 569                                 Toast.LENGTH_LONG).show();
 570                 }
 571                 break;
 572         }
 573         if (typeface == null) {
 574             Log.w(LOG, "Unable to create typeface, using default.");
 575             typeface = Typeface.DEFAULT;
 576         }
 577         final String fontSize = prefs.getString(getString(R.string.fontSizeKey), "14");
 578         try {
 579             fontSizeSp = Integer.parseInt(fontSize.trim());
 580         } catch (NumberFormatException e) {
 581             fontSizeSp = 14;
 582         }
 583
 584         // ContextMenu.
 585         registerForContextMenu(getListView());
 586
 587         // Cache some prefs.
 588         wordList = application.getWordListFile();
 589         saveOnlyFirstSubentry = prefs.getBoolean(getString(R.string.saveOnlyFirstSubentryKey),
 590                                 false);
 591         clickOpensContextMenu = prefs.getBoolean(getString(R.string.clickOpensContextMenuKey),
 592                                 !getPackageManager().hasSystemFeature(PackageManager.FEATURE_TOUCHSCREEN));
 593         Log.d(LOG, "wordList=" + wordList + ", saveOnlyFirstSubentry=" + saveOnlyFirstSubentry);
 594
 595         onCreateSetupActionBarAndSearchView();
 596
 597         View floatSwapButton = findViewById(R.id.floatSwapButton);
 598         floatSwapButton.setOnLongClickListener(new OnLongClickListener() {
 599             @Override
 600             public boolean onLongClick(View v) {
 601                 onLanguageButtonLongClick(v.getContext());
 602                 return true;
 603             }
 604         });
 605
 606         // Set the search text from the intent, then the saved state.
 607         String text = getIntent().getStringExtra(C.SEARCH_TOKEN);
 608         if (savedInstanceState != null) {
 609             text = savedInstanceState.getString(C.SEARCH_TOKEN);
 610         }
 611         if (text == null) {
 612             text = "";
 613         }
 614
 615         searchView.setOnSuggestionListener(new SearchView.OnSuggestionListener() {
 616             @Override
 617             public boolean onSuggestionSelect(int position) {
 618                 return false;
 619             }
 620
 621             @Override
 622             public boolean onSuggestionClick(int position) {
 623                 String h = searchHistory.get(position);
 624                 addToSearchHistory(h);
 625                 setSearchText(h, true);
 626                 return true;
 627             }
 628         });
 629         searchView.setSuggestionsAdapter(new CursorAdapter(this, text.isEmpty() ? searchHistoryCursor : null, 0) {
 630             @Override
 631             public View newView(Context context, Cursor c, ViewGroup p) {
 632                 TextView v = new TextView(context);
 633                 v.setTextColor(textColorFg);
 634                 v.setTypeface(typeface);
 635                 v.setTextSize(TypedValue.COMPLEX_UNIT_SP, 4 * fontSizeSp / 3);
 636                 return v;
 637             }
 638             @Override
 639             public void bindView(View v, Context context, Cursor c) {
 640                 TextView t = (TextView)v;
 641                 t.setText(c.getString(1));
 642             }
 643         });
 644
 645         // Set up search history
 646         ArrayList<String> savedHistory = null;
 647         if (savedInstanceState != null) savedHistory = savedInstanceState.getStringArrayList(C.SEARCH_HISTORY);
 648         if (savedHistory != null && !savedHistory.isEmpty()) {
 649         } else {
 650             savedHistory = new ArrayList<>();
 651             for (int i = 0; i < MAX_SEARCH_HISTORY; i++) {
 652                 String h = prefs.getString("history" + i, null);
 653                 if (h == null) break;
 654                 savedHistory.add(h);
 655             }
 656         }
 657         for (int i = savedHistory.size() - 1; i >= 0; i--) {
 658             addToSearchHistory(savedHistory.get(i));
 659         }
 660         addToSearchHistory(text);
 661
 662         setSearchText(text, true);
 663         Log.d(LOG, "Trying to restore searchText=" + text);
 664
 665         setDictionaryPrefs(this, dictFile, index.shortName);
 666
 667         updateLangButton();
 668         searchView.requestFocus();
 669
 670         // http://stackoverflow.com/questions/2833057/background-listview-becomes-black-when-scrolling
 671 //        getListView().setCacheColorHint(0);
 672     }
 673
 674     private void onCreateSetupActionBarAndSearchView() {
 675         ActionBar actionBar = getSupportActionBar();
 676         actionBar.setDisplayShowTitleEnabled(false);
 677         actionBar.setDisplayShowHomeEnabled(false);
 678         actionBar.setDisplayHomeAsUpEnabled(false);
 679
 680         final LinearLayout customSearchView = new LinearLayout(getSupportActionBar().getThemedContext());
 681
 682         final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 683             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 684         customSearchView.setLayoutParams(layoutParams);
 685
 686         languageButton = new ImageButton(customSearchView.getContext());
 687         languageButton.setId(R.id.languageButton);
 688         languageButton.setScaleType(ScaleType.FIT_CENTER);
 689         languageButton.setOnClickListener(new OnClickListener() {
 690             @Override
 691             public void onClick(View v) {
 692                 onLanguageButtonLongClick(v.getContext());
 693             }
 694         });
 695         languageButton.setAdjustViewBounds(true);
 696         LinearLayout.LayoutParams lpb = new LinearLayout.LayoutParams(application.languageButtonPixels, LinearLayout.LayoutParams.MATCH_PARENT);
 697         customSearchView.addView(languageButton, lpb);
 698
 699         searchView = new SearchView(getSupportActionBar().getThemedContext());
 700         searchView.setId(R.id.searchView);
 701
 702         // Get rid of search icon, it takes up too much space.
 703         // There is still text saying "search" in the search field.
 704         searchView.setIconifiedByDefault(true);
 705         searchView.setIconified(false);
 706
 707         searchView.setQueryHint(getString(R.string.searchText));
 708         searchView.setSubmitButtonEnabled(false);
 709         searchView.setInputType(InputType.TYPE_CLASS_TEXT);
 710         searchView.setImeOptions(
 711             EditorInfo.IME_ACTION_DONE |
 712             EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 713             // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 714             // 11
 715             EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 716         onQueryTextListener = new OnQueryTextListener() {
 717             @Override
 718             public boolean onQueryTextSubmit(String query) {
 719                 Log.d(LOG, "OnQueryTextListener: onQueryTextSubmit: " + searchView.getQuery());
 720                 addToSearchHistory();
 721                 hideKeyboard();
 722                 return true;
 723             }
 724
 725             @Override
 726             public boolean onQueryTextChange(String newText) {
 727                 Log.d(LOG, "OnQueryTextListener: onQueryTextChange: " + searchView.getQuery());
 728                 onSearchTextChange(searchView.getQuery().toString());
 729                 return true;
 730             }
 731         };
 732         searchView.setOnQueryTextListener(onQueryTextListener);
 733         searchView.setFocusable(true);
 734         searchTextView = searchView.findViewById(android.support.v7.appcompat.R.id.search_src_text);
 735         LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(0,
 736                 FrameLayout.LayoutParams.WRAP_CONTENT, 1);
 737         customSearchView.addView(searchView, lp);
 738
 739         actionBar.setCustomView(customSearchView);
 740         actionBar.setDisplayShowCustomEnabled(true);
 741
 742         // Avoid wasting space on large left inset
 743         Toolbar tb = (Toolbar)customSearchView.getParent();
 744         tb.setContentInsetsRelative(0, 0);
 745
 746         getListView().setNextFocusLeftId(R.id.searchView);
 747         findViewById(R.id.floatSwapButton).setNextFocusRightId(R.id.languageButton);
 748         languageButton.setNextFocusLeftId(R.id.floatSwapButton);
 749     }
 750
 751     @Override
 752     protected void onResume() {
 753         Log.d(LOG, "onResume");
 754         super.onResume();
 755         if (PreferenceActivity.prefsMightHaveChanged) {
 756             PreferenceActivity.prefsMightHaveChanged = false;
 757             finish();
 758             startActivity(getIntent());
 759         }
 760         showKeyboard();
 761     }
 762
 763     /**
 764      * Invoked when MyWebView returns, since the user might have clicked some
 765      * hypertext in the MyWebView.
 766      */
 767     @Override
 768     protected void onActivityResult(int requestCode, int resultCode, Intent result) {
 769         super.onActivityResult(requestCode, resultCode, result);
 770         if (result != null && result.hasExtra(C.SEARCH_TOKEN)) {
 771             Log.d(LOG, "onActivityResult: " + result.getStringExtra(C.SEARCH_TOKEN));
 772             jumpToTextFromHyperLink(result.getStringExtra(C.SEARCH_TOKEN), indexIndex);
 773         }
 774     }
 775
 776     private static void setDictionaryPrefs(final Context context, final File dictFile,
 777                                            final String indexShortName) {
 778         final SharedPreferences.Editor prefs = PreferenceManager.getDefaultSharedPreferences(
 779                 context).edit();
 780         if (dictFile != null) {
 781             prefs.putString(C.DICT_FILE, dictFile.getPath());
 782             prefs.putString(C.INDEX_SHORT_NAME, indexShortName);
 783         }
 784         prefs.remove(C.SEARCH_TOKEN); // Don't need to save search token.
 785         prefs.commit();
 786     }
 787
 788     @Override
 789     protected void onPause() {
 790         super.onPause();
 791         addToSearchHistory();
 792         saveSearchHistory();
 793     }
 794
 795     @Override
 796     protected void onDestroy() {
 797         super.onDestroy();
 798         if (dictRaf == null) {
 799             return;
 800         }
 801
 802         final SearchOperation searchOperation = currentSearchOperation;
 803         currentSearchOperation = null;
 804
 805         // Before we close the RAF, we have to wind the current search down.
 806         if (searchOperation != null) {
 807             Log.d(LOG, "Interrupting search to shut down.");
 808             currentSearchOperation = null;
 809             searchOperation.interrupted.set(true);
 810         }
 811         searchExecutor.shutdownNow();
 812         textToSpeech.shutdown();
 813         textToSpeech = null;
 814
 815         indexAdapter = null;
 816         setListAdapter(null);
 817
 818         try {
 819             Log.d(LOG, "Closing RAF.");
 820             dictRaf.close();
 821         } catch (IOException e) {
 822             Log.e(LOG, "Failed to close dictionary", e);
 823         }
 824         dictRaf = null;
 825     }
 826
 827     // --------------------------------------------------------------------------
 828     // Buttons
 829     // --------------------------------------------------------------------------
 830
 831     private void showKeyboard() {
 832         // For some reason, this doesn't always work the first time.
 833         // One way to replicate the problem:
 834         // Press the "task switch" button repeatedly to pause and resume
 835         for (int delay = 1; delay <= 101; delay += 100) {
 836             searchView.postDelayed(new Runnable() {
 837                 @Override
 838                 public void run() {
 839                     Log.d(LOG, "Trying to show soft keyboard.");
 840                     final boolean searchTextHadFocus = searchView.hasFocus();
 841                     searchView.requestFocusFromTouch();
 842                     searchTextView.requestFocus();
 843                     final InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 844                     manager.showSoftInput(searchView, InputMethodManager.SHOW_IMPLICIT);
 845                     manager.showSoftInput(searchTextView, InputMethodManager.SHOW_IMPLICIT);
 846                     if (!searchTextHadFocus) {
 847                         defocusSearchText();
 848                     }
 849                 }
 850             }, delay);
 851         }
 852         searchView.post(new Runnable() {
 853             @Override
 854             public void run() {
 855                 searchTextView.setThreshold(0);
 856                 searchTextView.showDropDown();
 857             }
 858         });
 859     }
 860
 861     private void hideKeyboard() {
 862         Log.d(LOG, "Hide soft keyboard.");
 863         searchView.clearFocus();
 864         InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 865         manager.hideSoftInputFromWindow(searchView.getWindowToken(), 0);
 866     }
 867
 868     private void updateLangButton() {
 869         final int flagId = IsoUtils.INSTANCE.getFlagIdForIsoCode(index.shortName);
 870         if (flagId != 0) {
 871             languageButton.setImageResource(flagId);
 872         } else {
 873             if (indexIndex % 2 == 0) {
 874                 languageButton.setImageResource(android.R.drawable.ic_media_next);
 875             } else {
 876                 languageButton.setImageResource(android.R.drawable.ic_media_previous);
 877             }
 878         }
 879         updateTTSLanguage(indexIndex);
 880     }
 881
 882     @SuppressWarnings("deprecation")
 883     private void speak(String text) {
 884         textToSpeech.speak(text, TextToSpeech.QUEUE_FLUSH, null);
 885     }
 886
 887     private void updateTTSLanguage(int i) {
 888         if (!ttsReady || index == null || textToSpeech == null) {
 889             Log.d(LOG, "Can't updateTTSLanguage.");
 890             return;
 891         }
 892         final Locale locale = new Locale(dictionary.indices.get(i).sortLanguage.getIsoCode());
 893         Log.d(LOG, "Setting TTS locale to: " + locale);
 894         try {
 895             final int ttsResult = textToSpeech.setLanguage(locale);
 896             if (ttsResult != TextToSpeech.LANG_AVAILABLE &&
 897                     ttsResult != TextToSpeech.LANG_COUNTRY_AVAILABLE) {
 898                 Log.e(LOG, "TTS not available in this language: ttsResult=" + ttsResult);
 899             }
 900         } catch (Exception e) {
 901             if (!isFinishing())
 902                 Toast.makeText(this, getString(R.string.TTSbroken), Toast.LENGTH_LONG).show();
 903         }
 904     }
 905
 906     public void onSearchButtonClick(View dummy) {
 907         if (!searchView.hasFocus()) {
 908             searchView.requestFocus();
 909         }
 910         if (searchView.getQuery().toString().length() > 0) {
 911             addToSearchHistory();
 912             searchView.setQuery("", false);
 913         }
 914         showKeyboard();
 915         searchView.setIconified(false);
 916     }
 917
 918     public void onLanguageButtonClick(View dummy) {
 919         if (dictionary.indices.size() == 1) {
 920             // No need to work to switch indices.
 921             return;
 922         }
 923         if (currentSearchOperation != null) {
 924             currentSearchOperation.interrupted.set(true);
 925             currentSearchOperation = null;
 926         }
 927         setIndexAndSearchText((indexIndex + 1) % dictionary.indices.size(),
 928                               searchView.getQuery().toString(), false);
 929     }
 930
 931     private void onLanguageButtonLongClick(final Context context) {
 932         final Dialog dialog = new Dialog(context);
 933         dialog.setContentView(R.layout.select_dictionary_dialog);
 934         dialog.setTitle(R.string.selectDictionary);
 935
 936         final List<DictionaryInfo> installedDicts = application.getDictionariesOnDevice(null);
 937
 938         ListView listView = dialog.findViewById(android.R.id.list);
 939         final Button button = new Button(listView.getContext());
 940         final String name = getString(R.string.dictionaryManager);
 941         button.setText(name);
 942         final IntentLauncher intentLauncher = new IntentLauncher(listView.getContext(),
 943         DictionaryManagerActivity.getLaunchIntent(getApplicationContext())) {
 944             @Override
 945             protected void onGo() {
 946                 dialog.dismiss();
 947                 DictionaryActivity.this.finish();
 948             }
 949         };
 950         button.setOnClickListener(intentLauncher);
 951         listView.addHeaderView(button);
 952
 953         listView.setItemsCanFocus(true);
 954         listView.setAdapter(new BaseAdapter() {
 955             @Override
 956             public View getView(int position, View convertView, ViewGroup parent) {
 957                 final DictionaryInfo dictionaryInfo = getItem(position);
 958
 959                 final LinearLayout result = new LinearLayout(parent.getContext());
 960
 961                 for (int i = 0; i < dictionaryInfo.indexInfos.size(); ++i) {
 962                     final IndexInfo indexInfo = dictionaryInfo.indexInfos.get(i);
 963                     final View button = IsoUtils.INSTANCE.createButton(parent.getContext(),
 964                             indexInfo, application.languageButtonPixels);
 965                     final IntentLauncher intentLauncher = new IntentLauncher(parent.getContext(),
 966                             getLaunchIntent(getApplicationContext(),
 967                                             application.getPath(dictionaryInfo.uncompressedFilename),
 968                     indexInfo.shortName, searchView.getQuery().toString())) {
 969                         @Override
 970                         protected void onGo() {
 971                             dialog.dismiss();
 972                             DictionaryActivity.this.finish();
 973                         }
 974                     };
 975                     button.setOnClickListener(intentLauncher);
 976                     if (i == indexIndex && dictFile != null &&
 977                             dictFile.getName().equals(dictionaryInfo.uncompressedFilename)) {
 978                         button.setPressed(true);
 979                     }
 980                     result.addView(button);
 981                 }
 982
 983                 final TextView nameView = new TextView(parent.getContext());
 984                 final String name = application
 985                                     .getDictionaryName(dictionaryInfo.uncompressedFilename);
 986                 nameView.setText(name);
 987                 final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 988                     ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 989                 layoutParams.width = 0;
 990                 layoutParams.weight = 1.0f;
 991                 nameView.setLayoutParams(layoutParams);
 992                 nameView.setGravity(Gravity.CENTER_VERTICAL);
 993                 result.addView(nameView);
 994                 return result;
 995             }
 996
 997             @Override
 998             public long getItemId(int position) {
 999                 return position;
1000             }
1001
1002             @Override
1003             public DictionaryInfo getItem(int position) {
1004                 return installedDicts.get(position);
1005             }
1006
1007             @Override
1008             public int getCount() {
1009                 return installedDicts.size();
1010             }
1011         });
1012         dialog.show();
1013     }
1014
1015     private void onUpDownButton(final boolean up) {
1016         if (isFiltered()) {
1017             return;
1018         }
1019         final int firstVisibleRow = getListView().getFirstVisiblePosition();
1020         final RowBase row = index.rows.get(firstVisibleRow);
1021         final TokenRow tokenRow = row.getTokenRow(true);
1022         final int destIndexEntry;
1023         if (up) {
1024             if (row != tokenRow) {
1025                 destIndexEntry = tokenRow.referenceIndex;
1026             } else {
1027                 destIndexEntry = Math.max(tokenRow.referenceIndex - 1, 0);
1028             }
1029         } else {
1030             // Down
1031             destIndexEntry = Math.min(tokenRow.referenceIndex + 1, index.sortedIndexEntries.size() - 1);
1032         }
1033         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
1034         Log.d(LOG, "onUpDownButton, destIndexEntry=" + dest.token);
1035         setSearchText(dest.token, false);
1036         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
1037         defocusSearchText();
1038     }
1039
1040     private void onRandomWordButton() {
1041         int destIndexEntry = rand.nextInt(index.sortedIndexEntries.size());
1042         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
1043         setSearchText(dest.token, false);
1044         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
1045         defocusSearchText();
1046     }
1047
1048     // --------------------------------------------------------------------------
1049     // Options Menu
1050     // --------------------------------------------------------------------------
1051
1052     @Override
1053     public boolean onCreateOptionsMenu(final Menu menu) {
1054
1055         if (PreferenceManager.getDefaultSharedPreferences(this)
1056                 .getBoolean(getString(R.string.showPrevNextButtonsKey), true)) {
1057             // Next word.
1058             nextWordMenuItem = menu.add(getString(R.string.nextWord))
1059                                .setIcon(R.drawable.arrow_down_float);
1060             MenuItemCompat.setShowAsAction(nextWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
1061             nextWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
1062                 @Override
1063                 public boolean onMenuItemClick(MenuItem item) {
1064                     onUpDownButton(false);
1065                     return true;
1066                 }
1067             });
1068
1069             // Previous word.
1070             previousWordMenuItem = menu.add(getString(R.string.previousWord))
1071                                    .setIcon(R.drawable.arrow_up_float);
1072             MenuItemCompat.setShowAsAction(previousWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
1073             previousWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
1074                 @Override
1075                 public boolean onMenuItemClick(MenuItem item) {
1076                     onUpDownButton(true);
1077                     return true;
1078                 }
1079             });
1080         }
1081
1082         final MenuItem randomWordMenuItem = menu.add(getString(R.string.randomWord));
1083         randomWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
1084             @Override
1085             public boolean onMenuItemClick(MenuItem item) {
1086                 onRandomWordButton();
1087                 return true;
1088             }
1089         });
1090
1091         {
1092             final MenuItem dictionaryManager = menu.add(getString(R.string.dictionaryManager));
1093             MenuItemCompat.setShowAsAction(dictionaryManager, MenuItem.SHOW_AS_ACTION_NEVER);
1094             dictionaryManager.setOnMenuItemClickListener(new OnMenuItemClickListener() {
1095                 public boolean onMenuItemClick(final MenuItem menuItem) {
1096                     startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
1097                     finish();
1098                     return false;
1099                 }
1100             });
1101         }
1102
1103         {
1104             final MenuItem aboutDictionary = menu.add(getString(R.string.aboutDictionary));
1105             MenuItemCompat.setShowAsAction(aboutDictionary, MenuItem.SHOW_AS_ACTION_NEVER);
1106             aboutDictionary.setOnMenuItemClickListener(new OnMenuItemClickListener() {
1107                 public boolean onMenuItemClick(final MenuItem menuItem) {
1108                     final Context context = getListView().getContext();
1109                     final Dialog dialog = new Dialog(context);
1110                     dialog.setContentView(R.layout.about_dictionary_dialog);
1111                     final TextView textView = dialog.findViewById(R.id.text);
1112
1113                     dialog.setTitle(dictFileTitleName);
1114
1115                     final StringBuilder builder = new StringBuilder();
1116                     final DictionaryInfo dictionaryInfo = dictionary.getDictionaryInfo();
1117                     if (dictionaryInfo != null) {
1118                         try {
1119                             dictionaryInfo.uncompressedBytes = dictRaf.size();
1120                         } catch (IOException e) {
1121                         }
1122                         builder.append(dictionaryInfo.dictInfo).append("\n\n");
1123                         if (dictFile != null) {
1124                             builder.append(getString(R.string.dictionaryPath, dictFile.getPath()))
1125                             .append("\n");
1126                         }
1127                         builder.append(
1128                             getString(R.string.dictionarySize, dictionaryInfo.uncompressedBytes))
1129                         .append("\n");
1130                         builder.append(
1131                             getString(R.string.dictionaryCreationTime,
1132                                       dictionaryInfo.creationMillis)).append("\n");
1133                         for (final IndexInfo indexInfo : dictionaryInfo.indexInfos) {
1134                             builder.append("\n");
1135                             builder.append(getString(R.string.indexName, indexInfo.shortName))
1136                             .append("\n");
1137                             builder.append(
1138                                 getString(R.string.mainTokenCount, indexInfo.mainTokenCount))
1139                             .append("\n");
1140                         }
1141                         builder.append("\n");
1142                         builder.append(getString(R.string.sources)).append("\n");
1143                         for (final EntrySource source : dictionary.sources) {
1144                             builder.append(
1145                                 getString(R.string.sourceInfo, source.getName(),
1146                                           source.getNumEntries())).append("\n");
1147                         }
1148                     }
1149                     textView.setText(builder.toString());
1150
1151                     dialog.show();
1152                     final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
1153                     layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
1154                     layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
1155                     dialog.getWindow().setAttributes(layoutParams);
1156                     return false;
1157                 }
1158             });
1159         }
1160
1161         DictionaryApplication.onCreateGlobalOptionsMenu(this, menu);
1162
1163         return true;
1164     }
1165
1166     // --------------------------------------------------------------------------
1167     // Context Menu + clicks
1168     // --------------------------------------------------------------------------
1169
1170     @Override
1171     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1172         final AdapterContextMenuInfo adapterContextMenuInfo = (AdapterContextMenuInfo) menuInfo;
1173         final RowBase row = (RowBase) getListAdapter().getItem(adapterContextMenuInfo.position);
1174
1175         if (clickOpensContextMenu && (row instanceof HtmlEntry.Row ||
1176             (row instanceof TokenRow && ((TokenRow)row).getIndexEntry().htmlEntries.size() > 0))) {
1177             final List<HtmlEntry> html = row instanceof TokenRow ? ((TokenRow)row).getIndexEntry().htmlEntries : Collections.singletonList(((HtmlEntry.Row)row).getEntry());
1178             final String highlight = row instanceof HtmlEntry.Row ? row.getTokenRow(true).getToken() : null;
1179             final MenuItem open = menu.add("Open");
1180             open.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1181                 public boolean onMenuItemClick(MenuItem item) {
1182                     showHtml(html, highlight);
1183                     return false;
1184                 }
1185             });
1186         }
1187
1188         final android.view.MenuItem addToWordlist = menu.add(getString(R.string.addToWordList,
1189                 wordList.getName()));
1190         addToWordlist
1191         .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1192             public boolean onMenuItemClick(android.view.MenuItem item) {
1193                 onAppendToWordList(row);
1194                 return false;
1195             }
1196         });
1197
1198         final android.view.MenuItem share = menu.add("Share");
1199         share.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1200             public boolean onMenuItemClick(android.view.MenuItem item) {
1201                 Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
1202                 shareIntent.setType("text/plain");
1203                 shareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, row.getTokenRow(true)
1204                                      .getToken());
1205                 shareIntent.putExtra(android.content.Intent.EXTRA_TEXT,
1206                                      row.getRawText(saveOnlyFirstSubentry));
1207                 startActivity(shareIntent);
1208                 return false;
1209             }
1210         });
1211
1212         final android.view.MenuItem copy = menu.add(android.R.string.copy);
1213         copy.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1214             public boolean onMenuItemClick(android.view.MenuItem item) {
1215                 onCopy(row);
1216                 return false;
1217             }
1218         });
1219
1220         if (selectedSpannableText != null) {
1221             final String selectedText = selectedSpannableText;
1222             final android.view.MenuItem searchForSelection = menu.add(getString(
1223                         R.string.searchForSelection,
1224                         selectedSpannableText));
1225             searchForSelection
1226             .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1227                 public boolean onMenuItemClick(android.view.MenuItem item) {
1228                     jumpToTextFromHyperLink(selectedText, selectedSpannableIndex);
1229                     return false;
1230                 }
1231             });
1232             // Rats, this won't be shown:
1233             //searchForSelection.setIcon(R.drawable.abs__ic_search);
1234         }
1235
1236         if ((row instanceof TokenRow || selectedSpannableText != null) && ttsReady) {
1237             final android.view.MenuItem speak = menu.add(R.string.speak);
1238             final String textToSpeak = row instanceof TokenRow ? ((TokenRow) row).getToken() : selectedSpannableText;
1239             updateTTSLanguage(row instanceof TokenRow ? indexIndex : selectedSpannableIndex);
1240             speak.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1241                 @Override
1242                 public boolean onMenuItemClick(android.view.MenuItem item) {
1243                     speak(textToSpeak);
1244                     return false;
1245                 }
1246             });
1247         }
1248         if (row instanceof PairEntry.Row && ttsReady) {
1249             final List<Pair> pairs = ((PairEntry.Row)row).getEntry().pairs;
1250             final MenuItem speakLeft = menu.add(R.string.speak_left);
1251             speakLeft.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1252                 @Override
1253                 public boolean onMenuItemClick(android.view.MenuItem item) {
1254                     int idx = index.swapPairEntries ? 1 : 0;
1255                     updateTTSLanguage(idx);
1256                     String text = "";
1257                     for (Pair p : pairs) text += p.get(idx);
1258                     text = text.replaceAll("\\{[^{}]*\\}", "").replace("{", "").replace("}", "");
1259                     speak(text);
1260                     return false;
1261                 }
1262             });
1263             final MenuItem speakRight = menu.add(R.string.speak_right);
1264             speakRight.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1265                 @Override
1266                 public boolean onMenuItemClick(android.view.MenuItem item) {
1267                     int idx = index.swapPairEntries ? 0 : 1;
1268                     updateTTSLanguage(idx);
1269                     String text = "";
1270                     for (Pair p : pairs) text += p.get(idx);
1271                     text = text.replaceAll("\\{[^{}]*\\}", "").replace("{", "").replace("}", "");
1272                     speak(text);
1273                     return false;
1274                 }
1275             });
1276         }
1277     }
1278
1279     private void jumpToTextFromHyperLink(
1280         final String selectedText, final int defaultIndexToUse) {
1281         int indexToUse = -1;
1282         int numFound = 0;
1283         for (int i = 0; i < dictionary.indices.size(); ++i) {
1284             final Index index = dictionary.indices.get(i);
1285             if (indexPrepFinished) {
1286                 System.out.println("Doing index lookup: on " + selectedText);
1287                 final IndexEntry indexEntry = index.findExact(selectedText);
1288                 if (indexEntry != null) {
1289                     final TokenRow tokenRow = index.rows.get(indexEntry.startRow)
1290                                               .getTokenRow(false);
1291                     if (tokenRow != null && tokenRow.hasMainEntry) {
1292                         indexToUse = i;
1293                         ++numFound;
1294                     }
1295                 }
1296             } else {
1297                 Log.w(LOG, "Skipping findExact on index " + index.shortName);
1298             }
1299         }
1300         if (numFound != 1) {
1301             indexToUse = defaultIndexToUse;
1302         }
1303         // Without this extra delay, the call to jumpToRow that this
1304         // invokes doesn't always actually have any effect.
1305         final int actualIndexToUse = indexToUse;
1306         getListView().postDelayed(new Runnable() {
1307             @Override
1308             public void run() {
1309                 setIndexAndSearchText(actualIndexToUse, selectedText, true);
1310                 addToSearchHistory(selectedText);
1311             }
1312         }, 100);
1313     }
1314
1315     /**
1316      * Called when user clicks outside of search text, so that they can start
1317      * typing again immediately.
1318      */
1319     private void defocusSearchText() {
1320         // Log.d(LOG, "defocusSearchText");
1321         // Request focus so that if we start typing again, it clears the text
1322         // input.
1323         getListView().requestFocus();
1324
1325         // Visual indication that a new keystroke will clear the search text.
1326         // Doesn't seem to work unless searchText has focus.
1327         // searchView.selectAll();
1328     }
1329
1330     private void onListItemClick(ListView l, View v, int rowIdx, long id) {
1331         defocusSearchText();
1332         if (clickOpensContextMenu && dictRaf != null) {
1333             openContextMenu(v);
1334         } else {
1335             final RowBase row = (RowBase)getListAdapter().getItem(rowIdx);
1336             if (!(row instanceof PairEntry.Row)) {
1337                 v.performClick();
1338             }
1339         }
1340     }
1341
1342     @SuppressLint("SimpleDateFormat")
1343     private void onAppendToWordList(final RowBase row) {
1344         defocusSearchText();
1345
1346         final StringBuilder rawText = new StringBuilder();
1347         rawText.append(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(new Date())).append("\t");
1348         rawText.append(index.longName).append("\t");
1349         rawText.append(row.getTokenRow(true).getToken()).append("\t");
1350         rawText.append(row.getRawText(saveOnlyFirstSubentry));
1351         Log.d(LOG, "Writing : " + rawText);
1352
1353         try {
1354             wordList.getParentFile().mkdirs();
1355             final PrintWriter out = new PrintWriter(new FileWriter(wordList, true));
1356             out.println(rawText);
1357             out.close();
1358         } catch (Exception e) {
1359             Log.e(LOG, "Unable to append to " + wordList.getAbsolutePath(), e);
1360             if (!isFinishing())
1361                 Toast.makeText(this,
1362                                getString(R.string.failedAddingToWordList, wordList.getAbsolutePath()),
1363                                Toast.LENGTH_LONG).show();
1364         }
1365     }
1366
1367     @SuppressWarnings("deprecation")
1368     private void onCopy(final RowBase row) {
1369         defocusSearchText();
1370
1371         Log.d(LOG, "Copy, row=" + row);
1372         final StringBuilder result = new StringBuilder();
1373         result.append(row.getRawText(false));
1374         final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
1375         clipboardManager.setText(result.toString());
1376         Log.d(LOG, "Copied: " + result);
1377     }
1378
1379     @Override
1380     public boolean onKeyDown(final int keyCode, final KeyEvent event) {
1381         if (event.getUnicodeChar() != 0) {
1382             if (!searchView.hasFocus()) {
1383                 setSearchText("" + (char) event.getUnicodeChar(), true);
1384                 searchView.requestFocus();
1385             }
1386             return true;
1387         }
1388         if (keyCode == KeyEvent.KEYCODE_BACK) {
1389             // Log.d(LOG, "Clearing dictionary prefs.");
1390             // Pretend that we just autolaunched so that we won't do it again.
1391             // DictionaryManagerActivity.lastAutoLaunchMillis =
1392             // System.currentTimeMillis();
1393         }
1394         if (keyCode == KeyEvent.KEYCODE_ENTER) {
1395             Log.d(LOG, "Trying to hide soft keyboard.");
1396             final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
1397             View focus = getCurrentFocus();
1398             if (inputManager != null && focus != null) {
1399                 inputManager.hideSoftInputFromWindow(focus.getWindowToken(),
1400                                                      InputMethodManager.HIDE_NOT_ALWAYS);
1401             }
1402             return true;
1403         }
1404         return super.onKeyDown(keyCode, event);
1405     }
1406
1407     private void setIndexAndSearchText(int newIndex, String newSearchText, boolean hideKeyboard) {
1408         Log.d(LOG, "Changing index to: " + newIndex);
1409         if (newIndex == -1) {
1410             Log.e(LOG, "Invalid index.");
1411             newIndex = 0;
1412         }
1413         if (newIndex != indexIndex) {
1414             indexIndex = newIndex;
1415             index = dictionary.indices.get(indexIndex);
1416             indexAdapter = new IndexAdapter(index);
1417             setListAdapter(indexAdapter);
1418             Log.d(LOG, "changingIndex, newLang=" + index.longName);
1419             setDictionaryPrefs(this, dictFile, index.shortName);
1420             updateLangButton();
1421         }
1422         setSearchText(newSearchText, true, hideKeyboard);
1423     }
1424
1425     private void setSearchText(final String text, final boolean triggerSearch, boolean hideKeyboard) {
1426         Log.d(LOG, "setSearchText, text=" + text + ", triggerSearch=" + triggerSearch);
1427         // Disable the listener, because sometimes it doesn't work.
1428         searchView.setOnQueryTextListener(null);
1429         searchView.setQuery(text, false);
1430         searchView.setOnQueryTextListener(onQueryTextListener);
1431
1432         if (triggerSearch) {
1433             onSearchTextChange(text);
1434         }
1435
1436         // We don't want to show virtual keyboard when we're changing searchView text programatically:
1437         if (hideKeyboard) {
1438             hideKeyboard();
1439         }
1440     }
1441
1442     private void setSearchText(final String text, final boolean triggerSearch) {
1443         setSearchText(text, triggerSearch, true);
1444     }
1445
1446     // --------------------------------------------------------------------------
1447     // SearchOperation
1448     // --------------------------------------------------------------------------
1449
1450     private void searchFinished(final SearchOperation searchOperation) {
1451         if (searchOperation.interrupted.get()) {
1452             Log.d(LOG, "Search operation was interrupted: " + searchOperation);
1453             return;
1454         }
1455         if (searchOperation != this.currentSearchOperation) {
1456             Log.d(LOG, "Stale searchOperation finished: " + searchOperation);
1457             return;
1458         }
1459
1460         final Index.IndexEntry searchResult = searchOperation.searchResult;
1461         Log.d(LOG, "searchFinished: " + searchOperation + ", searchResult=" + searchResult);
1462
1463         currentSearchOperation = null;
1464         // Note: it's important to post to the ListView, otherwise
1465         // the jumpToRow will randomly not work.
1466         getListView().post(new Runnable() {
1467             @Override
1468             public void run() {
1469                 if (currentSearchOperation == null) {
1470                     if (searchResult != null) {
1471                         if (isFiltered()) {
1472                             clearFiltered();
1473                         }
1474                         jumpToRow(searchResult.startRow);
1475                     } else if (searchOperation.multiWordSearchResult != null) {
1476                         // Multi-row search....
1477                         setFiltered(searchOperation);
1478                     } else {
1479                         throw new IllegalStateException("This should never happen.");
1480                     }
1481                 } else {
1482                     Log.d(LOG, "More coming, waiting for currentSearchOperation.");
1483                 }
1484             }
1485         });
1486     }
1487
1488     private void jumpToRow(final int row) {
1489         Log.d(LOG, "jumpToRow: " + row + ", refocusSearchText=" + false);
1490         // getListView().requestFocusFromTouch();
1491         getListView().setSelectionFromTop(row, 0);
1492         getListView().setSelected(true);
1493     }
1494
1495     private static final Pattern WHITESPACE = Pattern.compile("\\s+");
1496
1497     final class SearchOperation implements Runnable {
1498
1499         final AtomicBoolean interrupted = new AtomicBoolean(false);
1500
1501         final String searchText;
1502
1503         List<String> searchTokens; // filled in for multiWord.
1504
1505         final Index index;
1506
1507         long searchStartMillis;
1508
1509         Index.IndexEntry searchResult;
1510
1511         List<RowBase> multiWordSearchResult;
1512
1513         boolean done = false;
1514
1515         SearchOperation(final String searchText, final Index index) {
1516             this.searchText = StringUtil.normalizeWhitespace(searchText);
1517             this.index = index;
1518         }
1519
1520         public String toString() {
1521             return String.format("SearchOperation(%s,%s)", searchText, interrupted);
1522         }
1523
1524         @Override
1525         public void run() {
1526             try {
1527                 searchStartMillis = System.currentTimeMillis();
1528                 final String[] searchTokenArray = WHITESPACE.split(searchText);
1529                 if (searchTokenArray.length == 1) {
1530                     searchResult = index.findInsertionPoint(searchText, interrupted);
1531                 } else {
1532                     searchTokens = Arrays.asList(searchTokenArray);
1533                     multiWordSearchResult = index.multiWordSearch(searchText, searchTokens,
1534                                             interrupted);
1535                 }
1536                 Log.d(LOG,
1537                       "searchText=" + searchText + ", searchDuration="
1538                       + (System.currentTimeMillis() - searchStartMillis)
1539                       + ", interrupted=" + interrupted.get());
1540                 if (!interrupted.get()) {
1541                     uiHandler.post(new Runnable() {
1542                         @Override
1543                         public void run() {
1544                             searchFinished(SearchOperation.this);
1545                         }
1546                     });
1547                 } else {
1548                     Log.d(LOG, "interrupted, skipping searchFinished.");
1549                 }
1550             } catch (Exception e) {
1551                 Log.e(LOG, "Failure during search (can happen during Activity close): " + e.getMessage());
1552             } finally {
1553                 synchronized (this) {
1554                     done = true;
1555                     this.notifyAll();
1556                 }
1557             }
1558         }
1559     }
1560
1561     // --------------------------------------------------------------------------
1562     // IndexAdapter
1563     // --------------------------------------------------------------------------
1564
1565     private void showHtml(final List<HtmlEntry> htmlEntries, final String htmlTextToHighlight) {
1566         String html = HtmlEntry.htmlBody(htmlEntries, index.shortName);
1567         String style = "";
1568         if (typeface == Typeface.SERIF) { style = "font-family: serif;"; }
1569         else if (typeface == Typeface.SANS_SERIF) { style = "font-family: sans-serif;"; }
1570         else if (typeface == Typeface.MONOSPACE) { style = "font-family: monospace;"; }
1571         if (application.getSelectedTheme() == DictionaryApplication.Theme.DEFAULT)
1572             style += "background-color: black; color: white;";
1573         // Log.d(LOG, "html=" + html);
1574         startActivityForResult(
1575             HtmlDisplayActivity.getHtmlIntent(getApplicationContext(), String.format(
1576                     "<html><head><meta name=\"viewport\" content=\"width=device-width\"></head><body style=\"%s\">%s</body></html>", style, html),
1577                                               htmlTextToHighlight, false),
1578             0);
1579     }
1580
1581     final class IndexAdapter extends BaseAdapter {
1582
1583         private static final float PADDING_DEFAULT_DP = 8;
1584
1585         private static final float PADDING_LARGE_DP = 16;
1586
1587         final Index index;
1588
1589         final List<RowBase> rows;
1590
1591         final Set<String> toHighlight;
1592
1593         private int mPaddingDefault;
1594
1595         private int mPaddingLarge;
1596
1597         IndexAdapter(final Index index) {
1598             this.index = index;
1599             rows = index.rows;
1600             this.toHighlight = null;
1601             getMetrics();
1602         }
1603
1604         IndexAdapter(final Index index, final List<RowBase> rows, final List<String> toHighlight) {
1605             this.index = index;
1606             this.rows = rows;
1607             this.toHighlight = new LinkedHashSet<>(toHighlight);
1608             getMetrics();
1609         }
1610
1611         private void getMetrics() {
1612             float scale = 1;
1613             // Get the screen's density scale
1614             // The previous method getResources().getDisplayMetrics()
1615             // used to occasionally trigger a null pointer exception,
1616             // so try this instead.
1617             // As it still crashes, add a fallback
1618             try {
1619                 DisplayMetrics dm = new DisplayMetrics();
1620                 getWindowManager().getDefaultDisplay().getMetrics(dm);
1621                 scale = dm.density;
1622             } catch (NullPointerException ignored)
1623             {}
1624             // Convert the dps to pixels, based on density scale
1625             mPaddingDefault = (int) (PADDING_DEFAULT_DP * scale + 0.5f);
1626             mPaddingLarge = (int) (PADDING_LARGE_DP * scale + 0.5f);
1627         }
1628
1629         @Override
1630         public int getCount() {
1631             return rows.size();
1632         }
1633
1634         @Override
1635         public RowBase getItem(int position) {
1636             return rows.get(position);
1637         }
1638
1639         @Override
1640         public long getItemId(int position) {
1641             return getItem(position).index();
1642         }
1643
1644         @Override
1645         public int getViewTypeCount() {
1646             return 5;
1647         }
1648
1649         @Override
1650         public int getItemViewType(int position) {
1651             final RowBase row = getItem(position);
1652             if (row instanceof PairEntry.Row) {
1653                 final PairEntry entry = ((PairEntry.Row)row).getEntry();
1654                 final int rowCount = entry.pairs.size();
1655                 return rowCount > 1 ? 1 : 0;
1656             } else if (row instanceof TokenRow) {
1657                 final IndexEntry indexEntry = ((TokenRow)row).getIndexEntry();
1658                 return indexEntry.htmlEntries.isEmpty() ? 2 : 3;
1659             } else if (row instanceof HtmlEntry.Row) {
1660                 return 4;
1661             } else {
1662                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1663             }
1664         }
1665
1666         @Override
1667         public View getView(int position, View convertView, ViewGroup parent) {
1668             final RowBase row = getItem(position);
1669             if (row instanceof PairEntry.Row) {
1670                 return getView(position, (PairEntry.Row) row, parent, (TableLayout)convertView);
1671             } else if (row instanceof TokenRow) {
1672                 return getView((TokenRow) row, parent, (TextView)convertView);
1673             } else if (row instanceof HtmlEntry.Row) {
1674                 return getView((HtmlEntry.Row) row, parent, (TextView)convertView);
1675             } else {
1676                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1677             }
1678         }
1679
1680         private void addBoldSpans(String token, String col1Text, Spannable col1Spannable) {
1681             int startPos = 0;
1682             while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
1683                 col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos, startPos
1684                                       + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1685                 startPos += token.length();
1686             }
1687         }
1688
1689         private TableLayout getView(final int position, PairEntry.Row row, ViewGroup parent,
1690                                     TableLayout result) {
1691             final Context context = parent.getContext();
1692             final PairEntry entry = row.getEntry();
1693             final int rowCount = entry.pairs.size();
1694             if (result == null) {
1695                 result = new TableLayout(context);
1696                 result.setStretchAllColumns(true);
1697                 // Because we have a Button inside a ListView row:
1698                 // http://groups.google.com/group/android-developers/browse_thread/thread/3d96af1530a7d62a?pli=1
1699                 result.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
1700                 result.setClickable(true);
1701                 result.setFocusable(false);
1702                 result.setLongClickable(true);
1703 //                result.setBackgroundResource(android.R.drawable.menuitem_background);
1704
1705                 result.setBackgroundResource(theme.normalRowBg);
1706             } else if (result.getChildCount() > rowCount) {
1707                 result.removeViews(rowCount, result.getChildCount() - rowCount);
1708             }
1709
1710             for (int r = result.getChildCount(); r < rowCount; ++r) {
1711                 final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams(0, LinearLayout.LayoutParams.WRAP_CONTENT);
1712                 layoutParams.leftMargin = mPaddingLarge;
1713
1714                 final TableRow tableRow = new TableRow(result.getContext());
1715
1716                 final TextView col1 = new TextView(tableRow.getContext());
1717                 final TextView col2 = new TextView(tableRow.getContext());
1718                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
1719                     col1.setTextIsSelectable(true);
1720                     col2.setTextIsSelectable(true);
1721                 }
1722                 col1.setTextColor(textColorFg);
1723                 col2.setTextColor(textColorFg);
1724
1725                 col1.setWidth(1);
1726                 col2.setWidth(1);
1727
1728                 col1.setTypeface(typeface);
1729                 col2.setTypeface(typeface);
1730                 col1.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1731                 col2.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1732                 // col2.setBackgroundResource(theme.otherLangBg);
1733
1734                 if (index.swapPairEntries) {
1735                     col2.setOnLongClickListener(textViewLongClickListenerIndex0);
1736                     col1.setOnLongClickListener(textViewLongClickListenerIndex1);
1737                 } else {
1738                     col1.setOnLongClickListener(textViewLongClickListenerIndex0);
1739                     col2.setOnLongClickListener(textViewLongClickListenerIndex1);
1740                 }
1741
1742                 // Set the columns in the table.
1743                 if (r == 0) {
1744                     tableRow.addView(col1, layoutParams);
1745                     tableRow.addView(col2, layoutParams);
1746                 } else {
1747                     for (int i = 0; i < 2; i++) {
1748                         final TextView bullet = new TextView(tableRow.getContext());
1749                         bullet.setText(" • ");
1750                         LinearLayout wrapped = new LinearLayout(context);
1751                         wrapped.setOrientation(LinearLayout.HORIZONTAL);
1752                         LinearLayout.LayoutParams p1 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT, 0);
1753                         wrapped.addView(bullet, p1);
1754                         LinearLayout.LayoutParams p2 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, 1);
1755                         wrapped.addView(i == 0 ? col1 : col2, p2);
1756                         tableRow.addView(wrapped, layoutParams);
1757                     }
1758                 }
1759
1760                 result.addView(tableRow);
1761             }
1762
1763             for (int r = 0; r < rowCount; ++r) {
1764                 final TableRow tableRow = (TableRow)result.getChildAt(r);
1765                 View left = tableRow.getChildAt(0);
1766                 View right = tableRow.getChildAt(1);
1767                 if (r > 0) {
1768                     left = ((ViewGroup)left).getChildAt(1);
1769                     right = ((ViewGroup)right).getChildAt(1);
1770                 }
1771                 final TextView col1 = (TextView)left;
1772                 final TextView col2 = (TextView)right;
1773
1774                 // Set what's in the columns.
1775                 final Pair pair = entry.pairs.get(r);
1776                 final String col1Text = index.swapPairEntries ? pair.lang2 : pair.lang1;
1777                 final String col2Text = index.swapPairEntries ? pair.lang1 : pair.lang2;
1778                 final Spannable col1Spannable = new SpannableString(col1Text);
1779                 final Spannable col2Spannable = new SpannableString(col2Text);
1780
1781                 // Bold the token instances in col1.
1782                 if (toHighlight != null) {
1783                     for (final String token : toHighlight) {
1784                         addBoldSpans(token, col1Text, col1Spannable);
1785                     }
1786                 } else
1787                     addBoldSpans(row.getTokenRow(true).getToken(), col1Text, col1Spannable);
1788
1789                 createTokenLinkSpans(col1, col1Spannable, col1Text);
1790                 createTokenLinkSpans(col2, col2Spannable, col2Text);
1791
1792                 col1.setText(col1Spannable);
1793                 col2.setText(col2Spannable);
1794             }
1795
1796             result.setOnClickListener(new TextView.OnClickListener() {
1797                 @Override
1798                 public void onClick(View v) {
1799                     DictionaryActivity.this.onListItemClick(getListView(), v, position, position);
1800                 }
1801             });
1802
1803             return result;
1804         }
1805
1806         private TextView getPossibleLinkToHtmlEntryView(final boolean isTokenRow,
1807                 final String text, final boolean hasMainEntry, final List<HtmlEntry> htmlEntries,
1808                 final String htmlTextToHighlight, ViewGroup parent, TextView textView) {
1809             final Context context = parent.getContext();
1810             if (textView == null) {
1811                 textView = new TextView(context);
1812                 // set up things invariant across one ItemViewType
1813                 // ItemViewTypes handled here are:
1814                 // 2: isTokenRow == true, htmlEntries.isEmpty() == true
1815                 // 3: isTokenRow == true, htmlEntries.isEmpty() == false
1816                 // 4: isTokenRow == false, htmlEntries.isEmpty() == false
1817                 textView.setPadding(isTokenRow ? mPaddingDefault : mPaddingLarge, mPaddingDefault, mPaddingDefault, 0);
1818                 textView.setOnLongClickListener(indexIndex > 0 ? textViewLongClickListenerIndex1 : textViewLongClickListenerIndex0);
1819                 textView.setLongClickable(true);
1820
1821                 textView.setTypeface(typeface);
1822                 if (isTokenRow) {
1823                     textView.setTextAppearance(context, theme.tokenRowFg);
1824                     textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 4 * fontSizeSp / 3);
1825                 } else {
1826                     textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1827                 }
1828                 textView.setTextColor(textColorFg);
1829                 if (!htmlEntries.isEmpty()) {
1830                     textView.setClickable(true);
1831                     textView.setMovementMethod(LinkMovementMethod.getInstance());
1832                 }
1833             }
1834
1835             textView.setBackgroundResource(hasMainEntry ? theme.tokenRowMainBg
1836                                            : theme.tokenRowOtherBg);
1837
1838             // Make it so we can long-click on these token rows, too:
1839             final Spannable textSpannable = new SpannableString(text);
1840             createTokenLinkSpans(textView, textSpannable, text);
1841
1842             if (!htmlEntries.isEmpty()) {
1843                 final ClickableSpan clickableSpan = new ClickableSpan() {
1844                     @Override
1845                     public void onClick(View widget) {
1846                     }
1847                 };
1848                 textSpannable.setSpan(clickableSpan, 0, text.length(),
1849                         Spannable.SPAN_INCLUSIVE_INCLUSIVE);
1850                 textView.setOnClickListener(new OnClickListener() {
1851                     @Override
1852                     public void onClick(View v) {
1853                         showHtml(htmlEntries, htmlTextToHighlight);
1854                     }
1855                 });
1856             }
1857             textView.setText(textSpannable);
1858             return textView;
1859         }
1860
1861         private TextView getView(TokenRow row, ViewGroup parent, final TextView result) {
1862             final IndexEntry indexEntry = row.getIndexEntry();
1863             return getPossibleLinkToHtmlEntryView(true, indexEntry.token, row.hasMainEntry,
1864                                                   indexEntry.htmlEntries, null, parent, result);
1865         }
1866
1867         private TextView getView(HtmlEntry.Row row, ViewGroup parent, final TextView result) {
1868             final HtmlEntry htmlEntry = row.getEntry();
1869             final TokenRow tokenRow = row.getTokenRow(true);
1870             return getPossibleLinkToHtmlEntryView(false,
1871                                                   getString(R.string.seeAlso, htmlEntry.title, htmlEntry.entrySource.getName()),
1872                                                   false, Collections.singletonList(htmlEntry), tokenRow.getToken(), parent,
1873                                                   result);
1874         }
1875
1876     }
1877
1878     private static final Pattern CHAR_DASH = Pattern.compile("['\\p{L}\\p{M}\\p{N}]+");
1879
1880     private void createTokenLinkSpans(final TextView textView, final Spannable spannable,
1881                                       final String text) {
1882         // Saw from the source code that LinkMovementMethod sets the selection!
1883         // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.1_r1/android/text/method/LinkMovementMethod.java#LinkMovementMethod
1884         textView.setMovementMethod(LinkMovementMethod.getInstance());
1885         final Matcher matcher = CHAR_DASH.matcher(text);
1886         while (matcher.find()) {
1887             spannable.setSpan(new NonLinkClickableSpan(), matcher.start(),
1888                               matcher.end(),
1889                               Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1890         }
1891     }
1892
1893     private String selectedSpannableText = null;
1894
1895     private int selectedSpannableIndex = -1;
1896
1897     @Override
1898     public boolean onTouchEvent(MotionEvent event) {
1899         selectedSpannableText = null;
1900         selectedSpannableIndex = -1;
1901         return super.onTouchEvent(event);
1902     }
1903
1904     private class TextViewLongClickListener implements OnLongClickListener {
1905         final int index;
1906
1907         private TextViewLongClickListener(final int index) {
1908             this.index = index;
1909         }
1910
1911         @Override
1912         public boolean onLongClick(final View v) {
1913             final TextView textView = (TextView) v;
1914             final int start = textView.getSelectionStart();
1915             final int end = textView.getSelectionEnd();
1916             if (start >= 0 && end >= 0) {
1917                 selectedSpannableText = textView.getText().subSequence(start, end).toString();
1918                 selectedSpannableIndex = index;
1919             }
1920             return false;
1921         }
1922     }
1923
1924     private final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1925         0);
1926
1927     private final TextViewLongClickListener textViewLongClickListenerIndex1 = new TextViewLongClickListener(
1928         1);
1929
1930     // --------------------------------------------------------------------------
1931     // SearchText
1932     // --------------------------------------------------------------------------
1933
1934     private void onSearchTextChange(final String text) {
1935         if ("thadolina".equals(text)) {
1936             final Dialog dialog = new Dialog(getListView().getContext());
1937             dialog.setContentView(R.layout.thadolina_dialog);
1938             dialog.setTitle("Ti amo, amore mio!");
1939             final ImageView imageView = dialog.findViewById(R.id.thadolina_image);
1940             imageView.setOnClickListener(new OnClickListener() {
1941                 @Override
1942                 public void onClick(View v) {
1943                     final Intent intent = new Intent(Intent.ACTION_VIEW);
1944                     intent.setData(Uri.parse("https://sites.google.com/site/cfoxroxvday/vday2012"));
1945                     startActivity(intent);
1946                 }
1947             });
1948             dialog.show();
1949         }
1950         if (dictRaf == null) {
1951             Log.d(LOG, "searchText changed during shutdown, doing nothing.");
1952             return;
1953         }
1954
1955         // if (!searchView.hasFocus()) {
1956         // Log.d(LOG, "searchText changed without focus, doing nothing.");
1957         // return;
1958         // }
1959         Log.d(LOG, "onSearchTextChange: " + text);
1960         if (currentSearchOperation != null) {
1961             Log.d(LOG, "Interrupting currentSearchOperation.");
1962             currentSearchOperation.interrupted.set(true);
1963         }
1964         currentSearchOperation = new SearchOperation(text, index);
1965         searchExecutor.execute(currentSearchOperation);
1966         ((FloatingActionButton)findViewById(R.id.floatSearchButton)).setImageResource(text.length() > 0 ? R.drawable.ic_clear_black_24dp : R.drawable.ic_search_black_24dp);
1967         searchView.getSuggestionsAdapter().swapCursor(text.isEmpty() ? searchHistoryCursor : null);
1968         searchView.getSuggestionsAdapter().notifyDataSetChanged();
1969     }
1970
1971     // --------------------------------------------------------------------------
1972     // Filtered results.
1973     // --------------------------------------------------------------------------
1974
1975     private boolean isFiltered() {
1976         return rowsToShow != null;
1977     }
1978
1979     private void setFiltered(final SearchOperation searchOperation) {
1980         if (nextWordMenuItem != null) {
1981             nextWordMenuItem.setEnabled(false);
1982             previousWordMenuItem.setEnabled(false);
1983         }
1984         rowsToShow = searchOperation.multiWordSearchResult;
1985         setListAdapter(new IndexAdapter(index, rowsToShow, searchOperation.searchTokens));
1986     }
1987
1988     private void clearFiltered() {
1989         if (nextWordMenuItem != null) {
1990             nextWordMenuItem.setEnabled(true);
1991             previousWordMenuItem.setEnabled(true);
1992         }
1993         setListAdapter(new IndexAdapter(index));
1994         rowsToShow = null;
1995     }
1996
1997 }